Cylindrical lithium battery metal powder cleaning device and production line thereof

Abstract

The utility model provides a cylindrical lithium battery metal powder cleaning device and a production line thereof. The cylindrical lithium battery metal powder cleaning device comprises a rack, a telescopic driving part and a suction assembly. And the telescopic driving piece is fixedly mounted on the rack. The suction assembly comprises a sleeve and a plurality of elastic abutting pieces. One end of the sleeve is communicated with the negative pressure system, the multiple elastic abutting pieces are arranged on the inner wall of the other end of the sleeve in a surrounding mode so as to jointly define an elastic abutting suction opening, and the sleeve is fixedly installed on a telescopic driving shaft of the telescopic driving piece so as to drive the other end of the sleeve to move towards the cylindrical steel shell. The inner wall of the elastic abutting suction opening abuts against the peripheral wall of the cylindrical steel shell in a sealed mode, then the negative pressure system sucks the multiple elastic abutting pieces through the sleeve, the elastic abutting suction opening generates vacuum degree, and metal powder and dust falling off from the cylindrical steel shell are sucked; and the effect of cleaning and dedusting the interior of the cylindrical steel shell is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylindrical lithium battery production, in particular to a metal powder cleaning device for cylindrical lithium batteries and its production line. Background Art

[0002] In the automated production line of cylindrical lithium batteries, the cylindrical steel shell filled with battery cores needs to undergo multiple processing steps before the sealing and external cleaning of the cylindrical steel shell. These steps include processing steps such as grooving, drying, and liquid injection; during this period, it is necessary to transfer or transport the unsealed cylindrical steel shells to the next processing step, which inevitably leads to problems of transportation vibration, resulting in the shedding of a small amount of metal powder on the battery cores, or the situation where dust enters the interior of the cylindrical steel shell.

[0003] Therefore, the above-mentioned metal powder or dust can easily cause a decline in the safety performance of cylindrical lithium batteries when not treated, and it is difficult to ensure good production quality of cylindrical lithium batteries.

[0004] There is an urgent need for a device or equipment that can clean the shed metal powder and dust before the sealing of the cylindrical steel shell of cylindrical lithium batteries. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a metal powder cleaning device for cylindrical lithium batteries and its production line that can efficiently clean the metal powder and dust shed from the battery cores inside the cylindrical steel shell before the sealing of the cylindrical steel shell of cylindrical lithium batteries.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A metal powder cleaning device for cylindrical lithium batteries, comprising:

[0008] A frame;

[0009] A telescopic driving member, which is fixedly installed on the frame;

[0010] A suction assembly, including a sleeve and a plurality of elastic abutting members; one end of the sleeve is communicated with a negative pressure system, and a plurality of the elastic abutting members are arranged around the inner wall of the other end of the sleeve to jointly form an elastic abutting suction port. The sleeve is fixedly installed on the telescopic driving shaft of the telescopic driving member to drive the other end of the sleeve to move towards the cylindrical steel shell, so that the inner wall of the elastic abutting suction port is hermetically abutted against the outer peripheral wall of the cylindrical steel shell.

[0011] In one embodiment, the telescopic driving member is a cylinder or an electric cylinder.

[0012] In one embodiment, the cylindrical lithium battery metal powder cleaning device further includes a first connecting plate and a second connecting plate. The first connecting plate is fixedly connected to the telescopic driving shaft of the telescopic driving member. One end of the second connecting plate is screwed to the first connecting plate, and a positioning fastening through hole is formed at the other end of the second connecting plate. The sleeve is inserted through the positioning fastening through hole.

[0013] In one embodiment, a countersunk hole, a through hole, and a limiting through hole that are sequentially communicated are formed in the outer peripheral wall of the other end of the sleeve.

[0014] The cylindrical lithium battery metal powder cleaning device further includes an elastic component. The elastic component includes a screw member and an elastic member. The threaded connection end of the screw member sequentially passes through the countersunk hole, the through hole, and the limiting through hole and is threadedly connected to the corresponding elastic abutting member. The elastic member is located in the limiting through hole and sleeved on the threaded connection end of the screw member.

[0015] In one embodiment, a magnet member is embedded in each of the elastic abutting members.

[0016] In one embodiment, the elastic abutting suction port is circular in shape to adapt to the outer peripheral wall contour of the cylindrical steel shell.

[0017] In one embodiment, a guiding inclined surface is formed on the inner wall of one end of each elastic abutting member adjacent to the elastic abutting suction port.

[0018] In one embodiment, the sleeve is an integrally formed plastic structural member.

[0019] In one embodiment, the plurality of elastic abutting members are all integrally formed elastic plastic structural members.

[0020] A cylindrical lithium battery metal powder cleaning production line includes the cylindrical lithium battery metal powder cleaning device according to any one of the above embodiments. The cylindrical lithium battery metal powder cleaning device has a suction component. The cylindrical lithium battery metal powder cleaning production line further includes a transport line for transporting the cylindrical steel shell to directly below the suction component at a fixed distance.

[0021] Compared with the prior art, the present utility model has at least the following advantages:

[0022] First, drive the other end of the sleeve towards the steel shell through the telescopic driving member, so that the inner wall of the elastic abutting suction port is hermetically abutted against the outer peripheral wall of the cylindrical steel shell. Then, the negative pressure system sucks the plurality of elastic abutting members through the sleeve respectively, so that a vacuum degree is generated in the elastic abutting suction port, and the metal powder and dust falling off in the cylindrical steel shell are sucked, so as to achieve the effect of cleaning and dust removal inside the cylindrical steel shell, thereby effectively improving the use safety performance of the cylindrical lithium battery and ensuring the production quality of the cylindrical lithium battery at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a schematic structural diagram of a metal powder cleaning device for a cylindrical lithium battery in an embodiment;

[0025] Figure 2 is Figure 1 a top view of the metal powder cleaning device for the cylindrical lithium battery shown;

[0026] Figure 3 is Figure 2 a sectional view in the A-A cutting direction of the metal powder cleaning device for the cylindrical lithium battery shown;

[0027] Figure 4 is Figure 3 a partial enlarged view of part A of the metal powder cleaning device for the cylindrical lithium battery shown;

[0028] Figure 5 is Figure 1 an exploded schematic view of a part of the metal powder cleaning device for the cylindrical lithium battery shown;

[0029] Figure 6 is Figure 1 an exploded schematic view of the structures of a plurality of elastic abutting members of the metal powder cleaning device for the cylindrical lithium battery shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] The present disclosure provides a cylindrical lithium battery metal powder cleaning device, which includes a frame, a telescopic driving member and a suction assembly. The telescopic driving member is fixedly installed on the frame; the suction assembly includes a sleeve and a plurality of elastic abutting members; one end of the sleeve is communicated with a negative pressure system, and a plurality of the elastic abutting members are arranged around the inner wall of the other end of the sleeve to jointly form an elastic abutting suction port. The sleeve is fixedly installed on the telescopic driving shaft of the telescopic driving member to drive the other end of the sleeve to move towards the cylindrical steel shell, so that the inner wall of the elastic abutting suction port is hermetically abutted against the outer peripheral wall of the cylindrical steel shell.

[0034] Please refer to Figures 1 to 6 , in order to better understand the cylindrical lithium battery metal powder cleaning device 10 of the present application, the following further explanatory description is made on the cylindrical lithium battery metal powder cleaning device 10:

[0035] The cylindrical lithium battery metal powder cleaning device 10 of one embodiment includes a frame 100, a telescopic driving member 200 and a suction assembly 300. The telescopic driving member 200 is fixedly installed on the frame 100; the suction assembly 300 includes a sleeve 310 and a plurality of elastic abutting members 320; one end of the sleeve 310 is communicated with a negative pressure system (not shown in the figure), and a plurality of the elastic abutting members 320 are arranged around the inner wall of the other end of the sleeve 310 to jointly form an elastic abutting suction port 301. The sleeve 310 is fixedly installed on the telescopic driving shaft of the telescopic driving member 200 to drive the other end of the sleeve 310 to move towards the cylindrical steel shell, so that the inner wall of the elastic abutting suction port 301 is hermetically abutted against the outer peripheral wall of the cylindrical steel shell.

[0036] In this embodiment, first, the telescopic driving member 200 drives the other end of the sleeve 310 to move towards the steel shell, so that the inner wall of the elastic abutting suction port 301 is hermetically abutted against the outer peripheral wall of the cylindrical steel shell. Then, a negative pressure system (not shown in the figure) sucks the plurality of elastic abutting members 320 through the sleeve 310 respectively, so that a vacuum degree is generated in the elastic abutting suction port 301, and the metal powder and dust falling off inside the cylindrical steel shell are sucked, so as to achieve the effect of cleaning and dust removal inside the cylindrical steel shell, thereby effectively improving the use safety performance of the cylindrical lithium battery and ensuring the production quality of the cylindrical lithium battery at the same time.

[0037] As Figures 1 to 5 shown, in one embodiment, the telescopic driving member 200 is a cylinder or an electric cylinder. In one embodiment, the cylindrical lithium battery metal powder cleaning device 10 further includes a first connecting plate 400 and a second connecting plate 500. The first connecting plate 400 is fixedly connected to the telescopic driving shaft of the telescopic driving member 200. One end of the second connecting plate 500 is screwed to the first connecting plate 400, and a positioning fastening through hole 501 is formed at the other end of the second connecting plate 500, and the sleeve 310 is inserted through the positioning fastening through hole 501.

[0038] It can be understood that in this embodiment, the telescopic driving member 200 is a cylinder, which is convenient to use and has a relatively fast response rate. At the same time, since the number of sleeves 310 is two, the number of corresponding positioning fastening through holes 501 is also two, so that the plurality of elastic abutting suction ports 301 can be hermetically abutted against the outer peripheral walls of a plurality of cylindrical steel shells at the same time, and further the negative pressure system (not shown in the figure) can suck the metal powder and dust falling off inside a plurality of cylindrical steel shells instantaneously and efficiently, so as to effectively improve the cleaning efficiency of the cylindrical lithium battery metal powder cleaning device 10.

[0039] As Figures 1 to 6 shown, in one embodiment, a countersunk hole 3101, a through hole 3102 and a limiting through hole 3103 which are sequentially communicated are formed on the outer peripheral wall of the other end of the sleeve 310. The cylindrical lithium battery metal powder cleaning device 10 further includes an elastic component 600. The elastic component 600 includes a screw member 610 and an elastic member 620. The threaded connection end of the screw member 610 is sequentially inserted through the countersunk hole 3101, the through hole 3102 and the limiting through hole 3103 and is threadedly connected to the corresponding elastic abutting member 320. The elastic member 620 is located in the limiting through hole 3103 and sleeved on the threaded connection end of the screw member 610.

[0040] It should be noted that in this embodiment, the number of the elastic abutting members 320 is four. In other embodiments, the number of the elastic abutting members 320 can be set according to actual needs.

[0041] It can be understood that in this embodiment, the elastic member 620 is a spring. By tightening the screw member 610, the threaded connection end of the screw member 610 is connected to the elastic abutting member 320, thereby performing movable limit on the elastic abutting member 320. At the same time, by adjusting the tightness of the screw member 610, the compression degree of the spring in the limit through hole 3103 is adjusted, so that when the inner wall of the elastic abutting suction port 301 abuts against the outer peripheral wall of the cylindrical steel shell, each elastic abutting member 320 can automatically adjust the abutting tightness with the outer peripheral wall of the cylindrical steel shell through the corresponding spring.

[0042] As Figures 3 to 6 shown, in one embodiment, a magnet member 3210 is embedded in each of the elastic abutting members 320. In one embodiment, the elastic abutting suction port 301 is circular to fit the outer peripheral wall contour of the cylindrical steel shell. In one embodiment, a guiding inclined surface 3220 is formed on the inner wall of one end of each elastic abutting member 320 adjacent to the elastic abutting suction port 301.

[0043] It can be understood that a reliable guiding port is formed by surrounding with a plurality of guiding inclined surfaces 3220, which can better dock the elastic abutting suction port 301 with the cylindrical steel shell. At the same time, a magnet member 3210 is embedded in each of the elastic abutting members 320, and the suction force of the magnet can further increase the inner wall of the elastic abutting suction port 301 to closely adhere to the outer peripheral wall of the cylindrical steel shell, so as to achieve a better sealing and abutting effect and prevent air leakage.

[0044] As Figure 5 shown, in one embodiment, the sleeve 310 is an integrally formed plastic structural member. In one embodiment, the plurality of elastic abutting members 320 are all integrally formed elastic plastic structural members.

[0045] It can be understood that both the sleeve 310 and the elastic abutting member 320 adopt integrally formed plastic structural members, which are convenient for manufacturing and easy to repair and replace, and the elastic plastic structural member makes the elastic abutting member 320

[0046] Please refer to Figures 1 to 6 , the present application further provides a cylindrical lithium battery metal powder cleaning device 10, including the cylindrical lithium battery metal powder cleaning device 10 described in any of the above embodiments. The cylindrical lithium battery metal powder cleaning device 10 has a suction assembly 300. The cylindrical lithium battery metal powder cleaning production line further includes a transport line (not shown in the figure), and the transport line (not shown in the figure) is used to transport the cylindrical steel shell to directly below the suction assembly 300 at a fixed distance.

[0047] In this embodiment, when the cylindrical steel shell is transported by a transport line (not shown in the figure) to directly below the suction assembly 300, the other end of the sleeve 310 is then driven by the telescopic driving member 200 to move towards the steel shell, so that the inner wall of the elastic contact suction port 301 is hermetically abutted against the outer peripheral wall of the cylindrical steel shell. Then, a negative pressure system (not shown in the figure) sucks through the sleeve 310 on multiple elastic contact members 320 respectively, so that a vacuum is generated in the elastic contact suction port 301, realizing the suction of the metal powder and dust falling off inside the cylindrical steel shell, so as to achieve the effect of cleaning and dust removal inside the cylindrical steel shell, thereby effectively improving the use safety performance of the cylindrical lithium battery and ensuring the production quality of the cylindrical lithium battery at the same time.

[0048] Compared with the prior art, the present utility model has at least the following advantages:

[0049] First, the telescopic driving member drives the other end of the sleeve to move towards the steel shell, so that the inner wall of the elastic contact suction port is hermetically abutted against the outer peripheral wall of the cylindrical steel shell. Then, the negative pressure system sucks through the sleeve on multiple elastic contact members respectively, so that a vacuum is generated in the elastic contact suction port, realizing the suction of the metal powder and dust falling off inside the cylindrical steel shell, so as to achieve the effect of cleaning and dust removal inside the cylindrical steel shell, thereby effectively improving the use safety performance of the cylindrical lithium battery and ensuring the production quality of the cylindrical lithium battery at the same time.

[0050] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A cleaning device for metallic powder of cylindrical lithium batteries, characterized in that Comprising: Frame; A telescopic driving member fixedly installed on the frame; A suction assembly including a sleeve and a plurality of elastic abutting members; One end of the sleeve is communicated with a negative pressure system, and a plurality of the elastic abutting members are arranged around the inner wall of the other end of the sleeve to jointly form an elastic abutting suction port. The sleeve is fixedly installed on the telescopic driving shaft of the telescopic driving member to drive the other end of the sleeve to move towards the cylindrical steel shell, so that the inner wall of the elastic abutting suction port is hermetically abutted against the outer peripheral wall of the cylindrical steel shell.

2. The cylindrical lithium battery metal powder cleaning device according to claim 1, wherein The telescopic driving member is a cylinder or an electric cylinder.

3. The cylindrical lithium battery metal powder cleaning device according to claim 1, characterized in that, The cylindrical lithium battery metal powder cleaning device further includes a first connecting plate and a second connecting plate. The first connecting plate is fixedly connected to the telescopic driving shaft of the telescopic driving member. One end of the second connecting plate is screwed to the first connecting plate, and a positioning and fastening through hole is formed at the other end of the second connecting plate. The sleeve passes through the positioning and fastening through hole.

4. The cylindrical lithium battery metal powder cleaning device according to claim 1, characterized in that, A countersunk hole, a through hole and a limiting through hole which are sequentially communicated are formed on the outer peripheral wall of the other end of the sleeve; The cylindrical lithium battery metal powder cleaning device further includes an elastic assembly. The elastic assembly includes a screw member and an elastic member. The threaded connection end of the screw member sequentially passes through the countersunk hole, the through hole and the limiting through hole and is threadedly connected to the corresponding elastic abutting member. The elastic member is located in the limiting through hole and sleeved on the threaded connection end of the screw member.

5. The cylindrical lithium battery metal powder cleaning device according to claim 4, characterized in that, A magnet member is embedded in each of the elastic abutting members.

6. The cylindrical lithium battery metal powder cleaning device according to claim 1, wherein, The elastic abutting suction port is circular in shape to adapt to the outer peripheral wall contour of the cylindrical steel shell.

7. The cylindrical lithium battery metal powder cleaning device according to claim 1, characterized in that, A guiding inclined surface is formed on the inner wall of one end of each elastic abutting member adjacent to the elastic abutting suction port.

8. The cylindrical lithium battery metal powder cleaning device according to claim 1, wherein The sleeve is an integrally formed plastic structural member.

9. The cylindrical lithium battery metal powder cleaning device according to claim 1, wherein, The plurality of elastic abutting members are all integrally formed elastic plastic structural members.

10. A cylindrical lithium battery metal powder cleaning production line, characterized in that, Including the cylindrical lithium battery metal powder cleaning device according to any one of claims 1-9, the cylindrical lithium battery metal powder cleaning device has a suction assembly, and the cylindrical lithium battery metal powder cleaning production line further includes a transportation line for transporting the cylindrical steel shell to directly below the suction assembly at a fixed distance.

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