CN211641289U - PI stripping off device - Google Patents

PI stripping off device Download PDF

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Publication number
CN211641289U
CN211641289U CN201921916338.6U CN201921916338U CN211641289U CN 211641289 U CN211641289 U CN 211641289U CN 201921916338 U CN201921916338 U CN 201921916338U CN 211641289 U CN211641289 U CN 211641289U
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Prior art keywords
wheel
stripping
conveying
section
pressing wheel
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CN201921916338.6U
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Chinese (zh)
Inventor
雷永芳
龙文
易国安
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Lengshuijiang Jingke Electronic Technology Co ltd
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Lengshuijiang Jingke Electronic Technology Co ltd
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Abstract

The utility model provides a PI stripping off device. The PI stripping device comprises a conveying platform and a stripping assembly, wherein the conveying platform comprises a feeding section, a stripping section and a discharging section, the stripping assembly comprises a first winding drum, a second winding drum, a first conveying wheel, a first pressing wheel and a mucous membrane, the first winding drum is arranged above the feeding section, the first conveying wheel is arranged close to the conveying platform at the stripping section, the first pressing wheel is arranged at the position, close to the feeding section, of the stripping section and above the first conveying wheel, and the second winding drum is arranged above the discharging section; the height of the second reel relative to the conveying platform is higher than that of the first reel relative to the conveying platform; the mucosa is unreeled from the first reel, passes through the space between the first pressing wheel and the first conveying wheel, and is reeled on the second reel. Compared with the related art, the device adopts mechanical stripping, has low cost, and the stripped substrate does not need to resist high temperature.

Description

PI stripping off device
Technical Field
The utility model relates to a flexible touch-sensitive screen technical field especially relates to a PI stripping off device.
Background
With the development of 5G technology, the mainstream design of the mobile phone screen at present is a scheme that 3D glass is used as a front cover (the whole surface is arc-shaped, and the side surface can also display touch, abbreviated as waterfall screen), flexible OLED (Organic Light-emitting diode) display is pasted inside, and flexible touch is hung outside. And traditional external touch SENSOR (capacitive touch screen) is than thicker, bending resistance is relatively poor, pastes and can increase the thickness of whole screen on flexible OLED display screen, can not the bending of big radian in addition, and the conducting layer that the radian is too big can appear chapping and raised grain, and outward appearance function loses as far as possible. The flexible touch SENSOR has the characteristics opposite to those of the traditional touch SENSOR, is ultrathin and bending-resistant (good in elongation), and is an optimal touch scheme for the flexible OLED display plug-in, so that the traditional touch market demand is in a decreasing trend, the actual demand of the traditional touch market is really greatly reduced at present, and the demand of the flexible touch market is greatly increased.
The flexible touch SENSOR process comprises glass substrate input, coating, soft baking, exposure, development, curing, cutting, POL (Polarizer Polarizer) pasting, stripping, binding, testing and inspection, and shipment. The most critical technique is in stripping.
The existing stripping process generally adopts a Laser Lift-off (LLO) scheme, and utilizes Laser energy to decompose a buffer layer between a polyimide PI (polyimide) substrate and glass, so as to realize the stripping of the PI substrate from the glass. During laser lift-off (LLO), the laser releases high temperature energy to decompose the buffer layer between the PI and the glass, so the substrate being lifted off must be able to withstand temperatures above 300 ℃. Not all substrates can be stripped by laser, and the universality is limited, and the specific defects are as follows:
the substrate to be stripped must be resistant to high temperatures;
(II) limited technical universality;
(III) low efficiency;
(IV) the cost is high;
(V) the technical threshold is high;
(VI) relying on import.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a machinery is peeled off, is peeled off basis and need not high temperature resistance PI stripping off device.
The technical scheme of the utility model is that: a PI stripping device comprises a conveying platform and a stripping assembly arranged above the conveying platform, wherein the conveying platform comprises a feeding section, a stripping section and a discharging section which are sequentially arranged, the stripping assembly comprises a first winding drum, a second winding drum, a first conveying wheel, a first pressing wheel and a mucous membrane, the first winding drum is arranged above the feeding section, the first conveying wheel is arranged close to the conveying platform at the stripping section, the first pressing wheel is arranged at the position, close to the feeding section, of the stripping section and above the first conveying wheel, and the second winding drum is arranged above the discharging section; the height of the second reel relative to the conveying platform is higher than that of the first reel relative to the conveying platform; the mucosa is unreeled from the first reel, passes through the space between the first pressing wheel and the first conveying wheel, and is reeled on the second reel.
In the scheme, the adhesive film used for sticking the peeled base material is conveyed through the structure and position arrangement relation of the winding drum, the conveying wheel and the pressing wheel, so that the PI base material and the material layers above the PI base material are effectively peeled from the glass bearing plate, and no ultrahigh temperature is generated.
Preferably, the number of the first conveying wheels is at least two, and the first conveying wheels are respectively arranged on the stripping section and close to the feeding section and the discharging section; the number of the first pressing wheels is at least one, and the first pressing wheels are arranged above the first conveying wheels close to the feeding section.
Preferably, the stripping assembly further comprises a first roller, the first roller is arranged above a first conveying wheel which is arranged on the stripping section and close to the discharging section, and the vertical distance between the first roller and the first conveying wheel is equal to the thickness of the stripped glass bearing plate.
Preferably, the vertical distance between the first conveying wheel and the first pressing wheel is equal to the thickness of the screen to be peeled.
Preferably, the adhesive film enters from an approach angle of the first pressing wheel and is output from a departure angle of the first pressing wheel, and the approach angle is larger than the departure angle.
Preferably, the peeling assembly further comprises a mucosa peeling assembly arranged between the first pressing wheel and the second winding drum and used for peeling mucosa and the peeled substrate, the mucosa peeling assembly is arranged above the discharging section, and the height of the mucosa peeling assembly is higher than that of the first pressing wheel.
Preferably, the mucosa peeling assembly comprises at least two second conveying wheels, at least one second pressing wheel and at least one second roller wheel, the second conveying wheels, the second pressing wheel and the second roller wheel are arranged up and down, the second pressing wheel and the second roller wheel are both positioned at the upper side, the second pressing wheel is arranged close to the first pressing wheel, and the vertical distance between the second conveying wheels and the second pressing wheel is not less than the sum of the thicknesses of the mucosa and the peeled substrate; the vertical spacing between the second transport wheel and the second roller is equal to the thickness of the substrate being peeled.
Preferably, the peeling assembly further comprises a guide wheel arranged between the first pressing wheel and the mucosa peeling assembly, and the guide wheel can enable the mucosa and the peeled substrate output from the first pressing wheel to horizontally enter the mucosa peeling assembly.
Preferably, the second reel is positioned above the mucosa stripping component and is adjacent to the second pressing wheel; the horizontal spacing between the second roller and the adjacent second pressing wheel is smaller than the thickness of the stripped substrate.
Preferably, the diameters of the first conveying wheel, the first pressing wheel and the first roller wheel are larger than the diameters of the second conveying wheel, the second pressing wheel and the second roller wheel.
Compared with the prior art, the beneficial effects of the utility model are that:
the stripped substrate does not need to resist high temperature;
the stripping device can be suitable for all base materials, has low technical threshold and is easy to realize;
thirdly, the processing and production can be realized at home without depending on imported equipment/accessories;
and (IV) performing budget by the comprehensive stripping technology: if the current laser lift-off (LLO) technology is adopted, the reference price of the equipment is 500 ten thousand per unit, and the reference price of the device of the utility model is only 10 ten thousand, the cost is low, and the efficiency is high.
Drawings
Fig. 1 is a schematic structural view of a PI peeling apparatus provided by the present invention;
fig. 2 is a flow chart of the peeling process of the PI peeling apparatus provided by the present invention.
In the drawing, 1-conveying platform, 11-feeding section, 12-peeling section, 13-discharging section, 2-peeling component, 201-first reel, 202-second reel, 203-first conveying wheel, 204-first pressing wheel, 205-adhesive film, 206-first roller, 207-guide wheel, 208-second conveying wheel, 209-second pressing wheel, 210-second roller, 100-peeled substrate and 200-glass supporting plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
As shown in fig. 1 and 2, the PI peeling apparatus provided in this embodiment includes a conveying platform 1 and a peeling assembly 2 disposed above the conveying platform 1.
The conveying platform 1 comprises a feeding section 11, a stripping section 12 and a discharging section 13 which are arranged in sequence. The conveying platform 1 horizontally displaces from the feeding section 11 to the discharging section 13.
The peeling assembly 2 comprises a first reel 201, a second reel 202, a first conveying wheel 203, a first pressing wheel 204, a sticking film 205, a first roller 206 and a guide wheel 207. The first reel 201 is arranged above the feeding section 11, the second reel 202 is arranged above the discharging section 13, and the height of the second reel 202 (the height refers to the vertical height relative to the conveying platform 1, and the definition is also equivalent to the "vertical spacing" mentioned below) is higher than the height of the first reel 201.
In this embodiment, the number of the first conveying wheels 203 is three, and two of the first conveying wheels are sequentially arranged on the stripping section 12 and adjacent to the feeding section 11. Another delivery wheel is located adjacent the outfeed section 13. The number of the first pressing wheels 204 is two, and the two first pressing wheels 204 are located above the two first conveying wheels 203 adjacent to the feeding section 11 and are in one-to-one correspondence.
The first roller 206 is arranged above the first conveying wheel 203 which is arranged on the peeling section 12 and close to the discharging section 13, the vertical distance between the first conveying wheel 203 and the first pressing wheel 204 is equal to the thickness of the screen to be peeled, or the distance can be designed to be slightly smaller in consideration of processing errors, so that the mucosa is ensured to be well attached to the screen to be peeled. The vertical spacing between the first roller 206 and the first conveyor wheel 203 is equal to the thickness of the peeled glass support sheet 200.
The peeling assembly 2 further comprises a mucosa peeling assembly arranged between the first pressing wheel 204 and the second winding drum 202 and used for peeling mucosa and the peeled substrate, the mucosa peeling assembly is arranged above the discharging section, and the height of the mucosa peeling assembly is higher than that of the first pressing wheel 204.
The mucosa stripping assembly comprises a second conveying wheel 208, a second pressing wheel 209 and a second roller 210, wherein in the embodiment, the number of the second conveying wheels 208 is three, the number of the second pressing wheels 209 is two, and the number of the second roller 210 is one.
The second conveying wheel 208, the second pressing wheel 209 and the second roller 210 are vertically arranged and are in one-to-one correspondence, and the second pressing wheel 209 and the second roller 210 are both located on the upper side. The second pressing wheel 209 is arranged adjacent to the first pressing wheel 204, and the vertical distance between the second conveying wheel 208 and the second pressing wheel 209 is not less than the sum of the thicknesses of the adhesive film and the stripped substrate. The vertical spacing between the second transport wheel 208 and the second roller 210 is equal to the thickness of the substrate being peeled.
The guide wheel 207 is arranged between the first pressing wheel 204 and the second pressing wheel 209, and can enable the mucosa and the stripped substrate output from the first pressing wheel 204 to horizontally enter the mucosa stripping assembly.
The adhesive film 205 is unwound from the first reel 201, passes between the first pressing wheel 204 and the first conveying wheel 203, passes through the guide wheel 207, passes between the second pressing wheel 209 and the second conveying wheel 208, and is wound on the second reel 202. The adhesive film 205 enters from the approach angle of the first pressing wheel 204 and exits from the departure angle of the second first pressing wheel 204. The approaching angle refers to an included angle between the mucosa and the conveying platform at the end side where the mucosa of the first pressing wheel 204 enters, and similarly, the departing angle refers to an included angle between the mucosa and the conveying platform at the end side where the mucosa of the second pressing wheel 204 outputs. The approach angle is greater than the departure angle.
The utility model provides a flexible screen that PI stripping off device need peel off includes: and the packaging film, the OLED working layer, the PI base material, the touch SENSOR and the polaroid are sequentially stacked from bottom to top. The flexible screen processing needs to be performed on a glass carrier plate. The glass supporting plate is mainly used because the glass is hard and has good flatness, the coating/plating can realize uniformity, and the glass supporting plate can be used for manufacturing thin and fine precise circuits or layers. The flexible screen needs to make the PI substrate on the glass bearing plate, then make other layers on the PI substrate, and after the processing is finished, the material layer above the PI substrate needs to be peeled off from the glass bearing plate.
The peeling method of the PI peeling device comprises the following steps:
step one, before starting the work, the work is started after the mucosa 205 is connected from the above-mentioned positional relationship. The adhesive film 205 has a high viscosity characteristic. The mucosa is unreeled from the first reel, passes through the space between the first pressing wheel and the first conveying wheel and is reeled on the second reel; making the mucosa 205 continuous in the middle.
The adhesive film 205 is pulled upwards by the adhesive film peeling assembly after coming out of the second first pressing wheel 204, and an upward tearing force is formed. The second reel 202 is disposed above the mucosa stripping assembly and is offset to the right as viewed in fig. 1, so that the mucosa 205 is pulled to the right by the second pressing wheel 209.
And step two, by the operation of the conveying platform 1, the screen to be peeled (containing the glass supporting plate, the PI base material and the material layers above) enters between the first pressing wheel 204 and the first conveying wheel 203 of the peeling section 12 from the feeding section 11 of the conveying platform 1. The adhesive film 205 is adhered to the screen to be peeled by the pressing of the two first pressing wheels 204 and the first conveying wheel 203.
Two first pressing wheels 204 adjacent to the feeding section 11 are arranged above and below the first conveying wheel 203, and press the adhesive film 205 and the peeled substrate 100 (PI substrate and material layer above the PI substrate) to make the adhesive film 205 sufficiently adhere to the surface of the peeled substrate 100.
And step three, under the action of the guide wheel and the mucosa stripping assembly, the stripped substrate 100 is taken away from the second first pressing wheel 204 to the direction of the second reel 202 under the action of the viscosity of the mucosa 205. The first roller 206 and the third first conveying wheel 203 press the glass support plate 200 so as not to be brought up by the adhesive film 205, thereby achieving peeling of the peeled substrate 100 from the glass support plate 200.
And step four, outputting the stripped glass supporting plate 200 from the position between the first roller 206 and the first conveying wheel 203, and conveying the glass supporting plate to the discharging section 13 through the conveying platform 1 for discharging.
And step five, the stripped adhesive film and the stripped substrate horizontally enter between a second pressing wheel 209 and a second conveying wheel 208 in the adhesive film stripping assembly through the guide wheel 207 after being output from the second first pressing wheel 204.
The second roller 210 and the third second conveying wheel 208 press the peeled substrate 100, so that the adhesive film 205 is effectively peeled from the peeled substrate after being output from the second pressing wheel 204.
The horizontal distance between the second pressing wheel 209 and the second roller 210 is smaller than the thickness of the peeled substrate 100, and when the second roll 202 is wound, the peeled substrate 100 is separated from the adhesive film 205 under the combined action of the blocking of the second roller 210 and the winding force of the second roll 202 due to the above structure. In the separation process, the second reel 202 winds the adhesive film 205, and the second roller 210 and the second conveying wheel 208 have a good pressing effect on the peeled substrate, so that the peeled substrate is effectively peeled.
Step six, the peeled adhesive film 205 is wound up from the second reel 202, and the peeled substrate 100 is fed out from between the second roller 210 and the second transport roller 208.
In addition, the horizontal distance between the two second pressing wheels 209 is structurally greater than the horizontal distance between the second pressing wheel 204 and the second roller 210, so that the stripped substrate can be stripped after being horizontally conveyed for a long time, and then the mucosa on the stripped substrate is torn in a rightward bending direction, and effective stripping can be realized.
The horizontal distance between the two first pressing wheels 204 is smaller than the horizontal distance between the second first pressing wheel 204 and the first roller 206, so that the adhesive film 205 can be effectively bonded with the screen to be peeled.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (10)

1. A PI stripping device is characterized by comprising a conveying platform (1) and a stripping component (2) arranged above the conveying platform (1), the conveying platform (1) comprises a feeding section (11), a stripping section (12) and a discharging section (13) which are arranged in sequence, the peeling assembly (2) comprises a first reel (201), a second reel (202), a first conveying wheel (203), a first pressing wheel (204) and a mucous membrane (205), the first reel (201) is arranged above the feeding section (11), the first conveying wheel (203) is arranged near the conveying platform (1) at the stripping section (12), the first pressing wheel (204) is positioned above the first conveying wheel (203) at the position of the stripping section (12) close to the feeding section (11), the second reel (202) being arranged above the outfeed section (13); the height of the second reel (202) relative to the conveying platform (1) is higher than the height of the first reel (201) relative to the conveying platform (1); the adhesive film (205) is unreeled from the first reel (201), passes between the first pressing wheel (204) and the first conveying wheel (203), and is reeled on the second reel (202).
2. PI stripping apparatus as in claim 1, characterized by the fact that the first conveying wheels (203) are at least two in number, arranged adjacent to the infeed section (11) and to the outfeed section (13) on the stripping section (12), respectively; the number of the first pressing wheels (204) is at least one, and the first pressing wheels are arranged above the first conveying wheels (203) adjacent to the feeding section (11).
3. The PI peeling apparatus as claimed in claim 1, wherein the peeling assembly (2) further comprises a first roller (206), the first roller (206) is disposed above a first conveying wheel (203) disposed on the peeling section (12) adjacent to the outfeed section (13), and a vertical spacing between the first roller (206) and the first conveying wheel (203) is equal to a thickness of the peeled glass support plate.
4. PI peeling device according to claim 1, characterized in that the vertical distance between the first transport wheel (203) and the first stitching wheel (204) is equal to the thickness of the screen to be peeled.
5. The PI peeling apparatus according to claim 1, wherein the adhesive film (205) enters from an approach angle of the first pressing wheel (204) and exits from a departure angle of the first pressing wheel (204), the approach angle being larger than the departure angle.
6. The PI peeling apparatus as claimed in claim 1, wherein the peeling assembly (2) further comprises a mucosa peeling assembly disposed between the first pressing wheel (204) and the second reel (202) for peeling off mucosa (205) from the peeled substrate, the mucosa peeling assembly being disposed above the discharging section (13) and having a height higher than that of the first pressing wheel (204).
7. The PI stripping apparatus as claimed in claim 6, wherein the mucosa stripping assembly comprises at least two second conveying wheels (208), at least one second pressing wheel (209) and at least one second roller (210), the second conveying wheels (208) are arranged above and below the second pressing wheel (209) and the second roller (210), the second pressing wheel (209) and the second roller (210) are both arranged at the upper side, the second pressing wheel (209) is arranged adjacent to the first pressing wheel (204), and the vertical distance between the second conveying wheels (208) and the second pressing wheel (209) is not less than the sum of the thicknesses of the mucosa and the stripped substrate; the vertical spacing between the second transport wheel (208) and the second roller (210) is equal to the thickness of the substrate being peeled.
8. The PI stripping apparatus as claimed in claim 6, characterized in that the stripping assembly (2) further comprises a guide wheel (207) arranged between the first pressing wheel (204) and the adhesive film stripping assembly, wherein the guide wheel (207) can horizontally guide the adhesive film (205) output from the first pressing wheel (204) and the stripped substrate into the adhesive film stripping assembly.
9. The PI peeling apparatus as claimed in claim 7, wherein the second reel (202) is positioned above the mucosa peeling assembly and adjacent to the second pressing wheel (209); the horizontal spacing between the second roller (210) and the adjacent second pressing wheel (209) is smaller than the thickness of the stripped substrate.
10. PI stripping arrangement according to claim 7, characterized in that the first transport wheel (203), the first stitching wheel (204) and the first roller (206) have a larger diameter than the second transport wheel (208), the second stitching wheel (209) and the second roller (210).
CN201921916338.6U 2019-11-08 2019-11-08 PI stripping off device Active CN211641289U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921916338.6U CN211641289U (en) 2019-11-08 2019-11-08 PI stripping off device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921916338.6U CN211641289U (en) 2019-11-08 2019-11-08 PI stripping off device

Publications (1)

Publication Number Publication Date
CN211641289U true CN211641289U (en) 2020-10-09

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Application Number Title Priority Date Filing Date
CN201921916338.6U Active CN211641289U (en) 2019-11-08 2019-11-08 PI stripping off device

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CN (1) CN211641289U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110682661A (en) * 2019-11-08 2020-01-14 冷水江市京科电子科技有限公司 PI stripping device and stripping method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110682661A (en) * 2019-11-08 2020-01-14 冷水江市京科电子科技有限公司 PI stripping device and stripping method

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A PI stripping device

Effective date of registration: 20231206

Granted publication date: 20201009

Pledgee: China Construction Bank Corporation Lengshuijiang Branch

Pledgor: Lengshuijiang Jingke Electronic Technology Co.,Ltd.

Registration number: Y2023980069790