Curing oven for electrostatic coating machine

Abstract

The curing oven for the electrostatic coating machine comprises an oven housing, openings are formed in the front end and the rear end of the oven housing, lifting air cylinders are symmetrically arranged on the two sides of the openings in the front end and the rear end of the oven housing, oven doors are arranged at the openings in the front end and the rear end of the oven housing, and the oven doors can move up and down. The two sides of the oven door are connected with the output ends of the lifting air cylinders. Waste gas collecting covers are arranged on the front end face and the rear end face of the oven housing along the opening and used for collecting gas overflowing from the interior of the oven housing. An air inlet is formed in one side of the oven housing, a heating box is installed at the air inlet and comprises a box body, a heater and a fan, the heater is installed on the inner side of the box body, the fan is installed on the side face of the heater, the inner side of the box body is communicated with the air inlet of the oven housing, and the exhaust end of the fan is inserted into the box body. After the gas cylinder enters the oven housing, the oven door is driven by the lifting cylinder to be closed.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, and particularly relates to a curing oven for an electrostatic coating machine. Background Art

[0002] During the processing of aluminum alloy high-pressure composite gas cylinders, after the neck machining and screwing rod of the cylinder mouth and before the winding process, it is necessary to spray epoxy resin powder on the outer surface of the inner cylinder of the gas cylinder. The spraying method of the epoxy resin powder is electrostatic spraying or electrostatic coating, and an electrostatic coating machine is required. The drying module of the coating machine is an important part of the coating machine, and its main function is to quickly and evenly dry the coated material to ensure the quality and performance of the coating. And according to different processed workpieces, the structure of the coating machine often varies greatly, and the coating processing of different workpieces requires the use of corresponding coating machines.

[0003] For example, the patent with the patent number CN202320892429.0 discloses a drying device for a coating machine. The drying device of the above coating machine includes a frame, a conveyor belt arranged on the frame, and a drying outer cover arranged on the frame. A drying channel is opened on the drying outer cover, the conveyor belt passes through the drying channel, a heating and drying component is arranged in the drying channel, an air pump is arranged on the drying outer cover, the air pump is communicated with a blowing head, the blowing head passes through the drying outer cover and faces the conveyor belt, and the blowing head and the heating and drying component are arranged at intervals along the transportation direction of the conveyor belt.

[0004] The drying device of the coating machine provided by the above patent is mainly used for drying metal coils. There are structural differences between the coating machine used in the process of coating the gas cylinder and the coating machine used for the metal coil. Although there are structural differences between the two coating machines, both coating machines used in production have a drying mechanism. However, the existing drying mechanism will have a large amount of heat overflow, resulting in some heat waste. Since the gas cylinder is cylindrical, its side needs to be coated during the coating process. Therefore, when drying, the entire outer surface of the gas cylinder needs to be dried. In the existing drying device, the hot air blows from top to bottom. After the hot air blows to the upper surface of the gas cylinder, it will disperse around, resulting in a large amount of heat waste. Moreover, this drying method can only quickly dry the upper surface of the gas cylinder, and the drying efficiency of the lower surface is relatively poor. Therefore, there is a need for a drying device for a coating machine that can prevent the hot air from escaping. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a curing oven for an electrostatic coating machine, aiming to improve the problem that the drying device of the existing coating machine will cause a large amount of heat to escape, resulting in heat waste, and at the same time, it is not conducive to the efficient drying of the gas cylinder.

[0006] The present utility model is realized as follows:

[0007] A curing oven for an electrostatic coating applicator, comprising an oven housing. Openings are provided at the front and rear ends of the oven housing. Lifting cylinders are symmetrically provided on both sides of the openings at the front and rear ends of the oven housing. An oven door is provided at the openings at the front and rear ends of the oven housing. The oven door can move up and down, and both sides of the oven door are connected to the output ends of the lifting cylinders. Exhaust gas collection hoods are provided along the upper sides of the openings at the front and rear end faces of the oven housing for collecting the gas overflowing inside the oven housing. An air inlet is provided on one side of the oven housing, and a heating box is installed at the air inlet. The heating box includes a box body, a heater, and a blower. The heater is installed inside the box body, and the blower is installed on the side of the heater. The inside of the box body communicates with the air inlet of the oven housing, and the exhaust end of the blower is inserted into the inside of the box body.

[0008] Preferably, an air distribution plate is provided at a position near the top inside the oven housing, and a plurality of ventilation holes are evenly provided on the air distribution plate.

[0009] Preferably, guide rods are provided on both sides of the openings at the front and rear ends of the oven housing, and guide grooves are longitudinally provided on the opposite sides of the two guide rods for guiding the oven door.

[0010] Preferably, the top of the box body is open. Fixed edges are provided at one ends of the two side faces of the box body close to the oven housing, and a plurality of fixing holes are provided on the fixed edges from top to bottom. An air outlet is provided on the side of the box body facing the oven housing, and a blowing port is provided at a position on the other side aligned with the air outlet.

[0011] Preferably, insertion plates are evenly provided at the bottom of the heater. The insertion plates are used for plugging into the inside of the open top of the box body, and a plurality of heating wires are evenly provided on the bottom surface of the insertion plates. A first wire is provided on the side of the heater, and a first plug is provided at the end of the first wire.

[0012] Preferably, a wind wheel is provided inside the blower, and a motor is installed on the side of the blower. The wind wheel is connected to the output end of the motor. A second wire is provided on the side of the motor, and a second plug is provided at the end of the second wire.

[0013] Preferably, an installation plate is provided at one end of the blower that fits the box body. A plurality of installation holes are provided on the installation plate, and the installation holes cooperate with bolts to fix the blower on the box body.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The utility model is equipped with oven doors on both sides of the oven housing. After the gas cylinder enters the interior of the oven housing, the oven doors are driven by the lifting cylinder to close. Then, the heat generated by the heating box is blown into the interior of the oven housing by the fan, and the hot air stays inside the oven housing, thereby achieving the purpose of quickly drying the gas cylinders inside the oven. At the same time, two waste gas collection hoods are provided at the top of the front and rear ends of the oven housing to discharge the excess gas inside the oven through the waste gas collection hoods when it escapes.

[0016] 2. The heater inside the heating box of the utility model can be flexibly disassembled according to the usage requirements, which is convenient for quick replacement when damaged and also for disassembly and cleaning of the heater. Description of the Drawings

[0017] Figure 1 is a schematic structural view of the whole of the utility model from the front-end oblique downward perspective;

[0018] Figure 2 is a schematic structural view of the cooperation of the oven housing, lifting cylinder, oven door and waste gas collection hood of the utility model from the front-end oblique upward perspective;

[0019] Figure 3 is a schematic structural view of the heating box of the utility model;

[0020] Figure 4 is a schematic structural view of the box body of the utility model;

[0021] Figure 5 is a schematic structural view of the heater of the utility model;

[0022] Figure 6 is a schematic structural view of the fan of the utility model.

[0023] In the figure: 1. Oven housing; 11. Air inlet; 12. Air distribution plate; 13. Ventilation holes; 14. Guide rod; 15. Guide groove; 2. Waste gas collection hood; 3. Heating box; 31. Box body; 311. Air blowing port; 312. Fixed edge; 313. Fixed hole; 314. Air outlet; 32. Heater; 321. Plug board; 322. Heating wire; 323. First wire; 324. First plug connector; 33. Fan; 331. Wind wheel; 332. Motor; 333. Mounting plate; 334. Mounting hole; 335. Second wire; 336. Second plug connector; 4. Oven door; 5. Lifting cylinder. Detailed Embodiment

[0024] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The following will be further described in conjunction with the drawings and specific embodiments:

[0026] Embodiment 1

[0027] As Figure 1 、 Figure 2 and Figure 3 shown, a curing oven for an electrostatic coating applicator includes an oven housing 1. There are openings at the front and rear ends of the oven housing 1. This structure facilitates the smooth entry of the coated gas cylinders into the interior of the oven. On both sides of the openings at the front and rear ends of the oven housing 1, lifting cylinders 5 are symmetrically arranged. And at the openings at the front and rear ends of the oven housing 1, there is an oven door 4 which can move up and down. The two sides of the oven door 4 are connected to the output ends of the lifting cylinders 5. After the gas cylinder enters the interior of the oven housing 1, the lifting cylinders 5 are used to drive the oven door 4 to descend, so that the oven door 4 seals the openings at the front and rear ends of the oven housing 1 to prevent the escape of hot air. On the upper sides of the openings at the front and rear end faces of the oven housing 1, waste gas collection hoods 2 are provided for collecting the gas overflowing from the interior of the oven housing 1. An air inlet 11 is provided on one side of the oven housing 1. A heating box 3 is installed at the air inlet 11. The heat generated by the heating box 3 is discharged into the interior of the oven housing 1 through the air inlet. The heating box 3 includes a box body 31, a heater 32 and a fan 33. The heater 32 is installed inside the box body 31, and the fan 33 is installed on the side of the heater 32. The inside of the box body 31 communicates with the air inlet 11 of the oven housing 1. The exhaust end of the fan 33 is inserted into the interior of the box body 31. By driving the air to blow into the interior of the box body 31 by the fan 33, the flowing air will pour the heat generated by the heater 32 into the interior of the oven housing 1 and blow on the gas cylinder, so as to achieve the purpose of quickly drying the surface of the gas cylinder.

[0028] Working principle: The entire curing oven is installed on the coating machine, and the lifting cylinder 5, the fan 33, and the heater 32 are connected to the control system of the coating machine. After the gas cylinder enters the coating machine and finishes coating, it will be driven by the heavy-duty plate chain conveyor to continue moving into the oven housing 1. After the gas cylinder enters the oven housing 1, the heavy-duty plate chain conveyor will stop. Then, the lifting cylinder 5 drives the oven door 4 to descend to block the openings at the front and rear ends of the oven housing 1. Then, the fan 33 and the heater 32 of the heating box 3 are started, and the fan 33 blows hot air into the oven housing 1 to achieve the purpose of drying the gas cylinder inside. The waste gas overflowing from the openings at the front and rear ends of the oven housing 1 to the top will be collected and discharged by the waste gas collection hood 2. Compared with the prior art, in this application, oven doors 4 are installed on both sides of the oven housing 1. After the gas cylinder enters the oven housing 1, the lifting cylinder 5 drives the oven door 4 to close. Then, the heat generated by the heating box 3 is blown into the oven housing 1 by the fan 33, and the hot air will stay inside the oven housing 1, so as to achieve the purpose of quickly drying the gas cylinder inside the oven. At the same time, two waste gas collection hoods 2 are provided at the top of the front and rear ends of the oven housing 1 to discharge the excess gas inside the oven through the waste gas collection hood 2 when it escapes.

[0029] Embodiment 2

[0030] As Figure 1 、 Figure 2 and Figure 3 shown, a curing oven for an electrostatic coating machine includes an oven housing 1 with openings at the front and rear ends. This structure facilitates the smooth entry of the coated gas cylinder into the oven. Lifting cylinders 5 are symmetrically arranged on both sides of the openings at the front and rear ends of the oven housing 1, and oven doors 4 are provided at the openings at the front and rear ends of the oven housing 1. The oven doors 4 can move up and down, and both sides of the oven doors 4 are connected to the output ends of the lifting cylinders 5. After the gas cylinder enters the oven housing 1, the lifting cylinder 5 is used to drive the oven door 4 to descend, so that the oven door 4 blocks the openings at the front and rear ends of the oven housing 1 to prevent the escape of hot air. Waste gas collection hoods 2 are provided along the upper part of the openings on the front and rear end faces of the oven housing 1 to collect the gas overflowing from the inside of the oven housing 1. An air inlet 11 is provided on one side of the oven housing 1, and a heating box 3 is installed at the air inlet 11. The heat generated by the heating box 3 is discharged into the oven housing 1 through the air inlet. The heating box 3 includes a box body 31, a heater 32, and a fan 33. The heater 32 is installed inside the box body 31, and the fan 33 is installed on the side of the heater 32. The inside of the box body 31 communicates with the air inlet 11 of the oven housing 1, and the exhaust end of the fan 33 is inserted into the inside of the box body 31. The fan 33 drives the air to blow into the inside of the box body 31, and the flowing air will pour the heat generated by the heater 32 into the oven housing 1 and blow on the gas cylinder, so as to achieve the purpose of quickly drying the surface of the gas cylinder.

[0031] As Figure 2As shown in the figure, an air distribution plate 12 is provided near the top inside the oven housing 1. A plurality of air permeation holes 13 are evenly arranged on the air distribution plate 12. The cooperation of the air distribution plate 12 and the air permeation holes 13 facilitates the hot air inside the oven to be evenly blown on the gas cylinders, facilitating the uniform drying of the gas cylinders. Guide rods 14 are provided on both sides of the openings at the front and rear ends of the oven housing 1, and guide grooves 15 are longitudinally provided on the opposite sides of the two guide rods 14, for guiding the oven door 4, facilitating the stable up and down movement of the oven door 4.

[0032] As Figure 4 shown, the top of the box body 31 is open. On one end of the two side surfaces of the box body 31 close to the oven housing 1, there are fixed edges 312, and a plurality of fixing holes 313 are provided on the fixed edges 312 from top to bottom. The cooperation of the fixed edges 312 and the fixing holes 313 facilitates the fixing of the position of the box body 31 through bolts. On the side of the box body 31 facing the oven housing 1, there is an air outlet 314, which facilitates the hot air inside the box body 31 to smoothly enter the inside of the oven housing 1. At the position aligned with the air outlet 314 on the other side, there is an air blowing port 311, which facilitates the cooperation with the exhaust end of the fan 33, facilitating the fan 33 to draw external air into the inside of the box body 31.

[0033] As Figure 5 shown, insertion plates 321 are evenly provided at the bottom of the heater 32. The insertion plates 321 are used for plugging inside the opening at the top of the box body 31, and a plurality of heating wires 322 are evenly provided on the bottom surface of the insertion plates 321. The heating wires 322 are used for heating the air entering the inside of the box body 31. On the side of the heater 32, there is a first wire 323, and a first plug connector 324 is provided at the end of the first wire 323. The first wire 323 and the first plug connector 324 facilitate the connection of the heater 32 to the control system of the coating machine.

[0034] As Figure 6 shown, a wind wheel 331 is provided inside the fan 33, and a motor 332 is installed on the side of the fan 33. The wind wheel 331 is connected to the output end of the motor 332. Driving the wind wheel 331 to rotate by the motor 332 can draw air into the inside of the box body 31. On the side of the motor 332, there is a second wire 335, and a second plug connector 336 is provided at the end of the second wire 335. The cooperation of the second wire 335 and the second plug connector 336 facilitates the power supply to the fan 33. One end of the fan 33 fitting the box body 31 is provided with a mounting plate 333, and a plurality of mounting holes 334 are provided on the mounting plate 333. The mounting holes 334 cooperate with bolts to fix the fan 33 on the box body 31.

[0035] The above is only the preferred implementation manner of the present utility model and is not used to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A curing oven for an electrostatic coating applicator, comprising an oven housing (1), characterized in that, The oven housing (1) is provided with openings at both the front and rear ends. Lifting cylinders (5) are symmetrically arranged on both sides of the openings at the front and rear ends of the oven housing (1). An oven door (4) is provided at the openings at the front and rear ends of the oven housing (1). The oven door (4) can move up and down, and both sides of the oven door (4) are connected to the output ends of the lifting cylinders (5). Exhaust gas collection hoods (2) are provided along the upper sides of the openings on the front and rear end faces of the oven housing (1) for collecting the gas overflowing from the inside of the oven housing (1). An air inlet (11) is provided on one side of the oven housing (1). A heating box (3) is installed at the air inlet (11). The heating box (3) includes a box body (31), a heater (32), and a fan (33). The heater (32) is installed inside the box body (31), and the fan (33) is installed on the side of the heater (32). The inside of the box body (31) communicates with the air inlet (11) of the oven housing (1), and the exhaust end of the fan (33) is inserted into the inside of the box body (31).

2. The curing oven for an electrostatic coating applicator according to claim 1, wherein, A wind distribution plate (12) is provided at a position near the top inside the oven housing (1). A plurality of air permeation holes (13) are evenly provided on the wind distribution plate (12).

3. A curing oven for an electrostatic coating applicator according to claim 1, characterized in that, Guide rods (14) are provided on both sides of the openings at the front and rear ends of the oven housing (1). A guide groove (15) is longitudinally provided on the opposite side surfaces of the two guide rods (14) for guiding the oven door (4).

4. A curing oven for an electrostatic coating applicator, as claimed in claim 1, wherein The top of the box body (31) is provided with an opening. Fixed edges (312) are provided at one ends of the two side surfaces of the box body (31) close to the oven housing (1). A plurality of fixing holes (313) are provided on the fixed edges (312) from top to bottom. An air outlet (314) is provided on the side of the box body (31) facing the oven housing (1), and a blowing port (311) is provided at a position on the other side aligned with the air outlet (314).

5. The curing oven for an electrostatic coating applicator according to claim 1, characterized in that, Plugs (321) are evenly provided at the bottom of the heater (32) for plugging into the inside of the opening at the top of the box body (31). A plurality of heating wires (322) are evenly provided on the bottom surface of the plugs (321). A first wire (323) is provided on the side of the heater (32), and a first plug (324) is provided at the end of the first wire (323).

6. A curing oven for an electrostatic coating applicator according to any one of claims 1-5, characterized in that, A wind wheel (331) is provided inside the fan (33), and a motor (332) is installed on the side of the fan (33). The wind wheel (331) is connected to the output end of the motor (332). A second wire (335) is provided on the side of the motor (332), and a second plug (336) is provided at the end of the second wire (335).

7. A curing oven for an electrostatic coating applicator according to claim 6, wherein, An installation plate (333) is provided at one end of the fan (33) in contact with the box body (31). A plurality of installation holes (334) are provided on the installation plate (333), and the installation holes (334) cooperate with bolts to fix the fan (33) on the box body (31).

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