CN202905828U - Laboratory-use minitype Lithium-ion battery diaphragm sheet-punching machine - Google Patents

Abstract

The utility model relates to a small lithium-ion battery diaphragm punching machine for laboratories. The structure includes: a base on which a pressure mechanism and a punching mechanism are installed; the pressure mechanism includes a hand rocker, a transmission shaft, a pressure column, a contraction spring, an L-shaped fixed rod, and a ring; the punching mechanism includes a connecting baffle, a spring, Sliding cylinder, ring cutter, cutter baffle, film processing table, storage box. The pressure mechanism and the base are tightly connected by a vertical cylinder, the punching mechanism is fastened on the base by nuts, and the pressure mechanism and the punching mechanism are fastened by nuts through the concave part of the pressure column and the protruding part of the top of the ring cutter. In the research of lithium-ion batteries in the laboratory, this machine is used for diaphragm punching, which is easy to use and high in efficiency.

Description

A small lithium-ion battery separator film processor for laboratory use

【Technical field】

The invention relates to a battery diaphragm processing technology, in particular to a small-sized punching machine for a lithium-ion battery diaphragm for laboratory use. the

【Background technique】

With the promotion of green energy and the popularity of small digital devices, lithium-ion batteries have been widely used. Lithium-ion batteries have the advantages of low self-discharge efficiency, no memory effect, and environmental protection. In the experimental research of lithium-ion batteries, the separator is a necessary material for the assembly of lithium-ion batteries. Although the production rate of mass-produced film processors is high, the demand for laboratory use is not large, which will cause unnecessary waste in laboratory use. The usual manual cutting of the diaphragm is irregular, and it is easy to cause contamination of the diaphragm. and damage. Aiming at the use characteristics of the laboratory, the utility model provides a lithium-ion battery diaphragm punching machine with simple operation, high use efficiency and high material utilization rate. the

【Content of invention】

The purpose of this utility model is to solve the problem that in the current scientific research experiment, the film processor used for production cannot be applied to the laboratory, and the manual cutting is not only inefficient, but also the shape and specification are not uniform, and it is easy to cause pollution and damage to the diaphragm. Design a small lithium-ion battery diaphragm punching machine that meets the demand for experimental use, has a simple structure, is easy to operate, is safe and reliable. the

The technical scheme that the utility model adopts is:

The utility model relates to a small-sized lithium-ion battery diaphragm punching machine used for scientific research experiments, which has a base, a pressure mechanism, and a punching mechanism. It is characterized in that the pressure mechanism is fastened above the base through a vertical cylinder, the punching mechanism is fixed on the base through nuts, and the pressure mechanism and the punching mechanism pass through the concave part of the pressure column and the convex top of the ring cutter. Fasten the part with screws. the

A prominent feature of the small diaphragm punching machine is that the pressure mechanism includes a hand rocker, a transmission shaft, a pressure column, a contraction spring, and an L-shaped fixed rod. the

Further, the hand rocker in the pressure mechanism passes through the transmission shaft from the inside and is tightly connected with the transmission shaft; the outside of the transmission shaft is cylindrical, and the inside is a gear structure; the inner side of the pressure column is a threaded surface, which is connected with the gear inside the transmission shaft Partial engagement, the top of the pressure column is tightly connected with a baffle through a nut, and the baffle can move up and down along the L-shaped fixed rod; the L-shaped fixed rod is fixed on the pressure mechanism and passes through the baffle, and there is a fixed ring in the middle. The upper limit height of the baffle is limited; one end of the contraction spring is tightly connected with the baffle, and the other end is tightly connected with the top of the L-shaped fixed rod, and the spring is always in a stretched state. the

Furthermore, the length of the hand rocker in the press mechanism is long enough, and the longer the moment arm, the smaller the required force. the

Still further, the above-mentioned hand rocker is turned counterclockwise to rotate the transmission shaft and drive the pressure column to move down through the screw thread. The downward movement of the pressure column makes the spring stretch, and the force increases. After the hand rocker is released, the tension of the spring causes the pressure column to reset. the

Another prominent feature of the small-sized diaphragm punching machine is that the punching mechanism is composed of a moving mechanism and a fixing mechanism. the

The fixing mechanism includes a fixing baffle, a storage box, and a film processing station. the

Further, the fixed baffle is tightly connected to the base through nuts, and the center of the fixed baffle is hollow. The storage box is in the shape of a cuboid and is located in the hollow of the fixed baffle, which is used to receive the diaphragm and can be drawn out separately; the punching table is tightly connected with the fixed baffle through nuts, and the middle is cylindrical and hollow, leading to the fixed baffle. Hollow part of the board. the

The moving mechanism includes a connecting baffle, an annular cutter, a cutter baffle and a spring. the

Further, the connecting baffle is connected to the fixed baffle through two sliding cylinders, and can slide up and down along the sliding cylinders; the annular cutter is columnar, with the smallest top, which can fit into the groove at the bottom of the drive shaft, and pass through The nut is tightly connected with the transmission shaft, the middle part is the largest, which limits the minimum contraction limit of the spring, and the bottom part is the cutter part, which is slightly smaller than the round hole of the punching table; the middle part of the cutter baffle is hollow, and the ring cutter can just pass through Cutter baffle, the cutter baffle is connected with connection baffle by four springs. the

Furthermore, the cutter part can be disassembled. The size and shape of the cutter can vary according to the size of the button cell. the

The outstanding features and significant progress of the utility model are that it can ensure the convenience and standardization of lithium battery diaphragm cutting and punching; the modular design is convenient for disassembly and assembly; the operation is simple and the work intensity is reduced. It is especially suitable for cutting and punching diaphragms for various types of button-type lithium-ion batteries used in laboratory research. the

【Description of drawings】

The purpose, advantages and characteristics of the present invention will be illustrated and explained through the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solutions of the present invention. The technical solutions will fall within the scope of protection of the present invention. Among these drawings,

FIG. 1 is a schematic diagram of the overall structure of a small-sized lithium-ion battery diaphragm punching machine for experiments of the present invention. the

Fig. 2 is a structural schematic diagram of the pressure mechanism of the small-sized lithium-ion battery diaphragm punching machine used in the experiment of the present invention. the

Fig. 3 is a structural schematic diagram of the punching mechanism of the experimental small-sized lithium-ion battery separator punching machine of the present invention. the

Fig. 4 is a front view of the punching mechanism of the experimental small-sized lithium-ion battery diaphragm punching machine of the present invention. the

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. the

【Detailed ways】

The experimental small-sized lithium-ion battery diaphragm punching machine (hereinafter referred to as the punching machine, referring to FIG. 1 ) designed by the present invention has a base 1, a pressure mechanism 2, and a punching mechanism 3. The pressure mechanism 2 is fixed on the base 1 through a cylinder 4 . the

In this embodiment, a drive shaft 26 is installed on the side of the pressure mechanism 2 (see FIG. 2 ), and the outside of the drive shaft 26 is cylindrical, and is tightly connected with the hand rocker 27; the inside of the drive shaft 26 is a gear structure, Engage with the inner side of the pressure column 21, the inner side of the pressure column 21 is a threaded surface, the rotation of the transmission shaft 26 can drive the pressure column 21 to move up and down; the bottom center 28 of the pressure column 21 has a groove; the top of the pressure column 21 is equipped with a stop plate 22, the baffle 22 is fastened with the pressure column 21 through nuts; an L-shaped fixed rod 24 is installed on the top of the pressure mechanism 2, and the L-shaped fixed rod 24 passes through the baffle 22, so that the baffle 22 can be moved along the L Type fixed rod moves up and down; L-shaped fixed rod top is connected with contraction spring 23, and the other end of described contraction spring 23 is connected with baffle plate 22, and contraction spring 22 is installed vertically, and is in stretched state. During work, the pressure column 21 and the baffle plate 22 move downward as a whole, and the force of the contraction spring 23 increases at the same time. In order to fix the pressure column 21 and the baffle plate 22 in place and prevent excessive upward movement, a circular ring 25 is installed on the L-shaped fixed rod 24, and the circular ring 25 will limit the highest position of the pressure column 21 and the baffle plate 22. the

The fixed baffle 32 of described punching mechanism 3 (referring to Fig. 3, Fig. 4) is fixed on the base 1 by nut, and described fixed baffle 32 middle parts are hollow, and cuboid storage box 31 is installed in hollow position, and storage box 31 can Pull out from the device to receive the diaphragm after punching; the punching table 40 is installed on the fixed baffle 32, and the punching table 40 is fastened to the fixed baffle 32 by a nut, and there is a cylindrical shape in the middle of the punching table 40. The hollow position 41 leads to the storage box 31; the fixed baffle 32 is equipped with two sliding cylinders 37; the sliding cylinder 37 is equipped with a connecting baffle 36, and the connecting baffle 36 can move up and down along the sliding cylinder 37 The connecting baffle 36 is connected with the cutter baffle 39 by four springs 38, and the middle part of the cutter baffle 39 is hollow, so that the annular cutter 33 can pass through the cutter baffle 39 without hindrance, and the bottom of the annular cutter 33 It is flush with the bottom of the cutter baffle, and the annular cutter 33 is directly above the hollow position 41. The annular cutter 33 is slightly smaller than the hollow position 41 on the punching table 40, and can just enter the hollow position; the middle part 34 of the cutter 33 Larger, controlling the highest height of the cutter baffle 39 rise; the top 35 of the cutter 33 is smaller, the size is equivalent to the groove 28 at the bottom of the pressure column 21, can be inserted in the groove 28, and fastened by a nut, The pressure mechanism 2 is connected with the sheet punching mechanism 3 . the

The working principle and working process of the diaphragm punching machine of the present invention are as follows: when in use, the diaphragm is first placed on the hollow position 41 of the punching table 40, and the wrench rocker 27 is turned counterclockwise, and the drive shaft 26 will rotate counterclockwise. The gear structure inside the transmission shaft 26 drives the pressure column 21 and the baffle plate 22 to move downward, the spring 23 is elongated, and the force is increased; the downward movement of the pressure column 21 makes the connection baffle plate 36, the cutter 33 and the cutter baffle plate 39 as a whole Move down along the sliding cylinder 37; the cutter baffle 39 will no longer move after touching the punching table 40, but the pressure column 21, the connecting baffle 36 and the cutter 33 continue to move down, the spring 38 is compressed, and the cutter 33 moves down into the hollow position 41 of the punching table 40 after touching the diaphragm, and cuts out a diaphragm with the same size as the cutter 33, and the diaphragm falls into the storage box 31, and the middle part 34 of the cutter 33 touches the cutter baffle After 39, the cutter 33 will no longer be able to move down. After the punching is completed, let go of your hand. The restoring force of the spring 23 makes the pressure column 21, the baffle 22, the connecting baffle 36 and the cutter 33 move up and restore the original position. After the baffle 22 touches the ring 25, it cannot move up again. Simultaneously spring 38 also recovers original length, and cutter baffle plate 39 pages recover original position. the

Claims (8)

1. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine, it is characterized in that structure is the combination by base, pressure mechanism, punching mechanism, pressure mechanism is fastened on described base top by a vertical cylinder, punching mechanism is fixed on the base by nut, and pressure mechanism and punching mechanism carry out fastened by screw by pressure column female parts and annular cutting knife top projection.

2. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine according to claim 1 is characterized in that pressure mechanism comprises joystick, power transmission shaft, pressure column, contraction spring, L-type fixed lever.

3. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine according to claim 1 is characterized in that the joystick in the pressure mechanism passes power transmission shaft internally, is fastenedly connected with power transmission shaft; The power transmission shaft outside is column type, and inside is gear structure; The pressure column inboard is flank, and with the gear parts interlock of power transmission shaft inside, the pressure column top is fastenedly connected by nut and a baffle plate, and baffle plate can move up and down along the L-type fixed lever; The L-type fixed lever is fixed on the pressure mechanism, and passes baffle plate, and there is a clamping rings centre, limits the upper limit height of baffle plate; Contraction spring one end and baffle plate are fastenedly connected, and the other end and L-type fixed lever top are fastenedly connected, and spring is in extended state all the time.

4. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine according to claim 2, it is characterized in that joystick counterclockwise pulls, power transmission shaft is rotated, and moving down by thread belt dynamic pressure post, pressure column moves down and makes the spring elongation, stressed increase, unclamp joystick after, spring tension resets pressure column.

5. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine according to claim 1 is characterized in that punching mechanism is comprised of two parts about travel mechanism and the fixed mechanism.

6. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine according to claim 5 is characterized in that fixed mechanism comprises fixed dam, receiver, punching platform, and fixed dam is fastenedly connected by nut and base, and bosom is hollow; Described receiver is cuboid, is positioned at the hollow position of fixed dam, is used for receiving barrier film, can release separately; Described punching platform is fastenedly connected by nut and fixed dam, and it is hollow that the centre is column type, leads to the hollow position of fixed dam.

7. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine according to claim 5, it is characterized in that travel mechanism comprises connection baffle plate, annular cutting knife, cutting knife baffle plate, spring, connect baffle plate and be connected with fixed dam by two sliding cylinders, and can slide up and down along sliding cylinder; Described annular cutting knife is column, and the top is minimum, can be inserted in the groove of power transmission shaft bottom, is fastenedly connected by nut and power transmission shaft, and the middle part is maximum, limits the minimum of contraction limit of spring, and the bottom is the cutting knife part, and is slightly less than the circular hole of punching platform; Described cutting knife baffle plate middle part is hollow, and annular cutting knife can just in time pass the cutting knife baffle plate, and the cutting knife baffle plate passes through four springs and is connected the baffle plate connection.

8. use for laboratory small-scale lithium ion cell barrier film sheet-punching machine according to claim 7 is characterized in that the cutting knife part, can dismantle, and the size and dimension of cutting knife can be according to the specification size variation of button cell.

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