Square aluminum shell battery top end side edge film wrapping device

Abstract

The utility model discloses a square aluminum shell battery top end side edge film wrapping device which comprises a bottom plate, a linear guide rail is fixed on the bottom plate, a first sliding block and a second sliding block are connected to the guide rail in a sliding mode, and U-shaped blocks are fixed to the first sliding block and the second sliding block. A rubber roller used for rolling and pasting a PET blue film on the side edge of the square aluminum shell battery is rotationally connected between the two ends of each U-shaped block, the first sliding block and the second sliding block are connected through a gear transmission mechanism, the first sliding block is connected with a linear pushing mechanism, and the gear transmission mechanism comprises a large rack fixedly connected with the first sliding block. According to the square aluminum shell battery top end side edge film wrapping device provided by the utility model, rolling is carried out by adopting a mode that the two rubber rollers move in opposite directions, so that PET blue films on two sides of two pole columns at the top end of the square aluminum shell battery can be rolled at the same time, and the two rubber rollers can be moved to a position between the two pole columns to roll the PET blue film between the two pole columns.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a top side film coating device for a square aluminum shell battery. Background Art

[0002] In the field of lithium battery manufacturing, when square aluminum shell batteries are sent out of the factory for module production, a layer of PET blue film needs to be attached to the surface of the aluminum shell to ensure good insulation performance between the module batteries, and to ensure good coverage between the aluminum shell battery top cover patch and the shell, and to ensure that the PET blue film is flat on the top of the aluminum shell. However, in actual production, due to the compact size of the end face of the square aluminum shell battery, and the distribution of positive and negative poles, the actual use space is small. The existing production technology cannot simultaneously meet the details of being simple and easy to use, low cost, and being able to flatten the PET blue film on the end face of the aluminum shell. Therefore, the end face of the basic battery is not well insulated when it leaves the factory, which poses a serious safety hazard.

[0003] Therefore, in order to improve the appearance qualification rate and insulation protection of products before leaving the factory, it is necessary to provide a top side film coating device for square aluminum shell batteries with simple structure, convenient installation, low cost and quick maintenance. Utility Model Content

[0004] 1. Technical problems to be solved: In actual production, due to the compact size of the end face of the square aluminum shell battery, and the distribution of positive and negative poles, the actual use space is small. The existing production technology cannot simultaneously meet the requirements of being simple and easy to use, low cost, and being able to flatten the PET blue film on the end face of the aluminum shell. As a result, the end face of the battery is not well insulated when it leaves the factory, which poses a serious safety hazard.

[0005] In view of the above technical problems, the utility model provides a top side film wrapping device for a square aluminum shell battery.

[0006] 2. Technical solution:

[0007] A film coating device for the top side of a square aluminum shell battery comprises a bottom plate, a linear guide rail is fixed on the bottom plate, a first slider and a second slider are slidably connected to the guide rail, a U-shaped block is fixed to the first slider and the second slider, a rubber roller for rolling and flattening a PET blue film on the side of the square aluminum shell battery is rotatably connected between the two ends of the two U-shaped blocks, the first slider and the second slider are connected by a gear transmission mechanism, the first slider is connected to a linear propulsion mechanism, the gear transmission mechanism comprises a large rack fixedly connected to the first slider, the large rack is slidably connected to the guide block, the large rack meshes with a gear, the gear meshes with a small rack, the gear is rotatably connected to the bottom plate, the large rack and the small rack are arranged in parallel relative to the gear, the large rack, the small rack and the guide rail are arranged in parallel, and the small rack is fixedly connected to the second slider.

[0008] Furthermore, the linear propulsion mechanism is a crank slider mechanism, including a motor, a crank and a connecting rod. The motor is fixed on the base plate, the movable end of the motor is fixedly connected to one end of the crank, the other end of the crank is hinged to the connecting rod, and the end of the connecting rod away from the crank is hinged to the first slider.

[0009] Furthermore, the U-shaped block is fixed to the front end of the first slider or the second slider through an L-shaped connecting piece, and a triangular reinforcing plate is fixed at the corner of the connecting piece.

[0010] Furthermore, the motor is fixedly connected to the base plate via bolts.

[0011] Furthermore, the rubber roller is made of polypropylene elastic material.

[0012] 3. Beneficial effects:

[0013] The utility model provides a side film coating device for the top of a square aluminum shell battery. The first slider is pushed to move linearly along a guide rail by a crank slider mechanism. The first slider drives the second slider to move along the guide rail through a gear transmission mechanism. The first slider and the second slider keep moving toward each other. The PET blue film on the end surface of the square aluminum shell battery is repeatedly rolled by a rubber roller that can rotate on the first slider and the second slider to achieve the effect of completely flattening the PET blue film and ensure the insulation effect. Since the rolling is performed by two rubber rollers moving toward each other, the PET blue film on both sides of the two poles at the top of the square aluminum shell battery can be rolled at the same time, and the two rubber rollers can also be moved between the two poles to roll the PET blue film between the two poles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the structure of the top side film coating device of the square aluminum shell battery. DETAILED DESCRIPTION

[0015] The utility model is described in detail below in conjunction with the accompanying drawings.

[0016] As attached Figure 1 As shown,

[0017] Specific embodiment: A film coating device for the top side of a square aluminum shell battery, comprising a bottom plate 8, a linear guide rail 10 is fixed on the bottom plate 8, a first slider 4 and a second slider 11 are slidably connected to the guide rail 10, a U-shaped block 13 is fixed on the first slider 4 and the second slider 11, and a rubber roller 12 for rolling and flattening the PET blue film on the side of the square aluminum shell battery is rotatably connected between the two ends of the two U-shaped blocks 13, and the rubber roller 12 is made of polypropylene elastic material, the first slider 4 and the second slider 11 are connected by a gear transmission mechanism, the first slider 4 is connected to a linear propulsion mechanism, the gear transmission mechanism comprises a large rack 5 fixedly connected to the first slider 4, the large rack 5 is slidably connected to the guide block 6, the large rack 5 meshes with the gear 7, the gear 7 meshes with the small rack 9, the gear 7 is rotatably connected to the bottom plate 8, the large rack 5 and the small rack 9 are arranged parallel to the gear 7, the large rack 5, the small rack 9 and the guide rail 10 are arranged parallel, and the small rack 9 is fixedly connected to the second slider 11.

[0018] The linear propulsion mechanism is a crank slider mechanism, specifically including a motor 1, a crank 2 and a connecting rod 3. The motor 1 is fixed to a base plate 8 by bolts, the movable end of the motor 1 is fixedly connected to one end of the crank 2, the other end of the crank 2 is hinged to the connecting rod 3, and the end of the connecting rod 3 away from the crank 2 is hinged to the first slider 4.

[0019] The U-shaped block 13 is fixed to the front end of the first slider 4 or the second slider 11 through an L-shaped connecting piece 14, and a triangular reinforcing plate is fixed at the corner of the connecting piece 14. In actual production, in order to ensure the stability of the rubber roller 12, the rigidity of the connecting piece 14 can be appropriately increased, and a steel part can be used and appropriately thickened.

[0020] When the top side coating device of the square aluminum shell battery of the utility model is working, the motor 1 drives the crank 2 to rotate, and the crank 2 pushes the first slider 4 to move through the hinged connecting rod 3, and the first slider 4 drives the large rack 5 to make a linear motion, and the large rack 5 drives the small rack 9 through the meshing gear 7. Since the large rack 5 and the small rack 9 are arranged parallel to the gear 7, the large rack 5 and the small rack 9 move in opposite directions, thereby keeping the first slider 4 and the second slider 11 moving towards each other, and then the two rubber rollers 12 move towards each other, and the rubber rollers 12 flatten the PET blue film on both sides of the two poles of the aluminum shell battery by rolling the direction, and the two rubber rollers 12 can also be adjusted to between the two poles to roll the middle PET blue film to flatten it.

[0021] Although the present invention has been disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection defined by the claims of this application.

Claims

1. A top side coating device for a square aluminum shell battery, characterized in that: It includes a base plate, a linear guide rail is fixed on the base plate, a first slider and a second slider are slidably connected to the guide rail, a U-shaped block is fixed to the first slider and the second slider, a rubber roller for rolling and flattening the PET blue film on the side of the square aluminum shell battery is rotatably connected between the two ends of the two U-shaped blocks, the first slider and the second slider are connected by a gear transmission mechanism, the first slider is connected to a linear propulsion mechanism, the gear transmission mechanism includes a large rack fixedly connected to the first slider, the large rack is slidably connected to the guide block, the large rack meshes with the gear, the gear meshes with the small rack, the gear is rotatably connected to the base plate, the large rack and the small rack are arranged in parallel relative to the gear, the large rack, the small rack and the guide rail are arranged in parallel, and the small rack is fixedly connected to the second slider.

2. A square aluminum shell battery top side coating device according to claim 1, characterized in that: The linear propulsion mechanism is a crank slider mechanism, including a motor, a crank and a connecting rod. The motor is fixed on the base plate, the movable end of the motor is fixedly connected to one end of the crank, the other end of the crank is hinged to the connecting rod, and the end of the connecting rod away from the crank is hinged to the first slider.

3. A square aluminum shell battery top side coating device according to claim 1 or 2, characterized in that: The U-shaped block is fixed to the front end of the first slider or the second slider through an L-shaped connecting piece, and a triangular reinforcing plate is fixed at the corner of the connecting piece.

4. A square aluminum shell battery top side coating device according to claim 2, characterized in that: The motor is fixedly connected to the base plate via bolts.

5. A square aluminum shell battery top side coating device according to claim 4, characterized in that: The rubber roller is made of polypropylene elastic material.

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