Powder recovery device for spraying processing

Abstract

The utility model discloses a powder recovery device for spraying processing, which belongs to the technical field of metal spraying processing and comprises a shell, and a filtering and collecting device for filtering impurities in powder and collecting the powder and a transfer device for transferring and recovering the collected powder are mounted on the shell. The filtering and collecting device comprises a filtering assembly used for filtering powder and a collecting assembly used for collecting the powder. By means of the mode, powder can be filtered in the powder collecting process through the arrangement of the filtering assembly, it is avoided that follow-up powder recycling is affected by impurities, the filtering assembly drives air to flow so as to synchronously drive part of the collecting assembly to operate, the powder is automatically scraped, and the powder collecting efficiency is improved. The suction port is prevented from being blocked due to powder bonding; and through arrangement of a turning plate, the situation that the powder is driven by an exhaust fan to move upwards from the collecting bin, and consequently the recycling effect is poor is avoided, through arrangement of a cover plate, the inner side of the turning assembly can be regularly cleaned, and powder accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metal spraying processing, in particular to a powder recovery device for spraying processing. Background Art

[0002] Powder spraying on metal surfaces can effectively improve the wear resistance, corrosion resistance and aesthetics of the metal surface. During the spraying process, a large amount of invalid powder is generally generated and scattered in the spray room. In order to improve resource utilization efficiency, reduce costs and reduce environmental pollution, recycling equipment is usually used to recycle the powder for secondary use.

[0003] For example, Chinese patent application CN105107694B discloses a powder coating recovery device, comprising a spray booth bottom platform with an exhaust port provided at the side end and a compressed air duct provided with an air vent, wherein the compressed air duct is located on the spray booth bottom platform, and the air vent faces the exhaust port. By providing a blowing device, accumulated powder far away from the exhaust port is blown to the exhaust port, and the accumulated powder is recovered in a timely and comprehensive manner. By setting a different blowing direction for each air vent, the maximum blowing effect is achieved with the minimum air output.

[0004] However, the powder coating recovery device cannot filter the powder during use, and impurities will enter the exhaust port for recovery along with the powder, causing powder pollution. At the same time, a large amount of powder accumulated in the exhaust port may cause the exhaust port to be blocked, thereby weakening the subsequent suction effect.

[0005] Based on this, the utility model designs a powder recovery device for spraying processing to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a powder recovery device for spraying processing.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A powder recovery device for spraying processing, comprising a shell,

[0009] The housing is provided with a filtering and collecting device for filtering impurities in the powder and collecting the powder, and a transporting device for transporting and recycling the collected powder;

[0010] The filtering and collecting device comprises a filtering component for filtering powder and a collecting component for collecting powder. The filtering component and the collecting component are connected to the outer shell, and the collecting component is located inside the filtering component.

[0011] Furthermore, the shell is divided into three parts, upper, middle and lower, by a partition. The upper and lower parts are hollow inside, and the middle part is provided with a deep groove with a front end opening, and the deep groove is used to accommodate the filter assembly and processed products.

[0012] Furthermore, the filter assembly includes an exhaust fan, an exhaust pipe and three filter cartridges. The exhaust fan is fixedly installed at the upper end of the outer shell. The air supply direction of the exhaust fan is from bottom to top. The exhaust pipe is a four-way pipe. The lower end of the exhaust fan is connected to one end of the exhaust pipe, and the other three ends of the exhaust pipe are connected to the three filter cartridges respectively. The upper and lower ends of the exhaust pipe are respectively connected to the inner side of the upper part of the outer shell, and the three filter cartridges are fixedly installed in the through groove in the middle part of the outer shell.

[0013] Furthermore, there are three collecting components, which are respectively installed on the inner upper ends of the three filter cartridges. The collecting components include a filter screen, a scraper frame and a scraper. The filter screen is fixedly installed on the upper middle partition of the outer shell. The filter screen is located above the filter cartridge. The scraper frame is located at the inner upper end of the filter cartridge and is fixedly connected to the outer shell. The scraper consists of a rotating shaft and multiple blades. The multiple blades are fixedly installed on the outside of the rotating shaft. The blades of the scraper are inclined and have a wing-shaped cross-section. The rotating shaft of the scraper is rotatably installed on the upper end of the scraper frame. The upper end of the blades of the scraper is fitted and slidably connected to the filter screen.

[0014] Furthermore, the transfer device includes a turnover assembly and a conveying assembly, and the turnover assembly and the conveying assembly are connected to the outer shell.

[0015] Furthermore, the flip assembly includes three flaps, a connecting rod and a motor. The three flaps are correspondingly located below the three filter cartridges. The three flaps are rotatably connected to the outer shell. A plurality of connecting rods are fixedly installed between the three flaps. The connecting rods at both ends are rotatably connected to the inner side of the lower part of the outer shell. The motor is fixedly installed on the outside of the outer shell, and the output end of the motor is fixedly connected to one end of the connecting rod.

[0016] Furthermore, the conveying assembly includes a collecting bin, a cover plate and a pneumatic powder pump. The collecting bin is located on the inner side of the lower part of the shell. A through hole is opened at the rear end of the collecting bin for use with the pneumatic powder pump. A through hole is opened at the front end of the collecting bin for use with the cover plate. The cover plate is fixedly installed at the front end of the collecting bin and fixedly connected to the shell by bolts. The pneumatic powder pump is fixedly installed at the rear end of the collecting bin and fixedly connected to the shell. The feed port of the pneumatic powder pump is connected to the through hole at the rear end of the collecting bin.

[0017] Furthermore, the left and right ends of the collecting bin are gradually lowered from the outside to the inside, and the through hole at the rear end of the collecting bin is located at the lowest point on the inside of the collecting bin.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The setting of the filter component allows the powder to be filtered during the powder collection process, thereby preventing impurities from affecting the subsequent recovery of the powder. The filter component drives the air flow, thereby synchronously driving the partial operation of the collection component, automatically scraping the powder, and preventing the suction port from being blocked due to powder adhesion;

[0019] 2. The setting of the flip plate can prevent the powder from being driven upward by the exhaust fan from the flip component, resulting in poor recovery effect. The setting of the conveying component can regularly clean the inside of the flip component to avoid powder accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 This is a three-dimensional diagram of a powder recovery device for spraying processing according to the present invention;

[0022] Figure 2 This is a front view of a powder recovery device for spraying processing according to the present invention;

[0023] Figure 3 This is a left side view of a powder recovery device for spraying processing according to the present invention;

[0024] Figure 4 To follow Figure 2 AA direction cross-sectional view;

[0025] Figure 5 To follow Figure 3 BB direction cross-sectional view;

[0026] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0027] The numbers in the figure represent:

[0028] 1. Housing; 2. Filter-collecting device; 21. Filter assembly; 211. Exhaust fan; 212. Exhaust duct; 213. Filter cartridge; 22. Collection assembly; 221. Filter screen; 222. Scraper rack; 223. Scraper; 3. Transfer device; 31. Turnover assembly; 311. Flip plate; 312. Connecting rod; 313. Motor; 32. Conveying assembly; 321. Collection bin; 322. Cover plate; 323. Pneumatic powder pump. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0030] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-6 , a powder recovery device for spraying processing, comprising a housing 1,

[0032] The housing 1 is provided with a filtering and collecting device 2 for filtering impurities in the powder and collecting the powder, and a transporting device 3 for transporting and recycling the collected powder;

[0033] The filtering and collecting device 2 includes a filtering component 21 for filtering powder and a collecting component 22 for collecting powder. The filtering component 21 and the collecting component 22 are connected to the housing 1 , and the collecting component 22 is located inside the filtering component 21 .

[0034] When the powder recovery device for spraying processing is in normal use, the filter component 21 is started intermittently, and the filter component 21 sucks the powder into the inside of the filter component 21 and filters out impurities. The air flow of the filter component 21 drives the collection component 22 to operate to avoid powder adhesion. When the filter component 21 stops, the powder falls onto the transfer device 3 to be collected and recycled. The setting of the filter component 21 allows the powder to be filtered during the collection process to avoid impurities affecting the subsequent recovery of the powder. The air flow driven by the filter component 21 simultaneously drives the partial operation of the collection component 22, automatically scrapes off the powder, and avoids the suction port being blocked due to powder adhesion.

[0035] The housing 1 is divided into three parts, upper, middle and lower, by a partition. The upper and lower parts are hollow inside, and the middle part is provided with a deep groove with an open front end, which is used to accommodate the filter assembly 21 and the processed products.

[0036] The filter assembly 21 includes an exhaust fan 211, an exhaust pipe 212 and three filter cartridges 213. The exhaust fan 211 is fixedly installed at the upper end of the shell 1. The air supply direction of the exhaust fan 211 is from bottom to top. The exhaust pipe 212 is a four-way pipe. The lower end of the exhaust fan 211 is connected to one end of the exhaust pipe 212, and the other three ends of the exhaust pipe 212 are correspondingly connected to the three filter cartridges 213. The upper and lower ends of the exhaust pipe 212 are respectively connected to the inner side of the upper part of the shell 1 and fixedly connected. The three filter cartridges 213 are fixedly installed in the through groove in the middle part of the shell 1.

[0037] There are three collecting components 22, and the three collecting components 22 are respectively installed at the inner upper ends of the three filter cartridges 213. The collecting components 22 include a filter screen 221, a scraper frame 222 and a scraper 223. The filter screen 221 is fixedly installed on the upper middle partition of the outer shell 1. The filter screen 221 is located above the filter cartridge 213. The scraper frame 222 is located at the inner upper end of the filter cartridge 213 and is fixedly connected to the outer shell 1. The scraper 223 consists of a rotating shaft and a plurality of fan blades. The plurality of fan blades are fixedly installed on the outside of the rotating shaft. The blades of the scraper 223 are inclined and have a wing-shaped cross-section. The rotating shaft of the scraper 223 is rotatably installed on the upper end of the scraper frame 222. The upper end of the fan blade of the scraper 223 is fitted and slidably connected with the filter screen 221.

[0038] The transfer device 3 includes a turnover assembly 31 and a conveying assembly 32 , and the turnover assembly 31 and the conveying assembly 32 are connected to the housing 1 .

[0039] The flip assembly 31 includes three flaps 311, a connecting rod 312 and a motor 313. The three flaps 311 are correspondingly located below the three filter cartridges 213. The three flaps 311 are rotatably connected to the outer shell 1. A plurality of connecting rods 312 are fixedly installed between the three flaps 311. The connecting rods 312 at both ends are rotatably connected to the inner side of the lower part of the outer shell 1. The motor 313 is fixedly installed on the outside of the outer shell 1, and the output end of the motor 313 is fixedly connected to the connecting rod 312 at one end.

[0040] The conveying assembly 32 includes a collecting bin 321, a cover plate 322 and a pneumatic powder pump 323. The collecting bin 321 is located on the inner side of the lower part of the outer shell 1. A through hole is provided at the rear end of the collecting bin 321 for use with the pneumatic powder pump 323. A through hole is provided at the front end of the collecting bin 321 for use with the cover plate 322. The cover plate 322 is fixedly installed at the front end of the collecting bin 321 and is fixedly connected to the outer shell 1 by bolts. The pneumatic powder pump 323 is fixedly installed at the rear end of the collecting bin 321 and is fixedly connected to the outer shell 1. The feed port of the pneumatic powder pump 323 is communicated with the through hole at the rear end of the collecting bin 321.

[0041] The left and right ends of the collecting bin 321 are gradually lowered from the outside to the inside, and the through hole at the rear end of the collecting bin 321 is located at the lowest point on the inside of the collecting bin 321 .

[0042] When the powder recovery device for spraying processing is in normal use, the exhaust fan 211 is started intermittently, and the exhaust fan 211 drives the air to flow through the middle part of the shell 1 through the filter cartridge 213 toward the exhaust pipe 212, so that the powder in the deep groove in the middle of the shell 1 follows the air into the filter cartridge 213, and the filter cartridge 213 isolates the impurities on the outside. Part of the powder entering the filter cartridge 213 falls downward onto the flap 311, and the other part follows the air upward and is blocked by the filter screen 221. The air flow simultaneously drives the scraper 223 to rotate, and the scraper 223 rotates to scrape off the powder adhered to the filter screen 221. When the exhaust fan 211 stops, the powder falls onto the flap 311, and the motor 313 is started at the same time. The motor 313 drives the connecting rod 312 to rotate, and the connecting rod 312 drives the flap 311 to rotate. 11 rotates, and the rotation of the flap 311 drives the powder to fall into the collecting bin 321. The powder entering the collecting bin 321 slides to the middle lower part along the side wall of the collecting bin 321, and the pneumatic powder pump 323 is started to extract the powder in the collecting bin 321 for recovery. The cover 322 is opened regularly to clean the inside of the collecting bin 321. The setting of the flap 311 prevents the powder from being driven upward from the collecting bin 321 by the exhaust fan 211, resulting in poor recovery effect. The rotation of the scraper 223 driven by the exhaust fan 211 prevents the powder from adhering to the bottom of the filter screen 221, resulting in poor suction effect of the exhaust fan 211. The setting of the cover 322 can regularly clean the inside of the flip assembly 31 to prevent powder accumulation from causing adhesion and thus clogging the feed port of the pneumatic powder pump 323.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A powder recovery device for spraying processing, comprising a housing (1), characterized in that: The housing (1) is provided with a filtering and collecting device (2) for filtering impurities in the powder and collecting the powder, and a transporting device (3) for transporting and recycling the collected powder; The filtering and collecting device (2) comprises a filtering component (21) for filtering powder and a collecting component (22) for collecting powder. The filtering component (21) and the collecting component (22) are connected to the housing (1), and the collecting component (22) is located inside the filtering component (21).

2. The spraying powder recovery device according to claim 1, characterized in that: The housing (1) is divided into three parts, an upper part, a middle part and a lower part, by a partition. The interiors of the upper and lower parts are hollow, and the middle part is provided with a deep groove with an open front end, and the deep groove is used to accommodate the filter assembly (21) and the processed product.

3. The spraying powder recovery device according to claim 2, characterized in that: The filter assembly (21) comprises an exhaust fan (211), an exhaust pipe (212) and three filter cartridges (213). The exhaust fan (211) is fixedly mounted on the upper end of the housing (1). The air supply direction of the exhaust fan (211) is from bottom to top. The exhaust pipe (212) is a four-way pipe. The lower end of the exhaust fan (211) is connected to one end of the exhaust pipe (212), and the other three ends of the exhaust pipe (212) are connected to the three filter cartridges (213) respectively. The upper and lower ends of the exhaust pipe (212) are respectively connected to the inner side of the upper part of the housing (1) and fixedly connected. The three filter cartridges (213) are fixedly mounted in the through groove in the middle part of the housing (1).

4. The spraying powder recovery device according to claim 3, characterized in that: The collecting components (22) are provided with three, and the three collecting components (22) are respectively mounted on the inner upper ends of the three filter cylinders (213). The collecting components (22) include a filter screen (221), a scraper frame (222) and a scraper (223). The filter screen (221) is fixedly mounted on the upper middle partition of the housing (1). The filter screen (221) is located above the filter cylinder (213). The scraper frame (222) is located at the inner upper end of the filter cylinder (213) and is fixedly connected to the housing (1). The scraper (223) consists of a rotating shaft and a plurality of blades. The plurality of blades are fixedly mounted on the outer side of the rotating shaft. The blades of the scraper (223) are arranged obliquely and have a wing-shaped cross-section. The rotating shaft of the scraper (223) is rotatably mounted on the upper end of the scraper frame (222). The upper end of the blade of the scraper (223) is fitted and slidably connected to the filter screen (221).

5. The spraying powder recovery device according to claim 4, characterized in that: The transfer device (3) comprises a turnover assembly (31) and a conveying assembly (32), and the turnover assembly (31) and the conveying assembly (32) are connected to the housing (1).

6. The spraying powder recovery device according to claim 5, characterized in that: The flip assembly (31) comprises three flaps (311), a connecting rod (312) and a motor (313). The three flaps (311) are correspondingly located below the three filter cartridges (213). The three flaps (311) are rotatably connected to the housing (1). A plurality of connecting rods (312) are fixedly installed between the three flaps (311). The connecting rods (312) at both ends are rotatably connected to the inner side of the lower part of the housing (1). The motor (313) is fixedly installed on the outside of the housing (1), and the output end of the motor (313) is fixedly connected to the connecting rod (312) at one end.

7. The spraying powder recovery device according to claim 6, characterized in that: The conveying assembly (32) comprises a collecting bin (321), a cover plate (322) and a pneumatic powder pump (323). The collecting bin (321) is located on the inner side of the lower portion of the housing (1). A through hole for use with the pneumatic powder pump (323) is provided at the rear end of the collecting bin (321). A through hole for use with the cover plate (322) is provided at the front end of the collecting bin (321). The cover plate (322) is fixedly mounted on the front end of the collecting bin (321) and is fixedly connected to the housing (1) by bolts. The pneumatic powder pump (323) is fixedly mounted on the rear end of the collecting bin (321) and is fixedly connected to the housing (1). The feed port of the pneumatic powder pump (323) is communicated with the through hole at the rear end of the collecting bin (321).

8. The spraying powder recovery device according to claim 7, characterized in that: The left and right ends of the collecting bin (321) are gradually lowered from the outside to the inside, and the rear end through hole of the collecting bin (321) is located at the lowest point inside the collecting bin (321).

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