CN201913789U

CN201913789U - Extrusion die head for processing sectional material with plastic liner

Info

Publication number: CN201913789U
Application number: CN2010206392174U
Authority: CN
Inventors: 张家权; 张金银; 吴翠红; 徐小停; 钱成建; 孙晓峰
Original assignee: SANJIA SCIENCE AND TECHNOLOGY Co Ltd TONGLING
Current assignee: SANJIA SCIENCE AND TECHNOLOGY Co Ltd TONGLING
Priority date: 2010-12-02
Filing date: 2010-12-02
Publication date: 2011-08-03
Anticipated expiration: 2020-12-02

Abstract

The utility model relates to an extrusion die head for processing a sectional material with a plastic liner, which comprises a first transition board and a second transition board. A dowel part and a coextrusion main runner are arranged on the side wall of the first transition board, wherein the dowel part is arranged between a sub-runner corresponding to the broad wall part of the sectional material, and the coextrusion main runner leads to a central area matched with the liner of the sectional material; liner forming cavities are arranged in a mold core and an insert; a coextrusion branch runner which communicates the coextrusion main runner in the central area of the first transition board with the liner forming cavity in the mold core is arranged in the middle of the second transition board; and a coextrusion material split cone is arranged at the inlet end of the coextrusion branch runner. The extrusion die for processing the sectional material with the plastic liner adopts a coextrusion forming method, adopts cheap materials as liner materials, and can realize one-step forming through the coextrusion method, thereby avoiding subsequent assembly. Therefore, the extrusion die for processing the sectional material with the plastic liner not only is convenient to use, but also can save steel materials, and reduce the cost of products.

Description

Processing has the extrusion die of the section bar of plastic inner lining

Technical field

The utility model relates to the shaped device that a kind of needs are set up the plastic material of liner, and specifically a kind of processing has the extrusion die of the section bar of plastic inner lining.

Background technology

Usually, PVC door-window kind section bar can be at the inner steel lining that adds of section bar when assembling in order to improve resisting wind press capacity, improve the moment of inertia of section bar, this method is big to the demand of steel, and assembling the time needs special messenger's packing into and fixing steel lining one by one, and efficient is lower.People wish to replace steel by plastics for this reason, and can extrude simultaneously with the PVC base material, reduce the time of follow-up assembling and raise the efficiency.

Summary of the invention

The purpose of this utility model provides the extrusion die that a kind of processing has the section bar of plastic inner lining, can adopt cheap raw material to pass through the co-extrusion method one-shot forming as inner lining material, can save steel, reduces the price of product.

The utility model is achieved in that and comprises the machine neck, rebound, supporting plate, compressive plate, preformed board, profiled sheeting and inserting, be provided with sprue in the machine neck, rebound is provided with the runner that communicates with sprue, be provided with the branch flow cone that is protruding in the machine neck sprue in the middle of the rebound, be provided with core in the middle of the supporting plate, insert and be fixed on the core port of export, described rebound comprises first rebound and second rebound, branch flow cone in the sprue is located on first rebound, has the dowel place between the runner of section bar Kuan Bi position correspondence on the first rebound sidewall, the co-extrusion sprue that leads to the central area of section bar liner correspondence; Core and insert in have liner moulding die cavity, have the co-extrusion runner that the main co-extruding flow channel of the first rebound zone line is communicated with liner moulding die cavity in the core in the middle of second rebound, co-extrusion runner arrival end is provided with the co-extrusion material and divides flow cone.

This forming method is with respect to the surperficial co-extrusion of section bar, and maximum difficulty is the narrow and small problem in locus of runner.Section bar surface co-extrusion only needs die head is strengthened, or even coats co-extrusion entirely and can realize.And conventional door-window kind section bar length and width are no more than 100mm, will be in the inner co-extrusion that realizes of section bar, the interior also moulding of base material how the co-extrusion material enters sealing is a difficult point, and liner needs bigger rupture strength, must have certain thickness, the co-extrusion material requirement that therefore forms liner is more, requires the overflow section of co-extrusion sprue big, in order not influence flowing of base-material, the co-extrusion sprue must select the wideest zone of section bar to be provided with.Therefore the utility model is chosen in the co-extrusion sprue on first rebound and is provided with, and is entered in the middle of the rebound by the wide wall of section bar place, and co-extrusion sprue aperture can not be restricted, can be by the co-extrusion material of capacity.

Consider that the distribution of co-extrusion sprue can influence the base-material supply of the wide wall part of section bar, a preferred version of the present utility model is: first rebound holds the material pond in the overflow section increase formation of the dowel place both sides runner that the co-extrusion sprue passes through, and both sides are held the material pond and converge runner of formation in second rebound.

Though this side runner that is arranged so that the section bar correspondence of co-extrusion sprue shortens on width to some extent, can remedy the influence that the width deficiency is brought by the depth of section that increases this place.

As shown from the above technical solution, the utility model adopts the coextrusion mold method, passes through the co-extrusion method one-shot forming with cheap raw material as inner lining material, does not need follow-up assembling, and is not only easy to use, and can save steel, reduces the price of product.

Description of drawings

Fig. 1 is section material section figure.

Fig. 2 is the utility model extrusion die structural representation.

Fig. 3 analyses and observe along the A-A line for Fig. 2's.

Fig. 4 analyses and observe along the B-B line for Fig. 2's.

Fig. 5 analyses and observe along the C-C line for Fig. 2's.

The specific embodiment

Extrusion die such as Fig. 2 are to shown in Figure 5, comprise machine neck 8, first rebound 7, second rebound 6, supporting plate 5, compressive plate 4, preformed board 3, profiled sheeting 2 and insert 9 several, be provided with sprue 81 in the machine neck 8, divide flow cone 73 to fuse by the dowel 72 and first rebound 7, core 51 fuses by dowel and supporting plate 5, insert and 9 be fixed on the core 51 by screw, core 51 and inserting has section bar matrix 1 moulding die cavity 75 and liner moulding die cavity 62, the first rebounds 7 and second rebound 6 in 9 and is provided with the runner 74 that moulding die cavity 75 that synform becomes section bar matrix 1 is carried base-materials.Because the required materials flow of the utility model inner chamber co-extrusion part is more, its co-extruding flow channel overflow section is bigger, the requisite space position is bigger, realize in the following manner this locus, co-extrusion sprue 71 is set on the sidewall of first rebound 7, and co-extrusion sprue 71 leads to the central area 711 of section bar liner 11 correspondences by dowel 72 places of first rebound, 7 sidewalls between the runner 74 of the wide wall 12 position correspondences of section bar matrix; Have the co-extrusion runner 61 that the main co-extruding flow channel 71 of first rebound, 7 zone lines 711 and core 51 interior liner moulding die cavities 62 are communicated in the middle of second rebound 6, co-extrusion runner 61 arrival ends are provided with the co-extrusion material and divide flow cone 62.First rebound 7 increases to form at the overflow section of the dowel 72 place both sides runner that co-extrusion sprue 71 passes through and holds material pond 741, and both sides are held material pond 741 and converged in second rebound 6 and form a runner and lead to moulding die cavity 75 in the supporting plate 5 again.

Its operation principle is as follows: base-material enters in the die head through sprue 81, enter moulding die cavity 75 through the runner 74 in first rebound 7, second rebound 6, the co-extrusion material is entered the central area 711 of first rebound 7 by the co-extrusion sprue 71 on first rebound, 7 sidewalls, co-extrusion runner 61 in second rebound 6 enters the liner moulding die cavity 62 in the core 51 again, and muscle 13 is in the also extrusion molding of fusion in 9 of inserting in liner 11 parisons and base material 1 parison.

Claims

1. processing has the extrusion die of the section bar of plastic inner lining, comprise machine neck (8), rebound, supporting plate (5), compressive plate (4), preformed board (3), profiled sheeting (2) and insert (1), be provided with sprue (81) in the machine neck (8), rebound is provided with the runner (74) that communicates with sprue (81), be provided with the branch flow cone (73) that is protruding in the machine neck sprue in the middle of the rebound, be provided with core (51) in the middle of the supporting plate (5), insert (9) be fixed on core (51) port of export, it is characterized in that: described rebound comprises first rebound (7) and second rebound (6), branch flow cone (73) in the sprue (81) is located on first rebound (7), and the dowel (72) that has between the runner (74) of the wide wall of section bar (12) position correspondence on first rebound (7) sidewall is located, the co-extrusion sprue (71) that leads to the pairing central area of section bar liner (11); Have liner moulding die cavity (62) in core (51) and insert (9), have the co-extrusion runner (61) that the liner moulding die cavity (62) that the main co-extruding flow channel (71) of first rebound (7) zone line (711) and core (51) is interior communicates in the middle of second rebound (6), co-extrusion runner (61) arrival end is provided with the co-extrusion material and divides flow cone (62).

2. extrusion die according to claim 1, it is characterized in that: the dowel (72) that first rebound (7) passes through at co-extrusion sprue (71) is located the overflow section increase formation of both sides runner and is held material pond (741), and both sides are held material pond (741) and converge runner of formation in second rebound (6).