Automatic lifting control device of pipe mechanical traction machine

Abstract

The utility model discloses an automatic lifting control device of a pipe mechanical tractor, which comprises a lifting device main body, the lifting device main body comprises a base, a lifting platform and a mounting plate, the mounting plate is divided into an upper shell and a lower shell, the upper shell is externally connected with a fixed support, the lifting platform is connected with the lower shell, and the lower shell is connected with the base. The pipe traction device comprises a base, an upper shell, a lower shell, two traction machine main bodies, a first lifting mechanism, a second lifting mechanism, a lifting mechanism and a lifting mechanism, the two traction machine main bodies are installed in the upper shell and the lower shell correspondingly and suitable for jointly pulling pipes to move, and the first lifting mechanism is arranged on the base; the first lifting mechanism is connected with the lifting platform so as to be suitable for driving the lifting platform to move longitudinally, the measuring assembly comprises at least one displacement sensor, the displacement sensor is installed on the base, and the position of a traction machine is monitored in real time by arranging the displacement sensor. The height of the traction machine can be accurately adjusted according to the diameters of different pipes.

Description

Technical Field

[0001] This utility model relates to the field of traction machine lifting technology, specifically to an automatic lifting control device for a pipe machinery traction machine. Background Technology

[0002] Currently, in the pipe processing industry, mechanical traction machines are one of the key pieces of equipment used for conveying and positioning pipes. Traditional pipe mechanical traction machines mainly rely on manual control for lifting operations. Although this manual control method can meet basic production needs to a certain extent, it has many shortcomings and limitations.

[0003] A search revealed a Chinese utility model patent with authorization announcement number CN218807616U, which discloses a power pipe traction device. This patent, through the design of a support beam and a movable plate, combined with a width adjustment mechanism, allows for flexible adjustment of the position of the second support plate to accommodate pipes of different lengths. This design improves the stability and convenience of traction and avoids damage to the pipes during the traction process. However, this patent relies on manual control, which has limited precision. Since the operator needs to rely on personal experience and feel to adjust the height, it is often difficult to guarantee the accuracy of the traction machine's position during the lifting process. Especially in production processes with high precision requirements, manual control is difficult to meet production standards, thus affecting product quality and consistency. Secondly, the manual operation process is cumbersome and inefficient. The operator needs to constantly adjust the height of the traction machine to accommodate pipes of different diameters, which not only increases the operator's labor intensity but also reduces production efficiency. At the same time, frequent manual adjustments also increase the uncertainty and safety hazards in the production process. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects in the existing technology. By setting a displacement sensor to monitor the position of the traction machine in real time, the height of the traction machine can be accurately adjusted according to the diameter of different pipe materials.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is an automatic lifting control device for a pipe mechanical traction machine, comprising:

[0006] The main body of the lifting device includes a base, a lifting platform, and a mounting plate, wherein the mounting plate is divided into...

[0007] The system consists of an upper housing and a lower housing, with an external fixed bracket connected to the upper housing and a lifting platform connected to the lower housing; two traction machine bodies are respectively installed inside the upper housing and the lower housing, and the two traction machine bodies are adapted to jointly traction the movement of the pipe.

[0008] A first lifting mechanism is mounted on the base and is connected to the lifting platform to drive the lifting platform to move longitudinally.

[0009] The measuring component includes at least one displacement sensor and a control processor. The displacement sensor is mounted on the base. A calibration measuring point is provided on the bottom of the lower housing at a position corresponding to the displacement sensor. A measuring port penetrating through itself is provided on the lifting platform at a position corresponding to the displacement sensor.

[0010] The displacement sensor is adapted to detect the distance between itself and the calibration measurement point and feed the signal back to the control processor. The control processor controls the distance that the first lifting mechanism needs to move, thereby adjusting the distance between the upper housing and the lower housing.

[0011] Furthermore, the main body of the traction machine includes a drive motor, a number of spaced-apart traction wheels, and a traction belt;

[0012] The drive motor is mounted on the corresponding upper or lower housing. Several traction wheels are rotatably mounted inside the upper or lower housing. The traction belt is sleeved on the outer circumferential surface of all the traction wheels through synchronous pulleys. The drive motor is connected to one of the traction wheels to drive that traction wheel to rotate, thereby driving the traction belt and all the other traction wheels to rotate.

[0013] Furthermore, the first lifting mechanism includes a lifting motor and a threaded rod;

[0014] The lifting motor is mounted on the base, and a guide groove is provided in the base. The threaded rod is rotatably mounted in the guide groove. Several transmission sleeves are provided on the lifting platform, one of which is fitted outside the thread. The lifting motor is connected to the threaded rod to drive the threaded rod to rotate in the guide groove, thereby driving the transmission sleeve to move in the guide groove along the axial direction of the threaded rod.

[0015] Furthermore, the base has several support grooves, and support rods are fixedly connected in the support grooves. The remaining transmission sleeves are slidably sleeved on the outside of the corresponding support rods.

[0016] When the lifting platform is driven to move longitudinally by the threaded rod, the other transmission sleeves slide outside the corresponding support rods.

[0017] Furthermore, a second lifting mechanism is provided between the lifting platform and the lower housing, and the second lifting mechanism is adapted to drive the lower housing to move longitudinally.

[0018] Furthermore, the second lifting mechanism is a telescopic cylinder.

[0019] Furthermore, a drive mechanism and an extrusion assembly are provided on both sides of the upper housing;

[0020] Guide components are provided on both sides of the lower housing, and the guide components are suitable for placing pipes that have not fully entered between the two traction machine bodies;

[0021] The drive mechanism is connected to the extrusion assembly to drive the extrusion assembly to move longitudinally, thereby extruding or releasing the pipe on the guide assembly that has not fully entered between the two traction machine bodies.

[0022] Furthermore, the drive mechanism includes a control cylinder and a slide rail, both of which are connected to the upper housing;

[0023] The extrusion assembly includes a slider and an upper pressure plate. The slider is connected to the telescopic end of the control cylinder and the upper pressure plate. The control cylinder is adapted to drive the slider to slide within the slide rail, thereby driving the upper pressure plate to move longitudinally.

[0024] Furthermore, the guide assembly includes a lower fixing frame and a placement plate, the placement plate being adapted to place the pipe, and the placement plate being slidably disposed within the lower fixing frame;

[0025] A limiting groove is provided in the lower fixed frame, and a limiting plate is connected to the side of the placement plate away from the traction machine body. The limiting plate is adapted to move with the placement plate and slide in the limiting groove.

[0026] A plurality of support springs are provided between the placement plate and the lower fixing frame, and the two ends of the support springs are respectively connected to the bottom of the placement plate and the inner bottom wall of the lower fixing frame.

[0027] The placement plate is rotatably mounted with several spaced auxiliary rollers.

[0028] Furthermore, the upper pressure plate has an inclined surface on the side away from the traction machine body, and the width of the upper pressure plate is half of the placement plate;

[0029] The side of the placement plate closest to the traction machine body is configured as an arc surface.

[0030] By adopting the above technical solution, this utility model has the following beneficial effects:

[0031] 1. Through the setting of the first lifting mechanism, the second lifting mechanism and the displacement sensor, the distance between the upper and lower housings is monitored in real time during use. Based on the diameter of the pipe to be pulled, the second lifting mechanism and / or the first lifting mechanism are accurately controlled to drive the lower housing to adjust longitudinally, so as to ensure that the distance between the lower housing and the upper housing meets the actual size of the pipe to be pulled.

[0032] 2. By using the upper pressure plate and placement plate, in the event that the pipe to be transported accidentally falls while the distance between the lower and upper housings is being continuously adjusted, the upper pressure plate is driven to move towards the placement plate, thereby fixing the pipe that is about to fall and preventing the accident from happening. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0034] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0035] Figure 3 This is a schematic diagram of the main structure of the traction machine of this utility model;

[0036] Figure 4 This is a schematic diagram of the first lifting mechanism of this utility model;

[0037] Figure 5 This is a schematic diagram of the protective component structure of this utility model.

[0038] In the diagram: 1. Main body of the lifting device; 11. Base; 12. Lifting platform; 121. Transmission sleeve; 13. Mounting plate; 131. Upper housing; 132. Lower housing;

[0039] 2. Traction machine body; 21. Drive motor; 22. Traction wheel; 23. Traction belt;

[0040] 3. First lifting mechanism; 31. Lifting motor; 32. Threaded rod; 33. Support rod;

[0041] 4. Second lifting mechanism; 41. Telescopic cylinder;

[0042] 5. Measuring components; 51. Displacement sensor; 52. Measuring port;

[0043] 61. Lower fixed frame; 62. Placement plate; 63. Limiting plate; 64. Auxiliary roller; 65. Arc-shaped surface; 66. Support spring; 67. Control cylinder; 68. Slide rail; 69. Slider; 610. Upper pressure plate; 611. Inclined surface. Detailed Implementation

[0044] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0045] Example 1

[0046] like Figure 1-2 As shown, an automatic lifting control device for a pipe traction machine includes:

[0047] The lifting device body 1 includes a base 11, a lifting platform 12 and a mounting plate 13. The mounting plate 13 is divided into an upper shell 131 and a lower shell 132. The upper shell 131 is externally connected to a fixed bracket, and the lifting platform 12 is connected to the lower shell 132.

[0048] Two traction machine bodies 2 are installed in the upper housing 131 and the lower housing 132 respectively, and the two traction machine bodies 2 are suitable for jointly tractioning the movement of the pipe.

[0049] The first lifting mechanism 3 is mounted on the base 11 and is connected to the lifting platform 12 to drive the lifting platform 12 to move longitudinally.

[0050] The measuring component 5 includes at least one displacement sensor 51 and a control processor. The displacement sensor 51 is mounted on the base 11. A calibration measuring point is set at the bottom of the lower housing 131 at a position corresponding to the displacement sensor 51. A measuring port 52 penetrating the platform 12 is opened at a position corresponding to the displacement sensor 51.

[0051] The displacement sensor 51 is adapted to detect the distance between itself and the calibration measurement point and feed the signal back to the control processor. The control processor controls the distance that the first lifting mechanism 3 needs to move, thereby adjusting the distance between the upper housing 131 and the lower housing 132.

[0052] like Figure 3 As shown, the traction machine body 2 includes a drive motor 21, a number of spaced traction wheels 22, and a traction belt 23;

[0053] The drive motor 21 is mounted on the corresponding upper housing 131 or lower housing 132. Several traction wheels 22 are rotatably mounted inside the upper housing 131 or lower housing 132. The traction belt 23 is sleeved on the outer circumference of all the traction wheels 22 through synchronous pulleys. The drive motor 21 is connected to one of the traction wheels 22 to drive the traction wheel 22 to rotate, thereby driving the traction belt 23 and all other traction wheels 22 to rotate.

[0054] like Figure 4 As shown, the first lifting mechanism 3 includes a lifting motor 31 and a threaded rod 32;

[0055] The lifting motor 31 is mounted on the base 11, and a guide groove is provided in the base 11. The threaded rod 32 is rotatably mounted in the guide groove. Several transmission sleeves 121 are provided on the lifting platform 12, one of which is assembled on the outside of the thread. The lifting motor 31 is connected to the threaded rod 32 to drive the threaded rod 32 to rotate in the guide groove, thereby driving the transmission sleeve 121 to move in the guide groove along the axial direction of the threaded rod 32.

[0056] like Figure 4 As shown, the base 11 has several support grooves, and support rods 33 are fixedly connected in the support grooves. The other transmission sleeves 121 are slidably sleeved on the outside of the corresponding support rods 33.

[0057] When the lifting platform 12 is driven to move longitudinally by the threaded rod 32, the other transmission sleeves 121 slide outside the corresponding support rod 33.

[0058] like Figure 3 As shown, a second lifting mechanism 4 is provided between the lifting platform 12 and the lower housing 132. The second lifting mechanism 4 is adapted to drive the lower housing 132 to move longitudinally.

[0059] like Figure 3 As shown, the second lifting mechanism 4 is a telescopic cylinder 41.

[0060] The working principle of this embodiment is as follows:

[0061] In use, the upper housing 131 is first fixed with an external fixing bracket, or other fixing methods can be used, as long as the upper housing 131 is limited to the same height. Then, the lower housing 132 and the lifting device body 1 that controls the longitudinal movement of the lower housing 132 are placed at the bottom of the upper housing 131. At this time, a traction machine body 2 is installed on both the upper housing 131 and the lower housing 132. The distance between the two traction machine bodies 2 is the pipe channel. Before the traction machine body 2 pulls the pipe, the actual diameter of the pipe to be pulled needs to be measured. The diameters of the pipes to be pulled in the same batch are roughly the same, so a portion of the pipe can be extracted for manual measurement. To determine the actual diameter of the pipe, a diameter gauge can be used to automatically inspect a portion of the pipes in the same batch. Regardless of the method used to inspect the actual diameter of the pipe, the data must ultimately be input into the control processor. After obtaining the data, the control processor combines it with the displacement sensor 51 to obtain the actual height of the lower housing 132. Since the height of the upper housing 131 is fixed, the distance between the upper housing 131 and the lower housing 132 needs to be adjusted so that the actual diameter of the pipe to be pulled only needs to know the actual size of the pipe and the actual height of the lower housing 132. After obtaining these two data, the control processor starts the lifting mechanism to drive the lower housing 132 to adjust its height.

[0062] The lifting mechanism is divided into a first lifting mechanism 3 and a second lifting mechanism 4. The two lifting mechanisms can be selected according to the actual situation, or they can be used simultaneously, as long as the lower housing 132 is raised to the accurate height.

[0063] The first lifting mechanism 3 is a lifting motor 31. When the lifting motor 31 is started by the control processor, its output shaft drives the threaded rod 32 to rotate. When the threaded rod 32 rotates, the transmission sleeve 121 mounted on its outside moves along the axis of the lifting platform 12, thereby driving the lower housing 132 to move. The threaded rod 32 and the transmission sleeve 121 can be assembled by ball nuts. The linear movement driven by the threaded rod 32 is existing technology and will not be described in detail here. While the threaded rod 32 rotates and drives the lifting platform 12 to move linearly, the other transmission sleeves 121 on the lifting platform 12 slide outside their respective support rods 33. The stability during lifting is improved by the frictional resistance between the other transmission sleeves 121 and the corresponding support rods 33.

[0064] The second lifting mechanism 4 is a telescopic cylinder 41. When the telescopic cylinder 41 is activated by the control processor, the telescopic end of the telescopic cylinder 41 extends and retracts, causing the lower housing 132 to move longitudinally.

[0065] Whether the first lifting mechanism 3 or the second lifting mechanism 4 is used to adjust the height of the lower housing 132, it is always under the detection of the displacement sensor 51. As an intermediate layer, the lifting platform 12 has a measuring port 52 to avoid blocking the displacement sensor 51 on the base 11 and the calibration measurement point at the bottom of the lower housing 132. No matter how the lower housing 132 moves, the displacement sensor 51 can accurately determine the distance from itself to the calibration measurement point to determine the height of the lower housing 132 and feed the signal back to the control processor. Finally, it determines the distance between the upper housing 131 and the lower housing 132 required according to the actual size of the pipe to be pulled, and controls the lifting mechanism to drive the lower housing 132 to move accurately.

[0066] The traction machine body 2 includes three parts: a drive motor 21, a traction wheel 22, and a traction belt 23. The drive motor 21 drives the traction wheel 22 to rotate, and the single traction wheel 22 drives the other traction wheels 22 and the traction belt 23 to rotate. The pipe located between the two traction belts 23 can be pulled by the driven rotating traction belts 23 in the two traction machine bodies 2 respectively set on the upper housing 131 and the lower housing 132. The traction machine body 2 is existing technology, and its working principle will not be described in detail here.

[0067] Example 2

[0068] like Figure 4-5As shown, this embodiment further includes the following structure based on embodiment one: a driving mechanism and an extrusion assembly are provided on both sides of the upper housing 131;

[0069] Guide components are provided on both sides of the lower housing 132. The guide components are suitable for placing pipes that have not fully entered between the two traction machine bodies 2.

[0070] The drive mechanism is connected to the extrusion assembly to drive the extrusion assembly to move longitudinally, thereby extruding or releasing the pipe on the guide assembly that has not fully entered between the two traction machine bodies 2.

[0071] like Figure 4-5 As shown, the drive mechanism includes a control cylinder 67 and a slide rail 68, both of which are connected to the upper housing 131.

[0072] The extrusion assembly includes a slider 69 and an upper pressure plate 610. The slider 69 is connected to the extension end of the control cylinder 67 and the upper pressure plate 610. The control cylinder 67 is adapted to drive the slider 69 to slide within the slide rail 68, thereby driving the upper pressure plate 610 to move longitudinally.

[0073] like Figure 5 As shown, the guide assembly includes a lower fixing frame 61 and a placement plate 62. The placement plate 62 is suitable for placing pipes and is slidably disposed within the lower fixing frame 61.

[0074] A limiting groove is provided in the lower fixed frame 61, and a limiting plate 63 is connected to the side of the placement plate 62 away from the traction machine body 2. The limiting plate 63 is adapted to move with the placement plate 62 and slide in the limiting groove.

[0075] A number of support springs 66 are provided between the placement plate 62 and the lower fixing frame 61. The two ends of the support springs 66 are respectively connected to the bottom of the placement plate 62 and the inner bottom wall of the lower fixing frame 61.

[0076] A number of spaced auxiliary rollers 64 are rotatably mounted on the placement plate 62.

[0077] like Figure 5 As shown, the upper pressure plate 610 has an inclined surface 611 on the side away from the traction machine body 2, and the width of the upper pressure plate 610 is half of the placement plate 62.

[0078] The side of the placement plate 62 closest to the traction machine body 2 is set as an arc-shaped surface 65.

[0079] The working principle of this embodiment is as follows:

[0080] During the continuous adjustment of the height of the lower housing 132, the pipe being pulled or not yet pulled may shake or fall due to errors in the information processing of the control processor or a malfunction of the lifting mechanism. Therefore, a protective component and a protective button are provided. In an emergency, pressing the protective button can stop the lifting mechanism and activate the protective component to fix the pipe that is about to fall.

[0081] First, when the pipe is about to be pulled or about to leave the main body 2 of the traction machine, it will pass through the placement plate 62 on the lower housing 132. The placement plate 62 is provided with multiple rotatable auxiliary rollers 64 to assist the pipe to move more smoothly. The placement plate 62 is movable in the lower fixed frame 61. Several support springs 66 are provided between the placement plate 62 and the lower fixed frame 61. At the same time, a limiting groove is provided on the lower fixed frame 61 to limit the movement direction of the placement plate 62. A limiting plate 63 is provided on the side of the placement plate 62 away from the main body 2 of the traction machine. When the placement plate 62 is squeezed, it will squeeze the support springs 66 at its bottom and drive the limiting plate 63 to move in the limiting groove.

[0082] When the protective assembly is activated, the control cylinder 67 on one side of the upper housing 131 is activated, and drives the slider 69 to move within the slide rail 68 on the upper housing 131. The movement of the slider 69 will drive the upper pressure plate 610 to move. After the upper pressure plate 610 moves towards the placement plate 62, it will squeeze the pipes on the placement plate 62 that have not fully entered between the two traction machine bodies 2. The distance between the lower pressure plate and the placement plate 62 is slightly larger than the actual diameter of the pipe to avoid interfering with the normal entry of the pipes between the traction machine bodies 2. In order to avoid the pipes being over-compressed, the placement plate 62 is set to be movable. The pipes after being squeezed will then squeeze the placement plate 62, and the placement plate 62 will continue to squeeze the support spring 66 to achieve its own movement. This is to avoid the pipes being over-compressed and damaged. In addition, the support spring 66 has the characteristic of rebound, which can also prevent the pipes from falling due to insufficient clamping force.

[0083] In addition, the width of the upper pressure plate 610 can be set to half that of the placement plate 62. The side of the placement plate 62 closest to the traction machine body 2 is set as an arc-shaped surface 65, while the side of the upper pressure plate 610 away from the traction machine body 2 is set as an inclined surface 611. Under this setting, after the lower pressure plate squeezes the placement plate 62, one end of the arc-shaped surface 65 of the placement plate 62 will be pressed down and tilted. The maximum tilt angle can reach parallel to the inclined surface 611 of the upper pressure plate 610. The end of the pipe on the placement plate 62 closest to the traction machine body 2 will be pressed down and tilted downward on the lower fixing frame 61. This setting provides more stable restriction for the pipe. It may cause some damage to the pipe, but overall, no matter which method is used, it can restrict the pipe that is about to fall and prevent further deterioration due to accidents.

[0084] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic lifting control device for a pipe traction machine, characterized in that: include: The lifting device body (1) includes a base (11), a lifting platform (12) and a mounting plate (13). The mounting plate (13) is divided into an upper shell (131) and a lower shell (132). The upper shell (131) is externally connected to a fixed bracket, and the lifting platform (12) is connected to the lower shell (132). Two traction machine bodies (2) are installed in the upper housing (131) and the lower housing (132) respectively, and the two traction machine bodies (2) are adapted to jointly traction the movement of the pipe. A first lifting mechanism (3) is provided on the base (11) and is connected to the lifting platform (12) to drive the lifting platform (12) to move longitudinally. The measuring component (5) includes at least one displacement sensor (51) and a control processor. The displacement sensor (51) is mounted on the base (11). A calibration measuring point is provided at the bottom of the lower housing (132) at a position corresponding to the displacement sensor (51). A measuring port (52) penetrating through itself is provided on the lifting platform (12) at a position corresponding to the displacement sensor (51). The displacement sensor (51) is adapted to detect the distance between itself and the calibration measurement point and transmit the signal to the control processor, which controls the distance that the first lifting mechanism (3) needs to move, thereby adjusting the distance between the upper housing (131) and the lower housing (132).

2. The automatic lifting control device for the pipe traction machine according to claim 1, characterized in that, The traction machine body (2) includes a drive motor (21), a number of spaced traction wheels (22) and a traction belt (23); The drive motor (21) is mounted on the corresponding upper housing (131) or lower housing (132). A plurality of traction wheels (22) are rotatably mounted inside the upper housing (131) or lower housing (132). The traction belt (23) is sleeved on the outer circumferential surface of all the traction wheels (22) through synchronous pulleys. The drive motor (21) is connected to one of the traction wheels (22) to drive the traction wheel (22) to rotate, thereby driving the traction belt (23) and all the other traction wheels (22) to rotate.

3. The automatic lifting control device for the pipe mechanical traction machine according to claim 1, characterized in that, The first lifting mechanism (3) includes a lifting motor (31) and a threaded rod (32); The lifting motor (31) is mounted on the base (11), and a guide groove is provided in the base (11). The threaded rod (32) is rotatably mounted in the guide groove. A plurality of transmission sleeves (121) are provided on the lifting platform (12), one of which is assembled on the outside of the thread. The lifting motor (31) is connected to the threaded rod (32) to drive the threaded rod (32) to rotate in the guide groove, thereby driving the transmission sleeve (121) to move in the guide groove along the axial direction of the threaded rod (32).

4. The automatic lifting control device for the pipe traction machine according to claim 3, characterized in that, The base (11) has several support grooves, and a support rod (33) is fixedly connected in the support groove. The other transmission sleeves (121) are slidably sleeved on the outside of the corresponding support rod (33). When the lifting platform (12) is driven to move longitudinally by the threaded rod (32), the other transmission sleeves (121) slide outside the corresponding support rod (33).

5. The automatic lifting control device for a pipe traction machine according to claim 1 or 3, characterized in that, A second lifting mechanism (4) is provided between the lifting platform (12) and the lower housing (132), and the second lifting mechanism (4) is adapted to drive the lower housing (132) to move longitudinally.

6. The automatic lifting control device for a pipe traction machine according to claim 5, characterized in that, The second lifting mechanism (4) is a telescopic cylinder (41).

7. The automatic lifting control device for a pipe traction machine according to claim 1, characterized in that, Both sides of the upper housing (131) are provided with a drive mechanism and an extrusion assembly; Guide components are provided on both sides of the lower housing (132), and the guide components are suitable for placing pipes that have not fully entered between the two traction machine bodies (2); The drive mechanism is connected to the extrusion assembly to drive the extrusion assembly to move longitudinally, thereby extruding or releasing the pipes on the guide assembly that have not fully entered between the two traction machine bodies (2).

8. The automatic lifting control device for a pipe traction machine according to claim 7, characterized in that, The drive mechanism includes a control cylinder (67) and a slide rail (68), both of which are connected to the upper housing (131). The extrusion assembly includes a slider (69) and an upper pressure plate (610). The slider (69) is connected to the telescopic end of the control cylinder (67), and the slider (69) is connected to the upper pressure plate (610). The control cylinder (67) is adapted to drive the slider (69) to slide within the slide rail (68), thereby driving the upper pressure plate (610) to move longitudinally.

9. The automatic lifting control device for a pipe traction machine according to claim 8, characterized in that, The guide assembly includes a lower fixing frame (61) and a placement plate (62), the placement plate (62) being adapted to place the pipe, and the placement plate (62) being slidably disposed within the lower fixing frame (61); A limiting groove is provided in the lower fixing frame (61), and a limiting plate (63) is connected to the side of the placement plate (62) away from the traction machine body (2). The limiting plate (63) is adapted to move with the placement plate (62) and slide in the limiting groove. A plurality of support springs (66) are provided between the placement plate (62) and the lower fixing frame (61), and the two ends of the support springs (66) are respectively connected to the bottom of the placement plate (62) and the inner bottom wall of the lower fixing frame (61). A number of spaced auxiliary rollers (64) are rotatably mounted on the placement plate (62).

10. The automatic lifting control device for a pipe traction machine according to claim 9, characterized in that, The upper pressure plate (610) has an inclined surface (611) on the side away from the traction machine body (2), and the width of the upper pressure plate (610) is half of the placement plate (62); The side of the placement plate (62) closest to the traction machine body (2) is configured as an arc-shaped surface (65).

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