CN219377879U - Metal powder screening machine - Google Patents

Abstract

The utility model relates to a screening machine's field especially relates to a metal powder screening machine, and it includes casing, screen cloth and shield, and the casing upper surface is equipped with the feed port that is used for supplying the metal powder to pour into, and the lower surface of shield is used for laminating the casing upper surface, and the shield lower surface is connected with the inserted bar, and inserted bar fixedly connected with gag lever post has the contained angle between gag lever post and the inserted bar; the upper surface of the shell is provided with a slot for inserting the rod and the limiting rod, the slot is provided with a limiting groove for sliding and embedding the limiting rod along the circumferential groove wall of the feeding hole, and when the limiting rod is embedded into the limiting groove, the groove wall of the limiting groove and the limiting rod form a friction pair. This application shield reduces the probability that casing outside air contacted with the inside metal powder of casing to reduce the probability that metal powder was oxidized, thereby improve the yield, and the shield passes through gag lever post embedding or breaks away from the spacing groove and realize the shield and be connected or separate with the casing, it is comparatively convenient.

Description

Metal powder screening machine

Technical Field

The application relates to the field of sieving machines, in particular to a metal powder sieving machine.

Background

The screening machine has very wide application, and relates to screening of coarse cereal grain sizes in daily life and metal powder in industrial application. The metal is oxidized in the air, and particularly, the metal powder has smaller volume, so that the metal powder is more easily oxidized if the surrounding air is sufficient, and the yield is affected.

At present, common screening machine includes the casing and is equipped with the screen cloth in equidimension hole, and the screen cloth layering is located the casing to carry out multistage screening to the metal powder, the free fall behind the metal powder screening. The upper end of the screening machine is often arranged in an open tent shape so as to facilitate people to pour the metal powder, but when people pour the metal powder into the screen, the powder may fly upwards to cause waste; and after the metal powder is poured, the metal powder above the screen is continuously exposed to the air, so that the metal powder is possibly oxidized, and the yield of the screened metal powder is affected.

Disclosure of Invention

In order to improve the yield of metal powder after sieving, the application provides a metal powder sieving machine.

The application provides a metal powder screening machine adopts following technical scheme:

the utility model provides a metal powder screening machine, includes casing and screen cloth, the screen cloth is located in the casing, still include the shield that is located the casing top, the casing upper surface is equipped with the feed port that is used for supplying the metal powder to pour into, the lower surface of shield is used for laminating the casing upper surface, and shield lower surface fixedly connected with inserted bar, inserted bar fixedly connected with gag lever post, there is the contained angle between gag lever post and the inserted bar; the shell upper surface is equipped with the slot that is used for supplying inserted bar and gag lever post embedding, the slot is followed the cell wall department of feed hole circumference is equipped with the spacing groove that is used for supplying the gliding embedding of gag lever post, and the gag lever post embedding when the spacing groove, the cell wall of spacing groove and gag lever post constitute friction pair.

Through adopting above-mentioned technical scheme, after metal powder pours into the casing, through making inserted bar and gag lever post imbed in the slot, until the gag lever post aligns the spacing inslot after, rotatory shield for the gag lever post imbeds to the spacing inslot and constitutes friction pair, reduces the shield along the axially and circumference gliding probability of feed port, in order to improve the shield and connect in the stability of casing. Moreover, the dust cover can reduce the probability of oxidation of the metal powder in the shell and the outside air of the shell, and reduce the probability of the foreign matters such as the outside dust entering the shell. After the screening of the metal powder is finished, the yield of the metal powder after screening is improved. Simultaneously, when opening the shield, through rotatory shield for the gag lever post breaks away from the spacing groove back edge slot and pulls out, and the people of being convenient for realize the connection of shield and casing, in order to improve the efficiency of connecting and dismantling the shield. And the probability of flying of the metal powder can be avoided, so that the waste of the metal powder is reduced, and the resource utilization rate is improved.

Preferably, a first sealing ring is arranged between the shell and the dust cover for sealing.

Through adopting above-mentioned technical scheme, increase the leakproofness between casing and the shield, further reduce the inside metal powder of casing by the probability of oxidation to improve the yield of screening back metal powder.

Preferably, the upper surface of the shell is provided with a first annular groove coaxial with the feeding hole, the first annular groove is positioned between the slot and the feeding hole, the first annular groove is used for embedding the first sealing ring, and two sides of the first sealing ring along the axial direction of the feeding hole are used for propping against the dust cover and the bottom of the first annular groove.

Through adopting above-mentioned technical scheme, carry out spacingly to first sealing washer through the cell wall of first annular to improve the stability of first sealing washer, thereby improve the leakproofness between casing and the shield. And the first annular groove is positioned between the slot and the feeding hole, so that the probability of metal powder entering the slot and the limiting groove is reduced, and the metal powder resource is saved. Meanwhile, the probability of occurrence of unsmooth rotation of the dust cover due to the fact that powder enters the slot and the limiting slot is reduced.

Preferably, the first annular groove comprises a narrow groove and a wide groove, the narrow groove is coaxially arranged on the upper surface of the shell, the wide groove is coaxially arranged at the bottom of the narrow groove, and the width of the wide groove along the radial direction of the feeding hole is larger than that of the narrow groove along the radial direction of the feeding hole; the first sealing ring is elastic, the first sealing ring is embedded into the narrow groove and the wide groove, and the groove wall of the wide groove, which is away from the upper surface of the shell, is abutted against the first sealing ring.

Through adopting above-mentioned technical scheme for have elastic first sealing washer embedding to narrow groove and wide inslot, carry out spacingly to the sealing washer through the cell wall in wide groove, reduce the probability that the sealing washer breaks away from the narrow groove is automatic, with the stability that improves first sealing washer. The dust cover rotates for a long time and possibly causes abrasion to the first sealing ring, at the moment, the first sealing ring can be taken out for replacement, and a new first sealing ring is plugged into the narrow groove and the wide groove.

Preferably, the device further comprises a control shaft and a support plate positioned above the screen, a storage cavity for storing metal powder is formed between the support plate and the dust cover, the support plate is fixedly connected to the inner wall of the shell, and the support plate is provided with a through hole; the upper surface of the supporting plate is in sliding butt joint with a baffle plate, the baffle plate is provided with a perforation, the outer wall of the shell is provided with a control hole, the control hole is communicated with the inside of the shell, one end of a control shaft is fixedly connected with the baffle plate, and the other end of the control shaft is in sliding embedding with the control hole and is attached to the wall of the control hole; the baffle is equipped with first butt face and second butt face respectively along self slip direction's both sides, when first butt face butt in shells inner wall, through-hole intercommunication perforation, when second butt face butt in shells inner wall, the backup pad covers the through-hole.

Through adopting above-mentioned technical scheme, can store metal powder in the storage chamber, people control the slip of baffle through slip control shaft, when sliding to the through-hole intercommunication perforation, the metal powder in the storage chamber can free fall, when sliding to the second butt face, the backup pad covers the through-hole for metal powder can not continue to fall. People can store more metal powder in the storage cavity at one time without frequently opening the dust cover, so that the probability of oxidation of the metal powder during the process of opening the dust cover is reduced, and the yield of the screened metal powder is improved. And people can control the flow of the through holes and the perforations according to the sliding distance of the control shaft, so that the probability of large impact on the screen due to excessive metal powder is reduced, and the long-term use of the screen is facilitated.

Preferably, the through hole is in a frustum shape, and the diameter of the through hole gradually decreases from top to bottom to be equal to the diameter of the through hole.

Through adopting above-mentioned technical scheme, when the through-hole intercommunication perforation, the diameter of perforation top is greater than the diameter of through-hole for the metal powder in the storage chamber can be more through the perforation circulation to the through-hole. The area of the upper surface plane of the baffle plate is reduced, so that the probability that the metal powder is blocked by the baffle plate is reduced, and the metal powder can flow to the screen mesh conveniently, and screening is facilitated.

Preferably, a second annular groove is formed in the groove wall of the control hole, and a second sealing ring is embedded in the second annular groove and abuts against the groove wall of the control hole and the control shaft.

Through adopting above-mentioned technical scheme, the baffle is located the bottom of storing the chamber, when there is metal powder in the storing chamber, through the probability that the second sealing washer runs off between the gap of metal powder from control shaft and control hole cell wall in order to practice thrift the metal powder resource.

Preferably, the baffle comprises a plate body and two buffer blocks, the buffer blocks are elastic, the two buffer blocks are fixedly connected to two sides of the plate body along the sliding direction of the plate body, and the first abutting surface and the second abutting surface are respectively arranged on the surfaces, deviating from the two buffer blocks, of the baffle body.

Through adopting above-mentioned technical scheme, the buffer block has elasticity to reduce the probability that baffle and shells inner wall rigidity touched, in order to improve the life of baffle.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the probability of contact between the air outside the shell and the metal powder inside the shell is reduced by the dust cover, so that the probability of oxidation of the metal powder is reduced, the yield is improved, and the dust cover is conveniently connected or separated with the shell by embedding or separating the dust cover into or from the limiting groove through the limiting rod;

2. the arrangement of the first sealing ring and the second sealing ring not only improves the sealing performance of the storage cavity, but also can reduce the loss probability of metal powder in the storage cavity so as to improve the resource utilization rate;

3. through the setting of baffle and backup pad to control through-hole and fenestrate flow, reduce the excessive probability that causes the impact to the screen cloth and influence screen cloth life to the metal powder.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a cross-sectional view of an embodiment of the present application.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a broken view of an embodiment of the present application.

Fig. 5 is an enlarged view at B in fig. 4.

Reference numerals illustrate: 1. a base; 2. a spring; 3. a housing; 31. an upper case; 311. a third ring groove; 3111. a third seal ring; 312. a control hole; 3121. a second ring groove; 3122. a second seal ring; 313. a feed hole; 314. a first ring groove; 3141. a narrow groove; 3142. a wide groove; 3143. a first seal ring; 315. a slot; 316. a limit groove; 317. a storage chamber; 32. a lower case; 321. a screen tray; 322. a vibration motor; 323. a screen; 324. a discharge port; 4. a support plate; 41. a through hole; 5. a baffle; 51. a plate body; 511. perforating; 513. a control shaft; 512. a hand-held disc; 52. a buffer block; 521. a first abutment surface; 522. a second abutment surface; 6. an avoidance ring; 7. a dust cover; 71. a rod; 72. a limit rod; 73. a rotating shaft; 74. and (5) a knob.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

Referring to fig. 1, an embodiment of the present application discloses a metal powder sieving machine, which includes a base 1, a spring 2, and a housing 3. The housing 3 includes an upper case 31 and a lower case 32, the base 1 is placed on the ground, the upper case 31 and the lower case 32 are both cylindrical, and the lower end of the lower case 32 is connected to the base 1 through a spring 2.

Referring to fig. 1 and 2, a screen plate 321 is coaxially and fixedly connected to the inside of the lower case 32, a vibration motor 322 is fixedly connected to the lower end of the screen plate 321, and the vibration motor 322 drives the screen plate 321 and the lower case 32 to vibrate.

Referring to fig. 2, two screens 323 are fixedly connected to the inner wall of the lower case 32, a space exists between the two screens 323, and the sizes of gaps between the two screens 323 are different to screen metal powder of different sizes. The lower shell 32 is provided with three discharge ports 324, the three discharge ports 324 are respectively positioned below two screens 323, in the middle of the two screens 323 and above the two screens 323, and the three discharge ports 324 are used for vibrating out metal powder with different sizes.

The lower end of the upper case 31 is fixedly coupled to the upper end of the lower case 32 by a bolt coaxially so that the upper case 31 can be detached from the lower case 32. The lower surface of the upper shell 31 is coaxially provided with a third annular groove 311, a third sealing ring 3111 is embedded in the third annular groove 311, and two ends of the third sealing ring 3111 along the axial direction of the upper shell 31 respectively abut against the bottom of the third annular groove 311 and the upper surface of the lower shell 32, so that the upper shell 31 and the lower shell 32 are sealed.

The metal powder sieving machine further comprises a supporting plate 4, wherein the supporting plate 4 is a circular plate, the supporting plate 4 is integrally formed on the inner peripheral wall of the upper shell 31 and is sealed, and the supporting plate 4 and the upper shell 31 are coaxial and are positioned at the lower end of the upper shell 31. The support plate 4 is provided with a plurality of through holes 41, and the through holes 41 penetrate through the support plate 4 along the axial direction of the support plate 4. The upper surface of the support plate 4 is slidably abutted with a baffle 5, and the baffle 5 includes a plate body 51 and two buffer blocks 52. Specifically, the plate 51 is slidably abutted against the upper surface of the support plate 4, and the baffle 5 is also a circular plate, but the diameter of the plate 51 is smaller than the diameter of the support plate 4. The plate 51 is provided with a plurality of perforations 511, the number of perforations 511 being equal to the number of through holes 41. The through holes 511 are in the shape of an inverted cone, i.e., the cross section of the through holes 511 is circular, and the cross section of the through holes 511 gradually decreases from top to bottom, so that the diameter of the through holes 511 gradually decreases from top to bottom to be equal to the diameter of the through holes 41.

Referring to fig. 2, the buffer blocks 52 have elasticity, and the two buffer blocks 52 are fixedly connected to two sides of the sliding direction of the plate 51, in this embodiment, the buffer blocks 52 are rubber blocks; in other embodiments, the buffer block 52 may be a silicone block.

The surfaces of the two buffer blocks 52 facing away from each other are respectively provided with a first abutting surface 521 and a second abutting surface 522, when the first abutting surface 521 abuts against the inner wall of the upper shell 31, the through hole 41 is coaxially communicated with the through hole 511, and when the second abutting surface 522 abuts against the inner wall of the upper shell 31, the supporting plate 4 covers the through hole 511, and as the upper surface of the supporting plate 4 abuts against the plate body 51, the metal powder above the baffle 5 cannot pass through the through hole 511.

A control shaft 513 is fixedly connected to one side of the plate body 51 along the sliding direction thereof, and the control shaft 513 is located above the buffer block 52. The outside of the upper shell 31 is provided with a control hole 312 communicated with the inside of the upper shell 31, one end of a control shaft 513, which is away from the plate body 51, extends out of the control hole 312 and is coaxially and fixedly connected with a handheld disc 512, and the diameter of the handheld disc 512 is larger than that of the control shaft 513 so as to facilitate people to grasp the handheld rod. The outer wall of the control shaft 513 is used for being in sliding fit with the inner wall of the control hole 312, the inner wall of the control hole 312 is coaxially provided with a second annular groove 3121, a second sealing ring 3122 is embedded in the second annular groove 3121, the outer periphery of the second sealing ring 3122 abuts against the inner wall of the control hole 312, and the inner periphery of the second sealing ring 3122 abuts against the control shaft 513.

The metal powder sieving machine further comprises an avoidance ring 6, and the avoidance ring 6 is arranged on the upper surface of the plate body 51. The outer circumference of the avoidance ring 6 is attached to the inner circumferential wall of the upper case 31, and the inner diameter of the avoidance ring 6 is larger than the diameter of the plate body 51, so that the probability that metal powder entering from the feeding hole 313 flows between the outer circumference of the plate body 51 and the inner wall of the upper case 31 is reduced, and the probability that the plate body 51 cannot slide due to the fact that the metal powder enters between the outer circumference and the inner wall of the upper case 31 is reduced, so that the plate body 51 can slide normally.

Referring to fig. 2 and 3, the upper surface of the upper case 31 is coaxially provided with a feed hole 313 communicating with the inside of the upper case 31, and the diameter of the feed hole 313 is equal to the inner diameter of the upper case 31. The upper surface of the upper shell 31 is coaxially provided with a first annular groove 314, specifically, the first annular groove 314 includes a narrow groove 3141 and a wide groove 3142, the narrow groove 3141 is arranged on the upper surface of the upper shell 31, the wide groove 3142 is arranged at the bottom of the narrow groove 3141, and the width of the wide groove 3142 along the radial direction of the upper shell 31 is greater than the width of the narrow groove 3141 along the radial direction of the upper shell 31, so that the cross section of the first annular groove 314 is in an inverted T shape. The narrow groove 3141 and the wide groove 3142 are embedded with a first sealing ring 3143, and two sides of the first sealing ring 3143 embedded in the wide groove 3142 along the axial direction of the upper shell 31 respectively abut against the groove wall of the wide groove 3142 deviating from the upper surface of the upper shell 31 and the groove bottom of the wide groove 3142.

Referring to fig. 2 and 4, the metal powder sieving machine further includes a dust cover 7, the dust cover 7 having a circular plate shape, and the diameter of the dust cover 7 being larger than that of the upper case 31. The dust cover 7 is located at the upper end of the upper shell 31, and the lower surface of the dust cover 7 is attached to the upper end surface of the upper shell 31 and abuts against the first sealing ring 3143. A storage chamber 317 is formed between the lower surface of the dust cover 7 and the upper surface of the support plate 4, and the storage chamber 317 is used to store metal powder.

Referring to fig. 2 and 5, the upper end surface of the upper case 31 is provided with slots 315, in this embodiment, four slots 315 are provided, and the four slots 315 are equally spaced along the circumferential direction of the upper case 31. The slot 315 is located on the side of the first sealing ring 3143 facing away from the feed hole 313. The slot 315 is provided with a limit slot 316 along the slot wall of the upper shell 31 in the circumferential direction. The lower surface fixedly connected with inserted bar 71 of shield 7, inserted bar 71 is connected with gag lever post 72 along the surface mounting of shield 7 circumference, and gag lever post 72 perpendicular to inserted bar 71. The slot 315 is used for inserting the rod 71 and the stop lever 72, the stop slot 316 is used for sliding the stop lever 72, and the slot wall of the stop slot 316 and the surface of the stop lever 72 form a friction pair, so as to improve the stability of the stop lever 72 when being inserted into the stop slot 316. When the insert rod 71 and the limit rod 72 are embedded in the slot 315, the limit rod 72 is aligned with the limit groove 316, and the limit rod 72 is slidably embedded in the limit groove 316 by rotating the dust cover 7.

The surface of the dust cover 7 facing away from the upper shell 31 is fixedly connected with a rotating shaft 73 in a coaxial mode, and the surface of the rotating shaft 73 facing away from the dust cover 7 is fixedly connected with a knob 74, so that people can rotate the dust cover 7 conveniently.

The implementation principle of the metal powder screening machine in the embodiment of the application is as follows: with a metal powder sizer, one can place the metal powder into the storage chamber 317. The plunger 71 and the stop lever 72 are then inserted into the slot 315, and the knob 74 is rotated to insert the stop lever 72 into the stop slot 316, thereby connecting the dust cap 7 to the upper case 31. And a first sealing ring 3143 is arranged between the upper shell 31 and the dust cover 7 to improve the sealing performance between the dust cover 7 and the upper shell 31, thereby reducing the probability of oxidation of the metal powder in the storage cavity 317. When the metal powder in the storage chamber 317 needs to be sieved, people hold the handheld disc 512 by hand and slide the handheld disc 512 so that the baffle 5 slides until the first abutting surface 521 abuts against the inner wall of the upper shell 31, the through holes 41 are communicated with the perforations 511, the metal powder falls into the upper part of the screen 323 from the perforations 511 and the through holes 41, and the vibrating motor 322 is started so that the screen 323 screens the metal powder. Moreover, a third sealing ring 3111 is provided between the upper and lower cases 31 and 32, and a second sealing ring 3122 is provided between the control shaft 513 and the control hole 312 to reduce the possibility of loss of the metal powder in the storage chamber 317, so as to save the metal powder resources. Meanwhile, the probability of external air entering the storage chamber 317 is reduced, so that the probability of oxidation of metal powder in the storage chamber 317 by air is reduced, and the yield of the screened metal powder is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A metal powder screening machine, includes casing (3) and screen cloth (323), screen cloth (323) are located in casing (3), its characterized in that: the dust-proof device is characterized by further comprising a dust cover (7) positioned above the shell (3), wherein a feeding hole (313) for pouring metal powder is formed in the upper surface of the shell (3), the lower surface of the dust cover (7) is used for being attached to the upper surface of the shell (3), an inserting rod (71) is fixedly connected to the lower surface of the dust cover (7), a limiting rod (72) is fixedly connected to the inserting rod (71), and an included angle is formed between the limiting rod (72) and the inserting rod (71); the utility model discloses a friction pair is formed to casing (3) upper surface be equipped with slot (315) that are used for supplying inserted bar (71) and gag lever post (72) embedding, slot (315) are followed cell wall department in feed hole (313) circumference is equipped with spacing groove (316) that are used for supplying gag lever post (72) slip embedding, and gag lever post (72) embedding when spacing groove (316), cell wall and gag lever post (72) of spacing groove (316).

2. A metal powder sizer according to claim 1, wherein: a first sealing ring (3143) is arranged between the shell (3) and the dust cover (7) for sealing.

3. A metal powder sizer according to claim 2, wherein: the upper surface of casing (3) is equipped with coaxial first annular (314) of feed port (313), first annular (314) are located between slot (315) and feed port (313), and first annular (314) are used for supplying first sealing washer (3143) are embedded, and the both sides of first sealing washer (3143) along feed port (313) axial are used for supporting the tank bottom of tight shield (7) and first annular (314).

4. A metal powder sizer according to claim 3, wherein: the first annular groove (314) comprises a narrow groove (3141) and a wide groove (3142), the narrow groove (3141) is coaxially arranged on the upper surface of the shell (3), the wide groove (3142) is coaxially arranged at the bottom of the narrow groove (3141), and the width of the wide groove (3142) along the radial direction of the feeding hole (313) is larger than that of the narrow groove (3141) along the radial direction of the feeding hole (313); the first sealing ring (3143) has elasticity, the first sealing ring (3143) is embedded into the narrow groove (3141) and the wide groove (3142), and the groove wall of the wide groove (3142) deviating from the upper surface of the shell (3) is abutted against the first sealing ring (3143).

5. A metal powder sizer according to claim 1, wherein: the dust-proof device further comprises a control shaft (513) and a support plate (4) positioned above the screen (323), a storage cavity (317) for storing metal powder is formed between the support plate (4) and the dust cover (7), the support plate (4) is fixedly connected to the inner wall of the shell (3), and the support plate (4) is provided with a through hole (41); the upper surface of the supporting plate (4) is in sliding butt joint with a baffle (5), the baffle (5) is provided with a perforation (511), the outer wall of the shell (3) is provided with a control hole (312), the control hole (312) is communicated with the inside of the shell (3), one end of the control shaft (513) is fixedly connected with the baffle (5), and the other end of the control shaft (513) is in sliding embedding with the control hole (312) and is attached to the wall of the control hole (312); the baffle (5) is provided with a first abutting surface (521) and a second abutting surface (522) along two sides of the sliding direction of the baffle respectively, when the first abutting surface (521) abuts against the inner wall of the shell (3), the through hole (41) is communicated with the perforation (511), and when the second abutting surface (522) abuts against the inner wall of the shell (3), the supporting plate (4) covers the through hole (41).

6. A metal powder sizer according to claim 5, wherein: the through holes (511) are in a frustum shape, and the diameters of the through holes (511) are gradually reduced from top to bottom to be equal to the diameters of the through holes (41).

7. A metal powder sizer according to claim 5, wherein: a second annular groove (3121) is arranged at the groove wall of the control hole (312), a second sealing ring (3122) is embedded in the second annular groove (3121), and the second sealing ring (3122) abuts against the groove wall of the control hole (312) and the control shaft (513).

8. A metal powder sizer according to claim 5, wherein: the baffle (5) comprises a plate body (51) and two buffer blocks (52), the buffer blocks (52) are elastic, the two buffer blocks (52) are fixedly connected to two sides of the plate body (51) along the sliding direction of the baffle, and the first abutting surface (521) and the second abutting surface (522) are respectively arranged on the surfaces, deviating from the two buffer blocks (52).