Powder filtering and screening device

Abstract

The utility model relates to the field of electrostatic spraying machines, in particular to a powder filtering and screening device which comprises a supporting mechanism, a screening mechanism used for shaking powder up and down and uniformly vibrating the powder and a sliding mechanism used for driving the screening mechanism to slide on the two sides, and a driving structure is arranged in the middle of the supporting mechanism. The screening frame is driven to move up and down through the connecting frame, meanwhile, vibration is transmitted to the screening frame through the vibration motor, powder can be rapidly spread and screened immediately, the cracking rods are turned over and reset to a certain degree through the inclined screening frame, and screened blocky powder is knocked and smashed immediately. And the broken powder is sieved and separated again, so that the waste of the powder is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electrostatic spraying machines, in particular to a powder filtering and screening device. Background Art

[0002] According to the patent document with announcement number CN218517170U, the powder on the filter plate can be screened by horizontal displacement, and the screened material is collected from the inclined plate below. After the screening is completed, the flip plate is opened and the filter plate is pulled out, so that the agglomerates on the filter plate fall into the inclined plate and fall into the collection bucket through the flip plate;

[0003] In the above structure, the bulk powder will accumulate and affect the entire screening speed. If the bulk powder is collected, it needs to be crushed and screened again or thrown away directly. Such operation is relatively cumbersome and inefficient, and it is also easy to cause waste of powder. Utility Model Content

[0004] The purpose of the utility model is to provide a powder filtering and screening device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A powder filtering and screening device comprises a supporting mechanism, a driving structure is arranged in the middle of the supporting mechanism, a screening mechanism for shaking and vibrating the powder evenly up and down, and a sliding mechanism for driving the screening mechanism to slide on both sides;

[0007] The screening mechanism comprises a connecting frame, the two ends of the connecting frame are respectively hinged with screening frames, the front and rear ends of the connecting frame are respectively fixed with arc-shaped protrusions, a vibration motor is fixed at the middle position of the bottom of the connecting frame to drive the vibration, a connecting rod is fixed at one end of the screening frame away from the connecting frame, and a crushing rod is movably connected to one side of the screening frame close to the connecting rod;

[0008] The sliding mechanism comprises a sliding frame, one end of which is fixed with a reset spring, a rotating rod is arranged at the lower side of the sliding frame, cams are fixed at the front and rear ends of the rotating rod, and an annular sleeve is rotatably connected at the front and rear sides of the sliding frame, and the cam is located on one side of the annular sleeve.

[0009] Preferably: the screening frame is provided with an upwardly inclined chute at the position of the breaking rod, and the breaking rod is an arc-shaped surface near the bottom side of the screening frame.

[0010] Preferably, a concave groove is provided in the middle of the sliding frame, and the arc-shaped protrusion is slidably connected in the concave groove of the sliding frame.

[0011] Preferably, a guide groove is provided on the sliding frame near the connecting rod, and the end of the connecting rod is movably connected in the guide groove of the sliding frame.

[0012] Preferably, the supporting mechanism comprises two slide plates which are symmetrically arranged front to back, support frames are fixed to both ends of the slide plates respectively, and an export plate with an arched structure is fixed between the two slide plates.

[0013] Preferably, the bottom of the sliding frame is slidably connected to the top of the slide plate, and one end of the return spring is fixed to the inner side of the support frame.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] 1. The connecting frame drives the screening frame to move up and down, and the vibration motor is used to transmit the vibration to the screening frame, which will then quickly flatten and screen the powder;

[0016] 2. Use the inclined screening frame to flip and reset the crushing rod to a certain extent, and then knock and crush the sieved block powder, and then let the crushed powder be re-screened and separated to reduce the waste of powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 labor.

[0018] Figure 1 It is a structural schematic diagram of a powder filtering and screening device described in the utility model;

[0019] Figure 2 It is a cross-sectional view of a powder filtering and screening device described in the utility model;

[0020] Figure 3 It is a partial cross-sectional view of a crushing rod of a powder filtering and screening device described in the utility model;

[0021] Figure 4 This is a partial parts diagram of a supporting mechanism of a powder filtering and screening device described in the utility model;

[0022] Figure 5 This is a partial parts diagram of a sliding frame of a powder filtering and screening device described in the utility model;

[0023] Figure 6 This is a partial parts diagram of the driving structure of a powder filtering and screening device described in the utility model;

[0024] Figure 7 This is a partial parts diagram of a vibration motor of a powder filtering and screening device described in the utility model;

[0025] Figure 8 This is a partial parts diagram of a screening frame of a powder filtering and screening device described in the utility model.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Screening mechanism; 2. Sliding mechanism; 3. Driving structure; 4. Support mechanism; 11. Screening frame; 12. Connecting frame; 13. Arc-shaped protrusion; 14. Breaking rod; 15. Connecting rod; 16. Vibrating motor; 21. Sliding frame; 22. Reset spring; 23. Rotating rod; 24. Cam; 25. Annular sleeve; 31. Driving motor; 32. Driving gear; 33. Driven gear; 41. Support frame; 42. Slide plate; 43. Export plate. DETAILED DESCRIPTION

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] like Figure 1-Figure 8 As shown, a powder filtering and screening device comprises a supporting mechanism 4, a driving structure 3 is arranged in the middle of the supporting mechanism 4, a screening mechanism 1 for shaking and vibrating the powder evenly up and down, and a sliding mechanism 2 for driving the screening mechanism 1 to slide on both sides;

[0032] In this embodiment: the support mechanism 4 includes two slide plates 42 that are symmetrically arranged front and back, and support frames 41 are fixed at both ends of the slide plates 42. An arch-shaped export plate 43 is fixed between the two slide plates 42. The two support frames 41 and the slide plates 42 are used to support the sliding mechanism 2 and the driving structure 3 respectively. At the same time, the export plate 43 can be used to quickly pile up the screened powder together.

[0033] In this embodiment, the screening mechanism 1 includes a connecting frame 12, the two ends of the connecting frame 12 are respectively hinged with screening frames 11, the front and rear ends of the connecting frame 12 are respectively fixed with arc-shaped protrusions 13, and the middle position of the bottom of the connecting frame 12 is fixed with a vibration motor 16 for driving the vibration thereof, and the end of the screening frame 11 away from the connecting frame 12 is fixed with a connecting rod 15, and the side of the screening frame 11 close to the connecting rod 15 is movably connected with a crushing rod 14, and the screening frame 11 is provided with an upwardly inclined chute at the position of the crushing rod 14, and the crushing rod 14 is close to the bottom side of the screening frame 11 as an arc surface, and the connecting frame 12 is driven to move upward by the arc-shaped protrusions 13, and then the connecting frame 12 drives one end of the screening frames 11 on both sides to lift upward, and in the process, the crushing The rod 14 is turned upward with its connection position with the screening frame 11 as the center, and the powder on the screening frame 11 rolls down to the position of the crushing rod 14 along its inclined slope. In this process, a certain degree of screening process is completed, and the block powder rolls to the flipped crushing rod 14. When the arc-shaped protrusion 13 drives the connecting frame 12 and the screening frame 11 to be in the same horizontal position, the crushing rod 14 rotates in the opposite direction and knocks and crushes the block powder on its lower side. Then the arc-shaped protrusion 13 drives the connecting frame 12 to fall to the lowest position of the sliding frame 21, and then the two screening frames 11 are close to each other and tilted downward. At this time, the crushed powder will slide toward the connecting frame 12, and then pass through the sieve holes of the screening frame 11 for re-screening;

[0034] The sliding mechanism 2 includes a sliding frame 21, a return spring 22 is fixed at one end of the sliding frame 21, a rotating rod 23 is arranged at the lower side of the sliding frame 21, cams 24 are fixed at the front and rear ends of the rotating rod 23, an annular sleeve 25 is rotatably connected to the front and rear sides of the sliding frame 21, the cam 24 is located on one side of the annular sleeve 25, a concave groove is provided in the middle position of the sliding frame 21, and the arc-shaped protrusion 13 is slidably connected in the concave groove of the sliding frame 21, a guide groove is provided near the position of the connecting rod 15 of the sliding frame 21, the end of the connecting rod 15 is movably connected in the guide groove of the sliding frame 21, the bottom of the sliding frame 21 is slidably connected to the top of the slide plate 42, and one end of the return spring 22 is fixed to the bottom of the sliding frame 21. It is fixed on the inner side of the support frame 41, and the rotation of the rotating rod 23 is used to simultaneously drive the cams 24 on the front and rear sides to rotate. The arc-shaped protrusion 13 is first pushed upward by the rotation of the cam 24. When the arc-shaped protrusion 13 is rotated, the annular sleeve 25 and the sliding frame 21 are pushed by the cam 24, and then the sliding frame 21 starts to move to one side along the slide plate 42, and the reset spring 22 is compressed. When the cam 24 rotates past the annular sleeve 25, the reset spring 22 is used to push the sliding frame 21 back along the slide plate 42 to perform a reset action, and then the entire sliding frame 21 performs a reciprocating linear motion on the support frame 41.

[0035] In this embodiment: the driving structure 3 includes a driving motor 31, which is fixed in the middle position of the slide plate 42. A driving gear 32 is fixed to the rotating part of the driving motor 31. A driven gear 33 is meshed on the upper side of the driving gear 32. The driven gear 33 is fixed to the outside of the rotating rod 23, and the driven gear 33 is located between the cam 24 and the sliding frame 21. The driving motor 31 is used to drive the driving gear 32 to rotate, and the rotating rod 23 is driven to rotate through the transmission of the driving gear 32 and the driven gear 33.

[0036] Working principle: When in use, firstly, the powder to be screened is placed on the two screening frames 11 respectively, and then the driving motor 31 is used to drive the driving gear 32 to rotate, and the driving gear 32 and the driven gear 33 are used to drive the rotating rod 23 to rotate, and when the rotating rod 23 rotates, the cams 24 on the front and rear sides thereof are driven to rotate at the same time, and the arc-shaped protrusion 13 is first pushed upward by the rotation of the cam 24;

[0037] The arc-shaped protrusion 13 drives the connecting frame 12 to move upward, and then the connecting frame 12 drives one end of the screening frame 11 on both sides to lift upward. In this process, the crushing rod 14 is turned upward with the connection position between it and the screening frame 11 as the center. At the same time, the powder on the screening frame 11 rolls down to the position of the crushing rod 14 along its inclined slope. In this process, the powder rolls from the inside of the screening frame 11, and then a certain degree of screening is completed;

[0038] When the arc-shaped protrusion 13 is rotated, the arc-shaped protrusion 13 drives the connecting frame 12 to fall back downward. When the arc-shaped protrusion 13 drives the connecting frame 12 and the screening frame 11 to be at the same horizontal position, the crushing rod 14 rotates in the opposite direction and crushes the block powder on the lower side thereof.

[0039] Then the arc-shaped protrusion 13 drives the connecting frame 12 to fall to the lowest position of the sliding frame 21, and then the two screening frames 11 are close to each other and tilted downward. At this time, the crushed powder will slide toward the connecting frame 12, and then pass through the sieve holes of the screening frame 11 for re-screening;

[0040] In addition, when the entire connecting frame 12 is in motion, the vibration motor 16 at the bottom thereof is fully started, and the vibration is transmitted to the two screening frames 11 through the connecting frame 12, thereby completing the rapid leveling of the powder;

[0041] When the cam 24 rotates to the position of the annular sleeve 25, the annular sleeve 25 and the sliding frame 21 are pushed by the cam 24, and then the sliding frame 21 starts to move to one side along the slide plate 42, and the reset spring 22 is compressed. When the cam 24 rotates past the annular sleeve 25, the reset spring 22 is used to push the sliding frame 21 back along the slide plate 42 to perform a reset action, and then the entire sliding frame 21 performs a reciprocating linear motion on the support frame 41, thereby accelerating the powder screening process in the screening frame 11.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A powder filtering and screening device, comprising a support mechanism (4), wherein a driving structure (3) is arranged in the middle of the support mechanism (4), characterized in that: It also includes a screening mechanism (1) for shaking and vibrating the powder evenly up and down, and a sliding mechanism (2) for driving the screening mechanism (1) to slide on both sides; The screening mechanism (1) comprises a connecting frame (12), the two ends of the connecting frame (12) are respectively hinged with screening frames (11), the front and rear ends of the connecting frame (12) are respectively fixed with arc-shaped protrusions (13), a vibration motor (16) is fixed at the middle position of the bottom of the connecting frame (12) to drive the connecting frame (12) to vibrate, a connecting rod (15) is fixed at one end of the screening frame (11) away from the connecting frame (12), and a crushing rod (14) is movably connected to the side of the screening frame (11) close to the connecting rod (15); The sliding mechanism (2) comprises a sliding frame (21), a return spring (22) is fixed at one end of the sliding frame (21), a rotating rod (23) is arranged at the lower side of the sliding frame (21), cams (24) are fixed at the front and rear ends of the rotating rod (23), and an annular sleeve (25) is rotatably connected at the front and rear sides of the sliding frame (21), and the cam (24) is located at one side of the annular sleeve (25).

2. A powder filtering and screening device according to claim 1, characterized in that: The screening frame (11) is provided with an upwardly inclined sliding groove at the position of the breaking rod (14), and the breaking rod (14) is an arc-shaped surface near the bottom side of the inside of the screening frame (11).

3. A powder filtering and screening device according to claim 1, characterized in that: A concave groove is provided in the middle of the sliding frame (21), and the arc-shaped protrusion (13) is slidably connected in the concave groove of the sliding frame (21).

4. A powder filtering and screening device according to claim 1, characterized in that: The sliding frame (21) is provided with a guide groove near the connecting rod (15), and the end of the connecting rod (15) is movably connected in the guide groove of the sliding frame (21).

5. The powder filtering and screening device according to claim 1, characterized in that: The support mechanism (4) comprises two slide plates (42) arranged symmetrically in front and back, support frames (41) are respectively fixed at both ends of the slide plates (42), and an arched structured lead-out plate (43) is fixed between the two slide plates (42).

6. A powder filtering and screening device according to claim 5, characterized in that: The bottom of the sliding frame (21) is slidably connected to the top of the slide plate (42), and one end of the return spring (22) is fixed to the inner side of the support frame (41).

Images