CN2181385Y

CN2181385Y - Polyethylene pipe mould

Info

Publication number: CN2181385Y
Application number: CN93246471U
Authority: CN
Inventors: 季红珍
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-24
Filing date: 1993-12-24
Publication date: 1994-11-02
Anticipated expiration: 2003-12-24

Abstract

A polyethylene pipe material mould is a mould specially used for producing plastic pipe materials. The polyethylene pipe material mould is mainly composed of a machine head body, an air nozzle, a thermocouple socket, a diverter bracket, a bolt, a mouth mould, a locking ring, a mouth mould thermocouple socket, a heating device, a diameter-fixing sleeve, a sleeve barrel, an air nozzle, and a core mould, wherein, the mouth mould adopts one entire mouth mould, the mouth mould and the diverter bracket are together fixed in the same machine head body, and are tightly compressed by the locking ring. The mould adopting the structure is provided with excellent coaxial degree, and does not need to be repeatedly adjusted when the mould is used, and can ensure the quality of pipe materials, and additionally, the diameter-fixing sleeve is designed to be slightly larger than the inner diameter of the straightness part of the outlet position of the mouth mould.

Description

Polyethylene pipe mould

The utility model is a kind of metal die that is used to produce polyvinyl piping materials, belongs to the technical field that plastic pipe is made.

Therefore widely used polyethylene pipe timber die exists many defectives owing to structurally followed the structural approach of other mould of plastics in the process of using at present.As the axiality of: core and mouthful mould is that on the pattern tool excircle four or six screws position of adjusting mouthful mould is controlled, this traditional structure unusual difficulty when debugging, and precision also is difficult to guarantee.Secondly, a mouthful mould is fixed on the head by screw by pressure ring, fixes firmly in order to make it, often easily with the screw switch out, when pressing to such an extent that be easy to generate the slit again during tension, thereby the valve of mould is blocked, and making can not ordinary production.In addition, because the interior hole dimension of calibration sleeve is incorrect on the mould, the tubing of being produced tends to occur the ring phenomenon.

Goal of the invention of the present utility model just provides a kind of reliable in structure, debugs polyethylene pipe timber die convenient, that product does not have the ring phenomenon.

Polyethylene pipe timber die of the present utility model mainly comprises: handpiece body (1), valve (2), thermocouple socket (3), current divider support (4), screw (5), mouthful mould (6), clamp ring (7), mouthful mould thermocouple socket (8), heater (9), calibration sleeve (10), sleeve (11), water nozzle (12), core (13).On the structure of mouth mould (6), change and adopt two mouth moulds to be connected to form the traditional approach of a mouth die body in the past, adopt a whole mouthful mould (6), this mouthful mould (6) and current divider support (4) are fixed on the same handpiece body (1), are locked by clamp ring (7) then.The excircle of clamp ring (7) is provided with the external screw thread (7-1) that combines with handpiece body, and the rear portion of mouthful mould (6) is provided with a step (6-1), and this step is positioned at handpiece body, behind the clamp ring precession handpiece body, is pressed on this step (6-1).The axiality of mouthful mould and core is to be guaranteed by the hole of fixed shunt support (4) in the handpiece body and the hole of fixing port mould (6) like this, because these two holes are in same handpiece body, therefore can guarantee its axiality.Extrude pipe generation ring phenomenon in order to eliminate in addition, the diameter of the endoporus (10-1) of its calibration sleeve (10) is than bigger 0.1～2 millimeter of mouthful internal diameter of the front end exit place straight portion of mould (6).

Adopt its advantage of polyethylene pipe timber die of the present utility model to be, because mouthful mould adopts integrated design, (combining with two parts) and mouthful mould and current divider support are fixed on the same handpiece body in the past, therefore, can guarantee the axiality of mouthful mould and core, in use generally do not need debugging, at most just fine setting yet.And in the past when adopting traditional mould, a mouthful mould will often be adjusted, and can not guarantee its persistence.Secondly, a mouthful mould is fixed in the handpiece body with clamp ring (to be fixed with six screws) in the past, not only convenient and swift, reliable, and its coupling mechanism force is even, and a mouthful mould can not stuck up by pressure, was difficult for producing the slit on the contact-making surface between the part.So phenomenon that also can not cause plastics that air inlet is blocked, in addition, the characteristic property of the internal diameter design consideration vinyon of calibration sleeve, promptly volume has inflationary spiral after pressure disappears, design the internal diameter of calibration sleeve more bigger than mouthful internal diameter of mould exit straight portion, smooth to guarantee the tube surface that produces, and do not have the ring phenomenon to produce.

Fig. 1 is a structural representation of the present utility model.

Embodiment of the present utility model is as follows:

Handpiece body (1), valve (2), thermocouple socket (3), current divider support (4), clamp ring (5), sleeve (11) all adopt steel No. 45.It is the steel of " CrwMn " that mouth mould (6), core (13) and calibration sleeve (10) adopt model.Screw (5) adopts the screw of M12.Handpiece body (1) is as a whole, the one end is the external screw thread interface that joins with extruding machine, and the other end is the internal thread interface that joins with clamp ring, is fixed with core, mouthful mould in its centre bore, and compressed by clamp ring, and the mesopore of handpiece body, mouthful mould, core are same axle center.Calibration sleeve (10) is connected with a mouthful mould in the mode of spiral, the internal diameter that the internal diameter of its calibration sleeve slightly exports straight place than mouthful mould is that 32 millimeters plastic tube is an example with diameter more greatly, and the diameter of mouth mould straight portion is 32.2 millimeters, the internal diameter of calibration sleeve is 32.7 millimeters, 96 millimeters of Kong Changwei.Just can form polyethylene pipe timber die of the present utility model according to the above.

Claims

1, a kind ofly is used to make the polyethylene pipe timber die, form by handpiece body (1), valve (2), mouthful mould (6), core (13), water nozzle (12), sleeve institutes such as (11), it is characterized in that this mould adopts a whole mouthful mould (6), this mouthful mould (6) and current divider support (4) are fixed on the same handpiece body (1), are locked by clamp ring (7) then.

2, polyethylene pipe timber die according to claim 1, the excircle that it is characterized in that clamp ring (7) is provided with the external screw thread (7-1) that combines with handpiece body, the rear portion of mouth mould (6) is provided with a step (6-1), this step is positioned at handpiece body (1), and clamp ring (7) is pressed on this step (6-1).

3, polyethylene pipe timber die according to claim 1 and 2, it is characterized in that calibration sleeve (10) spiral is connected the front end of a mouthful mould (6), the diameter of the endoporus (10-1) of calibration sleeve (10) is than bigger 0.1～2 millimeter of mouthful internal diameter of the front end exit place straight portion of mould (6).