Water-based paint sieving equipment

Abstract

The utility model relates to the technical field of power boxes, in particular to water-based paint screening equipment which comprises a supporting mechanism, a screening mechanism used for screening water-based paint and a slag discharging mechanism used for discharging screened impurities downwards. The water-based paint is driven to pass through the first-stage filter cover, the second-stage filter cover and the third-stage filter cover to be sieved and separated stage by stage through alternate forward and reverse rotation of the sieving barrel, and meanwhile, the scraping frame, the pull rod and the scraper move up and down at the first-stage filter cover, the second-stage filter cover and the third-stage filter cover in a reciprocating mode, so that the whole sieving speed is increased immediately. And moreover, blocked sieve holes can be cleaned, the slag discharging cone plate is downwards extruded by the scraping plate, and the sieved material slag on the slag discharging cone plate flows out downwards along the conical surface of the slag discharging cone plate, so that the sieved material slag can be conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of power boxes, in particular to a water-based paint screening device. Background Art

[0002] The search announcement number is CN 218011338 U. Four arc-shaped filters are set to filter the water-based paint. During the filtration, the motor drives the spiral blade to transport the water-based paint in the middle downward, and the impurities and particles filtered out by the four arc-shaped filters are collected by the dirt storage part.

[0003] In the above patent document, since the water-based paint has poor fluidity when being transported downward by the spiral blades, it cannot quickly pass through the filter net and be transported downward by the spiral blades, so it may affect the filtering and screening efficiency when filtering layer by layer. In addition, when the arc filter net is filtering the water-based paint, if any layer of the filter is blocked, the entire screening equipment will stop or reduce the screening speed. Utility Model Content

[0004] The purpose of the utility model is to provide a water-based paint screening device in order to solve the above-mentioned problem.

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

[0006] A water-based paint screening device comprises a supporting mechanism, a screening mechanism for screening the water-based paint, and a slag discharge mechanism for discharging screened impurities downwards;

[0007] The screening mechanism comprises a screening barrel, and a primary filter cover, a secondary filter cover and a tertiary filter cover are arranged inside the screening barrel, the secondary filter cover is located inside the tertiary filter cover, the primary filter cover is located inside the secondary filter cover, the upper ends of the primary filter cover, the secondary filter cover and the tertiary filter cover are all fixed by a limiting ring, and a hanging and sweeping mechanism is arranged between the primary filter cover, the secondary filter cover and the tertiary filter cover;

[0008] The slag discharge mechanism includes a slag discharge cone plate, which is located at the lower side of the first-stage filter cover, the second-stage filter cover and the third-stage filter cover. The annular frame is fixed inside the screening barrel, and the annular frame and the slag discharge cone plate cooperate with each other. A protective ring is fixed at the bottom side of the screening barrel, and a reset spring supporting the slag discharge cone plate is arranged inside the protective ring.

[0009] Preferably: the lower ends of the first-stage filter cover, the second-stage filter cover and the third-stage filter cover are all in contact with the conical surface of the slag discharge cone plate, three groups of guide blocks are provided on the outside of the limit ring, and guide grooves cooperating with the guide blocks are provided on the upper side of the inner part of the screening barrel.

[0010] Preferably, the outer side of the slag discharge cone plate and the inner side of the annular frame are slidably connected to each other, and an O-ring for preventing leakage of the water-based paint is arranged at the outer edge of the slag discharge cone plate.

[0011] Preferably: the hanging sweeping mechanism includes a scraping frame, which is located on the upper side of the screening barrel, and three groups of pull rods are arranged on the lower side of the scraping frame, and three groups of scrapers for scraping the primary filter cover, the secondary filter cover and the tertiary filter cover are fixed at the lower ends of the three groups of pull rods. A connecting shaft is fixed at the center position of the scraping frame, and the lower end of the connecting shaft passes through the center of the slag discharge cone plate and is fixed to the telescopic part of the scraping hydraulic rod, and the scraping hydraulic rod is fixed at the bottom side inside the screening barrel.

[0012] Preferably: the supporting mechanism includes a supporting frame, three groups of supporting legs are arranged on the outside of the supporting frame, a rotating motor for driving the screening barrel to rotate is fixed to the bottom of the supporting frame, two groups of annular grooves are arranged on the outside of the screening barrel, and a matching block matching with the annular groove of the screening barrel is opened on the upper end of the supporting leg.

[0013] Preferably, a coating outlet and a slag outlet are provided on the outside of the screening barrel, and the coating outlet is located on the upper side of the annular frame, and the slag outlet is close to the bottom of the screening barrel.

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

[0015] 1. The alternating forward and reverse rotation of the screening barrel drives the water-based paint to pass through the primary filter cover, the secondary filter cover, and the tertiary filter cover for screening and separation step by step. At the same time, the scraping frame, the pull rod and the scraper are used to move up and down at the primary filter cover, the secondary filter cover and the tertiary filter cover, thereby speeding up the entire screening speed and cleaning the blocked sieve holes;

[0016] 2. The scraper squeezes the slag discharge cone plate downward, and then the slag that has been screened on the slag discharge cone plate flows downward along its conical surface, so as to facilitate the cleaning of the slag after screening. 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 water-based paint screening device described in the utility model;

[0019] Figure 2 It is a cross-sectional view of a water-based paint screening device described in the utility model;

[0020] Figure 3 This is a partial parts diagram of a supporting mechanism of a water-based paint screening device described in the utility model;

[0021] Figure 4 This is a partial parts diagram of a screening barrel of a water-based paint screening device described in the utility model;

[0022] Figure 5 This is a partial parts diagram of a limit ring of a water-based paint screening device described in the utility model;

[0023] Figure 6 This is a partial parts diagram of a slag discharge cone plate of a water-based paint screening device described in the utility model;

[0024] Figure 7 This is a partial parts diagram of a three-stage filter cover of a water-based paint screening device described in the utility model;

[0025] Figure 8 This is a partial parts diagram of a hanging and sweeping mechanism of a water-based paint screening device described in the utility model.

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

[0027] 1. Support mechanism; 2. Screening mechanism; 3. Hanging and sweeping mechanism; 4. Slag discharge mechanism; 5. Paint outlet valve; 6. Filter residue outlet valve; 11. Support legs; 12. Support frame; 13. Rotating motor; 21. Screening barrel; 22. Primary filter cover; 23. Secondary filter cover; 24. Thirdary filter cover; 25. Limiting ring; 31. Scraping frame; 32. Pull rod; 33. Scraper; 34. Scraping hydraulic rod; 41. Slag discharge cone plate; 42. Ring frame; 43. Protective ring; 44. Reset spring. 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 water-based paint screening device includes a supporting mechanism 1, a screening mechanism 2 for screening the water-based paint, and a slag discharge mechanism 4 for discharging the screened impurities downward;

[0032] In this embodiment: the screening mechanism 2 includes a screening barrel 21, and a primary filter cover 22, a secondary filter cover 23 and a tertiary filter cover 24 are arranged inside the screening barrel 21, the secondary filter cover 23 is located inside the tertiary filter cover 24, and the primary filter cover 22 is located inside the secondary filter cover 23. The upper ends of the primary filter cover 22, the secondary filter cover 23 and the tertiary filter cover 24 are fixed by a limit ring 25, and a hanging and sweeping mechanism 3 is arranged between the primary filter cover 22, the secondary filter cover 23 and the tertiary filter cover 24. The screen barrel 21 is rotated to allow the water-based paint entering the primary filter cover 22 to undergo primary screening and separation, and at the same time, the water-based paint that has undergone primary screening and separation passes through the secondary filter cover 23 and enters the inner side of the tertiary filter cover 24, and then the water-based paint that has undergone secondary screening and separation is subjected to tertiary screening and separation through the tertiary filter cover 24 and allowed to enter between the screening barrel 21 and the tertiary filter cover 24, and the filter residue after three screening and separation will be accumulated at the slag discharge mechanism 4;

[0033] In this embodiment, the slag discharge mechanism 4 includes a slag discharge cone plate 41, which is located at the lower sides of the primary filter cover 22, the secondary filter cover 23 and the tertiary filter cover 24, the annular frame 42 is fixed inside the screening barrel 21, and the annular frame 42 cooperates with the slag discharge cone plate 41, a protective ring 43 is fixed at the bottom side of the screening barrel 21, and a return spring 44 supporting the slag discharge cone plate 41 is arranged on the inner side of the protective ring 43, the lower ends of the primary filter cover 22, the secondary filter cover 23 and the tertiary filter cover 24 are all in contact with the conical surface of the slag discharge cone plate 41, three groups of guide blocks are provided on the outer side of the limit ring 25, and a guide groove cooperating with the guide block is provided on the upper side of the screening barrel 21, the outer side of the slag discharge cone plate 41 and the inner side of the annular frame 42 are slidably connected to each other, and a spring for preventing water-based paint from leaking out is arranged at the outer edge of the slag discharge cone plate 41. The sieving barrel 21 has a coating outlet and a slag outlet on its outer side, and the coating outlet is located on the upper side of the annular frame 42, the slag outlet is close to the bottom of the sieving barrel 21, and a coating outlet valve 5 is fixed to the coating outlet, and a filter residue outlet valve 6 is fixed to the slag outlet. The annular frame 42 in the sieving barrel 21 is used to temporarily store the water-based coating after three screening separations, and can be discharged through the coating outlet of the sieving barrel 21 via the coating outlet valve 5, and the sifted slag will accumulate on the conical surface of the slag discharge cone plate 41, and then the slag discharge cone plate 41 is squeezed downward by the hanging and sweeping mechanism 3, and then the slag discharge cone plate 41 is moved downward to the lower side of the annular frame 42, and then the slag on the conical surface of the slag discharge cone plate 41 will be introduced between the sieving barrel 21 and the protective ring 43, and then the slag will be discharged and collected through the slag outlet via the filter residue outlet valve 6.

[0034] In this embodiment: the hanging sweeping mechanism 3 includes a scraping frame 31, which is located on the upper side of the screening barrel 21, and three groups of pull rods 32 are arranged on the lower side of the scraping frame 31, and three groups of scrapers 33 for scraping the primary filter cover 22, the secondary filter cover 23 and the tertiary filter cover 24 are fixed at the lower ends of the three groups of pull rods 32. A connecting shaft is fixed at the center position of the scraping frame 31, and the lower end of the connecting shaft passes through the center of the slag discharge cone plate 41 and is fixed to the telescopic part of the scraping hydraulic rod 34, and the scraping hydraulic rod 34 is fixed at the bottom side of the screening barrel 21. The telescopic part of the scraping hydraulic rod 34 is alternately extended or shortened to drive the connecting shaft to slide up and down on the slag discharge cone plate 41, and then the scraper 33 is driven by the scraping frame 31 and the pull rod 32 to slide up and down on the inner wall of the primary filter cover 22, the secondary filter cover 23 and the tertiary filter cover 24, thereby accelerating the entire screening speed while also preventing the sieve holes from being blocked.

[0035] In this embodiment: the support mechanism 1 includes a support frame 12, three groups of support legs 11 are arranged on the outside of the support frame 12, a rotating motor 13 for driving the screening barrel 21 to rotate is fixed to the bottom of the support frame 12, two groups of annular grooves are arranged on the outside of the screening barrel 21, and a matching block that matches the annular groove of the screening barrel 21 is opened at the upper end of the support leg 11.

[0036] Working principle: when in use, first slowly pour the water-based paint to be screened into the first-level filter cover 22, and at the same time, the rotating motor 13 drives the screening barrel 21 to rotate alternately forward and reverse on the supporting leg 11. At this time, the rotation of the screening barrel 21 allows the water-based paint entering the first-level filter cover 22 to undergo a first-level screening and separation, and at the same time, the water-based paint that has undergone the first-level screening and separation passes through the second-level filter cover 23 and enters the inner side of the third-level filter cover 24, and then the water-based paint that has undergone the second-level screening and separation is subjected to a third-level screening and separation through the third-level filter cover 24 and allowed to enter between the screening barrel 21 and the third-level filter cover 24, and the filter residue after the three-level screening and separation will be accumulated at the annular frame 42;

[0037] In addition, when the screening barrel 21 is screening the water-based paint, the telescopic part of the scraping hydraulic rod 34 is alternately extended or shortened to drive the connecting shaft to slide up and down on the slag discharge cone plate 41, and then the scraping frame 31 and the pull rod 32 drive the scraper 33 to slide up and down on the inner walls of the primary filter cover 22, the secondary filter cover 23 and the tertiary filter cover 24, thereby accelerating the entire screening speed and cleaning some blocked sieve holes;

[0038] The screened water-based paint flows out and is collected through the annular frame 42 along the paint outlet and the paint outlet valve 5 on the sieving barrel 21, and the sifted slag is accumulated on the conical surface of the slag discharge cone plate 41. When the slag on the conical surface accumulates to a certain extent, the water-based paint is stopped from being poured into the sieving mechanism 2, and the scraping frame 31 and the pull rod 32 are driven by the telescopic part of the scraping hydraulic rod 34 to make the scraper 33 fit on the conical surface of the slag discharge cone plate 41, and then the slag discharge cone plate 41 will follow the scraping frame 31 to move in the opposite direction. The slag material on the conical surface of the slag discharge cone plate 41 will fall into the position between the screening barrel 21 and the protective ring 43, and then the slag material on the conical surface of the slag discharge cone plate 41 will be introduced into the space between the screening barrel 21 and the protective ring 43, and then the slag material will be discharged and collected through the slag outlet and the filter residue outlet valve 6.

[0039] 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 water-based paint screening device, comprising a supporting mechanism (1), characterized in that: It also includes a screening mechanism (2) for screening the water-based paint and a slag discharge mechanism (4) for discharging the screened impurities downwards; The screening mechanism (2) comprises a screening barrel (21), wherein a primary filter cover (22), a secondary filter cover (23) and a tertiary filter cover (24) are arranged inside the screening barrel (21), wherein the secondary filter cover (23) is located inside the tertiary filter cover (24), and the primary filter cover (22) is located inside the secondary filter cover (23), and the upper ends of the primary filter cover (22), the secondary filter cover (23) and the tertiary filter cover (24) are all fixed by a limiting ring (25), and a hanging and sweeping mechanism (3) is arranged between the primary filter cover (22), the secondary filter cover (23) and the tertiary filter cover (24); The slag discharge mechanism (4) comprises a slag discharge cone plate (41), the slag discharge cone plate (41) is located at the lower side of the primary filter cover (22), the secondary filter cover (23) and the tertiary filter cover (24), the annular frame (42) is fixed inside the screening barrel (21), and the annular frame (42) and the slag discharge cone plate (41) cooperate with each other, a protective ring (43) is fixed at the bottom side of the screening barrel (21), and a return spring (44) supporting the slag discharge cone plate (41) is arranged inside the protective ring (43).

2. A water-based paint screening device according to claim 1, characterized in that: The lower ends of the primary filter cover (22), the secondary filter cover (23) and the tertiary filter cover (24) are all in contact with the conical surface of the slag discharge cone plate (41), three groups of guide blocks are provided on the outer side of the limit ring (25), and a guide groove cooperating with the guide block is provided on the upper side of the interior of the screening barrel (21).

3. The water-based paint screening device according to claim 1, characterized in that: The outer side of the slag discharge cone plate (41) and the inner side of the annular frame (42) are slidably connected to each other, and an O-ring for preventing leakage of water-based paint is provided at the outer edge of the slag discharge cone plate (41).

4. The water-based paint screening device according to claim 1, characterized in that: The hanging sweeping mechanism (3) comprises a scraping frame (31), the scraping frame (31) is located on the upper side of the screening barrel (21), three groups of pull rods (32) are arranged on the lower side of the scraping frame (31), and three groups of scrapers (33) for scraping the primary filter cover (22), the secondary filter cover (23) and the tertiary filter cover (24) are fixed at the lower ends of the three groups of pull rods (32), a connecting shaft is fixed at the center position of the scraping frame (31), and the lower end of the connecting shaft passes through the center of the slag discharge cone plate (41) and is fixed to the telescopic part of the scraping hydraulic rod (34), and the scraping hydraulic rod (34) is fixed at the bottom side position inside the screening barrel (21).

5. The water-based paint screening device according to claim 4, characterized in that: The support mechanism (1) comprises a support frame (12), three groups of support legs (11) are arranged on the outside of the support frame (12), a rotating motor (13) for driving the screening barrel (21) to rotate is fixed to the bottom of the support frame (12), two groups of annular grooves are arranged on the outside of the screening barrel (21), and a matching block for matching with the annular groove of the screening barrel (21) is provided at the upper end of the support leg (11).

6. The water-based paint screening device according to claim 1, characterized in that: The outside of the screening barrel (21) is provided with a coating outlet and a slag outlet, wherein the coating outlet is located on the upper side of the annular frame (42), and the slag outlet is close to the bottom of the screening barrel (21).

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