TWM642667U - Film stripping device - Google Patents

Abstract

A film peeling and tearing device, which includes a support frame, and the support frame is sequentially provided with a feeding mechanism, a film tearing mechanism and a discharging mechanism along the conveying direction of the printed circuit board, and a printed circuit board passes through the feeding mechanism to carry out Film tearing operation, the printed circuit board after the film tearing operation is completed is transported to the discharge mechanism, a rolling assembly of the film tearing mechanism is used to roll the two board surfaces of the printed circuit board, and a blower is used to roll the two protective films Blow off the surface of the printed circuit board, an upper collecting component is used to transport and collect a protective film on the upper surface of the printed circuit board, and a lower collecting component is used to transport and collect another protective film on the lower surface of the printed circuit board , so as to reduce the length of the film tearing equipment, thereby helping to improve the applicability of the film tearing equipment.

Description

Film peeling device

The invention relates to the technical field of printed circuit board film tearing equipment, especially a film peeling and tearing device with a simplified transmission structure.

The printed circuit board makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical layout. In the manufacturing process of the printed circuit board, in order to protect the surface of the printed circuit board, a protective film will be adhered to the two surfaces of the printed circuit board. When it is necessary to perform processing operations on the surface of the printed circuit board, usually The protective film on the two surfaces of the printed circuit board will be torn off with a film tearing device.

In the existing film tearing equipment, its general structure mainly includes a feed section, a tear film section and a discharge section extending along the conveying direction of the printed circuit board. The printed circuit board is transported from the feed section into the tear film section, and the tear film The section is equipped with a tearing film element and a conveying element. The tearing film element tears off the two layers of protective film of the printed circuit board, and the conveying element transports and collects the torn protective film, and then the printed circuit board that has been peeled off is transported to The discharge section is used for the next process operation. However, since the feeding section, film tearing section and discharging section extend along the conveying direction of the printed circuit board, the length of the film tearing equipment is often longer than 1.6m. Not applicable in venue.

In view of this, in order to provide a structure different from the conventional technology and improve the above-mentioned shortcomings, the author has accumulated many years of experience and continuous research and development, so this creation is produced.

One purpose of this creation is to provide a kind of peeling film tearing off device, so that can solve conventional tearing film device The length of the equipment is too long to be installed in a small place, but it can be reconfigured and assembled through the overall structure, so as to simplify the transmission structure and reduce the length of the film tearing equipment, which is conducive to improving the applicability of the film tearing equipment.

In order to achieve the purpose of the above-mentioned creation, the peeling and tearing device of this creation mainly includes a support frame, and the support frame is sequentially provided with a feeding mechanism, a film tearing mechanism and a discharging mechanism along the conveying direction of the printed circuit board. The printed circuit board passes through the feeding mechanism to enter the film tearing mechanism for film tearing operation, and the printed circuit board after the film tearing operation is completed is transported to the discharge mechanism. The film tearing mechanism includes a rolling assembly, a blower, an upper collecting assembly and a lower collecting assembly. The rolling assembly is located behind the feeding mechanism and is used to roll the two surfaces of the printed circuit board so that the two protective films Loosely attached to the upper and lower surfaces of the printed circuit board respectively; the blower is located behind the rolling assembly and is used to blow the two protective films off the upper and lower surfaces of the printed circuit board; the upper collecting assembly is located in the discharge mechanism The upper part is used to convey and collect a protective film on the upper surface of the printed circuit board; the lower collecting component is located below the discharge mechanism and is used to convey and collect another protective film on the lower surface of the printed circuit board.

By adopting the above technical solution, when the printed circuit board needs to be peeled off, the staff puts the printed circuit board into the feeding mechanism for conveyance, and when the printed circuit board moves to the position of the film tearing mechanism, the rolling assembly rolls Press the two board surfaces of the printed circuit board, so that the two protective films are folded to loosely adhere to the board surface of the printed circuit board, and then the blower blows the protective film from the board surface of the printed circuit board, and the printed circuit board A protective film blown up from the board surface is conveyed and collected through the upper collection assembly, another protective film blown from the lower board surface of the printed circuit board is conveyed and collected through the lower collection assembly, and the printed circuit board after the final film tearing operation is conveyed to the discharge mechanism to complete the entire tearing operation of the printed circuit board. In the process of tearing the film of the printed circuit board, the upper collection assembly is located above the discharge mechanism, and the lower collection assembly is located below the discharge mechanism, which reduces the occupation of the upper collection assembly and the lower collection assembly. The space can reduce the length of the film peeling and tearing device, thereby helping to improve the applicability of the film peeling and tearing device.

During implementation, the upper collection assembly includes two upper conveyor belts arranged in parallel and an upper collection box, the upper collection box is located directly above the discharge mechanism, the two upper conveyor belts are arranged obliquely upward, and the upper conveyor belts One end is close to the printed circuit board after the film tearing operation, and the other end is close to the mouth of the upper collection box. There is a gap between the two upper conveyor belts for the passage of the protective film. By adopting the above technical scheme, when the protective film on the upper surface of the printed circuit board is blown up, the protective film enters the gap between the two upper conveyor belts for transport, and finally transports to the upper collection box for collection, so as to realize the printed circuit board For the transportation and collection of the protective film on the upper plate surface, the upper conveyor belt is arranged obliquely upward, which is conducive to reducing the occupied space of the peeling and tearing device with a simplified transmission structure.

During implementation, the angle range between the two upper conveyor belts and the horizontal plane is set to 65°-75°. By adopting the above technical solution, the angle between the upper conveyor belt and the horizontal plane is set within this range. Under the condition that the protective film can be transported, the upper conveyor belt takes up less space, which can further reduce the transmission structure with a simplified structure. The length of the peel-off device.

During implementation, the rolling assembly includes an upper rolling wheel, a lower rolling wheel and two sliding seats, the upper rolling wheel and the lower rolling wheel are respectively connected to the two sliding seats, and the two sliding seats are synchronously aligned along the vertical It reciprocates in the direction of the conveying direction of the printed circuit board, and there is a gap between the upper rolling wheel and the lower rolling wheel for the printed circuit board to pass through. By adopting the above technical scheme, when the printed circuit board is transported to the gap between the upper rolling wheel and the lower rolling wheel, the two sliding seats respectively drive the upper rolling wheel and the lower rolling wheel to transport the printed circuit board along the direction perpendicular to the printed circuit board. The upper and lower rolling wheels roll the upper and lower surfaces of the printed circuit board respectively, and the upper rolling wheel rubs against the protective film on the upper surface of the printed circuit board during the rolling process. The lower rolling wheel rubs against the protective film on the lower surface of the printed circuit board during the rolling process, causing the protective film to wrinkle, so that the subsequent blower blows the protective film away from the printed circuit board surface.

During implementation, the blowing part is set as a blowing pipe, and the blowing pipe is positioned at the rear of the sliding seat. The blowing pipe is provided with blowing outlets at intervals along its length direction, and the blowing outlets face the gap between the upper rolling wheel and the lower rolling wheel. By adopting the above technical scheme, after the printed circuit board is rolled by the rolling assembly, the protective film forms wrinkles on the surface of the printed circuit board, and the air outlet of the blower is aligned with the printed circuit board for blowing, thereby realizing the protection film from the printed circuit board. The surface of the circuit board is blown away.

During implementation, the lower collection assembly includes a lower conveyor belt and a lower collection box. The lower collection box is located directly below the lower conveyor belt. The lower conveyor belt is vertically arranged. The lower end of the conveyor belt is close to the mouth of the lower collection box. By adopting the above technical solution, when the protective film on the lower surface of the printed circuit board is blown up, the protective film abuts against the vertically arranged lower conveyor belt, and then the lower conveyor belt rotates to convey the blown-off protective film , and finally transported to the lower collection box for collection, so as to realize the transportation and collection of the protective film on the lower surface of the printed circuit board.

During implementation, the discharge mechanism includes a discharge frame and a plurality of discharge rollers, the discharge frame is located behind the blowing pipe, and the plurality of discharge rollers are connected to the discharge frame at intervals along the conveying direction of the printed circuit board. By adopting the above technical scheme, the printed circuit board is transported to the discharge mechanism after the film tearing operation is completed, and the discharge frame supports the discharge roller, and a plurality of discharge rollers are rotated and connected to the discharge frame along the conveying direction of the printed circuit board at intervals , to support the printed circuit board, so as to facilitate the picking operation of the staff when operating the printed circuit board in the next process.

During implementation, the discharge mechanism further includes a jacking assembly for lifting the printed circuit board that has not been torn off the protective film. The jacking assembly includes a jacking frame, a jacking roller set, a jacking cylinder, and at least one sensor. The lifting roller group is rotatably connected to the jacking frame, and the jacking cylinder is used to drive the jacking frame to move vertically up and down. The jacking roller group is installed up and down in the gap between a plurality of discharge rollers. At least one sensor is respectively installed in the upper collecting box and The box mouth of the lower collecting box is used for sensing the protective film, and at least one sensor is electrically connected with the jacking cylinder. by adopting In the above technical solution, the lifting component can lift up the printed circuit board that has not been torn from the protective film, and when the printed circuit board that has not been torn from the protective film is transported to the discharge roller, the two sensors can sense that the protective film has not been removed from the discharge roller. When the upper conveyor belt is transported to the upper collection box or not from the lower conveyor belt to the lower collection box, the two sensors send electrical signals to the jacking cylinder respectively, and the jacking cylinder drives the jacking frame to move vertically upwards, and the jacking frame drives the jacking The lifting roller group lifts the printed circuit board that has not been torn off the protective film, so that it can be separated from the printed circuit board that has been torn off the protective film.

During implementation, there are multiple sets of jacking roller sets, and the multiple sets of jacking roller sets are arranged at intervals along the vertical direction of the jacking frame. By adopting the above technical solution, the jacking roller group is provided with multiple groups, which can perform multiple jacking operations.

During implementation, the upper collection assembly further includes a plurality of guide rods, the plurality of guide rods are arranged on the two upper conveyor belts close to the opening of the upper collection box, and the plurality of guide rods form a guide for guiding the protective film into the upper collection box. aisle. By adopting the above technical scheme, a plurality of guide rods are arranged on the upper conveyor belt close to the mouth of the upper collection box to form a guide channel, which guides the protective film to the upper collection box and is beneficial to prevent the protective film from sticking to the upper conveyor belt The upper conveying belt is close to the position of the printed circuit board, which is beneficial to improve the stability of the protective film conveyed to the upper collecting box for collection.

In order to facilitate a deeper understanding of this creation, it is described in detail below:

1: support frame

2: Feeding mechanism

3: Tear film mechanism

31:Rolling components

311: Upper rolling wheel

312: Lower rolling wheel

313: sliding seat

32: Blowing parts

33: Upper collection components

331: Upper conveyor belt

332: upper collection box

333: guide rod

34: Lower collection components

341: Lower conveyor belt

342: Lower collection box

4: Discharging mechanism

41: Discharge rack

42: Discharge roller

43: Jacking components

431: jacking frame

432: Jacking roller set

433: jacking cylinder

434: sensor

5: Hair outlet

〔Fig. 1〕 is the overall structure schematic diagram of the preferred embodiment of this creative peeling film tearing off device.

〔Fig. 2〕 is the sectional schematic view of the preferred embodiment of the peeling film tearing off device of this invention.

[Fig. 3] is a partially enlarged view of part A of Fig. 2.

[Fig. 4] is the structural representation of the lifting assembly of the preferred embodiment of the film peeling and tearing device of the invention.

Please refer to shown in Fig. 1, it is the preferred embodiment of this creative film peeling off device, mainly comprises a support frame 1, and support frame 1 is provided with a feeding mechanism 2 successively along the linear conveying direction of a printed circuit board , a film tearing mechanism 3 and a discharging mechanism 4. The printed circuit board passes through the feeding mechanism 2 to enter the film tearing mechanism 3 for film tearing operation, and the printed circuit board after the film tearing operation is completed is then transported to the discharge mechanism 4 .

As shown in Figure 1 and Figure 2, the feed mechanism 2 includes a plurality of feed rollers, the plurality of feed rollers are horizontally connected to the support frame 1, and the plurality of feed rollers are located on the same horizontal plane, when the plurality of feed rollers When rotating in the same direction, the printed circuit board is placed on the feed roller to be transported until it is transported to the film tearing position of the film tearing mechanism 3 .

The film tearing mechanism 3 includes a rolling assembly 31, a blower 32, an upper collecting assembly 33 and a lower collecting assembly 34, wherein the rolling assembly 31 is positioned at the rear of the feeding mechanism 2, and is used for rolling the upper surface of the printed circuit board. , the next two boards, so that the two protective films that are closely attached to the printed circuit board can be loosely attached to the boards of the printed circuit board respectively; the blower 32 is located at the rear of the rolling assembly 31 for The two protective films that are loosely attached to the printed circuit board surface are blown away from the upper and lower surface of the printed circuit board; the upper collecting assembly 33 is located above the discharge mechanism 4, and is used to protect the upper surface of the printed circuit board. The film is conveyed and collected, and the lower collection assembly 34 is located below the discharge mechanism 4, and is used to convey and collect another protective film on the lower surface of the printed circuit board, so as to realize the separation between the printed circuit board and the lower two boards. The tearing off of the protective film.

The rolling assembly 31 includes an upper rolling wheel 311, a lower rolling wheel 312 and two sliding seats 313. The upper rolling wheel 311 and the lower rolling wheel 312 are respectively connected to the two sliding seats 313 in rotation. The sliding seat 313 synchronously reciprocates along a direction perpendicular to the conveying direction of the printed circuit board. In this example, two The synchronous movement of each sliding seat 313 is driven by a rodless cylinder. It should be noted that the upper rolling wheel 311 and the lower rolling wheel 312 are provided with patterns for increasing friction, and there is a printed circuit board between the upper rolling wheel 311 and the lower rolling wheel 312. Gap through. When the printed circuit board passes through the gap between the upper rolling wheel 311 and the lower rolling wheel 312, the sliding seat 313 drives the upper rolling wheel 311 and the lower rolling wheel 312 to move synchronously, and the upper rolling wheel 311 and the lower rolling wheel The pressure roller 312 rolls the upper and lower surfaces of the printed circuit board respectively, so that the protective films on the printed circuit board and the lower surface are respectively wrinkled, so that the two protective films are in a loose state on the printed circuit board surface.

As shown in Figure 2 and Figure 3, the blowing part 32 is arranged as a blowing pipe, and the blowing part 32 is horizontally fixedly arranged on the support frame 1, and the blowing part 32 is positioned at the rear of the sliding seat 313 and is parallel to the feed roller, and the blowing part 32 A plurality of blowing outlets 5 are evenly spaced along its length direction, and the air blowing direction of the plurality of blowing outlets 5 faces the gap between the upper rolling wheel 311 and the lower rolling wheel 312 . After the printed circuit board is rolled by the upper rolling wheel 311 and the lower rolling wheel 312, the blower 32 blows air to one end of the printed circuit board through a plurality of blowing ports 5, so as to loosely adhere to the printed circuit board and the lower plate. The protective film on both sides of the printed circuit board is blown away from both sides of the printed circuit board.

As shown in FIGS. 1 and 2 , when a protective film on the upper surface of the printed circuit board is blown off, the upper collecting component 33 transports and collects the blown-off protective film. Specifically, the upper collection assembly 33 includes two upper conveyor belts 331 arranged in parallel and an upper collection box 332, wherein the upper collection box 332 is fixedly arranged on the support frame 1, and the upper collection box 332 is located at the bottom of the discharge mechanism 4. Directly above; the two upper conveyor belts 331 are arranged obliquely upwards, and the angle range between the two upper conveyor belts 331 and the horizontal plane is set to 65°-75°. In this embodiment, the angle between the two upper conveyor belts 331 and the horizontal plane is set 70°, in order to allow the upper conveyor belt 331 to occupy less space while ensuring that the protective film can be transported, thereby further reducing the length of the peeling film tearing device. In this embodiment, the length of the peeling film tearing device can be shortened to 1.2m, to It is suitable for some production sites with limited space. It should be noted that, the lower ends of the two upper conveyor belts 331 are close to the printed circuit boards where the film tearing operation has been completed, the upper ends of the two upper conveyor belts 331 are close to the mouth of the upper collection box 332, and the two upper conveyor belts 331 There is a gap for the passage of the protective film. The blower 32 blows the protective film on the upper surface of the printed circuit board into the gap between the two upper conveyor belts 331, and the opposite conveying surfaces of the two upper conveyor belts 331 hold the protective film and transport it upwards, and the protective film finally falls to the upper surface. In the collecting box 332, in order to realize conveying and collecting the protective film on the upper surface of the printed circuit board.

As shown in Figure 2, the upper collection assembly 33 further includes a plurality of guide rods 333, and the plurality of guide rods 333 are arranged on two upper conveyor belts 331 close to the upper end positions of the upper collection box 332 box mouths, and the plurality of guide rods 333 are used for forming It is used to guide the protective film into the guide channel of the upper collection box 332. When the protective film is transported to the upper end of the upper conveyor belt 331 , the guide channel formed by a plurality of guide rods 333 guides the protective film so that the protective film falls into the upper collecting box 332 stably.

As shown in FIGS. 1 and 2 , after the protective film on the lower surface of the printed circuit board is blown off, the lower collecting component 34 transports and collects the blown-off protective film. Specifically, the lower collecting assembly 34 includes a lower conveying belt 341 and a lower collecting box 342, the lower collecting box 342 is fixedly arranged on the support frame 1, and the lower collecting box 342 is located directly below the lower conveying belt 341, and the lower conveying belt 341 is vertical Set, the upper end of lower conveyer belt 341 is close to the printed circuit board that tearing film operation is finished, and the lower end of lower conveyer belt 341 is close to the case mouth of lower collection box 342. The blower 32 blows the protective film on the lower surface of the printed circuit board to a position where it abuts against the conveying surface of the lower conveyer belt 341, and then the lower conveyer belt 341 conveys downwards to convey the protective film to the lower collecting box 342 to realize Transport and collect the protective film on the lower surface of the printed circuit board.

As shown in Figures 1 and 4, the discharge mechanism 4 includes a discharge frame 41 and a plurality of discharge rollers 42, the discharge frame 41 is located at the rear of the blower 32, and the plurality of discharge rollers 42 are arranged along the printed circuit board. The conveying direction is evenly spaced and rotated on the discharge frame 41, and a plurality of discharge rollers 42 are located on the same horizontal plane. To support the printed circuit board after the film tearing operation is completed. And in order to distinguish the printed circuit board that has not been torn off the protective film from the printed circuit board that has been torn off the protective film, the discharge mechanism 4 further includes a jacking assembly for jacking up the printed circuit board that has not been torn off the protective film 43. Specifically, the jacking assembly 43 includes a jacking frame 431 , a jacking roller set 432 , a jacking cylinder 433 and at least one sensor 434 . Wherein the jacking frame 431 is positioned at the rear of the blowing part 32; the jacking roller group 432 horizontally rotates and connects the jacking frame 431, and the jacking roller group 432 includes a plurality of jacking rollers, and a plurality of jacking rollers are positioned on the same horizontal plane, so as to To support the printed circuit board that is torn off the protective film, and the jacking roller and the discharge roller 42 are arranged at a cross interval; the jacking cylinder 433 is used to drive the jacking frame 431 to move vertically up and down, so that the jacking frame 431 can drive the jacking The lifting roller set 432 is installed up and down in the gap between the plurality of discharge rollers 42 . At the same time, two inductors 434 are respectively arranged at the mouths of the upper collection box 332 and the lower collection box 342 for sensing the protective film, and the two inductors 434 are electrically connected with the jacking cylinder 433 . When the sensor 434 of the upper collection box 332 case mouth did not sense that the protective film fell into the upper collection box 332, or when the sensor 434 of the lower collection box 342 case mouth did not sense that the protective film fell into the lower collection box 342, The sensor 434 will send an electrical signal to the jacking cylinder 433, allowing the jacking cylinder 433 to drive the jacking frame 431 to move vertically upwards, and then the jacking roller group 432 will lift the printed circuit board that has not been torn off the protective film from the discharge roller 42, so as to separate the printed circuit boards that have not been torn from the protective film and the printed circuit boards that have been torn from the protective film.

As shown in Figure 4, the jacking roller group 432 is provided with multiple groups, and in this embodiment, the quantity of the jacking roller group 432 is set to four groups, and the four groups of jacking roller groups 432 are arranged along the vertical direction of the jacking frame 431. The directions are spaced so that the jacking roller set 432 can perform four jacking operations.

In this way, when the printed circuit board needs to be peeled off, the staff puts the printed circuit board on the feed roller for transportation, and when the printed circuit board moves to the space between the upper rolling wheel 311 and the lower rolling wheel 312 During the gap, the upper rolling wheel 311 and the lower rolling wheel 312 move along the width direction of the printed circuit board. Move, so that the two protective films on the printed circuit board and the lower two board surfaces are wrinkled respectively, so that the two protective films are loosely attached to the board surface of the printed circuit board respectively, and then the blower blows the two protective films through the air outlet 5 The protective film is blown from the board surface of the printed circuit board respectively, wherein a protective film blown from the printed circuit board board is conveyed and collected in the upper collection box 332 by the clamping of two upper conveyer belts 331, and is collected by the printed circuit board. The other protective film blown up on the lower surface of the board passes through the lower conveyor belt 341 to be transported and collected in the lower collection box 342, and the printed circuit board after the film tearing operation is finally conveyed to the discharge roller 42 to complete the entire process of the printed circuit board. Tear film operation. Wherein, during the film tearing operation process of the printed circuit board, the upper conveyor belt 331 is inclined, and the upper collecting box 332 is positioned directly above the discharge roller 42, and the lower collecting box 342 is positioned at the bottom of the discharging mechanism 4, thereby reducing the The space occupied by the upper collection assembly 33 and the lower collection assembly 34 in the peeling film tearing device reduces the length of the peeling film tearing device, thereby helping to improve the applicability of the peeling film tearing device.

In summary, this creation includes at least one of the following beneficial technical effects:

1. By setting the upper collection assembly above the discharge mechanism and the lower collection assembly below the discharge mechanism, the occupied space of the upper collection assembly and the lower collection assembly can be effectively reduced, and the length of the tearing film equipment can be reduced, thereby It is beneficial to improve the applicability of tearing film equipment.

2. By setting the angle range between the two upper conveyor belts and the printed circuit board to 65°-75°, while ensuring that the protective film can be transported, the upper conveyor belt can take up less space and further reduce the The length of the peel-off device.

3. By setting a plurality of guide rods, the plurality of guide rods form a guide channel for guiding the protective film into the upper collection box, which is conducive to improving the stability of the protective film being transported to the upper collection box for collection.

Although this creation discloses preferred specific embodiments to achieve the above purpose, it is not intended to limit the structural features of this creation. Anyone with ordinary knowledge in this technical field should know that in this creation Under the spirit of technology, any easily conceivable changes or modifications are possible, and all of them are covered by the patent scope of this creation.

1: support frame

2: Feeding mechanism

3: Tear film mechanism

4: Discharging mechanism

41: Discharge rack

42: Discharge roller

43: Jacking components

434: sensor

Claims (10)

A film peeling and tearing device, which includes a support frame, which is sequentially provided with a feeding mechanism, a film tearing mechanism and a discharge mechanism along the conveying direction of a printed circuit board, and the printed circuit board passes through the feeding mechanism to enter the film tearing mechanism for film tearing operation, and the printed circuit board after the film tearing operation is completed is transported to the discharge mechanism; the film tearing mechanism includes a rolling assembly, a blower, an upper collection assembly and a collection Assemblies, the rolling assembly is located at the rear of the feeding mechanism, for rolling the two board surfaces of the printed circuit board, so that the two protective films are loosely attached to the upper and lower board surfaces of the printed circuit board; the blower Located behind the rolling assembly, it is used to blow the two protective films away from the upper and lower surfaces of the printed circuit board; A protective film is conveyed and collected; the lower collecting assembly is located below the discharge mechanism for conveying and collecting another protective film on the lower surface of the printed circuit board. The peeling and tearing device of claim 1, wherein the upper collecting assembly includes two upper conveying belts arranged in parallel and an upper collecting box, the upper collecting box is located directly above the discharge mechanism, and the two upper conveying The belts are arranged obliquely upwards, and one end of the two upper conveyor belts is close to the printed circuit board after the film tearing operation is completed, and the other end of the two upper conveyor belts is close to the mouth of the upper collection box. There is a gap between the belts for the passage of the one protective film. The peeling and tearing device according to claim 2, wherein the angle range between the two upper conveyor belts and the horizontal plane is set at 65°-75°. Such as the film peeling device of claim 2, wherein the rolling assembly includes an upper rolling wheel, a lower rolling wheel and two sliding seats, the upper rolling wheel and the lower rolling wheel are respectively connected to the two a sliding seat, the two sliding seats synchronously reciprocate along a direction perpendicular to the conveying direction of the printed circuit board, and there is a gap between the upper rolling wheel and the lower rolling wheel for the printed circuit board to pass through. As the film peeling device of claim 4, wherein the blowing part is a blowing pipe, the blowing pipe is located at the rear of the sliding seat, and the blowing pipe is provided with a plurality of blowing ports at intervals along its length direction, and the plural blowing ports face The gap between the upper rolling wheel and the lower rolling wheel. As the film peeling device of claim 5, wherein the lower collecting assembly includes a lower conveyor belt and a lower collecting box, the lower collecting box is located directly below the lower conveyor belt, the lower conveyor belt is vertically arranged, and the lower conveyor belt The upper end of the upper end is close to the printed circuit board after the film tearing operation is completed, and the lower end of the lower conveyor belt is close to the mouth of the lower collection box. The peeling and tearing device according to claim 6, wherein the discharge mechanism includes a discharge frame and a plurality of discharge rollers, the discharge frame is located behind the blower, and the plurality of discharge rollers are along the printed circuit The conveying direction of the plates is rotated at intervals to connect the discharge frame. The peeling and tearing device as claimed in item 7, wherein the discharge mechanism further includes a jacking assembly for jacking up the printed circuit board that has not been torn off from the two protective films, and the jacking assembly includes a jacking frame , a jacking roller set, a jacking cylinder and at least one sensor, the jacking roller set is rotatably connected to the jacking frame, the jacking cylinder is used to drive the jacking frame to move vertically up and down, the jacking roller set Up and down through the gaps between the plurality of discharge rollers, the at least one sensor is respectively arranged at the mouth of the upper collecting box and the lower collecting box for sensing the two protective films, and the sensor is electrically connected to the jacking cylinder. The film peeling device according to claim 8, wherein the jacking roller set has multiple sets, and the multiple sets of jacking roller sets are arranged at intervals along the vertical direction of the jacking frame. The peeling and tearing device of claim 2, wherein the upper collecting assembly further includes a plurality of guide rods, the plurality of guide rods are arranged at the position where the two upper conveyor belts are close to the mouth of the upper collecting box, and the plurality of guide rods The guide rod forms a guide channel for guiding the protective film into the upper collection box.

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