Powder adding device of fast-charging lithium battery

Abstract

The utility model relates to the technical field of lithium battery production equipment, in particular to a powder adding device of a fast-charging lithium battery, which comprises a rack, a stock bin arranged at the top of the rack, and a vacuum compressor arranged on the rack, a vacuum pipe is connected between the vacuum compressor and the stock bin; the stock bin is connected with a feeding pipe; the bottom of the stock bin is connected with a discharge pipe; a star-shaped discharger is arranged at a discharge port of the discharge pipe; rolling wheels are arranged at the four corners of the bottom of the machine frame. By adopting the powder adding device provided by the utility model, the problem that dust pollution is caused to a workshop environment due to the fact that powder drifts in the air when powder materials are poured on production equipment in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production equipment, in particular to a powder adding device for a fast-charging lithium battery. Background Art

[0002] Soft-pack lithium-ion batteries are developing rapidly. The production cycle and safety performance of lithium-ion batteries are extremely important. On the premise of ensuring safety performance, improving production efficiency is conducive to gaining a favorable position in the fierce market competition. In the production process of soft-pack lithium-ion batteries, improving the efficiency of powder conveying and transfer is an important measure to improve production efficiency.

[0003] The materials used in the production of fast-charging lithium batteries are in powder form. The incoming materials are packed in boxes, and the total amount of powder in the box is large, so a forklift is required to move the whole box of powder materials. During the production of lithium batteries, the powder in the box needs to be transferred to the production equipment. However, due to the heavy weight of the whole box of powder materials, it is more troublesome to use a forklift to transport it. In addition, if a forklift is used for transportation, when the powder material in the box is dumped on the production equipment, it is easy to cause the powder to float in the air, causing dust pollution to the workshop environment. Utility Model Content

[0004] The main purpose of the utility model is to provide a powder adding device for a fast-charging lithium battery, aiming to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the utility model proposes a powder adding device for fast-charging lithium batteries, comprising a frame, a silo arranged on the top of the frame, and a vacuum compressor arranged on the frame; a vacuum tube is connected between the vacuum compressor and the silo; a feeding pipe is connected to the silo; a discharging pipe is connected to the bottom of the silo; a star-shaped unloader is arranged at the discharge port of the discharging pipe; and rollers are arranged at the four corners of the bottom of the frame.

[0006] Preferably, an air hammer is installed on the outer wall of the middle part of the discharge pipe.

[0007] Preferably, the discharge pipe is arranged at an angle, and the angle between the axis of the discharge pipe and the vertical direction is β, β=40 to 50 degrees.

[0008] Preferably, a spiral push rod is arranged inside the discharge pipe, and the spiral push rod includes a rod body and spiral blades arranged on the outer peripheral surface of the rod body; the frame includes two L-shaped support rods, a cross beam is arranged between the two L-shaped support rods, and a motor is arranged on the cross beam; the upper end of the rod body extends out from the silo and is connected to the output shaft of the motor.

[0009] Preferably, a rotating shaft seat is welded on the outer wall of the silo; and the rod body is inserted into the rotating shaft seat.

[0010] Preferably, the frame includes an upper frame, a lower frame, two vertical poles and two diagonal bracing rods; the two vertical poles are vertically welded at two right-angle positions at the right end of the lower frame; the upper frame is welded to the tops of the two vertical poles; the lower ends of the two diagonal bracing rods are welded at two right-angle positions at the left end of the lower frame, and the upper ends of the two diagonal bracing rods are welded at two right-angle positions at the left end of the upper frame; an oblique beam is welded between the right-angle portion of the right end of the upper frame and the vertical pole.

[0011] Preferably, the lower end of the silo is inserted into the upper frame; four overlapping blocks are welded on the outer peripheral surface of the silo, and the overlapping blocks are overlapped on the top surface of the upper frame and screwed.

[0012] Preferably, the vacuum compressor is installed on the top surface of the left half of the lower frame.

[0013] Preferably, a first flange is provided at the discharge port of the discharge pipe; a second flange is provided on the star-shaped discharger; and the first flange is connected to the second flange by bolts.

[0014] Preferably, a third flange is provided at the lower end of the silo; a fourth flange is provided at the inlet end of the discharge pipe; and the third flange is connected to the fourth flange by bolts.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows:

[0016] (1) In the present invention, rollers are arranged at the bottom of the frame so that the entire powder adding device can be moved. When adding materials is needed, the vacuum compressor can be used to evacuate the silo to form a negative pressure in the silo, and the powder material can be sucked into the silo by the feeding pipe for temporary storage. Then, the entire powder adding device is pushed to move closer to the production equipment, and the star-shaped discharger can be opened to add powder. The powder adding device provided by the present invention overcomes the problem in the prior art that when the powder material is dumped on the production equipment, the powder is scattered in the air, causing dust pollution to the workshop environment.

[0017] (2) Since lithium battery materials are powders with a certain degree of adhesion, the powders are easily adsorbed and accumulated in the discharge pipe, causing the discharge pipe to be blocked. Therefore, the utility model installs an air hammer on the outer wall of the middle part of the discharge pipe to knock the pipe and use vibration to make the powder fall off.

[0018] (3) In the present invention, a spiral push rod is provided inside the discharge pipe, which can not only achieve the function of rapid material discharge, but also enable the spiral blades on the spiral push rod to scrape off the powder adhered to the inner wall of the discharge pipe, thereby further avoiding blockage of the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is a three-dimensional structural diagram of the powder adding device provided by the utility model;

[0021] Figure 2 This is a front view of the powder adding device provided by the utility model;

[0022] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0023] Explanation of the accompanying drawings: 1. Frame; 1a. L-shaped support rod; 1b. Crossbeam; 1c. Upper frame; 1d. Lower frame; 1e. Vertical rod; 1f. Diagonal support rod; 1g. Diagonal beam; 2. Silo; 2a. Rotating shaft seat; 2b. Third flange edge; 3. Vacuum compressor; 4. Vacuum tube; 5. Discharge pipe; 5a. First flange edge; 5b. Fourth flange edge; 6. Roller; 7. Star-shaped unloader; 7a. Second flange edge; 8. Feeding pipe; 9. Air hammer; 10. Screw push rod; 10a. Rod body; 10b. Spiral blade; 11. Motor; 12. Overlap block; 13. Screw. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] Combination Figures 1 to 3 As shown, a specific embodiment of a powder adding device for a fast-charging lithium battery provided by the utility model includes a frame 1, a silo 2 arranged on the top of the frame 1, and a vacuum compressor 3 arranged on the frame 1; a vacuum tube 4 is connected between the vacuum compressor 3 and the silo 2; a feeding pipe 8 is connected to the silo 2; a discharge pipe 5 is connected to the bottom of the silo 2; a star-shaped discharger 7 is arranged at the discharge port of the discharge pipe 5; rollers 6 are arranged at the four corners of the bottom of the frame 1, so that the entire powder adding device can be moved. When adding materials is needed, the silo 2 is evacuated by the vacuum compressor 3 to form a negative pressure in the silo 2, and the powder material is sucked into the interior of the silo 2 by the feeding pipe 8 for temporary storage, and then the entire powder adding device is pushed to move close to the production equipment, and the star-shaped discharger 7 is opened to add powder. The utility model adopts negative pressure suction to suck powder into the silo 2, which effectively solves the problem in the prior art that when powder materials are dumped on production equipment, the powder is scattered in the air, causing dust pollution to the workshop environment.

[0028] Combination Figure 1 , Figure 2 As shown, since the lithium battery material is powder and has a certain degree of adhesion, the powder is easily adsorbed and accumulated in the discharge pipe 5, causing the discharge pipe to be blocked. Therefore, an air hammer 9 is installed on the outer wall of the middle part of the discharge pipe 5 to knock the pipe and use vibration to make the powder fall off.

[0029] Combination Figure 1 , Figure 2 As shown, the discharge pipe 5 is tilted, and the angle between the axis of the discharge pipe 5 and the vertical direction is β, β = 40 to 50 degrees. The purpose of the tilted setting is to avoid interference between the frame 1 and the production equipment when feeding.

[0030] Combination Figure 1 , Figure 2As shown, a spiral push rod 10 is arranged inside the discharge pipe 5, and the spiral push rod 10 includes a rod body 10a and a spiral blade 10b arranged on the outer peripheral surface of the rod body 10a; the frame 1 includes two L-shaped support rods 1a, a crossbeam 1b is arranged between the two L-shaped support rods 1a, and a motor 11 is arranged on the crossbeam 1b; the upper end of the rod body 10a extends out of the silo 2 and is connected to the output shaft of the motor 11. The spiral push rod 10 is arranged to play a role in rapid material discharge, and the spiral blade 10b on the spiral push rod 10 can scrape off the powder adhered to the inner wall of the discharge pipe 5, further avoiding clogging of the discharge pipe 5.

[0031] Combination Figure 2 As shown, a rotating shaft seat 2a is welded on the outer wall of the silo 2; and the rod body 10a is inserted into the rotating shaft seat 2a.

[0032] Combination Figure 1 , Figure 2 As shown, the frame 1 includes an upper frame 1c, a lower frame 1d, two vertical poles 1e and two diagonal bracing rods 1f; the two vertical poles 1e are respectively vertically welded at two right-angle positions at the right end of the lower frame 1d; the upper frame 1c is welded to the tops of the two vertical poles 1e; the lower ends of the two diagonal bracing rods 1f are respectively welded at two right-angle positions at the left end of the lower frame 1d, and the upper ends of the two diagonal bracing rods 1f are respectively welded at two right-angle positions at the left end of the upper frame 1c; an oblique beam 1g is welded between the right-angle portion of the right end of the upper frame 1c and the vertical pole 1e.

[0033] Combination Figures 1 to 3 As shown, the lower end of the silo 2 is inserted into the upper frame 1c; four overlapping blocks 12 are welded on the outer peripheral surface of the silo 2, and the overlapping blocks 12 are overlapped on the top surface of the upper frame 1c and screwed with screws 13.

[0034] Combination Figure 1 , Figure 2 As shown, due to the inclined setting of the discharge pipe 5, the lower end of the discharge pipe 5 is inclined away from the right side of the frame 1, and the vertical rod 1e is vertically welded at two right angles on the right end of the lower frame 1d. This structure causes the discharge pipe 5 to form a turning moment on the frame 1. In order to balance the moment, the vacuum compressor 3 is installed on the top surface of the left half of the lower frame 1d.

[0035] Combination Figure 2 As shown, a first flange 5a is provided at the discharge port of the discharge pipe 5; a second flange 7a is provided on the star-shaped discharger 7; the first flange 5a and the second flange 7a are connected by bolts to facilitate the disassembly and assembly of the star-shaped discharger 7.

[0036] Furthermore, a third flange 2b is provided at the lower end of the silo 2; a fourth flange 5b is provided at the inlet end of the discharge pipe 5; the third flange 2b and the fourth flange 5b are connected by bolts to facilitate disassembly and assembly of the discharge pipe 5.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A powder adding device for fast-charging lithium batteries, characterized in that: It comprises a frame (1), a material bin (2) arranged on the top of the frame (1), and a vacuum compressor (3) arranged on the frame (1); A vacuum tube (4) is connected between the vacuum compressor (3) and the silo (2); and a feeding tube (8) is connected to the silo (2); A discharge pipe (5) is connected to the bottom of the silo (2); a star-shaped discharger (7) is provided at the discharge port of the discharge pipe (5); Rollers (6) are arranged at the four corners of the bottom of the frame (1).

2. A powder adding device for a fast-charging lithium battery as claimed in claim 1, characterized in that: An air hammer (9) is installed on the outer wall of the middle part of the discharge pipe (5).

3. The powder adding device for a fast-charging lithium battery according to claim 1, characterized in that: The discharge pipe (5) is arranged tilted, and the angle between the axis of the discharge pipe (5) and the vertical direction is β, β=40-50 degrees.

4. The powder adding device for a fast-charging lithium battery according to claim 1, characterized in that: A spiral push rod (10) is arranged inside the discharge pipe (5), and the spiral push rod (10) comprises a rod body (10a) and spiral blades (10b) arranged on the outer peripheral surface of the rod body (10a); The frame (1) comprises two L-shaped support rods (1a), a crossbeam (1b) is arranged between the two L-shaped support rods (1a), and a motor (11) is arranged on the crossbeam (1b); The upper end of the rod body (10a) extends out from the silo (2) and is connected to the output shaft of the motor (11).

5. A powder adding device for a fast-charging lithium battery as claimed in claim 4, characterized in that: A rotating shaft seat (2a) is welded on the outer wall of the silo (2); and the rod body (10a) is inserted into the rotating shaft seat (2a).

6. The powder adding device for a fast-charging lithium battery according to claim 1, characterized in that: The frame (1) comprises an upper frame (1c), a lower frame (1d), two vertical poles (1e) and two diagonal bracing poles (1f); Two vertical poles (1e) are respectively vertically welded at two right angles on the right end of the lower frame (1d); The upper frame (1c) is welded to the tops of the two vertical poles (1e); The lower ends of the two diagonal braces (1f) are respectively welded to two right-angle positions on the left end of the lower frame (1d), and the upper ends of the two diagonal braces (1f) are respectively welded to two right-angle positions on the left end of the upper frame (1c); An inclined beam (1g) is welded between the right angle portion of the right end of the upper frame (1c) and the vertical pole (1e).

7. A powder adding device for a fast-charging lithium battery as claimed in claim 6, characterized in that: The lower end of the silo (2) is inserted into the upper frame (1c); four overlapping blocks (12) are welded on the outer peripheral surface of the silo (2), and the overlapping blocks (12) are overlapped on the top surface of the upper frame (1c) and screwed with screws (13).

8. A powder adding device for a fast-charging lithium battery as claimed in claim 6, characterized in that: The vacuum compressor (3) is mounted on the top surface of the left half of the lower frame (1d).

9. The powder adding device for a fast-charging lithium battery according to claim 1, characterized in that: A first flange (5a) is provided at the discharge port of the discharge pipe (5); a second flange (7a) is provided on the star-shaped discharger (7); and the first flange (5a) and the second flange (7a) are connected by bolts.

10. The powder adding device for fast-charging lithium battery according to claim 1, characterized in that: A third flange (2b) is provided at the lower end of the silo (2); a fourth flange (5b) is provided at the inlet end of the discharge pipe (5); the third flange (2b) and the fourth flange (5b) are connected by bolts.

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