Tear-off device for protective adhesive tape on FPC (Flexible Printed Circuit) board

Abstract

The utility model discloses a tearing device for a protective adhesive tape on an FPC (Flexible Printed Circuit) board, which comprises a vacuum adsorption disc for fixing the FPC board, an adhesive tape tearing assembly for tearing the protective adhesive tape and a liftable pressing plate, the adhesive tape tearing assembly is arranged above the vacuum adsorption disc, and the adhesive tape tearing assembly can linearly move back and forth in a reciprocating manner; a motion track with a starting end and a tail end is formed, the starting end corresponds to the pre-tearing end of the protective adhesive tape, the pressing plate is arranged at the starting end and used for jacking up the pre-tearing end of the protective adhesive tape torn from the FPC board, and the pressing plate ascends and descends so that the pressing plate can be switched between the position abutting against the vacuum adsorption disc and the position far away from the vacuum adsorption disc. The adhesive tape tearing assembly is used for clamping the pre-tearing end of the protective adhesive tape at the starting end and tearing the protective adhesive tape away from the FPC board when the protective adhesive tape is moved to the tail end, and therefore a manual mode can be replaced, and the protective adhesive tape can be torn off from the FPC board.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board manufacturing equipment, in particular to a device for tearing off a protective tape on an FPC board. Background Art

[0002] Flexible printed circuit board, whose full English name is Flexible Printed Circuit, abbreviated as FPC, is a flexible printed circuit board made of polyimide or polyester film as the base material.

[0003] Some FPC boards are provided with at least two coatings. Protective tape is often used to cover the parts of the FPC board that do not require coating, or to protect the coating that has been coated. After each coating process is completed, the protective tape on the corresponding coating needs to be torn off. However, the protective tape is currently removed manually, which is time-consuming and labor-intensive, and has low production efficiency. Utility Model Content

[0004] Therefore, in order to solve the above problems, the present invention provides a device for tearing off the protective tape on the FPC board, which can replace the manual method to tear off the protective tape from the FPC board.

[0005] To achieve the above purpose, the technical solutions provided by the present invention are as follows:

[0006] The utility model provides a device for tearing off the protective tape of an FPC board, comprising a vacuum adsorption disk for fixing the FPC board, a tape tearing assembly for tearing off the protective tape, and a liftable pressure plate; the tape tearing assembly is arranged above the vacuum adsorption disk, and the tape tearing assembly can move back and forth in a straight line and form a motion trajectory with a starting end and an end end, and the starting end corresponds to the pre-torn end of the protective tape; the pressure plate is arranged at the starting end to lift up the pre-torn end of the protective tape torn from the FPC board, and the pressure plate rises and falls to switch the pressure plate between abutting and moving away from the vacuum adsorption disk; the tape tearing assembly is used to clamp the pre-torn end of the protective tape at the starting end, and tear the protective tape off the FPC board when moving to the end end.

[0007] Furthermore, the side of the pressure plate facing away from the vacuum adsorption disk has a plurality of jacking serrations arranged at intervals and protruding outward, and the jacking serrations are arranged to be inclined forward.

[0008] Furthermore, the tape tearing assembly includes a first driver and two clamping plates arranged at a front and rear interval, the clamping plates having a plurality of clamping serrations arranged at an interval, and the movement trajectory of each clamping serration is located between the two adjacent lifting serrations corresponding to it; the first driver drives and connects at least one clamping plate so that the two clamping plates switch between clamping and distanced positions with each other.

[0009] Furthermore, the tape tearing assembly includes a mounting bracket, the first driver is a driving cylinder, the driving cylinder and the clamping plate located at the rear are respectively fixed on the mounting bracket, and the clamping plate located at the front is fixed to the telescopic end of the driving cylinder.

[0010] Furthermore, it also includes a linear drive mechanism; the linear drive mechanism includes a screw assembly and guide rails arranged along the front and rear directions, the mounting bracket can be slidably assembled on the guide rails, and the screw assembly drives the mounting bracket to drive the tearing tape assembly to move back and forth in a straight line along the guide rails.

[0011] Furthermore, the screw assembly includes a screw nut pair and a second driver for driving the screw nut pair to move, and the screw of the screw nut pair and the mounting bracket are fixedly connected.

[0012] Furthermore, the second driver is a servo motor.

[0013] Furthermore, it also includes a frame; the vacuum adsorption plate, the tape tearing assembly, the pressure plate and the linear drive mechanism are all assembled on the frame; the vacuum adsorption plate is located at the front of the frame, and the rear of the frame is provided with a waste discharge area for placing the torn protective tape, and the waste discharge area corresponds to the end.

[0014] Furthermore, the pressure plate is assembled on the frame through an elastic connecting member so that the pressure plate elastically abuts against the vacuum adsorption disk under the elastic force limit of the elastic connecting member; the frame is provided with a push rod unit for lifting the pressure plate, and the push rod of the push rod unit is retractable so that the pressure plate can be raised and lowered.

[0015] The technical solution provided by the utility model has the following beneficial effects:

[0016] During operation, the FPC board with the protective tape is first vacuum-adsorbed on the vacuum adsorption disk, and then one end of the protective tape on the FPC board is torn off to form a pre-torn end of the protective tape, which is then attached to the top of the pressing plate to lift the pre-torn end of the protective tape torn from the FPC board. The pressing plate then descends until it abuts and presses the front end portion on the same side of the FPC board and the pre-torn end of the protective tape on the vacuum adsorption disk. Finally, the pre-torn end of the protective tape is clamped by the tape tearing assembly at the starting end of the motion trajectory of the tape tearing assembly, and the protective tape is torn off the FPC board when it moves to the end of the motion trajectory of the tape tearing assembly, so as to complete the machine tearing off of the protective tape on the FPC board, thereby replacing the manual method of tearing off the protective tape, saving time and effort and effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure shows a schematic structural diagram of a device for removing the protective tape on an FPC board in an embodiment;

[0018] Figure 2 Shown is a top view of a device for removing the protective tape on an FPC board in an embodiment. DETAILED DESCRIPTION

[0019] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0020] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figure 1 and Figure 2 As shown, this embodiment provides a device for tearing off the protective tape on the FPC board (hereinafter referred to as the tearing device), which is used to tear off the protective tape attached to the FPC board, and the adhesive backing of the protective tape of this embodiment has low adhesion.

[0022] The tearing device of this embodiment includes a vacuum adsorption plate 31 for fixing the FPC board, a tape tearing assembly 1 for tearing off the protective tape, and a liftable pressing plate 2.

[0023] The tape tearing assembly 1 is arranged above the vacuum adsorption disk 31, and the tape tearing assembly 1 can move back and forth in a straight line, and forms a motion trajectory with a starting end 13 and an end end 14. The starting end 13 of the motion trajectory of the tape tearing assembly 1 corresponds to the pre-torn end of the protective tape to ensure that the tape tearing assembly 1 can clamp the pre-torn end of the protective tape.

[0024] The pressing plate 2 is arranged at the starting end 13 of the motion trajectory of the tape tearing assembly 1 to lift the pre-torn end of the protective tape torn from the FPC board, and the pressing plate 2 rises and falls to switch the pressing plate 2 between the position of abutting and away from the vacuum adsorption disk 31.

[0025] When the pre-torn end of the protective tape is first lifted by the pressure plate 2 and then the pressure plate 2 is lowered to press the FPC board itself, the tape tearing assembly 1 is used to clamp the pre-torn end of the protective tape at the starting end 13 of its movement trajectory, and tear the protective tape off the FPC board when it moves to the end 14 of the movement trajectory of the tape tearing assembly 1 to complete the entire protective tape tearing action, and also ensure that the FPC board is firmly adsorbed on the vacuum adsorption disk 31 and is not lifted up by the tape tearing assembly 1.

[0026] In this embodiment, the tape tearing assembly 1 includes a mounting bracket 11, a first driver, and two clamping plates 12 arranged at a front and rear interval. The first driver drives and connects one of the clamping plates 12 located in the front so that the two clamping plates 12 can switch between clamping and moving away from each other. The first driver and the clamping plate 12 located in the rear are respectively fixed on the mounting bracket 11, and the clamping plate 12 located in the front is fixed to the telescopic end of the first driver.

[0027] When the two clamping plates 12 are clamped together, they can ensure that the protective tape is clamped; when the two clamping plates 12 are separated from each other, they can ensure that the protective tape is released. Of course, if the adhesive backing of the protective tape sticks to the clamping plates 12, a non-adhesive protective film or release film can be pre-applied to the adhesive backing area of ​​the pre-tear end of the protective tape to ensure that the protective tape is released smoothly at the end 14 of the motion trajectory of the tape tearing assembly 1.

[0028] The tearing device of this embodiment also includes a linear drive mechanism 4 and a frame 3. The linear drive mechanism 4 includes a screw assembly and a guide rail 41 arranged along the front and rear directions. The mounting bracket 11 can be slidably assembled on the guide rail 41. The screw assembly drives the mounting bracket 11 to drive the tape tearing assembly 1 to move back and forth in a straight line along the guide rail 41.

[0029] In addition, the vacuum adsorption disk 31, the tape tearing assembly 1, the pressure plate 2 and the linear drive mechanism 4 are all assembled on the frame 3. The vacuum adsorption disk 31 is located at the front of the frame 3. The rear of the frame 3 is provided with a waste discharge area 32 for placing the torn protective tape. The waste discharge area 32 corresponds to the end 14 of the movement trajectory of the tape tearing assembly 1, so that the tape tearing assembly 1 clamps the pre-torn end of the protective tape and moves to the end 14 of the movement trajectory of the tape tearing assembly 1, and then releases the clamping plate 12, so that the protective tape torn from the FPC board can fall into the waste discharge area 32, thereby collecting the torn protective tape.

[0030] In this specific embodiment, the first driver is a driving cylinder, the screw assembly includes a screw nut pair and a second driver for driving the screw nut pair to move, the specific second driver is a servo motor, the screw of the screw nut pair and the mounting bracket 11 are fixedly connected to realize the screw driving the mounting bracket 11 to move forward and backward linearly on the guide rail 41.

[0031] During operation, the FPC board with the protective tape is first vacuum-adsorbed on the vacuum adsorption disk 31, and then one end of the protective tape on the FPC board is torn off to form a pre-torn end of the protective tape, which is then attached to the top of the pressing plate 2 to lift the pre-torn end of the protective tape torn from the FPC board. The pressing plate 2 then descends until it abuts and presses the front end portion of the FPC board on the same side of the pre-torn end of the protective tape on the vacuum adsorption disk 31. Finally, the pre-torn end of the protective tape is clamped by the tape tearing assembly 1 at the starting end 13 of the motion trajectory of the tape tearing assembly 1, and the protective tape is torn off the FPC board when it moves to the end 14 of the motion trajectory of the tape tearing assembly 1. The torn protective tape is then released and falls into the waste discharge area 32, thereby completing the machine tearing off of the protective tape on the FPC board, thereby replacing the manual method of tearing off the protective tape, saving time and effort and effectively improving production efficiency.

[0032] After the protective tape is completely torn off, the pressing plate 2 rises and moves away from the FPC board, and then the FPC board on the vacuum adsorption plate 31 is taken out of the tearing device.

[0033] In another preferred embodiment, the side of the pressure plate 2 facing away from the vacuum adsorption disk 31 has a plurality of lifting serrations 21 arranged at intervals and protruding outward, and the lifting serrations 21 are arranged to be inclined forward so that the pre-torn end of the protective tape is also tilted forward, so that the clamping plate 12 can smoothly clamp the protective tape.

[0034] The clamping plate 12 has a plurality of clamping serrations 121 arranged at intervals, and the movement trajectory of each clamping serration 121 is located between the two adjacent lifting serrations 21 corresponding thereto, so as to ensure that when the two clamping plates 12 clamp the protective tape lifted by the pressure plate 2, the clamping serrations 121 of the clamping plate 12 pass through the gap between the two corresponding lifting serrations 21 until the portion of the protective tape located between the two lifting serrations 21 is clamped. At the same time, the serrated clamping plate 12 is conducive to reducing the bonding area between the clamping plate 12 and the protective tape, so as to ensure that the adhesion between them is small enough, so as to further ensure that the protective tape is smoothly released to the waste discharge area 32.

[0035] In another preferred embodiment, the pressure plate 2 is assembled on the frame 3 through an elastic connector (such as a spring assembly) so that the pressure plate 2 elastically abuts against the vacuum adsorption disk 31 under the elastic force limit of the elastic connector. The frame 3 is provided with a push rod unit for lifting the pressure plate 2, and the push rod of the push rod unit is retractable so that the pressure plate 2 can be raised and lowered.

[0036] When the ejector pin of the ejector pin unit extends upward, the pressing plate 2 is lifted and raised, so as to facilitate taking out the FPC board or placing a new FPC board with protective tape.

[0037] When the ejector pin of the ejector pin unit retracts downward, the pressing plate 2 is pulled back and lowered by the elastic force of the elastic connector to press the FPC board onto the vacuum adsorption plate 31 .

[0038] Of course, in other embodiments, the elastic connector may not be required, and the pressing plate 2 may be directly driven up and down by a conventional driving component such as a driving cylinder, so as to press or release the FPC board.

[0039] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A device for removing protective tape on an FPC board, characterized by: It includes a vacuum adsorption plate for fixing the FPC board, a tape tearing assembly for tearing off the protective tape, and a lifting pressure plate; The tape tearing assembly is arranged above the vacuum adsorption plate, and the tape tearing assembly can move back and forth in a straight line and form a motion track with a starting end and an end end, and the starting end corresponds to the pre-torn end of the protective tape; The pressing plate is provided at the starting end to lift the pre-torn end of the protective tape torn from the FPC board, and the pressing plate is raised and lowered to switch between abutting against and away from the vacuum adsorption plate; The tape tearing assembly is used to clamp the pre-torn end of the protective tape at the starting end, and tear the protective tape off the FPC board when moving to the end end.

2. The device for removing the protective tape on an FPC board according to claim 1, characterized in that: A side of the pressure plate facing away from the vacuum adsorption disk is provided with a plurality of jacking saw teeth which are arranged at intervals and protrude outwards, and the jacking saw teeth are arranged to be inclined forward.

3. The device for removing the protective tape on an FPC board according to claim 2, characterized in that: The tape tearing assembly includes a first driver and two clamping plates arranged at a front and rear interval, the clamping plates have a plurality of clamping serrations arranged at an interval, and the movement trajectory of each clamping serration is located between the two adjacent lifting serrations corresponding to it; the first driver drives and connects at least one clamping plate to switch the two clamping plates between clamping and moving away from each other.

4. The device for removing the protective tape on an FPC board according to claim 3, characterized in that: The tape tearing assembly includes a mounting bracket, the first driver is a driving cylinder, the driving cylinder and the clamping plate located at the rear are respectively fixed on the mounting bracket, and the clamping plate located at the front is fixed to the telescopic end of the driving cylinder.

5. The device for removing the protective tape on an FPC board according to claim 4, characterized in that: It also includes a linear drive mechanism; the linear drive mechanism includes a screw assembly and guide rails arranged along the front and rear directions, the mounting bracket can be slidably assembled on the guide rails, and the screw assembly drives the mounting bracket to drive the tearing tape assembly to move back and forth in a straight line along the guide rails.

6. The device for removing the protective tape on an FPC board according to claim 5, characterized in that: The screw assembly includes a screw nut pair and a second driver for driving the screw nut pair to move. The screw of the screw nut pair and the mounting bracket are fixedly connected.

7. The device for removing the protective tape on an FPC board according to claim 6, characterized in that: The second driver is a servo motor.

8. The device for removing the protective tape on an FPC board according to any one of claims 5 to 7, characterized in that: It also includes a frame; the vacuum adsorption plate, the tape tearing assembly, the pressure plate and the linear drive mechanism are all assembled on the frame; the vacuum adsorption plate is located at the front of the frame, and the rear of the frame is provided with a waste discharge area for placing the torn protective tape, and the waste discharge area corresponds to the end.

9. The device for removing the protective tape on an FPC board according to claim 8, characterized in that: The pressing plate is assembled on the frame through an elastic connecting piece so that the pressing plate elastically abuts against the vacuum adsorption disk under the elastic force limit of the elastic connecting piece; the frame is provided with a push rod unit for lifting the pressing plate, and the push rod of the push rod unit is retractable so that the pressing plate can be raised and lowered.

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