An integrated processing device for PE pipeline automatic production assembly line

Abstract

This invention relates to the field of PE pipe manufacturing technology and discloses an integrated processing device for an automated PE pipe production line. The device includes a main body, a moving mechanism at the top of the main body, and an elastic expansion centering mechanism at the top of the moving mechanism. The elastic expansion centering mechanism includes a conical column, a sleeve, a fixed frame, a conical moving block, a tension spring, a limiting strip, and a conical hole. A flaring mandrel is located at the top of the rotary turret, and a radial saw is located at the top of the rotary turret. This solution uses an elastic expansion centering mechanism to tighten the pipe from the inside, which helps avoid elliptical deformation and center offset caused by external clamping, improving pipe end concentricity. It also integrates cutting, chamfering, and flaring into one unit, allowing multiple processes to be completed in a single clamping operation, reducing equipment footprint and cycle time losses. The floating tool holder, combined with springs, compensates for uneven pipe ends, resulting in more uniform chamfering. The flaring mandrel utilizes the process interval for preheating, ensuring smoother connections.

Description

Technical Field

[0001] This invention relates to the field of PE pipe manufacturing technology, specifically to an integrated processing device for an automated PE pipe production line. Background Technology

[0002] With the continuous advancement of urbanization and infrastructure upgrades, PE pipes, with their advantages of corrosion resistance, flexibility, and environmental friendliness, are experiencing a surge in demand in municipal water supply and drainage, gas transmission, and agricultural irrigation. Traditional PE pipe production often employs a decentralized equipment layout, with processes such as extrusion molding, cooling and shaping, traction cutting, and end processing operating independently. This requires manual or auxiliary equipment to transport semi-finished products, resulting in poor process integration, low production efficiency, and issues such as pipe scratches, dimensional deviations, and unstable performance due to disconnected processes. Furthermore, independent equipment occupies a large space, consumes a lot of energy, and is cumbersome to maintain. Frequent manual intervention can easily lead to errors, making it difficult to meet the requirements of large-scale, high-quality, and high-efficiency modern production. The industry's demand for automated and integrated production equipment is becoming increasingly urgent. Against this backdrop, the development of an integrated processing device for automated PE pipe production lines that combines multiple processes and enables continuous and stable operation has become a key direction for breaking through production bottlenecks and enhancing industrial competitiveness.

[0003] The main drawback of the existing technology is that PE pipe processing uses three independent stations for cutting, chamfering, and flaring, which requires multiple clamping and transfers. Each time the station is changed, the clamping position and center of the pipe will shift slightly, resulting in the pipe end being misaligned with the pipe body after processing, affecting the subsequent welding quality. At the same time, the traditional external clamping method is prone to flattening thin-walled PE pipes, causing the pipe end to be deformed into an ellipse. In addition, the multi-station switching also results in a large equipment footprint and a slow production cycle, which cannot meet the needs of high-efficiency automated production. Summary of the Invention

[0004] (a) Technical problems to be solved Based on this, the purpose of this invention is to provide an integrated processing device for automated production lines of PE pipes, in order to solve the technical problems of existing PE pipe processing using three independent workstations for cutting, chamfering, and flaring, which requires multiple clamping and transfers. Each time the workstation is changed, the clamping position and center of the pipe will be slightly offset, resulting in the pipe end being misaligned with the pipe body after processing, affecting the subsequent welding quality. At the same time, the traditional external clamping method is prone to flattening thin-walled PE pipes, causing the pipe end to be elliptical and deformed. In addition, the multi-workstation switching also results in a large equipment footprint and slow production cycle, which cannot meet the technical problems of high-efficiency automated production.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an integrated processing device for an automated production line of PE pipes, comprising a main body, a moving mechanism at the top of the main body, and an elastic expansion centering mechanism at the top of the moving mechanism. The elastic expansion centering mechanism includes a conical column, a sleeve, a fixed frame, a conical moving block, a tension spring, a limiting strip, and a conical hole. The conical column is disposed inside the fixed frame, the sleeve is disposed inside the fixed frame, the fixed frame is disposed at the top of the moving mechanism, the conical moving block is disposed inside the sleeve, the tension spring is disposed at one end inside the sleeve, the limiting strip is fixed to one side of the conical moving block, and the conical hole is opened inside the fixed frame. A rotary turret is disposed at the top of the main body, a chamfered floating tool holder mechanism is disposed at the top of the rotary turret, a flared mandrel is disposed at the top of the rotary turret, and a radial sawing machine is disposed at the top of the rotary turret.

[0006] By adopting the above technical solution, when the machine starts, the linear motor located at the top of the main body starts. The output end of the linear motor is connected to the conical column. The linear motor drives the conical column to move along the X-axis. The conical column moves into the conical hole opened inside the conical moving block. It should be noted that when the conical column moves, its conical surface gradually inserts into the conical hole formed by the four sets of conical moving blocks, and gradually expands each conical moving block. The four sets of conical moving blocks expand radially outward in sync. By using the wedge-shaped fit between the conical column and the conical hole, the axial thrust of the linear motor is converted into a uniform radial expansion force. The four sets of conical moving blocks move outward in sync, ensuring that the centering reference coincides with the axis of the PE pipe, and avoiding the elliptical deformation of the pipe caused by traditional external clamping.

[0007] Furthermore, the chamfered floating tool holder mechanism includes a protective shell, a spring, a rotating rod, a floating tool holder, and a limiting frame. The protective shell is disposed at the top of the rotary turret, the spring is disposed inside the protective shell, the rotating rod is disposed inside the protective shell, the floating tool holder is disposed at one end of the limiting frame, and the limiting frame is disposed at one end of the rotating rod. The moving mechanism includes a first motor, a moving frame, and a threaded rod. The first motor is disposed on one side of the moving frame, the moving frame is disposed at the top of the main body, and the threaded rod is disposed at the top of the moving frame and coaxially connected to the first motor.

[0008] By adopting the above technical solution, a tension spring is also provided between the sleeve and the conical moving block for elastic connection. When the conical moving block is expanded, the tension spring is stretched and stores elastic potential energy. When it needs to be reset later, the tension spring releases energy to pull the conical moving block back to its original position. A limit strip is also provided on one side of the conical moving block, and a sliding groove that cooperates with the limit strip is opened inside the sleeve, so as to ensure that the conical moving block can only move radially and will not deflect circumferentially.

[0009] Furthermore, the floating blade holder has a slot inside that cooperates with the limiting frame, one end of the floating blade holder is provided with a sharpened blade, the bottom of the main body is provided with moving wheels around the perimeter, one end of the flared mandrel is conical, the bottom of the radial saw is provided with a pad, and the rotary turret has multiple sets of limiting slots inside.

[0010] By adopting the above technical solution, when the four sets of conical moving blocks expand outward simultaneously, they will squeeze the rubber sleeve located on their outer side. The surface of the rubber sleeve is provided with multiple sets of raised ribs. These ribs tightly fit the inner wall of the PE pipe under compression, realizing full-circumferential frictional clamping. The energy storage and reset function of the tension spring allows the centering mechanism to automatically return to its position after each processing without manual intervention, improving automation efficiency. The cooperation between the limit strip and the slide groove eliminates the circumferential movement of the conical moving blocks, ensuring the repeatability of the positioning accuracy for each expansion. It provides sufficient axial clamping force without damaging the inner wall of the pipe, enabling the moving mechanism to reliably push the PE pipe.

[0011] Furthermore, the sleeve has a groove inside that mates with the conical moving block, one end of the conical column is connected to a linear motor via a coupling, and the linear motor has a top end of a moving mechanism. One end of the conical moving block has a protrusion that mates with a tension spring, the sleeve has a protrusion inside that mates with a tension spring, and one end of the protective shell has a second motor that mates with a rotating rod. The protective shell and the output end of the second motor are connected via a coupling.

[0012] By adopting the above technical solution, after the elastic expansion centering mechanism firmly supports the inner wall of the PE pipe, the operator controls the moving mechanism to start through the external control device. The first motor of the moving mechanism starts, and the output shaft of the first motor drives the threaded rod to rotate, thereby driving the slide table that meshes with its thread to move the elastic expansion centering mechanism along the X-axis, thereby driving the PE pipe to move forward synchronously. After the moving mechanism pushes the PE pipe to the predetermined length position, the radial sawing machine starts. The radial sawing machine is equipped with a high-speed rotating saw blade to cut the PE pipe at a predetermined distance. During the cutting process, because the elastic expansion centering mechanism supports the pipe wall from the inside, the pipe will not undergo radial deformation or ellipticing due to the sawing force.

[0013] (III) Beneficial Effects Compared with the prior art, the technical solution of the present invention has the following advantages: (1) By setting up an elastic expansion centering mechanism, the present invention utilizes the wedge-shaped fit between the conical column and the conical hole to convert the axial thrust of the linear motor into the synchronous radial expansion force of four sets of conical moving blocks, so that the rubber sleeve can evenly support the pipe wall from the inside of the PE pipe. This centering method from the inside out avoids the problem that traditional external clamping can easily flatten thin-walled PE pipes, and helps to reduce the occurrence of elliptical deformation of the pipe opening. At the same time, since the centering reference coincides with the pipe axis, the center position of the pipe is not easy to shift during the processing.

[0014] (2) The present invention integrates three processing steps, namely radial sawing, floating chamfering and hot flaring, into the same equipment, and realizes the rapid switching of tools through the rotary turret. In the entire processing process, the PE pipe only needs to be clamped once. The moving mechanism drives the elastic expansion centering mechanism to accurately feed the material along the X-axis, and completes the cutting, retreating avoidance, chamfering, shrinking and flaring actions in sequence. This integrated design reduces the links of workpiece transfer and secondary clamping between different workstations, which is conducive to shortening the production cycle.

[0015] (3) The present invention sets up a floating tool holder mechanism in the chamfering process. The compression deformation of the spring allows the cutting edge of the tool to elastically retract slightly according to the actual condition of the tube end face, thereby maintaining the relative stability of the contact pressure. This floating compensation design allows the tool to automatically fit and chamfer even if there is a slight unevenness or tilt at the tube end after cutting. This is conducive to forming a uniform inner and outer bevel and reduces the risk of tool breakage or tube breakage caused by rigid collision. In addition, the flaring mandrel is preheated during the chamfering process. After the chamfering is completed, the work station is directly switched to flaring, and the process connection is relatively smooth. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first perspective; Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a partial structural schematic diagram from a first perspective of the present invention; Figure 5 This is a partial structural schematic diagram from a second perspective of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A; Figure 7 This is a schematic diagram of the floating tool holder of the present invention; Figure 8 This is a schematic diagram of the internal structure of the present invention; Figure 9 This is a schematic diagram of the elastic expansion centering mechanism of the present invention.

[0017] In the diagram: 1. Main body; 2. Rotary turret; 3. Flared mandrel; 4. Chamfered floating tool holder mechanism; 401. Protective shell; 402. Spring; 403. Rotating rod; 404. Floating tool holder; 405. Limiting frame; 5. Radial sawing machine; 6. Elastic expansion centering mechanism; 601. Conical column; 602. Sleeve; 603. Fixed frame; 604. Conical moving block; 605. Tension spring; 606. Limiting strip; 607. Conical hole; 7. Linear motor; 8. Moving mechanism; 801. First motor; 802. Moving frame; 803. Threaded rod; 9. Second motor; 10. Limiting groove; 11. Moving wheel. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0020] like Figures 1 to 9As shown, the present invention provides an integrated processing device for an automated production line of PE pipes, comprising a main body 1, a moving mechanism 8 at the top of the main body 1, and an elastic expansion centering mechanism 6 at the top of the moving mechanism 8. The elastic expansion centering mechanism 6 includes a conical column 601, a sleeve 602, a fixed frame 603, a conical moving block 604, a tension spring 605, a limiting strip 606, and a conical hole 607. The conical column 601 is disposed inside the fixed frame 603, the sleeve 602 is disposed inside the fixed frame 603, the fixed frame 603 is disposed at the top of the moving mechanism 8, the conical moving block 604 is disposed inside the sleeve 602, the tension spring 605 is disposed at one end inside the sleeve 602, the limiting strip 606 is fixed to one side of the conical moving block 604, and the conical hole 607 is opened inside the fixed frame 603. A rotary turret 2 is disposed at the top of the main body 1, and a chamfered floating tool holder mechanism 4 is disposed at the top of the rotary turret 2. The flared mandrel 3 and the rotary turret 2 are equipped with a radial sawing machine 5. When the machine starts, the linear motor 7 located at the top of the main body 1 starts. The output end of the linear motor 7 is connected to the conical column 601. The linear motor 7 drives the conical column 601 to move along the X-axis. The conical column 601 moves into the conical hole 607 opened inside the conical moving block 604. It should be noted that when the conical column 601 moves, its conical surface gradually inserts into the conical hole 607 formed by the four sets of conical moving blocks 604, and gradually expands each conical moving block 604. The four sets of conical moving blocks 604 expand radially outward at the same time. By using the wedge-shaped fit between the conical column 601 and the conical hole 607, the axial thrust of the linear motor 7 is converted into a uniform radial expansion force. The four sets of conical moving blocks 604 move outward at the same time, ensuring that the centering reference coincides with the axis of the PE pipe, avoiding the elliptical deformation of the pipe caused by traditional external clamping.

[0021] For example, the chamfered floating tool holder mechanism 4 includes a protective shell 401, a spring 402, a rotating rod 403, a floating tool holder 404, and a limiting frame 405. The protective shell 401 is disposed at the top of the rotary turret 2, the spring 402 is disposed inside the protective shell 401, the rotating rod 403 is disposed inside the protective shell 401, the floating tool holder 404 is disposed at one end of the limiting frame 405, and the limiting frame 405 is disposed at one end of the rotating rod 403. The moving mechanism 8 includes a first motor 801, a moving frame 802, and a threaded rod 803. The first motor 801 is disposed on one side of the moving frame 802, and the moving frame 802 is disposed at the top of the main body 1. The grooved rod 803 is set at the top of the movable frame 802 and coaxially connected to the first motor 801. A tension spring 605 is provided between the sleeve 602 and the conical movable block 604 for elastic connection. When the conical movable block 604 is expanded, the tension spring 605 is stretched and stores elastic potential energy. When it needs to be reset later, the tension spring 605 releases energy to pull the conical movable block 604 back to its original position. A limit strip 606 is also provided on one side of the conical movable block 604, and a sliding groove that cooperates with the limit strip 606 is opened inside the sleeve 602 to ensure that the conical movable block 604 can only move radially and will not deflect circumferentially. For example, the floating blade holder 404 has a groove inside that mates with the limiting frame 405. Each end of the floating blade holder 404 is equipped with a sharpened blade. The main body 1 has moving wheels 11 around its bottom perimeter. One end of the flared mandrel 3 is conical. The radial sawing machine 5 has a pad at its bottom. The rotary turret 2 has multiple sets of limiting grooves 10 inside. When the four sets of conical moving blocks 604 expand outwards simultaneously, they compress the rubber sleeve 608 located on their outer side. The surface of the rubber sleeve 608 has multiple sets of protrusions... The raised ribs, under compression, tightly adhere to the inner wall of the PE pipe, achieving full-circumferential frictional clamping. The energy storage and reset function of the tension spring 605 allows the centering mechanism to automatically return to its original position after each processing, without manual intervention, thus improving automation efficiency. The cooperation between the limit bar 606 and the slide groove eliminates the circumferential movement of the conical moving block 604, ensuring the repeatability of the positioning accuracy for each expansion. It provides sufficient axial clamping force without damaging the inner wall of the pipe, enabling the moving mechanism 8 to reliably push the PE pipe. For example, the sleeve 602 has a groove inside that mates with the conical moving block 604. One end of the conical column 601 is connected to a linear motor 7 via a coupling, and the linear motor 7 is equipped with the top of the moving mechanism 8. One end of the conical moving block 604 is equipped with a protrusion that mates with the tension spring 605. The sleeve 602 has a protrusion inside that mates with the tension spring 605. One end of the protective shell 401 is equipped with a second motor 9 that mates with the rotating rod 403, and the protective shell 401 and the output end of the second motor 9 are connected via a coupling. The moving mechanism 8 pushes the PE pipe to a predetermined length position and then radially saws... When the cutting machine 5 is started, the radial sawing machine 5 is equipped with a high-speed rotating saw blade to cut the PE pipe at a predetermined distance. During the cutting process, the elastic expansion centering mechanism 6 supports the pipe wall from the inside, so the pipe will not be radially deformed or elliptical due to the sawing force. After the cutting is completed, the operator controls the first motor 801 of the moving mechanism 8 to reverse, so that the elastic expansion centering mechanism 6 drives the PE pipe to move backward a certain distance, and removes the pipe end from the sawing area. Then the rotary turret 2 is started. The rotary turret 2 rotates and indexes around the Z-axis, and the chamfering floating tool holder mechanism 4 is switched to be located in front of the elastic expansion centering mechanism 6.

[0022] The working principle and usage process of this invention: The operator manually puts the PE pipe to be processed into the elastic expansion centering mechanism 6. It is necessary to ensure that the manual pressing is done to ensure that the PE pipe is placed in place. At this time, the PE pipe is sleeved on the outside of the rubber sleeve 608 of the elastic expansion centering mechanism 6. The surface of the rubber sleeve 608 is provided with multiple sets of raised ribs to increase the friction between the PE pipe and the elastic expansion centering mechanism 6. After the operator confirms that the pipe is placed in place, the machine is started. When the machine starts, the linear motor 7 located at the top of the main body 1 starts. The output end of the linear motor 7 is connected to the conical column 601. The linear motor 7 drives the conical column 601 to move along the X-axis. The conical column 601 moves into the conical hole 607 opened inside the conical moving block 604. It should be noted that when the conical column 601 moves, its conical surface gradually inserts into the conical hole 607 formed by the four sets of conical moving blocks 604, and gradually expands each conical moving block 604. The four sets of conical moving blocks 604 expand radially outward simultaneously. By using the wedge-shaped fit between the conical column 601 and the conical hole 607, the axial thrust of the linear motor 7 is converted into a uniform radial expansion force. The synchronous outward movement of the four sets of conical moving blocks 604 ensures that the centering reference coincides with the axis of the PE pipe, avoiding the elliptical deformation of the pipe caused by traditional external clamping. It should be noted that a tension spring 605 is also provided between the sleeve 602 and the conical moving block 604 for elastic connection. When the conical moving block 604 is expanded, the tension spring 605 is stretched and stores elastic potential energy. When it needs to be reset later, the tension spring 605 releases energy to pull the conical moving block 604 back to its original position. A limit strip 606 is also provided on one side of the conical moving block 604, and a sliding groove that cooperates with the limit strip 606 is provided inside the sleeve 602 to ensure that the conical moving block 604 can only move radially and will not deflect circumferentially. When the four sets of conical moving blocks 604 expand outwards simultaneously, they will squeeze the rubber sleeve 608 located on their outer side. The surface of the rubber sleeve 608 is provided with multiple sets of raised ribs. Under compression, these ribs tightly fit the inner wall of the PE pipe, achieving full-circumferential frictional clamping. The energy storage and reset function of the tension spring 605 allows the centering mechanism to automatically return to its position after each processing, without manual intervention, thus improving automation efficiency. The cooperation between the limit strip 606 and the slide groove eliminates the circumferential movement of the conical moving blocks 604, ensuring the repeatability of the positioning accuracy for each expansion. It provides sufficient axial clamping force without damaging the inner wall of the pipe, enabling the moving mechanism 8 to reliably push the PE pipe. After the elastic expansion centering mechanism 6 firmly supports the inner wall of the PE pipe, the staff controls the moving mechanism 8 to start through the external control device. The first motor 801 of the moving mechanism 8 starts, and the output shaft of the first motor 801 drives the threaded rod 803 to rotate, thereby driving the slide table that meshes with its thread to move the elastic expansion centering mechanism 6 along the X-axis, thereby driving the PE pipe to move forward synchronously. After the moving mechanism 8 pushes the PE pipe to the predetermined length position, the radial sawing machine 5 starts. The radial sawing machine 5 is equipped with a high-speed rotating saw blade to cut the PE pipe at a predetermined distance. During the cutting process, the pipe will not be radially deformed or elliptical due to the sawing force because the elastic expansion centering mechanism 6 supports the pipe wall from the inside. After the cutting is completed, the operator controls the first motor 801 of the moving mechanism 8 to reverse, so that the elastic expansion centering mechanism 6 drives the PE pipe to move backward a certain distance, and removes the pipe end from the sawing area. Then, the rotary turret 2 is started. The rotary turret 2 rotates and indexes around the Z-axis, and the chamfering floating tool holder mechanism 4 is switched to be located in front of the elastic expansion centering mechanism 6 (that is, directly opposite the outlet end of the PE pipe). This achieves the coordination between the backward avoidance and the rotary turret 2, realizing the integration of multiple processes and avoiding the transfer error of the workpiece between different equipment; The staff slowly controlled the first motor 801 of the moving mechanism 8 to rotate forward, driving the elastic expansion centering mechanism 6 to move the PE pipe forward, so that the cutting end face of the PE pipe gradually approaches the cutting edge of the chamfered floating tool holder mechanism 4. At the same time, the staff simultaneously started the second motor 9. When the second motor 9 rotates at high speed, it will drive the rotating rod 403 connected to it on the same axis to rotate. It should be noted that when the rotating rod 403 rotates, it will drive the limiting frame 405 connected to one end to rotate. The rotation of the limiting frame 405 will drive the floating tool holder 404 to rotate. The chamfered floating tool holder mechanism 4 is also equipped with a spring 402. When the end face of the PE pipe contacts the cutting edge of the tool, the spring 402 is compressed, so that the floating tool holder 404 can generate a small amount of elastic retraction in the X-axis direction. The floating compensation function of spring 402 keeps the contact pressure between the cutting edge of the tool and the end face of the PE pipe as stable as possible. Even if there is a slight unevenness on the end face of the PE pipe or tilting during cutting, the tool can automatically fit and produce a uniform inner and outer bevel, avoiding the chipping of the tool or the breakage of the pipe end caused by rigid collision. It should be noted that the forward and backward movement of the limit frame 405 at this time will not cause the rotation torque of the rotating rod 403 to fail. This is because the limit frame 405 and the rotating rod 403 are connected by a spline or sliding key, which allows axial relative sliding while transmitting torque. After the chamfering is completed, the operator controls the first motor 801 of the moving mechanism 8 to reverse and retract the PE pipe to the initial position. Before this, the operator has preheated the flaring mandrel 3 through the control device. The electric heating element inside the flaring mandrel 3 heats the head of the mandrel to the thermoforming temperature of the PE material. When the chamfering is completed, the flaring mandrel 3 reaches the set temperature. Then the rotary turret 2 rotates again and switches the flaring mandrel 3 to the position facing the center of the PE pipe end face. At this time, the axis of the flaring mandrel 3 coincides with the axis of the elastic expansion centering mechanism 6. The staff controls the first motor 801 of the moving mechanism 8 to rotate forward, driving the elastic expansion centering mechanism 6 to move the PE pipe forward, so that the chamfered end of the PE pipe is gradually fitted into the heated flared mandrel 3. The front end of the flared mandrel 3 is tapered, and its maximum diameter is greater than the inner diameter of the PE pipe. As the PE pipe continues to move forward, the tapered surface of the flared mandrel 3 gradually expands the end of the PE pipe to form the required flared mouth shape. Throughout the flaring process, the conical moving block 604 of the elastic expansion centering mechanism 6 remains in an expanded state, and the rubber sleeve 608 internally supports the PE pipe wall. This "internal support + external flaring" structure ensures that the flaring force is evenly distributed to the entire circumference of the pipe wall, preventing local tearing or out-of-roundness. After processing is completed, the operator controls the linear motor 7 to move in the reverse direction, the conical column 601 exits from the conical hole 607, the tension spring 605 contracts to pull the four sets of conical moving blocks 604 back to their original positions, the rubber sleeve 608 returns to its original state, the processed PE pipe is released, and the operator or the unloading mechanism takes the PE pipe out from the elastic expansion centering mechanism 6, completing one processing cycle.

[0023] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. An integrated processing device for PE pipe automatic production line, comprising a main body (1), characterized in that, The main body (1) is provided with a moving mechanism (8) at its top end, and the moving mechanism (8) is provided with an elastic expansion centering mechanism (6) at its top end. The elastic expansion centering mechanism (6) includes a conical column (601), a sleeve (602), a fixed frame (603), a conical moving block (604), a tension spring (605), a limiting strip (606), and a conical hole (607). The conical column (601) is disposed inside the fixed frame (603), the sleeve (602) is disposed inside the fixed frame (603), and the fixed frame (603) is disposed on the moving mechanism (8). At the top, the conical moving block (604) is set inside the sleeve (602), the tension spring (605) is set at one end inside the sleeve (602), the limiting strip (606) is fixed on one side of the conical moving block (604), the conical hole (607) is opened inside the fixed frame (603), the top of the main body (1) is provided with a rotary turret (2), the top of the rotary turret (2) is provided with a chamfered floating tool holder mechanism (4), the top of the rotary turret (2) is provided with a flared mandrel (3), and the top of the rotary turret (2) is provided with a radial sawing machine (5).

2. The integrated processing device for an automated production line of PE pipes according to claim 1, characterized in that: The chamfered floating tool holder mechanism (4) includes a protective shell (401), a spring (402), a rotating rod (403), a floating tool holder (404), and a limiting frame (405). The protective shell (401) is located at the top of the rotary turret (2), the spring (402) is located inside the protective shell (401), the rotating rod (403) is located inside the protective shell (401), the floating tool holder (404) is located at one end of the limiting frame (405), and the limiting frame (405) is located at one end of the rotating rod (403).

3. The integrated processing device for an automated production line of PE pipes according to claim 1, characterized in that: The moving mechanism (8) includes a first motor (801), a moving frame (802), and a threaded rod (803). The first motor (801) is located on one side of the moving frame (802), the moving frame (802) is located at the top of the main body (1), and the threaded rod (803) is located at the top of the moving frame (802) and is coaxially connected to the first motor (801).

4. The integrated processing device for an automated production line of PE pipes according to claim 2, characterized in that: The floating tool holder (404) has a slot inside that cooperates with the limiting frame (405), and one end of the floating tool holder (404) is provided with a sharpened blade.

5. The integrated processing device for an automated production line of PE pipes according to claim 1, characterized in that: The main body (1) is equipped with movable wheels (11) around the bottom, and one end of the flared mandrel (3) is conical.

6. The integrated processing device for an automated production line of PE pipes according to claim 1, characterized in that: The radial saw (5) is provided with a pad frame at the bottom, and the rotary turret (2) has multiple sets of limiting grooves (10) inside.

7. The integrated processing device for an automated production line of PE pipes according to claim 1, characterized in that: The sleeve (602) has a sliding groove inside that cooperates with the conical moving block (604). One end of the conical column (601) is connected to a linear motor (7) via a coupling, and the linear motor (7) is provided with a top of a moving mechanism (8).

8. The integrated processing device for an automated production line of PE pipes according to claim 1, characterized in that: One end of the conical moving block (604) is provided with a protrusion that cooperates with the tension spring (605), and the sleeve (602) is provided with a protrusion that cooperates with the tension spring (605) inside.

9. The integrated processing device for an automated production line of PE pipes according to claim 2, characterized in that: One end of the protective shell (401) is provided with a second motor (9) that cooperates with the rotating rod (403), and the protective shell (401) and the output end of the second motor (9) are connected by a coupling.

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