Membrane collecting device for lithium battery diaphragm production

Abstract

The utility model relates to the technical field of lithium battery diaphragms, and discloses a diaphragm collecting device for lithium battery diaphragm production, which comprises a base, a fixing plate is fixed on the top of the base, and a motor is fixed on the left side of the fixing plate. When the lithium battery diaphragm needs to be wound, a sliding plate is pulled rightwards, a clamping rod is separated from a through hole of a rotating disc, the rotating disc is rotated at the moment, a connecting rod drives an arc-shaped clamping plate to move, personnel can place the diaphragm into a limiting groove of a winding roller, the rotating disc is loosened at the moment, and under the action of a first spring, the surface of the arc-shaped clamping plate can abut against the diaphragm; the diaphragm does not need to be held by a person in the winding process, accidents of the person can be prevented, a sliding plate is loosened, a clamping rod enters a through hole of a rotary disc, the rotary disc is limited, and the situation that the rotary disc deviates due to centrifugal force generated when a winding roller rotates can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery diaphragms, in particular to a film collecting device for producing lithium battery diaphragms. Background Art

[0002] In the structure of lithium batteries, the diaphragm is one of the key internal components. The performance of the diaphragm determines the interface structure and internal resistance of the battery, and directly affects the battery's capacity, cycle and safety performance. A diaphragm with excellent performance plays an important role in improving the overall performance of the battery. 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. The diaphragm material is non-conductive, and its physical and chemical properties have a great influence on the performance of the battery. Different types of batteries use different diaphragms. For lithium battery series, since the electrolyte is an organic solvent system, a diaphragm material that is resistant to organic solvents is required, and a high-strength thin-film polyolefin porous membrane is generally used.

[0003] When the existing lithium battery diaphragm is rolled up, a person needs to manually hold the diaphragm on the surface of the winding roller so that the winding roller can roll up the diaphragm. However, this operation is dangerous and not conducive to safe operation by personnel. Utility Model Content

[0004] The purpose of the utility model is to provide a film collecting device for producing lithium battery diaphragms to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a film-receiving device for producing lithium battery diaphragms, comprising a base, a fixing plate is fixed on the top of the base, a motor is fixed on the left side of the fixing plate, the output shaft of the motor passes through the fixing plate, a winding roller is rotatably connected to the right side of the fixing plate, the left end of the winding roller is fixedly connected to the output shaft of the motor, a limiting groove is provided on the surface of the winding roller, an annular groove is provided on the surface of the winding roller, a through hole is provided in the annular groove of the winding roller, a fixing component is provided on the surface of the winding roller, and the fixing component comprises:

[0006] The arc-shaped clamping plate is slidably connected in the limiting groove of the winding roller, and a spring is fixed on the surface of the arc-shaped clamping plate, and one end of the spring is away from the arc-shaped clamping plate and is fixed on the inner wall of the limiting groove of the winding roller. The inner wall of the annular groove of the winding roller is rotatably connected with a turntable, and a connecting rod is fixed on the side of the turntable away from the fixed plate, and one end of the connecting rod away from the turntable passes through the through hole of the winding roller and is fixed to the surface of the arc-shaped clamping plate. A through hole is opened on the surface of the turntable, and the fixing assembly also includes a limiting piece. When the turntable is rotated, the connecting rod drives the arc-shaped clamping plate to move, thereby placing the diaphragm into the limiting groove of the winding roller. At this time, the turntable is released and the surface of the arc-shaped clamping plate will contact the diaphragm.

[0007] Preferably, the limiting member includes a slide plate, which is penetrated by the winding roller and is slidably connected to the winding roller, the winding roller is penetrated by a stabilizing plate, the stabilizing plate is fixedly connected to the winding roller, a side of the stabilizing plate close to the slide plate is fixed with spring 2, one end of the spring 2 away from the stabilizing plate is fixed to the surface of the slide plate, a clamping rod is fixed to the side of the slide plate away from the spring 2, one end of the clamping rod away from the slide plate passes through the through hole of the turntable, the slide plate is pulled to the right, so that the clamping rod disengages from the through hole of the turntable, and the turntable is rotated at this time. When the arc-shaped clamping plate contacts the diaphragm, the slide plate is released, and the clamping rod enters the through hole of the turntable to limit the turntable.

[0008] Preferably, a cavity is provided inside the base, and a threaded rod is rotatably connected to the inner wall of the cavity of the base, an output shaft of a rocker arm passes through the left side of the base, and the right end of the output shaft of the rocker arm is fixedly connected to the left end of the threaded rod, a threaded block passes through the threaded rod, and the threaded block is threadedly connected to the threaded rod, the top of the threaded block passes through the base, and the threaded block is slidably connected to the base, and a movable plate is fixed on the top of the threaded block, and the rocker is rotated, and the threaded rod rotates to drive the threaded block to move to the right, so that the movable plate drives the disc and the resistance plate to separate from the winding roller.

[0009] Preferably, a groove is provided at the right end of the winding roller, and a second resistance plate is fixed to the inner wall of the groove of the winding roller. Through the first resistance plate, the second resistance plate and the disc, the rotation of the second resistance plate will contact the surface of the first resistance plate, thereby driving the disc to rotate.

[0010] Preferably, a disc is rotatably connected to the left side of the movable plate, and a first abutment plate is fixed to the left side of the disc.

[0011] Preferably, the slide plate and the stabilizing plate are both circular.

[0012] Compared with the prior art, the utility model provides a film collecting device for lithium battery separator production, which has the following beneficial effects:

[0013] 1. The film winding device for the production of lithium battery diaphragms is provided with a fixed component. When the lithium battery diaphragm needs to be wound up, the slide plate is pulled to the right to make the clamping rod disengage from the through hole of the turntable. At this time, the turntable is rotated to make the connecting rod drive the arc-shaped clamping plate to move. At this time, the personnel can place the diaphragm into the limiting groove of the winding roller. At this time, the turntable is released. Under the action of spring 1, the surface of the arc-shaped clamping plate will contact the diaphragm, thereby stabilizing the diaphragm. There is no need for personnel to hold the diaphragm during winding, which can prevent accidents. The slide plate is released to allow the clamping rod to enter the through hole of the turntable. The limit of the turntable can prevent the centrifugal force generated when the winding roller rotates, causing the turntable to deviate.

[0014] 2. When the film winding device for lithium battery diaphragm production is wound up and the diaphragm needs to be taken out, the rocker is turned, and the threaded rod rotates to drive the threaded block to move to the right, so that the movable plate drives the disc and the contact plate 1 to separate from the winding roller, making it convenient for personnel to take out the diaphragm. The contact plate 1, the contact plate 2, and the disc are rotated to contact the surface of the contact plate 1, thereby driving the disc to rotate, so that the winding roller can maintain its stability when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the front view of the expanded structure of the utility model;

[0018] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model;

[0019] Figure 5 For this utility model Figure 4 A is a schematic diagram of the enlarged structure;

[0020] Figure 6 It is a partial side cross-sectional structural schematic diagram of the utility model;

[0021] Figure 7 For this utility model Figure 6 Middle B is a schematic diagram of the enlarged structure;

[0022] Figure 8 It is a schematic diagram of the partial cross-section and top view of the structure of the utility model;

[0023] Fig. 9 For this utility model Figure 8 Middle C is a schematic diagram of the enlarged structure;

[0024] Fig.10 This is a schematic diagram of the connection relationship between the winding roller and the turntable of the utility model;

[0025] Fig.11 This is a front view structural diagram of the connection relationship between the winding roller and the connecting rod of the utility model;

[0026] Fig.12 For this utility model Fig.11 Middle D is a schematic diagram of the enlarged structure.

[0027] In the figure: 1. base; 2. fixed plate; 3. motor; 4. threaded rod; 5. threaded block; 6. movable plate; 7. winding roller; 8. disc; 9. fixed assembly; 90. arc clamp; 91. spring 1; 92. turntable; 93. connecting rod; 94. limiter; 940. slide plate; 941. stabilizing plate; 942. spring 2; 943. clamping rod; 10. resistance plate 1; 11. resistance plate 2; 12. rocker. DETAILED DESCRIPTION

[0028] like Figure 1-12 As shown, the utility model provides a technical solution: a film winding device for lithium battery diaphragm production, comprising a base 1, a fixed plate 2 is fixed on the top of the base 1, a motor 3 is fixed on the left side of the fixed plate 2, the output shaft of the motor 3 passes through the fixed plate 2, a winding roller 7 is rotatably connected to the right side of the fixed plate 2, the left end of the winding roller 7 is fixedly connected to the output shaft of the motor 3, a limiting groove is provided on the surface of the winding roller 7, an annular groove is provided on the surface of the winding roller 7, a through hole is provided in the annular groove of the winding roller 7, a fixing component 9 is provided on the surface of the winding roller 7, and the fixing component 9 comprises: an arc clamping plate 90, a spring 1 91, a rotating disk 92, a connecting rod 93, a limiting member 94, a slide plate 940, a stabilizing plate 941, a spring 2 942, and a clamping rod 943, the arc clamping plate 90 is slidably connected in the limiting groove of the winding roller 7, the arc clamping plate A spring 91 is fixed to the surface of 90, and one end of the spring 91 away from the arc-shaped clamping plate 90 is fixed to the inner wall of the limiting groove of the winding roller 7. The inner wall of the annular groove of the winding roller 7 is rotatably connected with a turntable 92. A connecting rod 93 is fixed to the side of the turntable 92 away from the fixed plate 2. The end of the connecting rod 93 away from the turntable 92 passes through the through hole of the winding roller 7 and is fixed to the surface of the arc-shaped clamping plate 90. A through hole is opened on the surface of the turntable 92. The fixing assembly 9 also includes a limiting member 94. The turntable 92 is rotated so that the connecting rod 93 drives the arc-shaped clamping plate 90 to move. At this time, the personnel can place the diaphragm into the limiting groove of the winding roller 7. At this time, the turntable 92 is released. Under the action of the spring 91, the surface of the arc-shaped clamping plate 90 will contact the diaphragm, thereby stabilizing the diaphragm. There is no need for personnel to hold the diaphragm when winding, which can prevent accidents.

[0029] The limiting member 94 includes a slide plate 940, which is penetrated by the winding roller 7 and is slidably connected to the winding roller 7. The winding roller 7 is penetrated by a stabilizing plate 941, which is fixedly connected to the winding roller 7. A second spring 942 is fixed on the side of the stabilizing plate 941 close to the slide plate 940, and one end of the second spring 942 away from the stabilizing plate 941 is fixed to the surface of the slide plate 940. A clamping rod 943 is fixed on the side of the slide plate 940 away from the second spring 942. One end of the clamping rod 943 away from the slide plate 940 passes through the through hole of the turntable 92. When the lithium battery diaphragm needs to be rolled up, the slide plate 940 is pulled to the right to make the clamping rod 943 disengage from the through hole of the turntable 92. At this time, the turntable 92 is rotated. When the arc-shaped clamping plate 90 contacts the diaphragm, the slide plate 940 is released to make the clamping rod 943 enter the through hole of the turntable 92. The turntable 92 is limited to prevent the centrifugal force generated when the winding roller 7 rotates, causing the turntable 92 to deviate.

[0030] The base 1 is provided with a cavity inside, and the inner wall of the cavity of the base 1 is rotatably connected with a threaded rod 4. The left side of the base 1 is penetrated by an output shaft of a rocking arm 12, and the right end of the output shaft of the rocking arm 12 is fixedly connected to the left end of the threaded rod 4. The threaded rod 4 is penetrated by a threaded block 5, and the threaded block 5 is threadedly connected to the threaded rod 4. The top of the threaded block 5 penetrates the base 1, and the threaded block 5 is slidably connected to the base 1, and a movable plate 6 is fixed on the top of the threaded block 5. When the winding is completed and the diaphragm needs to be taken out, the rocking arm 12 is rotated, and the threaded rod 4 rotates to drive the threaded block 5 to move to the right, so that the movable plate 6 drives the disc 8 and the contact plate 1 10 to separate from the winding roller 7. At this time, it is convenient for personnel to take out the diaphragm. Through the contact plate 10, the contact plate 2 11, and the disc 8, the contact plate 2 11 rotates to contact the surface of the contact plate 10, thereby driving the disc 8 to rotate, so that the winding roller 7 can maintain its stability when the winding roller 7 rotates;

[0031] A groove is provided at the right end of the winding roller 7, and a second contact plate 11 is fixed to the inner wall of the groove of the winding roller 7. The contact plate 10 and the disc 8 can be used to synchronously drive the disc 8 to rotate when the winding roller 7 rotates, so that the winding roller 7 can maintain its stability when rotating.

[0032] The left side of the movable plate 6 is rotatably connected with a disc 8, and the left side of the disc 8 is fixed with a contact plate 10;

[0033] The slide plate 940 and the stabilizing plate 941 are both circular.

[0034] When the lithium battery diaphragm needs to be rolled up, the slide plate 940 is pulled to the right so that the clamping rod 943 is disengaged from the through hole of the turntable 92. At this time, the turntable 92 is rotated so that the connecting rod 93 drives the arc clamping plate 90 to move. At this time, the personnel can place the diaphragm into the limiting groove of the winding roller 7. At this time, the turntable 92 is released. Under the action of the spring 1 91, the surface of the arc clamping plate 90 will contact the diaphragm, thereby stabilizing the diaphragm. The slide plate 940 is released so that the clamping rod 943 enters the through hole of the turntable 92. The turntable 92 is limited to prevent the centrifugal force generated when the winding roller 7 rotates. , causing the turntable 92 to shift. There is no need for personnel to hold the diaphragm during winding, which can prevent accidents. When the winding is completed and the diaphragm needs to be taken out, the rocker 12 is turned, and the threaded rod 4 rotates to drive the threaded block 5 to move to the right, so that the movable plate 6 drives the disc 8 and the contact plate 10 to separate from the winding roller 7. At this time, the personnel can take out the diaphragm, through the contact plate 10 and the contact plate 2 11, and the disc 8. The rotation of the contact plate 2 11 will contact the surface of the contact plate 10, thereby driving the disc 8 to rotate, and the winding roller 7 can maintain its stability when the winding roller 7 rotates.

[0035] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A film collecting device for producing lithium battery separators, comprising a base (1), characterized in that: A fixing plate (2) is fixed on the top of the base (1), a motor (3) is fixed on the left side of the fixing plate (2), an output shaft of the motor (3) passes through the fixing plate (2), a winding roller (7) is rotatably connected to the right side of the fixing plate (2), the left end of the winding roller (7) is fixedly connected to the output shaft of the motor (3), a limiting groove is provided on the surface of the winding roller (7), an annular groove is provided on the surface of the winding roller (7), a through hole is provided in the annular groove of the winding roller (7), and a fixing component (9) is provided on the surface of the winding roller (7), and the fixing component (9) comprises: An arc-shaped clamping plate (90) is slidably connected in the limiting groove of the winding roller (7), a spring (91) is fixed on the surface of the arc-shaped clamping plate (90), one end of the spring (91) away from the arc-shaped clamping plate (90) is fixed on the inner wall of the limiting groove of the winding roller (7), a turntable (92) is rotatably connected to the inner wall of the annular groove of the winding roller (7), a connecting rod (93) is fixed on the side of the turntable (92) away from the fixed plate (2), one end of the connecting rod (93) away from the turntable (92) passes through the through hole of the winding roller (7) and is fixed on the surface of the arc-shaped clamping plate (90), a through hole is opened on the surface of the turntable (92), and the fixing component (9) also includes a limiting member (94).

2. The film collecting device for producing lithium battery separator according to claim 1, characterized in that: The limiting member (94) includes a slide plate (940), the slide plate (940) is penetrated by the winding roller (7), and the slide plate (940) is slidably connected to the winding roller (7), the winding roller (7) is penetrated by a stabilizing plate (941), the stabilizing plate (941) is fixedly connected to the winding roller (7), a spring 2 (942) is fixed on the side of the stabilizing plate (941) close to the slide plate (940), one end of the spring 2 (942) away from the stabilizing plate (941) is fixed to the surface of the slide plate (940), a clamping rod (943) is fixed on the side of the slide plate (940) away from the spring 2 (942), and one end of the clamping rod (943) away from the slide plate (940) passes through the through hole of the turntable (92).

3. The film collecting device for producing lithium battery separator according to claim 1, characterized in that: The base (1) has a cavity formed inside, and the inner wall of the cavity of the base (1) is rotatably connected to a threaded rod (4). The left side of the base (1) is penetrated by an output shaft of a rocker (12), and the right end of the output shaft of the rocker (12) is fixedly connected to the left end of the threaded rod (4). The threaded rod (4) is penetrated by a threaded block (5), and the threaded block (5) is threadedly connected to the threaded rod (4). The top of the threaded block (5) penetrates the base (1), and the threaded block (5) is slidably connected to the base (1), and a movable plate (6) is fixed to the top of the threaded block (5).

4. The film collecting device for producing lithium battery separator according to claim 1, characterized in that: The right end of the winding roller (7) is provided with a groove, and a second abutment plate (11) is fixed to the inner wall of the groove of the winding roller (7).

5. The film collecting device for producing lithium battery separator according to claim 3, characterized in that: The left side of the movable plate (6) is rotatably connected to a disc (8), and the left side of the disc (8) is fixed with a contact plate (10).

6. The film collecting device for producing lithium battery separator according to claim 2, characterized in that: The slide plate (940) and the stabilizing plate (941) are both configured in a circular shape.

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