Stirring machine for producing lithium battery negative electrode material

Abstract

The invention discloses a stirrer for producing a lithium battery negative electrode material, and relates to the technical field of stirrers. The device comprises a substrate on which an accommodating shell is hinged; the first stirring part is mounted in the accommodating shell and is used for stirring a material positioned in the accommodating shell; and the second stirring piece is arranged in the accommodating shell and is connected with the first stirring piece. The first stirring piece and the second stirring piece are installed in the containing shell and connected with the first stirring piece through the telescopic piece, during use, raw materials are stirred through the first stirring piece and the second stirring piece, and meanwhile the position of the first stirring piece in the containing shell is changed through the telescopic piece; according to the stirring device, the mobility of the first stirring part in the containing shell is improved, the containing shell swings on the base plate through cooperation of the lifting part, the mobility of materials in the containing shell is improved, and therefore the stirring effect of the device on the materials is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mixers, and in particular to a mixer for producing negative electrode materials for lithium batteries. Background Art

[0002] Negative electrode materials are the key to high capacity of lithium-ion batteries. Currently, the negative electrode materials of commercial lithium-ion batteries are mostly carbon materials, among which artificial graphite is one of the mainstream. When processing it, a mixer is needed to stir it.

[0003] In the prior art, when the negative electrode material of the lithium battery is stirred, the material is stirred only by the internal stirring blades. Since the stirring blades are fixed in position in the mixer, the contact area between the stirring blades and the material is relatively fixed, and the stirring effect is poor. Summary of the invention

[0004] The object of the present invention is to provide a mixer for producing negative electrode materials for lithium batteries. A first stirring member and a second stirring member are installed in a containing shell, and the first stirring member is connected to the stirring member through a telescopic member. When in use, while the raw materials are stirred by the first stirring member and the second stirring member, the position of the first stirring member in the containing shell is changed through the telescopic member, thereby increasing the fluidity of the first stirring member in the containing shell. Moreover, through the cooperation of the lifting member, the containing shell is swung on the substrate, thereby increasing the fluidity of the material in the containing shell, thereby increasing the stirring effect of the device on the material.

[0005] The present invention adopts the following technical solutions:

[0006] A mixer for producing negative electrode materials for lithium batteries, comprising: a base plate, on which a containing shell is hinged; a first stirring member installed in the containing shell, the first stirring member being used to stir the material in the containing shell; a second stirring member installed in the containing shell, the second stirring member being connected to the first stirring member, the first stirring member and the second stirring member having opposite rotation directions; a telescopic member installed in the containing shell, the telescopic member being connected to the first stirring member, the telescopic member being used to drive the first stirring member to move along the axis direction of the containing shell; and a lifting member installed on the base plate, the lifting member being used to drive the containing shell to swing on the base plate.

[0007] Furthermore, the first stirring member comprises:

[0008] A rotating rod rotatably mounted on the housing shell, a connecting plate being mounted on the rotating rod, and a driving motor connected to the rotating rod being mounted on the housing shell; stirring blades are arranged in a circular array around the connecting plate along the axis direction of the rotating rod.

[0009] Furthermore, the second stirring member comprises:

[0010] A driving bevel gear mounted on the rotating rod, wherein a transmission bevel gear meshing with the driving bevel gear is rotatably mounted on the rotating rod;

[0011] A mounting plate is rotatably mounted on the end of the rotating rod, a connecting bevel gear meshing with the transmission bevel gear is mounted on the mounting plate, and a plurality of mixing blades are arranged in an annular array on the peripheral side of the mounting plate along the axis direction of the rotating rod.

[0012] Furthermore, a rotating plate is rotatably mounted on the containing shell, a connecting rod is mounted on the rotating plate, a rack is hinged on one end of the connecting rod away from the center of the rotating plate, a connecting gear meshing with the rack is mounted on the end of the rotating rod, a limit frame is movably sleeved on the rotating rod, and the limit frame is used to accommodate the rack and the connecting gear.

[0013] Furthermore, the telescopic member comprises:

[0014] A sliding sleeve is slidably mounted on the rotating rod, and the connecting plate is connected to the rotating rod through the sliding sleeve;

[0015] A connecting spring is located between the sliding sleeve and the rotating rod, a bevel block is installed on the rotating rod, a push plate is slidably installed on the inner wall of the accommodating shell, the push plate is constructed with a bevel surface for contacting the bevel block, a return spring is installed between the push plate and the accommodating shell, and the push plate is used to push the connecting plate.

[0016] Furthermore, the lifting member comprises:

[0017] A protrusion is installed at the bottom of the accommodating shell, and a rotating wheel for contacting the protrusion is rotatably installed on the substrate, and the upper surface of the rotating wheel is an inclined surface. When the rotating wheel rotates, the accommodating shell is pushed to swing on the substrate;

[0018] A bevel gear set installed on the accommodating shell, wherein one bevel gear is connected to the output shaft of the driving motor, a mounting rod is installed on the other bevel gear, a sliding rod is slidably installed on the base plate, and the sliding rod is connected to the mounting rod through a universal joint;

[0019] A gear pair is installed on the base plate, wherein one gear is coaxially connected to the rotating wheel, and the other gear is slidably connected to the sliding rod.

[0020] Furthermore, a connecting block is installed in the accommodating shell, the accommodating shell is connected to the reset spring through the connecting block, a protective shell is slidably installed in the accommodating shell, the reset spring is located in the protective shell, and the protective shell is slidably connected to the connecting block.

[0021] Furthermore, an expansion panel is installed on the rotating rod, and the inclined block is installed on the rotating rod through the expansion panel.

[0022] Furthermore, a jacket block is installed on the rotating rod, a plug rod is installed on the sliding sleeve, the connecting spring is connected to the sliding sleeve via the plug rod, and a receiving groove for receiving the end of the plug rod is provided on the jacket block.

[0023] Furthermore, an oblique angle is provided on the upper surface of the rotating wheel, and a roller which is rotatably mounted on the protrusion and rolls with the rotating wheel.

[0024] The beneficial effects of the present invention are as follows:

[0025] The present invention installs a first stirring member and a second stirring member in a containing shell, and connects the first stirring member through a telescopic member. When in use, while the first stirring member and the second stirring member are stirring the raw materials, the telescopic member changes the position of the first stirring member in the containing shell, thereby increasing the fluidity of the first stirring member in the containing shell. Moreover, through the cooperation of the lifting member, the containing shell is allowed to swing on the base plate, thereby increasing the fluidity of the material in the containing shell, thereby increasing the stirring effect of the device on the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a schematic structural diagram of the first stirring member in the present invention;

[0028] Figure 3 It is a structural schematic diagram of the telescopic member in the present invention;

[0029] Figure 4 It is a structural schematic diagram of the lifting member in the present invention;

[0030] Figure 5 It is a structural explosion diagram of the first stirring member and the second stirring member in the present invention;

[0031] Figure 6 It is a schematic diagram of the internal structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the internal structure of the containing shell in the present invention;

[0033] Figure 8 yes Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0034] Fig. 9 yes Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0035] Reference numerals:

[0036] 1. Substrate;

[0037] 2. Containing shell;

[0038] 3. First stirring member; 301. Rotating rod; 302. Connecting plate; 303. Stirring blade; 304. Driving motor;

[0039] 4. Second stirring member; 401. Driving bevel gear; 402. Transmission bevel gear; 403. Connecting bevel gear; 404. Mounting plate; 405. Mixing blade;

[0040] 5. telescopic member; 501. sliding sleeve; 502. connecting spring; 503. inclined block; 504. push plate; 505. return spring;

[0041] 6. Lifting member; 601. Bump; 602. Rotating wheel; 603. Bevel gear set; 604. Mounting rod; 605. Gear pair; 606. Sliding rod; 607. Universal joint;

[0042] 7. Rotating plate; 8. Connecting rod; 9. Rack; 10. Connecting gear; 11. Limiting frame; 12. Connecting block; 13. Protective shell; 14. Expanding panel; 15. Outer cover block; 16. Inserting rod; 17. Receiving groove; 18. Roller; 19. Baffle; 20. Waist hole; 21. Convex plate. DETAILED DESCRIPTION

[0043] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a mixer for producing negative electrode materials for lithium batteries, comprising:

[0045] A substrate 1, a housing 2 is hingedly connected to the substrate 1, and a feed port and a discharge port are provided on the housing 2. When in use, the housing 2 is used to contain the negative electrode material of the lithium battery. Hereinafter, the negative electrode material of the lithium battery is referred to as the raw material;

[0046] A first stirring member 3 installed in the containing shell 2, the first stirring member 3 is used to stir the material in the containing shell 2;

[0047] A second stirring member 4 is installed in the accommodating shell 2, the second stirring member 4 is connected to the first stirring member 3, the first stirring member 3 and the second stirring member 4 rotate in opposite directions, the first stirring member 3 and the second stirring member 4 are installed at different positions, and the two are staggered with each other, so that when the first stirring member 3 and the second stirring member 4 stir the raw materials, the mutual influence between them is reduced, and the two are staggered, so that the contact area of ​​the raw materials being stirred is increased, and the stirring effect of the device is increased;

[0048] The telescopic member 5 is installed in the containing shell 2, and the telescopic member 5 is connected to the first stirring member 3. The telescopic member 5 is used to drive the first stirring member 3 to move along the axis direction of the containing shell 2. In the process of the first stirring member 3 stirring the raw materials, the first stirring member 3 moves in the containing shell 2 while stirring the raw materials through the cooperation of the telescopic member 5, so that the position of the first stirring member 3 is changed, and the raw materials in different positions in the containing shell 2 can be stirred, thereby increasing the stirring effect;

[0049] The lifting member 6 installed on the base plate 1 is used to drive the containing shell 2 to swing on the base plate 1. When the raw materials are stirred, the containing shell 2 is also swung on the base plate 1 by the cooperation of the lifting member 6, which increases the fluidity of the raw materials in the containing shell 2, facilitates the raw materials to better contact with the first stirring member 3 and the second stirring member 4, and thus increases the stirring effect of the raw materials;

[0050] Compared with the prior art, a first stirring member 3 and a second stirring member 4 are installed in the containing shell 2, and are connected to the first stirring member 3 through a telescopic member 5. When in use, while the raw materials are stirred by the first stirring member 3 and the second stirring member 4, the position of the first stirring member 3 in the containing shell 2 is changed through the telescopic member 5, thereby increasing the mobility of the first stirring member 3 in the containing shell 2, and through the cooperation of the lifting member 6, the containing shell 2 is swung on the substrate 1, thereby increasing the fluidity of the material in the containing shell 2, thereby increasing the stirring effect of the device on the material.

[0051] like Figure 5 and Figure 6 As shown, in some embodiments, the first stirring member 3 includes:

[0052] A rotating rod 301 is rotatably mounted on the housing 2, a connecting plate 302 is mounted on the rotating rod 301, a driving motor 304 connected to the rotating rod 301 is mounted on the housing 2, and a diameter of the connecting plate 302 is larger than a rod diameter of the rotating rod 301;

[0053] The stirring blades 303 arranged in a circular array on the periphery of the connecting plate 302 along the axial direction of the rotating rod 301 are driven by the driving motor 304 when in use, so that the rotating rod 301 rotates, thereby driving the stirring blades 303 on the connecting plate 302 to rotate, and then the stirring blades 303 stir the raw materials, so that the raw materials in the containing shell 2 are evenly mixed, thereby increasing the degree of mixing between the raw materials.

[0054] like Figure 5 and Figure 6 As shown, in some embodiments, the second stirring member 4 includes:

[0055] A driving bevel gear 401 is mounted on the rotating rod 301, and a transmission bevel gear 402 meshing with the driving bevel gear 401 is rotatably mounted on the rotating rod 301, and the rotation direction of the transmission bevel gear 402 is perpendicular to the rotation direction of the rotating rod 301;

[0056] A mounting plate 404 is rotatably mounted on the end of the rotating rod 301, on which a connecting bevel gear 403 meshing with a transmission bevel gear 402 is mounted, and a plurality of mixing blades 405 are arranged in a circular array on the circumferential side of the mounting plate 404 along the axial direction of the rotating rod 301, and the mounting plate 404 is driven by the connecting bevel gear 403, the transmission bevel gear 402 and the driving bevel gear 401. When the rotating rod 301 rotates, the mounting plate 404 rotates in the opposite direction thereof, thereby driving the mixing blades 405 to rotate in the containing shell 2, and through the reverse stirring between the stirring blades 303 and the mixing blades 405, the fluidity of the raw materials in the containing shell 2 is enhanced, thereby increasing the stirring and mixing effect of the device on the raw materials.

[0057] like Figure 1 and Figure 5 As shown, in some embodiments, a rotating plate 7 is rotatably mounted on the housing 2, a connecting rod 8 is mounted on the rotating plate 7, a rack 9 is hinged on one end of the connecting rod 8 away from the center of the rotating plate 7, a connecting gear 10 meshing with the rack 9 is mounted on the end of the rotating rod 301, a limit frame 11 is movably sleeved on the rotating rod 301, the limit frame 11 is used to accommodate the rack 9 and the connecting gear 10, one end of the connecting rod 8 hinged to the rack 9 makes a circular motion around the axis of the rotating plate 7, driving the end of the rack 9 to also make a circular motion around the axis of the rotating plate 7, so that the rack 9 pulls the connecting gear 10 to rotate. When the rack 9 is moved away from the rotating rod 301 by the connecting rod 8 and then approaches it again, it pulls the connecting gear 10 to rotate in the opposite direction, so that the rotating rod 301 rotates forward and reversely, and then the stirring blade 303 and the mixing blade 405 also rotate forward and reversely. When the forward rotation drives the raw material to rotate in the containing shell 2, when the raw material continues to rotate forward by inertia, the stirring blade 303 and the mixing blade 405 start to reverse and collide with the raw material, so that the raw material is better mixed, thereby increasing the stirring effect of the device;

[0058] Positive rotation is the initial rotation direction of the stirring blade 301 and the mixing blade 405. Due to the misalignment between the two, the initial directions of the two stirring the raw materials are inconsistent, so that the raw materials also have relative movement, so that the raw materials are better mixed.

[0059] like Figure 5 and Figure 7 As shown, in some embodiments, the telescopic member 5 includes:

[0060] A sliding sleeve 501 is slidably mounted on the rotating rod 301, and the connecting plate 302 is connected to the rotating rod 301 through the sliding sleeve 501. The sliding sleeve 501 allows the connecting plate 302 to slide only on the rotating rod 301 along its axial direction;

[0061] A connecting spring 502 is located between the sliding sleeve 501 and the rotating rod 301, an inclined block 503 is installed on the rotating rod 301, a push plate 504 is slidably installed on the inner wall of the accommodating shell 2, and an inclined surface for contacting the inclined block 503 is constructed on the push plate 504. A reset spring 505 is installed between the push plate 504 and the accommodating shell 2. The push plate 504 is used to push the connecting plate 302. When the sliding sleeve 501 is subjected to an external force and slides on the rotating rod 301, when the external force is removed, the connecting spring 502 resets the sliding sleeve 501;

[0062] When in use, when the rotating rod 301 rotates, it drives the inclined block 503 to make a circular motion along its axial direction. When the inclined block 503 rotates to conflict with the push plate 504, the push plate 504 is pushed in the direction of the connecting plate 302, so that the push plate 504 pushes the connecting plate 302, so that the sliding sleeve 501 drives the connecting plate 302 to slide on the rotating rod 301, and then the stirring blade 303 slides in the containing shell 2 along the axial direction of the containing shell 2, thereby increasing the movement amplitude of the stirring blade 303 in the containing shell 2, thereby increasing the stirring effect of the device.

[0063] like Figure 4 As shown, in some embodiments, the lifting member 6 includes:

[0064] The convex block 601 is installed at the bottom of the housing 2, and a rotating wheel 602 for contacting the convex block 601 is rotatably installed on the substrate 1. The upper surface of the rotating wheel 602 is an inclined surface. When the rotating wheel 602 rotates, it pushes the housing 2 to swing on the substrate 1. The shape of the rotating wheel 602 is as follows: Figure 4 As shown, when the lower end of the rotating wheel 602 contacts the protrusion 601, the free end of the containing shell 2 falls down due to the action of gravity, and when the higher end of the rotating wheel 602 contacts the protrusion 601, the containing shell 2 is pushed to move upward, thereby causing the containing shell 2 to swing on the substrate 1, thereby increasing the fluidity of the raw materials therein and facilitating better mixing of the raw materials;

[0065] A bevel gear set 603 is installed on the containing shell 2, wherein one bevel gear is connected to the output shaft of the driving motor 304, a mounting rod 604 is installed on the other bevel gear, a slide rod 606 is slidably installed on the base plate 1, and the slide rod 606 is connected to the mounting rod 604 through a universal joint 607, a baffle plate 19 is installed on the containing shell 2, a waist hole 20 is opened on the baffle plate 19, and the slide rod 606 is slidably connected to the waist hole 20, the part of the slide rod 606 located on the waist hole 20 is the upper rod, and the part located inside and below the waist hole 20 is the lower rod, the hole length of the waist hole 20 is greater than the rod diameter of the upper rod, but the hole width is less than the rod diameter of the upper rod, and the rod diameter of the lower rod is less than the hole width of the waist hole 20, and the bevel gear set 603 has two perpendicular bevel gears, which transmit the power provided by the driving motor 304 along its vertical direction;

[0066] A gear pair 605 is installed on the base plate 1, wherein one gear is coaxially connected to the rotating wheel 602, and the other gear is slidably connected to the slide bar 606. A convex plate 21 is installed on the circumference of the slide bar 606, and the convex plate 21 is inserted on the gear so that the slide bar 606 can only slide on the gear. When the slide bar 606 rotates, it can still drive the gear to rotate;

[0067] When in use, when the driving motor 304 drives the first stirring member 3 and the second stirring member 4 to rotate, the bevel gear set 603 also drives the mounting rod 604 to rotate, and the transmission of the universal joint 607 causes the slide bar 606 to rotate, and then the slide bar 606 drives the gear pair 605 to rotate, and finally the gear pair 605 drives the rotating wheel 602 to rotate, so that the rotating wheel 602 is tilted to contact the protrusion 601, so that the containing shell 2 swings on the substrate 1. When the containing shell 2 is away from the substrate 1, the driving motor 304 moves upward, and the baffle 19 pushes the sliding rod 606 to move upward, so that the two bevel gears of the bevel gear set 603 remain meshed, and the sliding rod 606 slides in the waist hole 20 to meet the activity of the sliding rod 606. In the process, the universal joint 607 is used to ensure the transmission between the mounting rod 604 and the sliding rod 606, so that the sliding rod 606 and the mounting rod 604 can still transmit the power of the driving motor 304.

[0068] When in use, the lifting member 6 cooperates to make the containing shell 2 swing on the base plate 1, thereby increasing the fluidity of the raw materials inside the containing shell 2, thereby making the raw materials better mixed.

[0069] like Figure 3 and Figure 7As shown, in some embodiments, a connecting block 12 is installed in the containing shell 2, and the containing shell 2 is connected to the reset spring 505 through the connecting block 12. A protective shell 13 is slidably installed in the containing shell 2, and the reset spring 505 is located in the protective shell 13. The protective shell 13 is slidably connected to the connecting block 12, and one end of the protective shell 13 is combined with the end of the push plate 504. When in use, the protective shell 13 separates the reset spring 505 from the raw materials inside the containing shell 2, reducing the possibility that the raw materials will affect the reset. The connecting block 12 is slidably connected to the protective shell 13 so that when the push plate 504 moves upward, when the protective shell 13 contacts the connecting block 12, it can continue to slide, thereby increasing the activity of the push plate 504 inside the containing shell 2, thereby increasing the activity of the first stirring member 3 in the containing shell 2, and increasing the stirring effect of the device on the raw materials.

[0070] like Figure 2 and Figure 7 As shown, in some embodiments, an expansion panel 14 is installed on the rotating rod 301, and the inclined block 503 is installed on the rotating rod 301 through the expansion panel 14. The diameter of the expansion panel 14 is larger than the rod diameter of the rotating rod 301. When in use, the inclined block 503 is installed through the expansion panel 14, which extends the installation distance of the inclined block 503, facilitates the inclined block 503 to be closer to the push plate 504, increases the practicality of the inclined block 503, and increases the contact area between the rotating rod 301 and the raw material through the expansion panel 14.

[0071] like Figure 8 and Fig. 9 As shown, in some embodiments, a sleeve block 15 is installed on the rotating rod 301, a plug rod 16 is installed on the sliding sleeve 501, and the connecting spring 502 is connected to the sliding sleeve 501 through the plug rod 16. A receiving groove 17 for accommodating the end of the plug rod 16 is opened on the sleeve block 15, and the expansion panel 14 is also installed on the sleeve block 15. The driving bevel gear 401 is also installed on the rotating rod 301 through the sleeve block 15. The plug rod 16 is located on both sides of the sliding sleeve 501 and is slidably connected to the receiving groove 17 on the sleeve block 15, and the connecting spring 502 is also located in the receiving groove 17, so that the receiving groove 17 limits the sliding direction of the plug rod 16 while also limiting the deformation direction of the connecting spring 502, thereby increasing the stability of the sliding sleeve 501 when sliding.

[0072] like Figure 4 As shown, in some embodiments, the upper surface of the rotating wheel 602 has an inverted bevel, and a roller 18 is rotatably mounted on the protrusion 601 to roll with the rotating wheel 602. When in use, the roller 18 rolls with the rotating wheel 602, so that when the rotating wheel 602 and the protrusion 601 collide, the wear between the two is reduced, thereby increasing the service life of the device.

[0073] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mixer for producing negative electrode materials for lithium batteries, characterized in that: include: A base plate (1), a containing shell (2) being hingedly connected to the base plate (1); a first stirring member (3) installed in the containing shell (2), the first stirring member (3) being used to stir the material in the containing shell (2); a second stirring member (4) installed in the containing shell (2), the second stirring member (4) being connected to the first stirring member (3), the first stirring member (3) and the second stirring member (4) rotating in opposite directions; a telescopic member (5) installed in the containing shell (2), the telescopic member (5) being connected to the first stirring member (3), and the telescopic member (5) being used to drive the first stirring member (3) to move along the axial direction of the containing shell (2); A lifting member (6) is installed on the base plate (1), and the lifting member (6) is used to drive the accommodating shell (2) to swing on the base plate (1).

2. A mixer for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The first stirring member (3) comprises: Rotating a rotating rod (301) mounted on the accommodating shell (2), wherein a connecting plate (302) is mounted on the rotating rod (301), and a driving motor (304) connected to the rotating rod (301) is mounted on the accommodating shell (2); Stirring blades (303) are arranged in a circular array around the connecting plate (302) along the axis of the rotating rod (301).

3. A mixer for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The second stirring member (4) comprises: A driving bevel gear (401) mounted on the rotating rod (301), wherein a transmission bevel gear (402) meshing with the driving bevel gear (401) is rotatably mounted on the rotating rod (301); A mounting plate (404) is rotatably mounted on the end of the rotating rod (301), a connecting bevel gear (403) meshing with the transmission bevel gear (402) being mounted on the mounting plate (404), and a plurality of mixing blades (405) are arranged in an annular array on the circumference of the mounting plate (404) along the axial direction of the rotating rod (301).

4. A mixer for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: A rotating plate (7) is rotatably mounted on the accommodating shell (2), a connecting rod (8) is mounted on the rotating plate (7), a rack (9) is hingedly connected to one end of the connecting rod (8) away from the center of the rotating plate (7), a connecting gear (10) meshing with the rack (9) is mounted on the end of the rotating rod (301), a limit frame (11) is movably sleeved on the rotating rod (301), and the limit frame (11) is used to accommodate the rack (9) and the connecting gear (10).

5. A mixer for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The telescopic member (5) comprises: A sliding sleeve (501) is slidably mounted on the rotating rod (301), and the connecting plate (302) is connected to the rotating rod (301) through the sliding sleeve (501); A connecting spring (502) is located between the sliding sleeve (501) and the rotating rod (301), an inclined block (503) is installed on the rotating rod (301), a push plate (504) is slidably installed on the inner wall of the accommodating shell (2), and the push plate (504) is constructed with an inclined surface for contacting the inclined block (503), a return spring (505) is installed between the push plate (504) and the accommodating shell (2), and the push plate (504) is used to push the connecting plate (302).

6. A mixer for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The lifting member (6) comprises: A protrusion (601) is mounted on the bottom of the accommodating shell (2); a rotating wheel (602) is rotatably mounted on the substrate (1) and is used to abut against the protrusion (601); the upper surface of the rotating wheel (602) is an inclined surface; when the rotating wheel (602) rotates, it pushes the accommodating shell (2) to swing on the substrate (1); A bevel gear set (603) mounted on the containing shell (2), wherein one bevel gear is connected to the output shaft of the driving motor (304), a mounting rod (604) is mounted on the other bevel gear, a sliding rod (606) is slidably mounted on the base plate (1), and the sliding rod (606) is connected to the mounting rod (604) via a universal joint (607); A gear pair (605) is mounted on the base plate (1), wherein one gear is coaxially connected to the rotating wheel (602), and the other gear is slidably connected to the sliding rod (606).

7. A mixer for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: A connecting block (12) is installed in the containing shell (2), and the containing shell (2) is connected to the return spring (505) through the connecting block (12). A protective shell (13) is slidably installed in the containing shell (2), and the return spring (505) is located in the protective shell (13). The protective shell (13) is slidably connected to the connecting block (12).

8. A mixer for producing negative electrode materials for lithium batteries according to claim 2, characterized in that: An expansion panel (14) is installed on the rotating rod (301), and the inclined block (503) is installed on the rotating rod (301) through the expansion panel (14).

9. A mixer for producing negative electrode materials for lithium batteries according to claim 2, characterized in that: The rotating rod (301) is provided with a jacket block (15), the sliding sleeve (501) is provided with an insertion rod (16), the connecting spring (502) is connected to the sliding sleeve (501) via the insertion rod (16), and the jacket block (15) is provided with a receiving groove (17) for receiving the end of the insertion rod (16).

10. A mixer for producing negative electrode materials for lithium batteries according to claim 6, characterized in that: The upper surface of the rotating wheel (602) is provided with an inverted bevel, and a roller (18) is rotatably mounted on the protrusion (601) and is in rolling cooperation with the rotating wheel (602).

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