A powder calendering mechanism and pole piece production equipment
By using a powder calendering mechanism to directly transfer dry electrode powder onto the electrode surface to form a coating, the problem of drying required in existing equipment is solved, and efficient and low-cost electrode production is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁德嘉拓智能设备有限公司
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-12
AI Technical Summary
Existing electrode production equipment requires oven heating and drying, resulting in high energy consumption, long production time, low efficiency, and high cost.
A powder calendering mechanism is used to transfer dry electrode powder to the surface of the electrode sheet to form a coating through a first calendering roller, a second calendering roller, a third calendering roller, and a drive assembly, eliminating the need for a drying step.
It reduces energy consumption, shortens production time, improves production efficiency, lowers costs, and simplifies equipment structure and floor space.
Smart Images
Figure CN224348467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery production technology, specifically to a powder calendering mechanism and electrode production equipment. Background Technology
[0002] Existing electrode production equipment generally includes an unwinding mechanism, a coating mechanism, an oven, and a winding mechanism arranged sequentially along the electrode's travel path. During operation, the electrode is first unwound by the unwinding mechanism, and then the electrode paste is coated onto one side of the electrode by the coating mechanism to form a coating layer. This coating layer can increase the energy density of the electrode. Since the electrode paste is wet, the electrode is wet at this time. Then, the electrode is heated and dried in the oven to remove excess moisture from the electrode. Finally, the electrode is wound up by the winding mechanism.
[0003] In the above structure, the need to set up an oven to heat and dry the electrode sheets results in high energy consumption and long production time, which reduces production efficiency and increases production costs. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a powder calendering mechanism and electrode production equipment, which reduces energy consumption, reduces production time, improves production efficiency, and reduces production costs.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] The first aspect of this utility model provides a powder calendering mechanism, including a mounting frame, a first calendering roll, a second calendering roll, a third calendering roll, a first calendering drive assembly, a second calendering drive assembly, a third calendering drive assembly, and a trough assembly. The mounting frame has a top opening and a bottom opening, respectively. The first calendering roll and the second calendering roll are sequentially arranged within the mounting frame along its length, and a first calendering gap exists between their roll surfaces. The first calendering drive assembly drives the first calendering roll to rotate, and the second calendering drive assembly drives the second calendering roll to rotate. The third calendering roll... The third calender roll is disposed within the mounting frame and located on one side of the top of the first calender roll surface. The radius of the third calender roll is smaller than that of the first calender roll, and a second calendering gap exists between the roll surfaces of the third calender roll and the first calender roll. The third calendering drive assembly is used to drive the third calender roll to rotate. The feed trough assembly is disposed between the top of the roll surfaces of the third calender roll and the first calender roll. The bottom end of the feed trough assembly mates with the roll surface of the first calender roll, and one side of the feed trough assembly mates with the roll surface of the third calender roll. The feed trough assembly has a feed trough, and the feed trough communicates with the second calendering gap.
[0007] As a preferred technical solution, the system further includes a frame, a first back roll, a second back roll, and a back roll drive assembly. The mounting frame is disposed at the top of the frame, and the top of the frame has a frame opening communicating with the bottom opening. One end of the frame has a side opening. The first back roll and the second back roll are respectively disposed within the mounting frame. The first calendering roll is located between the first back roll and the second calendering roll. The first back roll is located between the second back roll and the first calendering roll. The radius of the first back roll is smaller than the radius of the second back roll. The roll surface of the first back roll is in contact with the roll surface of the first calendering roll, and the roll surface of the second back roll is in contact with the roll surface of the first back roll. The back roll drive assembly is used to drive the first back roll to rotate.
[0008] As a preferred technical solution, the mounting frame has two mounting positions on each side. Two first calendering bearing seats are rotatably fitted onto both ends of the first calendering roll, and the two first calendering bearing seats are fixedly installed in the two mounting positions. Two second calendering bearing seats are rotatably fitted onto both ends of the second calendering roll, and the two second calendering bearing seats are slidably installed in the two mounting positions. Two first back roll bearing seats are rotatably fitted onto both ends of the first back roll, and the two first back roll bearing seats are slidably installed in the two mounting positions. The ends of the two second back roll bearing seats closest to the first back roll are respectively connected to the two first calendering bearing seats. The two second back roll bearing seats are in contact with each other at the ends away from the first calendering roll. The assembly also includes a first pressure driving component and a second pressure driving component. The first pressure driving component includes a first pressure driving member, which is disposed at one end of the mounting frame. Two second back roll bearing seats have a first connecting block at the ends away from the first back roll. The output end of the first pressure driving member passes through a first hole at one end of the mounting frame and connects to the first connecting block. The second pressure driving component includes a second pressure driving member, which is disposed at the other end of the mounting frame. Two second calendering roll bearing seats have a second connecting block at the ends away from the first calendering roll. The output end of the second pressure driving member passes through a second hole at the other end of the mounting frame and connects to the second connecting block.
[0009] As a preferred technical solution, the two ends of the third calender roll are rotatably mounted on two gap adjustment components, which are arranged opposite to each other. Two support plates are provided on the inner walls of the two sides of the top opening, and the support plates protrude from the top of the mounting frame. The two gap adjustment components are connected to the top of the two support plates respectively, and the two gap adjustment components are used to drive the third calender roll to move towards or away from the first calender roll.
[0010] As a preferred technical solution, the gap adjustment assembly includes an adjustment plate, a lower fixed seat, a lifting slide, and an upper fixed seat. The two ends of the third calender roll are rotatably mounted on the adjustment plates of the two gap adjustment assemblies. The lower fixed seat and the upper fixed seat are located above the third calender roll and are both parallel to the second calender gap. The lower fixed seat is located at the top of the adjustment plate, the lifting slide is located at the top of the lower fixed seat, and the upper fixed seat is located at the top of the lifting slide. The upper fixed seats of the two gap adjustment assemblies are respectively connected to the tops of the two support plates.
[0011] As a preferred technical solution, the material trough assembly includes a first partition, two second partitions, and two adjusting limiters. The two second partitions are spaced apart along the width direction of the mounting frame. The bottom ends of both second partitions mate with the roll surface of the first calendering roll, and the sides of both second partitions near the third calendering roll mate with the roll surface of the third calendering roll. The top of each second partition has a partition groove, and the first partition mates with the partition groove. There is a gap between the bottom end of the first partition and the roll surface of the first calendering roll. Two support plates are respectively provided on the inner walls of the two sides of the top opening. The two ends of the first partition are respectively connected to the inner sides of the two support plates. The two adjusting limiters correspond to the two second partitions respectively. The adjusting limiters are disposed on the first partition and the corresponding second partition. The material trough is formed between the first partition, the two second partitions, and the two adjusting limiters.
[0012] As a preferred technical solution, the adjusting limiting member is detachably mounted on the first partition and the corresponding second partition; the bottom end of the adjusting limiting member is provided with a first limiting groove and two opposing second limiting grooves, the first limiting groove cooperates with the first partition, the two second limiting grooves are connected to the first limiting groove, and the two second limiting grooves cooperate with the corresponding second partitions respectively; the adjusting limiting member is provided with a mounting hole, the mounting hole penetrates the first limiting groove, and two opposing mounting fasteners are installed in the mounting hole, the heads of the two mounting fasteners abutting against the two sides of the first partition respectively.
[0013] As a preferred technical solution, the two ends of the first partition are slidably connected to the inner sides of the two support plates, and the inner sides of the two support plates are respectively provided with two support seats. The support seats are located above the first partition, and the two support seats are respectively provided with two mounting grooves on the side that is close to each other. Two adjusting screws pass through the two mounting grooves and are threadedly connected to the two threaded holes at the top of the first partition. The two adjusting screws can rotate relative to the two support seats respectively. Two limiting blocks are respectively fitted on the outer periphery of the two adjusting screws. The two limiting blocks are respectively in contact with the bottom ends of the two support seats. The heads of the two adjusting screws are respectively located above the two support seats and are respectively in contact with the top ends of the two support seats.
[0014] As a preferred technical solution, both the first and second calendering drive assemblies include a first calendering motor and a first calendering reducer. The first calendering reducer is disposed at the top of a support frame, which is located on one side of the frame. The first calendering motor is mounted on the first calendering reducer, and its output end is connected to the input end of the first calendering reducer. The output end of the first calendering reducer in the first calendering drive assembly is connected to one end of the first calendering roll, and the output end of the first calendering reducer in the second calendering drive assembly is connected to one end of the second calendering roll. The third calendering drive assembly includes a second calendering motor, a second calendering reducer, and a transmission rod. The second calendering reducer is disposed on one side of the mounting frame, the second calendering motor is disposed on the second calendering reducer, the output end of the second calendering motor is connected to the input end of the second calendering reducer, the output end of the second calendering reducer is connected to one end of the transmission rod, and the other end of the transmission rod extends into the mounting frame and is connected to one end of the third calendering roll; the back roll drive assembly includes a back roll motor and a back roll reducer, the back roll reducer is disposed at the top of the support frame, the back roll motor is disposed on the back roll reducer, the output end of the back roll motor is connected to the input end of the back roll reducer, and the output end of the back roll reducer is connected to one end of the first back roll.
[0015] The second aspect of this utility model provides an electrode production equipment, including an unwinding mechanism and a winding mechanism, characterized in that it further includes the powder calendering mechanism described in the above technical solution, wherein the powder calendering mechanism is disposed between the unwinding mechanism and the winding mechanism along the travel path of the electrode.
[0016] The beneficial effects of this utility model are as follows: By setting a first calendering roller, a second calendering roller, a third calendering roller, a first calendering drive assembly, a second calendering drive assembly, and a third calendering drive assembly, this utility model can transfer electrode powder to one side of the electrode sheet to form a coating. Since the electrode powder is dry, after the electrode powder is transferred to one side of the electrode sheet to form a coating through the powder calendering mechanism of this utility model, the electrode sheet is dry. Therefore, it is not necessary to heat and dry the electrode sheet in an oven, which reduces energy consumption, reduces production time, improves production efficiency, reduces production costs, simplifies the structure of the equipment, and reduces the floor space occupied by the equipment. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the structure of a powder calendering mechanism at a first angle according to an embodiment of the present invention;
[0019] Figure 2 yes Figure 1 A schematic diagram of the powder calendering mechanism at the second angle is shown.
[0020] Figure 3 yes Figure 1 The diagram shows a front view of the powder calendering mechanism.
[0021] Figure 4 yes Figure 1 A cross-sectional schematic diagram of the powder calendering mechanism shown;
[0022] Figure 5 yes Figure 1 The diagram shows the structure of the powder calendering mechanism, including the frame, mounting frame, first calendering roll, second calendering roll, third calendering roll, first calendering drive assembly, second calendering drive assembly, third calendering drive assembly, two gap adjustment assemblies, trough assembly, first back roll, second back roll, back roll drive assembly, first pressure drive assembly, second pressure drive assembly, and through roll.
[0023] Figure 6 yes Figure 1 The diagram shows the structure of the powder calendering mechanism, including the first calendering roll, the second calendering roll, the third calendering roll, the first calendering drive assembly, the second calendering drive assembly, the third calendering drive assembly, two gap adjustment assemblies, the feed trough assembly, the first back roll, the second back roll, the back roll drive assembly, the first pressure drive assembly, and the second pressure drive assembly at a first angle.
[0024] Figure 7 yes Figure 6The diagram shows the structure of the first calendering roll, the second calendering roll, the third calendering roll, the first calendering drive assembly, the second calendering drive assembly, the third calendering drive assembly, two gap adjustment assemblies, the feed trough assembly, the first back roll, the second back roll, the back roll drive assembly, the first pressure drive assembly, and the second pressure drive assembly at a second angle.
[0025] Figure 8 yes Figure 1 The diagram shows the structure of the first calendering roller, the first calendering drive assembly, the third calendering roller, the two gap adjustment assemblies, and the feed trough assembly of the powder calendering mechanism.
[0026] Figure 9 yes Figure 8 The diagram shows the structure of the two gap adjustment components and the trough assembly at the first angle.
[0027] Figure 10 yes Figure 9 The diagram shows the structure of the two gap adjustment components and the trough assembly at the second angle.
[0028] Figure 11 yes Figure 9 An exploded view of the first partition, two second partitions, and two adjusting limiters of the feed trough assembly shown.
[0029] Figure labels;
[0030] 10. Rack; 11. Rack opening;
[0031] 20. Mounting bracket; 21. Top opening; 22. Bottom opening; 23. Mounting position; 231. First lower slide rail; 232. First lower slider; 233. First upper slide rail; 234. First upper slider; 235. Second lower slide rail; 236a. Second lower slider; 236b. Third lower slider; 237. Second upper slide rail; 238a. Second upper slider; 238b. Third upper slider; 26. Support plate;
[0032] 30. First calendering roll; 31. First calendering bearing housing;
[0033] 40. Second calendering roll; 41. Second calendering bearing seat; 42. Second connecting block;
[0034] 50. Third calendering roll;
[0035] 60. First calendering drive assembly; 61. First calendering motor; 62. First calendering reducer; 63. First reducer base;
[0036] 70. Third calendering drive assembly; 71. Second calendering motor; 72. Second calendering reducer; 73. Second reducer base; 74. Transmission rod;
[0037] 80. First back roller; 81. First back roller bearing housing;
[0038] 90. Second back roller; 91. Second back roller bearing housing; 92. First connecting block;
[0039] 100. Back roller drive assembly; 1001. Back roller motor; 1002. Back roller reducer; 1003. Back roller reducer base;
[0040] 110. First pressure-applying drive assembly; 1101. First pressure-applying drive element;
[0041] 120. Second pressure driving assembly; 1201. Second pressure driving element;
[0042] 130. Gap adjustment assembly; 1301. Adjustment plate; 1302. Lower fixed seat; 1303. Lifting slide; 1304. Upper fixed seat; 1305. Calendering fixed seat;
[0043] 140. Feed trough assembly; 1401. Feed trough; 1402. First partition; 1403. Second partition; 14031. Partition groove; 14032. First arc surface; 14033. Second arc surface; 1404. Adjusting limit component; 14041. First limiting groove; 14042. Second limiting groove; 14043. Mounting hole; 14044. Mounting fastener; 1405. Support base; 14051. Mounting slot; 1406. Adjusting screw; 14061. Head of adjusting screw; 1407. Limiting block;
[0044] 150. Roller; 1501. U-shaped seat;
[0045] 160. Support frame; 200. Electrode sheet. Detailed Implementation
[0046] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0047] Please refer to Figures 1 to 4An embodiment of the present invention provides a powder calendering mechanism, including a frame 10, a mounting frame 20 disposed at the top of the frame 10, a first calendering roller 30, a second calendering roller 40, a third calendering roller 50, a first calendering drive assembly 60, a second calendering drive assembly (not shown in the figure), a third calendering drive assembly 70, and a feed trough assembly 140.
[0048] The mounting frame 20 has a top opening 21 and a bottom opening 22 at its top and bottom ends, respectively, which communicate with the interior of the mounting frame 20. The frame 10 has a frame opening 11 at its top, which communicates with the bottom opening 22 and the interior of the frame 10. One end of the frame 10, for example, the right end, has a side opening that communicates with the interior of the frame 10. The top opening 21, bottom opening 22, frame opening 11, and side opening are all used for the electrode sheet 200 to pass through. The first calendering roll 30 and the second calendering roll 40 are arranged sequentially from left to right within the mounting frame 20 along its length, with a first calendering gap between their roll surfaces. The first calendering drive assembly 60 drives the first calendering roll 30 to rotate. The second calendering drive assembly drives the second calendering roll 40 to rotate. In this embodiment, the radius of the first calendering roll 30 and the radius of the second calendering roll 40 are equal. The third calendering roll 50 is disposed within the mounting frame 20 and located on one side of the top of the roll surface of the first calendering roll 30, for example, to the left of the top of the roll surface of the first calendering roll 30. The third calendering roll 50 is close to the top opening 21. In this embodiment, the angle between the line connecting the center of the first calendering roll 30 and the top of the roll surface of the first calendering roll 30 and the line connecting the center of the first calendering roll 30 and the center of the third calendering roll 50 is preferably 30 degrees, but it can be understood that other angles are also possible. The radius of the third calendering roll 50 is smaller than the radius of the first calendering roll 30, and there is a second calendering gap between the roll surface of the third calendering roll 50 and the roll surface of the first calendering roll 30. The third calendering drive assembly 70 is used to drive the third calendering roll 50 to rotate. The feed trough assembly 140 is disposed between the top of the roll surface of the third calendering roll 50 and the first calendering roll 30. The bottom end of the feed trough assembly 140 is engaged with the roll surface of the first calendering roll 30, and one side of the feed trough assembly 140 is engaged with the roll surface of the third calendering roll 50. The feed trough assembly 140 is provided with a feed trough 1401, which is connected to the second calendering gap.
[0049] During operation, the first calendering drive assembly 60 drives the first calendering roll 30 to rotate, the second calendering drive assembly drives the second calendering roll 40 to rotate, and the third calendering drive assembly 70 drives the third calendering roll 50 to rotate. The rotation direction of the first calendering roll 30 is opposite to that of the third calendering roll 50 and the second calendering roll 40. For example, the first calendering roll 30 rotates counterclockwise, while the third calendering roll 50 and the second calendering roll 40 rotate clockwise, creating a speed difference between the first calendering roll 30 and the third calendering roll 50. Then, the electrode powder is placed in the feed trough 1401. Driven by the rotation of the first calendering roll 30, the electrode powder moves towards the second calendering gap. When the electrode powder reaches the second calendering gap, it is calendered by the third calendering roll 50 and the first calendering roll 30. Since the radius of the third calendering roll 50 is smaller than that of the first calendering roll 30, the electrode powder is calendered. The radius of the first calendering roll 30 is equal to the speed difference between the third calendering roll 50 and the first calendering roll 30. Under the calendering of the third calendering roll 50 and the first calendering roll 30, the electrode powder can be attached to the roll surface of the first calendering roll 30. When the electrode sheet 200, after being unwound by the unwinding mechanism, enters the first calendering gap from above through the top opening 21, the electrode sheet 200 can be calendered by the first calendering roll 30 and the second calendering roll 40. In this way, the electrode powder attached to the roll surface of the first calendering roll 30 can be transferred to one side of the electrode sheet 200, thereby forming a coating on one side of the electrode sheet 200. Then the electrode sheet 200 comes out from the first calendering gap, passes through the bottom opening 22 and the frame opening 11 and enters the frame 10. Then it passes through the side opening at one end of the frame 10 and is finally wound up by the winding mechanism. In this way, the production of the electrode sheet 200 is completed.
[0050] This invention, through the arrangement of a first calendering roller 30, a second calendering roller 40, a third calendering roller 50, a first calendering drive assembly 60, a second calendering drive assembly, and a third calendering drive assembly 70, can transfer electrode powder onto one side of the electrode sheet 200 to form a coating. Since the electrode powder is dry, after the electrode powder is transferred to one side of the electrode sheet 200 to form a coating through the powder calendering mechanism of this invention, the electrode sheet 200 is dry. Therefore, it is not necessary to heat and dry the electrode sheet 200 in an oven, which reduces energy consumption, reduces production time, improves production efficiency, reduces production costs, simplifies the structure of the equipment, and reduces the footprint of the equipment.
[0051] Furthermore, this utility model also includes a first back roll 80, a second back roll 90, and a back roll drive assembly 100. The first back roll 80 and the second back roll 90 are respectively disposed within the mounting frame 20. A first calendering roll 30 is located between the first back roll 80 and the second calendering roll 40. The first back roll 80 is located between the second back roll 90 and the first calendering roll 30. The radius of the first back roll 80 is smaller than the radius of the second back roll 90. The roll surface of the first back roll 80 is in contact with the roll surface of the first calendering roll 30, and the roll surface of the second back roll 90 is in contact with the roll surface of the first back roll 80. The back roll drive assembly 100 is used to drive the first back roll 80 to rotate. In practical applications, the rotation direction of the first back roller 80 is opposite to that of the first calendering roller 30. The rotation of the first back roller 80 can drive the second back roller 90 to rotate synchronously in the opposite direction. The first back roller 80 can provide support for the first calendering roller 30, thereby preventing the roller surface of the first calendering roller 30 from arc-shaped deformation. The second back roller 90 can provide support for the first back roller 80, thereby preventing the first back roller from arc-shaped deformation. This ensures the uniformity of the pressure applied to the electrode sheet 200 during calendering, resulting in better consistency of the electrode sheet 200.
[0052] Combination Figures 5 to 8 As shown, in this embodiment, the mounting frame 20 has two mounting positions 23 on each side, and the mounting positions 23 are connected to the interior of the mounting frame 20. Two first calendering bearing seats 31 are rotatably fitted at both ends of the first calendering roll 30, and the two first calendering bearing seats 31 are fixedly installed in the two mounting positions 23, providing rotational support for the first calendering roll 30. Two second calendering bearing seats 41 are rotatably fitted at both ends of the second calendering roll 40, and the two second calendering bearing seats 41 are slidably installed in the two mounting positions 23, providing rotational support for the second calendering roll 40. Two first back roll bearing seats 81 are rotatably fitted at both ends of the first back roll 80, and the two first back roll bearing seats 81 are slidably installed in the two mounting positions 23, providing rotational support for the first back roll 80. Two second back roller bearing seats 91 are rotatably sleeved at both ends of the second back roller 90. The two second back roller bearing seats 91 are slidably disposed in the two mounting positions 23. The ends of the two second back roller bearing seats 91 that are closer to the first back roller 80 are in contact with the ends of the two first back roller bearing seats 81 that are farther away from the first calendering roller 30. The two second back roller bearing seats 91 can provide rotational support for the second back roller 90.
[0053] The bottom and top ends of the first rolling bearing seat 31 are fixedly installed in the bottom and top of the corresponding mounting positions 23, respectively. The bottom and top of the mounting positions 23 are respectively provided with a first lower slide rail 231 and a first upper slide rail 233 corresponding to the corresponding second rolling bearing seat 41. The first lower slide rail 231 is slidably engaged with a first lower slide block 232, and the first upper slide rail 233 is slidably engaged with a first upper slide block 234. The first lower slide block 232 and the first upper slide block 234 are respectively installed at the bottom and top of the corresponding second rolling bearing seat 41. The bottom and top of the mounting position 23 are respectively provided with a second lower slide rail 235 and a second upper slide rail 237 corresponding to the corresponding first back roller bearing seat 81 and second back roller bearing seat 91. The second lower slide rail 235 is slidably fitted with a second lower slide block 236a and a third lower slide block 236b, and the second upper slide rail 237 is slidably fitted with a second upper slide block 238a and a third upper slide block 238b. The second lower slide block 236a and the second upper slide block 238a are respectively located at the bottom and top of the corresponding first back roller bearing seat 81, and the third lower slide block 236b and the third upper slide block 238b are respectively located at the bottom and top of the corresponding second back roller bearing seat 91. The number of the first lower slide block 232, the first upper slide block 233, the second lower slide block 236a, the second upper slide block 238a, the third lower slide block 236b, and the third upper slide block 238b can be set according to the actual situation.
[0054] Both the first calendering drive assembly 60 and the second calendering drive assembly include a first calendering motor 61 and a first calendering reducer 62. The first calendering reducer 62 is mounted on the top of a support frame 160 via a first reducer base 63. The support frame 160 is located on one side of the frame 10, for example, behind the frame 10. The first calendering motor 61 is mounted on the first calendering reducer 62, and its output end is connected to the input end of the first calendering reducer 62. The output end of the first calendering reducer 62 in the first calendering drive assembly 60 is connected to one end of the first calendering roll 30 via, for example, a universal coupling. The output end of the first calendering reducer 62 in the second calendering drive assembly is connected to one end of the second calendering roll 40 via, for example, a universal coupling. The first calendering motor 61 drives the corresponding large calendering roll to rotate via the first calendering reducer 62.
[0055] The third calendering drive assembly includes a second calendering motor 71, a second calendering reducer 72, and a transmission rod 74. The second calendering reducer 72 is mounted on one side of the mounting frame 20 via a second reducer base 73. The second calendering motor 71 is mounted on the second calendering reducer 72, with its output end connected to the input end of the second calendering reducer 72. The output end of the second calendering reducer 72 is connected to one end of the transmission rod 74 via, for example, a universal coupling. The other end of the transmission rod 74 extends into the mounting frame 20 through a through hole on one side of the mounting frame 20 and is connected to one end of the third calendering roll 50. The second calendering motor 71 drives the third calendering roll 50 to rotate via the second calendering reducer 72 and the transmission rod 74.
[0056] The back roller drive assembly 100 includes a back roller motor 1001 and a back roller reducer 1002. The back roller reducer 1002 is mounted on the top of the support frame 160 via a back roller reducer base 1003. The back roller motor 1001 is mounted on the back roller reducer 1002, and the output end of the back roller motor 1001 is connected to the input end of the back roller reducer 1002. The output end of the back roller reducer 1002 is connected to one end of the first back roller 80 via, for example, a universal coupling. The back roller motor 1001 drives the first back roller 80 to rotate via the back roller reducer 1002.
[0057] Furthermore, this utility model also includes a first pressure driving assembly 110 and a second pressure driving assembly 120. The first pressure driving assembly 110 includes a first pressure driving member 1101, which is disposed at one end of the mounting frame 20. The ends of the two second back roller bearing seats 91 away from the first back roller 80 are provided with a first connecting block 92. The output end of the first pressure driving member 1101 passes through a first hole at one end of the mounting frame 20 and is connected to the first connecting block 92. The first pressure driving member 1101 drives the first connecting block 92 to move toward the first calendering roller 30, thereby applying pressure to the first connecting block 92 and the two second back roller bearing seats 91, thereby applying pressure to the first calendering roller 30 through the second back roller 90 and the first back roller 80. The second pressure driving assembly 120 includes a second pressure driving member 1201, which is disposed at the other end of the mounting frame 20. A second connecting block 42 is provided at the end of the two second calender bearing seats 41 away from the first calender roll 30. The output end of the second pressure driving member 1201 passes through the second hole at the other end of the mounting frame 20 and is connected to the second connecting block 42. The second connecting block 42 is driven to move closer to the first calender roll 30 by the second pressure driving member 1201, thereby applying pressure to the second connecting block 42 and the two second calender bearings 41, thereby applying pressure to the second calender roll 40. By applying pressure to the first calender roll 30 and the second calender roll 40, pressure can be provided for calendering the electrode sheet 200.
[0058] In this embodiment, there are two first pressure-applying drive members 1101 and two second pressure-applying drive members 1201. The two first pressure-applying drive members 1101 and the two second pressure-applying drive members 1201 are arranged at a distance from each other along the width direction of the mounting bracket 20. The number of first holes corresponds to the number of first pressure-applying drive members 1101, and the number of second holes corresponds to the number of second pressure-applying drive members 1201. Understandably, the number of first pressure-applying drive members 1101 and second pressure-applying drive members 1201 can be set according to actual conditions. Both the first pressure-applying drive members 1101 and the second pressure-applying drive members 1201 are hydraulic cylinders.
[0059] Combination Figures 8 to 11 As shown, the two ends of the third calendering roll 50 are rotatably mounted on two gap adjustment components 130, which are arranged opposite to each other. Two support plates 26 are respectively provided on the inner walls of the two sides of the top opening 21. Part of the support plate 26 extends into the mounting frame 20, and part of the support plate 26 protrudes from the top of the mounting frame 20. The two gap adjustment components 130 are respectively connected to the top of the two support plates 26. The two gap adjustment components 130 are used to drive the third calendering roll 50 to move towards or away from the first calendering roll 30, thereby realizing the adjustment of the width of the second calendering gap.
[0060] The gap adjustment assembly 130 includes an adjustment plate 1301, a lower fixed seat 1302, a lifting slide 1303, and an upper fixed seat 1304. The two ends of the third calender roll 50 are rotatably mounted on the adjustment plates 1301 of the two gap adjustment assemblies 130. Specifically, the adjustment plate 1301 has a first mounting hole, and a calender fixing seat 1305 is provided on the side of the adjustment plate 1301 away from the center of the third calender roll 50. The calender fixing seat 1305 has a second mounting hole communicating with the first mounting hole. The two ends of the third calender roll 50 pass through the first mounting holes of the two gap adjustment assemblies 130 and are rotatably mounted in the second mounting holes of the two gap adjustment assemblies 130. Rotary bearings are provided in the second mounting holes, and the rotary bearings of the two gap adjustment assemblies 130 are respectively sleeved on the outer periphery of the two ends of the third calender roll 50, providing rotational support for the third calender roll 50. The lower fixed seat 1302 and the upper fixed seat 1304 are sequentially located above the third calendering roller 50 and are both parallel to the second calendering gap. In this embodiment, both the lower fixed seat 1302 and the upper fixed seat 1304 are inclined upwards along the direction close to the second calendering roller 40. The angle between the lower fixed seat 1302 and the upper fixed seat 1304 and the horizontal line is 30 degrees. The lower fixed seat 1302 is located at the top of the adjusting plate 1301, and the lifting slide 1303 is located at the top of the lower fixed seat 1302. The lifting slide 1303 is an existing manual lifting slide, and its structure and working principle will not be described in detail here. The lifting slide 1303 protrudes from the top of the mounting frame 20. The upper fixed seat 1304 is located above the mounting frame 20 and is located at the top of the lifting slide 1303. The upper fixed seats 1304 of the two gap adjusting components 130 are respectively connected to the tops of the two support plates 26. The lifting slides 1303 of the two gap adjustment components 130 drive the corresponding lower fixed seat 1302 and adjustment plate 1301 to move toward or away from the first calendering roll 30, thereby driving the third calendering roll 50 to move toward or away from the first calendering roll 30.
[0061] In this embodiment, the adjusting plate 1301 and the lower fixing seat 1302 are preferably integrally formed, which facilitates manufacturing.
[0062] The feed trough assembly 140 includes a first partition 1402, two second partitions 1403, and two adjusting and limiting members 1404. The two second partitions 1403 are spaced back-to-back along the width direction of the mounting frame 20. The bottom ends of both second partitions 1403 mate with the surface of the first calendering roll 30, and the sides of both second partitions 1403 near the third calendering roll 50 mate with the surface of the third calendering roll 50. In this embodiment, the bottom end of the second partition 1403 has a first arc surface 14032, which mates with the surface of the first calendering roll 30. The side of the second partition 1403 near the third calendering roll 50 has a second arc surface 14033, which mates with the surface of the third calendering roll 50. The top end of the second partition 1403 has a partition groove 14031, which mates with the first partition 1402. There is a gap between the bottom end of the first partition plate 1402 and the roll surface of the first calendering roll 30. Two support plates 26 are respectively provided on the inner walls of the two sides of the top opening 21. The two ends of the first partition plate 26 are respectively connected to the inner sides of the two support plates 26. The adjusting limit member 1404 is cross-shaped. The two adjusting limit members 1404 correspond to the two second partition plates 1403 respectively. The adjusting limit members 1404 are set on the first partition plate 1402 and the corresponding second partition plate 1403. The material trough 1401 is formed between the first partition plate 1402, the two second partition plates 1403 and the two adjusting limit members 1404.
[0063] In this embodiment, the adjusting limiting member 1404 is detachably mounted on the first partition 1402 and the corresponding second partition 1403. Specifically, the bottom end of the adjusting limiting member 1404 is provided with a first limiting groove 14041 and two second limiting grooves 14042 arranged opposite each other. The second limiting grooves 14042 are perpendicular to the first limiting groove 14041, and both second limiting grooves 14042 communicate with the first limiting groove 14041. The depth of the second limiting grooves 14042 is less than the depth of the first limiting groove 14041. The two second limiting grooves 1402 respectively cooperate with the corresponding second partitions 1403. The adjusting limiting member 1404 is provided with mounting holes 14043, which penetrate the first limiting groove 14041 and are threaded holes. Two mounting fasteners 14044, such as set screws, are installed in the mounting holes 14043 in a relatively opposite manner. The heads of the two mounting fasteners 14044 abut against the two sides of the first partition 1402, thereby fixing the adjusting limiting member 1404 and the first partition 1402 together. In this embodiment, there are two mounting holes 14043, and the second limiting grooves 14042 are located between the two mounting holes 14043. It can be understood that the number of mounting holes 14043 can be set according to the actual situation.
[0064] The structure described above allows for adjustment of the length of the feed trough 1401, thus accommodating electrode sheets 200 of different widths and having a wide range of applications. For example, when it is necessary to increase the length of the material trough 1401, first tighten the fastener 14044 so that the head of the fastener 14044 separates from the corresponding side of the first partition 1402. Then, the adjusting limiter 1404 located in front and the second partition 1403 located in front are moved together along the first partition 1402 in a direction away from the center of the first partition 1402, i.e., moved forward to a predetermined position. Then, the adjusting limiter 1404 located in the rear and the second partition 1402 located in the rear are moved together along the first partition 1402 in a direction away from the center of the first partition 1402, i.e., moved backward to a predetermined position. In this way, the distance between the two second partitions 1403 is increased, and the length of the material trough 14 is increased. Then, tighten the fastener 14044 so that the head of the fastener 14044 abuts against the corresponding side of the first partition 1402. When it is necessary to reduce the length of the trough 1401, first tighten the fastener 14044 so that the head of the fastener 14044 separates from the corresponding side of the first partition 1402. Then, the front adjusting limiter 1404 and the front second partition 1403 move together along the first partition 1402 toward the center of the first partition 1402, i.e., move backward to a predetermined position. Then, the rear adjusting limiter 1404 and the rear second partition 1403 move together along the first partition 1402 toward the center of the first partition 1402, i.e., move forward to a predetermined position. In this way, the distance between the two second partitions 1403 is reduced, and the length of the trough 1401 is reduced. Then, tighten the fastener 14044 so that the head of the fastener 14044 abuts against the corresponding side of the first partition 1402.
[0065] Furthermore, both ends of the first partition 1402 are slidably connected to the inner sides of the two support plates 26 via conventional slide rails and sliders that slidably engage with the slide rails. The inner sides of the two support plates 26 are each provided with a support seat 1405, located above the first partition 1402. Two mounting grooves 14051 are provided on the adjacent sides of the two support seats 1405. Two adjusting screws 1406 pass through the two mounting grooves 14051 and are threadedly connected to two threaded holes at the top of the first partition 1402. The two adjusting screws 1406 can rotate relative to the two support seats 1405. Two limiting blocks 1407 are respectively fitted around the outer periphery of the two adjusting screws 1406. The two limiting blocks 1407 are in contact with the bottom ends of the two support seats 1405 respectively. The heads 14061 of the two adjusting screws 1406 are located above the two support seats 1405 and are in contact with the top ends of the two support seats 1405 respectively. The adjusting screws 1406 can be limited by the limiting blocks 1407 and the heads 14061 of the adjusting screws 1406. By rotating the heads 14061 of the two adjusting screws 1406 clockwise or counterclockwise, the two adjusting screws 1406 can drive the first partition 1402 to move up and down relative to the two support plates 26. The up and down movement of the first partition 1402 can drive the two adjusting limit members 1404 to move up and down. When the first partition 1402 drives the two adjusting limit members 1404 to move upward, the top of the first partition 1402 and the roll surface of the first calendering roll 30 are at this time... As the distance increases, the depth of the feed trough 1401 becomes deeper. When the first partition 1402 drives the two adjusting limiters 1404 to move downward, the distance between the top of the first partition 1402 and the surface of the first calendering roll 30 decreases, thus making the depth of the feed trough 1401 shallower. This allows for adjustment of the depth of the feed trough 1401. By adjusting the depth of the feed trough 1401, the height of the electrode powder placed in the feed trough 1401 can be controlled, facilitating the smooth entry of the electrode powder into the second calendering gap and preventing material blockage.
[0066] Furthermore, the present invention also includes a guide roller 150, which is disposed inside the frame 10 and located below the first calendering gap. After the electrode sheet 200 enters the frame 10, it first passes over the guide roller 150, then passes through the side opening at one end of the frame 10, such as the right end, and is finally wound up by the winding mechanism. The guide roller 150 can support and guide the electrode sheet 200.
[0067] In this embodiment, a U-shaped seat 1501 is provided on one inner wall of the frame 10, and the roller 150 is located inside the U-shaped seat 1501. The two ends of the roller 150 are rotatably mounted on the inner walls of the two ends of the U-shaped seat 1501 through two roller bearing seats. The U-shaped seat 1501 can provide installation support for the roller 150.
[0068] This utility model also provides an electrode production equipment, including an unwinding mechanism for unwinding the electrode 200, a winding mechanism for winding the electrode 200, and the aforementioned powder calendering mechanism. The powder calendering mechanism is arranged between the unwinding mechanism and the winding mechanism along the travel path of the electrode 200.
[0069] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A powder calendering mechanism, characterized in that, The assembly includes a mounting frame, a first calendering roll, a second calendering roll, a third calendering roll, a first calendering drive assembly, a second calendering drive assembly, a third calendering drive assembly, and a trough assembly. The mounting frame has a top opening and a bottom opening, respectively. The first calendering roll and the second calendering roll are sequentially arranged within the mounting frame along its length, with a first calendering gap between their roll surfaces. The first calendering drive assembly drives the first calendering roll to rotate, and the second calendering drive assembly drives the second calendering roll to rotate. The third calendering roll is disposed within the mounting frame. The third calendering roll is located on one side of the top of the first calendering roll surface. The radius of the third calendering roll is smaller than that of the first calendering roll, and there is a second calendering gap between the roll surface of the third calendering roll and the roll surface of the first calendering roll. The third calendering drive assembly is used to drive the third calendering roll to rotate. The trough assembly is disposed between the top of the roll surfaces of the third calendering roll and the first calendering roll. The bottom end of the trough assembly cooperates with the roll surface of the first calendering roll, and one side of the trough assembly cooperates with the roll surface of the third calendering roll. The trough assembly is provided with a trough, and the trough communicates with the second calendering gap.
2. The powder calendering mechanism according to claim 1, characterized in that, It also includes a frame, a first back roll, a second back roll, and a back roll drive assembly. The mounting frame is disposed at the top of the frame, and the top of the frame has a frame opening communicating with the bottom opening. One end of the frame has a side opening. The first back roll and the second back roll are respectively disposed in the mounting frame. The first calender roll is located between the first back roll and the second calender roll. The first back roll is located between the second back roll and the first calender roll. The radius of the first back roll is smaller than the radius of the second back roll. The roll surface of the first back roll is in contact with the roll surface of the first calender roll, and the roll surface of the second back roll is in contact with the roll surface of the first back roll. The back roll drive assembly is used to drive the first back roll to rotate.
3. The powder calendering mechanism according to claim 2, characterized in that, The mounting frame has two mounting positions on each side. Two first calendering bearing seats are rotatably fitted on both ends of the first calendering roll, and the two first calendering bearing seats are fixedly installed in the two mounting positions. Two second calendering bearing seats are rotatably fitted on both ends of the second calendering roll, and the two second calendering bearing seats are slidably installed in the two mounting positions. Two first back roll bearing seats are rotatably fitted on both ends of the first back roll, and the two first back roll bearing seats are slidably installed in the two mounting positions. The ends of the two second back roll bearing seats that are closer to the first back roll are in contact with the ends of the two first back roll bearing seats that are farther away from the first calendering roll. It also includes a first pressure driving assembly and a second pressure driving assembly. The first pressure driving assembly includes a first pressure driving member, which is disposed at one end of the mounting frame. The ends of the two second back roller bearing seats away from the first back roller are provided with a first connecting block. The output end of the first pressure driving member passes through a first hole at one end of the mounting frame and is connected to the first connecting block. The second pressure driving assembly includes a second pressure driving member, which is disposed at the other end of the mounting frame. The ends of the two second calendering bearing seats away from the first calendering roller are provided with a second connecting block. The output end of the second pressure driving member passes through a second hole at the other end of the mounting frame and is connected to the second connecting block.
4. The powder calendering mechanism according to claim 1, characterized in that, The two ends of the third calender roll are rotatably mounted on two gap adjustment components, which are arranged opposite to each other. Two support plates are provided on the inner walls of the top opening, and the support plates protrude from the top of the mounting frame. The two gap adjustment components are connected to the top of the two support plates respectively. The two gap adjustment components are used to drive the third calender roll to move towards or away from the first calender roll.
5. The powder calendering mechanism according to claim 4, characterized in that, The gap adjustment assembly includes an adjustment plate, a lower fixed seat, a lifting slide, and an upper fixed seat. The two ends of the third calender roll are rotatably mounted on the adjustment plates of the two gap adjustment assemblies. The lower fixed seat and the upper fixed seat are located above the third calender roll and are both parallel to the second calender gap. The lower fixed seat is located at the top of the adjustment plate, the lifting slide is located at the top of the lower fixed seat, and the upper fixed seat is located at the top of the lifting slide. The upper fixed seats of the two gap adjustment assemblies are respectively connected to the tops of the two support plates.
6. The powder calendering mechanism according to claim 1, characterized in that, The feed trough assembly includes a first partition, two second partitions, and two adjusting limiters. The two second partitions are spaced apart along the width direction of the mounting frame. The bottom ends of both second partitions mate with the roll surface of the first calendering roll, and the sides of both second partitions near the third calendering roll mate with the roll surface of the third calendering roll. The top of each second partition has a partition groove, which mates with the first partition. There is a gap between the bottom of the first partition and the roll surface of the first calendering roll. Two support plates are respectively provided on the inner walls of the two sides of the top opening. The two ends of the first partition are respectively connected to the inner sides of the two support plates. The two adjusting limiters correspond to the two second partitions respectively. The adjusting limiters are set on the first partition and the corresponding second partition. The feed trough is formed between the first partition, the two second partitions, and the two adjusting limiters.
7. The powder calendering mechanism according to claim 6, characterized in that, The adjusting limiting component is detachably mounted on the first partition and the corresponding second partition; the bottom end of the adjusting limiting component is provided with a first limiting groove and two opposing second limiting grooves, the first limiting groove cooperates with the first partition, the two second limiting grooves are connected to the first limiting groove, and the two second limiting grooves cooperate with the corresponding second partitions respectively; the adjusting limiting component is provided with a mounting hole, the mounting hole penetrates the first limiting groove, and two opposing mounting fasteners are installed in the mounting hole, the heads of the two mounting fasteners abut against the two sides of the first partition respectively.
8. The powder calendering mechanism according to claim 6, characterized in that, The two ends of the first partition are slidably connected to the inner sides of the two support plates, and the inner sides of the two support plates are provided with two support seats. The support seats are located above the first partition. The two support seats are provided with two mounting grooves on their adjacent sides. Two adjusting screws pass through the two mounting grooves and are threadedly connected to the two threaded holes at the top of the first partition. The two adjusting screws can rotate relative to the two support seats. Two limiting blocks are respectively fitted on the outer periphery of the two adjusting screws. The two limiting blocks are in contact with the bottom of the two support seats. The heads of the two adjusting screws are located above the two support seats and are in contact with the top of the two support seats.
9. The powder calendering mechanism according to claim 2, characterized in that, Both the first calendering drive assembly and the second calendering drive assembly include a first calendering motor and a first calendering reducer. The first calendering reducer is disposed at the top of the support frame, which is located on one side of the frame. The first calendering motor is disposed on the first calendering reducer. The output end of the first calendering motor is connected to the input end of the first calendering reducer. The output end of the first calendering reducer of the first calendering drive assembly is connected to one end of the first calendering roll. The output end of the first calendering reducer of the second calendering drive assembly is connected to one end of the second calendering roll. The third calendering drive assembly includes a second calendering motor, a second calendering reducer, and a transmission rod. The second calendering reducer is disposed on one side of the mounting frame, and the second calendering motor is disposed on the second calendering reducer. The output end of the second calendering motor is connected to the input end of the second calendering reducer, and the output end of the second calendering reducer is connected to one end of the transmission rod. The other end of the transmission rod extends into the mounting frame and is connected to one end of the third calendering roll. The back roller drive assembly includes a back roller motor and a back roller reducer. The back roller reducer is located at the top of the support frame, and the back roller motor is located on the back roller reducer. The output end of the back roller motor is connected to the input end of the back roller reducer, and the output end of the back roller reducer is connected to one end of the first back roller.
10. An electrode production apparatus, comprising an unwinding mechanism and a rewinding mechanism, characterized in that, It also includes a powder calendering mechanism as described in any one of claims 1-9, wherein the powder calendering mechanism is disposed between the unwinding mechanism and the winding mechanism along the travel path of the electrode sheet.