Multi-stage powder screening machine

Abstract

The utility model relates to the field of multi-stage powder screening machines, in particular to a multi-stage powder screening machine which is characterized in that a feeding mechanism is arranged on one side of the top of a multi-stage powder screening machine body, an upper pulling plate and a lower pulling plate are movably arranged in the feeding mechanism, and one end of the upper pulling plate and one end of the lower pulling plate extend out of the feeding mechanism; a bearing seat is arranged outside the feeding mechanism and located between the upper pulling plate and the lower pulling plate, a rotating shaft is rotationally arranged on the bearing seat, the rotating shaft is fixedly sleeved with a limiting piece, and limiting cavities are formed in the positions, corresponding to the limiting piece, of the upper pulling plate and the lower pulling plate in a matched mode. According to the multi-stage powder screening machine, screening of powder can be achieved through the multi-stage powder screening machine body, quantitative feeding of the powder can be achieved through matched arrangement of the upper pulling plate and the lower pulling plate in the feeding mechanism, and the quantitative feeding structure is simple, convenient to operate, not prone to faults and convenient for a user to use.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage powder screening machines, in particular to a multi-stage powder screening machine. Background Art

[0002] Multi-stage powder sieving machine is a kind of equipment specially used for multi-stage screening of powder materials. Multi-stage powder sieving machine is usually equipped with multiple layers of screens, each layer of screens has different apertures, which can achieve multi-stage screening of materials. Through multi-stage screening, materials can be accurately classified according to particle size, and impurities and particles that do not meet the requirements can be removed.

[0003] The screening effect of a multi-stage powder screening machine is closely related to its feed amount. If the feed cannot be quantitatively fed, the thickness of the material layer on the screen surface may fluctuate, resulting in reduced screening efficiency. When the material layer is too thick, the screening effect is poor; when the material layer is too thin, the material on the screen surface may not be effectively squeezed or slid, thus affecting the screening effect. The quantitative feeding structure in traditional multi-stage screening machines is often too complicated, and complex structures are often prone to failure and have certain operating difficulties. Therefore, a quantitative feeding structure with a simple structure and easy operation is urgently needed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a multi-stage powder screening machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-stage powder screening machine comprises a multi-stage powder screening machine body, a feeding mechanism is arranged on one side of the top of the multi-stage powder screening machine body, an upper pull-up plate and a lower pull-up plate are movably arranged inside the feeding mechanism, and one end of the upper pull-up plate and the lower pull-up plate are extended from the feeding mechanism; a bearing seat is arranged outside the feeding mechanism between the upper pull-up plate and the lower pull-down plate, a rotating shaft is rotatably arranged on the bearing seat, a limit piece is fixedly sleeved on the rotating shaft, and corresponding limit pieces on the upper pull-up plate and the lower pull-down plate are adapted to open limit cavities.

[0007] In addition, a preferred structure is that a feed hopper is provided on the top of the feed mechanism, a quantitative channel is provided below the feed hopper between the upper pull plate and the lower pull plate, and a feed port is provided below the lower pull plate.

[0008] In addition, a preferred structure is that sliders are fixedly provided on both sides of the upper pull plate and the lower pull plate, and sliding grooves are provided on the inner wall of the quantitative channel corresponding to the sliders.

[0009] In addition, a preferred structure is that seals are provided on the outer side of the feeding mechanism at the extended portions of the upper and lower pull plates, and anti-fall-off blocks are fixedly provided on the bottom of the upper and lower pull plates on the side away from the seals.

[0010] In addition, a preferred structure is that both ends of the limiting member are in an arc shape, and a counterweight block is fixedly provided at one end of the limiting member.

[0011] In addition, a preferred structure is that a limit rod is fixedly provided on the outer side of the feeding mechanism below one side of the rotating shaft, and the limit rod is adapted to the limit member.

[0012] The beneficial effects of the utility model are as follows: powder material can be screened through the multi-stage powder screening machine body, and quantitative feeding of powder material can be achieved through the coordinated setting between the upper pull plate and the lower pull plate in the feeding mechanism. This quantitative feeding structure is simple, easy to operate, not prone to malfunction, and is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a multi-stage powder screening machine proposed by the utility model;

[0014] Figure 2 This is a structural schematic diagram of a feeding mechanism of a multi-stage powder screening machine proposed by the utility model;

[0015] Figure 3 for Figure 2 Schematic diagram of the structure when the middle limiter rotates;

[0016] Figure 4 for Figure 3 Schematic diagram of the structure after the upper pull plate, lower pull plate and limiter are hidden;

[0017] Figure 5 This is a structural schematic diagram of a pull-down plate of a multi-stage powder screening machine proposed by the utility model;

[0018] Figure 6 The utility model is a schematic diagram of the internal structure of a feeding mechanism of a multi-stage powder screening machine.

[0019] In the figure: 1 multi-stage powder screening machine body, 2 feeding mechanism, 21 feeding hopper, 22 quantitative channel, 23 feeding port, 24 chute, 3 upper pull plate, 4 lower pull plate, 5 rotating shaft, 51 limit piece, 52 counterweight block, 6 limit rod, 7 sealing member, 8 slider, 81 limit cavity, 82 anti-falling block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-6A multi-stage powder screening machine comprises a multi-stage powder screening machine body 1, a feeding mechanism 2 is arranged on one side of the top of the multi-stage powder screening machine body 1, an upper pull-up plate 3 and a lower pull-down plate 4 are movably arranged inside the feeding mechanism 2, and one end of the upper pull-up plate 3 and the lower pull-down plate 4 are both extended from the feeding mechanism 2. A bearing seat is arranged outside the feeding mechanism 2 between the upper pull-up plate 3 and the lower pull-down plate 4, a rotating shaft 5 is rotatably arranged on the bearing seat, a limiting member 51 is sleeved on the rotating shaft 5, and the corresponding limiting members 51 on the upper pull-up plate 3 and the lower pull-down plate 4 are both adapted to open a limiting cavity 81. Through the setting of the feeding mechanism 2, the powder can be quantitatively poured into the interior of the multi-stage powder screening machine body 1 for screening. It is worth noting that the specific structure and working mode of the multi-stage powder screening machine body 1 are both existing technologies currently disclosed on the market, and they do not belong to the main technical features to be solved in the present technical solution, so they are not elaborated in the present utility model.

[0022] Among them, a feed hopper 21 is arranged on the top of the feed mechanism 2, and a quantitative channel 22 is arranged below the feed hopper 21 between the upper pull plate 3 and the lower pull plate 4, and a feed port 23 is arranged below the lower pull plate 4. The powder enters from the feed hopper 21, and then is quantitatively measured through the quantitative channel 22. After the quantitative measurement is completed, it enters the multi-stage powder screening machine body 1 through the feed port 23 for screening.

[0023] Among them, sliders 8 are fixedly arranged on both sides of the upper pull plate 3 and the lower pull plate 4, and a slide groove 24 is adapted to be opened on the inner wall of the quantitative channel 22 corresponding to the slider 8. Both the slider 8 and the slide groove 24 are arranged in a special shape, which can prevent the powder from accumulating on the slide groove 24.

[0024] Among them, the outer side of the feeding mechanism 2 is provided with a seal 7 at the extended part of the upper pull plate 3 and the lower pull plate 4, and the bottom of the upper pull plate 3 and the lower pull plate 4 is fixedly provided with an anti-dropping block 82 on the side away from the seal 7. The setting of the seal 7 can prevent the powder from being taken out when the upper pull plate 3 and the lower pull plate 4 are pulled out. The setting of the anti-dropping block 82 can prevent the upper pull plate 3 and the lower pull plate 4 from being completely pulled out.

[0025] Among them, both ends of the limit member 51 are "arc-shaped", and a counterweight 52 is fixedly provided at one end of the limit member 51. A limit rod 6 is fixedly provided on the outer side of the feeding mechanism 2 below one side of the rotating shaft 5, and the limit rod 6 is adapted to the limit member 51. By setting the counterweight 52, the limit member 51 can be in a vertical state. And the weight of the counterweight 52 is relatively light, so when the limit member 51 is placed on the limit rod 6, the limit member 51 will not fall due to the gravity of the counterweight 52. And the limit cavity 81 on the lower pull plate 4 is set corresponding to the end of the limit member 51 with the counterweight 52, and the limit cavity 81 on the upper pull plate 3 is set corresponding to the end of the limit member 51 without the counterweight 52.

[0026] In this embodiment, when the user needs to load the multi-stage powder screening machine body 1, the powder can be poured into the feed hopper 21, and then the upper pull plate 3 is pulled out, and part of the powder can fall from the feed hopper 21 into the quantitative channel 22. Then the user pushes up the upper pull plate 3 and pulls out the lower pull plate 4, and the powder in the quantitative channel 22 can enter the interior of the multi-stage powder screening machine body 1 through the feed port 23. In this reciprocating manner, the quantitative loading of the powder can be achieved.

[0027] Furthermore, when the user needs to pull out the upper pull plate 3 and the lower pull plate 4, the stopper 51 can be rotated by the rotating shaft 5, and one end of the stopper 51 can be rotated to the top of the stopper rod 6, so that the stopper 51 can release the clamping of the stopper 51 on the limit cavity 81 in the upper pull plate 3 and the lower pull plate 4, thereby realizing the pulling out of the upper pull plate 3 and the lower pull plate 4. When the user needs to fix the upper pull plate 3 and the lower pull plate 4, it is only necessary to rotate the stopper 51 to a vertical state again, and at this time, the two ends of the stopper 51 can enter the limit cavity 81, and at this time, the clamping of the upper pull plate 3 and the lower pull plate 4 can be realized. And it is worth noting that the height of the limit cavity 81 is relatively short, and when the upper pull plate 3 or the lower pull plate 4 is pulled out, the stopper 51 will not affect it.

[0028] In the utility model, the powder can be screened by the multi-stage powder screening machine body 1, and the quantitative feeding of the powder can be achieved through the coordinated setting between the upper pull plate 3 and the lower pull plate 4 in the feeding mechanism 2. This quantitative feeding structure is simple, easy to operate, not prone to malfunction, and is convenient for users to use.

[0029] 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 multi-stage powder sieving machine, comprising a multi-stage powder sieving machine body (1), characterized in that: A feeding mechanism (2) is arranged on one side of the top of the multi-stage powder screening machine body (1), and an upper pull plate (3) and a lower pull plate (4) are movably arranged inside the feeding mechanism (2), and one end of the upper pull plate (3) and the lower pull plate (4) both extend out from the feeding mechanism (2); A bearing seat is arranged outside the feeding mechanism (2) between the upper pull plate (3) and the lower pull plate (4), a rotating shaft (5) is rotatably arranged on the bearing seat, a limiting member (51) is fixedly sleeved on the rotating shaft (5), and corresponding limiting members (51) on the upper pull plate (3) and the lower pull plate (4) are adapted to be provided with limiting cavities (81).

2. A multi-stage powder screening machine according to claim 1, characterized in that: A feeding hopper (21) is arranged on the top of the feeding mechanism (2), a quantitative passage (22) is arranged below the feeding hopper (21) and between the upper pull plate (3) and the lower pull plate (4), and a feeding port (23) is arranged below the lower pull plate (4).

3. A multi-stage powder screening machine according to claim 1, characterized in that: Slide blocks (8) are fixedly provided on both sides of the upper pull plate (3) and the lower pull plate (4), and a sliding groove (24) is provided on the inner wall of the quantitative channel (22) corresponding to the slide blocks (8).

4. A multi-stage powder screening machine according to claim 3, characterized in that: The outer side of the feeding mechanism (2) is provided with sealing members (7) at the extended portions of the upper pull plate (3) and the lower pull plate (4), and anti-falling blocks (82) are fixedly provided at the bottom of the upper pull plate (3) and the lower pull plate (4) on the side away from the sealing members (7).

5. A multi-stage powder sieving machine according to claim 1, characterized in that: Both ends of the limiting member (51) are in an arc shape, and a counterweight block (52) is fixedly provided at one end of the limiting member (51).

6. A multi-stage powder screening machine according to claim 5, characterized in that: A limiting rod (6) is fixedly arranged on the outer side of the feeding mechanism (2) below one side of the rotating shaft (5), and the limiting rod (6) is adapted to the limiting member (51).

Images