TWI772791B - Automatic peeling method and device for upper release film of adhesive tape with upper and lower release films - Google Patents

Abstract

The invention provides an automatic peeling method of the upper release film of the adhesive tape 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. The release film is provided with an ear part and a sticking part at both ends of the upper release film, and the adhesive tape on the film stripping platform is fixed to provide an adsorption force to adsorb the ear part of the upper release film in a single-point manner, and then Move the upper release film relatively away from the revealing surface of the adhesive tape, so that the upper releasing film is gradually separated from the revealing surface of the adhesive tape from the ear to the sticking portion, so as to complete the automatic peeling operation of the upper releasing 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 off the upper release film which is not seen in the conventional technology.

Description

Automatic peeling method and device for upper 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 upper 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, in the present invention, especially under the condition that the lower release film is still intactly attached to the adhesive surface of the tape (that is, it has not been peeled off), the present invention is directed to the upper release film that has been attached to the revealing surface of the tape, Technology for automatic peeling.

To this end, the present invention provides an automatic peeling method for an upper 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, and both ends of the upper release film have an ear portion and a sticking portion respectively, and the ear portion is flat and protruding and exposed at one end of the adhesive tape; S2: Fix the adhesive tape on the film peeling platform, especially with Adsorbing the whole of the adhesive tape by contacting the release film under the adhesive tape in the form of a strip, so that the whole of the adhesive tape is fixed on the film stripping platform; S3: Provide an adsorption force to adsorb the upper release film in a single-point manner. the ear part, and then move the upper release film relatively away from the revealing surface of the tape, so that the upper release film gradually separates from the revealing surface of the adhesive tape from the ear part toward the sticking part, so as to complete the automatic peeling operation of the upper release film.

In a further implementation, the adsorption force is suspended to adsorb the ear portion of the upper release film.

In order to implement the above method, another preferred embodiment of the present invention is to provide an automatic film stripping device for the upper release film of the adhesive tape with the upper and lower release films, comprising: an adhesive tape fixture; 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 to suck The tape in the tape jig is captured and transferred to the film stripping platform for fixing by means of attachment; Move the upper release film relatively away from the revealing surface of the adhesive tape; wherein, a surface-shaped adsorber is arranged on the film stripping platform, and the adsorber adsorbs the adhesive tape in a way that the surface-shaped contacting the release film under the adhesive tape The whole of the adhesive tape is then fixed on the film stripping platform; when the film stripper moves the upper release film relatively away from the revealing surface, the upper release film is gradually separated from the adhesive tape from the ear to the sticking part. to complete the automatic peeling operation of the upper 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 sucks the ear portion of the upper release film in a single-point manner through a suction nozzle.

In a further implementation, a film peeling wheel is disposed between the film peeling platform and the film peeler, and the film peeling wheel is displaced from the ear portion toward the sticking portion to push the upper release film to make the upper release film The film gradually detaches from the tape.

According to the above technical means, the advantages of the present invention are: before peeling off the lower release film on the tape (not the focus of the present invention), the upper release film on the tape is peeled off, which is helpful for automatically attaching the tape to the object. The unfavorably bent upper release film on the tape has been removed beforehand, so that the tape can be more easily attached to objects with curved surfaces.

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

131: Ears

132: Paste Department

133: Flip side

14a, 14b: lower release film

20: Stripping platform

21: Adsorber

30: Tape fixture

31: Base

32: Column

33: Grip

40: Reclaimer

41: Horizontal slide rail

42: Vertical Drive

50: Stripper

51: The first horizontal drive

52: Second horizontal drive

53: Lifting drive

54: Nozzle

60: tear film wheel

70: 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.

3a to 3d 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 upper 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.

Please refer to FIG. 3a, which illustrates that the tape 10b is cut into strips, so that the tape 10b has a front end and a rear end, and the shape of the tape 10b can conform to the surface of the object to be pasted, which is the surface of the object 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, both ends of the upper release film 13b have an ear portion 131 and a sticking portion 132 respectively. The ear portion 131 is flat and protrudes from one end of the tape, so that the upper release film 13b can pass through the ear portion 131. Accept the retrieval of mechanical equipment. 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 upper release film 13b attached to the adhesive tape 10b are in a flat shape, so as to facilitate the retrieval of mechanical equipment.

Step S2: Fix the tape.

Referring to FIG. 3 a again, it is explained that the peeling platform 20 fixes the entirety of the tape 10b by adsorbing the lower release film 14b under negative pressure, so that the tape 10b is fixed on the peeling platform 20 .

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

Please refer to FIG. 3b to FIG. 3d in sequence, illustrating the use of an adsorption force to adsorb the ears 131 of the upper release film 13b in a single-point manner (as shown in FIG. 3b ), and the adsorption force is implemented by a film stripper 50 Provided. Next, the film stripper 50 is moved in a direction relatively away from the revealing surface 11b of the adhesive tape 10b (as shown in FIG. 3c ), thereby driving the upper release film 13b away from the revealing surface 11b of the adhesive tape 10b. Finally, the upper release film 13b is completely separated from the revealing surface 11b of the adhesive tape 10b (as shown in FIG. 3d ), thereby completing the automatic peeling operation of the upper release film 13b.

In a specific implementation, the film stripper 50 is suspended to adsorb the ear portion 131 of the upper release film 13b. The film holder 50 applies an adsorption force to the ear portion 131 of the upper release film 13b in a space, so that the ear portion 131 of the upper release film 13b is deflected and contacts the film stripper 50 and is fixed to the film stripper 50 by the adsorption force. superior.

The technical feature of the present invention is that the material of the release film 13b is relatively harder than the adhesive tape 10b, which is not conducive to the subsequent sticking on objects with curved surfaces, and the adhesion of the release film 13b on the adhesive tape 10b. The congenital condition of the lower release film 14b is smaller than that of the lower release film 14b, and the upper release film 13b on the tape 10b is peeled off first, and then the lower release film 14b is peeled off when the adhesive tape 10b is applied. The upper release film 13b is adsorbed (including suspended adsorption) in a manner of detaching from the revealing surface 11b of the adhesive tape 10b, so as to achieve the flexibility of mechanical automatic film peeling and improve the yield of automatic film peeling.

Among them, it must be emphasized that, in the process of the peeling device 50 performing the suspended adsorption of the upper release film 13b from the revealing surface 11b of the adhesive tape 10b, the suspended adsorption force can drive the ear portion 131 of the upper release film 13b upward to generate a The film stripper 50 is contacted by a flexing force, which can drive the adhesive end line adjacent to the glue end line of the ear portion 131 (referring to the end portion between the release film 13b and the exposed surface 11b of the adhesive tape 10b). )Produce A separation force is generated to promote the flexibility of the mechanical peeling of the upper release film 13b from the revealing surface 11b of the adhesive tape 10b, thereby improving 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, which can make the upper 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 70 and is located on the side of a film stripping platform 20. The tape jig 30 is used for placing a plurality of tapes 10b in strips and overlapping each other; the film stripping platform 20 is provided with a surface-shaped adsorber 21, the adsorber 21 adsorbs the whole of the tape 10b in a way that the surface-shaped contact with the release film 14b under the tape 10b, and then the whole of the tape 10b is fixed on the film stripping platform 20 on. 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 70 or put it into the frame 70 by holding the handle 33 .

The reclaimer 40 is disposed above the tape jig 30 and the film stripping platform 20 . The reclaimer 40 can move back and forth between the adhesive tape jig 30 and the film stripping platform 20 , and captures in a negative pressure adsorption manner The tape 10b in the tape jig 30 is moved to the film peeling 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 70 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 , and the film stripper 50 can capture the ear portion 131 of the upper release film 13b, thereby driving the upper release film 13b away The upper release film 13b is peeled off from the exposed surface 11b of the adhesive tape 10b from the exposed surface 11b of the adhesive tape 10b. The film stripper 50 includes a first horizontal driver 51 , a second horizontal driver 52 , a lift driver 53 and a suction nozzle 54 , wherein the film stripper 50 is driven by the first horizontal driver 51 to move upward Above the ear portion 131 of the release film 13b, the stripper 50 is driven by the second horizontal driver 52 to move from above the ear portion 131 of the upper release film 13b toward the sticking portion 132 of the upper release film 13b, The stripper 50 is driven away from the stripping platform 20 by the lift driver 53 , the stripper 50 sucks the ear portion 131 of the upper release film 13b in a single-point manner through the suction nozzle 54 , the first horizontal driver, the second The horizontal drive and the lift drive are implemented as pneumatic cylinders.

The automatic film peeling device of the present invention also includes a film peeling wheel 60, the film peeling wheel 60 is slidably arranged between the film peeling platform 20 and the film peeler 50, and the film peeling wheel 60 can move in the horizontal direction; The ear portion 131 of the film 13b is fixed by the film stripper 50, and when the other end is attached to the revealing surface 11b of the tape 10b, the upper release film 13b can be pushed by the film pushing wheel 60 moving in the horizontal direction, so that the upper release film 13b can be pushed away. The formed film 13b is released from the exposed surface 11b of the tape 10b.

According to the above configuration, please refer to FIG. 9a to FIG. 9h successively, the operation explanatory diagrams of the present invention are sequentially disclosed, illustrating that after the reclaimer 40 captures the tape 10b in the tape jig 30, the reclaimer 40 moves to peel off the film. The platform 20, the tape 10b is placed on the peeling platform 20 (as shown in FIG. 9a); then, the peeling platform 20 absorbs the entirety of the tape 10b in a surface-like contact with the release film 14b under the tape 10b ( As shown in Fig. 9b), the entire adhesive tape 10b is fixed on the film stripping platform 20; then, the film stripper 50 moves to the top of the ear portion 131 of the upper release film 13b (as shown in Fig. 9c); the stripping film The stripper 50 approaches the stripping platform 20 in a direction perpendicular to the stripping platform 20 (as shown in FIG. 9d ), so that the stripper 50 is adjacent to the ear 131 of the upper release film 13b, The ear 131 of the upper release film 13b is suspended and adsorbed; then the film stripper 50 moves away from the film release platform 20 in an upward direction perpendicular to the film release platform 20, so as to move the ear portion 131 upward to make the upper release film 13b Between the ear portion 131 and the sticking portion 132, a folded surface 133 that has been partially separated from the revealing surface 11b of the front end of the tape 10b is formed, and the folded surface 133 is A first flip angle θ 1 greater than 90 degrees and less than 180 degrees is formed between the sticking portion 132 (as shown in FIG. 9e ), and then the film stripper 50 is parallel to the film stripping platform 20 and toward the rear end of the adhesive tape 10b. Move the upper release film 13b in the direction (as shown in FIG. 9f ), so that a second flip angle θ 2 greater than 0 degrees and less than 90 degrees is formed between the folded surface 133 and the sticking portion 132 (as shown in FIG. 9f ) shown), in order to facilitate the upper release film 13b to gradually separate from the tape 10b in the direction of the ear portion 131 and the mesh portion 132; wherein, the formation of the flip-up surface 133 helps to provide the film pushing wheel 60 to move in the horizontal direction (such as As shown in FIG. 9g ), and then push the flip surface 133 of the upper release film 13b to finally make the upper release film 13b completely detach from the tape 10b (as shown in FIG. 9h ), and then complete the automatic peeling operation of the upper release film 13b .

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 (9)

An automatic peeling method for an upper release film of an adhesive tape with 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 front end and a rear end, and 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 lower release film is attached to the adhesive tape on the adhesive tape The force is greater than the upper release film, and both ends of the upper release film have an ear portion and a sticking portion respectively, and the ear portion is flat and protruding to reveal the front end of the tape; S2: Fix the tape on the peeling film platform , in particular, the whole of the tape is adsorbed in the form of a strip-shaped contact with the release film under the tape, and then the whole of the tape is fixed on the film stripping platform; S3: Provide an adsorption force to adsorb the upper surface in a single-point manner Release the ear part of the film, and move the ear part upward, so that a folded surface that has been partially separated from the revealing surface of the front end of the tape is formed between the ear part and the sticking part of the upper release film, and the folded surface is connected to the front end of the tape. A first flip angle greater than 90 degrees and less than 180 degrees is formed between the sticking parts, and then the upper release film is moved in a direction parallel to the film stripping platform and toward the rear end of the tape, so that the flipping surface is aligned with the sticking part A second tilt angle greater than 0 degrees and less than 90 degrees is formed therebetween, so that the upper release film is gradually separated from the revealing surface of the adhesive tape from the ear to the sticking portion, so as to complete the automatic peeling operation of the upper release film. The automatic peeling method of the upper release film of the adhesive tape with the upper and lower release films as claimed in claim 1, wherein the adsorption force is to adsorb the ears of the upper release film in the air. 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 tape jig and the film stripping platform, is used to pick up the tape in the tape jig by suction, and transfer the tape to the film stripping plane The stage is fixed; and a film stripper is arranged above the film stripping platform, and is used to adsorb the ear portion of the upper release film in a single-point manner, and move the upper release film relatively away from the revealing surface of the adhesive tape; wherein , the stripping platform is equipped with an adsorber for adsorbing the whole of the tape in a strip shape. The automatic film stripping device according to claim 3, wherein the tape fixture comprises a base and a plurality of uprights, and the adhesive tape is positioned on the base by being restrained by the plurality of uprights. The automatic film stripping device according to claim 4, wherein a handle is provided on one side of the base. The automatic film stripping device according to claim 3, 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 6, 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. Tape fixture and the peeling platform. The automatic film peeling device according to claim 3, wherein the film peeler sucks the ear portion of the upper release film in a single-point manner through a suction nozzle. The automatic film peeling device according to claim 3, wherein a film peeling wheel is arranged between the film peeling platform and the film peeler, and the film peeling wheel is displaced from the ear portion toward the sticking portion to push the upper release shape film so that the upper release film gradually separates from the adhesive tape.

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