Drying device for metal surface treatment

Abstract

The invention relates to the technical field of metal shell surface machining, and discloses a drying device for metal surface treatment, which comprises a workbench, a fixing device and a drying device, and the fixing device and the drying device are arranged on the workbench; the drying device is used for drying the machined part on the fixing device; the fixing device comprises a fixing shaft, a first fixing piece, a second fixing piece, a connecting rod, a push plate and a propelling device; two movable protrusions are arranged on the push plate and abut against the crossed positions, facing the inner side of the fixing shaft, of the first fixing piece and the second fixing piece correspondingly, and the first fixing piece and the second fixing piece penetrate through the through grooves to be fixed into the machined piece. Through the arrangement of the fixing device, the mode of manually clamping a machined part is replaced, the distance and angle between the machined part and a heat source are kept consistent, the whole drying process is stable, and the coating quality is not affected; and through cooperation between the first ventilation plate and the second ventilation plate, air outlet is uniform, and the reliability and the service life of the product are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of metal shell surface processing, and in particular to a drying device for metal surface processing. Background Art

[0002] In the metal processing industry, surface coating and spraying of metal shells is an important process to improve their corrosion resistance and aesthetics. During the spraying process, the paint will evenly cover the surface of the metal shell to form a protective film. In order to ensure the quality and performance of the coating, the drying process after spraying is crucial. Commonly used drying methods include hot air circulation drying and infrared drying, which evaporate the solvent in the coating by heating and promote the curing and adhesion of the coating.

[0003] However, in actual operation, since metal shells usually need to be sprayed and dried manually, this may cause uneven drying. For example, the handheld operation will cause the distance and angle between the metal shell and the heat source to be inconsistent, resulting in the coating drying faster in some areas, while other areas dry slowly due to insufficient heat. This uneven drying phenomenon will not only affect the appearance quality of the coating, but also cause defects such as color difference and bubbles, and may also reduce the adhesion and durability of the coating. Therefore, solving this problem is crucial to improving the coating quality and overall performance of the metal shell. Summary of the invention

[0004] The present invention aims at the shortcomings in the prior art and provides a drying device for metal surface treatment.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions.

[0006] A drying device for metal surface treatment comprises a workbench, a fixing device and a drying device, wherein the fixing device and the drying device are arranged on the workbench; the drying device is used to dry the workpiece on the fixing device; the fixing device comprises a fixed shaft, a first fixing member, a second fixing member, a connecting rod, a push plate and a propulsion device, a cavity is provided in the fixed shaft, two through grooves are provided on both sides of the cavity, the first fixing member and the second fixing member are symmetrically arranged in the cavity, the first fixing member and the second fixing member both comprise two cross-arranged support rods, the connecting rod penetrates and connects the two support rods and is fixed in the cavity; two movable protrusions are provided on the push plate, the two movable protrusions respectively abut against the intersection of the first fixing member and the second fixing member facing the inner side of the fixed shaft, the propulsion device is connected to one end of the push plate and moves along the fixed shaft direction, the push plate drives the movable protrusion to move, so that the first fixing member and the second fixing member pass through the through groove and are fixed in the workpiece.

[0007] Preferably, the propulsion device is a pneumatic cylinder, a movable hole is provided on the push plate, and the output end of the pneumatic cylinder is connected to the movable hole.

[0008] Preferably, the drying device comprises an oven, a first ventilation plate and a second ventilation plate, the first ventilation plate and the second ventilation plate are arranged in the oven, and the two first ventilation plates are arranged on the upper and lower sides of the second ventilation plate.

[0009] Preferably, an air inlet channel is provided at the upper end of the oven, an air inlet port is provided at the upper end of the air inlet channel, the lower end of the air inlet channel is connected to the oven, and the lower end of the oven is open.

[0010] Preferably, the first ventilation plate is provided with a first ventilation hole, the second ventilation plate is provided with a second ventilation hole, and the first ventilation hole and the second ventilation hole are staggered in a vertical direction.

[0011] Preferably, a support plate is provided on the workbench, the rotating shaft is connected through the support plate, and a cross bar is connected between the drying device and the support plate.

[0012] Preferably, a driving motor is provided on one side of the support plate, a rotating hole is provided on one side of the fixed shaft, and an output end of the driving motor is connected to the rotating hole to drive the fixed shaft to rotate.

[0013] Preferably, a ventilation groove is provided on the workbench, and the ventilation groove is used to receive the drying airflow.

[0014] Preferably, an exhaust grille is provided on the workbench.

[0015] Preferably, a filter is provided in the ventilation groove for coarsely filtering the paint mist.

[0016] The present invention has significant technical effects due to the adoption of the above technical scheme: the present invention fixes the first fixing part and the second fixing part to the inside of the workpiece by setting a fixing device, replacing the method of manually clamping the workpiece, so that the distance and angle between the workpiece and the heat source are kept consistent, and the entire drying process is stable and does not affect the coating quality; the air outlet is made uniform by the cooperation between the first ventilation plate and the second ventilation plate, and the entire process not only shortens the drying time and improves production efficiency, but also improves the coating quality and ensures the reliability and service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a drying device for metal surface treatment according to the present invention;

[0018] Figure 2 It is a schematic diagram of the internal cross-sectional structure of a fixing device in a drying device for metal surface treatment according to the present invention;

[0019] Figure 3It is a schematic diagram of the internal cross-sectional structure of a drying device in a drying device for metal surface treatment of the present invention;

[0020] Figure 4 It is a structural schematic diagram of a first ventilation plate in a drying device for metal surface treatment according to the present invention;

[0021] Figure 5 It is a structural schematic diagram of a second ventilation plate in a drying device for metal surface treatment according to the present invention.

[0022] In the figure: 1-workbench, 11-support plate, 12-cross bar, 13-ventilation groove, 14-exhaust grille, 15-filter, 21-fixed shaft, 22-connecting rod, 23-push plate, 24-cavity, 25-through groove, 26-support rod, 27-movable protrusion, 28-movable hole, 29-pneumatic cylinder, 31-oven, 32-first ventilation plate, 321-first ventilation hole, 33-second ventilation plate, 332-second ventilation hole, 34-inlet channel, 341-air inlet, 4-driving motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] like Figures 1 to 5As shown, it shows a drying device for metal surface treatment provided by an embodiment of the present application, including a workbench 1, a fixing device and a drying device, the fixing device and the drying device are arranged on the workbench 1; the drying device is used to dry the workpiece on the fixing device; the fixing device includes a fixed shaft 21, a first fixing member, a second fixing member, a connecting rod 22, a push plate 23 and a propulsion device, a cavity 24 is provided in the fixed shaft 21, two through grooves 25 are provided on both sides of the cavity 24, the first fixing member and the second fixing member are symmetrically arranged in the cavity 24, the first fixing member and the second fixing member each include two cross-arranged support rods 26, the connecting rod 22 penetrates and connects the two support rods 26 and is fixed in the cavity 24; two movable protrusions 27 are provided on the push plate 23, the two movable protrusions 27 respectively abut against the intersection of the first fixing member and the second fixing member facing the inner side of the fixed shaft 21, the propulsion device is connected to one end of the push plate 23 and moves along the direction of the fixed shaft 21, the push plate 23 drives the movable protrusion 27 to move, so that the first fixing member and the second fixing member pass through the through groove 25 and are fixed in the workpiece. In this embodiment, the first fixing member and the second fixing member can be used to clamp workpieces with the same opening length at the upper and lower ends, such as cylindrical, rectangular and other shaped workpieces; the two support rods 26 are movably connected to the connecting rod 22 and can rotate in coordination; in order to better push and cooperate with the first fixing member and the second fixing member, the movable protrusion 27 is cylindrical and is set at the same angle as the first fixing member and the second fixing member, thereby ensuring that after pushing the first fixing member and the second fixing member, the support rods 26 open at the same angle.

[0025] In this embodiment, the propulsion device is a pneumatic cylinder 29, and a movable hole 28 is provided on the push plate 23. The output end of the pneumatic cylinder 29 is connected to the movable hole 28. The inflow and outflow of gas can be adjusted by the solenoid valve or manual valve connected to the pneumatic cylinder 29, thereby controlling the movement stroke of the piston until the workpiece is fixed.

[0026] The drying device includes an oven 31, a first ventilation plate 32, and a second ventilation plate 33. The first ventilation plate 32 and the second ventilation plate 33 are arranged in the oven 31, and the two first ventilation plates 32 are arranged on the upper and lower sides of the second ventilation plate 33. In this embodiment, the first ventilation plate 32 and the second ventilation plate 33 have the effect of decelerating and evenly diverting the hot air entering the oven 31, so that the drying air is evenly discharged.

[0027] The upper end of the oven 31 is provided with an air inlet channel 34, and the upper end of the air inlet channel 34 is provided with an air inlet port 341, and the air inlet port 341 is used to connect to an external hot air blower. The lower end of the air inlet channel 34 is connected to the oven 31, and the lower end of the oven 31 is open. In this embodiment, the air inlet channel 34 is narrow at the top and wide at the bottom, which can increase the airflow area.

[0028] The first ventilation plate 32 is provided with a first ventilation hole 321, and the second ventilation plate 33 is provided with a second ventilation hole 332. The first ventilation hole 321 and the second ventilation hole 332 are staggered in the vertical direction. By staggering the first ventilation hole 321 and the second ventilation hole 332, the air outlet speed can be further reduced, the air outlet is more uniform, and the significant difference in temperature and humidity in different areas during the drying process is reduced.

[0029] A support plate 11 is provided on the workbench 1, a rotating shaft is connected through the support plate 11, a cross bar 12 is connected between the drying device and the support plate 11, a driving motor 4 is provided on one side of the support plate 11, a rotating hole is provided on one side of the fixed shaft 21, and the output end of the driving motor 4 is connected to the rotating hole to drive the fixed shaft 21 to rotate. In this embodiment, the fixed shaft 21 is rotated by the operation of the driving motor 4, and the drying can be carried out in accordance with the shape of the workpiece, which has strong flexibility.

[0030] The workbench 1 is provided with a ventilation groove 13 for receiving the drying airflow, and the workbench 1 is provided with an exhaust grille 14. A filter 15 is provided in the ventilation groove 13 for roughly filtering the paint mist. In this embodiment, the gas blown out during drying enters the ventilation groove 13, reducing the impact of gas backflow, and the excess gas flows out through the exhaust grille 14. At the same time, the filter 15 filters the paint mist in the airflow, reducing the impact on the quality of the workpiece that has been painted.

[0031] When in use, the workpiece is inserted along the fixed axis 21, and the pneumatic cylinder 29 is turned on to move the push plate 23 along the fixed axis 21, so that the cross-open support rods 26 in the first fixing member and the second fixing member are gradually pressed against the inside of the workpiece, thereby completing the fixing work; the hot air blower is turned on to allow hot air to enter the drying device, and the evenly delivered hot air completely dries the surface of the workpiece, and then the drive motor 4 is turned on to rotate the direction of the workpiece until all the drying work is completed.

[0032] By setting up the fixing device, the first fixing part and the second fixing part fix the inside of the workpiece, replacing the manual clamping method of the workpiece, so that the distance and angle between the workpiece and the heat source are kept consistent, and the whole drying process is stable and does not affect the coating quality; the coordination between the first ventilation plate 32 and the second ventilation plate 33 makes the air outlet uniform, and the whole process not only shortens the drying time and improves the production efficiency, but also improves the coating quality and ensures the reliability and service life of the product.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment that includes a series of elements are inherent to the elements. In the absence of more restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or equipment that includes the elements. In addition, the above-mentioned technical solution provided in the embodiment of the present application is consistent with the corresponding technical solution in the prior art in principle, and the part is not described in detail, so as not to repeat too much.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drying device for metal surface treatment, characterized in that: The invention comprises a workbench (1), a fixing device and a drying device, wherein the fixing device and the drying device are arranged on the workbench (1); the drying device is used to dry the workpiece on the fixing device; the fixing device comprises a fixing shaft (21), a first fixing member, a second fixing member, a connecting rod (22), a push plate (23) and a propulsion device; a cavity (24) is arranged in the fixing shaft (21), two through grooves (25) are arranged on both sides of the cavity (24), the first fixing member and the second fixing member are symmetrically arranged in the cavity (24), and the first fixing member and the second fixing member each comprise two The supporting rods (26) are cross-arranged, and the connecting rod (22) penetrates and connects the two supporting rods (26) and is fixed in the cavity (24); the push plate (23) is provided with two movable protrusions (27), and the two movable protrusions (27) respectively abut against the intersection of the first fixing member and the second fixing member facing the inner side of the fixed axis (21); the propulsion device is connected to one end of the push plate (23) and moves along the direction of the fixed axis (21), and the push plate (23) drives the movable protrusion (27) to move, so that the first fixing member and the second fixing member pass through the through groove (25) and are fixed in the workpiece.

2. A drying device for metal surface treatment according to claim 1, characterized in that: The propulsion device is a pneumatic cylinder (29), a moving hole (28) is provided on the push plate (23), and the output end of the pneumatic cylinder (29) is connected to the moving hole (28).

3. A drying device for metal surface treatment according to claim 1, characterized in that: The drying device comprises an oven (31), a first ventilation plate (32) and a second ventilation plate (33); the first ventilation plate (32) and the second ventilation plate (33) are arranged in the oven (31); and the two first ventilation plates (32) are arranged on the upper and lower sides of the second ventilation plate (33).

4. A drying device for metal surface treatment according to claim 3, characterized in that: An air inlet channel (34) is provided at the upper end of the oven (31), an air inlet port (341) is provided at the upper end of the air inlet channel (34), the lower end of the air inlet channel (34) is communicated with the oven (31), and the lower end of the oven (31) is open.

5. The drying device for metal surface treatment according to claim 3, characterized in that: The first ventilation plate (32) is provided with a first ventilation hole (321), and the second ventilation plate (33) is provided with a second ventilation hole (332). The first ventilation hole (321) and the second ventilation hole (332) are arranged alternately in a vertical direction.

6. A drying device for metal surface treatment according to claim 1, characterized in that: A support plate (11) is provided on the workbench (1), a rotating shaft is connected through the support plate (11), and a cross bar (12) is connected between the drying device and the support plate (11).

7. A drying device for metal surface treatment according to claim 1, characterized in that: A driving motor is provided on one side of the support plate (11), a rotating hole is provided on one side of the fixed shaft (21), and an output end of the driving motor is connected to the rotating hole to drive the fixed shaft (21) to rotate.

8. The drying device for metal surface treatment according to claim 1, characterized in that: A ventilation groove (13) is provided on the workbench (1), and the ventilation groove (13) is used to receive the drying airflow.

9. The drying device for metal surface treatment according to claim 1, characterized in that: An exhaust grille (14) is provided on the workbench (1).

10. A drying device for metal surface treatment according to claim 8, characterized in that: A filter screen (15) is arranged in the ventilation groove (13) for roughly filtering the paint mist.

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