Battery diaphragm paper winding device

Abstract

The utility model discloses a battery diaphragm paper winding device which comprises a mounting seat, a sliding rail, a first sliding block, a second sliding block, a paper ejection rod, a hollow rotating shaft, a paper winding pipe and a paper winding driving wheel, the paper rolling driving wheel is arranged at the top of the second sleeve and connected with the hollow rotating shaft, the bottom of the hollow rotating shaft is connected with the paper rolling pipe, a buffer spring is arranged in the first sleeve, the top of the paper ejecting rod abuts against the buffer spring, the paper ejecting rod sequentially penetrates through the paper rolling driving wheel, the hollow rotating shaft and the paper rolling pipe from top to bottom, and a round head structure is arranged at the top of the paper ejecting rod. A conical block is arranged at the bottom of the paper ejecting rod and used for abutting against the bottom of the paper tube. The paper winding tube can wind diaphragm paper under the action of the paper winding driving wheel to form a paper tube shape, after winding is completed, the paper ejection rod and the paper winding tube are synchronously matched to move downwards, the paper tube is inserted into a battery, and in the insertion process, the buffer spring can provide certain buffer acting force for the paper ejection rod, so that the paper tube is prevented from being damaged. Damage to the bottom of the paper tube due to excessive pressure is avoided.

Description

Technical Field

[0001] The utility model relates to the field of paper rolling devices, in particular to a battery diaphragm paper rolling device. Background Art

[0002] Battery separator paper is a thin film material used inside the battery, usually made of cellulose or other polymer materials. It is located between the positive and negative electrodes of the battery to play an isolation role and prevent the positive and negative electrodes from contacting and short-circuiting. The separator paper has a certain ion permeability, allowing ions in the internal electrolyte to pass through, thereby maintaining the normal electrochemical reaction of the battery.

[0003] In the prior art, during the processing of battery diaphragm paper, it is generally necessary to use a paper winding device to wind it into a paper tube shape and then insert it into the battery to better fit the internal space of the battery. However, in the process of inserting the paper tube-shaped diaphragm paper into the battery, since the diaphragm paper material is thin and fragile, it is easily damaged by the force of the ejector rod, resulting in damage to the isolation function of the diaphragm paper, affecting the production quality and safety of the battery.

[0004] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a battery diaphragm paper rolling device which is damage-resistant, has a stable structure and effectively improves product quality.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a battery diaphragm paper winding device, comprising a mounting seat, a slide rail, a first slider, a second slider, a first sleeve, a second sleeve, a paper lifting rod, a hollow rotating shaft, a paper winding tube and a paper winding driving wheel;

[0007] The slide rail is vertically arranged on the mounting seat, the first slider is arranged at the top of the slide rail, and the second slider is arranged in the middle of the slide rail, and the first slider and the second slider can slide along the extension direction of the slide rail respectively;

[0008] The first sleeve is connected to the first slider, the second sleeve is connected to the second slider, the hollow shaft passes through the second sleeve, and the hollow shaft is connected to the second sleeve via a ball bearing, and the hollow shaft can rotate relative to the second sleeve;

[0009] The paper roll driving wheel is arranged on the top of the second sleeve and is connected to the hollow rotating shaft. The paper roll driving wheel is used to drive the hollow rotating shaft to rotate. The bottom of the hollow rotating shaft is connected to the paper roll tube. The paper roll tube is used to roll the battery diaphragm paper into a paper tube;

[0010] A buffer spring is provided in the first sleeve, and the top of the paper pushing rod abuts against the buffer spring. The buffer spring is used to provide a downward elastic force for the paper pushing rod. The paper pushing rod passes through the paper roll driving wheel, the hollow rotating shaft and the paper roll tube from top to bottom in sequence. A conical block is provided at the bottom of the paper pushing rod, and the conical block is used to abut against the bottom of the paper tube.

[0011] According to the above technical solution, in the battery diaphragm paper rolling device, a limiting conical groove is provided at the bottom of the paper rolling tube, and the limiting conical groove is used to prevent the conical block from moving upward to the inside of the paper rolling tube.

[0012] By adopting the above technical solution, in the battery diaphragm paper rolling device, a support bracket is provided on the mounting seat directly below the paper rolling tube, and the support bracket is used to position and place cylindrical batteries.

[0013] Using the above technical solution, the battery diaphragm paper rolling device also includes two cam followers, the first slider and the second slider are respectively connected to one of the cam followers, and the cam follower is used to push the first slider or the second slider to slide along the slide rail under the action of external force.

[0014] According to the above technical solution, in the battery diaphragm paper rolling device, a fixing seat is provided below the second sleeve, a sliding bearing is provided in the fixing seat, and the sliding bearing is used to support the paper rolling tube.

[0015] According to the above technical solution, in the battery diaphragm paper winding device, a screw is provided on the top of the conical block, and the screw is connected to the bottom of the top paper rod through a thread.

[0016] According to the above technical solution, in the battery diaphragm paper rolling device, a round head structure is provided on the top of the paper top rod.

[0017] According to the technical solution, in the battery diaphragm paper winding device, a gap is formed between the paper top rod and the paper winding tube, and the size of the gap is 0.4-2 mm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The paper roll tube of the present invention can be used to roll up the diaphragm paper to form a paper tube shape under the action of the paper roll driving wheel. When the rolling is completed, the paper push rod and the paper roll tube move downward synchronously and insert the paper tube into the battery. During the insertion process, the buffer spring can provide a certain buffering force for the paper push rod to avoid damage to the bottom of the paper tube caused by excessive pressure; the limiting conical groove provided at the bottom of the paper roll tube can prevent the conical block at the bottom of the paper push rod from entering upward into the paper roll tube, thereby preventing the paper tube from being carried away from the battery by the paper roll tube; in addition, a gap is formed between the paper push rod and the paper roll tube. Such a setting can reduce the friction force on the paper push rod when moving in the paper roll tube, thereby improving the durability and service life of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the locally enlarged structure of area A in the middle. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0027] like Figure 1 and Figure 2 As shown, the embodiment of the present invention provides a battery diaphragm paper winding device, including a mounting base 1, a slide rail 2, a first slider 31, a second slider 32, a first sleeve 41, a second sleeve 42, a paper lifting rod 5, a hollow rotating shaft 6, a paper winding tube 7 and a paper winding driving wheel 8;

[0028] The slide rail 2 is vertically mounted on the mounting base 1. The first slider 31 is mounted on the top of the slide rail 2, and the second slider 32 is mounted in the middle of the slide rail 2. The first slider 31 and the second slider 32 can slide along the extension direction of the slide rail 2, respectively. This arrangement provides stable guidance for the first slider 31 and the second slider 32 during sliding, preventing jitter or offset and improving sliding accuracy. The first sleeve 41 is connected to the first slider 31, and the second sleeve 42 is connected to the second slider 32. The hollow shaft 6 passes through the second sleeve 42 and is connected to the second sleeve 42 via a ball bearing 61. The hollow shaft 6 can rotate relative to the second sleeve 42. This arrangement reduces the friction experienced by the hollow shaft 6 during rotation.

[0029] The paper roll driving wheel 8 is arranged at the top of the second sleeve 42 and is connected to the hollow rotating shaft 6. The paper roll driving wheel 8 is used to drive the hollow rotating shaft 6 to rotate. The bottom of the hollow rotating shaft 6 is connected to the paper roll tube 7. The paper roll tube 7 is used to roll the battery diaphragm paper into a paper tube. The paper roll driving wheel 8 can drive the hollow rotating shaft 6 to rotate under the external rotational force, and the bottom of the hollow rotating shaft 6 is connected to the paper roll tube 7, which can roll the battery diaphragm paper under the rotation to form a paper tube shape. It should be noted that after the winding is completed, the bottom of the paper tube can be sealed by an additional ironing device.

[0030] A buffer spring 9 is provided in the first sleeve 41, and the top of the paper-pushing rod 5 abuts against the buffer spring 9. The buffer spring 9 is used to provide a downward elastic force for the paper-pushing rod 5. The paper-pushing rod 5 passes through the paper roll driving wheel 8, the hollow rotating shaft 6 and the paper roll tube 7 from top to bottom. A conical block 51 is provided at the bottom of the paper-pushing rod 5, and the conical block 51 is used to abut against the bottom of the paper tube. When the battery diaphragm paper is completed and wound to form a paper tube, the paper tube 7 and the paper top rod 5 move downward synchronously along the slide rail 2 under the cooperation of the first slider 31 and the second slider 32, and insert the paper tube into the battery. When the paper tube is inserted to a predetermined depth, the paper tube 7 stops moving downward, and the paper top rod 5 continues to move downward until the conical block 51 at its bottom abuts against the bottom of the paper tube. At this time, the buffer spring 9 can provide a certain buffering force to the paper top rod 5 to prevent the pressure of the paper top rod 5 from being too large and causing pressure damage to the bottom of the paper tube, that is, the paper tube is gently pressed to fix it. Subsequently, the paper tube 7 begins to move upward with the action of the second slider 32 and separates from the paper tube, and the paper tube is fixed inside the battery under the action of the paper top rod 5. Finally, the paper top rod 5 withdraws from the paper tube as the first slider 31 moves upward, thereby completing the insertion process of the battery diaphragm paper, so that the paper tube remains firmly in the battery for isolation.

[0031] Furthermore, a limiting conical groove 70 is provided at the bottom of the paper roll tube 7, and the limiting conical groove 70 is used to prevent the conical block 51 from moving upward into the inside of the paper roll tube 7, thereby ensuring that the paper tube remains in a fixed position after the battery is inserted and does not move upward with the paper roll tube 7.

[0032] Furthermore, a support bracket 11 is provided on the mounting base 1 directly below the paper roll tube 7. The support bracket 11 is used to position and place the cylindrical battery. The support bracket 11 can fix the position of the battery so that the diaphragm paper tube can be accurately inserted into the battery, with precise positioning, effectively improving the assembly quality of the battery diaphragm paper.

[0033] Furthermore, it also includes two cam followers 30, the first slider 31 and the second slider 32 are respectively connected to one of the cam followers 30, and the cam follower 30 is used to push the first slider 31 or the second slider 32 to slide along the slide rail 2 under the action of external force; the cam follower 30 can be connected to the external arc track, thereby converting the rotational motion into a linear sliding motion, and the two cam followers 30 are respectively connected to the first slider 31 and the second slider 32, and the two cam followers 30 can independently control the movement of the paper push rod 5 and the paper roll tube 7 at different stages to achieve step-by-step or synchronous operation during the insertion process.

[0034] Furthermore, a fixing seat 12 is provided under the second sleeve 42, and a sliding bearing 13 is provided inside the fixing seat 12. The sliding bearing 13 is used to support the paper roll tube 7. Such a setting can prevent the paper roll tube 7 from being offset or shaking during the movement, thereby improving the accuracy of the diaphragm paper winding and insertion process.

[0035] Furthermore, a screw 510 is provided at the top of the conical block 51, and the screw 510 is connected to the bottom of the top paper rod 5 through a thread. Such a setting can facilitate the adjustment of the size of the conical block 51 according to the situation to adapt to diaphragm paper tubes of different diameters.

[0036] Furthermore, a round head structure 50 is provided on the top of the paper lifting rod 5. The round head structure 50 can improve the stability of the contact between the paper lifting rod 5 and the buffer spring 9, and prevent the paper lifting rod 5 from shaking or deflecting due to uneven force.

[0037] Furthermore, a gap 500 is formed between the paper push rod 5 and the paper roll tube 7. The gap 500 is 0.4-2 mm. In this embodiment, the gap 500 is 1 mm. This configuration allows the paper push rod 5 to directly contact the inner wall of the paper roll tube 7, reducing the friction experienced by the paper push rod 5 when moving within the paper roll tube 7. It should be noted that the gap 500 should not be too large to prevent the paper push rod 5 from shaking or deflecting within the paper roll tube 7, thereby affecting the insertion accuracy of the diaphragm paper.

[0038] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery separator paper rolling device, characterized in that: It includes a mounting seat, a slide rail, a first slider, a second slider, a first sleeve, a second sleeve, a paper lifting rod, a hollow rotating shaft, a paper reel tube and a paper reel driving wheel; The slide rail is vertically arranged on the mounting seat, the first slider is arranged at the top of the slide rail, and the second slider is arranged in the middle of the slide rail, and the first slider and the second slider can slide along the extension direction of the slide rail respectively; The first sleeve is connected to the first slider, the second sleeve is connected to the second slider, the hollow shaft passes through the second sleeve, and the hollow shaft is connected to the second sleeve via a ball bearing, and the hollow shaft can rotate relative to the second sleeve; The paper roll driving wheel is arranged on the top of the second sleeve and is connected to the hollow rotating shaft. The paper roll driving wheel is used to drive the hollow rotating shaft to rotate. The bottom of the hollow rotating shaft is connected to the paper roll tube. The paper roll tube is used to roll the battery diaphragm paper into a paper tube; A buffer spring is provided in the first sleeve, and the top of the paper pushing rod abuts against the buffer spring. The buffer spring is used to provide a downward elastic force for the paper pushing rod. The paper pushing rod passes through the paper roll driving wheel, the hollow rotating shaft and the paper roll tube from top to bottom in sequence. A conical block is provided at the bottom of the paper pushing rod, and the conical block is used to abut against the bottom of the paper tube.

2. The battery separator paper winding device according to claim 1, characterized in that: A limiting conical groove is provided at the bottom of the paper rolling tube, and the limiting conical groove is used to prevent the conical block from moving upward to the inside of the paper rolling tube.

3. The battery separator paper winding device according to claim 1, characterized in that: A support bracket is provided on the mounting seat just below the paper roll tube, and the support bracket is used for positioning and placing cylindrical batteries.

4. The battery separator paper winding device according to claim 1, characterized in that: It also includes two cam followers, the first slider and the second slider are respectively connected to one of the cam followers, and the cam followers are used to push the first slider or the second slider to slide along the slide rail under the action of external force.

5. The battery separator paper winding device according to claim 1, characterized in that: A fixing seat is provided below the second sleeve, a sliding bearing is provided in the fixing seat, and the sliding bearing is used to support the paper rolling tube.

6. The battery separator paper winding device according to claim 1, characterized in that: A screw rod is provided on the top of the conical block, and the screw rod is connected to the bottom of the paper-lifting rod through a thread.

7. The battery separator paper winding device according to claim 1, characterized in that: The top of the paper-lifting rod is provided with a round head structure.

8. The battery separator paper winding device according to claim 1, characterized in that: A gap is formed between the paper lifting rod and the paper rolling tube, and the size of the gap is 0.4-2 mm.

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