CN2863427Y

CN2863427Y - Novel plastic dirt guard die

Info

Publication number: CN2863427Y
Application number: CN 200520139657
Authority: CN
Inventors: 方振龙; 周勇
Original assignee: ANHUI NINGGUO ZHONGDING Co Ltd; Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Current assignee: ANHUI NINGGUO ZHONGDING Co Ltd; Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Priority date: 2005-12-09
Filing date: 2005-12-09
Publication date: 2007-01-31
Anticipated expiration: 2015-12-09

Abstract

The utility model relates to a noble plastic dirt guard mold which is mainly to solve the problem of demoulding and the limitation of sulfidization process for rubber products in the traditional structure. The upper part of the mold core is of pyramid formation out of which the matching block-type insulation mold core a and mold core b are arranged on the mounting plate, and the number of each is 3-6. A compression spring is provided on the down part of the mold core a and mold core b, and the mold core is carried by a supporting board. The mold core retaining plate and the movable backing plate are connected with the movable die carrier which fixes the mold core. A top bar is arranged at the end of the bed plate. Using the mechanical gearing, the mold core is made to move inside and the maximum diameter of the mold core is shortened, thereby the demoulding is convenient. The utility model is easy to demould. The plastic is instead of rubber. It is also of short production cycle, large quantity in the production unit time, the small batch product differentiation, the small production strength, and the low-cost of products.

Description

A kind of novel plastic dust cover mould

Technical field

The utility model relates to a kind of mould, is specifically related to a kind of plastics dust cover mould structure.

Background technology

The dust cover series products is used very extensive in industries such as automobile and household electrical appliances, and market demand is very big.The general rubber that adopts in the production, mould adopts half slide structure.Have following problem in the production: mould structure is complicated, and every mould die cavity number is restricted, rubber product sulfuration process restriction in addition, and the production cycle reaches tens minutes, and operating personnel's working strength is big, causes the unit cost of product high.And the dust cover product has up and down metallic framework, and structure is special, and during the core rod demoulding its core rod maximum gauge require must be fully less than the internal diameter of metallic framework, pressing traditional structure at all can't the demoulding.

Summary of the invention

Complicated in order to solve the dust cover class mould structure that exists in the above-mentioned prior art, traditional structure can't the demoulding and the problem of rubber product sulfuration process restriction, the utility model provides a kind of novel dust cover mould, and it adopts the core pieces structure, uses the plastics instead of rubber as the dust cover material.

The utility model is that the technical scheme that its purpose of realization is taked is: novel plastic dust cover mould comprises cover half fixed head, solid plate, core rod and sleiding form, Hough a and Hough b can be free to slide on sleiding form, it is characterized in that described core rod top is cone-shaped, be provided with piece formula core rod mold insert a and the core rod mold insert b that intermeshes and cooperate in the cone-shaped periphery of core rod, both quantity is the 3-6 piece respectively, is assemblied on the core rod mold insert fixed head; Core rod mold insert a, b bottom are provided with compression spring, and supporting plate is held the core rod mold insert; Core rod fixed head and dynamic model backing plate are connected on the dynamic model frame and with core rod to be fixed; Push rod is established in the below of supporting plate.

Described core rod mold insert a and core rod mold insert b and core rod adopt cone match, and fit angle is 5-15 °.

Blind hole is established in described core rod mold insert a, b bottom, and compression spring is located in the blind hole.

Described core rod fixed head is established U-lag, and the U-lag on core rod mold insert a and core rod mold insert b and the core rod fixed head is slidingly matched.

The utility model operation principle: this type of mold cavity adopts half slide structure, and automatic ejection device, core rod adopt sectional type mold insert structure, utilizes the inclined-plane of core rod mold insert to cooperate the axially-movable when making the demoulding to change radial motion into.

The beneficial effects of the utility model: the demoulding easily, with short production cycle with the plastics instead of rubber, yield in unit time is big, and each batch products difference is minimum, and production intensity is little, and product cost is low.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is whole sectional structure schematic diagram;

Fig. 2 is that the core rod mold insert cooperates schematic diagram with core rod fixed head U-lag;

Fig. 3 is Fig. 2 A-A cutaway view.

The specific embodiment

Referring to Fig. 1-3, the utility model adopts undercut side direction feeding structure.Cover half fixed head 1 is connected with solid plate 2 usefulness fastening bolts, and baroclinic block adopts whole Milling processing on the solid plate, and last lower skeleton alignment pin is directly inlayed with heat-resisting permanent magnet and fitted on solid plate 2 and the sleiding form 3, and the ferrous metal skeleton can fixedly positioning; Hough a9 and Hough b10 can be free to slide on sleiding form 3, adopt T type groove to cooperate therebetween; Each four of core rod mold insert a11 and core rod mold insert b12, adopting U-lag to interlock is assemblied on the core rod mold insert fixed head 4, every mold insert bottom is provided with compression spring 13, and supporting plate 6 is held the core rod mold insert, and sleiding form 3, core rod mold insert fixed head 4,6 three blocks of plates of supporting plate are linked together with fastening bolt; Core rod fixed head 7 is connected on the dynamic model frame with dynamic model backing plate 8 and with core rod 5 fixations.

The core rod demolding structure adopts the movable core rod of assembled.To cut into eight (cutting gaps when considering the line cutting, two integral mould cores are processed a set of model core rod mold insert) of sector structure after the core rod mold insert numerical control Vehicle Processing moulding with line.The staggered assembling of core rod mold insert a11 and core rod mold insert b12, and make its all with core rod mold insert fixed head 4 on U-lag be slidingly matched, every mold insert outside processing radial blind holes, spring 13 is compressed in installation in it.Each core rod mold insert and core rod 5 have between when matched moulds cone match closed fully.

After the working of plastics injection mo(u)lding was finished, the cover half part partially opened with dynamic model, and Angle Pin drive Hough a9 and Hough b10 are respectively to two lateral movements; After opening fully, the product dust cover is being fixed on the core rod assembly fully.Push rod 14 is with sleiding form 3, core rod mold insert fixed head 4, supporting plate 6 jack-up then.Axially-movable does not take place owing to be fixed on core rod fixed head 7 in core rod 5 at this moment, and core rod mold insert a11 and core rod mold insert b12 move upward with supporting plate 6.At this moment the part of the cone match between core rod 5 and core rod mold insert a11 and the core rod mold insert b12 just forms cavity.Hold power tightly by the pressure of compression spring and the contraction of product, at first core rod mold insert a11 slides in cavity along the mating surface with core rod mold insert b12, core rod mold insert b12 then moves inward again, thereby makes the reduced diameter of whole core rod, the internal diameter of skeleton in less than product.Product can take out from the core rod mold insert this moment smoothly.

Claims

1, a kind of novel plastic dust cover mould, comprise cover half fixed head (1), solid plate (2), core rod (5) and sleiding form (3), Hough a (9) and Hough b (10) can be free to slide on sleiding form (3), it is characterized in that described core rod (5) top is cone-shaped, be provided with piece formula core rod mold insert a (11) and the core rod mold insert b (12) that intermeshes and cooperate in the cone-shaped periphery of core rod (5), both quantity is the 3-6 piece respectively, is assemblied on the core rod mold insert fixed head (4); Core rod mold insert a, b bottom are provided with compression spring (13), and supporting plate (6) is held the core rod mold insert; Core rod fixed head (7) is connected on the dynamic model frame and with core rod (5) with dynamic model backing plate (8) and fixes; Push rod (14) is established in the below of supporting plate (6).

2, novel plastic dust cover mould according to claim 1 it is characterized in that described core rod mold insert a (11) and core rod mold insert b (12) and core rod (5) are cone match, and fit angle is 5 °-15 °.

3, novel plastic dust cover mould according to claim 1 is characterized in that described core rod mold insert a, b bottom establish blind hole, and compression spring (13) is located in the blind hole.

4, according to claim 1,2 or 3 described novel plastic dust cover moulds, it is characterized in that described core rod fixed head (4) establishes U-lag, core rod mold insert a (11) and core rod mold insert b (12) are slidingly matched with U-lag on the core rod fixed head (4).