CN2815660Y

CN2815660Y - Structure improvement of mould airvent for plastic universal wheel

Info

Publication number: CN2815660Y
Application number: CN 200520056582
Authority: CN
Inventors: 宋择民
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-07
Filing date: 2005-04-07
Publication date: 2006-09-13
Anticipated expiration: 2015-04-07

Abstract

The utility model discloses the improvement of a structure of a mould air exhausting opening for a plastic universal wheel, which is composed of a material returning thimble plate, a return spring, an air exhausting thimble plate, a rear die seat, a front die seat, a plastic inlet and an air exhaust opening which are positioned at the tops of front and rear die seats, etc. The utility model is characterized in that the opposite surface of a product mould plastic inlet is provided with a mould air exhausting system composed of a mobile air exhaust opening, an air exhausting thimble and a mould thimble hole, and the position which is near to the mobile air exhaust opening is also provided with a cone cavity composed of the air exhausting thimble and the mould thimble hole. The utility model uses the cone hollow cavity composed of the air exhausting thimble and the mould thimble hole to effectively solve the problems that in the forming process of a product, the connection of the product is poor, and the product has bubbles, figures, etc., because of exhaust and easy clogging. In the production, the mould air exhaust opening does not need to be cleaned, and production efficiency and the service life of the mould are enhanced. Because of good air exhausting effect, the inner structure of the produced product is tight, and intensity is high, so the service life of the product is also enhanced.

Description

The architecture advances of the die venting mouth of synthetic resin universal wheel

Technical field:

The utility model relates to the five metals manufacture field, especially a kind of architecture advances of die venting mouth of synthetic resin universal wheel.

Background technology:

Existing synthetic resin universal wheel in process of production, if die venting mouth super large, product will have burr to produce.If too little, the material pipe stirs the impurity that is produced with air and is easy to the exhaust outlet obstruction when the fusing plastic cement, thereby causes product that bad phenomenon such as bubble, decorative pattern are arranged because of exhaust is bad.Common solution is to unload mould down the cleaning exhaust outlet.So not only influence production efficiency and die life, cause product to engage again owing to exhaust is bad bad, and the product the inside is easy to generate bubble, cause plastic cement density not enough, product is broken easily at joint, and product test does not pass a test, and does not reach many deficiencies such as quality standard.

Summary of the invention:

The purpose of this utility model provides a kind of reasonable in design, make simple, can effectively solve synthetic resin universal wheel in process of production bubble, decorative pattern and engage deficiencies such as bad; Die life can be prolonged, the mould of the synthetic resin universal wheel of enhancing productivity.

The purpose of this utility model is to realize by following scheme, the mould of this synthetic resin universal wheel comprises: material returned ejector retainner plate, exhaust ejector retainner plate, return spring, back die holder, preceding die holder and be positioned at before and after the formations such as glue-feeder, exhaust outlet at die holder top, it is characterized in that: be provided with the die venting system that forms by movable exhaust outlet and exhaust thimble and mould centre hole on product mold glue-feeder opposite, and also be provided with the cone cavity of being formed by exhaust thimble and mould centre hole near this movable exhaust ports.

The architecture advances of the die venting mouth of above-mentioned synthetic resin universal wheel, there is movable exhaust outlet on the top of described exhaust thimble, the lower end that is positioned at movable exhaust outlet is provided with waste gas and the cold burden after the recyclable formed product, and makes cold burden form the cone cavity of cone scrap.

The architecture advances of the die venting mouth of above-mentioned synthetic resin universal wheel, described cone scrap is derived from the cone cavity automatically by the exhaust thimble.

Beneficial effect:

The cone cavity that the utility model utilizes exhaust thimble and mould centre hole to be formed efficiently solves product and easily stops up the product that is produced because of exhaust engage bad in forming process; Bubble is arranged; There is decorative pattern on the surface; Want frequent cleaning die; Influence the problems such as service life of production efficiency and mould.Because exhaust outlet of the present utility model is movable, does not need the exhaust outlet of cleaning die in the production, the service life of having improved production efficiency and mould greatly.Owing to its good exhaust effect, the product internal structure of producing is tight again, the intensity height, thus also improved greatly the service life of product.

Description of drawings:

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

Fig. 1 is the prior art structural representation:

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the N portion enlarged diagram of Fig. 2;

Fig. 4 is a structural representation of the present utility model;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is the M portion enlarged diagram of Fig. 5;

Fig. 7 is the S portion enlarged diagram of Fig. 4;

Fig. 8 is an exhaust thimble structure schematic diagram;

Fig. 9 is for having the schematic cross-section of centre hole on the die holder of back;

Figure 10 is the P portion enlarged diagram (the cone cavity connection diagram that exhaust thimble and mould centre hole are made up) of Fig. 4;

Figure 11 is a cone waste material knockout course schematic diagram;

Figure 12 is the cone waste material knockout course schematic diagram of Figure 11;

Figure 13 is the cone waste material knockout course schematic diagram of Figure 12.

The specific embodiment:

Extremely shown in Figure 13 as Fig. 4: the utility model is made up of glue-feeder 1, plastic cement products 2, exhaust outlet 3, cone cavity 4, scrap 5, exhaust thimble 6, material returned liftout 7, return spring 8, material returned ejector retainner plate 9, exhaust ejector retainner plate 10, mould centre hole 11, back die holder 12, preceding die holder 13.By the above-mentioned synthetic resin universal wheel die venting structure that constitutes, be applied to the movable exhaust structure of novel thimble of synthetic resin universal wheel production.The specific embodiment is, be provided with the die venting system that forms by movable exhaust outlet 3 and exhaust thimble 6 and mould centre hole 11 on product mold glue-feeder opposite, and also be provided with the cone cavity of being formed by exhaust thimble 6 and mould centre hole 11 4 near movable exhaust outlet 3 places, utilize the exhaust thimble and the mould centre hole of this band cone cavity, can solve the easy bad product that is produced that stops up of exhaust in the formed product process.

During production, behind preceding die holder 13 and preceding die holder 12 matched moulds, heat plastic cement by glue-feeder 1 stream as, die holder 12,13, exhaust outlet 3 directions flow forwards, backwards, form product 2, the waste gas of front end and cold burden inject cone cavity 4 by exhaust outlet 3 and finish the exhaust action, and form cone scrap 5 in cone cavity 4.During die sinking, material returned ejector retainner plate 9 ejects, material returned thimble 7 interlocks eject plastic cement products 2, and exhaust this moment thimble 6 is not moving, thereby plastic cement products 2 ruptures at exhaust outlet 3 places with cone body scrap 5, material returned top board 9 continues to promote exhaust ejector retainner plate 10 forward then, and exhaust thimble 6 interlocks promote cone scrap 5 forward, makes the conical surface of cone scrap 5 be compressed disengaging back die holder 12.When material returned ejector retainner plate 9 returns, because the effect of return spring 8, exhaust ejector retainner plate 10 returns, exhaust thimble 6 interlocks return, the cone scrap 5 compressed parts increase of having expanded this moment, and together with the back die holder 12 collide, back die holder 12 pulls out cone scrap 5 fall from the cone cavity 4 of exhaust thimble 6 automatically, thereby finishes a whole set of production process.

Claims

1, a kind of architecture advances of die venting mouth of synthetic resin universal wheel, comprise: material returned ejector retainner plate (7), return spring (8), exhaust ejector retainner plate (10), back die holder (12), preceding die holder (13) and the glue-feeder (1) that is positioned at die holder top, front and back, exhaust outlet (3) constitutes, it is characterized in that: be provided with the die venting system that forms by movable exhaust outlet (3) and exhaust thimble (6) and mould centre hole (11) on product mold glue-feeder (1) opposite, and locating also to be provided with the cone cavity of being formed by exhaust thimble (6) and mould centre hole (11) near this movable exhaust outlet (3).

2, the architecture advances of the die venting mouth of synthetic resin universal wheel according to claim 1, it is characterized in that: the top of described exhaust thimble (6) is provided with movable exhaust outlet (3), the lower end that is positioned at movable exhaust outlet (3) is provided with waste gas and the cold burden after the recyclable formed product, and makes cold burden form the cone cavity (4) of cone scrap (5).

3, the architecture advances of the die venting mouth of synthetic resin universal wheel according to claim 1 is characterized in that: described cone scrap (5) is derived from cone cavity (4) automatically by exhaust thimble (6).