Rolling equipment
By introducing an adjustment device consisting of a moving block, a fixed block, a connecting part, and a transmission mechanism into the dry film forming roller press, the problems of low structural strength and low adjustment accuracy of the adjustment device are solved, and high-precision adjustment is achieved even when the hydraulic cylinder is not fully depressurized.
Patent Information
- Application Number
- CN202423175533.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In existing dry film forming roller pressing equipment, the structural strength of the adjustment device is low, resulting in low roller pressing pressure and low adjustment accuracy. Furthermore, after the hydraulic cylinder re-extrudes and limits the position, the spacing is prone to change due to deformation.
The adjustment device includes a moving block, a fixed block, a connector, and a transmission mechanism. The transmission mechanism drives the moving block to slide through the connector. The moving block is set separately outside the gap between the mounting seats. The dimensions of the transmission mechanism are designed to meet the structural strength requirements, so as to adjust the pressure roller spacing when the hydraulic cylinder is not fully depressurized.
The structural strength and adjustment accuracy of the roller pressing equipment have been improved, ensuring that the adjustment accuracy does not decrease when the hydraulic cylinder is not fully depressurized, and solving the problem of spacing changes caused by deformation.
Smart Images
Figure CN223631091U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lithium battery manufacturing technical field especially relates to a roll equipment. BACKGROUND
[0002] Battery pole piece is the basis of lithium ion battery, directly determines the electrochemical performance and safety of battery. Battery pole piece usually adopts dry method or wet process to prepare, wherein dry method preparation process is to prepare film piece from powder, then carries out thermal complex with current collector (foil) to prepare battery pole piece.
[0003] In the dry method film forming roll equipment, the distance between the two roll surfaces of the two cooperating pressure rollers determines the thickness of the roll forming film, and the film needs to be thinned several times after forming, so an adjusting mechanism is arranged between the two adjacent pressure rollers for adjusting the distance between the two pressure rollers and adjusting the film thickness.
[0004] The existing adjusting device includes two inclined wedge blocks that slide with each other, two opposite sides of the two inclined wedge blocks are in contact with the ends of the pressure rollers, and one of the inclined wedge blocks is fixedly arranged, and the other inclined wedge block passes through a lead screw inside, the lead screw rotates to drive the inclined wedge block to move, thereby pushing the pressure roller to move to adjust the roll gap distance. But this structure is limited by the space between the two pressure rollers, resulting in a small diameter of the lead screw, low structural strength and small roll pressure that can be resisted. Hydraulic cylinders are arranged on both sides of the pressure roller for extruding and limiting the pressure roller. Due to the low structural strength of the lead screw and the small roll pressure that can be resisted, the hydraulic cylinders need to be completely depressurized when adjusting the roll gap, but the adjusted distance changes easily due to workpiece deformation and other factors after the hydraulic cylinders re-extrude and limit the pressure roller, resulting in reduced adjusting accuracy. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a roll equipment to ensure the structural strength of the transmission mechanism and the adjusting accuracy of the adjusting device.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] The roll equipment comprises:
[0008] At least two pressure rollers, the axes of the at least two pressure rollers are parallel to each other, and at least one of the adjacent two pressure rollers is movably arranged, and the two ends of the pressure roller are respectively mounted on the mounting seat.
[0009] The adjusting device comprises a moving block, a fixed block, a connecting piece and a transmission mechanism, one side of the fixed block is fixedly connected with a mounting base of one of the compression rollers, the other side of the fixed block is provided with a first inclined wedge surface, one side of the moving block is provided with a second inclined wedge surface which is in sliding fit with the first inclined wedge surface, the other side of the moving block is in contact with and relatively slidable with the mounting base of the other compression roller; the connecting piece comprises a first connecting part and a second connecting part, the first connecting part is connected with the moving block, the second connecting part is connected with the transmission mechanism, and the transmission mechanism drives the moving block to slide relative to the fixed block through the connecting piece.
[0010] The technical scheme has the following beneficial effects:
[0011] The technical scheme provides a roller pressing equipment which comprises at least two compression rollers and an adjusting device, the adjusting device comprises a moving block, a fixed block, a connecting piece and a transmission mechanism, the connecting piece comprises a first connecting part and a second connecting part, the first connecting part is connected with the moving block, the second connecting part is connected with the transmission mechanism, and the transmission mechanism drives the moving block to slide relative to the fixed block through the connecting piece. By arranging the connecting piece, the transmission mechanism and the moving block can be arranged separately, so that the transmission mechanism can be arranged in a space outside the gap between the two mounting bases, and is not limited by the gap between the two mounting bases, and therefore the size of the transmission mechanism can be designed according to actual needs to meet the requirement of structural strength, and the interval between the two adjacent compression rollers can be adjusted under the condition that the hydraulic cylinder is not completely depressurized, so that the problem of the decrease of the adjustment accuracy caused by the deformation of the related components under the extrusion is solved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 is a structural schematic view of the roller pressing equipment provided by the embodiment of the utility model;
[0013] Fig. 2 is a top view of the roller pressing equipment provided by the embodiment of the utility model;
[0014] Fig. 3 is a structural schematic view of the adjusting device from a first perspective;
[0015] Fig. 4 is a structural schematic view of the adjusting device from a second perspective.
[0016] In the drawings:
[0017] 10, compression roller; 20, mounting base; 30, adjusting device;
[0018] 31, fixed block; 311, first inclined wedge surface; 32, moving block; 321, second inclined wedge surface; 33, connecting piece; 331, first connecting part; 332, second connecting part; 34, transmission mechanism; 341, support seat; 342, screw rod; 35, driving mechanism; 351, motor; 352, speed reducer; 36, guide rail; 37, sliding block. DETAILED DESCRIPTION
[0019] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0020] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0021] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0022] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0023] As Figs. 1 to 4As shown, the embodiment provides a rolling device, which comprises at least two pressing rollers 10, the axes of the at least two pressing rollers 10 are parallel to each other, and each pressing roller 10 is mounted on a mounting base 20 at both ends in the axial direction, and a hydraulic cylinder (not shown in the figure) is arranged on the mounting base 20 at both ends of each pressing roller 10, and the hydraulic cylinder acts on the mounting base 20 of the corresponding pressing roller 10 to press and limit the pressing roller 10. At least one of the two adjacent pressing rollers 10 is movably arranged in a direction perpendicular to the axis of the pressing roller 10. The rolling device further comprises an adjusting device 30, which comprises a fixed block 31, a moving block 32, a connecting piece 33 and a transmission mechanism 34, one side of the fixed block 31 is fixedly connected with the mounting base 20 of one of the two adjacent pressing rollers 10, the other side of the fixed block 31 has a first inclined wedge surface 311, one side of the moving block 32 has a second inclined wedge surface 321, the second inclined wedge surface 321 is in sliding fit with the first inclined wedge surface 311, and the other side of the moving block 32 is in contact with and can slide relative to the mounting base 20 of the other pressing roller 10; the connecting piece 33 comprises a first connecting part 331 and a second connecting part 332, the first connecting part 331 is connected with the moving block 32, the second connecting part 332 is connected with the transmission mechanism 34, and the transmission mechanism 34 drives the moving block 32 to slide relative to the fixed block 31 through the connecting piece 33. When the transmission mechanism 34 drives the moving block 32 to slide relative to the fixed block 31, since the moving block 32 and the fixed block 31 are in wedge surface fit, the movably arranged pressing roller 10 can be pushed to move in a direction perpendicular to the axis of the pressing roller 10, so as to realize the spacing adjustment of the two pressing rollers 10.
[0024] By arranging the connecting piece 33, the transmission mechanism 34 and the moving block 32 can be arranged separately, so that the transmission mechanism 34 can be distributed in a space outside the gap between the two mounting bases 20, and is no longer limited by the gap between the two mounting bases 20, and thus the size of the transmission mechanism 34 can be designed according to actual needs to meet the requirement of structural strength, so that the spacing between the two adjacent pressing rollers 10 can be adjusted under the pressure state of the hydraulic cylinder not completely depressurized, and the problem of reduced adjustment accuracy caused by deformation of the related parts under pressure when the hydraulic cylinder re-presses and limits the pressing roller 10 after the spacing adjustment is solved.
[0025] In the embodiment, the transmission mechanism 34 comprises a lead screw 342 and a support base 341, the lead screw 342 extends and is distributed in the direction in which the moving block 32 slides relative to the fixed block 31, both ends of the lead screw 342 are rotatably arranged on the support base 341, the second connecting part 332 of the connecting piece 33 is in transmission connection with the lead screw 342, and the rotation of the lead screw 342 can drive the moving block 32 to slide relative to the fixed block 31. The lead screw 342 can be designed to have a sufficient size according to actual needs to meet the requirement of structural strength.
[0026] In the embodiment, the second connecting portion 332 of the connecting piece 33 is directly connected with the lead screw 342. Specifically, the second connecting portion 332 is provided with a threaded hole penetrating along the axial direction of the lead screw 342, and the lead screw 342 is threadedly connected with the threaded hole of the second connecting portion 332. In other embodiments, the second connecting portion 332 of the connecting piece 33 can also be indirectly connected with the lead screw 342 through an intermediate piece. Specifically, the second connecting portion 332 is fixedly connected with the intermediate piece, the intermediate piece is provided with a threaded hole penetrating along the axial direction of the lead screw 342, and the lead screw 342 is threadedly connected with the threaded hole of the intermediate piece.
[0027] Optionally, the lead screw 342 is rotationally connected with the support base 341 through an angular contact ball bearing. By using the angular contact ball bearing, the axial gap between the lead screw 342 and the support base 341 can be eliminated, so that the lead screw 342 has no axial shaking and has high axial positioning accuracy, thereby improving the adjustment accuracy of the adjustment device 30.
[0028] Further, the support base 341 is provided with a guide rail 36, the guide rail 36 is arranged in parallel with the lead screw 342, the guide rail 36 is slidingly connected with a sliding block 37, and the sliding block 37 is connected with the second connecting portion 332 of the connecting piece 33. Through the arrangement, the movement of the moving block 32 can be guided, and the problem of shaking between the second connecting portion 332 and the lead screw 342 due to the gap of the threaded connection can be avoided, thereby further improving the axial positioning accuracy and further improving the adjustment accuracy of the adjustment device 30. Optionally, the second connecting portion 332 of the connecting piece 33 and the sliding block 37 can be integrally formed or separately formed and then connected.
[0029] In the embodiment, the first connecting portion 331 is T-shaped, the large end of the first connecting portion 331 is a fixed end, the fixed end of the first connecting portion 331 is connected with the moving block 32, and the small end of the first connecting portion 331 is connected with the second connecting portion 332. Through the arrangement, the connection strength of the first connecting portion 331 and the moving block 32 can be ensured, and the connection strength of the first connecting portion 331 and the second connecting portion 332 can also be ensured, and the second connecting portion 332 does not excessively occupy the axial space of the lead screw 342. In other embodiments, the first connecting portion 331 can also be L-shaped. In the embodiment, the fixed end of the first connecting portion 331 is detachably connected with the moving block 32, and the disassembly and maintenance are more convenient. For example, the fixed end of the first connecting portion 331 can be connected with the moving block 32 through bolts. Optionally, the first connecting portion 331 and the moving block 32 can be connected through fasteners or clamped connection. In other embodiments, the first connecting portion 331 and the moving block 32 can also be connected through welding or integrally formed. Further, the length of the fixed end of the first connecting portion 331 along the axial direction of the lead screw 342 is greater than 1 / 2 of the length of the moving block 32 along the axial direction of the lead screw 342, so as to ensure the connection strength of the fixed end of the first connecting portion 331 and the moving block 32.
[0030] Further, the rolling device further comprises a driving mechanism 35, the driving mechanism 35 comprises a motor 351, the motor 351 drives the lead screw 342, and the control mode is labor-saving and high in precision. In order to meet the transmission requirement, a speed reducer 352 can be added, so that the motor 351 drives the lead screw 342 through the speed reducer 352. Alternatively, the driving mechanism can also be an electric cylinder, a pneumatic cylinder or other driving modes. Alternatively, the driving mechanism 35 can also comprise a manual rocker, and the lead screw 342 is driven to rotate through the manual rocker.
[0031] Further, the two ends of the two adjacent compression rollers 10 in the axial direction are respectively provided with adjusting devices 30, when the distance between the two adjacent compression rollers 10 is adjusted, the adjusting devices 30 at the two ends of the two adjacent compression rollers 10 in the axial direction are simultaneously adjusted, so as to ensure that the distance between the two adjacent compression rollers 10 is uniform.
[0032] Optionally, the number of the compression rollers 10 is two or an odd number greater than two, when the number of the compression rollers 10 is two, at least one of the compression rollers 10 is movably arranged in a direction perpendicular to the axis of the compression roller 10; when the number of the compression rollers 10 is an odd number greater than two, the compression roller 10 located in the middle is fixedly arranged in a direction perpendicular to the axis of the compression roller 10, and the remaining compression rollers 10 are movably arranged in a direction perpendicular to the axis of the compression roller 10. When the number of the compression rollers 10 is large, the adjusting device 30 bears greater pressure when adjusting the distance between the compression rollers, and it is required to have sufficient structural strength, and the adjusting device 30 provided in the embodiment can well meet the strength requirement.
[0033] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation on the implementation mode of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be carried out without departing from the protection scope of the utility model. Here, it is not necessary and impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A rolling apparatus, characterized by, The roll pressing device comprises: at least two pressing rollers (10), the axes of the at least two pressing rollers (10) are parallel to each other, and at least one of the adjacent two pressing rollers (10) is movably arranged, and the two ends of the pressing roller (10) are respectively arranged on the mounting seat (20); an adjusting device (30) comprising a moving block (32), a fixed block (31), a connecting piece (33) and a transmission mechanism (34), one side of the fixed block (31) is fixedly connected with the mounting seat (20) of one of the pressing rollers (10), the other side of the fixed block (31) has a first inclined wedge surface (311), one side of the moving block (32) has a second inclined wedge surface (321), the second inclined wedge surface (321) is in sliding fit with the first inclined wedge surface (311), the other side of the moving block (32) is in contact with and can slide relative to the mounting seat (20) of the other pressing roller (10); the connecting piece (33) comprises a first connecting part (331) and a second connecting part (332), the first connecting part (331) is connected with the moving block (32), the second connecting part (332) is connected with the transmission mechanism (34), and the transmission mechanism (34) drives the moving block (32) to slide relative to the fixed block (31) through the connecting piece (33).
2. The roll press apparatus according to claim 1, characterized by The transmission mechanism (34) comprises a lead screw (342) and a support seat (341), the two ends of the lead screw (342) are rotatably arranged on the support seat (341), and the second connecting part (332) is in transmission connection with the lead screw (342).
3. The roll press apparatus according to claim 2, characterized by, The second connecting part (332) is provided with a threaded hole penetrating along the axis direction of the lead screw (342), and the lead screw (342) is in threaded connection with the threaded hole.
4. The roll press apparatus according to claim 3, characterized by The fixed end of the first connecting part (331) is detachably connected with the moving block (32).
5. The roll press apparatus according to claim 4, characterized by The fixed end of the first connecting part (331) is connected with the moving block (32) through bolts.
6. The roll press apparatus according to claim 4, characterized by The length of the fixed end of the first connecting part (331) along the axis direction of the lead screw (342) is greater than 1 / 2 of the length of the moving block (32) along the axis direction of the lead screw (342).
7. The roll press apparatus according to claim 2 or 4, characterized by The support seat (341) is provided with a guide rail (36), the guide rail (36) is arranged in parallel with the lead screw (342), a sliding block (37) is slidably connected on the guide rail (36), and the sliding block (37) is connected with the second connecting part (332).
8. The roll press apparatus according to claim 2, characterized by The roll pressing device further comprises a driving mechanism (35), the driving mechanism (35) comprises a motor (351), and the motor (351) drives the lead screw (342).
9. The roll press apparatus according to any one of claims 1 to 4, characterized by The two ends of the adjacent two pressing rollers (10) are respectively provided with the adjusting device (30).
10. The roll press apparatus according to any one of claims 1 to 4, characterized by The number of the pressing rollers (10) is two.