Cylindrical secondary lithium ion battery winding forming device

Abstract

The utility model relates to the technical field of battery production, in particular to a cylindrical secondary lithium ion battery winding forming device. Comprising a winding machine and the like. And the winding machine is provided with a plurality of rotating rollers. When the magnetic attraction block located on the front right portion conducts cleaning work, the two magnetic attraction blocks on the left portion attract metal powder on the pole pieces, and therefore when the metal powder is attracted continuously, the independent magnetic attraction blocks can be cleaned, the cleaned magnetic attraction blocks can be alternately replaced with the other magnetic attraction blocks, and the cleaning efficiency is improved. The situation that the adsorption effect is poor due to untimely cleaning is avoided; the descending magnetic attraction block makes contact with the scraping plate, then scraping work is conducted, the falling powder scraped after descending is far away from the left front magnetic attraction block and cannot be adsorbed by the left front magnetic attraction block, and therefore the situation that more metal powder is adsorbed by the left front magnetic attraction block, and the follow-up cleaning burden is increased is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production technical field especially relates to cylindrical secondary lithium ion battery winding forming device. BACKGROUND

[0002] The metal powder will be attached to the pole piece in the process of cutting and rolling, and the metal powder attached to the surface of the pole piece will cause uneven coating, abnormal local current density during charging and discharging, affect the heat metering and cycle life, so the metal powder on the pole piece needs to be adsorbed and cleaned by the magnetic block.

[0003] When the metal powder is adsorbed by the magnetic block, with the increase of adsorption time, a large amount of metal powder is adsorbed on the surface of the magnetic block, in order to ensure the adsorption effect of the magnetic block and avoid the metal powder falling on the pole piece, the metal powder on the surface of the magnetic block needs to be cleaned every 4 hours, at this time, the winding work needs to be stopped, the magnetic block needs to be cleaned, and the working efficiency is affected. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects that the winding work needs to be stopped, the magnetic block needs to be cleaned, and the working efficiency is affected, the utility model provides a cylindrical secondary lithium ion battery winding forming device.

[0005] Technical scheme: a cylindrical secondary lithium ion battery winding forming device, comprising a winding machine; the winding machine is provided with a plurality of rotating rollers; further comprising rotating motor, connecting block, magnetic block and cleaning assembly; the winding machine is fixedly connected with a plurality of rotating motors, each rotating motor is distributed beside the corresponding pole piece, and the output shaft of each rotating motor is fixedly connected with a connecting block; each connecting block is connected with a plurality of magnetic blocks; the winding machine is connected with a cleaning assembly for cleaning the magnetic block; the rotating motor is connected with an external power supply.

[0006] Further, a plurality of electric push rods are fixedly connected on each connecting block; the extension part of each electric push rod is fixedly connected with the corresponding magnetic block; the electric push rod is connected with an external power supply.

[0007] Further, the cleaning assembly comprises a collecting box and a scraper; the winding machine is fixedly connected with the collecting box; the collecting box is connected with the scraper.

[0008] Further, a plurality of transmission blocks are fixedly connected on each connecting block; the magnetic block is an electromagnet, and each magnetic block is provided with a contact part; each contact part is in contact with the corresponding transmission block; the transmission block is connected with an external power supply.

[0009] Further, the collecting area of the collecting box is larger than that of the magnetic block.

[0010] Further, the contact area between the scraper and the magnetic block is non-woven fabric.

[0011] Furthermore, the scraper and the collection box are connected by a sliding damping mechanism. Beneficial effects

[0012] When the magnetic block located on the right front is cleaning, the two magnetic blocks on the left will attract the metal powder on the electrode. This allows for continuous attraction of metal powder while cleaning individual magnetic blocks. The cleaned magnetic blocks can then be rotated to replace the others, avoiding poor attraction due to untimely cleaning.

[0013] After descending, the magnetic block contacts the scraper and then performs the scraping work. The powder that falls after descending is far from the left front magnetic block and therefore cannot be attracted by it. This avoids the left front magnetic block attracting more metal powder and increasing the subsequent cleaning burden. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the cylindrical secondary lithium-ion battery winding and forming device disclosed in this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the winding machine, rotating motor, connecting block and magnetic block disclosed in the cylindrical secondary lithium-ion battery winding and forming device of this utility model;

[0016] Figure 3 This is a cross-sectional view of the connecting block disclosed in the cylindrical secondary lithium-ion battery winding and forming device of this utility model;

[0017] Figure 4 This is a schematic diagram of the magnetic block, collection box, scraper assembly, electric push rod, and transmission block disclosed in the cylindrical secondary lithium-ion battery winding and forming device of this utility model.

[0018] Reference numerals: 1-winding machine, 2-rotating motor, 3-connecting block, 4-magnetic block, 5-collecting box, 6-scraper, 101-electric push rod, 111-transfer block, 1001-rotating roller, 4001-contact part, 100-electrode. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] Example 1

[0021] A cylindrical secondary lithium-ion battery winding and forming device, such as Figures 1-4 As shown, it includes a winding machine 1; the winding machine 1 is provided with a plurality of rotating rollers 1001; the electrode sheet 100 is conveyed to the winding mechanism of the winding machine 1 through the rotating rollers 1001, and then the winding mechanism of the winding machine 1 performs the winding operation on the electrode sheet 100.

[0022] Also include rotating motor 2, connecting block 3, magnetic block 4 and cleaning assembly; winding machine 1 is fixedly connected with a plurality of rotating motor 2, each rotating motor 2 is distributed beside corresponding pole piece 100, and the output shaft of each rotating motor 2 is fixedly connected with a connecting block 3; each connecting block 3 is connected with four magnetic blocks 4; winding machine 1 is connected with cleaning assembly; rotating motor 2 is connected with external power supply.

[0023] Also include four electric push rods 101 fixedly connected on each connecting block 3; the telescopic part of each electric push rod 101 is fixedly connected with corresponding magnetic block 4; electric push rod 101 is connected with external power supply.

[0024] Cleaning assembly includes collecting box 5 and scraper 6; winding machine 1 is bolted with collecting box 5; collecting box 5 is connected with scraper 6.

[0025] Also include four transmission blocks 111 fixedly connected on each connecting block 3; magnetic block 4 is electromagnet, and each magnetic block 4 is provided with contact part 4001; each contact part 4001 is in contact with corresponding transmission block 111; transmission block 111 is connected with external power supply.

[0026] The collecting area of collecting box 5 is greater than that of magnetic block 4, so that the metal dust can directly fall into collecting box 5.

[0027] The contact area between scraper 6 and magnetic block 4 is non-woven fabric, which enhances the cleaning effect of magnetic block 4.

[0028] The connection between scraper 6 and collecting box 5 is sliding damping type, which facilitates the disassembly and replacement of scraper 6.

[0029] The specific working steps are as follows:

[0030] When the battery production winding work is carried out, the pole piece 100 and the diaphragm are conveyed to the winding machine 1 of the winding machine 1 through the rotating roller 1001, and then the winding machine 1 carries out the winding work. During the conveying process, the pole piece 100 moves from front to back through the magnetic block 4, and the distance between the magnetic block 4 and the pole piece 100 is 38mm. At this time, the metal dust on the pole piece 100 is sucked away by the two magnetic blocks 4 located on the left, and is adsorbed on the magnetic block 4. The pole piece 100 moves to the left front magnetic block 4 first, so the left front magnetic block 4 absorbs more metal powder. When the left two magnetic blocks 4 adsorb metal powder for a period of time, causing the left front magnetic block 4 to adhere to more metal powder, control the rotating motor 2 to drive all the magnetic blocks 4 to rotate counterclockwise from the perspective of looking down, so that the magnetic block 4 located in the left front rotates to the right front. The left front magnetic block 4 no longer participates in the adsorption work. After rotating, the scraper 6 contacts the magnetic block 4. After the left front magnetic block 4 adsorbs for a period of time, it rotates again. At this time, the scraper 6 scrapes the adsorbed metal powder on the right front magnetic block 4 in contact with it, and the scraped metal powder falls into the collection box 5 for collection. When the magnetic block 4 located in the right front is cleaned, the two magnetic blocks 4 on the left will adsorb the metal powder on the pole piece 100, so that the metal powder can be adsorbed continuously, and the magnetic block 4 can be cleaned. The cleaned magnetic block 4 can be rotated with the remaining magnetic block 4, avoiding the situation that the cleaning is not timely and the adsorption effect is poor.

[0031] Considering that the metal powder on the right front magnetic block 4 is easy to be sucked away by the magnetic block 4 located on the left when it is scraped and falls, causing the left front magnetic block 4 to be about to carry out cleaning work to adsorb more metal powder. Therefore, when the right magnetic block 4 rotates to the back, the electric push rod 101 located in the right front is first controlled to drive the magnetic block 4 located in the right front to descend, so that the descended magnetic block 4 contacts the scraper 6, and then the scraping work is carried out. The powder falling after the scraping work is far away from the left front magnetic block 4, so it cannot be adsorbed by the left front magnetic block 4, thereby avoiding the left front magnetic block 4 from adsorbing more metal powder and increasing the subsequent cleaning burden.

[0032] The magnetic block 4 provides power supply through the contact part 4001 in contact with the transmission block 111 to perform the magnetic attraction work, so that the magnetic block 4 located at the right front is away from the transmission block 111 after falling, and the contact part 4001 is not in contact with the transmission block 111, so that the magnetic block 4 loses the attraction force after falling, at this time, most of the metal powder will automatically separate from the magnetic block 4, and then fall into the collection box 5, and then only a small amount of metal powder attached to the magnetic block 4 needs to be scraped, avoiding that all the metal powder needs to be scraped by the scraper 6, so that a large amount of metal powder is attached to the scraper 6, thereby affecting the subsequent cleaning work, and thereby reducing the cleaning burden of the scraper 6 and strengthening the cleaning effect; when the cleaning work is completed, the contact part 4001 of the magnetic block 4 driven by the electric push rod 101 is lifted to make the contact part 4001 in contact with the transmission block 111, so that the magnetic block 4 is powered on to continue the adsorption work of the metal powder.

[0033] Although the utility model has been described with reference to the exemplary embodiments, it should be understood that the utility model is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to encompass all modifications and all equivalent structures and functions.

Claims

1. A cylindrical secondary lithium ion battery winding forming device, comprising a winding machine (1); the winding machine (1) is provided with a plurality of rotating rollers (1001); characterized in that: The winding machine (1) is fixedly connected with a plurality of rotating motors (2), each rotating motor (2) is distributed beside a corresponding pole piece (100), and an output shaft of each rotating motor (2) is fixedly connected with a connecting block (3); each connecting block (3) is connected with a plurality of magnetic attraction blocks (4); the winding machine (1) is connected with a cleaning assembly for cleaning the magnetic attraction blocks (4); and the rotating motor (2) is connected with an external power supply.

2. The cylindrical secondary lithium-ion battery winding forming device according to claim 1, characterized in that: The winding machine (1) is fixedly connected with a plurality of rotating motors (2), each rotating motor (2) is distributed beside a corresponding pole piece (100), and an output shaft of each rotating motor (2) is fixedly connected with a connecting block (3); each connecting block (3) is connected with a plurality of magnetic attraction blocks (4); the winding machine (1) is connected with a cleaning assembly for cleaning the magnetic attraction blocks (4); and the rotating motor (2) is connected with an external power supply.

3. The cylindrical secondary lithium-ion battery winding forming device according to claim 1, characterized in that: The cleaning assembly comprises a collecting box (5) and a scraper (6); the winding machine (1) is fixedly connected with the collecting box (5); and the collecting box (5) is connected with the scraper (6).

4. The cylindrical secondary lithium-ion battery winding forming device according to any one of claims 2-3, characterized in that: The winding machine (1) is fixedly connected with a plurality of rotating motors (2), each rotating motor (2) is distributed beside a corresponding pole piece (100), and an output shaft of each rotating motor (2) is fixedly connected with a connecting block (3); each connecting block (3) is connected with a plurality of magnetic attraction blocks (4); the winding machine (1) is connected with a cleaning assembly for cleaning the magnetic attraction blocks (4); and the rotating motor (2) is connected with an external power supply.

5. The cylindrical secondary lithium-ion battery winding forming device according to claim 3, characterized in that: The collecting box (5) has a collecting area larger than the magnetic attraction block (4).

6. The cylindrical secondary lithium-ion battery winding forming device according to claim 3, characterized in that: The contact area between the scraper (6) and the magnetic attraction block (4) is made of non-woven fabric.

7. The cylindrical secondary lithium-ion battery winding forming device according to claim 3, characterized in that: The scraper (6) and the collecting box (5) are connected in a sliding damping mode.

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