Corrugated pipe slitting mill

By using an electric lifting rod and a drive motor to drive the upper and lower cutting blades in a collision cutting technology, the problem of outer wall deformation and wear caused by excessive or insufficient blade pressure in corrugated pipe rolling cutters is solved, thus achieving high-quality corrugated pipe cutting.

CN223656119UActive Publication Date: 2025-12-12JINDU BELLOWS LTD WUXI
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Patent Information

Application Number
CN202520216989.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-12-12
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

In the existing corrugated pipe rolling cutter, excessive blade pressure during the cutting process can cause deformation of the outer wall of the corrugated pipe, while insufficient pressure can lead to blade wear or increased cutting resistance, thus affecting the processing quality.

Method used

An electric lifting rod and a drive motor are used to drive the upper and lower cutting blades to collide and cut, avoiding direct contact between the blades and the outer wall of the corrugated pipe. Cutting is achieved by the collision of the inner and outer peripheral walls, avoiding pitting on the vertical edges of the corrugated pipe.

Benefits of technology

It improves the cutting quality of corrugated pipes, avoids deformation of the outer wall of the corrugated pipe and wear of the cutting tools, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a corrugated pipe slitting mill, which belongs to the technical field of corrugated pipe processing, and comprises a processing table, two mounting frames, a corrugated pipe positioning clamp, an arc-shaped limiting seat, a handheld circular seat, a rotating friction sleeve and a limiting ring, the adjustable cutting structure comprises an electric lifting rod fixedly mounted on the outer wall of the top of the mounting frame, a lifting frame is fixedly mounted on a telescopic shaft of the electric lifting rod, and a first driving motor is fixedly mounted on the inner wall of the bottom of the lifting frame. According to the corrugated pipe slitting mill, under the action of the electric lifting rod, the lifting frame and the first driving motor, the upper cutting knife is driven to move downwards, the inner peripheral wall and the outer peripheral wall of the cutting position of a corrugated pipe make contact with the lower cutting knife and the upper cutting knife correspondingly, the two-face cutting effect is achieved through collision of the upper cutting knife and the lower cutting knife, the vertical edge of the corrugated pipe is ground off, and the edge cutting effect is achieved; therefore, the vertical edge pocking marks of the corrugated pipe are avoided, and the yield of the corrugated pipe is improved.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe processing technology, specifically a corrugated pipe rolling cutter. Background Technology

[0002] A corrugated pipe rolling cutter is a specialized machine for processing corrugated pipes. It uses precise rolling cutting technology to continuously cut and shape corrugated pipe materials. The equipment mainly consists of a rolling cutting system, a feeding system, and a control system. During operation, the corrugated pipe material, driven by the feeding system, is squeezed and sheared by one or more pairs of rolling cutter rollers, thus achieving fixed-length cutting and shape shaping of the corrugated pipe. Corrugated pipe rolling cutters are characterized by high efficiency, precision, and stability, and are widely used in air conditioning, refrigeration, automotive, and home appliance industries.

[0003] Currently, when processing and cutting corrugated pipes, the excess part of the corrugated pipe is cut off by a cutting tool. Generally, the cutting tool moves downward to the cutting point of the corrugated pipe. However, if the cutting tool pressure is too high, it will squeeze the outer wall of the corrugated pipe, causing the outer wall of the corrugated pipe to deform. When the cutting tool pressure is too low, it will cause excessive wear of the cutting tool or increase the cutting resistance, resulting in pitting at the cutting point of the corrugated pipe, which affects the processing quality. Therefore, a corrugated pipe rolling cutter was proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a corrugated pipe rolling cutter, which has advantages such as improving the quality of corrugated pipe processing. It solves the problems that excessive tool pressure will squeeze the outer wall of the corrugated pipe, causing deformation of the outer wall, and that when the tool pressure is too low, excessive tool wear or increased cutting resistance will occur, resulting in pitting at the cut of the corrugated pipe, thus affecting the processing quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrugated pipe rolling cutter, comprising a processing table, two mounting frames, a corrugated pipe positioning clamp, an arc-shaped limiting seat, a handheld circular seat, a rotating friction sleeve, and a limiting ring, wherein the top of the processing table is provided with an adjustable cutting structure;

[0006] The adjustable cutting structure includes an electric lifting rod fixedly installed on the top outer wall of the mounting frame. A lifting frame is fixedly installed on the telescopic shaft of the electric lifting rod. A first drive motor is fixedly installed on the bottom inner wall of the lifting frame. A threaded rod is fixedly installed on the output shaft of the first drive motor. A mounting ring is fixedly installed on the outer peripheral wall of the output shaft of the first drive motor. Two mounting clamps are slidably connected to the outer peripheral wall of the output shaft of the first drive motor. An upper cutting blade is movably installed between the two mounting clamps. A nut is threadedly connected to the outer peripheral wall of the threaded rod. Two mounting plates are fixedly installed on the top outer wall of the processing table. A second drive motor is fixedly installed on the right outer wall of the mounting plate. A drive shaft is fixedly installed on the output shaft of the second drive motor. A lower cutting blade is fixedly installed on the outer peripheral wall of the drive shaft. A corrugated pipe positioning plate is fixed inside the mounting frame.

[0007] Furthermore, the telescopic shaft of the electric lifting rod passes through the interior of the mounting frame and extends inward. The bottom of the lifting frame is provided with a mounting groove, and the first drive motor is installed inside the mounting groove and is of a suitable size.

[0008] Furthermore, the upper cutting blade is slidably connected to the outer peripheral wall of the output shaft of the first drive motor, the mounting clamp is circular, and the diameter of the upper cutting blade is larger than the diameter of the mounting clamp.

[0009] Furthermore, the outer walls of the two mounting plates on opposite sides are respectively attached to the outer walls of the mounting ring and the nut on opposite sides.

[0010] Furthermore, the upper and lower cutting blades are located in the same vertical plane, the drive shaft is rotatably connected inside the mounting bracket, and the diameter of the upper cutting blade is larger than the diameter of the lower cutting blade.

[0011] Furthermore, the top of the corrugated pipe positioning plate is provided with a corrugated pipe clamping groove, the corrugated pipe clamping groove is arc-shaped, and the lower cutting blade is located inside the corrugated pipe clamping groove.

[0012] Furthermore, the number of bellows positioning clamps is two and they are arc-shaped. The two bellows positioning clamps form a bellows limiting sleeve. The arc-shaped limiting seat is semi-circular in shape. The two arc-shaped limiting seats form a bellows limiting ring. The bellows limiting ring has an annular limiting groove inside. The diameter of the bellows limiting sleeve is the same as the inner diameter of the rotating friction sleeve. The rotating friction sleeve is rotatably connected to the inside of the handheld circular seat. The limiting ring is fixedly installed on the inner circumferential wall of the rotating friction sleeve.

[0013] Furthermore, the mounting bracket is fixedly mounted on the top of the processing table.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This corrugated pipe rolling cutter uses an electric lifting rod, lifting frame, and first drive motor to move the upper cutting blade downwards, causing the inner and outer circumferential walls of the corrugated pipe to contact the lower and upper cutting blades respectively. The collision of the upper and lower blades achieves a two-sided cutting effect, crushing the vertical edge of the corrugated pipe and achieving the edge-cutting effect. This avoids the problem of pitting on the vertical edge of the corrugated pipe and increases the output of corrugated pipes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Right side structural diagram;

[0018] Figure 3 This is a schematic diagram of the upper cutting blade mounting structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the corrugated pipe positioning clamp structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the handheld circular base, rotating friction sleeve, and limiting ring structure of this utility model.

[0021] In the picture:

[0022] 1. Processing table; 2. Mounting frame; 3. Electric lifting rod; 4. Lifting frame; 5. First drive motor; 6. Threaded rod; 7. Mounting ring; 8. Mounting clamp; 9. Upper cutting blade; 10. Nut; 11. Mounting plate; 12. Second drive motor; 13. Drive shaft; 14. Lower cutting blade; 15. Corrugated pipe positioning plate; 16. Corrugated pipe positioning fixture; 17. Arc-shaped limit seat; 18. Handheld circular seat; 19. Rotating friction sleeve; 20. Limiting ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 5 The corrugated pipe rolling cutter in this embodiment includes a processing table 1, two mounting frames 2, a corrugated pipe positioning clamp 16, an arc-shaped limiting seat 17, a handheld circular seat 18, a rotating friction sleeve 19, and a limiting ring 20. The top of the processing table 1 is provided with an adjustable cutting structure.

[0025] Mounting bracket 2 is fixedly installed on the top of processing table 1.

[0026] There are two bellows positioning clamps 16, which are arc-shaped. The two bellows positioning clamps 16 form a bellows limiting sleeve. The arc-shaped limiting seat 17 is semi-circular. The two arc-shaped limiting seats 17 form a bellows limiting ring. The bellows limiting ring has an annular limiting groove inside. The diameter of the bellows limiting sleeve is the same as the inner diameter of the rotating friction sleeve 19. The rotating friction sleeve 19 is rotatably connected to the inside of the handheld circular seat 18. The limiting ring 20 is fixedly installed on the inner circumferential wall of the rotating friction sleeve 19.

[0027] The adjustable cutting structure includes an electric lifting rod 3 fixedly installed on the top outer wall of the mounting frame 2. A lifting frame 4 is fixedly installed on the telescopic shaft of the electric lifting rod 3. A first drive motor 5 is fixedly installed on the bottom inner wall of the lifting frame 4. The telescopic shaft of the electric lifting rod 3 passes through the interior of the mounting frame 2 and extends inward. An installation groove is opened at the bottom of the lifting frame 4. The first drive motor 5 is installed inside the installation groove and is of a suitable size.

[0028] A threaded rod 6 is fixedly installed on the output shaft of the first drive motor 5. An installation ring 7 is fixedly installed on the outer peripheral wall of the output shaft of the first drive motor 5. Two installation clamps 8 are slidably connected to the outer peripheral wall of the output shaft of the first drive motor 5. An upper cutting blade 9 is movably installed between the two installation clamps 8. The upper cutting blade 9 is slidably connected to the outer peripheral wall of the output shaft of the first drive motor 5. The installation clamps 8 are circular, and the diameter of the upper cutting blade 9 is larger than the diameter of the installation clamps 8.

[0029] The outer peripheral wall of the threaded rod 6 is threaded with a nut 10. The outer walls of the two mounting plates 8 on opposite sides are respectively attached to the outer walls of the mounting ring 7 and the opposite side of the nut 10. Two mounting plates 11 are fixedly installed on the top outer wall of the processing table 1. The second drive motor 12 is fixedly installed on the right outer wall of the mounting plate 11. The output shaft of the second drive motor 12 is fixedly installed with a drive shaft 13. The outer peripheral wall of the drive shaft 13 is fixedly installed with a lower cutting blade 14. The upper cutting blade 9 and the lower cutting blade 14 are located in the same vertical plane. The drive shaft 13 is rotatably connected to the inside of the mounting frame 2. The diameter of the upper cutting blade 9 is larger than the diameter of the lower cutting blade 14. The inside of the mounting frame 2 is fixed with a corrugated pipe positioning plate 15. The top of the corrugated pipe positioning plate 15 is provided with a corrugated pipe clamping groove. The corrugated pipe clamping groove is arc-shaped. The lower cutting blade 14 is located inside the corrugated pipe clamping groove.

[0030] In this embodiment, the corrugated pipe is clamped and positioned by two corrugated pipe positioning clamps 16. The cut ends of the corrugated pipe are located on the left and right sides outside the corrugated pipe positioning clamps 16, and are engaged with the outer peripheral wall of the corrugated pipe by the arc-shaped limiting seat 17 to prevent the corrugated pipe from moving.

[0031] In this embodiment, when the bellows positioning clamp 16 is slidably connected to the inside of the rotating friction sleeve 19, the cut ends of the bellows will be located outside the bellows positioning clamp 16, so the cut ends of the bellows will move to the inside of the limiting ring 20, and the limiting ring 20 will limit the bellows positioning clamp 16.

[0032] In this embodiment, the inner peripheral wall of the rotating friction sleeve 19 has a certain friction force, which causes the rotating friction sleeve 19 to rotate while driving the bellows positioning clamp 16 to rotate.

[0033] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the 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, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0034] The working principle of the above embodiments is as follows:

[0035] First, the corrugated pipe is installed inside the two corrugated pipe positioning clamps 16. At this time, the cut section of the corrugated pipe will be located on the outside of both sides of the corrugated pipe positioning clamps 16. Then, the corrugated pipe positioning clamps 16 are slidably connected to the inner circumferential wall of the rotating friction sleeve 19. At this time, the operator picks up the handheld circular seat 18 and slides the corrugated pipe into the corrugated pipe clamping groove. At this time, the lower cutting blade 14 will be located inside the corrugated pipe, and the cut section of the corrugated pipe will be located between the lower cutting blade 14 and the upper cutting blade 9. Then, the first drive motor 5 and the second drive motor 12 are started to drive the upper cutting blade 9 and the lower cutting blade 14 to rotate respectively. Finally, the electric lifting rod 3 is started to drive the upper cutting blade 9 to move downward. At this time, the upper cutting blade 9 will squeeze the cut section of the corrugated pipe downward, and make the inner and outer circumferential walls of the cut section of the corrugated pipe contact the lower cutting blade 14 and the upper cutting blade 9 respectively. At this time, the effect of cutting on both sides is achieved by the collision of the upper and lower blades.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrugated pipe rolling cutting machine, comprising a processing table (1), two mounting racks (2), a corrugated pipe positioning clamp (16), an arc-shaped limiting seat (17), a handheld circular seat (18), a rotating friction sleeve (19) and a limiting ring (20), characterized in that: The top of the processing table (1) is provided with an adjusting cutting structure; The adjusting cutting structure comprises a motor-driven lifting rod (3) fixedly installed on the top outer wall of the mounting frame (2), a lifting frame (4) fixedly installed on the telescopic shaft of the motor-driven lifting rod (3), a first driving motor (5) fixedly installed on the bottom inner wall of the lifting frame (4), a threaded rod (6) fixedly installed on the output shaft of the first driving motor (5), a mounting ring (7) fixedly installed on the outer peripheral wall of the output shaft of the first driving motor (5), two mounting clamping plates (8) slidably connected to the outer peripheral wall of the output shaft of the first driving motor (5), an upper cutting knife (9) movably installed between the two mounting clamping plates (8), a nut (10) threadedly connected to the outer peripheral wall of the threaded rod (6), two mounting plates (11) fixedly installed on the top outer wall of the processing table (1), a second driving motor (12) fixedly installed on the right outer wall of the mounting plate (11), a driving shaft (13) fixedly installed on the output shaft of the second driving motor (12), a lower cutting knife (14) fixedly installed on the outer peripheral wall of the driving shaft (13), and a corrugated tube positioning plate (15) fixedly installed in the mounting frame (2).

2. A bellows rotary cutting machine according to claim 1, characterised in that: The telescopic shaft of the motor-driven lifting rod (3) penetrates through the inside of the mounting frame (2) and extends inwardly, the bottom of the lifting frame (4) is provided with a mounting groove, and the first driving motor (5) is installed in the mounting groove and is appropriately sized.

3. The bellows rotary cutter of claim 1, wherein: The upper cutting knife (9) is slidably connected to the outer peripheral wall of the output shaft of the first driving motor (5), the mounting clamping plate (8) is circular, and the diameter of the upper cutting knife (9) is greater than that of the mounting clamping plate (8).

4. The bellows rotary cutter of claim 1, wherein: The outer walls of the two mounting clamping plates (8) on the opposite sides are respectively attached to the opposite outer walls of the mounting ring (7) and the nut (10).

5. The bellows rotary cutter of claim 1, wherein: The upper cutting knife (9) and the lower cutting knife (14) are located in the same vertical plane, the driving shaft (13) is rotatably connected to the inside of the mounting frame (2), and the diameter of the upper cutting knife (9) is greater than that of the lower cutting knife (14).

6. The bellows rotary cutter of claim 1, wherein: The top of the corrugated tube positioning plate (15) is provided with a corrugated tube clamping groove, the corrugated tube clamping groove is arc-shaped, and the lower cutting knife (14) is located in the inside of the corrugated tube clamping groove.

7. The bellows rotary cutter of claim 1, wherein: The number of the corrugated tube positioning clamps (16) is two and they are arc-shaped, the two corrugated tube positioning clamps (16) form a corrugated tube limiting sleeve, the arc-shaped limiting seat (17) is semi-annular, the two arc-shaped limiting seats (17) form a corrugated tube limiting ring, the inside of the corrugated tube limiting ring is provided with an annular limiting groove, the diameter of the corrugated tube limiting sleeve is the same as the inner diameter of the rotating friction sleeve (19), the rotating friction sleeve (19) is rotatably connected to the inside of the handheld circular seat (18), and the limiting ring (20) is fixedly installed on the inner peripheral wall of the rotating friction sleeve (19).

8. The bellows rotary cutter of claim 1, wherein: The mounting frame (2) is fixedly installed on the top of the processing table (1).