JP2004269197A - Tape sticking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately stick a pressure sensitive adhesive tape to a desired place of a coating body even when an accurate sticking hindering factor of the pressure sensitive adhesive tape is caused. <P>SOLUTION: This tape sticking device 10 comprises a sticking head 34 for press-fitting the pressure sensitive adhesive tape 13 to a plate-like member 12 while delivering the pressure sensitive adhesive tape 13 in the prescribed direction, an edge detecting camera 54 for imaging a state of the pressure sensitive adhesive tape 13 before being stuck to the plate-like member 12, and head adjusting means 31 and 63 for adjusting a position of the sticking head 34 to the plate-like member 12 on the basis of image data from this edge detecting camera 54. The sticking head 34 is arranged so that the pressure sensitive adhesive tape 13 can be stuck to the plate-like member 12 by moving to the plate-like member 12. The head adjusting means 31 and 63 move the sticking head 34 to the plate-like member 12 so as to offset positional dislocation when the pre-sticking pressure sensitive adhesive tape 13 is positionally dislocated from a normal state. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tape sticking device, and more particularly, to a tape sticking device capable of precisely sticking an adhesive tape to a predetermined adherend.
[0002]
[Prior art]
2. Description of the Related Art A tape sticking device that sticks an adhesive tape to a predetermined adherend is known (for example, see Patent Document 1). This tape sticking apparatus is configured to move the adherend while feeding the adhesive tape toward the plate-like adherend, and to adhere the adhesive tape to the adherend.
[0003]
[Patent Document 1]
JP-A-9-286560
[Problems to be solved by the invention]
However, in the tape sticking device, when the adhesive tape before being attached to the adherend is displaced from a normal state, tape guide plates are provided on both sides of the tape to correct the displacement. To restrict the tape displacement. However, according to this method, when the tape starts to be displaced, the tape is forcibly regulated by the tape guide plate so as to pass through a desired position, so that the edge of the tape is damaged.
[0005]
[Object of the invention]
The present invention has been devised in view of such inconvenience, and its purpose is to apply an adhesive tape without damaging the tape even when a factor that hinders accurate application of the adhesive tape occurs. It is an object of the present invention to provide a tape sticking device that can accurately stick to a desired place on an adherend.
[0006]
[Means for Solving the Problems]
In order to achieve the object, the present invention includes an attaching head that presses the adhesive tape onto an adherend while feeding out the adhesive tape in a predetermined direction, and the adhesive tape is moved by relative movement of the attaching head and the adherend. In a tape sticking device for sticking to an adherend,
An imaging unit for imaging a state of the adhesive tape before being attached to the adherend, and a head adjusting unit for adjusting a position of the attaching head with respect to the adherend based on image data from the imaging unit. ,
The head adjusting means adopts a configuration in which, when the adhesive tape before application is displaced from a normal state, the adherend and the application head are relatively moved so as to offset the positional displacement. . According to such a configuration, even when any factor that hinders the accurate application of the adhesive tape occurs, the deviation of the application position of the adhesive tape due to the above-described factor is changed from the state of the adhesive tape before application to the adherend. The application head moves relative to the adherend so as to prevent the adhesive tape from sticking, so that the adhesive tape can be accurately applied to a desired location on the adherend.
[0007]
DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, it is preferable that the pasting head includes a lead end pressing means for pressing the lead end side of the adhesive tape to the adherend. With such a configuration, the lead end side of the adhesive tape can be firmly adhered to the adherend, and when a tensile force acts on the adhesive tape during the subsequent movement of the attaching head and the adherend. However, it is possible to make it difficult to peel the lead end side of the adhesive tape from the adherend.
[0008]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
FIG. 1 is a schematic perspective view of a plate-shaped member (adherend) after an adhesive tape is stuck by the tape sticking device according to the present embodiment, and FIG. 2 illustrates the tape sticking device. A schematic front view is shown. In these drawings, a tape sticking device 10 is a device for sticking an adhesive tape 13 such as a masking tape to a sticking surface 12A (an upper surface in FIG. 1) of a plate-like member 12 having a substantially rectangular shape in plan view. In this embodiment, a single-sided adhesive tape having an adhesive layer formed on one side is used as the adhesive tape 13. (Hereinafter, referred to as a “tape-attached portion”).
[0010]
As shown in FIG. 2 to FIG. 4, the tape applying device 10 is configured such that an adherend conveying unit 15 that conveys the plate member 12 and the plate member 12 that is conveyed by the adherend conveying unit 15. It is provided with a tape sticking means 16 for sticking the adhesive tape 13, and a gantry 17 for supporting the adherend conveying means 15 and the tape sticking means 16 from below.
[0011]
The adherend conveying means 15 is set so that the plate member 12 can be moved to the left in FIG. 3, and the belt 19 on which the plate member 12 is mounted and the belt 19 are wound around. A plurality of rotating members 20 including pulleys, rollers, and the like, a transport motor 21 serving as power for rotating the rotating member 20 located at the lower left side in FIG. 2 among these rotating members 20, and positioning for positioning the plate-shaped member 12 A mechanism 22 and a transport control device (not shown) for controlling the operations of the transport motor 21 and the positioning mechanism 22 are provided.
[0012]
The upper and lower widths of the belt 19 in FIG. 3 are set to be smaller than the upper and lower widths of the plate-like member 12 so that the plate-like member 12 is mounted so as to protrude from both upper and lower ends of the belt 19 in FIG. It has become. The plate member 12 is placed on the belt 19 such that the sticking surface 12A faces upward and the sticking side edge 12B is located on the tape sticking means 16 side.
[0013]
The positioning mechanism 22 is positioned closer to the tape application means 16 than the belt 19 and extends in the left-right direction in FIG. 3, and claw members 27 a, 27 b, 27 c provided at a plurality of positions outside the belt 19. It consists of:
[0014]
The end determining piece 26 is arranged so as to face the sticking side edge 12B of the plate member 12, and as shown in FIG. 4, the upper end portion is lower than the plate member 12 on the belt 19 in height. Is set to For this reason, the movement of the plate-like member 12 on the belt 19 toward the tape attaching means 16 is regulated by the end determining piece 26.
[0015]
The claw members 27a, 27b, and 27c are located outside the plate-like member 12 except for the sticking-side edge 12B on the end-determining piece 26 side when the plate-like member 12 is located at the sticking position P indicated by a dashed line in FIG. It is provided so as to be able to contact the peripheral part. Here, the sticking position P is the position of the plate member 12 when the adhesive tape 13 is stuck by the tape sticking means 16. The claw members 27a, 27b, and 27c can be moved in a direction perpendicular to the plane of FIG. 3 (vertical direction in FIG. 4) by driving of a driving device (not shown). That is, the claw members 27a, 27b, and 27c have a raised position in which the upper end contacts the plate-shaped member 12 (see FIG. 4) and a lowered position in which the upper end is positioned below the belt 19 and does not contact the plate-shaped member 12. (Not shown). The claw member 27b is urged in the Y direction in FIG. 3 and the claw member 27c is urged in the X direction by a driving device (not shown).
[0016]
The control of the transport motor 21 and the positioning mechanism 22 is performed as follows. That is, the plate member 12 is conveyed from the right side to the left side in FIG. 3 and the claw member 27a is put out in advance, and when the plate member 12 abuts, the driving of the conveyance motor 21 is stopped, and the claw members 27b, The claw member 27b is displaced upward from the lowered position, and the claw member 27b is urged in the Y direction by a drive device (not shown), and the claw member 27C is similarly urged in the X direction. Then, the plate-shaped member 12 is maintained at the sticking position P and positioned at the sticking position P by the end piece 26 and the claw members 27a, 27b, 27c. Then, as described later, after the adhesive tape 13 is attached to the tape attaching portion of the plate-like member 12 by the tape attaching means 16, the claw members 27a, 27b, and 27c are displaced from the raised position to the lowered position. Then, the movement restriction of the plate-shaped member 12 at the sticking position P is released. Then, the transport motor 21 is driven again, and the plate-shaped member 12 to which the adhesive tape 13 is attached is transported from the attaching position P to the left in FIG.
[0017]
The tape attaching means 16 is attached to a predetermined frame member 28 in a cantilever manner and attaches the adhesive tape 13 to the plate-like member 12. ) And a unit moving mechanism 30 for moving in the vertical direction (Y-axis direction) in the figure, and a sticking unit 29 and a sticking side control device 31 for controlling the operation of the unit moving mechanism 30.
[0018]
As shown in FIG. 2, the attaching unit 29 includes a shaft member 33 extending from the frame member 28 to the near side in the figure, an attaching head 34 rotatably attached to the shaft member 33, and a shaft member. And a head rotating mechanism 35 for rotating the sticking head 34 about the rotation center 33.
[0019]
The sticking head 34 is for pressing the adhesive tape 13 onto the tape sticking portion of the plate member 12 while feeding out the adhesive tape 13, and as shown in FIG. 5, rotates the adhesive tape 13 wound in a roll shape. A tape reel 37 that holds the tape as much as possible, a roller 38 around which the adhesive tape 13 fed from the tape reel 37 is wound, a guide member 39 that guides the adhesive tape from the roller 38 diagonally downward left in FIG. A first cylinder 40 provided integrally with the guide member 39, a first pressing roller 42 rotatably supported by a rod 40A of the first cylinder 40, and a distal end side of the guide member 39 (a left end side in FIG. 5). ), A suction device 46 arranged on the left side of the first pressing roller 42 in FIG. 5 to suck and hold the adhesive tape 13, and FIG. 5 of the suction device 46. A cutter 48 disposed on the left side, a cutter cylinder 49 for moving the cutter 48 up and down, a second pressing roller 51 rotatably supported on the left side of the cutter 48 in FIG. An edge detection camera 54 as an imaging unit for imaging the state of the adhesive tape 13 before being performed, an inspection camera 55 for imaging the state of the plate-shaped member 12 to which the adhesive tape 13 is attached, and a support for each of the above members In addition, a head plate 57 attached to the rotating shaft 33 is provided.
[0020]
The guide member 39 includes a guide surface 39A with which the adhesive tape 13 contacts, and a support portion 39B at the rear end side (right end side in FIG. 5) rotatably supported by the head plate 57. For this reason, when the second cylinder 44 is driven, the guide member 39 rotates together with the first cylinder 40 about the support portion 39B. The guide surface 39A is in contact with the surface of the adhesive tape 13 opposite to the adhesive surface, and is guided to the first pressing roller 42 with the adhesive surface exposed downward. .
[0021]
The edge detection camera 54 is arranged so that the state of the adhesive tape 13 located on the upstream side of the first pressing roller 42 can be imaged, and the adhesive tape 13 before being attached to the plate-shaped member 12 is fixed to a predetermined position. This is for detecting whether or not the position is shifted from the reference position. The reference position is obtained from a correlation between the position of the adhesive tape 13 before being attached to the plate member 12 and the position of the sticking side edge 12B of the plate member 12 at the sticking position P (see FIG. 3). Means a position where the pressure-sensitive adhesive tape 12 can be accurately applied to the tape-applied portion of the plate-shaped member 12.
[0022]
The head rotation mechanism 35 connects a head rotation cylinder 59 fixed to the frame member 28 (see FIG. 2 and the like) separately from the application head 34 and a rod 59A of the head rotation cylinder 59 to the application head 34 side. A link mechanism 60 (see FIG. 5) is provided. In the head rotation cylinder 59, the rod 59A moves in the left-right direction in FIG. 5, and the link mechanism 60 rotates the sticking head 34 counterclockwise in FIG. 5 when the rod 59A contracts. Thus, the second pressing roller 51 and the like are moved downward from the state shown in FIG.
[0023]
As shown in FIG. 3, the unit moving mechanism 30 employs a feed screw shaft structure, and moves the sticking unit 29 in the X-axis direction, that is, along the sticking side edge 12B of the plate member 12. It comprises a shaft moving mechanism 62 and a Y-axis moving mechanism 63 for moving the sticking unit 29 in the Y-axis direction orthogonal to the X-axis direction.
[0024]
As shown in FIGS. 2 to 4, the X-axis moving mechanism 62 is engaged with the screw shaft 65 extending in the X-axis direction and rotatably supported at both ends in the extending direction. A nut 66, an X table 67 fixed to the upper portion of the nut 66, X rails 69, 69 extending in the X-axis direction on both upper and lower sides of the screw shaft 65 in FIG. 3, and an X motor 70 for rotating the screw shaft 65. It is configured with. The lower surface of the X table 67 is slidably provided on the X rails 69, 69, and is moved in the X-axis direction by the driving of the X motor 70.
[0025]
The Y-axis moving mechanism 63 is fixed to the X table 67 at a position above the X table 67, and can be moved integrally with the movement of the X table 67. The Y-axis moving mechanism 63 includes a screw shaft 72 that extends in the Y-axis direction and is rotatably supported at both ends in the extending direction, a nut 73 that engages with the screw shaft 72, and is fixed to an upper portion of the nut 73. A Y table 74 for supporting the attaching unit 29; Y rails 76 extending in the Y-axis direction on both right and left sides of the screw shaft 72 in FIG. 3; and a Y motor 77 for rotating the screw shaft 72. It is configured. The lower surface of the Y table 74 is slidably engaged with the Y rails 76, 76, and is set so as to be movable in the Y axis direction together with the sticking unit 29 by driving the Y motor 70.
[0026]
The sticking-side control device 31 controls each of the tape sticking means 16 at a predetermined timing described below so that the adhesive tape 13 can be properly stuck to the tape stuck portion of the plate member 12 at the sticking position P. Control to operate actuators and devices.
[0027]
Next, the overall operation of the tape applying device 10 will be described.
[0028]
First, the plate-like member 12 before the adhesive tape 13 is attached is transported from the right side to the left side in FIG. 3 by the drive of the transport motor 21 (see FIG. 2). When a sensor (not shown) detects that the plate member 12 has approached the claw member 27a, when the claw member 27a comes out upward and the plate member 12 reaches the sticking position P, the drive of the transport motor 21 is stopped. Then, the claw member 27b is urged in the Y direction by a driving device (not shown), and the claw member 27c is similarly urged in the X direction, thereby positioning the plate member 12. At this time, the X table 67 is located at a position indicated by a two-dot chain line in FIG. 3 (adhering position P), that is, on the downstream side in the transport direction of the plate member 12 together with the adhering unit 29 and the like. The sticking head 34 at this time is in an initial state shown in FIG. That is, the adhesive tape 13 at this time has its lead end 13A held by suction on the suction surface 46A of the suction device 46, and is substantially straight with respect to the guide surface 39A, the first pressing roller 42, and the suction surface 46A. The contact is made while extending on the line. Further, the attaching head 34 is set in a posture in which the first and second pressing rollers 42 and 51 float with respect to the plate-shaped member 12. Furthermore, the portion of the adhesive tape 13 that is in contact with the guide surface 39A, the first pressing roller 42, and the suction surface 46A is opposed to the tape-attached portion of the plate member 12, and the lead end side 13A has a plate-like shape. The member 12 is substantially opposed to the left end side in FIG.
[0029]
Next, the suction holding of the lead end 13A by the suction device 46 is released, and the guide member 39 is rotated downward by driving the second cylinder 44. Thereby, as shown in FIG. 6, the first pressing roller 42 descends, and the portion of the adhesive tape 13 that has been in contact with the first pressing roller 42 is pressed against the plate member 12. At this time, the lead end 13A moves right above the left end of the plate member 12 in FIG. 6 with the lowering of the first pressing roller 42 due to the release of the suction on the suction surface 46A. From this state, as shown in FIG. 7, the first cylinder 40 is driven, and the first pressing roller 42 is moved between the position indicated by the solid line in FIG. 7 and the left end side of the plate-shaped member 12 in FIG. By rolling back and forth between the spaces, the lead end side 13A of the adhesive tape 13 is pressed against the plate member 12. Thereafter, the attaching head 34 moves rightward in FIG. Therefore, the first cylinder 40, the first pressing roller 42, and the second cylinder 44 constitute a lead-end crimping unit that crimps the lead end 13 </ b> A of the adhesive tape 13 to the plate member 12.
[0030]
After the lead end 13A is pressed against the plate member 12, the second cylinder 44 drives the first pressing roller 42 to the position shown in FIG. 5, and then the head rotating cylinder 59 is driven to rotate. The attaching head 34 is turned counterclockwise in FIG. 5 about the axis 33 as a rotation center, and the posture of the attaching head 34 is changed. Along with this, the second pressing roller 51 is located below the position in FIG. 5 and contacts the left end side of the plate-shaped member 12 in FIG. From this state, the X motor 70 (see FIG. 3 and the like) is driven to move the X table 67 rightward in FIG. 3, and as a result, as shown in FIG. The right side of FIG. At this time, the application head 34 presses the adhesive tape 13 to the plate member 12 with the second pressing roller 51 while feeding out the adhesive tape 13 toward the right side in FIG. In other words, by moving the attaching head 34 with respect to the plate member 12, the pressure-bonded portion of the adhesive tape 13 is shifted rightward in FIG. 8, so that the adhesive tape 13 is attached to the tape attached portion of the plate member 12. Will be.
[0031]
At the time of the above tape application, the state of the adhesive tape 13 immediately before application is imaged by the edge detection camera 54, and the image data is read by the application control device 31 and stored in advance by the application control device 31. Is compared with the reference position. As a result, when it is determined that the position of the adhesive tape 13 is shifted from the reference position, the sticking-side control device 31 calculates the shift amount and the shift direction, and based on the shift amount and the shift direction, determines the Y motor. 77 (see FIG. 3 etc.) is controlled. That is, the Y motor 77 controls the movement of the Y table 74 that operates integrally with the attaching head 34 so that the adhesive tape 13 can be paid out in a state in which the amount and direction of displacement of the adhesive tape 13 before attachment are offset. . This control is performed in consideration of the time until the portion of the adhesive tape 13 imaged by the edge detection camera 54 is actually attached to the plate member 12.
Therefore, even if the adhesive tape 13 before application is misaligned for some reason, the Y table 74 moves in a direction to eliminate the misalignment, so that the adhesive tape 13 is moved to the tape affixed portion of the plate member 12. It will be correctly affixed. In this way, the position of the bonding head 34 is adjusted in accordance with the positional deviation of the adhesive tape 13 before the bonding. Therefore, the sticking-side control device 31 and the Y-axis moving mechanism 63 adjust the position of the sticking head 34 with respect to the plate member 12 and move the sticking head 34 so as to offset the positional shift of the adhesive tape 12 before sticking. This constitutes head adjustment means.
[0032]
The inspection camera 55 captures an image of the state of the plate-like member 12 after being attached to the adhesive tape 13, and the image data is also read into the attachment control device 31. Then, the sticking control device 31 detects occurrence of a defect such as poor adhesion of the adhesive tape 13 by comparing with predetermined reference data.
[0033]
Immediately before the sticking of the adhesive tape 13 to the tape sticking portion of the plate member 12 is completed, the adhesive tape 13 is sucked and held on the suction surface 46A, and from this state, the cutter cylinder 49 is driven to move the cutter 48 downward. And the adhesive tape 13 is cut at the position. Thereafter, the second pressing roller 51 reaches the right end side of the plate member 12 in FIG. 8, and the adhesive tape 13 is pressed on the entire region of the plate member 12 where the tape is attached. Then, the head rotation cylinder 59 is driven, and the sticking head 34 is turned around the shaft member 33 in the opposite direction (clockwise direction in FIG. 8) to the posture shown in FIG. return.
[0034]
Thereafter, the claw member 27 (see FIG. 3) is displaced as described above, so that the movement of the plate-shaped member 12 is released, and then the transport motor 21 is driven again, and the plate on which the adhesive tape 13 is stuck. The shaped member 12 is transported leftward in FIG. Around this time, the X motor 70 is driven, and the X table 67 returns from the position indicated by the solid line in FIG. 3 to the position indicated by the two-dot chain line in FIG. 3 together with the attaching unit 29, and the above-described operation is repeated.
[0035]
Therefore, according to such an embodiment, factors affecting the accurate attachment of the adhesive tape 13, for example, vibration of the plate member 12 at the time of attaching the adhesive tape 13, or at the time of winding the adhesive tape 12 Even when there is a displacement in the width direction or the like, before the adhesive tape 13 is attached to the plate member 12, the positional deviation from a normal state is grasped, and the attaching head 34 moves so as to eliminate the state. This has the effect that the adhesive tape 13 can be securely adhered to the appropriate position of the plate-shaped member 12.
[0036]
In addition, in the said Example, although the sticking head 34 side was moved with respect to the plate-shaped member 12, this invention is not limited to this, and it is set as the structure which moves the plate-shaped member 12 side with respect to the sticking head 34. You can also.
[0037]
Further, the configuration of each unit of the apparatus according to the present invention is not limited to the illustrated configuration example, and various changes can be made as long as substantially the same operation is achieved.
[0038]
【The invention's effect】
As described above, according to the present invention, an imaging unit for imaging a state of an adhesive tape before being attached to an adherend, and the attaching head for the adherend based on image data from the imaging unit A head adjusting means for adjusting the position of the adherend and the affixing means so that the adhesive tape before application is displaced from a normal state by the head adjustment means so as to offset the positional error. Since the head is configured to move relative to each other, even when a factor that hinders accurate application of the adhesive tape occurs, the position of the adhesive head relative to the adherend changes according to the displacement of the adhesive tape before application, and the adhesive tape Can be accurately attached to a desired place on the adherend.
[0039]
Further, before the relative movement of the attaching head and the adherend, there is provided a lead end crimping means for crimping the lead end side of the adhesive tape to the adherend. Can be firmly stuck to the adherend, and peeling of the lead end side of the adhesive tape during subsequent sticking of the adhesive tape can be prevented, and the sticking of the adhesive tape can be performed reliably.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a plate-like member after an adhesive tape is attached by a tape attaching device according to the present embodiment.
FIG. 2 is a schematic front view of the tape attaching device.
FIG. 3 is a schematic plan view of the tape attaching device.
FIG. 4 is a schematic side view of the tape attaching device.
FIG. 5 is a schematic enlarged front view of the attaching unit.
FIG. 6 is a view similar to FIG. 5 for explaining the state of the sticking unit immediately after the start of sticking of the adhesive tape to the plate member.
FIG. 7 is a view similar to FIG. 5 for explaining the state of the pasting unit after FIG. 6, that is, the operation of pasting the lead end side of the adhesive tape to the plate-shaped member.
FIG. 8 is a view similar to FIG. 5 for explaining a state of the attaching unit after FIG. 7, that is, an operation of attaching the adhesive tape to the plate member by moving the attaching unit with respect to the plate member.
[Explanation of symbols]
10 Tape sticking device 12 Plate member (substrate)
13 Adhesive tape 13A Lead end side 31 Adhesive side control device (head adjusting means)
34 Pasting Head 40 First Cylinder (Lead End Crimping Means)
42. First Pressing Roller (Lead End Crimping Unit)
44 2nd cylinder (lead end crimping means)
54 Edge detection camera (detection means)
63 Y-axis moving mechanism (head adjusting means)

Claims (2)

A tape attaching device that includes an attaching head that presses the adhesive tape onto an adherend while feeding out the adhesive tape in a predetermined direction, and that attaches the adhesive tape to the adherend by relative movement of the attaching head and the adherend.
An imaging unit for imaging a state of the adhesive tape before being attached to the adherend, and a head adjusting unit for adjusting a position of the attaching head with respect to the adherend based on image data from the imaging unit. ,
Wherein the head adjusting means relatively moves the adherend and the applying head so as to offset the positional shift when the adhesive tape before application is displaced from a normal state. apparatus. 2. The tape sticking apparatus according to claim 1, wherein the sticking head includes a lead end pressing unit for pressing a lead end side of the adhesive tape to the adherend.

Images