Drying box used after part spraying

Abstract

The utility model relates to the technical field of air drying equipment, in particular to a drying box for parts after being sprayed, which comprises a barrel body, the barrel body comprises an outer barrel and an inner barrel, uniformly distributed air holes are arranged on the peripheral side of the inner barrel, an annular cavity communicated with the air holes is arranged between the outer barrel and the inner barrel, and the annular cavity is communicated with an airflow dispersing device. The airflow dispersing device can enable part of the air holes to enter air and part of the air holes to exhaust air at the same time, and each air hole can be switched between air inflow and air exhaust in a reciprocating mode. According to the device, hot airflow is conveyed to the annular cavity through the airflow dispersing device, part of air holes communicating with the annular cavity are subjected to air inlet, part of air holes are subjected to air exhaust, each air hole can be subjected to reciprocating conversion between air inlet and air exhaust, airflow flows in multiple directions among the air holes, parts needing to be dried are dried more uniformly after the interior of the barrel is sprayed, and the drying efficiency is improved. Due to the fact that airflow flows in multiple directions, the drying efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of air drying equipment, in particular to a drying box for parts after spraying. Background Art

[0002] After spraying, parts need to be dried. After the paint forms a coating on the surface of the parts, it takes a certain amount of time to dry and solidify to ensure that the coating can maintain stable performance and quality. The drying process helps the solvent or water in the paint to evaporate, prompting the paint to form a uniform and dense coating structure.

[0003] Drying methods generally include natural air drying and hot air drying. The efficiency of natural air drying is relatively slow, and the benefits it produces for manufacturing companies are relatively low. Therefore, hot air drying with manual intervention is generally used. In the prior art, the direction of the hot air flow during hot air drying is generally a fixed flow direction or two flow directions alternating in positive and reverse directions. Since the air flow direction angle changes less, the drying of the sprayed parts is uneven. In order to ensure that the entire part can achieve an effective drying effect, the only way to achieve a comprehensive drying effect is to increase the drying time, which results in reduced drying efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that the airflow angle changes less during hot air drying, resulting in uneven drying of parts, and that the overall drying effect can only be achieved by increasing the drying time, resulting in reduced drying efficiency, and proposes a drying box for parts after spraying.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A post-spraying drying box for parts comprises a cylinder, wherein the cylinder comprises an outer cylinder and an inner cylinder, the inner cylinder is provided with evenly distributed air holes on its circumference, an annular chamber connected to the air holes is provided between the outer cylinder and the inner cylinder, the annular chamber is connected to an air flow dispersion device, the air flow dispersion device can allow some of the air holes to intake air and some of the air holes to exhaust air at the same time, and each air hole can switch back and forth between intake and exhaust.

[0007] The cylinder is located at the top of the annular chamber and is open. The airflow dispersion device includes an airflow distribution box and a rotating motor that drives the airflow distribution box to rotate reciprocally. The airflow distribution box has an air outlet and an air inlet connected to a hot airflow generating device. The bottom end of the airflow distribution box is fixedly connected with a second partition and a third partition that are spaced apart. The second partition and the third partition are inserted axially along the cylinder and separate the annular chamber into a first air cavity and a fourth air cavity. The air inlet is connected to the first air cavity, and the air outlet is connected to the fourth air cavity.

[0008] The air flow distribution box has a cavity, and the air flow distribution box is provided with a first partition in the cavity, and the first partition can separate the cavity into an independent second air cavity and a third air cavity. The air inlet and the air outlet are arranged on the side of the air flow distribution box away from the cylinder, and the air outlet and the air return port are arranged on the side of the air flow distribution box close to the cylinder. The air inlet is connected with the first air cavity through the second air cavity and the exhaust port, and the air outlet is connected with the fourth air cavity through the third air cavity and the air return port.

[0009] The air flow distribution box comprises a detachable cover plate and an outer shell, wherein the outer shell has a groove with one end open, the cover plate closes the groove to form the cavity, and the second partition plate and the third partition plate are fixedly connected to the cover plate.

[0010] The exhaust port is an arc-shaped slot structure; and / or the return air port is an arc-shaped slot structure.

[0011] A first sealing ring is embedded in the inner wall of the outer tube, a second sealing ring is embedded in the outer wall of the inner tube, the exhaust port has a first protrusion that can be inserted into the annular chamber, the return air port has a second protrusion that can be inserted into the annular chamber, the first protrusion abuts against the first and second sealing rings, and the second protrusion abuts against the first and second sealing rings.

[0012] The end of the cylinder away from the airflow dispersion device is open, the drying box includes a bottom plate capable of opening and closing the open end of the cylinder, and a lifting device capable of driving the bottom plate to approach or move away from the cylinder, and a parts rack is fixedly connected to one side of the bottom plate close to the cylinder.

[0013] The lifting device is one of a ball screw assembly, a pneumatic cylinder and a hydraulic cylinder.

[0014] The utility model proposes a post-spraying drying box for parts, which has the beneficial effect that: the device conveys the hot air flow to the annular chamber through the air flow dispersion device, so that part of the air holes connected to the annular chamber are used for air intake and part of the air holes are used for exhaust, and each air hole can switch back and forth between air intake and exhaust, and the air flow flows in multiple directions between the air holes, so that the parts that need to be dried after spraying inside the cylinder are dried more evenly, and the drying efficiency is faster due to the air flow in multiple directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the parts rack and base plate structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the cylinder structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the second baffle, the third baffle and the air flow distribution box of the utility model;

[0020] Figure 6 It is a schematic diagram of the shell structure of the utility model.

[0021] In the figure: lifting device 1, bottom plate 2, outer tube 3, air inlet 4, air flow distribution box 5, rotating motor 6, air outlet 7, parts rack 8, air hole 9, first air cavity 10, inner tube 11, exhaust port 12, second air cavity 13, first partition 14, third air cavity 15, air return port 16, fourth air cavity 17, second partition 18, third partition 19, cover plate 20, outer shell 21. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-6 A post-spraying drying box for parts includes a cylinder body, which includes an outer cylinder 3 and an inner cylinder 11. The inner cylinder 11 has evenly distributed air holes 9 on its circumference. An annular chamber connected to the air holes 9 is provided between the outer cylinder 3 and the inner cylinder 11. The annular chamber is connected to an air flow dispersion device. The air flow dispersion device can allow some of the air holes 9 to intake air and some of the air holes 9 to exhaust air at the same time, and each of the air holes 9 can switch back and forth between intake and exhaust.

[0024] The device conveys the hot air flow to the annular chamber through the air flow dispersion device, so that some of the air holes 9 connected to the annular chamber are used for air intake and some of the air holes 9 are used for exhaust, and each air hole 9 can switch back and forth between air intake and exhaust. The air flow flows in multiple directions between the air holes 9, so that the parts that need to be dried after spraying inside the cylinder are dried more evenly. The drying efficiency is faster due to the air flow flowing in multiple directions.

[0025] refer to Figure 2 , Figure 4The cylinder is located at the top of the annular chamber and is open. The airflow dispersion device includes an airflow distribution box 5 and a rotating motor 6 that drives the airflow distribution box 5 to rotate back and forth. The airflow distribution box 5 has an air outlet 7 and an air inlet 4 connected to a hot air flow generating device, wherein the function of the hot air flow generating device is to transport hot air to the air inlet 4. Existing devices can be used. For example, an air pump is used to blow air into a box with an electric heating wire. The box has an interface connected to the air inlet 4. The bottom end of the airflow distribution box 5 is fixedly connected with a second partition 18 and a third partition 19 that are spaced apart. The second partition 18 and the third partition 19 are inserted along the axial direction of the cylinder and separate the annular chamber into a first air cavity 10 and a fourth air cavity 17. The air inlet 4 is connected to the first air cavity 10, and the air outlet 7 is connected to the fourth air cavity 17.

[0026] A hot air flow is delivered to the air inlet 4 through a hot air flow generating device, the hot air flow enters the first air cavity 10, and then passes through the inner tube 11 and is discharged from the fourth air cavity 17 and the air outlet 7. During the movement of the air flow, the air flow distribution box 5 is driven to reciprocate by the rotating motor 6, so that the second baffle 18 and the third baffle 19 reciprocate in the annular cavity, so that the first air cavity 10 and the fourth air cavity 17 are continuously and dynamically transformed, so that some air holes 9 are used for air intake and some air holes 9 are used for exhaust, and each air hole 9 can reciprocate between air intake and exhaust.

[0027] refer to Figure 2 , Figure 5 , Figure 6 The air flow distribution box 5 has a cavity. The air flow distribution box 5 is provided with a first partition 14 in the cavity. The first partition 14 can separate the cavity into an independent second air cavity 13 and a third air cavity 15. An air inlet 4 and an air outlet 7 are provided on the side of the air flow distribution box 5 away from the cylinder. An exhaust port 12 and an air return port 16 are provided on the side of the air flow distribution box 5 close to the cylinder. The air inlet 4 is connected with the first air cavity 10 through the second air cavity 13 and the exhaust port 12. The air outlet 7 is connected with the fourth air cavity 17 through the third air cavity 15 and the air return port 16.

[0028] The hot air flow passes through the air inlet 4, the second air cavity 13, the exhaust port 12, the first air cavity 10, the air outlet hole 9, the inner tube 11, the air return hole 9, the fourth air cavity 17, the air return port 16, the third air cavity 15, and the air outlet 7 in sequence to complete the air flow.

[0029] In order to facilitate the preparation of the air flow distribution box 5, the air flow distribution box 5 includes a detachable cover plate 20 and a shell 21. The shell 21 has a groove with one end open. The cover plate 20 closes the groove to form a cavity. The second partition plate 18 and the third partition plate 19 are fixed to the cover plate 20.

[0030] The exhaust port 12 is an arc-shaped slot structure; and / or the return air port 16 is an arc-shaped slot structure. The arc-shaped slot structure can increase the area through which the airflow passes.

[0031] A first sealing ring is embedded in the inner wall of the outer tube 3, a second sealing ring is embedded in the outer wall of the inner tube 11, the exhaust port 12 has a first protrusion that can be inserted into the annular chamber, and the return air port 16 has a second protrusion that can be inserted into the annular chamber. The first protrusion abuts against the first and second sealing rings, and the second protrusion abuts against the first and second sealing rings. Through the cooperation between the protrusion and the sealing ring, the amount of airflow leaking out of the annular chamber is reduced.

[0032] One end of the cylinder away from the air flow dispersion device is open, and the drying box includes a bottom plate 2 that can open and close the cylinder opening, and a lifting device 1 that can drive the bottom plate 2 to move closer to or away from the cylinder. A part hanger 8 is fixedly connected to the side of the bottom plate 2 close to the cylinder, and the parts are hung on the part hanger 8. The bottom plate 2 is driven up and down by the lifting device 1 to facilitate the placement and removal of parts.

[0033] The lifting device 1 is one of a ball screw assembly, a pneumatic cylinder, and a hydraulic cylinder, as long as it can realize the up and down movement of the base plate 2.

[0034] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technical solution, concept, and design obtained by equivalent replacement or change based on the technical solution and utility model concept of the utility model by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model.

Claims

1. A drying oven for parts after spraying, characterized in that: The invention comprises a cylinder body, wherein the cylinder body comprises an outer cylinder (3) and an inner cylinder (11); the inner cylinder (11) is provided with evenly distributed air holes (9); an annular chamber connected to the air holes (9) is provided between the outer cylinder (3) and the inner cylinder (11); the annular chamber is connected to an air flow dispersion device; the air flow dispersion device can simultaneously allow some of the air holes (9) to inlet air and some of the air holes (9) to exhaust air, and each of the air holes (9) can switch back and forth between inlet and exhaust.

2. A post-spraying drying oven for parts according to claim 1, characterized in that: The cylinder is located at the top of the annular chamber and is open. The airflow dispersion device comprises an airflow distribution box (5) and a rotating motor (6) for driving the airflow distribution box (5) to rotate back and forth. The airflow distribution box (5) has an air outlet (7) and an air inlet (4) connected to a hot airflow generating device. A second partition plate (18) and a third partition plate (19) arranged at intervals are fixedly connected to the bottom end of the airflow distribution box (5). The second partition plate (18) and the third partition plate (19) are inserted into the axial direction of the cylinder and separate the annular chamber into a first air cavity (10) and a fourth air cavity (17). The air inlet (4) is connected to the first air cavity (10), and the air outlet (7) is connected to the fourth air cavity (17).

3. A post-spraying drying oven for parts according to claim 2, characterized in that: The air flow distribution box (5) has a cavity. The air flow distribution box (5) is provided with a first partition (14) in the cavity. The first partition (14) can separate the cavity into an independent second air cavity (13) and a third air cavity (15). The air inlet (4) and the air outlet (7) are provided on the side of the air flow distribution box (5) away from the cylinder. The air outlet (12) and the air return port (16) are provided on the side of the air flow distribution box (5) close to the cylinder. The air inlet (4) is connected to the first air cavity (10) through the second air cavity (13) and the air outlet (12). The air outlet (7) is connected to the fourth air cavity (17) through the third air cavity (15) and the air return port (16).

4. A post-spraying drying oven for parts according to claim 3, characterized in that: The air flow distribution box (5) comprises a detachably assembled cover plate (20) and an outer shell (21), wherein the outer shell (21) has a groove with one end open, and the cover plate (20) closes the groove to form the cavity, and the second partition plate (18) and the third partition plate (19) are fixedly connected to the cover plate (20).

5. A post-spraying drying oven for parts according to claim 3 or 4, characterized in that: The exhaust port (12) is an arc-shaped slot structure; and / or the air return port (16) is an arc-shaped slot structure.

6. A post-spraying drying oven for parts according to claim 5, characterized in that: A first sealing ring is embedded in the inner wall of the outer tube (3), a second sealing ring is embedded in the outer wall of the inner tube (11), the exhaust port (12) has a first protrusion that can be inserted into the annular chamber, and the return port (16) has a second protrusion that can be inserted into the annular chamber, the first protrusion abuts against the first sealing ring and the second sealing ring, and the second protrusion abuts against the first sealing ring and the second sealing ring.

7. A post-spraying drying oven for parts according to claim 1 or 2 or 3 or 4 or 6, characterized in that: One end of the cylinder away from the air flow dispersion device is open, and the drying box comprises a bottom plate (2) capable of opening and closing the open end of the cylinder, and a lifting device (1) capable of driving the bottom plate (2) to move closer to or away from the cylinder, and a parts hanger (8) is fixedly connected to a side of the bottom plate (2) close to the cylinder.

8. A post-spraying drying oven for parts according to claim 7, characterized in that: The lifting device (1) is one of a ball screw assembly, a pneumatic cylinder and a hydraulic cylinder.

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