Automatic film sleeving mechanism for lithium battery

Abstract

The utility model discloses an automatic lithium battery film sleeving mechanism which comprises a film guide rod and a first driving device, limiting wheels are arranged in front of and behind the film guide rod, the limiting wheels abut against the side wall of the film guide rod, driving wheels are arranged above and below the film guide rod respectively, the first driving device is used for driving the driving wheels to rotate, and the first driving device is used for driving the film guide rod to rotate. A mounting hole is formed in the film guide rod, a set of driven wheels is mounted on each of the upper portion and the lower portion in the mounting hole, each set of driven wheels comprises two driven wheels which are oppositely arranged left and right, the vertical position of the film guide rod can be limited through the driving wheels above and below the film guide rod, and the vertical position of the film guide rod can be limited through the limiting wheels in front of and behind the film guide rod. The front-back position of the film guide rod can be limited, so that when a film material on the film guide rod is driven to move in the extending direction of the film guide rod, the position of a central shaft of the film guide rod can be prevented from deviating, the film material stably moves on the film guide rod, and the film sleeving work of the lithium battery is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery coating technology, and in particular to an automatic lithium battery coating mechanism. Background Technology

[0002] Lithium batteries, especially cylindrical lithium batteries, include a metal casing. To prevent short circuits caused by metal contacts on the battery's metal contacts, a heat-shrink film is typically used to protect the metal casing from scratches or short circuits.

[0003] Chinese Invention Patent Publication No. CN118373035A discloses a guiding mechanism for a battery coating device in paragraph

[0041] . The guiding mechanism includes a guiding rod, driven wheels, a support, and a driving wheel. The guiding rod has mounting holes that penetrate opposite side walls. Driven wheels are rotatably mounted at the mounting holes, with opposite sides of the driven wheels corresponding to opposite sides of the guiding rod. Multiple driven wheels are arranged sequentially along the extension direction of the guiding rod. Multiple driving wheels are mounted on the support and located on opposite sides of the guiding rod. At least one driving wheel is located on one side of the guiding rod, and at least two driving wheels are located on the other side. The driving wheels on opposite sides of the guiding rod are staggered. Each driving wheel engages with one or two driven wheels to drive the film material on the guide rod to move along the extension direction of the guide rod. When the film guiding mechanism of the above-mentioned film covering device guides the film, since the driving wheels are only set on both sides of the guide rod, the central axis position of the guide rod is prone to shift when driving the film material on the guide rod to move along the extension direction of the guide rod. This can cause the film material to be unable to move stably on the guide rod, affecting the film covering work. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an automatic lithium battery coating mechanism. This addresses the technical problem that existing coating devices only have drive wheels on both sides of the guide rod, which means that when the film material on the guide rod moves along the extension direction of the guide rod, the central axis of the guide rod is easily offset, thus preventing the film material from moving stably on the guide rod and affecting the coating operation.

[0005] To achieve the above technical objectives, the present invention provides an automatic lithium battery coating mechanism, comprising a guide rod and a first driving device. Limiting wheels are provided at the front and rear of the guide rod, and the limiting wheels abut against the side wall of the guide rod. Driving wheels are provided above and below the guide rod. The first driving device drives the driving wheels to rotate. An installation hole is provided inside the guide rod, and a set of driven wheels is installed above and below the installation hole. Each set of driven wheels includes two driven wheels arranged opposite each other. A driving wheel is provided between the two driven wheels in the same set to drive the film material on the guide rod to move along the extension direction of the guide rod.

[0006] Furthermore, the head of the guide rod is flat.

[0007] Furthermore, the head of the guide rod is provided with a guide assembly, which includes a guide block and a strip guide groove.

[0008] Furthermore, the tail end of the guide rod is provided with a battery fixing assembly, which includes a placement platform. The top of the placement platform is provided with a groove for placing a lithium battery, and a pressure block is provided above the placement platform. The pressure block is connected to a second driving device for driving the pressure block to move up and down.

[0009] Furthermore, a membrane cutting assembly is provided between the guide rod and the battery fixing assembly. The membrane cutting assembly includes a cutting blade, which is connected to a third drive device for driving the cutting blade to move up and down.

[0010] Furthermore, the limiting wheels at the front and rear of the guide rod are staggered.

[0011] Furthermore, the drive wheels above and below the guide rod are staggered.

[0012] Furthermore, the first drive device includes a first pulley connected to the drive wheel, the first pulley being connected to a second pulley via a belt, and the second pulley being connected to the output shaft of the motor.

[0013] The beneficial effects of this utility model include:

[0014] 1. The upper and lower drive wheels of the guide rod can limit the vertical position of the guide rod, and the front and rear limit wheels of the guide rod can limit the front and rear position of the guide rod. Therefore, when the film material on the guide rod moves along the extension direction of the guide rod, the central axis position of the guide rod can be prevented from shifting, so that the film material moves stably on the guide rod and avoids affecting the lithium battery coating operation.

[0015] 2. By staggering the positioning wheels at the front and rear of the guide rod, the relative positions of the front and rear of the membrane material can be prevented from concave and bending towards the central axis of the guide rod when the membrane material is conveyed on the guide rod, thus preventing the membrane material from getting stuck when conveyed on the guide rod.

[0016] 3. By staggering the drive wheels above and below the guide rod, the relative positions of the upper and lower parts of the membrane material can be prevented from concave and bending towards the central axis of the guide rod when the membrane material is conveyed on the guide rod, thus preventing the membrane material from getting stuck when conveyed on the guide rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the automatic lithium battery coating mechanism according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the automatic lithium battery coating mechanism according to an embodiment of the present invention;

[0019] Figure 3 This is another state diagram of the automatic lithium battery coating mechanism according to an embodiment of the present utility model;

[0020] In the diagram: 1. Guide rod; 11. Mounting hole; 2. Limiting wheel; 3. Drive wheel; 4. First drive device; 41. First pulley; 42. Belt; 43. Second pulley; 44. Motor; 5. Driven wheel; 6. Guide assembly; 61. Guide block; 611. Guide groove; 62. Bolt; 7. Battery fixing assembly; 71. Placement platform; 711. Groove; 72. Pressure block; 73. Second drive device; 8. Membrane cutting assembly; 81. Cutting blade; 82. Third drive device. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] This utility model embodiment provides an automatic coating mechanism for lithium batteries, such as... Figure 1-3 As shown, the device includes a guide rod 1 and a first driving device 4. Limiting wheels 2 are provided at the front and rear of the guide rod 1, and the limiting wheels 2 abut against the side wall of the guide rod 1. Driving wheels 3 are provided above and below the guide rod 1. The first driving device 4 drives the driving wheels 3 to rotate. The guide rod 1 has an internal mounting hole 11. A set of driven wheels 5 are installed above and below the mounting hole 11. Each set of driven wheels 5 includes two driven wheels 5 arranged opposite each other. A driving wheel 3 is provided between the two driven wheels 5 in the same set to drive the film material on the guide rod 1 to move along the extension direction of the guide rod 1.

[0023] The first driving device 4 can drive the drive wheel 3 to rotate, and the drive wheel 3 can drive the film material on the guide rod 1 to move along the extension direction of the guide rod 1. At the same time, the drive wheels 3 above and below the guide rod 1 can limit the vertical position of the guide rod 1, and the limiting wheels 2 in front and behind the guide rod 1 can limit the front and back position of the guide rod 1. Therefore, when driving the film material on the guide rod to move along the extension direction of the guide rod 1, the central axis position of the guide rod 1 can be prevented from shifting, so that the film material moves stably on the guide rod 1 and avoids affecting the lithium battery coating operation.

[0024] Since the initial shape of the membrane material is flat, the head of the guide rod 1 is flat to facilitate the fitting of the membrane material onto the guide rod 1. The membrane material can be fitted onto the guide rod 1 from the head. The head of the guide rod 1 is provided with a guide assembly 6, which includes a guide block 61. The guide block 61 is provided with a strip-shaped guide groove 611. The strip-shaped guide groove 611 can guide and limit the membrane material before it is fitted onto the guide rod 1, preventing the membrane material from curling and affecting its movement on the guide rod 1. At the same time, the guide block 611... One end is fixedly mounted on the frame by bolt 62. When the film material is put on the guide rod 1, the bolt 62 is loosened. After the bolt 62 is loosened, the guide block 61 is rotated to move the guide block 61 away from the head of the guide rod 1. This can prevent the guide block 61 from blocking the head of the guide rod 1 when the film material is put on the guide rod 1, so that the film material can be easily put on the guide rod 1. After the film material is put on the guide rod 1, the guide block 61 is rotated to move the guide block 61 to the head of the guide rod 1 and the bolt 62 is tightened.

[0025] In this embodiment, the tail of the guide rod 1 is provided with a battery fixing assembly 7. The battery fixing assembly 7 includes a placement platform 71. The top of the placement platform 71 is provided with a groove 711 for placing a lithium battery. A pressure block 72 is provided above the placement platform 71. The pressure block 72 is connected to a second driving device 73 for driving the pressure block 72 to move up and down. The second driving device 73 is one of a cylinder, a hydraulic cylinder, or an electric telescopic rod. The pressure block 72 can be driven to move up and down by the second driving device 73 to fix the battery inside the groove 711 or release it from the groove 711. At the same time, a film cutting assembly 8 is provided between the guide rod 1 and the battery fixing assembly 7. The film cutting assembly 8 includes a cutting blade 81. The cutting blade 81 is connected to a third driving device 82 for driving the cutting blade 81 to move up and down. The third driving device 82 is one of a cylinder, a hydraulic cylinder, or an electric telescopic rod. The film material on the guide rod 1 can be output from the tail of the guide rod 1 and put on the lithium battery. After the film material is put on the lithium battery, the cutting blade 81 is driven to move downward by the second driving device 82 to cut the film material.

[0026] It should be noted that the limiting wheels 2 at the front and rear of the guide rod 1 are staggered. There are two limiting wheels 2 at the front of the guide rod 1, located at both ends of the guide rod 1, and two limiting wheels 2 at the rear of the guide rod 1. By staggering the front and rear limiting wheels 2 of the guide rod 1, the relative positions of the front and rear of the membrane material can be prevented from concave and bending towards the central axis of the guide rod 1 during the conveying of the membrane material. This prevents the membrane material from being stuck during the conveying of the guide rod 1. 1. At both ends; the drive wheels 3 above and below the guide rod 1 are staggered. There are two drive wheels 3 above the guide rod 1, which are respectively located at both ends of the guide rod 1. There are also two drive wheels 3 below the guide rod 1, which are respectively located at both ends of the guide rod 1. By staggering the drive wheels 3 above and below the guide rod 1, the relative positions of the upper and lower parts of the membrane material can be prevented from concave and bending towards the central axis of the guide rod 1 when the membrane material is conveyed on the guide rod 1, thereby preventing the membrane material from being stuck when conveyed on the guide rod 1.

[0027] In this embodiment, the first driving device 4 includes a first pulley 41 connected to the drive wheel 3. The first pulley 41 is connected to a second pulley 43 via a belt 42. The second pulley 43 is connected to the output shaft of the motor 44. The motor 44 can drive the second pulley 43 to rotate. The second pulley 43 can drive the first pulley 41 to rotate via the belt 42, thereby driving the drive wheel 3 to rotate. In other embodiments, the motor 44 can be replaced by a hydraulic motor or a pneumatic motor.

[0028] The specific principle is as follows: During the coating process, the lithium battery is placed into the groove 711 at the top of the placement platform 71, and the pressure block 72 is driven down by the second drive device 73 to fix the lithium battery inside the groove 711. The membrane material is manually placed on the guide rod 1. The drive wheel 3 can be driven to rotate by the first drive device 4. The drive wheel 3 can drive the membrane material on the guide rod 1 to move along the extension direction of the guide rod 1. When the membrane material is output from the tail of the guide rod 1, it can be placed on the lithium battery on the placement platform 71. After the membrane material is placed on the lithium battery, the cutting blade 81 is driven down by the third drive device 82 to cut the membrane material, thus completing the lithium battery coating process.

[0029] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An automatic coating mechanism for lithium batteries, characterized in that, The device includes a guide rod (1) and a first driving device (4). The guide rod (1) is provided with limiting wheels (2) at the front and rear. The limiting wheels (2) abut against the side wall of the guide rod (1). The guide rod (1) is provided with driving wheels (3) at the top and bottom. The first driving device (4) is used to drive the driving wheels (3) to rotate. The guide rod (1) is provided with a mounting hole (11). A set of driven wheels (5) is installed at the top and bottom of the mounting hole (11). Each set of driven wheels (5) includes two driven wheels (5) arranged opposite each other. A driving wheel (3) is provided between the two driven wheels (5) in the same set to drive the film material on the guide rod (1) to move along the extension direction of the guide rod (1).

2. The automatic lithium battery coating mechanism according to claim 1, characterized in that, The head of the guide rod (1) is flat.

3. The automatic lithium battery coating mechanism according to claim 1, characterized in that, The guide rod (1) has a guide assembly (6) at its head. The guide assembly (6) includes a guide block (61) and a strip guide groove (611) on the guide block (61).

4. The automatic lithium battery coating mechanism according to claim 1, characterized in that, The tail of the guide rod (1) is provided with a battery fixing assembly (7). The battery fixing assembly (7) includes a placement platform (71). The top of the placement platform (71) is provided with a groove (711) for placing a lithium battery. A pressure block (72) is provided above the placement platform (71). The pressure block (72) is connected to a second driving device (73) for driving the pressure block (72) to move up and down.

5. The automatic lithium battery coating mechanism according to claim 4, characterized in that, A film cutting assembly (8) is provided between the guide rod (1) and the battery fixing assembly (7). The film cutting assembly (8) includes a cutting blade (81), which is connected to a third driving device (82) for driving the cutting blade (81) to move up and down.

6. The automatic lithium battery coating mechanism according to claim 1, characterized in that, The limiting wheels (2) at the front and rear of the guide rod (1) are staggered.

7. The automatic lithium battery coating mechanism according to claim 1, characterized in that, The drive wheels (3) above and below the guide rod (1) are staggered.

8. The automatic lithium battery coating mechanism according to claim 1, characterized in that, The first drive device (4) includes a first pulley (41) connected to the drive wheel (3), the first pulley (41) being connected to a second pulley (43) via a belt (42), and the second pulley (43) being connected to the output shaft of the motor (44).

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