Rotary shearing device for lithium metal

Abstract

The utility model discloses a rotary shearing device of metal lithium belongs to metal calendering processing technical field, and it includes the multiple material guiding holes of annular distribution of mould setting, the cutting knife mechanism is coaxial and is close to mould, is used for the shearing of the metal lithium of being led out material guiding hole, and the top of mould is provided with multiple, multiple notches and multiple material guiding holes along the rotation path of cutting knife mechanism alternate arrangement, and the notch is used for reducing the contact time of cutting knife mechanism and extrusion interface. The utility model discloses the setting of sector groove can reduce the contact time of cutting knife and extrusion interface, reduces the heat of friction.

Description

Technical Field

[0001] This utility model belongs to the field of metal rolling processing technology, and specifically relates to a rotary shearing device for lithium metal. Background Technology

[0002] Lithium metal is a silvery-white, soft metal, often referred to as "industrial MSG," and is a key metallic material in the high-tech development of the 21st century. Lithium metal is often prepared into various shapes such as lithium rods, bars, sheets, and irregular shapes, and is widely used in chemical, pharmaceutical, petrochemical, rubber, and machinery manufacturing industries. For example, it can react with liquid ammonia to form lithium amino, a strong reducing agent in organic reactions and a cross-linking agent in organic synthesis, used in the synthesis of vitamins, antibiotics, fragrances, resins, and dyes. It is also an important catalyst in many pharmaceutical synthesis reactions, characterized by high catalytic efficiency and few byproducts, and its market prospects are broad.

[0003] Currently, the industrial production of lithium metal in various shapes mostly employs direct extrusion. Existing extrusion and shearing devices (such as patent authorization announcement number: CN223043740U) use a blade with sharpened ends that rotates in continuous close contact with the mold. During the extrusion and shearing process, material easily gets trapped in the groove in the center of the mold, affecting rotation. Furthermore, the blade back's contact with the mold surface can easily hinder lithium metal extrusion, leading to mold blockage. The continuous close contact between the blade and the mold can cause blade wear and increased contact surface temperature, resulting in lithium metal sticking to the blade, leading to secondary shearing and product adhesion. This increases the production cost of lithium metal granules and reduces the yield and quality of the granules. Utility Model Content

[0004] In view of this, the present invention provides a rotary shearing device for metallic lithium to solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rotary shearing device for lithium metal includes: The mold has multiple guide holes arranged in a ring. A cutting mechanism is coaxially attached to the mold and is used to shear the lithium metal that is led out of the feed hole. The top of the mold is provided with multiple notches, which are arranged alternately with the feed holes along the rotation path of the cutting mechanism. The notches are used to reduce the contact time between the cutting mechanism and the extrusion interface.

[0006] Furthermore, the notch is a fan-shaped groove.

[0007] Furthermore, a circular plate is provided at the center of the top of the mold.

[0008] Furthermore, the cutting mechanism includes: A connecting plate is located at the end of the circular plate away from the mold and is coaxially and tightly attached to the circular plate; The cutter is fixedly connected to the connecting plate, and the cutting edge of the cutter is in close contact with the guide hole outlet plane of the mold.

[0009] Furthermore, there are two cutters, which are centrally and symmetrically installed at both ends of the connecting plate, and the blades of the two cutters face opposite directions.

[0010] Furthermore, the cutting edge of the cutter is a hook-shaped cutting edge.

[0011] Furthermore, a second fixing hole is provided at the center of the connecting plate, and the second fixing hole is fixedly installed on the motor shaft by bolts.

[0012] Furthermore, a mold base is provided at the bottom of the mold, and a mold base plate is provided at the bottom of the mold base. The mold base plate is provided with a plurality of mold holes corresponding to the material guide holes, and the mold holes communicate with the corresponding material guide holes. The mold base plate is provided with a plurality of first fixing holes, and the mold base plate is fixedly installed on the bottom of the mold base by bolts through the first fixing holes.

[0013] The beneficial effects of this utility model are: In this invention, when lithium metal is extruded through a die in an extrusion device, the lithium metal is guided to the outlet through a guide hole. The cutting mechanism then rotates and shears the lithium metal. After shearing, the blade surface is covered with lithium metal. The hook-shaped blade reduces the contact area between the cutter and the extrusion interface, preventing die blockage. The fan-shaped groove reduces the contact time between the cutter and the extrusion interface, reducing frictional heat generation and slowing down the temperature rise of the cutting mechanism, preventing lithium metal from discoloring due to high temperatures, and improving lithium adhesion. After rotating and shearing the lithium metal, the lithium metal will fall off under centrifugal force. The central circular plate and the cutter connecting plate are coaxial and tightly attached, preventing lithium metal from falling into the central area and affecting shearing, and also preventing secondary shearing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the mold of this utility model. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of the cutting mechanism of this utility model. Figure 1 ; Figure 3 This is a three-dimensional structural diagram of the mold of this utility model. Figure 2 ; Figure 4 This is a three-dimensional structural diagram of the cutting mechanism of this utility model. Figure 2 ; Figure 5 This is a top view of the mold of this utility model; Figure 6 This is a top view of the cutting mechanism of this utility model; Figure 7 This is the front view of the cutting mechanism of this utility model.

[0015] In the diagram: 10. Mold; 11. Guide hole; 12. Sector groove; 13. Circular plate; 14. Mold base; 15. Mold bottom plate; 16. Mold hole; 17. First fixing hole; 21. Connecting plate; 22. Cutting blade; 23. Hook-shaped blade; 24. Second fixing hole. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Example 1

[0018] refer to Figures 1 to 7 A rotary shearing device for lithium metal, comprising: The mold 10 is provided with a plurality of guide holes 11 arranged in a ring; The cutter 22 mechanism is coaxially attached to the mold 10 and is used to shear the lithium metal that is led out of the guide hole 11. The top of the mold 10 is provided with multiple notches, which are arranged alternately with the guide holes 11 along the rotation path of the cutter 22 mechanism. The notches are used to reduce the contact time between the cutter 22 mechanism and the extrusion interface.

[0019] In this embodiment, the notch is a fan-shaped groove 12.

[0020] In this embodiment, a circular plate 13 is provided at the center of the top of the mold 10.

[0021] In this embodiment, the cutter 22 mechanism includes: Connecting plate 21 is located at the end of circular plate 13 away from mold 10 and is coaxially and tightly attached to circular plate 13; The cutter 22 is fixedly connected to the connecting plate 21, and the blade of the cutter 22 is in close contact with the outlet plane of the guide hole 11 of the mold 10.

[0022] In this embodiment, there are two cutters 22, which are centrally and symmetrically installed at both ends of the connecting plate 21, and the blades of the two cutters 22 face opposite directions.

[0023] In this embodiment, the cutting edge of the cutter 22 is a hook-shaped cutting edge 23.

[0024] In this embodiment, a second fixing hole 24 is provided at the center of the connecting plate 21, and the second fixing hole 24 is fixedly installed on the motor shaft by bolts.

[0025] In this embodiment, a mold base 14 is provided at the bottom of the mold 10, and a mold base plate 15 is provided at the bottom of the mold base 14. The mold base plate 15 is provided with a plurality of mold holes 16 corresponding to the guide holes 11, and the mold holes 16 communicate with the corresponding guide holes 11. The mold base plate 15 is provided with a plurality of first fixing holes 17, and the mold base plate 15 is fixedly installed on the bottom of the mold base 14 by bolts through the first fixing holes 17.

[0026] In practice, the entire mold is fixedly installed in the cavity of the extrusion equipment, and the mold base 15 is in close contact with the lithium metal.

[0027] When cutting lithium metal, the extrusion equipment squeezes the lithium metal into the die hole 16 for processing and then squeezes it into the guide hole 11. The cutting mechanism rotates on the plane of the guide hole 11 outlet along with the motor shaft to cut the lithium metal that is led out of the guide hole 11. After the cutting mechanism rotates to the fan-shaped groove 12, it can reduce the friction area, improve the lithium adhesion, slow down the temperature rise of the cutting tool, and prevent the lithium metal from discoloring due to high temperature.

[0028] In a preferred embodiment, a circular plate 13 is provided at the top center of the mold 10, and the connecting plate 21 is coaxially and tightly attached to the circular plate 13 to prevent lithium metal from falling into the central area and affecting the shearing, while also avoiding secondary shearing.

[0029] In a preferred embodiment, the cutting mechanism includes a connecting plate 21 and cutters 22. The cutters 22 are fixedly mounted at both ends of the connecting plate 21, with their hook-shaped blades 23 facing opposite directions. A second fixing hole 24 is provided at the center of the connecting plate 21, and the second fixing hole 24 is fixedly mounted on the motor shaft by bolts. When cutting lithium metal, the connecting plate 21 rotates coaxially on the surface of the circular plate 13, causing the cutters 22 at both ends to rotate. Because the hook-shaped blades 23 of the two cutters 22 face opposite directions, they can continuously cut the lithium metal drawn from the feed hole 11. After cutting, the back of the hook-shaped blades 23 will not affect the subsequent extrusion of the lithium metal.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model are included within the protection scope of this utility model.

Claims

1. A rotary shearing device for lithium metal, characterized by, include: The mold has multiple guide holes arranged in a ring. A cutting mechanism is coaxially attached to the mold and is used to shear the lithium metal that is led out of the feed hole. The top of the mold is provided with multiple notches, which are arranged alternately with the feed holes along the rotation path of the cutting mechanism. The notches are used to reduce the contact time between the cutting mechanism and the extrusion interface.

2. The rotating shear device for lithium metal of claim 1, wherein, The notch is a fan-shaped groove.

3. The rotating shear device for lithium metal of claim 1, wherein, A circular plate is provided at the center of the top of the mold.

4. The rotating shear device for lithium metal of claim 3, wherein, The cutting mechanism includes: A connecting plate is located at the end of the circular plate away from the mold and is coaxially and tightly attached to the circular plate; The cutter is fixedly connected to the connecting plate, and the cutting edge of the cutter is in close contact with the guide hole outlet plane of the mold.

5. The rotating shear device for lithium metal of claim 4, wherein, The number of cutters is two, and they are centrally and symmetrically installed at both ends of the connecting plate, with the blades of the two cutters facing opposite directions.

6. The rotating shear device for lithium metal of claim 5, wherein, The cutting blade has a hook-shaped blade.

7. A rotary shearing device for metallic lithium according to claim 4, characterized in that, A second fixing hole is provided at the center of the connecting plate, and the second fixing hole is fixedly installed on the motor shaft by bolts.

8. The rotating shear device for lithium metal of claim 1, wherein, The bottom of the mold is provided with a mold base, and the bottom of the mold base is provided with a mold base plate. The mold base plate is provided with a plurality of mold holes corresponding to the material guide holes, and the mold holes are connected to the corresponding material guide holes. The mold base plate is provided with a plurality of first fixing holes, and the mold base plate is fixedly installed on the bottom of the mold base by bolts through the first fixing holes.

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