Lithium battery diaphragm winding and dust removing device

Abstract

The utility model relates to a lithium battery diaphragm winding and dust removing device. The device comprises a rack; the winding roller is rotationally mounted on the rack; the dust removal roller comprises a connecting rod, a rotating rod and a cleaning roller body; the two ends of the connecting rod penetrate through the rack and are detachably connected with fixing blocks. The rotating rod is rotationally connected to the connecting rod in a sleeving mode, and the cleaning roller body is detachably connected with the rotating rod; the cleaning roller body is in contact with the surface of the wound lithium battery diaphragm; and the air blowing assembly is mounted on the rack, is positioned above the winding roller and is used for blowing air to the surface of the lithium battery diaphragm. The dust removal device can remove dust on the lithium battery diaphragm in the winding process, and can clean the lithium battery diaphragm after the dust removal roller is detached, so that the dust removal effect is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery diaphragm winding equipment, and in particular to a lithium battery diaphragm winding and dust removal device. Background Art

[0002] In the structure of lithium batteries, the diaphragm is one of the key inner components. The diaphragm material is non-conductive. The main function of the diaphragm is to separate the positive and negative electrodes of the battery to prevent the two electrodes from contacting and short-circuiting. In addition, it also has the function of allowing electrolyte ions to pass through. In the production process of lithium battery diaphragms, after the lithium battery diaphragms are manufactured, they need to be rolled up in batches for processing and production. In the process of rolling up the lithium battery diaphragms, the usual method of rolling up is to use a reel to roll up the lithium battery diaphragms, and then pack the rolled lithium battery diaphragms for transportation.

[0003] When the lithium battery separator is rolled up, the lithium battery separator needs to be stretched and rolled up one circle at a time as the roll-up roller rotates. During the rolling process, dust may adhere to the surface of the lithium battery separator, and it will be difficult to remove dust from the rolled lithium battery separator. Therefore, it is necessary to provide a rolling device that can remove dust during the rolling process. Utility Model Content

[0004] Based on this, it is necessary to provide a lithium battery diaphragm winding and dust removal device, and its specific technical solution is as follows.

[0005] A lithium battery diaphragm winding and dust removal device, comprising:

[0006] frame;

[0007] The winding roller is rotatably mounted on the frame;

[0008] The dust removal roller comprises a connecting rod, a rotating rod and a cleaning roller body; both ends of the connecting rod respectively pass through the frame and are detachably connected to a fixing block; the rotating rod is rotatably sleeved on the connecting rod, and the cleaning roller body is detachably connected to the rotating rod; the cleaning roller body contacts the surface of the rolled lithium battery diaphragm;

[0009] The air blowing assembly is installed on the frame and located above the winding roller, and is used to blow air onto the surface of the lithium battery diaphragm.

[0010] Furthermore, the outer surface of the rotating rod is provided with a slot penetrating along its axial direction; the middle part of the cleaning roller body is provided with an axial hole, a block is provided in the axial hole, and the block moves along its axial direction to engage with the slot.

[0011] Furthermore, both ends of the cleaning roller body are respectively threadedly connected with fixing rings, and the fixing rings are against the rotating rod.

[0012] Furthermore, the outer ring of the cleaning roller body is provided with a cleaning brush, and the cleaning brush is made of rubber.

[0013] Furthermore, the air blowing assembly comprises:

[0014] Air collecting box, installed on the side of the frame;

[0015] A blower is installed on the air collecting box and connected to the air collecting box, and is used to transport gas in the air collecting box;

[0016] An air outlet pipe is connected to the air collecting box; the air outlet pipe extends along the length direction of the winding roller, and is provided with a plurality of air nozzles arranged along the extension direction thereof;

[0017] The air pump is installed on the air outlet pipe and is used to transport the other air in the air collecting box to the air outlet pipe.

[0018] Furthermore, the air outlet pipe includes an exhaust pipe and a U-shaped pipe, the exhaust pipe is connected to the air collecting box, the U-shaped pipe is connected to the exhaust pipe, the two branch pipe bodies of the U-shaped pipe are respectively located on both sides of the winding roller, and each branch pipe body is respectively provided with an air nozzle.

[0019] Furthermore, a pull-out collection box is installed at the bottom of the frame, and a collection port for collecting dust is provided at the top of the collection box.

[0020] Furthermore, there are two groups of dust removal rollers, which are staggered in height direction and respectively located on the upper and lower sides of the lithium battery separator.

[0021] Beneficial effects: The utility model provides a lithium battery diaphragm winding and dust removal device, which removes dust attached to the surface of the lithium battery diaphragm by bringing the dust removal roller into contact with the surface of the lithium battery diaphragm during the lithium battery diaphragm winding process, and cooperates with the air blowing assembly to blow air toward the surface of the lithium battery diaphragm to further improve the dust removal effect on the surface of the lithium battery diaphragm; and when the dust on the dust removal roller accumulates to a certain extent, the cleaning roller body can be quickly disassembled and cleaned by removing the fixing block and pulling out the connecting rod, which is easy to operate and avoids long-term dust accumulation on the surface of the cleaning roller body that affects the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the winding dust removal device;

[0024] Figure 2 The figure is a schematic diagram of the decomposition of the dust removal roller;

[0025] Figure 3 for Figure 2 A magnified schematic diagram of the middle A area;

[0026] Figure 4 is a schematic diagram of the structure of the air blast assembly;

[0027] Figure 5 This is a schematic diagram of the collection box.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Servo motor; 3. Winding roller; 4. Circular groove; 5. Connecting rod; 6. Fixed block; 7. Rotating rod; 8. Rotating groove; 9. Card slot; 10. Cleaning roller body; 11. Card block; 12. Cleaning brush; 13. Fixed ring; 14. Air collecting box; 15. Support plate; 16. Blower; 17. Air supply pipe; 18. Exhaust pipe; 19. Air pump; 20. U-shaped pipe; 21. Air nozzle; 22. Mounting groove; 23. Collecting box; 24. Slider; 25. Handle; 26. Support leg. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] Example

[0036] Reference Figure 1 As shown, this embodiment provides a lithium battery diaphragm winding and dust removal device, which includes a frame 1, a winding roller 3, a dust removal roller and a blast assembly. Specifically, the frame 1 includes two side panels, and the two ends of the winding roller 3 are rotatably mounted on the two side panels. A servo motor 2 is mounted on one of the side panels, and the servo motor 2 is transmission-connected to the winding roller 3 to drive the winding roller 3 to rotate so as to wind up the lithium battery diaphragm. The dust removal roller includes a connecting rod 5, a rotating rod 7 and a cleaning roller body 10. Referring to Figure 5 As shown, circular grooves 4 are respectively provided on the two side panels of the frame 1, and the two ends of the connecting rod 5 are respectively inserted into the circular grooves 4 on the two side panels and extend outward. The two outwardly extending ends of the connecting rod 5 are respectively threadedly connected with fixing blocks 6, and the fixing blocks 6 abut against the side panels to install the connecting rod 5 on the frame 1. A rotating groove 8 is provided in the middle of the rotating rod 7, so that the connecting rod 5 passes through the rotating groove 8, so that the rotating rod 7 is rotatably sleeved on the connecting rod 5, and the cleaning roller body 10 is detachably connected to the rotating rod 7. When the cleaning roller body 10 needs to be cleaned, the fixing blocks 6 at both ends of the connecting rod 5 are removed, the connecting rod 5 is pulled out, and then the cleaning roller body 10 is removed, so that the cleaning roller body 10 can be quickly disassembled and cleaned. The cleaning roller body 10 contacts the surface of the rolled lithium battery diaphragm, thereby removing dust adhering to the surface of the lithium battery diaphragm. The air blowing assembly is installed on the frame 1 and is located above the winding roller 3, and is used to blow air to the surfaces of the two battery separators, thereby removing the dust on the surface again at the winding roller 3 position.

[0037] The present embodiment provides a lithium battery diaphragm winding and dust removal device, which removes dust attached to the surface of the lithium battery diaphragm by bringing the dust removal roller into contact with the surface of the lithium battery diaphragm during the lithium battery diaphragm winding process, and cooperates with the blower assembly to blow air toward the surface of the lithium battery diaphragm to further improve the dust removal effect on the surface of the lithium battery diaphragm; and when the dust on the dust removal roller accumulates to a certain extent, the cleaning roller body 10 can be quickly disassembled and cleaned by removing the fixing block 6 and pulling out the connecting rod 5, which is easy to operate and avoids long-term accumulation of dust on the surface of the cleaning roller body 10 to affect the dust removal effect.

[0038] Specifically, refer to Figure 2 and Figure 3 As shown, the outer surface of the rotating rod 7 is provided with a slot 9 penetrating along its axial direction; the middle part of the cleaning roller body 10 is provided with an axial hole, and a block 11 is provided in the axial hole, and the block 11 is engaged with the slot 9 in a movable manner along its axial direction. The two ends of the cleaning roller are respectively threadedly connected with fixing rings 13, and the fixing rings 13 abut against the rotating rod 7, so as to relatively fix the cleaning roller body 10 and the rotating rod 7, and prevent the rotating rod 7 and the cleaning roller body 10 from relative movement in the axial direction. When the cleaning roller body 10 needs to be cleaned, the cleaning roller body 10 can be pulled out for cleaning by disassembling the fixing rings 13 at both ends. The rotating rod 7 is added between the cleaning roller body 10 and the connecting rod 5, and the material cost required for the cleaning roller body 10 is reduced while ensuring the outer diameter of the cleaning roller body 10. When the cleaning roller body 10 reaches the end of its life due to dust cleaning, it is convenient to replace a new cleaning roller body 10, thereby reducing the material cost.

[0039] Specifically, a cleaning brush 12 is provided on the outer ring of the cleaning roller body 10. The cleaning brush 12 is made of rubber material to avoid scratching the lithium battery diaphragm during the cleaning process.

[0040] Specifically, refer to Figure 4 As shown, the blowing assembly includes an air collecting box 14, a blower 16, an air outlet pipe and an air pump 19. The air collecting box 14 is installed on the side panel of the frame 1 and is located on the side of the frame 1. A support plate 15 is also installed on the side of the air collecting box 14. The blower 16 is installed on the support plate 15 and connected to the air collecting box 14 through the air supply pipe 17. The air is transported into the air collecting box 14 through the blower 16. The air outlet pipe is connected to the air collecting box 14, and the air outlet pipe extends along the length direction of the winding roller 3, and the air outlet pipe is provided with a plurality of air nozzles 21 arranged along the extension direction thereof. The air pump 19 is installed on the air outlet pipe, transports the gas in the air collecting box 14 to the air outlet pipe, and blows air to the lithium battery diaphragm at the position of the winding roller 3 through the air nozzle 21, thereby blowing off the dust adhering to the lithium battery diaphragm.

[0041] Specifically, the air outlet pipe includes an air extraction pipe 18 and a U-shaped pipe 20, the air pump 19 is installed on the air extraction pipe 18, and the air nozzle 21 is installed on the U-shaped pipe 20. The U-shaped pipe 20 includes two branch pipe bodies, which are respectively arranged on both sides of the winding roller 3. The air nozzles 21 on the two branch pipe bodies blow air to both sides of the winding roller 3, so as to better blow off the adhered dust.

[0042] Specifically, refer to Figure 5 As shown, a pull-out collection box 23 is installed at the bottom of the frame 1, and a collection port is opened at the top of the collection box 23 for collecting dust that is blown off or wiped off. When the dust accumulates to a certain amount, the collection box 23 is pulled out for cleaning.

[0043] Specifically, a mounting groove 22 is provided on the side plate of the frame 1, and sliders 24 are provided on both sides of the collection box 23. The sliders 24 are slidably installed in the mounting groove 22 to form a pull-out structure. A handle 25 is also provided at the end of the collection box 23 to facilitate the collection box 23 to be pulled out.

[0044] Specifically, support legs 26 are installed around the bottom of the frame 1, and the bottoms of these support legs 26 are frosted to prevent the rolling dust removal device from sliding during operation and improve stability.

[0045] Working principle:

[0046] One end of the lithium battery diaphragm is fixed on the winding roller 3, and the lithium battery diaphragm is passed between the two dust removal rollers. The servo motor 2 is used to drive the winding roller 3 to rotate for winding. During the winding process, the lithium battery diaphragm contacts the cleaning brush 12 on the surface of the dust removal roller, driving the dust removal roller to rotate and perform surface dust removal. At the same time, the air blowing assembly is used to blow air to the winding roller 3 to blow off the dust on the surface of the lithium battery diaphragm again. When the dust in the collection box 23 accumulates to a certain extent, the collection box 23 is pulled out to clean the dust inside. When a certain amount of dust adheres to the surface of the dust removal roller, making it impossible to perform normal dust removal operations, the dust removal roller is separated from the frame 1 by removing the block 11 and then pulling out the connecting rod 5, then removing the fixing ring 13 to pull out the cleaning roller body 10, and cleaning the cleaning roller body 10. After cleaning, the dust removal roller is installed again for dust removal operations.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A lithium battery diaphragm winding and dust removal device, characterized in that: include: frame; The winding roller is rotatably mounted on the frame; The dust removal roller comprises a connecting rod, a rotating rod and a cleaning roller body; both ends of the connecting rod respectively pass through the frame and are detachably connected to fixed blocks; the rotating rod is rotatably sleeved on the connecting rod, and the cleaning roller body is detachably connected to the rotating rod; The cleaning roller body is in contact with the surface of the rolled lithium battery separator; The air blowing assembly is installed on the frame and located above the winding roller, and is used to blow air onto the surface of the lithium battery diaphragm.

2. A lithium battery diaphragm winding and dust removal device according to claim 1, characterized in that: The outer surface of the rotating rod is provided with a clamping groove penetrating along its axial direction; the middle part of the cleaning roller body is provided with an axial hole, a clamping block is arranged in the axial hole, and the clamping block moves along its axial direction to clamp with the clamping groove.

3. A lithium battery diaphragm winding and dust removal device according to claim 2, characterized in that: Both ends of the cleaning roller body are respectively threadedly connected with fixing rings, and the fixing rings abut against the rotating rod.

4. A lithium battery diaphragm winding and dust removal device according to claim 1, characterized in that: The outer ring of the cleaning roller body is provided with a cleaning brush, and the cleaning brush is made of rubber.

5. A lithium battery diaphragm winding and dust removal device according to claim 1, characterized in that: The air blast assembly comprises: Air collecting box, installed on the side of the frame; A blower is installed on the air collecting box and connected to the air collecting box, and is used to transport gas in the air collecting box; An air outlet pipe is connected to the air collecting box; the air outlet pipe extends along the length direction of the winding roller, and is provided with a plurality of air nozzles arranged along the extension direction thereof; The air pump is installed on the air outlet pipe and is used to transport the other air in the air collecting box to the air outlet pipe.

6. A lithium battery diaphragm winding and dust removal device according to claim 5, characterized in that: The air outlet pipe includes an exhaust pipe and a U-shaped pipe, the exhaust pipe is connected to the air collecting box, the U-shaped pipe is connected to the exhaust pipe, the two branch pipe bodies of the U-shaped pipe are respectively located on both sides of the winding roller, and each branch pipe body is respectively provided with an air nozzle.

7. A lithium battery diaphragm winding and dust removal device according to claim 1, characterized in that: A pull-out collection box is installed at the bottom of the frame, and a collection port for collecting dust is provided on the top of the collection box.

8. A lithium battery diaphragm winding and dust removal device according to claim 1, characterized in that: There are two groups of dust removal rollers, which are staggered in height direction and respectively located at the upper and lower sides of the lithium battery separator.

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