Paste mixing device for battery production

Abstract

The invention relates to a paste mixing device for battery production, the paste mixing device comprises a stirring barrel and a stirrer arranged on the stirring barrel, the stirring barrel is provided with a first feed port and a paste outlet, the stirring barrel is provided with a plurality of supporting legs, the supporting legs comprise an upper supporting block, a lower supporting block and a plurality of supporting rods, the lower ends of the supporting rods are connected to the lower supporting block, and the stirring barrel is provided with a second feed port and a second feed port. The upper supporting block is connected with a stirring barrel, the upper end of the supporting rod is arranged in the upper supporting block in a penetrating mode, the supporting rod is sleeved with a damping spring, the supporting rod is in threaded connection with a supporting block, and when the upper supporting block is supported by the supporting block, the damping spring is in a free state. And when the upper supporting block is supported by the damping spring, the supporting block and the upper supporting block are disconnected. The invention aims at providing the paste mixing device with the adjustable shock insulation mode for battery production, and the problem that the shock insulation mode of an existing paste mixing device for battery production cannot be adjusted is solved.

Description

Technical Field

[0001] The invention relates to the technical field of battery production, and in particular to a paste mixing device for battery production. Background Art

[0002] In the production of batteries, lead paste is needed to be applied to the relevant parts of the batteries. The production of lead paste is completed by a lead paste device. The existing lead paste device has the following shortcomings: it is not possible to choose seismic isolation or non-seismic isolation according to needs, that is, the seismic isolation mode cannot be adjusted; the powder cannot be evenly sprayed into the mixing barrel; the water volume cannot be accurately controlled, especially the influence of surface water vapor on the quality of the lead paste. Summary of the invention

[0003] The first purpose of the present invention is to provide a paste mixing device for battery production with an adjustable isolation mode, thereby solving the problem that the isolation mode of the existing paste mixing device for battery production is not adjustable.

[0004] The second object of the present invention is to further provide a battery production paste mixing device that can evenly spread powder in a mixing barrel, thereby solving the problem that the existing battery production paste mixing device cannot fully disperse the powder during the feeding process.

[0005] The third object of the present invention is to further provide a battery paste mixing device capable of controlling the moisture content of the gas in the mixing barrel, thereby solving the problem that the surface of the existing battery paste mixing device absorbs other moisture and affects the quality and is uncontrollable.

[0006] The above technical problems are solved by the following technical solutions: A paste mixing device for battery production, comprising a mixing barrel and an agitator arranged on the mixing barrel, the mixing barrel being provided with a first feed port and a paste outlet, and characterized in that the mixing barrel is provided with a plurality of supporting feet, the supporting feet comprising an upper supporting block, a lower supporting block and a plurality of supporting rods whose lower ends are connected to the lower supporting block, the upper supporting block is connected to the mixing barrel, the upper ends of the supporting rods are inserted into the upper supporting block, the supporting rods are sleeved with shock-absorbing springs, the supporting rods are threadedly connected with supporting blocks, the shock-absorbing springs are in a free state when the upper supporting block is supported by the supporting block, and the supporting block is disconnected from the upper supporting block when the upper supporting block is supported by the shock-absorbing springs. When the present invention is used in an environment where seismic isolation is required, the support block is rotated to move downward and lose its support for the mixing barrel. At this time, the mixing barrel is supported by the seismic isolation spring, thereby achieving seismic isolation; when the present invention is used in an environment where seismic isolation is not required, the support block is rotated to move upward to support the mixing barrel. At this time, the mixing barrel is supported by the mechanical energy of the support rod and does not have a seismic isolation effect, but is rigidly connected. Seismic isolation and non-seismic isolation use of the mixing barrel are achieved.

[0007] Preferably, the agitator comprises a stirring shaft rotatably connected to the top wall of the stirring barrel, a stirring member arranged on the stirring shaft, a stirring motor driving the stirring shaft to rotate and a powder conveying pipe inserted in the stirring shaft, an air chamber is formed between the stirring shaft and the powder conveying pipe, the stirring shaft is provided with an air inlet and a plurality of air outlets located below the air inlet, a fan blade is provided on the inner circumferential surface of the stirring shaft, the fan blade is used to drive the air flow to enter the air chamber through the air inlet and blow out from the air outlet when the stirring shaft rotates, a powder input port is provided at the upper end of the powder conveying pipe, and a plurality of powder output pipes are provided at the lower end, the outer end of the air outlet is provided with a conical pipe head with a small outer end and a large inner end, the outer ends of the powder output pipes are inserted in the conical pipe head one by one, and an air outlet space surrounding the outer periphery of the powder output pipe is formed between the outer end of the powder output pipe and the conical pipe head. When in use, the powder is input through the powder input port and then output from the powder output pipe to the air outlet. When the stirring shaft rotates, circulating air is generated and output through the air outlet. The circulating air helps the output of the powder. The formation of circulating air can be generated by selecting the stirring shaft, without the need to design an air source and power mechanism separately.

[0008] Preferably, the powder delivery pipe is sealed and rotatably connected with a connecting sleeve, and an annular discharge groove extending along the circumference of the connecting sleeve is provided on the inner circumferential surface of the connecting sleeve, and the powder delivery pipe is provided with a powder output port aligned with the annular discharge groove, and the powder output pipe is connected to the connecting sleeve and communicated with the annular discharge groove, and the lower end of the connecting sleeve is closed and provided with a connecting column fixed to the bottom wall of the air chamber, and the powder delivery pipe is fixed to the stirring barrel. The stirring shaft is provided with a driven gear, and the driven gear is meshed with the driving gear, and the driving gear is connected to the stirring motor, and the stirring motor is fixed to the stirring barrel, and the upper end of the powder delivery pipe extends out of the stirring shaft and is fixed to the stirring barrel through a connecting frame. When the stirring shaft rotates, the powder delivery pipe can remain stationary, thereby reducing energy consumption.

[0009] Preferably, the lower end of the powder delivery pipe is closed by a bottom wall of the powder delivery pipe, the inner surface of the bottom wall of the powder delivery pipe is an upwardly convex conical surface, and the lowest point of the powder output port is aligned with the lowest point of the bottom wall of the powder delivery pipe, so as to improve the smoothness of powder delivery.

[0010] Preferably, the opening shape of the air outlet is polygonal, the inner periphery of the end face of the air outlet is provided with an annular step extending along the circumference of the air outlet, each side wall of the inner periphery of the air outlet is hinged with a cover plate connected to the annular step and opened outward, and all the cover plates close the air outlet when they are closed, and a box cover spring driving the hole cover to close is provided between the cover plate and the air outlet, and the cover plate opens under the action of the airflow ejected from the air outlet, thereby realizing the automatic closure of the air outlet.

[0011] Preferably, the stirring member comprises an upper horizontal blade and a lower horizontal blade arranged in sequence from top to bottom, the upper horizontal blade is provided with an upper horizontal blade portion cutting edge extending in the extension direction of the upper horizontal blade at both ends of the upper horizontal blade along the circumference of the stirring shaft, the upper horizontal blade is connected to the upper ends of a plurality of upper vertical blades, the upper vertical blades are distributed along the extension direction of the upper horizontal blade, the upper vertical blades are provided with an upper vertical blade portion cutting edge extending in the extension direction of the upper vertical blade at both ends of the upper vertical blade along the circumference of the stirring shaft, the lower horizontal blade is connected to the lower ends of a plurality of lower vertical blades, the lower vertical blades are distributed along the extension direction of the lower horizontal blade, the lower vertical blades are provided with a lower vertical blade portion cutting edge extending in the extension direction of the lower vertical blade at both ends of the lower vertical blade, and the lower end of the upper vertical blade extends downward beyond the upper end of the lower vertical blade. The paste can be crushed while stirring, which can improve the uniformity of the paste.

[0012] Preferably, the upper horizontal blade bar and the lower horizontal blade bar are arranged at intervals along the circumference of the stirring shaft, the lower horizontal blade bar is fixedly connected to the stirring shaft, the stirring shaft is sleeved with an inner gear ring and an outer gear ring, the outer gear ring is coaxially fixed to the stirring shaft, the inner gear ring is meshed with a plurality of intermediate gears, the intermediate gears are meshed with the inner gear ring, the intermediate gears are distributed along the circumference of the inner gear ring, the outer gear ring is suspended in a hanging ring groove arranged on the top wall of the stirring barrel through a hanging rod, the hanging ring groove is coaxial with the outer gear ring, the upper horizontal blade bar is fixed on the outer gear ring, and the upper vertical blade bar and the lower vertical blade bar are staggered along the circumference of the stirring shaft. When the stirring shaft rotates, the upper and lower blade bars are driven to rotate in opposite directions, thereby achieving a good crushing and stirring effect.

[0013] Preferably, the stirring shaft sleeve is provided with an insulation tube, an inner cooling water circulation channel is formed between the insulation tube and the stirring shaft, an inner condensation water connection port is provided at the upper end of the inner cooling water circulation channel, a condensation tube is provided on the insulation tube, the condensation tube is located in the air chamber, an outer cooling water circulation channel is formed between the condensation tube and the insulation tube, an outer condensation water connection port is provided at the upper end of the outer cooling water circulation channel, the lower ends of the inner cooling water circulation channel and the outer cooling water circulation channel are connected through a condensation water connecting hole, a condensation water storage chamber located below the air outlet is provided at the lower end of the air chamber, and the condensation water storage chamber is provided with a drainage hole and a drainage hole cover that can be opened to close the drainage hole. The air in the stirring barrel can be condensed and dried, so as to facilitate the control of the moisture when the paste is generated, and when water needs to be added during the production of the paste, the drainage hole cover is opened and added to the stirring barrel.

[0014] Preferably, the condensate water inner connection port is used for inputting condensate water into the inner channel of the cooling water circulation, and the condensate water outer connection port is used for outputting condensate water from the outer channel of the cooling water circulation. This can ensure that the temperature difference between the airflow and the condensate water at various vertical positions is substantially the same during the process of the airflow passing through the condenser tube, thereby improving the condensation effect.

[0015] Preferably, a scraping sleeve driving structure is further included. The condenser tube is provided with a scraping sleeve for scraping off the condensed water on the condenser tube. The outer peripheral surface of the scraping sleeve is a conical surface with a small upper end and a large lower end. The scraping sleeve driving structure is used to drive the scraping sleeve to rise and fall on the condenser tube. The rising speed of the scraping sleeve is one tenth of the falling speed. Scraping off the condensed water on the condenser tube can make the heat exchange between the airflow and the condenser tube more complete, thereby improving the condensation effect. Scraping from the top is slow and from the bottom is fast, so that the main process of scraping off the condensed water is completed when the scraping sleeve is facing upward. The advantage of scraping off the condensed water upward is that the scraped condensed water will not form accumulation on the condensed water that has not been scraped off, and the accumulation will reduce the heat exchange effect.

[0016] Preferably, the scraper sleeve driving structure comprises a scraper sleeve driving rod with one end connected to the scraper sleeve and a plurality of ascending guide grooves and a plurality of descending guide grooves arranged on the inner circumferential surface of the stirring shaft and arranged at intervals along the circumferential direction of the stirring shaft, wherein the ascending guide grooves and the descending guide grooves are sequentially connected end to end to form a driving annular groove of a broken line structure, and the other end of the scraper sleeve driving rod is inserted into the driving slide groove. The driving of the scraper sleeve to rise and fall is realized by the stirring motor.

[0017] Preferably, the outer end of the drain hole is provided with a tapered section with a larger outer end and a smaller inner end, the tapered surface of the drain hole cover is fitted and inserted into the tapered section, and the drain hole cover is connected to a closing spring that drives the drain hole cover to close the drain hole. When condensed water needs to be drained, the rotation of the stirring shaft is accelerated, and the drain hole cover is opened under the centrifugal effect. The opening and closing of the drain hole cover is conveniently controlled.

[0018] The invention has the following advantages: the seismic isolation mode is adjustable, the powder can fully enter the mixing barrel, and the moisture content of the gas in the mixing barrel can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional schematic diagram of the present invention; Figure 2 for Figure 1 A-A cross-sectional schematic diagram; Figure 3 for Figure 1 A local enlarged schematic diagram of B; Figure 4 for Figure 1 A local enlarged schematic diagram of point C; Figure 5 for Figure 4 A local enlarged schematic diagram of D; Figure 6 for Figure 4 A local enlarged schematic diagram of point E; Figure 7 is a schematic diagram of the expansion of the stirring shaft located at the gas chamber; Figure 8 is a front view schematic diagram of the air outlet; Fig. 9 This is an enlarged schematic diagram of the supporting foot.

[0020] In the figure: mixing barrel 1, first feed inlet 2, support foot 3, upper support block 4, lower support block 5, support rod 6, slide hole 7, shock-absorbing spring 8, support block 9, mixing shaft 10, mixing motor 11, powder conveying pipe 12, air chamber 13, air inlet 14, air outlet 15, fan blade 16, powder input port 17, powder output pipe 18, tapered pipe head 19, air outlet space 20, connecting sleeve 21, annular discharge trough 22, powder output port 23, connecting column 24, driven gear 25, driving gear 26, connecting frame 27, bottom wall of powder conveying pipe 28, annular step 29, hinge shaft 30, cover plate 60, upper cross blade 31, lower cross blade 32, upper cross blade cutting edge 3 3. Upper vertical blade 34, upper vertical blade edge 35, lower horizontal blade edge 36, lower vertical blade 37, lower vertical blade edge 38, inner gear ring 39, outer gear ring 40, intermediate gear 41, suspension rod 42, suspension ring groove 43, insulation tube 61, cooling water circulation inner channel 44, condensate water inner connection port 62, condensate tube 45, cooling water circulation outer channel 46, condensate water outer connection port 47, condensate water connecting hole 48, condensate water storage chamber 49, drain hole 50, drain hole cover 51, tapered section 52, closed-hole spring 53, scraper sleeve drive structure 54, scraper sleeve 55, scraper sleeve drive rod 56, ascending guide groove 57, descending guide groove 58, drive ring groove 59. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 9, a paste mixing device for battery production, comprising a mixing barrel 1 and a stirrer arranged in the mixing barrel. The mixing barrel is provided with a first feed port 2 and a paste outlet. The paste outlet is located at the bottom of the mixing barrel. The mixing barrel is provided with a plurality of supporting feet 3. The supporting feet include an upper supporting block 4, a lower supporting block 5 and a plurality of supporting rods 6 whose lower ends are connected to the lower supporting block. The upper supporting block is connected to the mixing barrel, and the upper ends of the supporting rods are inserted into sliding holes 7 in the upper supporting block, and shock-absorbing springs 8 are sleeved on the supporting rods. The lower end of the shock-absorbing spring is supported on the lower supporting block, and a supporting block 9 is threadedly connected to the supporting rod. When the upper supporting block is supported by the supporting block, the shock-absorbing spring is in a free state, and when the upper supporting block is supported by the shock-absorbing spring, the supporting block is disconnected from the upper supporting block. When the present invention is used in an environment where seismic isolation is required, the supporting block is rotated to move downward and lose its supporting effect on the mixing barrel. At this time, the mixing barrel is supported by the seismic isolation spring, thereby achieving seismic isolation; when the present invention is used in an environment where seismic isolation is not required, the supporting block is rotated to move upward to support the mixing barrel. At this time, the mixing barrel is supported by the mechanical energy of the support rod and does not have a seismic isolation effect, but is rigidly connected.

[0023] The agitator comprises an agitator shaft 10 rotatably connected to the top wall of the agitator barrel, an agitator disposed on the agitator shaft, an agitator motor 11 driving the agitator shaft to rotate, and a powder delivery pipe 12 inserted into the agitator shaft, and an air chamber 13 is formed between the agitator shaft and the powder delivery pipe. An air inlet 14 and a plurality of air outlets 15 located below the air inlet are provided on the agitator shaft, and the air outlets are distributed along the circumference of the agitator shaft. A fan blade 16 is provided on the inner circumference of the agitator shaft, and the fan blade is used to drive the air flow to enter the air chamber through the air inlet when the agitator shaft rotates, and then blow out from the air outlet. A powder input port 17 is provided at the upper end of the powder delivery pipe, and a plurality of powder output pipes 18 are provided at the lower end. A conical pipe head 19 with a small outer end and a large inner end is provided at the outer end of the air outlet, and the outer ends of the powder output pipes are inserted into the conical pipe head one by one. An air outlet space 20 surrounding the outer periphery of the powder output pipe is formed between the outer end of the powder output pipe and the conical pipe head. When in use, the powder is input through the powder input port and then output from the powder output pipe to the air outlet. When the stirring shaft rotates, circulating wind is generated and output through the air outlet. The circulating wind plays a role in assisting the output of the powder. A connecting sleeve 21 is sealed and rotatably connected to the powder delivery pipe. An annular discharge groove 22 extending along the circumference of the connecting sleeve is provided on the inner circumference of the connecting sleeve. The powder delivery pipe is provided with a powder output port 23 aligned with the annular discharge groove. The powder output pipe is connected to the connecting sleeve and communicated with the annular discharge groove. The lower end of the connecting sleeve is closed and provided with a connecting column 24 fixed to the bottom wall of the air chamber. The powder delivery pipe is fixed to the stirring barrel through the connecting column. A driven gear 25 is provided on the stirring shaft. The driven gear is meshed with a driving gear 26. The driving gear is connected to the stirring motor. The stirring motor is fixed to the stirring barrel. The upper end of the powder delivery pipe extends out of the stirring shaft and is fixed to the stirring barrel through a connecting frame 27. The lower end of the powder delivery pipe is closed by a bottom wall 28 of the powder delivery pipe, the inner surface of which is an upwardly convex conical surface, and the lowest point of the powder delivery port is aligned with the lowest point of the bottom wall of the powder delivery pipe.

[0024] The opening shape of the air outlet is polygonal, and the inner peripheral edge of the end face of the air outlet is provided with an annular step 29 extending along the circumference of the air outlet. A cover plate 60 opened outward and connected to the annular step is hingedly connected to each side wall of the inner peripheral surface of the air outlet through a hinge shaft 30. When all the cover plates are closed, the air outlet is closed. A box cover spring for driving the hole cover to close is provided between the cover plate and the air outlet, and the cover plate opens under the action of the airflow ejected from the air outlet.

[0025] The stirring member includes an upper horizontal blade bar 31 and a lower horizontal blade bar 32 which are arranged in sequence from top to bottom. The upper horizontal blade bar is provided with upper horizontal blade bar edges 33 extending in the extension direction of the upper horizontal blade bar at both ends of the upper horizontal blade bar along the circumference of the stirring shaft. The upper horizontal blade bar is connected to the upper ends of a plurality of upper vertical blade bars 34. The upper vertical blade bars are distributed along the extension direction of the upper horizontal blade bar. The upper vertical blade bars are provided with upper vertical blade bar edges 35 extending in the extension direction of the upper vertical blade bars at both ends of the upper vertical blade bars along the circumference of the stirring shaft. The lower horizontal blade bar is provided with lower horizontal blade bar edges 36 extending in the extension direction of the lower horizontal blade bar at both ends of the lower horizontal blade bar along the circumference of the stirring shaft. The lower horizontal blade bar is connected to the lower ends of a plurality of lower vertical blade bars 37. The lower vertical blade bars are distributed along the extension direction of the lower horizontal blade bar. The lower vertical blade bars are provided with lower vertical blade bar edges 38 extending in the extension direction of the lower vertical blade bars at both ends of the lower vertical blade bars along the circumference of the stirring shaft. The lower end of the upper vertical blade bar extends downward beyond the upper end of the lower vertical blade bar. The upper transverse blade bar and the lower transverse blade bar are arranged at intervals along the circumference of the stirring shaft, the lower transverse blade bar is fixedly connected to the stirring shaft, an inner gear ring 39 and an outer gear ring 40 are sleeved on the stirring shaft, the outer gear ring is coaxially fixed to the stirring shaft, the inner gear ring is meshed with a plurality of intermediate gears 41, the intermediate gears are meshed with the inner gear ring, the intermediate gears are distributed along the circumference of the inner gear ring, the outer gear ring is suspended in a suspension ring groove 43 arranged on the top wall of the stirring barrel through a suspension rod 42, the suspension ring groove is coaxial with the outer gear ring, the upper transverse blade bar is fixed on the outer gear ring, and the upper vertical blade bar and the lower vertical blade bar are staggered along the circumference of the stirring shaft.

[0026] The stirring shaft sleeve is provided with an insulation tube 61, and a cooling water circulation inner channel 44 is formed between the insulation tube and the stirring shaft, and a condensation water inner connection port 62 is provided at the upper end of the cooling water circulation inner channel, and a condensation tube 45 is provided on the insulation tube, and the condensation tube is located in the air chamber, and a cooling water circulation outer channel 46 is formed between the condensation tube and the insulation tube, and a condensation water outer connection port 47 is provided at the upper end of the cooling water circulation outer channel, and the lower ends of the cooling water circulation inner channel and the cooling water circulation outer channel are connected through a condensation water connecting hole 48, and a condensation water storage chamber 49 located below the air outlet is provided at the lower end of the air chamber, and the condensation water storage chamber is provided with a drainage hole 50 and a drainage hole cover 51 that can be opened to close the drainage hole. The air in the stirring barrel can be condensed and dried, so as to facilitate the control of other water in the same when the paste is generated to ensure the quality of the paste, and when water needs to be added during the production of the paste, the drainage hole cover is opened and added to the stirring barrel. The outer end of the drain hole is provided with a tapered section 52 with a larger outer end and a smaller inner end. The conical surface of the drain hole cover fits in the tapered section. The drain hole cover is connected to a closing spring 53 that drives the drain hole cover to close the drain hole. When condensed water needs to be discharged, the rotation of the stirring shaft is accelerated, and the drain hole cover is opened under the centrifugal effect.

[0027] When in use, condensed water is input from the condensed water inner connection port and then output from the condensed water outer connection port.

[0028] It also includes a scraper sleeve drive structure 54. A scraper sleeve 55 is provided on the condenser tube to scrape off the condensed water on the condenser tube. The outer peripheral surface of the scraper sleeve is a conical surface with a small upper end and a large lower end, so that the condensed water scraped off by the scraper sleeve when it moves upward will not flow back onto the condenser tube. The scraper sleeve drive structure is used to drive the scraper sleeve to move up and down on the condenser tube, and the rising speed of the scraper sleeve is one tenth of the falling speed. The scraper sleeve drive structure includes a scraper sleeve drive rod 56 connected to the scraper sleeve at one end, and a plurality of ascending guide grooves 57 and a plurality of descending guide grooves 58 arranged on the inner peripheral surface of the stirring shaft and arranged at intervals along the circumference of the stirring shaft. The ascending guide grooves and the descending guide grooves are connected end to end in sequence to form a driving ring groove 59 of a broken line structure, and the other end of the scraper sleeve drive rod is inserted into the driving slide groove.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paste mixing device for battery production, comprising a mixing barrel and a stirrer arranged in the mixing barrel, wherein the mixing barrel is provided with a first feed inlet and a paste outlet, characterized in that: The mixing barrel is provided with a plurality of supporting feet, and the supporting feet include an upper supporting block, a lower supporting block and a plurality of supporting rods whose lower ends are connected to the lower supporting block. The upper supporting block is connected to the mixing barrel, and the upper ends of the supporting rods are inserted into the upper supporting block. A shock-absorbing spring is sleeved on the supporting rod, and a supporting block is threadedly connected to the supporting rod. When the upper supporting block is supported by the supporting block, the shock-absorbing spring is in a free state, and when the upper supporting block is supported by the shock-absorbing spring, the supporting block is disconnected from the upper supporting block.

2. A paste mixing device for battery production according to claim 1, characterized in that: The agitator comprises a stirring shaft rotatably connected to the top wall of the stirring barrel, a stirring member arranged on the stirring shaft, a stirring motor for driving the stirring shaft to rotate, and a powder conveying pipe penetrated in the stirring shaft, an air chamber is formed between the stirring shaft and the powder conveying pipe, an air inlet and a plurality of air outlets located below the air inlet are provided on the stirring shaft, a fan blade is provided on the inner circumferential surface of the stirring shaft, and the fan blade is used to drive the air flow to enter the air chamber through the air inlet and blow out from the air outlet when the stirring shaft rotates, a powder input port is provided at the upper end of the powder conveying pipe, and a plurality of powder output pipes are provided at the lower end, a conical pipe head with a small outer end and a large inner end is provided at the outer end of the air outlet, the outer ends of the powder output pipes are penetrated in the conical pipe head in a one-to-one correspondence, and an air outlet space surrounding the outer periphery of the powder output pipe is formed between the outer end of the powder output pipe and the conical pipe head.

3. A paste mixing device for battery production according to claim 2, characterized in that: The powder delivery pipe is sealed and rotatably connected with a connecting sleeve, and an annular discharge groove extending along the circumference of the connecting sleeve is provided on the inner circumferential surface of the connecting sleeve, and the powder delivery pipe is provided with a powder output port aligned with the annular discharge groove, and the powder output pipe is connected to the connecting sleeve and communicated with the annular discharge groove, and the lower end of the connecting sleeve is closed and provided with a connecting column fixed on the bottom wall of the air chamber, and the powder delivery pipe is fixed to the stirring barrel. The stirring shaft is provided with a driven gear, and the driven gear is meshed with the driving gear, and the driving gear is connected to the stirring motor, and the stirring motor is fixed to the stirring barrel, and the upper end of the powder delivery pipe extends out of the stirring shaft and is fixed to the stirring barrel through a connecting frame.

4. A paste mixing device for battery production according to claim 2 or 3, characterized in that: The opening shape of the air outlet is polygonal, and the inner circumference of the end face of the air outlet is provided with an annular step extending along the circumference of the air outlet. A cover plate opened outward and connected to the annular step is hinged on each side wall of the inner circumference of the air outlet. When all the cover plates are closed, the air outlet is sealed. A box cover spring for driving the hole cover to close is provided between the cover plate and the air outlet, and the cover plate opens under the action of the airflow ejected from the air outlet.

5. A paste mixing device for battery production according to claim 2 or 3, characterized in that: The stirring member includes an upper horizontal knife bar and a lower horizontal knife bar which are arranged in sequence from top to bottom, and the two ends of the upper horizontal knife bar along the circumferential direction of the stirring shaft are provided with upper horizontal knife bar cutting edges extending along the extension direction of the upper horizontal knife bar, the upper horizontal knife bar is connected to the upper ends of a plurality of upper vertical knife bars, and the upper vertical knife bars are distributed along the extension direction of the upper horizontal knife bar, and the two ends of the upper vertical knife bars along the circumferential direction of the stirring shaft are provided with upper vertical knife bar cutting edges extending along the extension direction of the upper vertical knife bar, and the two ends of the lower horizontal knife bar along the circumferential direction of the stirring shaft are provided with lower horizontal knife bar cutting edges extending along the extension direction of the lower horizontal knife bar, the lower horizontal knife bar is connected to the lower ends of the lower vertical knife bars, and the lower vertical knife bars are distributed along the extension direction of the lower horizontal knife bar, and the two ends of the lower vertical knife bars along the circumferential direction of the stirring shaft are provided with lower vertical knife bar cutting edges extending along the extension direction of the lower vertical knife bar, and the lower end of the upper vertical knife bar extends downward beyond the upper end of the lower vertical knife bar.

6. A paste mixing device for battery production according to claim 5, characterized in that: The upper transverse blade bar and the lower transverse blade bar are arranged at intervals along the circumference of the stirring shaft, the lower transverse blade bar is fixedly connected to the stirring shaft, the stirring shaft is sleeved with an inner gear ring and an outer gear ring, the outer gear ring is coaxially fixed to the stirring shaft, the inner gear ring is meshed with a plurality of intermediate gears, the intermediate gears are meshed with the inner gear ring, the intermediate gears are distributed along the circumference of the inner gear ring, the outer gear ring is suspended in a hanging ring groove arranged on the top wall of the stirring barrel by a hanging rod, the hanging ring groove is coaxial with the outer gear ring, the upper transverse blade bar is fixed on the outer gear ring, and the upper vertical blade bar and the lower vertical blade bar are staggered along the circumference of the stirring shaft.

7. A paste mixing device for battery production according to claim 2 or 3, characterized in that: The stirring shaft sleeve is provided with an insulating tube, and an inner cooling water circulation channel is formed between the insulating tube and the stirring shaft, and an inner condensation water connection port is provided at the upper end of the inner cooling water circulation channel. A condenser is provided on the insulating tube, and the condenser is located in the air chamber. An outer cooling water circulation channel is formed between the condenser and the insulating tube, and an outer condensation water connection port is provided at the upper end of the outer cooling water circulation channel. The lower ends of the inner cooling water circulation channel and the outer cooling water circulation channel are connected through a condensation water connecting hole. The lower end of the air chamber is provided with a condensation water storage chamber located below the air outlet, and the condensation water storage chamber is provided with a drainage hole and a drainage hole cover that can be opened to close the drainage hole.

8. A paste mixing device for battery production according to claim 7, characterized in that: The condensed water inner connection port is used for inputting condensed water into the inner channel of the cooling water circulation, and the condensed water outer connection port is used for outputting condensed water from the outer channel of the cooling water circulation.

9. A paste mixing device for battery production according to claim 7, characterized in that: It also includes a scraper sleeve driving structure. The condenser tube is provided with a scraper sleeve for scraping off the condensed water on the condenser tube. The outer peripheral surface of the scraper sleeve is a conical surface with a small upper end and a large lower end. The scraper sleeve driving structure is used to drive the scraper sleeve to rise and fall on the condenser tube. The rising speed of the scraper sleeve is one tenth of the falling speed. Scraping off the condensed water on the condenser tube can make the heat exchange between the airflow and the condenser tube more sufficient, thereby improving the condensation effect.

10. A paste mixing device for battery production according to claim 9, characterized in that: The scraper sleeve driving structure includes a scraper sleeve driving rod with one end connected to the scraper sleeve and a plurality of ascending guide grooves and a plurality of descending guide grooves arranged on the inner circumferential surface of the stirring shaft and arranged at intervals along the circumferential direction of the stirring shaft. The ascending guide grooves and the descending guide grooves are sequentially connected end to end to form a driving ring groove of a broken line structure, and the other end of the scraper sleeve driving rod is inserted into the driving slide groove. The scraper sleeve is driven up and down by the stirring motor.

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