Drying device for electrostatic spraying machine

Abstract

The utility model relates to the technical field of electrostatic spraying, in particular to a drying device for an electrostatic spraying machine, which comprises a box body, a drying component is arranged in the box body and comprises a fixed cylinder fixedly mounted in the box body, a plurality of sieve pores are formed in the upper half part of the fixed cylinder, and a plurality of sieve pores are formed in the lower half part of the fixed cylinder. A heating assembly is arranged on the lower half portion of the fixing cylinder, a rotating shaft is rotationally connected to the position, located in the center of the fixing cylinder, of the box body, and a plurality of scraping mechanisms and a plurality of cleaning mechanisms are fixedly arranged on the outer surface of the rotating shaft. The powder drying device has the advantages that by arranging the drying assembly, on one hand, powder in the fixing barrel can be turned over through a scraper blade, the powder can be fully heated, the overall drying effect of the powder is improved, part of the powder can be driven to reach the upper half portion of the fixing barrel, and then part of the powder can leak out through screen holes; and on the other hand, powder on the inner wall of the fixed cylinder can be cleaned through the brush, meanwhile, the screen holes can be dredged, and the screen holes are effectively prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spraying, in particular to a drying device for an electrostatic spraying machine. Background Art

[0002] The working principle of electrostatic powder spraying is almost the same as that of general liquid coating electrostatic spraying, except that powder spraying is dispersed rather than atomized. It is a coating sprayed by an electrostatic powder spray gun, which makes the powder particles negatively charged while dispersing. The charged powder particles are applied to the grounded object under the action of airflow (or other forces such as centrifugal force) and electrostatic attraction, and then heated, melted and solidified into a film. Powder coating is a coating with pure solid components, which can be fully automatically sprayed. Large amounts or over-sprayed powder can be easily collected by the recycling system to achieve the purpose of recycling and reuse. Therefore, the utilization rate of powder coating can reach almost 100%, which enables the coating industry to reduce the cost of waste treatment and minimize the degree of environmental pollution.

[0003] An automatic powder replenishing mechanism of an electrostatic spraying device is disclosed in Chinese patent CN215313454U. The automatic powder replenishing mechanism of the electrostatic spraying device can dry the powder entering the feeding chute by setting a drying rod, thereby avoiding the electrostatic spraying device from using powder containing moisture. By setting a push rod, the rotation of the bidirectional motor drives the No. 2 rotating shaft to rotate. The push rod is fixed on the No. 2 rotating shaft, so that the rotation of the No. 2 rotating shaft drives the push rod to rotate on the screening plate, so that the push rod can make large pieces of spray powder smaller through the leakage holes on the screening plate, thereby helping to improve the spraying effect of the spraying device.

[0004] However, compared with the existing technology in the related field, since the drying rod is fixed, the powder in the inner layer is difficult to be dried by the drying rod, so that part of the powder is still in a damp state, and the shrinkage holes caused by the damp powder will still affect the quality of spraying. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a drying device for an electrostatic sprayer.

[0007] The purpose of the utility model is achieved through the following technical solutions: A drying device for an electrostatic sprayer, comprising a box, a drying assembly is arranged inside the box, the drying assembly comprises a fixed cylinder fixedly installed inside the box, a plurality of sieve holes are opened in the upper half of the fixed cylinder, a heating assembly is arranged in the lower half of the fixed cylinder, the box is rotatably connected to a rotating shaft at the center of the fixed cylinder, and a plurality of scraping mechanisms and a plurality of cleaning mechanisms are fixedly arranged on the outer surface of the rotating shaft;

[0008] The scraping mechanism comprises a first bracket fixedly mounted on the rotating shaft, and a scraper is slidably connected to one end of the first bracket away from the rotating shaft;

[0009] The cleaning mechanism comprises a second bracket fixedly mounted on the rotating shaft, and a brush is slidably connected to one end of the second bracket away from the rotating shaft.

[0010] Preferably, the box body is symmetrically fixed with two material guide plates on the lower side of the fixed cylinder.

[0011] By adopting the above technical solution, the guide plate cooperates with the guide table to guide the dried powder to one side of the feed inlet of the electrostatic sprayer body, and then the electrostatic sprayer body can spray the powder.

[0012] Preferably, a material guide platform is fixedly provided on the bottom surface of the box body, an electrostatic sprayer body is provided on the side of the box body, and a material feed port of the electrostatic sprayer body is connected to the interior of the box body.

[0013] By adopting the above technical solution, the guide plate cooperates with the guide table to guide the dried powder to one side of the feed inlet of the electrostatic sprayer body, and then the electrostatic sprayer body can spray the powder.

[0014] Preferably, a feed pipe is fixedly installed on the top of the box body, an upper cover is installed on the top of the feed pipe, and a feed hole is opened at the bottom end of the fixed cylinder located at the feed pipe.

[0015] By adopting the above technical solution, the upper cover can be opened, the powder can be added into the interior of the fixed cylinder from the feeding pipe, and then the motor and the heating component can be started.

[0016] Preferably, a motor is fixedly installed at a position on the rear side of the box body corresponding to the rotating shaft, and an output end of the motor passes through the box body and is connected to an end of the rotating shaft.

[0017] By adopting the above technical solution, the rotation speed of the shaft can be accurately controlled by using the motor.

[0018] Preferably, an inspection port is provided on the front side of the box body, and a sealing cover is threadedly connected to the inspection port.

[0019] By adopting the above technical solution, the sealing cover can be separated from the inspection port by rotating the sealing cover, and the brush or scraper can be replaced at this time.

[0020] Preferably, the scraper has a triangular cross-section, the scraper is adapted to the fixed tube, a first T-shaped slider is fixedly provided on one side of the scraper close to the first bracket, and a first T-shaped groove is provided at a position of the first bracket corresponding to the first T-shaped slider.

[0021] By adopting the above technical solution, it is introduced how to connect the scraper with the first bracket in a sliding manner, so that it is convenient to replace the scraper.

[0022] Preferably, a second T-shaped sliding block is fixedly provided on one side of the brush close to the second bracket, and a second T-shaped sliding groove is provided at a position of the second bracket corresponding to the second T-shaped sliding block.

[0023] By adopting the above technical solution, it is introduced how to connect the brush to the second bracket in a sliding manner, so that the brush can be replaced easily.

[0024] Compared with the prior art, the utility model has the following advantages:

[0025] The drying device for the electrostatic sprayer achieves the following effects by arranging a drying component: on the one hand, a scraper can be used to turn over the powder inside the fixed cylinder so that the powder can be fully heated to improve the overall drying effect of the powder, and part of the powder can be driven to the upper half of the fixed cylinder, and then part of the powder will leak out through the sieve holes; on the other hand, a brush can be used to clean the powder on the inner wall of the fixed cylinder and dredge the sieve holes at the same time, effectively avoiding blockage of the sieve holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0028] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0029] Figure 3 This is a schematic diagram of the disassembly structure of the sealing cover and the inspection port of the utility model;

[0030] Figure 4This is a schematic diagram of the structure of the sealing cover of the utility model;

[0031] Figure 5 It is a schematic diagram of the structure inside the box of the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the drying component of the utility model;

[0033] Figure 7 It is a structural schematic diagram of the scraping mechanism and the cleaning mechanism of the utility model.

[0034] In the figure: 1. box body; 101. guide plate; 102. guide platform; 103. inspection port; 2. drying component; 201. fixed cylinder; 2011. sieve hole; 2012. heating component; 2013. feed hole; 202. rotating shaft; 203. scraping mechanism; 2031. first bracket; 2032. scraper; 2033. first T-shaped slider; 2034. first T-shaped slide; 204. cleaning mechanism; 2041. second bracket; 2042. brush; 2043. second T-shaped slider; 2044. second T-shaped slide; 3. electrostatic sprayer body; 4. feed pipe; 401. upper cover; 5. motor; 6. sealing cover. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0038] like Figure 1-7 As shown, a drying device for an electrostatic sprayer comprises a housing 1, a drying assembly 2 is arranged inside the housing 1, the drying assembly 2 comprises a fixed cylinder 201 fixedly mounted inside the housing 1, a plurality of sieve holes 2011 are provided on the upper half of the fixed cylinder 201, a heating assembly 2012 is provided on the lower half of the fixed cylinder 201, the housing 1 is rotatably connected with a rotating shaft 202 at the center of the fixed cylinder 201, a motor 5 is fixedly mounted at a position corresponding to the rotating shaft 202 at the rear side of the housing 1, an output end of the motor 5 passes through the housing 1 and is connected with the end of the rotating shaft 202, rotating holes are arranged at both ends of the rotating shaft 202 of the housing 1, bearings are inlaid inside the rotating holes, the friction force of the rotating shaft 202 when rotating can be reduced by using the bearings, the stability of the rotating shaft 202 when rotating can be improved, and the rotation speed of the rotating shaft 202 can be accurately controlled by cooperating with the motor 5, a plurality of scraping mechanisms 203 and a plurality of cleaning mechanisms 204 are fixedly arranged on the outer surface of the rotating shaft 202;

[0039] The scraping mechanism 203 includes a first bracket 2031 fixedly installed with the rotating shaft 202, and a scraper 2032 is slidably connected to the end of the first bracket 2031 away from the rotating shaft 202. The cross section of the scraper 2032 is triangular, and the scraper 2032 is adapted to the fixed cylinder 201. A first T-shaped slider 2033 is fixedly provided on the side of the scraper 2032 close to the first bracket 2031. The first bracket 2031 is provided with a first T-shaped slide groove 2034 at a position corresponding to the first T-shaped slider 2033. The scraper 2032 fits with the inner wall of the fixed cylinder 201, so that the first bracket 2031 can be controlled to rotate by the rotating shaft 202, and then the first bracket 2031 will drive the scraper 2032 to rotate. At this time, the scraper 2032 can flip the powder inside the fixed cylinder 201, and can drive part of the powder to the upper half of the fixed cylinder 201.

[0040] The cleaning mechanism 204 includes a second bracket 2041 fixedly mounted on the rotating shaft 202, and a brush 2042 is slidably connected to the end of the second bracket 2041 away from the rotating shaft 202, and a second T-shaped slider 2043 is fixedly provided on the side of the brush 2042 close to the second bracket 2041, and a second T-shaped slide groove 2044 is opened on the second bracket 2041 corresponding to the position of the second T-shaped slider 2043. The second bracket 2041 can be controlled to rotate by the rotating shaft 202, and then the second bracket 2041 will drive the brush 2042 to rotate, so that the brush 2042 can be used to clean the powder on the inner wall of the fixed cylinder 201 and dredge the sieve hole 2011 at the same time, effectively avoiding the blockage of the sieve hole 2011.

[0041] The box body 1 is symmetrically fixed with two material guide plates 101 on the lower side of the fixed cylinder 201, a material guide platform 102 is fixedly provided on the bottom surface of the box body 1, an electrostatic sprayer body 3 is provided on the side of the box body 1, the feed port of the electrostatic sprayer body 3 is connected to the interior of the box body 1, a feed pipe 4 is fixedly installed on the top of the box body 1, and an upper cover 401 is installed on the top of the feed pipe 4, a feed hole 2013 is provided at the bottom end of the fixed cylinder 201 located at the feed pipe 4, an inspection port 103 is provided on the front side of the box body 1, and the inspection port 103 is threadedly connected with a sealing cover 6, which can be separated from the inspection port 103 by rotating the sealing cover 6, and the brush 2042 or the scraper 2032 can be replaced at this time. The heating component 2012, the electrostatic sprayer body 3 and the motor 5 in this embodiment are well-known technologies in the technical field, so their specific structure and working principle are not described in detail.

[0042] The working process is as follows:

[0043] S1. When in use, open the upper cover 401, add powder from the feed pipe 4 into the interior of the fixed cylinder 201, and then start the motor 5 and the heating component 2012;

[0044] S2. The motor 5 can be used to accurately control the rotation speed of the rotating shaft 202, and the heating component 2012 can be used to heat the fixed cylinder 201;

[0045] S3, on the one hand, the first bracket 2031 is controlled to rotate by the rotating shaft 202, and then the first bracket 2031 drives the scraper 2032 to rotate, at this time, the scraper 2032 can turn over the powder inside the fixed cylinder 201, so that the powder can be fully heated to improve the overall drying effect of the powder, and can drive part of the powder to the upper half of the fixed cylinder 201, and then part of the powder will leak out through the sieve hole 2011, on the other hand, the second bracket 2041 is controlled to rotate by the rotating shaft 202, and then the second bracket 2041 drives the brush 2042 to rotate, so that the brush 2042 can not only clean the powder on the inner wall of the fixed cylinder 201, but also dredge the sieve hole 2011, effectively avoiding the sieve hole 2011 from being blocked;

[0046] S4. When the powder leaks out through the sieve hole 2011, the guide plate 101 and the guide platform 102 can be used to guide the dried powder to one side of the feed port of the electrostatic sprayer body 3, and then the electrostatic sprayer body 3 can spray the powder.

[0047] 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 drying device for an electrostatic sprayer, Features: The invention comprises a box body (1), wherein a drying assembly (2) is arranged inside the box body (1), wherein the drying assembly (2) comprises a fixed cylinder (201) fixedly mounted inside the box body (1), wherein the upper half of the fixed cylinder (201) is provided with a plurality of sieve holes (2011), and the lower half of the fixed cylinder (201) is provided with a heating assembly (2012); the box body (1) is rotatably connected to a rotating shaft (202) at the center of the fixed cylinder (201), and the outer surface of the rotating shaft (202) is fixedly provided with a plurality of scraping mechanisms (203) and a plurality of cleaning mechanisms (204); The scraping mechanism (203) comprises a first bracket (2031) fixedly mounted on the rotating shaft (202), and a scraper (2032) is slidably connected to one end of the first bracket (2031) away from the rotating shaft (202); The cleaning mechanism (204) comprises a second bracket (2041) fixedly mounted on the rotating shaft (202); an end of the second bracket (2041) away from the rotating shaft (202) is slidably connected to a brush (2042).

2. A drying device for an electrostatic sprayer according to claim 1, Features: The box body (1) is located at the lower side of the fixed cylinder (201) and is symmetrically fixed with two material guide plates (101).

3. A drying device for an electrostatic sprayer according to claim 1, Features: A material guide platform (102) is fixedly provided on the bottom surface of the box body (1), an electrostatic sprayer body (3) is provided on the side surface of the box body (1), and a material feed port of the electrostatic sprayer body (3) is connected to the interior of the box body (1).

4. A drying device for an electrostatic sprayer according to claim 1, Features: A feed pipe (4) is fixedly mounted on the top of the box body (1), an upper cover (401) is mounted on the top of the feed pipe (4), and a feed hole (2013) is provided at the bottom end of the fixed cylinder (201) located at the feed pipe (4).

5. A drying device for an electrostatic sprayer according to claim 1, Features: A motor (5) is fixedly mounted on the rear side of the box body (1) at a position corresponding to the rotating shaft (202), and an output end of the motor (5) passes through the box body (1) and is connected to the end of the rotating shaft (202).

6. A drying device for an electrostatic sprayer according to claim 1, Features: The front side of the box body (1) is provided with an inspection opening (103), and the inspection opening (103) is threadedly connected with a sealing cover (6).

7. A drying device for an electrostatic sprayer according to claim 1, Features: The scraper (2032) has a triangular cross-section. The scraper (2032) is adapted to the fixed tube (201). A first T-shaped sliding block (2033) is fixedly provided on one side of the scraper (2032) close to the first bracket (2031). A first T-shaped sliding groove (2034) is provided on the first bracket (2031) at a position corresponding to the first T-shaped sliding block (2033).

8. A drying device for an electrostatic sprayer according to claim 1, Features: A second T-shaped slider (2043) is fixedly provided on one side of the brush (2042) close to the second bracket (2041), and a second T-shaped slide groove (2044) is provided on the second bracket (2041) at a position corresponding to the second T-shaped slider (2043).

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