Supporting device

Abstract

The utility model relates to lithium battery diaphragm unwinding equipment, in particular to a supporting device. The supporting device is used for supporting a diaphragm roller and comprises a fixing seat, a supporting part and an adjusting mechanism, the supporting part is movably arranged on the fixing seat and provided with a groove matched with the peripheral shape of the roller, the adjusting mechanism is connected with the fixing seat, and the fixing seat is connected with the supporting part. And the adjusting mechanism is used for adjusting a gap between the supporting part and the roller. According to the scheme provided by the utility model, the height of the supporting part can be adjusted through the adjusting mechanism, so that a certain gap exists between the supporting part and the roller, rubber powder generated by scraping between the supporting part and the roller in the diaphragm winding process can be avoided, the roller can be supported through the supporting part when the diaphragm is wound, and the winding efficiency of the diaphragm is improved. And operators can conveniently stop the machine to replace the roller.

Description

Technical Field

[0001] The utility model relates to a lithium battery diaphragm unwinding device, in particular to a supporting device. Background Art

[0002] In the dry process (lamellar separation method), high molecular polymers, additives and other raw materials are mixed to form a uniform melt. During extrusion, a lamellar structure is formed under tensile stress. The lamellar structure is heat-treated to obtain a hard and elastic polymer film, which is then stretched at a certain temperature to form slit-shaped micropores. After heat setting, a microporous membrane is obtained, and then the lithium battery separator is wound through a unwinding device to facilitate large-scale storage or transportation.

[0003] The unwinding equipment uses a hollow round tube sleeved on the rotating shaft of the motor to wind the battery diaphragm on the hollow round tube. The existing supporting device supports the hollow round tube. During the winding process, the supporting device and the hollow round tube rub and scrape against each other, resulting in a large amount of rubber powder generated at the contact point between the supporting device and the hollow round tube. Under the action of static electricity, it is easily adsorbed onto the diaphragm, endangering the quality of the diaphragm. Utility Model Content

[0004] In order to overcome the problems existing in the related technology, the utility model provides a supporting device, which can adjust the height of the supporting part through an adjusting mechanism so that there is a certain gap between the supporting part and the roller, thereby avoiding scratches between the supporting part and the roller and preventing the roller from generating fine particles. When the diaphragm is rolled up, the roller can be supported by the supporting part, which is convenient for the operator to stop the machine to replace the roller.

[0005] The first aspect of the utility model provides a supporting device for supporting a diaphragm roller, comprising a fixed seat, a supporting portion and an adjusting mechanism, wherein the supporting portion can be movably arranged on the fixed seat, the supporting portion has a groove adapted to the outer peripheral shape of the roller, the adjusting mechanism is connected to the fixed seat, and the adjusting mechanism is used to adjust the gap between the supporting portion and the roller.

[0006] In some embodiments, the fixing seat includes a main body, a step flange is provided on one side of the main body, the support portion is located on the end face of the step flange, the end face of the step flange away from the support portion is connected to the adjustment mechanism, and one end of the adjustment mechanism is in contact with and abuts against the support portion.

[0007] In some embodiments, the adjustment mechanism includes a first screw rod, the step flange is provided with a threaded hole penetrating the step flange in a vertical direction, the first screw rod is movably arranged on the threaded hole, and an end of the first screw rod contacts and abuts against the support portion.

[0008] In some embodiments, the support portion includes a first plate body and a fastener, the first plate body is provided with a step groove arranged in a vertical direction, the step groove runs through both sides of the first plate body, the fastener passes through the step groove, and the fixing seat is provided with a threaded hole for the fastener to be screwed into, and when the fastener is fastened to the fixing seat, the head of the fastener contacts and abuts against the step groove.

[0009] In some embodiments, the fastener includes at least two second screws.

[0010] In some embodiments, it is characterized in that the first plate body is made of cold-rolled plate material.

[0011] In some embodiments, the support portion further includes a second plate body, the second plate body is connected to the first plate body via a third screw, and an end surface of the second plate body away from the first plate body is arranged in an arc shape.

[0012] In some embodiments, the second plate is made of engineering plastic.

[0013] In some embodiments, the engineering plastic is nylon.

[0014] The technical solution provided by the utility model may have the following beneficial effects:

[0015] It can be seen from the above technical scheme that the support device provided by the utility model includes a fixed seat, a support part and an adjustment mechanism. After determining the size of the roller of the unwinding mechanism, the height of the lifting support part is controlled by the adjustment mechanism according to the preset gap size requirement, so that there is a certain gap between the support part and the roller. During the unwinding mechanism is winding the diaphragm, the support part does not contact the roller, so as to avoid the roller and the support part from scratching during the winding process, resulting in the generation of fine particles such as rubber powder on the outer peripheral surface of the roller, and preventing the rubber powder particles from being adsorbed to the surface of the diaphragm under the action of static electricity. After the diaphragm winding work is completed, when the motor shaft of the unwinding mechanism is disconnected from the roller, the roller falls down into the groove of the support part. Since the gap between the support part and the roller is small, the movement inertia generated by the roller during the falling process will not vibrate, so as to ensure that the roller can be stably fixed on the groove of the support part, and realize the support function of the support part.

[0016] The above-mentioned gap design can avoid direct contact between the roller and the support part during the winding process, thereby reducing the friction force that needs to be overcome when the motor drives the roller to rotate, and effectively improving the output capacity of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0018] Figure 1 It is a structural schematic diagram of an unwinding mechanism shown in an embodiment of the utility model;

[0019] Figure 2 The utility model embodiment is shown Figure 1 The enlarged schematic diagram of point A in the middle;

[0020] Figure 3 is a cross-sectional view of a support device shown in an embodiment of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of a supporting device shown in an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1. Fixed seat; 10. Main body; 11. Step flange; 2. Support part; 21. Groove; 22. First plate; 220. Step groove; 23. Fastener; 230. Second screw; 24. Second plate; 3. Adjustment mechanism; 30. First screw; 100. Unwinding mechanism; 200. Support device; 300. Roller. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0025] The unwinding equipment uses a hollow round tube sleeved on the rotating shaft of the motor to wind the battery diaphragm on the hollow round tube. The existing supporting device supports the hollow round tube. During the winding process, the supporting device and the hollow round tube rub and scrape against each other, resulting in a large amount of rubber powder generated at the contact point between the supporting device and the hollow round tube. Under the action of static electricity, it is easily adsorbed onto the diaphragm, endangering the quality of the diaphragm.

[0026] In view of the above problems, an embodiment of the utility model provides a support device 200, which can adjust the height of the support part 2 through an adjustment mechanism 3, so that there is a certain gap between the support part 2 and the roller 300, so as to avoid the generation of rubber powder due to the scraping between the support part 2 and the roller 300 during the winding process of the diaphragm, and when the diaphragm is wound, the roller 300 can be supported by the support part 2, so that the operator can stop the machine to replace the roller 300.

[0027] The technical solution of the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0028] Figure 1 1 is a schematic structural diagram of an unwinding mechanism 100 according to an embodiment of the present utility model. Figure 2 The utility model embodiment is shown Figure 1 A magnified schematic diagram of center A.

[0029] An embodiment of the utility model provides a supporting device 200, including a fixed seat 1, a supporting portion 2 and an adjusting mechanism 3, wherein the supporting portion 2 can be movably arranged on the fixed seat 1, the supporting portion 2 has a groove 21 adapted to the outer peripheral shape of the roller 300, the adjusting mechanism 3 is connected to the fixed seat 1, and the adjusting mechanism 3 is used to adjust the gap between the supporting portion 2 and the roller 300.

[0030] Specifically, see Figure 1 and Figure 2 When the support device 200 in this embodiment is used, the fixing seat 1 is installed on the unwinding mechanism 100. After determining the size of the roller 300 of the unwinding mechanism 100, the height of the lifting support part 2 is controlled by the adjusting mechanism 3 according to the preset gap size requirement, so that there is a certain gap between the groove 21 and the roller 300. When the unwinding mechanism 100 is winding the diaphragm, the support part 2 does not contact the roller 300, so that the rotating roller 300 can be prevented from scratching the support part 2, resulting in the generation of rubber powder and other particles on the outer peripheral surface of the roller 300, thereby solving the problem that the rubber powder particles are adsorbed to the surface of the diaphragm under the action of static electricity. When the diaphragm winding work is completed, when the motor shaft of the unwinding mechanism 100 is disconnected from the roller 300, it falls downward into the groove 21 of the support part 2. Since the gap between the groove 21 and the roller 300 is small, the movement inertia generated by the roller 300 during the falling process will not vibrate, and the roller 300 will be firmly caught by the support part 2, thereby realizing the supporting function of the support part 2.

[0031] Figure 3 is a cross-sectional view of a support device 200 shown in an embodiment of the utility model, Figure 4 It is a three-dimensional schematic diagram of a supporting device 200 shown in an embodiment of the utility model.

[0032] Further, in order to facilitate the adjustment mechanism 3 to adjust the height of the support part 2 and facilitate the support part 2 to move on the fixing base 1, please refer to Figure 3 and Figure 4 The fixing seat 1 of the supporting device 200 includes a body 10, a step flange 11 is provided on one side of the body 10, the supporting part 2 is located on the end face of the step flange 11, the end face of the step flange 11 away from the supporting part 2 is connected with the adjusting mechanism 3, and one end of the adjusting mechanism 3 contacts and abuts against the supporting part 2. The supporting part 2 is placed between the end faces of the step flange 11, and one end of the adjusting mechanism 3 is used to abut against the supporting part 2, so as to adjust the height of the supporting part 2 in the vertical direction, so that a certain gap is formed between the supporting part 2 and the roller 300. In a preferred embodiment, the width of the gap formed between the supporting part 2 and the roller 300 can be 0.5mm, 1mm, 2mm, 3mm, 5mm, or 10mm. The gap can ensure that the roller 300 does not contact the supporting part 2 during the winding process of the diaphragm, thereby preventing the roller 300 from generating particles such as rubber powder due to scratching.

[0033] Furthermore, the adjustment mechanism 3 of the support device 200 includes a first screw rod 30, and the step flange 11 is provided with a threaded hole penetrating the step flange 11 in the vertical direction, and the first screw rod 30 is movably arranged on the threaded hole, and the end of the first screw rod 30 contacts and abuts against the support portion 2. The threaded section of the first screw rod 30 is screwed into the threaded hole and fixed by the threaded hole, and the end of the screw rod contacts and abuts against one end of the support portion 2, thereby raising the height of the support portion 2.

[0034] Furthermore, in order to facilitate the support part 2 to realize two different functions of fixation and movement, the support part 2 of the support device 200 includes a first plate body 22 and a fastener 23. The first plate body 22 is provided with a stepped groove 220 arranged in the vertical direction. The stepped groove 220 runs through both sides of the first plate body 22. The fastener 23 passes through the stepped groove 220. The fixing seat 1 is provided with a threaded hole for the fastener 23 to be screwed into. When the fastener 23 is fastened and matched with the fixing seat 1, the head of the fastener 23 contacts and abuts against the stepped groove 220. Specifically, the fastener 23 passes through the stepped groove 220 and is threadedly connected with the fixing seat 1. When the head of the fastener 23 abuts against the stepped groove 220, the support part 2 can be fixed on the fixing seat 1. By loosening the fastener 23, the support part 2 can be moved in the vertical direction, and the gap between the support part 2 and the roller 300 can be adjusted.

[0035] Furthermore, the fastener 23 of the supporting device 200 includes at least two second screw rods 230 .

[0036] Furthermore, the first plate body 22 of the supporting device 200 is made of cold-rolled plate material.

[0037] Furthermore, the support portion 2 of the support device 200 further includes a second plate 24 , which is connected to the first plate 22 via a third screw, and an end surface of the second plate 24 away from the first plate 22 is arranged in an arc shape.

[0038] By providing the first plate body 22 and the second plate body 24 , the second plate body 24 with different arc-shaped surfaces can be selected as the supporting body according to the outer circumferential size of the roller 300 , and has high disassembly and maintainability.

[0039] Furthermore, the second plate 24 of the support device 200 is made of engineering plastics. Engineering plastics can meet higher requirements in terms of mechanical properties, durability, corrosion resistance, heat resistance, etc., and are more convenient to process and can replace metal materials, reducing the overall weight of the support device 200, making it easier for operators to install it. In a preferred embodiment, the engineering plastics can be polycarbonate (PC), polyamide (PA), polyoxymethylene (POM), polyphenylene oxide (PPO), polyester (PBT), and polyphenylene sulfide (PPS).

[0040] Furthermore, the engineering plastic of the supporting device is nylon. In a preferred embodiment, the nylon material used is nylon 66, which has excellent mechanical properties, high mechanical strength, good toughness, good self-lubricating property, small friction coefficient, good elasticity, good fatigue resistance, good corrosion resistance, no mold, no fear of moth, and alkali resistance.

[0041] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A supporting device for supporting a membrane roller, characterized in that: It includes a fixed seat, a support part and an adjustment mechanism. The support part can be movably arranged on the fixed seat. The support part has a groove adapted to the outer peripheral shape of the roller. The adjustment mechanism is connected to the fixed seat and is used to adjust the gap between the support part and the roller.

2. The support device according to claim 1, characterized in that: The fixing seat includes a body, one side of the body is provided with a step flange, the support portion is located on the end surface of the step flange, an end surface of the step flange away from the support portion is connected to the adjustment mechanism, and one end of the adjustment mechanism contacts and abuts against the support portion.

3. The supporting device according to claim 2, characterized in that: The adjustment mechanism includes a first screw rod, the step flange is provided with a threaded hole penetrating the step flange in a vertical direction, the first screw rod is movably arranged on the threaded hole, and the end of the first screw rod contacts and abuts against the support portion.

4. The supporting device according to claim 1, characterized in that: The support portion includes a first plate body and a fastener. The first plate body is provided with a stepped groove arranged in the vertical direction. The stepped groove runs through both sides of the first plate body. The fastener passes through the stepped groove. The fixing seat is provided with a threaded hole for the fastener to be screwed into. When the fastener is fastened to the fixing seat, the head of the fastener contacts and abuts against the stepped groove.

5. The supporting device according to claim 4, characterized in that: The fastener includes at least two second screws.

6. The supporting device according to claim 5, characterized in that: The first plate body is made of cold-rolled plate material.

7. The supporting device according to claim 4, characterized in that: The support portion further includes a second plate body, the second plate body is connected to the first plate body via a third screw, and an end surface of the second plate body away from the first plate body is arranged in an arc shape.

8. The supporting device according to claim 7, characterized in that: The second plate body is made of engineering plastics.

9. The supporting device according to claim 8, characterized in that: The engineering plastic is nylon.

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