• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Male (1) for box forming machine, and machine (100) and method for box forming (80). The male (1) comprises a support structure (2) provided with a core (3); and tilting pushers (4), each one mounted to pivot on a tilting axis (5), whose ends protrude from each of the four corners of said support structure (2), and have a first flat surface (7) configured to remain in use coplanar to a first side wall (81) of the box (80) to be formed, and a first and second edges (9, 10) configured to form a chamfered wall (83) that connects the first side wall (81) with the second side wall (82) at this corner of the box (80), so that the first edge (9) bends a first weakened line (84) that connects the chamfered wall (83) with the first side wall (81), and the second edge (10) bends the second line of weakness (85) that connects the chamfered wall (83) with the second side wall (82). Thus, essentially rectangular base boxes (90) are formed with chamfered walls (83) at their four corners. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2798000A1
    申请号:ES201930499
    申请日:2019-06-04
    公开日:2020-12-04
    发明作者:Olmos Telesforo Gonzalez
    申请人:Telesforo Gonzalez Maquinaria SL；
    IPC主号:
    专利说明:

    [0004] TECHNICAL SECTOR
    [0006] The present invention relates to a core, a machine and a method for forming boxes. The boxes are formed from flat sheets.
    [0008] Throughout this description, the term "flat sheet" is used to designate corrugated cardboard sheet, corrugated plastic sheet, compact cardboard sheet, compact plastic sheet, and the like.
    [0010] BACKGROUND OF THE INVENTION
    [0012] Documents US2798416 (A), US3978774 (A), ES235835 (U), ES255122 (U), US4581005A and ES2593823 (A1) disclose box-forming machines by folding and gluing die-cut sheets of sheet material. Said machines comprise a mold with a molding cavity and a conveyor for individually transporting flat plates from an initial position to the mouth of said molding cavity. Also said machines include a tap movable guided in a path aligned with said mouth of the molding cavity, and a tap drive that moves said core in use along said path aligned in an insertion direction, to press said flat plate and inserting it into the mold cavity causing a bending of parts thereof to form a box, and in an opposite extraction direction, to extract the core from the mold cavity. Furthermore, said machines comprise glue applicator equipment with a plurality of glue injectors that apply strings of glue to join parts of the plate by gluing.
    [0014] Document ES2318971B1 describes a core for a cardboard box-forming machine, of the type that comprises a support structure provided with a fixing base adapted to be attached to a mobile member of said machine capable of imparting a downward-upward movement to said supporting structure, four tilting pushers protruding from four corresponding corners of said supporting structure, two towards one side and two others towards another opposite side in a longitudinal direction, each tilting pusher being individually mounted to rotate about a horizontal axis and in cooperation with a twist limiter that keeps it rigid to press a cardboard box jig during a downward movement and allowing it to pivot to overcome a flap of the carton during an upward movement, and adjustment means to regulate the distances between the tilting pushers in the longitudinal and transverse directions of the support structure. The support structure comprises first and second longitudinal side plates on opposite sides in the transverse direction joined to each other by a transverse bridge of adjustable length and several transverse bars of adjustable length, wherein said transverse bridge supports said fixing base and is mounted so that its position can be adjusted in the vertical direction with respect to said first and second side plates, and where the rocker pushers are mounted on respective supports fixed to the first and second side plates so that their position can be individually adjusted in the longitudinal direction.
    [0016] The core of document ES2318971B1 is not capable of forming boxes with an essentially rectangular base with chamfers at their corners, where chamfered corner walls are located.
    [0018] It would be desirable to obtain a core for an essentially rectangular box forming machine with its chamfered corners.
    [0020] Complementarily, it would be desirable for the male to be configured for the assembly of boxes even from plates with faulty bending lines, with a bad cleft or split cut, taking advantage of the plate for its formation into a box even when the plate is manufactured (stamped ) in a defective manner. Thus, the box-forming machine, by means of the forming core, would be capable of forming boxes that, by means of the current solutions of the state of the art, it is not capable of forming. This must be achieved with the added difficulty that said box has a flange or flange that complicates the removal operation of the core, once the box has been formed with the core inside.
    [0022] Also in addition, it would be desirable for said male to be adjustable to be able to form boxes of different sizes without replacing or modifying parts of said male.
    [0024] EXPLANATION OF THE INVENTION
    [0026] To overcome the drawbacks set forth in the previous section, the present invention presents, according to a first aspect, a core for a box-forming machine from plates.
    [0027] Said male comprises a support structure provided with a core, and two side plates parallel to a first direction directly or indirectly attached to two opposite ends of said core.
    [0029] The tap further comprises at least two rocker pushers, one located towards one side and the other towards the opposite side of the core according to a second direction, each one mounted to pivot on a respective pivot axis parallel to a second direction perpendicular to the first direction.
    [0031] The male further comprises a rotation limiter associated with each tilting pusher, which cooperates with the respective tilting axis, to keep the tilting pusher rigid in an extended position where the tilting pusher is configured to press the base of a cardboard sheet during a drawing movement according to a third direction perpendicular to the first and second directions. Also, said rotation limiter and said tilting axis of each rocker pusher allows its respective rocker pusher to pivot to a retracted position to overcome a flange or flange of the box during an extraction movement according to the third direction in the opposite direction to the drawing movement . Said fin or edge can be, for example, a flap parallel to the base of the box originating from a side wall or else a flange that originates from the side wall and folds against itself, doubling the thickness of the side wall.
    [0033] In the male, the ends of the tilting pushers protrude from each of the four corners of said support structure, and each end of the tilting pushers comprises a first flat surface parallel to the side plates configured to be in use coplanar to a first side wall of the box.
    [0035] Likewise, each end of the tilting pushers that protrudes from each of the four corners of said support structure corresponding to a corner of the box to be formed further comprises a first edge essentially aligned with the third direction and coplanar to the plane of the first flat surface, and a second edge essentially aligned with the third direction and configured to be in use coplanar to a second side wall of the box perpendicular to the first side wall.
    [0037] Said first and second edges are configured to form a chamfered wall that connects the first side wall with the second side wall in this corner of the box, so that the first edge bends a first weakened line that connects the chamfered wall with the first side wall, and the second edge bends the second line of weakness that connects the chamfered wall with the second side wall.
    [0039] In this way, the core is configured to form boxes of essentially rectangular base with chamfered walls at their corners.
    [0041] Thus, an essentially rectangular box-forming core with its chamfered corners is achieved.
    [0042] Said male is configured for the assembly of boxes even from plates with faulty fold lines, with a bad split or split cut, taking advantage of the plate for its formation into a box even when the plate is manufactured (stamped) in a defective way. This is achieved with the added difficulty that said box has a flange or flange that complicates the extraction operation of the core, once the box has been formed with the core inside.
    [0044] Preferably, at each end of the tilting pushers that protrude from each of the four corners of said support structure, the first flat surface is configured to act as a stop wall before the bending and gluing of different parts of the plate that remain coplanar with the first side wall of the box.
    [0046] Preferably, the tilting pushers, the tilting shafts, the twist limiting devices cooperating with the tilting axis, and the support structure are configured to form boxes of essentially rectangular base with chamfered walls at their corners with the tilting pushers in an extended position at contact with the base of the box formed from the drawing movement according to the direction until the different parts of the sheet have been joined by folding and gluing to form the box.
    [0048] The previous paragraph refers to the fact that the parts of the plate from which the box is obtained will be bent with the male inside the box to provide a correct bending of the parts of the box by their weakened lines of bend. By making it possible to mount the box with the male inside, it enables the mounting of boxes from plates with faulty bending lines, with a bad crease or split cut, taking advantage of the plate for its formation into a box even when the plate is manufactured (stamped ) in a defective manner. This is achieved despite the added difficulty that said box has a fin or rim that complicates the removal of the core, once the box has been formed with the core inside.
    [0049] Also preferably, the respective first and second edges of the ends of the tilting pushers that protrude from each of the four corners of said support structure are adjustable according to the first direction and the second direction, to position the respective first and second edges in a desired position while maintaining the position of the respective fixed tilting axes with respect to the support structure.
    [0051] With this, an adjustable male is achieved to be able to form boxes of different sizes without replacing or modifying parts of said male, which causes productive stoppages. Furthermore, the regulation of said first and second edges while maintaining the position of the respective fixed tilting axes with respect to the support structure allows the formation of boxes with chamfered walls of different sizes and positions at the corners of the base box essentially rectangular with chamfers. in its corners.
    [0053] Thus, by means of these regulations, the male is configured to form a chamfered wall and boxes with corners provided with chamfered walls, whose first and second weakened edges are positioned in different positions, that is, the same male is capable of mounting boxes with chamfered walls of different sizes and / or positioned in different positions.
    [0055] Preferably, the respective first and second edges of the ends of the tilting pushers that protrude from each of the four corners of said support structure are adjustable in the first direction by means of a first adjustment device and are adjustable in the second direction. by means of a second regulation device, each respective regulation in the first direction being independent of each respective regulation in the second direction.
    [0057] In a preferred option, said first adjustment device comprises at least a first guide element aligned with the first direction, and a first blocking element that blocks the position of the first edge with respect to the pivot axis of the tilting pusher along the first direction to adjust the position of the first edge to a desired position along the first direction. In this preferred option, said second adjustment device comprises at least one second guide element aligned with the second direction, and a second blocking element that blocks the position of the second edge with respect to the pivot axis of the tilting pusher along the second direction to regulate the position of the second edge at a desired position along the second direction.
    [0059] Complementary to the previous paragraph, the male also comprises a first and a second end member fixed in use, respectively, by means of the first and second blocking element at each of the ends of the rocker pusher that protrudes from each of the four corners of said structure. of support.
    [0060] The first end member is provided with the first flat surface, which is bounded on one side by the first edge.
    [0062] The second end member is provided with a second flat surface perpendicular to the side plates, which is delimited on one side by the second edge.
    [0064] Thus, each said end of the tilting pusher is configured to position the first edge according to a first direction in a desired position, and to position the second edge according to a second direction in a desired position.
    [0066] Also complementary, the male further comprises at least two elastic elements provided with a distal end and a proximal end, wherein each proximal end is directly or indirectly connected to the support structure, and each distal end is connected to a respective rocker pusher, to keep the rocker pushers in their extended position during the drawing movement and before the plate from which the box is obtained contacts the rocker pushers.
    [0068] In a complementary manner, each of the ends of the tilting pushers lacks a chamfered face with respect to the first flat surface joined or forming an integral part in use of the respective said end of the tilting pusher configured to be coplanar to the chamfered flap.
    [0070] In one option, the male comprises four rocker pushers, two towards one side and two others towards the opposite side of the core according to the first direction, each one mounted to rotate individually about a respective axis of inclination perpendicular to the side plates.
    [0072] Complementary to the previous option, the male comprises a third regulating device associated with each of the four tilting pushers to regulating the distance of the tilting pushers in the first direction with respect to the support structure, and a four adjusting device to regulate the distance between the tilting pushers in the second direction with respect to the support structure.
    [0074] In one option, each side plate has associated two third regulating devices.
    [0076] Each third regulating device comprises a guide element attached to a side plate aligned with the first direction, a mating guide element attached to a tilting pusher bracket that is configured to slide on the guide element, and a locking element that locks the tilting pusher support to the side plate in a desired position along the guide element, for adjusting the tilting pusher supported on the tilting pusher support according to the size of the box to be formed.
    [0078] In said option, the four regulating device comprises two second guide elements joined at two ends of the core, one towards one side and the other towards the other side according to the first direction, both second guide elements being aligned with the second direction. It also comprises two conjugated second guide elements that fit into the respective second guide elements one by one, each second conjugated guide element being joined at its end to the core and at its other end to a side plate. Thus, the support structure has a bridge of adjustable length, according to the second direction, that joins the core and both side plates.
    [0080] Optionally, the bridge is configured so that its position along the third direction can be adjusted with respect to the side plates for the formation of boxes of different depths.
    [0082] In another option, the male comprises two tilting pushers, one located towards one side and the other towards the opposite side of the core in the first direction, where each tilting pusher comprises, at its two opposite ends that protrude from each of the four corners of said support structure, the flat surface parallel to the side plates, and the first and second edges.
    [0084] In a variant of this other option, the two opposite ends of the tilting pushers comprise a chamfer inclined with respect to the first flat surface attached to or forming an integral part in use of the respective said end of the tilting pusher configured to be coplanar to the chamfered flap.
    [0085] In an alternative option of this other option, the first and second edges of the ends of the tilting pushers that protrude from each of the four corners of said support structure are adjustable in the first direction by means of a first adjustment device and are adjustable in the second direction by means of a second regulating device.
    [0087] According to a second aspect, and to overcome the drawbacks set forth in the background of the invention, the present invention presents a box-forming machine from plates comprising a chassis and a male drive member.
    [0089] The tap actuator is supported on said chassis and provides a linearly guided alternating movement in two opposite directions to said tap for its introduction and extraction from a molding cavity forming part of a mold.
    [0091] Likewise, said machine comprises a mold supported on the chassis provided with a molding cavity defined by benders that bend parts of the plate in cooperation with the core moved by the core actuator.
    [0093] Likewise, said machine further comprises the core described in the first aspect of this invention.
    [0095] According to a third aspect, and to overcome the drawbacks set forth in the background of the invention, the present invention presents a method for the formation of boxes from flat plates that comprises the steps of:
    [0097] • moving a core according to a linearly guided alternating movement in two opposite directions by means of a core drive member, for its insertion and removal from a molding cavity that forms part of a mold;
    [0099] • bending parts of the plate by means of benders defining said molding cavity in cooperation with the core moved by the core actuator;
    [0101] • bending at each corner of the box to form a first weakened line connecting a chamfered wall with the first side wall, by means of the first edge of the male of the first aspect of the invention; and
    [0102] • bending at each corner of the box to form a second weakened line connecting the chamfered wall with a second lateral wall perpendicular to the first lateral wall, through the second edge of the male of the first aspect of the invention.
    [0104] Complementarily, this method also includes the steps of:
    [0106] • fold and glue against the flat surface different parts of the sheet that are coplanar with the first side wall of the box, and
    [0107] • before moving the tap, position each first and second edges in a desired position by manually adjusting them in a first and second direction perpendicular to the direction of movement of the tap.
    [0109] Throughout the description and claims the term "faint line" encompasses the term "cleft" and the term "cut-crease".
    [0111] The term "attached" or "connected" refers to joining or connecting, respectively, at least one element to another either directly or indirectly.
    [0113] BRIEF DESCRIPTION OF THE DRAWINGS
    [0115] To complement the description that is being made of the object of the invention and to aid in a better understanding of the characteristics that distinguish it, the present specification is accompanied, as an integral part thereof, by a set of plans, in the that for illustrative and non-limiting purposes, the following has been represented:
    [0117] Figs. 1 and 2 are top and bottom perspective views, respectively, of a first embodiment of the core of the present invention.
    [0119] Fig. 3 is a plan view of the core of Figs. 1 and 2 inside a box formed with an essentially rectangular base with chamfered walls at its corners, and in the view of which a section A-A is indicated.
    [0121] Fig. 4 is a top perspective view of Fig. 3.
    [0123] The. Figs. 5 and 6 are analogous to Figs. 3 and 4, respectively, except that the box formed has been represented with transparency lines.
    [0125] Fig. 7 is an exploded view of the plug of Figs. 1 to 6.
    [0127] Fig. 8 is a view according to section AA of the instant in which the tilting pusher is held rigid in an extended position and presses a cardboard sheet during a drawing movement in a third direction, before the formation of the fins of the box to be formed.
    [0128] Fig. 9 is a view according to section A-A of the instant in which the core is inside the box, after the formation of the fins of the box to be formed.
    [0130] Fig. 10 is a view according to section A-A of the instant in which each rocker pusher of the male pivots to a retracted position to overcome a flap of the box during an extraction movement according to the third direction opposite to the drawing movement.
    [0132] Fig. 11 is a view according to section A-A of the instant in which the rocker pushers go into their extended position when the tap leaves the interior of the formed box.
    [0134] Fig. 12 is a top perspective view of some elements of a mold of a box forming machine, where a clamping blade fixed to a rotating shaft that bends and sticks some fins of the box is observed when the box has the male inside.
    [0136] Fig. 13 is a top perspective view of a second embodiment of the core of the present invention.
    [0138] Fig. 14 is a top perspective view of a third embodiment of the core of the present invention.
    [0140] Fig. 15 is a top perspective view of a fourth embodiment of the core of the present invention.
    [0142] Fig. 16 is a top perspective view of a fifth embodiment of the core of the present invention.
    [0144] Fig. 17 is a sectional side view of the box forming machine of the present invention, where a core is schematically represented.
    [0146] Figs. 18 and 19 are top and side perspective views, respectively, of the tap actuator that provides movement to the tap, which has been schematically represented.
    [0148] DETAILED EXHIBITION OF MODES OF REALIZATION / EXAMPLES
    [0150] According to a first aspect of the invention, Figs. 1 to 12 show a first embodiment of the core (1) for a box-forming machine from plates.
    [0151] The male (1) comprises a support structure (2) provided with a core (3), and two side plates (20) parallel to a first direction (X) and indirectly attached to two opposite ends of said core (3).
    [0153] The male (1) is attached through the core (3) to a male actuating member that provides an alternating movement of two opposite directions of said male (1) for its introduction and extraction from a molding cavity that is part of a mold conjugated to the male (1).
    [0155] The male (1) further comprises four tilting pushers (4), two located towards one side and two others towards the opposite side of the core (3) according to a second direction (Y), each one mounted to rotate individually about a respective axis of tilting (5) parallel to a second direction (Y) perpendicular to the first direction (X). The tilting axes (5) are perpendicular to the side walls (20).
    [0157] Following in said embodiments, the male (1) includes four rotation limiters (6) associated with each rocker pusher (4), one by one. Each rotation limiter (6) is embodied in a tightening screw threaded in two tilting shaft supports (24), fixed in use to each side plate (20). Said rotation limiter (6) is configured to regulate the inclination of the tilting pushers (4) in their extended position.
    [0159] Each twist limiter (6) cooperates with the tilt axis (5) to rigidly hold the rocker pusher (4) in an extended position where the rocker pusher (6) is configured to press the base (90) of a plate. cardboard during a drawing movement according to a third direction (Z) perpendicular to the first and second directions (X, Y). Also, each rotation limiter (6) and said tilting axis (5) of each tilting pusher (4) allows its respective tilting pusher (4) to be pivoted to a retracted position to overcome a fin (86) of the box (80) during an extraction movement of the core (1) in the third direction (Z) in the opposite direction to the drawing movement. In Figs. 1 to 6 are shown in detail that, in the male (1), the ends of the tilting pushers (4) protrude from each of the four corners of said support structure (1), and each end of the tilting pushers ( 4) comprises a first flat surface (7) parallel to the side plates (20) configured to be in use coplanar to a first side wall (81) of the box (80).
    [0160] Following in Figs. 1 to 6, each end of the tilting pushers (4) protruding from each of the four corners of said support structure (2) corresponding to a corner of the box (80) to be formed also comprises a first edge (9) essentially aligned with the third direction (Z) and coplanar to the plane of the first plane surface (7), and a second edge (10) essentially aligned with the third direction (Z) and configured to be in use coplanar to a second side wall (82) of the box (80) perpendicular to the first side wall (81).
    [0161] In Figs. 1 to 6, said first and second edges (9, 10) are configured to form a chamfered wall (83) that connects the first side wall (81) with the second side wall (82) in this corner of the box (80) , so that the first edge (9) bends a first weakened line (84) that connects the chamfered wall (83) with the first side wall (81), and the second edge (10) bends the second weakened line (85) connecting the chamfered wall (83) with the second side wall (82).
    [0163] In this way, the male (1) is configured to form boxes (80) with an essentially rectangular base (90) with chamfered walls (83) at their corners, as shown in Figs. 3 to 6. Said box (80) comprises four side walls, two first side walls (81) facing each other, and two second side walls (82) facing each other and the first side walls (81) perpendicular. Likewise, the box (80) comprises four chamfered walls (83), positioned at the four corners of the box (80), one by one.
    [0165] At each end of the tilting pushers (4) that protrude from each of the four corners of said support structure (1), the first flat surface (7) is configured to act as a stop against the bending and gluing of different parts of the plate that are coplanar with the first side wall (81) of the box (80). In Figs. 3 to 6 it is shown that the parts of the plate that are coplanar with each first side wall (81) are two flaps (88) that are glued on the inside of each first side wall (81) and two ear flaps (87) that they are glued on the outside of the first side wall (81).
    [0167] In Figs. 8 to 11, the tilting pushers (4), the tilting shafts (5), the rotation limiters (6) that cooperate with the tilting shaft (5), and the support structure (2) are configured to form boxes ( 80) with an essentially rectangular base (90) with chamfered walls (83) at its corners with the tilting pushers (4) in an extended position in contact with the base (90) of the box (80) formed from the drawing movement in the direction (Z) until the different parts of the plate have been joined by folding and gluing forming the box (80). In Fig. 11 the box (80) is formed.
    [0169] In this first embodiment of the male (1), Figs. 1, 2 and 7 show that the respective first and second edges (9, 10) of the ends of the tilting pushers (4) that protrude from each of the four corners of said support structure (2) are adjustable according to the first direction (X) and the second direction (Y), to position the respective first and second edges (9, 10) in a desired position keeping the position of the respective tilting axes (5) fixed with respect to the support structure (2) .
    [0171] This regulation of said first and second edges (9, 10) keeping the position of the respective tilting axes (5) fixed with respect to the support structure (2) allows the formation of boxes with chamfered walls (83) of different sizes and positions at the corners of the box (80) of FIG. 4, with an essentially rectangular base (90) with chamfered walls (83) at its corners.
    [0173] In Figs. 1, 2 and 7, the respective first and second edges (9, 10) of the ends of the tilting pushers (4) that protrude from each of the four corners of said support structure (2) are adjustable in the first direction (X) by means of a first regulation device and they are adjustable in the second direction (Y) by a second regulation device, each respective regulation in the first direction (X) being independent of each respective regulation in the second direction (Y).
    [0175] In Figs. 1, 2 and 7 to 11, it is shown that said first regulation device comprises two first guide elements (11) materialized in two elongated holes aligned with the first direction (X), and two first blocking elements (12) materialized in respective screws that lock the position of the first edge (9) with respect to the tilting axis (5) of the rocker pusher (4) along the first direction (X) to regulate the position of the first edge (9) in a desired position along the first direction (X).
    [0177] Following in Figs. 1, 2 and 7 to 11, said second adjustment device comprises two second guide elements (13) materialized in two second elongated holes aligned with the second direction (Y), and two second blocking elements (14) materialized in respective screws that lock the position of the second edge (10) with respect to the tilting axis (5) of the tilting pusher (4) along the second direction (Y) to adjust the position of the second edge (10) to a desired position along the second direction (Y).
    [0179] In Figs. 1, 2 and 7, the male (1) further comprises a first and a second end member (15, 16) fixed in use, respectively, by the first two and the two second blocking elements (12, 14) in each of the ends of the tilting pusher (4) that protrudes from each of the four corners of said support structure (1).
    [0181] The first end member (15) of each of the four tilting pushers (4) is provided with the first flat surface (7), which is delimited on one side by the first edge (9).
    [0183] The second end member (16) of each of the four tilting pushers (4) is provided with a second flat surface (8) perpendicular to the side plates (4), which is delimited on one side by the second edge (10 ).
    [0185] Thus, each said end of the tilting pusher (4) is configured to position the first edge (9) according to a first direction (X) in a desired position, and to position the second edge (10) according to a second direction (Y) in a desired position.
    [0187] In Figs. 1, 2 and 7 it is shown in detail that the male (1) also comprises four elastic elements (30), materialized in helical springs equipped with a distal end and a proximal end, where each proximal end is connected to the support structure (2), and each distal end is connected to a respective rocker pusher (4).
    [0189] A function of the elastic elements (30) is shown in Figs. 8 to 11, where it is illustrated that they serve to keep the tilting pushers (4) in their extended position during the drawing movement (Fig. 8) and before the plate from which the box (80) is obtained contact the rocker arms (4). In Fig. 11 the core (1) is prepared to form a subsequent plate.
    [0191] In this first claim, Figs. 1 to 7 show that at each of the ends of the tilting pushers (4) lack a chamfered face with respect to the first flat surface (7) joined or forming an integral part in use of the respective said end of the tilting pusher (4) set up to stay coplanar to the chamfered wall (83). Likewise, the tilting pushers (4) are arms with an inverted L shape.
    [0193] In Figs. 1 to 7 the male (1) comprises a third adjustment device associated with each of the four tilting pushers (4) to regulate the distance of the tilting pushers (4) in the first direction (X) with respect to the support structure ( 2), and a four adjustment device to regulate the distance between the tilting pushers (4) in the second direction (Y) with respect to the support structure (2).
    [0195] In Figs. 1, 2 and 7 each side plate (20) has associated two third regulation devices. Each third regulating device comprises a guide element (21) attached to a side plate (20) aligned with the first direction (X), embodied in a slot made in the side plate (20). Likewise, it comprises a conjugated guide element (22) attached to a tilting pusher support (24) that is configured to slide in the guide element (21). The tilting tappet support (24) is embodied in a machined part with an inverted U shape where the rotation limiter (6), the tilting axis (5) and the tilting pushers (4) are supported.
    [0197] Each third regulating device also comprises a locking element (23) embodied in a clamping screw that locks a tilting pusher bracket (24) to the side plate (20) in a desired position along the guide element (21) . Thus, the regulation of the tilting pusher (4) together with its tilting axis (5) supported on the tilting pusher support (24) is obtained according to the size of the box to be formed.
    [0199] In Figs. 1, 2 and 7 it can be seen that the four regulation device comprises two second guide elements (25) joined at two ends of the core (3), one towards one side and the other towards the other side according to the first direction (X), both second guide elements (25) being aligned with the second direction (Y). The second guide elements (25) are embodied in respective recesses made in the core (3).
    [0201] The four regulation device also comprises four conjugated second guide elements (26) embodied in respective transverse plates that fit into the respective two second guide elements (25), two by two, each pair of second conjugated guide elements (26 ) joined at their end to the core (3) and at its other end to a side plate (20) by means of a plurality of screws (32) shown in Fig. 7.
    [0203] Thus, the support structure (2) has a bridge (27) of adjustable length, according to the second direction (Y), which joins the core (3) and both side plates (20).
    [0205] In Figs. 1,2 and 7, the bridge (27) is configured so that its position along the third direction (Z) can be adjusted with respect to the side plates (20) for the formation of boxes (80) of different depths.
    [0207] Following in Figs. 1, 2 and 7, the male (1) has two pieces equipped with dovetails (33) each, joined to the core (3), in which two respective flanges (34) fit that are fixed in use to the side walls (20), one by one. Second clamping screws (35) fix the flanges (34) to the side walls (20) so that to adjust the male depth (1) in the third direction (Z), the second clamping screws (35) are released , the side plates (20) are slid along the flanges (34) along the dovetails (33) to a desired position, and the second clamping screws (35) are retightened. Thus, the core (3) is adjustable with respect to the side walls (20) and the tilting pushers (4) supported on the side walls (20).
    [0209] In Figs. 1 to 7 it is observed that the ends of the tilting pushers (4) protrude from each of the four corners of said support structure (1), they have in an area located between the ends of the tilting pushers (4) of the same side, hollow central areas configured not to interfere with other elements in the forming machine during the formation of the box.
    [0211] According to the second, third, fourth and fifth embodiments of Figs. 13 to 16, the male (1) comprises a support structure (2) provided with a core (3), and two side plates (20) parallel to a first direction (X) and directly or indirectly attached to two opposite ends of said core (3).
    [0213] In said embodiments, the male (1) is indirectly or indirectly attached through the core (3) to a male actuating member that provides an alternating movement of two opposite directions of said male (1) for its introduction and extraction of a molding cavity that is part of a mold conjugated with the male (1).
    [0214] In said embodiments, the male (1) comprises two rocker pushers (4), one located towards one side and the other towards the opposite side of the core (3) according to a second direction (Y), each one mounted to pivot on a respective axis tilt (5) parallel to a second direction (Y) perpendicular to the first direction (X). The tilting axes (5) are perpendicular to the side walls (20).
    [0216] Following in said embodiments, the male (1) includes four rotation limiters (6), two associated with each rocker pusher (4). Each rotation limiter (6) is embodied in a tightening screw threaded in two pivot shaft supports (24), one fixed in use to each side plate (20). Said rotation limiter (6) is configured to regulate the inclination of the tilting pushers (4) in their extended position. Each tilting pusher (4) cooperates with a tilting axis (5) to hold the tilting pusher (4) rigid in an extended position where the tilting pusher (6) is configured to press the base (90) of a cardboard sheet during a drawing movement according to a third direction (Z) perpendicular to the first and second directions (X, Y) and allowing its respective rocker pusher (4) to pivot to a retracted position to overcome a fin of the box during a movement of extraction according to the third direction (Z) opposite to the drawing movement.
    [0218] In said embodiments, the ends of the tilting pushers (4) protrude from each of the four corners of said support structure (2), and each end of the tilting pushers (4) comprises a first flat surface (7) parallel to the side plates (20) configured to be in use coplanar to a first side wall (81) of the box (80).
    [0220] In said embodiments, each end of the tilting pushers (4) that protrudes from each of the four corners of said support structure (2) corresponding to a corner of the box (80) to be formed further comprises a first edge (9) essentially aligned with the third direction (Z) and coplanar to the plane of the first planar surface (7), and a second edge (10) essentially aligned with the third direction (Z). The second edge (10) is configured to be in use coplanar to a second side wall (82) of the box (80) perpendicular to the first side wall (81).
    [0222] In said embodiments, said first and second edges (9, 10) are configured to form a chamfered wall (83) that connects the first side wall (81) with the second side wall (82) at this corner of the box (80) , so that the first edge (9) bends a first weakened line (84) that connects the chamfered wall (83) with the first side wall (81), and the second edge (10) bends the second weakened line (85) that connects the chamfered wall ( 83) with the second side wall (82). Refer to box (80) in Fig. 4 for a better understanding.
    [0224] In this way, the core (1) is configured to form essentially rectangular base boxes (90) with chamfered walls (83) at their corners.
    [0226] In the second embodiment of Fig. 13, the two opposite ends of each tilting pusher (4) comprise a chamfer (31) inclined with respect to the first flat surface (7) that forms an integral part in use of the respective said end of the tilting pusher (4) configured to be coplanar to the chamfered wall (83).
    [0228] In the third embodiment of Fig. 14, at each of the ends of the rocker pushers (4) lack a chamfered face with respect to the first flat surface (7), it is an integral part in use of the respective said end of the rocker pusher ( 4) configured to be coplanar to the chamfered wall (83).
    [0230] In Fig. 14, the second edge (10) is a substantially sharp edge that is not an integral part of a second flat surface (8) configured to be in coplanar use with a second side wall (82) of the box (80) parallel to the tilting axes (5).
    [0232] In the fourth embodiment of Fig. 15, at each of the ends of the tilting pushers (4) lacking a chamfered face with respect to the first flat surface (7), it is an integral part in use of the respective said end of the tilting pusher ( 4) configured to be coplanar to the chamfered wall (83).
    [0234] In Fig. 15, the second edge (10) forms an integral part of a second flat surface (8) configured to be in coplanar use with a second side wall (82) of the box (80) parallel to the tilting axes ( 5).
    [0236] The fifth embodiment of Fig. 16 further comprises a first and a second end member (15, 16) fixed in use, respectively, by the first and second locking element (12, 14) at each of the ends of the rocker pusher ( 4) that protrudes from each of the four corners of said support structure (1).
    [0237] In Fig. 16, the first end member (15) is provided with the first flat surface (7), which is delimited on one side by the first edge (9).
    [0239] In Fig. 16, the second end member (16) is provided with a second flat surface (8) perpendicular to the side plates (4), which is delimited on one side by the second edge (10).
    [0241] Each said end of the tilting pusher (4) of Fig. 16 is configured to position the first edge (9) according to a first direction (X) in a desired position, and to position the second edge (10) according to a second direction (Y ) in a desired position.
    [0243] Thus, the tilting pushers (4) that protrude from each of the four corners of said support structure (2) are adjustable in the first direction (X) by means of a first adjustment device and are adjustable in the second direction (Y) by means of a second regulating device.
    [0245] According to a second aspect, Figs. 17 to 19 a machine (100) forming boxes (80) from plates is shown comprising a chassis (101), and a male actuator (102).
    [0247] The male actuating member (102) is supported on said chassis (101) and provides a linearly guided alternating movement in two opposite directions to said male (1) for its introduction and extraction from a molding cavity (103) that forms part of a mold (102).
    [0249] In Figs. 12, and 17 to 19 it is shown that said machine (100) comprises a mold (104) supported on the chassis (101) provided with a molding cavity (103) defined by benders that bend parts of the plate in cooperation with the male (1) moved by the male actuator (102).
    [0251] In Fig. 12 the mold (104) is shown where two mutually parallel bridges (105) (107) define a molding cavity (103). Also shown are two rotary shafts (106) parallel to each other and to bridges (105). Each rotary shaft (106) has attached a clamping blade (107) that bends and sticks fins (86) of the box (80) that the male (1) surpasses during its extraction from the mold (104). Other conventional benders that are part of the state of the art are not shown in the figure.
    [0253] Likewise, said machine further comprises the male (1) described in the first aspect of this invention.
    [0254] According to a third aspect, and to overcome the drawbacks stated in the background of the invention, the present invention presents a method for the formation of boxes from flat plates.
    [0256] In Figs. 8 to 12 shows the step of moving a male (1) according to an alternating movement guided linearly in two opposite directions according to the third direction (Z) by means of a male actuating member (102), for its introduction and extraction from a cavity of molding (103) that is part of a mold (104).
    [0258] The method further comprises the step of bending parts of the plate by means of benders defining said molding cavity (103) in cooperation with the core (1) moved by the core actuating member (102). Fig. 12 shows this step.
    [0260] In Figs. 3 to 6 shows in detail the steps of bending in each corner of the box (80) to form a first weakened line (84) that connects a chamfered wall (83) with the first side wall (81), through the first edge (9) of the male (1) of the first aspect of the invention; and
    [0262] Again, in Figs. 3 to 6 shows the step of bending at each corner of the box (80) to form a second weakened line (85) that connects the chamfered wall (83) with a second side wall (82) perpendicular to the first side wall ( 81), by means of the second edge (10) of the male (1) of the first aspect of the invention.
    [0263] In Figs. 4, 6 and 12 it is shown that different parts of the plate that remain coplanar with the first side wall (81) of the box (80) have been folded and glued against the flat surface (7).
    [0265] Before moving the male (1), in Figs. 1 and 2 each first and second edges (9, 10) are positioned in a desired position by manually adjusting them in a first and second direction (X, Y) perpendicular. to the direction of movement of the male (1), as explained in detail in the first aspect of the invention.
    权利要求:
    Claims (19)
    [1]
    1. Male (1) for a box forming machine, comprising:
    • a support structure (2) provided with a core (3), and two side plates (20) parallel to a first direction (X) and attached to two opposite ends of said core (3);
    • at least two tilting pushers (4), one located towards one side and the other towards the opposite side of the core (3) according to a second direction (Y), each one mounted to pivot on a respective tilting axis (5) parallel to a second direction (Y) perpendicular to the first direction (X)
    • at least one rotation limiter (6) associated with each tilting pusher (4), which cooperates with the respective tilting axis (5), to keep the respective tilting pusher (4) rigid in an extended position where the tilting pusher (6) is configured to press the base (90) of a cardboard sheet during a drawing movement according to a third direction (Z) perpendicular to the first and second directions (X, Y) and allowing its respective rocker pusher ( 4) to a retracted position to overcome a flap or flange of the box (80) during an extraction movement according to the third direction (Z) in the opposite direction to the drawing movement;
    and wherein the ends of the tilting pushers (4) protrude from each of the four corners of said support structure (1), and each end of the tilting pushers (4) comprises a first flat surface (7) parallel to the side plates (20) configured to be in use coplanar to a first side wall (81) of the box (80);
    characterized in that each end of the tilting pushers (4) that protrudes from each of the four corners of said support structure (2) corresponding to a corner of the box (80) to be formed further comprises:
    a first edge (9) essentially aligned with the third direction (Z) and coplanar to the plane of the first planar surface (7), and
    a second edge (10) essentially aligned with the third direction (Z) and configured to be in use coplanar to a second side wall (82) of the box (80) perpendicular to the first side wall (81);
    wherein said first and second edges (9, 10) are configured to form a chamfered wall (83) that connects the first side wall (81) with the second wall side (82) in this corner of the box (80), so that the first edge (9) bends a first weakened line (84) that connects the chamfered wall (83) with the first side wall (81), and the Second edge (10) bends the second line of weakness (85) connecting the chamfered wall (83) with the second side wall (82), to form essentially rectangular base boxes (90) with chamfered walls (83) at their corners.
    [2]
    2. Male (1) according to claim 1, wherein at each end of the tilting pushers (4) protruding from each of the four corners of said support structure (2) the first flat surface (7) is configured to act as a stop wall before the bending and gluing of different parts of the plate that are coplanar with the first side wall (81) of the box (80).
    [3]
    3. Male (1) according to claim 1 or 2, wherein the tilting pushers (4), the tilting shafts (5), the rotation limiters (6) cooperating with the tilting shafts (5), and the Support structure (2) are configured to form boxes (80) with an essentially rectangular base (90) with chamfered walls (83) at their corners with the tilting pushers (4) in an extended position in contact with the base (90) of the box (80) formed from the drawing movement according to the direction (Z) until the different parts of the plate have been joined by folding and gluing forming the box (80).
    [4]
    4. Male (1) according to any of claims 1 to 3, wherein the respective first and second edges (9, 10) of the ends of the rocker pushers (4) that protrude from each of the four corners of said structure support (2) are adjustable according to the first direction (X) and the second direction (Y), to position the respective first and second edges (9, 10) in a desired position while maintaining the position of the respective tilting axes (5 ) fixed with respect to the support structure (2).
    [5]
    5. Male (1) according to any of claims 1 to 4, wherein the respective first and second edges (9, 10) of the ends of the rocker pushers (4) that protrude from each of the four corners of said structure of support (2) are adjustable in the first direction (X) by means of a first regulation device and are adjustable in the second direction (Y) by means of a second regulation device, each respective regulation in the first direction (X) being independent of each respective regulation in the second direction (Y).
    [6]
    6. Male (1) according to claim 5, wherein said first regulating device comprises at least a first guide element (11) aligned with the first direction (X), and a first blocking element (12) that blocks the position of the first edge (9) with respect to the tilting axis (5) of the rocker pusher (4) along the first direction (X) to regulate the position of the first edge (9) in a desired position along the first direction (X); and said second adjustment device comprises at least one second guide element (13) aligned with the second direction (Y), and a second blocking element (14) that blocks the position of the second edge (10) with respect to the pivot axis ( 5) of the rocker pusher (4) along the second direction (Y) to regulate the position of the second edge (10) in a desired position along the second direction (Y).
    [7]
    A male (1) according to claim 6, further comprising a first and a second end member (15, 16) fixed in use, respectively, by the first and second blocking element (12, 14) at each of the ends of the tilting pusher (4) that protrudes from each of the four corners of said support structure (1), and where the first end member (15) is provided with the first flat surface (7), which is delimited in one side by the first edge (9), and wherein the second end member (16) is provided with a second flat surface (8) perpendicular to the side plates (4), which is delimited on one side by the second edge (10), each said end of the tilting pusher (4) being configured to position the first edge (9) according to a first direction (X) in a desired position, and to position the second edge (10) according to a second direction (Y) in a desired position.
    [8]
    8. Male (1) according to any of claims 3 to 7, further comprising at least two elastic elements (30) provided with a distal end and a proximal end, wherein each proximal end is connected to the support structure (2), and each distal end is connected to a respective rocker pusher (4), to keep the rocker pushers (4) in their extended position during the drawing movement and before the plate from which the box (80) is obtained contact the rocker arms (4).
    [9]
    Male (1) according to claim 7 or 8, wherein at each end of the tilting pushers (4) they lack a chamfered face with respect to the first flat surface (7) joined or forming an integral part in use of the respective said end of the tilting pusher (4) configured to be coplanar to the chamfered wall (83).
    [10]
    10. Male (1) according to any of the preceding claims, comprising four tilting pushers (4), two towards one side and two others towards the opposite side of the core (3) according to the first direction (X), each one mounted to rotate individually about a respective tilting axis (5) perpendicular to the side plates (20).
    [11]
    Male (1) according to claim 10, comprising a third regulation device associated with each of the four rocker pushers (4) to regulate the distance of the rocker pushers (4) in the first direction (X) with respect to the support structure (2), and a four adjustment device to regulate the distance between the tilting pushers (4) in the second direction (Y) with respect to the support structure (2).
    [12]
    12. Male (1) according to claim 11, wherein each side plate (20) has associated two third regulation devices, each third regulation device comprising:
    • a guide element (21) attached to a side plate (20) aligned with the first direction (X),
    • a mating guide element (22) attached to a rocker pusher bracket (24) that is configured to slide on the guide element (21), and
    • a locking element (23) that locks a rocker pusher bracket (24) to the side plate (20) in a desired position along the guide element (21),
    for adjusting the tilting pusher (4) supported on the tilting pusher support (24) according to the size of the box to be formed;
    and wherein the four regulation device comprises:
    • two second guide elements (25) joined at two ends of the core (3), one towards one side and the other towards the other side according to the first direction (X), both second guide elements (25) being aligned with the second direction (Y), and • two conjugated second guide elements (26) that fit into the respective second guide elements (25), one by one, each second conjugated guide element (26) being joined at its end to the core ( 3) and at its other end to a side plate (20)
    so that the support structure (2) has a bridge (27) of adjustable length, according to the second direction (Y), which joins the core (3) and both side plates (20).
    [13]
    Male (1) according to claim 12, wherein the bridge (27) is configured so that its position along the third direction (Z) can be adjusted with respect to the side plates (20) for the formation of boxes (80) of different depth.
    [14]
    14. Male (1) according to any of claims 1 to 8, comprising two tilting pushers (4), one located towards one side and the other towards the opposite side of the core (3) in the first direction (X), where Each tilting pusher (4) comprises, at its two opposite ends that protrude from each of the four corners of said support structure (1), the flat surface (7) parallel to the side plates (20), and the first and second edges (9, 10).
    [15]
    15. Male (1) according to claim 14, wherein the two opposite ends of each tilting pusher (4) comprise a chamfer (31) inclined with respect to the first flat surface (7) joined or forming an integral part in use of the respective said end of the tilting pusher (4) configured to be coplanar to the chamfered wall (83).
    [16]
    16. Male (1) according to claim 14, wherein the first and second edges (9, 10) of the ends of the tilting pushers (4) that protrude from each of the four corners of said support structure (2) they are adjustable in the first direction (X) by means of a first adjustment device and they are adjustable in the second direction (Y) by means of a second adjustment device.
    [17]
    17. Machine (100) forming boxes (80) from plates comprising
    • a chassis (101);
    • a male actuating member (102), supported on said chassis (101), which provides a linearly guided alternating movement of two opposite directions to said male (1) for its introduction and extraction from a molding cavity (103) that forms part of a mold (102);
    • a mold (104) supported on the chassis (101) provided with a molding cavity (103) defined by benders that bend parts of the plate in cooperation with the core (1) moved by the male drive member (102 );
    characterized in that it further comprises the male (1) according to any of claims 1 to 16.
    [18]
    18. Method for the formation of boxes (80) comprising the steps of
    • move a male (1) according to a linearly guided alternating movement of two opposite directions by means of a male actuating member (102), for its introduction and extraction from a molding cavity (103) that is part of a mold (104);
    • bending parts of the plate by means of benders defining said molding cavity (103) in cooperation with the core (1) moved by the core drive member (102);
    characterized in that it comprises the steps of
    • bend at each corner of the box (80) to form a first weakened line (84) that connects a chamfered wall (83) with the first side wall (81), through the first edge (9) of the male (1) according to any of claims 1 to 16; and
    • bends at each corner of the box (80) to form a second weakened line (85) that connects the chamfered wall (83) with a second side wall (82) perpendicular to the first side wall (81), through the second edge (10) of the male according to any one of claims 1 to 16.
    [19]
    19. The method of claim 18, further comprising the steps of:
    • fold and glue against the flat surface (7) different parts of the plate that are coplanar with the first side wall (81) of the box (80), and
    • before moving the tap (1), position each first and second edges (9, 10) in a desired position by manually adjusting them in a first and second direction (X, Y) perpendicular to the direction of movement of the tap (1).
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20070037682A1|2005-08-10|2007-02-15|Scholtes William J|Tray erector|
    US20080032878A1|2006-06-08|2008-02-07|Raymond George Montague Kisch|Smart mandrel for container forming machines|
    ES2318971A1|2006-06-23|2009-05-01|Telesforo Gonzalez Olmos|Push head for a cardboard box forming machine|
    US20140113787A1|2012-10-19|2014-04-24|Rock-Tenn Shared Services, Llc|Container forming apparatus and method|
    ES2593823A1|2015-06-08|2016-12-13|Telesforo Gonzalez Maquinaria Slu|Machine for forming bases or caps of prismatic boxes by bending and joining of die-cut plates |
    ES2605994A1|2015-09-16|2017-03-17|Telesforo Gonzalez Maquinaria Slu|Machine for forming machine of octogonal prismatic trays |
    ES1149136U|2015-11-20|2016-01-19|Boix Maquinaria, S.L.|Device for configuring carton boxes |
    ES2655317A1|2016-08-09|2018-02-19|Telesforo González Maquinaria, Sl|Method and machine for automatic production of a prismatic box by bending and joining of a flat piece of base, and obtained prismatic box |
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    ES201930499A|ES2798000B2|2019-06-04|2019-06-04|MALE FOR BOX FORMING MACHINE, AND MACHINE AND METHOD FOR BOX FORMING|ES201930499A| ES2798000B2|2019-06-04|2019-06-04|MALE FOR BOX FORMING MACHINE, AND MACHINE AND METHOD FOR BOX FORMING|
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