Multistage powder screening device

Abstract

The utility model discloses a powder multi-stage screening device, which relates to the technical field of powder screening, and comprises a screening box, a movable frame is arranged in one side of the screening box in a sliding manner, fixed frames are symmetrically arranged in the movable frame, filter frames are detachably arranged on the top surfaces of the two fixed frames, filter screens are respectively arranged in the two filter frames, and the filter screens are arranged in the two filter frames. Under the cooperation of two sliding rails and two sliding sleeves, the movable frame is pulled out of the screening box, the filtering frame provided with the two filtering nets is taken down from the two fixing frames, and through the cooperation of a plurality of damping sockets installed on the two sides of the bottom faces of the two filtering frames correspondingly and damping inserting grooves formed in the two sides of the top faces of the two fixing frames correspondingly, the two filtering nets can be separated from the two fixing frames. The filter frame provided with a new filter screen is installed on the two fixed frames, replacement of the two filter screens can be completed, the movable frame is moved into the screening box to continue to be matched with the screening device to screen powder, the process is simple and convenient, time and labor are saved, and the working efficiency of the screening device is improved.

Description

Technical Field

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

[0002] Powder is a collection of numerous small particles. Its common characteristics are: it has many discontinuous faces, a large specific surface area, and is composed of many small particles. Most powders need to be screened by screening devices during production to ensure the quality of the powder.

[0003] However, although the existing filtering device improves the filtering effect of powder when filtering powder, the process of replacing the internal filter is cumbersome, time-consuming and labor-intensive, which affects the working efficiency of the screening device. Secondly, after the filter in the existing screening device has been used for a long time, the impurities filtered and intercepted on the surface of the filter are prone to accumulation, causing blockage of the filter, affecting the filtering effect of the powder. In view of the above problems, the inventor proposes a multi-stage powder screening device to solve the above problems. Summary of the invention

[0004] In order to solve the problem that the existing filtering device improves the filtering effect of powder when filtering powder, but the process of replacing the internal filter is cumbersome, time-consuming and labor-intensive, which affects the working efficiency of the screening device; the purpose of the utility model is to provide a multi-stage powder screening device.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a powder multi-stage screening device, comprising a screening box, a mobile frame is slidably installed in one side of the screening box, a fixed frame is symmetrically installed in the mobile frame, the number of the fixed frames is two, the top surfaces of the two fixed frames are detachably installed with filter frames, the two filter frames are respectively installed with filter screens, the top surfaces of the two fixed frames are symmetrically provided with uniformly distributed damping slots on both sides, the bottom surfaces of the two filter frames are symmetrically provided with uniformly distributed damping sockets on both sides, the damping sockets are inserted in the damping slots, a mounting groove is opened in one side of the screening box, slide rails are fixedly installed in both ends of the bottom surface of the mounting groove, sliding sleeves are symmetrically installed at one end of both sides of the bottom surface of the mobile frame, the two sliding sleeves are respectively sleeved on the surfaces of the two slide rails, and the mobile frame is slidably installed in the mounting groove through the slide rails and the sliding sleeves;

[0006] When the filter needs to be replaced, with the cooperation of the two slide rails and the two sliding sleeves, the mobile frame is pulled out of the screening box, and the filter frame installed with two filter screens is removed from the two fixed frames. Through the cooperation of multiple damping sockets installed on both sides of the bottom surfaces of the two filter frames and the damping slots opened on both sides of the top surfaces of the two fixed frames, the filter frame equipped with new filter screen is installed on the two fixed frames. The filter screen can be replaced, and the mobile frame is moved into the screening box to continue to cooperate with the screening device to screen the powder. The process is simple and convenient, saves time and effort, and improves the working efficiency of the screening device.

[0007] Preferably, one side of the screening box is symmetrically provided with slide grooves, there are two slide grooves and they cooperate with the two filter screens respectively, the screening box is located on one side of the slide groove and a protective frame is fixedly installed, one side of the protective frame is damped and a collecting box is installed, the collecting box and the protective frame cooperate with each other, there are two slide grooves, corresponding to the two filter screens respectively, the slide groove and the top surface of the filter screen are in a parallel state (the two filter screens are installed in an inclined state in the mobile frame with a certain slope, and the two filter screens are inclined toward one side of the slide groove, so as to facilitate timely processing of the impurities intercepted by the filter), the impurities filtered and intercepted by the two filter screens roll into the corresponding slide grooves, enter the protective frame through the slide grooves, and fall into the collection box installed on one side of the protective frame for collection. Through the above operation, the impurities filtered on the surface of the filter screen are prevented from accumulating after the filter screen is used for a long time, causing blockage of the filter screen and affecting the filtration of the powder.

[0008] Preferably, a fixing buckle is fixedly installed in the middle of one end of the top surface of the movable frame, and a threaded buckle is provided in the inner thread of the fixing buckle. The threaded buckle passes through the fixing buckle and is threadedly clamped in the screening box. The movable frame is limited and fixed in the installation groove through the cooperation of the fixing buckle and the threaded buckle, thereby completing the limited and fixed position of the two filter screens. A feed pipe is fixedly installed in the middle of the top surface of the screening box, and a feed hopper is fixedly installed on the top surface of the feed pipe. The feed pipe and the feed hopper are connected to each other. The powder to be filtered is poured into the feed hopper and enters the screening box through the feed pipe for multi-stage screening.

[0009] Preferably, a discharge hopper is fixedly installed in the middle of the bottom surface of the screening box, and the box for collecting and filtering the powder is placed under the discharge hopper, and the powder in the filtering and screening box is discharged through the discharge hopper. A handle is fixedly installed in the middle of one side of the collecting box, and a handle is fixedly installed in the middle of one side of the movable frame. The handle is used to facilitate taking the collecting box out of the protective frame, and the impurities filtered by the two filter nets collected in the collecting box are processed. A support frame is fixedly installed on the bottom surface of the screening box, and the support frame cooperates with the screening box. The screening box is supported and fixed by the support frame, and the device is installed in a designated area by the support frame to complete the powder screening work.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. In the utility model, when the filter screen needs to be replaced, the mobile frame is pulled out from the screening box with the cooperation of the two slide rails and the two sliding sleeves, and the filter frame with two filter screens installed is taken off from the two fixed frames. Through the cooperation of the multiple damping sockets respectively installed on both sides of the bottom surface of the two filter frames and the damping slots respectively opened on both sides of the top surface of the two fixed frames, the filter frame with new filter screens is installed on the two fixed frames, and the replacement of the two filter screens can be completed. The mobile frame is moved into the screening box and continues to cooperate with the screening device to screen the powder. The process is simple and convenient, saving time and labor, and improving the working efficiency of the screening device.

[0012] 2. In the utility model, there are two chutes, corresponding to two filter screens respectively. The chutes are parallel to the top surfaces of the filter screens. The impurities filtered and intercepted by the two filter screens roll into the corresponding chutes, enter the protective frame through the chutes, and fall into the collection box installed on one side of the protective frame for collection. Through the above operation, the impurities filtered on the surface of the filter screen are prevented from accumulating after the filter screen is used for a long time, causing the filter screen to be blocked and affecting the filtration of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of the screening device of the utility model.

[0015] Figure 2 This is a cross-sectional view of the internal structure of the screening box of the utility model.

[0016] Figure 3 For this utility model Figure 2 A magnified view of the structure at the center of the transfer.

[0017] Figure 4 This is a schematic diagram of the internal structure of the mobile rack of the utility model.

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at point B in the middle.

[0019] In the figure: 1. screening box; 11. feed pipe; 111. feed hopper; 12. discharge hopper; 13. mounting slot; 131. slide rail; 14. slide slot; 2. mobile frame; 21. fixed frame; 211. damping slot; 22. filter frame; 221. damping socket; 23. filter screen; 24. sliding sleeve; 25. fixing buckle; 26. threaded buckle; 27. handle; 3. protective frame; 31. collection box; 32. handle; 4. support frame. DETAILED DESCRIPTION

[0020] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Figure 1-5 As shown, the utility model provides a powder multi-stage screening device, including a screening box 1, a mobile frame 2 is slidably installed in one side of the screening box 1, a fixed frame 21 is symmetrically installed in the mobile frame 2, the number of the fixed frames 21 is two, the top surfaces of the two fixed frames 21 are detachably installed with filter frames 22, and the two filter frames 22 are respectively installed with filter screens 23, and the top surfaces of the two fixed frames 21 are symmetrically provided with uniformly distributed damping slots 211 on both sides, and the bottom surfaces of the two filter frames 22 are symmetrically provided with uniformly distributed damping sockets 221 on both sides, and the damping sockets 221 are dampingly inserted in the damping slots 211, a mounting groove 13 is opened in one side of the screening box 1, and slide rails 131 are fixedly installed at both ends of the bottom surface of the mounting groove 13, and sliding sleeves 24 are symmetrically installed at one end of both sides of the bottom surface of the mobile frame 2, and the two sliding sleeves 24 are respectively sleeved on the surfaces of the two slide rails 131, and the mobile frame 2 is slidably installed in the mounting groove 13 through the slide rails 131 and the sliding sleeves 24;

[0022] When the filter screen 23 needs to be replaced, with the cooperation of the two slide rails 131 and the two sliding sleeves 24, the mobile frame 2 is pulled out of the screening box 1, and the filter frame 22 equipped with the two filter screens 23 is removed from the two fixed frames 21. Through the cooperation of multiple damping sockets 221 installed on both sides of the bottom surfaces of the two filter frames 22 and the damping slots 211 opened on both sides of the top surfaces of the two fixed frames 21, the filter frame 22 equipped with the new filter screen 23 is installed on the two fixed frames 21. The replacement of the filter screen 23 can be completed, and the mobile frame 2 is moved to the screening box 1 to continue to cooperate with the screening device to screen the powder. The process is simple and convenient, saves time and effort, and improves the working efficiency of the screening device.

[0023] A chute 14 is symmetrically provided in one side of the screening box 1. There are two chute 14, which cooperate with two filter screens 23 respectively. A protective frame 3 is fixedly installed on one side of the screening box 1 located at the chute 14. A collecting box 31 is dampedly installed in one side of the protective frame 3. The collecting box 31 cooperates with the protective frame 3.

[0024] By adopting the above technical solution, there are two chutes 14, which correspond to two filter screens 23 respectively. The top surfaces of the chutes 14 and the filter screens 23 are in a parallel state (the two filter screens 23 are installed in an inclined state in the mobile frame 2 with a certain slope. The two filter screens 23 are inclined toward one side of the chutes 14, so as to facilitate timely processing of the impurities filtered and intercepted). The impurities filtered and intercepted by the two filter screens 23 roll into the corresponding chutes 14, enter the protective frame 3 through the chutes 14, and fall into the collection box 31 installed on one side of the protective frame 3 for collection. Through the above operation, the impurities filtered on the surface of the filter screen 23 are prevented from accumulating after the filter screen 23 is used for a long time, causing the filter screen 23 to be blocked, thereby affecting the filtration of the powder.

[0025] A fixing buckle 25 is fixedly installed in the middle of one end of the top surface of the mobile frame 2, and a threaded buckle 26 is clamped in the inner thread of the fixing buckle 25. The threaded buckle 26 passes through the fixing buckle 25 and is threadedly clamped in the screening box 1;

[0026] By adopting the above technical solution, the movable frame 2 is fixed in position in the installation groove 13 through the cooperation between the fixing buckle 25 and the threaded buckle 26, thereby completing the fixed position of the two filter screens 23.

[0027] A feed pipe 11 is fixedly installed in the middle of the top surface of the screening box 1, and a feed hopper 111 is fixedly installed on the top surface of the feed pipe 11, and the feed pipe 11 and the feed hopper 111 are interconnected;

[0028] By adopting the above technical solution, the powder to be filtered is poured into the feed hopper 111 and enters the screening box 1 through the feed pipe 11 for multi-stage screening.

[0029] A discharge hopper 12 is fixedly installed in the middle of the bottom surface of the screening box 1;

[0030] By adopting the above technical solution, the box for collecting the powder after filtering is placed below the discharge hopper 12, and the powder after filtering in the filtering and screening box 1 is discharged through the discharge hopper 12.

[0031] A handle 32 is fixedly installed in the middle of one side of the collection box 31, and a handle 27 is fixedly installed in the middle of one side of the moving rack 2;

[0032] By adopting the above technical solution, the collection box 31 can be easily taken out from the protection frame 3 through the handle 32, and the impurities filtered by the two filter screens 23 collected in the collection box 31 can be processed.

[0033] A support frame 4 is fixedly mounted on the bottom surface of the screening box 1, and the support frame 4 cooperates with the screening box 1;

[0034] By adopting the above technical solution, the screening box 1 is supported and fixed by the support frame 4, and the device is installed in a designated area by the support frame 4 to complete the screening of the powder.

[0035] Working principle: When the device is used to screen the powder to be filtered, the chute 14 and the top surface of the filter screen 23 are in a parallel state, and the impurities filtered and intercepted by the two filter screens 23 roll into the corresponding chute 14, enter the protection frame 3 through the chute 14, and fall into the collection box 31 installed on one side of the protection frame 3 for collection;

[0036] When the filter screen 23 needs to be replaced, with the cooperation of the two slide rails 131 and the two sliding sleeves 24, the mobile frame 2 is pulled out of the screening box 1, and the filter frame 22 equipped with the two filter screens 23 is removed from the two fixed frames 21. Through the cooperation of multiple damping sockets 221 installed on both sides of the bottom surfaces of the two filter frames 22 and the damping slots 211 opened on both sides of the top surfaces of the two fixed frames 21, the filter frame 22 equipped with the new filter screen 23 is installed on the two fixed frames 21. The replacement of the filter screen 23 can be completed, and the mobile frame 2 is moved into the screening box 1 to continue to cooperate with the screening device to screen the powder.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A powder multi-stage screening device, comprising a screening box (1), characterized in that: A movable frame (2) is slidably mounted in one side of the screening box (1), a fixed frame (21) is symmetrically mounted in the movable frame (2), the number of the fixed frames (21) is two, filter frames (22) are detachably mounted on the top surfaces of the two fixed frames (21), filter screens (23) are respectively mounted in the two filter frames (22), damping slots (211) are symmetrically opened on both sides of the top surfaces of the two fixed frames (21), damping sockets (221) are symmetrically mounted on both sides of the bottom surfaces of the two filter frames (22), and the damping sockets (221) are dampingly inserted in the damping slots (211); A mounting groove (13) is provided in one side of the screening box (1), and slide rails (131) are fixedly installed in both ends of the bottom surface of the mounting groove (13). Sliding sleeves (24) are symmetrically installed at one end of both sides of the bottom surface of the movable frame (2), and the two sliding sleeves (24) are respectively sleeved on the surfaces of the two sliding rails (131). The movable frame (2) is slidably installed in the mounting groove (13) through the sliding rails (131) and the sliding sleeves (24).

2. A powder multi-stage screening device as claimed in claim 1, characterized in that: A slide groove (14) is symmetrically provided in one side of the screening box (1), the slide grooves (14) are two in number and respectively cooperate with two filter screens (23), a protective frame (3) is fixedly installed on one side of the slide groove (14) of the screening box (1), a collecting box (31) is dampedly installed in one side of the protective frame (3), and the collecting box (31) cooperates with the protective frame (3).

3. A powder multi-stage screening device as claimed in claim 1, characterized in that: A fixing buckle (25) is fixedly mounted in the middle of one end of the top surface of the movable frame (2), a threaded buckle (26) is internally threadedly clamped in the fixing buckle (25), and the threaded buckle (26) passes through the fixing buckle (25) and is threadedly clamped in the screening box (1).

4. A powder multi-stage screening device as claimed in claim 1, characterized in that: A feed pipe (11) is fixedly mounted in the middle of the top surface of the screening box (1), and a feed hopper (111) is fixedly mounted on the top surface of the feed pipe (11); the feed pipe (11) and the feed hopper (111) are interconnected.

5. A powder multi-stage screening device as claimed in claim 1, characterized in that: A discharge hopper (12) is fixedly mounted in the middle of the bottom surface of the screening box (1).

6. A powder multi-stage screening device as claimed in claim 2, characterized in that: A handle (32) is fixedly mounted in the middle of one side of the collection box (31), and a pull handle (27) is fixedly mounted in the middle of one side of the movable frame (2).

7. A powder multi-stage screening device as claimed in claim 1, characterized in that: A support frame (4) is fixedly mounted on the bottom surface of the screening box (1), and the support frame (4) and the screening box (1) cooperate with each other.

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