Film rubbing device

Abstract

The utility model discloses a film rubbing device, which includes a conveying member, a limiting component and a film rubbing mechanism. The conveying member carries a PCB, the limiting component abuts the PCB, and the film rubbing mechanism includes a first film rubbing roller, a second film rubbing roller and a driving component. The driving component connects the first film rubbing roller and the second film rubbing roller, and the driving component drives the first film rubbing roller and the second film rubbing roller to abut the PCB, so that the protective film on the PCB is partially separated from the PCB. The limiting component of the utility model abuts the PCB to ensure that the PCB is accurately positioned within the working range of the film rubbing mechanism. The driving component drives the first film rubbing roller and the second film rubbing roller to abut the PCB. The conveying member conveys the PCB, and friction is generated between the protective film and the first film rubbing roller and between the protective film and the second film rubbing roller. Under the action of the friction, the protective film wrinkles and the protective film is partially separated from the PCB. At this time, the adhesive member adheres to the wrinkles of the protective film, and the protective film can be easily torn off, which solves the problem that the adhesive member is difficult to tear off the protective film due to the close fit between the protective film and the PCB surface.

Description

Technical Field

[0001] The utility model relates to the technical field of film rubbing, in particular to a film rubbing device. Background Art

[0002] Protective film plays an important role in the manufacturing process of PCB (printed circuit board). It is usually pasted on the PCB to prevent the circuit board from being corroded and damaged by chemical substances and from being attached by pollutants such as dust and impurities.

[0003] However, the protective film is not the final component of the PCB. In some subsequent manufacturing links, such as welding and assembly, the presence of the protective film may hinder the progress of these operations. Therefore, after completing its protective task, the protective film needs to be torn off from the PCB. The prior art usually provides an adhesive member, and uses the adhesive member to adhere the protective film to achieve film tearing. However, in a flat state, the protective film is closely attached to the PCB surface, so the film tearing effect is poor. Utility Model Content

[0004] The utility model aims to provide a film rubbing device to solve the technical problem that the protective film in the prior art is closely attached to the surface of the PCB and the adhesive part is difficult to tear off the protective film.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A film rubbing device comprises a conveying member, a limiting assembly and a film rubbing mechanism, wherein the conveying member carries a PCB, the limiting assembly abuts against the PCB, the film rubbing mechanism comprises a first film rubbing roller, a second film rubbing roller and a driving assembly, the driving assembly connects the first film rubbing roller and the second film rubbing roller, and the driving assembly drives the first film rubbing roller and the second film rubbing roller to abut against the PCB so that the protective film on the PCB is partially detached from the PCB.

[0007] Preferably, the driving assembly comprises a first driver and a second driver, the first driver is connected to the first film-taking roller, and the second driver is connected to the second film-taking roller.

[0008] Preferably, the film rubbing device further comprises a frame, and the conveying member comprises a plurality of conveying rollers, and the plurality of conveying rollers are arranged at intervals and connected to the frame.

[0009] Preferably, the limit assembly includes a bidirectional threaded rod, a first limit block and a second limit block, the bidirectional threaded rod is rotatably connected to the frame and is provided with a first thread segment and a second thread segment, the first limit block is connected to the first thread segment, the second limit block is connected to the second thread segment, the first limit block is arranged in the gap between adjacent conveying rollers, the second limit block and the first limit block are arranged relative to each other, and the PCB is arranged between the first limit block and the second limit block.

[0010] Preferably, the limiting assembly also includes a fixed plate, a pressure plate and a third driver, the third driver is connected to the pressure plate, the fixed plate is arranged at the discharge end of the conveying member and is connected to the frame, and when the PCB is conveyed to the fixed plate, the third driver drives the pressure plate to abut against the PCB.

[0011] Preferably, the film rubbing device also includes a plate separating roller, the pressure plate is arranged between the plate separating roller and the film rubbing mechanism, the plate separating roller is arranged above the conveying roller, and the distance between the conveying roller and the plate separating roller is greater than the thickness of a single PCB and less than the thickness of two PCBs.

[0012] Preferably, the film rubbing device further comprises a connecting block and a fourth driver, and the connecting block connects the fourth driver and the plate separating roller.

[0013] Preferably, the film rubbing device further comprises a fifth driver, the fifth driver is connected to a transmission shaft, the transmission shaft is connected to a first magnetic wheel, the conveying roller is connected to a second magnetic wheel, and the first magnetic wheel and the second magnetic wheel have the same magnetic properties.

[0014] Preferably, the film rubbing device further comprises a sensor, which is arranged at the discharge end of the conveying member and is electrically connected to the first driver, the second driver and the third driver.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model designs a film rubbing device, which comprises a conveying member, a limiting component and a film rubbing mechanism.

[0017] The limiting component abuts against the PCB to prevent the PCB from shifting, ensuring that the PCB is accurately positioned within the working range of the film rubbing mechanism. The film rubbing mechanism includes a first film rubbing roller, a second film rubbing roller and a driving component. The driving component is connected to the first film rubbing roller and the second film rubbing roller. When rubbing the film, the driving component drives the first film rubbing roller and the second film rubbing roller to abut against the PCB, and the conveying member conveys the PCB. Friction will be generated between the protective film and the first film rubbing roller and between the protective film and the second film rubbing roller. Under the action of the friction, the protective film wrinkles and partially detaches from the PCB. At this time, the adhesive member adheres to the wrinkles of the protective film, so the protective film can be easily torn off, which solves the problem that the protective film in the prior art is difficult to tear off the protective film due to the tight fit between the protective film and the PCB surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the film rubbing device of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the fixed plate, the pressing plate and the third driver of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the conveying member, the first limiting block and the second limiting block of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the plate-splitting roller, the fourth driver and the connecting block of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the film rubbing mechanism of the utility model.

[0023] Illustration Description:

[0024] 10. conveying roller; 11. second magnetic wheel; 12. first magnetic wheel; 13. transmission shaft; 14. fifth driver;

[0025] 20. frame; 21. bidirectional threaded rod; 22. first limit block; 23. second limit block;

[0026] 30. Fixed plate; 31. Pressing plate; 32. Third driver;

[0027] 40. Plate separation roller; 41. Connecting block; 42. Fourth driver;

[0028] 50. First driver; 51. First film-rubbing roller; 52. Second driver; 53. Second film-rubbing roller. DETAILED DESCRIPTION

[0029] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0031] See also Figure 1-Figure 5 The utility model designs a film rubbing device, which includes a conveying member, a limiting component and a film rubbing mechanism. The conveying member carries a PCB, the limiting component abuts the PCB, the film rubbing mechanism includes a first film rubbing roller 51, a second film rubbing roller 53 and a driving component. The driving component connects the first film rubbing roller 51 and the second film rubbing roller 53. The driving component drives the first film rubbing roller 51 and the second film rubbing roller 53 to abut the PCB, so that the protective film on the PCB is partially separated from the PCB.

[0032] It should be noted that the limiting component abuts against the PCB to prevent the PCB from shifting, ensuring that the PCB is accurately positioned within the working range of the film rubbing mechanism. The film rubbing mechanism includes a first film rubbing roller 51, a second film rubbing roller 53 and a driving component. The driving component connects the first film rubbing roller 51 and the second film rubbing roller 53. When rubbing the film, the driving component drives the first film rubbing roller 51 and the second film rubbing roller 53 to abut against the PCB, and the conveying member conveys the PCB. Friction will be generated between the protective film and the first film rubbing roller 51 and between the protective film and the second film rubbing roller 53. Under the action of the friction, the protective film wrinkles and partially detaches from the PCB. At this time, the adhesive member adheres to the wrinkles of the protective film, and the protective film can be easily torn off, which solves the problem of the protective film in the prior art being closely attached to the PCB surface and making it difficult to tear off the protective film with the adhesive member.

[0033] Specifically, the driving assembly includes a first driver 50 and a second driver 52, wherein the first driver 50 is connected to the first film rolling roller 51, and the second driver 52 is connected to the second film rolling roller 53. The first driver 50 and the second driver 52 of the utility model can work independently, and people can control the first film rolling roller 51 and the second film rolling roller 53 respectively, which better meets people's needs. The first driver 50 and the second driver 52 are both motors. In the initial state, the gap between the first film rolling roller 51 and the second film rolling roller 53 is greater than the thickness of the PCB. After the PCB is transported into the film rolling mechanism, the first driver 50 and the second driver 52 are synchronously started to make the first film rolling roller 51 and the second film rolling roller 53 approach each other until the first film rolling roller 51 and the second film rolling roller 53 are both against the PCB.

[0034] Specifically, the film rubbing device further includes a frame 20 , and the conveying member includes a plurality of conveying rollers 10 , and the plurality of conveying rollers 10 are arranged at intervals and connected to the frame 20 .

[0035] Specifically, the limit assembly includes a bidirectional threaded rod 21, a first limit block 22 and a second limit block 23. The bidirectional threaded rod 21 is rotatably connected to the frame 20 and is provided with a first thread segment and a second thread segment. The first limit block 22 is connected to the first thread segment, and the second limit block 23 is connected to the second thread segment. The first limit block 22 is arranged in the gap between adjacent conveying rollers 10, the second limit block 23 and the first limit block 22 are arranged opposite to each other, and the PCB is arranged between the first limit block 22 and the second limit block 23.

[0036] After the PCB of the utility model is placed on the conveying roller 10, the bidirectional threaded rod 21 is rotated forwardly, and after rotating until the first limit block 22 and the second limit block 23 contact the PCB, the fifth driver 14 is started. The fifth driver 14 includes a motor and a belt. The belt is wound around the motor and the transmission shaft 13. The motor rotates, and the belt drives the transmission shaft 13 and the first magnetic wheel 12 to rotate. The first magnetic wheel 12 and the second magnetic wheel 11 have the same magnetism and will generate a repulsive force. The second magnetic wheel 11 rotates under the action of the repulsive force, thereby driving the conveying roller 10 to rotate. The utility model conveys the PCB while avoiding PCB deviation, ensuring that the PCB is accurately positioned within the working range of the film rubbing mechanism.

[0037] Specifically, the limiting assembly also includes a fixed plate 30, a pressure plate 31 and a third driver 32. The third driver 32 is connected to the pressure plate 31. The fixed plate 30 is arranged at the discharge end of the conveyor and connected to the frame 20. When the PCB is conveyed to the fixed plate 30, the third driver 32 drives the pressure plate 31 to abut against the PCB.

[0038] Specifically, the film rubbing device also includes a plate separating roller 40, and the pressure plate 31 is arranged between the plate separating roller 40 and the film rubbing mechanism. The plate separating roller 40 is arranged above the conveying roller 10, and the distance between the conveying roller 10 and the plate separating roller 40 is greater than the thickness of a single PCB and less than the thickness of two PCBs.

[0039] The third driver 32 of the utility model is a cylinder. The distance between the conveying roller 10 and the plate separation roller 40 is greater than the thickness of a single PCB and less than the thickness of two PCBs. When multiple PCBs reach the plate separation roller 40 at the same time, the plate separation roller 40 can intercept them, so that only one PCB enters the fixed plate 30 at a time. When the PCB is conveyed to the fixed plate 30, the third driver 32 drives the pressure plate 31 to abut against the PCB, avoiding the problem of the PCB shaking up and down affecting the film rubbing quality.

[0040] Specifically, the film rubbing device further includes a connecting block 41 and a fourth driver 42, wherein the connecting block 41 connects the fourth driver 42 and the plate separation roller 40. The fourth driver 42 of the utility model is a cylinder, which drives the connecting block 41 and then drives the plate separation roller 40. The spacing between the plate separation roller 40 and the conveying roller 10 is adjustable, which can adapt to PCBs of different thicknesses and has higher universality.

[0041] Specifically, the film rubbing device further includes a sensor, which is disposed at the discharge end of the conveying member and is electrically connected to the first driver 50 , the second driver 52 and the third driver 32 .

[0042] The sensor of the utility model is a photoelectric sensor. When the PCB is conveyed to the discharge end of the conveyor, the first driver 50, the second driver 52 and the third driver 32 are started, and the third driver 32 drives the pressure plate 31 to abut the PCB. The first driver 50 and the second driver 52 are close to each other, and the first film rolling roller 51 and the second film rolling roller 53 are both in contact with the PCB. Frictional force will be generated between the protective film and the first film rolling roller 51 and between the protective film and the second film rolling roller 53. Under the action of the frictional force, the protective film is wrinkled. When the PCB is completely conveyed to the discharge end of the conveyor, the first driver 50, the second driver 52 and the third driver 32 are started, and the third driver 32 drives the pressure plate 31 to move in a direction away from the PCB. The first driver 50 and the second driver 52 are away from each other, and people can carry out unloading operations.

[0043] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A film rubbing device, characterized in that: It includes a conveying member, a limiting component and a film rubbing mechanism, the conveying member carries a PCB, the limiting component abuts against the PCB, the film rubbing mechanism includes a first film rubbing roller, a second film rubbing roller and a driving component, the driving component connects the first film rubbing roller and the second film rubbing roller, and the driving component drives the first film rubbing roller and the second film rubbing roller to abut against the PCB so that the protective film on the PCB is partially separated from the PCB.

2. The film rubbing device according to claim 1, characterized in that: The driving assembly includes a first driver and a second driver, wherein the first driver is connected to the first film-taking roller, and the second driver is connected to the second film-taking roller.

3. The film rubbing device according to claim 2, characterized in that: It also includes a frame, and the conveying member includes a plurality of conveying rollers, and the plurality of conveying rollers are arranged at intervals and connected to the frame.

4. The film rubbing device according to claim 3, characterized in that: The limiting assembly includes a bidirectional threaded rod, a first limiting block and a second limiting block. The bidirectional threaded rod is rotatably connected to the frame and is provided with a first thread segment and a second thread segment. The first limiting block is connected to the first thread segment, and the second limiting block is connected to the second thread segment. The first limiting block is arranged in the gap between adjacent conveying rollers, the second limiting block and the first limiting block are arranged opposite to each other, and the PCB is arranged between the first limiting block and the second limiting block.

5. The film rubbing device according to claim 3, characterized in that: The limiting assembly also includes a fixed plate, a pressure plate and a third driver, the third driver is connected to the pressure plate, the fixed plate is arranged at the discharge end of the conveying member and is connected to the frame, and when the PCB is conveyed to the fixed plate, the third driver drives the pressure plate to abut against the PCB.

6. The film rubbing device according to claim 5, characterized in that: It also includes a plate-separating roller, the pressure plate is arranged between the plate-separating roller and the film-rubbing mechanism, the plate-separating roller is arranged above the conveying roller, and the distance between the conveying roller and the plate-separating roller is greater than the thickness of a single PCB and less than the thickness of two PCBs.

7. The film rubbing device according to claim 6, characterized in that: It also includes a connecting block and a fourth driver, wherein the connecting block connects the fourth driver and the plate separating roller.

8. The film rubbing device according to claim 3, characterized in that: It also includes a fifth driver, the fifth driver is connected to a transmission shaft, the transmission shaft is connected to a first magnetic wheel, the conveying roller is connected to a second magnetic wheel, and the first magnetic wheel and the second magnetic wheel have the same magnetic properties.

9. The film rubbing device according to claim 5, characterized in that: It also includes a sensor, which is arranged at the discharge end of the conveying member and is electrically connected to the first driver, the second driver and the third driver.

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