CN2439944Y

CN2439944Y - Extruding mould for plastic tube

Info

Publication number: CN2439944Y
Application number: CN00245757U
Authority: CN
Inventors: 蔡子良
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-08
Filing date: 2000-08-08
Publication date: 2001-07-25
Anticipated expiration: 2010-08-08

Abstract

The utility model relates to an extruding mould for plastic tubes, which is provided with an inner die holder and an outer die holder. A connecting blade is formed between the inner die holder and the outer die holder. The utility model is characterized in that the connecting blade is provide with fork-shaped blades with proper lengths, wherein, an upper blade of the fork-shaped blades is connected with the inner wall of the outer die holder, and the lower blades of the fork-shaped blades are connected with the inner wall of inner die holder. So when a trough of the extruding mould for plastic tubes is extruded from inside to outside, the terminal fork-shaped blades make the joint of plastic tube walls present a non-linear shape making use of the connecting blade. The utility model can prevent a plastic tube from breaking form the joint.

Description

The plastic cement mould of keeping in custody out

The utility model relates to a kind of plastic cement mould of keeping in custody out.

Present plastic cement is kept in custody out in mould all includes, outer mould base A, B (as shown in Figure 1), wherein, outer mould base A, be to be provided with hopper C between B, be beneficial to plastic material in the hopper D1 of extruder mouth feed feed chute C, and utilize extruder that hopper is produced moulding pressure again, can advance (as shown in Figure 4) along hopper after making raw material by heat fusing, so be in prison in the mould, and in the order, outer mould base A, B keeps certain spacing and the interior die holder A of order to be positioned, interior, be provided with between outer mould base and link blade A1, A2, wherein link blade A2 as shown in Figure 1 in the form of sheets, so, separates the raw material in the hopper when being the shunting shape after this links blade A2, raw material can be joined again after waiting to flow through binding blade A2, and form plastic cement pipe (as shown in Figure 2) from the A3 extrusion of extrusion mouth, again because raw material is mobile in hopper, in after through the binding blade, in fact the plastic cement pipe is molded, and the temperature of its mould end also reduces gradually, and the purpose that temperature reduces is to make the plastic cement pipe according to the reservation shape moulding.So in fact can join again after with the raw material shunting at the tube wall F1 of plastic cement pipe F, and be formed with joint F2 because of linking blade, joint F2 quantity the more, the quantity that representative links blade A2 is the more.

The joint F2 that so is a straight line, its disadvantage is for being plastic cement tube wall F1 difference significantly, and when the plastic cement pipe when using than cold district, because plastic material is under the low temperature condition that heals, its toughness is poorer, plastic cement Guan Yi is come from joint F2 fracture, even the fracture situation promptly take place when dropping ground in the plastic cement pipe of moulding just.

The purpose of this utility model is to overcome the prior art deficiency, provides a kind of plastic cement pipe that prevents from the plastic cement of the joint of the tube wall fracture mould of keeping in custody out.

For this reason, the utility model provides a kind of plastic cement mould of keeping in custody out, comprises inside and outside die holder, and be provided with hopper between inside and outside die holder, is provided with the binding blade between described inside and outside die holder, and this links blade by the vertical blade and the forked blade of raw material shunting being formed.

In the utility model, described vertical blade is connected with interior outer mould base.

In the utility model, described forked blade is divided into upper and lower blade, and the inwall of described blade and outer mould base is connected with, and the inwall of described lower blade and interior die holder is connected with.

In the utility model, described forked blade is and expands outwardly shape.

Advantage of the present utility model and effect are:

1, is provided with the binding blade at keep in custody the out inside and outside die holder of mould of plastic cement.

2, above-mentioned again binding blade has the forked blade of suitable length, and its tube wall joint of plastic cement pipe that has after the moulding of making is a non-linear shape, and has the not effect of easy fracture.

The part cutaway view of the existing extrusion mould of Fig. 1.

The plastic cement pipe that the existing extrusion mould of Fig. 2 is made.

The view of Fig. 3 extruder.

The part cutaway view of Fig. 4 extrusion mould.

The part cutaway view of Fig. 5 the utility model extrusion mould.

The plastic cement pipe that Fig. 6 the utility model extrusion mould is made.

Fig. 7 the utility model extrusion mould links the perspective view of blade.

Now in conjunction with the accompanying drawings the utility model is described in detail as follows:

As shown in Figure 5, extrusion mould 1 of the present utility model includes inside and outside die

holder

10,11, and be provided with hopper 12 10,11 of inside and outside die holders, this hopper 12 can be plastic material and flows within it, and be subjected to the moulding pressure of extruder D, and the combination that makes plastic material in hopper, produce higher density, and between inside and outside die holder, be provided with binding blade 2.

The binding blade of Fig. 5 and 7 have vertical blade 20 and vertical blade after then have forked

blade

21,22 form, wherein vertical blade 20 with in, the inwall of outer mould base is connected with, and forked

blade

21,22 blade 21 is connected with the inwall of outer mould base, 22 inwalls with interior die holder of lower blade are connected with, so the front end 200 of running into vertical blade 20 when raw material can be shunted, but to forked

blade

21,22 its forked blades are and expand outwardly shape, raw material to the forked blade of shunting to front end 200 can't be compiled, make extrusion mould of the present utility model can make the tube wall 30 formed joints 31 of plastic cement pipe 3 be a non-linear shape, and prevent the improper fracture of plastic cement pipe, guarantee the quality of plastic cement pipe.

Claims

1, a kind of plastic cement mould of keeping in custody out comprises inside and outside die holder, and be provided with hopper between inside and outside die holder, it is characterized in that: be provided with the binding blade between described inside and outside die holder, this links blade by the vertical blade and the forked blade of raw material shunting being formed.

2, a kind of plastic cement as claimed in claim 1 mould of keeping in custody out, it is characterized in that: described vertical blade is connected with interior outer mould base.

3, a kind of plastic cement as claimed in claim 1 or 2 mould of keeping in custody out, it is characterized in that: described forked blade is divided into upper and lower blade, and the inwall of described blade and outer mould base is connected with, and the inwall of described lower blade and interior die holder is connected with.

4, a kind of plastic cement as claimed in claim 3 mould of keeping in custody out is characterized in that: described forked blade is and expands outwardly shape.