Coating defoaming device for lithium battery diaphragm

Abstract

The utility model discloses a coating defoaming device for a lithium battery diaphragm, particularly relates to the field of lithium battery diaphragm coating, and comprises a processing table, two rotating rollers are rotatably mounted on the inner wall of the processing table, a motor is arranged on one side of each rotating roller, the motor is fixedly mounted on the outer wall of the processing table, and a coating film is rotatably mounted on the outer walls of the two rotating rollers. A coating roller is fixedly mounted at the top of the processing table, a material box is fixedly mounted at the top of the processing table, and a roller clamp defoaming mechanism is arranged at the bottom of the material box; the roller clamp defoaming mechanism and the scraping mechanism are arranged, the two clamping rollers are arranged at the discharging position of the coating material, the coating material is clamped and extruded through the two clamping rollers, the coating material is pressed and clamped during discharging, bubbles contained in the coating material are crushed, the coating material is completely scraped, and the coating material is completely scraped. And the coating effect of the lithium battery diaphragm is prevented from being influenced by bubbles contained in the coating material during coating.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery diaphragm coating, and more specifically, to a coating and defoaming device for lithium battery diaphragms. Background Art

[0002] With the rapid development of electric vehicles, renewable energy and other fields, lithium batteries are being widely used as an important energy storage device. The performance and safety of lithium batteries depend largely on the diaphragm inside them. Meta-aramid is a polymer material with high temperature stability and excellent electrochemical properties, so it is widely used in the preparation of lithium battery diaphragms.

[0003] Chinese utility model patent CN220346336U discloses a lithium battery separator coating device, which uses a coating roller to roll the coating liquid on the meta-aramid lithium battery separator evenly, so that the coating liquid can be evenly dispersed and spread on the meta-aramid lithium battery separator, ensuring the coating quality of the meta-aramid lithium battery separator;

[0004] However, the above technology can only perform coating work. Since there is no defoaming structure for the coating material, the bubbles contained in the coating material during coating affect the coating effect of the lithium battery separator, causing the lithium battery separator to be unable to be used normally.

[0005] In view of the above technical defects, a solution is now provided. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a coating and defoaming device for lithium battery diaphragms, which is achieved by arranging a roller clamping defoaming mechanism, and arranging two clamping rollers at the position where the coating material is unloaded, and then clamping and squeezing the coating material by the two clamping rollers, and pressing and clamping the coating material when unloading, thereby crushing the bubbles contained in the coating material, avoiding the bubbles contained in the coating material during coating affecting the coating effect of the lithium battery diaphragm, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coating and defoaming device for lithium battery separators, comprising a processing table, two rollers are rotatably installed on the inner wall of the processing table, a motor is provided on one side of the roller, the motor is fixedly installed on the outer wall of the processing table, a coating film is rotatably installed on the outer wall of the two rollers, a coating roller is fixedly installed on the top of the processing table, a material box is fixedly installed on the top of the processing table, and a roller clamp defoaming mechanism is provided at the bottom of the material box;

[0008] The roller clamp defoaming mechanism includes a first pulley fixedly mounted on one side of a rotating roller, the first pulley is rotatably mounted on the outer wall of a processing table, a synchronous belt is rotatably mounted on the outer wall of the first pulley, a second pulley is rotatably mounted on one side of the synchronous belt, and the second pulley is rotatably mounted on the outer wall of the processing table.

[0009] In a preferred embodiment, a first gear is fixedly mounted on the outer wall of the second pulley, the first gear is arranged in a vertical state, a first straight roller is fixedly mounted on one side of the first gear, the first straight roller is rotatably mounted on the inner wall of the processing table, and a first clamping roller is fixedly mounted on the outer wall of the first straight roller;

[0010] A second gear is meshed on one side of the first gear, a second straight roller is fixedly installed on one side of the second gear, the second straight roller is rotatably installed on the inner wall of the processing table, and a second clamping roller is fixedly installed on the outer wall of the second straight roller.

[0011] In a preferred embodiment, the second clamping roller and the first clamping roller are symmetrically arranged, and the second clamping roller, the first clamping roller and the bottom of the material box are parallel to each other.

[0012] In a preferred embodiment, a scraper mechanism is provided at the bottom of the second clamping roller and the first clamping roller, and the scraper mechanism includes a first pull wheel fixedly mounted on the outer wall of the second gear, a pull ring belt is rotatably mounted on the outer wall of the first pull wheel, a second pull wheel is rotatably mounted on the bottom of the pull ring belt, a reciprocating threaded rod is fixedly mounted on one side of the second pull wheel, and the reciprocating threaded rod is rotatably mounted on the top of the processing table.

[0013] In a preferred embodiment, the outer wall of the reciprocating threaded rod is threadedly connected to a push-pull plate, which is arranged horizontally. Two scraping strips are fixedly installed on the top of the push-pull plate. The two scraping strips are slidably installed on the top of the processing table. The two scraping strips are arranged in an inclined state, and the tops of the two scraping strips are respectively in contact with the bottoms of the second clamping roller and the first clamping roller.

[0014] Technical effects and advantages of the utility model:

[0015] The utility model provides a roller clamping and defoaming mechanism and a scraping mechanism, wherein the rotating roller drives the first pulley so that the synchronous belt drives the second pulley to rotate synchronously clockwise, and the second pulley drives the first gear so that the first straight roller drives the first clamping roller to rotate synchronously clockwise, and the first gear drives the second gear to rotate counterclockwise, and then the second gear drives the second straight roller so that the second clamping roller rotates synchronously counterclockwise, and then the first clamping roller and the second clamping roller rotate respectively to receive the coating material sent from the bottom of the material box and squeeze it in the middle, so as to facilitate the rolling and elimination of bubbles in the coating material, and avoid the bubbles contained in the coating material during coating affecting the coating effect of the lithium battery diaphragm. At the same time, the first pull wheel driven by the second gear makes the second pull wheel rotate synchronously through the pull ring belt, and then the second pull wheel drives the reciprocating threaded rod so that the push-pull plate drives the two scraping strips to scrape the bottom of the first clamping roller and the second clamping roller reciprocatingly respectively, so as to facilitate the scraping of the coating material attached to the first clamping roller and the second clamping roller due to clamping and rolling, so that the crushed and defoamed coating material falls completely. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a front view of the utility model.

[0018] Figure 3 It is a partial cross-sectional view of the utility model.

[0019] Figure 4 For this utility model Figure 3 A-section structure enlarged view.

[0020] Figure 5 It is a partial cross-sectional view of the scraping mechanism in the utility model.

[0021] The accompanying drawings are marked as follows: 1. processing table; 2. rotating roller; 3. motor; 4. coating film; 5. coating roller; 6. material box; 7. roller clamp and defoaming mechanism; 71. first pulley; 72. synchronous belt; 73. second pulley; 74. first gear; 75. first straight roller; 76. first clamping roller; 77. second gear; 78. second straight roller; 79. second clamping roller; 8. scraping mechanism; 81. first pulley; 82. pull ring belt; 83. second pulley; 84. reciprocating threaded rod; 85. push-pull plate; 86. scraping strip. DETAILED DESCRIPTION

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

[0023] Refer to the instruction manual Figure 1 - Figure 5 , a coating and defoaming device for lithium battery separators, such as Figure 1 and Figure 2 As shown, it includes a processing table 1, two rollers 2 are rotatably installed on the inner wall of the processing table 1, a motor 3 is provided on one side of the roller 2, the motor 3 is fixedly installed on the outer wall of the processing table 1, a coating film 4 is rotatably installed on the outer wall of the two rollers 2, a coating roller 5 is fixedly installed on the top of the processing table 1, a material box 6 is fixedly installed on the top of the processing table 1, and a roller clamp defoaming mechanism 7 is provided at the bottom of the material box 6;

[0024] like Figure 3 and Figure 4 As shown, the roller clamp defoaming mechanism 7 includes a first pulley 71 fixedly mounted on one side of the rotating roller 2, the first pulley 71 is rotatably mounted on the outer wall of the processing table 1, and the first pulley 71 is driven to rotate synchronously clockwise through the rotation of the rotating roller 2, a synchronous belt 72 is rotatably mounted on the outer wall of the first pulley 71, a second pulley 73 is rotatably mounted on one side of the synchronous belt 72, and the second pulley 73 is rotatably mounted on the outer wall of the processing table 1, and then the first pulley 71 drives the synchronous belt 72 to make the second pulley 73 rotate synchronously clockwise.

[0025] like Figure 3 and Figure 4 As shown, a first gear 74 is fixedly mounted on the outer wall of the second pulley 73, and the first gear 74 is arranged in a vertical state, so that the second pulley 73 drives the first gear 74 to rotate clockwise, and a first straight roller 75 is fixedly mounted on one side of the first gear 74, and the first straight roller 75 is rotatably mounted on the inner wall of the processing table 1, and a first clamping roller 76 is fixedly mounted on the outer wall of the first straight roller 75, that is, the first gear 74 drives the first straight roller 75 to make the first clamping roller 76 rotate clockwise synchronously;

[0026] like Figure 3 and Figure 4 As shown, one side of the first gear 74 is meshed with the second gear 77, one side of the second gear 77 is fixedly installed with a second straight roller 78, the second straight roller 78 is rotatably installed on the inner wall of the processing table 1, and the outer wall of the second straight roller 78 is fixedly installed with a second clamping roller 79, and the first gear 74 drives the second gear 77 to rotate counterclockwise, and then the second gear 77 drives the second straight roller 78 so that the second clamping roller 79 rotates counterclockwise synchronously.

[0027] like Figure 3 and Figure 4 As shown, the second clamping roller 79 and the first clamping roller 76 are symmetrically arranged, and the second clamping roller 79 and the first clamping roller 76 are parallel to the bottom of the material box 6, so that the first clamping roller 76 and the second clamping roller 79 rotate respectively to receive the coating material sent from the bottom of the material box 6 and squeeze it in the middle, so as to facilitate the crushing and elimination of bubbles in the coating material, and avoid the bubbles contained in the coating material during coating to affect the coating effect of the lithium battery diaphragm.

[0028] like Figure 3 , Figure 4 and Figure 5 As shown, a scraper mechanism 8 is provided at the bottom of the second clamping roller 79 and the first clamping roller 76, and the scraper mechanism 8 includes a first pull wheel 81 fixedly mounted on the outer wall of the second gear 77, a pull ring belt 82 is rotatably mounted on the outer wall of the first pull wheel 81, and a second pull wheel 83 is rotatably mounted on the bottom of the pull ring belt 82, so that when the second gear 77 rotates, the first pull wheel 81 is driven to rotate synchronously, that is, the first pull wheel 81 drives the pull ring belt 82 to make the second pull wheel 83 rotate synchronously, and a reciprocating threaded rod 84 is fixedly mounted on one side of the second pull wheel 83, and the reciprocating threaded rod 84 is rotatably mounted on the top of the processing table 1, and then the second pull wheel 83 drives the reciprocating threaded rod 84 to rotate.

[0029] like Figure 5 As shown, the outer wall of the reciprocating threaded rod 84 is threadedly connected with a push-pull plate 85, and the push-pull plate 85 is arranged horizontally. Two scraping strips 86 are fixedly installed on the top of the push-pull plate 85, and the two scraping strips 86 are slidably installed on the top of the processing table 1. The two scraping strips 86 are arranged in an inclined state, and the tops of the two scraping strips 86 are respectively in contact with the bottoms of the second clamping roller 79 and the first clamping roller 76. The push-pull plate 85 is driven to move back and forth by the rotation of the reciprocating threaded rod 84, and the push-pull plate 85 drives the two scraping strips 86 to reciprocate synchronously, and then the two scraping strips 86 reciprocate and translate the bottoms of the first clamping roller 76 and the second clamping roller 79 respectively, so as to scrape off the coating material attached to the first clamping roller 76 and the second clamping roller 79 due to clamping and rolling, so that all the coating materials after crushing and defoaming fall down.

[0030] The working process and principle of the utility model are as follows:

[0031] The first pulley 71 is driven to rotate synchronously clockwise by the rotation of the rotating roller 2, and then the first pulley 71 drives the synchronous belt 72 to make the second pulley 73 rotate synchronously clockwise, and then the second pulley 73 drives the first gear 74 to rotate clockwise, that is, the first gear 74 drives the first straight roller 75 to make the first clamping roller 76 rotate synchronously clockwise, and the first gear 74 drives the second gear 77 to rotate counterclockwise, and then the second gear 77 drives the second straight roller 78 to make the second clamping roller 79 rotate synchronously counterclockwise, and then the first clamping roller 76 and the second clamping roller 79 rotate respectively to receive the coating material sent from the bottom of the material box 6 and squeeze it in the middle, so as to facilitate the rolling and elimination of bubbles in the coating material, and avoid the bubbles contained in the coating material during coating affecting the coating effect of the lithium battery diaphragm;

[0032] At the same time, when the second gear 77 rotates, it drives the first pull wheel 81 to rotate synchronously, that is, the first pull wheel 81 drives the pull ring belt 82 to make the second pull wheel 83 rotate synchronously, and then the second pull wheel 83 drives the reciprocating threaded rod 84 to rotate, and the rotation of the reciprocating threaded rod 84 drives the push-pull plate 85 to move back and forth, and the push-pull plate 85 drives the two scraping strips 86 to reciprocate synchronously, and then the two scraping strips 86 respectively scrape the bottom of the first clamping roller 76 and the second clamping roller 79 in a reciprocating and translational manner, so as to scrape off the coating material attached to the first clamping roller 76 and the second clamping roller 79 due to clamping and rolling, so that the crushed and defoamed coating material can all fall down.

[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0034] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A coating and defoaming device for lithium battery separators, comprising a processing table (1), characterized in that: Two rollers (2) are rotatably mounted on the inner wall of the processing table (1), a motor (3) is provided on one side of the rollers (2), the motor (3) is fixedly mounted on the outer wall of the processing table (1), a coating film (4) is rotatably mounted on the outer walls of the two rollers (2), a coating roller (5) is fixedly mounted on the top of the processing table (1), a material box (6) is fixedly mounted on the top of the processing table (1), and a roller clamp defoaming mechanism (7) is provided at the bottom of the material box (6); The roller clamp defoaming mechanism (7) comprises a first pulley (71) fixedly mounted on one side of a rotating roller (2); the first pulley (71) is rotatably mounted on the outer wall of a processing table (1); a synchronous belt (72) is rotatably mounted on the outer wall of the first pulley (71); a second pulley (73) is rotatably mounted on one side of the synchronous belt (72); and the second pulley (73) is rotatably mounted on the outer wall of the processing table (1).

2. A coating and defoaming device for lithium battery separator according to claim 1, characterized in that: A first gear (74) is fixedly mounted on the outer wall of the second pulley (73); the first gear (74) is arranged in a vertical state; a first straight roller (75) is fixedly mounted on one side of the first gear (74); the first straight roller (75) is rotatably mounted on the inner wall of the processing table (1); a first clamping roller (76) is fixedly mounted on the outer wall of the first straight roller (75); A second gear (77) is meshed with one side of the first gear (74), a second straight roller (78) is fixedly mounted on one side of the second gear (77), the second straight roller (78) is rotatably mounted on the inner wall of the processing table (1), and a second clamping roller (79) is fixedly mounted on the outer wall of the second straight roller (78).

3. A coating and defoaming device for lithium battery separator according to claim 2, characterized in that: The second clamping roller (79) and the first clamping roller (76) are arranged symmetrically to each other, and the second clamping roller (79) and the first clamping roller (76) are arranged parallel to each other and to the bottom of the material box (6).

4. A coating and defoaming device for lithium battery separator according to claim 3, characterized in that: A scraper mechanism (8) is provided at the bottom of the second clamping roller (79) and the first clamping roller (76), and the scraper mechanism (8) includes a first pull wheel (81) fixedly mounted on the outer wall of the second gear (77), a pull ring belt (82) is rotatably mounted on the outer wall of the first pull wheel (81), a second pull wheel (83) is rotatably mounted on the bottom of the pull ring belt (82), a reciprocating threaded rod (84) is fixedly mounted on one side of the second pull wheel (83), and the reciprocating threaded rod (84) is rotatably mounted on the top of the processing table (1).

5. A coating and defoaming device for lithium battery separator according to claim 4, characterized in that: The outer wall of the reciprocating threaded rod (84) is threadedly connected with a push-pull plate (85), and the push-pull plate (85) is arranged horizontally. Two scraping strips (86) are fixedly installed on the top of the push-pull plate (85), and the two scraping strips (86) are slidably installed on the top of the processing table (1). The two scraping strips (86) are arranged in an inclined state, and the tops of the two scraping strips (86) are respectively in contact with the bottoms of the second clamping roller (79) and the first clamping roller (76).

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