CN212070082U - A preparation device for lithium ion battery negative electrode material - Google Patents

Abstract

A device for preparing a negative electrode material for a lithium ion battery, the utility model relates to the technical field of battery material manufacturing; a support frame is fixed on a support table, a motor is fixedly connected to the inner wall of a vertical block on one side of the support frame, and an output shaft of the motor is fixedly connected There is a lead screw, a guide block is threaded through the screw rod, the upper end of the lead screw is provided with a guide rod, the left and right ends of the guide rod are respectively connected and fixed with the vertical blocks in the corresponding support frame, and the upper end of the guide block is movably penetrated. It is arranged on the guide rod, the support table is provided with a guide groove, the bottom end of the guide block slides through the guide groove, the bottom of the guide block is fixedly connected with a support block, the bottom of the support block is fixedly connected with a cylinder, and the bottom of the cylinder pushes A punch block is fixedly connected to the end, and the punch block is arranged on the upper side of the mold; the raw material for preparing the negative electrode material is pressed and formed to fully remove the air between the raw material particles, which can improve the reaction efficiency in the preparation process and is conducive to industrialized production. .

Description

A preparation device for lithium ion battery negative electrode material

technical field

The utility model relates to the technical field of battery material preparation, in particular to a preparation device for a negative electrode material of a lithium ion battery.

Background technique

Lithium-ion battery is a secondary battery (rechargeable battery), which mainly relies on lithium ions to move between the positive and negative electrodes to work; rechargeable lithium-ion batteries are currently the most widely used batteries in modern digital products such as mobile phones and notebook computers. , commonly known as lithium battery; lithium ion battery uses carbon material as negative electrode and lithium-containing compound as positive electrode, the energy density of lithium ion battery mainly depends on the specific capacity of positive electrode and negative electrode material; among them, silicon-based negative electrode The material can form an alloy with lithium and has a very high theoretical capacity (4200mAh/g), and it is cheap and abundant in resources. It is the most potential anode material for lithium-ion batteries in the future; in order to improve the cycle performance of silicon-based anode materials, the elemental Silicon nanoization is a common method. With the reduction of particle size, the volume change of silicon can be reduced to a certain extent, thereby reducing the stress inside the battery. However, in the prior art, low-temperature chemical reactions are used to prepare nanometer In the case of silicon, the method of manually grinding the raw materials is usually used to improve the reaction efficiency, but this method is only suitable for the situation where there are few raw materials, and the manual operation is poor, the efficiency is low, and the yield is low; it needs to be improved urgently.

Utility model content

The purpose of this utility model is to aim at the defects and deficiencies of the prior art, to provide a preparation device for the negative electrode material of lithium ion battery with reasonable design. The reaction efficiency in the preparation process is improved, which is beneficial to industrialized production.

In order to achieve the above purpose, the utility model adopts the following technical solutions: it includes a workbench and a mold, and the workbench is provided with a mold; it also includes a limit mechanism, a pillar, a support table, and a stamping mechanism, and the left and right sides of the mold are provided with Limiting mechanism, the four peripheries of the upper surface of the worktable are fixedly connected with pillars, the top of the pillars is fixedly connected with a support table, and a stamping mechanism is arranged on the support table;

The limit mechanism includes a hydraulic push rod, a push block, a connecting rod, and a limit plate. The left and right sides of the mold are fixedly connected with a hydraulic push rod, and the pushing end of the hydraulic push rod is fixedly connected with a push block. The inner side wall is fixedly connected with a connecting rod symmetrically up and down. The other end of the connecting rod is set in the mold after passing through the side plate of the mold. Surface active contact settings;

The punching mechanism includes a support frame, a guide rod, a guide block, a support block, a cylinder, and a punch block. The support frame is fixed on the support table, and the support frame is arranged in an inverted "U" shape. The inner wall of the vertical block on one side of the support frame A motor is fixedly connected to the upper part, a screw rod is fixedly connected to the output shaft of the motor, and a guide block is threaded through the screw rod through threaded rotation. The upper end of the screw rod is provided with a guide rod. The vertical block in the middle is connected and fixed, the upper end of the guide block is movably penetrated on the guide rod, the support table is provided with a guide groove, the bottom end of the guide block slides through the guide groove, and the bottom of the guide block is fixedly connected with a support block. A cylinder is fixedly connected to the bottom of the support block, a punch block is fixedly connected to the push end of the bottom of the cylinder, and the punch block is arranged on the upper side of the mold; the motor is connected to an external power source, and the cylinder is connected to an external air source.

Further, a slide rail is fixedly connected to the worktable, and the mold is set on the slide rail by sliding left and right at the bottom of the mold. The front and rear sides of the mold are fixedly connected with a positioning block, and the bottom surface of the positioning block is connected to the bottom surface of the worktable. The upper surface is arranged in contact with each other, and several positioning holes are symmetrically arranged in the front and rear on the worktable, and the studs are rotated and penetrated in the positioning block and the positioning holes in sequence from top to bottom through the thread.

Further, baffles are fixedly connected to the front and rear sides of the support frame.

Further, the left and right sides of the mold are fixedly connected with several fixed columns, and the several fixed columns are symmetrically arranged on the front and rear sides of the hydraulic push rod. The movable column, the fixed columns on the upper and lower sides of the slot are provided with guide grooves, and one end of the movable column is fixedly connected with a guide block up and down symmetrically, and the guide blocks slide left and right in the corresponding guide grooves. Block connections are fixed.

Further, a spring is fixedly connected to the inner wall of the slot, and the other end of the spring is connected and fixed to the movable column.

After the above structure is adopted, the beneficial effects of the present invention are as follows: the device for preparing the negative electrode material of a lithium ion battery described in the present utility model performs compression molding on the raw material for preparing the negative electrode material, and fully removes the air between the raw material particles, The reaction efficiency in the preparation process can be improved, and the industrial production is favorable.

Description of drawings:

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a left side view of FIG. 1 .

FIG. 3 is a plan view of FIG. 1 .

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3 .

5 is a schematic diagram of the connection between the fixed column and the movable column in the present invention.

Description of reference numbers:

Workbench 1, positioning hole 1-1, mold 2, limit mechanism 3, hydraulic push rod 3-1, push block 3-2, connecting rod 3-3, limit plate 3-4, pillar 4, support table 5 , guide groove 5-1, punching mechanism 6, support frame 6-1, guide rod 6-2, guide block 6-3, support block 6-4, cylinder 6-5, punch block 6-6, motor 6-7 , screw 6-8, slide rail 7, positioning block 8, stud 9, baffle 10, fixed column 11, slot 11-1, guide slot 11-2, movable column 12, guide block 13, spring 14.

Detailed ways:

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Fig. 1-Fig. 5, this specific embodiment adopts the following technical scheme: it comprises a workbench 1, a mold 2, a mold 2 is provided on the workbench 1, a slide rail 7 is welded and fixed on the workbench 1, and the mold 2 passes through The chute at the bottom is slid left and right on the slide rail 7, the front and rear sides of the mold 2 are welded and fixed with a positioning block 8, the bottom surface of the positioning block 8 is arranged in contact with the upper surface of the worktable 1, and the front and rear of the worktable 1 are symmetrically arranged. There are several positioning holes 1-1, and the stud 9 is rotated through the thread from top to bottom in the positioning block 8 and the positioning holes 1-1, and slides in the left and right directions through the slide rail 7 and the chute at the bottom of the mold 2 It also includes a limit mechanism 3, a pillar 4, a support table 5, and a stamping mechanism 6. The left and right sides of the mold 2 are provided with a limit mechanism 3. A pillar 4 is welded and fixed on the periphery, a support table 5 is welded and fixed on the top of the pillar 4, and a stamping mechanism 6 is arranged on the support table 5;

The limit mechanism 3 includes a hydraulic push rod 3-1, a push block 3-2, a connecting rod 3-3, and a limit plate 3-4, and the left and right sides of the mold 2 are fixed with a hydraulic cylinder with a model of QD. Push rod 3-1, a push block 3-2 is welded and fixed on the push end of the hydraulic push rod 3-1, and a connecting rod 3-3 is welded and fixed on the inner side wall of the push block 3-2 symmetrically up and down. After the other end passes through the side plate of the mold 2, it is set in the mold 2. The other end of the connecting rod 3-3 is welded and fixed to the limit plate 3-4, and the lower surface of the limit plate 3-4 is connected to the upper surface of the mold 2. The movable contact setting, the left and right sides of the mold 2 are welded and fixed with two fixed columns 11, the two fixed columns 11 are symmetrically arranged on the front and rear sides of the hydraulic push rod 3-1, and one side of the fixed column 11 is provided with a slot 11. -1, a movable column 12 is movably arranged in the slot 11-1, a spring 14 is welded and fixed on the inner wall of the slot 11-1, the other end of the spring 14 is welded and fixed to the movable column 12, and the upper and lower sides of the slot 11-1 are fixed by welding. The fixed column 11 is provided with a guide groove 11-2 through it, and one end of the movable column 12 is welded and fixed with a guide block 13 symmetrically up and down. The guide block 13 slides left and right in the corresponding guide groove 11-2. One end is welded and fixed with the push block 3-2, and the hydraulic push rod 3-1 is guided by the movable column 12 in the process of pushing the push block 3-2 to move;

The punching mechanism 6 includes a support frame 6-1, a guide rod 6-2, a guide block 6-3, a support block 6-4, a cylinder 6-5, a punch block 6-6, and the support frame 6-1 is welded and fixed on the On the support table 5, the support frame 6-1 is set in an inverted "U" shape structure, and the inner wall of the vertical block on one side of the support frame 6-1 is fixed with a motor 6-7 with a model of 60KTYZ, and the output of the motor 6-7 is fixed with screws. A lead screw 6-8 is welded and fixed on the shaft, and a guide block 6-3 is passed through the lead screw 6-8 through threaded rotation. The upper end of the lead screw 6-8 is provided with a guide rod 6-2. The left and right ends are respectively welded and fixed with the vertical blocks in the corresponding support frame 6-1, the upper end of the guide block 6-3 is movably worn on the guide rod 6-2, and the support table 5 is provided with a guide groove 5-1 for guiding The bottom end of the block 6-3 slides through the guide groove 5-1, the bottom of the guide block 6-3 is welded and fixed with a support block 6-4, and the bottom of the support block 6-4 is fixed with a TN20 cylinder by screws 6-5, a punch block 6-6 is welded and fixed on the push end of the bottom of the cylinder 6-5, and the punch block 6-6 is arranged on the upper side of the mold 2; the front and rear sides of the support frame 6-1 are fixed by screws with stoppers The plate 10 hides the motor 6-7, the lead screw 6-8 and the guide rod 6-2 through the baffle 10, which improves the safety during use; the motor 6-7 is connected to the external power supply through the power cord, and the cylinder 6- 5 Connect to the external air source through the trachea.

The working principle of this specific embodiment: when using the device, manually place the preparation material for the negative electrode material, such as nano-silicon, in the mold 2, and limit the preparation material through the limit plates 3-4 on the left and right sides, The push block 3-2 is driven by the hydraulic push rod 3-1, and the limit plate 3-4 is driven by the connecting rod 3-3, so that the limit plates 3-4 on the left and right sides limit the preparation material In the process of driving the push block 3-2 to push, the hydraulic push rod 3-1 guides the push block 3-2 through the sliding cooperation between the movable column 12 and the fixed column 11; The rail 7 can manually push the mold 2 on the table 1, and is set by screwing the stud 9 with the positioning block 8 and the positioning hole 1-1, so that the mold 2 is fixed on the table 1, and the mold 2 is fixed on the table 1. The fixed position of 2 can adjust the position of the mold 2 according to the actual needs; through the rotation of the motor 6-7, the lead screw 6-8 is driven to rotate, so that the guide block 6-3 on it moves, and the guide block 6-3 moves The guiding operation is carried out through the guide rod 6-2 at the upper end thereof, and the guide block 6-3 drives the supporting block to move during the moving process, so that the punching block 6-6 moves, so that the punching block 6-6 is located in the preparation material to be punched. Above, the punching block 6-6 is driven downward by the cylinder 6-5 to punch down, so that the punching block 6-6 performs a punching operation on the preparation material, so that the air between the raw material particles in the preparation material is fully removed.

After adopting the above-mentioned structure, the beneficial effects of this specific embodiment are as follows:

1. By setting the left-right symmetrical limit plate 3-4 in the mold 2, the limit operation is performed on the preparation material in the mold 2 through the limit plate 3-4, and the push block 3-2 is pushed through the hydraulic push rod 3-1. , thereby driving the limit plate 3-4 to move;

2. Drive the guide block 6-3 to move, thereby driving the punch block 6-6 to move to the upper end of the preparation material, and push it through the cylinder 6-5, so that the punch block 6-6 squeezes the preparation material, so that the particles are The air in between is fully removed;

3. According to the actual use requirements, the mold 2 can be adjusted manually, so that the mold 2 can be taken out or installed.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principle of the present utility model, any modifications, equivalent replacements, improvements, etc. made shall be included within the protection scope of the present utility model.

Claims (5)

1. A preparation device of a lithium ion battery negative electrode material, it comprises a workbench (1), a mould (2), and the workbench (1) is provided with a mould (2); it is characterized in that: it also comprises a limit mechanism ( 3), the pillar (4), the support table (5), the stamping mechanism (6), the left and right sides of the die (2) are provided with a limiting mechanism (3), and the four peripheries of the upper surface of the worktable (1) are fixed A pillar (4) is connected, the top of the pillar (4) is fixedly connected with a support table (5), and a punching mechanism (6) is arranged on the support table (5); The limiting mechanism (3) includes a hydraulic push rod (3-1), a push block (3-2), a connecting rod (3-3), a limiting plate (3-4), and the left and right sides of the mold (2). A hydraulic push rod (3-1) is fixedly connected on both sides, a push block (3-2) is fixedly connected to the push end of the hydraulic push rod (3-1), and the inner side wall of the push block (3-2) is symmetrical up and down A connecting rod (3-3) is fixedly connected, the other end of the connecting rod (3-3) is arranged in the mold (2) after passing through the side plate of the mold (2), and the other end of the connecting rod (3-3) is connected and fixed with the limit plate (3-4), and the lower surface of the limit plate (3-4) is arranged in movable contact with the upper surface of the mold (2); The punching mechanism (6) comprises a support frame (6-1), a guide rod (6-2), a guide block (6-3), a support block (6-4), a cylinder (6-5), a punch block (6-6), the support frame (6-1) is fixed on the support table (5), the support frame (6-1) is arranged in an inverted "U" shape, and the vertical block on one side of the support frame (6-1) A motor (6-7) is fixedly connected to the inner wall, a screw rod (6-8) is fixedly connected to the output shaft of the motor (6-7), and a guide block (6-8) is threaded through the screw rod (6-8). 6-3), the upper end of the screw rod (6-8) is provided with a guide rod (6-2), and the left and right ends of the guide rod (6-2) are respectively connected with the vertical blocks in the corresponding support frame (6-1). The connection is fixed, the upper end of the guide block (6-3) is movably passed through the guide rod (6-2), the support table (5) is provided with a guide groove (5-1), and the bottom of the guide block (6-3) is provided with a guide groove (5-1). The end slides through the guide groove (5-1), the bottom of the guide block (6-3) is fixedly connected with a support block (6-4), and the bottom of the support block (6-4) is fixedly connected with a cylinder (6- 5), a punch block (6-6) is fixedly connected to the bottom pushing end of the cylinder (6-5), and the punch block (6-6) is arranged on the upper side of the mold (2); the motor (6-7) is connected to the external The power supply is connected, and the cylinder (6-5) is connected to the external air source. 2. The preparation device of a lithium-ion battery negative electrode material according to claim 1, wherein the working table (1) is fixedly connected with a slide rail (7), and the mold (2) passes through the bottom of the The chute is slid left and right on the slide rail (7), the front and rear sides of the mold (2) are fixedly connected with positioning blocks (8), and the bottom surface of the positioning block (8) is arranged in contact with the upper surface of the workbench (1). A plurality of positioning holes (1-1) are symmetrically arranged on the worktable (1) in the front and rear, and the studs (9) are rotated and penetrated in the positioning block (8) and the positioning holes (1-1) in sequence from top to bottom through threads. 3 . The device for preparing a lithium ion battery negative electrode material according to claim 1 , wherein baffle plates ( 10 ) are fixedly connected to both front and rear sides of the support frame ( 6 - 1 ). 4 . 4. The preparation device of a lithium-ion battery negative electrode material according to claim 1, wherein the left and right sides of the mold (2) are fixedly connected with several fixed posts (11), and several fixed posts (11) Symmetrically arranged on the front and rear sides of the hydraulic push rod (3-1), one side of the fixed column (11) is provided with a slot (11-1), and a movable column is movably arranged in the slot (11-1). (12), a guide groove (11-2) is provided through the fixed column (11) on the upper and lower sides of the slot (11-1), and a guide block (13) is symmetrically and fixedly connected at one end of the movable column (12) up and down. , the guide block (13) is slid left and right in the corresponding guide groove (11-2), and the other end of the movable column (12) is connected and fixed with the push block (3-2). 5. The device for preparing a lithium-ion battery negative electrode material according to claim 4, wherein a spring (14) is fixedly connected to the inner wall of the slot (11-1), and the spring (14) is The other end is connected and fixed with the movable column (12).

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