CN201761053U - Die orifice adjusting structure for multilayer co-extrusion composite film die head - Google Patents
Die orifice adjusting structure for multilayer co-extrusion composite film die head Download PDFInfo
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- CN201761053U CN201761053U CN2010205404403U CN201020540440U CN201761053U CN 201761053 U CN201761053 U CN 201761053U CN 2010205404403 U CN2010205404403 U CN 2010205404403U CN 201020540440 U CN201020540440 U CN 201020540440U CN 201761053 U CN201761053 U CN 201761053U
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- die
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- formwork
- mould circle
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Abstract
The utility model discloses a die orifice adjusting structure for a multilayer co-extrusion composite film die head, including a die core, a die ring and a die case; the die core is concentrically fixed in the die case; the die ring is a double layer annular structure and is sleeved on one end of the die case; more than two threaded through holes are uniformly arranged on an external layer cylindrical surface of the die ring; a pushing screw is arranged in the threaded through hole; the front end of the pushing screw pushes against the outer ring of the die case; the inner ring of the die ring and the die core form an annular gap at the die head outlet; more than two through holes are uniformly arranged on the external layer cylindrical surface of the die ring; through holes and threaded through holes are uniformly disposed at an interval; threaded blind holes are disposed on the cylindrical surface of the die case with respect to the through holes on the die ring; and tension screws pass through the through holes on the die ring and connect with threaded blind holes on the die case. The utility model utilizes the pushing screws and the tension screws for coordinate regulation so as to accurately and rapidly adjust the concentricity of the annular gap; and the size of the annular gap is reduced to 1.7cm so as to make the raw material fully plasticized, and improve product quality.
Description
Technical field
The utility model relates to a kind of mould structure of multilayer copolymerized compound membrane, relates in particular to a kind of die orifice adjustment structure of multilayer copolymerized compound membrane die head.
Background technology
Multi-layer co-extruded die head in the existing laminated film production line adopts the concentric-ring pattern structure mostly, different raw materials converges compound outlet to the multilayer co-extrusion die head (being die orifice) in multi-layer co-extruded die head preceding, flow out outlet again and carry out the inflation traction, so the annular gap in exit is the important parameter during laminated film is produced.The annular gap at existing die head exit place is generally about 2.5cm, the gap is bigger than normal causes the less by pressure of raw material in the die head, raw material plastifies complete inadequately in die head, thereby many slight graininess transparencies (being brilliant point) have been produced, cause the film cut because of crystalline substance point during the inflation tracting film, and make the transparent also relatively poor of film, influence the quality of product; And a kind of pushing tow screw adjusting of the concentricity adjustment of the annular gap at a die head exit place simple dependence, it regulates poor accuracy, adjusting efficient is low.
Summary of the invention
The utility model purpose provides a kind of concentricity of annular gap and regulates the die orifice adjustment structure of multilayer copolymerized compound membrane die head accurately and fast.
The utility model adopts following scheme to realize: the die orifice adjustment structure comprises core rod, mould circle (claiming adjustable ring again), formwork, described core rod is installed in the formwork with one heart, the mould circle is double-deck circulus, the mould snare is located at formwork one end, evenly be provided with two above tapped through holes on the outer face of cylinder of mould circle, be provided with the pushing tow screw in the tapped through hole, the front end of pushing tow screw withstands the outer ring of formwork, make the inner ring of mould circle and the annular gap that core rod forms the die head exit place, also evenly be provided with two above through holes on the outer face of cylinder of wherein said mould circle, through hole and tapped through hole evenly distribute at interval, the through hole of corresponding mould circle is provided with tapped blind hole on the face of cylinder of formwork, and the through hole that stretching screw passes the mould circle is connected on the tapped blind hole of formwork.
The inner ring of described die head exit place mould circle and the annular gap between the core rod are of a size of 1.7cm.
The beneficial effects of the utility model are: adopt said structure, the concentricity of utilizing pushing tow screw and stretching screw to cooperatively interact to regulate the annular gap at die head exit place, pushing tow screw and stretching screw during adjusting on even regulation formwork and the mould circle just can be adjusted the concentricity of annular gap accurately and fast; The annular gap size is contracted to 1.7cm, so as to increase raw material when die head flows plasticizing by pressure, raw material can be plastified more fully, reduce producing brilliant point, thereby improve the transparency of film, improved product quality.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is further elaborated:
Fig. 1 is the cross-sectional schematic of the utility model die orifice adjustment structure;
Fig. 2 is the cross-sectional schematic at the utility model Fig. 1 A-A place.
The specific embodiment
As Fig. 1 or shown in Figure 2, the utility model comprises core rod 1, mould circle 2, formwork 3, described core rod 1 is installed in the formwork 3 with one heart, mould circle 2 is double-deck circulus, mould circle 2 is set in formwork 3 one ends, evenly be provided with two above tapped through holes 22 on the outer face of cylinder 21 of mould circle 2, be provided with pushing tow screw 4 in the tapped through hole 22, the front end of pushing tow screw 4 withstands the outer ring 31 of formwork 3, make the inner ring 23 of mould circle 2 and the annular gap 5 that core rod 1 forms the die head exit place, also evenly be provided with two above through holes 24 on the outer face of cylinder 21 of wherein said mould circle 2, through hole 24 evenly distributes at interval with screwed hole 22, through hole 24 places of corresponding mould circle 2 are provided with tapped blind hole 32 on the face of cylinder of formwork 3, and the through hole 24 that stretching screw 6 passes mould circle 2 is connected on the tapped blind hole 32 of formwork 3.
The inner ring 23 of described die head exit place mould circle 2 and the annular gap 5 between the core rod 1 are of a size of 1.7cm.
The utility model structure especially is fit to the die orifice of three-layer co-extruded composite membrane die head and regulates.
Claims (2)
1. the die orifice adjustment structure of a multilayer copolymerized compound membrane die head, the die orifice adjustment structure comprises core rod, the mould circle, formwork, described core rod is installed in the formwork with one heart, the mould circle is double-deck circulus, the mould snare is located at formwork one end, evenly be provided with two above tapped through holes on the outer face of cylinder of mould circle, be provided with the pushing tow screw in the tapped through hole, the front end of pushing tow screw withstands the outer ring of formwork, make the inner ring of mould circle and the annular gap that core rod forms the die head exit place, it is characterized in that: also evenly be provided with two above through holes on the outer face of cylinder of described mould circle, through hole and tapped through hole evenly distribute at interval, the through hole of corresponding mould circle is provided with tapped blind hole on the face of cylinder of formwork, and the through hole that stretching screw passes the mould circle is connected on the tapped blind hole of formwork.
2. the die orifice adjustment structure of a kind of multilayer copolymerized compound membrane die head according to claim 1 is characterized in that: the inner ring of described die head exit place mould circle and the annular gap between the core rod are of a size of 1.7cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205404403U CN201761053U (en) | 2010-09-29 | 2010-09-29 | Die orifice adjusting structure for multilayer co-extrusion composite film die head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205404403U CN201761053U (en) | 2010-09-29 | 2010-09-29 | Die orifice adjusting structure for multilayer co-extrusion composite film die head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201761053U true CN201761053U (en) | 2011-03-16 |
Family
ID=43713658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205404403U Expired - Fee Related CN201761053U (en) | 2010-09-29 | 2010-09-29 | Die orifice adjusting structure for multilayer co-extrusion composite film die head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201761053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273640A (en) * | 2013-06-03 | 2013-09-04 | 上海山海包装容器有限公司 | Blowing machine die head device capable of controlling wall thickness at multiple points |
| CN106710739A (en) * | 2017-01-22 | 2017-05-24 | 山东聚辰电缆有限公司 | Equipment for co-extruding three layers of cables and automatically adjusting concentricity |
-
2010
- 2010-09-29 CN CN2010205404403U patent/CN201761053U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273640A (en) * | 2013-06-03 | 2013-09-04 | 上海山海包装容器有限公司 | Blowing machine die head device capable of controlling wall thickness at multiple points |
| CN106710739A (en) * | 2017-01-22 | 2017-05-24 | 山东聚辰电缆有限公司 | Equipment for co-extruding three layers of cables and automatically adjusting concentricity |
| CN106710739B (en) * | 2017-01-22 | 2018-06-29 | 山东聚辰电缆有限公司 | A kind of equipment of cable three-layer co-extruded adjust automatically concentricity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130929 |