CN102079127A - Method for forming section with plastic lining and extrusion die head thereof - Google Patents
Method for forming section with plastic lining and extrusion die head thereof Download PDFInfo
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- CN102079127A CN102079127A CN2010105715394A CN201010571539A CN102079127A CN 102079127 A CN102079127 A CN 102079127A CN 2010105715394 A CN2010105715394 A CN 2010105715394A CN 201010571539 A CN201010571539 A CN 201010571539A CN 102079127 A CN102079127 A CN 102079127A
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Abstract
The invention relates to a method for forming a section with a plastic lining and an extrusion die head thereof. The method comprises the following steps of: introducing a co-extrusion material for the lining into an area corresponding to the section lining in the middle of a transition plate from one side of the transition plate of the die head; and extruding the co-extrusion material and a base material in the same direction, and fusing the co-extrusion material with the base material in a cavity at an outlet of the die head so as to obtain the section with the plastic lining. A low-cost lining material is formed at one time by a co-extrusion forming method, subsequent assembly is not needed, the section is convenient to use, steel can be saved, and the price of a product is reduced.
Description
Technical field
The present invention relates to a kind of needs and set up the forming method and the device thereof of the plastic material of liner.
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 invention is to provide a kind of product moulding method and extrusion die thereof, can adopt cheap raw material to pass through the co-extrusion method one-shot forming, can save steel, reduce the price of product as inner lining material with plastic inner lining.
Method of the present invention is achieved in that introduces rebound middle section bar liner institute corresponding region with the co-extrusion material by rebound one side of die head with liner, extrude in the same way with base-material again and the fusion of the base-material in die head exit place and die cavity, thereby acquisition has the section bar of plastic inner lining.
The present invention realizes the extrusion die of said method, comprise 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 present invention 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 invention 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 present invention 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 an extrusion die structural representation of the present invention.
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 inner chamber co-extrusion part of the present invention 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 (3)
1. the product moulding method that has plastic inner lining, it is characterized in that: liner is introduced the middle section bar liner institute corresponding region of rebound with the co-extrusion material by rebound one side of die head, extrude in the same way with base-material again and the fusion of the base-material in die head exit place and die cavity, thereby acquisition has the section bar of plastic inner lining.
2. extrusion die of realizing the described forming method of claim 1, 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).
3. extrusion die according to claim 2, 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105715394A CN102079127A (en) | 2010-12-02 | 2010-12-02 | Method for forming section with plastic lining and extrusion die head thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105715394A CN102079127A (en) | 2010-12-02 | 2010-12-02 | Method for forming section with plastic lining and extrusion die head thereof |
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| Publication Number | Publication Date |
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| CN102079127A true CN102079127A (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105715394A Pending CN102079127A (en) | 2010-12-02 | 2010-12-02 | Method for forming section with plastic lining and extrusion die head thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689431A (en) * | 2012-06-19 | 2012-09-26 | 淮海工学院 | Coextrusion mould of soft and hard plastic profiled bars |
| CN103147664A (en) * | 2013-01-31 | 2013-06-12 | 铜陵格瑞特挤出技术有限公司 | Steel liner-free plastic profile and internal co-extrusion mould head thereof |
| CN105014906A (en) * | 2015-07-29 | 2015-11-04 | 大连三奥挤出模具开发有限公司 | Molding method of section |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676594A (en) * | 2008-09-19 | 2010-03-24 | 铜陵三佳科技股份有限公司 | Double-material profile, molding method thereof and dedicated co-extrusion die head |
| CN201913789U (en) * | 2010-12-02 | 2011-08-03 | 铜陵三佳科技股份有限公司 | Extrusion die head for processing sectional material with plastic liner |
-
2010
- 2010-12-02 CN CN2010105715394A patent/CN102079127A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676594A (en) * | 2008-09-19 | 2010-03-24 | 铜陵三佳科技股份有限公司 | Double-material profile, molding method thereof and dedicated co-extrusion die head |
| CN201913789U (en) * | 2010-12-02 | 2011-08-03 | 铜陵三佳科技股份有限公司 | Extrusion die head for processing sectional material with plastic liner |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689431A (en) * | 2012-06-19 | 2012-09-26 | 淮海工学院 | Coextrusion mould of soft and hard plastic profiled bars |
| CN102689431B (en) * | 2012-06-19 | 2015-05-20 | 淮海工学院 | Coextrusion mould of soft and hard plastic profiled bars |
| CN103147664A (en) * | 2013-01-31 | 2013-06-12 | 铜陵格瑞特挤出技术有限公司 | Steel liner-free plastic profile and internal co-extrusion mould head thereof |
| CN103147664B (en) * | 2013-01-31 | 2015-04-08 | 大连实德科技发展有限公司 | Steel liner-free plastic profile and internal co-extrusion mould head thereof |
| CN105014906A (en) * | 2015-07-29 | 2015-11-04 | 大连三奥挤出模具开发有限公司 | Molding method of section |
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Application publication date: 20110601 |