CN203543069U - Clothes rack type narrow slit die head - Google Patents
Clothes rack type narrow slit die head Download PDFInfo
- Publication number
- CN203543069U CN203543069U CN201320642252.5U CN201320642252U CN203543069U CN 203543069 U CN203543069 U CN 203543069U CN 201320642252 U CN201320642252 U CN 201320642252U CN 203543069 U CN203543069 U CN 203543069U
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- China
- Prior art keywords
- die body
- upper die
- runner
- clothes rack
- rack type
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a clothes rack type narrow slit die head which comprises an upper die body and a lower die body, wherein the lower surface of the upper die body and the upper surface of the lower die body are respectively provided with a groove and a semicircular hole connected with the groove; after the upper die body and the lower die body are combined through a die assembly, the two semicircular holes form a feed inlet, and the two grooves form a clothes rack type runner; a gap is formed between the combining surfaces of the upper die body and the lower die body at the lower part of the clothes rack type runner, and the gap forms a die lip; the upper die body is provided with an adjusting row, and the adjusting row is fixed on the upper die body through an adjusting nut; a damping fin is arranged in the clothes rack type runner, connected to the upper die body, and in the shape of an isosceles triangle, and an angle of flare of the damping fin is large. The clothes rack type narrow slit die head has a good radiation distribution effect, so that the overall length of the die head can be shortened, the pressure loss of melts in the runner is reduced, and the residence time of melts flowing through the runner is short, therefore, the forming of plastics with poor thermal stability is facilitated, so products are uniform in thickness and reliable in quality.
Description
Technical field
The utility model relates to a kind of rack-style narrow slit die head.
Background technology
Material from extruder during work flows to into die cavity, through die cavity runner, distributes, and by circle, is transited into along the uniform flat material of die orifice width and is flowed, and after die orifice current stabilization, by die orifice, is extruded, and forms flat material base.But in actual production process, when melt pushes in die head, melt is evacuated to the both sides in material dispersion district through material runner, but because the stroke of evacuating to both sides is longer, intermediate material is piled up when more, causes die orifice discharge thickness uneven, has greatly affected the quality of production.
Utility model content
The shortcoming existing in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of discharging rack-style narrow slit even, easy to adjust to get to know.
For achieving the above object, the technical solution of the utility model is: a kind of rack-style narrow slit die head, comprise upper die body and lower mold body, the lower surface of described upper die body is respectively equipped with groove and the semicircle orifice being connected with groove with the upper surface of lower mold body, after upper die body and lower mold body combine by matched moulds, two semicircle orifices form a charging aperture, two grooves form a rack-style runner, between the upper die body of rack-style runner bottom and the faying face of lower mold body, there is gap, this gap forms a die lip, described upper die body is provided with the row of adjusting, the row of adjusting is fixed on upper die body by adjusting nut, in described rack-style runner, be provided with damping fin, described damping fin is connected on upper die body, damping fin is isosceles triangle shape.
Described upper die body and the both sides of lower mold body are provided with electric hot plate.
The beneficial effects of the utility model are: rack-style runner is isosceles triangle shape, its angle of flare is larger, have good radiation distributional effects, can make die head entire length shorten, the pressure loss of melt in runner reduces, melt-flow is short through time of staying wherein, the plastics forming that is conducive to poor heat stability, upper die body is provided with the row of adjusting in addition, and the row of adjusting is fixed on upper die body by adjusting nut, can control to adjust row by adjusting adjusting nut, thereby control die lip distance; Damping fin has improved melt and has evacuated uneven problem, make product thickness evenly, reliable in quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the structural representation of rack-style runner of the present utility model.
Wherein: lower mold body 1, upper die body 2, the row of adjusting 21, adjusting nut 22, electric hot plate 3, rack-style runner 4, die lip 5, charging aperture 6, damping fin 7.
The specific embodiment
Below in conjunction with accompanying drawing, and, the utility model is described further in conjunction with the embodiments.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of rack-style narrow slit of the utility model die head, comprise upper die body 2 and lower mold body 1, the lower surface of described upper die body 2 is respectively equipped with groove and the semicircle orifice being connected with groove with the upper surface of lower mold body 1, after upper die body 2 and lower mold body 1 combine by matched moulds, two semicircle orifices form a charging aperture 6, two grooves form a rack-style runner 4, between the upper die body 2 of rack-style runner 4 bottoms and the faying face of lower mold body 1, there is gap, this gap forms a die lip 5, described upper die body 2 is provided with the row of adjusting 21, the row of adjusting 21 is fixed on upper die body 2 by adjusting nut 22, in described rack-style runner 4, be provided with damping fin 7, described damping fin 7 is connected on upper die body 2, damping fin 7 is isosceles triangle shape.Described upper die body 2 and the both sides of lower mold body 1 are provided with electric hot plate 3.
Rack-style runner 4 is isosceles triangle shape, its angle of flare is larger, have good radiation distributional effects, can make die head entire length shorten, the pressure loss of melt in runner reduces, melt-flow is short through time of staying wherein, the plastics forming that is conducive to poor heat stability, upper die body 2 is provided with the row of adjusting 21 in addition, and the row of adjusting 21 is fixed on upper die body 2 by adjusting nut 22, can be by regulating adjusting nut 22 rows of control and regulation, thus die lip 5 distances controlled; Damping fin 7 has improved melt and has evacuated uneven problem, make product thickness evenly, reliable in quality.
Claims (2)
1. a rack-style narrow slit die head, comprise upper die body (2) and lower mold body (1), the upper surface of the lower surface of described upper die body (2) and lower mold body (1) is respectively equipped with groove and the semicircle orifice being connected with groove, after upper die body (2) and lower mold body (1) combine by matched moulds, two semicircle orifices form a charging aperture (6), two grooves form a rack-style runner (4), it is characterized in that: between the upper die body (2) of rack-style runner (4) bottom and the faying face of lower mold body (1), there is gap, this gap forms a die lip (5), described upper die body (2) is provided with the row of adjusting (21), the row of adjusting (21) is fixed on upper die body (2) by adjusting nut (22), in described rack-style runner (4), be provided with damping fin (7), described damping fin (7) is connected on upper die body (2), damping fin (7) is isosceles triangle shape.
2. a kind of rack-style narrow slit according to claim 1 is got to know, and it is characterized in that: the both sides of described upper die body (2) and lower mold body (1) are provided with electric hot plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642252.5U CN203543069U (en) | 2013-10-17 | 2013-10-17 | Clothes rack type narrow slit die head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642252.5U CN203543069U (en) | 2013-10-17 | 2013-10-17 | Clothes rack type narrow slit die head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203543069U true CN203543069U (en) | 2014-04-16 |
Family
ID=50461235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320642252.5U Expired - Fee Related CN203543069U (en) | 2013-10-17 | 2013-10-17 | Clothes rack type narrow slit die head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203543069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972251A (en) * | 2017-12-05 | 2018-05-01 | 浙江精诚模具机械有限公司 | A kind of branch pipe type runner design of angle change |
| CN114750385A (en) * | 2021-01-08 | 2022-07-15 | 日本碍子株式会社 | Die head for extrusion molding and extrusion molding machine |
-
2013
- 2013-10-17 CN CN201320642252.5U patent/CN203543069U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972251A (en) * | 2017-12-05 | 2018-05-01 | 浙江精诚模具机械有限公司 | A kind of branch pipe type runner design of angle change |
| CN114750385A (en) * | 2021-01-08 | 2022-07-15 | 日本碍子株式会社 | Die head for extrusion molding and extrusion molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20171017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |