Lithium battery pole piece roller press
By introducing a vacuum pump and heat recovery system into the lithium battery electrode rolling mill, the problem of heat loss after heating was solved, heat recovery and reuse were realized, and the temperature control and equipment operation in the production workshop were improved.
Patent Information
- Application Number
- CN202422536177.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing lithium battery electrode rolling mills have poor heat management after heating, resulting in heat loss into the environment, affecting temperature control in the production workshop and the workers' environment, as well as affecting equipment operation.
The system employs a heating roller, a vacuum pump, and a heat recovery system. The vacuum pump extracts the waste heat gas emitted by the electrode and sends it to a fan for preheating through a heat recovery pipeline, thereby achieving heat recovery and reuse and preventing heat loss.
It effectively collects waste heat after electrode heating, maintains stable temperature in the production workshop, and improves equipment operating efficiency and worker safety.
Smart Images
Figure CN223518293U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of roll press, concretely is a kind of lithium battery pole piece roll press. BACKGROUND
[0002] Lithium battery pole piece roll press is one of the key equipment in the production process of lithium battery, its main function is to press the pole piece by roller, to obtain the thickness and density required, with the rapid growth of lithium battery demand, the efficiency and quality control of pole piece roll press process become the focus of the industry.
[0003] Many existing roll presses adopt heating roller to heat pole piece during processing, but usually ignore the heat management after heating, especially after the pole piece passes through the heating roller, a large amount of heat is left on the pole piece, and these heat is often lost to the environment during the movement and cooling of the pole piece, causing unnecessary heat loss, and increasing the difficulty of temperature control in the production workshop, affecting the normal operation of the equipment and the working environment of workers, therefore, we propose a kind of lithium battery pole piece roll press. UTILITY MODEL CONTENTS
[0004] In order to solve the problem that many existing roll presses adopt heating roller to heat pole piece during processing, but usually ignore the heat management after heating, especially after the pole piece passes through the heating roller, a large amount of heat is left on the pole piece, and these heat is often lost to the environment during the movement and cooling of the pole piece, causing unnecessary heat loss, and increasing the difficulty of temperature control in the production workshop, affecting the normal operation of the equipment and the working environment of workers, the utility model provides the following technical scheme: a kind of lithium battery pole piece roll press, including bottom plate, the bottom plate is provided with feeding frame, the feeding frame is provided with feeding roller, the bottom plate is provided with cylinder, the cylinder has two, the output end of two cylinder is provided with down pressure roller, the bottom plate is provided with vertical plate, the vertical plate is provided with upper pressure roller, the upper pressure roller and down pressure roller have the passage that allows pole piece to pass through, the bottom plate is provided with heating frame, the heating frame is provided with heating roller, the bottom plate is provided with conveying belt, the conveying belt is provided with cover, the cover is provided with vacuum pump, the input end of vacuum pump is provided in cover, the output end of vacuum pump is connected with heat recovery pipeline, the other end of heat recovery pipeline is connected with fan, the fan is arranged on top plate, the top plate is arranged on vertical plate, the vertical plate is provided with hot air blower.
[0005] Preferably, the heating roller is provided with a heating element, the heating element is an electric heating tube, and the heating roller is made of metal material, providing efficient and uniform heating.
[0006] Preferably, a valve is arranged on the heat recovery pipeline to adjust the flow of waste heat gas, thereby controlling the heat recovery efficiency.
[0007] Preferably, the cover body is made of high-temperature-resistant steel plate, and a heat preservation layer is arranged inside the cover body to reduce heat loss.
[0008] Preferably, the heat recovery pipeline is provided with a heat preservation layer, and a temperature sensor is arranged inside the heat recovery pipeline to monitor the temperature change in the heat recovery system, thereby ensuring the normal operation of the system and the effective recovery of heat.
[0009] Preferably, an emergency brake button is arranged on the cover body to quickly stop the operation of the device in case of device failure or emergency, thereby ensuring the safety of operation.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] When working, the pole piece enters the equipment through the feeding roller, the hot air fan is started to preheat it, the pole piece is subjected to roller pressing treatment between the upper pressing roller and the lower pressing roller, the lower pressing roller is driven by the air cylinder to ascend or descend to adjust the pressure between the upper pressing roller and the lower pressing roller, uniform pressure is applied to the pole piece, the thickness consistency and surface flatness of the pole piece are ensured, the pole piece after roller pressing passes through the heating roller, stress concentration is generated in the pole piece during the roller pressing process, part of residual stress is eliminated through heating to improve the mechanical properties of the pole piece, then the pole piece is conveyed to the next step through the conveying belt, the waste heat gas emitted by the pole piece in the cover body is extracted by the vacuum pump and is guided to the heat recovery pipeline, the heat recovery pipeline sends the waste heat gas to the fan to preheat the newly incoming pole piece, when the heat absorbed by the heat recovery pipeline is sufficient, the hot air fan is automatically adjusted or closed according to the waste heat, the waste heat of the pole piece after heating can be effectively collected, direct loss of the waste heat to the environment is avoided, abnormal fluctuation of the temperature in the production environment is avoided, and the temperature stability in the workshop is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0012] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:
[0013] Figure 1 It is a structural schematic view of the present application;
[0014] In the drawings: 1, bottom plate; 2, feeding frame; 3, feeding roller; 4, air cylinder; 5, lower pressing roller; 6, vertical plate; 7, upper pressing roller; 8, pole piece; 9, heating frame; 10, heating roller; 11, conveying belt; 12, cover body; 13, emergency brake button; 14, heat recovery pipeline; 15, fan; 16, top plate; 17, hot air fan; 18, vacuum pump. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0016] By Figure 1 The utility model discloses a bottom plate 1 is provided with the feeding frame 2, is provided with the feeding roller 3 on the feeding frame 2, is provided with the cylinder 4 on the bottom plate 1, and the cylinder 4 has two, and the two cylinder 4 output is provided with the down roller 5, is provided with the vertical plate 6 on the bottom plate 1, is provided with the upper pressure roller 7 on the vertical plate 6, and the upper pressure roller 7 and the down roller 5 between have the passage that allows the pole piece 8 to pass, is provided with the heating frame 9 on the bottom plate 1, is provided with the heating roller 10 on the heating frame 9, is provided with the conveyer belt 11 on the bottom plate 1, is provided with the cover 12 on the conveyer belt 11, is provided with the vacuum pump 18 on the cover 12, and the vacuum pump 18 input is provided in the cover 12, and the vacuum pump 18 output is connected heat recovery pipeline 14, and heat recovery pipeline 14 another end is connected fan 15, and fan 15 is set up on the top plate 16, and the top plate 16 is set up on the vertical plate 6, and is provided with the hot air machine 17 on the vertical plate 6.
[0017] Heating roller 10 is provided with heating element, and heating element is electric heating pipe, and heating roller 10 is made of metal material, provides efficient and uniform heating.
[0018] Valve is provided on heat recovery pipeline 14, is used for adjusting the flow of waste heat gas, thereby control heat recovery efficiency.
[0019] The cover 12 is made of high-temperature-resistant steel plate, and the cover 12 is provided with a heat preservation layer inside, to reduce heat loss.
[0020] Heat recovery pipeline 14 is provided with a heat preservation layer, and a temperature sensor is arranged in the heat recovery pipeline 14, to monitor the temperature change in the heat recovery system, to ensure the normal operation of the system and the effective recovery of heat.
[0021] The cover 12 is provided with an emergency stop button 13, to quickly stop the operation of the equipment in case of failure or emergency, to ensure the safety of operation.
[0022] Working principle: when working, the pole piece 8 enters the equipment through the feeding roller 3, the hot air fan 17 is started to preheat it, the pole piece 8 is subjected to roller pressing treatment between the upper pressing roller 7 and the lower pressing roller 5, the lower pressing roller 5 is driven by the air cylinder 4 to rise or fall, so that the pressure between the upper pressing roller 7 and the lower pressing roller 5 is adjusted, the uniform pressure is applied to the pole piece 8, the thickness consistency and the surface flatness of the pole piece 8 are ensured, the pole piece 8 after roller pressing passes through the heating roller 10, stress concentration is generated in the pole piece 8 during roller pressing, part of residual stress is eliminated through heating, the mechanical properties of the pole piece 8 are improved, then the pole piece 8 is conveyed to the next step through the conveying belt 11, the waste heat gas emitted by the pole piece 8 in the cover body 12 is extracted by the vacuum pump 18, and is guided to the heat recovery pipeline 14, the heat recovery pipeline 14 sends the waste heat gas to the fan 15, the newly incoming pole piece 8 is preheated, when the heat absorbed by the heat recovery pipeline 14 is enough, the hot air fan 17 is automatically adjusted or closed according to the waste heat, the waste heat of the pole piece 8 after heating can be effectively collected, direct dissipation to the environment is avoided, abnormal temperature fluctuation in the production environment is avoided, and the temperature stability in the workshop is ensured.
[0023] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0024] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A lithium battery pole piece rolling machine comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a feeding frame (2), the feeding frame (2) is provided with a feeding roller (3), the bottom plate (1) is provided with a pneumatic cylinder (4), the pneumatic cylinder (4) has two, two pneumatic cylinder (4) output end is provided with a lower roller (5), the bottom plate (1) is provided with a vertical plate (6), the vertical plate (6) is provided with an upper roller (7), the upper roller (7) and the lower roller (5) between the pole piece (8) has the passage that allows, the bottom plate (1) is provided with a heating frame (9), the heating frame (9) is provided with a heating roller (10), the bottom plate (1) is provided with a conveyor belt (11), the conveyor belt (11) is provided with a cover (12), the cover (12) is provided with a vacuum pump (18), the vacuum pump (18) input end is provided in the cover (12), the vacuum pump (18) output end is connected heat recovery pipeline (14), the heat recovery pipeline (14) the other end is connected with a fan (15), the fan (15) is provided on the top plate (16), the top plate (16) is provided on the vertical plate (6), the vertical plate (6) is provided with a hot air machine (17).
2. The lithium battery pole piece rolling machine according to claim 1, characterized in that: The heating roller (10) is provided with a heating element, the heating element is an electric heating tube, the heating roller (10) is made of metal material.
3. The lithium battery pole piece rolling machine according to claim 2, characterized in that: The heat recovery pipeline (14) is provided with a valve.
4. The lithium battery pole piece rolling machine according to claim 3, characterized in that: The cover (12) is made of high-temperature-resistant steel plate, and the cover (12) is provided with a heat preservation layer inside.
5. The lithium battery pole piece rolling machine of claim 4, wherein: The heat recovery pipeline (14) is provided with a heat preservation layer, and the heat recovery pipeline (14) is provided with a temperature sensor inside.
6. A lithium battery pole piece rolling machine according to claim 5, characterized in that: The cover (12) is provided with an emergency brake button (13).