Powder screening device

Abstract

The utility model discloses a powder screening device which comprises a machine frame, the machine frame comprises a base and a door-shaped frame, a cylinder is fixed above the base, the upper end of the cylinder is connected with a supporting ring through a plurality of springs, a lower screening drum is detachably connected above the supporting ring, an upper screening drum is detachably connected above the lower screening drum, and a screening net is arranged at the bottom end of the upper screening drum. A rotary motor is fixed to the upper end of the door-shaped frame, an output shaft of the rotary motor penetrates through the door-shaped frame and is connected with an electric push rod, a round block is connected to the bottom end of a telescopic rod of the electric push rod, stirring rods are connected to the outer side of the round block, and a fixed scraping strip is connected to the bottom of each stirring rod; a vibration motor is arranged on the cylinder, and an inspection door hole is formed in one side of the cylinder; through the arrangement of the rack, the spring, the supporting ring, the lower screen drum, the upper screen drum and the screen mesh, after screening is completed, the upper screen drum and the lower screen drum can be detached so that large-particle powder in the upper screen drum and fine powder in the lower screen drum can be poured out, and material taking is convenient.

Description

A powder screening device Technical Field

[0001] This utility model belongs to the field of powder screening technology, and in particular relates to a powder screening device. Background Technology

[0002] When making alloys, the alloy powder is sieved to obtain alloy powder that meets the requirements.

[0003] Regarding alloy powder sieves, according to the prior art, a utility model patent with Chinese patent authorization announcement number CN205380050U discloses a powder vibrating sieve machine, including a frame a, a sieve hopper c connected to the frame a via a spring b, a feeding hopper d above the sieve hopper c, and a screen e inside the sieve hopper d.

[0004] In the existing technology, a powder screening device with a similar technical solution as described above has been found to have some shortcomings in actual implementation: after the powder screening is completed, the large powder particles left behind are not easy to remove from the sieve hopper, which makes the operation inconvenient. Summary of the Invention

[0005] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide a powder screening device that solves the problem that after the powder screening is completed, the large powder particles left behind are inconvenient to remove from the screen hopper, and the operation is inconvenient.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a powder screening device, including a frame, the frame including a base and a portal frame above the base, a cylinder fixed above the base, a support ring connected to the upper end of the cylinder by multiple springs, a lower screen cylinder detachably connected above the support ring, an upper screen cylinder detachably connected above the lower screen cylinder, a screen mesh provided at the bottom end of the upper screen cylinder, a rotary motor fixed at the upper end of the portal frame, the output shaft of the rotary motor passing through the portal frame and connected to an electric push rod, a circular block connected to the bottom end of the telescopic rod of the electric push rod, three stirring rods connected to the outside of the circular block, a fixed scraper connected to the bottom of each stirring rod, an opening provided on one side of both the lower and upper screen cylinders, an openable door provided on the opening, a vibration motor provided on the cylinder, and an inspection door provided on one side of the cylinder.

[0007] As a further improvement of this utility model, the upper screen cylinder and the lower screen cylinder are fixed by fastening clamps.

[0008] As a further improvement of this utility model, the support ring and the lower screen cylinder are fixedly connected by a fastening clamp.

[0009] As a further improvement of this utility model, the upper end of the upper screen cylinder is provided with two openable semi-circular covers, which together form a circular cover. The two semi-circular covers are symmetrically provided with two semi-circular holes in the middle, through which the telescopic rod of the electric push rod can pass. The two semi-circular covers are fastened to the upper screen cylinder by fastening clamps.

[0010] As a further improvement of this utility model, one of the semi-circular covers is provided with a feeding hole, and a small opening is connected to the feeding hole.

[0011] As a further improvement of this utility model, the fastening clamp includes a retaining ring, and each end of the retaining ring is provided with a fixing plate, and the two fixing plates are locked together by fastening bolts.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. A frame, springs, and support rings are provided, with a lower screen cylinder detachably connected to the support rings. An upper screen cylinder is detachably connected to the upper end of the lower screen cylinder. A screen is provided at the bottom of the upper screen cylinder. Both the lower and upper screen cylinders have openings on one side, with doors that can be opened. During sieving, powder can be placed into the upper screen cylinder, the vibrating motor starts vibrating, and the screen can sieve the powder. Fine powder is sieved into the lower screen cylinder, while large particles remain on the screen, thus completing the sieving of the alloy powder.

[0014] After screening, the upper and lower screen cylinders can be disassembled to pour out the large particles in the upper screen cylinder and the fine powder in the lower screen cylinder for easy material handling.

[0015] Alternatively, without disassembling the upper and lower sieve cylinders, you can open the door on the upper sieve cylinder, rotate the stirring rod, and use the auxiliary brush to remove large particles of powder from the door. To remove fine powder from the lower sieve cylinder, you can disassemble the upper sieve cylinder, open the door, and remove the powder. Alternatively, without opening the door on the lower sieve cylinder, you can turn on the vibration motor, allowing the powder to fall from the door through vibration. This method is suitable for various material handling methods and is simple and convenient.

[0016] 2. By fixing the upper and lower screen cylinders with fastening clamps, and connecting the support ring and the lower screen cylinder with fastening clamps, and fastening the two semi-circular covers to the upper screen cylinder with fastening clamps, the fastening clamps can be adjusted to lock the upper and lower screen cylinders, the support ring and the lower screen cylinder, and the semi-circular covers to the upper screen cylinder, which facilitates installation and disassembly.

[0017] 3. By setting two semi-circular covers, the upper screen cylinder can be covered to prevent powder from overflowing and reduce dust pollution. The feeding hole is set on the semi-circular cover, so the material can be added through the feeding hole without removing the semi-circular cover.

[0018] 4. By setting the fastening clamp as a structure of a retaining ring, a fixing plate, and a locking bolt, the retaining ring can be tightened by turning the locking bolt. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 is a schematic diagram of the existing technology;

[0021] Figure 2 is a schematic diagram of the structure of this utility model;

[0022] Figure 3 is a schematic diagram of the structure of the two semi-circular caps;

[0023] Figure 4 is a schematic diagram of the fastening clamp structure;

[0024] Figure 5 is an enlarged view of point A in Figure 4;

[0025] In the diagram: 1. Frame; 101. Base; 102. Portal frame; 2. Cylinder; 3. Spring; 4. Support ring; 5. Lower screen cylinder; 6. Upper screen cylinder; 7. Screen; 8. Rotary motor; 9. Electric push rod; 10. Round block; 11. Stirring rod; 12. Opening; 13. Door opening; 14. Vibrating motor; 15. Inspection door hole; 16. Fastening clamp; 161. Snap ring; 162. Fixing plate; 163. Fastening bolt; 17. Semi-circular cover; 18. Semi-circular hole; 19. Feeding hole; 20. Small opening cover. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to Figures 2-5. For clarity, only the structures related to the inventive features of the present invention are shown in the figures.

[0027] For ease of description, a coordinate system is defined as shown in Figure 2, with the left and right directions as the horizontal direction, the front and back directions as the vertical direction, and the up and down directions as the vertical direction.

[0028] This utility model discloses a powder screening device. Referring to FIG2, a powder screening device includes a frame 1, the frame 1 including a base 101 and a portal frame 102 above the base 101. A cylinder 2 is fixed above the base 101, and a support ring 4 is connected to the upper end of the cylinder 2 by multiple springs 3. A lower screen cylinder 5 is detachably connected above the support ring 4. The support ring 4 and the lower screen cylinder 5 are fixedly connected by fastening clamps 16. An upper screen cylinder 6 is detachably connected above the lower screen cylinder 5. The upper screen cylinder 6 and the lower screen cylinder 5 are fixed by fastening clamps 16. A screen 7 is fixed to the bottom end of the upper screen cylinder 6. A rotating device is fixed to the upper end of the portal frame 102. The output shaft of the rotary motor 8 passes through the gate frame 102 and is connected to the electric push rod 9. The bottom end of the telescopic rod of the electric push rod 9 is connected to a round block 10. Three stirring rods 11 are connected to the outside of the round block 10. Each stirring rod 11 is connected to a fixed scraper at its bottom. The lower screen cylinder 5 and the upper screen cylinder 6 are provided with an opening 12 on one side. The bottom of the lower screen cylinder 5 is gradually inclined downward from the side away from the opening 12 to the side closer to the opening 12 to facilitate the output of powder. The opening 12 is provided with an openable door 13. The cylinder 2 is provided with a vibration motor 14. The cylinder 2 is provided with an inspection door hole 15 on one side.

[0029] As shown in Figures 2 and 3, the upper screen cylinder 6 has two openable semi-circular covers 17 at its upper end, forming a circular cover. Two semi-circular holes 18 are symmetrically arranged in the center of each cover, allowing the telescopic rod of the electric push rod 9 to pass through. The two semi-circular covers 17 are fastened to the upper screen cylinder 6 by fastening clamps 16. By fixing the upper screen cylinder 6 and the lower screen cylinder 5 with the fastening clamps 16, and by connecting the support ring 4 and the lower screen cylinder 5 with the fastening clamps 16, and by fastening the two semi-circular covers 17 to the upper screen cylinder 6 with the fastening clamps 16, the fastening clamps 16 can be adjusted to lock the upper screen cylinder 6 and the lower screen cylinder 5, lock the support ring 4 and the lower screen cylinder 5, and lock the semi-circular covers 17 to the upper screen cylinder 6, facilitating installation and disassembly.

[0030] Additionally, as shown in Figure 3, one of the semi-circular covers 17 is provided with a feeding hole 19, and a small opening cover 20 is connected to the feeding hole 19. By providing two semi-circular covers 17, they can be placed on the upper screen cylinder 6 to prevent powder from overflowing and reduce dust pollution. Since the feeding hole 19 is provided on the semi-circular cover 17, the material can be added through the feeding hole 19 without removing the semi-circular cover 17.

[0031] As shown in Figures 4 and 5, the fastening clamp 16 includes a retaining ring 161. Each end of the retaining ring 161 is provided with a fixing plate 162. The two fixing plates 162 are locked together by fastening bolts 163. Therefore, by turning the locking bolts, the retaining ring 161 can be locked and tightened.

[0032] The implementation principle and effect of this utility model are as follows: By setting a frame 1, a spring 3, and a support ring 4, a lower screen cylinder 5 is detachably connected to the support ring 4, and an upper screen cylinder 6 is detachably connected to the upper end of the lower screen cylinder 5. A screen 7 is provided at the bottom of the upper screen cylinder 6. An opening 12 is provided on one side of both the lower screen cylinder 5 and the upper screen cylinder 6. An openable door 13 is provided on the opening 12. During screening, the powder can be put into the upper screen cylinder 6, the vibration motor 14 starts to vibrate, and the screen 7 can screen the powder. The fine powder is screened into the lower screen cylinder 5, and the large powder particles remain on the screen 7, thus completing the screening of the alloy powder.

[0033] After screening, the upper screen cylinder 6 and the lower screen cylinder 5 can be disassembled to pour out the large particles of powder in the upper screen cylinder 6 and the fine powder in the lower screen cylinder 5 for easy material handling.

[0034] Alternatively, without disassembling the upper sieve cylinder 6 and the lower sieve cylinder 5, the door 13 on the upper sieve cylinder 6 can be opened, and the stirring rod 11 can be rotated. The auxiliary brush can then remove large particles of powder from the door 13. When removing fine powder from the lower sieve cylinder 5, the upper sieve cylinder 6 can be disassembled, the door 13 opened, and the powder removed from the lower sieve cylinder 5. Alternatively, the door 13 on the lower sieve cylinder 5 can be left unopened, and the vibration motor 14 can be turned on. The powder will then vibrate and fall from the door 13. This method can accommodate various material handling methods and is simple and convenient.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. A powder screening device, comprising a frame, characterized in that: The frame includes a base and a portal frame above the base. A cylinder is fixed above the base, and a support ring is connected to the upper end of the cylinder by multiple springs. A lower screen cylinder is detachably connected above the support ring, and an upper screen cylinder is detachably connected above the lower screen cylinder. A screen is provided at the bottom of the upper screen cylinder. A rotary motor is fixed at the upper end of the portal frame. The output shaft of the rotary motor passes through the portal frame and is connected to an electric push rod. A circular block is connected to the bottom of the telescopic rod of the electric push rod. Three stirring rods are connected to the outside of the circular block. A fixed scraper is connected to the bottom of each stirring rod. An opening is provided on one side of both the lower and upper screen cylinders, and an openable door is provided on the opening. A vibration motor is provided on the cylinder, and an inspection door is provided on one side of the cylinder.

2. The powder screening device according to claim 1, characterized in that: The upper and lower screen cylinders are fixed together by fastening clamps.

3. A powder screening device according to claim 1, characterized in that: The support ring and the lower screen cylinder are fixedly connected by fastening clamps.

4. The powder screening device according to claim 1, characterized in that: The upper end of the upper screen cylinder is provided with two openable semi-circular covers, which together form a circular cover. The two semi-circular covers are symmetrically provided with two semi-circular holes in the middle, through which the telescopic rod of the electric push rod can pass. The two semi-circular covers are fastened to the upper screen cylinder by fastening clamps.

5. A powder screening apparatus according to claim 4, wherein: One of the semi-circular covers has a feeding hole, and a small opening is connected to the feeding hole.

6. A powder screening device according to any one of claims 2-5, characterized in that: The fastening clamp includes a retaining ring, and each end of the retaining ring is provided with a fixing plate, and the two fixing plates are locked together by fastening bolts.

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