JP2006199325A - Sheet material-attaching apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To precisely attach an adhesive sheet material, such as a sticker, cushioning material, or functional film, without occurrence of an air bubble, wrinkle, or the like, to a predetermined part of an item to which the adhesive sheet material is to be attached. <P>SOLUTION: Each of a series of sheet materials 7 stuck on mount paper 6 is peeled from the mount paper 6 in the position of a peeling edge 5 by an attaching head 10, which holds the underside of the sheet material 7 and is directly movable between the peeling edge 5 and the item 30 to which the sheet material 7 is to be attached. The attaching head 10 holding the sheet material 7 is moved to the item 30 to which it is to be attached. Then, the sheet material 7 held on the attaching head 10 is attached to a predetermined part of the item 30. In this case, the attaching head 10 has a sheet material-holding face 20 rotatable around a support shaft 13 and having an adhesive layer formed in the shape of an arc. In synchronization with winding the mount paper 6 while the sheet material-holding face 20 is kept in contact with the one end of the sheet material 7 attached to the mount paper 6, the sheet material holding face 20 peels the sheet material 7 from the mount paper 6 by moving on the sheet material 7 so that it is stuck and held on the sheet material-holding face 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sheet material affixing device, and is a sheet in which an adhesive sheet material such as a seal material, a cushion material, and a functional film is accurately affixed to a predetermined position of an object to be adhered without generating bubbles or wrinkles. The present invention relates to a material pasting apparatus.

  In a sheet-like sticking device, which is generally called a labeler, etc., which can stick a sheet material, film, label, etc. having an adhesive surface to a predetermined position of a work as an object to be stuck, it is wound in a roll shape. A sheet material, a film, a label, etc. (hereinafter referred to as a sheet material) temporarily affixed on a mount (separator) having a release layer formed on the surface at a predetermined position such as a release edge, In synchronization with the roll-up operation of the mount, it is peeled off synchronously so that it is transferred from the mount to the sticking surface of the sticking head, and then the sticking head is attached to the sticking surface with the sheet material sucked and held. The sheet material is moved to a predetermined position, and a sheet material is applied to a predetermined position of the work by an application roller attached to the application head.

  FIG. 5 is a process sequence diagram schematically showing a pasting operation of the sheet material 51 to the workpiece 60 by the conventional sheet material pasting apparatus 50 and the apparatus. In this type of sheet material affixing device 50, as shown in the figure, as the mount 53 is wound by the take-up reel 52, the sheet material affixing device 50 is temporarily affixed continuously onto the mount 53 fed from the supply roller 54. The sheet material 51 is supplied to the tip of the peeling edge 55. Then, in synchronization with the end of the sheet material 51 reaching the leading edge of the peeling edge 55, the sticking head 57 moves to the leading edge of the peeling edge 55 along the linear slide rail 56 provided above, temporarily on the mount 53. The affixed sheet material 51 is peeled off (step I). Thereafter, the sheet material 51 is moved to above the base 61 on which the workpiece 60 is placed with the sheet material 51 held on the suction surface 58 (step II), and the sheet material 51 is attached to a predetermined position of the workpiece 60. . At this time, a part of the sticking head 57 is equipped with a sticking roller 59. This sticking roller 59 descends to the surface of the sheet material 51 when the sheet material 51 reaches the sticking position of the workpiece 60, and when the sticking head 57 moves forward, the sheet material lightly stuck to the surface of the workpiece 60. The sheet material 51 is surely stuck to the work 60 so as to press the surface of 51 (step III).

  However, in the above-described conventional sheet material pasting apparatus, as shown in FIG. 6A, the gap C between the adhesive sheet material 51 and the suction surface 58 of the pasting head 57 is accurate to about 0.05 to 0.2 mm. It is necessary to adjust well. If the gap C is insufficient, the sticking head 57 strongly contacts the sheet material 51, and synchronous peeling cannot be performed. On the other hand, when the gap C is large, synchronous peeling is possible, but the adsorbing force of the adhering head 57 becomes insufficient, and there arises a problem that the sheet material 51 cannot be adsorbed and held on the adsorbing surface of the adhering head 57. Further, because of the gap between the sticking head 57 and the adhesive sheet material 51, the sticking head 57 and the sheet material 51 may be displaced after peeling.

  FIG. 7A is a schematic explanatory view showing a normal suction holding state of the sheet material 51 by the suction head. In this type of sticking apparatus, a timing adjustment (hereinafter referred to as synchronous peeling adjustment) for peeling the sheet material 51 is performed by synchronizing the sticking head for maintaining the suction holding state of the sheet material 51 and the mount sent to the peeling edge portion. .) Is cumbersome and difficult. That is, in particular, the sheet material 51 is peeled off, and the speed / acceleration time for sending the backing sheet and the speed / acceleration time for moving the positioning head 57 are adjusted so that the sheet material 51 can be sucked and held at a predetermined position. Peel adjustment must be made. However, due to the thickness / adhesive strength of the pressure-sensitive adhesive sheet material 51 and the thickness of the backing sheet after the synchronous peeling adjustment, as shown in FIGS. There is also a risk of shifting in the direction.

  When the sticking operation of the sheet material 51 to the work 60 is performed by the sticking head 57 in the state shown in FIGS. 7B and 7C, for example, the sticking operation is performed in the suction holding state shown in FIG. When the operation is performed as described above, since the end of the sheet material 51 is not below the application roller, the application roller 59 cannot press the sheet material 51. For this reason, there exists a problem that the reliable sticking to the workpiece | work 60 cannot be aimed at. On the other hand, when the sticking operation is performed in the state shown in FIG. 5C, the sticking roller 59 cannot press the end portion 51a of the sheet material 51, so that air bubbles may enter the portion or the sheet material end portion 51a may be turned over. is there.

  In addition, the mechanism is such that the sticking head 57 is moved forward while being pressed by the sticking roller 59 while the sheet material 51 is adsorbed, and therefore, a tensile force acts on the sheet material 51 due to friction with the sheet material 51 and causes a tensile deformation. It also becomes.

  In order to solve the above-described problems, the applicant has focused attention on the shape of the sticking head, the suction operation, and the series of actions of the sticking head, and has developed it. At that time, it is known that a polarizing plate support having a shape similar to the shape of the pasting head is disclosed as a prior art (see Patent Document 1). Patent Document 1 discloses a polarizing plate support having an arc-shaped polarizing plate support surface having a predetermined curvature. This polarizing plate support has a vacuum suction hole formed on the support surface so that the polarizing plate can be held along a curved surface.

See JP 2002-182031 A.

  However, the apparatus disclosed in Patent Document 1 has a configuration in which a single-plate polarizing plate at a predetermined position is vacuum-adsorbed to the supporting surface of the polarizing plate support, and therefore, on the mount as shown in FIG. No consideration is given to the operation performed by adjusting the synchronized peeling of the continuously supplied sheet material with the sticking head. Further, when a thin sheet material is held by vacuum suction from the mount, bubbles are generated at the positions of the vacuum suction holes holding the sheet material when the sheet material is stuck, and the sheet material cannot be uniformly and cleanly stuck to the workpiece surface. For this reason, even if the support body of the above-mentioned shape is applied to the pasting head as it is, it is expected that the object as the sheet material pasting apparatus cannot be achieved. Accordingly, the object of the present invention is to eliminate the above-mentioned problems, and to stick an adhesive sheet material such as a sealing material, a cushioning material, a functional film, etc., at a predetermined position of an object to be pasted without generating bubbles or wrinkles. An object of the present invention is to provide a sheet material pasting apparatus that can be used.

  In order to achieve the above-mentioned object, the present invention is directed to the above-described peeling by a sticking head capable of moving a sheet material continuously stuck on a backing sheet on its lower surface and allowing direct movement between a peeling edge and an object to be stuck. Peeling from the mount at the edge position, moving the sticking head holding the sheet material to the position of the article to be stuck, and sticking the sheet material held by the sticking head to a predetermined position of the article to be stuck In the sheet material affixing device, the affixing head has a cylindrical side-shaped sheet material holding surface that is rotatable about a support portion, and the sheet material holding surface of the sheet material affixed on the mount The sheet material holding surface is peeled off from the mount so that the sheet material holding surface moves on the sheet material in synchronism with the winding of the mount in a state of being in contact with one end. To keep And it features.

  The sheet material continuously stuck on the mount is held on its lower surface, and peeled from the mount at the peeling edge position by a sticking head that can move directly between the peeling edge and the object to be stuck, and the sheet In the sheet material sticking apparatus, the sticking head holding the material is moved to the position of the sticking object, and the sheet material held by the sticking head is stuck at a predetermined position of the sticking object. Has a cylindrical side-shaped sheet material holding surface that can be rotated with the support portion as a fulcrum, and moves the sheet material held on the sheet material holding surface to the position to be pasted, The sheet material is aligned, and the sheet material adhered and held on the sheet material holding surface is adhered to the object to be adhered, and the sheet material is moved to peel off the sheet material from the sheet material holding surface, Affix to the surface of the object And wherein the door.

  The sheet material holding surface is preferably formed with an adhesive layer, and the sheet material separated from the adhesive surface is adhesively held.

  Alternatively, it is preferable that the sheet material holding surface is formed with a suction surface in which vacuum suction holes are arranged, and the sheet material separated from the suction surface is suction-held.

  It is preferable that the sticking head is pivotally supported on a support portion of a base that is suspended so as to be lifted and lowered by a linear slide rail provided between the peeling edge and the adherend.

  It is preferable that the sticking head controls an inclination angle at the time of rotation through driving means provided on the base.

  As described above, according to the present invention, in the peeling operation of the sheet material, the sheet material can be peeled off from the mount with high accuracy and accuracy without any misalignment only by simple adjustment of the sheet feed. In the pasting operation, there is an effect that the adhesive sheet material can be pasted with high accuracy so that deformation and bubbles do not occur.

  Hereinafter, as the best mode for carrying out the sheet material sticking apparatus of the present invention, the following embodiments will be described with reference to the accompanying drawings.

  FIG. 1 is a front view showing a configuration of a sheet material pasting apparatus 1 of the present invention. In this sheet material pasting apparatus 1, the pasting head unit 10 is a linear slide rail that can be moved on the linear slide rail 2 partially shown via the slider 3 so that it can be positioned with high accuracy by a stepping motor (not shown). 2 is suspended. On the other hand, a known peeling edge 5 similar to that shown in FIG. At the tip end of the peeling edge 5, a sheet material 7 that is temporarily pasted on the tape-shaped mount 6 continuously at a predetermined interval is fed from a supply reel (see FIG. 5) to a winding-side driving means (see FIG. 5). (Not shown) is supplied at a predetermined timing. After the sheet material 7 is peeled off at the tip of the peeling edge 5, the mount 6 is folded back at an acute angle and wound around a take-up reel 8 that is rotated by a drive motor (not shown). On the other hand, the position and shape of the workpiece 30 and the base 31 on which the workpiece 30 is placed are the same as those in the conventional example of FIG.

  Hereinafter, among the configurations of the sheet material pasting apparatus 1 of the present invention, the configuration of the pasting head unit 10 will be described with reference to FIG. The sticking head unit 10 is integrally suspended by a slider 3 that reciprocates in the direction of the arrow so that it can be positioned with high accuracy on a linear slide rail 2 that is horizontally installed by a control operation by a driving source such as a stepping motor (not shown). A base plate lifting / lowering cylinder 12 suspended vertically by the slider 3, a base plate 11 fixed to the lower end of the cylinder rod 12 a of the base plate lifting / lowering cylinder 12 so as to be horizontal, and a rotation provided on the lower surface of the base plate 11. A sticking head 15 suspended via a suspension rod 14 so as to be rotatable around a dynamic support shaft 13, and attached to the upper surface of the base plate 11 via a rotation support portion 16 so as to be rotatable around the lower end portion. And a pasting head rotating cylinder 17. As shown in FIG. 1, the sticking head rotating cylinder 17 is extended in a state where the tip of the cylinder rod 17 a is pin-coupled to the upper end 15 a of the sticking head 15 and the pressure of the cylinder rod 17 a is released. The sticking head turning cylinder 17 accompanying the operation and the extending action is tilted by the turning support portion 16 so that the turning action of the sticking head 15 is realized.

  Hereinafter, the structure of the sticking head 15 in the sticking head unit 10 will be described in detail. The sticking head 15 is attached to the lower surface of the base plate 11 and is suspended via a suspension rod 19 so as to be rotatable on a rotation support shaft 13 on which a ball bearing is mounted. The shape is a metal or synthetic resin processed product in which the lower surface has an arcuate curved surface with a radius centered on the rotation support portion, and the curved surface extends in the paper surface direction. And the adhesive rubber is stuck on the curved surface, and the sheet material holding surface 20 is formed. The adhesive rubber constituting the sheet material holding surface 20 is fixed to the sticking head 15 with a stronger adhesive on the lower surface side, and in this embodiment, adhesive silicone rubber and urethane rubber are used. As shown in FIGS. 2A and 2B, the adhesive rubber is formed by bringing the sheet material holding surface 20 into contact with the sheet material 7 temporarily attached on the mount 6 at a predetermined position of the peeling edge 5 with a predetermined pressing force. The sheet material 7 can be peeled off from the mount 6 by exerting an adhesive force larger than the adhesive force between the sheet material 7 and the mount 6 and the sheet material 7 can be adhered and held on the sheet material holding surface 20.

[Sheet material peeling operation]
Here, the synchronous peeling adjustment of the peeling operation of the sheet material 7 on the mount 6 accompanying the rotation of the sticking head 15 will be described with reference to each drawing of FIG.
First, in the state where the cylinder rod 12a of the cylinder 12 for raising and lowering the base plate is extended from the initial state shown in FIG. 1 and the base plate 11 and the pasting head 15 are inclined at a predetermined angle, the sheet material holding surface 20 of the pasting head 15 is obtained. And the edge part of the sheet | seat material 7 on the base_sheet | mounting_paper 6 of the peeling edge 5 position is aligned, and it falls to the position which contact | abuts (FIG. 2 (a)). At this time, when the sheet material 7 is a flexible material made of a soft resin, such as a sponge-like cushion material, the application head 15 presses the material and the sheet material 7 is crushed or deformed in the thickness direction. It is preferable to adjust the position of the sticking head 15 so that it does not occur. With the sticking head 15 pressed against the sheet material 7 with a predetermined contact pressure, the pressure applied to the cylinder rod 17a of the sticking head rotating cylinder 17 is released. In this state, the mount winding motor 8 (see FIG. 1) is driven to wind the mount 6 in the direction of the arrow (FIG. 2B). With the winding operation of the mount 6, the sheet material 7 adhered to the sheet material holding surface 20 of the sticking head 15 at the tip end of the peeling edge 5 is synchronized with the mount 6 being folded back at the tip of the peeling edge 5. As shown in FIGS. 2 (b) → (c), the sheet material 7 for one sheet is completely peeled and the sticking head 15 is separated from the peeling edge 5. In the moved state, the mount winding motor 8 (FIG. 1) is stopped.

  In order to return the sticking head 15 from the state shown in FIG. 2C to the state shown in FIG. 2A while being away from the peeling edge 5, a sticking head rotating cylinder is operated by a control operation from a pressure source (not shown). By retracting the 17 cylinder rods 17a, the sticking head 15 can rotate as shown in FIG. 2C → FIG. 2A with the rotation support shaft 13 as the rotation center. Moreover, as a pressure source for the extending | stretching operation | movement of the cylinder rod 17a, what matched the specification (a capacity | capacitance, a rod stroke) of the cylinder rod with which a sticking apparatus is equipped, such as an air pressure source and a hydraulic pressure source, can be used suitably. . In addition, as a driving means for applying a predetermined rotating operation to the sticking head, a rotary motor equipped with a drive transmission mechanism that can realize the same or alternative operation as the cylinder rod may be employed instead of the above-described cylinder rod. it can.

  Hereinafter, a series of steps until the sheet material 7 sucked and held by the sticking head 15 is stuck to a predetermined position on the surface of the work 30 to be stuck will be described with reference to FIGS. . In FIGS. 3 and 4, each cylinder rod is abbreviated in a diagram for simplification of the diagram, and the same reference numerals as those in FIGS. explain.

[Movement operation of the pasting head unit]
As shown in FIG. 2 (c), the cylinder rod 12a of the base plate elevating cylinder 12 is degenerated while the sheet material 7 for one sheet is peeled off and adhered to the sheet material holding surface 20 of the sticking head 15. After raising the sticking head unit 10 to some extent (FIG. 3A), the cylinder rod 17a of the sticking head rotating cylinder 17 is retracted, and the sticking head 15 is returned to the initial state (FIG. 1). In this state, the sticking head unit 10 is moved along the linear slide rail 2 to the upper side of the base 31 on which the workpiece 30 is placed (FIG. 3C). At this time, in this embodiment, since the placement position of the work 30 is input to the control unit in advance, the amount of movement of the slider 3 is set in advance, and moves to a predetermined position above the work 30 with high accuracy. Can do. The moving amount of the slider 3 is detected by using a known position sensor or position detecting means 33 (FIG. 1) such as a CCD camera, and the data is fed back to the control unit of the driving source to feed back the data of the slider 3. It is also possible to control the amount of movement.

[Attaching sheet material to workpiece]
The sticking operation of the sheet material 7 in the state where the sticking head unit 10 is moved to above the work 30 by the movement of the slider 3 (FIG. 3C) will be described with reference to FIG. The cylinder rod 12a of the base plate elevating cylinder 12 of the sticking head unit 10 in the state of FIG. 3C is extended to lower the sticking head unit 10. At this time, as described above, when the sheet material 7 is a thick soft material or the like, the lowering amount (base plate) of the pasting head unit 10 is considered in consideration of the thickness of the workpiece surface 30a and the sheet material 7 and the lowering amount. It is preferable to adjust the extension amount of the cylinder rod of the elevating cylinder 12. At this time, the adhering head unit 10 can be lowered in a state where the end of the sheet material 7 adhered to the sheet material holding surface 20 and the end of the sheet material application position on the work surface 30a are aligned with high accuracy. From this state, in a state where the sheet material 7 adhered to the sheet material holding surface 20 is pressed against the work surface 30a with a predetermined contact pressure, the pressure applied to the cylinder rod 17a of the sticking head rotating cylinder 17 is released. . From this state, the slider 3 on the linear slide rail 2 is moved backward to the peeling edge 5 side. At this time, since the lower surface of the sticking head 15 forms a circular arc having a radius centered on the rotation support shaft 13 (FIG. 4 (d) → FIG. 4 (e)) The sheet material 7 adhered to the sheet material holding surface 20 is pressed against the workpiece surface 30a with a uniform pressing force. At this time, since the adhesive force between the sheet material 7 and the workpiece 30 is stronger than the adhesive force between the sheet material holding surface 20 and the slider 3 is retracted, the sheet material 7 is peeled off from the sheet material holding surface 20, Affixed in close contact so as to be transferred to the workpiece surface 30a by the adhesive force on the lower surface side of the sheet material 7 with a predetermined pressing force. After the sheet material 7 is affixed to the workpiece surface 30a, the cylinder rod 12a of the base plate elevating cylinder 12 is retracted and the affixing head unit 10 is raised. (FIG. 4 (f)). Thereafter, the cylinder rod 17a of the sticking head rotating cylinder 17 is retracted to return the position of the sticking head 15 to the initial state (FIG. 1), and the slider 3 so that the sticking head unit 10 is positioned on the peeling edge 5. The one stroke (one cycle) is completed in a state where the sticking head unit 10 is moved to above the synchronous peeling position of the next stroke.

  In the present embodiment, the sheet material holding surface 20 that forms the arc shape of the sticking head 15 is set to have a radius R with the rotation support shaft 13 as the center, and therefore a slider that suspends the sticking head unit 10. When 3 moved along the linear slide rail 2, the distance between the rotation support shaft 13 and the sheet material holding surface 20 in contact with the workpiece surface 30a was always kept constant. In the case where the sheet material 7 is thick and difficult to bend, it is preferable to form the sheet material holding surface 20 having a large radius and a loose curvature. In that case, the sheet material holding surface is adjusted (adjusted) by adjusting the extension amount of the cylinder rod of the base plate elevating cylinder 12 when the slider 3 moves forward during the peeling operation of the sheet material 7 and when the slider 3 moves backward during the pasting operation of the sheet material 7. 20 and the pressing force of the sheet material 7 affixed to the workpiece surface 30a are preferably constant.

The schematic block diagram which showed the whole structure of the sheet | seat material sticking apparatus of one Example of this invention. Operation | movement explanatory drawing which showed rotation operation | movement (at the time of synchronous peeling) of the sticking head of a sheet material sticking apparatus. Work explanatory drawing which showed the sheet material sticking work procedure by a sheet material sticking apparatus (the 1). Work explanatory drawing which showed the sheet material sticking work procedure by a sheet material sticking apparatus (the 2). The schematic block diagram which showed the whole structure of an example of the conventional sheet material sticking apparatus. Explanatory drawing which showed the positional relationship of the sticking head and sheet | seat material in the peeling edge position in the apparatus shown in FIG. Explanatory drawing which showed the adsorption | suction state of the sheet material by the sticking head in the apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet material sticking apparatus 2 Linear slide rail 3 Slider 5 Peeling edge 6 Mount 7 Sheet material 10 Sticking head unit 12 Base plate raising / lowering cylinder 13 Turning support shaft 15 Sticking head 17 Sticking head turning cylinder 20 Sheet material holding surface 30 Work 31 Base

Claims (6)

The sheet material continuously stuck on the mount is held on its lower surface, and peeled from the mount at the peeling edge position by a sticking head that can move directly between the peeling edge and the object to be stuck, and the sheet In the sheet material affixing device that moves the affixing head holding a material to the position of the object to be adhered, and affixes the sheet material held by the affixing head to a predetermined position of the object to be adhered,
The sticking head has a cylindrical side-like sheet material holding surface that can be rotated with a support portion as a fulcrum, and the sheet material holding surface is in contact with one end of the sheet material stuck on the mount. Synchronously with the winding of the mount, the sheet material holding surface moves on the sheet material, and the sheet material is peeled off from the mount and held on the sheet material holding surface. Sheet material pasting device. The sheet material continuously stuck on the mount is held on its lower surface, and peeled from the mount at the peeling edge position by a sticking head that can move directly between the peeling edge and the object to be stuck, and the sheet In the sheet material affixing device that moves the affixing head holding a material to the position of the object to be adhered, and affixes the sheet material held by the affixing head to a predetermined position of the object to be adhered,
The sticking head has a cylindrical side-shaped sheet material holding surface that can be rotated with a support portion as a fulcrum, and the sheet material held on the sheet material holding surface is moved to the position of the object to be pasted. Positioning the paste and the sheet material, while adhering the sheet material adhered and held on the sheet material holding surface to the object to be adhered, moving and peeling the sheet material from the sheet material holding surface, A sheet material affixing device for affixing to the surface of the object to be adhered.   The sheet material sticking device according to claim 1, wherein the sheet material holding surface is formed with an adhesive layer, and the sheet material separated from the adhesive surface is adhesively held.   The sheet material according to claim 1, wherein the sheet material holding surface is formed with a suction surface in which vacuum suction holes are arranged, and the sheet material separated from the suction surface is suction-held. Pasting device.   The said sticking head is hung so that rotation to the said support part of the base suspended so that raising / lowering was possible was carried out to the linear slide rail erected between the said peeling edge and the said to-be-bonded object. Claim | item 1 or the sheet | seat material sticking apparatus of Claim 2.   6. The sheet material sticking apparatus according to claim 5, wherein the sticking head is capable of controlling an inclination angle at the time of rotation through driving means provided on the base.

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