CN202071259U

CN202071259U - Push rod type arc-shaped core pulling mould

Info

Publication number: CN202071259U
Application number: CN2011200737452U
Authority: CN
Inventors: 严雄杰; 薛兵
Original assignee: ZHONGSHAN HENBIN PLASTIC MOULD CO Ltd
Current assignee: ZHONGSHAN HENBIN PLASTIC MOULD CO Ltd
Priority date: 2011-03-18
Filing date: 2011-03-18
Publication date: 2011-12-14
Anticipated expiration: 2021-03-18

Abstract

The utility model provides a push rod type arc-shaped core pulling mould, which comprises a spring part, an arc-shaped mould core, a push rod, a shaft core, a limit block, a guiding insert, a pull buckle, an ejector rod, an ejector retainer plate and a nozzle ejector. The spring part is fixed on a front mould, the arc-shaped mould core is hidden in an arc-shaped guiding groove of a back mould, the push rod is arranged under the arc-shaped mould core, the nozzle ejector penetrates through the guiding insert, the limit block is arranged above the ejector retainer plate, and the ejector rod is arranged in a bottom plate. A front mould elastic block is separated from the front mould and the back mould simultaneously under effects of a spring and the pull buckle in a mould opening process. While pushing the shaft core, the push rod drives the insert to move upwards together, and simultaneously the arc-shaped mould core is pulled in an arc shape under the effects of the guiding groove on the insert along an arc-shaped track. The arc-shaped core pulling structure is one-to-four, the back mould is divided into four split blocks, so that process of an arc-shaped tunnel can be facilitated. The push rod type arc-shaped core pulling mould is reasonable in structure, reduces cost, is convenient and practical to use, reduces maintenance cost and increases production efficiency.

Description

A kind of push-down arc mould of loosing core

Technical field

The utility model relates to mold machining technology, particularly relates to a kind of push-down arc mould of loosing core.

Background technology

For the product that barb or groove complexity are arranged, take oblique top or inner core pulling scheme mostly, the mode of loosing core generally adopts craft or mechanical type to loose core, the manual mode pickup is convenient, but goods damage easily during the demoulding, and the precision outward appearance can not get guaranteeing, and efficient is low, the cost of labor height.And adopt the mechanical gear structure to loose core, and the die cost height, gear structure manufacturing assembly difficulty is big, the maintenance cost height of mould.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art a kind of push-down arc mould of loosing core is provided, and when guaranteeing the finished product rate, reaches and reduces cost, enhances productivity.

Technical solutions of the utility model are as follows: a kind of push-down arc mould of loosing core, comprise spring members 1, arc core 2, push rod 3, axle core 4, limited block 5, guiding mold insert 6, draw buckle 7, push rod 8, pin base plate 9, mouth of a river thimble 10, it is characterized in that described spring members 1 is fixed in front mould, arc core 2 is ensconced in the arc guide groove of back mould, push rod 3 is positioned at the below of arc core 2, mouth of a river thimble 10 passes in guiding mold insert 6, limited block 5 is located at pin base plate 9 tops, and push rod 8 is arranged in base plate; During die sinking front mould bullet piece 12 spring 11 with draw under 7 the effect of buckle, make front mould bullet piece 12 and front and back mould be separated simultaneously.

Described push rod 3 drives guiding mold insert 6 and moves up together under the thrust of injection machine push rod in the time of impeller-hub core 4, arc core 2 realizes that along the track of arc arc looses core under the effect of the gathering sill on the mold insert simultaneously.

After the push rod of injection machine was return during matched moulds, front mould bullet piece 12 withstood arc core 2 under the deduction effect, forced arc core 2, guiding mold insert 6 and front mould bullet piece 12 to withstand simultaneously and resetted.

Described spring members 1 is made of spring 11, bullet piece 12, and spring 11 compresses bullet piece 12 and resets during matched moulds.

The described arc structure of loosing core is one to go out four, and back mould is divided into four edges and pieces together, and is convenient to the processing in arc tunnel.

After adopting such scheme, the utility model has following advantage: this is rational in infrastructure, reduces the cost, convenient and practical, reduces the maintenance cost of mould, has improved production efficiency.

Description of drawings

Fig. 1 is the stereogram of the utility model structure;

Fig. 2 is the generalized section of the utility model structure.

The specific embodiment

In order better to understand the utility model content, the utility model is further specified below in conjunction with accompanying drawing.

Consult accompanying drawing 1,2, the utility model provides a kind of push-down arc mould of loosing core, comprise spring members 1, arc core 2, push rod 3, axle core 4, limited block 5, guiding mold insert 6, draw buckle 7, push rod 8, pin base plate 9, mouth of a river thimble 10, it is characterized in that described spring members 1 is fixed in front mould, the arc core is ensconced in the arc guide groove of back mould, push rod 3 is positioned at the below of arc core 2, mouth of a river thimble 10 passes in guiding mold insert 6, limited block 5 is located at pin base plate 9 tops, and push rod 8 is arranged in base plate; During die sinking front mould bullet piece 12 spring 11 with draw under 7 the effect of buckle, make front mould bullet piece 12 and front and back mould be separated simultaneously.

The utility model is rational in infrastructure, reduces the cost, convenient and practical, reduces the maintenance cost of mould, has improved production efficiency.

Embodiment only is a preferred optimum implementation of the present utility model in sum; unintelligible is that protection domain of the present utility model is limited; for adjustment that does not exceed technical solutions of the utility model and the change that the technical work personnel of this area do according to the utility model, should think and drop in the protection domain of the present utility model.

Claims

1. push-down arc mould of loosing core, comprise spring members, arc core, push rod, axle core, limited block, guiding mold insert, draw buckle, push rod, pin base plate, mouth of a river thimble, it is characterized in that described spring members is fixed in front mould, the arc core is ensconced in the arc guide groove of back mould, push rod is positioned at the below of arc core, mouth of a river thimble passes in the guiding mold insert, and limited block is located at pin base plate top, and push rod is arranged in base plate; During die sinking front mould bullet piece spring with draw under the effect of buckleing, make front mould bullet piece and front and back mould be separated simultaneously.

2. a kind of push-down arc as claimed in claim 1 mould of loosing core, it is characterized in that described push rod is under the thrust of injection machine push rod, driving the guiding mold insert in the time of the impeller-hub core moves up together, arc core track realization arc along arc under the effect of the gathering sill on the mold insert is loosed core simultaneously

After the push rod of injection machine was return during matched moulds, front mould bullet piece withstood the arc core under the deduction effect, forced arc core, guiding mold insert and front mould bullet piece to withstand simultaneously and resetted.

3. a kind of push-down arc as claimed in claim 1 mould of loosing core is characterized in that described spring members is made of spring, bullet piece, spring compression bullet block reset during matched moulds.

4. a kind of push-down arc as claimed in claim 1 mould of loosing core is characterized in that the described arc structure of loosing core is one to go out four, and back mould is divided into four edges and pieces together, and is convenient to the processing in arc tunnel.