A cutter for lithium battery material

Abstract

The utility model discloses a cutter for lithium battery materials, belonging to the technical field of lithium battery processing equipment. The utility model comprises a frame and a driving cylinder arranged on the frame. A cutter assembly is arranged at the output end of the driving cylinder. The cutter assembly comprises a cutter mounting seat and a cutter group vertically mounted on the cutter mounting seat. The cutter group is made of polytetrafluoroethylene material. The cutter group consists of a plurality of transverse cutting blades and a plurality of longitudinal cutting blades, and the transverse cutting blades and the longitudinal cutting blades are vertically connected to each other at equal intervals. The utility model is convenient to operate and has strong practicality. It effectively solves the problems that the existing cutter device for lithium battery material processing has the following problems: firstly, materials are easily attached to the surface of the cutter device during use, the cutting effect is poor, and the surface attachments need to be manually cleaned regularly; secondly, metal impurities are easily mixed into the material after long-term use, thereby affecting the product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing equipment, in particular to a cutter for lithium battery materials. Background Art

[0002] At present, the more mature industrial production process for sintering lithium battery materials is the solid-phase sintering method, which generally includes the steps of mixing, sintering, and crushing. The sintering is carried out using a roller kiln or a pusher kiln to push the sagger filled with materials into the kiln for sintering. In order to increase the contact area between materials and air and ensure product quality, an additional sagger cutting process is generally added in industry, mainly to evenly cut the materials in the sagger, and the automatic reversal of the sagger is conducive to the smooth discharge of the sintered material, which brings convenience to the subsequent process. However, traditional cutters are generally made of stainless steel, and lithium hydroxide, the raw material used for synthesizing lithium-ion positive electrode materials, has a strong alkalinity. Stainless steel cutters have the following problems during use: 1. The cutter is easily corroded during long-term use, shortening its service life; 2. Lithium hydroxide is easy to absorb water and carbon dioxide in the air during long-term use, and the viscosity of the material increases, which makes it easy for the material to adhere to the surface of the cutter, which not only causes poor cutting effect but also directly affects the various indicators of the prepared lithium battery positive electrode material, but also requires manual regular cleaning. 3. Long-term use causes the coating of the stainless steel cutter to gradually wear, and metal impurities are easily mixed into the material, thereby affecting product quality.

[0003] Chinese patent CN207922875U discloses a lithium battery powder block dividing device, including a main frame, the main frame is mounted on a transmission roller, a cylinder is provided on the top of the main frame, a mounting frame connected to the cylinder is provided inside the main frame, and a cutter is connected to the bottom of the mounting frame. Chinese patent CN205415732U discloses a sagger block cutting device for lithium battery positive electrode materials, specifically, including a top cover, a bracket, a cutter bottom plate, a cutter, a half-thread bolt, a torsion spring, a sagger, and a lifting cylinder. However, the existing cutter device used for lithium battery material processing is firstly easy to adhere to materials on its surface during use, and the cutting effect is poor, and the surface attachments need to be manually cleaned regularly. Secondly, long-term use is prone to metal impurities mixing into the material, thereby affecting the product quality. Therefore, it is necessary for this application to provide a cutter for lithium battery materials that is not easy to adhere to materials on the cutter surface and has a good cutting effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems that the existing cutter device used for processing lithium battery materials is easy to adhere to materials during use, the cutting effect is poor, and the surface attachments need to be manually cleaned regularly; secondly, metal impurities are easy to mix into the materials after long-term use, thereby affecting the product quality. The utility model provides a cutter for lithium battery materials that is not easy to adhere to materials on the cutter surface and has a good cutting effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a cutter for lithium battery materials, including a frame and a driving cylinder arranged on the frame, a cutter assembly is provided at the output end of the driving cylinder, the cutter assembly includes a cutter mounting seat and a cutter group vertically installed on the cutter mounting seat, the cutter group is made of polytetrafluoroethylene material, the cutter group is composed of a plurality of transverse cutting blades and a plurality of longitudinal cutting blades, and the transverse cutting blades and the longitudinal cutting blades are vertically connected to each other at equal intervals.

[0006] Furthermore, the transverse cutting blades are arranged on the cutting blade mounting seat at equal intervals, and the longitudinal cutting blades are arranged perpendicular to the transverse cutting blades at equal intervals.

[0007] Furthermore, the lower end of the longitudinal cutting blade is 2-4 cm away from the mounting surface of the cutting blade mounting seat, and the upper end of the transverse cutting blade is 1-3 cm away from the upper end of the longitudinal cutting blade, so that the transverse cutting blade and the longitudinal cutting blade are connected to the cutting blade mounting seat to form an air intake channel.

[0008] Furthermore, the transverse cutting blade and the longitudinal cutting blade are both provided with cutouts in the shape of equilateral triangles.

[0009] Furthermore, the transverse cutting blade and the longitudinal cutting blade are integrally injection-molded using polytetrafluoroethylene material.

[0010] Furthermore, the transverse cutting blade and the longitudinal cutting blade are formed by splicing polytetrafluoroethylene material.

[0011] The utility model provides a cutter for lithium battery materials, which has the following beneficial effects:

[0012] The cutting blade group of the utility model is composed of a plurality of transverse cutting blades and a plurality of longitudinal cutting blades, and the transverse cutting blades and the longitudinal cutting blades are connected to each other vertically at equal intervals, the lower end of the longitudinal cutting blade is 2-4 cm away from the mounting surface of the cutting blade mounting seat, and the upper end of the transverse cutting blade is 1-3 cm away from the upper end of the longitudinal cutting blade, so that the transverse cutting blade and the longitudinal cutting blade are connected to the cutting blade mounting seat to form an air intake channel, which can increase the contact area between the material and the atmosphere. In combination with the cutting blade group being made of polytetrafluoroethylene material, the transverse cutting blade and the longitudinal cutting blade are both provided with an equilateral triangle-shaped incision, which can effectively reduce the adhesion of the material on the blade surface, improve the material cutting effect, and facilitate the subsequent thorough sintering of the material. The utility model is easy to operate and has strong practicality. It effectively solves the problems that the existing cutting blade device used for lithium battery material processing is easy to adhere to the material on its surface during use, the cutting effect is poor, and the surface attachments need to be manually cleaned regularly. Secondly, metal impurities are easily mixed into the material after long-term use, thereby affecting the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1The utility model is a schematic diagram of the structure of a cutter for lithium battery materials.

[0014] Figure 2 The utility model is a schematic diagram of the structure of the cutter assembly of the cutter for lithium battery materials.

[0015] In the figure, 1, frame; 2, driving cylinder; 3, cutter mounting seat; 4, cutter group; 41, transverse cutting blade; 42, longitudinal cutting blade; 5, air intake channel. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is described clearly and completely below in conjunction with the specific embodiments of the utility model. The described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] like Figure 1-2 As shown, the utility model provides a cutter for lithium battery materials, including a frame 1 and a driving cylinder 2 arranged on the frame 1, the frame 1 is also provided with a lifting member for lifting the sagger to a cutting position and a conveying platform for conveying the sagger in the plumb direction of the driving cylinder 2, the output end of the driving cylinder 2 is provided with a cutter assembly for cutting the material in the sagger, the cutter assembly includes a cutter mounting seat 3 and a cutter group 4 vertically mounted on the cutter mounting seat 3, the cutter mounting seat 3 is connected to the output end of the driving cylinder 2 through a connecting seat, and the driving cylinder 2 is also provided with a device for adjusting the driving cylinder 2 lifting and pressing air pipe, the cutting knife group 4 is made of polytetrafluoroethylene material, which can effectively reduce the material adhesion on the knife surface, improve the material cutting effect, and facilitate the subsequent sintering of the material; the cutting knife group 4 is composed of a plurality of transverse cutting blades 41 and a plurality of longitudinal cutting blades 42, and the transverse cutting blades 41 and the longitudinal cutting blades 42 are connected to each other vertically at equal intervals. The cutting knife group 4 of the present application can adjust the number of transverse cutting blades 41 and longitudinal cutting blades 42 according to production needs. The transverse cutting blades 41 and longitudinal cutting blades 42 of the present application are made of polytetrafluoroethylene material and can be integrally injection molded or spliced.

[0019] Example 2

[0020] On the basis of the above embodiment, in order to increase the contact area between the cut material and oxygen and make it easier to discharge the moisture in the material, Figure 2As shown, the transverse cutting blades 41 described in the present application are arranged on the cutting blade mounting seat 3 at equal intervals, and the longitudinal cutting blades 42 are arranged perpendicular to the transverse cutting blades 41 at equal intervals; the lower end of the longitudinal cutting blade 42 is 2-4 cm away from the mounting surface of the cutting blade mounting seat 3, and the upper end of the transverse cutting blade 41 is 1-3 cm away from the upper end of the longitudinal cutting blade 42, so that the transverse cutting blade 41 and the longitudinal cutting blade 42 are connected to the cutting blade mounting seat 3 to form an air inlet channel 5, and the air inlet channel 5 is arranged along the transmission direction of the sagger, and the height of the cutting knife group 4 is higher than the height of the sagger, so that during the cutting process of the cutting knife group 4, the gas can contact the cut material in the sagger through the air inlet channel 5, and the frame 1 of the present application is also provided with a gas for accelerating the flow rate of the gas in the direction of conveying the sagger through the air outlet, thereby further improving the contact between the gas entering the air inlet channel 5 and the material.

[0021] Example 3

[0022] On the basis of the above embodiment, in order to improve the cutting and forming effect, the transverse cutting blade 41 and the longitudinal cutting blade 42 are both provided with cutouts in the shape of equilateral triangles (not shown in the figure).

[0023] The frame 1 of the present application is provided with an operation controller for the operation of a lifting component, a conveying platform, an air outlet and a driving cylinder 2. The present application sets the operation parameters of the lifting component, the conveying platform and the driving cylinder 2 according to actual production needs through the operation controller. The present application transports the sagger to be cut to the bottom of the driving cylinder 2 through the conveying platform, and then lifts the sagger to the cutting position by the lifting component to separate the sagger from the conveying platform, and then drives the cutting knife assembly to descend to the position of the sagger by the driving cylinder 2 to cut the material in the sagger. After the cutting is completed, the driving cylinder 2 drives the cutting knife assembly to reset, and the lifting component descends, so that the sagger reaches the conveying position of the conveying platform and starts to be transported to the next workstation; thereby effectively solving the problems that the existing cutting knife device used for lithium battery material processing is easy to adhere to materials on its surface during use, resulting in poor cutting effect, and it is necessary to manually clean the surface attachments regularly; secondly, it is easy to produce metal impurities mixed in the material after long-term use, thereby affecting product quality.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cutter for lithium battery materials, comprising a frame (1) and a driving cylinder (2) arranged on the frame (1), characterized in that: The output end of the driving cylinder (2) is provided with a cutter assembly, the cutter assembly comprising a cutter mounting seat (3) and a cutter group (4) vertically mounted on the cutter mounting seat (3), the cutter group (4) being made of polytetrafluoroethylene material, the cutter group (4) comprising a plurality of transverse cutting blades (41) and a plurality of longitudinal cutting blades (42), and the transverse cutting blades (41) and the longitudinal cutting blades (42) being vertically connected to each other at equal intervals; the transverse cutting blades (41) and the longitudinal cutting blades (42) are both provided with cutouts in the shape of equilateral triangles; The transverse cutting blades (41) are arranged on the cutting blade mounting seat (3) at equal intervals, and the longitudinal cutting blades (42) are arranged perpendicular to the transverse cutting blade (41) at equal intervals; the lower end of the longitudinal cutting blade (42) is 2-4 cm away from the mounting surface of the cutting blade mounting seat (3), and the upper end of the transverse cutting blade (41) is 1-3 cm away from the upper end of the longitudinal cutting blade (42), so that the transverse cutting blade (41) and the longitudinal cutting blade (42) are connected to the cutting blade mounting seat (3) to form an air intake channel (5).

2. The cutter for lithium battery material according to claim 1, characterized in that: The transverse cutting blade (41) and the longitudinal cutting blade (42) are integrally injection-molded using polytetrafluoroethylene material.

3. The cutter for lithium battery material according to claim 1, characterized in that: The transverse cutting blade (41) and the longitudinal cutting blade (42) are formed by splicing polytetrafluoroethylene material.

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