Fixed-length cutting equipment for nodular cast iron pipe

By designing a fixed-length cutting device for ductile iron pipes, using soft and wear-resistant materials for clamping and a high-precision measurement system, combined with an air jet nozzle to remove smoke and dust, the problem of smoke and dust during laser cutting has been solved, improving cutting accuracy and environmental safety.

CN224058945UActive Publication Date: 2026-03-31HUBEI YITONG CASTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing technologies, the smoke and dust generated during laser cutting of ductile iron pipes affect the air quality of the working environment, reduce cutting accuracy and efficiency, and pose a risk of fire and explosion.

Method used

A ductile iron pipe length-cutting device was designed, comprising a length-cutting component and a support measuring component. It uses soft and wear-resistant materials for clamping, integrates a high-precision measuring system, and is equipped with an automatic clamping force adjustment and an air jet for removing smoke and dust.

Benefits of technology

It enables precise measurement and positioning of ductile iron pipes, improves cutting accuracy, reduces errors, ensures pipeline stability, eliminates smoke and dust, improves the working environment, and reduces the risk of equipment pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipeline cutting, and particularly discloses nodular cast iron pipe fixed-length cutting-off equipment which comprises a fixed-length cutting-off assembly used for fixed-length cutting and a target object arranged in the fixed-length cutting-off assembly. The fixed-length cut-off assembly comprises a bottom plate, a fixing frame is arranged on the top of the bottom plate, and a supporting measuring piece and a supporting frame are arranged on the fixing frame in a mirror symmetry mode. Through the design of the supporting measuring piece, the adjusting rod and the telescopic piece, the equipment can accurately measure and position the nodular cast iron pipe, the accuracy of the cutting length is ensured, errors are reduced, the equipment can automatically adjust the position of the cutting head according to measured data, the cutting precision is further improved, and the production efficiency is improved. The pipeline cutting device is simple in structure, meets the cutting requirements of pipelines with different lengths, can be tightly attached to the outer side of the nodular cast iron pipe through the design of the inner side attaching blocks and the clamping pieces of the clamping area, provides stable and reliable clamping force and prevents the pipelines from moving in the cutting process.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline cutting technical field, concretely is a nodular cast iron pipe fixed length cutting device. BACKGROUND

[0002] Nodular cast iron pipe because its excellent mechanical property, corrosion resistance and longer service life, have been widely used in many fields. Such as city water supply system, industrial pipeline etc.

[0003] Before using pipeline, generally will cut pipeline, already satisfy the length need of laying, in traditional cutting process, generally adopt the mode of laser cutting, when cutting, because the position of cutting mouth and laser contact will produce smoke and dust, this is the common phenomenon in laser cutting process;

[0004] But smoke and dust can influence the air quality of working environment, the health of operator is threatened, and smoke and dust can be attached on the optical element of laser cutting machine, influence laser beam transmission and focus, reduce cutting precision and efficiency, certain dust (such as metal dust) has combustibility, if concentration reaches certain level, possibly will cause fire or explosion, based on this, the present application provides a nodular cast iron pipe fixed length cutting device. CONTENT OF UTILITY MODEL

[0005] In view of the deficiency of prior art, the utility model provides a nodular cast iron pipe fixed length cutting device, solves the problem that cutting mouth and laser contact will produce smoke and dust when using laser cutting in prior art, smoke and dust can influence the air quality of working environment, reduce cutting precision and efficiency.

[0006] The nodular cast iron pipe fixed length cutting device of the utility model, including the fixed length cutting assembly for fixed length cutting and the target object arranged in the fixed length cutting assembly;

[0007] The fixed length cutting assembly includes the bottom plate, the top of the bottom plate is provided with the fixing frame, the fixing frame is provided with the support measuring piece and the support frame in mirror image symmetry, and is used for fixed length measurement and support of the target object.

[0008] The support frame includes the frame body, the inner side of the frame body is provided with the clamping area, and the inner side of the clamping area is provided with the inner side block for clamping the outer side of the target object.

[0009] As a further improvement of the utility model, one side of the support measuring piece is provided with the tray, and the other side of the support measuring piece is provided with the adjusting rod for adjusting the position of the tray on one side of the support measuring piece.

[0010] As a further improvement of the utility model, the bottom of the supporting and measuring member is provided with a telescopic member, the bottom of the telescopic member is fixed with the bottom plate and is located at one side of the fixing frame.

[0011] As a further improvement of the utility model, one side of the fixing frame is provided with a clamping member, the inner side of the clamping member is matched with the outer side of the target object.

[0012] As a further improvement of the utility model, the top of the fixing frame is provided with a cutting head, the cutting head is located at one side of the clamping member, and the bottom of the cutting head is kept with a fixed distance from the outer side of the target object.

[0013] As a further improvement of the utility model, a matching arc-shaped plate is arranged at the fixed distance between the cutting head and the target object, and the bottom of the matching arc-shaped plate is matched with the target object.

[0014] As a further improvement of the utility model, the matching arc-shaped plate comprises a plate body, a through hole is formed in the plate body, and a mounting block is arranged at the middle part of the through hole.

[0015] As a further improvement of the utility model, a combined hole is formed in the middle part of the mounting block, and the combined hole is matched with the cutting head.

[0016] As a further improvement of the utility model, the inner walls of the through hole formed in the plate body are recessed inwardly to form a containing area, and a plurality of jet ports arranged in a ring array are arranged at the containing area to assist the cutting head in cutting.

[0017] Compared with the prior art, the utility model has the advantages as follows:

[0018] The utility model discloses a supporting and measuring member, an adjusting rod and a telescopic member, which can realize accurate measurement and positioning of the ductile cast iron pipe, ensure the accuracy of the cutting length, reduce errors, and automatically adjust the position of the cutting head according to the measurement data, further improve the cutting accuracy, meet the cutting requirements of pipes of different lengths, and the design of the inner side of the clamping area and the clamping member can tightly match the outer side of the ductile cast iron pipe, provide stable and reliable clamping force, and prevent displacement of the pipe during cutting.

[0019] Meanwhile, the equipment can automatically adjust the clamping force according to the diameter and weight of the pipe, avoid pipe damage or unstable positioning caused by excessive or insufficient clamping force, and the jet ports on the matching arc-shaped plate can effectively blow away the smoke and dust generated during cutting, keep the cutting area clean, and improve the cutting quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0021] Figure 1 It is a combination of the length cutting assembly and the target object of the utility model front view structure schematic drawing;

[0022] Figure 2 It is a support frame of the utility model three-dimensional structure schematic drawing;

[0023] Figure 3 It is a clamping three-dimensional structure schematic drawing of the length cutting assembly of the utility model;

[0024] Figure 4 It is a clamping top view structure schematic drawing of the length cutting assembly of the utility model;

[0025] Figure 5 It is a combination of the length cutting assembly and the target object of the utility model Figure 4 It is an enlarged structure schematic drawing of A in the utility model;

[0026] Figure 6 It is a fitting arc-shaped plate three-dimensional structure schematic drawing of the utility model;

[0027] Figure 7 It is a fitting arc-shaped plate top view structure schematic drawing of the utility model;

[0028] Figure 8 It is a combination of the length cutting assembly and the target object of the utility model Figure 7 It is an A-A cross section structure schematic drawing of the utility model.

[0029] In the drawings: 1, length cutting assembly; 2, target object;

[0030] 11, bottom plate; 12, telescopic part; 13, support measuring part; 14, adjusting rod; 15, tray; 16, fixing frame; 17, clamping part; 18, cutting head; 19, support frame; 110, fitting arc-shaped plate;

[0031] 191, frame body; 192, inner fitting block; 193, clamping area;

[0032] 1101, plate body; 1102, mounting block; 1103, combination hole; 1104, air injection port. DETAILED DESCRIPTION

[0033] The following will disclose a plurality of embodiments of the present application by using figures. For the purpose of clear illustration, many details of the embodiments will be described in the following description. However, it should be understood that these details of the embodiments should not be used to limit the present application. That is, in some embodiments of the present application, these details of the embodiments are not necessary. In addition, for the purpose of simplifying the figures, some conventional structures and components will be shown in a simple schematic manner in the figures.

[0034] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0035] Please refer to Figures 1-8 Before using the pipe, the pipe is generally cut to meet the length requirement of laying. In the traditional cutting process, the laser cutting method is generally used. During cutting, smoke and dust will be generated due to the contact between the cutting opening and the laser. This is a common phenomenon in the laser cutting process.

[0036] However, smoke and dust will affect the air quality of the working environment and pose a threat to the health of the operator. In addition, smoke and dust may adhere to the optical elements of the laser cutting machine, affecting the transmission and focusing of the laser beam, reducing the cutting precision and efficiency. Some dust (such as metal dust) is flammable. If the concentration reaches a certain level, it may cause a fire or explosion. Based on this, the present application provides a ductile cast iron pipe fixed-length cutting equipment, which comprises a fixed-length cutting assembly 1 for fixed-length cutting and a target object 2 arranged in the fixed-length cutting assembly 1.

[0037] The fixed-length cutting assembly 1 comprises a bottom plate 11, and a fixed frame 16 is arranged on the top of the bottom plate 11. The fixed frame 16 is symmetrically provided with a support measuring element 13 and a support frame 19, which are used for fixed-length measurement and support of the target object 2.

[0038] The support frame 19 comprises a frame body 191, and a clamping area 193 is formed in the inner side of the frame body 191. An inner side bonding block 192 is arranged at the clamping area 193, which is used for clamping the outer side of the target object 2.

[0039] The fixed frame 16 is arranged on the top of the bottom plate 11. The fixed frame 16 provides a stable support platform to ensure the stability of the support measuring element 13 and the support frame 19 during the cutting process.

[0040] The support measuring element 13 is used for length measurement of the target object 2 (ductile iron pipe), ensuring the accuracy of the cutting length. It usually contains a high-precision measuring device (such as a laser range finder or a mechanical length measuring device), which can monitor the length of the target object 2 in real time and transmit the data to the control system.

[0041] The support frame 19 is composed of a frame body 191, and the inner side of the frame body 191 is provided with a clamping area 193. The design of the clamping area 193 takes into account the shape and size of the ductile iron pipe, ensuring that the pipe surface will not be damaged during clamping.

[0042] The inner side block 192 provided at the clamping area 193 is made of soft and wear-resistant materials (such as rubber or high polymer), which can tightly fit the outer side of the target object 2, providing effective clamping force while avoiding scratches or damage to the pipe surface.

[0043] The shape and size of the clamping area 193 are customized according to the specifications of the ductile iron pipe, ensuring that the pipe can be stably and accurately positioned on the support frame 19 during clamping. The device can also be equipped with an automatic clamping force adjustment device that automatically adjusts the clamping force according to the diameter and weight of the pipe, avoiding pipe damage or unstable positioning caused by excessive or insufficient clamping force.

[0044] The high-precision measuring system integrated in the support measuring element 13 can monitor the length of the ductile iron pipe in real time and feed back the data to the control system, ensuring the accuracy of the cutting length. The device can automatically adjust the cutting position according to the measurement data, further improving the cutting accuracy.

[0045] The cutting device (such as a laser cutting machine or a mechanical cutting machine) is integrated at the top of the length cutting assembly 1, ensuring that the cutting can be quickly and accurately completed after the measurement is completed.

[0046] Through the support measuring element 13 and the high-precision measuring system, the device can realize accurate measurement and positioning of the ductile iron pipe, ensuring the accuracy of the cutting length and reducing errors.

[0047] Automatic adjustment function: the device can automatically adjust the cutting position according to the measurement data, further improving the cutting accuracy.

[0048] The inner side block 192 is made of soft and wear-resistant materials, which can tightly fit the outer side of the target object 2, providing effective clamping force and ensuring the stability of the pipe during cutting.

[0049] The device can automatically adjust the clamping force according to the diameter and weight of the pipe, avoiding pipe damage or unstable positioning caused by excessive or insufficient clamping force.

[0050] The side of the support measuring piece 13 is provided with a tray 15, and the other side of the support measuring piece 13 is provided with an adjusting rod 14 for adjusting the position of the tray 15 on the side of the support measuring piece 13.

[0051] The bottom of the support measuring piece 13 is provided with a telescopic piece 12, the bottom of the telescopic piece 12 is fixed with the bottom plate 11 and located on one side of the fixing frame 16.

[0052] One side of the fixing frame 16 is provided with a clamping piece 17, the inner side of the clamping piece 17 is adapted to the outer side of the target object 2.

[0053] The top of the fixing frame 16 is provided with a cutting head 18, the cutting head 18 is located on one side of the clamping piece 17, and the bottom of the cutting head 18 maintains a fixed distance with the outer side of the target object 2.

[0054] The cutting head 18 is provided with a matching arc-shaped plate 110 at the fixed distance with the target object 2, and the arc-shaped plate 110 is adapted to the bottom of the target object 2.

[0055] The side of the support measuring piece 13 is provided with a tray 15 for placing or supporting the ductile iron pipe. The design of the tray 15 should consider the weight and size of the pipe to ensure stable support. The other side of the support measuring piece 13 is provided with an adjusting rod 14 for adjusting the position of the tray 15 on the side of the support measuring piece 13. Through the adjusting rod 14, the operator can accurately adjust the position of the tray 15 to adapt to pipes of different lengths, realizing accurate fixed-length measurement.

[0056] The bottom of the support measuring piece 13 is provided with a telescopic piece 12, the bottom of the telescopic piece 12 is fixed with the bottom plate 11 and located on one side of the fixing frame 16. The telescopic piece 12 allows the support measuring piece 13 to adjust the position in the vertical direction to adapt to pipes of different diameters or adjust the measurement height.

[0057] One side of the fixing frame 16 is provided with a clamping piece 17, the inner side of the clamping piece 17 is adapted to the outer side of the target object 2 (ductile iron pipe). The clamping piece 17 is used to further fix the position of the pipe to ensure that the pipe does not move during cutting, improving the stability of cutting.

[0058] The top of the fixing frame 16 is provided with a cutting head 18, the cutting head 18 is located on one side of the clamping piece 17. The bottom of the cutting head 18 maintains a fixed distance with the outer side of the target object 2, which is pre-set according to the cutting requirements to ensure the accuracy of the cutting position.

[0059] The cutting head 18 is provided with a matching arc-shaped plate 110 at the fixed distance with the target object 2, and the arc-shaped plate is adapted to the bottom of the target object 2. The function of the arc-shaped plate 110 is to support the stress part of the pipe during cutting to prevent the pipe from deforming due to cutting stress, and also helps to improve the cutting quality.

[0060] Through the cooperation of the tray 15 and the adjusting rod 14, the operator can accurately adjust the position of the pipeline, realize accurate length measurement, and reduce measurement error.

[0061] The telescopic part 12 allows the supporting measuring part 13 to adjust the position in the vertical direction, so as to adapt to pipelines of different diameters, and improve the universality of the equipment.

[0062] The inner side of the clamping part 17 is adapted to the outer side of the pipeline, which ensures the stability of the pipeline during cutting and prevents cutting deviation caused by pipeline movement.

[0063] The cutting head 18 maintains a fixed distance from the pipeline and supports the pipeline through the matching arc-shaped plate 110, which ensures uniform stress during cutting, improves cutting quality, and reduces pipeline deformation. The multiple adjustable components (such as the adjusting rod 14 and the telescopic part 12) of the equipment allow the operator to make flexible adjustments according to different pipeline specifications and cutting requirements, improving the operation convenience of the equipment.

[0064] The matching arc-shaped plate 110 includes a plate body 1101, and a through hole is formed in the plate body 1101, and an installation block 1102 is arranged in the middle of the through hole.

[0065] A combination hole 1103 is formed in the middle of the installation block 1102, and the combination hole 1103 is adapted to the cutting head 18.

[0066] The inner sides of the inner walls of the through hole formed in the plate body 1101 are recessed inward to form a containing area, and a plurality of jet ports 1104 arranged in a ring array are arranged in the containing area to assist the cutting head 18 in cutting.

[0067] The matching arc-shaped plate 110 includes a plate body 1101, and a through hole is formed in the plate body 1101, and an installation block 1102 is arranged in the middle of the through hole. The design of the through hole is to allow the cutting head 18 to pass through and directly cut the pipeline.

[0068] An installation block 1102 is arranged in the middle of the through hole, and the installation block 1102 is used to fix and guide the cutting head 18, so as to ensure that the cutting head 18 accurately aligns with the cutting position.

[0069] A combination hole 1103 is formed in the middle of the installation block 1102, and the combination hole 1103 is adapted to the cutting head 18, that is, the size and shape of the combination hole 1103 match the cutting head 18, so that the cutting head 18 can be accurately inserted and fixed in the installation block 1102. Through the combination hole 1103, the position of the cutting head 18 can be ensured to be accurate, so as to ensure the accuracy and consistency of cutting.

[0070] The inner wall of the through hole of the plate body 1101 is recessed inward on both sides to form a containing area. In the containing area, a plurality of jet ports 1104 arranged in a ring array are arranged. The jet ports 1104 are designed to assist the cutting head 18 in cutting. The gas (such as compressed air or nitrogen gas used as auxiliary gas, which can reduce oxidation reaction and reduce smoke generation) sprayed through the jet ports 1104 can effectively blow away the smoke and dust generated during cutting, keep the cutting area clean, and improve the cutting quality.

[0071] The design of the mounting block 1102 and the combined hole 1103 ensures that the cutting head 18 can be accurately positioned at the cutting position, improving the accuracy and repeatability of the cutting.

[0072] The gas sprayed through the jet ports 1104 can effectively remove the smoke and dust generated during cutting, keep the cutting area clean, and facilitate the operator to observe the cutting process, while reducing the pollution to the equipment. The smoke and dust blown away by the jet ports 1104 reduces the adverse effects on the cutting head 18, such as preventing the smoke and dust from adhering to the optical elements during laser cutting, ensuring the quality and focusing accuracy of the laser beam, thereby improving the cutting quality.

[0073] By timely removing the waste and dust generated during cutting, the wear and pollution of the equipment by these impurities can be reduced, prolonging the service life of the equipment.

[0074] Removing the smoke and dust helps to improve the working environment, reduce the potential harm to the operator's health, and improve the operation safety.

[0075] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A ductile cast iron pipe fixed-length cutting device, comprising a fixed-length cutting assembly (1) for fixed-length cutting and a target object (2) arranged in the fixed-length cutting assembly (1); Characterized in that: The fixed-length cutting assembly (1) comprises a bottom plate (11), the top of the bottom plate (11) is provided with a fixing frame (16), the fixing frame (16) is symmetrically provided with a supporting measuring element (13) and a supporting frame (19), which are used for fixed-length measurement and supporting of the target object (2); The supporting frame (19) comprises a frame body (191), the inner side of the frame body (191) is provided with a clamping area (193), and the inner side of the clamping area (193) is provided with an inner side fitting block (192) for clamping the outer side of the target object (2).

2. A ductile iron pipe fixed-length cutting apparatus according to claim 1, characterized in that: One side of the supporting measuring element (13) is provided with a tray (15), and the other side of the supporting measuring element (13) is provided with an adjusting rod (14) for adjusting the position of the tray (15) on one side of the supporting measuring element (13).

3. The apparatus according to claim 1, wherein: The bottom of the supporting measuring element (13) is provided with a telescopic element (12), the bottom of the telescopic element (12) is fixed with the bottom plate (11) and located on one side of the fixing frame (16).

4. The apparatus according to claim 1, wherein: One side of the fixing frame (16) is provided with a clamping element (17), the inner side of the clamping element (17) is matched with the outer side of the target object (2).

5. The apparatus according to claim 1, wherein: The top of the fixing frame (16) is provided with a cutting head (18), the cutting head (18) is located on one side of the clamping element (17), and the bottom of the cutting head (18) is kept at a fixed distance from the outer side of the target object (2).

6. A ductile iron pipe fixed-length cutting apparatus according to claim 5, characterized in that: The cutting head (18) is provided with a fitting arc-shaped plate (110) at the fixed distance from the target object (2), and the fitting arc-shaped plate (110) is matched with the bottom of the target object (2).

7. A ductile iron pipe fixed-length cutting apparatus according to claim 6, characterized in that: The fitting arc-shaped plate (110) comprises a plate body (1101), the plate body (1101) is provided with a through hole, and an installation block (1102) is arranged in the middle of the through hole.

8. A ductile iron pipe fixed-length cutting apparatus according to claim 7, characterized in that: The middle of the installation block (1102) is provided with a combined hole (1103), and the combined hole (1103) is matched with the cutting head (18).

9. A ductile iron pipe fixed-length cutting apparatus according to claim 7, characterized in that: The inner walls of the through hole of the plate body (1101) are recessed inward, forming a containing area, and a jet port (1104) arranged in an annular array is arranged in the containing area, which is used for assisting cutting in cooperation with the cutting head (18).