Dacromet drying device with workpiece not prone to adhesion

Abstract

The Dacromet drying device comprises a treatment box, a first conveying belt, a second conveying belt, a first partition plate, a second partition plate, a third conveying belt, a first exhaust fan, a second exhaust fan, an exhaust pipe, an air heater, an air cooler, a circulating pipe and a circulating fan, the treatment box is in a long strip shape, and a feeding port is formed in the left side of the treatment box; a discharging opening is formed in the right side of the treatment box, a first partition plate and a second partition plate are vertically arranged in the treatment box, and the first partition plate is located on the left side of the second partition plate; the first material guide plate is arranged between the first conveying belt and the second conveying belt, and the second material guide plate is arranged between the second conveying belt and the third conveying belt, so that workpieces can be separated from one another through collision, the adhesion phenomenon between the workpieces is avoided, and the product quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of surface treatment, in particular to the technical field of drying devices. Background Art

[0002] Dacromet surface treatment technology was invented by Diamond Shamork Company in the United States in 1963. It is a member of the metal anti-corrosion system. Since it has a series of advantages that traditional electroplating cannot match, it was quickly introduced to the international market after its invention. Dacromet treatment does not require any pickling or passivation. Unlike electroplating, there is no problem of wastewater discharge containing zinc, chromium, acid, etc. During the Dacromet treatment process, volatile substances are almost zero discharged, which meets the requirements of some special substances stipulated by the environmental protection department, and their content is far below the limit.

[0003] The existing patent CN217190691U discloses an online drying system for a Dacromet coating line, which can continuously dry the workpieces. However, it is prone to adhesion during use, which is not conducive to the highest product quality. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a Dacromet drying device that prevents workpieces from sticking together, thereby preventing workpieces from sticking together.

[0005] To achieve the above-mentioned purpose, the present invention proposes a Dacromet drying device in which workpieces are not easy to stick together, comprising a processing box, a first conveyor belt, a second conveyor belt, a first partition plate, a second partition plate, a third conveyor belt, a first exhaust fan, a second exhaust fan, an exhaust pipe, a hot air blower, a cold air blower, a circulation pipe, and a circulation fan. The processing box is in an elongated shape, a feeding port is provided on the left side of the processing box, and a discharging port is provided on the right side of the processing box. A first partition plate and a second partition plate are provided inside the processing box, and the first partition plate and the second partition plate are both vertically arranged, the first partition plate is located on the left side of the second partition plate, and the first partition plate and the second partition plate divide the interior of the processing box into a preheating chamber, a drying chamber and a cooling chamber arranged in sequence from left to right, the first conveyor belt horizontally passes through the feeding port and the first partition plate from the left side of the processing box, a first window passed by the first conveyor belt is provided on the first partition plate, the second conveyor belt horizontally passes through the second partition plate from the inside of the drying chamber, a second window passed by the second conveyor belt is provided on the second partition plate, the second conveyor belt is located below the first conveyor belt, and the first conveyor belt A first material guide plate tilted downward from left to right is provided below the right end, the lower end of the first material guide plate is located above the left end of the second conveyor belt, the third conveyor belt passes through the discharge port horizontally from the inside of the cooling chamber, the third conveyor belt is located below the second conveyor belt, a second material guide plate tilted downward from left to right is provided below the right end of the second conveyor belt, the lower end of the second material guide plate is located above the left end of the third conveyor belt, the top end of the preheating chamber is provided with a first exhaust pipe connected to the inside of the preheating chamber, the first exhaust pipe is connected to the suction end of the first exhaust fan, A second exhaust pipe connected to the inside of the drying chamber is provided at the top of the drying chamber, and the second exhaust pipe is connected to the suction end of the second exhaust fan. The outlet end of the first exhaust fan and the outlet end of the second exhaust fan are both connected to the exhaust pipe through pipelines. A first air supply pipe is provided at the bottom of the drying chamber, and the first air supply pipe is connected to the hot air blower. A second air supply pipe is provided at the top of the cooling chamber, and the second air supply pipe is connected to the cold air blower. Both ends of the circulation pipe are respectively connected to the bottom of the preheating chamber and the bottom of the cooling chamber, and a circulation fan is installed on the circulation pipe.

[0006] Preferably, the first conveyor belt, the second conveyor belt and the third conveyor belt are all stainless steel mesh conveyor belts.

[0007] Preferably, the right end of the first conveyor belt is close to the first dividing plate, and the right end of the second conveyor belt is close to the second dividing plate.

[0008] Preferably, baffles are provided on both the rear and upper sides of the first material guide plate and the rear and upper sides of the second material guide plate, and the inclination angle of the second material guide plate is greater than the inclination angle of the first material guide plate.

[0009] Preferably, a trough body with only an upper end open is fixed inside the drying chamber, the trough body is located below the second conveyor belt and the first conveyor belt, the left and right ends of the trough body are respectively close to the first partition plate and the second partition plate, a plurality of electric heating wires are provided inside the trough body, and the bottom of the trough body is connected to the first air supply duct.

[0010] Preferably, a hollow blowing plate is provided inside the cooling chamber, and the blowing plate is located above the second conveyor belt and the third conveyor belt. The left and right ends of the air supply plate are respectively close to the second partition plate and the right side wall of the processing box. The upper part of the air supply plate is connected to the second air supply pipe, and a plurality of blowing pipes are provided at the bottom of the air supply plate.

[0011] Preferably, a heat exchange chamber is provided on the pipeline connecting the second exhaust fan and the exhaust pipe, and the circulation pipe runs through the heat exchange chamber.

[0012] Beneficial effects of the present invention: The present invention arranges the first material guide plate between the first conveyor belt and the second conveyor belt, and the second material guide plate between the second conveyor belt and the third conveyor belt, so that the workpieces can be separated from each other by collision, avoiding adhesion between the workpieces and ensuring the quality of the product.

[0013] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the Dacromet drying device of the present invention in which the workpiece is not easy to stick.

[0015] In the figure: 1-processing box, 2-preheating chamber, 3-drying chamber, 4-cooling chamber, 5-exhaust pipe, 11-first partition plate, 12-second partition plate, 13-first conveyor belt, 14-second conveyor belt, 15-third conveyor belt, 16-first material guide plate, 17-second material guide plate, 18-baffle, 20-first exhaust fan, 30-second exhaust fan, 31-heat exchange chamber, 35-hot air blower, 36-trough body, 37-electric heating wire, 40-circulation pipe, 41-circulation fan, 45-cold air blower, 46-blowing plate, 47-blowing pipe. DETAILED DESCRIPTION

[0016] Embodiment 1: See also Figure 1The Dacromet drying device for preventing workpieces from sticking easily of the present invention comprises a processing box 1, a first conveyor belt 13, a second conveyor belt 14, a first partition plate 11, a second partition plate 12, a third conveyor belt 15, a first exhaust fan 20, a second exhaust fan 30, an exhaust pipe 5, a hot air blower 35, a cold air blower 45, a circulation pipe 40, and a circulation fan 41. The processing box 1 is in an elongated shape, a material feed port is provided on the left side of the processing box 1, and a material discharge port is provided on the right side of the processing box 1. A first partition plate 11 and a second partition plate 12 are provided inside the processing box 1. The first partition plate 11 and the second partition plate 12 are both vertically arranged, and the first partition plate 11 is located on the left side of the second partition plate 12. The first partition plate 11 and the second partition plate 12 divide the inside of the processing box 1 into a preheating chamber 2, a drying chamber 3 and a cooling chamber 4 arranged from left to right.

[0017] The first conveyor belt 13 passes through the feed port and the first partition plate 11 horizontally from the left side of the processing box 1, and the first partition plate 11 is provided with a first window passed by the first conveyor belt 13. The second conveyor belt 14 passes through the second partition plate 12 horizontally from the inside of the drying chamber 3, and the second partition plate 12 is provided with a second window passed by the second conveyor belt 14. The second conveyor belt 14 is located below the first conveyor belt 13, and a first guide plate 16 inclined downward from left to right is provided below the right end of the first conveyor belt 13, and the lower end of the first guide plate 16 is located above the left end of the second conveyor belt 14. The third conveyor belt 15 passes through the discharge port horizontally from the inside of the cooling chamber 4, and the third conveyor belt 15 is located below the second conveyor belt 14. A second guide plate 17 inclined downward from left to right is provided below the right end of the second conveyor belt 14, and the lower end of the second guide plate 17 is located above the left end of the third conveyor belt 15.

[0018] A first exhaust pipe communicating with the interior of the preheating chamber 2 is disposed at the top of the preheating chamber 2 , and the first exhaust pipe is connected to the air suction end of the first exhaust fan 20 .

[0019] A second exhaust pipe connected to the interior of the drying chamber 3 is provided at the top of the drying chamber 3, and the second exhaust pipe is connected to the suction end of the second exhaust fan 30. The outlet end of the first exhaust fan 20 and the outlet end of the second exhaust fan 30 are both connected to the exhaust pipe 5 through pipelines. A first air supply pipe is provided at the bottom end of the drying chamber 3, and the first air supply pipe is connected to the hot air blower 35.

[0020] A second air supply pipe is provided on the top of the cooling chamber 4, and the second air supply pipe is connected to the air cooler 45. Both ends of the circulation pipe 40 are respectively connected to the bottom of the preheating chamber 2 and the bottom of the cooling chamber 4, and a circulation fan 41 is installed on the circulation pipe 40.

[0021] The first conveyor belt 13, the second conveyor belt 14, and the third conveyor belt 15 are all stainless steel mesh conveyor belts, and the first conveyor belt 13, the second conveyor belt 14, and the third conveyor belt 15 all transport workpieces from left to right.

[0022] The right end of the first conveyor belt 13 is close to the first partition plate 11 , and the right end of the second conveyor belt 14 is close to the second partition plate 12 .

[0023] In order to prevent the workpiece from falling from both sides of the first guide plate 16 and the second guide plate 17, baffles 18 are provided on both sides of the upper end surface of the first guide plate 16 and the upper end surface of the second guide plate 17, and the inclination angle of the second guide plate 17 is greater than the inclination angle of the first guide plate 16.

[0024] Embodiment 2: In order to increase the temperature in the drying chamber 3, a trough body 36 with only an upper end open is fixed inside the drying chamber 3. The trough body 36 is located below the second conveyor belt 14 and the first conveyor belt 13. The left and right ends of the trough body 36 are respectively close to the first partition plate 11 and the second partition plate 12. A plurality of electric heating wires 37 are provided inside the trough body 36, and the bottom of the trough body 36 is connected to the first air supply duct.

[0025] Embodiment three: In order to increase the contact area between the cold air and the workpiece, a hollow blowing plate 46 is provided inside the cooling chamber 4. The blowing plate 46 is located above the second conveyor belt 14 and the third conveyor belt 15. The left and right ends of the air supply plate are respectively close to the second partition plate 12 and the right side wall of the processing box 1. The upper part of the air supply plate is connected to the second air supply pipe, and a plurality of blowing pipes 47 are provided at the bottom of the air supply plate.

[0026] Embodiment 4: In order to increase the temperature of the air entering the preheating chamber 2 and reduce the temperature of the air discharged from the drying chamber 3, a heat exchange chamber 31 is provided on the pipeline connecting the second exhaust fan 30 and the exhaust pipe 5, and the circulation pipe 40 runs through the heat exchange chamber 31.

[0027] Working process of the present invention: During operation of the Dacromet drying device for workpieces that are not easy to stick together, the workpiece is placed on the left end of the first conveyor belt 13, and the first conveyor belt 13 transports the workpiece to the right. The workpiece is preheated when passing through the preheating chamber 2, and the workpiece falls from the first conveyor belt 13 onto the first guide plate 16. When the workpiece collides with the first guide plate 16, the workpieces that are stuck together will be shaken apart, so that the workpieces are no longer stuck together. The workpiece slides along the first guide plate 16 onto the second conveyor belt 14, and the workpiece is dried in the drying chamber 3. The workpiece falls from the second conveyor belt 14 onto the second guide plate 17. When the workpiece collides with the second guide plate 17, the workpieces that are stuck together will be shaken apart, so that the workpieces are no longer stuck together. The workpiece slides along the second guide plate 17 onto the third conveyor belt 15, and the workpiece is cooled in the cooling chamber 4. Finally, the workpiece falls from the right end of the third conveyor belt 15.

[0028] The circulation fan 41 draws the hotter air in the cooling chamber 4 that has been used to overcool the workpiece into the preheating chamber 2 through the circulation pipe 40 for preheating the workpiece. The air in the circulation pipe 41 can be further heated when passing through the heat exchange chamber 31, thereby increasing the temperature of the air entering the preheating chamber 2 and ensuring the preheating effect.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. Dacromet drying device for preventing workpiece from sticking, characterized by: The invention comprises a processing box (1), a first conveyor belt (13), a second conveyor belt (14), a first partition plate (11), a second partition plate (12), a third conveyor belt (15), a first exhaust fan (20), a second exhaust fan (30), an exhaust pipe (5), a hot air blower (35), a cold air blower (45), a circulation pipe (40), and a circulation fan (41). The processing box (1) is in an elongated shape. A material inlet is provided on the left side of the processing box (1), and a material outlet is provided on the right side of the processing box (1). A first partition plate (11) and a second partition plate (12) are provided inside the processing box (1). The first partition plate (11) and the second partition plate (12) are both vertically arranged. The first partition plate (11) is located on the second partition plate (12). On the left side of the partition plate (12), the first partition plate (11) and the second partition plate (12) divide the interior of the processing box (1) into a preheating chamber (2), a drying chamber (3) and a cooling chamber (4) arranged in sequence from left to right; the first conveyor belt (13) passes horizontally through the feed port and the first partition plate (11) from the left side of the processing box (1); the first partition plate (11) is provided with a first window through which the first conveyor belt (13) passes; the second conveyor belt (14) passes horizontally through the second partition plate (12) from the inside of the drying chamber (3); the second partition plate (12) is provided with a second window through which the second conveyor belt (14) passes; the second conveyor belt (14) is located below the first conveyor belt (13) A first guide plate (16) is provided below the right end of the first conveyor belt (13) and is inclined downward from left to right. The lower end of the first guide plate (16) is located above the left end of the second conveyor belt (14). The third conveyor belt (15) passes through the discharge port horizontally from the inside of the cooling chamber (4). The third conveyor belt (15) is located below the second conveyor belt (14). A second guide plate (17) is provided below the right end of the second conveyor belt (14) and is inclined downward from left to right. The lower end of the second guide plate (17) is located above the left end of the third conveyor belt (15). A first exhaust pipe connected to the inside of the preheating chamber (2) is provided at the top of the preheating chamber (2). The first exhaust pipe is connected to the exhaust gas of the first exhaust fan (20). The drying chamber (3) is provided with a second exhaust pipe connected to the interior of the drying chamber (3) at the top end thereof, the second exhaust pipe being connected to the air intake end of the second exhaust fan (30), the air outlet end of the first exhaust fan (20) and the air outlet end of the second exhaust fan (30) being connected to the exhaust pipe (5) through a pipeline, the drying chamber (3) is provided with a first air supply pipe at the bottom end thereof, the first air supply pipe being connected to the hot air blower (35), the cooling chamber (4) is provided with a second air supply pipe at the top end thereof, the second air supply pipe being connected to the cold air blower (45), the two ends of the circulation pipe (40) being respectively connected to the bottom of the preheating chamber (2) and the bottom of the cooling chamber (4), and a circulation fan (41) being installed on the circulation pipe (40).

2. The workpiece-resistant Dacromet drying device according to claim 1, characterized in that: The first conveyor belt (13), the second conveyor belt (14), and the third conveyor belt (15) are all stainless steel mesh conveyor belts.

3. The Dacromet drying device for preventing workpieces from sticking as claimed in claim 1, characterized in that: The right end of the first conveyor belt (13) is close to the first partition plate (11), and the right end of the second conveyor belt (14) is close to the second partition plate (12).

4. The Dacromet drying device for preventing workpieces from sticking as claimed in claim 1, characterized in that: Baffles (18) are provided on both the front and rear sides of the upper end surface of the first material guide plate (16) and on both the front and rear sides of the upper end surface of the second material guide plate (17), and the inclination angle of the second material guide plate (17) is greater than the inclination angle of the first material guide plate (16).

5. The Dacromet drying device for preventing workpieces from sticking as claimed in claim 1, characterized in that: A trough body (36) with only an upper end open is fixed inside the drying chamber (3). The trough body (36) is located below the second conveyor belt (14) and the first conveyor belt (13). The left and right ends of the trough body (36) are respectively close to the first partition plate (11) and the second partition plate (12). A plurality of electric heating wires (37) are arranged inside the trough body (36). The bottom of the trough body (36) is connected to the first air supply pipe.

6. The Dacromet drying device for preventing workpieces from sticking as claimed in claim 1, characterized in that: A hollow air blow tray (46) is provided inside the cooling chamber (4). The air blow tray (46) is located above the second conveyor belt (14) and the third conveyor belt (15). The left and right ends of the air blow tray are respectively close to the second partition plate (12) and the right side wall of the processing box (1). The upper part of the air blow tray is connected to the second air blow pipe, and a plurality of air blow pipes (47) are provided at the bottom of the air blow tray.

7. The workpiece-resistant Dacromet drying device according to claim 1, characterized in that: A heat exchange chamber (31) is provided on the pipeline connecting the second exhaust fan (30) and the exhaust pipe (5), and the circulation pipe (40) runs through the heat exchange chamber (31).

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