An extrusion device for processing cable protection pipes

Abstract

This invention belongs to the field of extrusion processing technology and discloses an extrusion device for processing cable protection pipes. It includes a worktable, an extruder body on the surface of the worktable, a conveying assembly on the surface of the worktable, a cooling and forming assembly above the worktable, and a drying mechanism on the surface of the worktable. The drying mechanism includes absorbent cotton strips, a positioning assembly, and a dehydration assembly. A defect detection mechanism is also provided on the surface of the worktable, including a surface bonding assembly and an alarm assembly. The surface bonding assembly is located on the worktable surface and contacts the perimeter of the pipe. By cooperating with the positioning assembly and the dehydration assembly, two absorbent cotton strips can be controlled to wipe and dry the cooling water adhering to the pipe surface from all directions, and the absorbent cotton strips themselves can be dehydrated simultaneously, allowing the absorbent cotton strips to continuously and efficiently wipe and dry the pipe surface.

Description

Technical Field

[0001] This invention relates to the field of extrusion processing technology, specifically to an extrusion device for processing cable protection pipes. Background Technology

[0002] Cable protection pipes are protective conduits used when laying power and communication cables. They are widely used in municipal roads, residential power distribution, industrial plants, rail transit, and other scenarios. Their core function is to provide comprehensive protection for cable lines. They can isolate the cables from soil acid and alkali corrosion and groundwater erosion, resist mechanical damage caused by vehicle crushing and heavy object impacts, and also prevent rodent and insect gnawing, reducing safety hazards such as leakage and short circuits.

[0003] Common materials for cable protection pipes include PVC plastic, CPVC, fiberglass, galvanized steel pipes, and HDPE carbon fiber pipes. Steel pipes have high load-bearing strength and are suitable for heavy-duty road sections, while plastic pipes are lightweight and corrosion-resistant, making them suitable for installation in residential areas and green belts. During construction, they can be directly buried underground, pass through roadbeds, or be embedded in walls, simplifying cable inspection and replacement procedures. Proper use of cable protection pipes can significantly extend the service life of cables, ensuring the long-term stable operation of power and communication lines, making them an indispensable basic component of power infrastructure. During the extrusion process, plastic protection pipes require cooling after extrusion. Currently, this is typically done by directly immersing or spraying them with cooling water.

[0004] The existing cooling method cannot efficiently dry the pipe surface. Simply wiping the water stains with a sponge results in the sponge absorbing more and more moisture, making it unable to continuously dry the pipe and leading to poor performance. Furthermore, existing extrusion equipment cannot monitor the dimensions of the extruded pipes in real time during production. Pipes that are too thick or too thin will affect their normal use. Summary of the Invention

[0005] The purpose of this invention is to provide an extrusion apparatus for processing cable protection pipes, so as to solve the problems mentioned in the background art.

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

[0007] An extrusion device for processing cable protection pipes includes a worktable, an extruder body mounted on the surface of the worktable, a water tank with an open structure mounted on the surface of the worktable, a conveying assembly for controlling the pipe to move linearly in the horizontal direction, a cooling and forming assembly above the worktable for spraying cooling water onto the pipe surface, and a drying mechanism on the surface of the worktable. The drying mechanism includes absorbent cotton belts, a positioning assembly, and a dehydration assembly. Two sets of absorbent cotton belts are provided, and the positioning assembly is located on the surface of the worktable. It is connected to the absorbent cotton strips, and the positioning component is used to position the two sets of absorbent cotton strips on the pipe surface. The two sets of absorbent cotton strips are located on both sides of the pipe in opposite directions. The dehydration component is connected to the positioning component and is used to dehydrate the absorbent cotton strips. The workbench surface is provided with a defect detection mechanism, which includes a surface bonding component and an alarm component. The surface bonding component is located on the workbench surface and is in contact with the perimeter of the pipe. The alarm component is connected to the surface bonding component and monitors the pipe dimensions in real time by cooperating with the surface bonding component.

[0008] As a further embodiment of the present invention: the conveying assembly includes multiple sets of support plates that are fixedly installed on the surface of the workbench and are distributed in pairs opposite to each other. The two oppositely distributed support plates are rotatably mounted with a conveying roller, and the conveying roller has an annular guide groove in the middle.

[0009] As a further aspect of the present invention: the cooling and forming component includes a spray pipe fixedly installed above a water storage tank, a pump is provided on the outside of the water storage tank, the pump is connected to the water storage tank through a water pumping pipe, a water delivery pipe is fixedly installed on the surface of the pump, and the water delivery pipe is connected to the spray pipe.

[0010] As a further aspect of the present invention: the positioning component includes two sets of vertical plates fixedly installed in the water storage tank, which are arranged opposite to each other. The two sets of vertical plates are located on both sides of the pipe. The surface of the vertical plates is provided with a sliding groove. A bearing block is slidably installed in the sliding groove. A compression spring is fixedly installed in the sliding groove. The extension end of the compression spring is connected to the bearing block. A guide roller is rotatably installed between the two oppositely distributed bearing blocks. The absorbent cotton strip is sleeved on the guide roller and the surface of the pipe.

[0011] As a further aspect of the present invention: the dehydration assembly includes two squeezing rollers rotatably mounted between two relatively distributed vertical plates. The two squeezing rollers are located on the inner and outer sides of the absorbent cotton belt, respectively. One end of the squeezing roller extends to the outer side of the vertical plate and is fixedly mounted with a positioning toothed disc. The two positioning toothed discs are meshed with each other. A motor is fixedly mounted on the side wall of the vertical plate, and the output shaft of the motor is connected to one of the squeezing rollers.

[0012] As a further aspect of the present invention: the surface bonding assembly includes a fixing ring fixedly installed above the worktable, a plurality of fixing cylinders arranged in a ring are fixedly installed on the inner side wall of the fixing ring, a positioning block is slidably installed inside the fixing cylinder, a positioning spring is fixedly installed inside the fixing cylinder, the telescopic end of the positioning spring is connected to the positioning block, a positioning rod is fixedly installed on the surface of the positioning block, and the end of the positioning rod away from the positioning block extends to the outside of the fixing cylinder and is rotatably mounted with a detection roller.

[0013] As a further embodiment of the present invention: the warning component includes a second conductive sheet fixedly mounted on the surface of a positioning rod, a support strip provided on the outside of the fixed cylinder, two first conductive sheets fixedly mounted on the surface of the support strip, a controller and an alarm fixedly mounted on the surface of the support strip, the alarm being electrically connected to the controller, the controller being electrically connected to the first conductive sheet, a plurality of threaded holes being provided on the surface of the fixed cylinder, and a positioning stud being detachably mounted on the surface of the support strip.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by setting the cooling molding component and the water storage tank to cooperate with each other, the extruded pipe can be sprayed and cooled, and the cooling water can be recycled, effectively improving the cooling effect.

[0015] By setting up positioning and dehydration components to work together, the two absorbent cotton strips can be controlled to wipe and dry the cooling water adhering to the pipe surface from all angles. At the same time, the absorbent cotton strips themselves can be dehydrated, so that the absorbent cotton strips can continuously and efficiently wipe and dry the pipe surface. This solves the problem that the sponge surface absorbs more and more water, and the sponge cannot continuously dry the cable, resulting in poor performance.

[0016] By combining surface bonding components and alarm components, the outer diameter of the pipe can be automatically monitored in real time during pipe transport. An alarm can be issued promptly when the pipe size is unqualified, allowing staff to remove the defective pipes and effectively improving pipe quality. This solves the problem that existing extrusion equipment cannot monitor the dimensions of extruded pipes in real time during production, leading to pipes that are too thick or too thin, affecting their normal use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an extrusion device for processing cable protection pipes provided in an embodiment of the present invention.

[0018] Figure 2 This is a front view structural diagram of an extrusion device for processing cable protection pipes provided in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the vertical plate and its connection structure in an extrusion device for processing cable protection pipes provided in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the absorbent cotton tape and its connection structure in an extrusion device for processing cable protection pipes provided in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the conveyor roller and its connection structure in an extrusion device for processing cable protection pipes provided in an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the fixing ring and its connection structure in an extrusion device for processing cable protection pipes provided in an embodiment of the present invention.

[0023] Figure 7 for Figure 2 A magnified structural diagram of A in the middle.

[0024] The components are: 1-Workbench, 2-Extruder body, 3-Conveying assembly, 31-Support plate, 32-Transfer roller, 33-Guide groove, 4-Water tank, 5-Cooling and forming assembly, 51-Spray pipe, 52-Pump, 53-Water pipe, 6-Drying mechanism, 61-Absorbent cotton belt, 62-Positioning assembly, 621-Vertical plate, 622-Slide groove, 623-Bearing block, 624-Extrusion spring, 625-Guide roller, 63-Dewatering assembly, 631-Extrusion... Pressure roller, 632-positioning toothed disc, 633-motor, 7-defect detection mechanism, 71-surface bonding assembly, 711-fixing ring, 712-fixing cylinder, 713-positioning block, 714-positioning spring, 715-positioning rod, 716-detection roller, 72-alarm assembly, 721-bearing strip, 722-first conductive sheet, 723-controller, 724-alarm, 725-threaded hole, 726-positioning stud, 727-second conductive sheet. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0026] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] like Figure 1 , Figure 2The diagram shows a structural diagram of an extrusion device for processing cable protection pipes according to an embodiment of the present invention. It includes a workbench 1, an extruder body 2 mounted on the surface of the workbench 1, a water tank 4 with an open structure on the surface of the workbench 1, a conveying assembly 3 for controlling the pipe to move linearly in the horizontal direction, a cooling and forming assembly 5 above the workbench 1 for spraying cooling water onto the pipe surface, and a drying mechanism 6 on the surface of the workbench 1. The drying mechanism 6 includes absorbent cotton belts 61, a positioning assembly 62, and a dehydration assembly 63. Two sets of absorbent cotton belts 61 are provided, and the positioning assembly 62 is located at the workbench 1. The workbench 1 is connected to the absorbent cotton strips 61. The positioning component 62 is used to position the two sets of absorbent cotton strips 61 on the surface of the pipe. The two sets of absorbent cotton strips 61 are located on both sides of the pipe in opposite directions. The dehydration component 63 is connected to the positioning component 62 and is used to dehydrate the absorbent cotton strips 61. The workbench 1 is equipped with a defect detection mechanism 7. The defect detection mechanism 7 includes a surface bonding component 71 and an alarm component 72. The surface bonding component 71 is located on the surface of the workbench 1 and is in contact with the perimeter of the pipe. The alarm component 72 is connected to the surface bonding component 71. The alarm component 72 monitors the dimensions of the pipe in real time by cooperating with the surface bonding component 71.

[0028] A suitable amount of cooling water is injected into the water storage tank 4. During processing, the extruder body 2 pushes out the extruded pipe. The external winding equipment pulls the pipe to move, and the conveying component 3 supports and positions the pipe, allowing it to move in a straight line. While the pipe is moving, the cooling forming component 5 sprays water onto the pipe above the water storage tank 4 to cool it down. At the same time as the water is being sprayed, the water storage tank 4 can recycle the sprayed cooling water. The pipe with the sprayed water attached continues to move forward. The positioning component 62 can position two absorbent cotton strips 61 on the surface of the pipe. The two absorbent cotton strips 61 cover the surface of the pipe in all directions. The dehydration component 63 works in conjunction with the positioning component 62 to control the absorbent cotton strips 61 to rotate continuously along the surface of the pipe. This allows the absorbent cotton strips 61 to contact the surface of the pipe at different positions in sequence. While the absorbent cotton strips 61 are rotating, the dehydration component 63 can squeeze out the cooling water filling the absorbent cotton strips 61, making it easier for the absorbent cotton strips 61 to continuously wipe the cooling water off the surface of the pipe. After being wiped dry, the pipe continues to move forward. The surface bonding component 71 and the alarm component 72 work together to detect the outer diameter of the pipe in real time around the pipe. When the outer diameter of the pipe is too long or too short and does not meet the standard, the alarm component 72 can issue an alarm signal in time, so that the staff can remove the non-standard pipe.

[0029] like Figure 2 , Figure 5 As shown, in a preferred embodiment of the present invention, the conveying assembly 3 includes multiple sets of support plates 31 that are fixedly installed on the surface of the workbench 1 and are distributed in pairs. The two support plates 31 are rotatably mounted together with a conveying roller 32, and the conveying roller 32 has an annular guide groove 33 in the middle.

[0030] The support plate 31 positions the conveyor roller 32, which in turn positions the extruded pipe. The pipe is located in the guide groove 33 in the middle of the conveyor roller 32. When the external winding equipment pulls the pipe, multiple conveyor rollers 32 control the pipe to move along a straight trajectory above the worktable.

[0031] like Figure 1 , Figure 2 As shown, in a preferred embodiment of the present invention, the cooling molding component 5 includes a spray pipe 51 fixedly installed above the water storage tank 4, a pump 52 is provided on the outside of the water storage tank 4, the pump 52 is connected to the water storage tank 4 through a water pumping pipe, and a water delivery pipe 53 is fixedly installed on the surface of the pump 52, which is connected to the spray pipe 51.

[0032] When the pipeline moves, the pump 52 draws cooling water from the water storage tank 4 and further delivers the cooling water to the spray pipe 51 through the water delivery pipe 53. The spray pipe 51 continuously sprays the cooling water downwards onto the pipeline, which can efficiently cool and reduce the temperature of the pipeline.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in a preferred embodiment of the present invention, the positioning component 62 includes two sets of vertical plates 621 fixedly installed in the water storage tank 4, which are arranged opposite to each other. The two sets of vertical plates 621 are located on both sides of the pipe. The surface of the vertical plate 621 is provided with a sliding groove 622. A bearing block 623 is slidably installed in the sliding groove 622. A compression spring 624 is fixedly installed in the sliding groove 622. The extension end of the compression spring 624 is connected to the bearing block 623. A guide roller 625 is rotatably installed between the two oppositely distributed bearing blocks 623. The absorbent cotton strip 61 is sleeved on the guide roller 625 and the surface of the pipe.

[0034] The vertical plate 621 positions the support block 623, and the two relatively distributed support blocks 623 position the guide roller 625. The compression spring 624 applies a pushing force to the support block 623, thereby pushing the guide roller 625 to move away from the pipe. The guide roller 625 and the pipe together position the absorbent cotton belt 61, and the guide roller 625 applies a pushing force to the absorbent cotton belt 61, causing the absorbent cotton belt 61 to fit tightly against the pipe surface. The dewatering assembly 63 controls the rotation of the absorbent cotton belt 61 between the guide roller 625 and the pipe surface.

[0035] like Figure 1 , Figure 3 , Figure 4 As shown, in a preferred embodiment of the present invention, the dehydration assembly 63 includes two squeezing rollers 631 rotatably mounted between two relatively distributed vertical plates 621. The two squeezing rollers 631 are located on the inner and outer sides of the absorbent cotton belt 61, respectively. One end of the squeezing roller 631 extends to the outer side of the vertical plate 621 and is fixedly mounted with a positioning toothed disc 632. The two positioning toothed discs 632 are meshed with each other. A motor 633 is fixedly mounted on the side wall of the vertical plate 621, and the output shaft of the motor 633 is connected to one of the squeezing rollers 631.

[0036] The absorbent cotton belt 61 passes between two squeezing rollers 631, which squeeze the absorbent cotton belt 61. During use, a motor 633 drives one squeezing roller 631 and a positioning gear 632 to rotate. The two positioning gears 632 mesh and drive each other, controlling the two squeezing rollers 631 to rotate in opposite directions. As the two squeezing rollers 631 rotate, they pull the absorbent cotton belt 61 to move synchronously, thus controlling the rotation of the absorbent cotton belt 61 between the guide roller 625 and the pipe surface. The two squeezing rollers 631 squeeze and dehydrate the absorbent cotton belt 61 during rotation, allowing it to continuously wipe the cooling water from the pipe surface.

[0037] like Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, in a preferred embodiment of the present invention, the surface bonding assembly 71 includes a fixing ring 711 fixedly installed above the worktable 1. A plurality of fixing cylinders 712 arranged in a ring are fixedly installed on the inner side wall of the fixing ring 711. A positioning block 713 is slidably installed inside the fixing cylinder 712. A positioning spring 714 is fixedly installed inside the fixing cylinder 712. The telescopic end of the positioning spring 714 is connected to the positioning block 713. A positioning rod 715 is fixedly installed on the surface of the positioning block 713. One end of the positioning rod 715 away from the positioning block 713 extends to the outside of the fixing cylinder 712 and is rotatably mounted with a detection roller 716.

[0038] The fixing ring 711 positions the fixing cylinder 712, which in turn positions the positioning rod 715 and the detection roller 716. A positioning spring 714 applies a thrust to the positioning block 713 within the fixing cylinder 712. Simultaneously, the positioning block 713 applies a thrust to the positioning rod 715 and the detection roller 716, ensuring the detection roller 716 is stably attached to the pipe surface. When the outer diameter of the pipe changes, the positioning rod 715 slides along the surface of the fixing cylinder 712. The warning component 72 can monitor the position and movement range of the positioning rod 715 in real time.

[0039] like Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, in a preferred embodiment of the present invention, the warning component 72 includes a second conductive sheet 727 fixedly mounted on the surface of a positioning rod 715, a support strip 721 provided on the outer side of the fixed cylinder 712, two first conductive sheets 722 arranged in parallel fixedly mounted on the surface of the support strip 721, a controller 723 and an alarm 724 fixedly mounted on the surface of the support strip 721, the alarm 724 being electrically connected to the controller 723, the controller 723 being electrically connected to the first conductive sheets 722, a plurality of threaded holes 725 arranged in parallel on the surface of the fixed cylinder 712, and a positioning stud 726 detachably mounted on the surface of the support strip 721.

[0040] By engaging the positioning stud 726 with the threaded hole 725, the bearing strip 721 can be easily fixed to the side wall of the fixed cylinder 712. The bearing strip 721 positions the two first conductive pieces 722, which are respectively positioned between the second conductive pieces 727. When the positioning rod 715 moves, it drives the second conductive pieces 727 to move synchronously. When the outer diameter of the pipe changes to its limit, the second conductive pieces 727 and the first conductive pieces 722 come into contact with each other to form a circuit. At this time, the controller 723 controls the alarm 724 to issue an alarm signal to remind the staff to check.

[0041] The working principle of this invention is as follows: An appropriate amount of cooling water is injected into the water storage tank 4. During processing, the extruder body 2 pushes out the extruded pipe. An external winding device pulls the pipe forward. The conveyor roller 32 positions the extruded pipe, which is then positioned within the guide groove 33 in the middle of the conveyor roller 32. As the external winding device pulls the pipe forward, multiple conveyor rollers 32 control the pipe to move along a straight trajectory above the worktable. The pump 52 draws cooling water from the water storage tank 4 and further delivers it to the spray pipe 51 through the water pipe 53. The spray pipe 51 continuously sprays cooling water downwards onto the pipe, effectively cooling it.

[0042] The pipe covered with sprayed water continues to move forward. Motor 633 drives a squeezing roller 631 and a positioning gear 632 to rotate. The two positioning gears 632 mesh and drive each other, controlling the two squeezing rollers 631 to rotate in opposite directions. As the two squeezing rollers 631 rotate, they pull the absorbent cotton belt 61 to move synchronously, thus controlling the absorbent cotton belt 61 to rotate between the guide roller 625 and the pipe surface. The two squeezing rollers 631 squeeze and dehydrate the absorbent cotton belt 61 during rotation, allowing it to continuously wipe the cooling water off the pipe surface.

[0043] The positioning spring 714 applies a pushing force to the positioning block 713 within the fixed cylinder 712. Simultaneously, the positioning block 713 applies a pushing force to the positioning rod 715 and the detection roller 716, causing the detection roller 716 to stably adhere to the pipe surface. When the outer diameter of the pipe changes, the positioning rod 715 slides along the surface of the fixed cylinder 712. When the change in the outer diameter reaches its limit, the second conductive sheet 727 and the first conductive sheet 722 adhere to each other, forming a circuit. At this point, the controller 723 controls the alarm 724 to issue an alarm signal, prompting personnel to check the situation.

[0044] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An extrusion device for processing cable protection pipes, comprising a workbench (1), an extruder body (2) disposed on the surface of the workbench (1), a water storage tank (4) disposed on the surface of the workbench (1), the water storage tank (4) being an open structure, a conveying assembly (3) disposed on the surface of the workbench (1), the conveying assembly (3) being used to control the pipe to move in a straight line in the horizontal direction, a cooling and forming assembly (5) disposed above the workbench (1), the cooling and forming assembly (5) being used to spray cooling water onto the surface of the pipe, a drying mechanism (6) disposed on the surface of the workbench (1), the drying mechanism (6) comprising an absorbent cotton belt (61), a positioning assembly (62) and a dehydration assembly (63), the absorbent cotton belt (61) being provided in two sets, the positioning assembly (62) being located on the surface of the workbench (1) and Connected to the absorbent cotton strip (61), the positioning component (62) is used to position the two sets of absorbent cotton strips (61) on the surface of the pipe. The two sets of absorbent cotton strips (61) are located on both sides of the pipe in opposite directions. The dehydration component (63) is connected to the positioning component (62) and is used to dehydrate the absorbent cotton strips (61). The surface of the workbench (1) is provided with a defect detection mechanism (7). The defect detection mechanism (7) includes a surface bonding component (71) and an alarm component (72). The surface bonding component (71) is located on the surface of the workbench (1) and is in contact with the periphery of the pipe. The alarm component (72) is connected to the surface bonding component (71). The alarm component (72) monitors the size of the pipe in real time by cooperating with the surface bonding component (71).

2. The extrusion apparatus for processing cable protection pipes according to claim 1, characterized in that, The conveying assembly (3) includes multiple sets of support plates (31) fixedly installed on the surface of the workbench (1) and arranged in pairs opposite each other. The two oppositely distributed support plates (31) are rotatably mounted with a conveying roller (32), and the conveying roller (32) has an annular guide groove (33) in the middle.

3. The extrusion apparatus for processing cable protection pipes according to claim 1, characterized in that, The cooling and forming component (5) includes a spray pipe (51) fixedly installed above a water storage tank (4). A pump (52) is provided on the outside of the water storage tank (4). The pump (52) is connected to the water storage tank (4) through a water pumping pipe. A water delivery pipe (53) is fixedly installed on the surface of the pump (52). The water delivery pipe (53) is connected to the spray pipe (51).

4. The extrusion apparatus for processing cable protection pipes according to claim 1, characterized in that, The positioning component (62) includes two sets of vertical plates (621) fixedly installed in the water storage tank (4) and arranged opposite each other. The two sets of vertical plates (621) are located on both sides of the pipe. The surface of the vertical plate (621) is provided with a sliding groove (622). A bearing block (623) is slidably installed in the sliding groove (622). A compression spring (624) is fixedly installed in the sliding groove (622). The extension end of the compression spring (624) is connected to the bearing block (623). A guide roller (625) is rotatably installed between the two oppositely distributed bearing blocks (623). The absorbent cotton strip (61) is sleeved on the guide roller (625) and the surface of the pipe.

5. The extrusion apparatus for processing cable protection pipes according to claim 4, characterized in that, The dehydration assembly (63) includes two squeezing rollers (631) rotatably mounted between two relatively distributed vertical plates (621). The two squeezing rollers (631) are located on the inner and outer sides of the absorbent cotton belt (61), respectively. One end of the squeezing roller (631) extends to the outer side of the vertical plate (621) and is fixedly mounted with a positioning toothed disc (632). The two positioning toothed discs (632) are meshed with each other. A motor (633) is fixedly mounted on the side wall of the vertical plate (621). The output shaft of the motor (633) is connected to one of the squeezing rollers (631).

6. The extrusion apparatus for processing cable protection pipes according to claim 1, characterized in that, The surface bonding assembly (71) includes a fixing ring (711) fixedly installed above the worktable (1). Multiple fixing cylinders (712) arranged in a ring are fixedly installed on the inner side wall of the fixing ring (711). A positioning block (713) is slidably installed inside the fixing cylinder (712). A positioning spring (714) is fixedly installed inside the fixing cylinder (712). The telescopic end of the positioning spring (714) is connected to the positioning block (713). A positioning rod (715) is fixedly installed on the surface of the positioning block (713). One end of the positioning rod (715) away from the positioning block (713) extends to the outside of the fixing cylinder (712) and is rotatably mounted with a detection roller (716).

7. The extrusion apparatus for processing cable protection pipes according to claim 6, characterized in that, The warning assembly (72) includes a second conductive plate (727) fixedly mounted on the surface of a positioning rod (715). A support strip (721) is provided on the outside of the fixed cylinder (712). Two first conductive plates (722) are fixedly mounted on the surface of the support strip (721). A controller (723) and an alarm (724) are fixedly mounted on the surface of the support strip (721). The alarm (724) is electrically connected to the controller (723). The controller (723) is electrically connected to the first conductive plate (722). A plurality of threaded holes (725) are opened on the surface of the fixed cylinder (712). A positioning stud (726) is detachably mounted on the surface of the support strip (721).

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