Vacuum feeding mechanism for powder coating

Abstract

The utility model belongs to the technical field of feeding equipment, and particularly relates to a vacuum feeding mechanism for powder coating, which comprises a base, a screening feeding mechanism is arranged above the base, and a grinding mechanism is arranged on one side of the screening feeding mechanism. According to the powder coating screening and feeding device, powder coating is effectively filtered and screened through the arranged screening and feeding mechanism, a feeding box is driven to ascend and descend through a lifting assembly arranged in a vertical plate, air in the feeding box is continuously pumped out through cooperation of a vacuum pump and a filter screen bin, and a certain degree of negative pressure is formed in the feeding box; powder coating meeting the standard is screened out in the screening box through a vibration screening assembly arranged below the screening box, the powder coating meeting the standard is sucked into the feeding box body through a vacuum pump and a lifting connecting hose, the powder coating in the feeding box body is pushed into a feeding pipe through a pushing assembly, and the filtering and screening effect is guaranteed; and the vacuum feeding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding equipment, and in particular relates to a vacuum feeding mechanism for powder coatings. Background Art

[0002] In the process of industrial production, it is often necessary to transport raw materials from storage bins to processing equipment through feeding. In this process, feeding equipment is needed. Vacuum feeding mechanism is one of them. It uses vacuum pump to generate vacuum for feeding. It is mainly used for feeding powder or granular raw materials. Powder coating is a solvent-free, 100% solid powder coating. It has the characteristics of solvent-free, pollution-free, recyclable, environmentally friendly, energy and resource saving, reduced labor intensity and high mechanical strength of coating film.

[0003] The existing related technologies process the raw materials separately according to their particle size and cannot effectively filter and screen the powder coatings. Therefore, it is urgent to design a vacuum feeding mechanism for powder coatings to deal with these problems. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, the utility model discloses a vacuum feeding mechanism for powder coatings.

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

[0006] A vacuum feeding mechanism for powder coating comprises a base, a screening feeding mechanism is arranged above the base, and a grinding mechanism is arranged on one side of the screening feeding mechanism.

[0007] The screening and feeding mechanism includes a vertical plate arranged on one side above the base, a lifting assembly is vertically installed in the vertical plate, a feeding box is installed below the lifting assembly, a vacuum pump is installed on the lifting assembly, a filter screen bin is installed on the vacuum pump, a pushing assembly is installed in the feeding box, a screening box is arranged below the feeding box, a grate plate is installed in the screening box, a vibration screening assembly is arranged below the screening box, a lifting connecting hose is installed on one side of the screening box, and a feeding pipe is installed below the feeding box.

[0008] Preferably, the grinding mechanism includes a supporting platform arranged on one side of the screening and feeding mechanism, a grinding cylinder is installed above the supporting platform, a supporting shaft is vertically installed below the grinding cylinder, a rotating assembly is provided on the outer surface of one end of the supporting shaft, a grinding and filtering assembly is provided at the other end of the supporting shaft, a stirring assembly is provided in the grinding cylinder, a feeding pipe is provided on the grinding cylinder, a powder extraction pump is provided on one side of the grinding cylinder, and a connecting pipe is connected to the power end of the powder extraction pump.

[0009] Preferably, the pushing assembly comprises a telescopic pushing plate arranged in the loading box body, and an electric telescopic rod is arranged on one side of the telescopic pushing plate.

[0010] Preferably, the vibrating screening assembly comprises a damping spring device arranged below the screening box, and a vibrating motor is installed below the screening box.

[0011] Preferably, the grinding filter assembly comprises a grinding filter screen arranged at the other end of the supporting shaft, and the outer surface of the grinding filter screen is provided with grinding holes.

[0012] Preferably, the stirring assembly comprises a first rotating shaft arranged in the grinding cylinder, a driving motor is installed at one end of the first rotating shaft, stirring rods are installed longitudinally and equidistantly on the outer surface of the first rotating shaft, and scrapers are installed laterally and equidistantly on the outer surface of the first rotating shaft.

[0013] The beneficial effects are:

[0014] The utility model discloses a vacuum feeding mechanism for powder coatings. The screening feeding mechanism is used to effectively filter and screen the powder coatings. The lifting assembly arranged in the vertical plate drives the feeding box to lift and move. The vacuum pump cooperates with the filter screen to continuously extract the air in the feeding box, so that a certain degree of negative pressure is formed in the feeding box. The vibrating screening assembly arranged below the screening box is used to screen out powder coatings that meet the standards in the screening box. The vacuum pump sucks the powder coatings that meet the standards into the interior of the feeding box through the lifting connection hose. The pushing assembly is used to push the powder coating in the feeding box into the feeding pipe, thereby ensuring the filtering and screening effect and improving the vacuum feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the shaft side structure of the utility model;

[0016] Figure 2 It is a front view structural schematic diagram of the utility model;

[0017] Figure 3 It is a first structural schematic diagram of the utility model;

[0018] Figure 4 It is a second structural schematic diagram of the utility model;

[0019] Figure 5 yes Figure 4 Schematic diagram of the structure at A in the middle.

[0020] In the figure: 1. base;

[0021] 2. Screening and feeding mechanism; 201. Vertical plate; 202. Lifting assembly; 203. Vacuum pump; 204. Filter screen bin; 205. Observation tube; 206. Telescopic push plate; 2061. Electric telescopic rod; 207. Vibration motor; 2071. Damping spring; 208. Screening box; 2081. Grate plate; 209. Lifting connecting hose; 210. Feeding pipe; 211. Feeding box;

[0022] 3. Grinding mechanism; 301. Carrying platform; 302. Grinding cylinder; 303. Driving motor; 3031. First rotating shaft; 3032. Scraper; 3033. Stirring rod; 304. Feed pipe; 305. Rotating assembly; 306. Support shaft; 307. Grinding filter; 3071. Grinding hole; 308. Powder pump; 309. Connecting pipe. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain 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 indirectly connected 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 according to specific circumstances.

[0026] Reference Figure 1-5 The utility model provides an embodiment: a vacuum feeding mechanism for powder coating, comprising a base 1, a screening feeding mechanism 2 is arranged above the base 1, and a grinding mechanism 3 is arranged on one side of the screening feeding mechanism 2.

[0027] In this embodiment: the screening and feeding mechanism 2 includes a vertical plate 201 arranged on one side above the base 1, a lifting assembly 202 is vertically installed in the vertical plate 201, a feeding box 211 is installed below the lifting assembly 202, a vacuum pump 203 is installed on the lifting assembly 202, a filter screen 204 is installed on the vacuum pump 203, and the vacuum pump 203 cooperates with the filter screen 204 to continuously extract the air in the feeding box 211, so that a certain degree of negative pressure is formed in the feeding box 211. A pushing assembly is installed in the feeding box 211, a screening box 208 is arranged below the feeding box 211, a grate plate 2081 is installed in the screening box 208, a vibration screening assembly is arranged below the screening box 208, a lifting connection hose 209 is installed on one side of the screening box 208, and a feeding pipe 210 is installed below the feeding box 211. An electromagnetic one-way switch is arranged on the outer surface of the feeding pipe 210. The outlet end of the feeding tube 210 is externally connected to a square tube. The pushing assembly includes a telescopic pushing plate 206 arranged in the feeding box 211, and an electric telescopic rod 2061 is arranged on one side of the telescopic pushing plate 206. The vibration screening assembly includes a damping spring device 2071 arranged below the screening box 208, and a vibration motor 207 is installed below the screening box 208. An observation tube 205 is arranged on the lifting assembly 202. A cover body is arranged on the observation tube 205 for observing the inside of the feeding box 211. The lifting assembly 202 includes a ball screw vertically arranged in the vertical plate 201, a stepping motor is installed at one end of the ball screw, and a lifting platform is arranged on the outer surface of the ball screw.

[0028] In this embodiment: the grinding mechanism 3 includes a bearing platform 301 arranged on one side of the screening and feeding mechanism 2, a grinding cylinder 302 is installed on the bearing platform 301, a support shaft 306 is vertically installed below the grinding cylinder 302, a rotating assembly 305 is arranged on the outer surface of one end of the supporting shaft 306, and the rotating assembly 305 includes a worm wheel arranged on the outer surface of the supporting shaft 306, a worm is arranged on one side of the worm wheel, and a power motor is installed on one end of the worm. The other end of the supporting shaft 306 is driven to be provided with a grinding and filtering assembly, and the rotating assembly 305 is used to support the shaft 306 to rotate. A stirring assembly is arranged in the grinding cylinder 302, a feeding pipe 304 is arranged on the grinding cylinder 302, a powder pump 308 is arranged on one side of the grinding cylinder 302, and a connecting pipe 309 is connected to the power end of the powder pump 308. The connecting pipe 309 is made of soft material. The grinding and filtering assembly includes a grinding filter 307 arranged on the other end of the supporting shaft 306, and a grinding hole 3071 is arranged on the outer surface of the grinding filter 307. The grinding filter 307 rotates with the grinding hole 3071 to grind the powder coating. The stirring assembly includes a first rotating shaft 3031 disposed in the grinding cylinder 302, a driving motor 303 is installed at one end of the first rotating shaft 3031, stirring rods 3033 are installed longitudinally and equidistantly on the outer surface of the first rotating shaft 3031, and scrapers 3032 are installed transversely and equidistantly on the outer surface of the first rotating shaft 3031. The stirring assembly is used to stir the powder coating entering the grinding cylinder 302.

[0029] Working principle: When in use, first start the drive motor 303 installed on the grinding cylinder 302, drive the first rotating shaft 3031 to rotate, and drive the stirring rod 3033 and the scraper 3032 to rotate, and put the powder coating from the feeding pipe 304 into the grinding cylinder 302 to stir the powder coating. At the same time, start the rotating component 305 to drive the support shaft 306 to rotate, and drive the grinding filter 307 to rotate. When the stirred dust coating falls on the rotating grinding filter 307, the dust coating is ground. After a period of grinding, the powder coating flows out from the grinding hole 3071, and the powder pump 308 is started to remove the ground dust coating. The material passes through the connecting pipe 309 and enters the grate plate 2081 installed in the screening box 208. The vibration screening component is started to vibrate and screen the powder coating on the grate plate 2081. The vacuum pump 203 and the filter screen 204 are turned on to extract the air in the feeding box 211, so that a certain degree of negative pressure is formed in the feeding box 211. The powder coating that meets the standards after screening is drawn into the feeding box 211 through the lifting connecting hose 209. The feeding box 211 is lifted and moved a certain distance by the lifting component 202. The pushing component is turned on to push the powder coating into the mouth of the feeding pipe 210. The powder coating is discharged from the feeding material by releasing the electromagnetic one-way switch.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum feeding mechanism for powder coating, characterized in that: It comprises a base (1), a screening and feeding mechanism (2) is arranged above the base (1), and a grinding mechanism (3) is arranged on one side of the screening and feeding mechanism (2); The screening and feeding mechanism (2) comprises a vertical plate (201) arranged on one side above the base (1); a lifting assembly (202) is vertically installed in the vertical plate (201); a feeding box (211) is installed below the lifting assembly (202); a vacuum pump (203) is installed on the lifting assembly (202); a filter screen bin (204) is installed on the vacuum pump (203); a pushing assembly is installed in the feeding box (211); a screening box (208) is arranged below the feeding box (211); a grate plate (2081) is installed in the screening box (208); a vibration screening assembly is arranged below the screening box (208); a lifting connecting hose (209) is installed on one side of the screening box (208); and a feeding pipe (210) is installed below the feeding box (211).

2. A vacuum feeding mechanism for powder coating according to claim 1, characterized in that: The grinding mechanism (3) comprises a supporting platform (301) arranged on one side of the screening and feeding mechanism (2); a grinding cylinder (302) is installed above the supporting platform (301); a supporting shaft (306) is vertically installed below the grinding cylinder (302); a rotating component (305) is arranged on the outer surface of one end of the supporting shaft (306); a grinding and filtering component is arranged at the other end of the supporting shaft (306); a stirring component is arranged inside the grinding cylinder (302); a feeding pipe (304) is arranged on the grinding cylinder (302); a powder pump (308) is arranged on one side of the grinding cylinder (302); and a connecting pipe (309) is connected to the power end of the powder pump (308).

3. A vacuum feeding mechanism for powder coating according to claim 1, characterized in that: The pushing assembly comprises a telescopic pushing plate (206) arranged in the loading box (211), and an electric telescopic rod (2061) is arranged on one side of the telescopic pushing plate (206).

4. A vacuum feeding mechanism for powder coating according to claim 1, characterized in that: The vibration screening assembly comprises a damping spring device (2071) arranged below the screening box (208), and a vibration motor (207) is installed below the screening box (208).

5. A vacuum feeding mechanism for powder coating according to claim 2, characterized in that: The grinding filter assembly comprises a grinding filter screen (307) arranged at the other end of the support shaft (306), and the outer surface of the grinding filter screen (307) is provided with grinding holes (3071).

6. A vacuum feeding mechanism for powder coating according to claim 2, characterized in that: The stirring assembly comprises a first rotating shaft (3031) arranged in the grinding cylinder (302), a driving motor (303) being installed at one end of the first rotating shaft (3031), stirring rods (3033) being installed at equal intervals longitudinally on the outer surface of the first rotating shaft (3031), and scrapers (3032) being installed at equal intervals transversely on the outer surface of the first rotating shaft (3031).

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