CN212151003U - Convenient coil stripping device of wet process lithium battery diaphragm slitter edge rolling - Google Patents

Abstract

The utility model discloses a convenient unwinding device of wet process technology lithium cell diaphragm slitter edge rolling, including rolling semicircle tube, cylindric lock and supplementary elasticity bolt. The winding semi-cylinder is connected with an external motor device to drive the device to rotate; the cylindrical pin connects the rolling semi-cylinders to realize displacement movement of the rolling semi-cylinders in the direction vertical to the diameter direction of the rolling semi-cylinders; the auxiliary elastic bolt is connected with one of the rolling semi-cylinders, so that the auxiliary elastic bolt can conveniently loosen and fix the other rolling semi-cylinder, convenient coil unloading is realized, and the efficiency is improved. The utility model discloses a half-cylinder structure realizes swiftly conveniently unloading the book, and supplementary elasticity bolt adjusts the displacement amount of movement of rolling half-cylinder on perpendicular its diameter direction, and overall structure is simple, unloads a roll efficiently, and the repacking is convenient, and the suitability is strong.

Description

Convenient coil stripping device of wet process lithium battery diaphragm slitter edge rolling

Technical Field

The utility model belongs to the technical field of the new forms of energy material and specifically relates to a convenient device of unloading of winding of wet process technology production lithium ion battery diaphragm slitter edge for after collecting the slitter edge in the production of wet process technology lithium ion battery diaphragm, convenient and fast makes the spool separate with the slitter edge book of collection.

Technical Field

The high-performance lithium battery diaphragm produced by the wet process is mainly used for power batteries, 3C product batteries and energy storage batteries. Compared with the existing dry-process lithium battery diaphragm, the wet-process lithium battery diaphragm has the core that the raw materials and the white oil are uniformly mixed and then are extruded, stretched and extracted, the mixing and extruding process requires uniform mixing, good plasticizing performance and strong cast sheet thickness consistency, the stretching process requires molecular chain orientation and uniform pore-making agent distribution, and the extraction process requires the white oil in the oil film to be fully extracted. The method has the advantages of thinner diaphragm thickness, smaller diaphragm aperture, uniform distribution, good tensile strength uniformity and air permeability, transverse stretching, puncture strength, safety, high porosity and the like, and the wet process membrane making has obvious advantages compared with the dry process membrane making. The performance of the diaphragm has direct influence on the capacity, the cycle capacity and the safety of the battery, and the diaphragm with excellent performance can improve the capacity, the charge-discharge capacity, the cycle capacity and the safety of the battery, so that the diaphragm with excellent performance has an important effect on improving the comprehensive performance of the battery. The advantage of the wet process membrane is much higher than the dry process membrane in terms of product force.

The winding and unwinding device for the waste edges of the lithium battery diaphragm by the wet process widely used at present is a metal cylinder type, a nonmetal cylinder type or a pneumatic clamping head type. Metal, the hollow cylinder type is adopted to nonmetal cylinder barrel, cylinder barrel both sides are blocked by the coiling mechanism during the rolling and rotate along with the motor and carry out the rolling, cylinder barrel and the slitter edge of being collected are lifted off simultaneously after the rolling is accomplished, the slitter edge winding of collecting is on cylinder barrel, can't directly take out cylinder barrel, need to cut off the slitter edge of winding on cylinder barrel, waste time and energy, because the slitter edge of collecting is incomplete to be left more dichloromethane liquid, it is extremely volatile in room temperature environment, operating personnel takes out cylinder barrel time contact dichloromethane long in the processing, there is adverse effect to the health. Pneumatic chuck formula one side adopts pneumatic means, and pneumatic dop is opened and is carried out the rolling during rolling, closes pneumatic dop after the rolling is accomplished, and the slitter edge of collecting can directly be lifted off in the diminishing of one side rolling axle diameter of pneumatic dop, nevertheless because rolling tension can not set up too big, rolls up the cycle under the rolling and short, increases operating personnel work load. The two rolling coil stripping modes can not meet the requirements of the existing production equipment, so that a simple and practical coil stripping device is urgently needed to realize convenient and efficient coil stripping work, and has important practical production significance.

Disclosure of Invention

The utility model discloses to the defect of current device of unloading, solve current device of unloading and waste time, hard and the rolling problem that the rolling period is short down when unloading the book, utility model discloses a convenient device of unloading of wet process technology lithium cell diaphragm slitter edge rolling has the advantage such as convenient, high-efficient, the practicality is strong, simple structure of unloading the book.

The utility model adopts the following technical scheme:

the utility model provides a convenient unwinding device of wet process technology lithium cell diaphragm slitter edge rolling, includes rolling semi-circular cylinder A, rolling semi-circular cylinder B, cylindric lock and supplementary lag bolt, rolling semi-circular cylinder A both ends all be equipped with the cylindric lock, the cylindric lock both sides all be equipped with supplementary lag bolt, rolling semi-circular cylinder A is connected with rolling semi-circular cylinder B through the cylindric lock.

The matching mode of the cylindrical pin and the upper holes at two ends of the planes of the rolling semi-cylinder A and the rolling semi-cylinder B is clearance fit.

The auxiliary elastic bolt is arranged in a screw hole of the rolling semi-cylinder A and adopts fine threads.

The vertical distance between the planes of the rolling semi-cylinder A and the rolling semi-cylinder B is adjusted within the range of 0-2 cm.

The rolling semi-cylinder A and the rolling semi-cylinder B are made of cast steel.

The winding semi-cylinder A and the winding semi-cylinder B are hollow semi-circular pipes, and notches with the radius of 1-2cm in semi-circular shape are reserved on two sides of each semi-circular pipe, so that the winding and unwinding device can be conveniently matched and fixed with a winding motor device.

The utility model has the advantages that:

1. the utility model discloses a rolling semicircle tube is connected to the cylindric lock, during the rolling, and the supplementary elasticity bolt tightly fixes the rolling semicircle tube in the frictional force top that threaded connection produced, when unloading the book, unloads supplementary elasticity bolt through the pine, changes the diameter of unloading the book device to reach the effect of unloading a book swift convenience, labour saving and time saving.

2. The utility model discloses simple structure, any motor rotating device is connected to rolling semicircle tube both sides accessible fixed orifices, and under the prerequisite that does not change current wet process technology lithium battery diaphragm slitter edge rolling and unloads package device primary structure, only change the spool structure and unload the book, it is convenient, swift, labour saving and time saving to unload the book.

Drawings

FIG. 1 is a drawing showing a structure of a winding semi-cylinder 1

FIG. 2 is a drawing showing a structure of the winding semi-cylinder 2

FIG. 3 is an overall structure diagram of the rolling semi-cylinder 1 and the rolling semi-cylinder 2 connected by the cylindrical pin 3

FIG. 4 is a structural diagram of a convenient coil stripping device for winding waste edges of lithium battery diaphragm by a wet process

In the figure: the winding device comprises a winding semi-cylinder A1, a winding semi-cylinder B2, a cylindrical pin 3 and an auxiliary elastic bolt 4.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. A convenient coil stripping device of wet process lithium cell diaphragm slitter edge rolling, as shown in figure 1, 2, 3, 4. A convenient coil stripping device for winding waste edges of lithium battery diaphragms by wet process technology comprises a winding semi-cylinder A1, a winding semi-cylinder B2, a cylindrical pin 3 and an auxiliary elastic bolt 4. The rolling semi-circular cylinder A1 and the rolling semi-circular cylinder B2 are connected and fixed and then are connected with an external motor device to drive the cylinders to rotate; the cylindrical pin 3 connects the rolling semi-cylinder A1 with the rolling semi-cylinder B2 to realize displacement movement of the rolling semi-cylinder in the direction vertical to the diameter direction of the rolling semi-cylinder; supplementary lag bolt 4 be connected with rolling semicircle tube A1, be convenient for supplementary lag bolt 4 to rolling semicircle tube B2 loosen and unload and fix, realize convenient coil of unloading, raise the efficiency.

The rolling semi-cylinder A1 and the rolling semi-cylinder B2 are integrally hollow semi-circular pipes, matching holes fixed with a motor device are formed in two ends of each of the semi-circular pipes, holes needed for connecting the rolling semi-cylinder B2 and bolts are formed in one side of the plane of the rolling semi-cylinder A1, and holes needed for connecting the rolling semi-cylinder A1 are formed in one side of the plane of the rolling semi-cylinder B2; the cylindrical pin 3 is cylindrical with a certain length, and the matching mode of the cylindrical pin and the hole is clearance fit, so that on one hand, the rolling semi-cylinder can be ensured to have a displacement meeting the requirement in the direction vertical to the diameter direction of the rolling semi-cylinder, and on the other hand, convenient coil unloading is convenient to realize; supplementary elasticity bolt 4 dress in 1 screwed hole of rolling semicircle tube, adopt thin tooth screw thread, the not hard up phenomenon of fastening bolt appears when avoiding rolling tension too big or the unusual fluctuation of load, supplementary elasticity bolt 4 lower surface during the rolling closely laminates with the plane of rolling semicircle tube B2, unloads with the pine through supplementary elasticity bolt 4 is fixed to rolling semicircle tube B2 to realize stable rolling and convenient the book of unloading.

The utility model relates to a convenient working process of unwinding unit of wet process technology lithium battery diaphragm slitter edge rolling, including following step:

1) before rolling, the auxiliary elastic bolt 4 tightly pushes and fixes the rolling semi-cylinder B2 through the friction force generated by threaded connection;

2) when in rolling, the fixing holes at two sides of the rolling semi-cylinder A1 and the rolling semi-cylinder B2 are matched and fixed with the motor device, and the coil stripping device rotates along with the rolling motor device;

3) when unloading the book, the coiling mechanism unloads the coil stripping device after the rolling is accomplished, unloads supplementary elasticity bolt 4 through the pine, makes it cylindric lock 3 enable the vertical distance between rolling semicircle tube A1 and the rolling semicircle tube B2 plane to reduce, the diameter of the coil stripping device diminishes, can directly unload the whole book waste film limit after the rolling is accomplished, reaches the effect of unloading the swift convenience of book, labour saving and time saving.

The above description is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of using the present invention in the technical scope disclosed in the present invention, and all the technical solutions and the concepts of using the present invention should be covered in the protection scope of the present invention.

Claims (6)

1. The utility model provides a convenient coil stripping device of wet process technology lithium cell diaphragm slitter edge rolling, its characterized in that includes rolling semicircle tube A (1), rolling semicircle tube B (2), cylindric lock (3) and supplementary elasticity bolt (4), rolling semicircle tube A (1) both ends all be equipped with cylindric lock (3), cylindric lock (3) both sides all be equipped with supplementary elasticity bolt (4), rolling semicircle tube A (1) are connected with rolling semicircle tube B (2) through cylindric lock (3).

2. The convenient unwinding device for winding waste edges of lithium battery separator films by wet process as claimed in claim 1, characterized in that the matching mode of the cylindrical pin (3) and the holes at the two ends of the planes of the winding semi-cylinder A (1) and the winding semi-cylinder B (2) is clearance fit.

3. The convenient unwinding device for winding waste edges of lithium battery separator films by wet process according to claim 1, characterized in that the auxiliary elastic bolts (4) are arranged in screw holes of the winding semi-cylinder A (1) and adopt fine threads.

4. The convenient unwinding device for winding waste edges of wet process lithium battery separators as claimed in claim 1, wherein the vertical distance between the planes of the winding semicircular cylinder A (1) and the winding semicircular cylinder B (2) is adjusted within the range of 0-2 cm.

5. The convenient unwinding device for winding waste edges of wet process lithium battery separators as claimed in claim 1, wherein the winding half cylinder A (1) and the winding half cylinder B (2) are made of cast steel.

6. The convenient unwinding device for winding waste edges of lithium battery separator by wet process as claimed in claim 1, wherein the winding semi-cylinder a (1) and the winding semi-cylinder B (2) are hollow semi-circular tubes, and both sides are provided with semi-circular gaps with a radius of 1-2cm, so as to be convenient for fixing the unwinding device in cooperation with a winding motor device.

Images