Metal powder grinding device

Abstract

The utility model provides a metal powder grinding device which comprises a grinding box with an opening in the top and supporting legs at the bottom, a top cover is detachably arranged at the top of the grinding box, a feeding hopper is further arranged at the side end of the top of the top cover, a plurality of springs are vertically arranged on the inner wall of the bottom of the grinding box, and a mounting frame is jointly arranged at the tops of the springs. The device comprises a feeding pipe, a through hole, a vibration motor and vertical plates, and an adjusting motor, a connecting shaft and a screening and filtering cylinder are transversely arranged on one vertical plate; the grinding device comprises a mounting shaft, a driving module, a grinding disc and a grinding groove, and the bottom of the grinding groove is provided with a discharging opening matched with the screening and filtering cylinder. According to the metal powder grinding device disclosed by the utility model, not only can the basic requirement of grinding crushed metal materials be met, but also the ground metal powder can be sieved, and the condition that the ground metal powder is not sieved thoroughly can be avoided, so that the use requirements of people can be fully met.

Description

Technical Field

[0001] This utility model belongs to the field of metal powder processing technology, and specifically relates to a metal powder grinding device. Background Technology

[0002] After being crushed, metal is further processed by a grinding device to obtain metal powder. While existing metal powder grinding devices can meet the basic requirements for grinding metal scraps and can sieve the crushed metal powder to separate large, incompletely ground particles, the sieving structure typically uses an inclined screen. Powder passing through the screen openings is the fully ground small particle, while the larger, incompletely ground particles slide down to the lower side of the screen. This sliding sieving method easily causes some small particles to be caught by larger particles or to slide down due to inertia, preventing them from fully passing through the screen openings and being properly sieved. Therefore, incomplete sieving and mis-sieving are common problems.

[0003] For example, utility model patent CN211915513U discloses a metal powder grinding device for cemented carbide production. In the technical solution of this patent document, a screening device is provided at the bottom of the mounting block. The screening device includes a screening box, a coarse filter screen, a fine filter screen, a guide hopper, a discharge pipe, two distribution ports, two collection hoppers, and two distribution pipes. The screening box is fixedly installed at the bottom of the mounting block, and the top of the screening box is open. The coarse filter screen is fixedly installed on the inner wall of the screening box and is installed at an angle. The fine filter screen is fixedly installed on the inner wall of the screening box and is installed at an angle, located below the coarse filter screen. During the screening process of the ground metal powder, some small particles of powder are easily trapped by large particles of metal powder or slide down due to their own inertia, making it impossible to pass through the filter holes of the filter screen for screening. Therefore, it cannot fully meet people's needs. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a metal powder grinding device that not only meets the basic requirements for grinding metal scraps, but also performs sieving of the ground metal powder, avoiding incomplete sieving of the ground metal powder, thus more fully meeting people's usage needs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a metal powder grinding device, including a grinding box with an open top and a supporting leg at the bottom, a top cover detachably provided on the top of the grinding box, a feeding hopper provided on the top side of the top cover, multiple springs vertically arranged on the inner wall of the bottom of the grinding box, a mounting frame provided on the top of the multiple springs, a feeding hopper provided on the mounting frame, a feeding pipe passing through the bottom of the feeding hopper and a through hole adapted to the feeding pipe provided at the bottom of the grinding box, a vibrating motor provided on the outer wall of the feeding hopper, vertical plates provided on the left and right sides of the top of the mounting frame, an adjusting motor horizontally arranged on one vertical plate, a connecting shaft rotatably arranged on the other vertical plate, and a filter cylinder provided between the output shaft of the adjusting motor and the connecting shaft;

[0006] A vertically extending and rotatable mounting shaft is installed on the top cover. A drive module for rotating the mounting shaft is installed on the top cover. A conical grinding disc, which is larger at the top and smaller at the bottom, is installed at the lower end of the mounting shaft. A grinding groove adapted to the grinding disc is installed on the inner side wall of the middle part of the grinding box. A discharge port adapted to the filter cylinder is installed at the bottom of the grinding groove.

[0007] As a further improvement of this utility model, the drive module includes a drive motor mounted on the top cover, a drive pulley mounted on the output shaft of the drive motor, a driven pulley mounted on the upper end of the mounting shaft, and a transmission belt mounted on both the drive pulley and the driven pulley.

[0008] As a further improvement of this utility model, the top of the grinding disc is also provided with a cone-shaped anti-drop hopper that is smaller at the top and larger at the bottom.

[0009] As a further improvement of this utility model, the bottom of the filter cylinder is also provided with a stirring motor whose output shaft extends into the inside of the filter cylinder. The output shaft of the stirring motor is provided with a stirring shaft, and the stirring shaft is provided with stirring blades that are compatible with the filter cylinder.

[0010] As a further improvement of this utility model, a guide cylinder is vertically arranged on the inner wall of the bottom of the grinding box, and a guide rod is also provided on the mounting frame to be inserted and connected to the guide cylinder. Through the vertical insertion and cooperation of the guide cylinder and the guide rod, the mounting frame can be made to vibrate and run smoothly in the vertical direction.

[0011] As a further improvement of this invention, a transparent observation window is also provided at the lower front of the grinding chamber. Through the transparent observation window, the user can easily view the internal condition of the grinding chamber.

[0012] As a further improvement of this utility model, the top cover is snapped and fixed to the grinding box, and the top cover is also provided with connecting bolts for screwing and fixing the grinding box, and the grinding box is provided with threaded connection holes that are compatible with the connecting bolts; the top cover is also provided with a handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Firstly, the vibration motor and spring work together to drive the hopper to vibrate vertically, so that small metal powder particles that fall into the hopper through the filter holes of the screen cylinder can leave the hopper smoothly, and large metal powder particles that are not fully ground can also leave the hopper smoothly.

[0015] Secondly, the combination of the vibrating motor and the spring can also drive the screen cylinder to vibrate, so that the screen cylinder can more fully screen the ground metal powder; and can also make the large particles of metal powder that are not fully ground and trapped in the screen cylinder leave the screen cylinder quickly and completely.

[0016] Thirdly, the stirring motor, stirring shaft and stirring blades can stir the metal powder in the filter cylinder, so that the device can screen the metal powder more quickly and thoroughly.

[0017] Fourth, the conical grinding disc and grinding groove design can effectively grind metal powder; the conical grinding disc, which is larger at the top and smaller at the bottom, can provide a larger contact area and improve grinding efficiency. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the drive module of this utility model;

[0021] Figure 3 This is a schematic diagram of the mounting shaft, grinding disc, and grinding groove of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the mounting shaft, grinding disc, grinding groove, feeding port, and anti-drop hopper of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the spring, mounting frame, hopper, guide cylinder, and guide rod of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the adjusting motor and connecting shaft of this utility model;

[0025] Figure 7 This is a schematic diagram of the feeding tube and through hole of this utility model.

[0026] In the diagram: 101. Grinding box; 102. Top cover; 103. Feed hopper; 104. Spring; 105. Mounting frame; 106. Discharge hopper; 107. Discharge pipe; 108. Through hole; 109. Vibration motor; 110. Vertical plate; 111. Adjusting motor; 112. Connecting shaft; 113. Filter cylinder; 114. Mounting shaft; 115. Grinding disc; 116. Grinding trough; 117. Discharge port; 118. Anti-fall hopper; 119. Stirring motor; 120. Stirring shaft; 121. Stirring blades; 122. Support leg; 201. Drive motor; 202. Drive pulley; 203. Driven pulley; 204. Transmission belt; 301. Guide tube; 302. Guide rod; 303. Transparent observation window; 304. Connecting bolt; 305. Handle. Detailed Implementation

[0027] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0028] like Figure 1 , 2 As shown in Figures 3, 4, and 7, a metal powder grinding device includes a grinding box 101 with an open top and a support leg 122 at the bottom. A top cover 102 is detachably mounted on the top of the grinding box 101. A feed hopper 103 is also provided on the top side of the top cover 102. Multiple springs 104 are vertically arranged on the inner wall of the bottom of the grinding box 101. A mounting frame 105 is provided on the top of the multiple springs 104. A discharge hopper 106 is provided on the mounting frame 105. The bottom of the discharge hopper 106 is... A feed pipe 107 passes through the bottom of the grinding box 101. The bottom end of the grinding box 101 is provided with a through hole 108 that matches the feed pipe 107. A vibration motor 109 is provided on the outer side wall of the feed hopper 106. Vertical plates 110 are provided on the left and right sides of the top of the mounting frame 105. An adjustment motor 111 is horizontally provided on one vertical plate 110, and a connecting shaft 112 is rotatably provided on the other vertical plate 110. A filter cylinder 113 is provided between the output shaft of the adjustment motor 111 and the connecting shaft 112.

[0029] A vertically extending and rotatably mounted mounting shaft 114 is provided on the top cover 102. A drive module for rotating the mounting shaft 114 is provided on the top cover 102. A cone-shaped grinding disc 115, which is larger at the top and smaller at the bottom, is provided at the lower end of the mounting shaft 114. A grinding groove 116, which is adapted to the grinding disc 115, is provided on the inner side wall of the middle part of the grinding box 101. A discharge port 117, which is adapted to the filter cylinder 113, is provided at the bottom of the grinding groove 116.

[0030] like Figure 2 As shown, the drive module includes a drive motor 201 mounted on the top cover 102. The output shaft of the drive motor 201 is provided with a drive pulley 202, and the upper end of the mounting shaft 114 is provided with a driven pulley 203. The drive pulley 202 and the driven pulley 203 are both provided with a transmission belt 204.

[0031] like Figure 5 , 6 As shown, the bottom of the filter cylinder 113 is also provided with a stirring motor 119 whose output shaft extends into the interior of the filter cylinder 113. The output shaft of the stirring motor 119 is provided with a stirring shaft 120, and the stirring shaft 120 is provided with stirring blades 121 that are adapted to the filter cylinder 113.

[0032] like Figure 1 , 2 As shown, the top cover 102 is snapped into and fixed to the grinding box 101. The top cover 102 is also provided with a connecting bolt 304 for screwing the grinding box 101 into place. The grinding box 101 is provided with a threaded connection hole that matches the connecting bolt 304. The top cover 102 is also provided with a handle 305. By simply snapping the top cover 102 into and fixing it to the grinding box 101, and then passing the connecting bolt 304 through the side wall of the top cover 102 and screwing it into the threaded connection hole, the top cover 102 and the grinding box 101 can be flexibly fixed together.

[0033] The worker starts the drive motor 201, which, driven by the active pulley 202, the driven pulley 203 and the transmission belt 204, causes the mounting shaft 114 and the grinding disc 115 to start rotating. Then, the metal scraps to be ground are added to the grinding box 101 through the feed hopper 103. The metal scraps fall into the grinding tank 116 and are ground in the cooperation of the grinding tank 116 and the grinding disc 115 to generate grinding powder.

[0034] The ground powder falls into the filter cylinder 113 through the feed inlet 117. Small metal powder particles pass through the sieve holes of the filter cylinder 113 and fall into the feed hopper 106, and leave the feed hopper 106 through the feed pipe 107. Large metal powder particles remain in the filter cylinder 113 because they cannot pass through the filter holes, thus achieving the screening of metal powder. At the same time, the vibration motor 109 can be started, and with the cooperation of multiple springs 104, the feed hopper 106 and the filter cylinder 113 vibrate vertically smoothly, thereby screening the metal powder in the filter cylinder 113 more quickly and thoroughly, and ensuring that the small metal powder particles falling into the feed hopper 106 can be fed smoothly. The stirring motor 119 can also be started, and the stirring shaft 120 and stirring blades 121 stir the metal in the filter cylinder 113, thereby screening the metal powder more quickly and thoroughly.

[0035] After a period of time, once a large amount of large metal powder particles have been retained in the filter cylinder 113, the feeding of metal fragments to be ground into the feed hopper 103 is stopped. Feeding is also stopped at the discharge port 117. After all the small metal powder particles in the discharge hopper 106 have been discharged, the motor 111 is adjusted to rotate the filter cylinder 113 so that the opening faces downwards. This transfers the large metal powder particles retained in the filter cylinder 113 to the discharge hopper 106 and feeds them through the discharge pipe 107. Afterwards, the filter cylinder 113 can be returned to the state of having the opening facing upwards. After all the large metal powder particles have been discharged, the grinding of the metal fragments continues.

[0036] According to another embodiment of the present invention, such as Figure 3 , 4 As shown, the top of the grinding disc 115 is also provided with a conical hopper 118 that is smaller at the top and larger at the bottom to prevent metal scraps from falling onto the top of the grinding disc 115.

[0037] According to another embodiment of the present invention, such as Figure 5 As shown, a guide sleeve 301 is vertically arranged on the inner bottom wall of the grinding box 101, and a guide rod 302 that is inserted and connected to the guide sleeve 301 is also provided on the mounting frame 105. During the vertical vibration operation of the mounting frame 105 and the feeding hopper 106, the guide sleeve 301 and the guide rod 302 can be vertically inserted and engaged, thereby enabling the mounting frame 105 and the feeding hopper 106 to operate vertically smoothly and preventing friction between the feeding pipe 107 and the side wall of the through hole 108.

[0038] According to another embodiment of the present invention, such as Figure 1As shown, a transparent viewing window 303 is also provided at the lower front end of the grinding chamber 101. Through the transparent viewing window 303, the user can easily view the internal condition of the grinding chamber 101.

[0039] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A metal powder grinding apparatus, comprising a grinding box (101) with an open top and a support leg (122) at the bottom, wherein a top cover (102) is detachably provided on the top of the grinding box (101), and a feed hopper (103) is provided on the top side of the top cover (102), characterized in that: Multiple springs (104) are vertically arranged on the inner wall of the bottom of the grinding box (101). The top of the multiple springs (104) is provided with a mounting frame (105). A feeding hopper (106) is provided on the mounting frame (105). A feeding pipe (107) passing through the bottom of the grinding box (101) is provided at the bottom of the feeding hopper (106). A through hole (108) adapted to the feeding pipe (107) is provided at the bottom of the grinding box (101). A vibration motor (109) is provided on the outer wall of the feeding hopper (106). Vertical plates (110) are provided on the left and right sides of the top of the mounting frame (105). An adjusting motor (111) is horizontally arranged on one vertical plate (110). A connecting shaft (112) is rotatably arranged on the other vertical plate (110). A filter cylinder (113) is provided between the output shaft of the adjusting motor (111) and the connecting shaft (112). A vertically extending and rotatably mounted mounting shaft (114) is provided on the top cover (102). A drive module for rotating the mounting shaft (114) is provided on the top cover (102). A cone-shaped grinding disc (115) with a larger upper part and a smaller lower part is provided at the lower end of the mounting shaft (114). A grinding groove (116) adapted to the grinding disc (115) is provided on the inner side wall of the middle part of the grinding box (101). A discharge port (117) adapted to the filter cylinder (113) is provided at the bottom of the grinding groove (116).

2. The metal powder grinding apparatus as described in claim 1, characterized in that: The drive module includes a drive motor (201) mounted on the top cover (102), a drive pulley (202) is mounted on the output shaft of the drive motor (201), a driven pulley (203) is mounted on the upper end of the mounting shaft (114), and a transmission belt (204) is mounted on both the drive pulley (202) and the driven pulley (203).

3. The metal powder grinding apparatus as described in claim 2, characterized in that: The grinding disc (115) is also provided with a cone-shaped anti-drop hopper (118) that is smaller at the top and larger at the bottom.

4. The metal powder grinding apparatus as described in claim 3, characterized in that: The bottom of the filter cylinder (113) is also provided with a stirring motor (119) whose output shaft extends into the filter cylinder (113). The output shaft of the stirring motor (119) is provided with a stirring shaft (120), and the stirring shaft (120) is provided with stirring blades (121) that are compatible with the filter cylinder (113).

5. The metal powder grinding apparatus as described in claim 4, characterized in that: The grinding box (101) is also provided with a guide tube (301) vertically on the bottom inner wall, and the mounting frame (105) is also provided with a guide rod (302) that is plugged into the guide tube (301).

6. The metal powder grinding apparatus as described in claim 5, characterized in that: The grinding box (101) is also provided with a transparent observation window (303) at the lower front end.

7. The metal powder grinding apparatus as described in claim 6, characterized in that: The top cover (102) is snapped and fixed to the grinding box (101). The top cover (102) is also provided with connecting bolts (304) for screwing and fixing the grinding box (101). The grinding box (101) is provided with threaded connection holes that are compatible with the connecting bolts (304). The top cover (102) is also provided with a handle (305).

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