Continuous rubberizing mechanism for lithium battery foil

Abstract

The utility model provides a lithium battery foil continuous rubberizing mechanism which comprises a gummed paper unwinding mechanism, a main driving mechanism, a release paper tearing mechanism, a tension control mechanism, a tension detection mechanism, a release paper winding mechanism and a rubberizing roller, an adhesive tape on the adhesive tape unwinding mechanism sequentially passes through the main driving mechanism, the release paper tearing mechanism, the tension control mechanism and the tension detection mechanism, the adhesive tape is wound on the release paper winding mechanism by release paper torn by the release paper tearing mechanism, and the adhesive tape from the adhesive tape is pasted on a foil material by the adhesive tape pasting roller. According to the utility model, the linear speeds of the gummed paper and the foil can be kept the same, so that the tension of the gummed paper is kept constant after being set, and the foil and the adhesive tape can be prevented from wrinkling by adjusting the tension.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery manufacturing, in particular to a lithium battery foil continuous gluing mechanism. Background Art

[0002] like Figure 1 As shown, the conventional lithium battery foil continuous gluing device in the prior art has a process consisting of adhesive paper unwinding-driving-tearing release paper-buffering-correction-gluing, which includes a main drive a1, a release paper tearing mechanism a2, an adhesive paper unwinding mechanism a3, a buffering mechanism a4, a correction mechanism a5, a gluing mechanism a6 and a release paper winding mechanism a7. Figure 2 As shown, if there is only one buffer mechanism on the adhesive paper path and the linear speed is kept the same as the foil linear speed, the adhesive paper a8 and the foil a9 will have different tensions, which will easily lead to wrinkles and affect the quality. Utility Model Content

[0003] The utility model provides a lithium battery foil continuous gluing mechanism to solve at least one of the above technical problems.

[0004] To solve the above-mentioned problem, as one aspect of the utility model, a continuous gluing mechanism for lithium battery foil is provided, comprising: a glue paper unwinding mechanism, a main driving mechanism, a release paper tearing mechanism, a tension control mechanism, a tension detection mechanism, a release paper winding mechanism and a glue roller. The adhesive tape on the adhesive paper unwinding mechanism passes through the main driving mechanism, the release paper tearing mechanism, the tension control mechanism and the tension detection mechanism in sequence. The release paper torn off by the release paper tearing mechanism is wound on the release paper winding mechanism, and the glue roller sticks the adhesive paper from the adhesive tape to the foil.

[0005] Preferably, a buffer mechanism is provided between the release paper tearing mechanism and the release paper winding mechanism.

[0006] Preferably, the cache mechanism includes a first motor adopting a torque control mode, a first swing arm and a first roller, the first end of the first swing arm is connected to the output end of the first motor, and the first roller is connected to the second end of the first swing arm.

[0007] Preferably, the tension control mechanism includes a second motor, a second swing arm and a second roller in a torque control mode, the second end of the second swing arm is connected to the output end of the second motor, and the second roller is connected to the second end of the second swing arm.

[0008] Preferably, the tension detection mechanism comprises a pressure sensor, a third roller and a fixed seat, the third roller is mounted on the pressure sensor via a bracket, and the pressure sensor is mounted on the fixed seat.

[0009] Preferably, a deviation correction mechanism is provided between the tension control mechanism and the tension detection mechanism.

[0010] Due to the adoption of the above technical scheme, the utility model can keep the linear speed of the adhesive tape and the foil material the same, so that the tension of the adhesive tape remains constant after being set, and wrinkles of the foil material and the adhesive tape can be avoided by adjusting the tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The schematic diagram of the continuous gluing mechanism of lithium battery foil in the prior art is shown schematically;

[0012] Figure 2 A schematic diagram showing the crumpling of foil or adhesive paper is shown;

[0013] Figure 3 The principle diagram of the continuous gluing mechanism of lithium battery foil in the utility model is schematically shown;

[0014] Figure 4 The principle diagram of the release paper winding mechanism is schematically shown;

[0015] Figure 5 The schematic diagram of the structure of the cache mechanism is shown schematically;

[0016] Figure 6 The structural diagram of the tension control mechanism is schematically shown;

[0017] Figure 7 The structural diagram of the tension detection mechanism is schematically shown;

[0018] Figure 8 The schematic diagram of the glue application roller and the glue application position is schematically shown.

[0019] The reference numerals in the figure are as follows: 1. adhesive paper unwinding mechanism; 2. main driving mechanism; 3. release paper tearing mechanism; 4. tension control mechanism; 5. tension detection mechanism; 6. release paper winding mechanism; 7. adhesive roller; 8. adhesive tape; 9. foil; 10. cache mechanism; 11. first motor; 12. first swing arm; 13. first roller; 14. second motor; 15. second swing arm; 16. second roller; 17. pressure sensor; 18. third roller; 19. fixing seat; 20. bracket; 22. release paper; 23. adhesive paper. DETAILED DESCRIPTION

[0020] The following is a detailed description of the embodiments of the present invention, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0021] As one aspect of the utility model, a continuous gluing mechanism for lithium battery foil is provided, comprising: a glue paper unwinding mechanism 1, a main driving mechanism 2, a release paper tearing mechanism 3, a tension control mechanism 4, a tension detection mechanism 5, a release paper winding mechanism 6 and a gluing roller 7. The adhesive tape 8 on the adhesive paper unwinding mechanism 1 passes through the main driving mechanism 2, the release paper tearing mechanism 3, the tension control mechanism 4, and the tension detection mechanism 5 in sequence. The release paper 22 of the adhesive tape 8 torn by the release paper tearing mechanism 3 is wound on the release paper winding mechanism 6, and the gluing roller 7 sticks the adhesive paper 23 from the adhesive tape 8 to the foil 9.

[0022] Preferably, a buffer mechanism 10 is provided between the release paper tearing mechanism 3 and the release paper winding mechanism 6. When the release paper tearing mechanism 3 is in use, the adhesive tape and release paper are peeled off manually to form a herringbone shape, which is wound around the roller to the winding disk of the release paper tearing mechanism 3.

[0023] Preferably, the cache mechanism 10 includes a first motor 11, a first swing arm 12 and a first roller 13 in a torque control mode, wherein the first end of the first swing arm 12 is connected to the output end of the first motor 11, and the first roller 13 is connected to the second end of the first swing arm 12. Among them, the first motor 11 is provided with an encoder, which can output the position relationship in real time. The length of the release paper is changed by the forward and reverse rotation (swing) of the motor to match the speed of the winding and the main drive. For example, the motor type is a servo joint motor RMD-4015-V3, with a mechatronics design, a built-in drive and position sensor, and a drive-integrated controller. It has a small space and a large torque. It is the first time that it has been introduced from high-end robotic arms, quadruped robot dogs, robots, and AGV smart cars into a lithium battery foil continuous gluing machine, and can easily achieve a gluing center distance of ≥50mm.

[0024] Preferably, the tension control mechanism 4 includes a second motor 14 in torque control mode, a second swing arm 15 and a second roller 16, wherein the second end of the second swing arm 15 is connected to the output end of the second motor 14, and the second roller 16 is connected to the second end of the second swing arm 15. The tension control mechanism 4 may be a single swing arm, a double swing arm, or a linear type.

[0025] Preferably, the tension detection mechanism 5 includes a pressure sensor 17, a third roller 18 and a fixed seat 19, wherein the third roller 18 is mounted on the pressure sensor 17 through a bracket 20, and the pressure sensor 17 is mounted on the fixed seat 19. The pressure sensor 17 can detect the pressure formed by the tension of the adhesive paper passing through the roller. The data of the tension detection is fed back to the motor of the tension control mechanism, and the torque output is adjusted to change the tension of the adhesive paper in the positive and negative directions to achieve tension closed-loop control, and its structure is the same as the cache structure (Note: the motor uses the torque control mode at this time). The adhesive paper that has been peeled and tension-controlled is then transferred to the next position to be adhered to the pole piece on the adhesive roller.

[0026] Preferably, a deviation correction mechanism 21 is provided between the tension control mechanism 4 and the tension detection mechanism 5 .

[0027] In the above technical scheme, the utility model releases continuous adhesive tape through unwinding damping (which can be friction plate, magnetic damping, motor), and the speed is controlled by the main drive mechanism 2 to keep the linear speed the same as the foil linear speed, and the release paper on the adhesive tape is torn off and collected by the release paper winding mechanism. The winding speed is controlled by a cache in the path to achieve the synchronous speed of the waste material.

[0028] Due to the adoption of the above technical scheme, the utility model can keep the linear speed of the adhesive tape and the foil material the same, so that the tension of the adhesive tape remains constant after being set, and wrinkles of the foil material and the adhesive tape can be avoided by adjusting the tension.

[0029] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lithium battery foil continuous gluing mechanism, characterized in that: include: The adhesive tape unwinding mechanism (1), the main driving mechanism (2), the release paper tearing mechanism (3), the tension control mechanism (4), the tension detection mechanism (5), the release paper winding mechanism (6) and the adhesive roller (7), the adhesive tape (8) on the adhesive tape unwinding mechanism (1) passes through the main driving mechanism (2), the release paper tearing mechanism (3), the tension control mechanism (4) and the tension detection mechanism (5) in sequence, the release paper (22) torn off by the release paper tearing mechanism (3) is wound on the release paper winding mechanism (6), and the adhesive roller (7) sticks the adhesive tape (23) on the adhesive tape (8) onto the foil material (9).

2. The lithium battery foil continuous gluing mechanism according to claim 1, characterized in that: A buffer mechanism (10) is provided between the release paper tearing mechanism (3) and the release paper winding mechanism (6).

3. The lithium battery foil continuous gluing mechanism according to claim 2, characterized in that: The buffer mechanism (10) comprises a first motor (11) adopting a torque control mode, a first swing arm (12) and a first roller (13), wherein the first end of the first swing arm (12) is connected to the output end of the first motor (11), and the first roller (13) is connected to the second end of the first swing arm (12).

4. The lithium battery foil continuous gluing mechanism according to claim 1, characterized in that: The tension control mechanism (4) comprises a second motor (14) adopting a torque control mode, a second swing arm (15) and a second roller (16), wherein the second end of the second swing arm (15) is connected to the output end of the second motor (14), and the second roller (16) is connected to the second end of the second swing arm (15).

5. The lithium battery foil continuous gluing mechanism according to claim 1, characterized in that: The tension detection mechanism (5) comprises a pressure sensor (17), a third roller (18) and a fixed seat (19); the third roller (18) is mounted on the pressure sensor (17) via a bracket (20); and the pressure sensor (17) is mounted on the fixed seat (19).

6. The lithium battery foil continuous gluing mechanism according to claim 1, characterized in that: A deviation correction mechanism (21) is provided between the tension control mechanism (4) and the tension detection mechanism (5).

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