• 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:
    1419313 Foundry moulding machines; flasks PETTIBONE CORP 25 Jan 1973 [10 March 1972] 3877/73 Heading B3F A foundry moulding machine for the manufacture of "flaskless" sand moulds comprising cope and drag parts has a framework defining a working station WS and a stripping station S5. At the working station WS is mounted a matchplate 22 on a support 150. A flask carrier 16 supports a cope flask 18 spaced above the matchplate 22 and a drag flask 20 spaced below the matchplate 22. In operation, a ram 34 raises a base member 262 (Fig. 17) to lift the drag and cope flasks 18, 20 and the matchplate 22 from their respective supports against a press/filling head 35 so as to define moulding chambers upon each side of the matchplate. Sand is blown into the so-defined chambers through ports 350, 352. A sprue pattern 354 is mounted on a plate 280 on the head 35. The sand mould parts are then compressed by forcing a base plate 252 up into the drag mould cavity and by releasing fluid from flask retainers 288 to allow the head plate 280 to enter the cope mould cavity. To draw the matchplate 22, the base plate 252 and the base member 262 are lowered leaving the cope flask 18 and drag flask 20 with their respective mould parts cm, dm on the rotating support 16. The support is rotated through 90 degrees by means of a Geneva mechanism (not shown) to a coreplacing station (CS, not shown) where a core 360 (Fig. 28) is inserted in the drag mould part dm by hand. A further 90 degrees rotation of the carrier 16 bring both flasks 16, 18 into the stripping station SS. A base-board 24 is supplied laterally to a lifting table 308 by an automatic dispensing device (Fig. 33, not shown) and the table 308 is raised to compress the cope and drag moulds cm and dm against a reaction plate 26 to mate them, after which, the flask parts 18, 20 are stripped from the completed mould by auxiliary pistons 316. The table 308 is lowered returning the flask parts 18, 20 to the rotary carrier 16 and the completed mould is pushed out of the machine sideways when clear of the flask parts 18, 20. Guiding flasks.-The cope flasks 18 are provided with bushes (Fig. 8) for engagement with locating dowels 202 (Fig. 2) on the cope flask supports 80, and sprung pins 98 for engagement with the matchplate 22 and to facilitate stripping of the flasks 18 and their contained cope-moulds cm from the matchplate 22. In addition, the cope flasks 18, have bushes 104, 105 for receiving locating pins 118 mounted on the drag flasks 20 for cope/drag registration. Pins 158 on the match plate 22 engage with bushes 126 on the drag flasks 20 for location thereto. The matchplate 22 also has bushes 148 for engagement with dowels 150 on its support 152 (Fig. 2). The bushes 126 on the drag flasks 20 also locate the drag flasks 20 with respect to their carriers by means of dowels 202<SP>1</SP>. Sand is preferably blown into the flasks which are vented. The drag flasks 20 have sand inlets 108 in the lower side parts.
    公开号:SU818468A3
    申请号:SU731894756
    申请日:1973-03-09
    公开日:1981-03-30
    发明作者:Самуель Лунд Роберт；Джон Косс Вернон
    申请人:Петтибоун Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to casting production and, in particular, to molding machines designed to simultaneously produce the upper and lower parts of the sand mold and then assemble them so that they are ready for the operation of casting metal at the time of leaving the machine. . In these machines, double-sided model plies were used, and all machine operations were carried out at the same working position at which various movements of the flasks and the model plate were carried out together with parallel movements under the action. eat plunger. The known molding machine for the manufacture of bezopochny casting molds, comprising a base, a carrier mounted thereon, with supports for the upper and lower flasks, one above another of the press molding drive plates, between which the double-sided plate bracket is mounted, a hopper for the molding mixture , two sandblasting heads and means for extracting half-shapes and assembling them 1. A known machine has a low drag. In addition, it is difficult to install rods. The purpose of the invention is to increase the productivity of the machine and to improve the conditions for inserting the rods. To do this, in the proposed version, the carrier means is made in the form of a space located coaxially above each other at a fixed distance of crosses with a rotational drive relative to the vertical column, and the dough is fixed on the crosses in pairs with the number of positions. The drive of the crosses is made in the form of a Maltese mechanism with a horizontal lever, one end of which is fixed on the output shaft of the mechanism, and on the other is mounted a vertical drive pin interacting with the bottom crosspiece. FIG. 1 shows the proposed machine, top view (the machine is shown without glasses, but their location is shown by a dotted line); in fig. 2 - the same, side view; in fig. 3 - the same, end view; in fig. 4 shows a Geneva-type drive mechanism, an incomplete view} in FIG. 5 - one of the types of upper flasks, which are used as two ends of the machine, end view; Fig. 6 is a model plate of the machine in the working position, end view J in Fig. 7, one of the types of lower flasks that are other parts of the machine; view from Fig. 8 is the assembled upper and lower flasks shown in Fig. 5 and 7, side view; in fig. 9 - the same, top view; in fig. 10 is a section A-A in FIG. 2 (some parts omitted for clarity); FIG. 11 is the same, side view; FIG. 12 is a section BB in FIG. 2; in fig. 13 - the same, side view; Fig. 14 is an enlarged sectional view taken from the central part of the screen; Fig. 15 is a screen filter, a perspective view (Fig. 16-26) - successive stages of moving various shaping devices or children in the working position, vertical sections and in the center of the working position of the machine; Fig. 27 shows the position for mounting the rods in the lower part of the form, vertical section; FIGS. 28-35 are positions on the release of the finished forms, which show successive stages of installation of devices or parts manipulating with the chamber at a specified position, vertical sections of the relative position on the release of ready-made forms; Fig. 36 shows the structure shown in Fig. 35, side view; Fig. 37 is a side view of the unloading mechanism, which is another part of the machine; Fig, 38 - the same, top view.
    The machine is installed on the site of the 1st workshop and includes a frame 2, the latter forms a series of four squarely arranged positions, including the main working position, the position for the installation of rods, the removal position of the flasks and the idle position. The four positions are located at an angle of 90 ° to the friend around the central vertical axis 3 of a periodically rotating disk 4 having devices for free holding four. pairs of flasks 5, each pair consisting of upper 6 and lower 7 flasks {fig. 1 and 2), the turning disk 4 is rotated by 90 at each turn, and the pairs of flasks located in the area of each position are moved together to the next hundredth position in the direction of rotation of the disk, clockwise,
    During each operation of rotating a pair of empty flasks 6 and 7, they move from idle positions to the main working position, in which under the action of the automatically actuating mechanism 8, the flasks are pressed against the washbasin 9 and then simultaneously filled with molding sand with the help of an air supply, which pre-compresses molding
    the mixture in the cavities of the mold 10. Then the molding mixture is still compressed relative to the model 11 located on the plate 9, using the pressing operation, then the flasks with the compacted molding mixture are discharged from the model plate 9 during the operation of freeing the model them to move to the installation position of the rods. In this case, the model plate 9 with the model attached to it remains in a normal position in the working position.
    No automatic operations are performed on the rod installation position, and two flasks 6 and 7 filled with molding sand are on the turntable 4 during manual installation into the lower flask 7 of the rod (Fig. 25). the divided flasks 6 and 7 with compacted molding sand are again affected by automatically triggered apparatus. In this case, the bottom plate 12, which is below the two parts of the mold, is moved upwards, tightly (pressing the flask towards each other, followed by mating the mold parts to obtain a ready-made mold consisting of compacted molding sand and pressed into the mold). to the base plate 13 so that with further upward movement; the closed flasks of the latter are released from the finished form held on the plate 14. After this operation, the ready form on the bottom plate is moved down to the position for unloading, which is in At positions, while empty flasks 6 and 7 return to normal positions, waiting for movement to idle position during the next rotation operation of disc 4,
    The automatic operations for releasing the finished form are in accordance with the operations that are carried out with the feeding of the bottom plate 13 and with the aid of the unloading mechanism 15. The mechanism 15 operates during certain periods of the cycle for feeding one bottom plate 14 (Fig; 2) from the accumulator ( FIG. 35) to the position at the removal position of the flasks for the time required to rotate the disk 4 to move the pair of molding sandboxes b and 7 to the position, and also to remove the retained form 10 on the bottom plate 14 from the position dp removal of flasks during the next operation of turning the disk 4 and moving it to the unloading area.
    The successive operations of turning the disc, which occur four times during each cycle of the machine, are carried out using a mechanism of type Geneva, which is driven by a hydraulic actuator type 17 of Geneva. The operations performed at the main working position are carried out with the help of a hydraulically actuated plunger device 18, which interacts with the upper support part 19 (Fig. 2, 16-26). The manipulations with the supports, which are performed at the position, are carried out under the action of the main hydraulic cylinder 2 as well as a series of four minor hydraulic cylinders 21 (Figs 1.2, 28-37). Operations on horizontal movement of the plate, which are performed at the position, are carried out under the action of the hydraulic cylinder 22. The frame 2 of the machine consists of two developed lateral supports 23 and 24 of the C-shape of the form, separated by a certain distance from each other. from each other and provided with upper narrow horizontal portions 25, lower wide horizontal portions 26 and vertical connecting, portions 2 Side beams 28 are located along the lower ends of the portions 26. A continuation of the lower portions 26 is a horizontal lower frame, the seam of converging side supports 23 and the lower front end beam 29, and the continuation of the upper parts 25 is a horizontal upper frame consisting of converging side beams 30 and the upper front end beam 31 The ends of the lower beam 29 extend beyond the front ends of the side beams 32 and attached to the protruding ends of the upper front end of the beam 31. The upper and lower intermediate transverse beams 33 and 34 are located horizontally between the two corner posts 35. The uprights 35 and the side supports 23 a 24 are attached to the machined areas of the steel base 36. To the two side supports 23 and 24, a creping feeder 37 for the molding sand, into which the molding sand comes from the feed hopper 38 through the shut-off hatch 39. The twin flasks are moved around the circumference by periodic turning of the disc 4. Usually at the beginning of any the machine cycle, each pair of flasks is in the required position at each of the four positions and in the divorced position, in which the upper flask 6 is above the lower flask 7. At the moment of turning the disc 4, the paired flasks move from each position along the arc at an angle of 90 ° to the next adjacent position, with all four pairs of flasks moving in a clockwise direction (Fig. 1 The indicated movement operations are possible due to the presence of the upper cross 40 at the turntable, intended to hold the four upper flasks 6, and the lower cross 41, intended to hold the lower supports (Figs. 37 and 38). Each of the four upper or lower flasks is a rectangular cast metal structure with end faces 42 and side walls 43 that have an inclination under a small angle towards the top and inward. The upper flasks do not expose the bottom or the cover. Each end wall 42 has a horizontal, elongated and wide flange 44 with a hole 45 in which a sleeve 46 is mounted, indicated for the length of the mounting studs 47 of the upper cross 40 provided to ensure the proper position of the upper flask when performing various operations in the working position. Near the other ends of the flanges 44 are vertical bolts 48, which extend beyond the lower end of the flask and on which the springs 49 are put. The upper ends of the spring rest against the flanges 44y and the lower ends of the springs adjoin the washers 50. These springs separate the model plate 9 from the upper flask 6 in the operation of the model 11 Udssen, executed at the working position. Each top box has additional holes 51, which are located in the lateral projections 52, one of the lugs is located on one of the walls 42 near its lower edge, and the other one on the other wall 42, the lugs are shifted in opposite directions from axis of symmetry. The two holes 51 are intended for the installation posts 47 of the lower flask 7. The four walls 42 and 43 of each upper flask 6 have an internal wear-resistant lining 53 and holes 54, each of which has a small bowl-shaped strainer 55 mounted, in the bottom wall of which there are slots 56 and one are bilayer. The width of the slots 56 is so small that when blowing air can pass through the walls of the upper flasks, and the air supplied to the molding mixture remains inside the flasks. This air supplying operation is performed through the open upper end of each upper flask 6 (Figs. 5 and 8). Each bottom flask 7 is a structure similar to a box without a bottom and a cover with end 57 and side 58 walls inclined to the top and inward. The top / bottom dimensions of each bottom flask are equal to the sizes of the bottom end of the adjacent upper flask. The four walls 57 and 58 have holes 59, which are similar to the holes 54. One of the filters 55 is inserted into each hole 59. The end walls 57 have two eyes 60, which are offset in different directions from the axis of symmetry and in which pins 47 are installed, intended to get into holes 51 of lugs 52. Additional lugs 61 on one of the side walls 58 have holes 62, which are intended for catchers 18. Flanges 63 end walls OK 57 H) T holes 64 for insertion of dowel pins 47 into them so as to ensure the proper position of the model plate 9 relative to the bottom flask 6 during the air supply operation and also for the protruding dowel pins of the swivel disk to go upwards so as to ensure the correct position bottom flask 6 on the disk. One of the end walls 57 has an outwardly protruding tide 65 with a horizontal rectangular opening 66 through which the moldable mixture is mixed with air when both flasks 6 and 7 are simultaneously filled with the molding mixture. The elongated thin strip 67 defines the lower boundary of the hole 68. and is held in position with screws 69- (Figs. 7 and 8). Model plate 9 is in the form of a flat, rectangular plate, to the opposite sides of which an upper 70 and a lower 71 surface are attached. The upper surface 70 is intended to contact the lower base of the upper flask 6 during air supply and pressing operations at the working position, and the lower surface 71 to contact the upper end of the lower flask 7. When the proper sealing of the walls 43 and 42 is achieved, together with the upper surface 70 they form a cavity 72 in the upper flask, which, when the air is supplied from the molding sand, is filled with the molding sand (Fig. 21). The walls 57 and 58 together with the bottom surface 71 form a cavity 73 in the bottom flask, which is supposed to be filled with a molding sand with its subsequent molding. Four holes 74, located in the corners of the model plate, are intended for catchers 75 located on a movable cantilever 76, which is attached to two side supports 23 and 24 and located within the working position. The console 76 consists of two horizontal horizontal arms 77 adjacent to the trajectory of movement of the flasks 6 and 7, when the latter are moving within the working position, and which are held by the rods 78 at a distance from the side supports 23 and 2 In the normal position, the model plate 9 under the action of its own weight freely lies on the two the shoulders 77 of the cantilever 76. However, it can be lifted in the vertical direction from the indicated shoulders by the lower flask 7 during operations performed at the working position under the action of the plunger device 18. The pins are attached to the model plate 9 adjacent to its side faces and in the middle between its ends and are intended to fall into the holes | 64 of the flanges 63 of the bottom flask 7 in order to ensure the proper position of the model plate relative to the flask (Fig. 6, 16-26). Model plate 9 has four holes 79 located near its corners, which include the lower ends of the bolts 48. The base of the upper flask contacts the upper surface of the model plate during an operation to mix the eye together in the working position. The diameter of the holes 79 is such that the heads of the bolts 48 can pass through them, while the washers 50 cannot pass through these holes. Consequently, when performing the operation for converting the flasks, the springs 49 will be compressed, and after completing the compaction of the molding sand and pressure drop during the operation of the casting of the flasks, these springs contribute to the separation of the model plate from the base of the upper part of the forums (Fig. 6 and 8). The rotary disk 4 is held on the central support 80, from which the rotary column 81 goes upwards, on which the hub 82 is mounted, having a cylindrical inner surface and outside having a square shape when viewed from above. By the bolts 83, the upper and lower rectangular brackets 84 and 85 are attached to the side surfaces of the hub 82 to hold several radially arranged consoles, which are elements of the upper and lower crosses 40 and 41 of the rotary disk 4. These crosses consist of four radially the upper cantilevers 86 and the four radially arranged lower cantilevers 87. The lower cantilevers 87 are located directly below the upper cantilevers 86 and are parallel to them and at a certain distance from them. The ends of the column 81 are inserted into the upper and lower bearings 88 and 89, which are located on the frame 2 of the machine and on the support 80. Thus, the axis of rotation of the rotary disk 4 is generally held in a vertical position. The upper bearing 88 is a flanged ball bearing unit, which is attached to a plate 90 located in the central upper part of the frame 2 (Fig. 1-3).
    Each console 86 crosses consists of a bracket 84, to which are welded two parallel side Salki 91, going in the radial direction (Fig. 10). The outer ends of the beams 91 hold the T-bore bracket 92, which consists of an intermediate link 93, a long outer T-shaped head 94 and a short inner T-shaped base. Two supporting plates 96 are welded to both ends of the head 94 and the base 95, each of the plates having an upward directional mounting pin 97. The plate 96 serves to hold one end of the upper flask 6. Thus, the ends of the upper flask are located on the outer ends of the adjacent upper cantilevers 86, moreover, the main part of the flask body is located between the adjacent upper consoles 86 in the general plan of the crosspiece 40, which is indicated by a dotted line in four places in FIG. one.
    The bottom cross 41 is similar to the upper cross 40, and the lower rectangular hub plates serve to hold the radially diverging cantilevers 87 of the cross 41. The cantilevers 87 are similar to the upper consoles 86 (Figures 1, 2 and 12).
    The side beams 91 of the lower cantilevers 87 are wider than the beams of the upper cantilevers 86, and the support plates 96, which serve to hold the lower flasks 7, are welded to the lower edges of the more elongated outer T-heads 94 and to the lower edges of the short inner T-bases 95 and not to their upper edges.
    The difference between the bottom cross 41, on which the bottom flasks 7 are held, and the top cross 40, on which the upper flasks are held, is that the inner surfaces of the parallel lateral beams 91 of the lower cantilevers 87 have an anti-friction gasket 98.
    Additional elements of the lower crosspiece 41 are bushings 99, which go into four brackets 100 located on the outer surfaces of the elongated outer T-shaped heads of the T-shaped brackets 92, which are located at the ends of the lower cantilevers 87. The bushes 99 are designed to fall into , their vertically moving control pins 101 (Figs. 1 and 2), intended to stabilize the position of the rotary disk 4, after each of its n gates. The control pin 101 is spring-loaded upwards.
    The actuator 17 consists of four hydraulic cylinders 102, which are arranged in pairs, each jiapa specifying the movement of the internal
    rack rail. The central gear engages with both rails and has a vertical output shaft 103, which can rotate in both directions by 90. The actuator 17 is mounted on a support bracket 104 which is bolted 105 to the side support 24. To the output shaft 103 there is a drive lever 106, at the other end of which a hydraulic cylinder 107 is attached,
    0 with which spring-loaded,. The control pin 108 with the roller 109 is alternately inserted and removed from the guide grooves 110, which) are between the wear pads 98 of the lower cantilevers 87.
    The rotation of the disk 4 is carried out with the rotation of the drive lever 106 from the position indicated in FIG. 1 in solid lines in the direction of the pro. clockwise by 90, with this
    0, the pin 108 and its roller 109 move radially inward between the tabs 98, causing the disc 4 to rotate in a clockwise direction. At the end of the working stroke
    5 of the lever 106, as shown by the dotted line in FIG. 1, the rotary dial 4 is rotated exactly 90 °, with the pair of flasks 6 and 7 moving from the starting position to the next adjacent position to perform certain operations on it. At the end of each operation of rotating the disc using a hydraulic cylinder 107, a pin .108 with a roller 109 is pulled out of a radially 5 directional groove, and when the hydraulic cylinder is turned on, the actuator 17 is actuated in the reverse direction to return the drive lever 106 to the position indicated
    0 in FIG. 1 solid lines.
    To fix the disc 4 in position between the turning operations performed by the mechanism 16, the control pin 101 at the end of each rotation operation drops into the sleeve / 99,
    5 which is located at the end of each lower arm 87 of the cross, where it remains until the next rotation operation is performed.
    The pin 101 extends and retracts back with the help of a cylinder 111 (Fig. 2).
    The plunger device 18 is supported on the pad 112 includes a plunger 113 vertically disposed, on
    5, the upper end of which is fixed support pad 114, which serves for onpecjobKH molding sand. The central plunger 113 moves within the cylinder 115. The upper end
    The cylinder 0 is open, and the bottom has a blind wall 116, the support pad 114 and the floating plunger 117 are one piece, the plunger part of which is included in the outer sleeve 118. The latter can move relative to the floating piston 117. The said sleeve has an upper, vertical, closed the rectangular part 119, as well as the inner horizontal, flat, arm-shaped surface 120, on which there is usually a platform 114 (Fig. 17-21). When oil is supplied to cylinder 115 through port 121, the plunger 113 is mixed with the floating plunger 117 and the bushing, the central plunger 113 performs absolute movements of the pad 114 and the floating plunger 117. When the US plunger moves up, the sleeve 118 is brought into contact with the bottom flask and moves it during operations with different pairs of flasks in the work position. The upper oil inlet 122, located in the upper part of the sleeve 118, has an outlet in the upper part of the annular cavity 123 between the sleeve and the plunger 117, and the lower oil inlet 124, located in the lower part of the sleeve 118, has an outlet in its lower part. The part of the plunger 117, which is located between the holes 122 and 124, has an enlarged diameter and is used as the piston 125 of the wall of the sleeve 118, as well as within the cavity 123. The holes 122 and 124 are adapted for connecting flexible oil lines to the oil supply source under pressure and the flow of oil passing through these pipelines, is regulated by adjusting spools. When the pressurized oil enters the lower part of the cavity 123 through the lower opening 124, and the upper opening is operated to drain, the sleeve 118 together with the rectangular part 119 moves downward relative to the plungers 117 and 113. When the oil enters the upper part of the cavity 123 under pressure the upper hole 122, and the lower hole 124 are operated to drain; the sleeve 118, together with the vertical rectangular part 119, moves upward relative to the plungers 117 and 113. The sleeve 118 of the plunger device 18 has a horizontal platform 126 where there is ION up catcher 127, which are intended to ingress into the openings 62 the lower lug opoki7 shown in phantom in FIG. 1. When catchers 127 enter holes 62, lateral displacement of bottom flask 7 relative to plunger device 18 is prevented. Upper support part 19 consists of a fixed upper plate 128, which is normally inside a rectangular frame 129, the lower end of which is intended to be installed on the upper end of the upper flask b during the pressing operation (Fig. 22). The frame 129 moves in the vertical direction along the guides 130 immediately after the pressing operation, two double-acting hydraulic cylinders 131 are actuated, having rods 132 in order to return the frame 129 to its upper position (Figs 16, 23, 24, 25 and 26). ). When the cylinders 131 are operated in the opposite direction, the rods 132 move the frame 129 down to the position shown in FIGS. 17-21. The position of the stripper mechanism for removing the flasks from the mold is adapted to accept a pair of molding sand and pressure molds of the flasks 6 and 7, which are in a divided position, after the pair of flasks are moved in an arc at an angle of 90 ° from the mounting position of the rods, reduce two divided flasks in order to assemble the upper and lower parts of the mold and which are located in flasks 6 and 7, as well as to bring the support plate under the base of the assembled mold 10 and to carry out the removal of the flasks from the assembled mold, leaving the latter on the lower support plate (Fig . 12 , 28-33). The stripper mechanism consists of two guides 133, the upper and lower ends of which are attached to the brackets 134 and 135, which are attached to the intermediate transverse ball. cam 34 and 33 of frame 2. Along the guides 133 moves the stripper carriage 136, which consists of a horizontal platform 137. On the inner nodes of the platform there are two guide sleeves 138 that move along the guides 133. The carriage 136 moves in the vertical direction under the action of the plunger 139, which is driven by a stripper cylinder 20. In addition, the carriage 136 has two horizontal guides 140 on which the plates 14 are successively laid (Fig. 37) when they are fed from the accumulator under the action of the mechanism 15. The guides 140 have vertical plates 141 that are above the level of the platform 137. On carriage 136, there are also four auxiliary cylinders s 21 of the stripper mechanism. The latter are below platform 137 and have vertically moving plungers (pullers) 142, which go beyond the level of said platform and in an idle position are below the level of guide 140. When the auxiliary cylinders 21 are activated, the plungers 142 move upward to the position shown in FIG. 32 and 33, and move upward to the position shown in FIG. 32, 33. and 34, in which their upper ends are above the level of the guides 140, with this, the upper flask is raised
    6 To stop and partially free form from the flasks.
    The carriage 136 vertically moves along the guides 133 from the lower position shown in FIG. 2 and 28. When ets l plate 12 will capture the bottom flask 7 and press it to the top flask 6 with the subsequent movement of both flasks up until the assembled parts of the form and inside the flasks reach the base plate 13. They will be in this the position until the plungers 142 of the cylinders 21 are not carried out: the operation on the removal of the flasks. The plate 13 is attached to the bracket 143 (Fig. 2), which is attached to the lateral bolster 1m 30. The vertical movement of the slider shaft is under the action of the rod of the main cylinder 20, which is attached to the corner posts 35 of the frame 2 with the help of the bracket, 144 (Fig. 6, 16-26).
    The bottom plate feed and unloading mechanism 15 includes a feed roll table 145, which is located on one side of the machine, and a discharge roll table 146, which is located on the (other side of the machine. Both roll tables cover on both sides the specified position of the machine for the removal and unloading of molds. 145 has racks 147 and serves to hold the two guide rails 148 flush with the zimi 140 (Figs. 1, 37 and 38).
    The roller 145 holds the frame 141 of the bottom plate accumulator 14 and the cylinder 22 of the drive mechanism. The cylinder 22 is attached to the roller table 145 by means of a bracket 149 and is positioned so that the plunger 150 is horizontally displaced, which is usually in the retracted position shown in FIG. 37, Can grab the lowest plate 14 of the drive and move it along the rails 148 and guides the 140 / K position.
    The outer end of the plunger 150 has two rollers 151 that run around the rails 152 suspended from the feed 1U of the roller table 145. The rider 151 moves along the rails 152, ensuring that the plunger 150 is in the correct position, in which the plunger captures only the lowermost plate 14 from the accumulator.
    At each working stroke of the plunger 150 from the accumulator to the intermediate position, the plate 14 is passed along the rails 152. Consequently, during the working stroke of the plunger, the second plate will contact the first and force it to move forward along the direction of the knob 140. After the removal operations The flasks from the mold end in position and the assembled mold is located on the first bottom board; those 14, as shown in FIG. 37, a third plate is pushed out of the accumulator, while the second plate acts on the first and the last move. It spins from the KVDIH-140 to the unloading roller table 146. For this time, the second plate takes the required position on the carriage 136 and is ready to perform operations on the position.
    One complete cycle of the machine operation consists of four turning operations and each pair of flasks around the central vertical axis of the rotary
    O disk 4 performs one full turn, since with this rotation of disk 4, four pairs of flasks 6 and 7 of the WEHHO move in an arc at an angle of 90 and each pair of flasks at the end of each занимает5 DOGO cycle of operation of the pulsation takes its initial mixture.
    At the position (and before starting the molding machine, all elements of the plunger device 18 occupy the positions shown in Fig. 16, and at the beginning of any cycle of the machine’s operation, the oil enters the hole 122, at that the sleeve 118 is set to the position shown in Fig. 17. At the same time, cylinders 131 are actuated and the
    5, the rods 132, causing a corresponding movement of the frame 129. Flasks 6 and 7 remain, respectively, on the upper and lower crosses 40 and 41 of the rotary disk. The oil enters into the hole 121 located at the lower end of the cylinder 115. At the same time, the central plunger 113 goes up and at the same time the sleeve 118 rises so that the square
    5, a portion 119 of the sleeve 118 contacts the lower end of the bottom flask 7 (FIG. 18). With further mending upwards, the sleeves 118 and the plunger 113 simultaneously rise.
    0, the flask and its upper end come into contact with the lower surface of the separate plate 9 (Fig. 18). Since the plunger 113 and the sleeve 118 are raised still higher, the model plate 9, moving up, is in contact with the lower
    5 butt upper flask (Fig. 1;). Oil supply to bore 121 cont. As long as the plunger 113, the sleeve 118, the bottom flask 7, the model plate 9 and the top flask 6 do not reach a position where the upper end of the flask is. is included in the clock cycle with the bottom end of the frame 129 (Fig. 21).
    At this time, the operation begins.
    5 supplying the mixture of air with the molding mixture at the same time through two sandblasting heads 153 and 154 (Fig. 21) into the cavity, formed by flasks 6 and 7. The sandblasting head 153 passes down through the upper plate 12 7.
    The sandblast head 154 passes through an opening 66 in one of the end walls 5 7 of the bottom flask 7. The molding sand is fed until the pp until both cavities are located
    5, inside the two flasks, are not filled, and the molding sand in them will not condense. After the cavities in both flasks are filled with a compacted formulating mixture, the pressure of the oil passing through the opening 122 decreases with, at the same time the pressure of the oil in the hydraulic cylinders 131 also decreases. At this time, the upwardly displaced plunger 113 and the bottom support on the platform 114 produce additional molding of the molding sand in the cavity bounded by the lower flask and the model plate 9, which in turn additionally presses the molding sand in the cavity of the limited upper bearing and upper support plate 128. Mostly, the pressing operation and the final manufacturing of the rod 155 (Fig. 1-26) is done by a conventional tag extending to the top of the head. After the above pressing operation, The cylinders 131, 129 are washed upwards (Fig. 23) and an operation is carried out to remove the model, in which the oil pressure at the opening 121 pgsha, while the oil enters the opening 124 under pressure. The sleeve 118 is retracted, downward relative to the support pad 114, and the plunger 113 with the support pad 114 and the floating plunger 117 moves down, lowering both flasks 6 and 7 with the mold parts down from the top plate 128. When the plunger 113 moves down the top plate 6 and a part of the mold, which is in the flask, occupies the required position on the adjacent console 80 of the cross, shown in FIG. 24 while the bottom flask with another part of the mold continues to descend. When the piston 113 is moved down the model plate 9, it takes the required position on the cantilever 76 (Fig. 24). While moving down the bottom flask 7 even more, it takes the required position on the lower arm crosses 87. Thus, various elements of the flask and the plunger device occupy the position , shown in Fig. 25. At the end of the first quarter of the machine’s cycle of operation, and after parts of the mold and flask are fed to the position for the installation of rods, there are no automatic operations; at this position there is an area where It may be necessary to manually position the rod 156 in the lower part of the mold, and if the flask is in position, the upper flask 6 is in a raised position relative to the lower flask 7 (Fig. 27). Fig. 28 shows the positions of the machine components at the beginning of the third quarter of its cycle of operation. At this point, the platform 137 vertically moving the carriage 136 is in its lowest position, with the bottom plate 12 lying on the guides 140, while the flasks 6 and 7 are in their positions on the console x 86 and 87 upper and lower crosses. The operation to remove the flasks from the mold begins at the position from the supply of oil to the cylinder 20 of the stripper mechanism so that the plunger 139 moves upwards. The platform 137 rises up and the bottom plate 12 comes into contact with the lower part of the form (Fig. 29). When the platform 137 moves the longest, the bottom plate 12 rises, the bottom rim 7 and the latter rises tightly to the top flask 6. parts of the frms are assembled and form the assembled form (Fig. 30). With even greater movement of the platform 137 up the upper end of the assembled form comes into contact with the base plate 13 (Fig. 31). When the platform 137 is in the position shown in FIG. 31, the assembled form is crimped under very low pressure between the plates 12 and 13. At this point, oil is supplied to the four auxiliary cylinders 21 of the stripper mechanism and plungers 142 begin to flow out, which forcefully move the flasks 7 and 6 upwards, removing them from the mold (FIG. 32). After that, the master cylinder 20 is actuated in order to lower the platform 137 with the plungers 142 extended (Fig. 33). As soon as the upper flask 6 reaches the level of the cantilevers 86 to the position, it remains on them, and the platform 137, the lower flask 7 and the mold continue to lower (Fig. 34). When the bottom flask 7 reaches the level of an adjacent pair of cantilevers 87 of the lower cross, it also takes the desired position on them, while the platform with the shape goes down until the plunger 139 goes down the full stroke, and the nodes do not occupy the position shown in fig. 35 and 36. At this moment, the bottom plate, located on platform 137, occupies a position flush with the bottom plate of the storage ring. The unloading operations are carried out while the platform 137 and the assembled form located on it occupy their extreme positions (Figs. 36 and 38). The unloading is carried out when the cylinder 22 is turned on and the plunger 150 is actuated, while the bottom plate 12 of the accumulator moves on the rails 14.8 to the desired position. With said movement of the bottom plate 12, the previous plate is pushed forward to the position in order to replace the plate located on the guides 140, in turn, the latter with the form on it is pushed out onto the discharge roller 146. The subsequent operation of turning the rotary disk 4 and with him, the crosses 40 and 41 are made in order to transfer the empty flasks b and 7 from the position to the idle position.
    The operations performed on the position are selective and can be performed manually if required. These operations include the removal of flasks for cleaning or replacing them, or checking machine components when idling.
    As in conventional molding machines, separate parts of the mold are made during the operation of feeding the molding sand / air, which is shown, in FIG. 21 and is completed by the crimping operation (Fig. 22).
    . With the above operations, the cavities 157 and 158 (Figs. 24 and 25) and the sprue 159, which goes into the cavity 157 of the upper part of the form, are formed in the shape of the mold. In assembled form, the combination of two cavities 157 and 156 forms a casting cavity into which molten metal flows through the sprue 159.
    权利要求:
    Claims (2)
    [1]
    1. Molding machine for the manufacture of sintered boxes, soSv
    The base, the support carrier mounted on it with support for the upper and lower flasks, is located one above the other sub-pressing drive plates, between which is mounted a bracket with a double-sided model plate, a molding hopper, two sandblasting heads and means for extracting half-molds and assembling them, . distinguishing the fact that, in order to increase productivity and improve the conditions for the insertion of rods, the carrier means is made in the form of spaced coaxially with each other at a fixed distance to restoran
    5 with a rotational drive relative to the vertical COLUMN, and the supports are fixed on the crosses in pairs, respectively, with the number of positions.
      -
    0
    [2]
    2. The machine according to claim 1, characterized in that the drive of the crosses is made in the form of a Maltese (Khanizm with a horizontal lever, one end of which is fixed on the output shaft of the mechanism, and on the other is mounted a vertical drive pin, interacting with the bottom cross.
    0
    Sources of information taken into account in the examination
    1. US patent 3648759, CL. 164-182, 1972. i, l, g, t / // yr k / / / g / / ./,i .01 f: 1 -CTIl F- -dL-L I &amp; m. 5 g f /
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    类似技术:
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    同族专利:
    公开号 | 公开日
    DE2303561A1|1973-09-20|
    JPS5126291B2|1976-08-05|
    DE2303561B2|1977-09-15|
    AU5124573A|1974-07-25|
    FR2187460B1|1979-01-12|
    AU465673B2|1975-10-02|
    CA964429A|1975-03-18|
    FR2187460A1|1974-01-18|
    DE2303561C3|1978-05-11|
    IT974437B|1974-06-20|
    SE413292B|1980-05-19|
    GB1419313A|1975-12-31|
    JPS5011929A|1975-02-06|
    ES411990A1|1976-05-01|
    US3828840A|1974-08-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3589432A|1967-10-02|1971-06-29|Sherwin Williams Co|Match plate foundry molding machine|
    US3589431A|1969-01-09|1971-06-29|Harrison E Fellows|Mold making equipment utilizing vertical mold blowing and plural rammers|JPS56135B2|1975-08-25|1981-01-06|
    DE2653788C2|1976-11-26|1981-08-27|Bühler, Eugen, Dipl.-Ing., 8871 Burtenbach|Method and device for producing casting molds from molding sand containing binding agents|
    DE2721874C2|1977-05-14|1983-09-29|Michael 8900 Augsburg Achinger|Foundry molding machine|
    CH636288A5|1978-09-05|1983-05-31|Inventio Ag|FOUNDRY MOLDING MACHINE FOR THE PRODUCTION OF CASELESS FOUNDRY MOLDS.|
    US5941296A|1994-03-24|1999-08-24|Metal Engineering Kabushiki Kaisha|Method for controlling the formation of a sand mold|
    US6763859B1|2003-02-10|2004-07-20|Exotic Rubber & Plastics Corp.|Blow tube construction|
    EP1837099A3|2006-12-06|2008-01-02|Sintokogio, Ltd.|Moulding machine for making an upper and a lower mould and method for operating said machine|
    JP4221731B2|2006-12-06|2009-02-12|新東工業株式会社|Vertical mold making machine|
    EP1930101B1|2006-12-06|2017-04-19|Sintokogio, Ltd.|Molding machine|
    DE102007026537A1|2006-12-18|2007-11-29|Sintokogio, Ltd., Nagoya|Molding machine for molding a pair of box-less casting molds comprises molding boxes, an exchangeable model plate, a device for moving the boxes, pressing parts, a support device and adjusting drives for moving the pressing parts|
    JP5510823B2|2010-07-23|2014-06-04|新東工業株式会社|Unframed mold making method and unframed mold making apparatus|
    BR112012028034B1|2010-07-23|2017-12-19|Sintokogio, Ltd.|A METHOD OF MOLDING WITHOUT BOXES OF MOLDING AND A MOLDING MACHINE WITHOUT BOXES OF MOLDING|
    JP5594593B2|2010-10-06|2014-09-24|新東工業株式会社|Punched frame mold making apparatus and punched frame mold making method|
    CN102794413B|2011-05-25|2014-06-04|广西玉柴机器股份有限公司|Sand box positioning device|
    CN104624985B|2015-01-16|2016-06-22|东风商用车有限公司|A kind of sand mold on-line checking shift method of removable-flask moulding|
    CN106363142B|2016-12-05|2018-10-12|攀枝花市蓝天锻造有限公司|Core shooter|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US00233438A|US3828840A|1972-03-10|1972-03-10|Cyclicly-operable machine adapted to produce and assemble cope and drag mold parts|
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