CN109177112A - The continuous extruder head of Blow Molded Articles surface striped - Google Patents
The continuous extruder head of Blow Molded Articles surface striped Download PDFInfo
- Publication number
- CN109177112A CN109177112A CN201811050837.1A CN201811050837A CN109177112A CN 109177112 A CN109177112 A CN 109177112A CN 201811050837 A CN201811050837 A CN 201811050837A CN 109177112 A CN109177112 A CN 109177112A
- Authority
- CN
- China
- Prior art keywords
- molded articles
- striped
- blow molded
- runner
- extruder head
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 61
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 230000007704 transition Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000003746 surface roughness Effects 0.000 claims description 3
- 238000000071 blow moulding Methods 0.000 abstract description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 9
- 235000012438 extruded product Nutrition 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
Abstract
The present invention discloses a kind of continuous extruder head of Blow Molded Articles surface striped, belong to extrusion and blow molding technical field, solve existing extrusion head has pipe easily cracked when producing surface and having the product of multiple stripeds, the not high problem of surface quality, the extrusion head of this case includes upper shell, lower shell, spreader, surface strip streakline flow splitter and extrusion die, this case passes through setting surface strip streakline flow splitter, and multiple second material outlets are set in its inner peripheral wall, and the outlet of these second materials connects with the outside wall surface of inner flow passage, so that streak line is formed on the outer surface of pipe, without destroying the integrality of pipe；By the way that transition runner is arranged in surface strip streakline flow splitter, so that each outlet pressure of second material is identical, so that the multiple streak lines formed are in the same size, product surface is more smooth, beautiful, and products surface quality is higher.
Description
Technical field
The present invention relates to extrusion and blow molding technical field, in particular to a kind of multiple stripeds in Blow Molded Articles surface connect
Continuous formula squeezes out head.
Background technique
First-born produce when surface has the product of multiple stripeds of existing continuous extruder usually has following defect: colour is molten
Melting material enters surface strip streakline branching block from external flow passage, and surface strip streakline branching block breaks the tubulose material of inner flow passage formation
Embryo, colored melting charge filling tubulose material embryo break place, ultimately form the tubulose material embryo with color fringe；But such knot
Structure, due to inner flow passage formed be not a complete pipe, easily occur striped pipe product cracking, fall-down test not
Pass through, also wastes raw material；Secondly, Blow Molded Articles carry out secondary spraying again after processing is completed, the product table processed in this way
Noodles line will appear discolouration phenomena, finally influence product quality.
Summary of the invention
In order to solve the above-mentioned technical problem, the object of the present invention is to provide one kind to be capable of forming complete pipe, product surface
The continuous extruder head of the higher Blow Molded Articles surface striped of quality.
In order to realize the purpose of foregoing invention, the present invention adopts the following technical scheme:
A kind of continuous extruder head of Blow Molded Articles surface striped, comprising:
Upper shell is provided with first material entrance；
Lower shell is fixed at the lower end of the upper shell, second material entrance is provided on the lower shell；
Spreader is coaxially set in the lower shell, and the upper end of the spreader extends in the upper shell, described
The inner wall of the outside wall surface of spreader and the upper shell, the lower shell inner wall between be collectively formed and first object
The inner flow passage that material entrance communicates；
Surface strip streakline flow splitter is coaxially set in the lower shell and is located at the outside of the spreader, the surface
Be provided with the outlet of multiple second materials in the inner peripheral wall of streak line flow splitter, multiple second materials outlets with it is described interior
The outside wall surface of portion's runner connects, and the surface strip streakline flow splitter, which has, is connected to the second material entrance and multiple described the
The transition runner of two material outlets；
Extrusion die is fixed at the lower end of the lower shell, is provided in the extrusion die and the inside stream
The extrusion manifold that road communicates.
In above-mentioned technical proposal, it is preferred that multiple second material outlets are circumferentially evenly arranged.
In above-mentioned technical proposal, it is preferred that the transition runner includes being arranged under the surface strip streakline flow splitter
At least one lower flow channel groove on end face, at least one upper runner being arranged on the surface strip streakline flow splitter upper surface
Groove, through the runner that the surface strip streakline flow splitter and connection the upper runner groove and the lower flow channel groove is arranged
Hole.
In above-mentioned technical proposal, it is preferred that offered on the lower end surface of the surface strip streakline flow splitter multiple described
Lower flow channel groove, multiple radially even arrangements of lower flow channel groove.
In above-mentioned technical proposal, it is preferred that be located at the lower flow channel groove of inside in the two neighboring lower flow channel groove
It is narrower than the lower flow channel groove positioned at outside.
In above-mentioned technical proposal, it is preferred that the upper surface of the surface strip streakline flow splitter offers multiple described upper
Flow path groove, multiple radially even arrangements of upper runner groove.
In above-mentioned technical proposal, it is preferred that be located at the upper runner groove of inside in the two neighboring upper runner groove
It is narrower than the lower flow channel groove positioned at outside.
In above-mentioned technical proposal, it is preferred that the surface strip streakline flow splitter is provided through multiple runners
Hole, the runner hole aperture that inside is located in multiple runner holes are less than positioned at the runner hole aperture in outside.
In above-mentioned technical proposal, it is preferred that the extrusion die include mouth mold, be coaxially set on the inside of the mouth mold and
The core model mutually fixed with the spreader forms described squeeze between the inner wall of the mouth mold and the outside wall surface of the core model
Discharging channel.
In above-mentioned technical proposal, it is preferred that the surface roughness of the upper and lower flow path groove is 0.4~0.8.
The present invention obtains compared with prior art following the utility model has the advantages that this case is by setting surface strip streakline flow splitter, and
Multiple second material outlets are set in its inner peripheral wall, and the outlet of these second materials connects with the outside wall surface of inner flow passage,
So that streak line is formed on the outer surface of pipe, without destroying the integrality of pipe；By being shunted in surface strip streakline
Transition runner is set in ring, so that each outlet pressure of second material is identical, so that the multiple streak lines formed are in the same size,
Product surface is more smooth, beautiful, and products surface quality is higher.
Detailed description of the invention
Attached drawing 1 is that the internal structure solid of the continuous extruder head of Blow Molded Articles surface striped of the invention is shown
It is intended to；
Attached drawing 2 is the partial enlargement diagram in attached drawing 1 at A；
Attached drawing 3 is the schematic top plan view of surface strip streakline flow splitter of the invention；
Attached drawing 4 is the diagrammatic cross-section in attached drawing 3 along B-B cutting line；
Attached drawing 5 is the elevational schematic view of surface strip streakline flow splitter of the invention；
Wherein: 100, the continuous extruder head of Blow Molded Articles surface striped；1, upper shell；11, first material entrance；
2, lower shell；21, second material entrance；3, spreader；31, inner flow passage；4, surface strip streakline flow splitter；41, second material
Outlet；42, transition runner；421, lower flow channel groove；422, upper runner groove；423, runner hole；5, extrusion die；51, mouth mold；
52, core model；53, extrusion manifold.
Specific embodiment
By the technology contents of invention are described in detail, construction feature, are reached purpose and efficacy, simultaneously below in conjunction with embodiment
Cooperation attached drawing is described in detail.
The continuous extruder head 100 of the Blow Molded Articles surface striped of this case includes upper shell 1, lower shell 2, divides
Flow shuttle 3, surface strip streakline flow splitter 4, extrusion die 5.Below in conjunction with 1~attached drawing of attached drawing 5 illustrate each structure composition and
Its working principle；Wherein, continuous extruder head shown in positional relationship and attached drawing 1 up and down described in the present embodiment
Positional relationship it is corresponding, " axial direction " is that upper shell/lower shell/spreader/surface strip streakline flow splitter is upper downward
Direction is stretched, " circumferential direction " is upper shell/lower shell/spreader/surface strip streakline flow splitter radius radiation direction.
As shown in Figure 1 and Figure 2, the continuous extruder head 100 of the Blow Molded Articles surface striped of this case
External structure includes upper shell 1, lower shell 2 and extrusion die 5, wherein lower shell 2 is fixed at the lower end of upper shell 1
In portion, extrusion die 5 is fixed on the lower end of lower shell 2.Internal structure includes that spreader 3 and surface strip streakline shunt
Ring 4, wherein spreader 3 is coaxially set in lower shell 2, and the upper end of spreader 3 extends upwardly in upper shell 1, spreader
The inner wall of 3 outside wall surface and upper shell 1, lower shell 2 inner wall between inner flow passage 31, and upper shell 1 is collectively formed
On be provided with first material entrance 11, which is connected with inner flow passage 31, and so, first material can
Enter inner flow passage 31 by first material entrance 11, and shunts the tubulose material base for forming an entirety by spreader 3.Surface
Streak line flow splitter 4 is coaxially set in the outside in lower shell 2 and being located at spreader 3, sets in the inner peripheral wall of surface flow splitter 4
It is equipped with multiple second materials outlet 41, these second materials outlet 41 connects with the outside wall surface of inner flow passage 31, is used for by the
Multiply streak line is formed on the outer surface for the tubulose material embryo that one material is formed.Extrusion die 5 includes mouth mold 51, is coaxially set in mouth
51 inside of mould and the core model 52 fixed with 3 phase of spreader, form between the inner wall of mouth mold 51 and the outside wall surface of core model 52 and squeeze out
Material path 53, the extrusion manifold 53 are connected with inner flow passage 31, in this way, the tubulose material embryo with multiple streak lines can be by squeezing
53 extruded product of discharging channel.
As shown in 3~attached drawing of attached drawing 5, surface strip streakline flow splitter 4 have connection second material entrance 21 and these second
The transition runner 42 of material outlet 41.Specifically, in the present embodiment, being opened up in the inner peripheral wall of surface strip streakline flow splitter 4
There are 16 second material outlets 41；Transition runner 42 includes 3 lower flow channels being arranged on 4 lower end surface of surface strip streakline flow splitter
Groove 421,12 upper runner grooves 422 being arranged on 4 upper surface of surface strip streakline flow splitter run through setting surface strip streakline
Flow splitter 4 and 5 runner holes for being connected to upper runner groove 422 and lower flow channel groove 421；Wherein, two neighboring lower flow channel groove
Lower flow channel groove 421 in 421 positioned inside is narrower than the lower flow channel groove 421 positioned at outside；Two neighboring upper runner groove 422
In be located inside upper runner groove 422 be narrower than the upper runner groove 422 positioned at outside；And it is located in multiple runner holes 423
423 aperture of runner hole of inside is less than positioned at 423 aperture of runner hole in outside, and such flow passage structure is shunted from surface strip streakline
The upper surface of the lower end surface of ring 4 towards surface strip streakline flow splitter 4, which is walked, always to be seen, each flow path groove narrows step by step to shoal, thus
Increase the extrusion pressure of second material, guarantees that second material can be gentle by second material outlet 41 along each flow path groove
It flows into inner flow passage 31, to form multiply streak line on the outer surface of the tubulose material embryo of first material, finally leads to together
Cross 53 extruded product of extrusion manifold.In order to increase the smoothness of each flow path groove, second material can smoothly enter into interior
Converge in portion's runner 31 with first material, the surface roughness of each flow path groove is 0.4~0.8, preferably 0.4.And this
The flow passage structure to shoal kind narrow step by step but also the streak line that is formed on the outer surface of tube blank of first material of second material is big
Small consistent, more smooth, beautiful, the surface quality of product is higher.In other embodiments, upper and lower flow path groove and stream
The number in road hole is not limited to particular number described above, be also possible to it is single or more, in order to enable the striped formed
Line is more beautiful, and the number of the second material outlet of surface strip streakline flow splitter is preferably even number, and along its circumferential uniform cloth
It sets.
The working principle of the continuous extruder head 100 of the Blow Molded Articles surface striped of this case is as follows: the first object
Material is entered in inner flow passage 31 by first material entrance 11, and the tubulose material of an entirety is formed by 3 shunting function of spreader
Embryo, second material are entered in transition runner 42 by second material entrance 21, and reach inside stream by second material outlet 41
Road 31 converges with first material, and forms multiple streak lines in the outer surface of tubulose material embryo, then has the pipe of multiple streak lines
Shape material embryo passes through 53 extruded product of extrusion manifold together.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by spirit, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of continuous extruder head of Blow Molded Articles surface striped characterized by comprising
Upper shell (1) is provided with first material entrance (11)；
Lower shell (2) is fixed at the lower end of the upper shell (1), is provided with second material on the lower shell (2) and enters
Mouth (21)；
Spreader (3) is coaxially set in the lower shell (2), and the upper end of the spreader (3) extends to the upper cylinder
In body (1), the inner wall of the outside wall surface of the spreader (3) and the upper shell (1), the lower shell (2) inner wall it
Between the inner flow passage (31) communicated with the first material entrance (11) is collectively formed；
Surface strip streakline flow splitter (4) is coaxially set in the lower shell (2) and is located at the outside of the spreader (3), institute
It is provided with multiple second materials outlet (41) in the inner peripheral wall for the surface strip streakline flow splitter (4) stated, multiple described second
Material outlet (41) connects with the outside wall surface of the inner flow passage (31), and the surface strip streakline flow splitter (4) has connection
The transition runner (42) of the second material entrance (21) and multiple second material outlets (41)；
Extrusion die (5), is fixed at the lower end of the lower shell (2), is provided in the extrusion die (5) and institute
State the extrusion manifold (53) that inner flow passage (31) communicates.
2. the continuous extruder head of Blow Molded Articles surface according to claim 1 striped, it is characterised in that: more
A second material outlet (41) is circumferentially evenly arranged.
3. the continuous extruder head of Blow Molded Articles surface according to claim 1 striped, it is characterised in that: institute
The transition runner (42) stated includes at least one the lower flow channel groove being arranged on surface strip streakline flow splitter (4) lower end surface
(421), at least one upper runner groove (422) on surface strip streakline flow splitter (4) upper surface is set, through setting
The runner hole of the surface strip streakline flow splitter (4) and connection the upper runner groove (422) and the lower flow channel groove (421)
(423).
4. the continuous extruder head of Blow Molded Articles surface according to claim 3 striped, it is characterised in that: institute
It states and offers multiple lower flow channel grooves (421) on the lower end surface of surface strip streakline flow splitter (4), multiple described flows down
Road groove (421) radially even arrangement.
5. the continuous extruder head of Blow Molded Articles surface according to claim 4 striped, it is characterised in that: phase
The lower flow channel that lower flow channel groove (421) in lower flow channel groove (421) described in two adjacent positioned inside is narrower than positioned at outside is recessed
Slot (421).
6. the continuous extruder head of Blow Molded Articles surface according to claim 3 striped, it is characterised in that: institute
The upper surface for stating surface strip streakline flow splitter (4) offers multiple upper runner grooves (422), multiple upper runners
Groove (422) radially even arrangement.
7. the continuous extruder head of Blow Molded Articles surface according to claim 6 striped, it is characterised in that: phase
The lower flow channel that upper runner groove (422) in upper runner groove (422) described in two adjacent positioned inside is narrower than positioned at outside is recessed
Slot (421).
8. the continuous extruder head of Blow Molded Articles surface according to claim 3 striped, it is characterised in that: institute
The surface strip streakline flow splitter (4) stated is provided through multiple runner holes (423), multiple runner holes (423)
In be located inside runner hole (423) aperture be less than positioned at outside runner hole (423) aperture.
9. the continuous extruder head of Blow Molded Articles surface according to claim 1 striped, it is characterised in that: institute
The extrusion die (5) stated includes mouth mold (51), is coaxially set on the inside of the mouth mold (51) and mutually consolidates with the spreader (3)
Fixed core model (52) forms the extrusion manifold between the inner wall of the mouth mold (51) and the outside wall surface of the core model (52)
(53).
10. the continuous extruder head of Blow Molded Articles surface according to claim 1 striped, it is characterised in that:
The surface roughness of the upper and lower flow path groove is 0.4~0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811050837.1A CN109177112A (en) | 2018-09-10 | 2018-09-10 | The continuous extruder head of Blow Molded Articles surface striped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811050837.1A CN109177112A (en) | 2018-09-10 | 2018-09-10 | The continuous extruder head of Blow Molded Articles surface striped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109177112A true CN109177112A (en) | 2019-01-11 |
Family
ID=64915651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811050837.1A Pending CN109177112A (en) | 2018-09-10 | 2018-09-10 | The continuous extruder head of Blow Molded Articles surface striped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109177112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192823A (en) * | 2020-09-17 | 2021-01-08 | 江苏亨通光电股份有限公司 | Double-heterochromatic strip sheath and extrusion die thereof |
| CN114670422A (en) * | 2022-05-31 | 2022-06-28 | 张家港市意久机械有限公司 | Combined shunt shuttle in multicolor die head |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB997212A (en) * | 1962-12-31 | 1965-07-07 | Ici Ltd | The production of striped thermoplastic extrudates |
| CH675982A5 (en) * | 1987-04-15 | 1990-11-30 | Swiss Cab E A Schoen S A | Extruder head to make profiles with superficial coloured stripes |
| CN2763015Y (en) * | 2005-01-17 | 2006-03-08 | 湖南省华云机器厂 | Extrusion die for producing inner lining material of soft tube |
| CN101635190A (en) * | 2009-05-21 | 2010-01-27 | 沈群华 | Two-color cable sheath extruded mould with improved structure |
| CN101635191A (en) * | 2009-05-21 | 2010-01-27 | 沈群华 | Three-color wire cable jacket extrusion mold |
| CN103587094A (en) * | 2012-08-17 | 2014-02-19 | 张家港市龙华机械有限公司 | Two-cavity double-color strip die head |
| CN208682070U (en) * | 2018-09-10 | 2019-04-02 | 苏州金纬中空技术有限公司 | The continuous extruder head of Blow Molded Articles surface striped |
-
2018
- 2018-09-10 CN CN201811050837.1A patent/CN109177112A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB997212A (en) * | 1962-12-31 | 1965-07-07 | Ici Ltd | The production of striped thermoplastic extrudates |
| CH675982A5 (en) * | 1987-04-15 | 1990-11-30 | Swiss Cab E A Schoen S A | Extruder head to make profiles with superficial coloured stripes |
| CN2763015Y (en) * | 2005-01-17 | 2006-03-08 | 湖南省华云机器厂 | Extrusion die for producing inner lining material of soft tube |
| CN101635190A (en) * | 2009-05-21 | 2010-01-27 | 沈群华 | Two-color cable sheath extruded mould with improved structure |
| CN101635191A (en) * | 2009-05-21 | 2010-01-27 | 沈群华 | Three-color wire cable jacket extrusion mold |
| CN103587094A (en) * | 2012-08-17 | 2014-02-19 | 张家港市龙华机械有限公司 | Two-cavity double-color strip die head |
| CN208682070U (en) * | 2018-09-10 | 2019-04-02 | 苏州金纬中空技术有限公司 | The continuous extruder head of Blow Molded Articles surface striped |
Non-Patent Citations (1)
| Title |
|---|
| 韩宝仁 等: "《塑料异型材制造原理与技术》", 化学工业出版社, pages: 303 - 305 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192823A (en) * | 2020-09-17 | 2021-01-08 | 江苏亨通光电股份有限公司 | Double-heterochromatic strip sheath and extrusion die thereof |
| CN114670422A (en) * | 2022-05-31 | 2022-06-28 | 张家港市意久机械有限公司 | Combined shunt shuttle in multicolor die head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109177112A (en) | The continuous extruder head of Blow Molded Articles surface striped | |
| CN106863757A (en) | For blowing the die head with transparent liquid level line or colour bar line hollow plastic container | |
| CN208682070U (en) | The continuous extruder head of Blow Molded Articles surface striped | |
| CN101447261B (en) | Processing method of cable with totally colored surface and extrusion die | |
| CN106182679A (en) | The preparation method of the double-deck double-colored reinforced composite pipe of ribbing | |
| CN106738757A (en) | Double-layer composite pipe extruded mould improved structure | |
| CN103587094A (en) | Two-cavity double-color strip die head | |
| CN201195387Y (en) | Mould head of trilaminar extrusion-blow shaping apparatus | |
| CN106217815A (en) | Side feed auger formula continuous extrusion-blown modling die head | |
| CN204052415U (en) | An a kind of mould two-chamber extruding die for aluminum shaped material | |
| CN109352952B (en) | Storage type die head of multilayer co-extrusion blow molding machine | |
| CN106024134B (en) | The double-colored insulated cable core of more vittas and its manufacture mould and manufacture method | |
| CN206605764U (en) | For blowing the die head with transparent liquid level line or colour bar line hollow plastic container | |
| CN216860543U (en) | Shunt material flow channel extrusion die structure | |
| CN216420676U (en) | Hot extrusion die for improving welding quality of hollow industrial section | |
| CN211679347U (en) | Tubular aluminum profile extrusion die | |
| CN208035317U (en) | A kind of novel PVC die for drainage pipeline | |
| CN101716820A (en) | Surface composite layer raw material saving hollow die head core rod | |
| CN202318902U (en) | Mandril head for polycarbonate (PC) blow molding machine | |
| CN201320839Y (en) | Film blowing machine head | |
| CN206357602U (en) | Double-layer composite pipe extruded mould improved structure | |
| CN103358522B (en) | Durable mulching film-molding machine head | |
| CN107363118A (en) | A kind of preparation method of JLX-996 extruding die for aluminum shaped material | |
| CN201329665Y (en) | Double-covered material surface full-coated plastic section bar extruding mould | |
| CN205835927U (en) | Side feed auger formula continuous extrusion-blown modling die head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |