CN219292694U

CN219292694U - Pipe fitting mould with exhaust needle

Info

Publication number: CN219292694U
Application number: CN202320126546.6U
Authority: CN
Inventors: 张凤格; 刘双栋; 冯秀华; 叶连生; 袁进平; 黄起全
Original assignee: Cangzhou Yongxin Casting Co ltd
Current assignee: Cangzhou Yongxin Casting Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-07-04
Anticipated expiration: 2033-01-12

Abstract

The utility model discloses a pipe fitting die with an exhaust needle, which comprises a pipe fitting and locking devices arranged on two sides of the pipe fitting; the pipe fitting comprises an upper pipe fitting and a lower pipe fitting symmetrically arranged below the upper pipe fitting, wherein the upper pipe fitting and the lower pipe fitting both comprise a pipe head, an exhaust needle, an inner pipe wall arranged on the left side of the pipe head and an outer pipe wall arranged on the right side of the pipe head; the locking device comprises an upper sliding sleeve, a lower sliding sleeve and a sliding rod which is arranged in the upper sliding sleeve in a sliding manner. The pipe fitting die with the air exhaust needle has reasonable design structure, and the air exhaust needle is additionally arranged on the pipe head, so that the air generated in the cavity is smoothly exhausted from the air exhaust needle part in the casting process, and no air bubble is generated, thereby ensuring that molten iron is smoothly molded.

Description

Pipe fitting mould with exhaust needle

Technical Field

The utility model relates to the technical field of pipe casting, in particular to a pipe mold with an exhaust needle.

Background

Along with the development of the mechanical industry at home and abroad, more and more casting enterprises carry out technical upgrades, the traditional stall modeling and the manual modeling of simple modeling equipment are changed into a casting production line and a modeling machine modeling, because the modeling machine and the production line are manufactured, the sand mould hardness is high and constant, the sand mould compactness is higher, but the air exhaustion of the sand mould is poorer, and in the casting molding process, a large amount of air caused by the combustion of resin in a sand core, water in the sand mould and other organic matters cannot be smoothly exhausted, so that casting defects such as air holding, air holes and the like are generated in the casting, the quality of the casting is influenced, the manual exhaust hole punching is inconvenient, the existing exhaust mode is generally that an exhaust hole is formed in a core box, an exhaust plug is arranged in the exhaust hole, and the exhaust is carried out through the exhaust plug. However, after long-time use, sand grains easily enter the exhaust holes, so that the exhaust holes are blocked, the exhaust function is invalid, and the quality problems of insufficient sand core, loose sand core and the like of the product are caused. Therefore, a device capable of smoothly exhausting air during casting is needed, so that the problems of air holding, air hole generation and the like in casting are solved.

Disclosure of Invention

The utility model aims to provide a pipe fitting die with an exhaust needle, which solves the problems of product scrapping caused by the defects of air nest, air bubbles and cold insulation generated in the casting process in the technology.

In order to achieve the above object, the present utility model provides a pipe mold with an exhaust needle, comprising a pipe and locking devices disposed at both sides of the pipe; the pipe fitting comprises an upper pipe fitting and a lower pipe fitting symmetrically arranged below the upper pipe fitting, wherein the upper pipe fitting and the lower pipe fitting both comprise a pipe head, an exhaust needle, an inner pipe wall arranged on the left side of the pipe head and an outer pipe wall arranged on the right side of the pipe head; the locking device comprises an upper sliding sleeve, a lower sliding sleeve and a sliding rod which is arranged in the upper sliding sleeve in a sliding manner.

Preferably, the upper sliding sleeve is arranged on two sides of the upper pipe fitting, the lower sliding sleeve is arranged on two sides of the lower pipe fitting, the upper sliding sleeve and the lower sliding sleeve are arranged in a staggered mode, the right side of the upper sliding sleeve is aligned with the left side of the lower sliding sleeve during staggered arrangement, and therefore a gap is not reserved between the upper sliding sleeve and the lower sliding sleeve after the sliding rod slides in.

Preferably, the diameter of the sleeve opening of the upper sliding sleeve and the diameter of the sleeve opening of the lower sliding sleeve are equal to the diameter of the sliding rod, so that the sliding rod can smoothly slide into the upper sliding sleeve and the lower sliding sleeve, and the upper pipe fitting and the lower pipe fitting are buckled more firmly.

Preferably, the two ends of the pipe fitting are respectively provided with a positioning core head, so that the sand core is convenient to fix, and the phenomenon of drifting core is prevented.

Preferably, the exhaust needle is disposed above the cartridge.

Therefore, the pipe fitting mold with the air exhaust needle has the advantages that the air exhaust needle is additionally arranged on the pipe head, so that the air generated in the cavity is smoothly discharged from the air exhaust needle part in the casting process, and the molten iron is ensured to be punched smoothly. Thereby solving the problems of the prior art that the product is scrapped due to the defects of generating nest gas, bubbles and cold insulation in the casting process.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic view of a pipe mold with an air vent pin according to the present utility model;

wherein, 1, the inner pipe wall; 2. an exhaust needle; 3. a tube head; 4. positioning the core print; 5. a pipe fitting; 6. an outer tube wall; 7. a slide bar; 8. a sliding sleeve is arranged on the upper part; 9. a lower sliding sleeve; 10. locking device.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Examples

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1, a pipe mold with a vent pin includes a pipe and locking devices 10 disposed on both sides of the pipe; the pipe fitting comprises an upper pipe fitting 5 and a lower pipe fitting symmetrically arranged below the upper pipe fitting, wherein the upper pipe fitting 5 and the lower pipe fitting both comprise a pipe head 3, an exhaust needle 2, an inner pipe wall 1 arranged on the left side of the pipe head 3 and an outer pipe wall 6 arranged on the right side of the pipe head 3, and the exhaust needle 2 is arranged above the pipe head 3, so that gas generated during pouring is conveniently and smoothly discharged, and no bubbles are generated in pouring liquid flushing; the locking device 10 comprises an upper sliding sleeve 8, a lower sliding sleeve 9 and a sliding rod 7 which is arranged in the upper sliding sleeve 8 in a sliding manner. The upper sliding sleeve 8 is arranged on two sides of the upper pipe fitting 5, the lower sliding sleeve 9 is arranged on two sides of the lower pipe fitting, the upper sliding sleeve 8 and the lower sliding sleeve 9 are arranged in a staggered mode, the right side of the upper sliding sleeve 8 is aligned with the left side of the lower sliding sleeve 9 during staggered arrangement, and therefore a gap is not reserved between the upper sliding sleeve 8 and the lower sliding sleeve 9 after the sliding rod 7 slides in. The diameter of the sleeve opening of the upper sliding sleeve 8 and the diameter of the sleeve opening of the lower sliding sleeve 9 are equal to the diameter of the sliding rod 7, so that the sliding rod 7 can smoothly slide into the upper sliding sleeve 8 and the lower sliding sleeve 9, and the upper pipe fitting 5 and the lower pipe fitting are buckled more firmly. The two ends of the pipe fitting are respectively provided with a positioning core head 4, so that the sand core is convenient to fix, and the phenomenon of drifting core is prevented.

In the concrete implementation, firstly, the upper pipe fitting 5 is placed in the cope box, then the upper pipe fitting 5 is placed in the sand box for compaction, then the lower pipe fitting is buckled on the upper pipe fitting 5, the upper sliding sleeve 8 and the lower sliding sleeve 9 which are arranged in a staggered mode are aligned during buckling, the sliding rods 7 penetrate through the upper sliding sleeve 8 and the lower sliding sleeve 9, molding sand is placed at the place where the locking device 10 is not arranged to stably fix the upper pipe fitting 5 and the lower pipe fitting, molding sand is prevented from entering, then the sliding rods 7 are taken out, the upper pipe fitting and the lower pipe fitting are covered above the lower pipe fitting for compaction by sand casting, then the upper pipe fitting and the lower pipe fitting are respectively taken out, molding can be completed, casting liquid is cast in the molded cavity, gas generated in the casting process can be discharged from the exhaust needle, no bubble is ensured, after the casting liquid is cooled, the casting mold of the pipe fitting is completed smoothly, and the structures of auxiliary casting molds such as the exhaust needle 2, the locking device 10 and the like can be processed.

Therefore, the pipe fitting die with the exhaust needle solves the problem that products are scrapped due to the fact that air pockets, bubbles and cold insulation defects are generated in the casting process in the prior art. The utility model has reasonable design structure, and the exhaust needle is additionally arranged on the pipe head, so that the gas generated in the cavity is smoothly discharged from the exhaust needle part in the casting process, and no nest gas and bubbles are generated, thereby ensuring the smooth casting of molten iron.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A pipe fitting mould with exhaust needle, its characterized in that: comprises a pipe fitting and locking devices arranged at two sides of the pipe fitting; the pipe fitting comprises an upper pipe fitting and a lower pipe fitting symmetrically arranged below the upper pipe fitting, wherein the upper pipe fitting and the lower pipe fitting both comprise a pipe head, an exhaust needle, an inner pipe wall arranged on the left side of the pipe head and an outer pipe wall arranged on the right side of the pipe head; the locking device comprises an upper sliding sleeve, a lower sliding sleeve and a sliding rod which is arranged in the upper sliding sleeve in a sliding manner.

2. A pipe die with an exhaust needle as defined in claim 1, wherein: the upper sliding sleeve is arranged on two sides of the upper pipe fitting, the lower sliding sleeve is arranged on two sides of the lower pipe fitting, and the upper sliding sleeve and the lower sliding sleeve are arranged in a staggered mode.

3. A pipe die with an exhaust needle as defined in claim 1, wherein: the diameter of the sleeve opening of the upper sliding sleeve and the diameter of the sleeve opening of the lower sliding sleeve are equal to the diameter of the sliding rod.

4. A pipe die with an exhaust needle as defined in claim 1, wherein: the two ends of the pipe fitting are respectively provided with a positioning core head.

5. A pipe die with an exhaust needle as defined in claim 1, wherein: the exhaust needle is arranged above the tube head.