A quick heating steel-plastic coating machine with anticorrosion elbow

Abstract

The application discloses a kind of anticorrosive elbow pipe type steel plastic rapid heating coating machine, it is related to coating machine technical field, including coating machine main body, the left end of the top of coating machine main body is fixedly installed with support plate, one side of the support plate is provided with put piece shaft, the inside of the one end of put piece shaft is movably installed with elbow pipe type steel plastic main body.The stability of equipment connecting part is poor, and the problem that processing falls off easily, leading to processing damage, is solved by the cooperation of connecting shaft, fixed hoop, telescopic column and washer, reaches the function of reinforcing installation, one end of fixed hoop is stretched and moved, and the telescopic column is stretched and moved, the inside of washer is sleeved on the outside of discharge pipe, then the telescopic column is fixed by nut, reaches the function of limiting connection, it is convenient for fixed hoop to reinforce installation, it is favorable for the fixing of connecting mechanism to increase, improve the stability of device, so as to conveniently process.

Description

Technical Field

[0001] This invention relates to the field of coating machine technology, specifically to a corrosion-resistant bent-tube type steel-plastic rapid heating coating machine. Background Technology

[0002] The main forms of corrosion protection for steel-plastic conversion coatings are epoxy coating and polyethylene anti-corrosion layer. The polyethylene anti-corrosion layer requires an additional heat-shrink sleeve over the sprayed epoxy coating, forming a three-layer anti-corrosion structure of epoxy coating, adhesive layer, and polyethylene layer. Currently, the main processing method involves preheating the bent-tube steel-plastic conversion to 80℃, then inserting the heat-shrink sleeve onto the outside of the bent tube. The heat-shrink sleeve is then repeatedly heated and baked until it shrinks to the outside of the steel-plastic conversion. Due to the shape of the bent tube, the industry currently uses manual handheld flame spray guns for this operation. During the baking and shrinking process, the bent tube is manually pulled to remove wrinkles and voids.

[0003] The existing technical solution, disclosed in publication number CN108328436B, describes an automatic wrapping machine for curved pipe anti-corrosion composite tape, comprising a wrapping device, a curved pipe moving guide rail, and a static pressure support device. The wrapping device is fixedly installed at the left end of the curved pipe moving guide rail, and the curved pipe moving guide rail is fixedly connected to the wrapping device. The static pressure support device is fixedly installed at the right side of the curved pipe moving guide rail. The static pressure support device includes a left support frame, which is symmetrically arranged with a right support frame, and a gap is provided between the left support frame and the right support frame.

[0004] To address the issue of inaccurate tension control in the tension control device of the polyethylene composite tape in automatic winding and coating machines, leading to uneven winding tension, existing technology addresses this problem by reducing the tension of the polyethylene composite tape. This causes the pressure bar to move upwards, and the elbow plate and connecting plate, through a linkage, rotate around a pivot like a lever. This causes the speed-regulating motor and friction wheel to move downwards, reducing the contact pressure between the friction wheel and the hub, weakening friction, and preventing the speed-regulating motor's rotation from being transmitted to the feed wheel via the friction wheel. This reduces the feed speed and increases the tension of the polyethylene composite tape. However, this method suffers from wear and tear on the feeding components after prolonged use, requiring timely replacement of parts in the feeding area to prevent equipment malfunction. Summary of the Invention

[0005] The purpose of this invention is to provide a corrosion-resistant, bend-type steel-plastic rapid heating and coating machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A corrosion-resistant bent-tube type rapid heating coating machine for steel and plastic includes a coating machine body. A support plate is fixedly installed on the left end of the top of the coating machine body. A feeding shaft is provided on one side of the support plate. A bent-tube type steel and plastic body is movably installed inside one end of the feeding shaft. A heating box is movably installed on the outer side of the other end of the bent-tube type steel and plastic body.

[0008] A flange ring is fixedly sleeved on the left end of the placement shaft, one end of the flange ring is threaded to the side of the support plate, and a quick-release mechanism is movably installed on one end of the placement shaft.

[0009] A snap-fit ​​sleeve is movably sleeved on the outer side of the bent steel-plastic body near the heating box, and a limit mechanism is provided inside the snap-fit ​​sleeve.

[0010] A further improvement of the technical solution of the present invention is that: the quick-release mechanism includes a fixed shaft, a disassembly shaft is movably installed inside the fixed shaft, a material discharge tube is movably sleeved inside the disassembly shaft, and the material discharge tube is movably installed on the outside of one end of the bent steel-plastic body.

[0011] By adopting the above technical solution, the disassembly shaft, the feeding pipe and the bent steel-plastic body cooperate with each other to achieve the function of convenient disassembly and installation.

[0012] A further improvement of the technical solution of the present invention is that: a telescopic plate is fixedly connected to the left end of the disassembly shaft, and a drive shaft is movably connected to the other end of the telescopic plate.

[0013] A further improvement of the technical solution of the present invention is that: a buckle plate is fixedly installed on the inner side of the disassembly shaft, a sliding groove is provided on one side of the buckle plate, a locking block is movably installed inside the sliding groove, and a connecting shaft is fixedly installed on the side of the locking block.

[0014] By adopting the above technical solution, the snap-fit ​​installation function is achieved through the cooperation of the snap-fit ​​plate, connecting shaft, slide groove and snap block.

[0015] A further improvement of the technical solution of the present invention is that: a fixing ring is movably installed on the outer side of the end of the connecting shaft away from the connecting shaft, a telescopic column is connected to the internal thread of the fixing ring, a washer is fixedly installed on the inner side of one end of the fixing ring, and the inner side of the washer is set on the outer side of the discharge pipe.

[0016] By adopting the above technical solution, the fixed hoop, telescopic column, washer and discharge pipe work together to achieve the function of reinforced installation and facilitate stable dragging and processing at the connection of the device.

[0017] A further improvement of the technical solution of the present invention is that: a fixed base plate is fixedly installed at the bottom of the fixed shaft, a base plate is fixedly installed at the bottom of the fixed base plate, a drive slide shaft is provided at the bottom of the base plate, and a sliding frame is movably connected to the other end of the drive slide shaft.

[0018] By adopting the above technical solution, the fixed base plate, base plate, drive slide shaft and sliding frame cooperate with each other to achieve the function of cylinder sliding, which makes it convenient for the device to accurately control the drag force and displacement.

[0019] A further improvement of the technical solution of the present invention is that: the limiting mechanism includes a driving push column, one end of the driving push column is movably mounted with a pushing rod, and one end of the pushing rod is fixedly connected with an auxiliary clamping block.

[0020] By adopting the above technical solution, the auxiliary clamping function is achieved through the cooperation of the drive push column, the push rod and the auxiliary clamping block.

[0021] A further improvement of the technical solution of the present invention is that: a sliding cylinder is fixedly installed at the bottom of the snap-fit ​​sleeve block, and the bottom of the sliding cylinder is fixedly installed at the top of the sliding frame.

[0022] By adopting the above technical solution, the function of stable cornering is achieved through the cooperation of the sliding cylinder and the sliding frame.

[0023] A further improvement of the technical solution of the present invention is that: a heating port is provided inside the heating box, an infrared heating tube is fixedly installed on the inner wall of the heating port, and the inner side of the infrared heating tube is movably installed on the outer side of the bent tube-type steel-plastic body.

[0024] By adopting the above technical solution, the heating port, infrared heating tube and bent steel-plastic body work together to achieve the function of uniform heating and coating.

[0025] A further improvement of the technical solution of the present invention is that: a heat dissipation vent is fixedly installed on the top of the heating box, and a dustproof net is fixedly installed inside the heat dissipation vent.

[0026] By adopting the above technical solution, the heat dissipation vents and dustproof mesh work together to achieve convenient dustproof and heat dissipation functions.

[0027] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0028] 1. This invention provides a corrosion-resistant, bend-type steel-plastic rapid heating and coating machine. Through the coordinated operation of a disassembly shaft, telescopic plate, drive shaft, snap-fit ​​plate, slide groove, connecting shaft, and snap-fit ​​block, it solves the problem of wear and tear on the feeding assembly after prolonged use, necessitating timely replacement of parts in the feeding area to prevent equipment malfunction. This achieves convenient disassembly and installation. The feeding shaft utilizes a flange ring for threaded installation, resulting in a flange-shaft welded base for easy installation. The connecting shaft drives the snap-fit ​​block to be inserted from one end of the disassembly shaft, and its rotation allows the block to move within the slide groove, achieving a snap-fit ​​installation. When parts need replacement, rotating the connecting shaft causes the snap-fit ​​block to rotate out of the slide groove, facilitating disassembly of the feeding area from the base. This convenient disassembly and replacement enhances the ease of disassembly and installation, increasing equipment maintainability.

[0029] 2. This invention provides a corrosion-resistant, bend-type steel-plastic rapid heating and coating machine. Through the cooperation of a connecting shaft, a fixing ring, a telescopic column, and a washer, it solves the problem of poor stability in the equipment's connection parts, which easily leads to processing detachment and damage during automated coating. This achieves a reinforced installation function. The fixing ring is stretched and moved at one end, coordinating with the telescopic column's extension and retraction, causing the inner side of the washer to fit onto the outer side of the discharge pipe. Then, a nut limits and fixes the telescopic column, achieving a limiting connection function. This facilitates the reinforced installation of the fixing ring, increases the stability of the connection mechanism, and improves the overall stability of the device, thus facilitating processing.

[0030] 3. This invention provides a corrosion-resistant bent pipe type steel-plastic rapid heating and coating machine. Through the cooperation of a snap-fit ​​sleeve block, a sliding cylinder, a drive push column, a push rod, and an auxiliary clamping block, it solves the problem of poor fixation when the equipment is assisting in bending the bent pipe for heat shrink sleeve coating, which leads to the processing falling off during drag heating and thus affecting the processing quality of the equipment. It achieves a stable clamping function. The snap-fit ​​sleeve block is sleeved on the outside of the bent pipe type steel-plastic body, and works with the drive push column to provide power to drive the push rod and the auxiliary clamping block to clamp and fix it, achieving the function of clamping and limiting.

[0031] 4. This invention provides a corrosion-resistant, bent-tube type steel-plastic rapid heating and coating machine. Through the cooperation of a feeding shaft, flange ring, fixed shaft, feeding pipe, fixed base plate, drive sliding shaft, and sliding frame, the straight tube section begins to shrink from one side. The bent section, in conjunction with a clamping mechanism, undergoes repeated heating to soften the entire bending area. An auxiliary bending mechanism then clamps the section, maintaining a certain tension. As one side shrinks, the tube is dragged. When it reaches the designated dragging point, the auxiliary bending action is completed, and the tube is reset. Then, the other straight section is heated, which facilitates complete coating of the workpiece, thereby improving the working quality of the device.

[0032] 5. This invention provides a corrosion-resistant bending steel-plastic rapid heating and coating machine. By cooperating with a fixed base plate, a base plate, a drive shaft, and a sliding frame, it solves the problem of uneven heating and coating of bending pipes caused by excessively fast or slow speeds during the heat shrinking sleeve coating of stretched parts in traditional equipment, which affects the processing quality of the device. It achieves stable movement. The drive shaft is controlled by a servo motor, which can accurately control the dragging force and displacement, ensuring stable bending effect. When the device is dragged to a certain position, it can stably assist the bending action, which is conducive to uniform processing of the device.

[0033] 6. This invention provides a corrosion-resistant bent-tube type steel-plastic rapid heating and coating machine. The processing area of ​​the bent-tube type steel-plastic body is moved to the inside of the heating port. A nano-infrared heating tube is used as the heat source for heating. The heating ring is designed to be completely ring-shaped without gaps, so as to achieve the purpose of uniform heat throughout the circumference, which facilitates uniform heating and coating of the device and improves the processing quality of the equipment.

[0034] 7. This invention provides a corrosion-resistant bent-tube type steel-plastic rapid heating and coating machine. Through the mechanical design of the equipment, it replaces the conventional manual operation method, avoids the instability caused by manual operation, realizes mechanized operation, and ensures consistent heating power, action mode and movement speed. The quality is more stable and reliable, while also improving efficiency, reducing labor intensity, and realizing large-scale stable mechanized production. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 For the present invention Figure 1 Enlarged view of point A in the image;

[0037] Figure 3 This is a schematic diagram of the disassembly shaft structure of the present invention;

[0038] Figure 4 For the present invention Figure 3 Enlarged view of point B in the image;

[0039] Figure 5 This is a schematic diagram of the drive slide shaft structure of the present invention;

[0040] Figure 6 For the present invention Figure 5 Enlarged view of point C in the image;

[0041] Figure 7 This is a schematic diagram of the snap-fit ​​sleeve structure of the present invention;

[0042] Figure 8 This is a schematic diagram of the heating box structure of the present invention.

[0043] In the diagram: 1. Main body of the coating machine; 2. Support plate; 3. Feeding shaft; 31. Flange ring; 32. Fixed shaft; 33. Feeding pipe; 34. Disassembly shaft; 341. Telescopic plate; 342. Drive shaft; 343. Buckle plate; 344. Slide groove; 345. Connecting shaft; 346. Clamping block; 347. Fixed hoop; 348. Telescopic column; 349. Washer; 35. Fixed base plate; 36. Base plate; 37. Drive sliding shaft; 38. Sliding frame; 39. Clamping sleeve block; 390. Sliding cylinder; 391. Drive push column; 392. Push rod; 393. Auxiliary clamping block; 4. Bent tube type steel-plastic main body; 5. Heating box; 51. Heating port; 52. Infrared heating tube; 53. Heat dissipation port; 54. Dustproof net. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to embodiments:

[0045] Example 1

[0046] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides a corrosion-resistant bent-tube type rapid heating coating machine for steel and plastic, including a coating machine body 1. A support plate 2 is fixedly installed on the left end of the top of the coating machine body 1. A feeding shaft 3 is provided on one side of the support plate 2. A bent-tube type steel and plastic body 4 is movably installed inside one end of the feeding shaft 3. A heating box 5 is movably installed on the outer side of the other end of the bent-tube type steel and plastic body 4. A flange ring 31 is fixedly sleeved on the left end of the feeding shaft 3. One end of the flange ring 31 is threaded to the side of the support plate 2. A quick-release mechanism is movably installed on one end of the feeding shaft 3. The quick-release mechanism includes a fixed shaft 32. A disassembly shaft 34 is movably installed inside the fixed shaft 32. A feeding tube 33 is movably sleeved inside the disassembly shaft 34. The feeding tube 33 is movably installed on the outer side of one end of the bent-tube type steel and plastic body 4. A telescopic plate 341 is fixedly connected to the left end of the disassembly shaft 34. The other end of 41 is movably connected to a drive shaft 342. A snap plate 343 is fixedly installed on the inner side of the disassembly shaft 34. A groove 344 is opened on one side of the snap plate 343. A snap block 346 is movably installed inside the groove 344. A connecting shaft 345 is fixedly installed on the side of the snap block 346. The parting shaft 346 is threadedly installed by engaging a flange ring 31 at one end, and the connecting shaft 345 drives the snap block 346 to be inserted from one end of the disassembly shaft 34. With the rotation, the snap block 346 rotates and moves inside the groove 344, achieving the snap-fit ​​installation function. Then, the drive shaft 342 drives the telescopic plate 341 to telescopically move, driving the connecting shaft 345 and the bent tube steel-plastic body 4 to move horizontally, achieving the function of convenient installation. Similarly, it can facilitate the convenient disassembly of the device, which is conducive to the convenient replacement of parts in the later stage of the device and increases the endurance of the device.

[0047] Example 2

[0048] like Figure 4 , Figure 5 As shown, based on Embodiment 1, this embodiment provides a technical solution: Preferably, a fixing ring 347 is movably installed on the outer side of the end of the connecting shaft 345 away from the connecting shaft 345. A telescopic column 348 is threaded into the inner side of the fixing ring 347. A washer 349 is fixedly installed on the inner side of one end of the fixing ring 347. The inner side of the washer 349 is located on the outer side of the discharge pipe 33. A fixing base plate 35 is fixedly installed at the bottom of the fixing shaft 32. A base plate 36 is fixedly installed at the bottom of the fixing base plate 35. The bottom of the base plate 36... The device is equipped with a drive shaft 37, and the other end of the drive shaft 37 is movably connected to a sliding frame 38. When conveniently installed via the feed tube 33, one end of the fixing ring 347 is stretched and moved, which, together with the telescopic column 348, causes the inner side of the washer 349 to be sleeved on the outer side of the feed tube 33. Then, the telescopic column 348 is fixed by a nut to achieve the function of limiting connection, which facilitates the fixed installation of the device. This allows the sliding frame 38 to move outside the drive shaft 37, which is beneficial to the stable processing of the device and increases the convenience of the device.

[0049] Example 3

[0050] like Figure 6 , Figure 7 As shown, based on Embodiment 1, this embodiment provides a technical solution: Preferably, a snap-fit ​​sleeve 39 is movably sleeved on the outer side of the bent tube steel-plastic body 4 near the heating box 5. The snap-fit ​​sleeve 39 is provided with a limiting mechanism inside. The limiting mechanism includes a drive push column 391, a push rod 392 is movably installed at one end of the drive push column 391, an auxiliary clamping block 393 is fixedly connected to one end of the push rod 392, and a sliding cylinder 390 is fixedly installed at the bottom of the snap-fit ​​sleeve 39. The bottom of the sliding cylinder 390 is fixedly installed on the top of the sliding frame 38. When the bent tube steel-plastic body 4 is heated by bending, the snap-fit ​​sleeve 39 is sleeved on the outer side of the bent tube steel-plastic body 4 and works with the drive push column 391 to provide power to drive the push rod 392 and the auxiliary clamping block 393 to clamp and fix, thereby achieving the function of clamping and limiting. This facilitates the stable passage of the device when sliding through the bend, which is beneficial to the stable processing of the device and improves the processing quality of the device.

[0051] Example 4

[0052] like Figure 8As shown, based on Embodiment 1, this embodiment provides a technical solution: Preferably, a heating port 51 is provided inside the heating box 5, and an infrared heating tube 52 is fixedly installed on the inner wall of the heating port 51. The inner side of the infrared heating tube 52 is movably installed on the outer side of the bent tube-type steel-plastic body 4. A heat dissipation port 53 is fixedly installed on the top of the heating box 5, and a dustproof net 54 is fixedly installed inside the heat dissipation port 53. The net moves through the processing area of ​​the bent tube-type steel-plastic body 4 to the inside of the heating port 51, and uses the infrared heating tube 52 as a heat source for heating. The design of the heating port 51 is circular without gaps, so as to achieve uniform heat distribution throughout the circumference, which facilitates uniform heating of the device and makes the device easy to heat. After the device finishes heating, the ventilation of the heat dissipation port 53 facilitates convenient heat dissipation from the inner wall of the heating port 51.

[0053] The working principle of this anti-corrosion bent-tube type steel-plastic rapid heating and coating machine will be explained in detail below.

[0054] like Figure 1-8As shown, the workpiece is placed inside the placement shaft 3, and the bent tube component of the workpiece is sleeved inside the heating box 5. It is pressed tightly by the snap-fit ​​sleeve 39, causing the drive shaft 37 to drive the sliding frame 38 to slide. This causes the snap-fit ​​sleeve 39 and the workpiece to be dragged and displaced, allowing the bent section to be repeatedly heated and softened. As it is dragged while being heated and shrunken, the bending action is completed when it reaches the designated dragging point, and a reset process is performed. Then, the other straight section is heated, with one end of the placement shaft 3 engaging with the flange ring 31. The threaded installation, in conjunction with the connecting shaft 345, drives the locking block 346 to be inserted from one end of the disassembly shaft 34. The locking block 346 rotates and moves within the sliding groove 344, achieving the snap-fit ​​installation function. Then, the drive shaft 342 drives the telescopic plate 341 to extend and retract, causing the connecting shaft 345 and the bent-tube steel-plastic body 4 to move horizontally, achieving convenient installation. Similarly, it facilitates convenient disassembly of the device, which is beneficial for easy replacement of parts later, increasing the device's endurance. When the discharge pipe 33 is conveniently installed, one end of the fixing ring 347 is used. The device is stretched and moved in conjunction with the telescopic column 348, causing the inner side of the washer 349 to be sleeved on the outer side of the discharge pipe 33. The telescopic column 348 is then fixed by a nut, achieving a limiting connection and facilitating the fixed installation of the device. This allows the sliding frame 38 to move outside the drive shaft 37, improving stable processing and increasing the device's convenience. The bent steel-plastic body 4 is then heated through a bend, with the snap-fit ​​sleeve 39 sleeved on the outer side of the bent steel-plastic body 4. Power is provided by the drive push column 391, driving the push rod 392 and auxiliary... The auxiliary clamping block 393 clamps and fixes the device, achieving the function of clamping and limiting, thus facilitating the stable passage of the device when sliding through bends. This is beneficial for stable processing of the device and improves the processing quality of the device. The bent steel-plastic body 4 is heated when bending. The snap-fit ​​sleeve 39 is sleeved on the outside of the bent steel-plastic body 4 and works with the drive push column 391 to provide power, driving the push rod 392 to clamp and fix with the auxiliary clamping block 393, achieving the function of clamping and limiting, thus facilitating the stable passage of the device when sliding through bends. This is beneficial for stable processing of the device and improves the processing quality of the device.

[0055] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A corrosion-resistant bent-pipe type rapid heating and coating machine for steel and plastic, comprising a coating machine body (1), characterized in that: The covering A support plate (2) is fixedly installed on the left side of the top of the main body (1). A placement shaft (3) is provided on one side of the support plate (2). A bent tube steel-plastic body (4) is movably installed inside one end of the placement shaft (3). A heating box (5) is movably installed on the outside of the other end of the bent tube steel-plastic body (4). A flange ring (31) is fixedly sleeved on the left end of the placement shaft (3), one end of the flange ring (31) is threaded to the side of the support plate (2), and a quick-release mechanism is movably installed on one end of the placement shaft (3). The outer side of the bent steel-plastic body (4) near the heating box (5) is movably fitted with a snap-fit ​​sleeve (39), and the snap-fit ​​sleeve (39) is provided with a limit mechanism inside; The quick-release mechanism includes a fixed shaft (32), a disassembly shaft (34) is movably installed inside the fixed shaft (32), a discharge tube (33) is movably sleeved inside the disassembly shaft (34), and the discharge tube (33) is movably installed on the outside of one end of the bent steel-plastic body (4). The left end of the disassembly shaft (34) is fixedly connected to a telescopic plate (341), and the other end of the telescopic plate (341) is movably connected to a drive shaft (342). A snap plate (343) is fixedly installed on the inner side of the disassembly shaft (34). A groove (344) is provided on one side of the snap plate (343). A locking block (346) is movably installed inside the groove (344). A connecting shaft (345) is fixedly installed on the side of the locking block (346).

2. The anti-corrosion bent-pipe type rapid heating and coating machine for steel and plastic as described in claim 1, characterized in that: A fixing ring (347) is movably installed on the outer side of the end of the connecting shaft (345) away from the connecting shaft (345). A telescopic column (348) is threaded inside the fixing ring (347). A washer (349) is fixedly installed on the inner side of one end of the fixing ring (347). The inner side of the washer (349) is located on the outer side of the discharge pipe (33).

3. The anti-corrosion bent-pipe type rapid heating and coating machine for steel and plastic as described in claim 1, characterized in that: A fixed base plate (35) is fixedly installed at the bottom of the fixed shaft (32), a base plate (36) is fixedly installed at the bottom of the fixed base plate (35), a drive slide shaft (37) is provided at the bottom of the base plate (36), and a sliding frame (38) is movably connected to the other end of the drive slide shaft (37).

4. The anti-corrosion bent-pipe type rapid heating and coating machine for steel and plastic as described in claim 1, characterized in that: The limiting mechanism includes a drive push column (391), one end of which is movably mounted with a push rod (392), and one end of the push rod (392) is fixedly connected with an auxiliary clamping block (393).

5. The anti-corrosion bent-pipe type rapid heating and coating machine for steel and plastic as described in claim 1, characterized in that: A sliding cylinder (390) is fixedly installed at the bottom of the snap-fit ​​sleeve (39), and the bottom of the sliding cylinder (390) is fixedly installed at the top of the sliding frame (38).

6. The anti-corrosion bent-pipe type rapid heating and coating machine for steel and plastic as described in claim 1, characterized in that: The heating box (5) has a heating port (51) inside. An infrared heating tube (52) is fixedly installed on the inner wall of the heating port (51). The inner side of the infrared heating tube (52) is movably installed on the outer side of the bent steel-plastic body (4).

7. The anti-corrosion bent-pipe type rapid heating and coating machine for steel and plastic as described in claim 1, characterized in that: A heat dissipation vent (53) is fixedly installed on the top of the heating box (5), and a dustproof net (54) is fixedly installed inside the heat dissipation vent (53).

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