CN2491210Y

CN2491210Y - Plastic extruder able to clad different material

Info

Publication number: CN2491210Y
Application number: CN 01233001
Authority: CN
Inventors: 廖宪章
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-09
Filing date: 2001-08-09
Publication date: 2002-05-15
Anticipated expiration: 2011-08-09

Abstract

The utility model relates to a plastic extruder able to clad different material which comprises forming moulds. Wherein the forming moulds comprise a first forming mould, a second forming mould and a third forming mould, a first mould cavity, a second mould cavity and a third mould cavity are respectively arranged in the first forming mould, the second forming mould and the third forming mould; a forming mould sheet is arranged in the second forming mould cavity, the forming mould sheet is provided with a forming hole and a flow passage, a pass-through hole is arranged in the second forming mould cavity. During moulding, internal foaming material can be flown out from the forming hole, external non-foaming material is cladded on the external of the foaming material, and then double-deck products which are provided with different material in the internal and the external can be extruded.

Description

Can coat the plastics extruder of unlike material

Technical field

The utility model is a kind of plastics extruder that coats unlike material, mainly is can mold inside by mould to coat the not double-layer product of foam material for the foam material outside.

Background technology

Press, the use of foamed plastic extrusion molding machine is to have closely bound up with inseparable relation for us, the purpose of foamed plastic extrusion molding machine is for the foamed plastics after the heating being given as security in the mould, with the mould molding is finished product, for making curtain blade or blade of louver window or furniture material.

The general existing plastics extruder of traditional type, refer in particular to a kind of plastics extruder that can mold curtain blade or blade of louver window, because curtain blade or blade of louver window is to make with the foam material of plastics, but but this kind plastics extruder at most only extrusion molding list kind have the curtain blade or the blade of louver window of foam material, but, above-mentioned plastics extruder when reality is used, but have as after shortcoming, remain to be improved:

1. because of the only plastic product that goes out to have foam material of plastics extruder, foam material is softer, and its surface attaches impurity easily and causes the surface dirty, and easy generation wear problems is also arranged.

2. provide the foam material product because of the plastics extruder is only plastic, because of foam material is softer, the structural strength deficiency, the surface easily attaches impurity and causes the not problem of easy cleaning easily.

3. because of the only plastic product of providing foam material of plastics extruder, after foam material shines through long daylighting hyperthermia, can make the surface of foam material flavescence take place and be easy to crooked problem.

Summary of the invention

The purpose of this utility model is, a kind of plastics extruder that coats unlike material is provided, but its extrusion has the product of inside and outside layer unlike material.

A kind of plastics extruder that coats unlike material of the utility model, this plastics extruder comprises mould, this mould is with first, two, three moulds are formed, in first, two, three mould inside are respectively equipped with first, two, three die cavitys, in second die cavity, be set as the pattern sheet, this moulding matrix has moulding hole and runner, establish perforation on second mould, when moulding, inner foam material can be flowed out by place, moulding hole, can coat inner foam material with the not foam material of outside, in formation can extrusion has, the product of outer unlike material.

Wherein be respectively equipped with heating plate in first mould, the second mould outside.

Wherein the leading section in the extrusion screw rod is provided with a back die holder, and die holder before its front end is connected in the inner screw thread that forms of preceding die holder, is that above cramp fastens mutually with following cramp between back die holder and preceding die holder.

Wherein this second die cavity is to be taper, and this moulding matrix also is taper.

Wherein between the charging mould of perforation and top, be connected a connection tube is arranged, the charging mould is to form with the first charging mould, the second charging mould, have corresponding feed pipe in the first charging mould, the second charging mould inside, a feed pipe end is to be connected with connection tube.

Description of drawings

For making the auditor further understand architectural feature of the present utility model, below in conjunction with accompanying drawing describe in detail as after, wherein:

Fig. 1 is the stereo appearance figure of plastics extruder of the present utility model.

Fig. 2 be mould of the present utility model in conjunction with cutaway view.

Fig. 3 is the stereogram of back die holder of the present utility model, preceding die holder, last cramp, following cramp.

Fig. 4 is the stereo appearance figure of mould of the present utility model.

Fig. 5 is the three-dimensional exploded view of mould of the present utility model.

Fig. 6 be charging mould of the present utility model in conjunction with cutaway view.

To be that the utility model is plastic go out outsidely to coat the inner three-dimensional cutaway view of foam material that is for foam material Fig. 7.

The specific embodiment

See also Fig. 1, shown in Figure 2, the utility model is the plastics extruder that coats unlike material for a kind of, in comprising:

The internal layer foam material is gone into funnel 10, and the internal layer foam material is gone into funnel 10 can carry charging through the heater 11 and the extrusion of extrusion screw rod 12;

Skin not foam material is gone into funnel 20, can carry charging with the extrusion of extrusion screw rod 22 via heater 21.

As shown in Fig. 2, Fig. 3, die holder 30 after the leading section of extrusion screw rod 12 is provided with, die holder 31 before its front end is connected is formed with screw thread 32 in preceding die holder 31 inside, is that above cramp 40 fastens with following cramp 41 between back die holder 30 and the preceding die holder 31;

Screw togather a molding tool 50 (as Fig. 1 with screw thread 32 places of preceding die holder 31, Fig. 2, Fig. 4, shown in Fig. 5), this mould 50 is with first mould 51, second mould 52 and the 3rd mould 53 are formed, first mould 51, the outside of second mould 52 is respectively equipped with can be for the heating plate 500 of heating, in first mould 51, second mould 52 and the 3rd mould 53 inside have first die cavity 54 of lateral direction penetrating respectively, second die cavity 55, the 3rd die cavity 56, perforation 57 and second die cavity 55 connect mutually longitudinally to form one on second mould 52, second die cavity 55 is to be taper, in second die cavity 55, be provided with a moulding matrix 58 that is taper, but be formed with the runner 59 of feed flow shape plastic rubber material circulation in the surface of moulding matrix 58, this runner 59 can be circulated to the side and the place, bottom of moulding matrix 58 through both sides, also can the flow through top of moulding matrix 58 of runner 59, formation can all be coated on the aspect of moulding matrix 58 outsides, in the moulding matrix 58 inner flat moulding holes 581 that form a lateral direction penetrating;

As shown in Fig. 2, Fig. 6, between the charging mould 60 of perforation 57 and top, be connected a connection tube 65 is arranged, charging mould 60 is to constitute with the first charging mould 61, the second charging mould 62, have

corresponding feed pipe

63,64 in the first charging mould 61, the second charging mould, 62 inside, feed pipe 64 ends wherein are to be connected mutually with a connection tube 65.

When using after the combination of said structure (as shown in fig. 1), the internal layer foam material is gone into funnel 10, solid-state foam material can enter by going into funnel 10, and after heater 11 generation heat are melted, enter first die cavity 54, second die cavity 55 and the 3rd die cavity 56 of first mould 51, second mould 52, the 3rd mould 53 inside with 12 extrusions of extrusion screw rod, can can form the foam material 70 of inside as shown in Figure 7 through the flat moulding hole 581 of moulding matrix 58 inside in second die cavity, 55 inside;

Be coated on the not foam material 80 of foam material 70 outsides, as shown in fig. 1, be to go into funnel 20 by solid-state not foam material to enter, enter via suitable heating of

heater

21 and 22 extrusions of extrusion screw rod and to form heat in the charging mould 60 and melt, through the first charging mould 61, the feed pipe 63 of the second charging mould, 62 inside, enter connection tube 65 after 64 again, enter second die cavity 55 in second mould 52 behind the perforation 57, and can flow in runner 59 places of moulding matrix 58 outsides, also can be coated between the outside and second die cavity 55 of moulding matrix 58, through the 3rd die cavity 56 in the 3rd forming device 53 and after suitably cooling off, can form the inner as shown in Figure 7 foam material 70 that is, the outside coating is the structure of foam material 80 not, forms a kind ofly can be used as extrusion in having, the product of outer unlike material.

Therefore, via above explanation as can be known, the utility model with the configuration of the structure of excellence down, have at least as after advantage:

With the plastics extruder can the extrusion internal layer be foam material 70, outer is foam material 80 not, and it is foam material 70 for having internal layer that formation can be used as extrusion, and skin is that foam material 80 does not have the double-layer product of unlike material.

Claims

1. plastics extruder that can coat unlike material, comprise: the internal layer foam material is gone into funnel, the internal layer foam material is gone into funnel can be through heater and extrusion screw rod extrusion conveying, and skin not foam material is gone into funnel, can carry through heater and the extrusion of extrusion screw rod; It is characterized in that,

Front end in the extrusion screw rod of internal layer foam material is established a molding tool, and mould is to form with first mould, second mould and the 3rd mould;

Have first die cavity, second die cavity, the 3rd die cavity respectively in first mould, second mould and the 3rd mould inside, on second mould, form a perforation and the perforation of second die cavity, in second die cavity, be provided with a molding sheet, on the moulding matrix, form runner, in the inner moulding hole that forms of moulding matrix.

2. the plastics extruder that coats unlike material according to claim 1 is characterized in that, wherein is respectively equipped with heating plate in first mould, the second mould outside.

3. the plastics extruder that coats unlike material according to claim 1 and 2, it is characterized in that, wherein the leading section in the extrusion screw rod is provided with a back die holder, die holder before its front end is connected one, in the inner screw thread that forms of preceding die holder, be that above cramp fastens mutually with following cramp between back die holder and preceding die holder.

4. the plastics extruder that coats unlike material according to claim 3 is characterized in that wherein this second die cavity is to be taper, and this moulding matrix also is taper.

5. the plastics extruder that coats unlike material according to claim 4, it is characterized in that, wherein between the charging mould of perforation and top, be connected a connection tube is arranged, the charging mould is to form with the first charging mould, the second charging mould, have corresponding feed pipe in the first charging mould, the second charging mould inside, a feed pipe end is to be connected with connection tube.