PE pipe bending machine

Abstract

The utility model discloses a PE pipe bending machine which comprises a working table, and a supporting seat is arranged above a panel of the working table. A telescopic cylinder is arranged at the upper end of the supporting seat; a sliding seat is arranged at the front end of the supporting seat; a fixed block is arranged above the front end of the sliding seat; the upper end of the fixed block is fixedly connected with the top end of a piston rod of the telescopic cylinder through a floating joint; the fixed block is connected with a movable block through a limiting guide rod, a pressing plate is arranged at the lower end of the movable block, and extrusion blocks are arranged on the two sides of the movable block respectively. Through mechanical structures such as the telescopic cylinder, the sliding seat, the guide shaft and the movable block, the automatic bending process of the PE pipe is realized, the labor intensity of manual operation is obviously reduced, and the production efficiency is improved; wherein a sliding seat is in sliding connection with a guide shaft, and a limiting guide rod is matched with a movable hole, so that the stability and the precision in the bending process are ensured, and a PE pipe can be accurately bent according to a preset shape; and the automation degree and the production efficiency of PE pipe bending operation are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe processing, in particular to a PE pipe bending machine. Background Art

[0002] PE pipe, a key member of the plastic pipe family, plays a crucial role in water supply and drainage system construction thanks to its superior strength, excellent corrosion resistance, and non-toxic and environmentally friendly properties. Its rust resistance makes it an ideal alternative to traditional iron pipes, making it widely used in various engineering projects.

[0003] However, in the processing of PE pipes, bending presents a technical challenge. Traditional PE pipe bending operations are highly reliant on manual labor, involving a series of complex processes such as straightening, cutting, heating, bending, and shaping. This operating mode not only significantly increases the physical burden on workers and reduces production efficiency, but also poses potential safety risks that cannot be ignored. With the rapid development of industrial automation technology, although the bending machines on the current market have improved, they still suffer from insufficient automation. In particular, after being bent and formed, PE pipes are often difficult to remove smoothly from the forming groove, which brings many inconveniences to the cutting process and further restricts the improvement of production efficiency and product quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a PE pipe bending machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PE pipe bending machine, comprising a workbench, wherein a support seat is provided above the panel of the workbench; the support seat is an "I"-shaped structure, wherein the lower end of the support seat is fixedly connected to the workbench; the upper end of the support seat is provided with a telescopic cylinder, wherein the top end of the piston rod of the telescopic cylinder passes through the upper end of the support seat and extends downward; a sliding seat is provided at the front end of the support seat, wherein the sliding seat has two sliding holes symmetrically provided in the vertical direction; a guide shaft is provided in the sliding hole, wherein the guide shaft is slidably connected to the sliding hole, and the two ends of the guide shaft are fixedly connected to the upper and lower ends of the support seat respectively; a fixed block is provided above the front end of the sliding seat, wherein the upper end of the fixed block It is fixedly connected to the top of the piston rod of the telescopic cylinder through a floating joint; two through holes are vertically opened on the fixed block, wherein a limit guide rod is provided in the through hole; the upper end of the limit guide rod passes through the upper end of the support seat and extends upward, wherein the lower end of the limit guide rod passes through the through hole and is connected to the movable block; the lower end of the movable block is provided with a pressure plate, wherein the upper end of the pressure plate is connected to the movable block, and a limit groove is provided at the lower end of the pressure plate; extrusion blocks are respectively provided on both sides of the movable block, wherein the extrusion block is fixedly connected to the sliding seat, and a first forming groove is provided under the extrusion block; the lower end of the support seat is provided with a forming table, wherein the upper end of the forming table is provided with a second forming groove, and the second forming groove is adapted to the first forming groove and the limit groove.

[0006] Preferably, the movable block is provided with a movable hole in the vertical direction that is compatible with the limiting guide rod, wherein the upper end of the movable hole has a larger aperture and the lower end has a smaller aperture; a support spring is provided at the upper end of the movable hole, wherein the support spring is sleeved on the outer wall of the limiting guide rod; the upper end of the support spring is connected to the fixed block, wherein the lower end of the support spring abuts against the bottom wall of the movable hole.

[0007] Preferably, a stepped hole is vertically opened in the middle of the movable block, wherein the aperture of the upper end of the stepped hole is small and the aperture of the lower end is large; a round-head connecting rod is provided in the stepped hole, wherein the upper end of the round-head connecting rod passes through the stepped hole and extends upward to be connected with the fixed block, and the round head end of the round-head connecting rod is arranged in the large aperture of the stepped hole and is movably connected with it.

[0008] Preferably, a heating wire is provided in the forming table, and a heat conducting plate is provided in the second forming tank.

[0009] Preferably, a discharge cylinder is provided at the rear end of the support seat, wherein the cylinder body of the discharge cylinder is fixedly connected to the support seat through a mounting plate; a "U"-shaped push plate is provided at the top end of the piston rod of the discharge cylinder, wherein both side edges of the "U"-shaped push plate are triangular structures; the front end of the "U"-shaped push plate extends to above the forming table, wherein a guide groove adapted to the "U"-shaped push plate is provided on the forming table.

[0010] Preferably, the guide groove and the second forming groove are perpendicular to each other, wherein the depth of the guide groove is equivalent to the depth of the second forming groove.

[0011] Preferably, a material guide plate is provided below the support seat on one side close to the forming table, wherein a material storage box is provided below the discharge port of the material guide plate.

[0012] Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention realizes the automatic bending process of PE pipes through the mechanical structures such as telescopic cylinder, sliding seat, guide shaft and movable block, which significantly reduces the labor intensity of manual operation and improves production efficiency; the sliding connection between the sliding seat and the guide shaft, the matching design of the limit guide rod and the movable hole ensure the stability and accuracy of the bending process, so that the PE pipe can be accurately bent according to the predetermined shape; the design of the blanking cylinder and the "U"-shaped push plate effectively solves the problem that the PE pipe after bending is easily embedded in the forming groove, making the blanking process smoother , which improves the overall smoothness of the production line; the setting of the heating wire and the heat conduction plate in the forming table ensures that the PE pipe is evenly heated before bending, which is beneficial to the plastic deformation of the material. At the same time, the adaptability of the second forming groove to the first forming groove and the limit groove ensures the forming quality; the configuration of the guide plate and the storage box realizes the orderly collection and storage of the bent PE pipes, further improving the organizational efficiency and space utilization of the production line; the utility model not only greatly improves the degree of automation and production efficiency of the PE pipe bending operation, but also significantly enhances the safety and convenience of the operation process, and greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the support seat of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the connection between the fixed block and the movable block of the utility model;

[0016] Figure 4 This is a schematic structural diagram of the connection between the extrusion block and the movable block of the utility model;

[0017] Figure 5 This is a schematic diagram of the connection structure between the blanking cylinder and the support seat of the utility model;

[0018] Figure 6 It is a schematic diagram of the internal structure of the forming table of the present invention.

[0019] Among them: 1. Workbench; 2. Support seat; 3. Telescopic cylinder; 4. Sliding seat; 5. Sliding hole; 6. Guide shaft; 7. Fixed block; 8. Through hole; 9. Limit guide rod; 10. Movable block; 11. Pressing plate; 12. Limiting groove; 13. Extrusion block; 14. First forming groove; 15. Forming table; 16. Second forming groove; 17. Movable hole; 18. Support spring; 19. Stepped hole; 20. Round head connecting rod; 21. Heating wire; 22. Heat conducting plate; 23. Unloading cylinder; 24. Mounting plate; 25. "U"-shaped pushing plate; 26. Guide groove; 27. Guide plate; 28. Storage box. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings.

[0021] Please refer to Figures 1 to 6 To achieve the above objectives, the present invention provides the following technical solutions:

[0022] A PE pipe bending machine comprises a workbench 1, wherein a support base 2 is provided above the panel of the workbench 1; the support base 2 is an "I"-shaped structure, wherein the lower end of the support base 2 is fixedly connected to the workbench 1; a telescopic cylinder 3 is provided at the upper end of the support base 2, wherein the top end of the piston rod of the telescopic cylinder 3 passes through the upper end of the support base 2 and extends downward; a sliding base 4 is provided at the front end of the support base 2, wherein the sliding base 4 has two sliding holes 5 symmetrically provided in the vertical direction; a guide shaft 6 is provided in the sliding hole 5, wherein the guide shaft 6 is slidably connected to the sliding hole 5, and the two ends of the guide shaft 6 are respectively fixedly connected to the upper and lower ends of the support base 2; a fixed block 7 is provided above the front end of the sliding base 4, wherein the upper end of the fixed block 7 is fixedly connected to the top end of the piston rod of the telescopic cylinder 3 through a floating joint; Two through holes 8 are vertically provided on the fixed block 7, wherein a limiting guide rod 9 is provided in the through hole 8; the upper end of the limiting guide rod 9 passes through the upper end of the support seat 2 and extends upward, wherein the lower end of the limiting guide rod 9 passes through the through hole 8 and is connected to a movable block 10; a pressing plate 11 is provided at the lower end of the movable block 10, wherein the upper end of the pressing plate 11 is connected to the movable block 10, and a limiting groove 12 is provided at the lower end of the pressing plate 11; extrusion blocks 13 are respectively provided on both sides of the movable block 10, wherein the extrusion block 13 is fixedly connected to the sliding seat 4, and a first forming groove 14 is provided below the extrusion block 13; a forming table 15 is provided at the lower end of the support seat 2, wherein a second forming groove 16 is provided at the upper end of the forming table 15, and the second forming groove 16 is adapted to the first forming groove 14 and the limiting groove 12.

[0023] During operation, the PE pipe is first placed on the forming table 15. The upper end of the forming table 15 is provided with a second forming groove 16 adapted to the subsequent bending process; the core components of the bending machine include a support seat 2, a telescopic cylinder 3, a sliding seat 4, a fixed block 7, a limiting guide rod 9, a movable block 10, a pressing plate 11 and an extrusion block 13; the telescopic cylinder 3 is started, and controls the piston rod to push the fixed block 7 downward through the floating joint. Since the fixed block 7 and the sliding seat 4 are slidably connected through the guide shaft 6, the stable movement of the sliding seat 4 in the vertical direction is ensured; at the same time, the limiting guide rod 9 on the fixed block 7 also moves downward, driving the movable block 10 and the pressing plate 11 to move downward together; in the process of the pressing plate 11 moving downward, its lower end The limiting groove 12 contacts the PE tube and gradually applies pressure; at this time, the extrusion block 13 at the front end of the sliding seat 4 also begins to squeeze the PE tube, and the first forming groove 14 provided below the extrusion block 13 and the second forming groove 16 on the forming table 15 act together on the PE tube to bend it according to a predetermined shape; as the piston rod of the telescopic cylinder 3 continues to push down, the extrusion force and bending force of the pressing plate 11 and the extrusion block 13 on the PE tube gradually increase until the PE tube is completely bent into the required shape; after the bending is completed, the piston rod of the telescopic cylinder 3 retracts, driving the fixed block 7, the movable block 10 and the pressing plate 11 and other components to return to the initial position. At this time, the PE tube that has been bent can be taken out and prepared for the next bending operation.

[0024] Please refer to Figure 3 、 Figure 4 As an embodiment of the present utility model, the movable block 10 is provided with a movable hole 17 in the vertical direction that is adapted to the limiting guide rod 9, wherein the upper end of the movable hole 17 has a larger aperture and the lower end has a smaller aperture; the upper end of the movable hole 17 is provided with a support spring 18, wherein the support spring 18 is sleeved on the outer wall of the limiting guide rod 9; the upper end of the support spring 18 is connected to the fixed block 7, wherein the lower end of the support spring 18 abuts against the bottom wall of the movable hole 17.

[0025] In the above-mentioned scheme, the movable hole 17 vertically opened inside the movable block 10 is to accommodate the limiting guide rod 9 and allow it to move up and down within a certain range. This design ensures that when the telescopic cylinder 3 pushes the fixed block 7 and the limiting guide rod 9 connected thereto to move downward, the movable block 10 can also smoothly descend; the upper end of the movable hole 17 has a larger aperture, which is convenient for the insertion and initial positioning of the limiting guide rod 9, while the lower end has a smaller aperture, which provides the necessary guidance and restriction to prevent the movable block 10 from shaking or deflecting during the movement; the support spring 18 is cleverly sleeved on the outer wall of the limiting guide rod 9, with the upper end connected to the lower end of the fixed block 7 and the lower end abutting against the bottom wall of the movable hole 17. This configuration has several important functions: buffering and shock absorption: during the bending process When the pressure plate 11 and the extrusion block 13 apply pressure to the PE pipe, a certain reaction force will be generated. The support spring 18 can effectively absorb these reaction forces, play a role in buffering and shock absorption, and protect mechanical components from impact damage; automatic reset: after the bending operation is completed, the piston rod of the telescopic cylinder 3 retracts. At this time, the support spring 18 uses its elastic potential energy to push the movable block 10 and the pressure plate 11 to move upward to achieve automatic reset. This design simplifies the operation process and improves work efficiency; adjust the pressure: the stiffness and preload of the support spring 18 can be adjusted according to actual needs, so as to achieve precise control of the pressure applied during the bending process, which helps to ensure that the PE pipe can be bent according to the predetermined shape and angle while avoiding excessive deformation or damage.

[0026] The combined use of the movable hole 17 and the support spring 18 not only improves the stability and durability of the PE pipe bending machine, but also enhances its degree of automation and operational flexibility. By precisely controlling the pressure and displacement during the bending process, this design ensures that the PE pipe can achieve high-quality bending effects while reducing the operating difficulty and labor intensity of workers.

[0027] Please refer to Figure 3 、 Figure 4 As an embodiment of the present utility model, a stepped hole 19 is vertically opened in the middle of the movable block 10, wherein the aperture of the upper end of the stepped hole 19 is small and the aperture of the lower end is large; a round-head connecting rod 20 is provided in the stepped hole 19, wherein the upper end of the round-head connecting rod 20 passes through the stepped hole 19 and extends upward to be connected with the fixed block 7, and the round head end of the round-head connecting rod 20 is arranged in the large aperture of the stepped hole 19 and is movably connected thereto.

[0028] In the above-mentioned scheme, the stepped hole 19 vertically opened inside the movable block 10 is a hole with different diameter parts, the upper end of which has a smaller aperture and the lower end has a larger aperture. This design has several important purposes: connection positioning: the small aperture part at the upper end of the stepped hole 19 is used to accurately locate and fix the upper end of the round head connecting rod 20, ensuring that the round head connecting rod 20 can be stably inserted and retained in the stepped hole 19; activity space: the large aperture part at the lower end of the stepped hole 19 provides sufficient activity space for the round head end of the round head connecting rod 20, which allows the round head connecting rod 20 to swing or rotate within a certain range when subjected to external force without being affected by the wall of the stepped hole 19. Obstruction; the round-head connecting rod 20 is a rod-shaped component with a round-head end, the upper end of the round-head connecting rod 20 passes through the stepped hole 19 and extends upward to be connected to the fixed block 7; this connection method allows the movable block 10 to form a whole with the fixed block 7 through the round-head connecting rod 20, thereby realizing the transmission of force and synchronization of movement; the round-head end of the round-head connecting rod 20 is arranged in the large aperture of the stepped hole 19 and forms a movable connection therewith; this movable connection allows the round-head connecting rod 20 to have a certain degree of freedom of movement while maintaining connection with the movable block 10, which helps to adapt to slight deformation or displacement of mechanical parts during operation and improve the stability and durability of the machine.

[0029] The combined use of the stepped hole 19 and the round-head connecting rod 20 realizes flexible connection and stable transmission between the movable block 10 and the fixed block 7; this design not only improves the reliability and durability of the mechanical components, but also enhances the overall performance and adaptability of the mechanical system. By precisely controlling the size and shape of the stepped hole 19 and the round-head connecting rod 20, precise control of the mechanical motion trajectory and force transmission path can be achieved, thereby meeting the needs of various complex working conditions.

[0030] Please refer to the figure Figure 6 As an embodiment of the present invention, a heating wire 21 is provided in the forming table 15 , and a heat conducting plate 22 is provided in the second forming groove 16 .

[0031] In the above-described scheme, the heating wire 21 is the core component of the heating system and is evenly arranged inside the forming table 15, wherein the heating wire 21 is connected to an external power supply through a wire; when the heating wire 21 is energized, the heating wire 21 generates heat and transfers the heat to the forming table 15 and the second forming groove 16 thereon through thermal radiation and heat conduction; the heat conducting plate 22 is cleverly arranged in the second forming groove 16, in direct contact with the heating wire 21 and the PE tube, wherein the heat conducting plate 22 has two main functions: heat transfer: the heat conducting plate 22 has good thermal conductivity and can quickly transfer the heat generated by the heating wire 21 to the second forming groove 16 and the PE tube placed therein, thereby ensuring that the PE tube can reach an appropriate temperature before bending, thereby improving its plasticity and easy deformation properties; temperature uniformity: the design of the heat conducting plate 22 helps to achieve uniform heat distribution, avoiding local overheating or uneven temperature during the heating process; this helps to ensure that the PE tube can be evenly heated during the bending process, thereby obtaining a better bending effect and more consistent finished product quality.

[0032] Before the bending operation begins, the heating wire 21 is powered on for heating, and the heat generated is transferred to the second forming groove 16 and the PE tube through the heat conducting plate 22; as the temperature rises, the plasticity of the PE tube increases, becoming softer and easier to deform; at this time, the bending machine can start the bending operation, and the PE tube can achieve the required bending shape under lower stress; in order to ensure the accuracy and safety of the heating process, a temperature control system is usually equipped to monitor and adjust the working temperature of the heating wire 21; the temperature control system can adjust the power output of the heating wire 21 according to the preset heating curve or real-time feedback temperature information, thereby achieving precise control of the heating process.

[0033] Through the synergistic effect of the electric heating wire 21 and the heat conducting plate 22, the PE pipe bending machine can preheat the PE pipe before bending to improve its plasticity and easy deformation properties; this not only helps to achieve better bending effects and more consistent finished product quality, but also reduces stress and deformation during the bending process and extends the service life of mechanical components; at the same time, the introduction of the temperature control system further improves the accuracy and safety of the heating process.

[0034] See also Figure 5As an embodiment of the present utility model, a blanking cylinder 23 is provided at the rear end of the support base 2, wherein the cylinder body of the blanking cylinder 23 is fixedly connected to the support base 2 through a mounting plate 24; a "U"-shaped pushing plate 25 is provided at the top end of the piston rod of the blanking cylinder 23, wherein both sides of the "U"-shaped pushing plate 25 are triangular structures; the front end of the "U"-shaped pushing plate 25 extends to above the forming table 15, wherein the forming table 15 is provided with a guide groove 26 adapted to the "U"-shaped pushing plate 25; the guide groove 26 and the second forming groove 16 are perpendicular to each other, wherein the depth of the guide groove 26 is equivalent to the depth of the second forming groove 16.

[0035] In the above-mentioned scheme, the unloading cylinder 23 is the power source of the unloading mechanism, and its cylinder body is firmly fixed on the support base 2 through the mounting plate 24; when the unloading cylinder 23 receives the start signal, the unloading cylinder 23 will drive the piston rod to move linearly along the axis direction of the cylinder body, and this movement provides the necessary thrust for the "U"-shaped pusher plate 25, enabling it to perform the pushing action; the "U"-shaped pusher plate 25 is a key component of the unloading mechanism, and its shape design cleverly adapts to the shape and size of the PE pipe; the two side edges of the "U"-shaped pusher plate 25 adopt a triangular structure, which design not only enhances the rigidity and stability of the "U"-shaped pusher plate 25, but also helps to reduce the friction resistance between the PE pipe and the "U"-shaped pusher plate 25 during the pushing process; the front end of the "U"-shaped pusher plate 25 extends to the forming table 15 and is adapted to the guide groove 26 on the forming table 15. This design ensures that the "U"-shaped pusher plate 25 can be accurately inserted under the PE pipe and pushed out from the forming table 15; the guide groove 26 opened on the forming table 15 is an important component of the unloading mechanism. The guide groove 26 is adapted to the "U"-shaped pusher plate 25, providing a precise guide for the "U"-shaped pusher plate 25. The guide groove 26 and the second forming groove 16 are perpendicular to each other. This layout ensures that the "U"-shaped pusher plate 25 will not interfere with the second forming groove 16 when pushing out the PE pipe; the depth of the guide groove 26 is equivalent to the depth of the second forming groove 16. This design ensures that the "U"-shaped pusher plate 25 can be fully inserted under the PE pipe and smoothly pushed out of the forming table 15.

[0036] After the PE pipe is bent, the unloading cylinder 23 receives a start signal and its piston rod begins to extend; at this time, the "U"-shaped push plate 25 moves forward along the direction of the guide groove 26 and is gradually inserted under the PE pipe; as the "U"-shaped push plate 25 continues to move, the PE pipe is gradually lifted and slides forward along the surface of the forming table 15 until it is completely pushed out of the forming table 15; through the coordinated action of the unloading cylinder 23 and the "U"-shaped push plate 25, the unloading mechanism can efficiently and accurately push the bent PE pipe from the forming table 15; this design not only improves production efficiency, but also ensures that the PE pipe will not be damaged or deformed during the pushing process; at the same time, the introduction of the guide groove 26 further improves the accuracy and stability of the unloading process.

[0037] See also Figure 1 As an embodiment of the present invention, a material guide plate 27 is provided below the support base 2 on the side close to the forming table 15, wherein a material storage box 28 is provided below the discharge port of the material guide plate 27.

[0038] In the above-mentioned scheme, the guide plate 27 is cleverly arranged below the side of the support base 2 close to the forming table 15. Its design purpose is to guide the PE tube pushed out from the forming table 15 to a predetermined direction; the guide plate 27 usually has a certain inclination angle to ensure that the PE tube can slide smoothly along its surface under the action of gravity; the material of the guide plate 27 is usually selected from wear-resistant and corrosion-resistant materials to cope with the friction and wear that may be generated by the PE tube during the sliding process; at the same time, the surface of the guide plate 27 is usually treated with anti-slip treatment to increase the friction between the PE tube and it to prevent the PE tube from slipping or rolling during the sliding process; the storage box 28 is placed below the discharge port of the guide plate 27 to collect the PE tube that slides off the guide plate 27; the design of the storage box 28 usually takes into account the shape, size and quantity of the PE tube to ensure that it can accommodate a sufficient number of PE tubes and is easy to pick up and transport; the material of the storage box 28 is usually selected from strong and durable materials to cope with the weight of the PE tube and possible impact. At the same time, the interior of the storage box 28 is usually treated with anti-slip and anti-collision treatment to protect the PE pipe from damage during storage; through the coordinated action of the guide plate 27 and the storage box 28, the material export system can efficiently and orderly export and collect the bent PE pipe from the forming table 15; this design not only improves production efficiency, but also ensures that the PE pipe will not be damaged or confused during the export and collection process; at the same time, the introduction of the storage box 28 makes the storage and transportation of PE pipes more convenient and efficient.

[0039] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A PE pipe bending machine, comprising a workbench (1), wherein a support base (2) is provided above a panel of the workbench (1); the support base (2) is an "I"-shaped structure, wherein the lower end of the support base (2) is fixedly connected to the workbench (1); characterized in that, The upper end of the support seat (2) is provided with a telescopic cylinder (3), wherein the top end of the piston rod of the telescopic cylinder (3) passes through the upper end of the support seat (2) and extends downward; the front end of the support seat (2) is provided with a sliding seat (4), wherein the sliding seat (4) is symmetrically provided with two sliding holes (5) in the vertical direction; a guide shaft (6) is provided in the sliding hole (5), wherein the guide shaft (6) is slidably connected to the sliding hole (5), and the two ends of the guide shaft (6) are fixedly connected to the upper end and the lower end of the support seat (2) respectively; a fixed block (7) is provided above the front end of the sliding seat (4), wherein the upper end of the fixed block (7) is fixedly connected to the top end of the piston rod of the telescopic cylinder (3) through a floating joint; two through holes (8) are vertically provided on the fixed block (7), wherein a limit guide rod (9) is provided in the through hole (8); the limit The upper end of the guide rod (9) passes through the upper end of the support seat (2) and extends upward, wherein the lower end of the limiting guide rod (9) passes through the through hole (8) and is connected to the movable block (10); the lower end of the movable block (10) is provided with a pressing plate (11), wherein the upper end of the pressing plate (11) is connected to the movable block (10), and the lower end of the pressing plate (11) is provided with a limiting groove (12); the two sides of the movable block (10) are respectively provided with extrusion blocks (13), wherein the extrusion blocks (13) are fixedly connected to the sliding seat (4), and a first forming groove (14) is provided below the extrusion blocks (13); the lower end of the support seat (2) is provided with a forming table (15), wherein the upper end of the forming table (15) is provided with a second forming groove (16), and the second forming groove (16) is adapted to the first forming groove (14) and the limiting groove (12).

2. A PE pipe bending machine according to claim 1, characterized in that: The movable block (10) is provided with a movable hole (17) in a vertical direction, which is adapted to the limiting guide rod (9), wherein the upper end of the movable hole (17) has a larger hole diameter and the lower end has a smaller hole diameter; the upper end of the movable hole (17) is provided with a support spring (18), wherein the support spring (18) is sleeved on the outer wall of the limiting guide rod (9); the upper end of the support spring (18) is connected to the fixed block (7), wherein the lower end of the support spring (18) abuts against the bottom wall of the movable hole (17).

3. A PE pipe bending machine according to claim 1, characterized in that: A stepped hole (19) is vertically opened in the middle of the movable block (10), wherein the aperture of the stepped hole (19) is small at the upper end and large at the lower end; a round-head connecting rod (20) is provided in the stepped hole (19), wherein the upper end of the round-head connecting rod (20) passes through the stepped hole (19) and extends upward to be connected to the fixed block (7), and the round end of the round-head connecting rod (20) is arranged in the large aperture of the stepped hole (19) and is movably connected thereto.

4. A PE pipe bending machine according to claim 1, characterized in that: A heating wire (21) is provided in the forming table (15), and a heat conducting plate (22) is provided in the second forming groove (16).

5. A PE pipe bending machine according to claim 1, characterized in that: A blanking cylinder (23) is provided at the rear end of the support seat (2), wherein the cylinder body of the blanking cylinder (23) is fixedly connected to the support seat (2) through a mounting plate (24); a "U"-shaped push plate (25) is provided at the top end of the piston rod of the blanking cylinder (23), wherein both sides of the "U"-shaped push plate (25) are triangular structures; the front end of the "U"-shaped push plate (25) extends above the forming table (15), wherein a guide groove (26) adapted to the "U"-shaped push plate (25) is provided on the forming table (15).

6. A PE pipe bending machine according to claim 5, characterized in that: The guide groove (26) and the second forming groove (16) are perpendicular to each other, wherein the depth of the guide groove (26) is equivalent to the depth of the second forming groove (16).

7. A PE pipe bending machine according to claim 1, characterized in that: A material guide plate (27) is provided below the support seat (2) on one side close to the forming table (15), wherein a material storage box (28) is provided below the discharge port of the material guide plate (27).

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