Ten-roller double-sided dry electrode film forming equipment
The design of the ten-roller double-sided dry electrode film forming equipment solved the problem of controlling the thickness and areal density of the double-sided composite, realizing efficient and low-cost electrode production, meeting process requirements and improving product quality.
Patent Information
- Application Number
- CN202423230245.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing six-roller and eight-roller double-sided dry electrode film forming equipment has difficulty meeting the process requirements for film thickness and areal density during double-sided lamination, and cannot achieve thickness feedback and closed-loop control after current collector lamination. The equipment layout is also limited by the height of the plant.
The equipment employs a ten-roll double-sided dry electrode film forming system, which includes unwinding, multi-roll rolling and rewinding sections, and integrates a surface density and thickness measurement machine. It utilizes a ten-roll mechanism for double-sided lamination and thinning, and combines a servo motor, hydraulic cylinder and heating device to achieve continuous and efficient electrode production.
It achieves the process requirements of double-sided composite, reduces equipment investment costs, improves production efficiency and product quality, and reduces floor space and labor input.
Smart Images
Figure CN223777906U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dry electrode coating equipment technical field, concretely relates to a kind of ten-roll double-sided dry electrode film-forming equipment. BACKGROUND
[0002] Current multi-roll tandem rolling mode uses more six-roll mechanism, can realize single-sided composite or double-sided composite simultaneously, when double-sided composite simultaneously, in addition to the powder film-forming (two roll gaps) of two sides and the current collector composite (one roll gap) of middle, there is still one roll gap on each side to thin the film, so the film-forming thickness of two sides is larger, difficult to meet the required process requirements, such as the thickness of current collector after double-sided composite, area density and the like.
[0003] And when six-roll mechanism is increased to eight-roll mechanism, since the roll gap of the most two sides can only film-forming from top to bottom, after the film is thinned by two roll gaps, the roll gap in the middle requires that the current collector must go up from bottom when composite, at this time, unwinding mechanism needs to be arranged below eight-roll mechanism, and winding mechanism is arranged above eight-roll mechanism, so under the limitation of general factory height, it is impossible to configure area density and thickness measuring integrated machine after the composite of current collector, therefore, such eight-roll double-sided dry electrode film-forming equipment can realize the function of double-sided composite simultaneously, and can also reach the process requirement of film-forming thickness by twice thinning, but the thickness of current collector after composite cannot be fed back to the system and closed-loop controlled with eight-roll mechanism.
[0004] Therefore, it is necessary to provide a kind of ten-roll double-sided dry electrode film-forming equipment to solve the above problems. INVENTION CONTENTS
[0005] In order to overcome the deficiencies of the prior art, the utility model provides a kind of ten-roll double-sided dry electrode film-forming equipment, which can meet the demand of double-sided composite, without affecting the process requirement of electrode film thickness, while reducing the investment cost of overall equipment and improving the production efficiency of product.
[0006] The technical scheme adopted by the utility model to solve its technical problems is:
[0007] A kind of ten-roll double-sided dry electrode film-forming equipment, comprising:
[0008] Unwinding part, including unwinding mechanism, the unwinding mechanism is used to release the roll of current collector;
[0009] Multi-roll tandem rolling part, including ten-roll mechanism and two feeding mechanisms, two The feeding mechanisms are respectively arranged at the two ends of the ten-roll mechanism, the feeding mechanism is used to provide dry electrode material powder, the ten-roll mechanism is used to manufacture electrode film to dry electrode material powder, and the current collector passes through the middle part of the ten-roll mechanism, and the electrode film is arranged on the two sides of the current collector to form electrode sheet;
[0010] A winding section comprising a winding mechanism, the pole piece being connected with the winding mechanism, the winding mechanism being used for collecting the pole piece.
[0011] As a further improvement of the above technical solution, the unwinding mechanism comprises a servo motor, a speed reducer and an air expansion shaft, the current collector roll is fixed on the air expansion shaft, the servo motor is connected with the speed reducer, the air expansion shaft is connected with the speed reducer, and the servo motor is used to drive the current collector roll to rotate for active unwinding.
[0012] As a further improvement of the above technical solution, the unwinding section further comprises an unwinding deviation correction mechanism, an unwinding tension detection device, an unwinding tape connecting platform and an unwinding tension swing roller, the unwinding deviation correction mechanism, the unwinding tension detection device, the unwinding tape connecting platform and the unwinding tension swing roller are sequentially arranged at the rear end of the unwinding mechanism, the unwinding deviation correction mechanism is used for centering and correcting the current collector, the unwinding tension detection device and the unwinding tension swing roller are used for controlling the unwinding tension of the current collector, and the unwinding tape connecting platform is used for connecting the current collector.
[0013] As a further improvement of the above technical solution, the multi-roller rolling section further comprises a process deviation correction mechanism and a surface density and thickness measuring integrated machine, the process deviation correction mechanism is arranged at the front end of the ten-roller mechanism, and the surface density and thickness measuring integrated machine is arranged at the rear end of the ten-roller mechanism, the process deviation correction mechanism is used for correcting the current collector before compounding, and the surface density and thickness measuring integrated machine is used for measuring the thickness and surface density data of the pole piece after compounding.
[0014] As a further improvement of the above technical solution, the ten-roller mechanism comprises ten rollers, and the center axes of the ten rollers are located on the same horizontal plane.
[0015] As a further improvement of the above technical solution, nine roller gaps are arranged between the ten rollers, and the widths of the nine roller gaps decrease from both sides to the middle.
[0016] As a further improvement of the above technical solution, hydraulic cylinders are arranged at both ends of the roller.
[0017] As a further improvement of the above technical solution, a heating device is arranged in each of the rollers, and the heating range of the roller is set to 0-150℃.
[0018] As a further improvement of the above technical solution, the feeding mechanism comprises a weighing hopper, a servo screw and a vibrating screen, the servo screw is connected with the lower end of the weighing hopper, one end of the vibrating screen is connected with the servo screw, and the other end of the vibrating screen is connected with one end of the ten-roller mechanism.
[0019] As a further improvement of the above technical solutions, the winding part further comprises a winding tension swing roller, a winding tension detection device, a winding tape receiving platform and a winding deviation correction mechanism, the winding tension swing roller, the winding tension detection device, the winding tape receiving platform and the winding deviation correction mechanism are sequentially arranged from front to back at the front end of the winding mechanism, the winding deviation correction mechanism is used for centering and correcting the composite pole piece, the winding tension swing roller and the winding tension detection device are used for controlling the winding tension, and the winding tape receiving platform is used for tape receiving during winding.
[0020] The utility model has the advantages of:
[0021] The utility model discloses a layout of the unwinding and winding part and the surface density thickness all-in-one machine is integrated together, which effectively reduces the floor area of the factory building with the same function and reduces the investment cost of the equipment. The positive and negative pole powder material is automatically fed through the feeding mechanism, replacing the manual screening, tray carrying and material shovel feeding, and can be continuously conveyed, reducing the labor cost. The selection of the ten-roller mechanism avoids the problem of the eight-roller mechanism that the current collector flows from bottom to top. The winding part can be arranged below the equipment without affecting the placement of the surface density thickness all-in-one machine, realizing the compactness and practicality of the equipment layout. The ten-roller mechanism can distribute three roller gaps on both sides to thin the diaphragm, meeting the high-standard process requirements of the dry electrode product thickness and effectively improving the product quality. BRIEF DESCRIPTION OF DRAWINGS
[0022] The utility model will be further described below in combination with the drawings and examples.
[0023] Figure 1 Fig. 1 is a structural schematic diagram of the ten-roller double-sided dry electrode film forming equipment of the utility model;
[0024] Figure 2 Fig. 2 is a structural schematic diagram of the ten-roller mechanism of the utility model.
[0025] Fig. 1 is a structural schematic diagram of the ten-roller double-sided dry electrode film forming equipment of the utility model; Fig. 2 is a structural schematic diagram of the ten-roller mechanism of the utility model; Fig. 3 is a structural schematic diagram of the unwinding mechanism of the utility model; Fig. 4 is a structural schematic diagram of the unwinding deviation correction mechanism of the utility model; Fig. 5 is a structural schematic diagram of the unwinding tension detection device of the utility model; Fig. 6 is a structural schematic diagram of the unwinding tape receiving platform of the utility model; Fig. 7 is a structural schematic diagram of the unwinding tension swing roller of the utility model; Fig. 8 is a structural schematic diagram of the process deviation correction mechanism of the utility model; Fig. 9 is a structural schematic diagram of the feeding mechanism of the utility model; Fig. 10 is a structural schematic diagram of the surface density thickness all-in-one machine of the utility model; Fig. 11 is a structural schematic diagram of the winding tension swing roller of the utility model; Fig. 12 is a structural schematic diagram of the winding tension detection device of the utility model; Fig. 13 is a structural schematic diagram of the winding tape receiving platform of the utility model; Fig. 14 is a structural schematic diagram of the winding deviation correction mechanism of the utility model; and Fig. 15 is a structural schematic diagram of the winding mechanism of the utility model. DETAILED DESCRIPTION
[0026] The utility model discloses a concept, specific structure and the technical effect produced of the utility model will be clearly and completely described in the following combining with the embodiment and drawing, to fully understand the purpose, features and effect of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, and not all embodiments, based on the embodiment of the utility model, other embodiments obtained by the person skilled in the art without paying creative labor all belong to the protection scope of the utility model. In addition, all the connection / connection relations involved in the patent are not single component direct interface, but can be composed of better connection structure by adding or reducing connection auxiliary parts according to the specific implementation situation, such as fixed connection / fixed installation, which can be selected according to the needs screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and the like, such as detachable connection, which can be selected according to the needs screw connection, bolt connection, threaded connection, buckle connection, mortise and tenon connection, magic tape connection and the like. The various technical features in the utility model creation can be interactively combined under the premise of not mutually contradictory conflict.
[0027] Referring to Figure 1 , Figure 2 A kind of ten-roller double-sided dry electrode film-forming equipment, comprising: unwinding part, multi-roller rolling part and winding part, wherein, the unwinding part includes unwinding mechanism 1, the unwinding mechanism 1 is used to release the roll of current collector 15, ensure the stability and continuity of current collector 15 release in subsequent processing process;The multi-roller rolling part includes ten-roller mechanism 7 and two feeding mechanisms 8, two the feeding mechanism 8 is respectively arranged at the two ends of the ten-roller mechanism 7, the ten-roller mechanism 7 is made into electrode film 16 by dry electrode material powder, and the current collector 15 passes through the middle part of the ten-roller mechanism 7, the electrode film 16 is compounded on the two sides of the current collector 15 to form pole piece 17, realizes the continuous, efficient compounding of electrode film and current collector;The winding part includes winding mechanism 14, the pole piece 17 is connected with the winding mechanism 14, and the winding mechanism 14 is used to collect the pole piece 17, to ensure the continuity and integrity of the pole piece 17.
[0028] Referring to Figure 1 In the embodiment of the utility model, the unwinding mechanism 1 includes servo motor, speed reducer and gas expansion shaft, the roll of current collector 15 is fixed on the gas expansion shaft, the speed reducer is directly connected with servo motor, the gas expansion shaft is connected with the speed reducer, the servo motor and speed reducer drive the gas expansion shaft to drive the roll of current collector 15 to rotate and carry out active unwinding, to realize the accurate control of the roll of current collector 15, improve the stability and precision of unwinding process.
[0029] The unwinding part further comprises an unwinding deviation rectifying mechanism 2, an unwinding tension detection device 3, an unwinding tape splicing platform 4 and an unwinding tension swing roller 5, which are sequentially arranged at the rear end of the unwinding mechanism 1, and the unwinding deviation rectifying mechanism 2 is used for centering and rectifying the current collector 15, so as to ensure that the current collector 15 always maintains the correct position during unwinding, avoids production problems caused by position deviation, and improves the production quality and consistency of the product; the unwinding tension detection device 3 and the unwinding tension swing roller 5 are mainly used for controlling the unwinding tension of the current collector 15, the unwinding tension detection device 3 can monitor the unwinding tension of the current collector 15 in real time, so as to ensure that the tension is kept within the set range, and the unwinding tension swing roller 5 serves as an auxiliary control means, further enhancing the stability and accuracy of tension control; the unwinding tape splicing platform 4 is used for splicing the current collector 15, so that the splicing process of the current collector 15 is more convenient and efficient, manual intervention and downtime are reduced, and the production efficiency is improved.
[0030] Referring to Figure 1 In the embodiment of the utility model, the multi-roller rolling part further comprises a process deviation rectifying mechanism 6 and a surface density and thickness measuring all-in-one machine 9, the process deviation rectifying mechanism 6 is arranged at the front end of the ten-roller mechanism 7, and the process deviation rectifying mechanism 6 is used for rectifying the current collector 15 before compounding, so as to ensure that the current collector 15 maintains the correct position before entering the ten-roller mechanism 7, further improving the machining precision and consistency of the pole piece 17; the surface density and thickness measuring all-in-one machine 9 is arranged at the rear end of the ten-roller mechanism 7, and the surface density and thickness measuring all-in-one machine 9 can measure the thickness and surface density data of the pole piece 17 after compounding in real time and accurately, providing strong support for quality control in the production process.
[0031] Referring to Figure 1 , Figure 2 In the embodiment of the utility model, the ten-roller mechanism 7 comprises ten rollers 71, and the center axes of the ten rollers 71 are located on the same horizontal plane, which not only improves the stability and precision of the ten-roller mechanism 7, but also makes the process of the ten-roller mechanism 7 more continuous and efficient; nine roller gaps are arranged between the ten rollers, and the widths of the nine roller gaps decrease from both sides to the middle, each roller gap on both sides is used for powder material feeding and film forming, each of the three roller gaps on both sides is used for film thinning, and the roller gap in the middle is used for simultaneously performing double-sided compounding on the electrode film 16 and the current collector 15 on both sides, so as to ensure that the pole piece receives uniform pressure during rolling, thereby improving the uniformity and consistency of the pole piece; hydraulic cylinders 72 are arranged at both ends of the rollers, so as to effectively control the rollers 71 within the pressure range of 3 to 20T, meeting the production requirements of most dry electrode products; a heating device is arranged in each roller 71, and the heating range of the roller is set to 0 to 150 DEG C, so as to adapt to the rolling requirements of different materials.
[0032] Referring to Figure 1 In the embodiment of the utility model, the feeding mechanism 8 includes a weighing hopper 81, a servo screw and a vibrating screen 82, wherein the weighing hopper 81 is used to accurately measure the weight of the dry electrode material powder, the servo screw is connected with the lower end of the weighing hopper 81, the servo screw is connected with the lower end of the weighing hopper 81, the servo screw is responsible for stably conveying the powder to the vibrating screen 82, not only improves the accuracy of feeding, but also ensures the continuity and stability of powder conveying; one end of the vibrating screen 82 is connected with the servo screw, the other end of the vibrating screen 82 is connected with one end of the ten-roller mechanism 7, effectively removes the impurities and uneven particles in the powder, ensures that only the powder meeting the requirements is conveyed to the ten-roller mechanism 7 for compounding, and improves the quality of the pole piece.
[0033] Referring to Figure 1 In the embodiment of the utility model, the winding part further includes a winding tension swing roller 10, a winding tension detection device 11, a winding tape receiving platform 12 and a winding deviation rectifying mechanism 13, the winding tension swing roller 10, the winding tension detection device 11, the winding tape receiving platform 12 and the winding deviation rectifying mechanism 13 are sequentially arranged from front to back at the front end of the winding mechanism 14, and the winding deviation rectifying mechanism 13 is used to center and rectify the compounded pole piece, ensures that the pole piece always maintains the correct position during winding, avoids the winding problem caused by position deviation, and further improves the quality and consistency of the wound product; the winding tension swing roller 10 and the winding tension detection device 11 jointly act on the winding tension control, wherein the winding tension swing roller 10 serves as a mechanical adjusting means and balances the tension through physical swinging, and the winding tension detection device 11 monitors and feeds back the tension data in real time, and the two realize accurate control of the winding tension in combination, the winding tape receiving platform 12 is used for tape receiving during winding, so that the tape receiving process during winding is more convenient and efficient, manual intervention and downtime are reduced, and production efficiency is improved.
[0034] The above is a specific description of the preferred embodiment of the utility model, but the utility model creation is not limited to the described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.
Claims
1. A ten-roll double-sided dry electrode film forming apparatus, characterized by, The application relates to a dry electrode material powder production device, which comprises the following parts: a unwinding part, which comprises a unwinding mechanism (1) for releasing a material roll of a current collector (15); a multi-roller rolling part, which comprises a ten-roller mechanism (7) and two feeding mechanisms (8), the two feeding mechanisms (8) are respectively arranged at two ends of the ten-roller mechanism (7), the feeding mechanisms (8) are used for providing dry electrode material powder, the ten-roller mechanism (7) is used for manufacturing the dry electrode material powder into an electrode film (16), the current collector (15) passes through the middle part of the ten-roller mechanism (7), and the electrode film (16) is arranged on both sides of the current collector (15) to be compounded into a pole piece (17); a winding part, which comprises a winding mechanism (14), the pole piece (17) is connected with the winding mechanism (14), and the winding mechanism (14) is used for collecting the pole piece (17).
2. A ten-roll double-sided dry electrode film forming apparatus according to claim 1, characterized in that: The unwinding mechanism (1) comprises a servo motor, a speed reducer and an air expansion shaft, the material roll of the current collector (15) is fixed on the air expansion shaft, the servo motor is connected with the speed reducer, the air expansion shaft is connected with the speed reducer, and the servo motor is used for driving the material roll of the current collector (15) to rotate for active unwinding.
3. A ten-roll double-sided dry electrode film forming apparatus according to claim 1, characterized in that: The unwinding part further comprises an unwinding deviation rectifying mechanism (2), an unwinding tension detection device (3), an unwinding tape connecting platform (4) and an unwinding tension swing roller (5), the unwinding deviation rectifying mechanism (2), the unwinding tension detection device (3), the unwinding tape connecting platform (4) and the unwinding tension swing roller (5) are sequentially arranged at the rear end of the unwinding mechanism (1), the unwinding deviation rectifying mechanism (2) is used for centering and rectifying the current collector (15), the unwinding tension detection device and the unwinding tension swing roller (5) are used for controlling the unwinding tension of the current collector (15), and the unwinding tape connecting platform (4) is used for connecting the current collector (15).
4. A ten-roll double-sided dry electrode film forming apparatus according to claim 1, characterized in that: The multi-roller rolling part further comprises a process deviation rectifying mechanism (6) and a surface density and thickness integrated machine (9), the process deviation rectifying mechanism is arranged at the front end of the ten-roller mechanism (7), and the surface density and thickness integrated machine (9) is arranged at the rear end of the ten-roller mechanism (7), the process deviation rectifying mechanism (6) is used for rectifying the current collector (15) before compounding, and the surface density and thickness integrated machine (9) is used for measuring the thickness and surface density data of the pole piece (17) after compounding.
5. A ten-roll double-sided dry electrode film forming apparatus according to claim 1, characterized in that: The ten-roller mechanism (7) comprises ten rollers (71), and the center axes of the ten rollers (71) are located on the same horizontal plane.
6. A ten-roll double-sided dry electrode film forming apparatus according to claim 5, characterized in that: Nine roller gaps are arranged between the ten rollers (71), and the widths of the nine roller gaps gradually decrease from both sides to the middle.
7. A ten-roll double-sided dry electrode film forming apparatus according to claim 5, characterized in that: Hydraulic cylinders (72) are arranged at both ends of the rollers (71).
8. A ten-roll double-sided dry electrode film forming apparatus according to claim 5, characterized in that: A heating device is arranged in each roller (71), and the heating range of the roller is set as 0-150 DEG C.
9. A ten-roll double-sided dry electrode film forming apparatus according to claim 1, characterized in that: The feeding mechanism (8) comprises a weighing hopper (81), a servo screw and a vibrating screen (82), the servo screw is connected with the lower end of the weighing hopper (81), one end of the vibrating screen (82) is connected with the servo screw, and the other end of the vibrating screen (82) is connected with one end of the ten-roller mechanism (7).
10. A ten-roll double-sided dry electrode film forming apparatus according to claim 1, characterized in that: The winding part further comprises a winding tension swing roller (10), a winding tension detection device (11), a winding tape receiving platform (12) and a winding deviation correction mechanism (13), the winding tension swing roller (10), the winding tension detection device (11), the winding tape receiving platform (12) and the winding deviation correction mechanism (13) are sequentially arranged from front to back at the front end of the winding mechanism (14), the winding deviation correction mechanism (13) is used for centering and correcting the composite pole piece (17), the winding tension swing roller (10) and the winding tension detection device (11) are used for controlling the winding tension, and the winding tape receiving platform (12) is used for tape receiving during winding.