CN111800952A - Adjustable film tear-off structure - Google Patents

Abstract

The invention provides an adjustable film peeling structure, which comprises an upper film stripper, a left support frame, and a right support frame. The wheel set includes a first lower wheel rod and a second lower wheel rod, two ends of a plurality of first belts respectively surround the first upper wheel rod and the first lower wheel rod, and two ends of a plurality of second belts respectively surround the second upper wheel rod A wheel rod and a second lower wheel rod; and the first middle wheel rod, the second middle wheel rod, and the third middle wheel rod of an intermediate wheel set press against the middle positions of the plurality of first belts and the second belts respectively, so that more The first belt and the second belt are bent and extended upward at an angle for peeling off the thin film on a film stripper, while the left support frame and the right support frame are located on both sides of the film stripper, respectively. and the right ends are respectively connected to the left support frame and the right support frame, and at least one middle wheel rod can be positioned after horizontal movement.

Description

Adjustable film tear-off structure

technical field

The invention relates to an adjustable film peeling structure of a film peeling machine, in particular to a method that can adjust the tightness or adjacent gaps between a plurality of first belts and a plurality of second belts, so as to effectively clamp the film and Smoothly drive the film to move.

Background technique

In the manufacturing process of printed circuit boards, before the substrate is exposed, a photoresist layer and a film adhered to the surface of the photoresist layer are respectively formed on the upper and lower surfaces of the substrate. The resist layer is exposed for subsequent development and etching procedures. However, the existing method of peeling the film by the peeling machine mainly conveys the above-mentioned thin plate such as the printed circuit board through a front conveying section, so as to move along the conveying direction from front to back, and the thin plate is blocked and positioned by a blocking unit. After rolling on the surface of the film by a set of embossing wheels, the sheet will continue to be transported backward along a rear conveying section, and the film with wrinkles at the front edge will be gradually peeled off by a set of sticking wheels.

However, since the thickness of the general substrate itself is not large, it is easy to bend unevenly. When the long straight cylindrical adhesive wheel with the same outer diameter adheres the film, the adhesive force of each adhesive position is not exactly the same, and the thickness of the film is very thin. And fragile, therefore, it is often impossible to gradually peel off the film smoothly and comprehensively, and there will still be part of the film chip adhered to the surface of the photoresist layer, and often because the area of the film chip is too small to be removed. It has been detected that this phenomenon will result in the substrate being scrapped throughout the manufacturing process of the printed circuit board.

Therefore, as shown in the Chinese Taiwan No. I652172 patent for film peeling structure, a solution is provided, which mainly includes an upper film peeling member, and the upper film peeling member includes an adjacent first film. An upper pulley set and a second upper pulley set, and the first upper pulley set and the second upper pulley set rotate in opposite directions, so as to sandwich the film between the plurality of first belts and the plurality of second belts, so that the film along the The leading edge of the film peels off the film.

However, in the actual film peeling process, since the tightness between the first upper pulley group and the second upper pulley group is fixed, after the belt is used for a period of time, the clamping force of the film is likely to weaken, which will affect the The smooth movement of the film; in addition, for films of different thicknesses, the use of the two pulley sets with a fixed gap is also limited, and even the expected effect cannot be achieved.

SUMMARY OF THE INVENTION

In view of this, in order to provide a structure that is different from the prior art and improve the above-mentioned shortcomings, the inventor has accumulated many years of experience and continuous research and development and improvement, and the present invention is born.

An object of the present invention is to provide an adjustable film tear-off structure, which can solve the problem of fixing the tightness or gap between the plurality of first belts and the plurality of second belts in the film tear-off structure in the prior art, so that the film The clamping force is weakened, which affects the smooth movement of the film, and it cannot be effectively applied to the clamping and movement of films of different thicknesses, and the tightness or adjacentness between the plurality of first belts and the plurality of second belts can be improved The gap can be changed as required, so as to maintain proper clamping force to effectively clamp the film and smoothly drive the film to move.

In order to achieve the purpose of the above invention, the adjustable film peeling structure provided by the present invention is used to peel off the thin film on a film peeling machine. The front end of the film peeling machine has a front conveying section for conveying the thin plate. Hold the blocking position of the unit, and then roll the film on the surface of the film through a set of embossing wheels, so that the sheet continues to be conveyed backwards along the rear conveying section, and at the same time pass through the multiple first belts and multiple second belts of the upper film stripper. The main technical feature is that the adjustable film peeling structure of the present invention includes the upper film peeling member, and the upper film peeling member also includes an upper wheel group, an intermediate wheel group and a lower wheel group. The upper wheel set includes a first upper wheel rod and a second upper wheel rod that are juxtaposed at intervals and rotate in opposite directions, and the lower wheel set includes a first lower wheel rod and a second lower wheel rod that are juxtaposed at intervals and rotate in opposite directions. The two ends of the first belt respectively surround the first upper wheel rod and the first lower wheel rod, and the two ends of the plurality of second belts respectively surround the second upper wheel rod and the second lower wheel rod; The wheel rod, the second middle wheel rod and the third middle wheel rod, the first middle wheel rod, the second middle wheel rod and the third middle wheel rod respectively press against the middle positions of the plurality of first belts and the plurality of second belts, Thereby, the plurality of first belts and the plurality of second belts first extend upward in the direction of the front end of the film tearing machine, and then extend upward at an angle toward the rear end direction of the film tearing machine; The support frame, the other side of the film stripping machine is provided with a right support frame, the left and right ends of the first middle wheel rod, the second middle wheel rod and the third middle wheel rod are respectively connected to the left support frame and the right support frame, and The second middle wheel bar and/or the third middle wheel bar can be moved horizontally forward or rearwardly relative to the first middle wheel bar for positioning.

When implemented, the present invention also includes a left positioning plate and a right positioning plate, the left positioning plate is connected to the left support frame in a manner that can be moved relatively horizontally and then positioned, and the left positioning plate has a first left positioning hole and a second left positioning hole for corresponding Position the left end of the first middle wheel rod and the left end of the second middle wheel rod; the right positioning plate is connected to the right support frame in a manner that can be relatively horizontally moved and positioned, and the right positioning plate has a first right positioning hole and a second right positioning hole, For positioning the right end of the first middle wheel rod and the right end of the second middle wheel rod correspondingly.

During implementation, the left support frame has a left guide groove, the left end of the first middle wheel rod and the left end of the second middle wheel rod pass through the left guide groove at the same time, and are fixed on the left support frame with at least one left collar.

In another adjustable film tear-off structure provided by the present invention, the left and right ends of the first middle wheel rod, the second middle wheel rod and the third middle wheel rod are respectively connected to the left support frame and the right support frame, and The first middle wheel rod, the second middle wheel rod and the third middle wheel rod can be moved horizontally forward or backward relative to the left support frame and the right support frame at the same time and then positioned.

When implemented, the above-mentioned adjustable film tear-off structure also includes a left positioning plate and a right positioning plate, the left positioning plate is connected to the left support frame in a manner that can be relatively horizontally moved and positioned, and the left positioning plate has a first left positioning hole, a second left positioning plate, and a left positioning plate. The two left positioning holes and the third left positioning hole are used for corresponding positioning of the left end of the first middle wheel rod, the left end of the second middle wheel rod and the left end of the third middle wheel rod; the right positioning plate can be positioned horizontally after positioning. Connecting the right support frame, the right positioning plate has a first right positioning hole, a second right positioning hole and a third right positioning hole for corresponding positioning of the right end of the first middle wheel rod, the right end of the second middle wheel rod and the third middle wheel right end of the rod.

During implementation, the above-mentioned left support frame has a left guide groove, the left end of the first middle wheel rod, the left end of the second middle wheel rod and the left end of the third middle wheel rod pass through the left guide groove at the same time, and at least one left ring Fixed on the left support frame.

During implementation, the left support frame further has an upper guide groove and a lower guide groove, the upper guide groove and the lower guide groove are respectively parallel to the left guide groove, and are respectively located at the upper and lower ends of the left guide groove; the upper and lower ends of at least one left collar Use at least one screw to pass through the upper guide slot and the lower guide slot respectively to connect the left positioning plate.

During implementation, the present invention further includes a positioning piece, which connects the left support frame and the left positioning plate, and is positioned on the left support frame after the left positioning plate moves relatively horizontally.

During implementation, one side of the left positioning plate is provided with a first curved plate, one side of the left support frame is provided with a second curved plate, one end of the positioning member is connected to the first curved plate, and the other end of the positioning member is connected to the second curved plate, And the positioning member is a combination of a bolt and a nut.

Description of drawings

1 is a schematic diagram of a preferred embodiment of the present invention being installed on a film stripper in use;

Fig. 2 is the three-dimensional appearance schematic diagram of the preferred embodiment of the present invention installed on the film stripping machine;

FIG. 3 is an exploded view of some components of the preferred embodiment of the present invention;

FIG. 4 is a schematic diagram of a use state of a preferred embodiment of the present invention.

Description of reference numerals

Adjustable film peeling structure 1 Film peeling machine 10

Left support plate 101 Thin plate 11

Film 111, 112 Front conveying section 12

Blocking unit 13 Clamping unit 14

Embossing wheel 15 Blowing unit 16

Rear conveying section 17 Upper accommodating box 18

Lower film stripper 19 First lower pulley set 191

The second lower pulley set 192 The upper film stripper 2

First belt 21 Second belt 22

Upper wheel set 23 First upper wheel rod 231

Second upper wheel rod 232 Intermediate wheel set 24

The first middle wheel rod 241 The second middle wheel rod 242

The third middle wheel rod 243 The lower wheel group 25

The first lower wheel rod 251 The second lower wheel rod 252

Left support bracket 3 Left guide slot 31

Upper guide groove 32 Lower guide groove 33

Second bent plate 34 Left positioning plate 4

The first left positioning hole 41 The second left positioning hole 42

The third left positioning hole 43 The first bent plate 44

Positioning piece 45 Right support frame 5

Right positioning plate 6 First right positioning hole 61

The second right positioning hole 62 is for the left collar 7 .

Detailed ways

1, the adjustable film peeling structure 1 of the present invention is used for peeling off at least one film 111, 112 of a thin plate 11 on the film peeling machine 10, and the thin plate 11 is a board such as a printed circuit board. During implementation, one end of the input sheet 11 of the film tearing machine 10 is defined as the front end of the film tearing machine 10, the other end of the output sheet 11 is defined as the rear end of the film tearing machine 10, and the front end of the film tearing machine 10 has a front conveying section 12, The conveying sheet 11 is moved in the conveying direction from the front end to the rear end of the film tearing machine 10 . The thin plate 11 is positioned by a blocking unit 13 and a clamping unit 14, and then rolled on the surface of the film 111 by a set of embossing wheels 15 to form wrinkles on the front edge of the film 111, and then blown by an air blowing unit 16. , let the sheet 11 continue to move backwards along a rear conveying section 17 to peel off the film 111, and at the same time, through the clamping of the plurality of first belts 21 and the plurality of second belts 22 of the upper film peeling member 2 to peel off the upper side of the sheet 11. The film 111 is dropped into an upper accommodating box 18 . The upper film stripping member 2 and the lower film stripping member 19 are respectively located at the upper and lower ends of the rear conveying section 17; and the lower film stripping member 19 includes the adjacent first lower belt pulley group 191 and the second lower belt pulley group 192. The lower pulley set 191 and the second lower pulley set 192 rotate in opposite directions, so as to clamp and drive the film 112 downward, so that the film 112 falls into the lower accommodating box below the lower film stripper 19 .

Please refer to FIG. 2 to FIG. 4 , which is a preferred embodiment of the adjustable film peeling structure 1 of the present invention, which mainly includes an upper peeling member 2 , a left support frame 3 , a left positioning plate 4 , and a right support The frame 5 and a right positioning plate 6, wherein the upper film stripping member 2 also includes an upper wheel group 23, an intermediate wheel group 24 and a lower wheel group 25. The upper wheel group 23 includes a first upper wheel rod 231 and a second upper wheel rod 232 that are juxtaposed at intervals and rotate in opposite directions; The wheel bar 252, the upper and lower ends of the plurality of first belts 21 arranged at intervals surround the first upper wheel bar 231 and the first lower wheel bar 251 respectively, and the upper and lower ends of the plurality of second belts 22 arranged at intervals The second upper wheel rod 232 and the second lower wheel rod 252 are respectively surrounded. The middle wheel set 24 is located in front of the middle of the upper wheel set 23 and the lower wheel set 25 . The middle wheel set 24 includes a first middle wheel rod 241 , a second middle wheel rod 242 and a third middle wheel rod juxtaposed at intervals. 243, the first middle wheel rod 241 is accommodated in the first belt 21, the second middle wheel rod 242 is accommodated in the second belt 22, and the third middle wheel rod 243 presses forward and laterally against the second belt 22, three The wheel rods are juxtaposed at a horizontal interval, and the first middle wheel rod 241 , the second middle wheel rod 242 and the third middle wheel rod 243 press against the intermediate positions of the plurality of first belts 21 and the plurality of second belts 22 respectively, so that the The plurality of first belts 21 and the plurality of second belts 22 are from bottom to top, and firstly extend upward obliquely from the front end of the film tearing machine 10 , and then extend upward at an obtuse angle toward the rear end direction of the film tearing machine 10 .

The left support frame 3 is a rectangular bent plate, the bottom edge of the left support frame 3 is connected to the top of a left support plate 101 on the left side of the film stripper 10, and the plate surface of the left support frame 3 has an elongated left guide groove. 31. The upper and lower ends of the left guide groove 31 are respectively provided with an upper guide groove 32 and a lower guide groove 33. The upper guide groove 32, the lower guide groove 33 and the left guide groove 31 are parallel to each other, and one side of the left support frame 3 is bent. folded to form a second bent plate 34 .

The left positioning plate 4 is a rectangular bending plate. The plate surface of the left positioning plate 4 has a first left positioning hole 41, a second left positioning hole 42 and a third left positioning hole 43 arranged at intervals in the horizontal direction. The left positioning plate 4 One side is bent to form a first bent plate 44 . When the left positioning plate 4 is in close contact with the left support frame 3 , the first bent plate 44 and the second bent plate 34 are parallel to each other. One end of a bolt is connected to the plate surface of the first curved plate 44, and the other end of the bolt is locked with a nut after passing through the second curved plate 34, so that the first curved plate 44 and the second curved plate are connected 34 to maintain a certain distance; during implementation, there can also be nuts on the surface of the first curved plate 44, and after the bolts pass through the second curved plate 34 and the first curved plate 44 in sequence, turn the head of the bolt to adjust And fix the horizontal distance between the first bent plate 44 and the second bent plate 34 ; the combination of the bolt and the nut is set as a positioning member 45 .

The left end of the first middle wheel rod 241 , the left end of the second middle wheel rod 242 and the left end of the third middle wheel rod 243 respectively pass through the first left positioning hole 41 , the second left positioning hole 42 and the third left positioning hole 41 of the left positioning plate 4 . After the left positioning hole 43, pass through the elongated left guide groove 31 of the left support frame 3 at the same time, the left ends of each middle wheel rod are respectively sleeved with a left collar 7, and the upper and lower parts of the three left collars 7 After the lower ends pass through the upper guide groove 32 and the lower guide groove 33 respectively with screws, the left support frame 3 and the left positioning plate 4 are connected together, and the left positioning plate 4, the left end of the first middle wheel rod 241, The left end of the second middle wheel rod 242 and the left end of the third middle wheel rod 243 can be positioned after horizontally moving forward or backward relative to the left support frame 3 at the same time.

The right support frame 5 and the left support frame 3 have corresponding shapes, the right positioning plate 6 and the left positioning plate 4 have corresponding shapes, and the right support frame 5 and the right positioning plate 6 are respectively connected and fixed to the film stripping machine 10. The left and right sides, whereby the right positioning plate 6, the right end of the first middle wheel rod 241, the right end of the second middle wheel rod 242 and the right end of the third middle wheel rod 243 can be supported relative to the right at the same time. The frame 5 is positioned after moving horizontally forward or backward. After the synchronous movement and positioning of the left positioning plate 4, the left end of the first middle wheel rod 241, the left end of the second middle wheel rod 242 and the left end of the third middle wheel rod 243, the plurality of first belts 21 and the The tightness or adjacent gaps between the plurality of second belts 22 can maintain a proper clamping force, effectively clamp the film 111 and smoothly drive the film 111 to move.

In another embodiment, the left and right ends of the third middle wheel rod 243 can also be fixed on the left support frame 3 and the right support frame 5. During implementation, the left and right ends of the third middle wheel rod 243 It can also be directly fixed on the left and right sides of the peeling machine 10 . The left positioning plate 4 has a first left positioning hole 41 and a second left positioning hole 42 for correspondingly positioning the left end of the first middle wheel rod 241 and the left end of the second middle wheel rod 242, while the right positioning plate 6 has a first right positioning hole. The hole 61 and the second right positioning hole 62 are used to position the right end of the first middle wheel rod 241 and the right end of the second middle wheel rod 242 correspondingly, so that the left positioning plate 4 can be positioned relative to the left support frame 3 after horizontal movement. On the left support frame 3 , at the same time, the right positioning plate 6 can be positioned on the right support frame 4 after being horizontally moved relative to the right support frame 4 . In addition, the first middle wheel rod 241, the second middle wheel rod 242 and the third middle wheel rod 243 can also move horizontally relative to the left support frame 3 and the right support frame 5 independently, and are separately fixed on the upper left support frame 3 and the right support frame 5. On the support frame 5, the closeness or the adjacent gap between the plurality of first belts 21 and the plurality of second belts 22 can also be adjusted.

Therefore, the present invention has the following advantages:

1. The first middle wheel rod, the second middle wheel rod and the third middle wheel rod of the present invention can move horizontally independently, or the first middle wheel rod and the second middle wheel rod can move horizontally at the same time, or the three middle wheel rods can move horizontally. The rod moves horizontally at the same time, therefore, the tightness or adjacent gap between the multiple first belts and the multiple second belts can be changed as required, so as to maintain a proper clamping force to effectively clamp the film and smoothly. Drive the film to move.

2. The present invention can adjust and fix the relative horizontal distance between the support frame and the positioning plate through a positioning member, so the first middle wheel rod, the second middle wheel rod and the third middle wheel can be controlled more conveniently and accurately. The horizontal movement distance of the rod, and after the three middle wheel rods are moved and positioned, can effectively avoid moving again due to the pressure of each belt, so that the three middle wheel rods can form a stable support.

To sum up, according to the content disclosed above, the present invention can clearly achieve the intended purpose, providing a kind of clamping force that can adjust the clamping force between the belts, so as to effectively clamp the film and smoothly drive the film to move, and Adjustable film tear-off structure that allows each middle wheel rod to form a firm support.

Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims (9)

1. An adjustable film peeling structure for peeling off a thin film on a film peeling machine, wherein one end of the input sheet is defined as the front end of the film tearing machine, and the other end of the output sheet is defined as the rear of the film tearing machine. The front end of the film tearing machine has a front conveying section. The front conveying section is used for conveying the sheet to move along the conveying direction from the front end to the rear end. The sheet is blocked and positioned by a blocking unit and a clamping unit, and then passes through a set of After the embossing wheel rolls on the surface of the film, the sheet continues to be conveyed backward along a rear conveying section, and the film above the sheet is peeled off by the clamping of multiple first belts and multiple second belts of an upper film stripper. , which is characterized by: The adjustable film peeling structure includes the upper film stripper, the upper film stripper further includes an upper wheel set, an intermediate wheel set and a lower wheel set, the upper wheel set includes a first wheel set that is juxtaposed at intervals and rotates in opposite directions an upper wheel rod and a second upper wheel rod, the lower wheel set includes a first lower wheel rod and a second lower wheel rod that are spaced and juxtaposed and rotate in opposite directions, the two ends of the plurality of first belts respectively surround The first upper wheel rod and the first lower wheel rod, two ends of the plurality of second belts respectively surround the second upper wheel rod and the second lower wheel rod; the middle wheel set includes a first middle wheel rod , a second middle wheel rod and a third middle wheel rod, the first middle wheel rod, the second middle wheel rod and the third middle wheel rod are respectively pressed against the plurality of first belts and the plurality of second middle wheel rods the middle position of the belt, so that the plurality of first belts and the plurality of second belts first extend upward in the direction of the front end of the film tearing machine, and then extend upward at an angle toward the rear end direction of the film tearing machine; and One side of the film stripping machine is provided with a left support frame, and the other side of the film stripper is provided with a right support frame. The right two ends are respectively connected to the left support frame and the right support frame, and the second middle wheel rod and/or the third middle wheel rod can move forward or backward horizontally relative to the first middle wheel rod for positioning. 2 . The adjustable film tear-off structure according to claim 1 , wherein the adjustable film tear-off structure further comprises a left positioning plate and a right positioning plate, and the left positioning plate can be moved relatively horizontally and then positioned. 3 . The left support frame is connected to the left support frame. The left positioning plate has a first left positioning hole and a second left positioning hole. The first left positioning hole and the second left positioning hole are respectively used for corresponding positioning of the first middle wheel rod. The left end and the left end of the second middle wheel rod; the right positioning plate can be connected to the right support frame in a relatively horizontal position after positioning, the right positioning plate has a first right positioning hole and a second right positioning hole, the first A right positioning hole and a second right positioning hole correspondingly locate the right end of the first middle wheel rod and the right end of the second middle wheel rod. 3 . The adjustable film tear-off structure as claimed in claim 2 , wherein the left support frame has a left guide groove, and the left end of the first middle wheel rod and the left end of the second middle wheel rod pass through at the same time. 4 . The left guide groove is fixed on the left support frame with at least one left collar. 4. An adjustable film peeling structure for peeling a thin film on a film peeling machine, wherein one end of the input sheet is defined as the front end of the film tearing machine, and the other end of the output sheet is defined as the rear of the film tearing machine. The front end of the film tearing machine has a front conveying section, which is used for conveying the sheet to move along the conveying direction from the front end to the rear end. The sheet is positioned by a blocking unit and a clamping unit, and then passes through a set of embossing wheels. After rolling on the surface of the film, the sheet continues to be conveyed backward along a rear conveying section, and at the same time, the film above the sheet is peeled off by the clamping of a plurality of first belts and a plurality of second belts of an upper film stripping member, which It is characterized by: The adjustable film peeling structure includes the upper film stripper, the upper film stripper further includes an upper wheel set, an intermediate wheel set and a lower wheel set, the upper wheel set includes a first wheel set that is juxtaposed at intervals and rotates in opposite directions an upper wheel rod and a second upper wheel rod, the lower wheel set includes a first lower wheel rod and a second lower wheel rod that are spaced and juxtaposed and rotate in opposite directions, the two ends of the plurality of first belts respectively surround The first upper wheel rod and the first lower wheel rod, two ends of the plurality of second belts respectively surround the second upper wheel rod and the second lower wheel rod; A middle wheel rod, a second middle wheel rod and a third middle wheel rod, the first middle wheel rod, the second middle wheel rod and the third middle wheel rod respectively press the plurality of first belts and the plurality of middle wheel rods. The middle position of the second belts, so that the plurality of first belts and the plurality of second belts first extend upward in the direction of the front end of the film tearing machine, and then extend upward at an angle toward the rear end direction of the film tearing machine ;as well as One side of the film stripping machine is provided with a left support frame, and the other side of the film stripper is provided with a right support frame. The right ends are respectively connected to the left support frame and the right support frame, and the first middle wheel rod, the second middle wheel rod and the third middle wheel rod can be relative to the left support frame and the right support frame at the same time. Position after moving horizontally forward or backward. 5 . The adjustable film tear-off structure as claimed in claim 4 , wherein the adjustable film tear-off structure further comprises a left positioning plate and a right positioning plate, the left positioning plate can be moved relatively horizontally and then positioned. 6 . The left support frame is connected to the left support frame. The left positioning plate has a first left positioning hole, a second left positioning hole and a third left positioning hole. The first left positioning hole, the second left positioning hole and the third left positioning hole The holes are respectively used for corresponding positioning of the left end of the first middle wheel rod, the left end of the second middle wheel rod and the left end of the third middle wheel rod; the right positioning plate can be connected to the right support in a way of positioning after relative horizontal movement The right positioning plate has a first right positioning hole, a second right positioning hole and a third right positioning hole, the first right positioning hole, the second right positioning hole and the third right positioning hole are respectively used for corresponding positioning The right end of the first middle wheel rod, the right end of the second middle wheel rod and the right end of the third middle wheel rod. 6 . The adjustable film tear-off structure as claimed in claim 5 , wherein the left support frame has a left guide groove, the left end of the first middle wheel rod, the left end of the second middle wheel rod and the first middle wheel rod. 7 . The left ends of the three middle wheel rods pass through the left guide groove at the same time, and are fixed on the left support frame with at least one left collar. 7. The adjustable film tear-off structure according to claim 3 or 6, wherein the left support frame further has an upper guide groove and a lower guide groove, the upper guide groove and the lower guide groove are respectively parallel to the left The guide groove is located at the upper and lower ends of the left guide groove respectively; the upper and lower ends of the at least one left collar are respectively passed through the upper guide groove and the lower guide groove with at least one screw to connect the left guide groove. Positioning plate. 8. The adjustable film peeling structure according to claim 3 or 6, wherein the adjustable film peeling structure further comprises a positioning member, the positioning member connects the left support frame and the left positioning plate, the After the left positioning plate moves relatively horizontally, it can be positioned on the left support frame. 9 . The adjustable film tear-off structure as claimed in claim 8 , wherein one side of the left positioning plate has a first curved plate, one side of the left support frame has a second curved plate, and the positioning plate has a second curved plate. 10 . One end of the piece is connected to the first curved plate, the other end of the positioning piece is connected to the second curved plate, and the positioning piece is a combination of a bolt and a nut.

Images