TW202127969A - Film suction structure which is adapted to a film peeling machine for sucking or separating the film - Google Patents

Abstract

The invention provides a film suction structure, which mainly includes a first inner suction cylinder fixedly connected to a film peeling machine and provided with at least one first air inlet at the lower half of the cylinder body of the first inner suction cylinder, in which one end of the first inner suction cylinder is connected to a suction device for sucking air into the cylinder body of the first inner suction cylinder through at least one first air inlet; and a first outer drum coaxially sleeved on the first inner suction cylinder in a manner that the first outer drum can rotate relative to the first inner suction cylinder, in which the cylinder body of the first outer drum is provided with a plurality of row holes arranged at intervals around the circumference, and any one of the first row holes has a plurality of first through holes arranged at intervals in the axial direction. When the first outer drum rotates, the plurality of first row holes in the lower half of the cylinder body of the first outer drum are communicated with or are configured to interrupt the air flow so as to suck or separate the film.

Description

Absorb the film structure

This creation is about a kind of film absorption structure, especially one that is suitable for film stripping machine, which can absorb or separate the film, and peel the film smoothly, effectively and comprehensively.

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 formed on the upper and lower surfaces of the substrate, respectively. After the exposure, the film is peeled off to make the photoresist The layer is exposed for subsequent development and etching procedures. In the early days, the film peeling machine used a front conveying section to convey the above-mentioned printed circuit board and other thin plates, so that the thin plates were moved along the conveying direction from front to back, and the thin plates were blocked and positioned by a blocking unit. After rolling on the surface of the film through a set of embossing wheels, the sheet is conveyed backward along a rear conveying section, and the wrinkled film on the front edge is gradually peeled off by a set of adhesive wheels. It was found in the actual process of peeling the film that because the thickness of the substrate itself is not large, it is prone to bend and uneven. When the long straight cylindrical adhesive wheel with the same outer diameter is adhered to the film, the adhesive force of each adhesive position is not completely the same. And because the thickness of the film is very thin and fragile, it is often unable to peel off the film smoothly and comprehensively. There will still be some thin film flakes sticking to the surface of the photoresist layer, and often due to the area of the film fragile film being too large. It is too small to be detected. This phenomenon will cause the substrate to be scrapped during the entire manufacturing process of the printed circuit board.

Therefore, in order to solve the above problems, there is currently an "automatic peeling machine", It mainly includes a conveying unit, a blocking unit, a clamping unit, a rolling unit, a first blowing unit and a film stripping unit. The method of stripping film is to transport the flat plate with the conveying unit first, then block the front edge of the flat plate with the blocking unit, and clamp and position the flat plate with the clamping unit, then move the rolling unit to roll the front edge of the flat plate to make the flat At least one wrinkle parallel to the front edge of the flat plate is generated on the front edge of at least one film, and at least one wrinkle generated by the front edge of the at least one film is blown and lifted by the first blowing unit. After the clamping unit is reset, the plate is allowed to continue to move, so that the peeling unit will peel off the at least one film along the front edge of the at least one film.

However, the above-mentioned film stripping machine is mainly suitable for the use of thick flat film peeling, but for thin plates or soft plates with a thickness of less than 0.1mm, or even 0.04mm, during the actual film peeling process, due to The film stripping unit is mainly to pull up the film in the direction perpendicular to the surface of the flat plate. It is easy to pull or roll up the entire flat plate at the same time, which will cause the substrate to be scrapped, affect the production efficiency, and even make the film stripper machine. Pieces are damaged. In view of this, in order to provide a structure that is different from the conventional technology and improve the above-mentioned shortcomings, the inventor has accumulated many years of experience and continuous research and development and improvement, and this creation was born.

One purpose of this creation is to provide a film-absorbing structure that can solve the problem of pulling or rolling up the entire flat plate at the same time during the peeling process of the thin or soft film with the conventional peeling machine, so that the film can be smooth Moreover, it is completely separated from the substrate to improve the quality of the work, increase the yield, and effectively avoid the damage of the mechanical parts caused by the rolling up of the entire plate, or the waste of materials caused by the scrap of the plate.

In order to achieve the above-mentioned purpose, the suction film structure of this creation includes a first inner suction tube and a first outer roller. The first inner suction cylinder is fixedly connected to a peeling machine Above, the lower half of the body of the first inner suction tube is provided with at least one first air intake hole, and one end of the first inner suction tube is connected with an inhalation device for inhaling air and allowing the airflow to pass through the at least one first air inlet The hole enters the inside of the barrel of the first inner suction cylinder; and the first outer drum is coaxially sleeved with the first inner suction cylinder in a rotatable manner relative to the first inner suction cylinder. The barrel of the first outer drum is provided with There are a plurality of first rows of holes arranged at intervals around the circumference, and any first row of holes has a plurality of first through holes arranged at intervals in the axial direction, so that when the first outer drum rotates, the barrel of the first outer drum The plurality of first rows of holes in the lower half communicate with at least one first air inlet of the first inner suction tube for upward suction, and the plurality of first rows in the lower half of the first outer drum body When the hole continues to rotate to the upper half of the first inner suction cylinder, the interrupted air enters the inside of the cylinder body of the first inner suction cylinder from the plurality of first rows of holes.

In implementation, the first air inlet is an arc-shaped hole opened around the lower half of the barrel of the first inner suction tube, and the plurality of first air inlets are in the axial direction of the first inner suction tube Spaced juxtaposed.

In implementation, this creation further includes a first intermediate sleeve, which is coaxially connected to the first outer roller in a manner that can move axially relative to the first outer roller, and sleeves the first inner suction cylinder; The barrel of the first middle sleeve is provided with a plurality of first middle rows of holes arranged at intervals around the circumference, and any first middle row of holes includes a plurality of first middle through holes arranged at intervals in the axial direction and having different axial lengths , And the plurality of first middle through holes of the plurality of first middle rows of holes correspond to the plurality of first through holes of the first outer drum, so that when the first middle sleeve moves axially, the plurality of first middle through holes are adjusted The state of communication with a plurality of first through holes.

In implementation, the axial middle section of the first middle row of holes has a first middle through hole with the largest length, and the other plural first middle through holes on both sides of the first middle through hole of the largest length go to the first middle through hole in a way that the length becomes shorter. The two ends of the axis of a middle row of holes are arranged at intervals.

During implementation, the outer circumference of the barrel of the first outer drum is further provided with a plurality of first grooves. Two ends of a groove are respectively connected with two adjacent first through holes of any first row of holes.

During implementation, the outer periphery of the barrel of the first outer drum is further provided with a plurality of first guide grooves, the first guide grooves are connected obliquely between the first through holes of any two adjacent parallel first rows of holes .

When implemented, this creation further includes a second inner suction cylinder and a second outer drum. The second inner suction cylinder is fixedly connected to the peeling machine and is positioned parallel to the bottom of the first inner suction cylinder. The upper half of the inner suction tube is provided with at least one second air inlet, and the second inner suction tube is connected to an air suction device for sucking air and causing the at least one second air inlet to generate negative pressure; the second outer drum is The second inner suction cylinder is coaxially connected in a rotatable manner. The cylinder body of the second outer cylinder is provided with a plurality of second rows of holes arranged at intervals around the circumference, and any second row of holes has a plurality of axially spaced apart The second through hole is used to allow the plurality of second rows of holes in the upper half of the second outer drum to communicate with at least one second air inlet of the second inner suction tube when the second outer drum rotates to supply Inhale downward, and when the second row of holes in the upper half of the second outer drum continue to rotate to the lower half of the second inner suction tube, the air is interrupted to enter the second inner through the plurality of second row of holes The inside of the cylinder of the inhaler.

When implemented, this creation further includes a second intermediate sleeve, which is coaxially connected to the second outer roller in a manner that can move axially relative to the second outer roller, and sleeves the second inner suction cylinder; The barrel of the second middle sleeve is provided with a plurality of second middle rows of holes arranged at intervals around the circumference, and any second middle row of holes includes a plurality of second middle through holes arranged at intervals in the axial direction and having different axial lengths , And the plurality of second middle through holes of the plurality of second middle rows of holes correspond to the plurality of second through holes of the second outer drum, so as to adjust the plurality of second middle through holes when the second middle sleeve moves axially The state of communication with a plurality of second through holes.

During implementation, the outer periphery of the barrel of the first outer drum is further provided with a plurality of second grooves, and both ends of the second grooves are respectively connected with two adjacent second through holes of any second row of holes.

During implementation, the outer periphery of the second outer drum is further provided with a plurality of second guide grooves, which are connected obliquely between the second through holes of any two adjacent second row of holes. .

In order to further understand the creation, the following is a preferred embodiment, in conjunction with the drawings and figure numbers, the specific content of the creation and the effects achieved are described in detail as follows.

1‧‧‧Suck film structure

2‧‧‧The first inner suction tube

21‧‧‧First air inlet

3‧‧‧The first outer roller

31‧‧‧The first row of holes

311‧‧‧First through hole

32‧‧‧First slot

33‧‧‧First guide groove

4‧‧‧The first intermediate sleeve

41‧‧‧The first middle row of holes

411‧‧‧The first middle through hole

5‧‧‧Second inner aspirator

51‧‧‧Second air inlet

6‧‧‧Second outer roller

61‧‧‧The second row of holes

611‧‧‧Second through hole

62‧‧‧Second slot

63‧‧‧Second guide groove

7‧‧‧Second intermediate sleeve

71‧‧‧The second middle row of holes

711‧‧‧Second middle through hole

9‧‧‧Film Stripping Machine

91‧‧‧Plate

911,912‧‧‧film

92‧‧‧Conveying unit

921‧‧‧Front conveying section

922‧‧‧rear conveying section

93‧‧‧Block rolling unit

94‧‧‧First blowing unit

95‧‧‧Second blowing unit

Figure 1 is a schematic flow diagram of the preferred embodiment of the creation installed on the film stripping machine.

Figure 2 is a schematic diagram of the axial cross-section of each barrel of the preferred embodiment of creation.

Figure 3 is a schematic diagram of a radial cross-section of each barrel of a preferred embodiment of creation.

Figure 4 is an exploded view of the components of each barrel of the preferred embodiment of the creation.

Figure 5 is a schematic diagram of the working state of the preferred embodiment of the creation when the film is peeled off.

Figure 6 is a schematic diagram of the use state of the preferred embodiment of the creation when adjusting the width of the suction film.

Please refer to Figure 1. The film absorption structure 1 of the present creation is used to peel off at least one film (911, 912) on the upper and lower surfaces of a flat plate 91 on a peeling machine 9. The flat plate 91 can be less than 0.1mm in thickness, or even For thin boards or flexible boards such as 0.04mm printed circuit boards. In implementation, the film stripping machine 9 further includes a conveying unit 92 and a blocking and rolling unit 93. The conveying unit 92 includes a front conveying section 921 and a rear conveying section 922. The front conveying section 921 is composed of a plurality of horizontally spaced rollers for conveying a flat plate 91 to move in the direction of the film suction structure 1. The blocking and rolling unit 93 is located at the rear end of the front conveying section 921. The plate 91 is positioned through the blocking of the blocking and rolling unit 93, and is rolled on the surface of the film (911, 912) on and under the plate 91 with a set of embossing wheels. , That is, the front edges of the upper and lower films (911, 912) are respectively formed parallel to the front edge of the flat plate 91 A crease. A first blowing unit 94 is positioned above the front end of the rear conveying section 922. The front end of the first blowing unit 94 has a first blowing port. The first blowing port is parallel to the front edge of the flat plate 91 to blow up the film 911. Wrinkles above the front edge; a second blowing unit 95 is positioned below the front end of the rear conveying section 922, and the front end of the second blowing unit 95 has a second blowing port, which is parallel to the front end of the flat plate 91 Edge, so as to blow up the wrinkles under the front edge of the film 912. When the plate 91 continues to move backward in the direction of the rear conveying section 922, the film structure 1 can be sucked to roll up the film (911, 912), separate the film (911, 912) from the substrate, and respectively fall into the containing box.

Please refer to Figures 2 to 4, which is a preferred embodiment of the creative suction film structure 1, which mainly includes a first inner suction tube 2, a first outer roller 3, and a first intermediate sleeve 4. A second inner suction cylinder 5, a second outer roller 6 and a second intermediate sleeve 7.

The first inner suction cylinder 2 is a hollow cylinder arranged horizontally and fixedly connected to the peeling machine 9. The first inner suction cylinder 2 is positioned above the rear end of the front conveying section 921 and parallel to the front edge of the flat plate 91. At least one first air inlet 21 is provided on the lower half of the cylinder body of an inner suction cylinder 2, and in this embodiment, there are a plurality of first air inlets 21, and the plurality of first air inlets 21 are The arc-shaped holes are opened around the lower half of the barrel of the first inner suction tube 2, and a plurality of first air inlet holes 21 are arranged in parallel at an axial interval of the first inner suction tube 2. One end of the first inner suction tube 2 is connected to a blower. The blower acts as an air suction device, so that when the suction device inhales air, the air outside the barrel of the first inner suction tube 2 can pass through a plurality of first The air inlet 21 enters the inside of the barrel to form a negative pressure state; when implemented, the suction device can also generate different negative pressure suction according to needs.

The first outer roller 3 is a horizontally arranged cylinder. The first outer roller 3 sleeves the first intermediate sleeve 4 and the first inner suction cylinder 2 in sequence from the outside to the inside, and the first outer roller 3 and the first One end of the intermediate sleeve 4 is connected to a transmission mechanism, so that the first outer roller 3 and the first intermediate sleeve 4 simultaneously surround the first outer roller 3 and the first intermediate sleeve 4 An inner suction tube 2 rotates coaxially. The cylinder body of the first outer drum 3 is provided with a plurality of first rows of holes 31 arranged at intervals around the circumference, and any first row of holes 31 has a plurality of first through holes 311 arranged at an axial interval, so that When the drum 3 rotates, the plurality of first row holes 31 in the lower half of the cylinder body of the first outer drum 3 communicate with the plurality of first air inlet holes 21 of the first inner suction tube 2 and allow the first outer drum The plurality of first row holes 31 in the upper half of the tube 3 are in a closed state. As a result, as shown in Figure 5, the first outer drum 3 can rotate on its own and the first row of holes 31 in the lower half of the barrel and the first inner suction tube 2 of the plurality of first air inlets When 21 is connected, the negative pressure sucks and lifts up the wrinkles above the front edge of the film 911, and synchronously drives the film 911 to roll up, and the first outer drum 3 continues to rotate but the first inner suction cylinder 2 is fixed. That is, when the plurality of first rows of holes 31 in the lower half of the cylinder body of the first outer drum 3 continue to rotate to the upper half of the first inner suction cylinder 2, the interrupted air enters the first inner through the plurality of first rows of holes 31 The inside of the cylinder body of the suction cylinder 2 closes the first row of holes 31 that were originally connected to release the negative pressure suction force, so that the front edge of the film 911 is separated from the first outer roller 3 to peel off the film 911. In addition, the outer circumference of the barrel of the first outer drum 3 is further provided with a plurality of first grooves 32 and a plurality of first guide grooves 33, wherein the two ends of the first groove 32 are respectively connected to two of the first row of holes 31 The first through holes 311 are adjacently spaced; and the first guide groove 33 is diagonally connected to any two adjacent first through holes 311 of the first row of holes 31 in an intersecting manner, so as to allow The air flow can flow between each of the first through holes 311, the first groove 32 and the plurality of first guide grooves 33 to absorb the wrinkle corners of the film 911.

The first intermediate sleeve 4 is sleeved with the first inner suction cylinder 2, and the first intermediate sleeve 4 is coaxially connected to the first outer cylinder in a manner that can move axially relative to the first outer drum 4 and the first inner suction cylinder 2. Roller 4. The barrel of the first intermediate sleeve 4 is provided with a plurality of first intermediate rows of holes 41 arranged at intervals around the circumference. Middle through hole 411, one of the first middle through holes 411 located in the middle section of the axis of any first middle row of holes 41 Has the largest length, and the other plural first middle through holes 411 of the same first middle row of holes 41 are located on both sides of the first middle through hole 411 with the largest length, and go to the first in a decreasing length The two ends of the axis of the middle row of holes 41 are arranged at intervals. The plural first middle through holes 411 of the plural first middle rows of holes 41 on the cylinder body of the first middle sleeve 4 correspond to the plural first through holes of the plural first rows of holes 31 on the cylinder body of the first outer drum 3 respectively 311. Thereby, when the plurality of first through holes 311 of the first outer drum 3 all correspond to the plurality of first middle through holes 411 of the first intermediate sleeve 4, the separation effect of the film 911 with the maximum length can be achieved; and As shown in Figure 6, when the first intermediate sleeve 4 moves axially relative to the first outer roller 3, the barrel of the first outer roller 3 will sequentially cover the two sides of the first intermediate through hole 411 with the maximum length. The plurality of first middle through holes 411 gradually shorten the length of the film 911 that can attract and separate the film 911, so as to be suitable for the flat plate 91 with a shorter horizontal width.

The second inner suction cylinder 5, the second outer roller 6 and the second intermediate sleeve 7 are corresponding to the first inner suction cylinder 2, the first outer roller 3 and the first intermediate sleeve 4 in a sleeve structure up and down. , And located below the rear end of the front conveying section 921, and parallel to the front edge of the flat plate 91 at the same time. The upper half of the second inner suction tube 5 is provided with at least one second air inlet 51, and the second air inlet 51 is opened around the upper half of the second inner suction tube 5 The arc-shaped holes, and a plurality of second air inlet holes 51 are arranged in parallel at an axial interval of the second inner suction cylinder 5, and the second inner suction cylinder 5 is connected to the suction device. The second outer drum 6 is coaxially connected to the second inner suction tube 5 in a rotatable manner. The barrel of the second outer drum 6 is provided with a plurality of second rows of holes 61 arranged at intervals around the circumference, any second row The holes 61 have a plurality of second through holes 611 arranged at intervals in the axial direction; and the second intermediate sleeve 7 is coaxially connected to the second outer roller 6 in a manner that can move axially relative to the second outer roller 6 and sleeves the second outer roller 6 Two inner suction cylinders 5; the cylinder of the second middle sleeve 7 is provided with a plurality of second middle rows of holes 71 arranged at intervals around the circumference, any second middle row of holes 71 includes a plurality of axially spaced arrangements and has The second middle through hole 711 of different axial length, the second middle row of holes 71 The middle section of the axis has a second middle through hole 711 with one of the largest lengths. The other plural second middle through holes 711 on both sides of the second middle through hole 711 of the largest length are respectively directed to the second middle row of holes 71 in a manner of decreasing length. The two ends of the axis are arranged at intervals, and the plurality of second middle through holes 711 of the plurality of second middle rows of holes 71 correspond to the plurality of second through holes 611 of the second outer drum 6. Thereby, the film 912 can be attracted and separated downward as shown in FIG. 5, and the horizontal width of the separable film 912 can be adjusted. In addition, the outer periphery of the barrel of the second outer drum 6 is further provided with a plurality of second grooves 62 and a plurality of second guide grooves 63, wherein the two ends of the second groove 62 are respectively connected to two of the second rows of holes 61 Two adjacent second through holes 611; and the second guide groove 63 is diagonally connected to the second through holes 611 of any two adjacent second row of holes 61 in a mutually intersecting manner, so as to allow The air flow can flow between each of the second through holes 611, the second groove 62 and the plurality of second guide grooves 63 to absorb the wrinkled corners of the film 912.

Therefore, this creation has the following advantages:

1. In this creation, negative pressure can be formed on the upper and lower ends to absorb the films on the upper and lower surfaces of the plate, and after the films are respectively sucked, the two films are separately wound from the substrate of the plate. Therefore, you can The film is separately rolled up symmetrically, and different negative pressure suction is generated according to the needs, so that the film can be separated from the substrate smoothly and comprehensively, so as to improve the quality of the work, increase the yield, and effectively avoid the roll up of the entire plate. The machine parts are damaged, or the material is wasted due to the scrapped plate.

2. This creation can adjust the connection state of a plurality of first middle through holes and a plurality of first through holes, and adjust the connection state of a plurality of second middle through holes and a plurality of second through holes. Therefore, it can be applied to Plates with different horizontal widths allow the suction to be effectively concentrated to save energy consumption.

3. In addition to this creation, the outer periphery of the drum body is provided with a plurality of axially spaced and intersecting air circulation channels, and each channel is connected to each through hole. Therefore, when the wrinkle corner of the film is not just right When it is located on each through hole, it can still prevent the corners of the wrinkles from lifting, so as to produce a complete The effect of full adsorption.

In summary, according to the content disclosed above, this creation can indeed achieve the expected purpose, providing a film structure that can peel the film smoothly, effectively and comprehensively, and can save energy consumption, which is extremely industrially useful. For the value of this, Yan filed an application for a patent for invention in accordance with the law.

2‧‧‧The first inner suction tube

21‧‧‧First air inlet

3‧‧‧The first outer roller

31‧‧‧The first row of holes

311‧‧‧First through hole

32‧‧‧First slot

33‧‧‧First guide groove

4‧‧‧The first intermediate sleeve

41‧‧‧The first middle row of holes

411‧‧‧The first middle through hole

5‧‧‧Second inner aspirator

51‧‧‧Second air inlet

6‧‧‧Second outer roller

61‧‧‧The second row of holes

611‧‧‧Second through hole

62‧‧‧Second slot

63‧‧‧Second guide groove

7‧‧‧Second intermediate sleeve

71‧‧‧The second middle row of holes

711‧‧‧Second middle through hole

Claims (10)

An absorption film structure, which includes: A first inner suction tube is fixedly connected to a peeling machine, the lower half of the first inner suction tube is provided with at least one first air inlet hole, and one end of the first inner suction tube Connected to an air suction device for inhaling air to allow airflow to enter the inside of the barrel of the first inner suction tube through the at least one first air inlet hole; and A first outer drum is coaxially sleeved with the first inner suction drum in a rotatable manner relative to the first inner suction drum. The first row of holes, any one of the first rows of holes has a plurality of first through holes arranged at intervals in the axial direction, so that when the first outer drum rotates, the pluralities of the lower half of the barrel of the first outer drum A first row of holes communicates with at least one first air inlet hole of the first inner suction cylinder for upward suction, and the plurality of first rows of holes in the lower half of the barrel of the first outer drum continue When rotating to the upper half of the first inner suction cylinder, interrupted air enters the inside of the barrel of the first inner suction cylinder through the plurality of first rows of holes. The suction film structure described in item 1 of the scope of patent application, wherein the first air inlet is an arc-shaped hole opened around the lower half of the barrel of the first inner suction tube, and the plurality of The first air intake holes are arranged in parallel at an axial interval of the first inner suction tube. The suction film structure described in item 1 of the scope of patent application further includes a first intermediate sleeve which is coaxially connected to the first intermediate sleeve in a manner that can move axially relative to the first outer roller. The outer drum is sleeved with the first inner suction tube; the barrel of the first middle sleeve is provided with a plurality of first middle rows of holes arranged at intervals around the circumference, and any one of the first middle rows of holes includes a plurality of The first middle through holes arranged at intervals in the axial direction and having different axial lengths, and the plurality of first middle through holes The plurality of first middle through holes of the row of holes correspond to the plurality of first through holes of the first outer drum, so that when the first middle sleeve moves axially, the plurality of first middle through holes and The connected state of the plurality of first through holes. The suction film structure described in item 3 of the scope of patent application, wherein the axial middle section of the first middle row of holes has a first middle through hole with the largest length, and the other pluralities on both sides of the largest length first middle through hole The first middle through holes are arranged at intervals to the two ends of the axis of the first middle row of holes in a manner of decreasing length. As described in any one of items 1 to 4 in the scope of the patent application, the outer periphery of the barrel of the first outer drum is further provided with a plurality of first grooves, and the two ends of the first groove are respectively connected to the Two adjacent first through holes of any first row of holes are spaced apart. As described in item 5 of the scope of patent application, the outer periphery of the cylinder body of the first outer drum is further provided with a plurality of first guide grooves, and the first guide grooves are connected to any two phases in an oblique direction. Between the first through holes adjacent to the first row of holes. The film peeling device described in item 1 of the scope of patent application further includes a second inner suction tube and a second outer roller, and the second inner suction tube is fixedly connected to the peeling machine and is parallel Located below the first inner suction cylinder, the second inner suction cylinder is provided with at least one second air inlet on the upper half of the cylinder, and the second inner suction cylinder is connected to the suction device for inhalation The at least one second air inlet is allowed to generate negative pressure; the second outer drum is coaxially connected to the second inner suction tube in a rotatable manner, and the barrel of the second outer drum is provided with a plurality of intervals around the circumference The parallel second row of holes, any of the second row of holes has a plurality of second through holes arranged at intervals in the axial direction, so that when the second outer drum rotates, the second outer drum A plurality of second rows of holes communicate with at least one second air inlet of the second inner suction tube for downward air suction, and in the second outer drum When the second row of holes in the upper half of the cylinder continue to rotate to the lower half of the second inner suction cylinder, the interrupted air enters the cylinder body of the second inner suction cylinder from the plurality of second rows of holes . As described in item 7 of the scope of patent application, the film peeling device further includes a second intermediate sleeve which is coaxially connected to the second intermediate sleeve in a manner that can move axially relative to the second outer roller. The outer drum is sleeved with the second inner suction tube; the barrel of the second middle sleeve is provided with a plurality of second middle rows of holes arranged at intervals around the circumference, and any second middle row of holes includes a plurality of Second middle through holes arranged at intervals in the axial direction and having different axial lengths, and the plurality of second middle through holes of the plurality of second middle rows of holes correspond to the plurality of second through holes of the second outer drum, Therefore, when the second middle sleeve moves axially, the communication state between the plurality of second middle through holes and the plurality of second through holes is adjusted. As described in item 7 or 8 of the scope of patent application, the outer periphery of the barrel of the first outer drum is further provided with a plurality of second grooves, and both ends of the second groove are respectively connected to any one of the second grooves. Two adjacent second through holes in the row of holes are spaced apart. As described in item 9 of the scope of patent application, the outer periphery of the second outer drum is further provided with a plurality of second guide grooves, and the second guide grooves are connected to any two phases in an oblique direction. Between the second through holes adjacent to the second row of holes.

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