CN203438525U

CN203438525U - Extrusion molding die head for PE (polyethylene) foam alloy boards

Info

Publication number: CN203438525U
Application number: CN201320486394.7U
Authority: CN
Inventors: 王存贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-09
Filing date: 2013-08-09
Publication date: 2014-02-19
Anticipated expiration: 2023-08-09

Abstract

The utility model belongs to the technical field of board extrusion molding dies, and relates to an extrusion molding die head for PE (polyethylene) foam alloy boards. The extrusion molding die head for PE foam alloy boards includes a left molding die block with a central runner, an intermediate molding die block with a central runner, and right molding die blocks with central runners, wherein the central runner of the left molding die block is shaped like a trumpet with a smaller inlet end and a larger outlet end; the central runner of the intermediate molding die block and the central runners of the right molding die blocks are runners with the width and the thickness identical to the width and the thickness of the outlet end of the central runner of the left molding die block respectively; a baffle is supported on the central runner of the intermediate molding die block; one end of the baffle extends into the central runner of the left molding die block; the other end of the baffle extends into the central runners of the right molding die blocks; the length of the baffle extending into the central runners of the right molding die blocks accounts for 40 to 70 percent of the total length of the right molding die blocks; cooling passages are formed in the right molding die blocks, and liquid inlet/outlet connectors of the cooling passages extend out of the right molding die blocks. The extrusion molding die head for PE foam alloy boards has the advantages of high production efficiency, low density and low manufacturing cost, as well as high surface hardness, and is applicable to extruders.

Description

PE foaming alloy plank extrusion molding die head

Technical field

The utility model belongs to sheet extrusion mould technical field, refers in particular to a kind of PE foaming alloy plank extrusion molding die head.

Background technology

At present, PE wood is moulded extrusion molding mould and is conventionally adopted cold top extrusion structure, by plastic extruder heating raw and be extruded in mold runner, at the mouth mould thicker cortex of cooling formation rapidly, then shape, its product density is up to 1.3-1.4, the speed per hour of producing sheet material is only 0.3 m/min, production efficiency is low, meter Chong great, and production cost is high.

Summary of the invention

The purpose of this utility model is to provide a kind of PE that density is low, cost is low foaming alloy plank extrusion molding die head of product of production.

The purpose of this utility model is achieved in that

PE foaming alloy plank extrusion molding die head, comprise the left side being fixedly connected sequentially that is provided with center flow channels, in, right forming module, the center flow channels of left forming module is flat horn-like, the entrance point that the osculum end of horn-like center flow channels is horn-like center flow channels, big opening end is the horn-like center flow channels port of export, in, the center flow channels of right forming module is the runner of the wide and uniform thickness of the horn-like center flow channels port of export with left forming module, center flow channels upper support at middle forming module has the deflector that is parallel to center flow channels, one end of deflector is stretched in the center flow channels of left forming module, the other end stretches in the center flow channels of right forming module, the outer surface of deflector not with a left side, the sidewall contact of the center flow channels of right forming module, the length that stretches into the deflector in the center flow channels of right forming module is 40-70% of right forming module total length, in right forming module, be provided with cooling duct, the liquid in-out joint of cooling duct stretches out outside right forming module.

Above-mentioned right forming module is comprised of seven modules, and described cooling duct and liquid in-out joint thereof are separately positioned in four modules on right forming module right side.

The length of the deflector in the above-mentioned center flow channels that stretches into right forming module is 55-65% of right forming module total length.

The front portion of the deflector in the above-mentioned center flow channels that stretches into left forming module is class triangular structure.

On four jiaos of the center flow channels of the right forming module of above-mentioned air deflector, be provided with reamer.

Above-mentioned deflector is solid slab.

The middle part of above-mentioned deflector is provided with the through hole that centre of compliance runner flows to, and the front opening of through hole is in the osculum end of the horn-like center flow channels of left forming module.

The surface of above-mentioned deflector is plane or waveform face.

The ratio of the thickness of above-mentioned left, center, right forming module is 2: 3: 1

The utility model compared to existing technology outstanding and useful technique effect is:

1, the utility model is owing to having increased deflector in the center flow channels at left, center, right forming module, the raw material of molten condition is extruded in the center flow channels of deflector surrounding, its extrusion pressure is little, flow velocity is fast, stressed even, the density of the product of producing only has 0.7-0.8, and extruded velocity reaches 1.2-1.5 ms/min.

2, the utility model increases cooling duct in right forming module, in cooling duct, pass into temperature lower than the thermostatical oil of plastics softening point, the outer surface that makes the sheet material extruded and temperature contact and form thin skin lower than the inner surface of the center flow channels of the right forming module of plastics softening point, it is follow-up continuous by shaping equipment cooling and shaping that sheet material goes out die head, improved the hardness of a product surface unhealthy obsession with cleanliness.

3, of the present utility model simple in structure, the density of the plate product of production is little, lightweight, saves material, and production efficiency is high, and production cost is low, is applicable to the extrusion molding die head that wood is moulded plate.

Accompanying drawing explanation

Fig. 1 is decomposing schematic representation of the present utility model.

Fig. 2 is the schematic perspective view of left forming module of the present utility model.

Fig. 3 is the schematic perspective view of middle forming module of the present utility model.

Fig. 4 is the schematic perspective view of one of aftershaping module of the present utility model.

Fig. 5 is the principle cutaway view that the utility model dissects with athwartship plane.

Fig. 6 is the principle cutaway view that the utility model dissects with vertical plane.

Fig. 7 is that the middle part of deflector is provided with the principle cutaway view that the utility model of through hole dissects with vertical plane.

The specific embodiment

Below in conjunction with accompanying drawing, with specific embodiment, the utility model is further described, referring to Fig. 1-Fig. 7:

PE foaming alloy plank extrusion molding die head, comprises and is provided with

center flow channels

11, 21, the left side being fixedly connected sequentially by bolt of 31, in, right forming

module

10, 20, 30, the center flow channels 11 of left forming module 10 is flat horn-like, the entrance point that the osculum end 111 of horn-like center flow channels 11 is horn-like center flow channels, big opening end 112 is the horn-like center flow channels port of export, in, right forming

module

20, 30

center flow channels

21, 31 be the wide and uniform thickness of horn-like center flow channels 11 ports of export 112 with left forming module 10 with identical or the bigger flat or oval runner 21 of sheet material appearance profile to be formed, 31, in the center flow channels 21 of middle forming module 20, by brace rod 22, be supported with and be parallel to

center flow channels

11, 21, 31 deflector 23, one end of deflector 23 is stretched in the center flow channels 11 of left forming module 10, the other end stretches in the center flow channels 31 of right forming module 30, the outer surface of deflector 23 not with a left side, right forming

module

10, 30

center flow channels

11, 31 sidewall contact, the length L 1 that stretches into the deflector 23 in the center flow channels 31 of right forming module 30 is right forming module 30 total length L 2 40-70%, the liquid in-out joint 32 that is provided with 33， cooling duct, cooling duct 33 in right forming module 30 stretches out outside right forming module 30.

Above-mentioned right forming module 30 is comprised of seven modules, and described cooling duct 33 and liquid in-out joint 32 thereof are separately positioned in four modules on right forming module 30 right sides, also can do suitable increase and decrease according to the level of processing mold technique.

The length L 1 of the deflector 23 in the above-mentioned center flow channels 31 that stretches into right forming module 30 is right forming module 30 total length L 2 55-65%, and the length of deflector 23 in right forming module is longer, and material circulation is more smooth.

The front portion of the deflector 23 in the above-mentioned center flow channels that stretches into left forming module 10 11 is class triangular structure 231, corresponding with the trumpet-shaped center flow channels 11 of left forming module 10.

On four jiaos of the center flow channels 31 of the right forming module 30 at above-mentioned deflector 23 places, be provided with reamer 311, be conducive to material and be full of whole

center flow channels

11,21,31.

Above-mentioned deflector 23 is solid slab.

The cross sectional shape that the middle part of above-mentioned deflector 23 is provided with the through hole 231(through hole that centre of compliance runner flows to can be flat or oval or other shape, this will determine according to the outer surface of the shape of the sheet material of moulding and deflector 23) make runner layering, pressure equalization, be conducive to the middle part circulation of material and the formation of outside epidermis, the front opening of through hole 231 is in the osculum end 111 of the horn-like center flow channels of left forming module 10.

The surface of above-mentioned deflector 23 is plane or waveform face, and described surface is that inner surface is or/and outer surface.

The ratio of the thickness of above-mentioned left, center, right forming

module

10,20,30 is 2: 3: 1

Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.

Claims

1.PE foaming alloy plank extrusion molding die head, it is characterized in that: comprise the left side being fixedly connected sequentially that is provided with center flow channels, in, right forming module, the center flow channels of left forming module is flat horn-like, the entrance point that the osculum end of horn-like center flow channels is horn-like center flow channels, big opening end is the horn-like center flow channels port of export, in, the center flow channels of right forming module is the runner of the wide and uniform thickness of the horn-like center flow channels port of export with left forming module, center flow channels upper support at middle forming module has the deflector that is parallel to center flow channels, one end of deflector is stretched in the center flow channels of left forming module, the other end stretches in the center flow channels of right forming module, the outer surface of deflector not with a left side, the sidewall contact of the center flow channels of right forming module, the length that stretches into the deflector in the center flow channels of right forming module is 40-70% of right forming module total length, in right forming module, be provided with cooling duct, the liquid in-out joint of cooling duct stretches out outside right forming module.

2. PE foaming alloy plank extrusion molding die head according to claim 1, is characterized in that: described right forming module is comprised of seven modules, and described cooling duct and liquid in-out joint thereof are separately positioned in four modules on right forming module right side.

3. PE according to claim 1 foaming alloy plank extrusion molding die head, is characterized in that: described in stretch into the deflector in the center flow channels of right forming module length be 55-65% of right forming module total length.

4. PE foaming alloy plank extrusion molding die head according to claim 1, is characterized in that: the front portion of the deflector in the described center flow channels that stretches into left forming module is class triangular structure.

5. PE foaming alloy plank extrusion molding die head according to claim 1, is characterized in that: on four jiaos of the center flow channels of the right forming module of described air deflector, be provided with reamer.

6. PE foaming alloy plank extrusion molding die head according to claim 1, is characterized in that: described deflector is solid slab.

7. PE foaming alloy plank extrusion molding die head according to claim 1, is characterized in that: the middle part of described deflector is provided with the through hole that centre of compliance runner flows to, and the front opening of through hole is in the osculum end of the horn-like center flow channels of left forming module.

8. PE foaming alloy plank extrusion molding die head according to claim 1, is characterized in that: the surface of described deflector is plane or waveform face.

9. according to the PE foaming alloy plank extrusion molding die head described in claim 1-8 any one, it is characterized in that: the ratio of the thickness of described left, center, right forming module is 2: 3: 1.