CN202572943U - Five-layer spiral pipe co-extruding nose - Google Patents
Five-layer spiral pipe co-extruding nose Download PDFInfo
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- CN202572943U CN202572943U CN2012201292785U CN201220129278U CN202572943U CN 202572943 U CN202572943 U CN 202572943U CN 2012201292785 U CN2012201292785 U CN 2012201292785U CN 201220129278 U CN201220129278 U CN 201220129278U CN 202572943 U CN202572943 U CN 202572943U
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Abstract
The utility model relates to a five-layer spiral pipe co-extruding nose which is connected with extruding machines corresponding to different pipe layers. The five-layer spiral pipe co-extruding nose comprises a joint assembly, a mold body assembly, a spiral body assembly and a mould cavity, wherein the spiral body assembly is arranged in the mould cavity, the input end of the joint assembly is connected with the extruding machines corresponding to different pipe layers, and the output end of the joint assembly is connected with the corresponding spiral body assembly through the mold body assembly. Compared with the prior art, the five-layer spiral pipe co-extruding nose has the advantages of reasonable and reliable structure, long service life, low manufacture cost, wide applicable range, convenience in disassembly and maintenance, and the like.
Description
Technical field
The utility model relates to a kind of multi-layer tubes co-extruding machine head, especially relates to a kind of five helical layer formula pipe co-extrusion heads.
Background technology
Multi-layer co-extruded in recent years complex technique is developed on a large scale very much, domestic two-layer, three-layer co-extruded NEW TYPE OF COMPOSITE tubing, this novel multi-layer co-extruded tubing of having occurred; Be composited by multiple rerum natura material; The tubing of producing has multiple different qualities, and what have both has a corrosion resistance, has impact resistance again; What have has a wearability, has fire retardant, antistatic again.But domestic also do not have to produce the composite pipe that has more characteristics more than three layers.Some complex working condition need have than characteristics such as high abrasion, corrosion-resistant, shock resistance, anti-aging, antistatics with pipe.Existing three-layer co-extruded technology can not satisfy the operating mode of this harshness, and there is complex structure in old-fashioned in addition head, the build heavy, and flow passage structure designs many shortcomings such as unreasonable.
The utility model content
The purpose of the utility model is exactly that a kind of reliable, long service life rational in infrastructure, low cost of manufacture, applied widely, five helical layer formula pipe co-extrusion heads that dismounting is easy to maintenance are provided in order to overcome the defective that above-mentioned prior art exists.
The purpose of the utility model can realize through following technical scheme:
A kind of five helical layer formula pipe co-extrusion heads; This head connects with the extruder of corresponding different pipe layers; It is characterized in that described head comprises adapter assembly, die body assembly, conveyor screw assembly and die cavity, described conveyor screw assembly is located in the die cavity; Described adapter assembly input links to each other with the extruder of corresponding different pipe layers, and output connects with corresponding conveyor screw assembly through the die body assembly;
Material is heated to that the opening through the adapter assembly input gets into the die body assembly after the glutinous stream mode; Through die body assembly and corresponding conveyor screw assembly aftershaping; Become the layering pipe with ring section shape, bonding forms uniform five layers of tubing in delivery channel then.
Described five helical layer formula tubing comprise intensity layer, adhesive exterior, barrier layer, adhesive internal layer and antistatic layer; Described adapter assembly comprises first joint, second joint, the 3rd joint and connection adapter; The input of described first joint is connected with barrier layer feed main frame; The input of described second joint is connected with antistatic layer feed main frame; The input of described the 3rd joint is connected with the inside and outside layer of adhesive feed main frame, and the input of described connection adapter is connected with intensity layer feed main frame.
Described die body assembly comprises first die body, second die body, the 3rd die body and the 4th die body, and this first die body, second die body, the 3rd die body and the 4th die body are connected the back successively and form the die body assembly with five laminar flow roads.
Described conveyor screw assembly comprises first conveyor screw, second conveyor screw, triple helical body, the 4th conveyor screw and the 5th conveyor screw; Described first conveyor screw is connected with second joint through the die body assembly; Described second conveyor screw is connected with the 3rd joint through the die body assembly; Described triple helical body is connected with first joint through the die body assembly, and described the 4th conveyor screw is connected with the 3rd joint through the die body assembly, and described the 5th conveyor screw is connected with connection adapter through the die body assembly.
Be equipped with heater on the outer wall of described die cavity, die body assembly, adapter assembly.
This head adopts detachable structure.
Compared with prior art, the utlity model has following advantage:
1, rational in infrastructure reliable: the head each several part is simple in structure, the smooth no dead angle of runner.Rationally along sliding, melt temperature and pressure are more easy to control, have improved the extrusion efficiency of material to a great extent in transition between part and the part;
2, long service life: specially designed die body runner has guaranteed the service life of head;
3, low cost of manufacture: novel five-layer co-squeezing head, the each several part structure has been carried out depth optimization, is guaranteeing under enough channel volume, and physical dimension seems smaller and more exquisite reasonable compared with former complicated too fat to move, makes manufacturing cost decline to a great extent;
4, applied widely: novel five-layer co-squeezing head can be used for producing the plastic pipe of using of civilian, industrial, agriculture, chemical industry, military project and specific use, as: automobile oil pipe, mining pipe, high-barrier, high flame retardant pipe etc.Be applicable to the caliber scope of multiple different sizes such as 4mm～2000mm;
5, dismounting is easy to maintenance: novel five-layer co-squeezing head, each several part reasonable installation, connected mode are that layer-stepping connects, and dismounting does not receive other some effects, and it is simple and convenient to change maintenance.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of five helical layer formula tubing.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of five helical layer formula pipe co-extrusion heads, this head adopts detachable structure, and this head connects with the extruder of corresponding different pipe layers; Described head comprises adapter assembly, die body assembly, conveyor screw assembly and die cavity 7; Described conveyor screw assembly is located in the die cavity 7, and described adapter assembly input links to each other with the extruder of corresponding different pipe layers, and output connects with corresponding conveyor screw assembly through the die body assembly; Material is heated to that the opening through the adapter assembly input gets into the die body assembly after the glutinous stream mode; Through die body assembly and corresponding conveyor screw assembly aftershaping; Become the layering pipe with ring section shape, bonding forms uniform five layers of tubing in delivery channel then.
As shown in Figure 2; Described five helical layer formula tubing comprise intensity layer a, adhesive exterior b, barrier layer c, adhesive internal layer d and antistatic layer e; Described adapter assembly comprises first joint 11, second joint 12, the 3rd joint 15 and connection adapter 14; The input of described first joint 11 is connected with barrier layer feed main frame; The input of described second joint 12 is connected with antistatic layer feed main frame, and the input of described the 3rd joint 15 is connected with the inside and outside layer of adhesive feed main frame, and the input of described connection adapter 14 is connected with intensity layer feed main frame.
Described die body assembly comprises first die body 8, second die body 9, the 3rd die body 10 and the 4th die body 13, and this first die body 8, second die body 9, the 3rd die body 10 are connected the back successively with the 4th die body 13 and form the die body assembly with five laminar flow roads.
Described conveyor screw assembly comprises first conveyor screw 1, second conveyor screw 2, triple helical body 3, the 4th conveyor screw 4 and the 5th conveyor screw 5; Described first conveyor screw 1 is connected with second joint 12 through the die body assembly; Described second conveyor screw 2 is connected with the 3rd joint 15 through the die body assembly; Described triple helical body 3 is connected with first joint 11 through the die body assembly; Described the 4th conveyor screw 4 is connected with the 3rd joint 15 through the die body assembly, and described the 5th conveyor screw 5 is connected with connection adapter 14 through the die body assembly.
Be equipped with heater on the outer wall of described die cavity, die body assembly, adapter assembly, for example die cavity 7 is provided with primary heater 6.
The characteristics of five-layer co-squeezing head are to adopt the distribute type structure, and every layer of material can both get into and be uniformly distributed in the runner from corresponding die body, thereby the thin and thick that guarantees each layer tube wall is even, has improved product quality.
The structural manufacturing process characteristics of five-layer co-squeezing head:
Tubing processing is a thermally labile process; When extruding pipe material, pipe die not only will separate melt, also will reduce melt temperature and mechanical inhomogeneities; The wall thickness of every layer of tube wall of five-layer co-squeezing needs evenly, and the bonding between layer and the layer is tight, and this structural manufacturing process to head has proposed high requirement.The runner of molten plastic should be smooth, appears streamlinedly, can not have the dead angle.The angle of flare of head and angle of throat are all very important.The size that head setting section partial cross-section is long-pending must guarantee that material has enough pressure, makes goods closely knit.It is suitable that the head compression ratio is selected for use.Satisfying under the condition of intensity, structure should be compact, with being connected of barrel should be tight, be easy to loading and unloading, the coupling part is designed to regular symmetric shape as far as possible.
The five-layer co-squeezing operation principle:
Be provided with a plurality of openings at the five-layer co-squeezing input, link to each other with many extruders, each extruder corresponding different pipe layers.Material is pushed to heading along with the rotation of screw rod after getting into barrel gradually.Under temperature, pressure effect; Material is heated to glutinous stream mode, and the opening through input gets into the head die body, and the material of glutinous stream mode gets into behind the head under the certain pressure effect; Through streamlined smooth runner aftershaping is the layering pipe with ring section shape; Bonding forms uniform five layers in delivery channel then, and through cooling, the material form becomes elastomeric state by glutinous stream mode at last; Be fixed to glassy state by elastomeric state again, make it to form the multi-layer tubes of geometry and profile composite demand.
Claims (5)
1. helical layer formula pipe co-extrusion head; This head connects with the extruder of corresponding different pipe layers; It is characterized in that described head comprises adapter assembly, die body assembly, conveyor screw assembly and die cavity, described conveyor screw assembly is located in the die cavity; Described adapter assembly input links to each other with the extruder of corresponding different pipe layers, and output connects with corresponding conveyor screw assembly through the die body assembly.
2. a kind of five helical layer formula pipe co-extrusion heads according to claim 1; It is characterized in that; Described five helical layer formula tubing comprise intensity layer, adhesive exterior, barrier layer, adhesive internal layer and antistatic layer; Described adapter assembly comprises first joint, second joint, the 3rd joint and connection adapter, and the input of described first joint is connected with barrier layer feed main frame, and the input of described second joint is connected with antistatic layer feed main frame; The input of described the 3rd joint is connected with the inside and outside layer of adhesive feed main frame, and the input of described connection adapter is connected with intensity layer feed main frame.
3. a kind of five helical layer formula pipe co-extrusion heads according to claim 2; It is characterized in that; Described die body assembly comprises first die body, second die body, the 3rd die body and the 4th die body, and this first die body, second die body, the 3rd die body and the 4th die body are connected the back successively and form the die body assembly with five laminar flow roads.
4. a kind of five helical layer formula pipe co-extrusion heads according to claim 3; It is characterized in that; Described conveyor screw assembly comprises first conveyor screw, second conveyor screw, triple helical body, the 4th conveyor screw and the 5th conveyor screw; Described first conveyor screw is connected with second joint through the die body assembly, and described second conveyor screw is connected with the 3rd joint through the die body assembly, and described triple helical body is connected with first joint through the die body assembly; Described the 4th conveyor screw is connected with the 3rd joint through the die body assembly, and described the 5th conveyor screw is connected with connection adapter through the die body assembly.
5. a kind of five helical layer formula pipe co-extrusion heads according to claim 4 is characterized in that, are equipped with heater on the outer wall of described die cavity, die body assembly, adapter assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201292785U CN202572943U (en) | 2012-03-30 | 2012-03-30 | Five-layer spiral pipe co-extruding nose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201292785U CN202572943U (en) | 2012-03-30 | 2012-03-30 | Five-layer spiral pipe co-extruding nose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202572943U true CN202572943U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201292785U Withdrawn - After Issue CN202572943U (en) | 2012-03-30 | 2012-03-30 | Five-layer spiral pipe co-extruding nose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202572943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580535A (en) * | 2021-08-19 | 2021-11-02 | 江苏诺贝尔塑业有限公司 | Spiral machine head device |
-
2012
- 2012-03-30 CN CN2012201292785U patent/CN202572943U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580535A (en) * | 2021-08-19 | 2021-11-02 | 江苏诺贝尔塑业有限公司 | Spiral machine head device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20160309 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |