Adjustable rack for lithium battery rolling mill

By designing an adjustable rack in a lithium battery rolling mill, the problem of the inability to adjust the gap between the rollers in lithium battery production is solved, and production flexibility and powder cleaning are achieved.

CN222271377UActive Publication Date: 2024-12-31JIANGXI XINGTEAN OPTOELECTRONICS CO LTD
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Patent Information

Application Number
CN202421079813.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2024-12-31
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

In the production of existing lithium batteries, the roller pressing wheels are fixed, and the gap between the roller pressing wheels cannot be adjusted according to production requirements, resulting in the inability to meet the specific needs of lithium battery production.

Method used

An adjustable frame for lithium battery rolling mill is designed. By setting a movable plate and a screw between the base and the top plate, the gears and threaded connections are used to adjust the gap between the upper pressing roller and the lower pressing roller, and the bottom of the lower pressing roller is arranged and collected. Box for easy powder collection.

Benefits of technology

It realizes flexible adjustment of the gap between the lithium battery electrode plate roller pressing wheel, improves production flexibility, and effectively cleans the powder through the collection box to reduce environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable rack for a lithium battery rolling mill, relates to the technical field of lithium battery production, and aims to solve the problems that during rolling, generally, rolling wheels are fixed, the gap between the rolling wheels cannot be adjusted according to the required production requirement, and the production efficiency is high. The lithium battery production device comprises a base, a plurality of supporting rods and a plurality of supporting rods, the top plate is arranged above the base, a movable plate is arranged between the top plate and the base, an upper pressing roller is arranged at the bottom of the movable plate, a lower pressing roller is arranged in the middle of the upper end of the base, each of the upper pressing roller and the lower pressing roller is composed of a rolling wheel, a motor and a fixed seat, the rolling wheels are arranged in the fixed seats, and the motor is arranged in the fixed seats. The motor is arranged on the outer side of the fixing base and drives the rolling wheels to rotate in the fixing base, the rolling wheel in the upper pressing roller and the rolling wheel in the lower pressing roller oppositely rotate, a through hole is formed in the middle of the surface of the upper end of the top plate, and the through hole communicates with the upper end and the lower end of the top plate.
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Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to an adjustable frame for a lithium battery rolling mill. Background Art

[0002] Pole sheet rolling is an important step in the production process of lithium-ion batteries, and its purpose is to obtain pole sheets that meet the design requirements. Rolling is a very necessary process. After the pole sheet is coated and dried, the peel strength between the active material and the current collector foil is very low. At this time, it is necessary to roll it to enhance the bonding strength between the active material and the foil to prevent peeling during electrolyte immersion and battery use. The rolling process can keep the surface of the pole sheet smooth and flat, thereby preventing the hidden danger of battery short circuit caused by burrs on the surface of the pole sheet piercing the diaphragm and improving the energy density of the battery. The rolling process can compact the electrode material coated on the pole sheet current collector, thereby reducing the volume of the pole sheet, increasing the energy density of the battery, and improving the cycle life and safety performance of the lithium battery.

[0003] During rolling, the rolling wheels are usually fixed, and the gap between the rolling wheels cannot be adjusted according to the required production requirements, so that the production of lithium batteries cannot meet specific needs; therefore, we propose an adjustable frame for lithium battery rolling mill to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable frame for a lithium battery rolling mill to solve the problem raised in the above background technology that when rolling is performed, the rolling wheels are usually fixed and the gap between the rolling wheels cannot be adjusted according to the required production requirements, so that the production of lithium batteries cannot meet specific needs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable frame for a lithium battery rolling mill, comprising a base;

[0006] Also includes:

[0007] A top plate is arranged above the base, a movable plate is arranged between the top plate and the base, an upper pressure roller is arranged at the bottom of the movable plate, a lower pressure roller is arranged at the middle part of the upper end of the base, the upper pressure roller and the lower pressure roller are both composed of a roller pressure wheel, a motor and a fixed seat, the roller pressure wheel is arranged inside the fixed seat, the motor is arranged outside the fixed seat, the motor drives the roller pressure wheel to rotate inside the fixed seat, and the roller pressure wheel in the upper pressure roller and the roller pressure wheel in the lower pressure roller rotate in opposite directions, a through hole is arranged in the middle part of the upper end surface of the top plate, and the through hole connects the upper and lower ends of the top plate, and a first Gear, a threaded hole is provided in the middle of the first gear, and the threaded hole is connected to the upper and lower ends of the first gear, a screw is provided in the middle of the upper end of the movable plate, the screw passes through the through hole and the threaded hole and extends out of the upper end of the first gear, the screw is threadedly connected to the threaded hole, and the first gear rotates to drive the movable plate to move up and down at the bottom of the top plate through the screw, a second gear is provided on one side of the first gear, and the second gear is meshed with the first gear for transmission, a movable shaft is provided at the bottom of the second gear, and the second gear rotates through the movable shaft, and a limit plate is provided at the upper end of the screw.

[0008] Preferably, a locking ring is provided at the bottom of the first gear, and the locking ring is fixed to the bottom of the first gear by welding, and a fixing ring is provided at the upper end of the top plate, the fixing ring and the locking ring are slidably engaged with each other, and the first gear rotates at the upper end of the top plate through the engagement of the locking ring with the fixing ring.

[0009] Preferably, a sliding rod is provided between the top plate and the base, and four sliding rods are provided and symmetrically arranged at the four corners between the top plate and the base, and sliding grooves are provided around the surface of the movable plate, the sliding grooves connect the upper and lower ends of the movable plate, and the sliding rod is connected to the sliding grooves by sliding engagement.

[0010] Preferably, a scale is provided on the surface of the sliding rod.

[0011] Preferably, a handle is provided on one side of the upper end of the second gear.

[0012] Preferably, a collecting box is provided at the bottom of the lower pressing roller, and two collecting boxes are provided and are fixedly connected by snapping.

[0013] Preferably, the two collecting boxes are fixed by snap-fitting connection of a protrusion and a groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. A movable plate is arranged between the base and the top plate, and the upper pressure roller is arranged at the bottom of the movable plate. A screw is arranged at the upper end of the movable plate and extends out of the upper end of the top plate. At the same time, a first gear and a second gear are arranged at the upper end of the top plate. The first gear is meshed with the second gear for transmission, wherein the first gear is threadedly connected with the screw. When the distance between the upper pressure roller and the lower pressure roller needs to be adjusted, only the second gear needs to be rotated to drive the first gear to rotate, and the screw drives the movable plate to rise or fall when the first gear rotates, so as to control the distance between the upper pressure roller and the lower pressure roller.

[0016] 2. By setting a collection box at the bottom of the lower pressure roller, it is convenient to collect the powder generated when the lithium battery pole piece is rolled, which is convenient for cleaning and preventing environmental pollution. The collection box can be divided into two parts and connected and fixed by the engagement of the groove and the protrusion. It is convenient to pass the collection box from the bottom of the lower pressure roller and then splice it, so as to facilitate the collection of powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is the overall structural plan of the utility model;

[0019] Figure 3 It is a cross-sectional view of the collection box of the utility model;

[0020] Figure 4 It is an enlarged view of the structure at A of the utility model;

[0021] In the figure: 1. base; 2. top plate; 3. movable plate; 4. slide bar; 5. slide groove; 6. scale; 7. lower pressure roller; 8. upper pressure roller; 9. roller pressure wheel; 10. motor; 11. fixed seat; 12. first gear; 13. snap ring; 14. fixed ring; 15. screw; 16. through hole; 17. threaded hole; 18. second gear; 19. limit plate; 20. handle; 21. collection box; 22. bump; 23. groove; 24. movable shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 , an embodiment provided by the utility model: an adjustable frame for a lithium battery rolling mill, comprising a base 1;

[0024] Also includes:

[0025] A top plate 2 is arranged above the base 1, a movable plate 3 is arranged between the top plate 2 and the base 1, an upper pressure roller 8 is arranged at the bottom of the movable plate 3, a lower pressure roller 7 is arranged at the middle of the upper end of the base 1, the upper pressure roller 8 and the lower pressure roller 7 are both composed of a roller pressing wheel 9, a motor 10 and a fixed seat 11, the roller pressing wheel 9 is arranged inside the fixed seat 11, the motor 10 is arranged outside the fixed seat 11, the motor 10 drives the roller pressing wheel 9 to rotate inside the fixed seat 11, and the roller pressing wheel 9 in the upper pressure roller 8 and the roller pressing wheel 9 in the lower pressure roller 7 rotate in opposite directions, a through hole 16 is arranged in the middle of the upper end surface of the top plate 2, and the through hole 16 connects the upper and lower ends of the top plate 2, a first gear 12 is arranged in the middle of the upper end of the top plate 2, and the first gear 12 is arranged in the middle of the upper end of the top plate 2. A threaded hole 17 is provided in the middle of the gear 12, and the threaded hole 17 connects the upper and lower ends of the first gear 12. A screw 15 is provided in the middle of the upper end of the movable plate 3. The screw 15 passes through the through hole 16 and the threaded hole 17 and extends out of the upper end of the first gear 12. The screw 15 is threadedly connected with the threaded hole 17, and the first gear 12 rotates to drive the movable plate 3 to move up and down at the bottom of the top plate 2 through the screw 15. A second gear 18 is provided on one side of the first gear 12, and the second gear 18 is meshed with the first gear 12 for transmission. A movable shaft 24 is provided at the bottom of the second gear 18, and the second gear 18 rotates through the movable shaft 24. A limit plate 19 is provided at the upper end of the screw 15.

[0026] When it is necessary to adjust the distance of the gap between the upper pressure roller 8 and the lower pressure roller 7, it is only necessary to rotate the second gear 18 to drive the first gear 12 to rotate, and the screw 15 drives the movable plate 3 to rise or fall under the rotation of the first gear 12 to control the distance between the upper pressure roller 8 and the lower pressure roller 7.

[0027] See also Figure 4 A snap ring 13 is provided at the bottom of the first gear 12, and the snap ring 13 is fixed to the bottom of the first gear 12 by welding. A fixing ring 14 is provided at the upper end of the top plate 2. The fixing ring 14 is slidably engaged with the snap ring 13, and the first gear 12 is rotated at the upper end of the top plate 2 through the engagement of the snap ring 13 with the fixing ring 14, so that the first gear 12 can be rotated at the upper end of the top plate 2 conveniently.

[0028] See also Figure 1 A sliding rod 4 is arranged between the top plate 2 and the base 1, and four sliding rods 4 are arranged and symmetrically arranged at the four corners between the top plate 2 and the base 1. A sliding groove 5 is arranged around the surface of the movable plate 3. The sliding groove 5 connects the upper and lower ends of the movable plate 3, and the sliding rod 4 is slidably engaged with the sliding groove 5. The sliding rod 4 can support the top plate 2, and the sliding rod 4 can facilitate the movable plate 3 to slide up and down.

[0029] See also Figure 1A scale 6 is provided on the surface of the slide bar 4, and the distance between the upper pressing roller 8 and the lower pressing roller 7 can be determined according to the scale 6.

[0030] See also Figure 1 A handle 20 is provided on one side of the upper end of the second gear 18 to facilitate the rotation of the second gear 18.

[0031] See also Figure 1 A collecting box 21 is provided at the bottom of the lower pressing roller 7, and the collecting box 21 is provided in two pieces and is connected and fixed by snapping, so as to facilitate the recovery of the powder generated by the rolling of the pole piece.

[0032] See also Figure 3 The two collecting boxes 21 are fixed by the snap connection between the protrusion 22 and the groove 23, which is convenient for disassembly and splicing.

[0033] Working principle: a movable plate 3 is arranged between the base 1 and the top plate 2, and the upper pressure roller 8 is arranged at the bottom of the movable plate 3. A screw rod 15 is arranged at the upper end of the movable plate 3 and extends out of the upper end of the top plate 2. At the same time, a first gear 12 and a second gear 18 are arranged at the upper end of the top plate 2. The first gear 12 and the second gear 18 are meshed and transmitted, wherein the first gear 12 and the screw rod 15 are threadedly connected. When the distance between the upper pressure roller 8 and the lower pressure roller 7 needs to be adjusted, only the second gear 18 needs to be rotated to drive the first gear 12 to rotate, and the screw rod 15 drives the movable plate 3 to rise or fall under the rotation of the first gear 12, so as to control the distance between the upper pressure roller 8 and the lower pressure roller 7.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adjustable frame for a lithium battery rolling mill, comprising a base (1); Features: Also includes: A top plate (2) is arranged above the base (1); a movable plate (3) is arranged between the top plate (2) and the base (1); an upper pressing roller (8) is arranged at the bottom of the movable plate (3); a lower pressing roller (7) is arranged at the middle of the upper end of the base (1); the upper pressing roller (8) and the lower pressing roller (7) are both composed of a roller pressing wheel (9), a motor (10) and a fixed seat (11); the roller pressing wheel (9) is arranged inside the fixed seat (11); the motor (10) and the fixed seat (11) are provided with a plurality of rollers (9) and a plurality of rollers (7) arranged at the bottom of the movable plate (3); and the upper pressing roller (8) and the lower pressing roller (7) are provided with a plurality of rollers (9) and a plurality of rollers (7) arranged at the bottom of the movable plate (3). The motor (10) is arranged outside the fixed seat (11), the motor (10) drives the roller pressing wheel (9) to rotate inside the fixed seat (11), and the roller pressing wheel (9) in the upper pressing roller (8) and the roller pressing wheel (9) in the lower pressing roller (7) rotate in opposite directions, a through hole (16) is arranged in the middle of the upper end surface of the top plate (2), and the through hole (16) is connected to the upper and lower ends of the top plate (2), and a first gear ( 12), a threaded hole (17) is provided in the middle of the first gear (12), and the threaded hole (17) is connected to the upper and lower ends of the first gear (12), a screw rod (15) is provided in the middle of the upper end of the movable plate (3), the screw rod (15) passes through the through hole (16) and the threaded hole (17) and extends out of the upper end of the first gear (12), the screw rod (15) is threadedly connected with the threaded hole (17), and the first gear (12) rotates through the screw rod (15) to drive the movable plate (3) to move up and down at the bottom of the top plate (2), a second gear (18) is provided on one side of the first gear (12), and the second gear (18) is meshed with the first gear (12) for transmission, a movable shaft (24) is provided at the bottom of the second gear (18), and the second gear (18) rotates through the movable shaft (24), and a limit plate (19) is provided at the upper end of the screw rod (15).

2. The adjustable frame for a lithium battery rolling mill according to claim 1, characterized in that: A snap ring (13) is provided at the bottom of the first gear (12), and the snap ring (13) is fixed to the bottom of the first gear (12) by welding. A fixing ring (14) is provided at the upper end of the top plate (2), and the fixing ring (14) is connected to the snap ring (13) by sliding engagement, and the first gear (12) rotates on the upper end of the top plate (2) through the engagement of the snap ring (13) and the fixing ring (14).

3. The adjustable frame for a lithium battery rolling mill according to claim 1, characterized in that: A sliding rod (4) is arranged between the top plate (2) and the base (1), and four sliding rods (4) are arranged and symmetrically arranged at four corners between the top plate (2) and the base (1). A sliding groove (5) is arranged around the surface of the movable plate (3), and the sliding groove (5) connects the upper and lower ends of the movable plate (3), and the sliding rod (4) is connected to the sliding groove (5) by sliding engagement.

4. The adjustable frame for a lithium battery rolling mill according to claim 3, characterized in that: A scale (6) is provided on the surface of the sliding rod (4).

5. The adjustable frame for a lithium battery rolling mill according to claim 1, characterized in that: A handle (20) is provided on one side of the upper end of the second gear (18).

6. The adjustable frame for a lithium battery rolling mill according to claim 1, characterized in that: A collecting box (21) is provided at the bottom of the lower pressure roller (7), and two collecting boxes (21) are provided and are fixedly connected by snapping.

7. The adjustable frame for a lithium battery rolling mill according to claim 6, characterized in that: The two collecting boxes (21) are fixed by means of a snap-fit ​​connection between the protrusion (22) and the groove (23).