Low-tension winding mechanism for polyimide film silica gel belt production

Abstract

This invention provides a low-tension winding mechanism for producing polyimide film silicone tape, relating to the field of polyimide film silicone tape production technology. It includes a winding drum and a winding motor. The winding motor is shaft-connected to the rear side of the winding drum, and a winding bracket is connected to the rear end of the winding drum. A left auxiliary pressure roller and a right auxiliary pressure roller are symmetrically distributed on the left and right sides of the winding drum. Displacement adjustment frames are limited and connected to the sides of the left and right auxiliary pressure rollers via a rotating shaft. A spring is connected to the rotating shaft via a shaft connecting block. An adjusting screw is connected to the rear end of the displacement adjustment frame via a limiting drive block. A motor is shaft-connected to the side end of the adjusting screw. Adjusting screws are symmetrically installed within the groove wall of the winding bracket. This invention solves the problem that insufficient tension during low-tension winding of polyimide film silicone tape can easily lead to loosening of the wound tape.

Description

Technical Field

[0001] This utility model relates to the field of polyimide film silicone tape production technology, specifically to a low-tension winding mechanism for polyimide film silicone tape production. Background Technology

[0002] Polyimide film silicone tape is a type of tape made by coating high-temperature resistant adhesive (such as silicone pressure-sensitive adhesive) onto a polyimide film substrate. During production, the formed film silicone tape needs to be rolled into rolls for packaging and transportation. However, when rolling polyimide film silicone tape with low tension, the low tension can easily cause the rolled tape to loosen. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a low-tension winding mechanism for producing polyimide film silicone tape is provided to solve the problem that the low tension during low-tension winding of polyimide film silicone tape can easily cause the wound tape to loosen.

[0004] To achieve the above objectives, a low-tension winding mechanism for producing polyimide film silicone tape is provided, comprising: a winding drum and a winding motor, wherein the winding drum is axially connected to the rear side of the winding motor.

[0005] The winding drum is connected to a winding bracket at its rear end. A left auxiliary pressure roller and a right auxiliary pressure roller are symmetrically distributed on the left and right sides of the winding drum. The left and right auxiliary pressure rollers are connected to a displacement adjustment frame at their side ends by a rotating shaft. The rotating shaft is connected to a spring through a shaft connecting block. The rear end of the displacement adjustment frame is connected to an adjustment screw through a limit drive block. A motor is shaft-connected to the side end of the adjustment screw. Adjustment screws are symmetrically installed in the groove wall of the winding bracket.

[0006] Furthermore, a winding motor is embedded and fixed on the rear side of the winding bracket, and a frequency converter is installed on the rear shaft surface of the winding drum.

[0007] Furthermore, a connecting plate is welded to the rear side of the winding bracket, and a transmission column is connected between the connecting plates; and the transmission column is located at the rear side of the winding motor.

[0008] Furthermore, the left and right end cylindrical surfaces of the transmission column are connected to the adjusting screw shaft via a transmission wheel assembly, and a motor is fixed to the right end of the winding bracket.

[0009] Furthermore, the outer roller surfaces of both the left and right auxiliary pressure rollers are fitted with rubber roller sleeves, and the front and rear ends of both the left and right auxiliary pressure rollers are connected to rotating shafts.

[0010] Furthermore, a shaft connecting block is sleeved and fixed on the surface of the rotating shaft, and a spring is supported on the side of the shaft connecting block; and the spring connection is located in the displacement adjustment frame groove.

[0011] Furthermore, a displacement sensor is embedded in the side end of the displacement adjustment frame; and the displacement sensor is located at the right end of the right auxiliary pressure roller.

[0012] The beneficial effects of this utility model are as follows: the low-tension winding mechanism for producing polyimide film silicone tape utilizes a left and right auxiliary pressure roller, elastically connected within a displacement adjustment frame, symmetrically positioned on both sides of the winding drum. The rotation of the adjusting screw drives the left and right auxiliary pressure rollers within the displacement adjustment frame to move and press against the surface of the continuously increasing diameter polyimide film silicone tape. This provides stable rolling pressure on the polyimide film silicone tape surface of the low-tension winding drum, preventing slippage or slack during winding. This ensures smooth winding of the polyimide film silicone tape by the low-tension winding mechanism, effectively preventing wrinkles on the surface of the wound polyimide film silicone tape, enhancing the winding quality of the low-tension winding mechanism, and improving its winding efficiency. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of the low-tension winding mechanism for producing polyimide film silicone tape according to an embodiment of the present invention.

[0014] Figure 2 This is a top cross-sectional view of the low-tension winding mechanism for producing polyimide film silicone tape according to an embodiment of the present invention.

[0015] Figure 3 This is a front view schematic diagram of the low-tension winding mechanism for producing polyimide film silicone tape according to an embodiment of the present invention.

[0016] Figure 4 This is a top view partial cross-sectional structural diagram of the right auxiliary pressure roller and displacement adjustment frame according to an embodiment of the present invention.

[0017] In the diagram: 1. Rewinding drum; 11. Rewinding bracket; 12. Rewinding motor; 13. Connecting plate; 14. Frequency converter; 2. Left auxiliary pressure roller; 21. Right auxiliary pressure roller; 22. Rubber roller sleeve; 23. Rotating shaft; 24. Shaft connecting block; 3. Displacement adjustment frame; 31. Displacement sensor; 32. Limit drive block; 33. Spring; 4. Adjusting screw; 41. Transmission column; 42. Transmission wheel assembly; 43. Electric motor. Detailed Implementation

[0018] Reference Figures 1 to 4 As shown, this utility model provides a low-tension winding mechanism for producing polyimide film silicone tape, including: a winding drum 1 and a winding motor 12, with the winding motor 12 shaft-connected to the rear side of the winding drum 1.

[0019] The rear end of the take-up drum 1 is connected to the take-up bracket 11. The left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 are symmetrically distributed on the left and right sides of the take-up drum 1. The left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 are connected to the displacement adjustment frame 3 by a rotating shaft 23. The rotating shaft 23 is connected to the spring 33 by a shaft connecting block 24. The rear end of the displacement adjustment frame 3 is connected to the adjustment screw 4 by a limit drive block 32. The side end of the adjustment screw 4 is connected to the motor 43. The adjustment screw 4 is symmetrically installed in the groove wall of the take-up bracket 11.

[0020] First, the polyimide film silicone tape is passed through the left auxiliary pressure roller 2, the right auxiliary pressure roller 21, and the winding drum 1, and fixed to the drum surface. The winding motor 12 controls the winding drum 1 to rotate and wind the tape using a variable frequency drive, so that the wound polyimide film silicone tape is in a low-tension state. During winding, the roller surfaces of the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 assist in rolling contact with the moving polyimide film silicone tape, so that the low-tension wound polyimide film silicone tape is always in close contact with the winding surface. When the displacement sensor 31 detects the auxiliary pressure rollers... When the polyimide film silicone tape is squeezed and moved by the winding, the motor 43 controls the adjusting screw 4 to rotate. The rotating adjusting screw 4 drives the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 inside the displacement adjusting frame 3 to move outward with the increasing diameter of the polyimide film silicone tape roll surface. This facilitates the rolling and pressing of the polyimide film silicone tape on the low-tension winding drum surface, preventing the polyimide film silicone tape from slipping or loosening during the winding process, and ensuring that the low-tension winding mechanism can smoothly wind the polyimide film silicone tape.

[0021] In this embodiment, a winding motor 12 is embedded and fixed on the rear side of the winding bracket 11, and a frequency converter 14 is installed on the rear shaft surface of the winding drum 1.

[0022] As a preferred implementation, the frequency converter 14 adjusts the output torque and speed of the winding motor 12 through encoder feedback, so that as the surface diameter of the polyimide film silicone tape increases, the output torque of the winding motor 12 needs to increase accordingly to maintain constant low tension and ensure the stability of the winding process.

[0023] In this embodiment, a connecting plate 13 is welded to the rear side of the winding bracket 11, and a transmission column 41 is connected between the connecting plates 13; the transmission column 41 is located at the rear side of the winding motor 12. The left and right ends of the transmission column 41 are connected to the shaft of the adjusting screw 4 through the transmission wheel assembly 42, and a motor 43 is fixed to the right end of the winding bracket 11.

[0024] In a preferred embodiment, the transmission rotation of the transmission wheel assembly 42 and the transmission column 41 facilitates the synchronous rotation of the two sets of adjusting screws 4 driven by the motor 43, thereby controlling the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 to move the same displacement.

[0025] In this embodiment, rubber roller sleeves 22 are fitted onto the outer roller surfaces of both the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21, and rotating shafts 23 are connected to the front and rear ends of both the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21. A shaft connecting block 24 is fitted and fixed onto the surface of the rotating shaft 23, and a spring 33 is supported on the side of the shaft connecting block 24; and the spring 33 is connected and located in the groove of the displacement adjusting frame 3.

[0026] In a preferred embodiment, the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 provide auxiliary pressure to the polyimide film silicone tape being wound, ensuring stable winding of the polyimide film silicone tape and preventing slippage or slack during winding. This also effectively avoids wrinkles on the surface of the polyimide film silicone tape during low-tension winding. The spring 33 provides elastic support for the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 as they press against the surface of the polyimide film silicone tape.

[0027] In this embodiment, a displacement sensor 31 is embedded in the side end of the displacement adjustment frame 3; and the displacement sensor 31 is located at the right end of the right auxiliary pressure roller 21.

[0028] In a preferred embodiment, the displacement sensor 31 detects the movement displacement of the displacement sensor 31 to control the horizontal movement of the displacement adjustment frame 3, so that the limit drive block 32 at the rear end of the displacement adjustment frame 3 converts the rotational motion of the adjustment screw 4 into linear motion, thereby driving the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 to move horizontally, so that the left auxiliary pressure roller 2 and the right auxiliary pressure roller 21 can move and press against the surface of the film silicone tape with the continuously increasing roll diameter.

[0029] This invention relates to a low-tension winding mechanism for polyimide film silicone tape production. This mechanism effectively solves the problem of loosening of the tape due to insufficient tension during low-tension winding of polyimide film silicone tape. It helps prevent slippage or slackness of the polyimide film silicone tape during winding, ensuring smooth winding and preventing wrinkles on the surface. This enhances the winding quality and efficiency of the low-tension winding mechanism, making it suitable for low-tension winding mechanisms used in the production of polyimide film silicone tape.

Claims

1. A low-tension winding mechanism for producing polyimide film silicone tape, comprising: A take-up drum (1) and a take-up motor (12), wherein the take-up drum (1) is shaft-connected to the rear side of the take-up motor (12), characterized in that: The take-up drum (1) is connected to a take-up bracket (11) at its rear end. The take-up drum (1) is symmetrically distributed with a left auxiliary pressure roller (2) and a right auxiliary pressure roller (21) on its left and right sides. The left auxiliary pressure roller (2) and the right auxiliary pressure roller (21) are connected to a displacement adjustment frame (3) by a rotating shaft (23). The rotating shaft (23) is connected to a spring (33) by a shaft connecting block (24). The rear end of the displacement adjustment frame (3) is connected to an adjustment screw (4) by a limiting drive block (32). The side end of the adjustment screw (4) is connected to a motor (43). The adjustment screw (4) is symmetrically installed in the groove wall of the take-up bracket (11).

2. The low-tension winding mechanism for producing polyimide film silicone tape according to claim 1, characterized in that, The winding bracket (11) has a winding motor (12) embedded and fixed on its rear side, and the winding drum (1) has a frequency converter (14) installed on its rear shaft surface.

3. The low-tension winding mechanism for producing polyimide film silicone tape according to claim 1, characterized in that, The rear side of the winding bracket (11) is welded with a connecting plate (13), and a transmission column (41) is connected between the connecting plates (13); and the transmission column (41) is located at the rear side of the winding motor (12).

4. The low-tension winding mechanism for producing polyimide film silicone tape according to claim 3, characterized in that, The left and right ends of the transmission column (41) are connected to the shaft of the adjusting screw (4) through the transmission wheel assembly (42), and the right end of the winding bracket (11) is fixed with a motor (43).

5. The low-tension winding mechanism for producing polyimide film silicone tape according to claim 1, characterized in that, The outer roller surfaces of the left auxiliary pressure roller (2) and the right auxiliary pressure roller (21) are both fitted with rubber roller sleeves (22), and the front and rear ends of the left auxiliary pressure roller (2) and the right auxiliary pressure roller (21) are both connected to rotating shafts (23).

6. The low-tension winding mechanism for producing polyimide film silicone tape according to claim 5, characterized in that, A shaft connecting block (24) is sleeved and fixed on the surface of the rotating shaft (23), and a spring (33) is supported on the side of the shaft connecting block (24); and the spring (33) is connected to the groove of the displacement adjusting frame (3).

7. The low-tension winding mechanism for producing polyimide film silicone tape according to claim 1, characterized in that, The displacement adjustment frame (3) has a displacement sensor (31) embedded in its side end; and the displacement sensor (31) is located at the right end of the right auxiliary pressure roller (21).

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