Release film feeding device and FPC automatic film laminating machine

Abstract

The invention relates to the technical field of FPC processing, and provides a release film feeding device which comprises a mounting plate, a rotating plate, a driving part, a plurality of feeding rollers, a guide roller and a limiting assembly. The limiting assembly comprises a connecting rod, a limiting rod and a first spring; an inserting groove and a sliding groove which communicate with each other are formed in one side, close to the rotating plate, of the mounting plate; the connecting rod is inserted into the inserting groove, an inclined first abutting face is arranged at the end, away from the inserting groove, of the connecting rod, and an inclined connecting face is arranged on the side, close to the sliding groove, of the connecting rod. The limiting rod is connected to the sliding groove in a sliding mode, and an inclined second abutting face is arranged at the end, close to the inserting groove, of the limiting rod and abuts against the connecting face. The first spring is arranged between the connecting rod and the bottom wall of the inserting groove so as to drive the connecting rod to be away from the inserting groove. On the basis, the release film can be conveniently and timely replaced. In addition, the invention further provides an FPC automatic film laminating machine.

Description

Technical Field

[0001] The present application relates to the field of FPC processing, and in particular to a release film feeding device and an FPC automatic laminating machine. Background Art

[0002] FPC is the abbreviation of Flexible Printed Circuit, which is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the substrate. During the processing of FPC, an automatic laminating machine is required to press release films on both sides to protect the FPC.

[0003] In the related art, the FPC automatic laminating machine includes a frame, two feeding rollers, two winding rollers and a pressing device, wherein the two feeding rollers are arranged at intervals in the vertical direction and are located at one end of the frame, and the two winding rollers are arranged at intervals in the vertical direction and are located at the other end of the frame, and the pressing device is located between the feeding roller and the winding roller. The release film is installed on the feeding roller and the waste paper end is wound on the winding roller, and the winding roller is driven by a motor to realize the conveyance of the release film, and the FPC is conveyed along the length direction of the frame and is located between the two release films, so that the two conveyed release films are attached to the two sides of the FPC, and the FPC and the release film are pressed for a period of time by the pressing device to realize the automatic lamination of the FPC.

[0004] However, in actual applications, in order to ensure the continuous delivery of the release film and improve the lamination efficiency of the FPC, the release film needs to be replaced in time after use. At the same time, one end of the replaced release film needs to be attached to the previous release film. The operation is more cumbersome and sometimes difficult to complete the replacement in time, affecting normal work, so it needs to be improved. Summary of the invention

[0005] In order to facilitate the timely replacement of the release film, in a first aspect, the present application provides a feeding device for the release film.

[0006] The present application provides a release film feeding device that adopts the following technical solution: A feeding device for a release film, comprising a mounting plate, a rotating plate, a driving member, a plurality of feeding rollers, a guide roller and a limit assembly; the rotating plate is rotatably connected to one side of the mounting plate, the driving member is arranged on the other side of the mounting plate and drives the rotating plate to rotate; the plurality of feeding rollers are rotatably connected to a side of the rotating plate away from the mounting plate and are evenly spaced along the circumference of the rotating plate; the guide roller is rotatably connected to a side of the mounting plate close to the rotating plate; The limiting assembly comprises a connecting rod, a limiting rod and a first spring; a connecting slot and a sliding slot are provided on a side of the mounting plate close to the rotating plate; the connecting rod is inserted into the plugging slot and an end away from the plugging slot is provided with an inclined first abutting surface, and a side of the connecting rod close to the sliding slot is provided with an inclined connecting surface; the limiting rod is slidably connected to the sliding slot and an end close to the plugging slot is provided with an inclined second abutting surface, and the second abutting surface abuts against the connecting surface; the first spring is provided between the connecting rod and the bottom wall of the plugging slot to drive the connecting rod away from the plugging slot; Among them, the driving member drives the rotating plate to rotate so that the feeding roller abuts against the first abutment surface, so that the connecting rod is close to the plug-in slot, and the second abutment surface abuts against different positions of the connecting surface to drive the limiting rod to abut against the guide roller.

[0007] By adopting the above technical scheme, in actual application, multiple release films are respectively installed on multiple feeding rollers, and one of the used release films is wound around the guide roller to improve the stability of the release film transportation; wherein, after the current release film is used up, the driving member drives the rotating plate to rotate to drive the multiple feeding rollers to rotate, so that the feeding roller corresponding to the used release film abuts against the first abutting surface. Since the first abutting surface is inclined, the connecting rod is driven to approach the plug-in groove and compress the first spring. Under the cooperation of the connecting surface and the second abutting surface, the limiting rod is driven to move toward the guide roller so that the limiting rod abuts against the guide roller to achieve tight abutment of the release film passing through the guide roller, so as to facilitate fitting with one end of the new release film. After that, the driving member continues to drive the rotating plate to rotate. At this time, the first spring drives the connecting rod to reset, the limiting rod releases the abutment against the guide roller, and the other feeding roller moves to the corresponding position, thereby realizing the replacement of the release film. The operation is simple and convenient, and it is convenient to complete the replacement of the release film in time.

[0008] Preferably, the feeding roller comprises a rotating roller body and a connecting sleeve body, and the connecting sleeve body is sleeved on the rotating roller body.

[0009] By adopting the above technical solution, by providing a rotating roller body and a connecting sleeve body, the release film is installed on the connecting sleeve body, and then the connecting sleeve body is sleeved on the rotating roller body, so that the release film can be installed on the feeding roller.

[0010] Preferably, the loading roller also includes a fixed plate, an elastic member and a limit plate, the fixed plate is arranged at one end of the rotating roller body close to the rotating plate, the elastic member is arranged between the fixed plate and the connecting sleeve to drive the connecting sleeve away from the rotating roller body, and the limit plate is detachably connected to one end of the rotating roller body away from the rotating plate and abuts against the connecting sleeve.

[0011] By adopting the above technical solution, by setting a fixing plate, an elastic member and a limiting plate, after removing the limiting plate, the connecting sleeve is driven away from the rotating roller body by the elastic member, thereby facilitating the removal of the connecting sleeve and further facilitating the installation of a new release film.

[0012] Preferably, the feeding roller further comprises a fastening handle, wherein the fastening handle is threadedly connected to the rotating roller body and abuts against a side of the limiting plate away from the connecting sleeve body.

[0013] By adopting the above technical solution and providing a fastening handle, a detachable connection between the limit plate and the rotating roller body is achieved, which has a simple structure and is easy to operate.

[0014] Preferably, the limit assembly further includes a pressure sensor, which is disposed on the bottom wall of the plug-in slot and electrically connected to the driving member, and an abutment portion for abutting the pressure sensor is provided at one end of the connecting rod close to the plug-in slot.

[0015] By adopting the above technical solution and setting a pressure sensor, when the feeding roller abuts against the first abutting surface, the connecting rod is close to the plug-in groove, so that the abutting portion abuts against the pressure sensor to control the driving member to stop working. In this way, there is no need to debug or design the position and size of the driving member and each component, so as to facilitate the overall production of the feeding device.

[0016] Preferably, the first spring is sleeved on the abutting portion.

[0017] By adopting the above technical solution, the first spring is sleeved on the abutting portion to limit the first spring, thereby avoiding excessive bending and damage of the first spring as much as possible, thereby increasing the service life of the first spring.

[0018] Preferably, when the connecting sleeve abuts against the first abutting surface, there is a distance between the rotating roller and the first abutting surface.

[0019] By adopting the above technical solution, the connecting sleeve is arranged to abut against the first abutting surface, and there is a distance between the rotating roller and the first abutting surface. After the connecting sleeve is disassembled from the rotating roller body to release the abutment against the first abutting surface, the connecting rod is reset under the action of the first spring, so that the abutment portion releases the abutment against the pressure sensor, allowing the driving part to continue working and automatically moving each feeding roller to the corresponding position, thereby further facilitating the timely replacement of the release film.

[0020] Preferably, the limiting assembly further includes a second spring, and the second spring is arranged between the sliding groove and the limiting rod to drive the limiting rod to approach the connecting rod.

[0021] By adopting the above technical solution and providing a second spring, it is ensured that the limiting rod can stably release the contact with the guide roller, so as to ensure the stability of the release film feeding.

[0022] Preferably, the limiting assembly further includes an anti-sticking layer, and the anti-sticking layer is arranged on a side of the limiting rod close to the guide roller.

[0023] By adopting the above technical solution and providing an anti-sticking layer, the limiting rod can be prevented from being adhered to the release film.

[0024] In a second aspect, the present application provides an FPC automatic laminating machine.

[0025] The present application provides an FPC automatic laminating machine adopts the following technical solution: An FPC automatic laminating machine comprises the feeding device described above.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the current release film is used up, the driving member drives the rotating plate to rotate, so as to drive the multiple feeding rollers to rotate, so that the feeding roller corresponding to the used release film abuts against the first abutting surface. Since the first abutting surface is inclined, the connecting rod is driven to approach the plug-in slot and compress the first spring. Under the cooperation of the connecting surface and the second abutting surface, the limiting rod is driven to move toward the guide roller, so that the limiting rod abuts against the guide roller, so as to achieve the release film passing through the guide roller to be tightly pressed, so as to fit with one end of the new release film. After that, the driving member continues to drive the rotating plate to rotate. At this time, the first spring drives the connecting rod to reset, the limiting rod releases the abutment against the guide roller, and another feeding roller moves to the corresponding position, so as to achieve the replacement of the release film. The operation is simple and convenient, so as to facilitate the timely completion of the replacement of the release film. 2. By setting a pressure sensor, when the feeding roller abuts against the first abutting surface, the connecting rod approaches the plug-in slot, so that the abutting portion abuts against the pressure sensor to control the driving member to stop working. In this way, there is no need to debug or design the position and size of the driving member and various components, so as to facilitate the production of the entire feeding device; 3. By setting the connecting sleeve to abut against the first abutment surface, there is a distance between the rotating roller body and the first abutment surface. After the connecting sleeve is disassembled from the rotating roller body to release the abutment against the first abutment surface, the connecting rod is reset under the action of the first spring, so that the abutment part releases the abutment against the pressure sensor, allowing the driving part to continue working and automatically moving each feeding roller to the corresponding position, thereby further facilitating the timely replacement of the release film. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the feeding device in the embodiment of the present application; Figure 2It is a schematic diagram of the front structure of the feeding device in the embodiment of the present application; Figure 3 It is a partial exploded schematic diagram of a feeding device in an embodiment of the present application; Figure 4 It is a schematic diagram of the overall explosion of the feeding roller in the embodiment of the present application; Figure 5 It is a partial structural schematic diagram of the feeding device in the embodiment of the present application.

[0028] : Illustration numerals: 1. mounting plate; 11. plug-in slot; 12. sliding slot; 2. rotating plate; 3. driving member; 4. feeding roller; 41. rotating roller body; 42. connecting sleeve body; 43. fixing plate; 44. elastic member; 45. limiting plate; 46. fastening handle; 5. guide roller; 6. limiting assembly; 61. connecting rod; 611. first abutting surface; 612. connecting surface; 613. abutting portion; 62. limiting rod; 621. second abutting surface; 63. first spring; 64. pressure sensor; 65. second spring; 66. anti-sticking layer. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The embodiment of the present application discloses a feeding device for a release film.

[0031] Reference Figure 1 The feeding device comprises a mounting plate 1, a rotating plate 2, a driving member 3, a plurality of feeding rollers 4, a guide roller 5 and a limit assembly 6. The mounting plate 1 and the rotating plate 2 are both arranged in a circular plate shape. The diameter of the mounting plate 1 is larger than the diameter of the rotating plate 2. The rotating plate 2 is coaxially rotatably connected to one side of the mounting plate 1. The driving member 3 is a motor. The driving member 3 is fixedly connected to a side of the mounting plate 1 away from the rotating plate 2 and the power output shaft is fixed to the rotating plate 2 to drive the rotating plate 2 to rotate.

[0032] In this embodiment, there are three loading rollers 4, which are rotatably connected to the side of the rotating plate 2 away from the mounting plate 1, and the three loading rollers 4 are evenly spaced along the circumference of the rotating plate 2, that is, the interval between two loading rollers 4 is 120°, and the guide roller 5 is rotatably connected to the side of the mounting plate 1 close to the rotating plate 2 and is arranged parallel to the loading roller 4.

[0033] Reference Figure 2 and Figure 3The limiting assembly 6 includes a connecting rod 61, a limiting rod 62 and a first spring 63. A plug-in slot 11 and a sliding slot 12 are provided on a side of the mounting plate 1 close to the rotating plate 2. The plug-in slot 11 is arranged along the length direction of the guide roller 5. The sliding slot 12 is arranged perpendicular to the plug-in slot 11, and one end of the sliding slot 12 is connected to one side of the plug-in slot 11. The connecting rod 61 is inserted into the plug-in slot 11. One end of the connecting rod 61 away from the plug-in slot 11 protrudes from the plug-in slot 11 and is provided with a first abutting surface 611. The first abutting surface 611 is arranged obliquely and is used to abut the feeding roller 4, so that the connecting rod 61 moves close to the plug-in slot 11.

[0034] The limiting rod 62 is slidably connected in the sliding groove 12 and protrudes from the sliding groove 12. An end of the limiting rod 62 close to the plug-in groove 11 is provided with an inclined second abutting surface 621, and a side of the connecting rod 61 close to the sliding groove 12 is provided with an inclined connecting surface 612. The connecting surface 612 is adapted to the second abutting surface 621, so that the second abutting surface 621 abuts against the connecting surface 612, so that when the connecting rod 61 moves close to the plug-in groove 11, the limiting rod 62 moves close to the guide roller 5. One end of the first spring 63 is fixedly connected to one end of the connecting rod 61 close to the plug-in groove 11, and the other end is fixedly connected to the bottom wall of the plug-in groove 11, so as to drive the connecting rod 61 away from the plug-in groove 11.

[0035] In practical applications, three release films are respectively installed on three feeding rollers 4, and the material is fed through one of the release films, which is wound around the guide roller 5 to improve the stability of the release film conveying.

[0036] Among them, after the current release film is used up, the driving member 3 drives the rotating plate 2 to rotate counterclockwise, and the rotating plate 2 drives the three feeding rollers 4 to rotate, so that the feeding roller 4 corresponding to the used release film abuts against the first abutting surface 611. Since the first abutting surface 611 is inclined, it drives the connecting rod 61 to approach the plug-in slot 11 and compress the first spring 63. Under the cooperation of the connecting surface 612 and the second abutting surface 621, the limiting rod 62 is driven to move toward the guide roller 5, so that the limiting rod 62 abuts against the guide roller 5, so as to achieve the release film passing through the guide roller 5. In this way, the delivery of the release film can be limited so as to fit with one end of the new release film. Afterwards, the driving member 3 continues to drive the rotating plate 2 to rotate. At this time, the first spring 63 drives the connecting rod 61 to reset, so that the limiting rod 62 releases the abutment against the guide roller 5, and another feeding roller 4 moves to the corresponding position, so as to achieve the replacement of the release film.

[0037] Therefore, during this process, the two release film ends can be quickly fitted together, and there is no need to immediately install a new release film on the loading roller 4, so as to save time in replacing the release film. The operation is simple and convenient, so that the release film can be replaced in time to ensure normal operation.

[0038] Reference Figure 4 In some embodiments, the feeding roller 4 includes a rotating roller body 41 and a connecting sleeve 42, the rotating roller body 41 is rotatably connected to the rotating plate 2, the connecting sleeve 42 is sleeved on the rotating roller body 41, and the release film is installed on the connecting sleeve 42. When the release film is installed on the feeding roller 4, the connecting sleeve 42 is first removed from the rotating roller body 41, and then the connecting sleeve 42 with the release film installed is sleeved on the rotating roller body 41, so that the release film can be easily installed on the feeding roller 4.

[0039] In some embodiments, the feeding roller 4 further includes a fixing plate 43, an elastic member 44 and a limiting plate 45. The fixing plate 43 is fixedly connected to one end of the rotating roller body 41 close to the rotating plate 2. The elastic member 44 is a spring. One end of the elastic member 44 elastically abuts against the fixing plate 43, and the other end abuts against the connecting sleeve 42 to drive the connecting sleeve 42 away from the rotating roller body 41. The limiting plate 45 is detachably connected to one end of the rotating roller body 41 away from the rotating plate 2, and the limiting plate 45 abuts against the connecting sleeve 42, so that the connecting sleeve 42 is clamped between the fixing plate 43 and the limiting plate 45, so that the connecting sleeve 42 can rotate synchronously with the rotating roller body 41. By removing the limiting plate 45, the connecting sleeve 42 is driven away from the rotating roller body 41 by the elastic member 44, so that the connecting sleeve 42 is easily removed from the rotating roller body 41, and then it is easy to install a new release film, so as to improve the efficiency of installing the release film.

[0040] In some embodiments, the loading roller 4 also includes a fastening handle 46, which is threadedly connected to the rotating roller body 41 and abuts against the side of the limiting plate 45 away from the connecting sleeve 42. By rotating the fastening handle 46, a detachable connection between the limiting plate 45 and the rotating roller body 41 is achieved. The structure is simple and easy to operate.

[0041] Reference Figure 3 and Figure 5 In some embodiments, the limit assembly 6 further includes a pressure sensor 64, which is fixedly connected to the bottom wall of the plug-in slot 11, and the pressure sensor 64 is electrically connected to the driving member 3. At the same time, a cylindrical abutting portion 613 is formed on one end of the connecting rod 61 close to the plug-in slot 11, and the abutting portion 613 is used to abut the pressure sensor 64. When the feeding roller 4 abuts against the first abutting surface 611, the connecting rod 61 moves close to the plug-in slot 11, so that the abutting portion 613 abuts against the pressure sensor 64, and the pressure sensor 64 transmits a control signal to the driving member 3. After receiving the control signal, the driving member 3 stops working. In this way, there is no need to debug or design the position and size of the driving member 3 and each component, so as to facilitate the production of the entire feeding device.

[0042] In some embodiments, the first spring 63 is sleeved on the abutting portion 613 to limit the first spring 63 and avoid excessive bending and damage of the first spring 63 to increase the service life of the first spring 63.

[0043] In some embodiments, when the connecting sleeve 42 abuts against the first abutting surface 611, there is a gap between the rotating roller body 41 and the first abutting surface 611, that is, the feeding roller 4 abuts against the first abutting surface 611 through the connecting sleeve 42. In this embodiment, the driving member 3 works once to drive the rotating plate 2 to rotate 120°, and stops working when the abutting portion 613 abuts against the pressure sensor 64. After the connecting sleeve 42 is disassembled from the rotating roller body 41, the abutment against the first abutting surface 611 is released, and the connecting rod 61 is reset under the action of the first spring 63, so that the abutting portion 613 releases the abutment against the pressure sensor 64, so that the driving member 3 continues to work (until the sum of the angles of the rotating plate 2 driven by the driving member 3 to rotate twice is 120°), and each feeding roller 4 is automatically moved to the corresponding position, thereby further facilitating the timely completion of the replacement of the release film. It should be noted that when disassembling the connecting sleeve 42, by disassembling the limit plate 45, the connecting sleeve 42 is driven away from the rotating roller body 41 by the elastic member 44. At the same time, the first spring 63 drives the connecting rod 61 to reset and also drives the connecting sleeve 42 away from the rotating roller body 41, which further facilitates the disassembly of the connecting sleeve 42 from the rotating roller body 41.

[0044] In some embodiments, the limiting assembly 6 further includes a second spring 65, one end of which is fixedly connected to the groove wall of the sliding groove 12, and the other end of which is fixedly connected to the limiting rod 62, so as to drive the limiting rod 62 close to the connecting rod 61, so as to ensure that the limiting rod 62 can stably release the contact with the guide roller 5, so as to ensure the stability of the release film feeding. In some embodiments, the limiting assembly 6 further includes an anti-sticking layer 66, which is fixedly connected to a side of the limiting rod 62 close to the guide roller 5 to prevent the limiting rod 62 from adhering to the release film, thereby ensuring normal transportation of the release film.

[0045] The implementation principle of this embodiment is as follows: after the current release film is used up, the driving member 3 drives the rotating plate 2 to rotate counterclockwise, and the rotating plate 2 drives the three feeding rollers 4 to rotate, so that the feeding roller 4 corresponding to the used release film abuts against the first abutting surface 611. Since the first abutting surface 611 is inclined, it drives the connecting rod 61 to approach the plug-in slot 11 and compress the first spring 63. Under the cooperation of the connecting surface 612 and the second abutting surface 621, the limiting rod 62 is driven to move toward the guide roller 5, so that the limiting rod 62 abuts against the guide roller 5, so as to achieve tight contact with the release film passing through the guide roller 5, so as to limit the conveying of the release film so as to fit with one end of the new release film. Afterwards, the driving member 3 continues to drive the rotating plate 2 to rotate, and at this time, the first spring 63 drives the connecting rod 61 to reset, so that the limiting rod 62 releases the abutment against the guide roller 5, and another feeding roller 4 moves to the corresponding position, so as to achieve the replacement of the release film.

[0046] Therefore, during this process, the two release film ends can be quickly fitted together, and there is no need to immediately install a new release film on the loading roller 4, so as to save time in replacing the release film. The operation is simple and convenient, so that the release film can be replaced in time to ensure normal operation.

[0047] The embodiment of the present application also discloses an FPC automatic laminating machine.

[0048] The FPC automatic laminating machine includes the feeding device described in the above embodiment.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A release film feeding device, characterized in that: The invention comprises a mounting plate (1), a rotating plate (2), a driving member (3), a plurality of feeding rollers (4), a guide roller (5) and a limit assembly (6); the rotating plate (2) is rotatably connected to one side of the mounting plate (1), the driving member (3) is arranged on the other side of the mounting plate (1) and drives the rotating plate (2) to rotate; the plurality of feeding rollers (4) are rotatably connected to a side of the rotating plate (2) away from the mounting plate (1) and are evenly spaced along the circumference of the rotating plate (2); the guide roller (5) is rotatably connected to a side of the mounting plate (1) close to the rotating plate (2); The limiting assembly (6) comprises a connecting rod (61), a limiting rod (62) and a first spring (63); a connecting slot (11) and a sliding slot (12) are provided on a side of the mounting plate (1) close to the rotating plate (2); the connecting rod (61) is inserted into the connecting slot (11) and is provided with an inclined first abutting surface (611) at one end away from the connecting slot (11); and an inclined connecting surface (612) is provided at one side of the connecting rod (61) close to the sliding slot (12); the limiting rod (62) is slidably connected to the sliding slot (12) and is provided with an inclined second abutting surface (621) at one end close to the connecting slot (11), and the second abutting surface (621) abuts against the connecting surface (612); the first spring (63) is provided between the connecting rod (61) and the bottom wall of the connecting slot (11) to drive the connecting rod (61) away from the connecting slot (11); The driving member (3) drives the rotating plate (2) to rotate, so that the loading roller (4) abuts against the first abutting surface (611), so that the connecting rod (61) is close to the plug-in slot (11), and the second abutting surface (621) abuts against different positions of the connecting surface (612), so as to drive the limiting rod (62) to abut against the guide roller (5).

2. A release film feeding device according to claim 1, characterized in that: The feeding roller (4) comprises a rotating roller body (41) and a connecting sleeve body (42), wherein the connecting sleeve body (42) is sleeved on the rotating roller body (41).

3. A release film feeding device according to claim 2, characterized in that: The feeding roller (4) further comprises a fixing plate (43), an elastic member (44) and a limiting plate (45); the fixing plate (43) is arranged at one end of the rotating roller body (41) close to the rotating plate (2); the elastic member (44) is arranged between the fixing plate (43) and the connecting sleeve (42) to drive the connecting sleeve (42) away from the rotating roller body (41); and the limiting plate (45) is detachably connected to one end of the rotating roller body (41) away from the rotating plate (2) and abuts against the connecting sleeve (42).

4. The release film feeding device according to claim 3, characterized in that: The feeding roller (4) further comprises a fastening handle (46), wherein the fastening handle (46) is threadedly connected to the rotating roller body (41) and abuts against a side of the limiting plate (45) away from the connecting sleeve body (42).

5. The release film feeding device according to claim 2, characterized in that: The limit assembly (6) further comprises a pressure sensor (64), wherein the pressure sensor (64) is arranged on the bottom wall of the plug-in slot (11) and is electrically connected to the driving member (3), and an abutment portion (613) for abutting against the pressure sensor (64) is provided at one end of the connecting rod (61) close to the plug-in slot (11).

6. A release film feeding device according to claim 5, characterized in that: The first spring (63) is sleeved on the abutment portion (613).

7. The release film feeding device according to claim 5, characterized in that: When the connecting sleeve (42) abuts against the first abutting surface (611), there is a distance between the rotating roller body (41) and the first abutting surface (611).

8. The release film feeding device according to claim 1, characterized in that: The limiting assembly (6) further comprises a second spring (65), wherein the second spring (65) is arranged between the sliding groove (12) and the limiting rod (62) to drive the limiting rod (62) to approach the connecting rod (61).

9. The release film feeding device according to claim 1, characterized in that: The limiting assembly (6) further comprises an anti-sticking layer (66), wherein the anti-sticking layer (66) is arranged on a side of the limiting rod (62) close to the guide roller (5).

10. An FPC automatic laminating machine, characterized in that: It comprises a feeding device as described in any one of claims 1 to 9.

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