A pipe conveying device and conveying method for round-square pipe co-plating production line

Abstract

The application discloses a pipe conveying device for round-square pipe co-deposition production lines, and belongs to the technical field of conveying devices. The pipe conveying device comprises two main side plates and a transmission roller rotatably installed between the two main side plates. The transmission roller is sleeved with conveying belts at left and right ends. The conveying belts at the left and right ends of the transmission roller are provided with lifting units. The lifting units comprise positioning blocks installed on the conveying belts. A supporting plate is fixed between the two positioning blocks. The supporting plate is provided with two supporting modules for supporting two ends of the pipe. The supporting plate is provided with a first limiting module and a second limiting module. The pipe conveying device for round-square pipe co-deposition production lines and the conveying method are provided with elastic members on the limiting assembly. The elastic members are elastically deformed to adapt to pipes with different shapes. When the pipes are conveyed, the elastic members can conveniently clean the impurities attached to the surfaces of the pipes.

Description

Technical Field

[0001] This invention relates to the field of transmission device technology, specifically to a pipe transmission device and method for a round and square tube co-plating production line. Background Technology

[0002] In the hot-dip galvanizing process of steel pipes, round pipes and square pipes have different geometric characteristics. Round pipes have a uniform surface curvature, while square pipes have prominent edges and corners. Therefore, traditional conveying devices are difficult to accommodate the conveying and positioning of steel pipes with different cross-sectional shapes. To ensure the stability of steel pipe conveying, a specific conveying mechanism is usually used, such as the pipe conveying device with announcement number CN213169892U. This pipe conveying device includes a base assembly, an extension assembly, a pressure belt assembly, and a conveying assembly. The base assembly includes a base and a hydraulic cylinder. The extension assembly includes an extension outer shell and an extension inner shell. The pressure belt assembly includes a second motor, a second housing, a transmission screw, a transmission block, and a pressure belt roller. The conveying assembly includes a driving wheel, a second support, a third motor, a conveyor belt, a third support, and a driven wheel. The pipe moves along the conveyor belt from one end of the driving wheel to one end of the driven wheel, achieving the purpose of pipe conveying.

[0003] The existing technology has the following technical problems: When the existing conveying device conveys the pipe, in order to ensure the stability of the pipe, multiple baffles are set on the conveyor belt and the pipe is placed in the gap between the adjacent baffles for conveying. However, in actual processing, the cross-section of the pipe is not only round but also square. The fixed shape of the baffle gap is not convenient to adapt to the limiting of different shaped pipes.

[0004] Therefore, we propose a pipe conveying device and method for a round and square tube co-plating production line to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a pipe conveying device and method for a round and square tube co-plating production line, in order to solve the problem mentioned in the background art that existing conveying devices on the market, in order to ensure the stability of the pipes, use multiple baffles on the conveyor belt and place the pipes in the gaps between adjacent baffles for conveying. However, in actual processing, the cross-section of the pipes includes not only round pipes but also square pipes, and the fixed shape of the baffle gaps is not convenient to adapt to the limiting of different shaped pipes.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A pipe conveying device for a round and square tube co-plating production line includes two main side plates and a transmission roller rotatably mounted between the two main side plates. Conveyor belts are fitted at both ends of the transmission roller. Lifting units are mounted on the conveyor belts at both ends of the transmission roller, and each lifting unit includes positioning blocks mounted on the conveyor belts. A support plate is fixed between the two positioning blocks. Two support modules are mounted on the support plate, respectively used to support both ends of the pipe. A first limiting module and a second limiting module are mounted on the support plate, and the first and second limiting modules are used to adapt to the limiting of round or square pipes. The support modules are mounted on a transmission screw, and a main gear is keyed to the transmission screw. The transmission screw and the support plate are rotatably connected, and a torsion spring providing a reset force is provided on the outer side of the end of the transmission screw. A staggered linkage rack is fixed on the two main side plates, and the linkage rack controls the rotation of the main gear in contact with it. After the main gear and the transmission screw rotate, the support modules move along the support plate to clean dirt from the surface of the pipe.

[0008] Preferably, a ranging terminal is fixed on the side of the positioning block near the main side plate, and a laser ranging sensor is fixed on the main side plate near the linkage rack. The laser ranging sensor is used to detect the distance between itself and the ranging terminal.

[0009] By adopting the above technical solution, the positioning block can be moved by the transmission of the conveyor belt. The movement of the positioning block can be used to detect the distance to the ranging terminal by the laser ranging sensor. When the distance to the ranging terminal is close, the corresponding limit module is controlled to release and reset.

[0010] Preferably, the support module includes a support plate installed inside the support plate, and a positioning frame is fixed on the support plate. Rubber blocks are embedded on the front and rear sides of the support plate, and the sides of the rubber blocks are provided with extrusion strips fixed to the support plate. The rubber blocks are connected to each other through air pipes and rubber elastic elements inside the positioning frame, and a cleaning cloth is installed on the inner surface of the rubber elastic elements.

[0011] By adopting the above technical solution, when the support plate moves, the rubber blocks on its front and rear sides can be squeezed against the extrusion strip, so that the airflow inside the rubber blocks can enter the interior of the rubber elastic element through the air supply pipe, and the expansion of the rubber elastic element can fully fit the surface of the round or square tube.

[0012] Preferably, the outer wall of the support plate and the inner wall of the support plate are in contact with each other, and the support plate can slide inside the support plate. The cross-section of the support plate is rectangular, and the middle part of the support plate is threadedly connected to the transmission screw.

[0013] By adopting the above technical solution, the outer wall of the support plate and the inner wall of the support plate are closely fitted together, thereby preventing the support plate from rotating synchronously with the transmission screw.

[0014] Preferably, both the rubber block and the rubber elastic element are hollow, and the inner surface of the rubber elastic element is bonded to the cleaning cloth. When the rubber block is compressed, the airflow inside can enter the interior of the rubber elastic element through the air supply pipe.

[0015] By adopting the above technical solution, the cleaning cloth is bonded and fixed to the rubber elastic element, making it convenient to replace the cleaning cloth when it becomes severely worn.

[0016] Preferably, the first limiting module and the second limiting module have the same structure, and the first limiting module includes an electric telescopic rod installed on the support plate, the telescopic end of the electric telescopic rod is fixed with a clamping block, and an elastic pad is installed on the side of the clamping block that contacts the pipe.

[0017] By adopting the above technical solution, the elastic pad on the clamping block can be used to wrap around pipes of different shapes when in contact with the surface of the pipe, thereby increasing the contact area with pipes of different shapes.

[0018] Preferably, a guide rod is fixed on the side of the positioning frame near the main side plate, and a striking block is installed on the guide rod. The striking block is connected to the end of the guide rod through an auxiliary spring. A rod body is fixed on the side of the striking block near the main side plate, and a first magnetic block is connected to the end of the rod body. A second magnetic block is fixed at the lower end of the main side plate.

[0019] By adopting the above technical solution, the auxiliary spring can be used to reset and rebound the striking block after it moves on the guide rod.

[0020] Preferably, the striking block is in contact with the positioning frame in the initial state, and the striking block can slide on the guide rod.

[0021] By adopting the above technical solution, the positioning frame can be impacted by the reciprocating movement of the striking block on the guide rod, and the vibration generated by the impact can shake off some of the impurities attached to the cleaning cloth.

[0022] Preferably, the first magnetic block on the striking block rod and the second magnetic block at the lower end of the main side plate have opposite magnetic properties, and multiple second magnetic blocks are evenly distributed at the lower end of the main side plate.

[0023] By adopting the above technical solution, the striking block can be made to move back and forth by the magnetic force of the first and second magnetic blocks.

[0024] Another technical solution provided by the present invention is a method for conveying tubular materials in a tube conveying production line for co-plating of round and square tubes, comprising the following steps:

[0025] Step 1: Place the pipe on the support plate. The support plate inside the support plate supports both ends of the pipe. At the same time, activate the electric telescopic rod. The opening of the electric telescopic rod causes the clamping block to clamp the pipe. The surface of the clamping block is provided with an elastic pad. The elastic deformation of the elastic pad makes it come into contact with the surface of the pipe, thereby limiting and clamping the square or round pipe.

[0026] Step 2: When the drive roller rotates, the conveyor belt can carry out normal transmission, thereby realizing the automatic conveying of the pipes to the subsequent galvanizing station. When the conveyor belt is running, the positioning block also moves synchronously. After the positioning block moves, the ranging terminal on the surface and the laser ranging sensor approach each other. At this time, the laser ranging sensor on the left main side plate transmits the signal to the control module. The control module resets the electric telescopic rod on the first limit module. The main gear and the linkage rack on the inner side of the support plate mesh with each other. At this time, the main gear drives the transmission screw to rotate. The rotation of the transmission screw can move the threaded support plate towards the center of the support plate. The movement of the support plate cleans the adhering substances on the pipe surface under the action of the cleaning cloth on the inner side of the rubber elastic element. When the conveyor belt continues to transmit, after the main gear and the linkage rack disengage, the transmission screw resets and reverses under the action of the torsion spring, so that the support plate is reset and waiting for the next cleaning work.

[0027] Step 3: Because the linkage racks fixed on the left and right main side plates are staggered, when the support plate on one side inside the support plate moves and resets, the electric telescopic rod reopens and continues to clamp the pipe using the clamping block. At the same time, the ranging terminal on the positioning block on the other side approaches the laser ranging sensor on the right main side plate. The laser ranging sensor transmits the signal to the control module, which resets the electric telescopic rod on its second limit module. Then, the main gear meshes with and disengages from the linkage rack. The other half of the pipe surface is cleaned in the same way to ensure the cleanliness of the pipe surface during subsequent galvanizing. This integrates conveying and cleaning into one, simplifying the pipe galvanizing production line process.

[0028] Step 4: After the pipe is delivered to the position, as the conveyor belt continues to run, the lifting unit located above the conveyor belt is moved to the bottom. When the first magnetic block at the end of the striking block on the side of the positioning frame approaches the second magnetic block below the main side plate, the magnetic attraction force allows the striking block to move away from the positioning frame. As the conveyor belt transports the pipe, when the first and second magnetic blocks at the end of the striking block move away from each other, the striking block resets and rebounds under the action of the auxiliary spring. The rebounding striking block strikes the positioning frame, and the vibration generated by the strike can shake and clean the impurities attached to the inner cleaning cloth of the rubber elastic element.

[0029] Compared with the prior art, the beneficial effects of the present invention are: the pipe conveying device and conveying method for the co-plating production line of round and square tubes, by setting an elastic element on the limiting component, utilizes the elastic deformation of the elastic element to adapt to the fixing of pipes of different shapes, and at the same time, facilitates the cleaning of impurities attached to the surface of the pipes during the conveying process.

[0030] 1. It is equipped with a first limiting module and a second limiting module. The support plate on the support plate can be used to support the end of the pipe. At the same time, the elastic deformation of the elastic pads on the first and second limiting modules can be used to conform to the surface deformation of the square or round pipe, thereby increasing the contact area with the surface of pipes of different shapes and improving the stability of pipe positioning.

[0031] 2. It is equipped with a linkage rack. Through the intermittent contact and disengagement between the main gear and the linkage rack, the transmission screw can be reciprocated under the action of the torsion spring. The rotation of the transmission screw can cause the threaded support plate to reciprocate. The reciprocating movement of the support plate can then be used to wipe the dirt on the surface of the pipe with the cleaning cloth on the inner surface of the rubber elastic element.

[0032] 3. Equipped with rubber blocks, when the support plate moves inside the support plate, the rubber blocks on the inner side of the support plate can come into contact with the extrusion strip. The extrusion strip squeezes the rubber blocks, allowing the airflow inside the rubber blocks to enter the interior of the rubber elastic element through the air supply pipe. The expansion of the rubber elastic element after inflation allows the cleaning cloth to adhere to and wrap around the outer surface of pipes of different shapes. Afterwards, when moving, the cleaning cloth can improve the cleaning effect on the surface dirt of the pipe. Because the longitudinal section of the extrusion strip is a straight rectangular structure, the extrusion strip can apply a constant extrusion force to the rubber blocks when the support plate moves inside the support plate.

[0033] 4. It is equipped with a striking block. The lifting unit located above can be moved to the lower position by the transmission of the conveyor belt. By moving the first and second magnetic blocks at the end of the striking block rod away from each other, the striking block can reciprocate to strike the positioning frame. The vibration generated by striking the positioning frame can shake off and clean the impurities attached to the cleaning cloth. Attached Figure Description

[0034] Figure 1 This is a frontal perspective view of the present invention;

[0035] Figure 2 This is a three-dimensional structural diagram of the back of the present invention;

[0036] Figure 3 This is a schematic diagram of the main side plate and linkage rack structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the positioning block and ranging terminal structure of the present invention;

[0038] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0039] Figure 6 This is a schematic diagram of the transmission lead screw and main gear structure of the present invention;

[0040] Figure 7 This is a schematic diagram of the support plate and rubber block structure of the present invention;

[0041] Figure 8 This is a schematic diagram of the rubber block and rubber elastic element structure of the present invention;

[0042] Figure 9 For the present invention Figure 2 Enlarged structural diagram at point B.

[0043] In the diagram: 1. Main side plate; 2. Transmission roller; 3. Conveyor belt; 4. Lifting unit; 5. Positioning block; 6. Support plate; 7. Support module; 701. Support plate; 702. Positioning frame; 703. Rubber block; 704. Extrusion strip; 705. Air supply pipe; 706. Rubber elastic element; 8. First limit module; 9. Second limit module; 10. Electric telescopic rod; 11. Clamping block; 12. Elastic pad; 13. Transmission screw; 14. Main gear; 15. Distance measuring terminal; 16. Laser distance measuring sensor; 17. Linkage rack; 18. Guide rod; 19. Impact block; 20. Auxiliary spring; 21. First magnetic block; 22. Second magnetic block. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1: Please refer to Figures 1-9Existing conveying devices, when conveying pipes, use multiple baffles on the conveyor belt to ensure pipe stability, placing the pipes in the gaps between adjacent baffles for conveying. However, in actual processing, pipes have cross-sections that include not only round pipes but also square pipes. The fixed-shape baffle gaps are not convenient for accommodating pipes of different shapes. To solve this technical problem, this embodiment discloses the following technical content: a pipe conveying device for a round and square pipe co-plating production line, including two main side plates 1 and a transmission roller 2 rotatably installed between the two main side plates 1. Conveyor belts 3 are sleeved on both the left and right ends of the transmission roller 2. Lifting units 4 are installed on the conveyor belts 3 sleeved on both the left and right ends of the transmission roller 2, and the lifting units 4 include components installed on... Positioning blocks 5 are mounted on the conveyor belt 3. A support plate 6 is fixed between two positioning blocks 5. Two support modules 7 are installed on the support plate 6 to support both ends of the pipe. A first limiting module 8 and a second limiting module 9 are installed on the support plate 6. The first limiting module 8 and the second limiting module 9 are used to limit the movement of round or square pipes. The support module 7 is mounted on the transmission screw 13. A main gear 14 is keyed to the transmission screw 13. The transmission screw 13 and the support plate 6 are rotatably connected. A torsion spring providing a reset force is provided on the outer side of the end of the transmission screw 13. A staggered linkage rack 17 is fixed on the two main side plates 1. The linkage rack 17 is used to control the rotation of the main gear 14 that it contacts. The main gear 14 and the transmission screw 1 After rotation, the support module 7 moves along the support plate 6 to clean the dirt on the pipe surface. A ranging terminal 15 is fixed to the side of the positioning block 5 near the main side plate 1, and a laser ranging sensor 16 is fixed to the main side plate 1 near the linkage rack 17. The laser ranging sensor 16 is used to detect the distance between itself and the ranging terminal 15. The support module 7 includes a support plate 701 installed inside the support plate 6, and a positioning frame 702 is fixed to the support plate 701. Rubber blocks 703 are embedded on the front and rear sides of the support plate 701, and extrusion strips 704 are fixed to the sides of the rubber blocks 703 on the support plate 6. The rubber blocks 703 are connected to each other via an air supply pipe 705 and a rubber elastic element 706 inside the positioning frame 702. The inner surface of the support plate 701 is fitted with a cleaning cloth. The outer wall of the support plate 701 and the inner wall of the support plate 6 are in contact with each other, and the support plate 701 can slide inside the support plate 6. The cross-section of the support plate 701 is rectangular, and the middle part of the support plate 701 is threadedly connected to the transmission screw 13. The interiors of the rubber block 703 and the rubber elastic element 706 are both hollow structures, and the inner surface of the rubber elastic element 706 is bonded to the cleaning cloth. When the rubber block 703 is compressed, the airflow inside can enter the interior of the rubber elastic element 706 through the air supply pipe 705. The first limiting module 8 and the second limiting module 9 have the same structure, and the first limiting module 8 includes an electric telescopic rod 10 installed on the support plate 6. The telescopic end of the electric telescopic rod 10 is fixed with a clamping block 11.An elastic pad 12 is installed on the side of the clamping block 11 that contacts the pipe.

[0046] The pipe is placed on the support plate 6, and the support plate 701 on the inner side of the support plate 6 supports both ends of the pipe. At the same time, the electric telescopic rod 10 is activated, and the clamping block 11 clamps the pipe. The surface of the clamping block 11 is provided with an elastic pad 12. The elastic deformation of the elastic pad 12 makes it come into contact with the surface of the pipe, thereby limiting and clamping the square or round pipe. When the transmission roller 2 rotates, the conveyor belt 3 can carry out normal transmission, thereby realizing the automatic conveying of the pipe, so as to transport the pipe to the subsequent galvanizing station. When the conveyor belt 3 is running, the positioning block 5 also moves synchronously. After the positioning block 5 moves, the ranging terminal 15 on its surface and the laser ranging sensor 16 approach each other. At this time, the left The laser rangefinder 16 on the main side plate 1 transmits a signal to the control module, which then resets the electric telescopic rod 10 on the first limit module 8. The main gear 14 on the inner side of the support plate 6 meshes with the linkage rack 17. At this time, the main gear 14 drives the transmission screw 13 to rotate. The rotation of the transmission screw 13 allows the threaded support plate 701 to move towards the center of the support plate 6. After the support plate 701 moves, the rubber block 703 embedded in it contacts the extrusion strip 704 on the inner side of the support plate 6. The extrusion strip 704 extrudes the rubber block 703, allowing the airflow inside the rubber block 703 to enter the rubber elastic element 706 through the air supply pipe 705, thus inflating the rubber elastic element 706. The subsequent expansion allows the cleaning cloth to fully wrap around the outer surface of the square or round tube, facilitating thorough cleaning during subsequent movement. The movement of the support plate 701, combined with the cleaning cloth inside the rubber elastic element 706, cleans the surface of the pipe. When the conveyor belt 3 continues to transport, the main gear 14 disengages from the linkage rack 17, and the transmission screw 13, under the action of the torsion spring, resets and reverses, causing the support plate 701 to reset, awaiting the next cleaning operation. Because the linkage racks 17 fixed on the left and right main side plates 1 are misaligned, when the support plate 701 on one side of the support plate 6 moves and resets, the electric telescopic rod 10 reopens, using the clamping block 11 to continue clamping the pipe, while simultaneously the positioning block 5 on the other side... The ranging terminal 15 and the laser ranging sensor 16 on the right main side plate 1 approach each other. The laser ranging sensor 16 transmits a signal to the control module, which then resets the electric telescopic rod 10 on the second limit module 9. Next, the main gear 14 engages and disengages with the linkage rack 17, using the same method to clean the other half of the pipe surface. This ensures the cleanliness of the pipe surface during subsequent galvanizing, integrating conveying and cleaning into one process, simplifying the pipe galvanizing production line. During the cleaning process, the first limit module 8 and the second limit module 9 intermittently release the pipe from its fixation, thus preventing obstruction or hindering the movement of cleaning components on parts of the pipe surface during limiting, without affecting the stability of pipe conveying.This results in the cleaning components not being able to clean completely.

[0047] Example 2: The technical content disclosed in this example is a further improvement based on Example 1 described above. The following technical content is disclosed in this example: Figure 2 , Figure 4 , Figure 7 and Figure 9 As shown, a guide rod 18 is fixed on the side of the positioning frame 702 near the main side plate 1, and a striking block 19 is installed on the guide rod 18. The striking block 19 is connected to the end of the guide rod 18 through an auxiliary spring 20. A rod body is fixed on the side of the striking block 19 near the main side plate 1, and a first magnetic block 21 is connected to the end of the rod body. A second magnetic block 22 is fixed at the lower end of the main side plate 1. In the initial state, the striking block 19 is in contact with the positioning frame 702, and the striking block 19 can slide on the guide rod 18. The first magnetic block 21 on the rod body of the striking block 19 and the second magnetic block 22 at the lower end of the main side plate 1 have opposite magnetic properties, and multiple second magnetic blocks 22 are evenly distributed at the lower end of the main side plate 1.

[0048] When the pipe is delivered to the position, as the conveyor belt 3 continues to operate, the lifting unit 4 located above the conveyor belt 3 is moved to the lower position. When the first magnetic block 21 at the end of the rod of the striking block 19 on the side of the positioning frame 702 approaches each other, the magnetic attraction force allows the striking block 19 to move away from the positioning frame 702. When the conveyor belt 3 is transmitting, the first magnetic block 21 and the second magnetic block 22 at the end of the rod of the striking block 19 move away from each other. Under the action of the auxiliary spring 20, the striking block 19 resets and rebounds. After rebounding, the striking block 19 strikes the positioning frame 702. The vibration generated by the strike can shake and clean the impurities attached to the cleaning cloth inside the rubber elastic element 706.

[0049] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe conveying device for a round and square tube co-plating production line, comprising two main side plates (1) and a transmission roller (2) rotatably mounted between the two main side plates (1), wherein conveyor belts (3) are sleeved on both the left and right ends of the transmission roller (2), characterized in that: Lifting units (4) are installed on the conveyor belts (3) sleeved at both ends of the transmission roller (2), and the lifting unit (4) includes positioning blocks (5) installed on the conveyor belts (3). A support plate (6) is fixed between the two positioning blocks (5). Two support modules (7) are installed on the support plate (6) to support both ends of the pipe respectively. A first limiting module (8) and a second limiting module (9) are installed on the support plate (6), and the first limiting module (8) and the second limiting module (9) are used to adapt to the limiting of round or square pipes. 7) Installed on the transmission screw (13), and the transmission screw (13) is keyed to the main gear (14). The transmission screw (13) and the support plate (6) are rotatably connected. A torsion spring that provides a reset elastic force is provided on the outer side of the end of the transmission screw (13). The two main side plates (1) on the left and right are fixed with staggered linkage racks (17). The linkage racks (17) are used to control the rotation of the main gear (14) in contact with it. After the main gear (14) and the transmission screw (13) rotate, the support module (7) moves along the support plate (6) to clean the dirt on the surface of the pipe. The support module (7) includes a support plate (701) installed on the inner side of the support plate (6), and a positioning frame (702) is fixed on the support plate (701). Rubber blocks (703) are embedded on the front and rear sides of the support plate (701), and the sides of the rubber blocks (703) are provided with extrusion strips (704) fixed on the support plate (6). The rubber blocks (703) are connected to the rubber elastic element (706) inside the positioning frame (702) through the air pipe (705), and a cleaning cloth is installed on the inner surface of the rubber elastic element (706). The interior of both the rubber block (703) and the rubber elastic element (706) is hollow, and the inner surface of the rubber elastic element (706) is bonded to the cleaning cloth. After the support plate (701) moves, the rubber block (703) embedded on it comes into contact with the extrusion strip (704) on the inner side of the support plate (6). The extrusion strip (704) can extrude the rubber block (703), so that the airflow inside the rubber block (703) can enter the interior of the rubber elastic element (706) through the air supply pipe (705). Through the expansion of the rubber elastic element (706) after inflation, the cleaning cloth can be fully wrapped around the outer surface of the round square tube.

2. The pipe conveying device for a round and square tube co-plating production line according to claim 1, characterized in that: The positioning block (5) has a ranging terminal (15) fixed on the side near the main side plate (1), and a laser ranging sensor (16) is fixed on the main side plate (1) near the linkage rack (17). The laser ranging sensor (16) is used to detect the distance between itself and the ranging terminal (15).

3. The pipe conveying device for a round and square tube co-plating production line according to claim 2, characterized in that: The outer wall of the support plate (701) and the inner wall of the support plate (6) are in contact with each other, and the support plate (701) can slide inside the support plate (6). The cross-section of the support plate (701) is set to be rectangular, and the middle part of the support plate (701) is threadedly connected to the transmission screw (13).

4. A pipe conveying device for a round and square tube co-plating production line according to claim 3, characterized in that: The first limiting module (8) and the second limiting module (9) have the same structure. The first limiting module (8) includes an electric telescopic rod (10) installed on the support plate (6). The telescopic end of the electric telescopic rod (10) is fixed with a clamping block (11). An elastic pad (12) is installed on the side of the clamping block (11) that contacts the pipe.

5. A pipe conveying device for a round and square tube co-plating production line according to claim 4, characterized in that: The positioning frame (702) has a guide rod (18) fixed on the side near the main side plate (1), and a striking block (19) is installed on the guide rod (18). The striking block (19) is connected to the end of the guide rod (18) through an auxiliary spring (20). The striking block (19) has a rod body fixed on the side near the main side plate (1), and a first magnetic block (21) is connected to the end of the rod body. A second magnetic block (22) is fixed at the lower end of the main side plate (1).

6. A pipe conveying device for a round and square tube co-plating production line according to claim 5, characterized in that: The striking block (19) is in contact with the positioning frame (702) in the initial state, and the striking block (19) can slide on the guide rod (18).

7. A pipe conveying device for a round and square tube co-plating production line according to claim 6, characterized in that: The first magnetic block (21) on the rod of the striking block (19) and the second magnetic block (22) at the lower end of the main side plate (1) have opposite magnetic properties, and multiple second magnetic blocks (22) are evenly distributed at the lower end of the main side plate (1).

8. The conveying method of the pipe conveying device for a round and square tube co-plating production line according to claim 7, characterized in that, Includes the following steps: S1: Place the pipe on the support plate (6), and support the two ends of the pipe through the support plate (701) on the inner side of the support plate (6). At the same time, open the electric telescopic rod (10). The opening of the electric telescopic rod (10) allows the clamping block (11) to clamp the pipe. At the same time, the surface of the clamping block (11) is provided with an elastic pad (12). The elastic deformation of the elastic pad (12) is used to make it fit and contact with the surface of the pipe, thereby adapting to the limit clamping of square or round pipes. S2: When the transmission roller (2) rotates, the conveyor belt (3) can carry out normal transmission so as to transport the pipe to the subsequent galvanizing station. When the conveyor belt (3) is running, the positioning block (5) also moves synchronously. After the positioning block (5) moves, the ranging terminal (15) on the surface and the laser ranging sensor (16) approach each other. The laser ranging sensor (16) on the left main side plate (1) transmits the signal to the control module. The control module resets the electric telescopic rod (10) on the first limit module (8). Through the meshing and disengagement of the main gear (14) and the linkage rack (17), the support plate (701) on the transmission screw (13) can move back and forth so as to clean the adhering substances on the surface of the pipe by using the cleaning cloth inside the rubber elastic element (706). S3: Because the linkage racks (17) fixed on the left and right main side plates (1) are misaligned, when the support plate (701) on one side of the support plate (6) moves and resets, the electric telescopic rod (10) reopens and the clamping block (11) continues to clamp the pipe. Then, the other half of the pipe surface is cleaned in the same way as in S2 above, so as to ensure the cleanliness of the surface of the pipe during galvanizing. The conveying and cleaning are integrated into one, simplifying the pipe galvanizing production line process. S4: When the pipe is delivered to the position, the conveyor belt (3) continues to run. The lifting unit (4) located above the conveyor belt (3) is moved to the bottom. By changing the distance between the first magnetic block (21) at the end of the striking block (19) and the second magnetic block (22) below the main side plate (1), the striking block (19) can move back and forth under the action of the auxiliary spring (20). The striking block (19) after the reset and rebound can strike the positioning frame (702). The vibration generated by the strike can shake and clean the impurities attached to the inner cleaning cloth of the rubber elastic element (706).

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