TWI775071B - Automatic peeling method and device for lower release film of adhesive tape with upper and lower release films - Google Patents

Abstract

The invention provides an automatic peeling method for the lower release film of the adhesive tape attached with the upper and lower release films, which comprises placing the adhesive tape on a film peeling platform, and the two sides of the adhesive tape are respectively attached with an upper release film and a lower release film. Release film, fix one ear part of the two ends of the lower release film on the peeling platform, the ear part is flat and protruding and exposed on one end of the tape, so that the other end of the lower release film forms a free end part, adsorb the adhesive tape in a way of contacting the upper release film in a strip shape, and then move the adhesive tape relatively away from the lower release film, so that the lower release film is gradually separated from the adhesive tape from the ear to the free end, so as to Complete the automatic peeling operation of the lower release film. The present invention also includes an automatic film peeling device for implementing the above method, so as to improve the problem of the technology of automatically peeling the lower release film which is not seen in the conventional technology.

Description

Automatic peeling method and device for lower release film of adhesive tape with upper and lower release films

The present invention relates to the stripping technology of adhesive tape, in particular to an automatic stripping method and device of the lower release film of the adhesive tape attached with the upper and lower release films.

A common tape usually has glue on at least one side on both sides, which is used as an adhesive surface for adhering the tape to the surface of the object, and exposes the other exposed surface of the tape which is not glued. It is also known that the manufacturer of the adhesive tape will at least cover the adhesive surface of the adhesive tape with a release film to protect the adhesive surface. In addition, in particular, in order to protect the revealing surface of the adhesive tape, some manufacturers also add a small amount of adhesive to the revealing surface of the adhesive tape, and attach another layer of release film to protect the revealing surface.

It can be seen from this that the tape for single-sided sticking on the surface of the object is provided. After the production and delivery, there are actually two sides of the tape in which an upper release film and a lower release film are respectively attached (as shown in Figure 1). wherein, the upper release film 13a is used to protect the exposed surface 11a of the adhesive tape 10a, and the lower release film 14a is used to protect the adhesive surface 12a of the adhesive tape 10a.

Since the amount of glue on the revealing surface 11a of the adhesive tape 10a is much lower than that on the sticking surface 12a, for the upper release film 13a and the lower release film 14a on both sides of the adhesive tape 10a, the adhesive force of the upper release film 13a is much smaller than that of the upper release film 13a. The lower release film 14a, and therefore, the user end needs a relatively small force when peeling off the upper release film 13a of the tape 10a, and a relatively large force when peeling off the lower release film 14a of the tape 10a.

These issues related to the adhesion of the upper release film 13a and the lower release film 14a do not need to be paid much attention in the operation of traditional manual film stripping at the user end, but for automatic stripping using mechanical equipment at the user end During the film operation, it will have a great impact on the yield rate of automatic film peeling and the automatic process of sticking the tape, and it is known that the tape 10a is covered with release films with different adhesion on both sides. However, there is still no related technology for automatic film stripping, so it needs to be improved.

In view of this, the purpose of the present invention is to aim at the two sides of the adhesive tape with the upper and lower release films of different adhesion respectively, and the problem of automatic film stripping technology has not yet been seen in the traditional technology, and a way to improve and improve is proposed. . More specifically, the present invention provides a technology for automatic peeling of the lower release film of the adhesive tape under the condition that the upper release film is still intactly attached to the exposed surface of the adhesive tape (ie, has not been peeled off).

To this end, the present invention provides an automatic peeling method for a lower release film with an adhesive tape attached to an upper and lower release film, comprising the steps of: S1: cutting the tape into strips and placing it on a film peeling platform , the tape has a revealing surface and an adhesive surface, the revealing surface is attached with an upper release film, the adhesive surface is attached with a lower release film, and the adhesion of the lower release film attached to the adhesive tape is greater than that of the upper release film. Release film; S2: fix an ear part in both ends of the lower release film, the ear part is flat and protruding and exposed at one end of the tape and fixed on the peeling film platform, so that the two ends of the lower release film are A free end relative to the ear is formed in the middle; S3: the adhesive tape is adsorbed in the manner of contacting the upper release film in a strip shape, and then the adhesive tape attached with the upper release film is moved relatively away from the lower release film, The lower release film is gradually separated from the adhesive surface of the adhesive tape from the ear to the free end, so as to complete the automatic peeling operation of the lower release film.

In order to implement the above method, another preferred embodiment of the present invention provides an automatic film stripping device for the lower release film of the adhesive tape with the upper and lower release films, comprising: an adhesive tape jig; On the side of a film stripping platform, the tape fixture is used for placing a plurality of tapes in strips and overlapping each other, each tape has a revealing surface and an adhesive surface, and the revealing surface is attached with an upper release The adhesive surface is attached with a lower release film, and the adhesion of the lower release film on the tape is greater than that of the upper release film; a reclaimer is arranged on the tape fixture and the peeling film platform Above the tape, the tape in the tape jig is captured by suction and transferred to the film stripping platform for placement; and a film stripper is arranged above the film stripping platform and contacts the surface of the upper release film in a strip shape. The adhesive tape is adsorbed in a way to move the adhesive tape attached with the upper release film relatively away from the lower release film; wherein, a positioner is arranged on the film stripping platform to fix the lower release film. An ear part in the two ends of the release film, the ear part is flat and protruding from one end of the adhesive tape to receive the positioning device and fix it, and form an unfixed free space in the two ends of the lower release film end; when the stripper moves the tape relatively away from the lower release film, the lower release film gradually separates from the adhesive surface of the tape from the ear to the free end to complete the automatic peeling operation of the lower release film.

In a further implementation, the tape fixture includes a base and a plurality of uprights, and the tape is positioned on the base by being restrained by the plurality of uprights. One side of the base is provided with a handle.

In a further implementation, the reclaimer is slidably arranged on a horizontal sliding rail, and the reclaimer is driven by the horizontal sliding rail to reciprocate between the tape jig and the film stripping platform in a horizontal direction. A vertical driver is also arranged between the reclaimer and the horizontal slide rail, and the reclaimer is driven by the vertical driver to approach or move away from the tape jig and the film stripping platform in the vertical direction.

In a further implementation, the film stripper is assembled on a mechanical arm, and the film stripper is displaced by being driven by the mechanical arm.

In a further implementation, a film tearing wheel is disposed above the positioner, and the tearing film wheel is displaced from the ear portion toward the free end portion to push the lower release film so that the lower release film gradually separates from the adhesive tape .

According to the above technical means, the advantage of the present invention is that the lower release film on the tape is peeled off first and the upper release film on the tape is retained, which is helpful for automatically attaching the tape to the surface of the object by using the upper release film. A film is formed to protect the exposed surface of the tape from contamination or impact in the working environment.

The technical means of the above-mentioned methods and apparatuses and the specific implementation details of their performances are described with reference to the following embodiments and drawings.

10a, 10b: Tape

11a, 11b: Reveal face

12a, 12b: Adhesive surface

13a, 13b: upper release film

14a, 14b: lower release film

141: Ears

142: Free end

143: Flip side

20: Stripping platform

21: Positioning slot

30: Tape fixture

31: Base

32: Column

33: Grip

40: Reclaimer

41: Horizontal slide rail

42: Vertical Drive

50: Stripper

51: Suction surface

52: Negative pressure tube

60: Locator

61: clip

70: tear film wheel

80: Frame

θ 1: The first tilt angle

θ 2: Second tilt angle

S1 to S3: step description of the embodiment

FIG. 1 is a schematic perspective view of an adhesive tape with release paper attached on both sides.

Fig. 2 is a flow chart of the steps of the automatic peeling method of the present invention.

FIG. 3a to FIG. 3e are schematic diagrams of actions for executing the method of FIG. 2, respectively.

FIG. 4 is a schematic perspective view of the automatic film stripping device of the present invention.

5 and 6 are partial enlarged views of FIG. 4 , respectively.

FIG. 7 is a front view of FIG. 4 .

FIG. 8 is a side view of FIG. 4 .

9a to 9h are respectively schematic diagrams of the operation of the automatic film stripping device of the present invention.

Please refer to FIG. 2, illustrating the automatic peeling method of the lower release film of the adhesive tape with the upper and lower release films provided by the present invention, including the following steps S1 to S3 in sequence:

Step S1: Lay out the tape.

Referring to FIG. 3a , the tape 10b is cut into strips so that the shape of the tape 10b can conform to the surface of the object to be pasted, which in the present invention refers to the edge of the panel. The adhesive tape 10b has a revealing surface 11b and an adhering surface 12b. The adhesive tape 10b is adhered to the surface of the object through the adhering surface 12b, and is exposed to the outside through the revealing surface 11b. An upper release film 13b is attached to the revealing surface 11b, and a lower release film 14b is attached to the sticking surface 12b. The amount of adhesive on the revealing surface 11b of the tape 10b is much lower than that of the sticking surface 12b, so that the lower release film 14b is attached. The adhesion of 14b to the adhesive tape 10b is greater than that of the upper release film 13b. Further, an ear portion 141 is formed in both ends of the lower release film 14b, and the ear portion 141 is flat and protruded from one end of the adhesive tape 10b, so that the lower release film 14b can receive mechanical equipment through the ear portion 141 capture. In a specific implementation, the adhesive tape 10b is placed on a film peeling platform 20, and the lower release film 14b is contacted with the peeling platform 20. The adhesive tape 10b and the lower release film 14b attached to the adhesive tape 10b are in a flat shape, so as to facilitate the retrieval of mechanical equipment.

Step S2: fixing the lower release film.

Please refer to FIG. 3b , which illustrates that one end of the lower release film 14b (ie, the ear portion 141 ) is fixed on the peeling platform 20 , so that the other end of the lower release film 14b forms a free end relative to the ear portion 141 . 142. Therefore, when the tape 10b is relatively far away from the film stripping platform 20, since the ear portion 141 is fixed on the film stripping platform 20 and does not move, and the self- The end portion 142 follows the movement of the tape 10b, thereby enabling the lower release film 14b to gradually separate from the tape 10b.

Step S3: Move the tape away from the lower release film.

Please refer to FIG. 3c to FIG. 3e in sequence, illustrating that the adhesive tape 10b is adsorbed by a stripper 50 in a planar contact with the upper release film 13b (as shown in FIG. 3c ), and then, the stripper 50 is moved away from the stripper The film platform 20 then drives the adhesive tape 10b to move accordingly. Since the ear portion 141 of the lower release film 14b is fixed on the film stripping platform 20, the lower release film 14b is gradually separated from the adhesive tape 10b from the ear portion 141 to the free end portion 142. Finally, the lower release film 14b is completely separated from the adhesive surface 12b of the adhesive tape 10b (as shown in FIG. 3e ), thereby completing the automatic peeling operation of the lower release film 14b.

The technical feature of the present invention is that one end of the lower release film 14b is fixed (the other end is free), and the lower release film 14b can gradually and stably be contacted with the upper release film 13b in a strip shape to absorb the entire adhesive tape 10b. The adhesive surface 12b of the adhesive tape 10b is separated to achieve the flexibility of mechanical automatic film peeling, so as to improve the yield of automatic film peeling.

On the other hand, please refer to FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , and FIG. 8 together to illustrate that the present invention also provides an automatic film stripping device to make the lower release film of the adhesive tape with the upper and lower release films attached. The automatic peeling method can be easily implemented. It can be seen from the above that the automatic film stripping device includes a tape jig 30 , a reclaimer 40 and a film stripper 50 . in:

The tape jig 30 is disposed on a frame 80 and is located at the side of a film stripping platform 20 , and the tape jig 30 is used for placing a plurality of tapes 10b in strips and overlapping each other. Further, the adhesive tape fixture 30 includes a base 31 on which a plurality of uprights 32 are assembled, and the adhesive tape 10b is positioned on the base 31 through the restraint of the uprights 32; one side of the base 31 A handle 33 is provided, so that the user end can take out the tape jig 30 from the frame 80 or put it into the frame 80 by holding the handle 33 . In addition, a positioning groove 21 is formed on the film stripping platform 20 , and the adhesive tape 10 b is positioned on the film stripping platform 20 by being restrained by the positioning groove 21 .

The reclaimer 40 is arranged on the tape jig 30 and the film stripping platform 20 Above, the reclaimer 40 can move back and forth between the tape jig 30 and the film stripping platform 20 , and capture the tape 10b in the tape jig 30 by means of negative pressure adsorption and move it to the film stripping platform 20 for placement . Further, in practice, the reclaimer 40 is slid on a horizontal slide rail 41 , and the horizontal slide rail 41 is fixed on the frame 80 and located above the tape fixture 30 and the film stripping platform 20 . , the reclaimer 40 can reciprocate between the tape fixture 30 and the film stripping platform 20 in the horizontal direction through the drive of the horizontal slide rail 41; The vertical drive 42, the reclaimer 40 can approach or move away from the tape fixture 30 and the peeling platform 20 in the vertical direction through the drive of the vertical drive 42, and the vertical drive 42 is a pneumatic cylinder in implementation.

The film stripper 50 is disposed above the film stripping platform 20 . The film stripper 50 has a suction surface 51 , the suction surface 51 is a plane, and a plurality of negative pressure suction surfaces are formed on the suction surface 51 . A hole (not shown) is connected to the negative pressure pipe 52 through the negative pressure suction hole, so that the negative pressure suction hole generates suction, thereby enabling the stripper 50 to absorb the tape in a surface-like contact with the upper release film 13b 10b. Further, in practice, the film stripper 50 is assembled on a mechanical arm (not shown), so that the film stripper 50 can be driven by the mechanical arm to approach or be far away from the film stripping platform 20, thereby adsorbing and peeling the film. Tape 10b on membrane platform 20.

The film stripping platform 20 is also provided with a positioner 60 for fixing the ear portion 141 of the lower release film 14b so as to facilitate the release of the lower release film 14b from the adhesive tape 10b. Further, the positioner 60 has a jaw 61, the positioner 60 can open the jaw 61 to insert or release the ear portion 141 of the lower release film 14b, and close the jaw 61 to clamp the lower release film 14b ear 141.

The automatic film peeling device of the present invention also includes a film tearing wheel 70, which is slidably arranged above the positioner 60, and the film tearing wheel 70 can move in the horizontal direction; one end of the lower release film 14b receives the positioner 60 When the other end is attached to the adhesive surface 12b of the adhesive tape 10b, the lower release film 14b can be pushed by the film pushing wheel 70 moving in the horizontal direction, so that the lower release film 14b can be separated from the adhesive surface 12b of the adhesive tape 10b.

According to the above configuration, please continue to refer to FIG. 9a to FIG. 9h, which are disclosed in sequence The action explanatory diagram of the present invention illustrates that after the reclaimer 40 captures the tape 10b in the tape fixture 30, the reclaimer 40 moves to the peeling platform 20, and the tape 10b is placed on the peeling platform 20 (eg Next, the positioning device 60 on the peeling platform 20 fixes the ear portion 141 of the lower release film 14b (as shown in Fig. 9b ), so that the other end of the lower release film 14b forms an opposite ear portion The free end 142 of 141; then, the film stripper 50 moves to the film stripping platform 20 to absorb the tape 10b (as shown in FIG. 9c ); On the platform 20 (as shown in FIG. 9d ), the adhesive tape 10b with the upper release film 13b is relatively far away from the ear portion 141 , so that the lower release film 14b is adjacent to the ear portion 141 to form an adhesive surface that has been partially released from the adhesive tape 10b The flipped surface 143 of the The film holder 50 moves toward the ear portion 141 in a direction parallel to the film stripping platform 20 (as shown in FIG. 9e ), so that a flip surface 143 is formed between the ear portion 141 and the free end portion 142 of the lower release film 14b, and the A second flip angle θ 2 (shown in FIG. 9e ) is formed between the flip surface 143 and the free end portion 142 , which is greater than 0 degrees and less than 90 degrees; then the film stripper 50 is perpendicular to the film stripping platform. Move the tape 10b attached with the upper release film away from the film peeling platform 20 in the direction of When the direction perpendicular to the film peeling platform 20 is away from the film peeling platform 20 (as shown in FIG. 9f ), there is enough space between the film peeler 50 and the film peeling platform 20 to provide the peeling wheel 70 to pass through; the film pushing wheel 70 Move in the horizontal direction (as shown in FIG. 9g ), and then push and touch the flip surface 143 of the lower release film 14b, and finally make the lower release film 14b completely detach from the tape 10b (as shown in FIG. 9h ), and then complete the lower release film 14b Automatic peeling operation of the film 14b.

The above embodiments are only preferred embodiments of the present invention, but should not be construed as limiting the scope of the present invention. Therefore, the present invention should be subject to the content of the claims defined in the scope of the patent application.

S1 to S3: step description of the embodiment

Claims (8)

An automatic peeling method for a lower release film with an adhesive tape attached to an upper and lower release film, comprising the steps of: S1: cutting the adhesive tape into strips and placing it on a film peeling platform, the adhesive tape having a revealing surface and an adhesive surface, an upper release film is attached to the revealing surface, a lower release film is attached to the adhesive surface, and the adhesive force of the lower release film attached to the tape is greater than that of the upper release film; S2: fixed An ear part in the two ends of the lower release film, the ear part is flat and protruding from one end of the tape and is fixed on the peeling film platform, so that an opposite ear part is formed in the two ends of the lower release film S3: Adsorb the adhesive tape in a way of contacting the upper release film in a strip shape, and move the adhesive tape attached with the upper release film upwards relatively away from the ear, so that the lower release film is adjacent The position of the ear portion forms a flip surface that has been partially separated from the adhesive surface of the tape, so that a first flip angle greater than 90 degrees and less than 180 degrees is formed between the flip surface and the free end, and then along the direction parallel to the peeling surface. The film platform moves the adhesive tape attached with the upper release film toward the ear, so that a second flip angle greater than 0 degrees and less than 90 degrees is formed between the flip surface and the free end, and then Move the adhesive tape attached with the upper release film away from the film release platform along the direction perpendicular to the film stripping platform, so that the lower release film is gradually separated from the adhesive surface of the adhesive tape from the ear to the free end to complete the lower release film. Automatic stripping operation of formed film. An automatic film stripping device applied to the automatic stripping method described in claim 1, comprising: a tape jig, disposed on the side of the film stripping platform, and providing a plurality of said tape pendulums in strip shape and overlapping each other put; a reclaimer, disposed above the adhesive tape fixture and the film stripping platform, is used to capture the adhesive tape in the adhesive tape fixture by adsorption, and transfer the adhesive tape to the film stripping platform for placement; and a stripping film The device is arranged above the film stripping platform to contact the The adhesive tape is adsorbed by means of the upper release film, and the adhesive tape attached with the upper release film is moved relatively away from the lower release film; wherein, a positioner for fixing the ear portion is arranged on the film peeling platform. The automatic film stripping device according to claim 2, wherein the tape fixture comprises a base and a plurality of uprights, and the tape is positioned on the base by being restrained by the plurality of uprights. The automatic film stripping device according to claim 3, wherein a handle is provided on one side of the base. The automatic film stripping device according to claim 2, wherein the reclaimer is slidably arranged on a horizontal slide rail, and the reclaimer is driven by the horizontal slide rail to move between the tape jig and the stripper in the horizontal direction. Reciprocating movement between membrane platforms. The automatic film stripping device according to claim 5, wherein a vertical driver is further provided between the reclaimer and the horizontal sliding rail, and the reclaimer is driven by the vertical driver to approach or move away from the vertical direction in the vertical direction. Tape fixture and the peeling platform. The automatic film stripping device according to claim 2, wherein the film stripper is assembled on a mechanical arm, and the film stripper is displaced by being driven by the mechanical arm. The automatic film peeling device according to claim 2, wherein a film tearing wheel is disposed above the positioner, and the tearing film wheel is displaced from the ear portion to the direction of the free end portion to push the lower release film and cause the lower film to be removed. The release film gradually detaches from the tape.

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