Battery film coating device

Abstract

The utility model discloses a battery film coating device which comprises a bracket, the unwinding roller is arranged on the support, a blue film is borne on the unwinding roller, and the unwinding roller is further connected with a first driving part; the winding assembly comprises a conduction roller arranged on one side of the unwinding roller, a winding roller arranged below the conduction roller and a second driving part used for driving the winding roller to rotate, and a limiting part is arranged on the conduction roller; the correction structure comprises a correction roller arranged on the side, away from the unwinding roller, of the conduction roller, a sensor and a third driving part used for correcting the left-right position of the correction roller; the attaching structure is used for clamping and driving the battery to rotate for film attaching; the mounting height of the transmission roller is larger than that of the unwinding roller and that of the correcting roller, and the blue film bypasses the attaching mechanism through the upper ends of the transmission roller and the correcting roller. According to the battery film coating device, the release paper can be rolled, meanwhile, the film pasting precision is prevented from being influenced by the rolling of the release paper, the film coating of the battery can be quickly completed, and the film coating qualification rate of the battery can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery film coating device. Background Art

[0002] The insulating film is generally called a blue film. The blue film insulates the two adjacent batteries in the battery pack from each other and reduces the occurrence of surface scratches during battery transfer. One surface of the blue film is an adhesive surface and the other is a non-adhesive surface. In the production of lithium batteries, by attaching the blue film to the battery to wrap the entire lithium battery cell, the battery cell can be better protected during transportation and circulation to achieve insulation, dustproof, waterproof and other battery protection effects. In the prior art, the battery is mainly coated by artificial coating. This coating method is inefficient and easily causes film misalignment, resulting in rework affecting production efficiency or short circuits in subsequent battery assembly processes. In addition, when coating, the release paper on the blue film needs to be separated from the blue film, and then the blue film is attached to the battery. This will generate a large amount of waste release paper at the production site, and the scattered release paper will interfere with the film coating and affect the efficiency of the film coating.

[0003] In view of this, it is necessary to design a battery packaging device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a battery film coating device which can realize the winding of waste release paper, avoid the winding of release paper affecting the film coating accuracy, quickly complete the battery coating and effectively improve the battery coating qualification rate.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A battery coating device, comprising:

[0007] Bracket;

[0008] An unwinding roller is arranged on the bracket, the unwinding roller carries a blue film, and the unwinding roller is also connected to a first driving member for driving the unwinding roller to rotate;

[0009] The winding assembly comprises a conducting roller arranged on one side of the unwinding roller, a winding roller arranged below the conducting roller, and a second driving member for driving the winding roller to rotate, wherein a limiting member is arranged on the conducting roller;

[0010] The deviation correction structure comprises a correction roller arranged on the side of the conductive roller away from the unwinding roller, a sensor for detecting the position of the blue film from the conductive roller to the correction roller, and a third driving member for correcting the position of the correction roller;

[0011] The attachment structure is used to clamp and drive the battery to rotate for film attachment;

[0012] The installation height of the conductive roller is greater than the installation heights of the unwinding roller and the correction roller, and the blue film is passed around the upper ends of the conductive roller and the correction roller to the attachment mechanism.

[0013] As a further improvement of the present invention, the winding roller is arranged directly below the conducting roller.

[0014] As a further improvement of the present invention, the limiting member includes two limiting blocks spaced apart on the conductive roller, and a blue film limiting area is formed between the two limiting blocks.

[0015] As a further improvement of the present invention, the bracket includes two vertical support plates placed in parallel.

[0016] As a further improvement of the present invention, the correction roller is installed on two vertical support plates and can move in a direction perpendicular to the vertical support plates.

[0017] As a further improvement of the present invention, the sensor is a photoelectric sensor, and the photoelectric sensor is arranged between the conductive roller and the correction roller through a support member.

[0018] As a further improvement of the present invention, the third driving member is a horizontal telescopic cylinder arranged on the vertical support plate through a connecting member.

[0019] As a further improvement of the present invention, the third driving member is also provided with a control system for sending instructions for adjusting the position of the correction roller to the horizontal telescopic cylinder according to the detection result of the sensor.

[0020] As a further improvement of the present invention, the attachment structure includes two clamping components arranged on the side of the correction roller away from the conductive roller for clamping the two ends of the battery, a horizontal telescopic component for controlling the horizontal distance between the two clamping components, and a fourth driving component for controlling the rotation of the two clamping components.

[0021] As a further improvement of the utility model, the attachment structure also includes a vertical plate and a flattening roller slidably connected to the vertical plate for improving the fit between the blue film and the battery; the two clamping assemblies are respectively installed on the two vertical plates through horizontal telescopic parts.

[0022] The beneficial effects of the utility model are:

[0023] 1. The utility model arranges a winding roller just below the conducting roller, so that the conducting roller can be used as a support point for separating the blue film from the release paper. The release paper is collected while being separated from the blue film by the rotation of the winding roller. In addition, a limit block is arranged on the conducting roller, so that the blue film can be prevented from moving along the axial direction of the conducting roller when the winding roller drives the release paper to separate, thereby preventing the subsequent film laminating process from being affected.

[0024] 2. The utility model sets a correction roller between the conduction roller and the battery, and drives the correction roller to move in a direction perpendicular to the vertical support plate through a third driving member. When the sensor detects that the position of the blue film deviates during the transmission process, the correction roller is controlled to move, thereby ensuring that the position of the blue film remains relatively stable during the transmission process, thereby avoiding the axial movement of the blue film along the conduction roller caused by the winding process, which affects the coating accuracy of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the battery coating device of the present utility model.

[0026] Figure 2 It is a partial structural schematic diagram of the battery coating device.

[0027] Figure 3 It is a schematic diagram of the blue film conduction and release paper winding.

[0028] Figure 4 It is a partial side view schematic diagram of the correction structure.

[0029] Figure 5 It is a partial side view schematic diagram of the attachment structure.

[0030] Reference numerals

[0031] 10. Vertical support plate; 20. Unwinding roller; 31. Conducting roller; 311. Limiting block; 32. Winding roller; 41. Correction roller; 42. Third driving member; 43. Connecting member; 44. Support member; 45. Sensor; 51. Support frame; 52. Vertical plate; 53. Fourth driving member; 54. Horizontal telescopic member; 55. Clamp; 56. Rubber block; 57. Flattening roller; 61. Blue film; 62. Release paper; 70. Battery. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0034] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0035] See also Figure 1-Figure 4 As shown, the utility model provides a battery film device, comprising:

[0036] Bracket;

[0037] The unwinding roller 20 is arranged on the bracket, the unwinding roller 20 carries the blue film 61, and the unwinding roller 20 is also connected to a first driving member for driving the unwinding roller 20 to rotate;

[0038] The winding assembly includes a conductive roller 31 disposed on one side of the unwinding roller 20, a winding roller 32 disposed below the conductive roller 31, and a second driving member for driving the winding roller 32 to rotate, and a limiting member is disposed on the conductive roller 31;

[0039] The correction structure includes a correction roller 41 disposed on the side of the conductive roller 31 away from the unwinding roller 20, a sensor 45 for detecting the position of the blue film 61 from the conductive roller 31 to the correction roller 41, and a third driving member 42 for correcting the position of the correction roller 41;

[0040] The attachment structure is used to clamp and drive the battery 70 to rotate for film attachment;

[0041] The installation height of the conductive roller 31 is greater than the installation heights of the unwinding roller 20 and the correction roller 41 , and the blue film 61 passes through the upper ends of the conductive roller 31 and the correction roller 41 and is passed around to the attachment mechanism.

[0042] Specifically, the bracket includes two parallel vertical support plates 10; the unwinding roller 20, the conduction roller 31 and the winding roller 32 are respectively connected to the two vertical support plates 10 at both ends, wherein the unwinding roller 20 passes through the vertical support plate 10 to be connected to the first driving member, and the winding roller 32 passes through the vertical support plate 10 to be connected to the second driving member. In this embodiment, the first driving member is a first motor, and the second driving member is a second motor.

[0043] Specifically, Figure 2 and Figure 3As shown, the winding roller 32 is arranged directly below the conductive roller 31, so that the conductive roller 31 serves as a supporting point. During the conveying process of the blue film 61, when the second driving member synchronously drives the winding roller 32 to rotate, the blue film 61 and the release paper 62 are separated at the tangent surface between the blue film 61 and the conductive roller 31, wherein the release paper 62 is collected by the winding roller 32, and the blue film 61 without the release paper 62 continues to be transported to the upper end of the correction roller 41 along the conveying direction.

[0044] Specifically, the limiting member includes two limiting blocks 311 spaced apart on the conductive roller 31, and a limiting area for the blue film 61 is formed between the two limiting blocks 311, so that the blue film 61 always maintains a relatively stable state with the conductive roller 31 during the transmission of the blue film 61, thereby preventing the blue film 61 from separating from the release paper 62 and causing the blue film 61 to move axially along the conductive roller 31 and affect the subsequent film laminating process.

[0045] Specifically, corresponding through holes are provided on the two vertical support plates 10, and the correction roller 41 is passed through the through holes on the two vertical support plates 10 and can move in a direction perpendicular to the vertical support plates 10. In this embodiment, balls are provided at the through holes to facilitate the third driving member 42 to control the movement of the correction roller 41 relative to the vertical support plates 10.

[0046] Specifically, Figure 4 As shown, the third driving member 42 is a horizontal telescopic cylinder arranged on the vertical support plate 10 through a connecting member 43. The third driving member 42 is also provided with a control system for sending instructions for adjusting the position of the correction roller 41 to the horizontal telescopic cylinder according to the detection result of the sensor 45; the correction roller 41 passes through the vertical support plate 10 and is connected to the horizontal telescopic cylinder.

[0047] Specifically, the sensor 45 is a photoelectric sensor, which is disposed between the conductive roller 31 and the correction roller 41 through a support member 44. The photoelectric sensor is an infrared sensor arrangement similar to the deflection corrector in the prior art, and will not be described in detail here.

[0048] Specifically, Figure 5As shown, the attachment structure is arranged on the side of the correction roller 41 away from the conductive roller 31, including a support frame 51, two vertical plates 52 arranged at intervals on the support frame 51, two clamping assemblies respectively installed on the two vertical plates 52 through horizontal telescopic members 54, and a fourth driving member 53 for controlling the rotation of the two clamping assemblies; the vertical plate 52 is also provided with a flattening roller 57 for improving the degree of adhesion between the blue film 61 and the battery 70, the flattening roller 57 is connected to the vertical plate 52 in a sliding manner in the vertical direction, and the flattening roller 57 is located above the clamping assembly. In this embodiment, the clamping assembly is a clamping plate 55, and a rubber block 56 is also arranged on the side of the clamping plate 55 away from the horizontal telescopic member 54; of the two horizontal telescopic members 54, one end of one horizontal telescopic member 54 is connected to the clamping plate 55, and the other end is connected to the fourth driving member 53, and the other end of the other horizontal telescopic member is connected to the clamping plate 55, and the other end is connected to the vertical plate 52 through a bearing, so that the fourth driving member 53 drives the horizontal telescopic member 54 to rotate and drives the clamping plate 55 to rotate.

[0049] Specifically, in the present embodiment, a slide groove is provided on the vertical plate 52, and both ends of the flattening roller 57 are slidably connected to the slide groove through sliders, so that when the battery 70 is a square cylindrical battery, the battery 70 rotates to cause the flattening roller 57 to move up and down. During the rotation of the battery 70, the flattening roller 57 always maintains a good fit with the battery 70, thereby improving the fit between the blue film 61 and the battery 70.

[0050] The working principle of the battery coating device of the utility model is described below:

[0051] During operation, the battery 70 is placed between the two vertical plates 52, and the two clamping plates 55 are controlled to approach each other to clamp the battery 70 through the horizontal telescopic member 54; the blue film 61 is passed through the upper ends of the conductive roller 31 and the correction roller 41 to the attachment structure position and connected to the battery 70, and the first driving member, the second driving member and the fourth driving member 53 are synchronously driven. Under the action of the second driving member, the winding roller 32 rotates to separate the release paper 62 from the blue film 61, and the separated release paper 62 is collected by the winding roller 32, and the separated blue film 61 continues to move toward the correction roller 41, and the blue film 61 is connected to the battery 70. Driven by the four-drive member 53, the clamping plate 55 drives the battery 70 to rotate, thereby adhering the blue film 61 to the surface of the battery 70; during the film pasting process of the battery 70, the flattening roller 57 is attached to the surface of the battery 70 to flatten the blue film 61; when the sensor 45 detects that the position of the blue film 61 from the conduction roller 31 to the correction roller 41 is offset during the film pasting process, the correction roller 41 information is sent to the control system of the horizontal telescopic cylinder, and the horizontal telescopic cylinder drives the correction roller 41 to move in a direction perpendicular to the vertical support plate 10 to correct the position of the blue film 61.

[0052] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A battery coating device, characterized in that: include: Bracket; An unwinding roller is arranged on the bracket, the unwinding roller carries a blue film, and the unwinding roller is also connected to a first driving member for driving the unwinding roller to rotate; The winding assembly comprises a conducting roller arranged on one side of the unwinding roller, a winding roller arranged below the conducting roller, and a second driving member for driving the winding roller to rotate, wherein a limiting member is arranged on the conducting roller; The deviation correction structure comprises a correction roller arranged on the side of the conductive roller away from the unwinding roller, a sensor for detecting the position of the blue film from the conductive roller to the correction roller, and a third driving member for correcting the position of the correction roller; The attachment structure is used to clamp and drive the battery to rotate for film attachment; The installation height of the conductive roller is greater than the installation heights of the unwinding roller and the correction roller, and the blue film is passed around the upper ends of the conductive roller and the correction roller to the attachment mechanism.

2. The battery encapsulation device according to claim 1, characterized in that: The winding roller is arranged directly below the conducting roller.

3. The battery film device according to claim 2, characterized in that: The limiting member comprises two limiting blocks which are arranged on the conductive roller at an interval, and a blue film limiting area is formed between the two limiting blocks.

4. The battery film device according to claim 1, characterized in that: The support comprises two vertical support plates placed in parallel.

5. The battery encapsulation device according to claim 4, characterized in that: The correction roller is arranged on two vertical support plates and can move in a direction perpendicular to the vertical support plates.

6. The battery encapsulation device according to claim 5, characterized in that: The sensor is a photoelectric sensor, and the photoelectric sensor is disposed between the conductive roller and the correction roller through a support member.

7. The battery film device according to claim 6, characterized in that: The third driving member is a horizontal telescopic cylinder arranged on the vertical supporting plate through a connecting member.

8. The battery film device according to claim 7, characterized in that: The third driving member is also provided with a control system for sending instructions for adjusting the position of the correction roller to the horizontal telescopic cylinder according to the detection result of the sensor.

9. The battery film device according to claim 1, characterized in that: The attachment structure includes two clamping assemblies arranged on the side of the correction roller away from the conductive roller for clamping both ends of the battery, a horizontal telescopic member for controlling the horizontal distance between the two clamping assemblies, and a fourth driving member for controlling the rotation of the two clamping assemblies.

10. The battery encapsulation device according to claim 9, characterized in that: The attachment structure also includes a vertical plate and a flattening roller slidably connected to the vertical plate in a vertical direction and used to improve the degree of adhesion between the blue film and the battery; the two clamping assemblies are respectively installed on the two vertical plates through horizontal telescopic parts.

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