CN215028244U

CN215028244U - Vacuum preparation equipment for battery slurry

Info

Publication number: CN215028244U
Application number: CN202120784916.6U
Authority: CN
Inventors: 张�杰; 张玉
Original assignee: Wuhan Hilans Automation Machine Co ltd
Current assignee: Wuhan Hilans Automation Machine Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-12-07
Anticipated expiration: 2031-04-16

Abstract

The utility model relates to a lithium battery manufacturing equipment technical field, battery slurry vacuum preparation equipment, which comprises a working box, a feeding cylinder, a stirring mechanism and a liquid inlet pipe, wherein the stirring mechanism is arranged inside the working box, the stirring mechanism is connected with a motor, a lead screw and a rotating shaft are arranged in the stirring mechanism, the motor continuously rotates forwards and backwards, the rotating shaft is driven by the lead screw to rotate and lift, so that the stirring mechanism not only can horizontally stir raw materials in the working process, but also can stir up and down, the stirring effect is better, a plurality of stirring blades are arranged on the outer wall of the rotating shaft through a rotating seat, the stirring blades are overturned up and down around the rotating seat to drive the raw materials to be overturned up and down, thereby the stirring mechanism can stir and mix the raw materials more evenly, the prepared slurry has better effect, and a scraper blade is arranged in the stirring mechanism, in the stirring process, the scraper continuously scrapes and washes the inner wall of the working box, so that the raw materials adhered to the inner wall of the working box are effectively reduced.

Description

Vacuum preparation equipment for battery slurry

Technical Field

The utility model relates to a lithium cell manufacture equipment technical field specifically is battery thick liquids vacuum preparation is equipped.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. With the development of science and technology, lithium batteries have become the mainstream nowadays. Electrode slurry is an indispensable raw material for producing lithium batteries, a wet mixing process is mostly adopted in the electrode slurry mixing process, the basic process is that substances such as a binder, a conductive agent and the like are mixed and stirred firstly, then active substances are added for full stirring and dispersion, finally a proper amount of solvent is added for viscosity adjustment so as to be suitable for coating, which is the current domestic mainstream process, in the production process of the electrode slurry, the raw materials are easy to adhere to the inner wall of the stirring tank, so that the problem of uneven mixing is caused, meanwhile, most of the existing stirring and mixing devices adopt a horizontal stirring mode, the stirring mode is single, so that the running efficiency of the stirring and mixing device is not high, and the mixing fineness is not high, so that the mixing uniformity of the electrode slurry is limited, and the quality of a finished product is not high.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a battery thick liquids vacuum preparation is equipped, and the mixture between the raw materials is more even, and production efficiency is higher.

In order to achieve the above object, the utility model provides a following technical scheme: comprises a working box, a feeding cylinder, a stirring mechanism and a liquid inlet pipe, wherein the stirring mechanism is arranged in the working box, the stirring mechanism is connected with a motor, the motor is fixedly arranged on the top wall of a support, the support is fixedly arranged on the top wall of the working box, the feeding cylinder is fixedly arranged on the top wall of the working box at the same time, the bottom of the feeding cylinder extends into the working box, the liquid inlet pipe is fixedly arranged on one side of the top wall of the working box far away from the feeding cylinder, the liquid inlet pipe is communicated with an external solvent, the bottom wall of the working box is arranged into a conical shape, a discharge hole is arranged at the bottom of the conical shape, a discharge valve is arranged at the discharge hole, an annular air bag is fixedly arranged in the conical side wall, the surface of the annular air bag extends out of the conical side wall, the air bag is communicated with a connecting block, the connecting block is arranged on the bottom wall of the working box, and the connecting block is connected with a telescopic rod, the telescopic link fixed mounting is on the roof of liquid pump, and the liquid pump is installed on the bottom surface of working.

As a further aspect of the present invention: the rabbling mechanism includes the lead screw, the apparatus further comprises a rotating shaft, stirring leaf and scraper blade, the lead screw passes through the coupling joint on the output shaft of motor, and blind groove has been seted up at the top of pivot, the internal thread has been seted up in the blind groove, the inside at blind groove is installed to the lead screw thread, wherein lead screw and pivot stretch into the inside of work box, be provided with many stirring leaves simultaneously on the lateral wall of pivot, the stirring leaf rotates the tip of installing at the rotation seat, wherein rotate a fixed mounting on the lateral wall of pivot, and install a pair of horizontal pole on the lateral wall of pivot, the horizontal pole is located the top of stirring leaf, wherein the other end fixed mounting of horizontal pole has the montant, fixed mounting has multiunit compensating mechanism on the montant is close to a lateral wall of work box, compensating mechanism's other end fixed mounting has the scraper blade, the inner wall sliding contact of scraper blade and work box is in the same place.

As a further aspect of the present invention: the inside of a feeding cylinder is provided with propeller blades, the propeller blades are fixedly installed on the outer wall of a driving shaft, the driving shaft is rotatably installed on the top wall of the feeding cylinder, meanwhile, a partition plate is horizontally installed inside the feeding cylinder, a feeding pipe is installed on the side wall of the feeding cylinder in an inclined mode, the feeding pipe is located below the partition plate, meanwhile, a first bevel gear is fixedly installed on the outer wall of the driving shaft and located above the partition plate, a second bevel gear is meshed on the outer wall of the first bevel gear, the second bevel gear is fixedly installed on the outer wall of the end portion of a transmission shaft, the transmission shaft extends out from the side walls of the feeding cylinder and a support, a third bevel gear is fixedly installed on the outer wall of the extending end of the transmission shaft, a fourth bevel gear is meshed on the outer wall of the third bevel gear in the same mode, and the fourth bevel gear is fixedly installed on the outer wall of a screw rod.

As a further aspect of the present invention: the gas storage chamber has been seted up to the inside of connecting block to the gas guide groove has been seted up to the bottom symmetry of gasbag, and gas guide groove and gas storage chamber communicate together, and the bottom slidable mounting in gas storage chamber has the piston simultaneously, and the diapire of piston and the roof of telescopic link together.

As a further aspect of the present invention: the compensation mechanism comprises a fixed block and a moving block, wherein the fixed block is fixedly mounted on the side wall of the vertical rod, an inner cavity is formed in the fixed block, a sliding plate is slidably mounted in the inner cavity, the moving block is fixedly mounted on the side wall, away from the vertical rod, of the sliding plate, the end portion of the moving block extends out of the side wall of the inner cavity, the extending end of the moving block is fixedly mounted on the side wall of the scraping plate, a compensation spring is fixedly mounted on the side wall, away from the moving block, of the sliding plate, and the other end of the compensation spring is fixedly mounted on the side wall of the inner cavity.

As a further aspect of the present invention: and a plurality of supporting columns are fixedly arranged at the bottom of the working box.

As a further aspect of the present invention: and a damping backing plate is fixedly arranged on the bottom wall of the liquid pump.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model is provided with a stirring mechanism, a screw rod and a rotating shaft are arranged in the stirring mechanism, a motor continuously rotates forwards and backwards, the rotating shaft is driven by the screw rod to rotate and lift, thereby the stirring mechanism not only can realize horizontal stirring to raw materials in the working process, but also can stir up and down, the stirring effect is better, and a plurality of stirring blades are arranged on the outer wall of the rotating shaft through a rotating seat, the stirring blades are overturned up and down around the rotating seat, thereby the raw materials are driven to stir up and down, thereby the stirring mechanism can stir and mix the raw materials more uniformly, thereby the prepared slurry has better effect, meanwhile, a scraper blade is arranged in the stirring mechanism, during the stirring process, the scraper blade continuously scrapes and washes the inner wall of the working box, the raw materials adhered to the inner wall of the working box can be effectively reduced, the scraper blade is arranged through a compensation mechanism, the friction loss is compensated through a compensation spring in the compensation mechanism, the scraper is abutted against the inner wall of the working box, so that the scraping and washing effect of the scraper is ensured, the yield of the device is increased, and the economic benefit is higher.

Drawings

Fig. 1 is a schematic view of the internal structure of the working box of the present invention.

Fig. 2 is a schematic structural diagram of the stirring mechanism of the present invention.

Fig. 3 is a top view of the compensating mechanism of the present invention.

Fig. 4 is a schematic view of the internal structure of the feeding cylinder of the present invention.

Fig. 5 is an enlarged schematic view of the detail at a of the present invention.

Fig. 6 is a schematic view of the internal structure of the connecting block of the present invention.

As shown in the figure: 1. the device comprises a working box, 2, a feeding cylinder, 3, a stirring mechanism, 4, a support, 5, a motor, 6, a liquid inlet pipe, 7, an air bag, 8, a connecting block, 9, a telescopic rod, 10, a liquid pump, 11, a discharge valve, 12, a lead screw, 13, a rotating shaft, 14, a stirring blade, 15, a blind groove, 16, a rotating seat, 17, a cross rod, 18, a vertical rod, 19, a scraping plate, 20, a compensation mechanism, 21, a fixed block, 22, an inner cavity, 23, a sliding plate, 24, a compensation spring, 25, a moving block, 26, a spiral blade, 27, a driving shaft, 28, a partition plate, 29, a feeding pipe, 30, a first bevel gear, 31, a second bevel gear, 32, a transmission shaft, 33, a third bevel gear, 34, a fourth bevel gear, 35, an air guide groove, 36, an air storage cavity, 37, a piston, 38 and a shock absorption cushion plate.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, in the embodiment of the present invention, a vacuum battery slurry preparing apparatus includes a working box 1, a feeding cylinder 2, a stirring mechanism 3 and a liquid inlet pipe 6, wherein the stirring mechanism is disposed inside the working box 1, the stirring mechanism is connected to a motor 5, the motor 5 is fixedly mounted on a top wall of a support 4, the support 4 is fixedly mounted on a top wall of the working box 1, the feeding cylinder 2 is fixedly mounted on the top wall of the working box 1, a bottom of the feeding cylinder 2 extends into the working box 1, a raw material is introduced into the working box 1 through the feeding cylinder 2, the liquid inlet pipe 6 is fixedly mounted on a side of the top wall of the working box 1 away from the feeding cylinder 2, the liquid inlet pipe 6 is communicated with an external solvent to adjust a concentration of slurry, a bottom wall of the working box 1 is set to be a cone shape, a discharge port is disposed at a bottom of the cone shape, and a discharge valve 11 is mounted at the discharge port, control work box 1 arranges the material motion, and fixed mounting has annular gasbag 7 in the toper type lateral wall, the surface of annular gasbag 7 stretches out from the toper type lateral wall, wherein gasbag 7 and connecting block 8 intercommunication are in the same place, connecting block 8 is installed on work box 1's diapire, through the inside gaseous motion of connecting block 8 control gasbag 7, realize the cycle of gasbag 7 and bulge the motion, the raw materials jack-up that precipitates 1 bottom of work box, avoid the raw materials to take place to precipitate the phenomenon of layering, connecting block 8 and telescopic link 9 link together simultaneously, telescopic link 9 fixed mounting is on the roof of liquid pump 10, carry out concertina movement through liquid pump 10 drive telescopic link 9, liquid pump 10 is installed on the work bottom surface, and the bottom fixed mounting of work box 1 has many spinal branchs support column, realize the support to work box 1.

Referring to FIGS. 2-3, it can be seen that: the stirring mechanism 3 comprises a screw rod 12, a rotating shaft 13, stirring blades 14 and a scraper 19, the screw rod 12 is connected to an output shaft of the motor 5 through a coupler, a blind groove 15 is formed in the top of the rotating shaft 13, an internal thread is formed in the blind groove 15, the screw rod 12 is installed inside the blind groove 15 in a threaded manner, the screw rod 12 and the rotating shaft 13 extend into the working box 1, a plurality of stirring blades 14 are arranged on the side wall of the rotating shaft 13, the stirring blades 14 are rotatably installed at the end part of a rotating seat 16, the rotating seat 16 is fixedly installed on the side wall of the rotating shaft 13, a pair of cross rods 17 are installed on the side wall of the rotating shaft 13, the cross rods 17 are located above the stirring blades 14, a vertical rod 18 is fixedly installed at the other end of the cross rods 17, a plurality of compensation mechanisms 20 are fixedly installed on one side wall of the vertical rod 18 close to the working box 1, and the scraper 19 is fixedly installed at the other end of the compensation mechanisms 20, the scraper 19 is in sliding contact with the inner wall of the working box 1; in the working process, the motor 5 is started to drive the screw 12 to rotate, the screw 12 drives the rotating shaft 13 to rotate while rotating, and the rotating shaft 13 moves upwards along the screw 12 while rotating, when the screw 12 contacts with the bottom wall of the blind groove 15, the motor 5 rotates reversely, and drives the rotating shaft 13 to move downwards, so that the motor 5 continuously rotates forwards and backwards, and drives the rotating shaft 13 to rotate and lift, thereby the stirring mechanism 3 not only can horizontally stir the raw material in the working process, but also can stir up and down, meanwhile, in the stirring process, because the viscosity of the raw material is higher, the resistance generated by the stirring blades 14 drives the stirring blades 14 to overturn up and down around the rotating seat 16, thereby the raw material is driven to stir up and down, thereby the stirring mechanism 3 can stir and mix the raw material more evenly, and the manufactured slurry has better effect, meanwhile, in the stirring process, the scraper 19 continuously scrapes and washes the inner wall of the working box 1, so that the raw materials adhered to the inner wall of the working box 1 can be effectively reduced.

Preferably, the compensating mechanism 20 includes a fixed block 21 and a moving block 25, wherein the fixed block 21 is fixedly mounted on a side wall of the vertical rod 18, an inner cavity 22 is formed in the fixed block 21, a sliding plate 23 is slidably mounted in the inner cavity 22, a moving block 25 is fixedly mounted on a side wall of the sliding plate 23 away from the vertical rod 18, an end portion of the moving block 25 extends out from the side wall of the inner cavity 22, an extending end of the moving block 25 is fixedly mounted on a side wall of the scraper 19, a compensating spring 24 is fixedly mounted on a side wall of the sliding plate 23 away from the moving block 25, and the other end of the compensating spring 24 is fixedly mounted on a side wall of the inner cavity 22; in the working process of the scraper 19, abrasion is inevitable, after long-time working, the scraper 19 can be separated from the surface of the working box 1, the compensation spring 24 compensates the friction loss at the moment, and the scraper 19 is abutted against the inner wall of the working box 1, so that the scraping effect of the scraper 19 is ensured.

Referring to FIGS. 2-3, it can be seen that: the feeding cylinder 2 is internally provided with a propeller blade 26, the propeller blade 26 is fixedly arranged on the outer wall of a driving shaft 27, the driving shaft 27 is rotatably arranged on the top wall of the feeding cylinder 2, the feeding cylinder 2 is internally and horizontally provided with a partition plate 28, the side wall of the feeding cylinder 2 is obliquely provided with a feeding pipe 29, the feeding pipe 29 is positioned below the partition plate 28, the driving shaft 27 is fixedly provided with a first bevel gear 30 on the outer wall, the first bevel gear 30 is positioned above the partition plate 28, the outer wall of the first bevel gear 30 is engaged with a second bevel gear 31, the second bevel gear 31 is fixedly arranged on the outer wall of the end part of the transmission shaft 27, the transmission shaft 27 extends out from the feeding cylinder 2 and the side wall of the bracket 4, the outer wall of the extending end of the transmission shaft 27 is fixedly provided with a third bevel gear 33, the outer wall of the third bevel gear 33 is also engaged with a fourth bevel gear 34, the fourth bevel gear 34 is fixedly arranged on the outer wall of the screw 12; lead screw 12 rotates the while and drives drive shaft 27 through multiunit bevel gear, it carries out rotary conveying to the raw materials to drive propeller blade 26, because going on of lead screw 12 cycle is just, the reversal, thereby it also goes on just to drive propeller blade 26, the reversal, when propeller blade 26 corotation, raw materials blanking speed is very fast, when propeller blade 26 reversal, the blanking speed of raw materials is slow, thereby the leading-in speed of raw materials has been controlled, avoid the raw materials to lead-in too much, produce the layering phenomenon, and can fully disperse the raw materials through propeller blade 26.

The connecting block 8 is internally provided with an air storage cavity 36, the bottom of the air bag 7 is symmetrically provided with air guide grooves 35, the air guide grooves 35 are communicated with the air storage cavity 36, the bottom of the air storage cavity 36 is provided with a piston 37 in a sliding manner, the bottom wall of the piston 37 is connected with the top wall of the telescopic rod 9, and the telescopic rod 9 drives the piston 37 to move up and down; in the stirring process, it drives telescopic link 9 and carries out the rising motion to open liquid pump 10, drive piston 37 upward movement, thereby with the inside air injection gasbag 7 in the

gas storage chamber

36, 7 surperficial bloies of gasbag will deposit the raw materials jack-up in the bottom of work box 1, close liquid pump 10, gasbag 7 resumes to initial condition, so constantly cycle open liquid pump 10, it carries out cycle heave motion to drive gasbag 7, the continuous raw materials jack-up with the 1 bottom of work box, thereby make the raw materials mix more fully.

Preferably, a shock absorbing pad 38 is fixedly mounted on the bottom wall of the liquid pump 10, and the shock absorbing pad 38 absorbs the shock generated during the operation of the liquid pump 10.

The use method of the battery slurry vacuum preparation equipment comprises the following specific operation steps:

the method comprises the following steps: firstly, connecting a feed pipe 29 with a liquid inlet pipe 6 and an external feed end together, and then injecting plasma raw materials into the working box 1 through the feed pipe 29;

step two: starting the motor 5, periodically reversing to drive the stirring mechanism 3 to stir the raw materials, periodically starting the liquid pump 10 to jack the air bag 7 to fully stir the raw materials in the stirring process;

step three: after the raw materials are stirred, adding a proper solvent through the liquid inlet pipe, starting the motor 5, uniformly stirring, adjusting the concentration of the plasma, and after the processing is finished, opening the discharge valve 11 to discharge the plasma.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention, and the following claims are therefore to be read in this light of the appended claims.

Claims

1. Battery thick liquids vacuum preparation equipment, including work box (1), feed cylinder (2), rabbling mechanism (3) and feed liquor pipe (6), its characterized in that: the stirring mechanism is arranged in the working box (1), the stirring mechanism is connected with the motor (5), the motor (5) is fixedly installed on the top wall of the support (4), the support (4) is fixedly installed on the top wall of the working box (1), the feeding cylinder (2) is fixedly installed on the top wall of the working box (1), the bottom of the feeding cylinder (2) extends into the working box (1), a liquid inlet pipe (6) is fixedly installed on one side, far away from the feeding cylinder (2), of the top wall of the working box (1), the liquid inlet pipe (6) is communicated with an external solvent, the bottom wall of the working box (1) is arranged into a conical shape, a discharge hole is formed in the bottom of the conical shape, a discharge valve (11) is installed at the discharge hole, an annular air bag (7) is fixedly installed in the conical side wall, the surface of the annular air bag (7) extends out of the conical side wall, and the air bag (7) is communicated with the connecting block (8), connecting block (8) are installed on the diapire of work box (1), and connecting block (8) link together with telescopic link (9) simultaneously, and telescopic link (9) fixed mounting is on the roof of liquid pump (10), and install on the bottom surface of working in liquid pump (10).

2. The battery slurry vacuum preparation apparatus of claim 1, wherein: the stirring mechanism (3) comprises a lead screw (12), a rotating shaft (13), stirring blades (14) and a scraper (19), the lead screw (12) is connected to an output shaft of the motor (5) through a coupler, a blind groove (15) is formed in the top of the rotating shaft (13), internal threads are formed in the blind groove (15), the lead screw (12) is installed in the blind groove (15) in a threaded mode, the lead screw (12) and the rotating shaft (13) stretch into the working box (1), meanwhile, a plurality of stirring blades (14) are arranged on the side wall of the rotating shaft (13), the stirring blades (14) are installed at the end of a rotating seat (16) in a rotating mode, the rotating seat (16) is fixedly installed on the side wall of the rotating shaft (13), a pair of cross rods (17) is installed on the side wall of the rotating shaft (13), the cross rods (17) are located above the stirring blades (14), and vertical rods (18) are fixedly installed at the other ends of the cross rods (17), a plurality of groups of compensation mechanisms (20) are fixedly mounted on one side wall of the vertical rod (18) close to the working box (1), a scraper (19) is fixedly mounted at the other end of each compensation mechanism (20), and the scraper (19) is in sliding contact with the inner wall of the working box (1).

3. The battery slurry vacuum preparation apparatus of claim 2, wherein: the feeding cylinder (2) is internally provided with a propeller blade (26), the propeller blade (26) is fixedly installed on the outer wall of a driving shaft (27), the driving shaft (27) is rotatably installed on the top wall of the feeding cylinder (2), a partition plate (28) is horizontally installed inside the feeding cylinder (2), a feeding pipe (29) is installed on the side wall of the feeding cylinder (2) in an inclined mode, the feeding pipe (29) is located below the partition plate (28), a first bevel gear (30) is fixedly installed on the outer wall of the driving shaft (27), the first bevel gear (30) is located above the partition plate (28), a second bevel gear (31) is meshed on the outer wall of the first bevel gear (30), the second bevel gear (31) is fixedly installed on the outer wall of the end portion of a transmission shaft (32), and the transmission shaft (32) extends out of the side walls of the feeding cylinder (2) and the support (4), a third bevel gear (33) is fixedly arranged on the outer wall of the extending end of the transmission shaft (32), wherein a fourth bevel gear (34) is also meshed on the outer wall of the third bevel gear (33), and the fourth bevel gear (34) is fixedly arranged on the outer wall of the screw rod (12).

4. The battery slurry vacuum preparation apparatus of claim 1, wherein: gas storage chamber (36) have been seted up to the inside of connecting block (8) to gas guide groove (35) have been seted up to the bottom symmetry of gasbag (7), and gas guide groove (35) and gas storage chamber (36) communicate together, and the bottom slidable mounting of gas storage chamber (36) has piston (37) simultaneously, and the diapire of piston (37) links together with the roof of telescopic link (9).

5. The battery slurry vacuum preparation apparatus of claim 2, wherein: compensating mechanism (20) include fixed block (21) and movable block (25), wherein fixed block (21) fixed mounting is on the lateral wall of montant (18), and inner chamber (22) have been seted up to the inside of fixed block (21), the inside slidable mounting of inner chamber (22) has slide (23), and slide (23) keep away from on the lateral wall of montant (18) fixed mounting have movable block (25), the tip of movable block (25) stretches out from the lateral wall of inner chamber (22), wherein the end fixed mounting that stretches out of movable block (25) is on the lateral wall of scraper blade (19), slide (23) keep away from on the lateral wall of movable block (25) fixed mounting have compensation spring (24) simultaneously, the other end fixed mounting of compensation spring (24) is on the lateral wall of inner chamber (22).

6. The battery slurry vacuum preparation apparatus of claim 1, wherein: the bottom of the working box (1) is fixedly provided with a plurality of supporting columns.

7. The battery slurry vacuum preparation apparatus of claim 4, wherein: and a damping cushion plate (38) is fixedly arranged on the bottom wall of the liquid pump (10).