Gluing device for lithium battery production

By designing a lithium battery production adhesive applicator with a rotating adjustment sleeve and a limiting rod structure, the problem of existing devices being unable to adjust the thickness of the adhesive was solved, enabling precise adhesive application to the casing and electrodes, thus improving the battery's sealing performance and lifespan.

CN223571151UActive Publication Date: 2025-11-21NANJING TONGNING INSTITUTE OF NEW MATERIALS
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Patent Information

Application Number
CN202423004609.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-21
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Existing lithium battery production adhesive application equipment cannot adjust the thickness of the adhesive, which makes it impossible to apply adhesive to the battery casing or electrodes separately, resulting in limitations in the adhesive application range.

Method used

A glue application device for lithium battery production was designed. By rotating the adjusting sleeve and the limiting rod structure, the connection mode of the circular hole of the glue application tube can be adjusted to achieve flexible control of the glue amount and adapt to different needs of the shell or electrode.

Benefits of technology

It enables precise application of adhesive to the lithium battery casing and electrodes, enhancing the flexibility and adaptability of the adhesive application process, improving the battery's sealing and waterproof performance, and extending battery life.

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Abstract

The utility model discloses a lithium battery production gluing device which comprises a conveying unit, the conveying unit comprises a workbench and a storage box fixedly connected to one side of the workbench, the top of the storage box is fixedly provided with a water pump, the outer wall of the water pump is fixedly communicated with a hose, the top of the workbench is fixedly provided with an electric sliding rail, and the outer wall of the electric sliding rail is fixedly communicated with the hose. The output end of the electric sliding rail is fixedly connected with a supporting plate, the gluing unit comprises a gluing pipe fixedly connected to the bottom of the supporting plate, the top of the gluing pipe penetrates through the supporting plate and fixedly communicates with the hose, and the bottom end of the gluing pipe is rotationally sleeved with an adjusting sleeve. According to the utility model, by rotating the adjusting sleeve, glue can be injected through the gluing pipe, so that a shell or an electrode of a lithium battery can be glued, and the gluing amount can be switched at any time so as to adapt to the gluing amount of the shell or the electrode.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a gluing device technical field especially relates to a lithium battery production gluing device. BACKGROUND

[0002] Lithium battery is a kind of by lithium metal or lithium alloy as positive / negative electrode material, using non-aqueous electrolyte solution battery, due to the chemical properties of lithium metal is very active, make the processing, preservation, use of lithium metal, the environment requirement is very high, gluing can fix the battery cell in the battery shell, prevent the battery cell from moving or shaking in the battery, avoid the problem such as electrode short circuit caused by battery cell displacement, thereby protect the battery cell from the influence of external force impact and vibration, reduce the risk of breakage, glue solidification can effectively prevent moisture and other liquids from penetrating into the lithium battery, improve the waterproof performance of battery, thereby prolong the battery life and reduce the failure rate.

[0003] When the battery cell is fixed in the battery shell, a large amount of glue liquid needs to be injected into the shell to fill the shell, and a small amount of glue liquid needs to be injected into the electrode of the battery to form a thin sealing layer, the size of the existing glue head is fixed, so the thickness of the glue liquid injected by the glue head cannot be adjusted, and the glue cannot be injected into the battery shell or the electrode respectively, so the glue injection range of the glue injection device is limited, therefore, a lithium battery production gluing device is provided. SUMMARY

[0004] The purpose of this section is to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a lithium battery production gluing device, which is suitable for solving the problem that the thickness of the glue liquid injected by the existing glue head cannot be adjusted, and the glue cannot be injected into the battery shell or the electrode respectively, so that the glue injection range of the glue injection device is limited.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a lithium battery production gluing device, comprising:

[0008] The conveying unit comprises a workbench and a storage box fixedly connected to one side of the workbench, a water pump is fixedly installed on the top of the storage box, a soft tube is fixedly communicated with the outer wall of the water pump, an electric slide rail is fixedly installed on the top of the workbench, and a supporting plate is fixedly connected to the output end of the electric slide rail;

[0009] The glue injection unit comprises a glue injection pipe fixedly connected to the bottom of the supporting plate, the top of the glue injection pipe penetrates through the supporting plate and is fixedly communicated with the soft tube, an adjusting sleeve is rotatably sleeved with the bottom end of the glue injection pipe, a plurality of uniformly distributed round holes are formed in the bottom of the glue injection pipe and the adjusting sleeve, two limiting rods are fixedly connected to the side wall of the glue injection pipe, and a limiting plate is fixedly connected to the side wall of the adjusting sleeve and located between the two limiting rods.

[0010] As a preferred scheme of the glue injection device for lithium battery production, the outer wall of the glue injection pipe is fixedly connected with a fixed plate, the top of the fixed plate slidably penetrates a bolt, and two limiting holes that match the bolt are formed in the top of the limiting plate.

[0011] As a preferred scheme of the glue injection device for lithium battery production, the outer wall of the bolt is fixedly sleeved with a round piece, and the top of the round piece is fixedly connected with a first spring sleeved on the bolt.

[0012] As a preferred scheme of the glue injection device for lithium battery production, the bottom of the adjusting sleeve is fixedly connected with a plurality of horn covers communicated with the round holes, and the bottom of the adjusting sleeve is fixedly connected with a conical cover communicated with the round holes.

[0013] As a preferred scheme of the glue injection device for lithium battery production, the outer wall of the electric slide rail is fixedly connected with a plurality of limiting rings, the soft tube penetrates each limiting ring in sequence, and the outer wall of the soft tube is fixedly sleeved with a counterweight ring.

[0014] As a preferred scheme of the glue injection device for lithium battery production, the top of the workbench is fixedly connected with a plurality of second springs, the top of the plurality of second springs is commonly fixedly connected with a placing plate, and a supporting block is slidably arranged at the bottom of the workbench.

[0015] The glue injection device for lithium battery production has the advantages that the rotation of the adjusting sleeve can make all the round holes of the adjusting sleeve communicated with the round holes of the glue injection pipe, or only the central round hole of the adjusting sleeve communicated with the central round hole of the glue injection pipe, so that the amount of injected glue solution of the glue injection pipe can be adjusted, the glue injection device can be used for glue injection of the shell or the electrode of the lithium battery, and the amount of glue injection can be switched at any time to adapt to the required amount of the shell or the electrode. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the connotation of the present application.

[0017] Fig. 1 A schematic diagram of the overall structure of the lithium battery production glueing device is provided.

[0018] Fig. 2 A schematic diagram of the connection structure of the electric sliding rail and the support plate is provided.

[0019] Fig. 3 An exploded schematic diagram of the connection relationship between the glueing pipe and the adjusting sleeve is provided. DRAWINGS

[0021] 100, conveying unit; 101, workbench; 102, storage box; 103, water pump; 104, hose; 105, electric sliding rail; 106, support plate; 107, limiting ring; 108, counterweight ring; 109, second spring; 110, placing plate; 111, support block; 200, glueing unit; 201, glueing pipe; 202, adjusting sleeve; 203, round hole; 204, limiting rod; 205, limiting plate; 206, fixed plate; 207, bolt; 208, round piece; 209, first spring; 210, horn cover; 211, conical cover. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0024] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0025] Thirdly, the utility model is described in detail in combination with the schematic diagram, in the detailed description of the utility model embodiment, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of the utility model protection here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0026] Embodiment

[0027] Reference Figs. 1-3 For an embodiment of the utility model, a lithium battery production gluing device is provided, which comprises a conveying unit 100 and a gluing unit 200.

[0028] The conveying unit 100 comprises a workbench 101 and a storage box 102 fixedly connected to one side of the workbench 101, a water pump 103 is fixedly installed on the top of the storage box 102, a hose 104 is fixedly communicated with the outer wall of the water pump 103, an electric sliding rail 105 is fixedly installed on the top of the workbench 101, and a supporting plate 106 is fixedly connected to the output end of the electric sliding rail 105.

[0029] The gluing unit 200 comprises a gluing pipe 201 fixedly connected to the bottom of the supporting plate 106, the top of the gluing pipe 201 penetrates through the supporting plate 106 and is fixedly communicated with the hose 104, an adjusting sleeve 202 is rotatably sleeved with the bottom end of the gluing pipe 201, a plurality of uniformly distributed round holes 203 are formed in the bottom of the gluing pipe 201 and the adjusting sleeve 202, two limiting rods 204 are fixedly connected to the side wall of the gluing pipe 201, and a limiting plate 205 is fixedly connected to the side wall of the adjusting sleeve 202 and located between the two limiting plates 205.

[0030] The round holes 203 at the bottom end of the gluing pipe 201 and the round holes 203 of the adjusting sleeve 202 are uniformly distributed, the two limiting rods 204 are used for limiting the position of the limiting plate 205, when the limiting plate 205 and one of the two limiting rods 204 are in contact with each other, the round holes 203 at the bottom end of the gluing pipe 201 and the round holes 203 of the adjusting sleeve 202 are all in communication with each other, at this time, the gluing amount of the gluing pipe 201 reaches the maximum, so as to inject a large amount of glue into the inside of the shell of the lithium battery, when the limiting plate 205 and the other limiting rod 204 are in contact with each other, the round holes 203 at the bottom end of the gluing pipe 201 and the round holes 203 of the adjusting sleeve 202 are staggered with each other, and only the round hole 203 at the center of the gluing pipe 201 and the round hole 203 at the center of the adjusting sleeve 202 are in communication with each other, at this time, the gluing amount of the gluing pipe 201 is the minimum, so that the glue injected by the gluing pipe 201 is in an elongated state, so as to glue the electrode of the lithium battery.

[0031] The limiting rod 204 and the limiting plate 205 facilitate workers to quickly adjust the adjusting sleeve 202 to the corresponding position, so as to adjust the glue injection amount of the glue injection pipe 201 according to the glue amount of the shell and the electrode, the electric slide rail 105 drives the supporting plate 106 to ascend and descend, so as to shorten the distance between the glue injection pipe 201 and the lithium battery shell or the electrode, and facilitate glue injection, the top of the storage box 102 is fixedly connected with a filling pipe for adding glue into the storage box 102, the glue in the storage box 102 is delivered into the hose 104 by the water pump 103, the glue in the hose 104 is delivered into the glue injection pipe 201, and the glue in the glue injection pipe 201 passes through the round hole 203 of the adjusting sleeve 202 and is injected on the lithium battery shell or the electrode, so that the glue injection is completed.

[0032] In addition, the outer wall of the glue injection pipe 201 is fixedly connected with a fixed plate 206, the top of the fixed plate 206 is slidably penetrated by a bolt 207, and the top of the limiting plate 205 is provided with two limiting holes matched with the bolt 207.

[0033] When the adjusting sleeve 202 is rotated to make the limiting plate 205 contact with any one of the limiting rods 204, one of the limiting holes of the limiting plate 205 is located below the bolt 207, the bolt 207 is inserted into the limiting hole of the limiting plate 205, so that the position of the adjusting sleeve 202 is locked to prevent the adjusting sleeve 202 from being deflected during glue injection.

[0034] Specifically, the outer wall of the bolt 207 is fixedly sleeved with a round plate 208, the top of the round plate 208 is fixedly connected with a first spring 209 sleeved on the bolt 207, the bottom of the adjusting sleeve 202 is fixedly connected with a plurality of horn covers 210 communicated with the round hole 203, and the bottom of the adjusting sleeve 202 is fixedly connected with a conical cover 211 communicated with the round hole 203.

[0035] The first spring 209 and the round plate 208 are located at the bottom of the fixed plate 206, the bolt 207 is not separated from the fixed plate 206 by downward extruding the round plate 208 by the first spring 209, the bolt 207 is no longer in contact with the limiting hole of the limiting plate 205 by lifting the bolt 207, then the adjusting sleeve 202 can be rotated, after adjustment, the bolt 207 is inserted into the corresponding limiting hole of the limiting plate 205, and the first spring 209 after being extruded extrudes the round plate 208 downward, so that the bottom end of the bolt 207 is stably inserted into the limiting hole, to further prevent the adjusting sleeve 202 from being deflected;

[0036] When the shell of the lithium battery is glued, the glue liquid can be diffused through the horn cover 210, so as to facilitate the glue liquid to uniformly fill the inside of the shell. The conical cover 211 is arranged in an inverted conical shape. When the glue liquid is only injected from the middle circular hole 203, the conical cover 211 can further shorten the diameter of the glue liquid injection, and make the glue liquid not spread everywhere during injection, so as to accurately glue the electrode of the lithium battery.

[0037] Further, the outer wall of the electric sliding rail 105 is fixedly connected with a plurality of limiting rings 107, and the hose 104 penetrates each limiting ring 107 in sequence. The outer wall of the hose 104 is fixedly sleeved with a counterweight ring 108.

[0038] The limiting ring 107 is used to limit the moving direction of the hose 104, so that the hose 104 will not hang on both sides of the support plate 106. The length of the hose 104 is relatively long, so that the support plate 106 can be freely lifted. The counterweight ring 108 is located at a section of the hose 104 away from the support plate 106. When the support plate 106 is lowered, the hose 104 is pulled to the upper side of the support plate 106, and the counterweight ring 108 rises with the hose 104. When the support plate 106 is lifted, the counterweight ring 108 naturally falls, and the hose 104 pulled by the support plate 106 is pulled to the top of the storage box 102 again. The hose 104 on the top of the support plate 106 is kept in a tight state through the counterweight ring 108.

[0039] Further, the top of the workbench 101 is fixedly connected with a plurality of second springs 109. The top of the plurality of second springs 109 is fixedly connected with a placing plate 110. The bottom of the workbench 101 is slidably provided with a support block 111.

[0040] The placing plate 110 is supported by the support block 111. Then, the shell of the lithium battery is placed on the placing plate 110, and a large amount of glue liquid is injected into the inside of the shell. After the gluing is completed, the support block 111 is pulled out from the placing plate 110. Then, the placing plate 110 can be shaken by the second spring 109, so that the shell of the lithium battery is shaken, so that the glue liquid fills the gaps in the inside of the lithium battery shell, and the inside of the shell is fully filled with the glue liquid.

[0041] During use, first, the support block 111 is slid to the bottom of the placement plate 110 to support the placement plate 110, then the pin 207 is lifted so that the pin 207 is no longer in contact with the limiting hole of the limiting plate 205, then the adjusting sleeve 202 is rotated so that the round hole 203 at the bottom end of the glue injection pipe 201 is in communication with the round hole 203 of the adjusting sleeve 202, when the limiting plate 205 is in contact with one of the limiting rods 204, the pin 207 is loosened and inserted into the corresponding limiting hole of the limiting plate 205 to ensure that the adjusting sleeve 202 cannot be deflected, then the support plate 106 is driven to descend by the electric slide rail 105 to shorten the distance between the glue injection pipe 201 and the lithium battery shell, then the water pump 103 is started to make the glue liquid in the storage tank 102 transported into the glue injection pipe 201 through the hose 104, and the glue liquid in the glue injection pipe 201 passes through the horn cover 210 and the conical cover 211 and is injected into the lithium battery shell to complete the glue injection;

[0042] After the glue injection is completed, the support block 111 is pulled out of the placement plate 110, then the placement plate 110 is shaken to facilitate the glue liquid to fully fill the inside of the shell, when the electrode needs to be injected with glue, the pin 207 is lifted again and the adjusting sleeve 202 is rotated, when the limiting plate 205 is in contact with the other limiting rod 204, the pin 207 is loosened to lock the adjusting sleeve 202, then the glue liquid can only be injected from the conical cover 211, thereby the electrode of the lithium battery can be precisely injected with glue.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A glue-applying device for lithium battery production, characterized in that, include: The conveying unit (100) includes a workbench (101) and a storage box (102) fixedly connected to one side of the workbench (101). A water pump (103) is fixedly installed on the top of the storage box (102), and a hose (104) is fixedly connected to the outer wall of the water pump (103). An electric slide rail (105) is fixedly installed on the top of the workbench (101), and a support plate (106) is fixedly connected to the output end of the electric slide rail (105). The glue applicator (200) includes a glue applicator tube (201) fixedly connected to the bottom of the support plate (106). The top of the glue applicator tube (201) passes through the support plate (106) and is fixedly connected to the hose (104). An adjusting sleeve (202) is rotatably sleeved at the bottom of the glue applicator tube (201). Multiple evenly distributed round holes (203) are opened at the bottom of both the glue applicator tube (201) and the adjusting sleeve (202). Two limiting rods (204) are fixedly connected to the side wall of the glue applicator tube (201). A limiting plate (205) located between two limiting plates (205) is fixedly connected to the side wall of the adjusting sleeve (202).

2. The lithium battery production adhesive applicator according to claim 1, characterized in that: The outer wall of the glue applicator tube (201) is fixedly connected to a fixing plate (206), and a pin (207) slides through the top of the fixing plate (206). The top of the limiting plate (205) has two limiting holes that fit the pin (207).

3. The lithium battery production adhesive applicator according to claim 2, characterized in that: A circular piece (208) is fixedly sleeved on the outer wall of the pin (207), and a first spring (209) sleeved on the pin (207) is fixedly connected to the top of the circular piece (208).

4. The lithium battery production adhesive applicator according to claim 1, characterized in that: The bottom of the adjusting sleeve (202) is fixedly connected to a plurality of horn covers (210) communicating with the round hole (203), and the bottom of the adjusting sleeve (202) is fixedly connected to a conical cover (211) communicating with the round hole (203).

5. The lithium battery production adhesive applicator according to claim 1, characterized in that: The outer wall of the electric slide rail (105) is fixedly connected with multiple limiting rings (107), and the hose (104) passes through each limiting ring (107) in sequence. The outer wall of the hose (104) is fixedly sleeved with a counterweight ring (108).

6. The lithium battery production adhesive applicator according to claim 1, characterized in that: The top of the workbench (101) is fixedly connected to a plurality of second springs (109), and the top of the plurality of second springs (109) is fixedly connected to a placement plate (110). A support block (111) is slidably provided at the bottom of the workbench (101).