Spraying piece surface drying apparatus

Abstract

The present application discloses a surface drying equipment for spraying parts, which comprises a hot air pipe, a plurality of air ports are arranged in the upper wall of the hot air pipe, a plurality of air ducts are installed on the air ports, a plurality of air pipes are installed in the air ducts, a plurality of switch mechanisms are arranged in the air pipes, a plurality of fixed sleeves are fixedly installed on the upper ends of the air ducts, a plurality of plungers are vertically movably installed in the fixed sleeves, an outer frame is sleeved on the outer side of the hot air pipe, a plurality of fins are fixedly installed on the upper end of the outer frame, a cavity is arranged in the inner side of the fin, and a plurality of air outlets are arranged in the side walls of the cavity. The present application relates to the technical field of drying equipment, and the air ducts are installed on the air ports of the hot air pipe, the outer frame is sleeved on the outer side of the hot air pipe, and the fins are installed on the outer frame, so that the inner and outer sides of the fins of the radiator can be dried at the same time, the heating is uniform and consistent, the air flow is rapid, and the problems of wrinkling, water marks, small cracks or white mist can be avoided.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, specifically to a drying equipment for the surface of sprayed parts. Background Technology

[0002] Some large equipment parts take a long time to air dry after being painted, so drying equipment is usually used to dry them quickly. Existing drying equipment on the market usually uses hot air drying, which is simple, reliable and inexpensive, and is the preferred method under normal drying conditions.

[0003] However, in practice, when using existing drying equipment to dry fluid radiators, phenomena such as wrinkling, watermarks, fine cracks, or white fogging may appear on the radiator surface. These phenomena are very subtle and do not appear on the outer surface of the equipment, making them difficult to detect. The heat dissipation part of this fluid radiator consists of several fins with internal cavities connected by pipes. The fins are numerous and relatively close together. The radiator fins are painted by spraying. When using existing drying equipment, the outer surface of the radiator usually dries quickly. However, due to the small distance between the fins and the large number of fins arranged together, the paint on the fins in the middle section dries more slowly, resulting in wrinkling or fine cracks. In cold northern weather, the overall temperature of the radiator is low. When it is sent into the drying equipment, the surface temperature of the radiator rises quickly and the drying is also fast. However, due to the large number of fins and the small spacing, the temperature of the fins in the middle part rises slowly, and the air circulation is relatively slow compared to the surface. The water vapor generated by the alternation of hot and cold is not easy to dissipate and will accumulate on the surface of the radiator fins. Under these circumstances, water stains or white fog will form on the surface of the middle fins.

[0004] While the aforementioned phenomena do not affect the overall use of the fluid radiator and its appearance is relatively smooth and aesthetically pleasing, the saying "a beautiful exterior but a lousy interior" can affect product quality, reputation, and ultimately, the company's development. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a surface drying device for sprayed parts, which solves the problems of wrinkling, watermarks, fine cracks, or white fog that occur when drying fins in existing drying equipment.

[0006] To achieve the above objectives, the present invention provides a surface drying device for sprayed parts, comprising a hot air duct, wherein a plurality of air outlets are provided in the upper wall of the hot air duct, each of the plurality of air outlets is equipped with an air duct, each of the plurality of air ducts is equipped with an air duct, each of the plurality of air ducts is equipped with a switching mechanism, each of the plurality of air ducts is fixedly inserted into the upper end of the interior of the plurality of air ducts, each of the plurality of fixed sleeves is vertically movably inserted into the plurality of fixed sleeves, the hot air duct is fitted with an outer frame, the upper end of the outer frame is fixedly installed with fins, the fins are provided with cavities, the two side walls of the cavities are provided with a plurality of air outlets, the bottom of the cavities is connected to a pair of high-pressure hoses, the plungers are provided with air passages, the upper and lower ends of the air passages are respectively provided with a pair of air outlets and a pair of air inlets, and the pair of high-pressure hoses are respectively connected to the pair of air outlets.

[0007] Preferably, the switching mechanism includes a conical channel formed within the duct, a conical plug inserted within the conical channel, a wind cup groove at the bottom of the conical plug, a slider vertically installed within the wind cup groove, two pairs of fan-shaped supports fixedly installed on the inner wall of the duct, a fixed plate fixedly installed between the two pairs of fan-shaped supports, the slider vertically slidingly inserted into the fixed plate, a baffle fixedly installed at the lower end of the slider, a spring sleeved on the outside of the slider, the upper and lower ends of the spring connected to the lower wall of the fixed plate and the upper wall of the baffle, respectively, and the lower end of the plunger connected to the upper end of the conical plug.

[0008] Preferably, the lower end of the outer frame slides in contact with the lower end of the hot air duct, and a second slider is fixedly installed on the inner walls of both sides of the outer frame. A pair of second sliders slide on the upper wall of the hot air duct. An inclined surface is provided on the inner upper wall of the outer frame, and a pulley is installed on the upper end of the plunger. The rotating end of the pulley contacts the inclined surface.

[0009] Preferably, a ring is fixedly installed on the inner wall of the air duct, the air pipe is inserted into the ring, an air chamber is opened inside the ring, an upper air hole and a lower air hole are opened at the upper and lower ends of the air chamber, respectively, a piston is movably inserted into the air chamber, a scale rod and a sliding rod are installed at the upper and lower ends of the piston rod, respectively, the scale rod and the sliding rod slide in the upper air hole and the lower air hole, and an observation window is provided in the side wall of the air duct.

[0010] Preferably, an outer edge is fixedly fitted on the outer wall of the air duct, and a rubber ring is installed inside the lower wall surface of the outer edge, and the outer edge is in contact with the upper wall surface of the hot air pipe.

[0011] Preferably, a fastening bolt is screwed into the lower end of the outer frame, and the upper end of the fastening bolt is in contact with the hot air pipe.

[0012] Preferably, the lower end of the air duct is provided with an external thread, which is screwed into the air outlet.

[0013] Beneficial effects

[0014] This invention provides a surface drying device for sprayed parts, which has the following beneficial effects:

[0015] 1. Install an air duct on the air outlet of the hot air duct. An outer frame is fitted around the hot air duct, and fins are installed on the frame. When the outer frame moves to the right, the inclined surface presses down on the pulley, which in turn presses down on the plunger, which in turn presses down on the conical seal. When the air inlet at the lower end of the plunger protrudes from the fixed sleeve, insert the fins into the gaps between the fins of the fluid radiator. Hot air is then introduced into the hot air duct. The hot air from the duct flows through the air duct, along the gap between the duct and the conical seal, through the air inlet and air duct, and out through the air outlet. It then passes through the high-pressure hose on the air outlet and enters the cavity inside the fins, finally being ejected from the air outlet. This method can simultaneously dry the inside and outside of the radiator fins, ensuring uniform heating and rapid airflow, thus avoiding problems such as wrinkles, watermarks, fine cracks, or white fogging.

[0016] 2. The hot air duct is quite long, so there are many air ducts on it. During use, some air ducts may not be used. When not in use, the spring will, under the action of contraction force, push the conical seal into the air duct through the baffle and slider to prevent air leakage. Since the hot air in the hot air duct has a certain pressure, it will push the conical seal into the air duct further against the air cup groove, achieving double fixing and sealing.

[0017] 3. An air chamber is provided inside the ring, and a piston rod is provided inside the air chamber. When the air duct is in a closed state, the hot air in the air duct will push the sliding rod, piston rod, and scale rod upward. The upper end of the scale rod will contact the bottom of the fixed sleeve. It can be seen from the observation window that when the air duct leaks, the pressure of the hot air is insufficient, and the sliding rod, piston rod, and scale rod will fall down, indicating that the air duct is leaking or damaged and needs maintenance or replacement. When the pressure of the hot air in the hot air pipe fluctuates severely, the sliding rod, piston rod, and scale rod will float up and down. At this time, the upper end of the scale rod will continuously hit the fixed sleeve, producing an impact sound, indicating that the pressure has fluctuated severely. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a front sectional view of the air duct of the present invention.

[0020] Figure 3 This is a top view of the fixing plate and the fan-shaped bracket of the present invention.

[0021] In the diagram: 1. Hot air duct; 2. Outer frame; 3. Second slider; 4. Inclined surface; 5. Pulley; 6. High-pressure hose; 7. Fin; 8. Cavity; 9. Air outlet; 10. Air duct; 11. Observation window; 12. Scale rod; 13. Piston column; 14. Sliding rod; 15. Air duct; 16. Air cup groove; 17. Fixing plate; 18. Outer edge; 19. External thread; 20. Baffle; 21. Spring; 22. Fan-shaped bracket; 23. Slider; 24. Ring; 25. Fixing sleeve; 26. Air duct; 27. Air inlet; 28. Air outlet; 29. ​​Plunger; 30. Conical plug. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-3 This invention provides a technical solution: a surface drying device for sprayed parts, including a hot air pipe 1. The upper wall of the hot air pipe 1 has several air outlets. Each of the air outlets is equipped with an air duct 10. Each of the air ducts 10 has an air pipe 15 installed inside it. Each of the air pipes 15 has a switching mechanism installed inside it. Each of the air ducts 10 has a fixed sleeve 25 inserted into its upper end. Each of the fixed sleeves 25 has a plunger 29 vertically inserted into it. The hot air pipe 1 is fitted with an outer frame 2. The upper end of the outer frame 2 is fixedly equipped with fins 7. The fins 7 have a cavity 8 inside. Each cavity 8 has several air outlets 9 on its two side walls. The bottom of the cavity 8 is connected to a pair of high-pressure hoses 6. The plunger 29 has an air passage 26 inside it. The upper and lower ends of the air passage 26 are respectively provided with a pair of air outlets 28 and a pair of air inlets 27. The pair of high-pressure hoses 6 are respectively connected to the pair of air outlets 28.

[0024] In this technical solution, the hot air duct 1 has a square structure instead of the traditional circular structure, which makes it easier for the outer frame 2 to move left and right on the hot air duct 1. When the fastening bolts are tightened, the outer frame 2 can be fixed on the hot air duct 1.

[0025] The hot air duct 1 is provided with several air ducts 10, and an outer frame 2 and fins 7 can be installed on each air duct 10;

[0026] The high-pressure hose 6 has a certain length, which is sufficient to ensure that the outer frame 2 can move left and right on the hot air duct 1.

[0027] Furthermore, the switching mechanism includes a conical channel opened in the air duct 15, a conical plug 30 inserted in the conical channel, an air cup groove 16 opened at the bottom of the conical plug 30, a slider 23 vertically installed in the air cup groove 16, two pairs of fan-shaped brackets 22 fixedly installed on the inner wall of the air duct 10, a fixing plate 17 fixedly installed between the two pairs of fan-shaped brackets 22, the slider 23 vertically slidingly inserted in the fixing plate 17, a baffle 20 fixedly installed at the lower end of the slider 23, a spring 21 sleeved on the outside of the slider 23, the upper and lower ends of the spring 21 being connected to the lower wall surface of the fixing plate 17 and the upper wall surface of the baffle 20 respectively, and the lower end of the plunger 29 being connected to the upper end of the conical plug 30;

[0028] An inclined surface 4 is provided on the upper inner wall of the outer frame 2. Since the spring 21 is in a stretched state, the pulley 5 is always in contact with the inclined surface 4 under the action of the spring contraction force. When the inclined surface 4 moves to the right, it will apply downward pressure to the pulley 5. When it moves to the left, the spring 21 will lift the pulley 5.

[0029] Furthermore, the lower end of the outer frame 2 is in sliding contact with the lower end of the hot air pipe 1. Second sliders 3 are fixedly installed on the inner walls of both sides of the outer frame 2. A pair of second sliders 3 slide on the upper wall of the hot air pipe 1. An inclined surface 4 is provided on the inner upper wall of the outer frame 2. A pulley 5 is installed on the upper end of the plunger 29. The rotating end of the pulley 5 is in contact with the inclined surface 4.

[0030] Furthermore, a ring 24 is fixedly installed on the inner wall of the air duct 10, and the air pipe 15 is inserted into the ring 24. An air chamber is opened inside the ring 24, and an upper air hole and a lower air hole are opened at the upper and lower ends of the air chamber. A piston rod 13 is movably inserted into the air chamber. A scale rod 12 and a slide rod 14 are installed at the upper and lower ends of the piston rod 13, respectively. The scale rod 12 and the slide rod 14 slide in the upper air hole and the lower air hole, respectively. An observation window 11 is provided in the side wall of the air duct 10. This design allows for preliminary observation of whether the air duct 10 is leaking air and whether the hot air pressure in the hot air pipe 1 is sufficiently stable.

[0031] Furthermore, an outer edge 18 is fixedly fitted on the outer wall of the air duct 10, and a rubber ring is installed inside the lower wall surface of the outer edge 18. The outer edge 18 is in contact with the upper wall surface of the hot air pipe 1.

[0032] Furthermore, a fastening bolt is screwed into the lower end of the outer frame 2, and the upper end of the fastening bolt is in contact with the hot air pipe 1.

[0033] Furthermore, the lower end of the air duct 10 is provided with an external thread 19, which is screwed into the air outlet.

[0034] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0035] Example: In use, the outer frame 2 is moved to the right side of the hot air pipe 1. When the inclined surface 4 moves to the right, it will apply downward pressure to the pulley 5. The pulley 5 will press down the plunger 29, and the plunger 29 will press down the conical seal 30. When the air inlet 27 at the lower end of the plunger 29 is exposed from the lower end of the fixing sleeve 25, the fins 7 are inserted into the gap between the fins of the fluid radiator that needs to be dried. Tighten the fastening bolts to fix the outer frame 2 on the hot air pipe 1. Then, hot air is introduced into the hot air pipe 1. The hot air in the hot air pipe 1 will enter the cavity 8 in the fins 7 through the air inlet 27, air passage 26, and air outlet 28 through the air inlet 27, air passage 26, and air outlet 28 via the high-pressure hose 6 from the air duct 10. Finally, it will be sprayed out from the air outlet 9 to achieve the drying function.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface drying device for sprayed parts, comprising a hot air duct (1), wherein a plurality of air outlets are provided in the upper wall of the hot air duct (1), characterized in that, A duct (10) is installed on each of the aforementioned air outlets. A duct (15) is installed inside each of the aforementioned ducts (10). A switching mechanism is provided inside each of the aforementioned ducts (15). A fixing sleeve (25) is fixedly inserted into the upper end of each of the aforementioned ducts (10). A plunger (29) is vertically inserted into each of the aforementioned fixing sleeves (25). An outer frame (2) is fitted around the hot air pipe (1). A fin (7) is fixedly installed at the upper end of the outer frame (2). A cavity (8) is provided inside the fin (7). Several air outlets (9) are opened in the two side walls of the cavity (8). A pair of high-pressure hoses (6) are connected to the bottom of the cavity (8). An air passage (26) is opened inside the plunger (29). A pair of air outlets (28) and a pair of air inlets (27) are provided at the upper and lower ends of the air passage (26). A pair of high-pressure hoses (6) are connected to a pair of air outlets (28). The switching mechanism includes a conical channel opened in the air duct (15), a conical plug (30) inserted in the conical channel, an air cup groove (16) opened at the bottom of the conical plug (30), a slider (23) vertically installed in the air cup groove (16), two pairs of fan-shaped brackets (22) fixedly installed on the inner wall of the air duct (10), a fixed plate (17) fixedly installed between the two pairs of fan-shaped brackets (22), the slider (23) vertically slidingly inserted in the fixed plate (17), a baffle (20) fixedly installed at the lower end of the slider (23), a spring (21) sleeved on the outside of the slider (23), the upper and lower ends of the spring (21) are respectively connected to the lower wall of the fixed plate (17) and the upper wall of the baffle (20), and the lower end of the plunger (29) is connected to the upper end of the conical plug (30). The lower end of the outer frame (2) slides in contact with the lower end of the hot air pipe (1). The inner walls on both sides of the outer frame (2) are respectively fixedly installed with second sliders (3). A pair of second sliders (3) slide on the upper wall of the hot air pipe (1). The upper inner wall of the outer frame (2) is provided with an inclined surface (4). The upper end of the plunger (29) is equipped with a pulley (5). The rotating end of the pulley (5) is in contact with the inclined surface (4). A ring (24) is fixedly installed on the inner wall of the air duct (10). The air pipe (15) is inserted into the ring (24). An air chamber is opened inside the ring (24). An upper air hole and a lower air hole are opened at the upper and lower ends of the ring (24) and the air chamber, respectively. A piston column (13) is movably inserted in the air chamber. A scale rod (12) and a slide rod (14) are installed at the upper and lower ends of the piston column (13), respectively. The scale rod (12) and the slide rod (14) slide in the upper air hole and the lower air hole, respectively. An observation window (11) is provided in the side wall of the air duct (10).

2. The surface drying equipment for sprayed parts according to claim 1, characterized in that, An outer edge (18) is fixedly fitted on the outer wall of the air duct (10). A rubber ring is installed inside the lower wall of the outer edge (18). The outer edge (18) is in contact with the upper wall of the hot air pipe (1).

3. The surface drying equipment for sprayed parts according to claim 1, characterized in that, The lower end of the outer frame (2) is screwed with a fastening bolt, and the upper end of the fastening bolt is in contact with the hot air pipe (1).

4. The surface drying equipment for sprayed parts according to claim 1, characterized in that, The lower end of the air duct (10) is provided with an external thread (19), which is screwed into the air outlet.

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