CN101837632B - Differential type extruder and molding technique thereof - Google Patents
Differential type extruder and molding technique thereof Download PDFInfo
- Publication number
- CN101837632B CN101837632B CN200910080123A CN200910080123A CN101837632B CN 101837632 B CN101837632 B CN 101837632B CN 200910080123 A CN200910080123 A CN 200910080123A CN 200910080123 A CN200910080123 A CN 200910080123A CN 101837632 B CN101837632 B CN 101837632B
- Authority
- CN
- China
- Prior art keywords
- extrusion
- planetary gear
- extruder
- differential type
- gear pump
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000000465 moulding Methods 0.000 title claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 72
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 230000008676 import Effects 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 8
- 235000012438 extruded product Nutrition 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 24
- 239000000047 product Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000011161 development Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- B29C48/36—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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/435—Sub-screws
- B29C48/44—Planetary screws
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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 invention relates to a differential type extruder and a molding technique thereof. The differential type extruder mainly comprises an extrusion system and a measuring and shunting system, the extrusion system is just like a conventional extruder, the measuring and shunting system comprises a planetary gear pump, a coupling, a rotation controller and a temperature controller, and is arranged at the outlet of the extrusion system, the output shaft of the rotation controller is connected with a drive gear shaft of the planetary gear pump through the coupler, the drive gear shaft drives a drive gear and small gears to rotate, the planetary gear pump is provided with a main inlet and a plurality of outlets, each inlet branch is provided with a corresponding outlet after passing through the planetary gear pump, and the outlets are respectively connected with a corresponding head. The differential type extruder and the molding technique thereof not only can utilize an extruder with a plurality of heads to simultaneously produce same or different products in batches, but also can produce miniature extruded products in batches and at low cost, and moreover, the differential type extruder and the molding technique have the advantages of high plasticizing capacity, high mixing performance and high control measurement precision.
Description
Technical field
The present invention relates to extrusion molding equipment technology field, refer in particular to a kind of extruder and moulding process thereof that the extrusion moulding product and the miniature extrusion moulding product of identical or different kind are produced in batches simultaneously realized.
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 have serialization production, productivity ratio high, 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.
Along with progress of science and technology, product constantly develops to microminiaturized direction, thereby has produced MEMS (MEMES) technology of new century industry demand.End product quality is unit of account with the milligram, and the finished product physical dimension is the micro shaping technology of linear module with the micron, is an emerging advanced manufacturing technology; The micro shaping technology becomes one of world's The Study of Manufacturing Technology focus with the advantage that the low-cost large-scale production of easy realization has the precise fine size parts.In recent years, the micro shaping technical development is very fast, and its goods are widely used in a plurality of fields such as automation, medical treatment, space flight, and vast potential for future development is arranged.In the micro shaping technical field; The research of miniature extrusion technology is started in late 1990s; Compare with the micro-injection moulding forming technique and to start late, also existing a large amount of technical problems at present need study, but should technology show plurality of advantages such as precision height, production efficiency height.Simultaneously, along with further developing of MEMS technology, make miniature extrusion technology become an important branch of micro shaping technology.The research of carrying out this respect abroad early, people such as the Y Saotome of Japanese Gunma university and A Inoue conducted a research in 1989 and are suitable for the new material of little extrusion molding, used little extrusion technology to have produced modulus be little gear of 10 μ m in 1994.The domestic research of carrying out this respect also rarely has report.Adopting extrusion technology to make little gear compares with adopting the little gear of the direct manufacturing of LIGA (the deep model method of Lithographie Gaivanoforming Abforming X-ray) technology; Have efficient height, short, low cost and other advantages of cycle; Product can directly be applied among the MEMS, as miniature actuator.
Miniature extrusion technology is a new direction of extrusion equipment development, has started the new way of fine structure part and system's manufacturing research, and its outstanding advantage is exactly to realize in enormous quantities, the low-cost production of high accuracy, high fine parts.Compare with extrusion technology traditional, routine, miniature extrusion technology has all proposed demands of different to aspects such as moulding material, moulding process and formers.At the beginning of the miniature extrusion technology development, there is not special-purpose extruder to be used for miniature manufacturing of extruding part.There is the difficulty that is difficult to imagine in many general device Design and Machining processes in the research and development of miniature extruder, and the key of equipment development is that reinforced, exhaust, the realization low temperature of miniature extruder extrudes the solution of problem such as conveying.
Along with the continuous development of extrusion technology, constantly increasing of extruder type is new, and novel extrusion technology is brought into play its important function day by day; Simultaneously, along with the market sustainable growth of fine microstructure extrusion moulding product, the demand of miniature extruder is increased year by year.Since miniature goods extrude output require low, at present a multi-cavity mold technology that adopt more, for example an extruder is extruded two or more goods simultaneously, is extruding the not high occasion of required precision, can extrude 16 chambeies by a mould.But because the influence of each cavity mould mismachining tolerance and expressing technique parameter fluctuation; The precision of goods is difficult to guarantee; A certain chamber goes wrong, and all chambeies are cisco unity malfunction all, and the balance in order to keep-up pressure; The cross section of multi-cavity mold institute fabricated product is identical, and the different goods in cross section are difficult to stable extruding.
Summary of the invention
The purpose of this invention is to provide a kind of extruder and the technology thereof that can produce the extrusion moulding product and the miniature extrusion moulding product of identical or different kind simultaneously in batches, separate between each chamber, and the extruded product precision is high.
Differential type extruder of the present invention mainly is made up of extrusion system and metering separate system, and extrusion system is identical with conventional extruder, mainly comprises screw rod, machine barrel, feeding device, transmission system and heating and cooling system; The metering separate system comprises planetary gear pump, shaft coupling, control device for pivoting and attemperating unit; The metering separate system is arranged on the extrusion system port of export, is used for conveying, shunting, supercharging and the metering of high-temperature fusant, and the control device for pivoting output shaft links to each other through the driving gear shaft of shaft coupling with the planet gear pump; Driving gear shaft drives driving gear and rotates; The driving gear driving pinion rotates, and planetary gear pump has a main import and a plurality of outlet, and main import links to each other with a plurality of import branch; There is a corresponding outlet in each import branch through behind the planetary gear pump; Main import is connected with the outlet of extrusion system, and a plurality of outlets are connected with corresponding head respectively, and the quantity of import branch and outlet is identical with the quantity of pinion; Attemperating unit is arranged on around the pump housing of planetary gear pump; Attemperating unit heats planetary gear pump and controls its temperature, can smooth and easy circulation in pump to guarantee plastic melt, owing to transmit melt through gear meshing; And one materials flow of extruder has been divided into multiply through planetary gear pump; Can seldom can regulate planetary rotating speed from a flow that exports the polymer melt that flows out, can accurately control so extrude output through regulating control device for pivoting.
The extrusion system of differential type extruder of the present invention can adopt the extrusion system of single screw rod or twin-screw or multi-screw extruder, also can adopt the extrusion system of reciprocating screw extruder or mill extruder.
The attemperating unit of the metering separate system of differential type extruder of the present invention can adopt heating rod, heating collar, heater strip, electromagnetic heater or circulatory mediator.Adopt heating rod promptly to process the hole of placing heating rod, the anti-hole that places of heating rod at the pump housing; Adopt heating collar or electromagnetic heater promptly to select size suitable heating circle or electromagnetic heater to be wrapped on the pump housing; Adopt heater strip promptly to embed heater strip at the pump housing; Adopt circulatory mediator promptly on the pump housing, to process some holes, the medium that satisfies design temperature flows in the hole.
The head that a plurality of outlets of the metering separate system of differential type extruder of the present invention connect can be the same or different; Can change according to the needs of goods, each head can unify to carry out temperature control, also can control respectively; In extrusion; According to cross section briquetting pressure requirement, regulate the viscosity of controlling melt through head temperature, and then control its flowability.
The extruding-out process process that differential type extruder of the present invention is realized is its extrusion with the difference of conventional extruding-out process process.In extrusion, behind the fusion plastification, the outlet via extrusion system under pressure gets in the main import of the planetary gear pump that measures separate system plastics process extrusion system, gets in the pump housing respectively via import branch again in machine barrel; Attemperating unit is controlled at proper temperature to the planetary gear pump heating and with it, and to guarantee that plastic melt therein can be fully mobile under molten condition, the control device for pivoting of metering separate system drives driving gear shaft through shaft coupling and drives master gear and pinion work; Promptly drive the planetary gear pump work, plastic melt flows out from outlet through planetary positive battery metering effect and gets into the head, and each head can unify to carry out temperature control; Also can control respectively; In extrusion,, control the viscosity of melt through adjustment according to cross section briquetting pressure requirement; And then the control fluidity of molten, accomplish the extrusion of differential expression extrusion molding thus.
The present invention can adopt the extrusion system of conventional extruder, therefore can directly improve common extruder, and especially small-sized extruder adds the function that the metering separate system can be realized differential type extruder.
The position of arranging of differential type extruder of the present invention is consistent with conventional extruder, and citation form horizontal and vertical and that both combine is arranged.Extrusion system can be provided with according to the entrance location of the planetary gear pump that measures separate system, also can change the import and export position of metering separate system according to the locational requirement of extrusion system and head.
Use differential type extruder of the present invention to carry out the extrusion molding of miniature product,, therefore can realize the advantage that plastics capacity is big, plasticizing effect good, the batch mixing performance is high, can satisfy the requirement of little extruding-out process again because it adopts the extrusion system of conventional extruder; And there is not the restriction that small size screw rod difficulty of processing is big, service life, the finite sum fusion time was grown; In addition; Can realize the differential function more than a minute through planetary gear pump; Realize using large-scale extruder to replace the function of many small-sized extruders, the purpose of carrying out the extrusion molding of miniature goods in enormous quantities both can utilize an extruder to cooperate a plurality of identical heads to produce identical goods simultaneously in batches; Because each branch's pressure is determined by planetary gear; Independent each other, melt pressure is high and stable, so can utilize an extruder to cooperate a plurality of different types of heads to produce different types of goods simultaneously.The adjustment of single branch in the extrusion does not influence normally extruding of other branch, and the planetary gear pump with function of measuring can improve the precision of control metering.
The outstanding advantage of differential type extruder of the present invention is exactly the advantage that can combine conventional extruder, breaks through a series of defectives of existing little extruder through introducing the metering separate system, realizes in enormous quantities, the low-cost production of high accuracy, high meticulous extrusion moulding product.Especially be applicable to miniature and have the extrusion molding aspect of the section bar of the geometry that labyrinth for example comprises the single or multiple combination of square, rectangle, circle and oval in shape.
Description of drawings
Fig. 1 is the structural principle sketch map of differential type extruder of the present invention.
Fig. 2 is the enlarged diagram of the metering separate system of differential type extruder of the present invention
Fig. 3 is the axial sketch map of the planetary gear pump of differential type extruder of the present invention, from figure, can observe the distribution of melt flow channel.
Among the figure: 1. extrusion system, 2. metering separate system, 1-1. screw rod, 1-2. machine barrel, 1-3. heating and cooling system; 1-4. feeding device, 1-5. transmission system, 2-1. head, 2-2. planetary gear pump, 2-3. attemperating unit; 2-4. bearing, 2-5. shaft coupling, 2-6. control device for pivoting, 2-7. master's import, 2-8. import branch; 2-9. master gear, 2-10. pinion, 2-11. driving gear shaft, 2-12. outlet.
The specific embodiment
Differential type extruder of the present invention such as Fig. 1, Fig. 2, shown in Figure 3; Mainly form by extrusion system (1) and metering separate system (2); Extrusion system (1) is identical with conventional extruder, mainly comprises screw rod (1-1), machine barrel (1-2), heating and cooling system (1-3), feeding device (1-4) and transmission system (1-5); Metering separate system (2) comprises planetary gear pump (2-2), bearing (2-4), shaft coupling (2-5), control device for pivoting (2-6), attemperating unit (2-3); Metering separate system (2) is arranged on extrusion system (1) port of export; Control device for pivoting (2-6) output shaft links to each other through the driving gear shaft (2-11) of shaft coupling (2-5) with planet gear pump (2-2); Planetary gear pump (2-2) has a main import (2-7) and a plurality of outlet (2-12); Main import (2-7) links to each other with a plurality of import branches (2-8); Behind each import branch (2-8) process planetary gear pump (2-2) a corresponding outlet (2-12) is arranged, the outlet of the same extrusion system of main import (2-7) (1) is connected, and a plurality of outlets (2-12) are connected with corresponding head (2-1) respectively; Fig. 1-shown in Figure 3 has adopted one to advance six planetary gear pumps (2-2) that go out, and it has corresponding six outlets (2-12) of a main import (2-7); Attemperating unit (2-3) is arranged on around the pump housing of planetary gear pump.
Differential type extruder molding process of the present invention is its extrusion with the difference of conventional extruding-out process process.In extrusion; Plastics get in the machine barrel (1-2) through the feeding device (1-4) of extrusion system (1); The rotating speed of transmission system (1-5) control screw rod (1-1); Plastics fusion plastification under screw rod (1-1) and heating and cooling system (1-3) effect, the plastics of fusion are got in the main import (2-7) of the planetary gear pump (2-2) that measures separate system (2) by the outlet of extrusion system (1), get in the pump housing respectively via import branch (2-8) again; The control device for pivoting (2-6) of metering separate system (2) drives driving gear shaft (2-11) through shaft coupling (2-5) and drives master gear (2-9) and pinion (2-10) work; Plastic melt flows out from outlet through planetary positive battery metering effect, gets into moulded products in the head (2-1); Accomplish the extrusion of differential expression extrusion molding thus; Extrusion needs attemperating unit (2-3) to planetary gear pump (2-2) heating and control simultaneously, to guarantee that plastic melt therein can be fully mobile under molten condition.
Claims (6)
1. differential type extruder is characterized in that: mainly be made up of extrusion system and metering separate system, extrusion system is identical with conventional extruder, mainly comprises screw rod, machine barrel, feeding device, transmission system and heating and cooling system; The metering separate system comprises planetary gear pump, shaft coupling, control device for pivoting and attemperating unit; The metering separate system is arranged on the extrusion system outlet, and the output shaft of control device for pivoting links to each other through the driving gear shaft of shaft coupling with the planet gear pump, and driving gear shaft drives driving gear and rotates; The driving gear driving pinion rotates; Planetary gear pump has a main import and a plurality of outlet, and main import links to each other with a plurality of import branch, and there is a corresponding outlet in each import branch through behind planetary gear pump; Main import is connected with the outlet of extrusion system; A plurality of outlets are connected with corresponding head respectively, and the quantity of import branch and outlet is identical with the quantity of pinion, and attemperating unit is arranged on around the pump housing of planetary gear pump.
2. differential type extruder according to claim 1 is characterized in that: its extrusion system adopts the extrusion system of single screw rod or twin-screw or multi-screw extruder,
3. differential type extruder according to claim 1 is characterized in that: its extrusion system adopts the extrusion system of reciprocating screw extruder or mill extruder.
4. differential type extruder according to claim 1 is characterized in that: the attemperating unit of its metering separate system is with heating rod, heating collar, heater strip, electromagnetic heater or circulatory mediator.
5. differential type extruder according to claim 1 is characterized in that: inequality with the head that a plurality of outlets of metering separate system are connected, the temperature of each head is controlled respectively.
6. the moulding process that utilizes the described differential type extruder of claim 1 to be realized; It is characterized in that: plastics get in the machine barrel through the feeding device of extrusion system; The rotating speed of transmission system control screw rod, plastics fusion plastification under screw rod and heating and cooling system effect, the plastics of fusion are got in the main import of the planetary gear pump that measures separate system by the outlet of extrusion system; Get in the pump housing respectively via import branch again; Attemperating unit is controlled at proper temperature to the planetary gear pump heating and with it, and the control device for pivoting of metering separate system drives driving gear shaft through shaft coupling and drives master gear and pinion work, and plastic melt flows out from outlet through planetary gear and gets into the head; Each head carries out temperature control; According to cross section briquetting pressure requirement, regulate the viscosity of controlling melt through head temperature, accomplish the extrusion of differential expression extrusion molding thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910080123A CN101837632B (en) | 2009-03-20 | 2009-03-20 | Differential type extruder and molding technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910080123A CN101837632B (en) | 2009-03-20 | 2009-03-20 | Differential type extruder and molding technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101837632A CN101837632A (en) | 2010-09-22 |
| CN101837632B true CN101837632B (en) | 2012-10-17 |
Family
ID=42741413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910080123A Expired - Fee Related CN101837632B (en) | 2009-03-20 | 2009-03-20 | Differential type extruder and molding technique thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101837632B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419294A (en) * | 2013-09-08 | 2013-12-04 | 北京化工大学 | Novel millstone extruder used for blending trace amount of materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987104A (en) * | 2005-12-22 | 2007-06-27 | Vmi-Az挤塑设备有限公司 | Planetary gear pump |
| CN201357554Y (en) * | 2009-03-20 | 2009-12-09 | 北京化工大学 | Differential-type extruder |
-
2009
- 2009-03-20 CN CN200910080123A patent/CN101837632B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987104A (en) * | 2005-12-22 | 2007-06-27 | Vmi-Az挤塑设备有限公司 | Planetary gear pump |
| CN201357554Y (en) * | 2009-03-20 | 2009-12-09 | 北京化工大学 | Differential-type extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101837632A (en) | 2010-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105751459B (en) | The Coinjection molding apparatus of spherical rotor | |
| CN101733916B (en) | Fusant differential precise injection molding machine | |
| CN116214880B (en) | Mechanical device for synchronously producing multi-root-single multicolor tubular objects and modified material particles by adopting multiple feed inlets | |
| CN112140500A (en) | Polyamide hot melt adhesive rod manufacturing process | |
| CN101837632B (en) | Differential type extruder and molding technique thereof | |
| CN103264492B (en) | The injection device of the miniature injection machine of differential gearing and method | |
| CN201357554Y (en) | Differential-type extruder | |
| CN103411053A (en) | Plastic micro-channel pipeline structure, and preparation method and device thereof | |
| CN101514075A (en) | Process and method for producing lens with multi-prescription by one mould | |
| CN201538025U (en) | Multi-product extrusion molding device | |
| CN201296027Y (en) | Fusant differential coefficient precise injection molding machine | |
| CN202318726U (en) | Miniature melt injection molding device | |
| CN201538026U (en) | Extruding device for product with odd-shaped cross section | |
| CN205685629U (en) | Integral type injection machine that can be mixed and modified | |
| CN205989497U (en) | A kind of quincunx plastic pipe molding extruder | |
| CN201538027U (en) | Large-scale polymer product extrusion molding device | |
| CN202462889U (en) | Manufacturing equipment of plane display backlight functional module | |
| CN205167405U (en) | Intelligence control by temperature change formula injection mold | |
| CN102039657B (en) | Extrusion moulding apparatus for large-scale macromolecular product and process thereof | |
| CN213733330U (en) | Novel automatic temperature control device of double-screw plastic extruding machine | |
| CN205097493U (en) | Single screw extruder with automated inspection and calibration function | |
| CN104085077A (en) | Injection molding machine | |
| CN114506017A (en) | Multi-glue-injection-port mold | |
| CN209832459U (en) | Nut injection mold | |
| CN101670658B (en) | Plastic bottle preform extrusion forming machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |