CN203567159U - Double-wall corrugated pipe extruding machine head - Google Patents
Double-wall corrugated pipe extruding machine head Download PDFInfo
- Publication number
- CN203567159U CN203567159U CN201320696816.3U CN201320696816U CN203567159U CN 203567159 U CN203567159 U CN 203567159U CN 201320696816 U CN201320696816 U CN 201320696816U CN 203567159 U CN203567159 U CN 203567159U
- Authority
- CN
- China
- Prior art keywords
- internal layer
- conveyor screw
- shaft shoulder
- flow channel
- handpiece body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003825 pressing Methods 0.000 claims description 17
- 230000008676 import Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 14
- 238000010923 batch production Methods 0.000 abstract description 6
- 239000000155 melt Substances 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
- B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a double-wall corrugated pipe extruding machine head which comprises a machine head body, wherein an outer layer spiral body is sleeved inside the machine head body; an inner layer spiral body is sleeved in the outer layer spiral body; a rear pressure cover for fixing the inner layer spiral body is arranged at the rear end of the machine head body; an inner layer shaft shoulder is arranged on a sealing connection position of the outer layer spiral body and the machine head body; a settlement groove which is matched with the inner layer shaft shoulder and of which the opening is towards the rear pressure cover is arranged on the machine head body; the rear end of the inner layer spiral body extends outside the outer layer spiral body and is provided with the inner layer shaft shoulder; the inner layer shaft shoulder is arranged between the rear pressure cover and the outer layer spiral body; the settlement groove matched with the inner layer shaft shoulder is arranged on the rear pressure cover. A melt flowing channel is spirally and axially distributed, only two components are arranged on each sealing position of the melt flowing channel; each sealing position is axially positioned; and the end face is sealed. No component having repeatedly positioning requirement is provided. So the double-wall corrugated pipe extruding machine head has the advantages of low cost, batch production applicability, and reliable sealing performance of inner and outer layer melt channels.
Description
technical field
The utility model relates to a kind of plastic double-walled corrugated pipe extruder head, belongs to plastic extrusion machine head technical field.
Background technology
Double-wall corrugated pipe extruder head for two extruders co-extrusion (is called for short: head) sealing mainly contains two kinds of structures at present.
1, melt flow channel is helical form axial distribution; Specification limit is applied widely.The version that has the companies such as ITIB, corma to adopt abroad.This structure of the many employings of domestic production producer.
2, melt flow channel is that helical form end face distributes; Be mainly used in 600 and above specification.The version that has unicor company to adopt abroad.
Melt flow channel is the handpiece structure of helical form axial distribution, meet melt sealant.High to part processing precision requirement, assembling simultaneously need be joined work, and fitted position needs strict control.As shown in Figure 1: on internal layer conveyor screw 2, be provided with the internal layer shaft shoulder 8 with the place of being tightly connected of handpiece body 1, handpiece body 1 is provided with the opening that matches with the internal layer shaft shoulder 8 towards the deep gouge of melt flow channel outlet;
On outer conveyor screw 3, be provided with the outer shaft shoulder 9 with the place of being tightly connected of handpiece body 1.Handpiece body 1 is provided with the opening that matches with the outer shaft shoulder 9 towards the deep gouge of melt flow channel outlet;
High to handpiece body 1 accurate to dimension requirement, internally the fitted position required precision of helical layer body 2, outer conveyor screw 3 is high.
Between internal layer conveyor screw 2 and outer conveyor screw 3, form internal layer melt flow channel 10, between outer conveyor screw 3 and handpiece body 1, form outer melt flow channel 11, handpiece body 1 is provided with respectively and internal layer melt flow channel import 12, the outer melt flow channel import 13 of corresponding connection one by one of internal layer melt flow channel 10, outer melt flow channel 11.
Internal layer conveyor screw 2 is combined into one by pin 7 with outer conveyor screw 3, and by rear pressing cover 5, by the fastening structure of screw 6, pin 7 is stressed in actual applications is very easily out of shape, cuts off, causes inside and outside melt mixed, head damage.
Therefore, processing cost is high, assembly difficulty is large, interchangeablity is poor, be not easy to batch production, very easily causes melt leakage, inside and outside melt mixed simultaneously, has a strong impact on and produces and quality of item.
Melt flow channel is the handpiece structure that helical form end face distributes, and its end face spiral processing need be with numerical control machining center or special equipment, and manufacturing cost is high; The end face melt flow channel of combination, high to the requirement of part plane precision, connecting need be many with high-strength screw and quantity, requires screw pretightning force uniformity high.Therefore, processing cost is high, assembly difficulty is large.
utility model content
Problem to be solved in the utility model is to provide a kind of low cost, is suitable for batch production, and inside and outside layer melt canal seals reliable double-wall corrugated pipe extruder head.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A double-wall corrugated pipe extruder head, comprises handpiece body, is set with outer conveyor screw in described handpiece body, is set with internal layer conveyor screw in outer conveyor screw; The rear end of handpiece body is provided with for the fixing spirochetal rear pressing cover of internal layer; On outer conveyor screw, be provided with the internal layer shaft shoulder with the place of being tightly connected of handpiece body, handpiece body is provided with the opening that matches with the internal layer shaft shoulder towards the deep gouge of rear pressing cover;
The spirochetal rear end of internal layer reaches outer spirochetal outside and is provided with the internal layer shaft shoulder; The internal layer shaft shoulder is arranged between rear pressing cover and outer conveyor screw, and described rear pressing cover is provided with the deep gouge matching with the internal layer shaft shoulder.
Below the further optimization of the utility model to such scheme:
Rear pressing cover is fixedly connected with handpiece body by screw.
Further optimize: between described internal layer conveyor screw and outer conveyor screw, form internal layer melt flow channel, between outer conveyor screw and handpiece body, form outer melt flow channel.
Further optimize: handpiece body is provided with the outer melt flow channel import being communicated with outer melt flow channel, and handpiece body is provided with interior layered material pipe, and described interior layered material pipe is provided with the internal layer melt flow channel import being communicated with internal layer melt flow channel.
The utility model adopts such scheme, and melt flow channel is helical form axial distribution; Each sealing place of melt flow channel only has two parts to form; Each sealing place is axial location, end face seal.The part requiring without resetting.Therefore head manufacture low-cost, be suitable for batch production, and the melt canal sealing of inside and outside layer is reliable.The main stressed employing shaft shoulder structure of head part, holding capacity greatly, evenly reliable, simple in structure.The less important stressed employing common elements compressing structure of head part, attachment screw quantity is few, is convenient to assembling.Therefore the utlity model has cost low, be suitable for batch production, and inside and outside layer melt canal seals reliable advantage.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
accompanying drawing explanation
Accompanying drawing 1 is the structural representation of melt flow channel helical form axial distribution head in the utility model background technology;
Accompanying drawing 2 is structural representations of double-wall corrugated pipe extruder head in the utility model embodiment.
In figure: 1-handpiece body; 2-internal layer conveyor screw; The outer conveyor screw of 3-; Layered material pipe in 4-; 5-rear pressing cover; 6-screw; 7-pin; The 8-internal layer shaft shoulder; The outer shaft shoulder of 9-; 10-internal layer melt flow channel; The outer melt flow channel of 11-; The import of 12-internal layer melt flow channel; The outer melt flow channel import of 13-.
The specific embodiment
Embodiment, as shown in Figure 2, a kind of double-wall corrugated pipe extruder head, comprises handpiece body 1, is set with outer conveyor screw 3 in described handpiece body 1, in outer conveyor screw 3, is set with internal layer conveyor screw 2; The rear end of handpiece body 1 is provided with for the fixing rear pressing cover 5 of internal layer conveyor screw 2; Rear pressing cover 5 is fixedly connected with handpiece body 1 by screw 6.
Between described internal layer conveyor screw 2 and outer conveyor screw 3, form internal layer melt flow channel 10, form outer melt flow channel 11 between outer conveyor screw 3 and handpiece body 1, handpiece body 1 is provided with the outer melt flow channel import 13 being communicated with outer melt flow channel 11.
On outer conveyor screw 3, be provided with the outer shaft shoulder 9 with the place of being tightly connected of handpiece body 1, handpiece body 1 is provided with the opening that matches with the outer shaft shoulder 9 towards the deep gouge of rear pressing cover 5;
The rear end of internal layer conveyor screw 2 reaches the outside of outer conveyor screw 3 and is provided with the internal layer shaft shoulder 8; The internal layer shaft shoulder 8 is arranged between rear pressing cover 5 and outer conveyor screw 3, and described rear pressing cover 5 is provided with the deep gouge matching with the internal layer shaft shoulder 8.
The dimension precision requirement of the outer shaft shoulder 9, the internal layer shaft shoulder 8 is low, and sealing is reliable.
The Main Function power that head is born at the shaft shoulder position of handpiece body 1, internal layer conveyor screw 2, the shaft shoulder position of outer conveyor screw 3.1 processing deep gouge of handpiece body, is convenient to processing.
The utility model adopts such scheme, and melt flow channel is helical form axial distribution; Each sealing place of melt flow channel only has two parts to form; Each sealing place is axial location, end face seal.The part requiring without resetting.Therefore head manufacture low-cost, be suitable for batch production, and the melt canal sealing of inside and outside layer is reliable.
Be more than the application's a specific embodiment, these embodiment are only not used in restriction creation scope of the present utility model for illustrating the utility model to create.After having read the content of the utility model creation instruction, those skilled in the art can create and make various changes or modification the utility model, and these equivalent form of values fall into the application's appended claims limited range equally.
Claims (4)
1. a double-wall corrugated pipe extruder head, comprises handpiece body (1), is set with outer conveyor screw (3) in described handpiece body (1), is set with internal layer conveyor screw (2) in outer conveyor screw (3); The rear end of handpiece body (1) is provided with for the fixing rear pressing cover (5) of internal layer conveyor screw (2); It is characterized in that: outer conveyor screw (3) place of being tightly connected upper and handpiece body (1) is provided with the outer shaft shoulder (9), handpiece body (1) is provided with the opening that matches with the outer shaft shoulder (9) towards the deep gouge of rear pressing cover (5);
The rear end of internal layer conveyor screw (2) reaches the outside of outer conveyor screw (3) and is provided with the internal layer shaft shoulder (8); The internal layer shaft shoulder (8) is arranged between rear pressing cover (5) and outer conveyor screw (3), and described rear pressing cover (5) is provided with the deep gouge matching with the internal layer shaft shoulder (8).
2. a kind of double-wall corrugated pipe extruder head according to claim 1, is characterized in that: rear pressing cover (5) is fixedly connected with handpiece body (1) by screw (6).
3. a kind of double-wall corrugated pipe extruder head according to claim 1 and 2, it is characterized in that: between described internal layer conveyor screw (2) and outer conveyor screw (3), form internal layer melt flow channel (10), between outer conveyor screw (3) and handpiece body (1), form outer melt flow channel (11).
4. a kind of double-wall corrugated pipe extruder head according to claim 3, it is characterized in that: handpiece body (1) is provided with the outer melt flow channel import (13) being communicated with outer melt flow channel (11), handpiece body (1) is provided with interior layered material pipe (4), and described interior layered material pipe (4) is provided with the internal layer melt flow channel import (12) being communicated with internal layer melt flow channel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320696816.3U CN203567159U (en) | 2013-11-07 | 2013-11-07 | Double-wall corrugated pipe extruding machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320696816.3U CN203567159U (en) | 2013-11-07 | 2013-11-07 | Double-wall corrugated pipe extruding machine head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203567159U true CN203567159U (en) | 2014-04-30 |
Family
ID=50534915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320696816.3U Expired - Lifetime CN203567159U (en) | 2013-11-07 | 2013-11-07 | Double-wall corrugated pipe extruding machine head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203567159U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003656A (en) * | 2016-08-05 | 2016-10-12 | 张家港市金达利模塑有限公司 | Double-wall corrugated pipe extrusion die |
| CN106042321A (en) * | 2016-08-05 | 2016-10-26 | 张家港市金达利模塑有限公司 | Double-wall bellows extrusion mold interlayer airtight independent airway |
| CN113580535A (en) * | 2021-08-19 | 2021-11-02 | 江苏诺贝尔塑业有限公司 | Spiral machine head device |
-
2013
- 2013-11-07 CN CN201320696816.3U patent/CN203567159U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003656A (en) * | 2016-08-05 | 2016-10-12 | 张家港市金达利模塑有限公司 | Double-wall corrugated pipe extrusion die |
| CN106042321A (en) * | 2016-08-05 | 2016-10-26 | 张家港市金达利模塑有限公司 | Double-wall bellows extrusion mold interlayer airtight independent airway |
| CN106003656B (en) * | 2016-08-05 | 2018-03-06 | 张家港市金达利模塑有限公司 | Double-wall corrugated pipe extrusion die |
| CN106042321B (en) * | 2016-08-05 | 2018-06-29 | 张家港市金达利模塑有限公司 | The closed separated air flue of double-wall corrugated pipe extrusion die interbedded gas |
| CN113580535A (en) * | 2021-08-19 | 2021-11-02 | 江苏诺贝尔塑业有限公司 | Spiral machine head device |
| CN113580535B (en) * | 2021-08-19 | 2023-07-28 | 江苏诺贝尔塑业有限公司 | Screw machine head device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |