Guide plate for lithium battery cell winding equipment

Abstract

The utility model discloses a guide plate for lithium battery cell winding equipment, which relates to the technical field of lithium battery winding equipment and comprises a base plate, two sides of the base plate are movably connected with fixed plates, and the inner side walls of the fixed plates are movably connected with movable plates which are positioned at the top of the base plate and slide with the base plate. Damping telescopic rods fixed to the side wall of the fixed plate are installed in the two sides of the movable plate. According to the utility model, the damping telescopic rods are arranged in the two groups of moving plates, so that the two groups of moving plates can be relatively close to each other, the channel can be always positioned at the central position, and the condition that the winding machine deviates to one side when winding a pole piece can be avoided; and meanwhile, the branch pipe is arranged to be matched with the telescopic pipe, the first air draft groove and the second air draft groove, so that the effect of cleaning dust on the surface of the pole piece can be achieved, granular dust is prevented from being directly rolled into the battery cell together with the pole piece, and the service life of the battery can be indirectly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery winding equipment, in particular to a guide plate for a lithium battery cell winding device. Background Technique

[0002] The lithium battery winding machine is an important part of lithium battery production equipment, which has a great impact on the quality and life of the battery. The design of the lithium battery winding machine is an important factor affecting the production quality of the battery.

[0003] A new type of guide plate for a winding machine disclosed in the existing patent (authorized announcement number: CN 206711987U) is slidably matched with a substrate through linear bearings. The positioning cylinder includes a cylinder body and a cylinder shaft, and the axis of the cylinder shaft is parallel to the axis of the fixed shaft. A moving baffle is arranged on the substrate, and a positioning hole is opened on the moving baffle, so that the moving baffle can move towards the direction of the fixed baffle.

[0004] However, the above technical solution still has certain defects. When the position of the moving baffle changes, the channel formed by it and the fixed baffle will deviate to one side, which will cause the winding machine to wind the pole piece to deviate to one side. Similarly, during the movement of the pole piece, it will contact with particulate dust in the air. If it is directly wound into the battery cell with the pole piece, it will cause defects such as uneven appearance, self-discharge, and short circuit on the surface of the battery cell. Therefore, a guide plate for a lithium battery cell winding device is proposed. Content of the Utility Model

[0005] Based on this, the purpose of the utility model is to provide a guide plate for a lithium battery cell winding device to solve the technical problems mentioned in the above background.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A guide plate for a lithium battery cell winding device, including a substrate, both sides of the substrate are movably connected with fixing plates, the inner side walls of the fixing plates are movably connected with a moving plate located at the top of the substrate and sliding with it. Damping telescopic rods fixed to the side walls of the fixing plates are installed inside both sides of the moving plate. A plurality of groups of second air extraction grooves are opened above the substrate on the inner side wall of the moving plate. An air strip is fixed at the end of the second air extraction groove inside the moving plate. A branch pipe is fixedly assembled at the center position of the bottom of the substrate. Two ends of the branch pipe extend into the inside of the moving plate. A telescopic pipe is fixedly connected to the end of the branch pipe inside the moving plate, and the telescopic pipe is communicated with the second air extraction groove through the air strip. A first air extraction groove is opened at the center position of the top of the substrate. A cavity is opened at the position where the inside of the substrate is communicated with the first air extraction groove. One end of the branch pipe is communicated with the bottom of the cavity.

[0007] As a preferred technical solution of the guide plate for the lithium battery cell winding device of the present utility model, a blind hole is provided on one side of the moving plate close to the fixed plate, and the other end of the damping telescopic rod is fixed to the blind hole.

[0008] As a preferred technical solution of the guide plate for the lithium battery cell winding device of the present utility model, the second air extraction groove is obliquely provided inside the moving plate, and a placement groove matching the telescopic tube and the air strip is provided inside the moving plate.

[0009] As a preferred technical solution of the guide plate for the lithium battery cell winding device of the present utility model, a fixed shaft is assembled at the bottom of the moving plate, and an adjustment cylinder is assembled at the bottom of the substrate far from the fixed shaft.

[0010] As a preferred technical solution of the guide plate for the lithium battery cell winding device of the present utility model, the fixed plate and the substrate are fixed by bolts.

[0011] As a preferred technical solution of the guide plate for the lithium battery cell winding device of the present utility model, handle grooves are provided at the tops of the two moving plates.

[0012] As a preferred technical solution of the guide plate for the lithium battery cell winding device of the present utility model, the number of the first air extraction grooves is multiple groups, and the first air extraction grooves are distributed in a rectangular array on the top of the substrate.

[0013] In summary, the present utility model mainly has the following beneficial effects:

[0014] By arranging damping telescopic rods inside the two moving plates of the present utility model, the two moving plates can be relatively close to each other, so that the channel can always be located at the central position, which can avoid the situation that the winding machine winds the pole piece to one side. At the same time, by arranging the branch pipe to cooperate with the telescopic tube, the first air extraction groove and the second air extraction groove, it can clean the dust on the surface of the pole piece, prevent particulate dust from being directly wound into the battery cell together with the pole piece, and thus can indirectly improve the service life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0016] Figure 2 is a bottom view structure diagram of the present utility model;

[0017] Figure 3 is a front view sectional structure diagram of the present utility model;

[0018] Figure 4 is a top view sectional view of the present utility model;

[0019] Figure 5 is an end sectional structure diagram of the present utility model.

[0020] In the figure: 100, substrate; 101, cavity; 102, first air extraction groove;

[0021] 110, fixing plate; 120, moving plate; 121, blind hole; 122, air strip; 123, second air extraction groove; 124, telescopic tube; 130, fixed shaft; 140, position adjustment cylinder; 150, branch pipe; 160, damping telescopic rod. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0023] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0024] The guide plate for a lithium battery cell winding device, as Figures 1-5 shown, includes a substrate 100. The two sides of the substrate 100 are movably connected with fixing plates 110. The inner side walls of the fixing plates 110 are movably connected with a moving plate 120 located at the top of the substrate 100 and sliding with it. Damping telescopic rods 160 fixed to the side walls of the fixing plates 110 are installed inside both sides of the moving plate 120. A plurality of groups of second air extraction grooves 123 are opened in the inner side wall of the moving plate 120 above the substrate 100. Air strips 122 are fixed at the ends of the second air extraction grooves 123 inside the moving plate 120. A branch pipe 150 is fixedly assembled at the central position of the bottom of the substrate 100. Two ends of the branch pipe 150 extend into the inside of the moving plate 120. A telescopic tube 124 is fixedly connected to the end of the branch pipe 150 inside the moving plate 120. And the telescopic tube 124 is connected to the second air extraction grooves 123 through the air strips 122. A first air extraction groove 102 is opened at the central position of the top of the substrate 100. A cavity 101 is opened at the position where the inside of the substrate 100 is connected to the first air extraction groove 102. One end of the branch pipe 150 is connected to the bottom of the cavity 101.

[0025] Blind holes 121 are opened on one side of the moving plate 120 close to the fixing plate 110. The other ends of the damping telescopic rods 160 are fixed to the blind holes 121.

[0026] The second air extraction grooves 123 are opened in an inclined shape inside the moving plate 120. Placement grooves matching the telescopic tube 124 and the air strips 122 are opened inside the moving plate 120.

[0027] Handle grooves are opened on the tops of both groups of moving plates 120.

[0028] The number of the first air extraction grooves 102 is multiple groups, and the first air extraction grooves 102 are distributed in a rectangular array on the top of the substrate 100.

[0029] If it is necessary to adjust the position of the channel between the two moving plates 120, one can directly reach out to adjust the handle groove and pull the two moving plates 120 to move relatively. Then the damping telescopic rod 160 will elongate accordingly to restrain the moved moving plates 120 to prevent them from deviating and affecting the winding of the pole pieces. In this way, the channel can be located at the central position, and the situation that the pole pieces are wound to one side when the winding machine winds the pole pieces can be avoided. Thus, the winding efficiency of the pole pieces can be improved. When the substrate 100 works to wind the pole pieces, the air extraction device connected to the branch pipe 150 can be started. First, the dust at the bottom of the pole pieces on the top of the substrate 100 can be extracted through the cavity 101 and the first air extraction grooves 102. At the same time, both ends of the branch pipe 150 are connected and extended into the interior of the moving plates 120, and the dust on the surface of the pole pieces can be extracted through the telescopic pipe 124 and the second air extraction grooves 123. The telescopic pipe 124 can adapt to the adjustment of the positions of the two moving plates 120 and perform telescopic movement.

[0030] Please refer specifically to Figure 2 , a fixed shaft 130 is assembled at the bottom of the moving plate 120, and an adjustment cylinder 140 is assembled at the bottom of the substrate 100 away from the fixed shaft 130.

[0031] The substrate 100 is installed on the winding machine through the fixed shaft 130 and the adjustment cylinder 140, and the position of the substrate 100 on the winding machine can be adjusted through the adjustment cylinder 140.

[0032] Please refer specifically to Figure 1 , the fixing plate 110 and the substrate 100 are fixed by bolts.

[0033] This can facilitate the quick disassembly and assembly of the fixing plate 110.

[0034] When in use, to adjust the position of the channel between the two sets of moving plates 120, one can directly reach out to adjust the handle groove and pull the two sets of moving plates 120 to move relative to each other. The damping telescopic rod 160 will elongate accordingly to constrain the moving plate 120 after the position change, preventing it from deviating and affecting the winding of the pole piece. In this way, the channel can be located at the central position, avoiding the situation of the pole piece winding to one side when the winding machine winds the pole piece, thus improving the winding efficiency of the pole piece. When the substrate 100 works to wind the pole piece, the air extraction device connected to the branch pipe 150 from the outside can be started. First, the dust at the bottom of the pole piece on the top of the substrate 100 can be extracted through the cavity 101 and the first air extraction groove 102. At the same time, both ends of the branch pipe 150 are connected and extended into the interior of the moving plate 120, and the dust on the surface of the pole piece can be extracted through the telescopic pipe 124 and the second air extraction groove 123. The telescopic pipe 124 is provided so that even if the positions of the two sets of moving plates 120 are adjusted, the telescopic pipe 124 can adapt to the adjustment and stretch accordingly. In this way, the practicability of the device can be further improved, and the service life of the battery can be indirectly increased. The parts not involved in this device are the same as the prior art or can be implemented by using the prior art.

[0035] Although the embodiments of the present invention have been shown and described, this specific embodiment is only an interpretation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. Guide plate for lithium battery cell winding equipment, including a substrate (100), characterized in that: Both sides of the substrate (100) are movably connected with fixing plates (110). The inner sidewalls of the fixing plates (110) are movably connected with a moving plate (120) located at the top of the substrate (100) and sliding thereon. Inside both sides of the moving plate (120), there are damping telescopic rods (160) fixed to the sidewalls of the fixing plates (110). Inside the inner sidewall of the moving plate (120) above the substrate (100), there are provided several groups of second air extraction grooves (123). At the end of the second air extraction groove (123) inside the moving plate (120), there is an air strip (122) fixed. At the central position of the bottom of the substrate (100), a branch pipe (150) is fixedly assembled. Two ends of the branch pipe (150) extend into the inside of the moving plate (120). At the end of the branch pipe (150) inside the moving plate (120), a telescopic pipe (124) is fixedly connected, and the telescopic pipe (124) is connected to the second air extraction groove (123) through the air strip (122). At the central position of the top of the substrate (100), a first air extraction groove (102) is provided. Inside the substrate (100) at the position where it is connected to the first air extraction groove (102), there is a cavity (101). One end of the branch pipe (150) is connected to the bottom of the cavity (101).

2. The guiding plate for the winding device of the lithium battery cell according to claim 1, characterized in that: On one side of the moving plate (120) close to the fixing plate (110), there is a blind hole (121), and the other end of the damping telescopic rod (160) is fixed to the blind hole (121).

3. The guide plate for the lithium battery cell winding equipment according to claim 1, characterized in that: The second air extraction groove (123) is provided in an inclined shape inside the moving plate (120). Inside the moving plate (120), there is a placement groove matching the telescopic pipe (124) and the air strip (122).

4. The guiding plate for the lithium battery cell winding equipment according to claim 1, wherein: At the bottom of the moving plate (120), a fixed shaft (130) is assembled. At the bottom of the substrate (100) far from the fixed shaft (130), an adjustment cylinder (140) is assembled.

5. The guide plate for the lithium battery cell winding equipment according to claim 1, characterized in that: The fixing plate (110) and the substrate (100) are fixed by bolts.

6. The guide plate for the winding device of the lithium battery cell according to claim 1, wherein: On the tops of both groups of the moving plates (120), there are handle grooves.

7. The guide plate for the lithium battery cell winding equipment according to claim 1, characterized in that: The number of the first air extraction grooves (102) is multiple groups, and the first air extraction grooves (102) are distributed in a rectangular array on the top of the substrate (100).

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