CN201538026U - Extruding device for product with odd-shaped cross section - Google Patents
Extruding device for product with odd-shaped cross section Download PDFInfo
- Publication number
- CN201538026U CN201538026U CN2009202202093U CN200920220209U CN201538026U CN 201538026 U CN201538026 U CN 201538026U CN 2009202202093 U CN2009202202093 U CN 2009202202093U CN 200920220209 U CN200920220209 U CN 200920220209U CN 201538026 U CN201538026 U CN 201538026U
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- Prior art keywords
- melt
- branch
- planetary gear
- runner
- gear pump
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- Expired - Lifetime
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 35
- 238000013016 damping Methods 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 239000000155 melt Substances 0.000 claims description 33
- 230000004931 aggregating effect Effects 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
- B29C48/37—Gear pumps
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
- B29C48/495—Feed-blocks
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92961—Auxiliary unit, e.g. for external melt filtering, re-combining or transfer between units
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an extruding device for a product with odd-shaped cross section, which belongs to the technical field of extrusion molding equipment. The extruding device mainly comprises an extruding system, a fused mass collecting device, a fused mass planetary gear pump, a fused mass planetary gear pump transmission and control device, a fused mass planetary gear pump temperature control device, branch flow channels, a branch flow channel temperature control device, a branch flow channel connector, a machine head body, a branch flow channel inside the machine head, a damping device, a molding flow channel, a neck ring mold, a neck ring mold adjusting device, and a machine head temperature control device; wherein each outlet of the fused mass planetary gear pump is connected with a branch flow channel, the product is connected with a branch flow channel connector after the branch flow channel group is determined according to the shape of the cross section of the product, and then molded after entering the machine head. The mode is easier to realize than the traditional requirement that the change of the cross section is realized through the change of the flow channel in the machine head, the change of the flow channel in the machine head plays the role of local fine adjustment, the fused mass flow quantity of each part is distributed before the fused mass enters the machine head, thereby overcoming the problems of high precision requirement and difficult realization during processing of a large-size machine head.
Description
Technical field
The utility model relates to extrusion molding equipment technology field, refers in particular to a kind of extruder and moulding process thereof of realizing the extrusion molding of large scale special-shaped goods.
Background technology
Extrusion molding occupies very consequence in plastic product forming processing industry.According to statistics, in plastic product forming processing, the output of extrusion moulding product ranks first.With other forming methods relatively, extrusion molding has serialization production, productivity ratio height, be widely used the characteristics with smail investments and quick rerurn.Along with plastic extruding forming broad application and development, the type of extruder is increasing.
Extruder high speed, high yield can make the investor obtain the bigger output and the repayment of great number with lower input.Extruder efficiently be mainly reflected in high production, low energy consumption, low manufacturing cost aspect.In function aspects, screw extruder not only is used for the extrusion molding and the mixing processing of macromolecular material, and its purposes has been widened fields such as food, feed, electrode, explosive, building materials, packing, paper pulp, pottery.
At present, extruding special-shaped products generally all is by extruder and specific head, calibrator, cooling device obtains, after extruding from the extruder front end by the melt after the extruder plasticizing, variation by the head inner flow passage carries out the transition to needed cross sectional shape, in head, after one section steady flow, leave the mouth mould of head again, enter into calibrator and cooling device obtains goods, because this form, cross section of fluid channel is different everywhere, the flowing pressure difference, very difficult as if the flowing velocity unanimity that will be controlled at the exit, the cost height repairs a die, sometimes need processing mold again, cause very big waste.This problem is when making large scale special-shaped cross section goods, because extrusion pressure is low, regulates difficulty more.
The utility model content
The purpose of this utility model provides a kind of extrusion molding apparatus that is fit to extrude large-scale macromolecule odd-shaped cross section goods, can eliminate the influence of extrusion plasticizing fluctuation to shaped article quality, and moulding odd-shaped cross section goods are realized easily.
The technical solution of the utility model is, odd-shaped cross section goods extrusion device, mainly comprise extrusion system, the melt aggregating apparatus, the melt planetary gear pump, pump drive of melt planetary gear and control device, melt planetary gear pump temperature control equipment, branch's runner, affluent-dividing channel temp control device, branch's flow path connector, handpiece body, branch's runner in the head, damping unit, molding runners, the mouth mould, mouth mould adjusting device, the head temperature control device, extrusion system comprises one or more extruder, the inlet of melt aggregating apparatus is connected with the outlet of the melt of extrusion system, the melt aggregating apparatus will compile from the melt of one or more extruder, the melt aggregating apparatus has one or more inlets, the melt aggregating apparatus has an outlet, the outlet of melt aggregating apparatus is connected with melt planetary gear pump intake, flow through its temperature of melt of melt planetary gear pump temperature control equipment control, the rotation of pump drive of melt planetary gear and control device control melt planetary gear pump middle gear, regulate rotating speed, the flow of control melt, melt is divided into some branches and flows out from melt planetary gear pump discharge behind the melt planetary gear pump, each melt planetary gear pump discharge is connected with branch's runner, determine that according to the goods cross sectional shape branch runner grouping back is connected with the branch flow path connector, the quantity of branch's runner is one in every group, two or a plurality of, branch's flow path connector connects branch's runner in the corresponding head, damping unit, a molding runners and a mouthful mould, control the temperature of the melt of each branch's runner by affluent-dividing channel temp control system, branch's runner is connected with handpiece body by its branch's flow path connector, damping unit is installed on the handpiece body, be positioned at the end of branch's runner, be used to provide and stop, make the melt pressure and the flow velocity that converge once more reach even, the mouth mould is installed in the exit of handpiece body, mouth mould adjusting device is used to regulate mouthful size of mould outlet gap, it between mouth mould and damping unit the molding runners of handpiece body, be used for transition, and make the further homogenizing of melt flows from damping unit to mouth mould runner gap.
The extrusion system of the utility model odd-shaped cross section goods extrusion device can be single screw extrusion machine, double screw extruder, multi-screw extruder, two-rotor continuous mixer, reciprocating screw extruder or mill extruder or two or more type combination wherein.
Melt planetary gear pump temperature control equipment add the thermal recovery heating rod. heating collar, heater strip or fluid media (medium).
The heating of runner temperature control system also can be adopted heating rod, heating collar, heater strip or fluid media (medium).
In order further to increase the controllability of branch's flowpath pressure, on branch's runner, cut-off equipment is set, make that the flow area of branch's runner is adjustable, and then regulate melt and enter pressure in the head, finally guarantee flow velocity unanimity on the mouth mould is along the line.
The expressing technique process of the utility model odd-shaped cross section goods extrusion device is: macromolecular material is after the loading hopper of extruder enters machine barrel, macromolecular material is plastifying under the effect of extruder temperature controller system and under the effect of the shearing force of screw rod rotation formation, the macromolecular material of fusing is that melt enters into the melt aggregating apparatus from the outlet of extruder outflow, melt enters into the melt planetary gear pump again through the melt aggregating apparatus, the melt that the melt planetary gear pump will compile is divided into uniform some branches, divide number to equal planetary number, each branch outlet of melt planetary gear pump connects branch's runner, each branch's runner length of flow is identical, to guarantee that melt arrives the speed of branch's runner inlet in the handpiece body and the balance of pressure, branch runner grouping back is connected with the branch flow path connector, the cross section of runner is corresponding with the goods cross section behind the melt process branch flow path connector, the quantity of branch's runner was many during the big position branch runner in cross section divided into groups, melt enters into branch's runner in the handpiece body through branch's flow path connector, under the stopping of damping unit, evenly distribute, melt flows through the head molding runners after crossing damping unit, transient process through molding runners, make melt with uniform flowing velocity and pressure current outlet mould, again through typing, cooling obtains goods.The bulk temperature of handpiece body temperature control equipment control head, it can't be eliminated along the junction of circumferentially segmentation or the influence that environmental change brings for the handpiece body temperature control equipment, can be according to the flow velocity and the flow difference of flow export mould melt, control the temperature of the melt of each branch's runner by affluent-dividing channel temp control system, because the flow behavior of macromolecular material is very big to dependence on temperature, mouth mould adjusting device is mainly used in the gap of regulating melt-flow outlet mould, and heat treated difference of water passage surface roughness difference and head and fluidity of molten difference can adapt to by the fine adjustments of melt temperature.
The utility model is owing to having adopted melt planetary gear pump and the pump drive of melt planetary gear thereof and control device, melt planetary gear pump temperature control equipment, melt enters flowing of head and is not subjected to directly influencing of extrusion system, if when requiring extrusion system that high output is provided, can select many middle-size and small-size extruders feed simultaneously for use, reduce and made processing and the adjusting cost that large-scale extruder brings.Because planetary gear pump shunting precision height, the melt planetary gear pump evenly is divided into multiply with one materials flow, to enter into branch's runner in the head with uniform pressure again after the multiply grouping, this mode realizes that than traditional variation of passing through the head inner flow passage variation in cross section is easy, the variation of head inner flow passage only plays local fine setting in the utility model, the melt material flow amount of each several part has assigned before entering head, even flow export mould under the auxiliary adjustment of damping unit and mouthful mould adjusting device, obtain high-quality goods, overcome the high-leveled and difficult difficult problem of precision prescribed that the machining large head faces to realize, the raising adjustment of output is got up also easily in the production process, and control remedies variation of ambient temperature to the independence of each section temperature by affluent-dividing channel temp control device, runner roughness difference, handpiece body material heat treatment difference, the adverse effect that melt flows difference etc. is brought.
Description of drawings
Fig. 1 is the vertical view of the utility model odd-shaped cross section goods extrusion device.
Fig. 2 is a goods legend of utilizing the utility model odd-shaped cross section goods extrusion device to obtain.
Among the figure: 1. pump drive of melt planetary gear and control device, 2. extrusion system, 3. melt aggregating apparatus, 4. melt planetary gear pump temperature control equipment, 5. melt planetary gear pump, 6. branch's runner, 7. affluent-dividing channel temp control device, 8. branch's flow path connector, 9. handpiece body, 10. branch's runner in the head, 11. damping unit, 12. molding runners, 13. mouthfuls of moulds, 14. mouthful mould mounting screw, 15. mouthful mould adjustment screw, 16. head temperature control device, 17. branch's runner inlets, 18. melt planetary gear pump discharge, 19. melt planetary gear pump intakes.
The specific embodiment
Figure 1 shows that the utility model odd-shaped cross section goods extrusion device extrudes an embodiment of similar goods shown in Figure 2.The utility model odd-shaped cross section goods extrusion device, mainly comprise pump drive of melt planetary gear and control device 1, extrusion system 2, melt aggregating apparatus 3, melt planetary gear pump temperature control equipment 4, melt planetary gear pump 5, branch's runner 6, affluent-dividing channel temp control device 7, branch's flow path connector 8, handpiece body 9, branch's runner 10 in the head, damping unit 11, molding runners 12, mouth mould 13, mouth mould adjusting device, head temperature control device 16, mouth mould adjusting device comprises a mouthful mould mounting screw 14, mouth mould adjustment screw 15, the inlet of melt aggregating apparatus 3 is connected with the melt outlet of extrusion system 2, melt aggregating apparatus 3 will compile from the melt of one or more extruder, melt aggregating apparatus 3 has one or more inlets, melt aggregating apparatus 3 has an outlet, the outlet of melt aggregating apparatus 3 is connected with melt planetary gear pump intake 19, flow through its temperature of melt of melt planetary gear pump temperature control equipment 4 control, the rotation of pump drive of melt planetary gear and control device 1 control melt planetary gear pump 5 middle gears, regulate rotating speed, the flow of control melt, melt is divided into some branches and flows out from melt planetary gear pump discharge 18 behind melt planetary gear pump 5, each melt planetary gear pump discharge 18 of melt planetary gear pump 5 connects branch's runner 6, the affluent-dividing channel temp control system 7 that is installed on branch's runner 6 is regulated the melt temperature of flowing through herein, uppermost two branch's runners 6 are connected with branch's flow path connector 8 of a band fork, remaining branch's runner is connected with straight-through branch flow path connector 8, each branch's flow path connector 8 is connected with handpiece body 9, the inlet of melt on handpiece body 9 is branch's runner inlet 17, damping unit 11 is installed on the handpiece body 9, be positioned at the end of head branch runner 10, be used to provide and stop, make the melt pressure and the flow velocity that converge once more reach even, the temperature of head temperature control device 16 control handpiece bodies 9, mouth mould 13 is installed in the exit of handpiece body 9, a mouth mould mounting screw 14 and a mouthful mould adjustment screw 15 are distributed on mouthful mould 13, unclamp a mouthful mould mounting screw 14 when regulating mouth mould 13 earlier, mouth mould adjustment screw 15 drives mouthful moulds 13, and trace is mobile up or down, after finishing, adjustment tightens a mouthful mould mounting screw 14 again, adjusting device is used to regulate the size of mouthful mould 13 outlet gaps, it between mouth mould 13 and damping unit 11 molding runners 12 of handpiece body, be used for transition, and make the further homogenizing of melt flows from damping unit 11 to mouth mould 13 runner gaps.The melt planetary gear has six planetary gears in the present embodiment, and branch's runner 6 is six, and branch's flow path connector 8 is five, branch's runner 10 is five in the head, damping unit 11 comprises damping sheet and mounting screw, and damping sheet is screwed on handpiece body, and molding runners is separated into two parts also.Shown in Figure 1 in handpiece body 9 be about two parts, be illustrated as the top of having removed handpiece body 9.Control the temperature of the melt of each branch's runner 6 according to the mobility status of mouth mould 13 place's melts by affluent-dividing channel temp control device 7, for example when certain section melt flow rate is slow, improve the melt control temperature of corresponding therewith branch's runner 6.Because programming rate is slower, slowly carries out during adjusting, waiting flows mediates when stablizing again.13 places can increase some sensors at the mouth mould, and the adjustment formation closed-loop control with affluent-dividing channel temp control device 7 is carried out conciliation automatically.
Claims (3)
1. odd-shaped cross section goods extrusion device, mainly comprise extrusion system, the melt aggregating apparatus, the melt planetary gear pump, pump drive of melt planetary gear and control device, melt planetary gear pump temperature control equipment, branch's runner, affluent-dividing channel temp control device, branch's flow path connector, handpiece body, branch's runner in the head, damping unit, molding runners, the mouth mould, mouth mould adjusting device, the head temperature control device, the melt aggregating apparatus has entrance and exit, the inlet of melt aggregating apparatus is connected with the outlet of the melt of extrusion system, the outlet of melt aggregating apparatus is connected with melt planetary gear pump intake, the rotation of pump drive of melt planetary gear and control device control melt planetary gear pump middle gear, the control of melt planetary gear pump temperature control equipment is arranged in the temperature of melt planetary gear pump melt, melt is divided into some branches and flows out from melt planetary gear pump discharge behind the melt planetary gear pump, each melt planetary gear pump discharge connects branch's runner, it is characterized in that: branch runner grouping back is connected with the branch flow path connector, the quantity of each branch runner is one, two or a plurality of, each branch's flow path connector and the corresponding interior branch of head runner, damping unit, molding runners and mouthful mould connect, the affluent-dividing channel temp control system that is installed on branch's runner is regulated the melt temperature of flowing through herein, branch's runner is connected with handpiece body by its branch's flow path connector, damping unit is installed on the handpiece body and is positioned at the end of head branch runner, the mouth mould is installed in the exit of handpiece body, mouth mould adjusting device is regulated a mouthful mould outlet gap, the temperature of head temperature control device control handpiece body is the molding runners of handpiece body between mouth mould and damping unit.
2. odd-shaped cross section goods extrusion device according to claim 1 is characterized in that: extrusion system adopts single screw extrusion machine, double screw extruder, multi-screw extruder, two-rotor continuous mixer, reciprocating screw extruder or mill extruder or two or more type combination wherein.
3. odd-shaped cross section goods extrusion device according to claim 1 is characterized in that: on branch's runner cut-off equipment is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202202093U CN201538026U (en) | 2009-10-26 | 2009-10-26 | Extruding device for product with odd-shaped cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202202093U CN201538026U (en) | 2009-10-26 | 2009-10-26 | Extruding device for product with odd-shaped cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201538026U true CN201538026U (en) | 2010-08-04 |
Family
ID=42589480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202202093U Expired - Lifetime CN201538026U (en) | 2009-10-26 | 2009-10-26 | Extruding device for product with odd-shaped cross section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201538026U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039656A (en) * | 2009-10-26 | 2011-05-04 | 青岛科技大学 | Extruding device of irregular cross section product |
| CN103568269A (en) * | 2012-08-10 | 2014-02-12 | 宁波康润机械科技有限公司 | Irregular-cross-section plastic product extrusion device |
| CN105392376A (en) * | 2013-07-17 | 2016-03-09 | 日本烟草产业株式会社 | Rod member extrusion-molding system and extrusion-molding method therefor |
-
2009
- 2009-10-26 CN CN2009202202093U patent/CN201538026U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039656A (en) * | 2009-10-26 | 2011-05-04 | 青岛科技大学 | Extruding device of irregular cross section product |
| CN102039656B (en) * | 2009-10-26 | 2013-01-09 | 青岛科技大学 | Extruding device of irregular cross section product |
| CN103568269A (en) * | 2012-08-10 | 2014-02-12 | 宁波康润机械科技有限公司 | Irregular-cross-section plastic product extrusion device |
| CN105392376A (en) * | 2013-07-17 | 2016-03-09 | 日本烟草产业株式会社 | Rod member extrusion-molding system and extrusion-molding method therefor |
| CN105392376B (en) * | 2013-07-17 | 2017-11-21 | 日本烟草产业株式会社 | The extrusion molding system and its extruding forming method of rod unit |
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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: 20100804 Effective date of abandoning: 20091026 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100804 Effective date of abandoning: 20091026 |
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| RGAV | Abandon patent right to avoid regrant |