A slitting device for PE pipe production

By designing and coordinating components such as fixed frames, rotating components, and support frames, multiple cutting and automatic feeding of PE pipes are achieved, solving the problem of low efficiency in existing technologies, improving production efficiency, and ensuring operational safety.

CN122143150APending Publication Date: 2026-06-05HUBEI JINHE ENERGY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUBEI JINHE ENERGY IND CO LTD
Filing Date
2026-03-02
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing PE pipe cutting devices can only cut two sections at a time, which is inefficient and time-consuming and labor-intensive, and poses safety hazards.

Method used

A slitting device comprising a fixed frame, a rotating assembly, a cutting blade, a support frame, and a reciprocating assembly is designed. Through the cooperation of an electric push rod, a motor, and a cylinder, multiple cuts and automatic unloading are achieved. Combined with an adjustable cutting blade distance and wedge block guidance, efficient and safe pipe cutting is realized.

Benefits of technology

It enables efficient cutting of multi-section PE pipes, reduces the labor intensity of operators, improves production efficiency, and ensures operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of pipe production and discloses a slitting device for PE pipe production, which comprises a processing table, a mounting frame fixedly connected to the top of the processing table and an electric push rod fixedly connected to the inside of the mounting frame, the output end of the electric push rod is fixedly connected with a fixing frame, a rotating assembly is installed on the outside of the fixing frame, a rotating rod is clamped in the inside of the rotating assembly, three cutting knives in linear array distribution are slidably connected to the outside of the rotating rod, the rotating assembly drives the rotating rod to rotate, so that the rotation of the cutting knives is realized, and the pipe is cut, a supporting frame is installed on the top of the processing table, and the top of the supporting frame is in an inclined shape. The application has the advantages and effects that multiple PE pipes can be simultaneously slitted, the slitting efficiency is relatively high, the blanking is facilitated, the labor intensity of the operators is reduced, and the physical health of the operators is protected.
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Description

Technical Field

[0001] This invention relates to the field of pipe manufacturing technology, and in particular to a slitting device for PE pipe manufacturing. Background Technology

[0002] In many fields such as construction, municipal engineering, and agricultural irrigation, PE (polyethylene) pipes have been widely used due to their significant advantages such as strong corrosion resistance, good flexibility, light weight, and low cost. With the continuous growth of market demand for PE pipes, higher requirements have been placed on their production efficiency and processing quality.

[0003] Existing PE pipe slitting equipment typically only slits PE pipes into two segments at a time, resulting in low slitting efficiency and consequently low production efficiency. Furthermore, PE pipe slitting usually requires first fixing the pipe inside a securing device before slitting. After slitting, the cut segments must be manually removed from the securing device, wasting considerable time and impacting slitting efficiency. It also increases labor intensity. Improper manual removal can lead to dropped slitting segments that could injure or harm the operator, impacting their health. Summary of the Invention

[0004] The purpose of this invention is to provide a slitting device for PE pipe production, which can simultaneously slitting multiple sections of PE pipe, with high slitting efficiency, convenient material feeding, reduced labor intensity for operators, and protection of operators' health.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a slitting device for PE pipe production, comprising a processing table, a mounting frame fixedly connected to the top of the processing table, and an electric push rod fixedly connected to the interior of the mounting frame. The output end of the electric push rod is fixedly connected to a fixed frame. A rotating assembly is mounted on the outside of the fixed frame. A rotating rod is engaged inside the rotating assembly. Three cutting blades arranged in a linear array are slidably connected to the outside of the rotating rod. The rotating assembly drives the rotating rod to rotate, thereby rotating the cutting blades to cut the pipe. A support frame is mounted on the top of the processing table. The top of the support frame is inclined. A reciprocating assembly is mounted inside the support frame. The reciprocating motion of the reciprocating assembly realizes the feeding and unloading of the pipe.

[0006] A further configuration of the present invention is as follows: the rotating assembly includes a motor fixedly connected to the outside of the fixed frame, the output shaft of the motor is fixedly connected to a first rotating sleeve rotatably connected to the inside of the fixed frame, and the first rotating sleeve engages with the outside of the rotating rod.

[0007] By adopting the above technical solution, the design of the first rotating sleeve and the rotating rod engaging makes the assembly process relatively simple. When installing and debugging the equipment, the rotating rod and the first rotating sleeve can be easily engaged or disengaged according to actual needs, which facilitates the assembly, disassembly and maintenance of the rotating components.

[0008] A further configuration of the present invention is as follows: the reciprocating assembly includes a sliding column that is internally slidably connected to the processing table and the support frame, a spring is sleeved on the outer side of the sliding column, and a sliding plate that is internally slidably connected to the top of the sliding column is fixedly connected to the support frame.

[0009] By adopting the above technical solution, it is easy to press the pipe into the support frame and keep it fixed. At this time, the sliding plate drives the sliding column to move downward, and the spring is stretched.

[0010] A further configuration of the present invention is as follows: the top of the spring is fixedly connected to the bottom of the processing table, a limiting piece is fixedly connected to the bottom of the sliding column, and the bottom of the spring is fixedly connected to the outer side of the limiting piece.

[0011] By adopting the above technical solution, when the external force disappears, the spring will use its own elastic restoring force to push the limiting plate and the sliding column connected to it to move upward, so that the sliding plate returns to its initial position.

[0012] A further feature of the present invention is that: a scale is provided on the outer side of the rotating rod, and multiple screw holes are provided inside the rotating rod; a connecting piece is fixedly connected to the outer side of the cutting tool and slidably connected to the outer side of the rotating rod; a sliding hole is provided inside the connecting piece; and the cutting tool and the rotating rod are fixed by passing a bolt through the sliding hole and rotating it into the screw hole.

[0013] By adopting the above technical solution, it is easy to adjust the distance between the two cutting blades, so that the distance for cutting the pipe can be adjusted according to production needs, and the adjustment of the pipe cutting distance can be more precise.

[0014] A further feature of the present invention is that the support frame has a cutting groove inside, so that the cutting tool will not come into contact with the support frame when cutting the pipe, and a receiving box is slidably connected to the bottom of the processing table.

[0015] By adopting the above technical solution, the groove design prevents the cutting tool from cutting the top of the support frame when cutting the pipe downwards. By removing the receiving box, the cut pipes that have slid into the receiving box can be centrally processed.

[0016] A further provision of the present invention is that a wedge-shaped block is provided on the outside of the receiving box, and a wedge-shaped groove adapted to the wedge-shaped block is provided inside the processing table, and the wedge-shaped block is slidably connected to the inside of the wedge-shaped groove.

[0017] By adopting the above technical solution, the wedge block slides within the wedge groove during the connection or disassembly of the receiving box and the processing table, providing excellent guidance. Operators can more easily and accurately install the receiving box, reducing adjustment time and difficulty during installation.

[0018] A further feature of the present invention is that a fixing plate is bolted to the inside of the fixing frame, and a second rotating sleeve is rotatably connected to the inside of the fixing plate and sleeved on the outside of the rotating rod.

[0019] By adopting the above technical solution, it is easy to drive the second rotating sleeve to rotate, thereby driving the cutting tool to rotate at high speed and realize the cutting of the pipe.

[0020] A further feature of the present invention is that a cylinder is fixedly connected to the top of the processing table, and a lower pressure plate is fixedly connected to the output end of the cylinder.

[0021] By adopting the above technical solution, it is easy to press the pipe into the support frame and keep it fixed, preventing the pipe from shifting position during cutting.

[0022] A further feature of the present invention is that a control panel is tightly and embeddedly connected to the interior of the processing table.

[0023] By adopting the above technical solution, the control panel facilitates the control of fixing, cutting, and unfixing of pipes, and the embedded fixing method not only makes the installation of the control panel more stable.

[0024] The beneficial effects of this invention are:

[0025] This invention, through the coordination of components such as a fixed frame, a first rotating sleeve, a rotating rod, and a cutting tool, allows the distance between the two cutting tools to be easily adjusted according to the required pipe cutting length, thereby enabling the cutting of pipes of different lengths. It has a wide range of applications and can meet various pipe cutting needs.

[0026] This invention, through the cooperation of components such as a fixed frame, a fixed plate, a first rotating sleeve, a rotating rod, and a cutting tool, can simultaneously perform multiple cuts on the outer side of the pipe, resulting in high cutting efficiency, saving time and effort, and greatly improving production efficiency.

[0027] This invention automates the cutting process by using a combination of components such as a support frame, sliding column, spring, and sliding plate to allow the pipe to slide downwards along the top of the support frame after being cut, thereby improving the cutting efficiency and safety of the pipe. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the present invention.

[0030] Figure 2 This is a cross-sectional view in an embodiment of the present invention;

[0031] Figure 3 This is a diagram showing the connection between the rotating rod and the second rotating sleeve in an embodiment of the present invention;

[0032] Figure 4 This is a side view of an embodiment of the present invention.

[0033] In the diagram, 1. Processing table; 2. Mounting frame; 3. Electric push rod; 4. Fixed frame; 5. Rotating assembly; 6. Rotating rod; 7. Cutting tool; 8. Support frame; 9. Reciprocating assembly; 10. Motor; 11. First rotating sleeve; 12. Sliding column; 13. Spring; 14. Sliding plate; 15. Scale; 16. Groove; 17. Receiving box; 18. Fixed plate; 19. Second rotating sleeve; 20. Cylinder; 21. Lower pressure plate; 22. Control panel. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] Specifically, refer to Figure 1-4 A slitting device for PE pipe production includes a processing table 1, a mounting frame 2 fixedly connected to the top of the processing table 1, and an electric push rod 3 fixedly connected to the inside of the mounting frame 2. The output end of the electric push rod 3 is fixedly connected to a fixed frame 4. A rotating assembly 5 is installed on the outside of the fixed frame 4. A rotating rod 6 is engaged inside the rotating assembly 5. Three cutting blades 7 arranged in a linear array are slidably connected to the outside of the rotating rod 6. The rotating assembly 5 drives the rotating rod 6 to rotate, thereby rotating the cutting blades 7 to cut the pipe. A support frame 8 is installed on the top of the processing table 1. The top of the support frame 8 is inclined. A reciprocating assembly 9 is installed inside the support frame 8. The reciprocating motion of the reciprocating assembly 9 realizes the feeding and unloading of the pipe.

[0036] First, the pipe is placed inside the support frame 8. Then, the cylinder 20 is activated, causing the lower pressure plate 21 to move downwards, thus pressing the pipe into the support frame 8 and fixing it in place to prevent displacement during cutting. The downward movement of the pipe causes the sliding plate to move downwards, which in turn moves the sliding column 12 downwards, stretching the spring 13. This stretches the electric push rod 3 outwards, causing the fixing frame 4 to move downwards, thereby causing the rotating assembly 5 to move downwards. Subsequently, the rotating rod 6 drives the cutting tool 7 downwards, and simultaneously, the motor 10 is activated, driving the... When the first rotating sleeve 11 rotates, it drives the rotating rod 6 to rotate, thereby causing the cutting tool 7 to rotate and cut the outside of the pipe. After the cutting is completed, the cylinder 20 is activated again, and the cylinder 20 is stretched outward, causing the lower pressure plate 21 to move upward. At this time, the pipe is not fixed, and the spring on the outside of the sliding column 12 returns to its normal state, thereby driving the sliding column 12 to move upward, thereby causing the sliding plate 14 to move upward, so that the cut pipe is lifted up. Subsequently, due to the tilting effect of the support frame 8, the pipe slides from the top of the support frame 8 into the inside of the receiving box 17.

[0037] Specifically, refer to Figure 3 The rotating assembly 5 includes a motor 10 fixedly connected to the outside of the fixed frame 4. The output shaft of the motor 10 is fixedly connected to a first rotating sleeve 11 which is rotatably connected to the inside of the fixed frame 4. The first rotating sleeve 11 engages with the outside of the rotating rod 6.

[0038] In a specific implementation, the motor 10 is started, which drives the first rotating sleeve 11 to rotate, thereby causing the rotating rod 6 to rotate, which in turn drives the cutting tool 7 to rotate at high speed, thus achieving the cutting of the pipe. The design of the first rotating sleeve 11 engaging with the rotating rod 6 makes the assembly process relatively simple. During the installation and debugging of the equipment, the rotating rod 6 can be easily engaged or disengaged from the first rotating sleeve 11 according to actual needs, which facilitates the assembly, disassembly and maintenance of the rotating component 5. At the same time, it is convenient to install the required number of cutting tools 7 on the outside of the rotating rod 6.

[0039] Specifically, refer to Figure 1 and Figure 2 The reciprocating assembly 9 includes a sliding column 12 that is internally slidably connected to the processing table 1 and the support frame 8. A spring 13 is sleeved on the outside of the sliding column 12, and a sliding plate 14 that is internally slidably connected to the top of the sliding column 12 is fixedly connected to the top of the support frame 8.

[0040] In a specific implementation, when the pipe is placed on top of the sliding plate 14, the cylinder 20 is activated, and the cylinder 20 drives the lower pressure plate 21 to move downward, thereby pressing the pipe into the support frame 8 and keeping it fixed. At this time, the sliding plate 14 drives the sliding column 12 to move downward, and the spring 13 is stretched.

[0041] Specifically, refer to Figure 2The top of the spring 13 is fixedly connected to the bottom of the processing table 1, the bottom of the sliding column 12 is fixedly connected to a limiting piece, and the bottom of the spring 13 is fixedly connected to the outer side of the limiting piece.

[0042] In a specific implementation, when the sliding column 12 moves downward, the spring 13 is in a stretched state. When the pipe is unfixed, the spring 13 returns to its original state, causing the sliding column 12 to slide upward, thereby causing the sliding plate 14 to move upward, lifting the pipe and causing it to slide into the receiving box 17.

[0043] Specifically, refer to Figure 1 A scale 15 is provided on the outside of the rotating rod 6. Multiple screw holes are provided inside the rotating rod 6. A connecting piece is fixedly connected to the outside of the cutting tool 7 and slidably connected to the outside of the rotating rod 6. A sliding hole is provided inside the connecting piece. By passing the bolt through the sliding hole and rotating it into the screw hole, the cutting tool 7 and the rotating rod 6 are fixed.

[0044] In a specific implementation, by unscrewing the bolt from the screw hole, the connecting piece on the outside of the cutting tool 7 and the rotating rod 6 are kept in a sliding state. At this time, by sliding the cutting tool 7 and combining it with the scale 15, the distance between the two cutting tools 7 is adjusted, so that the distance of cutting the pipe can be adjusted according to production needs, and the distance of pipe cutting can be adjusted more accurately.

[0045] Specifically, refer to Figure 1 The support frame 8 has a cutting groove 16 inside, so that the cutting tool 7 will not come into contact with the support frame 8 when cutting the pipe. The bottom of the processing table 1 is slidably connected to the receiving box 17.

[0046] In a specific implementation, the design of the groove 16 prevents the cutting tool 7 from cutting the top of the support frame 8 when cutting the pipe downwards. By removing the receiving box 17, the cut pipe that has slid into the receiving box 17 can be centrally processed.

[0047] Specifically, refer to Figure 1 The receiving box 17 has a wedge block on its outer side, and the processing table 1 has a wedge groove inside that matches the wedge block. The wedge block and the wedge groove are slidably connected inside each other.

[0048] In a specific implementation, by pulling the receiving box 17, the wedge block slides within the wedge groove, thereby removing the receiving box 17 and centrally processing the cut pipes inside. During the connection or disassembly of the receiving box to the processing table, the sliding of the wedge block within the wedge groove provides excellent guidance. Operators can more easily and accurately install the receiving box, reducing adjustment time and difficulty during installation.

[0049] Specifically, refer to Figure 3The fixing plate 18 is bolted inside the fixing frame 4, and the second rotating sleeve 19 is rotatably connected inside the fixing plate 18 and is sleeved on the outside of the rotating rod 6.

[0050] In a specific implementation, the motor 10 is first started, which drives the first rotating sleeve 11 to rotate, thereby causing the rotating rod 6 to rotate. The rotating rod 6 drives the second rotating sleeve 19 to rotate, thereby driving the cutting tool 7 to rotate at high speed, thus achieving the cutting of the pipe.

[0051] Specifically, refer to Figure 4 A cylinder 20 is fixedly connected to the top of the processing table 1, and a lower pressure plate 21 is fixedly connected to the output end of the cylinder 20.

[0052] In a specific implementation, the cylinder 20 is activated, which drives the lower pressure plate 21 to move downward, thereby pressing the pipe into the support frame 8 and keeping it fixed, preventing the pipe from shifting position during cutting.

[0053] Specifically, refer to Figure 4 The control panel 22 is tightly and embedded inside the processing table 1.

[0054] In a specific implementation, the control panel 22 facilitates the control of fixing, cutting, and unfixing of the pipes. The embedded fixing method not only makes the installation of the control panel 22 more stable and can effectively resist the vibration and impact generated during the processing, ensuring the normal operation of the control panel 22, but also saves space and makes the overall layout of the processing table more reasonable.

[0055] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, which will not be described in detail here.

[0056] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slitting device for PE pipe production, comprising a processing table (1), a mounting frame (2) fixedly connected to the top of the processing table (1), and an electric push rod (3) fixedly connected to the interior of the mounting frame (2), wherein the output end of the electric push rod (3) is fixedly connected to a fixing frame (4), characterized in that: A rotating assembly (5) is installed on the outside of the fixed frame (4). A rotating rod (6) is engaged inside the rotating assembly (5). Three cutting tools (7) are slidably connected to the outside of the rotating rod (6) and arranged in a linear array. The rotating assembly (5) drives the rotating rod (6) to rotate, thereby rotating the cutting tools (7) to cut the pipe. A support frame (8) is installed on the top of the processing table (1). The top of the support frame (8) is inclined. A reciprocating assembly (9) is installed inside the support frame (8). The reciprocating motion of the reciprocating assembly (9) realizes the feeding and unloading of the pipe.

2. The slitting device for PE pipe production according to claim 1, characterized in that: The rotating assembly (5) includes a motor (10) fixedly connected to the outside of the fixed frame (4), and the output shaft of the motor (10) is fixedly connected to a first rotating sleeve (11) which is rotatably connected to the inside of the fixed frame (4). The first rotating sleeve (11) engages with the outside of the rotating rod (6).

3. The slitting device for PE pipe production according to claim 2, characterized in that: The reciprocating assembly (9) includes a sliding column (12) that is internally slidably connected to the processing table (1) and the support frame (8). A spring (13) is sleeved on the outside of the sliding column (12). A sliding plate (14) that is internally slidably connected to the top of the sliding column (12) is fixedly connected to the top of the support frame (8).

4. A slitting device for PE pipe production according to claim 3, characterized in that: The top of the spring (13) is fixedly connected to the bottom of the processing table (1), the bottom of the sliding column (12) is fixedly connected to a limiting piece, and the bottom of the spring (13) is fixedly connected to the outer side of the limiting piece.

5. A slitting device for PE pipe production according to claim 4, characterized in that: A scale (15) is provided on the outside of the rotating rod (6). Multiple screw holes are provided inside the rotating rod (6). A connecting piece is fixedly connected to the outside of the cutting tool (7) and slidably connected to the outside of the rotating rod (6). A sliding hole is provided inside the connecting piece. By passing the bolt through the sliding hole and rotating it into the screw hole, the cutting tool (7) and the rotating rod (6) are fixed.

6. A slitting device for PE pipe production according to claim 5, characterized in that: The support frame (8) has a cutting groove (16) inside, so that the cutting tool (7) will not come into contact with the support frame (8) when cutting the pipe. The bottom of the processing table (1) is slidably connected to a receiving box (17).

7. A slitting device for PE pipe production according to claim 6, characterized in that: The receiving box (17) is provided with a wedge block on the outside, and the processing table (1) is provided with a wedge groove that matches the wedge block inside, and the wedge block is slidably connected to the inside of the wedge groove.

8. A slitting device for PE pipe production according to claim 1, characterized in that: The fixing frame (4) is bolted to a fixing plate (18), and the fixing plate (18) is rotatably connected to a second rotating sleeve (19) that is sleeved on the outside of the rotating rod (6).

9. A slitting device for PE pipe production according to claim 8, characterized in that: A cylinder (20) is fixedly connected to the top of the processing table (1), and a lower pressure plate (21) is fixedly connected to the output end of the cylinder (20).

10. A slitting device for PE pipe production according to claim 9, characterized in that: The control panel (22) is tightly and embedded inside the processing table (1).