CN110065212B - Multilayer die head mechanism capable of changing structure of extruded pipe - Google Patents
Multilayer die head mechanism capable of changing structure of extruded pipe Download PDFInfo
- Publication number
- CN110065212B CN110065212B CN201910432469.5A CN201910432469A CN110065212B CN 110065212 B CN110065212 B CN 110065212B CN 201910432469 A CN201910432469 A CN 201910432469A CN 110065212 B CN110065212 B CN 110065212B
- Authority
- CN
- China
- Prior art keywords
- die
- multilayer
- die head
- runner
- layer
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000004513 sizing Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
-
- 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
- B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a multilayer die head mechanism capable of changing the structure of an extruded pipe, which comprises multilayer flow channels arranged in a die head, wherein a plurality of feed inlets are arranged on the circumference of the die head, and the number of the feed inlets is consistent with that of the flow channels; the circumference of the feed inlet of the multilayer flow channel is equally divided into radial feed channels with corresponding layers or more than the layers, wherein the open holes of the feed channels on the layer of flow channel corresponding to the feed inlet are closed ports, and the open holes on the rest flow channels are through holes. The multilayer die head mechanism capable of changing the structure of the extruded pipe adopts the rotation angle to control different flow channels, adjusts the materials of different layers of sizing materials and adjusts the number of layers of the extruded pipe structure; the mechanism has the advantages of simple structure, convenient use and convenient adjustment, and saves the production cost.
Description
Technical Field
The invention relates to the field of dies, in particular to a multilayer die head mechanism capable of changing the structure of an extruded pipe.
Background
In the process of extrusion production of multi-layer pipes, different pipe structures are sometimes needed, and corresponding adjustment is needed, for example, in the process of extrusion production of five-layer pipes, the sizing materials of different layers are sometimes changed, and the number of layers of pipe extrusion is also possibly needed to be changed. This is complicated to change and sometimes involves replacement of the host and die. Time and labor are wasted, and the production cost is greatly increased.
Therefore, how to solve the above-mentioned problems is a urgent problem to be solved.
Disclosure of Invention
Aiming at the technical problems, the invention provides a multilayer die head mechanism capable of changing the structure of an extruded pipe, wherein different flow passages are controlled by adopting a rotation angle, the materials of different layers of sizing materials are adjusted, and the number of layers of the extruded pipe structure is adjusted; the mechanism has the advantages of simple structure, convenient use and convenient adjustment, and saves the production cost.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
The multilayer die head mechanism capable of changing the structure of the extruded pipe comprises a plurality of layers of flow channels arranged in a die head, wherein a plurality of feed inlets are arranged on the circumference of the die head, and the number of the feed inlets is consistent with that of the flow channels; the circumference of the feed inlet of the multilayer flow channel is equally divided into radial feed channels with corresponding layers or more than the layers, wherein the open holes of the feed channels on the layer of flow channel corresponding to the feed inlet are closed ports, and the open holes on the rest flow channels are through holes. Radial feed channels with corresponding layers or more than the layers are equally arranged on the circumference of the feed inlet of each layer of flow channel, different flow channels are controlled by adopting a rotation angle, the materials of sizing materials with different layers are regulated, and the layers of the extruded pipe structure are regulated.
The die head comprises a die connecting body, a die waist and a pressing plate which are sequentially connected, a core die connecting body is arranged in the die connecting body, and an insert is arranged between the core die connecting body and each layer of flow channel. The structure of the die head and the connection relation between the die heads are simple, and each layer of flow is convenient to adjust.
A core rod is further arranged at the inner center of the die head, and a heating rod is arranged in the core rod. The heating rod is used for heating the sizing material.
Further, the multi-layer flow channels are positioned through cylindrical pins. The cylindrical pins are positioned to avoid mutual displacement between the runners.
The front end of the die connector is further provided with a thermocouple joint and a die adjusting sleeve in sequence, and the die adjusting sleeve is provided with an adjusting screw. The thermocouple junction is used to detect the temperature of the gum material before it is ejected.
Further, mica heating rings are respectively arranged on the front end, the rear end surface and the surface of the die waist of the die connector. The mica heating ring is used for heating the sizing material, and a plurality of positions are arranged for ensuring the heating efficiency and uniformity of the sizing material.
The center of the pressing plate is further fixed with the connecting seat and the cover plate outwards in sequence.
The number of the multi-layer flow channels is five, and the number of the radial feeding channels is eight. Five-layer flow channels and eight radial feeding channels can meet different requirements on products, so that a main machine and a die head are prevented from being replaced, and labor and production cost are saved.
Compared with the prior art, the invention has the following technical advantages:
1. Equally dividing multiple openings on the circumference of a feed inlet of each layer of runner in the die head, controlling different runners by adopting a rotation angle, adjusting the materials of different layers of sizing materials, and adjusting the number of layers of an extruded pipe structure;
2. the die head has a simple structure, and each layer of the flow is convenient to adjust;
3. the inside heating rod that establishes of die head, outside establish mica heat ring, heat the efficient, the homogeneity of sizing material is good.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a perspective view of a flow channel;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a left side view of FIG. 3;
Fig. 5 is a cross-sectional view A-A of fig. 4.
In the figure: die head 1, feed inlet 2, runner 3, radial feed channel 4, closed port 4a, through hole 4b, die connector 5, die waist 6, platen 7, connecting seat 8, cover plate 9, mica heating ring 10, thermocouple joint 11, die adjusting sleeve 12, adjusting screw 13, insert two 14, insert one 15, insert three 16, insert four 17, runner four 18, runner three 19, runner two 20, runner one 21, cylindrical pin 22, runner five 23, core rod 24, gasket 25, heating rod 26, core mold connector 27.
Detailed Description
The invention will be described in further detail with reference to examples of embodiments in the accompanying drawings.
As shown in fig. 1 to 5, the multilayer die head mechanism capable of changing the structure of the extruded pipe comprises a multilayer runner 3 arranged in a die head 1, wherein the multilayer runner is five layers, and a runner five 23, a runner four 18, a runner three 19, a runner two 20 and a runner one 21 are sequentially arranged from the center outwards as shown in fig. 5; as shown in fig. 1, a plurality of feeding holes 2 are formed in the circumference of the die head 1, and the number of the feeding holes is five; as shown in fig. 2, eight equally divided openings are equally divided on the circumference of the feed inlet 2 of each layer of the multi-layer flow channel 3, that is, eight radial feed channels 4 are provided, wherein the openings corresponding to the feed inlet 2 are closed openings 4a, and the remaining seven openings are through holes 4b.
As shown in fig. 3/5, the die head 1 comprises a die connecting body 5, a die waist 6 and a pressing plate 7 which are sequentially connected, wherein a core die connecting body 27 is arranged in the die connecting body 5, and an insert is arranged between the core die connecting body 27 and each layer of flow channel 3. As shown in fig. 5, the inserts are an insert four 17, an insert three 16, an insert two 14 and an insert one 15 in sequence from inside to outside.
As shown in fig. 5, a core rod 24 is provided at the center in the die head 1, and a heating rod 26 is provided in the core rod 24. A gasket 25 is provided between the outermost flow passage five 23 and the mandrel 23. The multi-layer flow channels 3 are positioned by cylindrical pins 22.
As shown in fig. 5, the front end of the die connecting body 5 is provided with a thermocouple joint 11 and a die adjusting sleeve 12 in sequence, and the die adjusting sleeve 12 is provided with an adjusting screw 13. The front end and the rear end of the die connector 5 and the surface of the die waist 6 are respectively provided with mica heating rings 10. The connecting seat 8 and the cover plate 9 are sequentially fixed outwards in the middle of the pressing plate 7.
As shown in fig. 1, five feeding ports 2 correspond to five different sizing materials, and different sizing materials of different layers are adjusted by controlling different flow channels through rotation angles according to different pipe specifications required to be replaced in the production process of the multilayer pipe extrusion die head. As shown in fig. 2, eight equally divided openings 4 are equally divided on the circumference of the feed inlet 2 of each layer of flow channel, wherein the openings 4 corresponding to the feed inlet 2 are closed openings 4a, and the rest seven openings are through holes 4b; when the sizing material entering from the feeding hole 2 corresponds to the sealing hole 4a, the sizing material is split into annular forms along the runner to form a pipe blank; when the sizing material fed by the feeding hole 2 corresponds to any through hole 4b, the sizing material directly enters the runner of the inner layer through the through hole, and then the runner of the inner layer corresponds to other sizing material holes or extrudes other sizing materials; or no corresponding feed inlet exists, the runner of the layer has no sizing material, and the whole die head has one layer of sizing material.
As shown in fig. 1/5, the feed inlet of the outer layer runner I21 is rotated by an angle and then is rotated to the next feed inlet, so that the original rubber material of the layer is changed into the rubber material of the next layer; if the inlet of the first 21 runner is rotated to any one of the three inlet channels without the inlet, no sizing material is extruded in the first 21 runner, and the pipe structure is changed from five layers to four layers.
In summary, the invention is shown in the specification and the drawings, the actual sample is prepared and is subjected to multiple use tests, and from the test effect, the invention can achieve the expected purpose, and the practicability is undoubted. The above-described embodiments are merely for convenience of description of the invention and are not to be construed as limiting in form; any equivalent embodiments of local changes or modifications made by the disclosed technology without departing from the scope of the technical features and similar features of the present invention fall within the scope of the present invention, as will be apparent to those skilled in the art.
Claims (8)
1. A multilayer die head mechanism capable of changing the structure of an extruded pipe, comprising a multilayer runner (3) arranged in a die head (1), and being characterized in that: the circumference of the die head (1) is provided with a plurality of feeding holes (2), and the number of the feeding holes is consistent with that of the flow channels (3); radial feed channels (4) with corresponding layers or more than the layers are evenly distributed on the circumference of the multilayer runner (3), wherein openings of the feed channels (4) on the layer of runner corresponding to the feed inlet (2) are closed openings (4 a), openings on the other runners are through holes (4 b), different runners are controlled by adopting a rotation angle to adjust different layers of sizing materials, and sizing materials entering from the feed inlet (2) are split into annular forms along the runners when corresponding to the closed openings (4 a).
2. The multilayer die mechanism of claim 1, wherein the multilayer die mechanism comprises: the die head (1) comprises a die connecting body (5), a die waist (6) and a pressing plate (7) which are sequentially connected, a core die connecting body (27) is arranged in the die connecting body (5), and an insert is arranged between the core die connecting body (27) and each layer of fluid (3).
3. The multilayer die mechanism of claim 1, wherein the multilayer die mechanism comprises: a core rod (24) is arranged in the center of the die head (1), and a heating rod (26) is arranged in the core rod (24).
4. The multilayer die mechanism of claim 1, wherein the multilayer die mechanism comprises: the multi-layer flow channels (3) are positioned through cylindrical pins (22).
5. The multilayer die mechanism of claim 2, wherein the multilayer die mechanism comprises: the front end of the die connecting body (5) is sequentially provided with a thermocouple joint (11) and a die adjusting sleeve (12), and an adjusting screw (13) is arranged on the die adjusting sleeve (12).
6. The multilayer die mechanism of claim 2, wherein the multilayer die mechanism comprises: the front end, the rear end surface and the surface of the die waist (6) of the die connector (5) are respectively provided with mica heating rings (10).
7. The multilayer die mechanism of claim 2, wherein the multilayer die mechanism comprises: the middle of the pressing plate (7) is outwards sequentially fixed with the connecting seat (8) and the cover plate (9).
8. The multilayer die mechanism of any one of claims 1 to 7, wherein the multilayer die mechanism is capable of changing the structure of an extruded tube, wherein: the multi-layer runner (3) is a five-layer runner, and the number of radial feeding channels (4) is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910432469.5A CN110065212B (en) | 2019-05-23 | 2019-05-23 | Multilayer die head mechanism capable of changing structure of extruded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910432469.5A CN110065212B (en) | 2019-05-23 | 2019-05-23 | Multilayer die head mechanism capable of changing structure of extruded pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110065212A CN110065212A (en) | 2019-07-30 |
| CN110065212B true CN110065212B (en) | 2024-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910432469.5A Active CN110065212B (en) | 2019-05-23 | 2019-05-23 | Multilayer die head mechanism capable of changing structure of extruded pipe |
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| Country | Link |
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| CN (1) | CN110065212B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450371A (en) * | 2019-09-04 | 2019-11-15 | 象山百斯特机械制造有限公司 | A kind of corrugating machine multilayer head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205395084U (en) * | 2016-03-11 | 2016-07-27 | 山东巨兴塑业有限公司 | A five layers of compound tubular product molding die for extrude at a high speed |
| CN210190521U (en) * | 2019-05-23 | 2020-03-27 | 德科摩橡塑科技(东莞)有限公司 | Multilayer die head mechanism capable of changing structure of extruded pipe |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6058011B2 (en) * | 1975-08-12 | 1985-12-18 | 凸版印刷株式会社 | Multilayer parison molding equipment for blow molding |
| US20050285297A1 (en) * | 2004-06-21 | 2005-12-29 | Park Edward H | Extrusion or pultrusion of a polymer undergoing polymerization |
| CN102350780B (en) * | 2011-07-13 | 2013-07-03 | 北京化工大学 | Apparatus and method for preparing polymer foam material based on differential principle |
| CN102601961B (en) * | 2012-03-15 | 2014-08-06 | 北京化工大学 | Device for preparing nano laminated composite material with adjustable layers |
| JP2014188991A (en) * | 2013-03-28 | 2014-10-06 | Toppan Printing Co Ltd | Multilayer extrusion molding device |
| CN106608036B (en) * | 2015-10-23 | 2018-10-19 | 上海清远管业科技有限公司 | Continuous fiber cloth or the multi-layer co-extruded extrusion die of fiber cloth set |
| EP3308939A1 (en) * | 2016-10-17 | 2018-04-18 | Nordson Corporation | Flow diverter valve for an extrusion system |
| CN108819172A (en) * | 2018-07-16 | 2018-11-16 | 德科摩橡塑科技(东莞)有限公司 | Five layers of pipe extrusion die |
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- 2019-05-23 CN CN201910432469.5A patent/CN110065212B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205395084U (en) * | 2016-03-11 | 2016-07-27 | 山东巨兴塑业有限公司 | A five layers of compound tubular product molding die for extrude at a high speed |
| CN210190521U (en) * | 2019-05-23 | 2020-03-27 | 德科摩橡塑科技(东莞)有限公司 | Multilayer die head mechanism capable of changing structure of extruded pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110065212A (en) | 2019-07-30 |
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