Drying mechanism for precise hardware product production

Abstract

The utility model relates to the field of hardware product drying, in particular to a drying mechanism for precise hardware product production, which comprises a drying box, a base, a rotating motor, a rotating structure, a hot air pump, a condensing pipe, a heating box, a hot air box, a cold air pump, a fixing frame and a cold air box, the hot air pump is fixedly connected to the left side of the top of the drying box, the condensation pipe is fixedly connected to the lower end of an output pipe of the hot air pump, the heating box is fixedly connected to the bottom of the condensation pipe, and the cold air pump is fixedly connected to the front end of the right side of the base. By means of the rotating structure, the precise hardware products make more sufficient contact with drying hot air or cooling cold air, heating is uniform, the heat exchange effect of the precise hardware products is enhanced, circulation is formed in the drying box in combination with the hot air and the cold air, and the precise hardware products inside are evenly and comprehensively dried and cooled.

Description

Technical Field

[0001] The utility model relates to the field of hardware product drying, in particular to a drying mechanism for the production of precision hardware products. Background Art

[0002] Before spraying anti-rust paint and wear-resistant coating on hardware products, the parts need to be pickled to remove oil and rust on the surface of the parts. After pickling, the acid on the parts is washed off with clean water, and then the water on the parts can be removed before spraying anti-rust paint and wear-resistant coating. In order to improve production efficiency, the surface of the parts needs to be dried.

[0003] In the existing drying devices for cleaning hardware products, the hardware products are usually stationary relative to the drying devices, so that the hardware products are heated unevenly during drying. At the same time, after drying, since the hardware products are made of metal materials with good thermal conductivity, the temperature of the dried products is high, and accidental touch may burn the operator's hands, posing a safety hazard.

[0004] Therefore, in order to address the above-mentioned problem that during the drying process, the precision hardware products may not be moved, resulting in uneven heating, and cannot be quickly cooled to room temperature after drying, resulting in difficulty in taking out, a drying mechanism for the production of precision hardware products can be designed to evenly dry the hardware products and improve the drying efficiency. At the same time, the hardware products can be cooled before being taken out to prevent harm to the operators. Utility Model Content

[0005] In order to overcome the problem that during the drying process, precision hardware products may not be moved, which may lead to uneven heating, and cannot be quickly cooled to room temperature after drying, making it difficult to take out.

[0006] The technical scheme of the utility model is as follows: a drying mechanism for the production of precision hardware products, comprising a drying box, a base, a box door, a fixed sleeve, a rotating motor, a rotating structure, a hot air pump, a condenser, a heating box, a hot air box, a cold air pump, a fixed frame, a liquid nitrogen generator, a spray valve and a cold air box, wherein the drying box is fixedly connected to the top of the base, the box door is hinged to the front side of the drying box, the fixed sleeve is fixedly connected to the top of the drying box, the rotating motor is arranged inside the fixed sleeve, the rotating structure is arranged inside the drying box, the output shaft of the rotating motor passes through the top of the drying box and is fixedly connected to the top of the rotating shaft inside the rotating structure, the hot air pump is fixedly connected to the left side of the top of the drying box, the condenser is fixedly connected to the lower end of the hot air pump output pipe, the heating box is fixedly connected to the bottom of the condenser, the hot air box is fixedly connected to the bottom of the left side of the drying box, the heating box is fixedly connected to the top of the hot air box, the cold air pump is fixedly connected to the front end of the right side of the base, the fixed frame is arranged at the rear end of the right side of the base, the liquid nitrogen generator is fixedly connected to the inside of the fixed frame, the output port of the liquid nitrogen generator is equipped with a spray valve, and the spray port of the spray valve is arranged at the bottom of the inner side of the cold air storage chamber.

[0007] Preferably, a rotating structure is provided inside the drying box so that the precision hardware products inside are not in a static state. The disc inside the rotating structure for placing the precision hardware products is a mesh disc, so that the precision hardware products are more fully in contact with the hot air for drying or the cold air for cooling, so that the heating is uniform and the heat exchange effect is enhanced. A hot air pump and a heating box are provided on the left side of the drying box to heat the air in the drying box, and the air enters the lower heat storage chamber for temporary storage. A condenser is provided before the heating box heats the air, and the moisture carried away by the hot air is condensed in the condenser, thereby enhancing the drying effect and preventing the moisture from re-condensing on the surface of the precision hardware products during the subsequent cooling process. A cold air pump and a liquid nitrogen generator are provided at the bottom right side of the drying box. After the gas is pumped into the cold air storage chamber, the air is cooled by liquid nitrogen spray, and then the cooling air is sprayed out through the top cold air valve to cool the precision hardware products in the drying box to prevent scalding of the operator when taking out.

[0008] Preferably, an opening adapted to the door is provided on the front side of the drying box, the door is hinged in the opening, a handle is provided on the door, an opening adapted to the output shaft of the rotating motor is provided on the top of the drying box, a sealing strip is provided at the connection between the drying box and the door to ensure that the hot air or cold air inside does not overflow, and the door is a double-door, which is convenient for operators to put in and take out precision hardware products.

[0009] Preferably, the hot air pump is arranged at the top left side of the drying box, the heat storage air chamber is arranged at the bottom left side of the drying box, the cold air pump is arranged at the bottom right side of the drying box, and the cold air storage chamber is arranged at the upper right end of the drying box. According to the phenomenon of thermal convection, the hot air and the cold air form a circulation in the drying box to evenly and comprehensively dry and cool the precision hardware products inside.

[0010] Preferably, two fixed sleeves are arranged at the top of the drying box, and two rotating motors are inverted in the fixed sleeves. The output shafts of the rotating motors are fixedly connected to the top of the rotating shaft through the openings. A bearing adapted to the rotating shaft is arranged at the top of the inner side of the drying box, and a bearing adapted to the rotating shaft is arranged at the top of the base. The rotating shaft in the rotating structure is rotatably connected between the upper and lower bearings. The bearings make the rotating shaft smoother when rotating, reduce the load on the top motor, save energy, and reduce the wear of the rotating shaft. The rotating motor is placed on the top of the drying box and fixed by the fixed sleeve to drive the internal rotating shaft to rotate. The transmission efficiency is high and the subsequent maintenance cost is reduced.

[0011] Preferably, the rotating structure includes a rotating shaft, a mesh disc, a buckle, and a barrier. The rotating shaft is fixedly connected to the output shaft of the rotating motor, the mesh disc is fixedly connected to the rotating shaft, the buckle is fixedly connected to the bottom of the mesh disc, and the barrier is fixedly connected to the outside of the mesh disc. Three mesh discs are arranged on the rotating shaft, and a barrier is arranged on the outside of the mesh disc to increase the number of precision hardware products that can be dried at one time and prevent the precision hardware products from falling when being placed in the mesh disc.

[0012] Preferably, the hot air box includes a heat storage chamber, a hot air valve, and a fan. The heat storage chamber is fixedly connected to the lower left side of the drying box, the hot air valve is arranged at the bottom of the heat storage chamber, and the fan is arranged on the right side of the hot air valve. The heat storage chamber temporarily stores high-pressure hot air. After being released through the hot air valve, the hot air is directly ejected toward the fan, and the complete jet hot air is dispersed to the entire drying box to evenly heat and dry the precision hardware products.

[0013] Preferably, the cold air box includes a cold air storage chamber, an insulation layer, and a cold air valve. The cold air storage chamber is arranged on the top of the cold air pump and the liquid nitrogen generator, the insulation layer is fixedly connected to the left side of the cold air storage chamber, and the cold air valve is arranged on the top of the cold air storage chamber. The cold air pump pumps gas into the cold air storage chamber, and sprays liquid nitrogen into the cold air storage chamber through the spray valve to cool the air, and then sprays it out through the top cold air valve. Due to the thermal convection phenomenon, a circulation is formed in the drying box, which accelerates the cooling process and prevents the operator from being scalded when taking it.

[0014] Beneficial effects of the utility model:

[0015] A rotating structure is set inside the drying box so that the precision hardware products are not in a static state inside. The disc used to place the precision hardware products inside the rotating structure is a mesh disc, so that the precision hardware products can be more fully exposed to the hot air for drying or the cold air for cooling, so that the heating is uniform and the heat exchange effect is enhanced;

[0016] A hot air pump and a heating box are set on the left side of the drying box to heat the air in the drying box, and the air enters the lower heat storage chamber for temporary storage. A condenser is set before the heating box heats the air, and the moisture carried away by the hot air is condensed in the condenser, which enhances the drying effect and prevents the moisture from re-condensing on the surface of the precision hardware products during the subsequent cooling process;

[0017] A cold air pump and a liquid nitrogen generator are installed at the bottom right side of the drying box. After the gas is pumped into the cold air storage chamber, the air is cooled by liquid nitrogen spray. Then the cooling air is sprayed out through the top cold air valve to cool the precision hardware products in the drying box to prevent scalding of the operator when taking them out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1The figure shows the overall three-dimensional structure of the drying mechanism for precision hardware product production of the utility model;

[0019] Figure 2 The diagram shows the left-side three-dimensional structure of the interior of the drying mechanism for precision hardware product production of the utility model;

[0020] Figure 3 The diagram shows the three-dimensional structure of the right side of the drying mechanism for precision hardware production of the utility model;

[0021] Figure 4 The three-dimensional structure diagram of the rotating structure of the drying mechanism for precision hardware products production of the utility model is shown;

[0022] Figure 5 The three-dimensional structure diagram of the hot air box of the drying mechanism for the production of precision hardware products of the utility model is shown;

[0023] Figure 6 The three-dimensional structure diagram of the cold air box of the drying mechanism for the production of precision hardware products of the utility model is shown;

[0024] Description of reference numerals: 1, drying box; 2, base; 3, box door; 4, fixed sleeve; 5, rotating motor; 7, hot air pump; 8, condenser; 9, heating box; 11, cold air pump; 12, fixed frame; 13, liquid nitrogen generator; 14, spray valve; 16, rotating shaft; 17, mesh disc; 18, buckle; 19, enclosure; 20, hot air storage chamber; 21, hot air valve; 22, fan; 23, cold air storage chamber; 24, insulation layer; 25, cold air valve; DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 6In this embodiment, the utility model provides a drying mechanism for the production of precision hardware products, including a drying box 1, a base 2, a box door 3, a fixed sleeve 4, a rotating motor 5, a rotating structure, a hot air pump 7, a condenser 8, a heating box 9, a hot air box, a cold air pump 11, a fixed frame 12, a liquid nitrogen generator 13, a spray valve 14 and a cold air box. The drying box 1 is fixedly connected to the top of the base 2, the box door 3 is hinged to the front side of the drying box 1, the fixed sleeve 4 is fixedly connected to the top of the drying box 1, the rotating motor 5 is arranged inside the fixed sleeve 4, and the rotating structure is arranged in the drying box. 1, the output shaft of the rotating motor 5 passes through the top of the drying box 1 and is fixedly connected to the top of the rotating shaft 16 inside the rotating structure, the hot air pump 7 is fixedly connected to the left side of the top of the drying box 1, the condenser 8 is fixedly connected to the lower end of the output pipe of the hot air pump 7, the heating box 9 is fixedly connected to the bottom of the condenser 8, the hot air box is fixedly connected to the bottom of the left side of the drying box 1, the heating box 9 is fixedly connected to the top of the hot air box, the cold air pump 11 is fixedly connected to the front end of the right side of the base 2, the fixing frame 12 is arranged at the rear end of the right side of the base 2, the liquid nitrogen generator 13 is fixedly connected to the inside of the fixing frame 12, and the liquid nitrogen generator 1 A spray valve 14 is installed on the output port of 3, and the spray port of the spray valve 14 is set at the bottom of the inner side of the cold air storage chamber 23. A rotating structure is set inside the drying box 1, so that the precision hardware products are not in a static state inside. The disc used to place the precision hardware products inside the rotating structure is a mesh disc 17, so that the precision hardware products are more fully contacted with the hot air for drying or the cold air for cooling, so that the heating is uniform and the heat exchange effect is enhanced. A hot air pump 7 and a heating box 9 are set on the left side of the drying box 1 to heat the air in the drying box 1 and enter the lower heat storage chamber 20 The air is temporarily stored in the drying box 1. A condenser 8 is provided before the heating box 9 heats the air. The moisture carried away by the hot air is condensed in the condenser 8, which enhances the drying effect and prevents the moisture from re-condensing on the surface of the precision hardware products during the subsequent cooling process. A cold air pump 11 and a liquid nitrogen generator 13 are provided at the bottom right side of the drying box 1. After the gas is pumped into the cold air storage chamber 23, the air is cooled by liquid nitrogen spray. Subsequently, the cooling air is sprayed out through the top cold air valve 25 to cool the precision hardware products in the drying box 1 to prevent the operator from being scalded when taking out.

[0027] See also Figure 2-Figure 3In this embodiment, an opening adapted to the door 3 is provided on the front side of the drying box 1, the door 3 is hinged in the opening, a handle is provided on the door 3, an opening adapted to the output shaft of the rotating motor 5 is provided on the top of the drying box 1, a sealing strip is provided at the connection between the drying box 1 and the door 3 to ensure that the hot air or cold air inside does not overflow, the door 3 is a double-door, which is convenient for operators to put in and take out precision hardware products, a hot air pump 7 is arranged at the top left side of the drying box 1, a heat storage air chamber 20 is arranged at the bottom left side of the drying box 1, a cold air pump 11 is arranged at the bottom right side of the drying box 1, and a cold air storage chamber 23 is arranged at the upper right end of the drying box 1. According to the phenomenon of thermal convection, hot air and cold air form a circulation in the drying box 1 to circulate the precision hardware inside. The products are dried and cooled uniformly and comprehensively. Two fixed sleeves 4 are arranged on the top of the drying box 1. Two rotating motors 5 are inverted in the fixed sleeves 4. The output shafts of the rotating motors 5 are fixedly connected to the top of the rotating shaft 16 through the openings. A bearing adapted to the rotating shaft 16 is arranged on the top of the inner side of the drying box 1. A bearing adapted to the rotating shaft 16 is arranged on the top of the base 2. The rotating shaft 16 in the rotating structure is rotatably connected between the upper and lower bearings. The bearings make the rotating shaft 16 smoother when rotating, reduce the load of the top motor, save energy, and reduce the wear of the rotating shaft 16. The rotating motor 5 is placed on the top of the drying box 1 and fixed by the fixed sleeves 4 to drive the internal rotating shaft 16 to rotate. The transmission efficiency is high and the later maintenance cost is reduced.

[0028] See also Figure 4-Figure 6In this embodiment, the rotating structure includes a rotating shaft 16, a mesh disc 17, a buckle 18, and a fence 19. The rotating shaft 16 is fixedly connected to the output shaft of the rotating motor 5, the mesh disc 17 is fixedly connected to the rotating shaft 16, the buckle 18 is fixedly connected to the bottom of the mesh disc 17, and the fence 19 is fixedly connected to the outside of the mesh disc 17. Three mesh discs 17 are arranged on the rotating shaft 16, and the fence 19 is arranged on the outside of the mesh disc 17 to increase the number of precision hardware products that can be dried at one time and prevent the precision hardware products from falling when they are placed in the mesh disc 17. The hot air box includes a heat storage air chamber 20, a hot air valve 21, and a fan 22. The heat storage air chamber 20 is fixedly connected to the lower left part of the drying box 1, the hot air valve 21 is arranged at the bottom of the heat storage air chamber 20, and the fan 22 is arranged on the right side of the hot air valve 21 On the other hand, high-pressure hot air is temporarily stored in the heat storage chamber 20. After being released through the hot air valve 21, the directly ejected hot air is ejected toward the fan 22, and the complete jet hot air is dispersed to the entire drying box 1 to evenly heat and dry the precision hardware products. The cold air box includes a cold air storage chamber 23, a thermal insulation layer 24, and a cold air valve 25. The cold air storage chamber 23 is arranged on the top of the cold air pump 11 and the liquid nitrogen generator 13. The thermal insulation layer 24 is fixedly connected to the left side of the cold air storage chamber 23. The cold air valve 25 is arranged on the top of the cold air storage chamber 23. The cold air pump 11 pumps gas into the cold air storage chamber 23, and sprays liquid nitrogen into the cold air storage chamber 23 through the spray valve 14 to cool the air, and then sprays it out through the top cold air valve 25. Due to the thermal convection phenomenon, a circulation is formed in the drying box 1, which accelerates the cooling process and prevents the operator from being scalded when taking it.

[0029] When working, the box door 3 is opened by the handle, and the precision hardware products to be dried are placed on the mesh disc 17 inside the rotating structure. After the precision hardware products to be dried are evenly placed on the outsides of the six mesh discs 17, the mesh discs 17 are rotated by the rotating motor 5 or direct manpower, and the area on the inside where the precision hardware products are not placed is rotated to the outside, and the precision hardware products to be dried are continued to be placed on the mesh discs 17. When the mesh discs 17 are placed, the box door 3 is closed, and the hot air pump 7 and the heating box 9 on the left are started to pump the air at the top of the drying box 1 into the heating box 9. The heating wire in the heating box 9 heats the pumped air, which is then stored in the bottom heat storage chamber 20 and passed into the drying box 1 through the hot air valve 21. A hot air circulation from bottom to top is formed, and the hot air passes through the mesh disc 17 from bottom to top to dry the precision hardware products in all directions. After the specified drying time is reached, the heating wire, the hot air pump 7 and the hot air valve 21 are turned off and the box door 3 is opened. After the hot air is dissipated, the box door 3 is closed again, and then the cold air pump 11 is started to pump air into the right cold air storage chamber 23, and the liquid nitrogen in the liquid nitrogen generator 13 is mixed with the air in the cold air storage chamber 23 through the spray valve 14 to cool the air. Then, the cold air is input into the drying box 1 through the top cold air valve 25, and a cold air circulation from top to bottom is formed in the drying box 1, which quickly cools down the precision hardware products whose internal temperature is still high. After cooling to room temperature, the cold air pump 11 and the spray valve 14 are turned off, and the precision hardware products are taken out after opening the box door 3.

[0030] Through the above steps, a rotating structure is arranged inside the drying box 1, so that the precision hardware products are not in a static state inside. The disc used to place the precision hardware products inside the rotating structure is a mesh disc 17, so that the precision hardware products are more fully in contact with the hot air for drying or the cold air for cooling, so that the heating is uniform and the heat exchange effect is enhanced. A hot air pump 7 and a heating box 9 are arranged on the left side of the drying box 1 to heat the air in the drying box 1, and the air enters the lower heat storage air chamber 20 for temporary storage. A condenser 8 is arranged before the heating box 9 heats the air, and the moisture taken away by the hot air is condensed in the condenser 8, so as to enhance the drying effect and prevent the moisture from re-condensing on the surface of the precision hardware products during the subsequent cooling process. A cold air pump 11 and a liquid nitrogen generator 13 are arranged at the bottom of the right side of the drying box 1. After the gas is pumped into the cold air storage chamber 23, the air is cooled by liquid nitrogen spray, and then the cooling air is sprayed out through the top cold air valve 25 to cool the precision hardware products in the drying box 1 to prevent the operator from being scalded when taking out.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A drying mechanism for the production of precision hardware products, comprising a drying box (1), a base (2), a box door (3), a fixed sleeve (4), a rotating motor (5), a hot air pump (7), a condenser (8), a heating box (9), a cold air pump (11), a fixed frame (12), a liquid nitrogen generator (13) and a spray valve (14); characterized in that: The drying box (1) is fixedly connected to the top of the base (2); the box door (3) is hinged to the front side of the drying box (1); the fixed sleeve (4) is fixedly connected to the top of the drying box (1); the rotating motor (5) is arranged inside the fixed sleeve (4); the rotating structure is arranged inside the drying box (1); the output shaft of the rotating motor (5) passes through the top of the drying box (1) and is fixedly connected to the top of the rotating shaft (16) inside the rotating structure; the hot air pump (7) is fixedly connected to the left side of the top of the drying box (1); and the condenser (8) is fixedly connected to the hot air pump (7). The lower end of the air pump (7) output pipe, the heating box (9) is fixedly connected to the bottom of the condenser (8), the hot air box is fixedly connected to the left bottom of the drying box (1), the heating box (9) is fixedly connected to the top of the hot air box, the cold air pump (11) is fixedly connected to the right front end of the base (2), the fixing frame (12) is arranged at the right rear end of the base (2), the liquid nitrogen generator (13) is fixedly connected to the inside of the fixing frame (12), and the output port of the liquid nitrogen generator (13) is installed with a spray valve (14), and the spray port of the spray valve (14) is arranged at the bottom of the inner side of the cold air storage chamber (23).

2. The drying mechanism for precision hardware product production according to claim 1 is characterized in that: An opening adapted to fit the oven door (3) is provided on the front side of the drying oven (1), the oven door (3) is hinged in the opening, a handle is provided on the oven door (3), and an opening adapted to fit the output shaft of the rotating motor (5) is provided on the top of the drying oven (1).

3. The drying mechanism for precision hardware product production according to claim 2 is characterized in that: The hot air pump (7) is arranged at the top of the left side of the drying box (1), the hot air storage chamber (20) is arranged at the bottom of the left side of the drying box (1), the cold air pump (11) is arranged at the bottom of the right side of the drying box (1), and the cold air storage chamber (23) is arranged at the upper end of the right side of the drying box (1).

4. The drying mechanism for precision hardware product production according to claim 3 is characterized in that: Two fixed sleeves (4) are arranged on the top of the drying box (1), two rotating motors (5) are inverted in the fixed sleeves (4), the output shafts of the rotating motors (5) are fixedly connected to the top of the rotating shaft (16) through the openings, a bearing matching the rotating shaft (16) is arranged on the top of the inner side of the drying box (1), a bearing matching the rotating shaft (16) is arranged on the top of the base (2), and the rotating shaft (16) in the rotating structure is rotatably connected between the upper and lower bearings.

5. The drying mechanism for precision hardware product production according to claim 4 is characterized in that: The rotating structure comprises a rotating shaft (16), a mesh disc (17), a buckle (18), and a baffle (19); the rotating shaft (16) is fixedly connected to the output shaft of the rotating motor (5); the mesh disc (17) is fixedly connected to the rotating shaft (16); the buckle (18) is fixedly connected to the bottom of the mesh disc (17); and the baffle (19) is fixedly connected to the outside of the mesh disc (17).

6. The drying mechanism for precision hardware product production according to claim 5 is characterized in that: The hot air box comprises a heat storage chamber (20), a hot air valve (21), and a fan (22); the heat storage chamber (20) is fixedly connected to the lower left side of the drying box (1); the hot air valve (21) is arranged at the bottom of the heat storage chamber (20); and the fan (22) is arranged on the right side of the hot air valve (21).

7. The drying mechanism for precision hardware product production according to claim 6 is characterized in that: The cold air box comprises a cold air storage chamber (23), a heat-insulating layer (24), and a cold air valve (25); the cold air storage chamber (23) is arranged on top of the cold air pump (11) and the liquid nitrogen generator (13); the heat-insulating layer (24) is fixedly connected to the left side of the cold air storage chamber (23); and the cold air valve (25) is arranged on the top of the cold air storage chamber (23).

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