Powder curing furnace of spraying production line

Abstract

The utility model relates to the technical field of curing ovens, in particular to a powder curing oven of a spraying production line, which comprises a machine body, the machine body is composed of a double-layer shell and forms a cavity, a centering mechanism is arranged in the machine body and can support a workpiece to enable the workpiece to be suspended in the machine body, and a heating mechanism is arranged in the machine body. And the two heating mechanisms are symmetrically arranged up and down, so that the temperature in the machine body can be increased, and powder on the surface of the workpiece can be solidified. According to the utility model, the cross-shaped plate slowly reciprocates up and down, so that a workpiece can be prevented from being in contact with the centering mechanism and the cross-shaped plate for a long time, the bottom surface of the workpiece can be better and faster cured, the curing time of the workpiece can be shortened, the curing efficiency of the workpiece can be improved, and the workpiece can be cured by injecting water into the cavity and absorbing heat. And when a new workpiece is cured, through cooperation of the two heating mechanisms, the interior of the machine body can rapidly reach the set temperature.

Description

Technical Field

[0001] This utility model relates to the field of curing oven technology, specifically a powder curing oven for a spray coating production line. Background Technology

[0002] Powder-coated profiles have excellent characteristics such as low production energy consumption, rich color variety, recyclable powder, no solvent pollution, and good decorative and corrosion resistance. They occupy a pivotal position in metal product processing. The powder curing oven is a key piece of equipment for curing powder coatings after spraying. Its function is to melt, level and cross-link the powder coating on the workpiece surface by heating, forming a dense, wear-resistant and corrosion-resistant coating, thereby improving the overall quality of the workpiece.

[0003] Chinese Patent Publication No. CN222710027U discloses a powder curing oven for an aviation parts spraying production line. A stepper motor is installed, and when started, its output drives a worm gear via a gearbox. This worm gear, in conjunction with a worm wheel, drives a rotating rod, causing the support plate to rotate. The rotating rod then drives a first bevel gear, which in turn drives a second bevel gear, causing a transmission rod to rotate a fan blade. This allows gas to enter the air intake box and exit through multiple exhaust pipes, creating turbulent airflow within the machine body. This results in more uniform heating of the aviation parts and optimizes the curing effect of the device.

[0004] Although the above-mentioned patent can achieve the rotation of the workpiece, making the workpiece heat more evenly, after the workpiece is placed on the support plate, the workpiece will come into contact with the support plate and the support plate will absorb some of the heat, which will prolong the curing time of the powder on the surface of the workpiece. Moreover, when the cured workpiece is removed, a large amount of heat will be lost from the machine body, resulting in an excessively long time to reheat to the predetermined temperature. Utility Model Content

[0005] The purpose of this invention is to provide a powder curing oven for a spray coating production line to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A powder curing oven for a spray coating production line includes:

[0008] The body is composed of a double-layered outer shell that forms a cavity;

[0009] The centering mechanism, located inside the machine body, supports the workpiece, allowing it to suspend within the machine body.

[0010] The heating mechanism is located inside the machine body. There are two heating mechanisms arranged symmetrically above and below each other, which can raise the temperature inside the machine body and solidify the powder on the surface of the workpiece.

[0011] The lifting mechanism, located within the centering mechanism, enables the workpiece to move and cyclically move between contact and disengagement with the centering mechanism. The lifting mechanism includes a cross plate that can move up and down within the machine body.

[0012] Furthermore, the top surface of the cross plate has two symmetrical ends fixedly connected to steel ropes, the top ends of the two steel ropes slide through the top surface of the machine body and are fixedly connected to a fixed plate, the top surface of the machine body is fixedly connected to a motor, and the output end of the motor is fixedly connected to a reciprocating lead screw that is screwed through the fixed plate.

[0013] Furthermore, the inner top surface of the machine body has two symmetrical pulleys fixedly connected to both ends by a connecting frame. The pulleys are in close contact with the steel rope at the corresponding positions. The top surface of the machine body is fixedly connected with an L-shaped plate that is rotatably connected to the reciprocating lead screw.

[0014] Furthermore, the top of the cavity is fixedly connected to two symmetrical partitions, and one side of the inner bottom surface of the body is fixedly connected to a limiting rod that slides through the cross plate.

[0015] Furthermore, the centering mechanism includes two symmetrical L-shaped support plates that move inside the machine body. The top surface of the L-shaped support plates is fixedly connected to two symmetrical centering plates. A bidirectional lead screw that is rotatably connected to the two L-shaped support plates is rotatably connected between the two opposite sides inside the machine body.

[0016] Furthermore, a stabilizing rod is fixedly connected between two opposite sides of the interior of the machine body, which slides through two L-shaped support plates. The top surface of the L-shaped support plate has a notch for moving the cross plate. A rotating block is fixedly connected to the middle of the outer wall of the bidirectional lead screw.

[0017] Furthermore, a fixing plate is fixedly connected to the inner top of the machine body, the heating mechanism includes a heating plate, a housing is provided on the outer side of the heating plate, a fan is embedded and fixed on one side of the two housings facing each other, a heating tube is embedded and fixed inside the heating plate, the upper housing and heating plate are fixedly connected to the fixing plate, and the lower heating plate and housing are fixedly connected to the inner bottom surface of the machine body.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By slowly moving the cross plate up and down, the workpiece can avoid prolonged contact with the centering mechanism and the cross plate, thus allowing the bottom surface of the workpiece to cure better and faster. Therefore, the curing time of the workpiece can be reduced and the curing efficiency can be improved. By injecting water into the cavity and absorbing heat, when curing a new workpiece, the cooperation of the two heating mechanisms can quickly bring the internal temperature of the machine to the set temperature.

[0020] 2. By rotating the bidirectional lead screw, the two L-shaped pallets can be brought closer to each other, so that the centering plate on the top surface of the L-shaped pallet centers the workpiece, thereby preventing the center of the workpiece from leaving the cross plate, and ensuring that the workpiece can remain stable on the cross plate during the up-and-down reciprocating movement of the cross plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the body of this utility model;

[0023] Figure 3 This is a schematic diagram of the centering mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the heating mechanism structure in this utility model;

[0025] Figure 5 This is a schematic diagram of the lifting mechanism in this utility model.

[0026] In the diagram: 1. Body; 11. Cavity; 12. Pulley; 13. L-shaped plate; 14. Partition; 15. Fixing plate; 2. Centering mechanism; 21. L-shaped support plate; 22. Centering plate; 23. Notch; 24. Double-acting lead screw; 25. Stabilizing bar; 26. Rotating block; 3. Heating mechanism; 31. Heating plate; 32. Shell; 33. Fan; 4. Lifting mechanism; 41. Cross plate; 42. Steel rope; 43. Fixing disc; 44. Motor; 45. Reciprocating lead screw; 46. Limiting rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5In this embodiment of the present invention, a powder curing oven for a spraying production line includes a body 1, which is composed of a double-layer shell forming a cavity 11. A centering mechanism 2 is provided inside the body 1 to support the workpiece, so that the workpiece is suspended inside the body 1. Two symmetrical heating mechanisms 3 are provided inside the body 1 to raise the temperature inside the body 1 and cure the powder on the surface of the workpiece. A lifting mechanism 4 is provided inside the centering mechanism 2 to move the workpiece and make the workpiece move back and forth between contact and separation with the centering mechanism 2. The lifting mechanism 4 includes a cross plate 41 that can move up and down inside the body 1.

[0029] Specifically, firstly, water inlets and outlets are opened on the top and bottom surfaces of the machine body 1 and plugged. Water is injected into the cavity 11 through the water inlet. The workpiece to be cured is placed on the centering mechanism 2 and centered. Then, the door is closed. By energizing the two heating mechanisms 3, the released heat cures the workpiece. During the curing process, the cross plate 41 moves slowly up and down. The upward movement of the cross plate 41 detaches the workpiece from the centering mechanism 2, causing it to move upward. Then, the downward movement of the cross plate 41 causes the workpiece to move downward, landing it back on the centering mechanism 2. This reciprocating operation avoids prolonged contact between the workpiece and the centering mechanism. Mechanism 2 contacts the cross plate 41, which allows the bottom surface of the workpiece to cure better and faster, thus reducing the curing time and improving the curing efficiency. Moreover, when the two heating mechanisms 3 are working, they can raise the water temperature and store the heat. Therefore, when the door is opened to take out the workpiece and a new workpiece is put in, the heat stored in the water will be released and the temperature inside the machine body 1 will rise again. Then, through the operation of the two heating mechanisms 3 again, the temperature inside the machine body 1 can be quickly reached the set temperature (although the water will absorb heat in the early stage, prolonging the curing time of the first workpiece, it will shorten the curing time of the subsequent workpieces).

[0030] Example 1

[0031] like Figure 1 and Figure 5 As shown, in this embodiment, steel ropes 42 are fixedly connected to both symmetrical ends of the top surface of the cross plate 41. The top ends of the two steel ropes 42 slide through the top surface of the machine body 1 and are fixedly connected to a fixed plate 43. A motor 44 is fixedly connected to the top surface of the machine body 1. A reciprocating screw 45 that is screwed through the fixed plate 43 is fixedly connected to the output end of the motor 44. Two symmetrical pulleys 12 are fixedly connected to both ends of the inner top surface of the machine body 1 through a connecting frame. The pulleys 12 are in close contact with the steel ropes 42 at the corresponding positions. An L-shaped plate 13 that is rotatably connected to the reciprocating screw 45 is fixedly connected to the top surface of the machine body 1. Two symmetrical partitions 14 are fixedly connected to the top of the cavity 11. A limiting rod 46 that slides through the cross plate 41 is fixedly connected to one side of the inner bottom surface of the machine body 1.

[0032] In this embodiment, the reciprocating screw 45 driven by the motor 44 can drive the fixed plate 43 to move up and down reciprocally. The fixed plate 43, which moves up and down reciprocally, can drive the cross plate 41 to move up and down reciprocally through two steel ropes 42, thereby enabling the workpiece to move up and down reciprocally. Therefore, it can prevent the bottom surface of the workpiece from contacting the centering mechanism 2 and the cross plate 41 for a long time. The limiting rod 46 can prevent the cross plate 41 from swaying during the up and down movement. The top of the cavity 11 can be separated by two partitions 14 to prevent water in the cavity 11 from flowing into the workpiece during the movement of the steel ropes 42.

[0033] Example 2

[0034] like Figure 3 As shown, in this embodiment, the centering mechanism 2 includes two symmetrical L-shaped support plates 21 that move inside the body 1. Two symmetrical centering plates 22 are fixedly connected to the top surface of the L-shaped support plates 21. A bidirectional lead screw 24 that is rotatably connected to the two L-shaped support plates 21 is rotatably connected between the two opposite sides inside the body 1. A stabilizing rod 25 that slides through the two L-shaped support plates 21 is fixedly connected between the two opposite sides inside the body 1. A notch 23 for moving the cross plate 41 is opened on the top surface of the L-shaped support plate 21. A rotating block 26 is fixedly connected to the middle of the outer wall of the bidirectional lead screw 24.

[0035] In this embodiment, the workpiece is placed on two L-shaped support plates 21. Then, by rotating the bidirectional lead screw 24, the two L-shaped support plates 21 can be brought closer to each other, so that the centering plate 22 on the top surface of the L-shaped support plate 21 centers the workpiece. This prevents the center of the workpiece from leaving the cross plate 41, and ensures that the workpiece remains stable on the cross plate 41 during its up-and-down reciprocating movement. By making the cross plate 41, L-shaped support plates 21, and centering plate 22 into a mesh structure, the contact area between the workpiece and the cross plate 41 and L-shaped support plates 21 can be reduced, allowing the workpiece to solidify better.

[0036] Example 3

[0037] like Figure 4 As shown, in this embodiment, a fixing plate 15 is fixedly connected to the inner top of the body 1, the heating mechanism 3 includes a heating plate 31, a housing 32 is provided on the outer side of the heating plate 31, a fan 33 is embedded and fixed on one side of the two housings 32 facing each other, a heating tube is embedded and fixed inside the heating plate 31, the housing 32 and the heating plate 31 located above are fixedly connected to the fixing plate 15, and the heating plate 31 and the housing 32 located below are fixedly connected to the inner bottom surface of the body 1.

[0038] In this embodiment, the heat released by the heating tube can be concentrated through the housing 32, and then the heat concentrated in the housing 32 can be blown out by the fan 33, so that the heat can quickly fill the internal space of the body 1.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A powder curing oven for a spray coating production line, characterized in that, include: The body (1) is composed of a double-layered shell and forms a cavity (11); The centering mechanism (2) is set inside the machine body (1) so that the workpiece is suspended inside the machine body (1); Heating mechanism (3) is provided inside the body (1), and there are two heating mechanisms (3) arranged symmetrically above and below each other; The lifting mechanism (4) is set inside the centering mechanism (2) to make the workpiece move back and forth between contact and disengagement with the centering mechanism (2). The lifting mechanism (4) includes a cross plate (41) that can move up and down inside the machine body (1).

2. The powder curing oven of the spray coating production line according to claim 1, characterized in that, The top surface of the cross plate (41) is fixedly connected to two symmetrical ends of steel ropes (42). The top ends of the two steel ropes (42) slide through the top surface of the machine body (1) and are fixedly connected to a fixed plate (43). The top surface of the machine body (1) is fixedly connected to a motor (44). The output end of the motor (44) is fixedly connected to a reciprocating screw (45) that is screwed through the fixed plate (43).

3. The powder curing oven of the spray coating production line according to claim 2, characterized in that, The inner top surface of the machine body (1) has two symmetrical pulleys (12) fixedly connected at both ends by a connecting frame. The pulleys (12) are in close contact with the steel rope (42) at the corresponding position. The top surface of the machine body (1) is fixedly connected with an L-shaped plate (13) that is rotatably connected to the reciprocating screw (45).

4. The powder curing oven of the spray coating production line according to claim 3, characterized in that, The top of the cavity (11) is fixedly connected to two symmetrical partitions (14), and a limiting rod (46) that slides through the cross plate (41) is fixedly connected to one side of the inner bottom surface of the body (1).

5. The powder curing oven of the spray coating production line according to claim 4, characterized in that, The centering mechanism (2) includes two symmetrical L-shaped support plates (21) that move inside the body (1). The top surface of the L-shaped support plate (21) is fixedly connected to two symmetrical centering plates (22). A bidirectional lead screw (24) that is rotatably connected between the two opposite sides inside the body (1) and screws through and engages with the two L-shaped support plates (21) is provided.

6. The powder curing oven of the spray coating production line according to claim 5, characterized in that, The inner sides of the body (1) are fixedly connected to a stabilizing rod (25) that slides through two L-shaped support plates (21). The top surface of the L-shaped support plate (21) is provided with a notch (23) for moving the cross plate (41). A rotating block (26) is fixedly connected to the middle of the outer wall of the bidirectional lead screw (24).

7. The powder curing oven of the spray coating production line according to claim 6, characterized in that, A fixing plate (15) is fixedly connected to the inner top of the body (1). The heating mechanism (3) includes a heating plate (31). A housing (32) is provided on the outer side of the heating plate (31). A fan (33) is embedded and fixed on one side of the two housings (32) facing each other. A heating tube is embedded and fixed inside the heating plate (31). The upper housing (32) and heating plate (31) are fixedly connected to the fixing plate (15). The lower heating plate (31) and housing (32) are fixedly connected to the inner bottom surface of the body (1).

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