CN215549081U

CN215549081U - A shape frock structure of preapring for an unfavorable turn of events for polyurethane pipe cutting

Info

Publication number: CN215549081U
Application number: CN202121499871.4U
Authority: CN
Inventors: 李河
Original assignee: Bfg International China Co ltd
Current assignee: Bfg International China Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-01-18
Anticipated expiration: 2031-07-02

Abstract

The utility model provides a shape frock structure of preapring for an unfavorable turn of events for polyurethane pipe cutting, for the base that is used for supporting the cutting, its main points are that vertical parallel respectively has a plurality of semicircular groove on the base up end, transversely is provided with the cutting groove on the base up end in the middle of a plurality of semicircular groove, and the cutting groove depth is greater than a plurality of semicircular groove depths. The utility model also reduces the daily maintenance cost of a subsequent pipeline system, improves the qualification rate of parts, greatly reduces the rejection rate of products, and simultaneously conforms to the safe, economic, efficient and simple design concept of the railway passenger car, thereby improving the overall quality of the toilet products of the motor train unit in our company and bringing considerable economic benefits to our company.

Description

A shape frock structure of preapring for an unfavorable turn of events for polyurethane pipe cutting

Technical Field

The utility model relates to the technical field of cutting, in particular to an anti-deformation tool structure for cutting a polyurethane pipe.

Background

With the rapid development of rail transit industry, China high-speed rails are in existence, the research and development and the manufacture of motor train units are from learning foreign advanced technology to having independent intellectual property rights, and China high-speed rails are subject to face the world leading position at most regardless of speed and mileage. High-speed railway lines run across the whole country, and an eight-horizontal eight-vertical high-speed railway network is realized, under the background, the autonomous research and development of motor train units in China are also in mass production, the efficient and stable production of motor train units is not separated from the continuously improved technology and process level, and therefore new technology and method are required to be continuously injected in the process from part production to vehicle assembly, the aim of rapid production is achieved on the premise of stable quality through a simple and practical process method. For example, the connection of many pipelines in a motor train unit toilet needs to use a polyurethane pipe, and the excellent aging resistance and wear resistance of the polyurethane pipe make the polyurethane pipe a popular medium conveying pipeline for realizing gas and liquid conveying functions on the motor train unit toilet. Through the investigation, present EMUs bathroom pipe connection can use the polyurethane pipe of different in size, and this just needs to cut the polyurethane pipe for the suitable length of size, because of polyurethane pipe texture is softer, easily with mouth of pipe part cutting deformation in the cutting process, becomes "oval taper", leads to after installation polyurethane pipe, and with circular pipe fitting joint incomplete matching, leads to the pipe-line system the condition that leaks gas and leak water to appear, brings the inconvenience for follow-up debugging work.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the anti-deformation tool structure for cutting the polyurethane pipe, which has the advantages of simple structure, convenience in operation, no influence on the properties and functions of the polyurethane pipe and capability of well solving the problem of pipe orifice deformation.

The technical scheme adopted by the utility model is as follows:

the utility model provides a shape frock structure of preapring for an unfavorable turn of events for polyurethane pipe cutting, for the base that is used for supporting the cutting, its main points are that vertical parallel respectively has a plurality of semicircular groove on the base up end, transversely is provided with the cutting groove on the base up end in the middle of a plurality of semicircular groove, and the cutting groove depth is greater than a plurality of semicircular groove depths.

The diameters of the semicircular grooves are different, and the semicircular grooves can be used for cutting polyurethane pipes with different diameters.

The polyurethane pipe cutting base structure has the advantages that the polyurethane pipe is placed on the plurality of semicircular grooves in the base before the polyurethane pipe is cut by the aid of the cutting base with the semicircular grooves, and then the polyurethane pipe is transversely cut at the positions of the cutting grooves, so that the polyurethane pipe can be supported, the polyurethane pipe is prevented from being cut flat, and the probability of water leakage and air leakage in the subsequent debugging process is greatly reduced.

The utility model has no influence on the property and the function of the polyurethane tube, well solves the problem of tube orifice deformation, solves the actual production problem by a simple and practical process method, greatly improves the production and installation efficiency, and ensures the smooth assembly and debugging of toilet products, thereby meeting the delivery plan required by customers. Meanwhile, the utility model also reduces the daily maintenance cost of a subsequent pipeline system, improves the qualification rate of parts, greatly reduces the rejection rate of products, and conforms to the safe, economic, efficient and simple design concept of the railway passenger car, thereby improving the overall quality of the toilet products of the motor train unit in our company and bringing considerable economic benefits to our company.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic view of the present invention cutting a polyurethane tube.

FIG. 3 is a comparison of the original polyurethane tube orifice and the polyurethane tube orifice after cutting.

Detailed Description

The utility model provides a shape frock structure of preapring for an unfavorable turn of events for polyurethane pipe cutting, for being used for supporting base 1 of cutting, its main points are that vertical parallel arrangement has a plurality of semicircular groove 2 respectively on base 1 up end, transversely is provided with cutting groove 3 on the base 1 up end in the middle of a plurality of semicircular groove 2, and the 3 degree of depth of cutting groove is greater than a plurality of semicircular groove 2 degree of depth.

Referring to fig. 1 and 2, the aluminium alloy is chooseed for use to base 1 material, and the aluminium alloy has characteristics such as light, workable, anticorrosive, can guarantee that base 1 preparation is simple and easy and have longer life, and this cutting base 1 has set up the semicircular groove 2 of different diameters size to the polyurethane pipe of the different specifications of use moreover, makes things convenient for the matching of polyurethane pipe and places, and simultaneously, this frock structure still designs cutting groove 3, makes things convenient for the cutter cutting. Before cutting the polyurethane pipe, the polyurethane pipe is placed on the corresponding semicircular groove 2 according to the diameter size of the polyurethane pipe, and then a cutter is used for cutting the polyurethane pipe along the cutting groove 3. Due to the structure of the semicircular groove 2 of the cutting base 1, the lower part of the polyurethane tube 4 is subjected to the reaction force D of the whole semicircular groove 2 under the condition of being subjected to the cutting force F, so that the semicircular groove 2 plays a role in supporting the tube body of the polyurethane tube 4, and the tube opening is prevented from deforming under the condition of being subjected to the external shearing force of the polyurethane tube 4.

Referring to fig. 3, at the in-process of intercepting polyurethane pipe 4, because the cutting atress, the circular mouth of pipe of former polyurethane pipe 4 produces deformation and is difficult for kick-backing to former mouth of pipe shape, becomes "elliptic cone shape" mouth of pipe 5 shape of polyurethane pipe 4 after the cutting, and this just leads to installing polyurethane pipe back, and the mouth of pipe part is because can not coincide completely with pipe fitting joint shape, leads to the condition of leaking gas and leaking water to take place to work such as subsequent debugging of influence bathroom pipeline.

Claims

1. The utility model provides a shape frock structure of preapring for an unfavorable turn of events for polyurethane pipe cutting, for base (1) that is used for supporting the cutting, characterized by is provided with a plurality of semi-circular recess (2) on base (1) up end respectively vertical parallel, transversely is provided with cutting groove (3) on base (1) up end in the middle of a plurality of semi-circular recess (2), and cutting groove (3) degree of depth is greater than a plurality of semi-circular recess (2) degree of depth.

2. The anti-deformation tooling structure for cutting the polyurethane pipes as claimed in claim 1, wherein the diameters of the plurality of semicircular grooves (2) are respectively different, and the polyurethane pipes (4) with different diameters can be cut.