Raw material drying mechanism for powder coating processing

Abstract

The raw material drying mechanism for powder coating processing comprises a shell, a drying box, a rotating motor and a filtering plate, the rotating motor is installed on one side of the shell, the output end of the rotating motor is connected with a driving wheel in a fastened mode, the driving wheel is connected with a driven wheel through a conveying belt, and the driven wheel is connected with the drying box. One side of the driven wheel is connected with a spiral shaft through a drying box, a spray head is arranged at the top of the drying box, a flow guide pipe is arranged on the spray head, one end of the flow guide pipe is connected with a connecting pipe, the bottom end of the connecting pipe is connected with a heating bin, and a heating wire and a fan are arranged in the heating bin. And a draught fan is started to cooperate with a heating wire to convey hot air into a flow guide pipe through a connecting pipe, hot air is conveyed into the drying box through a spray head, the hot air cooperates with a heating base to increase the temperature in the drying box, therefore, the drying efficiency is improved, and the dried air flows back into a heating bin through a conveying pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder coating processing technical field, concretely is a raw material drying mechanism for powder coating processing. BACKGROUND

[0002] Powder coating is solid powder synthetic resin coating composed of solid resin, pigment, filler and additive, etc. Unlike ordinary solvent-based coating and water-based coating, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film forming and low energy consumption. Powder coating has thermoplastic and thermosetting two categories. The appearance (gloss and leveling) of thermoplastic powder coating film is poor, and the adhesion between the metal is also poor, so it is rarely used in automobile coating field. Automobile coating generally uses thermosetting powder coating. Thermosetting powder coating is a kind of coating film with flat and hard surface, which is made of thermosetting synthetic resin as film forming material, and the resin is first melted and then cured into a flat and hard coating film after chemical crosslinking in the drying process.

[0003] After searching, a raw material drying mechanism for powder coating processing is found in Chinese utility model patent CN210242247U, which comprises a drying cylinder, the drying cylinder is annular as a whole, two main shafts are fixed on the left and right sides of the drying cylinder respectively, the two main shafts are coaxially arranged, the main shaft is a hollow shaft, a cavity penetrating the main shaft is arranged in the center, an air inlet is arranged on the left side of the drying cylinder and communicates with the inner cavity of the left main shaft, an air outlet is arranged on the right side of the drying cylinder and communicates with the inner cavity of the right main shaft, the left end of the left main shaft is connected with a hot air supply pipe through a first rotary joint, and the right end of the right main shaft is connected with an exhaust pipe through a second rotary joint; a driven pulley is fixedly installed on the left main shaft of the drying cylinder.

[0004] The existing device has the following problems when in use: the heat is continuously lost when the hot air contacts the raw material, so the drying time needs to be lengthened, the temperature inside the drying box is heated slowly, the heating efficiency is low, and the heat carried by the heat-exchanged gas is not recycled, resulting in heat loss. SUMMARY

[0005] The utility model aims at providing a raw material drying mechanism for powder coating processing to solve the problems in the above background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a raw material drying mechanism for powder coating processing, comprising a shell, a drying chamber, a rotating motor, and a filter plate. The rotating motor is installed on one side of the shell, and a drive wheel is fastened to the output end of the rotating motor. The drive wheel is connected to a driven wheel via a conveyor belt. A spiral shaft is connected to one side of the driven wheel via the drying chamber. A nozzle is provided on the top of the drying chamber, and a guide pipe is provided on the nozzle. One end of the guide pipe is connected to a connecting pipe, and the bottom end of the connecting pipe is connected to a heating chamber. A heating wire and a fan are provided inside the heating chamber. Support frames are connected to both ends of the drying chamber.

[0007] By adopting the above technical solution, the starting motor drives the driving wheel to rotate, which in turn drives the driven wheel via a conveyor belt. The driven wheel then drives the spiral shaft to rotate, which in turn agitates the powder inside the drying chamber. The fan, in conjunction with the heating wire, delivers the powder through a connecting pipe into the guide pipe. Hot air is then delivered into the drying chamber through nozzles. This hot air, combined with the heating base, increases the temperature inside the drying chamber, thereby improving drying efficiency. The dried gas is then returned to the heating chamber through a conveyor pipe, where it is recirculated by the fan and heating wire for reuse, thus reducing the time wasted in subsequent heating processes.

[0008] Preferably, the top of the drying chamber is provided with a feed inlet, the bottom of the drying chamber is provided with a discharge pipe, and the discharge pipe is provided with a valve.

[0009] By adopting the above technical solution, raw materials are fed into the drying chamber through the inlet, and the raw materials are discharged through the discharge pipe after the valve is opened.

[0010] Preferably, the heating chamber has a retaining plate on both sides, and the retaining plate has a filter plate inside.

[0011] By adopting the above technical solution, the design of the card plate facilitates the disassembly and installation of the filter plate.

[0012] Preferably, a filter screen is provided on one side of the drying box, a conveying pipe is provided on one side of the filter screen, and a heating chamber is connected to one end of the conveying pipe.

[0013] By adopting the above technical solution, the filter screen prevents raw materials from being discharged with the gas, thus reducing the loss of raw materials.

[0014] Preferably, the bottom of the drying oven is provided with a heating chamber, which is arc-shaped and fits against the bottom of the drying oven.

[0015] By adopting the above technical solution, it is convenient to heat the inside of the drying oven and increase the temperature inside the drying oven.

[0016] Preferably, the fan is located between the filter plate and the heating wire, and a handle is provided on one side of the filter plate.

[0017] By adopting the above technical solution, pulling the handle causes the filter plate 17 to detach from the heating chamber 14, thereby cleaning the filter plate 17 and preventing a reduction in the filtration effect of the filter plate 17.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The fan is started and the heating wire is connected to the guide pipe to deliver hot air into the drying chamber. The hot air is delivered into the drying chamber through the nozzles. The hot air, together with the heating seat, increases the temperature inside the drying chamber, thereby improving the drying efficiency.

[0020] The dried gas flows back into the heating chamber through a conveying pipe, where it is recirculated by a fan and heating wires for heating, thus reducing the time wasted in subsequent heating and avoiding energy waste. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the filter screen structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the filter plate structure of this utility model.

[0025] In the diagram: 1. Rotating motor; 2. Driving wheel; 3. Housing; 4. Driven wheel; 5. Spiral shaft; 6. Drying chamber; 7. Feed inlet; 8. Guide pipe; 9. Nozzle; 10. Filter screen; 11. Heating seat; 12. Support frame; 13. Connecting pipe; 14. Heating chamber; 15. Heating wire; 16. Fan; 17. Filter plate; 18. Conveying pipe; 19. Valve; 20. Discharge pipe; 21. Pallet; 22. Conveyor belt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a technical solution: a raw material drying mechanism for powder coating processing. Please refer to [link / reference]. Figure 1, Figure 2 A rotary motor 1 is installed on one side of the housing 3. A drive wheel 2 is securely connected to the output end of the rotary motor 1. The drive wheel 2 is connected to a driven wheel 4 via a conveyor belt 22. A spiral shaft 5 is connected to one side of the driven wheel 4 via a drying chamber 6. Starting the rotary motor 1 drives the drive wheel 2 to rotate. The drive wheel 2 drives the driven wheel 4 via the conveyor belt 22, thereby driving the spiral shaft 5 to rotate. The spiral shaft 5 agitates the powder inside the drying chamber 6, ensuring uniform heating of the raw materials. A nozzle 9 is installed at the top of the drying chamber 6. A guide pipe 8 is installed on the nozzle 9. One end of the guide pipe 8 is connected to a connecting pipe 13. The bottom end of the connecting pipe 13 is connected to a heating chamber 14. The heating chamber 14 is equipped with a heating wire 15 and a fan 16. Both ends of the drying box 6 are connected to support frames 12. The top of the drying box 6 is equipped with a feed inlet 7, through which raw materials are fed into the drying box 6. The bottom of the drying box 6 is equipped with a discharge pipe 20, and a valve 19 is installed on the discharge pipe 20. The bottom of the drying box 6 is equipped with a heating chamber 14, which is arc-shaped and fits against the bottom of the drying box 6. When the fan 16 is started, it works with the heating wire 15 to deliver hot air into the guide pipe 8 through the connecting pipe 13. Hot air is delivered into the drying box 6 through the nozzle 9. The hot air, together with the heating seat 11, increases the temperature inside the drying box 6, thereby improving the drying efficiency.

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Both sides of the heating chamber 14 are provided with clamping plates 21, and filter plates 17 are provided inside the clamping plates 21. A filter screen 10 is provided on one side of the drying box 6, and a conveying pipe 18 is provided on one side of the filter screen 10. One end of the conveying pipe 18 is connected to the heating chamber 14. The dried gas flows back to the interior of the heating chamber 14 through the conveying pipe 18, so that the fan 16 and the heating wire 15 can be recycled for heating, thereby reducing the time wasted in subsequent heating and avoiding heat energy waste. The fan 16 is located between the filter plate 17 and the heating wire 15. A handle is provided on one side of the filter plate 17. Pulling the handle will cause the filter plate 17 to be removed from the heating chamber 14, thereby cleaning the filter plate 17 and preventing the filtration effect of the filter plate 17 from being reduced.

[0029] Working principle: Raw materials are fed into the drying chamber 6 through the feed inlet 7. The rotating motor 1 is started to drive the drive wheel 2 to rotate. The drive wheel 2 drives the driven wheel 4 through the conveyor belt 22, which in turn drives the spiral shaft 5 to rotate. The spiral shaft 5 agitates the powder in the drying chamber 6. The fan 16 is started and, together with the heating wire 15, conveys the powder to the guide pipe 8 through the connecting pipe 13. Hot air is delivered into the drying chamber 6 through the nozzle 9. The hot air, together with the heating seat 11, increases the temperature inside the drying chamber 6, thereby improving the drying efficiency. The dried gas flows back into the heating chamber 14 through the conveying pipe 18, so that the fan 16 and the heating wire 15 can be recycled for heating, thereby reducing the time wasted in subsequent heating and avoiding heat energy waste. The dried raw materials are discharged from the discharge pipe 20 by opening the valve 19.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material drying mechanism for powder coating processing, comprising a shell (3), a drying box (6), a rotating motor (1), a filter plate (17), characterized in that: One side of the shell (3) is provided with a rotating motor (1), the output end of the rotating motor (1) is tightly connected with a driving wheel (2), the driving wheel (2) is connected with a driven wheel (4) through a conveying belt (22), one side of the driven wheel (4) is connected with a spiral shaft (5) through a drying box (6), the top of the drying box (6) is provided with a spray head (9), the spray head (9) is provided with a flow guide pipe (8), one end of the flow guide pipe (8) is connected with a connecting pipe (13), the bottom end of the connecting pipe (13) is connected with a heating bin (14), the inside of the heating bin (14) is provided with a heating wire (15) and a fan (16), both ends of the drying box (6) are connected with a support frame (12).

2. The raw material drying mechanism for powder coating processing according to claim 1, characterized in that: The top of the drying box (6) is provided with an inlet (7), the bottom of the drying box (6) is provided with a discharge pipe (20), the discharge pipe (20) is provided with a valve (19).

3. The raw material drying mechanism for powder coating processing according to claim 1, characterized in that: The inside of the heating bin (14) is provided with a clamping plate (21) on both sides, the inside of the clamping plate (21) is provided with a filter plate (17).

4. The raw material drying mechanism for powder coating processing according to claim 1, characterized in that: One side of the drying box (6) is provided with a filter screen (10), one side of the filter screen (10) is provided with a conveying pipe (18), one end of the conveying pipe (18) is connected with the heating bin (14).

5. The raw material drying mechanism for powder coating processing according to claim 1, characterized in that: The bottom of the drying box (6) is provided with the heating bin (14), the heating bin (14) is arc-shaped and is attached to the bottom of the drying box (6).

6. The raw material drying mechanism for powder coating processing according to claim 1, characterized in that: The fan (16) is located between the filter plate (17) and the heating wire (15), one side of the filter plate (17) is provided with a handle.

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