A multi-roll rolling device
A technology of calendering device and calendering roller, which is applied in the direction of manufacturing tools, metal rolling, metal rolling racks, etc., and can solve the problems of thin lithium film, inability to meet process requirements, and lower quality of lithium film
Active Publication Date: 2019-07-12
CONTEMPORARY AMPEREX TECH CO
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Problems solved by technology
In the prior art, the pressure-applying mechanism is used to apply pressure to the calender roll, and the applied pressure acts on the bearing positions located at both ends of the calender roll. Since the calender roll exerts a large pressure (greater than 3T), the roll surface will produce micro The phenomenon of deformation causes the calendered lithium film to appear thick in the middle and thin at both ends, resulting in a decrease in the quality of the lithium film
If the diameter of the calender roll is increased to meet the rigidity requirement to avoid deformation of the roll surface of the calender roll, the longitudinal arrangement of the lithium film after calendering will be uneven, which cannot meet the process requirements
Method used
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] Such as figure 1 As shown, a multi-roll calendering device provided by a preferred embodiment of the present invention includes a frame (not labeled), on which a feeding mechanism (not shown), a roller mechanism, a pressing mechanism 7, a fine-tuning Gap mechanism 8 and color mark sensor 9. Wherein, the roller mechanism includes four rollers arranged in parallel, which are respectively the first pressing roller 3, the second pressing roller 4, the first calendering roller 5 and the second calendering roller 6, the first calendering roller 5 and the second calendering roller. The calenderin...
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Abstract
Disclosed is a calendering apparatus with multiple rollers, the calendering apparatus comprising a pressurizing mechanism (7), a clearance fine-adjustment mechanism (8), a first pressurizing roller (3), a second pressurizing roller (4), and a first calendering roller (5) and a second calendering roller (6) located between the first pressurizing roller (3) and the second pressurizing roller (4). The first pressurizing roller (3) drives the first calendering roller (5) to rotate, the second pressurizing roller (4) drives the second calendering roller (6) to rotate, the pressurizing mechanism (7) pressurizes the first pressurizing roller (3), and the clearance fine-adjustment mechanism (8) is located between the first pressurizing roller (3) and the second pressurizing roller (4) and is used to adjust the operating clearance between the first calendering roller (5) and the second calendering roller (6), and then materials are calendered within the clearance for forming. The pressure from the pressurizing mechanism acts on the pressurizing roller, and the calendering roller is uniformly stressed in the longitudinal direction by the pressurizing roller, thereby avoiding the defect of the longitudinal arrangement of a lithium membrane being uneven due to the calendering roller being oversized and the defect of the thickness of the lithium membrane being uneven due to the deformation of the calendering roller.
Description
technical field [0001] The invention relates to the field of calenders, in particular to a multi-roller calendering device. Background technique [0002] In the battery production process, the lithium-replenishment process of lithium-ion battery pole pieces is the key technology to improve the capacity of lithium-ion batteries. The key to the lithium-replenishment process lies in pressing and coating. A process in which the tape is rolled into a lithium film and attached to the traction film. In the prior art, the pressure-applying mechanism is used to apply pressure to the calender roll, and the applied pressure acts on the bearing positions located at both ends of the calender roll. Since the calender roll exerts a large pressure (greater than 3T), the roll surface will produce micro The phenomenon of deformation causes the calendered lithium film to appear thick in the middle and thin at both ends, resulting in a decrease in the quality of the lithium film. If the diame...
Claims
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IPC IPC(8): B21B1/40B21B13/06
CPCB21B1/40B21B13/06
Inventor 张祥领
Owner CONTEMPORARY AMPEREX TECH CO