Longitudinal drawing preheating zone oil removal roller device

Abstract

The utility model discloses an oil removal roller device in a longitudinal-drawing preheating area, which relates to the technical field of oil removal roller equipment and comprises an oil removal roller, a swing arm, an air cylinder, a rotating shaft and a torsion spring. The two ends of the air cylinder are rotationally connected with the swing arm and the side plate respectively, the rotation freedom degree of the air cylinder body can be released in the mode, and clamping stagnation is avoided when the air cylinder swings; the torsion spring is arranged between the rotating shaft and the swing arm, and the torsion spring can effectively conduct elastic torsion supporting between the swing arm and the air cylinder and can conduct certain elastic buffering on the swing arm, so that elastic buffering is achieved between the oil removing roller and the diaphragm, the distance between the oil removing roller and the diaphragm can be subjected to self-adaptive fine adjustment, and the diaphragm can be effectively prevented from being damaged. The air cylinder stretches out and draws back to drive the swing arm to swing, the swing arm drives the oil removing roller to swing, the oil removing roller swings along the center rotating shaft of the swing arm, the air cylinder adjusts the position of the oil removing roller through the swing arm, the adjusting range of the oil removing roller is larger, and the position adjustment of the oil removing roller is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of degreasing roller equipment, in particular to a degreasing roller device in a longitudinal drawing preheating zone. Background Art

[0002] During the charge and discharge process of lithium-ion batteries, the diaphragm separates the positive and negative electrodes to prevent contact and short circuits, absorbs sufficient electrolyte, provides sufficient electrolyte lithium ion channels, and has micropore self-closing protection. The lithium ion conductivity of the diaphragm is directly related to the overall performance of the lithium-ion battery; therefore, the consistency of the diaphragm's performance is crucial. The existing wet diaphragm process is as follows: casting → longitudinal stretching → primary transverse stretching → extraction → secondary transverse stretching → winding. After extraction and drying, the oil film is shaped by secondary transverse stretching. If the white oil content of the diaphragm is too high during the longitudinal stretching process, it will lead to uneven contact with the rollers in the preheating area, resulting in some changes in the diaphragm's physical properties during stretching, such as light and dark lines. Therefore, the diaphragm needs to be degreased.

[0003] Patent (CN217393084U) discloses a lithium battery diaphragm oil removal device, including an active roller, a driven roller parallel to the active roller, a transmission mechanism that drives the driven roller and the active roller to rotate in opposite directions, and also includes telescopic cylinders symmetrically arranged at both ends of the driven roller; wherein the telescopic cylinder is parallel to the radial surface of the active roller, and the telescopic end of the telescopic cylinder is vertically connected to the end of the driven roller. The silicone roller and the casting roller in the utility model are pressed in parallel to obtain a uniform oil film, so that the thickness consistency is guaranteed, the existence of oil stains or uneven film surface is improved, the negative impact on the next process is reduced, and the product scrap rate is reduced. The tightness of the pressing of the two rollers can be adjusted by the telescopic cylinder, thereby changing the thickness of the oil layer, which is suitable for different working conditions. The variable frequency drive motor can balance the rotation speed of the silicone roller and the casting roller, which is more conducive to the production of a uniform oil film.

[0004] The diaphragm oil removal device in the above patent mainly relies on direct adjustment of the distance between the active roller and the driven roller by the expansion and contraction of the cylinder. The adjustment accuracy of the distance between the active roller and the driven roller is not high, and it is not convenient to perform fine adjustment. Utility Model Content

[0005] The purpose of the utility model is to provide a longitudinal drawing preheating zone oil removal roller device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a longitudinal pulling preheating zone oil removal roller device, comprising two side plates and a plurality of oil removal rollers, the oil removal rollers being arranged between the two side plates, the two adjacent oil removal rollers being parallel to each other, the oil removal rollers and the side plates being perpendicular to each other, symmetrically provided with rotatably connected swing arms at both ends of the oil removal rollers, the center of the outer wall of the swing arm being rotatably connected to the side plate, the outer wall of the side plate being provided with a rotatably connected cylinder on one side of the swing arm, the swing arm being rotatably connected to the output end of the cylinder at one end away from the oil removal roller, the outer wall of the side plate being provided with a rotating shaft, and a torsion spring being provided between the rotating shaft and the swing arm.

[0007] Furthermore, the cylinder is rotatably connected to the swing arm via a Y-shaped joint, one end of the cylinder away from the Y-shaped joint is rotatably connected to the side plate, and the two side plates are fixedly connected via reinforcing ribs.

[0008] Furthermore, the side plate is fixedly connected to the longitudinal preheating frame, and a plurality of rotatably connected first preheating rollers and second preheating rollers are provided on the inner side of the longitudinal preheating frame, and the oil removal roller, the first preheating roller and the second preheating roller are parallel to each other.

[0009] Furthermore, the oil removal roller and the first preheating roller are arranged alternately, the cross-sectional centers of the first preheating roller are located on the same straight line, and the cross-sectional centers of the second preheating roller are located on the same straight line.

[0010] Furthermore, a first gear is provided at one end of the outer wall of the oil removal roller, and a second gear meshing with the first gear is provided at one end of the outer wall of the first preheating roller.

[0011] Furthermore, a self-aligning bearing seat is provided at one end of the swing arm away from the cylinder, and both ends of the oil removal roller are matched and connected to the self-aligning bearing seat through self-aligning bearings.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] 1. The utility model realizes the oil scraping action by arranging an oil removal roller, a swing arm, a cylinder, a rotating shaft and a torsion spring through multiple oil removal rollers, and the size of the cylinder pressure can be controlled by a pressure reducing valve; the two ends of the cylinder are respectively connected to the swing arm and the side plate for rotation. This method can release the rotational freedom of the cylinder body, and there is no jamming when the cylinder swings; a torsion spring is arranged between the rotating shaft and the swing arm, and the torsion spring provides elastic torsional support between the rotating shaft and the swing arm. The torsion spring can effectively provide elastic torsional support between the swing arm and the cylinder, and can provide a certain elastic buffer for the swing arm, so that there is an elastic buffer between the oil removal roller and the diaphragm, so that the spacing between the oil removal roller and the diaphragm can be adaptively fine-tuned, which can effectively avoid damage to the diaphragm; the cylinder is adjusted to extend and retract, and the cylinder drives the swing arm to swing, and the swing arm drives the oil removal roller to swing, and the oil removal roller swings along the central rotating shaft of the swing arm. The cylinder adjusts the position of the oil removal roller through the swing arm, and the adjustment range of the oil removal roller is larger, making the position adjustment of the oil removal roller more precise.

[0014] 2. In the utility model, the cylinder can rotate freely during the extension and retraction process, ensuring that the cylinder can normally drive the swing arm to swing; the side plate is installed in the longitudinal preheating frame to ensure that the deoiling roller directly deoils the diaphragm in the longitudinal preheating frame, and the operation is convenient and quick; the deoiling roller deoils the diaphragm in a parallel position between the first preheating roller and the second preheating roller; the first preheating roller and the second preheating roller guide the longitudinal pulling path of the diaphragm, ensuring that multiple deoiling rollers deoil the diaphragm multiple times; the deoiling roller rotates in the opposite direction to the first preheating roller, ensuring that the deoiling roller and the first preheating roller cooperate to roll and deoil the white oil on the surface of the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0017] Figure 2 It is a structural diagram of the base plate and welding gun of the utility model;

[0018] Figure 3 This utility model Figure 2 Structural diagram from another angle;

[0019] Figure 4 It is a structural schematic diagram of the substrate of the utility model;

[0020] Figure 5 This utility model Figure 4 Structural diagram from another angle;

[0021] In the figure: 1. Side plate; 2. Degreasing roller; 3. Swing arm; 4. Cylinder; 5. Rotating shaft; 6. Self-aligning bearing seat; 7. Longitudinal preheating frame; 8. First preheating roller; 9. Second preheating roller; 10. First gear; 11. Second gear; 12. Reinforcement rib; 13. Y-type joint. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a longitudinal pulling preheating zone degreasing roller device, comprising two side plates 1 and a plurality of degreasing rollers 2, the degreasing rollers 2 being arranged between the two side plates 1, the two adjacent degreasing rollers 2 being parallel to each other, the degreasing rollers 2 and the side plates 1 being perpendicular to each other, the two ends of the degreasing rollers 2 being symmetrically provided with rotatably connected swing arms 3, the center of the outer wall of the swing arm 3 being rotatably connected to the side plate 1, the outer wall of the side plate 1 being provided with a rotatably connected cylinder 4 on one side of the swing arm 3, the end of the swing arm 3 away from the degreasing roller 2 being rotatably connected to the output end of the cylinder 4, the outer wall of the side plate 1 being provided with a rotating shaft 5, and a torsion spring being provided between the rotating shaft 5 and the swing arm 3.

[0024] The cylinder 4 is rotatably connected to the swing arm 3 via a Y-shaped joint 13, and the end of the cylinder 4 away from the Y-shaped joint is rotatably connected to the side plate 1, ensuring that the cylinder 4 can rotate freely during the extension and retraction process, and ensuring that the cylinder 4 can normally drive the swing arm 3 to swing; the two side plates 1 are fixedly connected by reinforcing ribs 12, and the reinforcing ribs 12 connect and fix the two side plates 1 to form a frame, thereby ensuring the safety and stability of the device.

[0025] The side plate 1 is fixedly connected to the longitudinal preheating frame 7, and the side plate 1 is installed in the longitudinal preheating frame 7 to ensure that the deoiling roller 2 directly deoils the diaphragm in the longitudinal preheating frame 7, and the operation is convenient and quick; a plurality of rotatably connected first preheating rollers 8 and second preheating rollers 9 are provided on the inner side of the longitudinal preheating frame 7, and the deoiling roller 2, the first preheating roller 8 and the second preheating roller 9 are parallel to each other to ensure that the deoiling roller 2 deoils the diaphragm in a parallel position of the first preheating roller 8 and the second preheating roller 9; the deoiling roller 2 and the first preheating roller 8 are staggered, and the deoiling roller 2 can directly deoil the diaphragm on the surface of the first preheating roller 8; the center of the cross section of the first preheating roller 8 is located on the same straight line, and the center of the cross section of the second preheating roller 9 is located on the same straight line, The first preheating roller 8 and the second preheating roller 9 guide the longitudinal pulling path of the diaphragm to ensure that multiple oil removal rollers 2 perform multiple oil removal treatments on the diaphragm; a first gear 10 is provided at one end of the outer wall of the oil removal roller 2, and a second gear 11 is provided at one end of the outer wall of the first preheating roller 8 that meshes with the first gear 10. When the oil removal roller 2 presses the diaphragm, the first gear 10 and the second gear 11 are in a meshing state. During the rolling of the first preheating roller 8, the second gear 11 rotates with the first preheating roller 8, and the second gear 11 drives the first gear 10 to rotate. The first gear 10 drives the oil removal roller 2 to roll. The rotation direction of the oil removal roller 2 is opposite to that of the first preheating roller 8, ensuring that the oil removal roller 2 and the first preheating roller 8 cooperate to perform rolling oil removal treatment on the white oil on the surface of the diaphragm.

[0026] The swing arm 3 is provided with a self-aligning bearing seat 6 at one end away from the cylinder 4, and the two ends of the oil removal roller 2 are respectively connected to the self-aligning bearing seat 6 through self-aligning bearings, which can effectively avoid the problem of eccentricity when the oil removal roller 2 and the first preheating roller are pressed.

[0027] The working principle of this utility model:

[0028] Refer to the instruction manual Figure 1-Figure 5The utility model realizes the oil scraping action by setting oil removal roller 2, swing arm 3, cylinder 4, rotating shaft 5 and torsion spring through multiple oil removal rollers. The size of the pressure in cylinder 4 can be controlled by a pressure reducing valve; the two side plates 1 form a frame through reinforcing ribs 12, and the cylinder 4 is installed on the frame. The two ends of the cylinder 4 are rotatably connected to the swing arm 3 and the side plate 1 respectively. This method can release the rotational freedom of the cylinder 4 body, and there is no jamming when the cylinder 4 swings; the front end of the cylinder 4 is connected to the swing arm 3 through a Y-type joint 13, and the rotation center of the swing arm 3 is rotatably connected to the side plate 1 through the rotating shaft 5. A torsion spring is set between the rotating shaft 5 and the swing arm 3. An elastic torsional support is provided between the shaft 5 and the swing arm 3. The torsion spring can effectively provide elastic torsional support between the swing arm 3 and the cylinder 4, and can provide a certain elastic buffer for the swing arm 3, so that an elastic buffer is provided between the degreasing roller 2 and the diaphragm. This allows the distance between the degreasing roller 2 and the diaphragm to be adaptively fine-tuned, which can effectively prevent damage to the diaphragm. The cylinder 4 is adjusted to extend and retract, and the cylinder 4 drives the swing arm 3 to swing, and the swing arm 3 drives the degreasing roller 2 to swing. The degreasing roller 2 swings along the central rotating shaft 5 of the swing arm 3. The cylinder 4 adjusts the position of the degreasing roller 2 through the swing arm 3, and the adjustment range of the degreasing roller 2 is larger, making the position adjustment of the degreasing roller 2 more precise.

[0029] A self-aligning bearing seat 6 is installed on the swing arm 3 to avoid eccentricity when the pressure roller and the roller are pressed tightly; the cylinder 4 uses a double-acting cylinder, which can slowly open and slowly press, and is matched with a two-position five-way solenoid valve; the degreasing roller 2 in the mechanism is made of silicone rubber with a Shore hardness of 56-65; the degreasing roller 2 can remove most of the white oil in the film in the preheating zone, reduce the generation of oil bubbles, and make the contact between the diaphragm and the roller more uniform.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A degreasing roller device for a longitudinal drawing preheating zone, comprising two side plates (1) and a plurality of degreasing rollers (2), characterized in that: The oil removal roller (2) is arranged between the two side plates (1), and the two adjacent oil removal rollers (2) are parallel to each other. The oil removal roller (2) and the side plates (1) are perpendicular to each other. The two ends of the oil removal roller (2) are symmetrically provided with swing arms (3) that are rotatably connected. The center of the outer wall of the swing arm (3) is rotatably connected to the side plate (1). The outer wall of the side plate (1) is provided with a cylinder (4) that is rotatably connected on one side of the swing arm (3). The end of the swing arm (3) away from the oil removal roller (2) is rotatably connected to the output end of the cylinder (4). The outer wall of the side plate (1) is provided with a rotating shaft (5), and a torsion spring is provided between the rotating shaft (5) and the swing arm (3).

2. The degreasing roller device in the longitudinal drawing preheating zone according to claim 1, characterized in that: The cylinder (4) is rotatably connected to the swing arm (3) via a Y-shaped joint (13); one end of the cylinder (4) away from the Y-shaped joint is rotatably connected to the side plate (1); and the two side plates (1) are fixedly connected via a reinforcing rib (12).

3. The degreasing roller device in the longitudinal drawing preheating zone according to claim 1, characterized in that: The side plate (1) is fixedly connected to the longitudinal preheating frame (7), and a plurality of rotatably connected first preheating rollers (8) and second preheating rollers (9) are provided on the inner side of the longitudinal preheating frame (7), and the oil removal roller (2), the first preheating roller (8) and the second preheating roller (9) are parallel to each other.

4. The degreasing roller device in the longitudinal drawing preheating zone according to claim 3, characterized in that: The degreasing roller (2) and the first preheating roller (8) are arranged in a staggered manner, the cross-sectional center of the first preheating roller (8) is located on the same straight line, and the cross-sectional center of the second preheating roller (9) is located on the same straight line.

5. The degreasing roller device in the longitudinal drawing preheating zone according to claim 3, characterized in that: A first gear (10) is provided at one end of the outer wall of the oil removal roller (2), and a second gear (11) meshing with the first gear (10) is provided at one end of the outer wall of the first preheating roller (8).

6. The degreasing roller device in the longitudinal drawing preheating zone according to claim 1, characterized in that: A self-aligning bearing seat (6) is provided at one end of the swing arm (3) away from the cylinder (4), and both ends of the oil removal roller (2) are matched and connected to the self-aligning bearing seat (6) through self-aligning bearings.

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