CN218261089U

CN218261089U - Lithium battery diaphragm rolling machine

Info

Publication number: CN218261089U
Application number: CN202222375192.7U
Authority: CN
Inventors: 梅俊祥; 吴亚维; 张绍成
Original assignee: Jin Ensi Is Intelligently Equipped Tianjin co Ltd
Current assignee: Jin Ensi Is Intelligently Equipped Tianjin co Ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-01-10
Anticipated expiration: 2032-09-07

Abstract

The utility model relates to the technical field of lithium battery diaphragm production, in particular to a lithium battery diaphragm winding machine, which comprises a winding frame, wherein a diaphragm cooling mechanism and a diaphragm cutting mechanism are arranged inside the winding frame, and a winding roller is also arranged inside the winding frame; diaphragm cooling body includes fixed connection at the inside cooling box and the air-blower of rolling frame, and the cooling box is rectangular frame form hollow structure, and the interior top surface and the interior bottom surface of cooling box evenly run through and have seted up the gas pocket, and the inside of cooling box is equipped with the wire, and the outside of cooling box is equipped with the semiconductor refrigeration piece, and the one end of wire stretches out to the outside of cooling box and is connected with the refrigeration face of semiconductor refrigeration piece, and the gas vent of air-blower is linked together with the inside of cooling box. The utility model discloses in have diaphragm cooling body, be favorable to the even heat dissipation of diaphragm and improve the radiating efficiency to reduce the probability that the fold appears in the diaphragm, help promoting diaphragm production quality.

Description

Lithium battery diaphragm rolling machine

Technical Field

The utility model relates to a lithium battery diaphragm production technical field specifically is a lithium battery diaphragm rolling machine.

Background

In the structure of the lithium battery, the diaphragm is one of the key inner layer components, and the performance of the diaphragm determines the interface structure, internal resistance and the like of the battery, and directly influences the capacity, circulation, safety performance and other characteristics of the battery, so that the diaphragm with excellent performance has an important effect on improving the comprehensive performance of the battery. At present, a winding machine is needed to be used for winding the diaphragm in the production process of the lithium battery diaphragm. However, because after the diaphragm was produced, diaphragm surface temperature was higher, if directly utilize the rolling machine to carry out the rolling, then be unfavorable for even heat dissipation because of the diaphragm after the rolling, lead to the diaphragm fold phenomenon to appear on the rolling machine easily, and then influence the quality of lithium battery diaphragm, also influence the pleasing to the eye degree of lithium battery diaphragm. Therefore, the lithium battery diaphragm winding machine is provided to well solve the defects.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium battery diaphragm rolling machine for solve the problem that proposes among the above-mentioned background art.

The utility model discloses a can realize through following technical scheme: a lithium battery diaphragm winding machine comprises a winding frame, wherein a diaphragm cooling mechanism and a diaphragm cutting mechanism are arranged inside the winding frame, and a winding roller is further arranged inside the winding frame; diaphragm cooling body includes fixed connection and is in the inside cooling box and the air-blower of rolling frame, the cooling box is rectangular frame form hollow structure, the interior top surface and the interior bottom surface of cooling box evenly run through and have seted up the gas pocket, the inside of cooling box is equipped with the wire, the outside of cooling box is equipped with the semiconductor refrigeration piece, the one end of wire stretch out to the outside of cooling box and with the refrigeration face of semiconductor refrigeration piece is connected, the gas vent of air-blower with the inside of cooling box is linked together.

Preferably, the heating surface of the semiconductor refrigerating sheet is connected with a radiator through heat-conducting silicone grease, and the radiator is fixedly connected with the outer side wall of the cooling box body through a support.

Preferably, the exhaust port of the blower is connected with an exhaust pipe, and one end of the exhaust pipe, which is far away from the blower, penetrates through the side wall of the cooling box body and extends into the cooling box body.

Preferably, diaphragm truncation mechanism includes fixed connection and is in the bearing part, the activity setting of bottom surface are in the rolling frame displacement piece and fixed connection that just can follow vertical direction lift directly over the bearing part are in the blade of displacement piece bottom surface, the top surface of bearing part is circular-arcly, just the truncation mouth has been seted up to the top surface of bearing part, the inside solid embedding of truncation mouth has the truncation platform.

Preferably, diaphragm truncation mechanism is still including being located the mounting panel directly over the displacement piece, around the mounting panel both ends respectively with both sides wall fixed connection around the inside of rolling frame, the bottom surface of mounting panel is equipped with the guide post perpendicularly, the guide post runs through the displacement piece and rather than sliding fit, the top surface of displacement piece is equipped with perpendicularly presses the axle, the top activity of pressing the axle runs through the mounting panel, just the outside cover of pressing the axle is equipped with reset spring, reset spring's both ends respectively with press the top of axle and the last fixed surface of mounting panel connects.

Preferably, smoothing shafts are symmetrically arranged in the winding frame and located on the left side and the right side of the bearing portion, two ends of each smoothing shaft are rotatably connected with the front side wall and the rear side wall of the winding frame, and the bottom surfaces of the smoothing shafts are lower than the top surface of the bearing portion.

Compared with the prior art, the utility model provides a lithium battery diaphragm rolling machine possesses following beneficial effect:

1. the diaphragm cooling mechanism is arranged in the utility model, which is beneficial to the uniform heat dissipation of the diaphragm and the improvement of the heat dissipation efficiency, thereby reducing the probability of the diaphragm with folds and being beneficial to the improvement of the production quality of the diaphragm;

2. the utility model discloses in have diaphragm cut-off mechanism, after the certain length of diaphragm rolling, usable diaphragm cut-off mechanism cuts the diaphragm easily, need not artifical manual the tailorring, not only help improving diaphragm production efficiency, also avoided cutting out the phenomenon that leads to the unevenness of diaphragm tip because of the manual work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged corresponding view taken at A in FIG. 1;

FIG. 3 is a schematic view of the diaphragm cooling mechanism of the present invention;

fig. 4 is a schematic view of the cooling box of the present invention.

In the figure: 10. a winding frame; 101. smoothing the shaft; 20. a diaphragm cooling mechanism; 201. cooling the box body; 202. a blower; 203. a metal wire; 204. a semiconductor refrigeration sheet; 205. a heat sink; 206. an exhaust pipe; 207. air holes; 30. a diaphragm cutoff mechanism; 301. a bearing part; 302. a displacement block; 303. a blade; 304. a fracture port; 305. a cutting table; 306. mounting a plate; 307. a guide post; 308. pressing the shaft; 309. a return spring; 40. and (7) winding the shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1-4, a lithium battery diaphragm winding machine includes a winding frame 10, a diaphragm cooling mechanism 20 and a diaphragm cutting mechanism 30 are disposed inside the winding frame 10, a winding roller 40 is disposed inside the winding frame 10, and a driving mechanism (not shown) for driving the winding roller 40 to rotate is disposed outside the winding frame 10; the diaphragm cooling mechanism 20 comprises a cooling box body 201 and an air blower 202 which are fixedly connected inside the winding frame 10, the cooling box body 201 is of a rectangular frame-shaped hollow structure, as shown in fig. 4, air holes 207 are uniformly formed in the inner top surface and the inner bottom surface of the cooling box body 201 in a penetrating mode, a metal wire 203 is arranged inside the cooling box body 201, a semiconductor refrigerating sheet 204 is arranged outside the cooling box body 201, one end of the metal wire 203 extends out of the cooling box body 201 and is connected with a refrigerating surface of the semiconductor refrigerating sheet 204, specifically, the metal wire 203 is connected with the refrigerating surface of the semiconductor refrigerating sheet 204 through heat-conducting silicone grease, and the metal wire 203 is in a bent spiral shape; in addition, the heating surface of the semiconductor cooling plate 204 is connected with a radiator 205 through heat-conducting silicone grease, the radiator 205 is fixedly connected with the outer side wall of the cooling box 201 through a bracket, the exhaust port of the blower 202 is communicated with the inside of the cooling box 201, specifically, the exhaust port of the blower 202 is connected with an exhaust pipe 206, one end of the exhaust pipe 206, which is far away from the blower 202, penetrates through the side wall of the cooling box 201 and extends into the cooling box 201, that is, the blower 202 can blow external air into the cooling box 201.

The diaphragm cutting mechanism 30 comprises a bearing part 301 fixedly connected to the inner bottom surface of the winding frame 10, a displacement block 302 movably arranged right above the bearing part 301 and capable of lifting along the vertical direction, and a blade 303 fixedly connected to the bottom surface of the displacement block 302, wherein the top surface of the bearing part 301 is arc-shaped, a cutting opening 304 is formed in the top surface of the bearing part 301, a cutting table 305 is fixedly embedded in the cutting opening 304, and the cutting table 305 is made of quartz; the diaphragm cutting mechanism 30 further comprises a mounting plate 306 located right above the displacement block 302, the front end and the rear end of the mounting plate 306 are fixedly connected with the front side wall and the rear side wall of the interior of the winding frame 10 respectively, a guide column 307 is vertically arranged on the bottom surface of the mounting plate 306, the guide column 307 penetrates through the displacement block 302 and is in sliding fit with the displacement block 302, namely, the displacement block 302 can slide along the length direction of the guide column 307, a pressing shaft 308 is vertically arranged on the top surface of the displacement block 302, the top end of the pressing shaft 308 movably penetrates through the mounting plate 306, a reset spring 309 is sleeved outside the pressing shaft 308, and two ends of the reset spring 309 are fixedly connected with the top end of the pressing shaft 308 and the upper surface of the mounting plate 306 respectively.

The flattening shafts 101 are symmetrically arranged inside the winding frame 10 and on the left side and the right side of the bearing portion 301, as shown in fig. 1, two ends of each flattening shaft 101 are rotatably connected with the front side wall and the rear side wall inside the winding frame 10 respectively, the bottom surfaces of the flattening shafts 101 are lower than the top surface of the bearing portion 301, the flattening shafts 101 are used for pressing the diaphragm on the bearing portion 301, and the diaphragm can be cut off neatly by the blades 303.

In the use process of the embodiment, the free end of the diaphragm firstly passes through the cooling box 201 and bypasses the top surface of the bearing part 301, and finally the diaphragm is connected with the take-up shaft 40, as shown in fig. 1; then, the air blower 202, the semiconductor chilling plates 204 and a driving mechanism for driving the winding shaft 40 to rotate are started, the winding shaft 40 can draw the diaphragm and wind the diaphragm, the air blower 202 can introduce air into the cooling box 201, and the semiconductor chilling plates 204 can reduce the temperature of the air in the cooling box 201; the diaphragm passes through the cooling box 201, and the cooling box 201 can discharge cold air through the air hole 207, so that the diaphragm cooling mechanism 20 can effectively cool the diaphragm; after the diaphragm on the winding shaft 40 is wound for a certain length, a worker can push the pressing shaft 308 downwards, and cut the diaphragm by using the blade 303, so that the phenomenon of unevenness in manual cutting is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium battery diaphragm rolling machine, includes rolling frame (10), its characterized in that: a diaphragm cooling mechanism (20) and a diaphragm cutting mechanism (30) are arranged inside the winding frame (10), and a winding roller (40) is further arranged inside the winding frame (10); diaphragm cooling body (20) are including fixed connection in the inside cooling box (201) and air-blower (202) of rolling frame (10), cooling box (201) are rectangular frame form hollow structure, the interior top surface and the interior bottom surface of cooling box (201) evenly run through and have seted up gas pocket (207), the inside of cooling box (201) is equipped with wire (203), the outside of cooling box (201) is equipped with semiconductor refrigeration piece (204), the one end of wire (203) stretch out to the outside of cooling box (201) and with the refrigeration face of semiconductor refrigeration piece (204) is connected, the gas vent of air-blower (202) with the inside of cooling box (201) is linked together.

2. The lithium battery diaphragm winding machine of claim 1, characterized in that: the heating surface of the semiconductor refrigerating sheet (204) is connected with a radiator (205) through heat-conducting silicone grease, and the radiator (205) is fixedly connected with the outer side wall of the cooling box body (201) through a support.

3. The lithium battery diaphragm winding machine of claim 1, characterized in that: an exhaust pipe (206) is connected to an exhaust port of the blower (202), and one end, far away from the blower (202), of the exhaust pipe (206) penetrates through the side wall of the cooling box body (201) and extends into the cooling box body (201).

4. The lithium battery diaphragm winding machine of claim 1, characterized in that: diaphragm truncation mechanism (30) are including fixed connection in the load-bearing part (301), the activity of bottom is set up in rolling frame (10) displacement piece (302) and fixed connection that just can follow vertical direction lift directly over load-bearing part (301) are in blade (303) of displacement piece (302) bottom surface, the top surface of load-bearing part (301) is circular-arcly, just truncation mouth (304) have been seted up to the top surface of load-bearing part (301), the inside of truncation mouth (304) has firmly inlayed and has been truncated platform (305).

5. The lithium battery diaphragm winding machine of claim 4, characterized in that: diaphragm truncation mechanism (30) still including being located mounting panel (306) directly over displacement piece (302), the front and back both ends of mounting panel (306) respectively with both sides wall fixed connection around the inside of rolling frame (10), the bottom surface of mounting panel (306) is equipped with guide post (307) perpendicularly, guide post (307) run through displacement piece (302) and rather than sliding fit, the top surface of displacement piece (302) is equipped with perpendicularly presses axle (308), the top activity of pressing axle (308) runs through mounting panel (306), just the outside cover of pressing axle (308) is equipped with reset spring (309), reset spring (309) both ends respectively with press the top of axle (308) and the last fixed surface of mounting panel (306) is connected.

6. The lithium battery diaphragm winding machine of claim 4, characterized in that: the winding device is characterized in that smoothing shafts (101) are symmetrically arranged on the left side and the right side of the bearing portion (301) in the winding frame (10), two ends of each smoothing shaft (101) are rotatably connected with the front side wall and the rear side wall of the winding frame (10) in the inner portion respectively, and the bottom surfaces of the smoothing shafts (101) are lower than the top surface of the bearing portion (301).