Thermoplastic prosthetic pipe i-beam extrusion

Abstract

The utility model provides a thermoplastic repair pipeline H type extrusion structure belongs to thermoplastic repair pipeline technical field to solve the extrusion drive of pipeline in prior art more adopts cylinder cooperation gear and rack structure, can cause local extrusion excess or deficiency, and the problem of forming defect such as pipeline wrinkle, wall thickness uneven etc. is caused, it includes mounting bracket, mounting bracket top bottom plate both ends are equipped with mounting plate, one side mounting plate outside is equipped with motor, motor output end is connected with lead screw, and the both ends of lead screw are rotatably connected with mounting plate, and the threaded connection of lead screw is moved seat, and the top of moving seat is equipped with connecting frame, and the rotation of connecting frame is connected extruding wheel, still include guide rod, its both ends are connected with mounting plate, and the slide sleeve guide seat of guide rod is connected with connecting frame. The utility model adopts lead screw drive, can accurate control extruding wheel moving distance, and the extrusion precision is promoted, and the cooperation of guide rod and guide seat ensures that moving is stable, avoids forming deviation, and the whole structure is simple and compact.

Description

Technical Field

[0001] This utility model belongs to the field of thermoplastic repair pipe technology, specifically relating to an I-shaped extrusion structure for thermoplastic repair pipe. Background Technology

[0002] In the thermoplastic repair of pipes, the extrusion operation of thermoplastic pipes is the core link to achieve precise molding. Whether it is folding round pipes into specific cross-sections such as I-shaped pipes to fit the repair channel, or making thermoplastic material fit tightly against the inner wall of the pipe to be repaired, stable and controllable extrusion action is required to ensure molding accuracy and bonding effect.

[0003] In existing technologies, such as the thermoplastic repair pipe folding and forming equipment disclosed in patent CN202510921614.1, which folds and forms a round pipe into an I-shape, the extrusion drive of the pipe often adopts a cylinder combined with a gear and rack structure: the cylinder provides power, the piston rod extends and retracts to drive the rack to move linearly, and then the rack meshes with the gear to realize the power steering and transmission, ultimately driving the extrusion wheel or extrusion block to apply pressure to the pipe. However, this type of structure has obvious limitations: the driving force of the cylinder depends on air pressure control, and the air pressure is easily affected by factors such as air source fluctuations and pipeline leaks, resulting in unstable pressure output during extrusion. When the thermoplastic pipe is in a softened state, even small fluctuations in pressure may cause local over- or under-extrusion, leading to forming defects such as pipe wrinkles and uneven wall thickness. Utility Model Content

[0004] In view of this, the present invention provides a thermoplastic repair pipe I-shaped extrusion structure to solve the problem that the extrusion drive of pipes in the prior art mostly adopts a cylinder and gear rack structure, which may cause local over- or under-extrusion, resulting in forming defects such as pipe wrinkles and uneven wall thickness.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A thermoplastic repair pipe I-beam extrusion structure includes a mounting frame with a base plate at the top and mounting plates at both ends along the length of the base plate. A motor is mounted on the outer side of one of the mounting plates, and a lead screw is fixedly connected to the output end of the motor. The two ends of the lead screw are rotatably connected to the two mounting plates respectively. A movable seat is threaded onto the lead screw, and a connecting frame is mounted on the top of the movable seat. An extrusion wheel is rotatably connected to the connecting frame. The structure also includes a guide rod with both ends connected to the two mounting plates respectively. A guide seat is slidably mounted on the guide rod and connected to the connecting frame.

[0007] In this technical solution, it should be noted that in the thermoplastic repair pipe I-shaped extrusion structure, the mounting frame provides basic support for the overall structure, bearing the weight of each component and ensuring stable placement of the equipment; the base plate is fixed to the top of the mounting frame, serving as the mounting carrier for components such as the mounting plate, and providing a horizontal installation benchmark for the overall structure; the mounting plates at both ends are used to support the ends of the lead screw and guide rod, respectively, and also provide mounting positions for the motor. The motor on the outer side of one mounting plate is the power source, used to drive the lead screw to rotate; the lead screw, through threaded engagement with the moving seat, converts the rotational motion of the motor into the linear motion of the moving seat, realizing the position adjustment of the extrusion wheel; the connecting frame at the top of the moving seat is used to install the extrusion wheel, which is rotatably connected to the connecting frame and can roll when in contact with the pipe, reducing frictional damage to the pipe surface; the guide rod is fixed to the mounting plate at both ends, and the guide seat is slidably sleeved on the guide rod and connected to the connecting frame, used to limit the rotation of the moving seat, ensuring that it remains stable when moving with the lead screw and avoiding deviation. In use, the mounting brackets are installed at the workstations (two brackets are required). The thermoplastic pipe to be processed is placed at the corresponding workstations of the two extrusion rollers, aligning the part to be extruded with the rollers. The motor is started, and the motor output drives the lead screw to rotate. As the lead screw rotates, the moving seat moves axially along the lead screw under the action of the thread. The connecting bracket moves with the moving seat, causing the extrusion rollers to approach the pipe. After the extrusion rollers contact the pipe, the direction and position of movement of the extrusion rollers are adjusted by controlling the forward and reverse rotation of the motor according to the I-shaped forming requirements, precisely extruding the pipe until the pipe forms the required I-shaped cross-section. In this solution: the lead screw drive is used, which can more accurately control the movement distance of the extrusion rollers and improve the accuracy of the extrusion position compared to traditional cylinder or gear drives; the cooperation between the guide rod and the guide seat ensures the smooth movement of the extrusion rollers and avoids pipe forming deviations caused by shaking during extrusion; the overall structure is simple and compact.

[0008] Preferably, the bottom of the connecting bracket is higher than the top of the mounting plate.

[0009] In this technical solution, it should be noted that the bottom of the connecting frame is higher than the top of the mounting plate. This is mainly to avoid interference between the connecting frame and the mounting plate as the moving seat moves along the screw. It also allows sufficient space for the movement of the connecting frame, increases the stroke of the horizontal movement of the extrusion roller, and prevents collisions or jamming caused by the close proximity of the two. This ensures the smooth movement of the connecting frame and the extrusion roller, thereby guaranteeing the stability of the thermoplastic pipe extrusion molding process.

[0010] Preferably, there are two guide rods, which are symmetrically arranged on both sides of the lead screw.

[0011] In this technical solution, it should be noted that the two guide rods can apply guiding forces to both sides of the connecting frame, preventing the moving seat and connecting frame from shifting or wobbling due to unilateral force when moving with the lead screw. This ensures that the extrusion roller maintains a stable posture during movement, thereby guaranteeing accurate extrusion positioning of the thermoplastic pipe. Simultaneously, the symmetrically arranged double guide rods can disperse the radial force generated during movement, reducing wear on the threaded connection between the lead screw and the moving seat, extending the service life of components, and making the entire structure operate more smoothly and reliably during I-beam extrusion of the pipe.

[0012] Preferably, the mounting plate has a through mounting hole, and the two ends of the guide rod are respectively provided with plugs that can be inserted into the mounting hole. The diameter of the plug is smaller than the diameter of the guide rod, and a nut is threaded onto the plug.

[0013] In this technical solution, it should be noted that the mounting holes on the mounting plate provide a positioning base for the guide rod installation. The diameter of the plugs at both ends of the guide rod is smaller than that of the guide rod body, allowing the plugs to be smoothly inserted into the mounting holes. The guide rod body, due to its larger diameter, can rest against the outside of the mounting plate, forming an initial limiting position. After the plugs pass through the mounting holes, tightening the nuts on the plugs utilizes the clamping force generated by the threaded engagement between the nuts and plugs to firmly fix the guide rod between the two mounting plates. This structure eliminates the need for complex connecting parts, simplifying assembly and disassembly, facilitating later maintenance or replacement of the guide rod, and ensuring the stability of the guide rod when sliding on the supporting moving seat and connecting frame, thereby ensuring the accuracy of the extrusion roller's extrusion operation on the pipe.

[0014] Preferably, the plug is further fitted with a washer, which is located between the nut and the mounting plate.

[0015] In this technical solution, it should be noted that the function of the gasket is to increase the contact area between the nut and the mounting plate, so as to avoid the pressure concentration during nut tightening causing squeezing damage to the surface of the mounting plate. At the same time, it can enhance the sealing and stability of the nut connection, reduce the possibility of the nut loosening due to vibration during equipment operation, ensure that the connection between the guide rod and the mounting plate is always firm and reliable, thereby ensuring the guiding accuracy of the guide rod to the moving seat and maintaining the stability of the extrusion wheel extrusion operation.

[0016] Preferably, the movable base is provided with an extension plate, and each end of the extension plate is provided with a touch sensor, the touch sensor facing the mounting plate, and the touch sensor is electrically connected to the motor.

[0017] In this technical solution, it should be noted that the extension plate primarily provides a stable mounting platform for the touch sensors. Touch sensors are installed at both ends of the extension plate, with the sensors facing the mounting plate to accurately detect changes in distance between the moving base and the mounting plate. The touch sensors are electrically connected to the motor to form a linkage control relationship: when the moving base moves along the lead screw towards a certain side of the mounting plate, if it approaches that side of the mounting plate, the corresponding touch sensor will first contact the mounting plate (or reach a preset trigger distance) and trigger a signal. After the signal is transmitted to the motor, it can immediately control the motor to stop running or rotate in the reverse direction, thereby limiting the movement range of the moving base. The placement of the touch sensors prevents the moving base from colliding hard with the mounting plate due to excessive movement, protecting the lead screw, moving base, and mounting plate from damage.

[0018] Preferably, the connecting frame includes a lower plate, one end of which is detachably connected to a connecting plate, and the end of the connecting plate away from the lower plate is connected to an upper plate. The upper plate and the lower plate are connected by a fixed shaft, and the fixed shaft is detachably connected to both the upper plate and the lower plate. A bearing is sleeved on the fixed shaft, and one end of the bearing is provided with a first limiting plate. The diameter of the first limiting plate is larger than the diameter of the bearing. The extrusion wheel is sleeved on the bearing, and a second limiting plate is threadedly connected to the fixed shaft. The second limiting plate is located on the side of the bearing away from the first limiting plate.

[0019] In this technical solution, it should be noted that the main function of the connecting frame structure is to facilitate the disassembly and installation of the extrusion wheel. The lower plate and the connecting plate are detachably connected. When the extrusion wheel needs to be removed, first remove the lower plate from the connecting plate, then unscrew the second limiting plate from the fixed shaft. At this time, the bearing loses the limitation of the second limiting plate, and the extrusion wheel can be directly removed from the bearing. When installing the extrusion wheel, simply put the extrusion wheel on the bearing, then screw the second limiting plate onto the fixed shaft to achieve limitation. After that, connect the fixed shaft to the upper plate and the lower plate, and finally install the lower plate and the connecting plate.

[0020] Preferably, the fixed shaft is connected to the upper plate and the lower plate by a key.

[0021] In this technical solution, it should be noted that the fixed shaft is connected to the upper and lower plates by a key (key connection is existing technology). This not only stably transmits the torque generated when the extrusion roller is working, avoiding relative rotation between the fixed shaft and the upper and lower plates that would affect the extrusion accuracy, but also retains good disassembly, providing convenience for the subsequent disassembly and assembly of the extrusion roller.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] 1. In this utility model, a screw drive is adopted, which can more accurately control the movement distance of the extrusion wheel and improve the accuracy of the extrusion position compared with the traditional cylinder or gear drive; the cooperation between the guide rod and the guide seat ensures the smooth movement of the extrusion wheel and avoids pipe forming deviation caused by shaking during extrusion; the overall structure is simple and compact.

[0024] 2. In this utility model, the bottom of the connecting frame is higher than the top of the mounting plate, mainly to avoid interference between the connecting frame and the mounting plate during the movement of the moving seat along the screw. This allows sufficient space for the movement of the connecting frame, increases the stroke of the horizontal movement of the extrusion roller, prevents collisions or jamming caused by the close distance between the two, ensures the smooth movement of the connecting frame and the extrusion roller, and thus ensures the stability of the thermoplastic pipe extrusion molding process.

[0025] 3. In this utility model, the lower plate and the connecting plate are detachably connected. When it is necessary to remove the extrusion wheel, first remove the lower plate from the connecting plate, and then unscrew the second limiting plate from the fixed shaft. At this time, the bearing loses the limitation of the second limiting plate, and the extrusion wheel can be directly removed from the bearing. When installing the extrusion wheel, simply put the extrusion wheel on the bearing, and then screw the second limiting plate on the fixed shaft to achieve limitation. After that, connect the fixed shaft to the upper plate and the lower plate, and finally install the lower plate and the connecting plate. Attached Figure Description

[0026] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0029] Figure 3 for Figure 2 A schematic diagram after cutting along AA;

[0030] Figure 4 This is a side view of the structure of this utility model;

[0031] Figure 5 This is a three-dimensional structural diagram of the connecting frame of this utility model;

[0032] Figure 6 This is a cross-sectional three-dimensional structural diagram of the connecting frame;

[0033] Wherein: 100-Mounting bracket, 200-Base plate, 300-Mounting plate, 400-Motor, 500-Lead screw, 501-Moving seat, 600-Guide rod, 601-Guide seat, 602-Nut, 603-Washer, 604-Plug, 700-Extension plate, 701-Touch sensor, 800-Connecting bracket, 801-Lower plate, 802-Connecting plate, 803-Upper plate, 804-Fixed shaft, 805-Bearing, 806-First limiting plate, 807-Second limiting plate, 900-Extrusion roller. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that the embodiments and the features in the embodiments in the utility model can be combined with each other in the case of no conflict.

[0040] Example 1

[0041] As Figures 1-6As shown in the figure, this utility model discloses a thermoplastic repair pipe I-shaped extrusion structure, including a mounting frame 100, a base plate 200 on the top of the mounting frame 100, mounting plates 300 at both ends of the base plate 200 along its length, a motor 400 on the outer side of one of the mounting plates 300, a lead screw 500 fixedly connected to the output end of the motor 400, the two ends of the lead screw 500 being rotatably connected to the two mounting plates 300 respectively, a movable seat 501 threadedly connected to the lead screw 500, a connecting frame 800 on the top of the movable seat 501, and an extrusion wheel 900 rotatably connected to the connecting frame 800; it also includes a guide rod 600, the two ends of the guide rod 600 being connected to the two mounting plates 300 respectively, a guide seat 601 slidably sleeved on the guide rod 600, and the guide seat 601 being connected to the connecting frame 800. It should be noted that in this thermoplastic repair pipe I-beam extrusion structure, the mounting frame 100 provides basic support for the overall structure, bearing the weight of each component and ensuring stable placement of the equipment; the base plate 200 is fixed to the top of the mounting frame 100, serving as the mounting carrier for components such as the mounting plate 300, and providing a horizontal installation reference for the overall structure; the mounting plates 300 at both ends are used to support the ends of the lead screw 500 and the guide rod 600, respectively, and also provide an installation position for the motor 400. The motor 400 on the outer side of one mounting plate 300 is the power source, used to drive the lead screw 500 to rotate; the lead screw 500 is connected to the moving seat 5... The threaded engagement of 01 converts the rotational motion of the motor 400 into the linear motion of the moving seat 501, thereby adjusting the position of the extrusion roller 900. The connecting bracket 800 on the top of the moving seat 501 is used to install the extrusion roller 900. The extrusion roller 900 is rotatably connected to the connecting bracket 800 and can roll when in contact with the pipe, reducing frictional damage to the pipe surface. The guide rod 600 is fixed at both ends to the mounting plate 300. The guide seat 601 is slidably sleeved on the guide rod 600 and connected to the connecting bracket 800. It is used to limit the rotation of the moving seat 501 and ensure that it remains stable when moving with the lead screw 500, avoiding deviation. In use, the mounting bracket 100 is installed on the workstation (there are two mounting brackets 100). The thermoplastic pipe to be processed is placed on the corresponding workstation of the two extrusion rollers 900, so that the part to be extruded is aligned with the extrusion rollers 900. The motor 400 is started. The output end of the motor 400 drives the lead screw 500 to rotate. When the lead screw 500 rotates, the moving seat 501 moves along the axial direction of the lead screw 500 under the action of the thread. The connecting bracket 800 moves with the moving seat 501, which drives the extrusion rollers 900 to approach the pipe. After the extrusion rollers 900 contact the pipe, according to the I-shaped forming requirements, the moving direction and position of the extrusion rollers 900 are adjusted by controlling the forward and reverse rotation of the motor 400 to precisely extrude the pipe until the pipe forms the required I-shaped cross section.In this design: the lead screw 500 is used for transmission, which can more accurately control the movement distance of the extrusion roller 900 and improve the accuracy of the extrusion position compared with traditional cylinder or gear transmission; the cooperation between the guide rod 600 and the guide seat 601 ensures the smooth movement of the extrusion roller 900 and avoids pipe forming deviation caused by shaking during extrusion; the overall structure is simple and compact.

[0042] like Figure 4 As shown, in this embodiment, the bottom of the connecting frame 800 is higher than the top of the mounting plate 300. It should be noted that the bottom of the connecting frame 800 is higher than the top of the mounting plate 300 primarily to avoid interference between the connecting frame 800 and the mounting plate 300 during the movement of the moving seat 501 along the lead screw 500. This provides sufficient space for the movement of the connecting frame 800, increases the horizontal travel of the extrusion roller 900, prevents collisions or jamming due to excessively close proximity, ensures smooth movement of the connecting frame 800 and the extrusion roller 900, and thus guarantees the stability of the thermoplastic pipe extrusion molding process.

[0043] like Figure 3 As shown, in this embodiment, there are two guide rods 600, symmetrically arranged on both sides of the lead screw 500. It should be noted that the two guide rods 600 can apply guiding forces to both sides of the connecting frame 800 respectively, preventing the moving seat 501 and the connecting frame 800 from shifting or wobbling due to unilateral force when moving with the lead screw 500. This ensures that the extrusion roller 900 maintains a stable posture during movement, thereby guaranteeing accurate extrusion positioning of the thermoplastic pipe. Simultaneously, the symmetrically arranged double guide rods 600 can disperse the radial force generated during movement, reducing wear on the threaded connection between the lead screw 500 and the moving seat 501, extending the service life of the components, and making the entire structure operate more smoothly and reliably when performing I-beam extrusion on the pipe.

[0044] Example 2

[0045] like Figure 3As shown, this embodiment is largely the same as the previous embodiment, except that the mounting plate 300 has a through mounting hole, and the guide rod 600 has a plug 604 at each end that can be inserted into the mounting hole. The diameter of the plug 604 is smaller than the diameter of the guide rod 600, and a nut 602 is threaded onto the plug 604. It should be noted that the mounting hole on the mounting plate 300 provides a positioning basis for the installation of the guide rod 600. The diameter of the plug 604 at both ends of the guide rod 600 is smaller than the diameter of the guide rod 600 body, allowing the plug 604 to be smoothly inserted into the mounting hole. The guide rod 600 body, due to its larger diameter, can rest against the outside of the mounting plate 300, forming a preliminary limit. After the plug 604 passes through the mounting hole, by tightening the nut 602 on the plug 604, the clamping force generated by the threaded engagement between the nut 602 and the plug 604 can firmly fix the guide rod 600 between the two mounting plates 300. This structure eliminates the need for complex connecting parts, making assembly and disassembly simple and facilitating the maintenance or replacement of the guide rod 600 later. It also ensures the stability of the guide rod 600 when it slides on the support moving seat 501 and the connecting frame 800, thereby ensuring the accuracy of the extrusion wheel 900 in the pipe extrusion operation.

[0046] like Figure 3 As shown, in this embodiment, a washer 603 is also fitted onto the plug 604, and the washer 603 is located between the nut 602 and the mounting plate 300. It should be noted that the function of the washer 603 is to increase the contact area between the nut 602 and the mounting plate 300, preventing pressure concentration from causing extrusion damage to the surface of the mounting plate 300 when the nut 602 is tightened. Simultaneously, it enhances the sealing and stability of the nut 602 connection, reducing the possibility of the nut 602 loosening due to vibration during equipment operation, ensuring that the connection between the guide rod 600 and the mounting plate 300 is always firm and reliable, thereby guaranteeing the guiding accuracy of the guide rod 600 to the moving seat 501 and maintaining the stability of the extrusion operation of the extrusion roller 900.

[0047] Example 3

[0048] like Figure 1As shown, this embodiment is largely the same as the previous embodiment, except that the movable base 501 is provided with an extension plate 700, and each end of the extension plate 700 is provided with a touch sensor 701. The touch sensors 701 face the mounting plate 300 and are electrically connected to the motor 400. It should be noted that the extension plate 700 mainly provides a stable mounting carrier for the touch sensors 701. The arrangement of the touch sensors 701 at both ends and facing the mounting plate 300 can accurately detect changes in the distance between the movable base 501 and the mounting plate 300. The touch sensor 701 is electrically connected to the motor 400 to form a linkage control relationship: when the movable seat 501 moves along the lead screw 500 towards a certain side mounting plate 300, if it approaches the mounting plate 300, the touch sensor 701 at the corresponding end will first contact the mounting plate 300 (or reach a preset trigger distance) and trigger a signal. After the signal is transmitted to the motor 400, the motor 400 can be immediately controlled to stop running or rotate in the opposite direction, thereby limiting the movement range of the movable seat 501. By setting the touch sensor 701, the movable seat 501 is prevented from making a hard collision with the mounting plate 300 due to excessive movement, protecting the lead screw 500, movable seat 501, and mounting plate 300 from damage.

[0049] Example 4

[0050] like Figure 6As shown, this embodiment is largely the same as the above embodiment, except that the connecting frame 800 includes a lower plate 801, one end of which is detachably connected to a connecting plate 802, and the end of the connecting plate 802 away from the lower plate 801 is connected to an upper plate 803. The upper plate 803 and the lower plate 801 are connected by a fixed shaft 804, and the fixed shaft 804 is detachably connected to both the upper plate 803 and the lower plate 801. A bearing 805 is sleeved on the fixed shaft 804, and one end of the bearing 805 is provided with a first limiting plate 806. The diameter of the first limiting plate 806 is larger than the diameter of the bearing 805. The extrusion wheel 900 is sleeved on the bearing 805. A second limiting plate 807 is threadedly connected to the fixed shaft 804, and the second limiting plate 807 is located on the side of the bearing 805 away from the first limiting plate 806. It should be noted that the main function of this connecting frame 800 structure is to facilitate the disassembly and installation of the extrusion wheel 900. The lower plate 801 and the connecting plate 802 are detachably connected. When the extrusion wheel 900 needs to be removed, first remove the lower plate 801 from the connecting plate 802, and then unscrew the second limiting plate 807 from the fixed shaft 804. At this time, the bearing 805 loses the limitation of the second limiting plate 807, and the extrusion wheel 900 can be directly removed from the bearing 805. When installing the extrusion wheel 900, simply put the extrusion wheel 900 on the bearing 805, and then screw the second limiting plate 807 onto the fixed shaft 804 to achieve limitation. After that, connect the fixed shaft 804 to the upper plate 803 and the lower plate 801, and finally install the lower plate 801 and the connecting plate 802.

[0051] like Figure 6 As shown, in this embodiment, the fixed shaft 804 is connected to the upper plate 803 and the lower plate 801 via a key. It should be noted that the key connection between the fixed shaft 804 and the upper and lower plates 803 (key connection is existing technology) can stably transmit the torque generated by the extrusion roller 900 during operation, preventing relative rotation between the fixed shaft 804 and the upper and lower plates 803 and 801 from affecting extrusion accuracy, while also maintaining good detachability, facilitating the subsequent assembly and disassembly of the extrusion roller 900.

[0052] The working principle of this utility model is as follows:

[0053] During operation, the two sets of mounting brackets 100 of the extrusion structure are first installed at the corresponding workstations, with the extrusion rollers 900 facing each other to form the extrusion zone for pipe processing. The thermoplastic pipe to be processed is placed at the corresponding workstation between the two extrusion rollers 900, and the pipe position is adjusted so that the part to be extruded is aligned with the extrusion rollers 900. The motor 400 on the outer side of one of the mounting plates 300 is started, and the output end of the motor 400 transmits torque to the lead screw 500, causing the lead screw 500 to rotate around its own axis. Because the lead screw 500 and the moving seat 501 are threadedly connected, the rotational motion of the lead screw 500 is converted into the linear motion of the moving seat 501 along the axis of the lead screw 500. When the moving seat 501 moves, the connecting bracket 800 at the top moves synchronously with it, thereby causing the extrusion roller 900 on the connecting bracket 800 to move closer to the thermoplastic pipe. Once the extrusion roller 900 contacts the pipe surface, according to the forming requirements of the I-shaped cross-section, the moving direction and distance of the moving seat 501 are adjusted by controlling the forward and reverse rotation of the motor 400, so that the extrusion roller 900 applies precise extrusion force to the pipe. After the pipe has undergone multiple position adjustments and extrusion operations to form the required I-shaped cross-section, the motor 400 is turned off, the extrusion roller 900 stops moving, and one extrusion forming operation is completed. If the extrusion roller 900 needs to be replaced, the lower plate 801 of the connecting frame 800 and the connecting plate 802 can be separated first, the second limiting plate 807 on the fixed shaft 804 can be unscrewed, the old extrusion roller 900 can be removed, and the new extrusion roller 900 can be installed in reverse order to continue the operation.

[0054] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0055] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermoplastic repair pipe I-beam extrusion structure, characterized in that, The device includes a mounting frame (100), a base plate (200) on top of the mounting frame (100), mounting plates (300) at both ends of the base plate (200) along its length, a motor (400) on the outer side of one of the mounting plates (300), a lead screw (500) fixedly connected to the output end of the motor (400), the two ends of the lead screw (500) being rotatably connected to the two mounting plates (300) respectively, a movable seat (501) threaded onto the lead screw (500), a connecting frame (800) on top of the movable seat (501), and a pressing wheel (900) rotatably connected to the connecting frame (800). It also includes a guide rod (600), the two ends of which are connected to two mounting plates (300) respectively, and a guide seat (601) is slidably sleeved on the guide rod (600), and the guide seat (601) is connected to the connecting frame (800).

2. The thermoplastic repair pipe I-beam extrusion structure according to claim 1, characterized in that, The bottom of the connecting bracket (800) is higher than the top of the mounting plate (300).

3. The thermoplastic repair pipe I-beam extrusion structure according to claim 1, characterized in that, There are two guide rods (600), which are symmetrically arranged on both sides of the lead screw (500).

4. The thermoplastic repair pipe I-beam extrusion structure according to claim 1, characterized in that, The mounting plate (300) has a through mounting hole, and the guide rod (600) has a plug (604) at each end that can be inserted into the mounting hole. The diameter of the plug (604) is smaller than the diameter of the guide rod (600), and a nut (602) is threaded onto the plug (604).

5. The thermoplastic repair pipe I-beam extrusion structure according to claim 4, characterized in that, A gasket (603) is also fitted onto the plug (604), the gasket (603) being located between the nut (602) and the mounting plate (300).

6. The thermoplastic repair pipe I-beam extrusion structure according to claim 1, characterized in that, The movable base (501) is provided with an extension plate (700), and each end of the extension plate (700) is provided with a touch sensor (701). The touch sensor (701) faces the mounting plate (300) and is electrically connected to the motor (400).

7. The thermoplastic repair pipe I-beam extrusion structure according to claim 1, characterized in that, The connecting frame (800) includes a lower plate (801), one end of which is detachably connected to a connecting plate (802). An upper plate (803) is connected to the end of the connecting plate (802) away from the lower plate (801). The upper plate (803) and the lower plate (801) are connected by a fixed shaft (804), and the fixed shaft (804) is detachably connected to both the upper plate (803) and the lower plate (801). 04) A bearing (805) is sleeved on the bearing (805). A first limiting plate (806) is provided at one end of the bearing (805). The diameter of the first limiting plate (806) is larger than the diameter of the bearing (805). The extrusion wheel (900) is sleeved on the bearing (805). A second limiting plate (807) is threaded on the fixed shaft (804). The second limiting plate (807) is located on the side of the bearing (805) away from the first limiting plate (806).

8. The thermoplastic repair pipe I-beam extrusion structure according to claim 7, characterized in that, The fixed shaft (804) is connected to the upper plate (803) and the lower plate (801) by a key.

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