TW201914381A - Structure for preventing thin plate from falling capable of supporting a thin plate on a stripping machine to move forward - Google Patents

Abstract

A structure for preventing a thin plate from falling is configured to support a thin plate on a stripping machine to move forward. Wherein, a first wheel set is disposed between a front conveying section and a rear conveying section of the stripping machine, and a first shaft of the first wheel set is coupled to a plurality of first sleeves having a first interval; and a roller set at a front end of the rear conveying section is located at a rear end of the first wheel set, and a second shaft of the roller set is coupled to a plurality of rollers having a second interval. The structure for preventing a thin plate from falling comprises a plurality of supporting members, and each of the supporting members has a supporting portion. A front sleeving portion at one end of the supporting portion is sleeved downwardly on the first shaft in the first interval, and rear sleeving portion at the other end of the supporting portion is sleeved downwardly on the second shaft in the second interval, such that the supporting portions provide upward support for a moving-forward thin plate.

Description

 Prevent thin plate from falling off structure  

The present invention relates to a structure for preventing the falling of a thin plate, and more particularly to a method for smoothly moving a thin plate such as a printed circuit board from above the conveying section of the stripping machine to above the rear conveying section.

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 when the thickness of the printed circuit board is 0.124 mm or more, since it has sufficient strength and is not easily bent, it can be easily crossed from the front conveying section to the rear conveying section. However, as the process progresses, a thinner printed circuit board is required, and when the thickness is thinner, the printed circuit board is more likely to be deflected, and thus, according to the arrangement of the existing front conveying section and the rear conveying section. During the advancement of the printed circuit board, the front end of the printed circuit board easily protrudes into the space between the front conveying section and the rear conveying section due to downward bending.

Furthermore, since the thickness of the substrate itself is not large, it is easy to have uneven bending. 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 since the thickness of the film is very Thin and fragile, therefore, 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 area of the film chip is too small to be It has been detected that this phenomenon will result in the substrate being scrapped during the entire manufacturing process of the printed circuit board.

In view of the above, in order to provide a structure different from the conventional technology and to improve the above disadvantages, the inventors have accumulated many years of experience and continuous development and improvement, and the present invention has been produced.

SUMMARY OF THE INVENTION One object of the present invention is to provide a structure for preventing the falling of a thin plate, which can solve the problem that the conventional film stripping machine can easily protrude into the front conveying section and the rear side due to the downward bending of the printed circuit board after the film is peeled off. In the interval between the conveying sections, the problem of scrapping the printed circuit board is caused, and the printed circuit board can be smoothly moved to effectively avoid material waste caused by the scrapping of the printed circuit board.

Another object of the present invention is to provide a structure for preventing the falling of a thin plate, which can solve the problem that the peeling force of the conventional film stripping machine is different due to the difference in the position of the adhesive film of the straight cylindrical adhesive wheel, and because the thickness of the film is thin and It is fragile and cannot smoothly and comprehensively peel off the film, 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 good quality. rate.

In order to achieve the above object, the thin plate falling prevention structure of the present invention is for supporting a thin plate on a stripping machine, wherein one end of the stripping machine input thin plate is defined as a front end of the stripping machine, and one end of the output sheet is defined At the rear end of the stripping machine, the front end of the stripping machine has a front conveying section for conveying the sheet to move along the conveying direction from the front end toward the rear end, peeling off the film by a stripping unit, and letting the sheet continue to extend one after another The conveying section is transported backwards. The main technical feature is that a first wheel set is located between the front conveying section and the rear conveying section, the first wheel set has a first shaft, and the first shaft shaft is connected with a plurality of first sets having a first interval. The front end of the rear conveying section has a roller set, the roller set is located at the rear end of the first wheel set, and the roller set has a second shaft, the second shaft shaft is connected with a plurality of rollers having the second interval; and, preventing The thin plate drop structure comprises a plurality of support members, the support member has a support portion, and the front sleeve portion and the rear sleeve portion are respectively disposed at two ends of the support portion, and the front sleeve portion is sleeved downwardly in the first interval On a shaft, the rear sleeve is sleeved down on the second shaft in the second interval, so that the support portion forms an upward support for the advancing sheet.

In practice, the front ferrule is a set of rings, and the bottom of the front ferrule has a first notch for the first shaft to pass through to be sleeved down on the first shaft.

In practice, the rear sleeve portion is a set of rings, and the bottom of the rear sleeve portion has a second gap for the second shaft to pass through to sleeve down on the second shaft.

In implementation, the stripping unit comprises a first pulley set and a second pulley set, the first pulley set comprises the first wheel set, a second wheel set and a plurality of first belts, and the second wheel set has a plurality of coaxial a second sleeve having a spacing, the plurality of first belts respectively surrounding the plurality of first sleeves and the plurality of second sleeves corresponding to the plurality of first sleeves; the second pulley set includes a third wheel set, a fourth wheel set and a plurality of second belts, the third wheel set has a plurality of coaxially spaced third sleeves, the fourth wheel set has a plurality of coaxially spaced fourth sleeves, and the plurality of second belts respectively Surrounding a plurality of third sleeves and a plurality of fourth sleeves corresponding to the plurality of third sleeves; the first pulley set is adjacent to the second pulley set, and the first pulley set and the second pulley set are opposite directions Rotating, whereby the film is sandwiched between a plurality of first belts and a plurality of second belts to peel the film from one end edge of the film.

In implementation, the support portion of the support member includes a horizontal portion and an upright portion extending downward from one end of the horizontal portion, and the other end of the horizontal portion is downwardly connected to the rear sleeve portion, and the upright portion is downwardly connected to the front sleeve portion.

In implementation, the stripping unit further includes a third pulley set and a fourth pulley set, wherein the third pulley set and the fourth pulley set are vertically opposed to the upper side of the first pulley set and the second pulley set, and the third pulley The group and the fourth pulley set are rotated in opposite directions to peel the film above the sheet.

In order to further understand the present invention, the specific embodiments of the present invention and the effects achieved thereby are described in detail below with reference to the drawings and drawings.

1‧‧‧Preventing thin plate drop structure

10‧‧‧Support

101‧‧‧Support

102‧‧‧ horizontal department

103‧‧‧Upright Department

104‧‧‧Front Sockets

105‧‧‧ first gap

106‧‧‧ rear socket

107‧‧‧ second gap

11‧‧‧Strip machine

12‧‧‧Sheet

121‧‧‧film

13‧‧‧Pre-conveying section

14‧‧‧Blocking unit

15‧‧‧Clamping unit

16‧‧‧ embossing wheel

17‧‧‧post conveyor section

18‧‧‧Striping unit

19‧‧‧Roller set

191‧‧‧Second shaft

192‧‧‧second interval

193‧‧‧Roller

21‧‧‧First pulley set

211‧‧‧First round

212‧‧‧Second round

213‧‧‧First belt

214‧‧‧First shaft

215‧‧‧ first interval

216‧‧‧First sleeve

217‧‧‧Second sleeve

22‧‧‧Second pulley set

221‧‧‧The third round

222‧‧‧ fourth round

223‧‧‧Second belt

224‧‧‧ Third sleeve

225‧‧‧fourth sleeve

23‧‧‧ Third pulley set

231‧‧‧ Third belt

24‧‧‧Fourth pulley set

241‧‧‧fourth belt

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side elevational view of a preferred embodiment of the present invention mounted on a stripper.

Figure 2 is an exploded view of the components of the preferred embodiment of the present invention prior to installation of the first wheel set and the roller set.

Figure 3 is a perspective view of the preferred embodiment of the present invention after being mounted to the first wheel set and the roller set.

Figure 4 is a schematic view showing the state of use of the preferred embodiment of the present invention.

Referring to FIG. 1, the present invention prevents the thin plate falling structure 1 from advancing the thin plate 12 supporting the stripping machine 11, and the stripping machine 11 is capable of peeling off at least one film 121 on the thin plate 12 such as a printed circuit board. . When implemented, one end of the stripping machine 11 input thin plate 12 is defined as the stripping machine 11 and the front end of the thin plate 12, one end of the output thin plate 12 is defined as the stripping machine 11 and the rear end of the thin plate 12, and the front end of the stripping machine 11 has a front conveying The segment 13 is provided for transporting the sheet 12 so as to be moved in the 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 121 via a set of embossing wheels 16 to form a wrinkle at the rear end edge of the film 121, and then peeled off by a stripping unit 18. The film is moved and the sheet 12 continues to extend and the transport section 17 moves rearward. The sheet slip preventing structure 1 of the present invention is connected between the roller group 19 at the front end of the rear conveying section 17 and the stripping unit 18. The stripping unit 18 includes a first pulley set 21, a second pulley set 22, a third pulley set 23 and a fourth pulley set 24.

The first pulley set 21 includes a first wheel set 211, a second wheel set 212 and a plurality of first belts 213. The first wheel set 211 is located between the front conveying section 13 and the rear conveying section 17, and the first wheel set 211 has a first shaft 214, and the first shaft 214 is axially connected with a plurality of first sleeves having a first interval 215. The second wheel set 212 has a plurality of coaxial and spaced second sleeves 217, and the plurality of first belts 213 respectively surround the plurality of first sleeves 216 and the plurality of first sleeves 216 Second sleeve 217.

The second pulley set 22 includes a third wheel set 221, a fourth wheel set 222 and a plurality of second belts 223. The third wheel set 221 is located between the first wheel set 211 and the front transport section 13, the first wheel set 211 is located between the third wheel set 221 and the roller set 19 at the front end of the rear transport section 17, the top end of the third wheel set 221, the top surface of the front transport section 13 and the top end of the roller set 19 are summarized on the same horizontal plane, and the first The height of the wheel set 211 is lower than the height of the third wheel set 221, the front transport section 13, and the roller set 19. In addition, the third wheel set 221 has a plurality of coaxial and spaced third sleeves 224, the fourth wheel set 222 has a plurality of coaxial and spaced fourth sleeves 225, and the plurality of second belts 223 respectively surround the plurality of The third sleeve 224 and the plurality of fourth sleeves 225 corresponding to the plurality of third sleeves 224. The second pulley set 22 is adjacent to the first pulley set 21, and the first pulley set 21 and the second pulley set 22 are rotated in opposite directions, whereby the film 121 is sandwiched between the plurality of first belts 213 and the plurality of second belts 223 The film 121 on the bottom surface of the thin plate 12 is peeled off between the end edges of the thin plate 12.

The third pulley set 23 and the fourth pulley set 24 are vertically opposed to the upper side of the first pulley set 21 and the second pulley set 22, and the third pulley set 23 and the fourth pulley set 24 are rotated in opposite directions, thereby When the first pulley group 21 and the second pulley group 22 peel off the film 121 on the bottom surface of the thin plate 12, the film 121 on the top surface of the thin plate 12 is simultaneously peeled off.

Referring to Figures 2 and 3, the roller set 19 at the front end of the rear conveying section 17 has a second shaft 191 which is axially coupled to a plurality of rollers 193 having a second spacing 192. The preferred embodiment of the present invention for preventing the thin plate drop structure 1 is composed of a plurality of support members 10, each of which has a support portion 101, and the support portion 101 is substantially in an inverted "L" shape, including a The horizontal portion 102 and the upright portion 103 extending downward from the front end of the horizontal portion 102, the upright portion 103 is downwardly connected to a front sleeve portion 104, and the front sleeve portion 104 is a "C" shaped collar, the front sleeve portion A first notch 105 is formed at the bottom of the 104, so that after the first shaft 214 passes through the first notch 105, the front sleeve portion 104 is sleeved downwardly in the first interval 215 of the first wheel set 211. On the shaft 214. The rear end portion of the horizontal portion 102 is connected downwardly to a rear sleeve portion 106. The rear socket portion 106 is a "C" shaped collar, and the bottom portion of the rear socket portion 106 forms a second notch 107, thereby being on the second axis. After the rod 191 passes through the second notch 107, the rear sleeve portion 106 is sleeved down on the second shaft 191 in the second interval 192 of the roller set 19. In practice, the first wheel set 211 can also be separated from the first pulley set 21 as a single existing component.

Therefore, as shown in FIG. 4, after the film 121 of the thin plate 12 is rolled by the embossing wheel 16 to form a wrinkle at the front edge of the film 121, the first belt 213 and the second belt 223 are rotated in the opposite direction via the multiple arrays. The plurality of elastic squeezing units formed by the third belt 231 and the fourth belt 241 which are rotated in the opposite direction of the complex array, whether the flat sheet 12 or the uneven sheet 12, can form an effective clamping force. The film 121 on the bottom surface of the thin plate 12 is interposed between the plurality of first belts 213 and the plurality of second belts 223, so that the film 121 is smoothly peeled off after the end edge of the film 121. At the same time, the film 121 on the top surface of the thin plate 12 is sandwiched between the plurality of third belts 231 and the plurality of fourth belts 241 to smoothly peel off the film 121. When the thin plate 12 is peeled off the film 121 and moved in the direction of the transport section 17, the plurality of support portions 101 of the plurality of support members 10 simultaneously support the advancing thin plate 12, thereby allowing the thin plate 12 to be smoothly smoothed. The movement is made above the rear conveying section 17 to complete the peeling operation of the film 121.

Therefore, this creation has the following advantages:

1. This creation enables a very thin printed circuit board sheet to smoothly move to the rear conveying section after the film is peeled off, so as to complete the conveying process after the film peeling, thereby effectively avoiding material waste caused by the scrapping of the printed circuit board. .

2. This creation can smoothly and comprehensively peel the film of the printed circuit board sheet, and does not allow some of the film chips to adhere to the surface of the sheet, thereby improving product quality and increasing yield.

In summary, according to the above disclosure, the creation can achieve the intended purpose, providing a smooth and comprehensive film for the thin strip of the printed circuit board to gradually improve the quality of the product and make it thinner. The printed circuit board sheet can be smoothly and continuously moved to avoid the waste of material and prevent the thin plate from falling off the structure, which is of great value in the industry, and the invention patent application is filed according to law.

Claims (6)

 A structure for preventing a thin plate from falling, for supporting a thin plate on a stripping machine, wherein one end of the stripping machine input sheet is defined as a front end of the stripping machine, and one end of the output sheet is defined as a rear end of the stripping machine The front end of the stripping machine has a front conveying section for conveying the thin plate to move along the conveying direction from the front end toward the rear end, stripping the film by a stripping unit, and allowing the thin sheet to continue to be conveyed backward after the conveying section. The first wheel set is located between the front conveying section and the rear conveying section, the first wheel set has a first shaft, and the first shaft shaft is connected with a plurality of first intervals. a sleeve; the front end of the rear conveying section has a roller set, the roller set is located at the rear end of the first wheel set, and the roller set has a second shaft, and the second shaft has a plurality of second shafts And a plurality of support members, the support member has a support portion, and a front sleeve portion and a rear sleeve portion are respectively disposed at two ends of the support portion, and the front sleeve is respectively provided The part is sleeved down in the first interval The first shaft rod, the rear sleeve portion sleeved down to the second shaft rod within the second interval, so as to allow the forward portion of the support sheet is formed upwardly of the support.    The anti-sheet falling structure according to claim 1, wherein the front sleeve portion is a set of rings, and the bottom portion of the front sleeve portion has a first gap for the first shaft to pass through. The sleeve is sleeved down on the first shaft.    The anti-sheet falling structure according to claim 1, wherein the rear sleeve portion is a set of rings, and the bottom portion of the rear sleeve portion has a second notch for the second shaft to pass through. The sleeve is sleeved down on the second shaft.    The thin plate falling prevention structure according to the first aspect of the invention, wherein the stripping unit comprises a first pulley set and a second pulley set, the first pulley set including the first wheel set, a first a second wheel set and a plurality of first belts, the second wheel set having a plurality of coaxially spaced second sleeves, the plurality of first belts respectively surrounding the plurality of first sleeves and corresponding to the plurality of a plurality of second sleeves of a sleeve; the second pulley set includes a third wheel set, a fourth wheel set and a plurality of second belts, the third wheel set having a plurality of coaxially spaced thirds a sleeve having a plurality of coaxially spaced fourth sleeves, the plurality of second belts respectively surrounding the plurality of third sleeves and the plurality of corresponding plurality of first main sleeves a fourth sleeve; the first pulley set is adjacent to the second pulley set, and the first pulley set and the second pulley set are rotated in opposite directions, thereby clamping the film to the plurality of first belts and the Between the plurality of second belts, the film is stretched The film is peeled off at one end edge.    The sheet preventing fall structure according to any one of claims 1 to 4, wherein the support portion of the support member comprises a horizontal portion and an upright portion extending downward from one end of the horizontal portion. The other end of the horizontal portion is connected downward to the rear socket portion, and the upright portion is connected downward to the front socket portion.    The anti-sheet falling structure of claim 4, wherein the stripping unit further comprises a third pulley set and a fourth pulley set, and the third pulley set and the fourth pulley set are reversed Corresponding to the upper portion of the first pulley set and the second pulley set, and the third pulley set and the fourth pulley set are rotated in opposite directions, thereby peeling off the film above the thin plate.