• 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:

    公开号:SU1825335A3
    申请号:SU894614811
    申请日:1989-08-18
    公开日:1993-06-30
    发明作者:Dzh Straub Melvin；Kalash Edvin；A Svenson Duglas
    申请人:Minnesota Mining & Mfg；
    IPC主号:
    专利说明:

    The invention relates to devices for applying layers of material with gaps in the transverse direction of a long web. when the web is continuously moving along a path through a device in which the layers of material to be applied are segments of the web.
    The aim of the invention is to simplify the deposition of layers of material and increase the efficiency of deposition.
    for applying at intervals of layers in the transverse direction across a long web, which forms a through path for the web, contains the input and output sections of the path spaced laterally from each other, and a transverse section of the path between adjacent end and initial ends of the input and output sections trajectories. The canvas moves in the first direction along the input and output sections of the trajectory. The device periodically moves a portion of the web along the transverse portion of the path in position on the rib in a direction parallel to the first direction and at approximately a predetermined speed, to substantially stop the longitudinal movement of the portion of the web along the transverse portion of the path. The device applies a layer of material, such as a tape, in the transverse direction across a portion of the web as it moves tangentially by the periphery of the rotating applicator drum. 2 sec and 10 z.p. f-ly. 3 ill.
    1825335 AZ
    In FIG. 1 shows a vertical side view of the device; in FIG. 2 is a partial view on an enlarged scale along AA; nafig. 3 is a partial enlarged view of BB in FIG. 2 „
    The applicator 10 for applying layers of material 8 with gaps in the transverse direction across a long fabric 11, continuously moving through the device at a constant speed using an external drive system (not shown), is intended for applying layers of hot-melt elastic material 8 on a polymer fabric 11, for example, an embossed polyethylene a film from 0.0023 to 0.0038 cm thick, which can subsequently be cut into pieces during the production of disposable diapers.
    The applicator 10 comprises a housing 12 in which means are provided for forming a path for the web 11, including the inlet path portion 14 along which the edges of the web 11 form parallel planes perpendicular to the surfaces of the web 11, with the inlet path section 14 ending in portion 15 (FIG. 2), the exit portion 16 of the path along which the edges of the blade 11 form parallel planes perpendicular to the surfaces of the blade 11, and at a distance from the planes formed by the edges of the blade 11 along the input the trace path 14, which (the exit path portion 16) begins with a portion 18 (FIG. 2) adjacent to the portion 15, and the transverse path portion 20 (FIG. 2) between the end and initial portions 15 and 18 of the input and output portions 14 and 16; a path that is perpendicular to the inlet and outlet path sections 14 and 16, but which can be located at other angles relative to them, if necessary for applying layers of material 8 at a different angle than the edges of the web 1 1. The device 10 can move to feed the web 11 from the inlet portion 14 of the path through the transverse portion 20 of the path to the outlet portion 16 of the path and includes means for periodically moving part of the web 11 along the transverse portion 20 of the path in a rib position in the direction parallel to the named planes, while changing the individual lengths of the input and output sections 14 and 16 of the trajectory. but keeping their joint lengths constant in magnitude, while moving between the first position (shown by dashed lines in Fig. 2). in which the input section 14 of the trajectory has its maximum length. A tool comprising a rotating vacuum drum 21 of the applicator is provided for applying layers of material 8 (for example, segments of tape) transversely across a portion of the web 11 along the transverse portion 20 of the path while moving part of the web 11 along the transverse portion 20 of the path in position on the rib of first position to the second position. When the web 11 continuously moves in the longitudinal direction with a predetermined speed in the first direction along the inlet and outlet path sections 14 and 16, and the web section 11 along the transverse path section 20 moves in the rib position from the first position to the second position in the first direction with the same at a given speed, the length of the input path portion 14 of the path increases, and the length of the output portion 16 of the path decreases at a speed equal to that given speed, so there is essentially no longitudinal movement portions of the web 11 along the transverse portion 20 of the path, and layers of material 8 can be applied transversely across the portion of the web 11 along the transverse portion 16 of the path by the periphery of the applicator drum 21 when this portion of the web 11, supported by the plate surface 19, moves tangentially along this periphery, and the drum 21 rotates in such a way that its periphery also moves in the same direction at a given speed,
    The means for determining the final and initial ends 15 and 18 of the input and output path sections 14 and 16 and the transverse path section 20 for the web 11 includes the first and second parallel spaced apart elongated guide elements 22 and 23 (see FIG. 2), which are cylindrical light-weight air sterns, reaps (i.e., each guide member 22 and 23 is made of a hollow, light-weight stainless steel tube and comprises means having a plurality of holes along its periphery (not shown) for guiding a layer of air under a greater pressure than atmospheric between its periphery and the adjacent surface of the web 11. In order to form a gap between the part of the web 11. passing around their periphery and their surfaces. The guiding elements 22 and 23 are located at acute angles (for example 45 °) relative to planes formed by the edges of the web 11 along the input and output path sections 14 and 16, with the first guide element 22 forming the end end 15 of the input path section 14, the second guide element 23 forming the initial horse TS 18 output section 18 of the trajectory. Canvas 11, passed at an angle of 180 degrees around the periphery of each of the guiding elements 22 and 23 and lokhodutseo between the guides ele5
    1825335 with the tools 22 and 23 for forming the transverse section 20 of the web path, and the means for periodically moving part of the web 11 along the transverse path portion 20 and positioned on the rib in a direction parallel to the planes formed by the edges of the web 11 along the input and output path sections 14 and 16, between the first and second positions contains means (including the carriage 25, on which the guide elements 22 and 23 are mounted, which can be moved along the linear track guided by the rollers 26 on the housing 12) to return the translational movement of the guide elements 22 and 23 along a path parallel to the planes formed by the edges of the web along the inlet and outlet sections 14 and 16 of the path. Using air rods for the guide elements 22 and 23 significantly reduces friction between the guide elements 22 and 23 and the web 11 thereby facilitating the rapid acceleration, deceleration and high speed of movement of the web around the guide elements
    22, which occurs during periods of reciprocating movement of the guide elements 22 and 23 until the end of the movement of the guide elements 22 and
    23, in order to move a portion of the web 11 along the transverse portion 20 of the path in position on the rib to the second position (shown by the dotted line in FIG. 2), the web 11 will begin to move in the longitudinal direction at a predetermined speed around the guiding elements 22 and 23 and along the transverse portion 20 of the path when the guiding elements 22 and 23 again begin to move part of the web 11 along the transverse path portion 20 in the rib position from its second to its first position, the web 11 will move in the longitudinal direction around n of the guide elements 22 and 23 and along the transverse portion 20 of the trajectory at approximately twice the specified speed, and at the end of the movement to the first position (shown by solid lines in Fig. 2), the blade 11 will again move in the longitudinal direction at a given speed around the guide elements 22 and 23 and along the transverse section 20 of the trajectory.
    The means for reciprocating movement of the guide elements 22 and 23 along the trajectory parallel to the planes formed by the edges of the web along the input and output sections 14 and 16 of the trajectory contains a drive mechanism 28 (see, p "i. <J. Ι1riv" kw ·· ι . ·>: ·; .Lom 27 from the drive system, linking οι other transport mechanisms along yaotna (not shown), which moves the blade 11 along the sections of the blade 11. The drive mechanism 28 rotates the drive wheel 29 connected to the xapeika 25 by means of a connecting link .nya 30, which is pivotally mounted with a finger 31 at one end on the periphery of the drive cs of the forest 29. and pivotally mounted with a finger 32 at its other end with an adjacent end of the carriage
    25. The import mechanism 28 moves the carriage 25 back and forth with the required speeds and acceleration and deceleration ratings in different sections of the movement, such as, for example, Indexer ’* drive, Cam.co. 1444, South Wolf Road, Wheeling, Illinois 60090.
    The drive mechanism 28 and the applicator drum 21 are synchronously driven by the drive system from different web transport mechanisms (not shown) so that layers of material 8 are applied in a repeating manner along predetermined web sections 11 (for example, each
    17.5 inches along the web 11). ko1D. the blade 11 moves at a single eccentricity of speed only at the drive speed of the drive system (for example, the blade speed is about 730 feet per minute when the drive speed of the drive system is a normal operating speed close to its top drive speed). The drive system from other web transport mechanisms is adjustable to be able to slightly increase or decrease the ratio of web speed 11 to the drive speed of the drive system (for example, the ratio of web speed to 812.5 feet per minute or 604 feet per minute when the drive speed of the drive system is the normal operating speed) to produce a repeating pattern, respectively, along longer or whiter than shorter lengths of web 11 (e.g., every 19.5 inches or every 14.5 inches along l of the blade 11), When increasing or decreasing the ratio of the speeds of the blade and the drive system, the blade speed does not match the peripheral speed of the applicator wheel 21 or the speed of the carriage 24 and the guiding elements 22 and 23 when they move part of the blade 11 along the transverse section 20 of the path in the rib from the first position to the second position. To compensate for this inconsistency, means 10 have been introduced into the device 10
    Ί to compensate for the speed of the web to match the speed of the web 11 along the input and output sections 14 and 16 of the path with the peripheral speed of the drum 21 of the applicator and the speed of the carriage 25 and the guiding elements 22 and 23 when they move part of the web 11 along the transverse portion 20 of the path in the Position on the rib from the first position to the second position.
    The web speed compensation means includes input and output elongated light-weight guide rollers or elements 36 and 38 located at angles of about 90 ° relative to the edges of the web parts 11 along the input and output path sections 14 and 16. The input guide element 36 forms the end of the input path section 14 against the first guide element 22, the output guide element 38 forms the end of the output path section 16 against the second guide element 23. The tool is in the form of two groups of guide rollers 40, 42, 43 and 44, 45, 46 47 mounted rotatably on the housing 12 are provided for guiding the web 11 at an angle of 180 °. Around the periphery of the input and output elements 36 and 38, respectively. Mounting means in the form of articulated levers 50 and 51. each bearing one of the guides of the input and output elements 36 and 38 at one of its ends, are pivotally mounted in their centers on the axes 53 and 54 on the housing 12. The other ends 56 and 57 of the levers 50 and 51 are pivotally connected to the coupler 58 between the ends 56 and 57 for mounting the input and output elongate guide elements 36 and 38 for movement to change the individual lengths of the input and output sections 14 and 16 of the path, while maintaining the total length of the input and output sections 14 and 16 of the tray torii, and means in the form of a connecting rod assembly 59 containing a wheel 60, driven synchronously by a drive mechanism 28 by means of a drive sprocket 61 and a chain 62 and connected by a connecting rod 63, pivotally connected to the periphery of the driven wheel 60 and the articulated lever 51, to move the mounting means and thereby the input and output guide elements 36 and 38 according to the required sample, to add or subtract from the longitudinal speed of the blade 11 fed through the device 10 along sections 14 and 16 of the path to match it with adannoy speed when the guide members 22 and 23 are moved from the first position to the second position at a predetermined speed. The connection point between the connecting rod 63 and the driven wheel 60 is changed by 180 ° in order to cause the connecting rod assembly 59 to fold alternately or to read with the longitudinal speed of the blade 11. The connecting rod 63 of the connecting rod assembly 59 is detached from the hinge lever 51, and the hinge lever is fastened to the housing 12 to prevent movement when an external web compensation device is not used. Instead of the rollers, the guide elements 36 and 38 can be made in the form of air rods, which will reduce friction between the guide elements 36 and 38 and the blade 11 and thereby facilitate the acceleration, deceleration or high speed of movement of the canvas at an angle of 180 ° around the guide elements 36 and 38 , “What happens during the reciprocating movement of the guide elements 36 and 38 in order to add or subtract from the longitudinal speed of the web 11 fed through the device 10 along the path sections 14 and 16.
    As seen in FIG. 1, means for applying a layer of material 8 generally transversely across the transverse path portion 20 while moving part of the web 11 along the transverse path portion 20 generally in position on the rib from the first position to the second position includes an applicator drum 21 that has a cylindrical the periphery and can rotate around an axis perpendicular to the planes formed by the edges of the web parts along the input and output path sections 14 and 16, and a plate attached to the carriage 25 and having a support surface 19 along the surface of the blade 11, along the transverse section 20 of the trajectory and opposite the drum 21 of the applicator. The drum 21 and the supporting surface 19 are sized and arranged so that the supporting surface 19 will move along a path tangential to the cylindrical periphery of the applicator drum 21 while moving the carriage 25 from the first position to the second position. The drive means for the drum 21 (not shown) rotates it synchronously and in the same direction as the abutment surface 19, while the means for reciprocating movement of the guide elements 22 and 23 moves to facilitate the application of layers of material 8 by the applicator drum 21 in the transverse direction
    K) a direction across a portion of the web 11 between the abutment surface 19 and the applicator drum 21.
    As shown, the device 10 can apply layers of material 8 in the form of segments of tape, the applicator drum 21 is a vacuum drum, and the means for applying layers of material 8 generally in the transverse direction across the transverse portion 20 of the path while the web 11 is moving along the transverse portion 20 of the path in position on the rib from the first position to the second position, further comprises means for forming a trajectory for feeding segments 9 of the tape extending from two levels of wound feed rolls 64 of tape to the periphery smart drum 21. These tools for forming a path include idle guide rollers 6974 leading to a first cooled drum 75 mounted rotatably on the housing 12 and having a periphery of about 290 °, which forms a portion of the path and which can enter into the contact and direct the second surface feed segments 9 of the tape to the second cooled drum 77 mounted rotatably mounted on the housing 12 and having a periphery of about 300 °, which forms a portion of the path between the first cooled a drum 75 and a vacuum drum 21. The device 10 includes means for applying a hot-melt adhesive effective for short-term pressing, or an electrically heated element 78 on the housing 12 along the periphery of the first cooled drum 75 for applying strips of molten adhesive, effective for short-term pressing, on the first surface feed segments 9 of the tape, movable along the trajectory of the periphery of the first cooled drum 75, while the periphery of the second cooled drum 77 can come into contact, cool and guide the adhesive coating along the first surfaces of the feed segments 9 of the tape. The means for advancing the feed segment has a driven roller 80, pressed against the periphery of the second cooled drum 75 with a nominal speed of the segments less than the speed with which the peripheral surface of the vacuum drum 21 of the applicator moves, the tool includes a rotating knife 82, which sequentially transversely cuts the feed segments 9 tape, when the roller 83 at the end of the lever 84, pivotally mounted on the housing 12 on the axis 85, is driven by the node of the connecting rod 86, is located in part of its cycle, and allows the tape segments 9 to be moved during the cutting period synchronously with the periphery of the drum 21. After that, the segments of the tape 8 with hot-melt adhesive will be brought into contact with a part of the blade 11 along the transverse section 20 of the trajectory.
    权利要求:
    Claims (12)
    [1]
    Claim
    1. The method of applying layers of material on the surface of a lengthy moving web, consisting in the fact that the web having two parallel edges is moved along the trajectory at a given speed and then the web is fed into the area for applying segments of the material layers in the transverse direction across one surface of the web in the time of periodic feeding of the layers of material, characterized in that, with a chain of simplification of the deposition of layers of material and increase the efficiency of deposition, the web is moved along a path including the input and leading sections along each of which parallel edges of the canvas form parallel planes perpendicular to the surface of the canvas and a transverse section for the canvas located between the end of the input and the beginning of the output sections, while the web * is moved in the vertical direction along the input and output sections of the trajectory along the transverse section move periodically at a given speed with a simultaneous change in the lengths of the input and output sections of the path, at which the length of the input section and EET minimum length and maximum ^ outlet portion, and vice versa, wherein the segments of layers of material applied to the transverse web portion,
    [2]
    2. The method of pop. 1, characterized in that the layer of material is elastic, and the fabric is a polymeric material and is used as disposable linen as a diaper.
    [3]
    3. The method of pop. 1, characterized in that the layer of material is an activated elastic material, and the fabric is made of a polymeric material and is used as disposable linen as a diaper.
    [4]
    4. An applicator for applying layers of material on the surface of a lengthy moving web, containing means located in the housing for forming a path of movement of the web having guide elements holding the body of the roll of material, means for applying cut layers of material in the transverse direction across one surface of the web having a cutting element for cutting material into layers, and located on one side of the plane of movement of the canvas, a vacuum drum with a cylindrical shell and axis, perpendicular a non-plane plane of movement of the web with the possibility of rotation about this axis, and a supporting element located opposite the drum with a clearance for the passage of the web, characterized in that, in order to simplify the deposition of layers of material and increase the efficiency of application, a means is installed in the housing for periodically moving part of the web along the transverse part of its trajectory, while the means for forming the path of the web includes the first and second spaced apart parallel elongated guides e elements located at acute angles with respect to the edges of the web along the input and output path sections and forming a transverse web path between the guide elements, the first guide element forming the end of the input path section and the second guiding element forming the initial end of the output path section, the web passes at an angle of 180 ° around the periphery of each of the guide elements, and the means for periodically moving part of the web along the transverse a portion of its trajectory in a position on the rib in a direction parallel to the planes between the first and second positions includes a means for reciprocating movement of the guide elements along a path parallel to the named planes.
    [5]
    5. The applicator according to claim 4, with the fact that the means for forming a path of movement of the web forms a transverse section of the path at right angles to the input and output sections of the path.
    [6]
    6. The applicator according to claim 4, wherein the apart from each other parallel elongated first and second guide elements of the means for forming a web path are located at an angle of 45 ° relative to the edges of the web along the inlet and outlet portions of the web path and form a transverse section of the web path between the guide elements.
    [7]
    7. The applicator according to claim 6, wherein each guide element comprises means for supplying an air stream under a pressure greater than atmospheric between the guide element and the adjacent surface of the web to form a gap between the part of the web passing around the periphery of the respective guide element, and corresponding guide element.
    [8]
    8. The applicator according to claim 6, wherein the applicator has means for temporarily changing the speed of the web along the inlet and outlet sections in the working position of this tool for periodically moving part of the web along the transverse section of the path in the rib position from the first position to the second position.
    [9]
    9. The applicator according to claim 8, with the fact that the means for temporarily changing the speed of the web along the input and output sections of the trajectory in the working position of this tool for periodically moving part of the web along the transverse section of the trajectory in the position on the edge of the first position to the second position has an input and output elongated guide elements located at angles of 90 ° relative to the edges of the web along the input and output sections of the path, while the input guide element calls the end of the input portion of the path against the first guide element, and the output guide element forms the end of the output portion of the path opposite the second guide element, means for guiding the canvas at an angle of 180 ° around the periphery of each of the • input and output guide elements, mounting means for mounting the input and output elongated guide elements for changing individual lengths of the input and output sections of the trajectory with the possibility of simultaneously maintaining a constant sum ary length of the input and output portions of the trajectory, and means for driving the mounting means.
    [10]
    10. The applicator of claim 9, wherein each inlet and outlet guide elements comprise means for supplying an air stream under a pressure greater than atmospheric pressure between the guide element and an adjacent surface of the web to form a gap between the portion of the web passing around the periphery of the guide element, and the guide element.
    [11]
    11, Applicator by π. 4, the fact that the means for applying cut layers of material in the transverse direction across the transverse section of the web path while moving the 5 part of the web along the transverse section of the path in the rib position from the first position to the second position contains means for moving the cylindrical periphery of the drum mounted 10 in synchronism with the support element during the movement of this means for reciprocating movement of the guide elements for applying a layer of material by the drum in the transverse direction 15 across the web part between the support member and the drum, the support member being made in the form of a plate having a flat supporting surface for supporting one 20 surface of the web along the transverse portion of the path and moved by means for reciprocating movement of the guide elements, this drum and the supporting element are 25 sizes and are installed so that the supporting element has the ability to move along a path tangent to the cylindrical periphery of the drum in the travel time of this means for 30 reciprocating movement of the guide elements from the first position to the second position.
    [12]
    12. The applicator according to claim 11, with the fact that the layers of material deposited by the vacuum drum 35 are segments of the tape having first and second surfaces, while the means for applying the cut layers of material in the transverse direction across the transverse 40 portion of the trajectory has a means for forming a trajectory for the feed segment of the tape leading to the periphery of the vacuum drum, including the first cooled drum mounted for rotation on the housing and having a peripheral, forming part to the trajectory with the possibility of contact, and the direction of the second surface of the feed tape, and the second cooled drum mounted for rotation on the housing and having a periphery forming a portion of the trajectory Between the first cooled drum and the vacuum drum, and the applicator has means for applying hot-melt adhesive effective for ~ short-term pressing, along the periphery of the first cooled drum, for applying a strip of hot-melt adhesive, effective for short-term pressing, on the first surface of the feed segment of the tape, moving along the paths * of the periphery of the first cooled drum, and the periphery of the second cooled drum is made with the possibility of contacting the cooling and the direction of the thermoplastic adhesive coating, effective when briefly pressed along the first surface of the feed segment of the tape, means for advancing the feed segment of the tape along trajectories at a speed slower than the speed of the peripheral surface of the vacuum drum, and means for transverse cutting of segments of a given length from the feed segment of the tape along the peripheral surface of the vacuum drum, so that the cut segment of the adhesive coated tape has the ability to drive into contact with a portion of the web along the transverse portion of the path.
    <Rig.g Fig.Z "b
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    同族专利:
    公开号 | 公开日
    DE68909882T2|1994-04-28|
    BR8904127A|1990-04-10|
    ES2044127T3|1994-01-01|
    KR900003046A|1990-03-23|
    EP0364087B1|1993-10-13|
    EP0364087A1|1990-04-18|
    CA1305914C|1992-08-04|
    JPH02103144A|1990-04-16|
    DE68909882D1|1993-11-18|
    KR0169958B1|1999-03-30|
    MX166206B|1992-12-23|
    US4987940A|1991-01-29|
    JP2744813B2|1998-04-28|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US07/234,310|US4987940A|1988-08-19|1988-08-19|Cross web layer application device|
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