Molybdenum powder screening device with returned material grinding function

Abstract

A molybdenum powder screening device with a returned material grinding function particularly relates to the technical field of molybdenum powder screening and mainly comprises a screening box body, a returned material hopper and an electric valve, the returned material hopper is located below the screening box body, the electric valve is fixedly communicated with the bottom end of the returned material hopper, and a linkage returned material mechanism is arranged on one side of the electric valve; the linkage material returning mechanism comprises a connecting block fixedly arranged on one side of the electric valve, a telescopic rod is welded to one side of the connecting block, and a telescopic electric cylinder is fixedly installed at one end of the telescopic rod. A linkage material returning mechanism is adopted, screened molybdenum powder raw materials continue to enter a material returning hopper, a telescopic rod drives a connecting block to move rightwards, a gear motor drives a screw rod to rotate, and when an electric valve moves upwards to be higher than a feeding port of a feeding cover, a telescopic electric cylinder pushes the telescopic rod to move leftwards; and the electric valve is opened to continuously feed the molybdenum powder raw materials in the return hopper into the screening box body, so that the returned materials are more convenient to screen.

Description

Technical Field

[0001] The utility model relates to the technical field of molybdenum powder screening, in particular to a molybdenum powder screening device with recycled material grinding. Background Art

[0002] The molybdenum powder screening device separates the molybdenum powder particles on the screen by vibration or other mechanical means, effectively removing impurities, controlling the particle size distribution, ensuring the quality and precision of the molybdenum powder, and solving the agglomeration problem: the molybdenum powder particles are small and prone to agglomeration, which affects the screening effect. CN219442441U discloses a molybdenum powder production screening device. This technology uses an inclined structure and a side discharge port to quickly and independently take out materials, and is convenient for taking out materials during work, which is more efficient. In addition, the feed conduit can be conveniently guided stably through the first and second guide auger, and the feed conduit can be raised and lowered by an extension sleeve, which facilitates the rapid replacement of the molybdenum powder trough and is more convenient to use. However, this screening technology has the following defects;

[0003] During the processing of molybdenum powder, the screening device needs to place the molybdenum powder in the screening device and screen it through the rotating force. However, during the screening process, the molybdenum powder is discharged before it reaches the screening particle size requirement, making it difficult to return the material for further grinding and screening, resulting in inconvenience in screening the returned material. Therefore, a molybdenum powder screening device with return material grinding is provided. Utility Model Content

[0004] The utility model is to solve the above technical problems and provides a molybdenum powder screening device with return material grinding.

[0005] The technical solution of this utility model is:

[0006] A molybdenum powder screening device with return material grinding includes a screening box, a return material hopper and an electric valve, the return material hopper is located below the screening box, the electric valve is fixedly connected to the bottom end of the return material hopper, and a linkage return material mechanism is provided on one side of the electric valve; the linkage return material mechanism includes a connecting block fixedly arranged on one side of the electric valve, and a telescopic rod is welded to one side of the connecting block, and a telescopic electric cylinder is fixedly installed on one end of the telescopic rod; one end of the telescopic electric cylinder is fixedly connected to a socket block, and the inner wall of the socket block is threadedly connected to a screw, and the outer wall of the socket block is slidably connected to a support frame, and a reduction motor is fixedly installed on the top of the support frame, and the reduction motor is used to drive the screw to rotate.

[0007] Preferably, the connecting block is fixedly connected to the return hopper, the inner wall of the return hopper is set to a smooth surface, the outer wall of the socket block is slidingly connected to the inner wall of the support frame, and the vertical cross-sectional shape of the support frame is set to T-shaped; the reduction motor is used to drive the screw to rotate, and reinforcement frames are welded on both sides of the screening box, and the vertical cross-sectional shape of the reinforcement frame is set to be concave.

[0008] Preferably, a grinding roller is rotatably connected to the inside of the screening box, a rotating shaft is fixedly installed on the inner wall of the grinding roller, a rotating motor is coaxially connected to one end of the rotating shaft, and the rotating motor is fixedly connected to the screening box, a screening mesh plate is installed below the grinding roller, and the screening mesh plate is fixedly connected to the screening box.

[0009] Preferably, a positioning sleeve is fixedly installed on one side of the screening box, and a feed cover is installed above the screening box, and a plug-in block is fixedly installed on one side of the outer wall of the feed cover, and the plug-in block is rotatably plugged in between the positioning sleeve; a rotating shaft is welded to the bottom end of the feed cover, and one end of the rotating shaft is coaxially connected to a transmission motor, and a support plate is installed below the transmission motor, and the screening box and the transmission motor are fixedly connected to the support plate.

[0010] The beneficial effects of the utility model are:

[0011] 1. A linkage return mechanism is used. The screened molybdenum powder raw materials continue to enter the return hopper. The telescopic electric cylinder is started to drive the telescopic rod to move right and retract. The telescopic rod drives the connecting block to move right. The reduction motor drives the screw to rotate. The screw rotates inside the support frame. When the electric valve moves up and is higher than the feed port of the feed cover, the telescopic electric cylinder pushes the telescopic rod to the left, and the electric valve is opened to continue feeding the molybdenum powder raw materials in the return hopper into the screening box for grinding and screening. If the molybdenum powder does not meet the screening particle size requirements, it can be returned for further grinding and screening, which makes the return material screening more convenient.

[0012] 2. The screening box supports the support plate, the support plate supports the transmission motor, and the rotating shaft carries the feed cover to rotate clockwise downward, which can quickly position and dock the feed cover with the screening box, and quickly install and complete the screening operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a schematic diagram of the partial structure of the connection between the telescopic electric cylinder and the socket block of the present invention.

[0015] Figure 3 This is a schematic diagram of the partial structure of the connection between the screening box and the rotating motor of the present invention.

[0016] Figure 4 This is a side structural schematic diagram of the molybdenum powder screening device with return material grinding of the present utility model.

[0017] Figure 5 This is a schematic diagram of the partial structure of the connection between the feed cover and the rotating shaft of the present invention.

[0018] Figure 6 It is a schematic diagram of the local structure of the vertical section of the connection between the screening box and the screening mesh plate of the present invention.

[0019] In the figure: 1. Screening box; 2. Return hopper; 3. Electric valve; 4. Connecting block; 5. Telescopic rod; 6. Telescopic electric cylinder; 7. Socket block; 8. Screw; 9. Support frame; 10. Reducer motor; 11. Reinforcement frame; 12. Grinding roller; 13. Rotating shaft; 14. Rotating motor; 15. Positioning sleeve; 16. Plug-in block; 17. Feed cover; 18. Rotating shaft; 19. Transmission motor; 20. Support plate; 21. Screening mesh plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] As attached Figure 1-6 As shown, a molybdenum powder screening device with return material grinding is provided with a linkage return material mechanism. The setting of the linkage return material mechanism can open the electric valve 3 to continue to put the molybdenum powder raw material in the return hopper 2 into the screening box 1 for grinding and screening. If the molybdenum powder does not meet the screening particle size requirements, the material can be returned for further grinding and screening, which makes the return material screening more convenient. The specific structural setting of the linkage return material mechanism is as follows.

[0022] In this embodiment, as shown in the attached Figure 1-3As shown, the return hopper 2 is located below the screening box 1, the electric valve 3 is fixedly connected to the bottom end of the return hopper 2, and a linkage return mechanism is provided on one side of the electric valve 3; the linkage return mechanism includes a connecting block 4 fixedly arranged on one side of the electric valve 3, and a telescopic rod 5 is welded on one side of the connecting block 4, and a telescopic electric cylinder 6 is fixedly installed on one end of the telescopic electric cylinder 6; one end of the telescopic electric cylinder 6 is fixedly connected to a socket block 7, and the inner wall of the socket block 7 is threadedly connected to a screw 8, and the outer wall of the socket block 7 is slidably connected to a support frame 9, and a reduction motor 10 is fixedly installed on the top of the support frame 9, and the reduction motor 10 is used to drive the screw 8 to rotate, the connecting block 4 and the return hopper 2 are fixedly connected, the inner wall of the return hopper 2 is set to a smooth surface, the outer wall of the socket block 7 is slidably connected to the inner wall of the support frame 9, and the vertical cross-section of the support frame 9 is set to T-shaped; the reduction motor 10 is used to drive the screw 8 to rotate.

[0023] In this embodiment, as shown in the attached Figure 1-6 As shown, reinforcement frames 11 are welded on both sides of the screening box 1, and the vertical cross-section of the reinforcement frames 11 is set to be concave, so that the two reinforcement frames 11 can provide support force to the screening box 1, increase the stability of the screening box 1, and avoid shaking of the screening box 1 during use.

[0024] The screening box 1 is internally rotatably connected to a grinding roller 12, and a rotating shaft 13 is fixedly installed on the inner wall of the grinding roller 12. A rotating motor 14 is coaxially connected to one end of the rotating shaft 13, and the rotating motor 14 is fixedly connected to the screening box 1 to facilitate the pouring of the molybdenum powder raw material into the feed cover 17. The rotating motor 14 is supported by the screening box 1, and the rotating motor 14 drives the rotating shaft 13 to rotate. The rotating shaft 13 carries the grinding roller 12 to rotate inside the screening box 1. At the same time, the grinding roller 12 drives the molybdenum powder raw material to roll and grind inside the screening box 1, which facilitates the grinding operation. A screening mesh plate 21 is installed below the grinding roller 12, and the screening mesh plate 21 is fixedly connected to the screening box 1 to facilitate the screening operation through the screening mesh plate 21. The screening mesh plate 21 can present arc-shaped contact screening.

[0025] When the molybdenum powder screening device with return material grinding in this embodiment is in use, two reinforcement frames 11 are used to provide support force for the screening box 1 to increase the stability of the screening box 1, and then the feed cover 17 is covered on the top of the screening box 1 to achieve closure, and the molybdenum powder raw material is poured into the feed cover 17. The rotating motor 14 is supported by the screening box 1, and the rotating motor 14 drives the rotating shaft 13 to rotate. The rotating shaft 13 carries the grinding roller 12 to rotate inside the screening box 1. At the same time, the grinding roller 12 drives the molybdenum powder raw material to roll and grind inside the screening box 1, and the screening operation is achieved through the screening mesh plate 21.

[0026] The molybdenum powder raw material after screening continues to enter the return hopper 2. When the molybdenum powder raw material inside the return hopper 2 needs to be ground again, the telescopic electric cylinder 6 can be started to drive the telescopic rod 5 to move right and retract, and the telescopic rod 5 drives the connecting block 4 to move right, and the connecting block 4 drives the return hopper 2 to move right, until the left side of the return hopper 2 is located on the right side of the screening box 1. Then, by starting the reduction motor 10, the reduction motor 10 drives the screw 8 to rotate, and the screw 8 rotates inside the support frame 9. The screw 8 drives the socket block 7 to move along the support frame under the action of the thread transmission force. The inner wall of the frame 9 moves up, and the socket block 7 carries the telescopic electric cylinder 6 to move up, and the telescopic electric cylinder 6 drives the connecting block 4 to move the electric valve 3 up. When the electric valve 3 moves up and is higher than the feed port of the feed cover 17, the telescopic rod 5 is pushed to the left by the telescopic electric cylinder 6. The telescopic rod 5 drives the connecting block 4 to move left, and the connecting block 4 drives the return hopper 2 to move left. The return hopper 2 drives the electric valve 3 to move left to the feed port of the feed cover 17, and the electric valve 3 can be opened to continue to put the molybdenum powder raw material inside the return hopper 2 into the screening box 1 for grinding and screening.

[0027] In this embodiment, as shown in Figures 3-5, a positioning sleeve 15 is fixedly installed on one side of the screening box 1, and a feed cover 17 is installed above the screening box 1, and a plug-in block 16 is fixedly installed on one side of the outer wall of the feed cover 17, and the plug-in block 16 is rotatably plugged in between the positioning sleeve 15; a rotating shaft 18 is welded to the bottom end of the feed cover 17, and one end of the rotating shaft 18 is coaxially connected to a transmission motor 19, and a support plate 20 is installed below the transmission motor 19, and the screening box 1 and the transmission motor 19 are fixedly connected to the support plate 20.

[0028] When in use according to the upper structure, the screening box 1 supports the support plate 20, the support plate 20 supports the transmission motor 19, the transmission motor 19 drives the rotating shaft 18 to rotate, and the rotating shaft 18 carries the feed cover 17 to rotate clockwise downward, and the feed cover 17 drives the plug-in block 16 to rotate and be plugged into the positioning sleeve block 15, so that the feed cover 17 and the screening box 1 can be quickly positioned and docked.

[0029] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A molybdenum powder screening device with return material grinding, comprising a screening box (1), a return hopper (2) and an electric valve (3), wherein the return hopper (2) is located below the screening box (1), and the electric valve (3) is fixedly connected to the bottom end of the return hopper (2), characterized in that: A linkage material return mechanism is provided on one side of the electric valve (3); The linked material return mechanism comprises a connecting block (4) fixedly arranged on one side of the electric valve (3), a telescopic rod (5) is welded to one side of the connecting block (4), and a telescopic electric cylinder (6) is fixedly mounted on one end of the telescopic rod (5); One end of the telescopic electric cylinder (6) is fixedly connected to a socket block (7), and the inner wall of the socket block (7) is threadedly connected to a screw rod (8), and the outer wall of the socket block (7) is slidably connected to a support frame (9), and a reduction motor (10) is fixedly installed on the top end of the support frame (9), and the reduction motor (10) is used to drive the screw rod (8) to rotate.

2. The molybdenum powder screening device with recycled material grinding according to claim 1 is characterized in that: The connecting block (4) is fixedly connected to the return hopper (2), and the inner wall of the return hopper (2) is configured as a smooth surface.

3. The molybdenum powder screening device with recycled material grinding according to claim 1 is characterized in that: The outer wall of the sleeve block (7) is slidably connected to the inner wall of the support frame (9), and the vertical cross-section of the support frame (9) is set to be T-shaped; The reduction motor (10) is used to drive the screw (8) to rotate.

4. The molybdenum powder screening device with recycled material grinding according to claim 1 is characterized in that: Reinforcement frames (11) are welded to both sides of the screening box (1), and the vertical cross-section of the reinforcement frame (11) is concave.

5. The molybdenum powder screening device with recycled material grinding according to claim 1 is characterized in that: A grinding roller (12) is rotatably connected to the interior of the screening box (1), a rotating shaft (13) is fixedly mounted on the inner wall of the grinding roller (12), a rotating motor (14) is coaxially connected to one end of the rotating shaft (13), and the rotating motor (14) is fixedly connected to the screening box (1).

6. The molybdenum powder screening device with recycled material grinding according to claim 5, characterized in that: A screening mesh plate (21) is installed below the grinding roller (12), and the screening mesh plate (21) is fixedly connected to the screening box (1).

7. The molybdenum powder screening device with recycled material grinding according to claim 1 is characterized in that: A positioning sleeve (15) is fixedly mounted on one side of the screening box (1), and a feed cover (17) is mounted above the screening box (1). A plug-in block (16) is fixedly mounted on one side of the outer wall of the feed cover (17), and the plug-in block (16) is rotatably plugged into the positioning sleeve (15); A rotating shaft (18) is welded to the bottom end of the feed cover (17), one end of the rotating shaft (18) is coaxially connected to a transmission motor (19), a support plate (20) is installed below the transmission motor (19), and the screening box (1) and the transmission motor (19) are fixedly connected to the support plate (20).

Images