JPH03205264A - Automatic sticking device for double coated adhesive tape - Google Patents

Abstract

PURPOSE:To surely attach an adhesive surface over the whole surface even if an attached surface is curved by attaching an adhesive layer which is cut to a prescribed length, revolving a sticking objective article and pressing the adhesive layer on the whole surface with sufficient pressure by a pressing device having a pressing surface made of a low adhesive substance. CONSTITUTION:A pressing pad 10 lowers, and a double coated adhesive tape 8 is pressed on a sticking objective article 16 at a prescribed position. At this time, an adhesive layer 8b contacts the objective article 16 by being pressed through the pad 10 from a mold separating paper 8a side. When the pad 10 rises, the mold separating paper 8a is raised, together with the pad 10, by tension, and only the cut adhesive layer 8b is attached on the objective article 16. When an actuator 21 revolves a driving shaft 21a, a transmission shaft 22 revolves integrally, and a rotary shaft 17 revolves, and also the objective article 16 revolves integrally. When the objective article 16 turns by a prescribed angle, the actuator 21 stops, and revolution is suspended. Then, the adhesive layer 8b of the objective article 16 is pressed by a driving means, and a pressing surface 28c is formed to a curved surface corresponding to the objective article 16, and since the pressing part 28b presses the objective article with elasticity, the adhesive layer 8b is surely attached on the objective article.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic application device for double-sided tape.

[Prior Art] As an apparatus for attaching only the adhesive layer of a double-sided tape, in which an adhesive layer is removably attached to one side of release paper, to an object to be attached,
The present applicant has proposed ``Automatic cutting and pasting device for double-sided tape'' in Japanese Patent Application No. 63-174434. This pasting device is
The release paper is advanced through a predetermined path from a holding roll that holds a roll of double-sided tape, and in the middle of this path, only the adhesive layer of the double-sided tape is cut to a predetermined length to remove the adhesive. Only the layer has cut grooves at predetermined intervals, and then the release paper side is pressed against the object with a pressure pad, and when the release paper is pulled up, only the cut adhesive layer is affixed to the object. It was something that could be worn.

Then, only the remaining release paper was wound up with a take-up roll.

[Problems to be Solved] According to the above-mentioned conventional device, when the surface of the object to be pasted is flat, the adhesive layer can be reliably pasted, but it is difficult to stick the adhesive layer to a curved surface. Ta.

Even if the pressing surface of the pressing pad is curved to correspond to the surface to which it is applied, there is a risk that the corners of the adhesive layer will peel off when the release paper is pulled up. It has been difficult to prevent the corners of the adhesive layer from turning up due to the adhesive strength between the release paper and the adhesive layer and the fact that the release paper is partially bent due to the curved surface to which it is applied.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic double-sided tape application device that can reliably apply an adhesive layer to the entire surface of an object, even if the surface to which it is applied is a curved surface.

[Means for Solving the Problems] The automatic double-sided tape applying device according to the present invention is characterized in that an adhesive layer is removably adhered to one side of a release paper, and only the adhesive layer is cut in advance to a predetermined length. A pasting device that affixes only the cut adhesive layer to the target object by pressing the double-sided tape on the target object from the release paper side, and a pasting device that affixes only the cut adhesive layer to the target object by pressing the double-sided tape from the release paper side to the target object. It is equipped with a rotation device that rotates the angle, and a pressing device that presses the adhesive layer with sufficient pressure over the entire surface after the object to be pasted is rotated, and whose pressing surface is made of a low-adhesive substance. It's there.

[Function] According to the present invention, even if the corners of the adhesive layer are peeled off from the object to be applied, as in the conventional case, the adhesive layer is reliably adhered over the entire surface by being pressed by the pressing device. Since the pressing surface of this pressing device is formed of a low-adhesive material, there is no fear that the adhesive layer will adhere to the pressing surface.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the double-sided tape automatic pasting device according to the present invention includes a pasting device 1, a rotating device 2, a pressing device 3,
It is composed of a base 4 that supports them.

The pasting device 1 is similar to the device disclosed in Japanese Patent Application No. 174434/1988 entitled ``Automatic cutting and pasting device for double-sided tape''. That is, a holding roll 6 and a winding roll 7 are rotatably provided on a substrate 5 that stands on a base 4. The double-sided tape 8 is wound into a roll and held on the outer periphery of the holding roll 6.

The double-sided tape 8 pulled out from the outer periphery of the holding roll 6 is
Guide roller 9 a + 9 b 19 c, 9
It is guided by d and 9e, passes through a predetermined path, and is wound onto the winding opening roll 7. The take-up roll 7 is driven to rotate with a constant torque, and when the take-up roll is driven to rotate, the double-sided tape 8 is sequentially pulled out from the outer periphery of the holding roll 6.

As shown in FIG. 3, the double-sided tape 8 has an adhesive layer 8b removably adhered to one side of a release paper 8a, and cut grooves are cut into only the adhesive layer 8b at predetermined intervals using a cutting means (not shown). 8C is carved, and the adhesive layer 8b is cut into a predetermined length. After being cut, the double-sided tape 8 travels along a predetermined path, and in the middle of the path, the release paper 8a hits the pressure pad 10.
The sides are touching. In this embodiment, the pressure pads, , and 1
0 is located between guide rollers 9C and 9d, and can be moved forward and backward relative to the double-sided tape 8 in contact with it by a driving means (not shown).

Next, the rotating device 2 will be explained with reference to FIG. A substrate 11 is provided in front of the pasting device 1, and a support portion 12, a first intermediate plate 13, and a second intermediate plate 14 are mounted on this substrate 11.
, side plates 15 are provided, respectively. An object to be pasted 16 is rotatably supported by the support portion 12 . The rotating shaft 17 extends through the first intermediate plate 13 and the second intermediate plate 14, and is slidable and rotatable. In the gap between the first intermediate plate 13 and the second intermediate plate 14, the rotating shaft 17
A gear 18 is fixed to the. The gear 18 has a long shape in the longitudinal direction, and a spring 19 is wound around the rotating shaft 17 in the gap between the gear 18 and the first intermediate plate 13. 1st
The end 17a of the rotating shaft 17 protruding from the middle plate 13 can be fitted into the hole 16a of the object to be pasted 16, and has anti-slip measures such as a rubber sheet fixed to the outer periphery. be. A cylinder 2o is attached to the side plate 15, and a cylinder shaft 20a that protrudes through the side plate 15,
It is in contact with the other end 17b of the rotating shaft 17.

On the side of the cylinder 20, the actuator 21 is connected to the side plate 1.
The drive shaft 21 a passes through the side plate 15 and is joined to the transmission shaft 22 by a joint 23 . The transmission shaft 22 passes through the second intermediate plate 14 and is rotatably supported by the first intermediate plate 13 . and transmission shaft 22
A transmission gear 24 , which is fixedly attached to the transmission gear 24 , meshes with the gear 18 .

Next, the pressing device 3 will be explained. Base plate 25 on base 4
A pedestal 26 is provided. A pressing member 28 is fixed to a shaft 27 that penetrates the base 26 and projects upward, and is moved up and down by a drive means (not shown). As shown in FIG. 3, the pressing member 28 consists of a main body 28a made of plastic or the like and a pressing part 28b made of an elastic member such as rubber.The pressing part 28b is made of a low adhesive material such as a Teflon sheet. A pressing surface 28c is formed by being fixed. And this pressing surface 28c
is formed to have a shape corresponding to the surface to be pasted of the object 16 to be pasted.

A double-sided tape pasting operation using the double-sided tape automatic pasting apparatus configured as above will be explained below.

First, the cylinder 2o of the rotating device 2 is activated, the cylinder shaft 20a presses the rotating shaft 17, and the rotating shaft 17 moves to the left in FIG. It fits into the hole 16a. Since the outer periphery of the end portion 17a is anti-slip treated, the object 16 to be pasted
is non-rotatably supported by the end portion 17a and the support portion 12.

On the other hand, in the pasting device 1, the double-sided tape 8 pulled out from the holding roll 6 is cut into a predetermined length by a cutting means (not shown) with only the adhesive layer 8b cut into a predetermined length (as shown in the fourth figure), and the pressure pad 1o Proceed to the position where it comes into contact with. Then, the pressure pad 10 is lowered, and the double-sided tape 8 is pressed against the target object 16 held in a predetermined position. At this time, as shown in Figure 5, the release paper 8 of the double-sided tape 8
Pressed from the a side via the pressure pad 10, the adhesive layer 8b
is in contact with the pasting object 16. When the pressure pad 10 is lifted, as shown in FIG. 6, the release paper 8a also rises together with the pressure pad 1o due to tension, and only the cut adhesive layer 8a is stuck to the object 16. Ru. At this time, it is difficult to reliably adhere the entire surface of the adhesive layer 8a, and as shown in FIG. The drive shaft 21a rotates. Then, the transmission shaft 22 rotates integrally via the joint 23. Then, the rotational motion is transmitted from the transmission gear 24 fixed to the transmission shaft 22 to the gear 18,
The rotating shaft 17 rotates. Since the end portion 17a of the rotating shaft 17 is anti-slip treated, the object 16 to be pasted also rotates integrally with the six portions 16a without slipping. Then, when the attachment target 16 rotates by a predetermined angle (180 degrees in this embodiment), the actuator 21 stops and the rotation stops.

When the rotation of the object 16 to be pasted stops in this manner, a driving means (not shown) is activated, and the pressure-sensitive adhesive layer 8b stuck to the object 16 to be pasted is pressed by the pressing member 28. Pressing surface 28
c is formed on a curved surface corresponding to the surface to be pasted of the object to be pasted 16, and the pressing portion 28b presses with elasticity, so that the adhesive layer 8b is pressed with sufficient pressure over the entire surface, and is securely attached to the object to be pasted. Glue to. Thereafter, the pressing member 28 is moved downward away from the object 16 to be pasted by the driving means. Since the pressing surface 28c is formed of a material with low adhesiveness, there is no fear that the adhesive layer 8b will stick to it. Therefore, the adhesive layer 8b is reliably adhered to the object to be pasted over the entire surface.

When these operations are completed, the cylinder 20 stops and the cylinder shaft 20a retracts, and the rotating shaft 17 moves to the right in FIG. 2 due to the restoring force of the spring 19, and the end 17a escapes from the hole 16a. . Then, the pasting object 16 becomes removable.

Through the above steps, the automatic application of double-sided tape is completed. In addition, in order to perform a series of operations smoothly, the advancing speed of the double-sided tape 8, the cylinder 20, the actuator 2
1. Pressure pad 10. The timing of the operation of the pressing member 28 and the like are set as appropriate.

Further, the detailed configuration is not limited to this embodiment. For example, an elastic belt-like member is provided as a pressing device, the object to be pasted is pressed against this belt, and the adhesive layer is applied to the object to be pasted by the tension of the belt. It can also be configured to press against an object.

The pressing surface of the pressing pad 10 is not limited to the shape corresponding to the object to be pasted 16, and may be a flat surface.

The present invention has the greatest effect when the surface to be pasted of the object to be pasted is a curved surface, but even when the surface to be pasted is flat, the adhesive layer can be more reliably pasted and is effective. It is.

Effect C As described above, according to the present invention, the adhesive layer of the double-sided tape can be reliably attached to the object to be attached over the entire surface,
Furthermore, since the structure is simple, it can be easily added to existing double-sided tape automatic cutting and pasting devices.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged perspective view of the main part thereof, and FIG. 3 is a partially enlarged view showing a pressing member.
FIG. 4 is an enlarged view of the double-sided tape, FIGS. 5 and 6 are cross-sectional views illustrating the process of attaching the double-sided tape to an object, and FIG. 7 is an enlarged cross-sectional view taken along the line A--A in FIG. 6. 1... Sticking device, 2... Rotating device, 3... Pressing device, 8... Double-sided tape, 8a... Release paper,
8b... Adhesive layer, 16... Pasting object, 28c...
Pressure surface. Above 8...Front side〒-A16...Kaitei 71 Illusion 4 Figure 28c...: Mr. PP's Figure 6 7 Figure 16...Bashing 77 Genuine

Claims (3)

[Claims] (1) A double-sided tape with an adhesive layer removably attached to one side of release paper and only the adhesive layer cut into a predetermined length is pressed onto the object from the release paper side. a sticking device that sticks only the cut adhesive layer to the object to be pasted; a rotation device that rotates the object to be pasted by a predetermined angle after the adhesive layer is pasted; An automatic double-sided tape, characterized in that it is equipped with a pressing device that presses the adhesive layer with sufficient pressure over the entire surface after the object is rotated, and the pressing surface is made of a material with low adhesiveness. Pasting device. (2) The double-sided tape automatic pasting device according to claim 1, wherein the object to be pasted has a curved surface on which the adhesive layer is pasted. (3) The double-sided tape automatic pasting device according to claim 2, wherein the pressing surface is formed into a curved surface corresponding to the curved surface of the pasting object.