TWM562767U - Thin film tearing structure - Google Patents

Abstract

A film tear-off structure includes an upper stripping member, the upper stripping member comprising a first upper pulley set and a second upper pulley set, wherein the two ends of the first and second upper pulley sets are respectively coupled to the stripping On the two sides of the film machine, the plurality of first belts of the first upper pulley group respectively surround the first sleeve of the plurality of first wheels and the second sleeve of the plurality of second wheels; the plurality of the second upper pulley sets The two belts respectively surround the third sleeve of the plurality of third wheels and the fourth sleeve of the plurality of fourth wheels. The first upper pulley set is adjacent to the second upper pulley set, and the first upper pulley set and the second upper pulley set are rotated in opposite directions to sandwich the film between the plurality of first belts and the plurality of second belts The film is peeled off by the edge of the film before the film is stretched.

Description

Film tear-off structure

This creation relates to a film tear-off structure, especially one that can smoothly and comprehensively peel the film.

In the manufacturing process of the printed circuit board, before the exposure, the photoresist layer and the film adhered to the surface of the photoresist layer are respectively formed on the upper surface and the lower surface of the substrate. After the exposure, the film is peeled off to make the photoresist The layers are exposed for subsequent development and etching procedures. The conventional stripping machine peels the film mainly by means of a front conveying section for conveying the thin plate such as the printed circuit board, so as to move along the front-back conveying direction, and the thin plate is blocked by a blocking unit. After rolling on the surface of the film through a set of embossing wheels, the thin plate continues to be conveyed backwards after the conveying section, and the film which wrinkles the leading edge is gradually peeled off by a set of sticky wheels.

With the above stripping machine structure, the efficiency of the peeling film can be improved. However, in the process of actually peeling off the film, it is found that the thickness of the substrate itself is not large, and it is easy to have unevenness. When the long straight cylindrical adhesive wheel having the same outer diameter adheres to the film, the adhesion of each adhesive position is not completely The same, and because the thickness of the film is very thin and fragile, it is often impossible to smoothly and comprehensively peel the film, and some of the film chips still adhere to the surface of the photoresist layer, and often because the film is brittle. The area of the film is too small to be detected, and this phenomenon will result in the substrate being scrapped during the entire manufacturing process of the printed circuit board.

In view of this, in order to provide a structure different from the conventional technology and to improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development improvements, and this creation has not been produced.

One of the purposes of the present invention is to provide a film tear-off structure which can solve the conventional film stripping machine in the film peeling process, because the adhesive force of each position of the straight-shaped adhesive wheel adhesive film is different, and since the thickness of the film is thin and fragile, The film cannot be smoothly and comprehensively peeled off, and some of the film chips adhere to the surface of the photoresist layer, so that the film can be smoothly and comprehensively peeled off to improve product quality and increase yield. And effectively avoid the cost increase caused by re-processing or material waste caused by substrate scrap.

For the purpose of the above creation, the film tearing structure of the present invention is for peeling off the thin film on the film stripping machine, and the front end of the stripping machine has a front conveying section for conveying the thin plate so as to be along the front end toward the rear end. The conveying direction moves, the thin plate is blocked by the blocking unit and the clamping unit, and after rolling on the surface of the film through a set of embossing wheels, the thin plate continues to be conveyed backwards after the conveying section to peel off the film, and the main technical features thereof The film tear-off structure is located at the front end of the rear conveying section, and the film tearing structure comprises an upper stripping member, and the upper stripping member comprises a first upper pulley set and a second upper pulley set. Wherein, the two ends of the first upper pulley set are respectively connected to two sides of the stripping machine, and the first upper pulley set comprises a first wheel, a second wheel and a plurality of first belts, and the first wheel has a plurality of coaxial lines a first sleeve, the second wheel has a plurality of coaxial second sleeves, and the plurality of first belts respectively surround the plurality of first sleeves and the plurality of second sleeves corresponding to the plurality of first sleeves; Two ends of the second upper pulley set are respectively connected to two sides of the stripping machine, and the second upper pulley set includes a third wheel, a fourth wheel and a plurality of second belts, and the third wheel has a plurality of coaxial third Sleeve, the fourth wheel has a plurality of coaxial fourth sleeves, a plurality of second The belt respectively surrounds a plurality of third sleeves and a plurality of fourth sleeves corresponding to the plurality of third sleeves; the first upper pulley set is adjacent to the second upper pulley set, and the first upper pulley set and the second upper pulley group The pulley set is rotated in the opposite direction to sandwich the film between the plurality of first belts and the plurality of second belts to peel the film from the front edge of the film.

In the implementation, the outer periphery of the first sleeve has a first limiting portion, and the outer periphery of the second sleeve has a second limiting portion, and the first belt surrounds the first limiting portion and the second limiting portion. Limiting the first belt to a fixed position. The first limiting portion is a convex ring surrounding the middle portion of the outer circumference of the first sleeve; the second limiting portion is a convex ring surrounding the middle portion of the outer circumference of the second sleeve.

When implemented, the outer periphery of the third sleeve has a third limiting portion, and the outer periphery of the fourth sleeve has a fourth limiting portion, and the second belt surrounds the third limiting portion and the fourth limiting portion for The second belt is limited to a fixed position. Wherein, the third limiting portion is a convex ring surrounding the middle portion of the outer circumference of the third sleeve; and the fourth limiting portion is a convex ring surrounding the middle portion of the outer circumference of the fourth sleeve.

In implementation, the creation further includes an adjustment portion, and the adjustment portions are respectively disposed on both sides of the stripping machine at both ends of the second round for adjusting and fixing the second round on the stripping machine.

In implementation, the creation further comprises a stripping device, the lower stripping member comprises a first lower pulley set and a second lower pulley set, the two ends of the first lower pulley set are respectively connected to the two sides of the stripping machine, The lower pulley set includes a fifth wheel, a sixth wheel and a plurality of third belts, the fifth wheel has a plurality of coaxial fifth sleeves, and the sixth wheel has a plurality of coaxial sixth sleeves, the plurality of The three belts respectively surround a plurality of fifth sleeves and a plurality of sixth sleeves corresponding to the plurality of fifth sleeves; the two ends of the second lower pulley group are respectively coupled to the two sides of the stripping machine, and the second lower pulley The group includes a seventh wheel, an eighth wheel and a plurality of fourth belts, the seventh wheel has a plurality of coaxial seventh sleeves, the eighth wheel has a plurality of coaxial eighth sleeves, and the plurality of fourth belts a plurality of seventh sleeves corresponding to the plurality of seventh sleeves and a plurality of eighth sleeves corresponding to the plurality of seventh sleeves; the first lower pulley set adjacent to the second lower pulley set, and the first lower pulley set and the second lower pulley set The set is rotated in the opposite direction to sandwich the film between the plurality of third belts and the plurality of fourth belts to peel the film from the leading edge of the film.

In practice, the creation further includes a blowing unit, the blowing unit is located at the rear end of the upper stripping member and the lower stripping member, the blowing unit is connected to a gas supply device, and the blowing unit comprises an upper blowing unit and a lower blowing unit. The upper blowing unit has at least one upper blowing port, and the blowing direction of the upper blowing port forms an oblique angle with the thin plate, and is blown downward from the front end of the thin plate toward the rear end, and the lower blowing unit has at least At the lower air blowing port, the blowing direction of the lower blowing port forms an oblique angle with the thin plate, and is blown upward by the front end of the thin plate toward the rear end.

In order to facilitate a deeper understanding of this creation, it is detailed later:

1‧‧‧film tear-off structure

11‧‧‧Strip machine

111‧‧‧left side panel

112‧‧‧right board

113, 114‧‧‧ long holes

115, 116‧‧‧Adjustment holes

117, 118‧‧‧ Positioning Kit

119‧‧‧Adjustment Department

12‧‧‧Sheet

121‧‧‧Substrate

122‧‧‧film

13‧‧‧Pre-conveying section

14‧‧‧Blocking unit

15‧‧‧Clamping unit

16‧‧‧ embossing wheel

17‧‧‧post conveyor section

18‧‧‧ accommodating box

2‧‧‧Upper stripping

21‧‧‧First upper pulley set

211‧‧‧ first round

212‧‧‧ second round

213‧‧‧First belt

214‧‧‧First sleeve

215‧‧‧Second sleeve

216‧‧‧First Limitation Department

217‧‧‧Second Limitation

22‧‧‧Second upper pulley set

221‧‧‧ third round

222‧‧‧ fourth round

223‧‧‧Second belt

224‧‧‧ Third sleeve

225‧‧‧fourth sleeve

226‧‧‧ Third Limit Department

227‧‧‧4th Limitation Department

3‧‧‧Under film stripping

31‧‧‧First lower pulley set

311‧‧‧ fifth round

312‧‧‧6th round

313‧‧‧ Third belt

314‧‧‧ fifth sleeve

315‧‧‧ sixth sleeve

32‧‧‧Second lower pulley set

321‧‧‧ seventh round

322‧‧‧8th round

323‧‧‧fourth belt

324‧‧‧ seventh sleeve

325‧‧‧8th sleeve

4‧‧‧Blowing unit

41‧‧‧Upd air unit

411‧‧‧Upper mouth

42‧‧‧Blowing unit

421‧‧‧Blowing port

The first and second figures are schematic diagrams of the flow of the preferred embodiment of the present invention installed on the stripping machine.

Figure 3 is a schematic cross-sectional view of the various wheels of the preferred embodiment of the present invention.

Figure 4 is an exploded view of the components of the preferred embodiment of the present invention.

Referring to Figures 1 and 2, the film peeling structure 1 is used to peel off the film 12 of the thin plate 12 on the film stripping machine 11, the thin plate 12 is a plate body such as a printed circuit board, and at least one film 122 is used. It is bonded to the photoresist layer on at least one side of the substrate 121. In implementation, one end of the thin film 12 of the stripping machine 11 is defined as the front end of the stripping machine 11 and the rear end of the thin plate 12, and one end of the output thin plate 12 is defined as the rear end of the stripping machine 11 and the front end of the thin plate 12, and the stripping machine 11 The front end has a front conveying section 13, and the front conveying The segment 13 is composed of a plurality of horizontally spaced drums for transporting the sheet 12 to move in a conveying direction from the front end of the stripping machine 11 toward the rear end. The thin plate 12 is blocked by a blocking unit 14 and a clamping unit 15, and then rolled on the surface of the film 122 via a set of embossing wheels 16 to form a wrinkle at the front edge of the film 122, and then the thin plate 12 continues to be extended. The conveying section 17 is moved rearward to peel off the film 122, causing the film 122 to fall into the containing case 18.

The film tearing structure 1 is located at the front end of the rear conveying section 17. When the two films 122 are respectively bonded to the upper and lower surfaces of the substrate 121, the preferred embodiment of the film tearing structure 1 comprises an upper film stripping member. 2. When the film stripping member 3 and the air blowing unit 4 are needed to be peeled off, only one of the upper film stripping member 2 and the blowing unit 4 may be blown on the air blowing unit 41. This is described by taking the upper stripping member 2 and the lower stripping member 3 as an example.

The upper stripping member 2 and the lower stripping member 3 are respectively located above and below the front end of the rear conveying section 17. The upper stripping member 2 includes a first upper pulley set 21 and a second upper pulley set 22, and the left and right ends of the first upper pulley set 21 and the left and right ends of the second upper pulley set 22 are respectively coupled to the stripping film. On the left and right side plates (111, 112) of the machine 11.

As shown in FIG. 3 , the first upper pulley set 21 includes a first wheel 211 , a second wheel 212 , and a plurality of first belts 213 . The first wheel 211 has a plurality of coaxial first sleeves 214 . The second wheel 212 has a plurality of coaxial second sleeves 215. The middle portion of the outer circumference of the first sleeve 214 and the middle portion of the outer circumference of the second sleeve 215 respectively have a convex ring, and the two convex rings are respectively used as the first limit. a plurality of first belts 213 respectively surrounding the plurality of first sleeves 214 and the plurality of second sleeves 215 corresponding to the plurality of first sleeves 214, and A first belt 213 simultaneously presses the first limiting portion 216 of the corresponding first sleeve 214 and the second limiting portion 217 of the second sleeve 215 to limit the first belt 213 to a fixed position. Up and not with the first set The barrel 214 and the second sleeve 215 are disengaged.

The first upper pulley set 21 is adjacent to the second upper pulley set 22, and the first upper pulley set 21 and the second upper pulley set 22 are rotated in opposite directions. The second upper pulley set 22 includes a third wheel 221, a fourth wheel 222 and a plurality of second belts 223. The third wheel 221 has a plurality of coaxial third sleeves 224, and the fourth wheel 222 has a plurality of coaxial The fourth sleeve 225, the middle portion of the outer circumference of the third sleeve 224 and the middle portion of the outer circumference of the fourth sleeve 225 respectively have a convex ring, and the two convex rings are respectively used as the third limiting portion 226 and the fourth limiting portion. 227; a plurality of second belts 223 respectively surround the plurality of third sleeves 224 and the plurality of fourth sleeves 225 corresponding to the plurality of third sleeves 224, and simultaneously press a second belt 223 a third limiting portion 226 corresponding to the third sleeve 224 and a fourth limiting portion 227 of the fourth sleeve 225 to limit the second belt 223 to a fixed position without the third sleeve 224 and the fourth sleeve 225 are disengaged.

Thereby, after the film 122 on the substrate 121 is rolled through the embossing wheel 16 to form a wrinkle at the front edge of the film 122, the first belt 213 and the second belt 223 which are rotated in the opposite direction of the plurality of arrays form a plurality of elastic films. The unit, whether it is the flat substrate 121 or the uneven substrate 121, can form an effective clamping force, and at the same time, the film 122 is sandwiched between the plurality of first belts 213 and the plurality of second belts 223, and is extended. The front edge of the film 122 smoothly peels the film 122 from the upper surface of the substrate 121.

As shown in FIG. 4, the left and right side plates (111, 112) of the stripping machine 11 are respectively provided with an elongated hole (113, 114) for respectively passing the left and right ends of the second wheel 212, respectively. A plurality of lateral adjustment holes (115, 116) are respectively disposed at the upper and lower end positions of the elongated holes (113, 114); thereby, the two positioning sets (117, 118) are respectively respectively connected to the left and right of the second wheel 212 After the end, the second wheel 212 is adjusted and fixed relative to the position of the adjustment hole (115, 116) via the positioning kit (117, 118). The position of the first wheel 211 is adjusted to adjust the tightness of the first belt 213 or to replace the first belt 213. In the implementation, the elongated holes (113, 114), the adjustment holes (115, 116), and the positioning kits (117, 118) are combined as the adjustment portion 119. The second belt 223 can also be configured by the similar adjustment portion 119 to adjust the tightness of the second belt 223 or replace the second belt 223.

Referring to FIG. 1 again, the lower stripping member 3 includes a first lower pulley set 31 and a second lower pulley set 32, left and right ends of the first lower pulley set 31 and a second lower pulley set 32. The left and right ends are respectively coupled to the left and right side plates (111, 112) of the stripping machine 11.

The first lower pulley set 31 includes a fifth wheel 311, a sixth wheel 312 and a plurality of third belts 313. The fifth wheel 311 has a plurality of coaxial fifth sleeves 314, and the sixth wheel 312 has a plurality of coaxial The sixth sleeve 315 has a plurality of third belts 313 respectively surrounding a plurality of fifth sleeves 314 and a plurality of sixth sleeves 315 corresponding to the plurality of fifth sleeves 314. In the implementation, the intermediate portion of the outer circumference of the fifth sleeve 314 and the middle portion of the outer circumference of the sixth sleeve 315 preferably have a limiting portion of the first and second limiting portions (216, 217), thereby limiting the position. The third belt 313 is in a fixed position and is not disengaged from the fifth sleeve 314 and the sixth sleeve 315.

The first lower pulley set 31 is adjacent to the second lower pulley set 32, and the first lower pulley set 31 and the second lower pulley set 32 are rotated in opposite directions. The second lower pulley set 32 includes a seventh wheel 321 , an eighth wheel 322 and a plurality of fourth belts 323 . The seventh wheel 321 has a plurality of coaxial seventh sleeves 324 , and the eighth wheel 322 has a plurality of coaxial lines. The eighth sleeve 325 has a plurality of fourth belts 323 respectively surrounding a plurality of seventh sleeves 324 and a plurality of eighth sleeves 325 corresponding to the plurality of seventh sleeves 324. In the implementation, the intermediate portion of the outer circumference of the seventh sleeve 324 and the intermediate portion of the outer circumference of the eighth sleeve 325 preferably have a limiting portion of the first and second limiting portions (216, 217), thereby limiting the position. The fourth belt 323 is in a fixed position and is not disengaged from the seventh sleeve 324 and the eighth sleeve 325. borrow Therefore, when the third belt 313 and the fourth belt 323 rotating in the opposite direction of the multiple arrays are simultaneously actuated, a plurality of elastic film units can be formed, and the film 122 is sandwiched between the plurality of third belts 313 and a plurality of Between the fourth belts 323, the film 122 is smoothly peeled off from the lower surface of the substrate 121.

The air blowing unit 4 includes an upper blowing unit 41 and a lower blowing unit 42. The upper blowing unit 41 and the lower blowing unit 42 are respectively located at the rear ends of the upper stripping member 2 and the lower stripping member 3, and are blown up. The gas unit 41 and the lower blowing unit 42 are connected to a gas supply device. In addition, the upper blowing unit 41 has a plurality of upper blowing ports 411, and the blowing direction of the upper blowing port 411 forms an oblique angle with the thin plate 12; the lower blowing unit 42 has a plurality of lower blowing ports 421, and the lower blowing port 421 is blown. The gas direction forms an oblique angle with the thin plate 12.

Thereby, in the process of smoothly rolling the peeling film 122 before the upper stripping member 2 and the lower stripping member 3 extend the thin plate 12, the plurality of upper blowing ports 411 of the upper blowing unit 41 are directed from the front end of the thin plate 12 The direction of the rear end is blown downward, and the plurality of lower blowing ports 421 of the lower blowing unit 42 are blown upward by the front end of the thin plate 12 toward the rear end, so that the two films 122 are respectively swayed backward and gradually peeled off.

In summary, according to the content disclosed above, this creation can achieve the intended purpose, providing a film tear-off structure that can smoothly and comprehensively strip the film, which is of great value in industrial use, and proposes a new type according to law. patent application.

Claims (10)

A film tear-off structure for stripping a thin film on a stripping machine, wherein the stripping machine has a front conveying section at a front end for conveying a thin plate to move along a conveying direction from the front end toward the rear end, the thin plate After the barrier positioning by a blocking unit and a clamping unit, and then rolling on the surface of the film via a set of embossing wheels, the thin plate continues to be transported backwards through a conveying section to peel the film, wherein the film is peeled off. The structure is located at the front end of the rear conveying section, and the film tearing structure comprises an upper stripping member, the upper stripping member comprises: a first upper pulley set, the two ends of which are respectively connected to the two sides of the stripping machine, The first upper pulley set includes a first wheel, a second wheel and a plurality of first belts, the first wheel has a plurality of coaxial first sleeves, and the second wheel has a plurality of coaxial second sleeves The plurality of first belts respectively surround the plurality of first sleeves and the plurality of second sleeves corresponding to the plurality of first sleeves; and a second upper pulley set, the two ends of which are respectively coupled to On both sides of the stripping machine, The second upper pulley set includes a third wheel, a fourth wheel and a plurality of second belts, the third wheel having a plurality of coaxial third sleeves, the fourth wheel having a plurality of coaxial fourth sleeves The plurality of second belts respectively surround the plurality of third sleeves and the plurality of fourth sleeves corresponding to the plurality of third sleeves; the first upper pulley set is adjacent to the second upper pulley set, And the first upper pulley set and the second upper pulley set are rotated in opposite directions, so that the film is sandwiched between the plurality of first belts and the plurality of second belts, so that the edge of the film before the film is stretched Film peeling. The film tear-off structure of claim 1, wherein the outer periphery of the first sleeve has a first limiting portion, and the outer periphery of the second sleeve has a second limiting portion, the first The belt surrounds the first limiting portion and the second limiting portion for limiting the first belt to a fixed position. The film tear-off structure of claim 2, wherein the first limiting portion is a convex ring surrounding the middle portion of the outer circumference of the first sleeve. The film tear-off structure of claim 3, wherein the second limiting portion is a convex ring surrounding the intermediate portion of the outer circumference of the second sleeve. The film tear-off structure of claim 2, wherein the outer periphery of the third sleeve has a third limiting portion, and the outer periphery of the fourth sleeve has a fourth limiting portion, The second belt surrounds the third limiting portion and the fourth limiting portion for limiting the second belt to a fixed position. The film tear-off structure of claim 5, wherein the third limiting portion is a convex ring surrounding the middle portion of the outer circumference of the third sleeve. The film tear-off structure of claim 6, wherein the fourth limiting portion is a convex ring surrounding the middle portion of the outer circumference of the fourth sleeve. The film tear-off structure according to claim 1, further comprising a stripping member, the lower stripping member comprising a first lower pulley set and a second lower pulley set, the first lower pulley set The two ends are respectively connected to two sides of the stripping machine, and the first lower pulley set includes a fifth wheel, a sixth wheel and a plurality of third belts, the fifth wheel having a plurality of coaxial fifth sleeves. The sixth wheel has a plurality of coaxial sixth sleeves, the plurality of third belts respectively surrounding the plurality of fifth sleeves and the plurality of sixth sleeves corresponding to the plurality of fifth sleeves; Two ends of the second lower pulley set are respectively coupled to two sides of the stripping machine, and the second lower pulley set includes a seventh wheel, an eighth wheel and a plurality of fourth belts, the seventh wheel having a plurality of coaxial It a seventh sleeve having a plurality of coaxial eighth sleeves, the plurality of fourth belts respectively surrounding the plurality of seventh sleeves and the plurality of corresponding plurality of seventh sleeves An eight-sleeve; the first lower pulley set is adjacent to the second lower pulley set, and the first lower pulley set and the second lower pulley set are rotated in opposite directions, thereby clamping the film to the plurality of third Between the belt and the plurality of fourth belts, the film is peeled off before the edge of the film is stretched. The film tear-off structure of claim 8, further comprising a blowing unit, the blowing unit is located at the rear end of the upper stripping member and the lower stripping member, and the blowing unit is connected to a gas supply device And the air blowing unit includes an upper air blowing unit and a lower air blowing unit, wherein the upper air blowing unit has at least one upper air blowing port, and the blowing direction of the upper air blowing port forms an oblique angle with the thin plate, and is formed by a thin plate The lower end blows downward toward the rear end, and the lower blowing unit has at least a lower blowing port, and the blowing direction of the lower blowing port forms an oblique angle with the thin plate, and is from the front end of the thin plate toward the rear end. The direction is blown upwards. The film tear-off structure of claim 1, further comprising an adjusting portion respectively disposed at two sides of the stripping machine at both ends of the second wheel for adjusting and fixing the second wheel On the stripping machine.