An automatic splicing PE pipe pulling machine

Abstract

The present invention relates to the technical field of pipe traction, and in particular to an automatic PE pipe traction machine. The present invention comprises a base and a control panel, the base is provided with a control panel, the base is provided with a sliding frame slidably, the base is provided with a translation mechanism, the translation mechanism is used to drive the sliding frame to move on the base, a multi-section electric push rod is provided on the top of the sliding frame, and a traction head is connected to the telescopic rod of the multi-section electric push rod. The present invention can use the multi-section electric push rod to drive the traction head to automatically pass through the vacuum sizing cooling box through the cooperation of the multi-section electric push rod, the traction head, the cone, the laser rangefinder, the airbag, the movable frame, the semi-circular ball, the inflation mechanism, the retracting and expanding mechanism and the sealing mechanism, and then the traction head and the PE pipe are automatically connected and fixed by the airbag, the movable frame and the semi-circular ball, and then the traction head is driven to move by the multi-section electric push rod, so that the PE pipe can be automatically pulled, which is not only convenient to operate, but also time-saving and labor-saving, and has high efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pipe traction, in particular to an automatic splicing PE pipe traction machine. Background Art

[0002] With the development of the plastics industry, polyethylene (PE) pipes have been widely used in water supply and drainage, gas transmission, agricultural irrigation and other fields due to their excellent corrosion resistance, good flexibility and long service life. However, in the production process of PE pipes, especially in the extrusion molding stage, the traditional production process has some problems that need to be solved urgently, among which the most prominent is the traction link of the pipe.

[0003] On a traditional PE pipe extrusion production line, after the PE pipe is extruded from the outlet of the extruder, it is necessary to manually use a traction tube to pass through a vacuum sizing cooling box. After the traction tube passes through the vacuum sizing cooling box, the operator manually fixes the newly extruded PE pipe and the end of the traction tube together, and then the traction tube is used to pull the newly extruded PE pipe through the vacuum sizing cooling box. In this way, the traction of the PE pipe is completed; however, in the above traction operation, not only is it necessary to manually pass the traction tube through the vacuum sizing cooling box, but the operator is also required to manually fix the newly extruded PE pipe and the end of the traction tube together. This step is not only cumbersome, but also time-consuming and labor-intensive, and easily affects the production efficiency of the product. Summary of the invention

[0004] In view of this, the present invention provides an automatic splicing PE pipe traction machine, which can solve the shortcomings of the traditional PE pipe extrusion production line, which not only requires manual labor to pass the traction pipe through the vacuum sizing cooling box, but also requires the operator to manually fix the newly extruded PE pipe and the end of the traction pipe together, resulting in troublesome operation, time-consuming and labor-intensive, and easily affecting the product production efficiency.

[0005] The technical implementation scheme of the present invention is: an automatic PE pipe traction machine, including a base and a control panel, the base is equipped with a control panel, the base is slidably provided with a sliding frame, the base is provided with a translation mechanism, the translation mechanism is used to drive the sliding frame to move on the base, a multi-section electric push rod is installed on the top of the sliding frame, a traction head is connected to the telescopic rod of the multi-section electric push rod, a first servo motor is connected to the side of the traction head, a cone is rotatably installed on the side of the traction head, the first servo motor is located on the inner side of the cone, and the output shaft of the first servo motor is connected to the cone A laser rangefinder is installed on the frustum, an airbag is rotatably installed on the outside of the frustum, an inflation mechanism for inflating the airbag is arranged in the traction head, and the airbag is used to support the inner side of the PE pipe after being inflated, movable frames are slidingly arranged at intervals on the traction head, and the movable frame is used to press the outer side of the PE pipe, and a semi-circular ball is connected to the movable frame, and the semi-circular ball is used to embed the outer side of the PE pipe, a retraction and expansion mechanism is arranged in the traction head, and the retraction and expansion mechanism is used to drive the movable frame on the traction head to move, and a sealing mechanism for sealing the vacuum sizing cooling box is arranged on the control panel.

[0006] As a preferred technical solution of the present invention, the translation mechanism includes a first reduction motor and a one-way screw. The first reduction motor is installed on the side of the base, and the one-way screw is rotatably installed on the base. The end of the one-way screw is connected to the output shaft of the first reduction motor, and the sliding frame is threadedly connected to the one-way screw.

[0007] As a preferred technical solution of the present invention, the inflation mechanism includes an air pump and an air pipe, a vent hole is opened on the traction head, an air pump is installed in the traction head, and the air outlet of the air pump is connected to the airbag through the air pipe.

[0008] As a preferred technical solution of the present invention, the retracting and unfolding mechanism includes a second servo motor and a turntable. The second servo motor is installed in the traction head. The output shaft of the second servo motor is connected to the turntable. The turntable is provided with arc grooves at intervals. The movable frame moves in the arc grooves. The turntable is driven to rotate by the second servo motor, so that the turntable squeezes the movable frame in the arc groove to move.

[0009] As a preferred technical solution of the present invention, the sealing mechanism includes a slide plate, a closing plate, a telescopic bellows, a connecting ring and a locking piece. A slide plate is slidably arranged on the sliding frame, and a closing plate is connected to the slide plate. The closing plate is used to seal the vacuum sizing cooling box. One end of the telescopic bellows is connected to the multi-section electric push rod, and the other end of the telescopic bellows is connected to the closing plate. The telescopic rod of the multi-section electric push rod is located on the inner side of the telescopic bellows. A connecting ring is installed on the side of the traction head. A locking piece is arranged between the connecting ring and the closing plate. The locking piece is used to clamp the connecting ring on the closing plate.

[0010] As a preferred technical solution of the present invention, the locking member includes a locking bead and a spring. The locking bead is slidingly arranged at intervals on the outside of the connecting ring. A spring is connected between the locking bead and the connecting ring. The closing plate is provided with slots adapted to the locking bead at intervals, and the locking bead is inserted into the slots of the closing plate.

[0011] As a preferred technical solution of the present invention, it also includes a conveying mechanism, which includes a guide frame, a movable rod, a driving member, a connecting plate, a support plate, a roller, an electric roller, a cylinder, a connecting frame and a limiting wheel. The sliding frame is connected to the guide frame, and the guide frame is symmetrically and slidingly provided with movable rods. The guide frame is provided with a driving member, and the driving member is used to drive the movable rod to slide on the guide frame. The movable rod is symmetrically and rotatably connected with connecting plates, and the connecting plates on the two movable rods are cross-distributed. Support plates are rotatably provided between the four connecting plates, and rollers are rotatably installed on the support plates at intervals. The support plate is also installed with an electric roller, and a cylinder is installed on the side of the support plate. The telescopic rod of the cylinder is connected to the connecting frame, and the limiting wheel is rotatably installed on the connecting frame, and the limiting wheel is located directly above the electric roller.

[0012] As a preferred technical solution of the present invention, the driving part includes a second reduction motor and a bidirectional screw. The second reduction motor is installed on the guide rail frame. The bidirectional screw is rotatably installed on the guide rail frame. The end of the bidirectional screw is connected to the output shaft of the second reduction motor, and two movable rods are respectively threadedly connected to the two ends of the bidirectional screw.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention can utilize the cooperation of a multi-section electric push rod, a traction head, a cone, a laser rangefinder, an airbag, a movable frame, a semi-circular ball, an inflation mechanism, a retracting and expanding mechanism and a sealing mechanism to drive the traction head to automatically pass through a vacuum sizing cooling box by utilizing the multi-section electric push rod, and then automatically connect and fix the traction head to the PE pipe by the airbag, the movable frame and the semi-circular ball, and then drive the traction head to move by the multi-section electric push rod, so as to realize automatic traction of the PE pipe, which is not only convenient to operate, but also time-saving and labor-saving, and has high efficiency.

[0014] 2. The present invention provides a sliding frame and a translation mechanism, which can drive the sliding frame, the multi-section electric push rod and the traction head to move through the translation mechanism after the traction head completes traction of the PE pipe, so that the multi-section electric push rod and the traction head do not affect the subsequent transportation of the PE pipe.

[0015] 3. The present invention provides a conveying mechanism, and can use an electric roller, a roller and a limiting wheel to convey the pulled PE pipe, thereby facilitating the operator to perform subsequent conveying operations on the PE pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the translation mechanism of the present invention.

[0018] Figure 3 It is a cross-sectional view of the traction head and the frustum of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the inflation mechanism and the retraction and expansion mechanism of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the folding and unfolding mechanism of the present invention.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the sealing mechanism of the present invention.

[0022] Figure 7 It is a structural separation diagram of the sealing mechanism of the present invention.

[0023] Figure 8 It is a cross-sectional view of the sealing mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the base, the sliding frame and the guide rail frame of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the conveying mechanism of the present invention.

[0026] Names of the numbers in the figure: 1. base, 2. control panel, 3. sliding frame, 401. first reduction motor, 402. one-way screw, 5. multi-section electric push rod, 6. traction head, 7. first servo motor, 8. cone, 9. laser rangefinder, 10. air bag, 1101. vent, 1102. vacuum pump, 1103. air pipe, 12. movable frame, 13. semi-circular ball, 1401. second servo motor, 1402. turntable, 140 3. Arc groove, 1501. Slide plate, 1502. Closing plate, 1503. Telescopic bellows, 1504. Connecting ring, 1505. Card bead, 1506. Spring, 1507. Card groove, 16. Guide rail frame, 17. Movable rod, 1801. Second reduction motor, 1802. Bidirectional screw rod, 19. Connecting plate, 20. Support plate, 21. Roller, 22. Electric roller, 23. Cylinder, 24. Connecting frame, 25. Limiting wheel. DETAILED DESCRIPTION

[0027] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] Embodiment: An automatic splicing PE pipe pulling machine, see Figure 1-Figure 8 As shown, it includes a base 1 and a control console 2; the control console 2 is installed on the front middle side of the top of the base 1; it also includes a sliding frame 3, a multi-section electric push rod 5, a traction head 6, a first servo motor 7, a cone 8, a laser rangefinder 9, an airbag 10, a movable frame 12, a semicircular ball 13, a translation mechanism, an inflation mechanism, a retracting and unfolding mechanism and a sealing mechanism; the sliding frame 3 is slidably arranged on the top of the base 1; the base 1 is provided with a translation mechanism, and the translation mechanism is used to drive the sliding frame 3 to move on the base 1; the top of the sliding frame 3 is provided with a multi-section electric push rod 5, and the multi-section electric push rod 5 is electrically connected to the control console 2; A traction head 6 is connected to the telescopic rod of the multi-section electric push rod 5, and the inner side of the traction head 6 is a hollow structure; a first servo motor 7 is connected to the middle of the right side of the traction head 6, and the first servo motor 7 is electrically connected to the control console 2; a frustum 8 is also rotatably installed on the right side of the traction head 6, and the outer diameter of the frustum 8 is consistent with the outer diameter of the PE pipe. The first servo motor 7 is located on the inner side of the frustum 8, and the output shaft of the first servo motor 7 is connected to the inner side of the frustum 8; a laser rangefinder 9 is installed in the middle of the right side of the frustum 8, and the laser rangefinder 9 is electrically connected to the control console 2. The laser rangefinder 9 is provided with three preset values, and the first preset value is 1. The first preset value enables the cone 8 to be in contact with the PE pipe, the second preset value enables the left end of the PE pipe to pass through the vacuum sizing cooling box, and the third preset value is the initial position of the laser rangefinder 9; an airbag 10 is rotatably mounted on the outside of the cone 8; an inflation mechanism for inflating the airbag 10 is provided in the traction head 6, and the airbag 10 is used to support the inner side of the PE pipe after inflation; three movable frames 12 are slidably arranged at intervals on the outside of the traction head 6, and three grooves adapted to the movable frames 12 are also spaced apart on the outside of the traction head 6, so that after the movable frame 12 is inserted into the groove, the outer side of the movable frame 12 can contact with the outside of the PE pipe. The outer side of the traction head 6 is flush, and the movable frame 12 is used to press the outer side of the PE pipe; two semi-circular balls 13 are connected to the side where the three movable frames 12 are close to each other, and the semi-circular balls 13 are used to embed into the outer side of the PE pipe. When the multi-section electric push rod 5 drives the traction head 6 to move, the traction head 6 can drive the PE pipe to move synchronously through the movable frame 12 and the semi-circular balls 13, thereby pulling the PE pipe; a retracting and unfolding mechanism is arranged in the traction head 6, and the retracting and unfolding mechanism is used to drive the movable frame 12 on the traction head 6 to move; a sealing mechanism for sealing the vacuum sizing cooling box is arranged on the control console 2.

[0029] See also Figure 2 As shown, the translation mechanism includes a first reduction motor 401 and a one-way screw 402; the first reduction motor 401 is installed in the middle of the front side of the base 1, and the first reduction motor 401 is electrically connected to the control console 2; a one-way screw 402 is rotatably installed in the middle of the base 1, and the front end of the one-way screw 402 is connected to the output shaft of the first reduction motor 401, and the sliding frame 3 is threadedly connected to the one-way screw 402.

[0030] See also Figure 3 and Figure 4 As shown, the inflation mechanism includes an air pump 1102 and an air pipe 1103; air holes 1101 are spaced apart on the left side of the traction head 6; an air pump 1102 is installed on the right side of the traction head 6, and the air pump 1102 is electrically connected to the control console 2; the air outlet of the air pump 1102 is connected to the airbag 10 through the air pipe 1103.

[0031] See also Figure 4 and Figure 5 As shown, the retracting and unfolding mechanism includes a second servo motor 1401 and a turntable 1402; the second servo motor 1401 is installed on the left side of the traction head 6, and the second servo motor 1401 is electrically connected to the control console 2; the turntable 1402 is connected to the output shaft of the second servo motor 1401; three groups of arc grooves 1403 are spaced apart on the turntable 1402, and the number of each group of arc grooves 1403 is two, and the two arc grooves 1403 of each group are distributed on the left and right, and the three movable frames 12 are respectively on The three movable frames 12 can move in the three sets of arc grooves 1403. When the second servo motor 1401 drives the turntable 1402 to rotate, the turntable 1402 will squeeze the movable frames 12 in the arc grooves 1403 to move toward the side close to each other, so that the three movable frames 12 can be folded. When the second servo motor 1401 drives the turntable 1402 to reverse, the turntable 1402 will squeeze the movable frames 12 in the arc grooves 1403 to move away from each other, so that the three movable frames 12 can be unfolded.

[0032] See also Figure 6-Figure 8As shown, the sealing mechanism includes a slide plate 1501, a closing plate 1502, a telescopic bellows 1503, a connecting ring 1504 and a positioning member; a slide plate 1501 is slidably arranged on the upper right side of the sliding frame 3; a closing plate 1502 is connected to the right side of the slide plate 1501, and the closing plate 1502 is used to seal the vacuum sizing cooling box; the left end of the telescopic bellows 1503 is connected to the multi-section electric push rod 5, the right end of the telescopic bellows 1503 is connected to the left side of the closing plate 1502, and the telescopic rod of the multi-section electric push rod 5 is located on the inner side of the telescopic bellows 1503; a connecting ring 1504 is installed on the left side of the traction head 6, and the connecting ring 1504 is installed on the left side of the traction head 6. There is a certain gap between the ring 1504 and the closing plate 1502 so that the air in the traction head 6 can communicate with the outside air through the vent 1101 and the gap; the locking member includes a locking bead 1505 and a spring 1506, and the locking bead 1505 is slidingly arranged at intervals on the outside of the connecting ring 1504, and the spring 1506 is connected between the locking bead 1505 and the connecting ring 1504, and the closing plate 1502 is provided with slots 1507 adapted to the locking bead 1505 at intervals, and the locking bead 1505 is inserted into the slot 1507 of the closing plate 1502, and the locking member is used to clamp the connecting ring 1504 on the closing plate 1502.

[0033] When in use, the base 1 is installed on the left side of the vacuum sizing cooling box (machine positions from left to right: tractor, vacuum sizing cooling box, extruder), and then the PE pipe is extruded by the extruder for a specified distance, and then the laser rangefinder 9 is started by the control console 2, so that the laser rangefinder 9 emits a laser through the vacuum sizing cooling box and then fixes on the extruder, so that the laser rangefinder 9 continuously detects the distance between the laser rangefinder 9 and the extruder, and then the multi-section electric push rod 5 is controlled by the control console 2 to drive the tractor head 6 to move to the right, so that the tractor head 6 drives the first servo motor 7, frustum 8, laser rangefinder 9, connecting ring 1504, card bead 1505, closing plate 1502 and slide plate 1501 move to the right, during which the telescopic bellows 1503 will be extended, so that the traction head 6 drives the first servo motor 7, frustum 8, laser rangefinder 9 to enter the vacuum sizing cooling box. When the closing plate 1502 contacts the left side of the vacuum sizing cooling box, the closing plate 1502 will seal the left side of the vacuum sizing cooling box, and the left side of the vacuum sizing cooling box will block the closing plate 1502. When the connecting ring 1504 and When the card bead 1505 continues to move to the right into the vacuum sizing cooling box, the closing plate 1502 is blocked and cannot move further. The closing plate 1502 exerts a force on the card bead 1505 to move in the direction of the inner side of the connecting ring 1504, and the spring 1506 is compressed to make the card bead 1505 leave the card slot 1507. When the card bead 1505 is separated from the closing plate 1502, the spring 1506 returns to its original state, and the spring 1506 drives the card bead 1505 to move in the direction away from the inner side of the connecting ring 1504 and reset. Then, along with the traction head 6 and the upper The installed component will continue to move to the right after passing through the vacuum sizing cooling box until the cone 8 contacts the PE pipe on the extruder. When the laser rangefinder 9 detects that the distance between the cone and the extruder is equal to the first preset value, the laser rangefinder 9 will send a signal. After receiving the signal, the control console 2 will control the multi-section electric push rod 5 to drive the traction head 6 to stop moving, so that the first servo motor 7, the cone 8 and the laser rangefinder 9 stop together (at this time, the cone surface of the cone 8 just contacts the PE pipe on the extruder, and the laser rangefinder 9 and the airbag 10 enter the inner side of the PE pipe);

[0034] Then, the control console 2 controls the air pump 1102 to draw air into the air tube 1103 and the airbag 10, so that the airbag 10 expands, so that the airbag 10 is supported on the inner side of the PE pipe by expansion, and then the control console 2 controls the second servo motor 1401 to drive the turntable 1402 to rotate, so that the turntable 1402 squeezes the movable frames 12 in the arc groove 1403 to move toward the side close to each other, so that the three movable frames 12 are retracted, so that the three movable frames 12 press the outer side of the PE pipe, and the semicircular ball 13 on the movable frame 12 is embedded in the outer side of the PE pipe, so as to automatically connect and fix the traction head 6 and the PE pipe;

[0035] Then, the multi-section electric push rod 5 is controlled by the control console 2 to drive the traction head 6 to move to the left, so that the traction head 6 drives the first servo motor 7, the cone 8, the laser rangefinder 9, the connecting ring 1504 and the card bead 1505 to move to the left, so that the movable frame 12 and the semicircular ball 13 on the traction head 6 pull the PE pipe to move to the left, and the traction head 6, the first servo motor 7, the cone 8, the laser rangefinder 9, the connecting ring 1504, the card bead 1505 and the PE pipe will enter the vacuum sizing cooling box, and the PE pipe will also seal the right side of the vacuum sizing cooling box. After that, as the PE pipe passes through the vacuum sizing cooling box, the PE pipe can be cooled and shaped by the vacuum sizing cooling box. When the traction head 6, the first servo motor 7, the cone 8, the laser rangefinder 9, the connecting ring 1504, the card bead 1505 and the PE pipe are After the rangefinder 9, the connecting ring 1504 and the card bead 1505 move to the left and leave the vacuum sizing cooling box, the PE pipe will also pass through the left side of the vacuum sizing cooling box. At this time, the PE pipe will seal the left side of the vacuum sizing cooling box. During this period, when the card bead 1505 moves to the left and contacts with the closing plate 1502, the closing plate 1502 will squeeze the card bead 1505 again to move closer to the inner side of the connecting ring 1504, and the spring 1506 will be compressed. When the card bead 1505 is aligned with the card slot 1507, the spring 1506 returns to its original state, and the spring 1506 drives the card bead 1505 to move away from the inner side of the connecting ring 1504 and reset, so that the card bead 1505 is re-stuck in the card slot 1507, and then as the card bead 1505 moves to the left, the card bead 1505 will drive the closing plate 1502 and the slide plate 1501 to move to the left, so that the closing plate 1502 no longer seals the left side of the vacuum sizing cooling box. During this period, the telescopic bellows 1503 will be shortened. When the PE pipe passes through the left side of the vacuum sizing cooling box, the laser rangefinder 9 will detect that the distance between the extruder and the extruder is equal to the second preset value. The laser rangefinder 9 will send a signal. After receiving the signal, the control console 2 will control the multi-section electric push rod 5 to drive the traction head 6 to stop moving. Then the control console 2 will control the second servo motor 1401 to drive the turntable 1402 to reverse and reset, so that the turntable 1402 squeezes the movable frame 12 in the arc groove 1403 to move to the side away from each other and reset, so that the three movable frames 12 are unfolded. The three movable frames 12 are separated from the outside of the PE pipe, and the semicircular balls 13 on the movable frames 12 are moved away from the outside of the PE pipe. At the same time, the control panel 2 controls the vacuum pump 1102 to extract the air in the air tube 1103 and the airbag 10, so that the airbag 10 begins to shrink. At the same time, the control panel 2 controls the first servo motor 7 to drive the cone 8 to intermittently rotate forward and reverse by 30 degrees, so that the cone 8 is separated from the PE pipe by rotation to prevent the PE pipe from sticking to the cone 8. Then the control panel 2 controls the multi-section electric push rod 5 to drive the traction head 6 to move to the left and reset, so that the cone 8 is moved to the left and reset, thereby separating the cone 8 from the PE pipe and making the laser rangefinder 9 and the airbag 10 leave the inside of the PE pipe. When the traction head 6 moves to the left and resets,At this time, when the laser rangefinder 9 detects that the distance between it and the extruder is equal to the third preset value, the laser rangefinder 9 will send a signal. After receiving the signal, the control panel 2 will control the multi-section electric push rod 5 to drive the traction head 6 to stop moving. At the same time, the control panel 2 will control the first servo motor 7 to drive the cone 8 to stop rotating. In this way, the automatic traction of the PE pipe can be completed. After that, the operator controls the first reduction motor 401 through the control panel 2 to drive the one-way screw 402 to rotate, so that the one-way screw 402 drives the sliding frame 3, the multi-section electric push rod 5 and the traction head 6 to move forward, so that the multi-section electric push rod 5 and the traction head 6 do not affect the conveying of the PE pipe to the left. Then the operator guides the PE pipe to be conveyed to the left; finally, when all the PE pipes are conveyed to the left, the operator controls the first reduction motor 401 through the control panel 2 to drive the one-way screw 402 to reverse and reset, so that the one-way screw 402 drives the sliding frame 3, the multi-section electric push rod 5 and the traction head 6 to move backward and reset.

[0036] See also Fig. 9 and Fig.10 As shown, it also includes a conveying mechanism, which includes a guide frame 16, a movable rod 17, a driving member, a connecting plate 19, a support plate 20, a roller 21, an electric roller 22, a cylinder 23, a connecting frame 24 and a limiting wheel 25; the guide frame 16 is connected to the lower rear side of the sliding frame 3; the movable rod 17 is symmetrically slidably arranged on the guide frame 16; the driving member includes a second reduction motor 1801 and a bidirectional screw rod 1802, the second reduction motor 1801 is installed on the left side of the guide frame 16, the second reduction motor 1801 is electrically connected to the control console 2, the bidirectional screw rod 1802 is rotatably installed on the upper side of the guide frame 16, the left end of the bidirectional screw rod 1802 is connected to the output shaft of the second reduction motor 1801, and the two movable rods 17 are respectively connected to the control console 2. The two ends of the bidirectional screw rod 1802 are threadedly connected, and the driving part is used to drive the movable rod 17 to slide on the guide rail frame 16; the movable rod 17 is symmetrically connected to a connecting plate 19 for rotation front and back, and the connecting plates 19 on the two movable rods 17 are cross-distributed; a support plate 20 is rotatably arranged between the upper sides of the four connecting plates 19; rollers 21 are rotatably installed on the upper sides of the support plates 20; an electric roller 22 is installed on the upper right side of the support plate 20, and the electric roller 22 is electrically connected to the control console 2; a cylinder 23 is installed on the right rear side of the support plate 20, and the cylinder 23 is electrically connected to the control console 2; a connecting frame 24 is connected to the telescopic rod of the cylinder 23; a limiting wheel 25 is rotatably installed on the connecting frame 24, and the limiting wheel 25 is located directly above the electric roller 22.

[0037] When the sliding frame 3 moves forward, the sliding frame 3 will drive the guide frame 16, the movable rod 17, the connecting plate 19, the support plate 20, the roller 21 and the electric roller 22 to move forward, so that the electric roller 22 moves to the bottom of the PE pipe, and then the second reduction motor 1801 is controlled by the control console 2 to drive the bidirectional screw rod 1802 to rotate, so that the bidirectional screw rod 1802 drives the connecting plate 19 to move, so that the connecting plate 19 squeezes the support plate 20, the roller 21 and the electric roller 22 to move upward until the electric roller 22 contacts the PE pipe, and then the cylinder 23 is controlled by the control console 2 to drive the limiting wheel 25 to move downward until the limiting wheel 25 contacts the PE pipe, so that the limiting wheel 25 limits the PE pipe, and then the electric roller 22 is controlled by the control console 2 to rotate counterclockwise, so that the electric roller 22 drives the PE pipe through friction. Transport to the left. When the PE pipe contacts the roller 21, the roller 21 will assist the PE pipe to be transported to the left. In this way, it is convenient for the operator to transport the PE pipe. Finally, when all the PE pipes are transported to the left, the control panel 2 is used to control the electric roller 22 to stop rotating counterclockwise, and then the control panel 2 is used to control the cylinder 23 to drive the limit wheel 25 to move upward and reset. Then, the control panel 2 controls the second reduction motor 1801 to drive the bidirectional screw rod 1802 to reverse and reset, so that the bidirectional screw rod 1802 drives the connecting plate 19 to move in the opposite direction, so that the connecting plate 19 pulls the support plate 20, the roller 21 and the electric roller 22 to move downward and reset. After that, when the sliding frame 3 moves backward and resets, the sliding frame 3 will drive the guide frame 16, the movable rod 17, the connecting plate 19, the support plate 20, the roller 21 and the electric roller 22 to move backward and reset.

[0038] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic splicing PE pipe pulling machine, comprising a base (1) and a control panel (2), wherein the control panel (2) is mounted on the base (1), characterized in that: A sliding frame (3) is slidably arranged on the base (1), a translation mechanism is arranged on the base (1), and the translation mechanism is used to drive the sliding frame (3) to move on the base (1), a multi-section electric push rod (5) is installed on the top of the sliding frame (3), a traction head (6) is connected to the telescopic rod of the multi-section electric push rod (5), a first servo motor (7) is connected to the side of the traction head (6), a cone (8) is rotatably installed on the side of the traction head (6), the first servo motor (7) is located on the inner side of the cone (8), and the output shaft of the first servo motor (7) is connected to the cone (8), a laser rangefinder (9) is installed on the cone (8), an air bag (10) is rotatably installed on the outer side of the cone (8), and an inflator for inflating the air bag (10) is arranged in the traction head (6). The invention relates to an air mechanism, wherein the air bag (10) is used to support the inner side of the PE pipe after being inflated, a movable frame (12) is slidably arranged at intervals on the traction head (6), the movable frame (12) is used to press the outer side of the PE pipe, a semi-circular ball (13) is connected to the movable frame (12), the semi-circular ball (13) is used to embed into the outer side of the PE pipe, a retracting and extending mechanism is arranged in the traction head (6), the retracting and extending mechanism is used to drive the movable frame (12) on the traction head (6) to move, and a sealing mechanism for sealing the vacuum sizing cooling box is arranged on the control console (2); the inflation mechanism comprises an air pump (1102) and an air pipe (1103), a vent hole (1101) is opened on the traction head (6), an air pump (1102) is installed in the traction head (6), and the air pump (1103) is used to seal the vacuum sizing cooling box. The air outlet of the air bag (10) is connected to the air bag (10) through the air pipe (1103); the retracting and extending mechanism comprises a second servo motor (1401) and a rotating disk (1402); the second servo motor (1401) is installed in the traction head (6); the rotating disk (1402) is connected to the output shaft of the second servo motor (1401); the rotating disk (1402) is provided with arc grooves (1403) at intervals on the rotating disk (1402); the movable frame (12) moves in the arc grooves (1403); the rotating disk (1402) is driven to rotate by the second servo motor (1401), and the rotating disk (1402) squeezes the movable frame (12) in the arc grooves (1403) to move; the sealing mechanism comprises a slide plate (1501), a closing plate (1502), and a telescopic bellows (1501). 503), a connecting ring (1504) and a retaining member, a sliding plate (1501) is slidably arranged on the sliding frame (3), a closing plate (1502) is connected to the sliding plate (1501), the closing plate (1502) is used to seal the vacuum sizing cooling box, one end of the telescopic bellows (1503) is connected to the multi-section electric push rod (5), the other end of the telescopic bellows (1503) is connected to the closing plate (1502), the telescopic rod of the multi-section electric push rod (5) is located on the inner side of the telescopic bellows (1503), a connecting ring (1504) is installed on the side of the traction head (6), a retaining member is arranged between the connecting ring (1504) and the closing plate (1502), the retaining member is used to retain the connecting ring (1504) on the closing plate (1502);The locking member comprises a locking bead (1505) and a spring (1506); the locking bead (1505) is slidably arranged at intervals on the outer side of the connecting ring (1504); the spring (1506) is connected between the locking bead (1505) and the connecting ring (1504); and the closing plate (1502) is provided with a locking groove (1507) adapted to the locking bead (1505) at intervals; the locking bead (1505) is locked into the locking groove (1507) of the closing plate (1502). ; 2. The automatic splicing PE pipe pulling machine according to claim 1, characterized in that: The translation mechanism comprises a first reduction motor (401) and a one-way screw (402); the first reduction motor (401) is mounted on the side of the base (1); the one-way screw (402) is rotatably mounted on the base (1); the end of the one-way screw (402) is connected to the output shaft of the first reduction motor (401); and the sliding frame (3) is threadedly connected to the one-way screw (402).

3. The automatic splicing PE pipe pulling machine according to claim 2, characterized in that: The invention also comprises a conveying mechanism, which comprises a guide rail frame (16), a movable rod (17), a driving member, a connecting plate (19), a supporting plate (20), a roller (21), an electric roller (22), a cylinder (23), a connecting frame (24) and a limiting wheel (25). The sliding frame (3) is connected to the guide rail frame (16), the movable rod (17) is symmetrically slidably arranged on the guide rail frame (16), and the guide rail frame (16) is provided with a driving member, the driving member is used to drive the movable rod (17) to slide on the guide rail frame (16), and the movable rod (17) is symmetrically rotated on the guide rail frame (16). A connecting plate (19) is rotatably connected to the two movable rods (17), the connecting plates (19) on the two movable rods (17) are cross-distributed, a support plate (20) is rotatably arranged between the four connecting plates (19), rollers (21) are rotatably mounted on the support plates (20) at intervals, an electric roller (22) is also mounted on the support plates (20), a cylinder (23) is mounted on the side of the support plate (20), a connecting frame (24) is connected to the telescopic rod of the cylinder (23), a limiting wheel (25) is rotatably mounted on the connecting frame (24), and the limiting wheel (25) is located directly above the electric roller (22).

4. The automatic splicing PE pipe pulling machine according to claim 3, characterized in that: The driving member comprises a second reduction motor (1801) and a bidirectional lead screw (1802); the second reduction motor (1801) is mounted on the guide rail frame (16); a bidirectional lead screw (1802) is rotatably mounted on the guide rail frame (16); an end of the bidirectional lead screw (1802) is connected to an output shaft of the second reduction motor (1801); and two movable rods (17) are respectively threadedly connected to two ends of the bidirectional lead screw (1802).

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