CN213134015U - Powder screening machine - Google Patents

Abstract

The utility model provides a powder sieving machine, which comprises a box body, wherein a plurality of layers of screen meshes are arranged inside the box body, a dustproof cover is arranged at the top of the box body, a feeding pipe extending towards the inside of the box body is vertically fixed at the top of the dustproof cover, a first bearing is fixed at two sides of the feeding pipe, a first rotating shaft is horizontally arranged inside the feeding pipe, a plurality of rotating discs are uniformly distributed on the outer wall of the first rotating shaft along the circumference, a second bearing is sleeved on the outer wall of the bottom of the feeding pipe, connecting blocks are fixed on the outer walls of two sides of the second bearing, a powder outlet hopper concentric with the feeding pipe is fixed at the bottom of the connecting blocks, a powder outlet pipe extending towards the inner wall direction of the box body is connected at the bottom of the powder outlet hopper, a plurality of powder outlet holes are formed on the lower end surface of the powder outlet pipe along the length direction, the powder sieving machine not only avoids the damage to the screen, the efficiency of powder classifying and screening is improved.

Description

Powder screening machine

Technical Field

The utility model relates to a sieve powder equipment technical field especially relates to a powder shifter.

Background

The powder is required to be classified according to size after being prepared, ultrasonic-assisted rotary vibration sieve is generally adopted for classification in the powder manufacturing industry, the powder sieving machine comprises a box body, a plurality of layers of sieve meshes, a vibration exciter and other necessary auxiliary structures, the vibration exciter is used for providing power for the box body to enable the box body to do reciprocating rotary motion, the plurality of layers of sieve meshes are arranged in the box body, the sieve meshes of the sieve meshes are gradually reduced from top to bottom, the box body is provided with a plurality of powder outlet openings on the side surface from the second layer of sieve mesh, the powder outlet openings are used for discharging powder sieved by each layer of sieve mesh to realize classification of the powder, the sieve mesh on the uppermost layer is a coarse sieve used for feeding powder raw materials, and large-particle.

The inventor finds that when the powder is classified and sieved, raw materials of the powder are directly poured from the top of the powder sieving machine, the powder impacts the screen mesh on the uppermost layer in the falling process, the screen mesh on the uppermost layer is abraded and the materials are unevenly distributed due to long-term use, the powder falls on the screen mesh on the uppermost layer and is stacked in a conical shape, the time for the powder to completely enter the lower layer is prolonged, and the powder sieving efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a powder sifter, which solves all or one of the above problems.

Based on the above purpose, the utility model provides a powder sieving machine, which comprises a box body, wherein a plurality of layers of screen meshes are arranged inside the box body, a dustproof cover is arranged at the top of the box body, a feeding pipe extending towards the inside of the box body is vertically fixed at the top of the dustproof cover, a first bearing is fixed at two sides of the feeding pipe, a first rotating shaft is horizontally arranged inside the feeding pipe, two ends of the first rotating shaft are fixed in inner rings of two first bearings, the rotating shaft passes through the central axis of the feeding pipe, a plurality of turntables are uniformly distributed on the outer wall of the first rotating shaft along the circumference, a second bearing is sleeved on the outer wall of the bottom of the feeding pipe, connecting blocks are fixed on the outer walls of two sides of the second bearing, a powder outlet hopper concentric with the feeding pipe is fixed at the bottom of the connecting blocks, a powder outlet pipe extending towards the direction of the inner wall of the box body is connected, and the side surface of the feeding pipe is also provided with a linkage unit, the linkage unit is used for keeping the first rotating shaft and the powder discharging hopper in linkage, and when the first rotating shaft rotates around the central axis of the first rotating shaft, the powder discharging hopper rotates around the central axis of the feeding pipe.

Optionally, the linkage unit comprises a fixing block fixed on the side wall of the feeding pipe, the fixing block is positioned between a first bearing and a second bearing, a rotating seat horizontally arranged is fixed at the end of the fixing block, a second rotating shaft is vertically fixed on the inner ring of the bearing of the rotating seat, a second bevel gear is fixed at the upper end of the second rotating shaft, a transmission gear is fixed at the lower end of the second rotating shaft, one end of the first rotating shaft extends to the outer side of the feeding pipe and is fixed with the first bevel gear meshed with the second bevel gear, an annular outer gear is arranged on the outer side of the second bearing, the outer gear is concentric with the second bearing, the inner wall of the outer gear is fixedly connected with the.

Optionally, one surface of the turntable is fixed with a plurality of thimbles perpendicular to the plane of the turntable.

Optionally, a dividing piece is further fixed to the inner wall of the feeding pipe, the dividing piece is located below the first rotating shaft, the dividing piece comprises a plurality of criss-cross metal sheets, and the metal sheets are vertically arranged.

Optionally, the powder outlet pipe is gradually inclined downwards from the lower end of the powder outlet hopper to the inner wall of the box body.

Optionally, the aperture of the powder outlet hole gradually increases from the lower end of the powder outlet hopper to the inner wall of the box body.

Optionally, a powder accumulation plate is fixed at the lower end of the screen, the powder accumulation plate is in an inverted round table shape, and the upper end and the lower end of the powder accumulation plate are both in an open shape.

From the above, can see out, the utility model provides a powder shifter absorbs the impact potential energy when powder whereabouts through the carousel, goes out the powder pipe through rotating and tiles the powder, has both avoided the direct whereabouts of powder to strike the screen cloth and has caused the damage, also makes the powder of whereabouts directly be circular form tiling on the screen cloth of superiors, and then shortens the powder and pass through the time of the screen cloth mesh of superiors completely, improves the efficiency of powder classification screening.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the powder screening machine of the present invention;

FIG. 2 is an enlarged schematic view of the structure of the feeding tube of the present invention;

fig. 3 is a schematic top view of a second-class structure of the bearing of the present invention;

FIG. 4 is a schematic side view of the structure of the turntable of the present invention;

fig. 5 is a schematic top view of the separator of the present invention.

Wherein 1, a box body; 2. screening a screen; 3. a powder accumulation plate; 4. a dust cover; 5. a feed pipe; 6. a first bearing; 7. a first rotating shaft; 8. a turntable; 9. a thimble; 10. a first bevel gear; 11. a second bevel gear; 12. a second rotating shaft; 13. a rotating seat; 14. a fixed block; 15. a transmission gear; 16. an outer gear; 17. dividing the slices; 18. a second bearing; 19. connecting blocks; 20. a powder outlet hopper; 21. a powder outlet pipe; 22. and a powder outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The utility model provides a powder sieving machine, which comprises a box body 1, wherein a plurality of layers of screen meshes 2 are arranged inside the box body 1, a dustproof cover 4 is arranged at the top of the box body 1, a feed pipe 5 extending towards the inside of the box body 1 is vertically fixed at the top of the dustproof cover 4, a first bearing 6 is fixed at two sides of the feed pipe 5, a first rotating shaft 7 is horizontally arranged inside the feed pipe 5, two ends of the first rotating shaft 7 are fixed in inner rings of the first bearing 6, the first rotating shaft 7 passes through the central axis of the feed pipe 5, a plurality of turntables 8 are uniformly distributed on the outer wall of the first rotating shaft 7 along the circumference, a second bearing 18 is sleeved on the outer wall of the bottom of the feed pipe 5, connecting blocks 19 are fixed on the outer walls of two sides of the second bearing 18, a powder outlet hopper 20 concentric with the feed pipe 5 is fixed at the bottom of the connecting blocks 19, a powder outlet pipe, a plurality of powder outlet holes 22 are formed in the lower end face of the powder outlet pipe 21 along the length direction of the powder outlet pipe, a linkage unit is further arranged on the side face of the inlet pipe 5 and used for enabling the first rotating shaft 7 and the powder outlet hopper 20 to keep linkage, and when the first rotating shaft 7 rotates around the central axis of the first rotating shaft, the powder outlet hopper 20 rotates around the central axis of the inlet pipe 5.

As shown in figures 1 and 2, the powder sieving machine comprises a box body 1, a plurality of layers of screen meshes 2 are arranged inside the box body 1, the apertures of the screen meshes 2 are sequentially reduced from top to bottom and are used for sieving powder step by step, a plurality of outlets are arranged on the side surface of the box body 1 and are used for discharging powder sieved by each layer, a dust cover 4 is arranged at the top of the box body 1 and is arranged on the box body 1 in a detachable connection mode, workers can conveniently detach and maintain the dust cover 4, a feeding pipe 5 extending towards the inside of the box body 1 is arranged at the top of the dust cover 4, the feeding pipe 5 can be fixedly connected with the dust cover 4 in a welding mode, bearings 6 are fixed on the outer walls of two sides of the feeding pipe 5, the bearings 6 can be fixed on the outer wall of the feeding pipe 5 in a welding mode, a horizontal rotating shaft 7 is arranged inside the feeding pipe 5, the rotating shaft 7 passes through the, the outer wall of the first rotating shaft 7 is provided with a plurality of rotating discs 8, for example, the feeding pipe 5 is of a cylindrical structure, the cross section of the feeding pipe 5 is circular, the rotating discs 8 correspond to the feeding pipe 5 and can be in a semicircular shape, the outer wall of the bottom of the feeding pipe 5 is sleeved with a second bearing 18, the outer walls of two sides of the second bearing 18 are fixed with connecting blocks 19, the bottom of the connecting block 19 is fixed with a powder outlet hopper 20 concentric with the feeding pipe 5, the connecting pipe can be fixedly connected with the powder outlet hopper 20 and the second bearing 18 in a welding mode, the inner ring of the second bearing 18 is fixedly connected with the feeding pipe 5, the outer ring of the second bearing is connected with the powder outlet hopper 20 through the connecting blocks 19, the powder outlet hopper 20 can rotate around the central shaft of the feeding pipe 5, the outer diameter of the upper part of the powder outlet hopper 20 is larger than the inner diameter of the feeding pipe 5, so that all powder in the feeding pipe 5 can enter the powder outlet, the bottom of the powder outlet pipe 21 is provided with a plurality of powder outlet holes 22 along the length direction, the side surface of the inlet pipe 5 is provided with a linkage unit, the linkage unit enables the first rotating shaft 7 and the powder outlet hopper 20 to keep linkage, when the first rotating shaft 7 rotates, specifically, when the first rotating shaft 7 rotates around the central axis of the first rotating shaft, the powder outlet hopper 20 synchronously rotates, and rotates around the central axis of the inlet pipe 5.

For example, when classifying and screening the powder, the powder material is injected from the top of the feeding pipe 5, the powder falls on the rotating disc 8 of the rotating shaft one 7 when falling, as shown in fig. 4, the rotating shaft one 7 and the rotating discs 8 are combined into a structure similar to a windmill wheel, when falling, the powder impacts the rotating disc 8 to rotate the rotating shaft one 7, on one hand, the rotating disc 8 can slow down the impact when falling, on the other hand, the potential energy of the falling powder is converted into the kinetic energy for driving the rotating shaft one 7 to rotate, the powder continuously falls after passing through the rotating disc 8 and enters the powder outlet hopper 20 from the bottom of the feeding pipe 5, then falls from the powder outlet hopper 20 into the powder outlet pipe 21, the lower end surface of the powder outlet pipe 21 is provided with a plurality of powder outlet holes 22, the falling powder falls from each powder outlet hole 22 onto the uppermost screen 2, and the rotating shaft one 7 is driven to rotate during the falling, and the side surface of the feeding pipe 5 is provided with a linkage, so when pivot 7 rotates, go out powder fill 20 and rotate around the center pin of inlet pipe 5 in step, and then drive out powder pipe 21 and rotate, it is static that powder pipe 21 is in, the whole straight line that is of each powder hole 22 whereabouts is arranged, when powder pipe 21 rotates along with a powder fill 20, the powder falls behind and is circular distribution, so both avoided the direct whereabouts of powder to cause the damage to screen cloth 2 impact, also make the powder of whereabouts directly be circular form tiling on the screen cloth 2 of the superiors, and then shorten the time that the powder passes through 2 meshes of the screen cloth of the superiors completely, improve the efficiency of powder classifying and screening.

In some optional embodiments, the linkage unit comprises a fixed block 14 fixed on the side wall of the feeding pipe 5, the fixed block 14 is located between the first bearing 6 and the second bearing 18, a horizontally arranged rotating base 13 is fixed at the end of the fixed block 14, a second rotating shaft 12 is vertically fixed at the inner bearing ring of the rotating base 13, a second bevel gear 11 is fixed at the upper end of the second rotating shaft 12, a transmission gear 15 is fixed at the lower end of the second rotating shaft, one end of the first rotating shaft 7 extends to the outside of the feeding pipe 5 and is fixed with a first bevel gear 10 engaged with the second bevel gear 11, an annular outer gear 16 is arranged at the outside of the second bearing 18, the outer gear 16 is concentric with the second bearing 18, the inner wall of the outer gear 16 is fixedly connected with a connecting block 19, and the transmission.

As shown in fig. 2 and 3, the linkage unit includes a fixed block 14, the fixed block 14 is fixed on the sidewall of the feeding pipe 5 by welding or bolting, the fixed block 14 is interposed between the first bearing 6 and the second bearing 18, a rotating base 13 is fixed at an end portion of the fixed block, the rotating base 13 can be fixed by bolting, a second rotating shaft 12 is vertically arranged on an inner bearing ring of the rotating base 13, the second rotating shaft 12 is in interference fit with the inner bearing ring of the rotating base 13, a second bevel gear 11 is fixed at an upper end of the second rotating shaft 12, a transmission gear 15 is fixed at a lower end of the second rotating shaft 12, one end of the first rotating shaft 7 extends to the outside of the feeding pipe 5, a first bevel gear 10 is fixed at an end portion of the first rotating shaft 10, the first bevel gear 10 is engaged with the second bevel gear 11, when the first rotating shaft 7 rotates, the second rotating shaft 12 is driven, the outer gear 16 is concentric with the second bearing 18, the inner wall of the outer gear 16 is fixedly connected with the connecting block 19, the connecting block 19 can be fixedly connected with the inner wall of the outer gear 16 in a welding mode, the transmission gear 15 is meshed with the outer gear 16, when the second rotating shaft 12 rotates, the transmission gear 15 drives the outer gear 16 to rotate, the outer gear 16 drives the outer ring of the second bearing 18 to rotate through the connecting block 19, and further the powder outlet hopper 20 rotates, so that when the powder falls to impact the rotating disc 8, the first rotating shaft 7 rotates, the first rotating shaft 7 enables the powder outlet hopper 20 to synchronously rotate through the linkage unit, the linkage unit does not comprise power-on equipment such as a motor and the like, an external power source is not needed, the powder outlet hopper 20 is driven to rotate by potential energy.

In some alternative embodiments, as shown in fig. 4, a plurality of pins 9 perpendicular to the plane of the rotary plate 8 are fixed on one surface of the rotary plate 8, for example, a plurality of pins 9 are disposed on one surface of each rotary plate 8 facing the same rotation direction, when powder is injected into the feed pipe 5, the powder injection port can be deviated to one side of the feed pipe 5, taking the perspective of fig. 4 as an example, the powder injection port can be deviated to the right side of the feed pipe 5, so that the powder contacts the pins 9 on the rotary plate 8 when entering the rotary plate 8, and the pins 9 break some powder blocks in the powder, which are agglomerated due to moisture or other reasons, to further improve the powder screening efficiency.

In some alternative embodiments, as shown in fig. 5, a dividing sheet 17 is further fixed on the inner wall of the feeding pipe 5, the dividing sheet 17 is located below the first rotating shaft 7, the dividing sheet 17 comprises a plurality of criss-cross metal sheets which are vertically arranged, the dividing sheet 17 can be fixed on the inner wall of the feeding pipe 5 through a welding mode, and the plurality of metal sheets further divide the falling powder, further disperse some powder blocks, and improve the subsequent sieving efficiency.

In some optional embodiments, the powder outlet pipe 21 is gradually inclined downwards from the lower end of the powder outlet hopper 20 to the inner wall of the box body 1, so that the powder can be moved to the end of the powder outlet pipe 21 close to the inner wall of the box body 1 conveniently, the powder is prevented from leaking out from the powder outlet hole 22 of the end of the powder outlet pipe 21 close to the powder outlet hopper 20 in a concentrated manner, and the spreading area of the falling powder is enlarged.

In some optional embodiments, the aperture of the powder outlet 22 gradually increases from the lower end of the powder outlet hopper 20 to the inner wall of the box 1, the diameter of the powder outlet 22 near the powder outlet hopper 20 is small but is close to the powder outlet hopper 20, and the diameter of the powder outlet 22 near the inner wall of the box 1 is large but is far from the powder outlet hopper 20, so as to improve the uniformity of the falling powder amount of each powder outlet 22, and make the falling powder uniformly spread on the screen 2 on the uppermost layer by layer.

In some optional embodiments, as shown in fig. 1, a powder accumulation plate 3 is fixed at the lower end of the screen 2, the powder accumulation plate 3 is in an inverted round table shape, the upper end and the lower end of the powder accumulation plate 3 are both in an open shape, powder sieved by each layer of screen 2 falls onto the lower layer of screen 2 through the powder accumulation plate 3, the powder accumulation plate 3 is large at the upper part and small at the lower part, and has a gathering effect, so that powder sieved by the upper layer is gathered in the middle of the lower layer of screen 2, and when the lower layer of screen 2 is used for classifying and sieving the powder, the distance from the middle of the screen 2 to the powder outlet at the side of the screen is long enough, so that the powder is more fully sieved, and the powder is prevented from being discharged from the powder outlet at the side of the box body 1 without being completely sieved.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. The powder screening machine is characterized by comprising a box body (1), wherein a plurality of layers of screen meshes (2) are arranged inside the box body (1), a dust cover (4) is arranged at the top of the box body (1), a feeding pipe (5) extending towards the inside of the box body (1) is vertically fixed at the top of the dust cover (4), bearings (6) are fixed on two sides of the feeding pipe (5), a rotating shaft I (7) is horizontally arranged inside the feeding pipe (5), two ends of the rotating shaft I (7) are fixed in inner rings of the bearings (6), the rotating shaft I (7) passes through the central axis of the feeding pipe (5), a plurality of turntables (8) are uniformly distributed on the outer wall of the rotating shaft I (7) along the circumference, a bearing II (18) is sleeved on the outer wall of the bottom of the feeding pipe (5), and connecting blocks (19) are fixed on the outer walls of two sides of, the bottom of connecting block (19) is fixed with goes out powder fill (20) with inlet pipe (5) is concentric, the bottom that goes out powder fill (20) is connected with goes out powder pipe (21) that extend towards box (1) inner wall direction, a plurality of powder holes (22) have been seted up along its length direction to the lower terminal surface that goes out powder pipe (21), the side of inlet pipe (5) still is equipped with the linkage unit, the linkage unit is used for making pivot (7) and play powder fill (20) keep the linkage, and when pivot (7) rotated around its axis, it rotated around the axis of inlet pipe (5) to go out powder fill (20).

2. The powder shifter according to claim 1, wherein the linkage unit comprises a fixed block (14) fixed on the side wall of the feeding pipe (5), the fixed block (14) is positioned between a first bearing (6) and a second bearing (18), the end of the fixed block (14) is fixed with a horizontally arranged rotating base (13), a second rotating shaft (12) is vertically fixed on the inner bearing ring of the rotating base (13), a second bevel gear (11) is fixed at the upper end of the second rotating shaft (12), a transmission gear (15) is fixed at the lower end of the second rotating shaft (12), one end of the first rotating shaft (7) extends to the outer side of the feeding pipe (5) and is fixed with a first bevel gear (10) meshed with the second bevel gear (11), an annular outer gear (16) is arranged on the outer side of the second bearing (18), the outer gear (16) is concentric with the second bearing (18), and the inner wall of the outer gear (16) is fixedly connected with a connecting, the transmission gear (15) is meshed with an external gear (16).

3. The machine according to claim 1, characterized in that a plurality of thimbles (9) perpendicular to the plane of the rotary disc (8) are fixed to one face of said rotary disc (8).

4. The powder shifter according to claim 3, characterized in that a dividing sheet (17) is further fixed on the inner wall of the feeding pipe (5), the dividing sheet (17) is positioned below the first rotating shaft (7), and the dividing sheet (17) comprises a plurality of criss-cross metal sheets which are vertically arranged.

5. The powder screening machine according to claim 1, characterized in that the powder outlet pipe (21) is gradually inclined downwards from the lower end of the powder outlet hopper (20) to the inner wall of the box body (1).

6. The powder screening machine according to claim 5, characterized in that the diameter of the powder outlet holes (22) increases gradually from the lower end of the powder outlet hopper (20) to the inner wall of the box body (1).

7. The powder shifter according to claim 1, characterized in that a powder accumulation plate (3) is fixed at the lower end of the screen (2), the powder accumulation plate (3) is in an inverted round table shape, and the upper end and the lower end of the powder accumulation plate (3) are both open.

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