CN219903500U

CN219903500U - Sodium ion battery anode material tabletting equipment

Info

Publication number: CN219903500U
Application number: CN202321700140.0U
Authority: CN
Inventors: 李江; 蔡伟华; 赵建明
Original assignee: Shenzhen Huaxin Material Co ltd
Current assignee: Shenzhen Huaxin Material Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-10-27
Anticipated expiration: 2033-06-30

Abstract

The utility model provides a sodium ion battery positive pole material preforming equipment, including workstation and the cover half that sets up on the workstation, feeding mechanism, push down mechanism and roof pressure mechanism, wherein roof pressure mechanism is located the below of cover half and its roof pressure head upwards stretches into the die cavity of cover half in order to seal the bottom opening of die cavity, feeding mechanism loads the material into the die cavity from the top opening of die cavity and can carry out the strickle processing to the material that loads, push down mechanism is located the top of cover half and its lower pressure head can move down and insert in the die cavity and with roof pressure mechanism coaction with the material of packing in the die cavity press into the slice, and the material of pressing into slice form accessible roof pressure mechanism upwards pushes out the die cavity. The utility model can make the material into a sheet shape at one time, and changes the mode of compacting and slicing the existing equipment, thereby shortening the processing flow, improving the production efficiency, reducing the production cost, ensuring good compacting effect, being beneficial to improving the sintering bowl loading amount and not causing the problem of pouring materials and sticking sagger.

Description

Sodium ion battery anode material tabletting equipment

Technical Field

The utility model relates to the field of forming equipment of sodium ion battery anode materials, in particular to tabletting equipment of sodium ion battery anode materials.

Background

The existing equipment for preparing the sheet-shaped sodium ion battery anode material in the industry is basically realized by adopting a mode of compacting and slicing, so that the following problems exist: 1) The existing equipment is firstly filled with the bowls and then compacted, if the pressure is high, the bowls are damaged, so that the pressure cannot be increased, the compaction effect is poor, and the bowl filling amount is seriously influenced; 2) The material is easily dispersed, the compacting effect is not achieved, the material is easily stuck to the bottom of the sagger after sintering, and the problem of difficult pouring is caused; 3) When slicing, the cutter can stick materials, the slicing gaps are blocked by the carried materials, oxygen required by sintering cannot be provided, the sintering effect is poor, and the problem of incomplete sintering is caused, so that the quality of the whole batch of materials is not up to standard, and the investment is high and the productivity is low.

Disclosure of Invention

Aiming at the problems and the defects, the utility model provides the sodium ion battery anode material tabletting equipment which shortens the processing flow, has good compacting effect, effectively reduces the production cost and improves the production efficiency.

The technical scheme of the utility model is realized as follows:

the utility model relates to sodium ion battery anode material tabletting equipment, which is characterized in that: the automatic feeding device comprises a workbench, a fixed die arranged on the workbench, a feeding mechanism, a pressing mechanism and a pressing mechanism, wherein the pressing mechanism is arranged below the fixed die, a pressing head of the pressing mechanism extends upwards into a die cavity of the fixed die to close a bottom opening of the die cavity, the feeding mechanism is used for filling materials into the die cavity from the top opening of the die cavity and can carry out strickling treatment on the filled materials, the pressing mechanism is arranged above the fixed die, the pressing head of the pressing mechanism can move downwards to be inserted into the die cavity to act together with the pressing mechanism so as to press the materials filled in the die cavity into sheets, and the pressing mechanism can be used for upwards pushing out the die cavity.

In order to prevent foreign matters from being introduced into materials or metal particles from exceeding the standard, the parts of the die cavity, the lower pressure head and the top pressure head, which are used for being contacted with the materials, are made of stainless steel or are provided with wear-resistant coatings.

In order to prevent material overflow and waste during tabletting caused by overlarge gaps, the compaction effect is poor, and dust emission is obvious; or the gap is too small, so that friction is generated during tabletting, metal particles are introduced, the service life of the die is reduced, and a single-side gap of 0.2mm is preset between the outer wall of the lower pressing head and the inner wall of the die cavity.

In order to further improve production efficiency, a plurality of die cavities which are vertically penetrated are arranged on the fixed die at intervals, and the number of the lower pressing heads and the number of the top pressing heads are the same as that of the die cavities and are arranged in a one-to-one correspondence manner.

In order to enable the mould to be customized according to the sintering effect of the sheet material, the sheet material pressed into the sheet material can be square, round, gear-shaped or honeycomb-shaped sheet material.

For the packing and the strickle processing of being convenient for material, feeding mechanism is including installing the horizontal driving piece on the workstation and driving the hopper that makes horizontal reciprocating motion through horizontal driving piece, and the material gets into, the bottom is discharged from the top of hopper, the bottom laminating of hopper is linked together with the die cavity when removing to the mesa of cover half place on the mesa of workstation, just the strickle processing of material is realized to the hopper when resetting.

In order to make the movement of the hopper stable, the use is reliable, the workbench is provided with a guide rail, and the hopper is slidably connected to the guide rail.

In order to ensure that the structure of the pushing mechanism is reliable, the pushing mechanism is stable to use, the pushing mechanism comprises a pushing driving piece and a pushing head which moves up and down in a reciprocating manner through the pushing driving piece, the pushing head is slidably connected to a guide frame arranged at the working table through a mounting plate, and the pushing driving piece is mounted at the top of the guide frame and is fixedly connected with the mounting plate.

In order to make the simple structure of roof pressure mechanism, use reliably, roof pressure mechanism includes roof pressure driving piece and takes the action up-and-down reciprocating motion's roof pressure head through roof pressure driving piece, roof pressure head fixed setting is on a connecting plate, roof pressure driving piece installs in the bottom of workstation and with connecting plate fastening connection.

In order to facilitate the realization of full-automatic operation and further reduce the production cost, the utility model also comprises a feeding mechanism and a bowl loading mechanism, wherein the feeding mechanism is used for inputting materials into the feeding mechanism, and the bowl loading mechanism is used for loading the pressed flaky materials into a sagger.

In order to solve the problem of dust emission in the tabletting process and ensure that the production environment meets the requirement of environmental protection, the utility model also comprises a dust removing mechanism.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the fixed die, the pressing mechanism and the pressing mechanism are adopted to form the pressing structure, so that the material can be directly made into a sheet shape at one time without slicing operation, the mode that the existing equipment is compacted and then sliced is changed, the processing flow is shortened, the production efficiency is improved, the production cost is reduced, a good compacting effect is ensured, the sintering bowl loading amount is improved, and the problem of pouring and sticking a sagger is avoided;

2. the reasonable gap is preset between the outer wall of the lower pressure head and the inner wall of the die cavity, so that the problems of material overflow and waste, poor compaction effect and obvious dust emission are avoided when the die is pressed into a sheet; friction is not generated, and the influence on the service life of the die and the product quality caused by the introduction of metal particles is avoided; in the utility model, the contact parts of the fixed die, the lower pressure head and the top pressure head and the material can be made of stainless steel or provided with a wear-resistant coating, so that the problem that foreign matters are introduced into the material or metal particles exceed the standard is further avoided, and the quality of the sheet-shaped material is better ensured;

3. the die shape of the utility model can be customized according to the sintering effect of the flaky materials, such as square, round, gear shape, honeycomb shape and the like, so that different use requirements can be conveniently met, and the die is convenient to assemble, disassemble and replace, thereby effectively improving the flexibility of equipment use;

4. the automatic feeding, automatic strickling, automatic tabletting, automatic stripping and automatic sagger loading can be realized, and the automatic degree is high, so that the production efficiency is further improved, and the production cost is reduced;

5. the utility model can adjust the use parameters, not only can realize the switching among different materials and ensure that the application range of the equipment is wide, but also can adjust according to the compression ratio of the materials, so that the compaction effect is better;

6. the utility model can also add a dust removing mechanism, thereby solving the problem of dust generated in the tabletting process and enabling the production environment to meet the requirement of environmental protection.

The utility model is further described below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a front cross-sectional structure of the present utility model.

Fig. 2 is a schematic side sectional structure of the present utility model.

Detailed Description

As shown in fig. 1-2, the sodium ion battery anode material tabletting equipment provided by the utility model comprises a workbench 1, and a fixed die 2, a feeding mechanism 3, a pressing mechanism 4 and a jacking mechanism 5 which are arranged on the workbench 1. In order to realize full automation of the operation, a feeding mechanism and a bowl loading mechanism are further provided, wherein the feeding mechanism is installed beside the workbench 1, and a discharge hole of the feeding mechanism is positioned at the initial position of the hopper 32 of the feeding mechanism 3, so that materials can be input into the hopper 32 of the feeding mechanism 3, in the embodiment, the feeding mechanism adopts the prior art, such as the existing conveyor belt structure or the conveying pipe structure, so long as the conveying of the materials can be realized, and therefore, the structure is not described in detail herein, but is easy to understand for a person skilled in the art; the bowl loading mechanism is installed beside the working table 1 and near the position of the fixed mold 2, and is used for loading the sagger with the pressed flaky material, in this embodiment, the bowl loading mechanism adopts the prior art, such as the existing manipulator structure, etc., so long as the sagger loading of flaky material can be realized, so the structure is not described in detail herein, but is easy to understand for the person skilled in the art. In order to prevent dust generated during tabletting from polluting the environment, a dust removing mechanism is further arranged beside the workbench 1, so that dust generated during tabletting is sucked through the dust removing mechanism, and in the embodiment, the dust removing mechanism adopts the prior art, for example, a structure of connecting a vacuum pump with a dust collecting pipeline is adopted.

The fixed die 2 can be fixed on the workbench 1 through bracket installation or directly fixed on the workbench 1 through bolts, and a die cavity 21 of the fixed die 2 is vertically communicated. In order to further improve the production efficiency, a plurality of mold cavities 21 penetrating up and down are arranged on the fixed mold 2 at intervals, and at this time, the number of the lower pressing heads 41 of the pressing mechanism 4 and the number of the pressing heads 51 of the pressing mechanism 5 are the same as the number of the mold cavities 21 and are arranged in a one-to-one correspondence manner, that is, each mold cavity 21 is provided with one lower pressing head 41 and one pressing head 51 in a corresponding manner. In order to prevent foreign matter from being introduced into the material or metal particles from exceeding the standard, the contact portion of the cavity 21 with the material is made of stainless steel or is provided with a wear-resistant coating, which is a conventional technology, such as a wear-resistant ceramic layer. In this embodiment, the workbench 1 is provided with an opening, the upper part of the fixed mold 2 is placed in the opening in a transition fit manner, and the top surface of the fixed mold 2 is flush with the table top of the workbench 1, at this time, the bottom of the hopper of the feeding mechanism 3 is attached to the table top of the workbench 1, so that when the hopper 32 moves to the position of the fixed mold 2, the bottom opening of the hopper is directly communicated with the mold cavity 21 of the fixed mold 2, and the material automatically falls into the mold cavity 21 to fill the material. In addition, the fixed die 2 can be arranged at the bottom of the workbench 1, the top surface of the fixed die 2 is attached to the bottom surface of the workbench 1, and at the moment, an opening communicated with the die cavity 21 is arranged at the position of the workbench 1 corresponding to the die cavity 21, so that when the hopper 32 moves to the position of the fixed die 2, materials can automatically fall into the die cavity 21 through the opening.

The pressing mechanism 5 is located below the fixed die 2, and the pressing head 51 of the pressing mechanism extends upwards into the die cavity 21 of the fixed die 2 to close the bottom opening of the die cavity 21, so that materials can be effectively filled in the die cavity 21, and the purpose of realizing different tabletting thicknesses can be achieved by adjusting the height of the pressing head 51 located in the die cavity 21. In the present embodiment, the pressing mechanism 5 includes a pressing driving member 52 and a pressing head 51 that reciprocates up and down by the action of the pressing driving member 52, wherein the pressing head 51 is fixedly disposed on a connecting plate 53 by bolts, and the pressing driving member 52 is mounted at the bottom of the table 1 and is connected to the connecting plate 53 by bolt fastening. Specifically, the pressing driving member 52 is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is vertically fixed below the workbench 1, a piston rod of the hydraulic cylinder faces upwards and is fixedly connected with the bottom surface of the connecting plate 53, and the piston rod drives the connecting plate 53 to move up and down to drive the pressing head 51 on the top surface of the connecting plate 53 to reciprocate up and down. After the material is pressed into a sheet form, the ejection head 51 is driven up by the piston rod to push out the sheet material from the top opening of the die cavity 21, thereby completing the ejection operation. In addition, the pressing driving member 52 may be other driving members, such as a cylinder, a rack and pinion, a worm and gear, etc., to move the pressing head 51 up and down, but the pressing head 51 will not be disconnected from the mold cavity 21 all the time when moving downward. When the top pressing head 51 is provided in plurality, the top pressing heads 51 are provided on the top surface of the connection plate 53 at intervals. In order to prevent foreign matters from being introduced into the material or metal particles from exceeding the standard, the contact part of the top pressure head 51 and the material is made of stainless steel or is provided with a wear-resistant coating, and the wear-resistant coating is prepared by adopting the prior art, such as a wear-resistant ceramic layer and the like. In addition, the ejection head 51 may be formed by an ejection rod and an ejection head integrally formed or fixed to the upper end of the ejection rod by bolting, and the cross-sectional width of the ejection head is slightly larger than that of the ejection rod at this time, and when the structure is adopted, the bottom opening of the cavity 21 is closed by the ejection head.

The pressing mechanism 4 is located above the fixed mold 2 and the pressing head 41 is inserted into the mold cavity 21 to cooperate with the pressing mechanism 5 so as to press the material filled in the mold cavity 21 into a sheet shape, and the material pressed into the sheet shape is ejected upward from the mold cavity 21 by the pressing head 51 of the pressing mechanism 5. In the present embodiment, the pressing mechanism 4 includes a pressing driving member 42 and a pressing head 41 reciprocally moved up and down by the pressing driving member 42, wherein the pressing head 41 is slidably connected to a guide frame 7 provided at the table 1 through a mounting plate 43, and the pressing driving member 42 is mounted on top of the guide frame 7 and is fixedly connected to the mounting plate 43. Specifically, the lower pressing head 41 is fixed on the bottom surface of the mounting plate 43 through bolts, and a plurality of through holes are formed in the mounting plate 43, the guide frame 7 is composed of an upper transverse frame, a lower transverse frame and a plurality of guide posts arranged between the upper transverse frame and the lower transverse frame, and the number of the guide posts is the same as that of the through holes in the mounting plate 43 and is arranged in a one-to-one correspondence manner, so that the mounting plate 43 is slidably connected to the guide frame 7 through the connection of the through holes and the guide posts. The lower cross frame is fixed on the workbench 1 through bolt installation, the lower pressing driving piece 42 is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is vertically fixed at the middle position of the upper cross frame, the piston rod of the hydraulic cylinder is downwards connected with the top surface of the mounting plate 43 in a fastening way, in the embodiment, the top surface of the mounting plate 43 is provided with a clamping joint, and the mounting plate 43 is fixedly connected with the piston rod in a clamping way through the clamping joint, so that the lower pressing head 41 is convenient to assemble, disassemble and replace. In addition, the pressing driving member 42 may be other driving members, such as a cylinder, a rack and pinion, a worm and gear, etc., to move the pressing head 41 up and down. When the lower ram 41 is provided in plurality, the lower ram 41 is provided on the bottom surface of the mounting plate 43 at intervals. Meanwhile, a single-side gap of 0.2mm is preset between the outer wall of the lower pressure head 41 and the inner wall of the die cavity 21, and then the double-side gap is 0.4mm, so that the purpose of the design is to prevent the problems of material overflow and waste during tabletting caused by overlarge gap, poor compaction effect and obvious dust emission; or too small gap causes friction during tabletting to introduce metal particles, and the service life of the die is reduced. In order to further achieve the purpose of preventing foreign matters from being introduced into the material or metal particles from exceeding the standard, the contact part of the lower pressure head 41 and the material is made of stainless steel or is provided with a wear-resistant coating, and the wear-resistant coating is prepared by adopting the prior art, such as a wear-resistant ceramic layer and the like. In addition, the lower pressure head 41 may be formed by a lower pressure rod and a pressure head integrally formed or fixed at the bottom end of the lower pressure rod by bolting, and the cross-sectional width of the pressure head is slightly larger than that of the lower pressure rod at this time, and when the structure is adopted, a single-side gap of 0.2mm is preset between the outer wall of the pressure head and the inner wall of the die cavity 21.

The feeding mechanism 3 is used for filling materials into the die cavity 21 from the top opening of the die cavity 21 and can carry out scraping treatment on the filled materials, in the embodiment, the feeding mechanism 3 comprises a transverse driving piece 31 arranged on the workbench 1 and a hopper 32 driven by the transverse driving piece 31 to horizontally reciprocate, the materials enter from the top of the hopper 32 and are discharged from the bottom, at the moment, the bottom of the hopper 32 is attached to the table top of the workbench 1 and is communicated with the die cavity 21 when moving to the position of the fixed die 2, when the hopper 32 is reset, the scraping treatment on the materials can be realized, and when the next material filling is carried out, the hopper 32 moving to the position of the fixed die 2 pushes the sheet-shaped materials made in the previous time out of the position of the fixed die 2, so that the bowl filling mechanism carries out bowl filling operation. Specifically, the lateral driving member 31 is a hydraulic cylinder whose cylinder body is laterally mounted and fixed on the table 1 by a bracket, and whose piston rod is fixedly connected to the hopper 32 by a bolt toward the side of the stationary mold 2. In addition, other driving members, such as a cylinder, a rack and pinion, a worm gear, or a screw, may be used for the lateral driving member 31 to implement the horizontal reciprocating movement of the hopper 32. As shown in fig. 1, in order to make it easier for the person skilled in the art to understand the principle of use of the hopper 32, the hopper 32 is shown in two states, an initial position and a filler position, wherein the hopper 32 is shown in broken line to be in the initial position (i.e., right position in the drawing), and the filler position of the hopper 32 is located directly below the lower ram 41 (i.e., left position in the drawing). In order to smooth the movement of the hopper 32, a guide rail 6 is provided on the table 1, and the hopper 32 is slidably connected to the guide rail 6.

The material is sodium ion battery positive electrode material, so the device is used for preparing sodium ion battery positive electrode material tablets, and the material pressed into the tablet by the device can be square, round, gear-shaped, honeycomb-shaped or other geometric tablet materials. That is, the shape of the mold composed of the fixed mold 2, the lower pressing head 41 and the pressing head 51 can be correspondingly set according to the shape of the sheet material to be molded, so that the mold can be customized according to the sintering effect required by the sheet material, and the flexibility of the device in use is improved. In addition, the tabletting parameters and the like of the equipment can be adjusted according to actual needs, so that the switching among different materials can be realized, the application range of the equipment is wide, the compression ratio of the materials can be adjusted, and the compaction effect is better.

The working principle of the utility model is as follows:

firstly, cleaning a hopper, a die cavity, a lower pressure head, a top pressure head, a workbench surface and the like of the equipment, so as to avoid material pollution; then the material to be pressed into sheets is added into a hopper, the material can be used as a closed structure in the batch production process, the hopper is connected with a discharge hole of a feeding mechanism, and the material is automatically added; starting equipment, adjusting pressure (generally meeting 15-20 Mpa) according to material characteristics, adjusting the pressing size, pressure maintaining time and the like of a die according to material compression ratio characteristics, and then starting a lower pressing head to move downwards to be inserted into a die cavity so as to realize tabletting operation; after tabletting is completed, the lower pressing head is lifted, the pressing mechanism is started at the same time, and the flaky materials are ejected upwards from the die cavity through the pressing head of the pressing mechanism; and then taking out the flaky materials, and placing the flaky materials into a sagger for sintering.

The present utility model is illustrated by way of example and not limitation, and other variations to the disclosed embodiments, as would be readily apparent to one skilled in the art, are intended to be within the scope of the utility model as defined in the claims.

Claims

1. The utility model provides a sodium ion battery positive pole material preforming equipment which characterized in that: the automatic feeding device comprises a workbench (1) and a fixed die (2), a feeding mechanism (3), a pressing mechanism (4) and a pressing mechanism (5) which are arranged on the workbench (1), wherein the pressing mechanism (5) is arranged below the fixed die (2) and the pressing head (51) thereof stretches into a die cavity (21) of the fixed die (2) upwards to seal the bottom opening of the die cavity (21), the feeding mechanism (3) is used for filling materials into the die cavity (21) from the top opening of the die cavity (21) and can carry out scraping treatment on the filled materials, the pressing mechanism (4) is arranged above the fixed die (2) and can move downwards to be inserted into the die cavity (21) to act together with the pressing mechanism (5) so as to press the materials filled in the die cavity (21) into sheets, and the pressing mechanism (5) can be used for ejecting the die cavity (21) upwards.

2. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: the parts of the die cavity (21), the lower pressing head (41) and the pressing head (51) used for being contacted with the materials are made of stainless steel or are provided with wear-resistant coatings.

3. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: a single-side gap of 0.2mm is preset between the outer wall of the lower pressure head (41) and the inner wall of the die cavity (21).

4. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: a plurality of through die cavities (21) are arranged on the fixed die (2) at intervals, and the number of the lower pressing heads (41) and the number of the top pressing heads (51) are the same as the number of the die cavities (21) and are arranged in a one-to-one correspondence mode.

5. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: the pressed sheet-like material can be square, round, gear-shaped or honeycomb-shaped sheet-like material.

6. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: the feeding mechanism (3) comprises a transverse driving piece (31) arranged on the workbench (1) and a hopper (32) driven by the transverse driving piece (31) to horizontally reciprocate, materials enter from the top of the hopper (32) and are discharged from the bottom of the hopper (32), the bottom of the hopper (32) is attached to the table top of the workbench (1) and is communicated with the die cavity (21) when moving to the position of the fixed die (2), and the hopper (32) achieves scraping treatment of the materials when resetting.

7. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: the pressing mechanism (4) comprises a pressing driving piece (42) and a pressing head (41) which moves up and down in a reciprocating mode through the pressing driving piece (42), the pressing head (41) is slidably connected to a guide frame (7) arranged at the position of the workbench (1) through a mounting plate (43), and the pressing driving piece (42) is mounted at the top of the guide frame (7) and is fixedly connected with the mounting plate (43).

8. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: the jacking mechanism (5) comprises a jacking driving piece (52) and a jacking head (51) which moves up and down in a reciprocating mode through the action of the jacking driving piece (52), the jacking head (51) is fixedly arranged on a connecting plate (53), and the jacking driving piece (52) is arranged at the bottom of the workbench (1) and is fixedly connected with the connecting plate (53).

9. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: the feeding mechanism is used for inputting materials into the feeding mechanism (3), and the bowl loading mechanism is used for loading the pressed flaky materials into a sagger.

10. The sodium ion battery positive electrode material sheeting apparatus of claim 1, wherein: also comprises a dust removing mechanism.