CN202105987U

CN202105987U - Socket sand core for cast iron pipe

Info

Publication number: CN202105987U
Application number: CN2011201970312U
Authority: CN
Inventors: 焦为民; 李文忠; 蒋秀峰
Original assignee: Xinxing Ductile Iron Pipes Co Ltd
Current assignee: Xinxing Ductile Iron Pipes Co Ltd
Priority date: 2011-06-13
Filing date: 2011-06-13
Publication date: 2012-01-11
Anticipated expiration: 2021-06-13

Abstract

The utility model discloses a socket sand core for a cast iron pipe, which comprises a bamboo core rod and a sand mould which is compression-moulded and surrounds the bamboo core rod, wherein the bamboo core rod comprises a cylindrical frame formed by bundled bamboo chips; and an outer edge formed by bundled bamboo chips is arranged at the upper end of the cylindrical frame. The socket sand core for the cast iron pipe has the advantages that: the socket sand core made of the bamboo core rod is manufactured by a simple technique, light, convenient, low-cost and easy to pull the pipe during use, and increases the production efficiency.

Description

A kind of bell socket sand core that is used for cast iron pipe

Technical field

The utility model relates to a kind of bell socket sand core that is used for cast iron pipe, is applicable to cast iron tubing technical field.

Background technology

At present, generally adopt bone unshakable in one's determination to process for producing the employed bell socket sand core of cast iron pipe, bone unshakable in one's determination is welded by reinforcing bar; According to different cast iron casts; Supporting different dies according to the sized of mould bone framework unshakable in one's determination, is welded with electric welding more then.This bone unshakable in one's determination is relatively heavier, and manufacture craft is more loaded down with trivial details, and cost of manufacture is high.The bell socket sand core of being processed by bone unshakable in one's determination is in addition in use extracted difficulty, and the tube drawing number of repetition is many, and the time is long, and production efficiency is low.

The utility model content

The utility model technical problem to be solved provides a kind of bell socket sand core of processing with the bamboo arbor that is used for cast iron pipe, solves the problem of difficulty in decannulation in the existing bone bell socket sand core unshakable in one's determination use, enhances productivity.

For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of bell socket sand core that is used for cast iron pipe, and what comprise bamboo arbor and compression molding is enclosed in the outer sand mo(u)ld of bamboo arbor; Said bamboo arbor comprises the cartridge type skeleton of being rolled by bamboo chip, and the upper end of said cartridge type skeleton is provided with the outer of being rolled by bamboo chip.

The specification of the above-mentioned bamboo chip that uses is thick as 5mm, 10mm is wide.

Adopt the beneficial effect that technique scheme produced to be: the bell socket sand core that adopts the bamboo arbor to process, manufacture craft is simple, and is light, cost is low, and tube drawing is easy in the use, has improved production efficiency.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.

Fig. 1 is the structural representation of the utility model bamboo arbor;

Wherein, 1, the cartridge type skeleton, 2, outer.

The specific embodiment

The described a kind of bell socket sand core that is used for cast iron pipe of the utility model, what comprise bamboo arbor and compression molding is enclosed in the outer sand mo(u)ld of bamboo arbor; Of Fig. 1, said bamboo arbor comprises the cartridge type skeleton of being rolled by bamboo chip 1, and the upper end of said cartridge type skeleton is provided with the outer of being rolled by bamboo chip 2.

Said bamboo arbor bamboo chip mainly thick with 5mm, that 10mm is wide is rolled and is formed, and only needs cover moulds of industrial equipment to accomplish during making, according to different cast iron pipe cast adjustment corresponding mould sizes; Roll on mould with bamboo chip and to form, manufacture craft is simple, and labour intensity is low; Easy to use, cost is low.By the bell socket sand core that the bamboo arbor is processed, in the tube drawing process, core is defeated and dispersed, the burning of bamboo arbor comes off rapidly, has shortened extubation time, has improved production efficiency.In addition,, meet the requirement of low-carbon environment-friendly, have the characteristics of sustainable development with the bell socket sand core that the bamboo arbor is processed.

Claims

1. bell socket sand core that is used for cast iron pipe is characterized in that: what it comprised bamboo arbor and compression molding is enclosed in the outer sand mo(u)ld of bamboo arbor; Said bamboo arbor comprises the cartridge type skeleton of being rolled by bamboo chip (1), and the upper end of said cartridge type skeleton is provided with the outer of being rolled by bamboo chip (2).

2. a kind of bell socket sand core that is used for cast iron pipe according to claim 1 is characterized in that: the specification of said bamboo chip is that 5mm is thick, 10mm is wide.