High-frequency welded pipe drying device

Abstract

The invention discloses a high-frequency welded pipe drying device which can realize full-automatic treatment of welded pipes from feeding to drying to discharging. The device is composed of a straight rail, a feeding frame, a guide-out plate, a sliding frame, a rotating frame, a lifting mechanism, a lifting plate, a drying bin, a turnover mechanism and the like. The feeding frame is in butt joint with the assembly line, receives continuously-produced welded pipes and is matched with the releasing mechanism to achieve guiding-out of a single welded pipe at a time. And the bearing frame on the lifting plate can vertically position the horizontal welded pipe, so that the occupied space is greatly saved. The sliding frame moves along the straight rail to drive the rotating frame and the lifting plate to operate, the overturning mechanism drives the rotating frame to overturn, and the processes of feeding, transferring to the drying bin and discharging are completed in cooperation with the lifting action of the lifting mechanism. During drying, the lifting plate and the drying bin are sealed to form a closed space, the hot-air blower blows the inner wall and the outer wall of the welded pipe through the air inlet corresponding to the pipe opening of the welded pipe, and the drying effect is thorough. The device is high in automation degree, stable and reliable in operation and capable of efficiently meeting assembly line production requirements.

Description

Technical Field

[0001] This invention relates to the field of welded pipe processing equipment technology, and in particular to a high-frequency welded pipe drying device. Background Technology

[0002] During the production process of high-frequency welded pipes, moisture often remains on the surface and inside after welding and cooling. If not dried in time, this will not only affect the quality of subsequent processing but may also cause the pipes to rust, reducing their service life.

[0003] Currently, existing welded pipe drying equipment has some shortcomings in use. For example, some devices are difficult to adapt to the continuous production mode of the production line, with low automation in the feeding and discharging processes, requiring more manual intervention and affecting production efficiency; some devices have poor drying effect, failing to fully dry both the outer and inner walls of the welded pipe simultaneously, resulting in incomplete drying; and some devices use a horizontal method when placing the welded pipe, which occupies a large space and is prone to falling or shifting during pipe transfer, affecting the stability and reliability of drying.

[0004] Therefore, developing a high-frequency welded pipe drying device that can be adapted to assembly line production, has a high degree of automation, good drying effect, small footprint, and stable and reliable operation is of great practical significance. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes a high-frequency welded pipe drying device.

[0006] The present invention proposes a high-frequency welded pipe drying device, comprising a straight rail, a feeding rack, a vertical plate, an output plate, a sliding rack, a rotating rack, a lifting mechanism, a lifting plate, a drying chamber, and a tilting mechanism;

[0007] The feeding rack is fixed above the feeding end of the straight rail and is used to support the welded pipe to be dried; the vertical plate is fixed vertically to the drying end of the straight rail, and the discharge plate is set above the middle of the discharge side of the straight rail and is used to discharge the dried welded pipe; the drying chamber is fixedly installed on the upper part of the vertical plate, and the opening of the drying chamber faces the direction of the straight rail.

[0008] The sliding frame slides in conjunction with the straight rail and can reciprocate between the feeding end, the drying end, and the middle of the discharge side along the straight rail; the rotating frame is rotatably connected to the sliding frame via a vertical rotating shaft, and the lifting mechanism is installed on the rotating frame to drive the lifting plate to move vertically up and down;

[0009] The lifting plate has a lowering position and an uppering position: when in the lowering position, the lifting plate and the support frame are located below the feeding rack and the output plate; when in the uppering position, the lifting plate and the support frame are located above the feeding rack and the output plate, and are at the same horizontal height as the opening end of the drying chamber.

[0010] The flipping mechanism is located in the middle of the straight rail and is used to drive the rotating frame to flip the lifting plate, so that the bearing frame can selectively face the feeding frame, the drying chamber or the discharge plate.

[0011] When the sliding frame is located at the feeding end, the support frame faces the feeding frame to receive the welded pipe; when the sliding frame is located at the drying end, the support frame faces the drying chamber to connect with the drying chamber; when the sliding frame is located in the middle of the discharge side, the support frame faces the discharge plate to discharge the welded pipe.

[0012] Preferably, the front end of the support frame is provided with multiple sets of spaced and upwardly inclined guide teeth, and the top of the support frame is provided with a limiting frame corresponding to each guide tooth; the guide teeth are used to guide the welded pipe to slide into the support frame, and the limiting frame is used to position the welded pipe.

[0013] Preferably, the end of the feeding rack is provided with multiple sets of spaced and downwardly inclined first extensions, the spacing of the first extensions being adapted to the spacing of the guide teeth, so that the first extensions and the guide teeth can be interlaced; the feeding rack is equipped with a release mechanism for controlling the welded pipes to enter the support frame one by one in sequence.

[0014] Preferably, the release mechanism includes a crossbeam, two sets of telescopic rods, and two sets of baffles; the crossbeam is fixed above the end of the feeding rack, the two sets of telescopic rods are vertically installed at the bottom of the crossbeam, and the two sets of baffles are respectively fixed to the output end of the telescopic rods and are parallel to each other; the baffles can be raised and lowered under the drive of the telescopic rods to selectively intercept or release individual welded pipes.

[0015] Preferably, the front end of the guide plate is slidably connected to a telescopic guide plate via a cylinder, and the end of the telescopic guide plate is provided with multiple sets of spaced and downwardly inclined second extensions, the spacing of the second extensions being adapted to the spacing of the guide teeth; when the telescopic guide plate extends, the second extensions and the guide teeth can be interlaced to support the welded pipes on the support frame.

[0016] Preferably, the flipping mechanism includes a rack and a gear; the rack is fixed to the middle side of the straight rail, and the gear is fixed to the lower end of the vertical rotating shaft of the rotating frame and meshes with the rack; when the sliding frame moves to the middle of the straight rail, the gear meshes with the rack to drive the rotating frame to flip the lifting plate.

[0017] Preferably, the flipping mechanism includes a telescopic rod, a driving component, a locking block, and a locking member; the telescopic rod is vertically installed in the middle of the straight rail, the driving component is fixed to the output end of the telescopic rod, and the locking block is fixed to the transmission end of the driving component; the locking member is fixed to the lower end of the vertical rotating shaft of the rotating frame, and its outer wall is provided with a locking groove adapted to the locking block; when the sliding frame moves to the middle of the straight rail, the telescopic rod drives the locking block to rise and engage with the locking member, and the driving component can drive the rotating frame to flip 90° or 180°.

[0018] Preferably, when the sliding frame moves to the drying end, the edge of the lifting plate is sealed and connected with the opening edge of the drying chamber to form a closed drying chamber; multiple sets of air inlets are arranged vertically at intervals on both sides of the drying chamber, and each set of air inlets corresponds to the welded pipe opening on a single support frame; all air inlets are connected to the output end of the hot air blower through the conduit, so that hot air can blow on the outer and inner walls of the welded pipe at the same time.

[0019] Preferably, the lifting mechanism is a screw and nut transmission structure, including a motor, a screw and a nut seat; the motor is fixed on the rotating frame, the screw is vertically arranged and transmitted to the output end of the motor, and the nut seat is threadedly engaged with the screw and fixedly connected to the lifting plate.

[0020] Preferably, the straight rail is provided with a drive mechanism for driving the sliding frame to move along the straight rail, and the drive mechanism is a ball screw module driven by a servo motor.

[0021] The high-frequency welded pipe drying device proposed in this invention has the following beneficial effects:

[0022] Adaptable to assembly line production with a high degree of automation: This device connects with the assembly line and can handle the continuous production of welded pipes one by one. Through the movement of the sliding frame, the rotation of the rotating frame, and the lifting of the lifting mechanism, the entire process of welded pipes from automatic feeding and drying to automatic unloading is automated, reducing manual intervention and improving adaptability to assembly line production and production efficiency.

[0023] The support frame on the lifting plate can vertically position each horizontally discharged welded pipe, which significantly reduces the space occupied compared to the horizontal placement method and is more conducive to layout and installation in the production workshop.

[0024] The drying chamber and the lifting plate are sealed together to form a closed drying room, and the air inlet corresponds to the welded pipe opening, so that hot air can blow on the outer and inner walls of the welded pipe at the same time, ensuring that the welded pipe can be fully dried and improving the drying quality.

[0025] The guide teeth and limiters on the support frame can effectively guide and position the welded pipe, preventing it from falling or shifting during transport. The staggered design of the extensions on the feeding rack and the guide teeth ensures the stability of the welded pipe during transport.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure for picking up materials from the feeding rack according to the present invention;

[0029] Figure 3 This is a schematic diagram of the structure for transferring the welded pipe to the drying chamber according to the present invention;

[0030] Figure 4 This is a schematic diagram of the structure during the material feeding process of the present invention.

[0031] Figure 5 This is a schematic diagram of the support frame in this invention;

[0032] Explanation of the labels in the diagram:

[0033] 1. Straight rail; 101. Sliding frame;

[0034] 2. Rotating frame; 201. Lifting mechanism; 202. Lifting plate; 203. Bearing frame; 2031. Guide gear; 2032. Limiting frame;

[0035] 3. Feeding rack; 301. Release mechanism; 4. Vertical plate;

[0036] 5. Drying chamber; 501. Air inlet; 502. Duct;

[0037] 6. Tilting mechanism;

[0038] 7. Outlet plate; 701. Telescopic guide plate; 702. Discharge rack. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figures 1-5The high-frequency welded pipe drying device shown includes a straight rail 1, a feeding rack 3, a vertical plate 4, an output plate, a sliding frame 101, a rotating frame 2, a lifting mechanism 201, a lifting plate 202, a drying chamber 5, and a flipping mechanism 6.

[0041] The feeding rack 3 is fixed above the feeding end of the straight rail 1 and connects with the discharge end of the welded pipe production line to receive the welded pipes to be dried continuously produced by the production line; the vertical plate 4 is vertically fixed to the drying end of the straight rail 1, and the discharge plate is set above the middle of the discharge side of the straight rail 1 to discharge the dried welded pipes; the drying chamber 5 is fixedly installed on the upper part of the vertical plate 4, and the opening of the drying chamber 5 faces the direction of the straight rail 1.

[0042] The sliding frame 101 is slidably engaged with the straight rail 1 and can reciprocate along the straight rail 1 between the feeding end, the drying end and the middle of the discharge side; the rotating frame 2 is rotatably connected to the sliding frame 101 through a vertical rotating shaft, and the lifting mechanism 201 is installed on the rotating frame 2 to drive the lifting plate 202 to rise and fall vertically. Multiple sets of horizontally parallel support frames 203 are installed on the lifting plate 202. The support frames 203 can vertically position the horizontally discharged welded pipes one by one to reduce the footprint.

[0043] The lifting plate 202 has a lowering position and an uppering position: when in the lowering position, the lifting plate 202 and the support frame 203 are located below the feeding frame 3 and the output plate; when in the uppering position, the lifting plate 202 and the support frame 203 are located above the feeding frame 3 and the output plate, and are at the same horizontal height as the opening end of the drying chamber 5.

[0044] The flipping mechanism 6 is located in the middle of the straight rail 1 and is used to drive the rotating frame 2 to flip the lifting plate 202, so that the bearing frame 203 can selectively face the feeding frame 3, the drying chamber 5 or the output plate.

[0045] When the sliding frame 101 is located at the feeding end, the support frame 203 faces the feeding frame 3 to receive the welded pipe; when the sliding frame 101 is located at the drying end, the support frame 203 faces the drying chamber 5 to connect and dry; when the sliding frame 101 is located in the middle of the discharge side, the support frame 203 faces the discharge plate to discharge the welded pipe.

[0046] Furthermore, the front end of the support frame 203 is provided with multiple sets of spaced and upwardly inclined guide teeth 2031, and the top of the support frame 203 is provided with a limiting frame 2032 corresponding to the guide teeth 2031. The guide teeth 2031 are used to guide the welded pipe to slide into the support frame 203, and the limiting frame 2032 is used to vertically position the welded pipe on the support frame 203, with one welded pipe supported on one support frame 203.

[0047] Furthermore, the end of the feeding rack 3 is provided with multiple sets of spaced and downwardly inclined first extensions, the spacing of the first extensions being adapted to the spacing of the guide teeth 2031, so that the first extensions and the guide teeth 2031 can intersect each other; the feeding rack 3 is equipped with a release mechanism 301, which is used to control the welded pipes produced by the production line to enter the support frame 203 one by one in sequence.

[0048] Furthermore, the release mechanism 301 includes a crossbeam, two sets of telescopic rods, and two sets of baffles; the crossbeam is fixed above the end of the feeding rack 3, the two sets of telescopic rods are vertically installed at the bottom of the crossbeam, and the two sets of baffles are respectively fixed to the output end of the telescopic rods and are parallel to each other; the baffles can be raised and lowered under the drive of the telescopic rods to selectively intercept or release a single welded pipe.

[0049] The first baffle of the release mechanism 301 blocks the welded pipe that is about to be released, and the second baffle blocks the second welded pipe. After the first baffle releases the pipe, it lowers again to block it, and the second baffle blocks the second welded pipe again. By repeating the above operation, the release of a single welded pipe can be achieved. In conjunction with the rising of the lifting plate, the welded pipe can be released.

[0050] Furthermore, the front end of the guide plate is slidably connected to a telescopic guide plate via a cylinder. The end of the telescopic guide plate is provided with multiple sets of spaced and downwardly inclined second extensions. The spacing of the second extensions is adapted to the spacing of the guide teeth 2031. When the telescopic guide plate extends, the second extensions and the guide teeth 2031 can be interlaced to receive the welded pipes on the support frame 203, thereby realizing automatic unloading.

[0051] Furthermore, the flipping mechanism 6 includes a rack and a gear; the rack is fixed to the middle side of the straight rail 1, and the gear is fixed to the lower end of the vertical rotating shaft of the rotating frame 2 and meshes with the rack; when the sliding frame 101 moves to the middle of the straight rail 1, the gear meshes with the rack to drive the rotating frame 2 to flip the lifting plate 202.

[0052] Alternatively, the flipping mechanism 6 includes a telescopic rod, a driving component, a locking block, and a locking member; the telescopic rod is vertically installed in the middle of the straight rail 1, the driving component is fixed to the output end of the telescopic rod, and the locking block is fixed to the transmission end of the driving component; the locking member is fixed to the lower end of the vertical rotating shaft of the rotating frame 2, and its outer wall is provided with a locking groove adapted to the locking block; when the sliding frame 101 moves to the middle of the straight rail 1, the telescopic rod drives the locking block to rise and engage with the locking member, and the driving component can drive the rotating frame 2 to flip 90° or 180°.

[0053] Furthermore, when the sliding frame 101 moves to the drying end, the edge of the lifting plate 202 is sealed and connected to the opening edge of the drying chamber 5 to form a closed drying chamber; multiple sets of air inlets 501 are arranged vertically at intervals on both sides of the drying chamber 5, and each set of air inlets 501 corresponds to the welded pipe opening on a single support frame 203; all air inlets 501 are collected through the conduit 502 and connected to the output end of the hot air blower, so that hot air can blow on the outer and inner walls of the welded pipe at the same time.

[0054] Furthermore, the lifting mechanism 201 is a screw and nut transmission structure, including a motor, a screw and a nut seat; the motor is fixed on the rotating frame 2, the screw is vertically arranged and transmitted to the output end of the motor, and the nut seat is threadedly engaged with the screw and fixedly connected to the lifting plate 202.

[0055] Furthermore, the straight rail 1 is provided with a drive mechanism for driving the sliding frame 101 to move along the straight rail 1, and the drive mechanism is a ball screw module driven by a servo motor.

[0056] In this embodiment, during operation:

[0057] Feeding Stage: In the assembly line production, welded pipes are continuously produced one by one and enter the feeding rack 3. The sliding rack 101 moves to the feeding end of the straight rail 1 under the action of the drive mechanism. The flipping mechanism 6 drives the rotating rack 2 to flip the lifting plate 202, so that the carrier rack 203 faces the feeding rack 3. At this time, the lifting plate 202 is in the descending position. Because the first extension at the end of the feeding rack 3 intersects with the guide teeth 2031 at the front end of the carrier rack 203, the release mechanism 301 starts working. Two sets of telescopic rods drive the baffle to rise and fall, allowing only one welded pipe to exit at a time. Subsequently, the lifting mechanism 201 drives the lifting plate 202 to rise to the ascending position, and the welded pipe is transferred from the first extension to the carrier rack 203. The limiting frame 2032 vertically positions the horizontally exiting welded pipe on the carrier rack 203 of the lifting plate 202, completing the automated feeding process.

[0058] Transfer and flipping stage: The drive mechanism drives the sliding frame 101 to move along the straight rail 1 towards the drying end. When the sliding frame 101 moves to the middle of the straight rail 1, the flipping mechanism 6 works, driving the rotating frame 2 to flip the lifting plate 202 180 degrees, so that the bearing frame 203 faces the drying chamber 5.

[0059] Drying stage: The sliding frame 101 continues to move to the drying end. At this time, the edge of the lifting plate 202 is sealed and connected with the opening edge of the drying chamber 5 to form a closed drying chamber. The hot air blower delivers hot air to the air inlet 501 of the drying chamber 5 through the duct 502. Each air outlet faces one end of the welded pipe. The hot air can dry not only the outside of the welded pipe, but also the inner ring of the pipe.

[0060] Return and re-flipping stage: After drying is completed, the sliding rack 101 returns along the straight rail 1. When it moves to the middle of the straight rail 1, the flipping mechanism 6 works again, driving the lifting plate 202 to rotate 90 degrees, so that the support rack 203 faces the guide plate.

[0061] Discharge stage: The sliding frame 101 moves to the middle of the discharge side, the cylinder drives the telescopic guide plate to push out, the second extension and guide teeth 2031 interweave, the lifting mechanism 201 drives the lifting plate 202 to descend, and the dried welded pipe is discharged from the discharge plate through the second extension, realizing automatic unloading. Subsequently, all components are reset, ready to receive the next welded pipe and enter the next work cycle to adapt to the continuous production of the production line.

[0062] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-frequency welded pipe drying device, characterized in that: Straight rail (1), feeding rack (3), upright plate (4), guide plate, sliding rack (101), rotating rack (2), lifting mechanism (201), lifting plate (202), drying chamber (5) and turning mechanism (6); The feeding rack (3) is fixed above the feeding end of the straight rail (1) and is used to carry the welded pipe to be dried; the vertical plate (4) is vertically fixed to the drying end of the straight rail (1), and the discharge plate is set above the middle of the discharge side of the straight rail (1) and is used to discharge the dried welded pipe; the drying chamber (5) is fixedly installed on the upper part of the vertical plate (4), and the opening of the drying chamber (5) faces the direction of the straight rail (1); The sliding frame (101) is slidably engaged with the straight rail (1) and can reciprocate between the feeding end, the drying end and the middle of the discharge side along the straight rail (1); the rotating frame (2) is rotatably connected to the sliding frame (101) through a vertical rotating shaft, and the lifting mechanism (201) is installed on the rotating frame (2) to drive the lifting plate (202) to rise and fall vertically; The lifting plate (202) has a lowering position and an uppering position: when in the lowering position, the lifting plate (202) and the support frame (203) are located below the feeding rack (3) and the outlet plate; when in the uppering position, the lifting plate (202) and the support frame (203) are located above the feeding rack (3) and the outlet plate, and are at the same horizontal height as the opening end of the drying chamber (5); The flipping mechanism (6) is located in the middle of the straight rail (1) and is used to drive the rotating frame (2) to flip the lifting plate (202) so that the bearing frame (203) can selectively face the feeding frame (3), the drying chamber (5) or the output plate. When the sliding frame (101) is located at the feeding end, the support frame (203) faces the feeding frame (3) to receive the welded pipe; when the sliding frame (101) is located at the drying end, the support frame (203) faces the drying chamber (5) to connect and dry; when the sliding frame (101) is located in the middle of the discharge side, the support frame (203) faces the discharge plate to discharge the welded pipe.

2. The high-frequency welded pipe drying device according to claim 1, characterized in that, The front end of the support frame (203) is provided with multiple sets of spaced and upwardly inclined guide teeth (2031), and the top of the support frame (203) is provided with a limiting frame (2032) corresponding to the guide teeth (2031). The guide teeth (2031) are used to guide the welded pipe to slide into the support frame (203), and the limiting frame (2032) is used to position the welded pipe.

3. The high-frequency welded pipe drying device according to claim 2, characterized in that, The end of the feeding rack (3) is provided with multiple sets of spaced and downwardly inclined first extensions. The spacing of the first extensions is adapted to the spacing of the guide teeth (2031), so that the first extensions and the guide teeth (2031) can be interlaced. The feeding rack (3) is equipped with a release mechanism (301) to control the welded pipes to enter the support frame (203) one by one in sequence.

4. The high-frequency welded pipe drying device according to claim 3, characterized in that, The release mechanism (301) includes a cross frame, two sets of telescopic rods and two sets of baffles; the cross frame is fixed above the end of the feeding frame (3), the two sets of telescopic rods are vertically installed at the bottom of the cross frame, and the two sets of baffles are respectively fixed at the output end of the telescopic rods and are parallel to each other; the baffles can be raised and lowered under the drive of the telescopic rods to selectively intercept or release a single welded pipe.

5. A high-frequency welded pipe drying device according to claim 2, characterized in that, The front end of the guide plate is slidably connected to a telescopic guide plate via a cylinder. The end of the telescopic guide plate is provided with multiple sets of spaced and downwardly inclined second extensions. The spacing of the second extensions is adapted to the spacing of the guide teeth (2031). When the telescopic guide plate extends, the second extensions and the guide teeth (2031) can be interlaced to support the welded pipes on the support frame (203).

6. The high-frequency welded pipe drying device according to claim 1, characterized in that, The flipping mechanism (6) includes a rack and a gear; the rack is fixed to the middle side of the straight rail (1), and the gear is fixed to the lower end of the vertical shaft of the rotating frame (2) and meshes with the rack; when the sliding frame (101) moves to the middle of the straight rail (1), the gear meshes with the rack to drive the rotating frame (2) to flip the lifting plate (202).

7. The high-frequency welded pipe drying device according to claim 1, characterized in that, The flipping mechanism (6) includes a telescopic rod, a driving component, a locking block, and a locking member; the telescopic rod is vertically installed in the middle of the straight rail (1), the driving component is fixed to the output end of the telescopic rod, and the locking block is fixed to the transmission end of the driving component; the locking member is fixed to the lower end of the vertical rotating shaft of the rotating frame (2), and its outer wall is provided with a slot that matches the locking block; when the sliding frame (101) moves to the middle of the straight rail (1), the telescopic rod drives the locking block to rise and engage with the locking member, and the driving component can drive the rotating frame (2) to flip 90° or 180°.

8. The high-frequency welded pipe drying device according to claim 1, characterized in that, When the sliding frame (101) moves to the drying end, the edge of the lifting plate (202) is sealed and connected with the opening edge of the drying chamber (5) to form a closed drying chamber; the two side walls of the drying chamber (5) are provided with multiple sets of air inlets (501) at vertical intervals, and each set of air inlets (501) corresponds to the welded pipe opening on a single support frame (203); all air inlets (501) are connected to the output end of the hot air blower through the conduit (502) so that the hot air can blow on the outer wall and inner wall of the welded pipe at the same time.

9. A high-frequency welded pipe drying device according to claim 1, characterized in that, The lifting mechanism (201) is a screw and nut transmission structure, including a motor, a screw and a nut seat; the motor is fixed on the rotating frame (2), the screw is vertically arranged and connected to the output end of the motor, and the nut seat is threadedly engaged with the screw and fixedly connected to the lifting plate (202).

10. A high-frequency welded pipe drying device according to claim 1, characterized in that, The straight rail (1) is provided with a driving mechanism for driving the sliding frame (101) to move along the straight rail (1). The driving mechanism is a ball screw module driven by a servo motor.

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