Step-by-step fine screening device for powder

Abstract

The utility model discloses a powder step-by-step fine screening device which comprises a containing box, a supporting frame is arranged in the containing box, a cross rod is movably connected to the supporting frame in a penetrating mode, a screening frame is fixedly connected to the cross rod, and a plurality of filtering holes are formed in the bottom of the screening frame and used for filtering powder. And a driving assembly enabling the screening frame to move left and right is arranged on the supporting frame so that the screening frame can shake left and right, and a rotary cutting assembly for cutting powder is arranged on the transverse rod so that the adhered powder can be scattered. According to the powder screening device, powder can shake in the screening frame through left-right reciprocating movement of the screening frame, the powder filtering speed is increased, the screening frame can be impacted through the rubber hammer, powder adhering to the inner wall of the screening frame can be shaken off, the complexity of subsequent cleaning is reduced, the adhered powder can be cut off through rotation of the rotary cutting piece, and the powder screening efficiency is improved. And the powder is prevented from caking due to moisture.

Description

Technical Field

[0001] The utility model relates to the technical field of powder screening, in particular to a powder step-by-step fine screening device. Background Art

[0002] Powder is usually a collection of discrete particles, generally including metal powder, plastic powder, food powder, construction powder, etc. Powder processing sometimes requires screening of the powder. The current traditional screening device structure is relatively cumbersome, and the screening method is not convenient and flexible enough. At the same time, since some powders are relatively moist, the powders are easy to clump together, and some will adhere to the inner wall of the screening cylinder, affecting the screening efficiency. Therefore, a person skilled in the art provides a powder step-by-step fine screening device to solve the problems raised in the above background technology. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a powder step-by-step fine screening device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A powder step-by-step fine screening device comprises a containing box, the interior of the containing box passes through a supporting frame, a cross bar movably connected to the supporting frame, a screening frame fixedly connected to the cross bar, a plurality of filter holes are provided at the bottom of the screening frame for filtering the powder, a driving component for moving the screening frame left and right is provided on the supporting frame so as to make the screening frame swing left and right, a rotary cutting component for cutting the powder is provided on the cross bar so as to break up the adhered powder, and vibration components for tapping the screening frame are provided on both sides of the supporting frame so as to shake off the powder adhered to the inner wall of the screening frame.

[0006] As a further solution of the utility model, the driving assembly includes two positioning rods, a roller, and a swash plate. The top of the support frame is fixedly connected to two fixed seats, the roller is movably connected between the two fixed seats, the swash plate is fixedly connected to the circumferential outer wall of the roller, the two positioning rods are fixedly connected to the cross bar, the swash plate is located between the two positioning rods, and the two positioning rods are in contact with the swash plate, and a first motor is fixedly connected to one side of one of the fixed seats, and one end of the output shaft of the first motor is fixed to the roller.

[0007] As a further solution of the utility model, the rotary cutting assembly is a plurality of rotary cutting sheets, the bottom of the cross bar is fixedly connected to a second motor, one end of the second motor output shaft is fixedly connected to a rotating shaft, the plurality of rotary cutting sheets are respectively fixedly connected to the circumferential outer wall of the rotating shaft, and the rotary cutting sheets are located inside the screening frame.

[0008] As a further solution of the utility model, the vibration component is a rubber hammer, and both sides of the support frame are movably connected with sliding rods, one end of the sliding rod is fixedly connected with the rubber hammer, and the rubber hammer can contact the outer wall of the screening frame, and the circumferential outer walls of the two sliding rods are movably connected with springs, and the two ends of the spring are respectively fixed to the sliding rod and the support frame.

[0009] As a further solution of the utility model, the tops of the support frame at both ends are fixedly connected with guide sleeves, and the cross bar passes through and is movably connected in the two guide sleeves.

[0010] As a further solution of the utility model, a notch is provided on one side of the containing box, and two box doors are movably connected in the notch.

[0011] The beneficial effects of the utility model are:

[0012] 1. Through the setting of the inclined plate and the positioning rod, the cross bar can drive the screening frame to move back and forth left and right, so that the powder shakes in the screening frame. The screening method is simple and convenient, and the powder filtering rate is accelerated.

[0013] 2. By setting a rubber hammer, the rubber hammer is hit during the process of the screening frame moving left and right. The screening frame vibrates after being hit, which can shake off the powder adhering to the inner wall of the screening frame, which is beneficial to powder screening and reduces the tediousness of subsequent cleaning.

[0014] 3. The rotating shaft drives the rotary slicer to rotate and cut the sticky powder to prevent the powder from agglomerating due to moisture, ensuring the normal powder filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a powder step-by-step fine screening device proposed by the utility model;

[0016] Figure 2 The utility model provides a schematic cross-sectional structure diagram of a powder step-by-step fine screening device.

[0017] In the figure: 1. containing box; 2. supporting frame; 3. first motor; 4. positioning rod; 5. rotating roller; 6. inclined plate; 7. fixing seat; 8. guide sleeve; 9. cross bar; 10. screening frame; 11. box door; 12. sliding rod; 13. spring; 14. rubber hammer; 15. rotary slice; 16. filtering hole; 17. rotating shaft; 18. second motor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0019] Reference Figure 1-Figure 2 A powder step-by-step fine screening device comprises a holding box 1, the interior of the holding box 1 passes through a support frame 2, a cross bar 9 is slidably connected to the support frame 2, a screening frame 10 is fixed to the cross bar 9 by bolts, a plurality of filter holes 16 are provided at the bottom of the screening frame 10 for filtering the powder, when the powder needs to be screened, the powder is poured into the screening frame 10, and the powder falls into the holding box 1 through the filter holes 16, a driving component for moving the screening frame 10 left and right is provided on the support frame 2, so that the screening frame 10 shakes left and right, a rotary cutting component for cutting the powder is provided on the cross bar 9, so as to break up the adhered powder, and a vibration component for beating the screening frame 10 is provided on both sides of the support frame 2, so as to shake off the powder adhered to the inner wall of the screening frame 10.

[0020] In the utility model, the driving assembly includes two positioning rods 4, a roller 5, and a swash plate 6. The top of the support frame 2 is fixed with two fixing seats 7 by bolts. The roller 5 is rotatably connected between the two fixing seats 7. The swash plate 6 is fixed on the circumferential outer wall of the roller 5 by bolts. The surface of the swash plate 6 is a slightly curved surface. The two positioning rods 4 are fixed on the cross bar 9 by bolts. The swash plate 6 is located between the two positioning rods 4, and the two positioning rods 4 are in contact with the swash plate 6. A first motor 3 is fixed on one side of one of the fixing seats 7 by bolts, and one end of the output shaft of the first motor 3 is fixed to the roller 5. The first motor 3 is started, and the first motor 3 rotates to make the roller 5 drive the swash plate 6 to rotate. Since the swash plate 6 is tilted on the roller 5, the swash plate 6 is always kept in the two positioning rods 4 during the process of the swash plate 6 following the rotation of the roller 5. The swash plate 6 squeezes the positioning rod 4 laterally, prompting the positioning rod 4 to drive the cross bar 9 to move back and forth, and the reciprocating movement of the cross bar 9 causes the screening frame 10 to move back and forth, thereby causing the powder to shake in the screening frame 10, thereby accelerating the powder filtering rate.

[0021] In the utility model, the rotary cutting assembly is a plurality of rotary cutting slices 15, a second motor 18 is fixed to the bottom of the cross bar 9 by bolts, one end of the output shaft of the second motor 18 is keyed to the rotating shaft 17, and the plurality of rotary cutting slices 15 are respectively fixed to the circumferential outer wall of the rotating shaft 17 by bolts, and the rotary cutting slices 15 are located inside the screening frame 10. If agglomeration between powders is encountered, the second motor 18 is started, and the second motor 18 rotates to make the rotating shaft 17 drive the rotary cutting slices 15 to rotate. The rotary cutting slices 15 cut the adhered powder during the rotation process, thereby ensuring normal powder filtration.

[0022] In the utility model, the vibration component is a rubber hammer 14, and both sides of the support frame 2 are penetrated by a sliding rod 12 for sliding connection. One end of the sliding rod 12 is fixed with the rubber hammer 14 by a bolt, and the rubber hammer 14 can contact the outer wall of the screening frame 10. The circumferential outer walls of the two sliding rods 12 are sleeved with a spring 13, and the two ends of the spring 13 are respectively fixed to the sliding rod 12 and the support frame 2. When the screening frame 10 moves left and right, the rubber hammer 14 is hit. At this time, the screening frame 10 vibrates after receiving the impact, and the powder on the inner wall of the screening frame 10 can be shaken off. After the rubber hammer 14 is hit again, the sliding rod 12 moves outward, and the spring 13 is forced to shrink. When the screening frame 10 moves to the other side, the spring 13 rebounds and resets, and the sliding rod 12 drives the rubber hammer 14 to reset.

[0023] In the utility model, the tops of the support frame 2 at both ends are fixed with guide sleeves 8 by bolts, and the cross bar 9 is slidably connected in the two guide sleeves 8. The cross bar 9 can move in the guide sleeves 8, and the guide sleeves 8 can assist the cross bar 9 to move more smoothly.

[0024] In the utility model, a notch is provided on one side of the containing box 1 , and two box doors 11 are rotatably connected in the notch. When the box doors 11 are opened, the filtered powder can be taken out from the containing box 1 .

[0025] Working principle: When the powder needs to be screened, the powder is poured into the screening frame 10, and the powder falls into the containing box 1 through the filter hole 16, and the first motor 3 is started. The first motor 3 rotates to make the roller 5 drive the swash plate 6 to rotate, and because the swash plate 6 is tilted on the roller 5, when the swash plate 6 follows the rotation of the roller 5, the swash plate 6 presses the positioning rod 4 laterally, so that the positioning rod 4 drives the cross bar 9 to move back and forth, and the reciprocating movement of the cross bar 9 causes the screening frame 10 to move back and forth, thereby causing the powder to shake in the screening frame 10, thereby accelerating the rate of powder filtration, and in the process of the screening frame 10 moving left and right, The rubber hammer 14 hits, and the screening frame 10 vibrates after being hit, so that the powder on the inner wall of the screening frame 10 can be shaken off. After the rubber hammer 14 is hit again, the slide bar 12 moves outward, and the spring 13 contracts under the force. When the screening frame 10 moves to the other side, the spring 13 rebounds and resets, and the slide bar 12 drives the rubber hammer 14 to reset. During the powder filtering process, if powders are agglomerated, the second motor 18 is started, and the second motor 18 rotates to make the rotating shaft 17 drive the rotary slice 15 to rotate. The rotary slice 15 cuts the adhered powder during the rotation process, thereby ensuring the normal powder filtering.

[0026] In this application, structures and connection relationships that are not described in detail are all prior arts, and their structures and principles are well-known technologies and will not be described in detail here.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A powder step-by-step fine screening device, comprising a holding box (1), characterized in that: The interior of the containing box (1) passes through a support frame (2), a cross bar (9) is movably connected to the support frame (2), a screening frame (10) is fixedly connected to the cross bar (9), a plurality of filtering holes (16) are provided at the bottom of the screening frame (10) for filtering the powder, a driving component for moving the screening frame (10) left and right is provided on the support frame (2), so that the screening frame (10) shakes left and right, a rotary cutting component for cutting the powder is provided on the cross bar (9), so as to break up the adhered powder, and vibration components for beating the screening frame (10) are provided on both sides of the support frame (2), so as to shake off the powder adhered to the inner wall of the screening frame (10).

2. A powder step-by-step fine screening device according to claim 1, characterized in that: The driving assembly comprises two positioning rods (4), a roller (5), and a swash plate (6); the top of the support frame (2) is fixedly connected to two fixing seats (7); the roller (5) is movably connected between the two fixing seats (7); the swash plate (6) is fixedly connected to the circumferential outer wall of the roller (5); the two positioning rods (4) are fixedly connected to a cross bar (9); the swash plate (6) is located between the two positioning rods (4), and the two positioning rods (4) are in contact with the swash plate (6); one side of one of the fixing seats (7) is fixedly connected to a first motor (3), and one end of an output shaft of the first motor (3) is fixed to the roller (5).

3. A powder step-by-step fine screening device according to claim 1, characterized in that: The rotary cutting assembly comprises a plurality of rotary cutting pieces (15), the bottom of the cross bar (9) is fixedly connected to a second motor (18), one end of the output shaft of the second motor (18) is fixedly connected to a rotating shaft (17), the plurality of rotary cutting pieces (15) are respectively fixedly connected to the circumferential outer wall of the rotating shaft (17), and the rotary cutting pieces (15) are located inside the screening frame (10).

4. A powder step-by-step fine screening device according to claim 1, characterized in that: The vibration component is a rubber hammer (14), and both sides of the support frame (2) are movably connected with a slide rod (12), one end of the slide rod (12) is fixedly connected with the rubber hammer (14), and the rubber hammer (14) can contact the outer wall of the screening frame (10), and the circumferential outer walls of the two slide rods (12) are movably connected with a spring (13), and the two ends of the spring (13) are respectively fixed to the slide rod (12) and the support frame (2).

5. The powder step-by-step fine screening device according to claim 1, characterized in that: The tops of both ends of the support frame (2) are fixedly connected with guide sleeves (8), and the cross bar (9) passes through and is movably connected in the two guide sleeves (8).

6. A powder step-by-step fine screening device according to claim 1, characterized in that: A notch is provided on one side of the storage box (1), and two box doors (11) are movably connected in the notch.

Images