CN1417014A - Polymer melt mixing and conveying equipment - Google Patents
Polymer melt mixing and conveying equipment Download PDFInfo
- Publication number
- CN1417014A CN1417014A CN02149936A CN02149936A CN1417014A CN 1417014 A CN1417014 A CN 1417014A CN 02149936 A CN02149936 A CN 02149936A CN 02149936 A CN02149936 A CN 02149936A CN 1417014 A CN1417014 A CN 1417014A
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- mixing
- axle
- pump
- mix
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
- B01F27/2722—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with ribs, ridges or grooves on one surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
- B29B7/425—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with screw surrounded by a casing provided with grooves or cavities
-
- 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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/387—Plasticisers, homogenisers or feeders comprising two or more stages using a screw extruder and a gear pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1143—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Rotary Pumps (AREA)
Abstract
The presen invention relates to a polymer melt mixing and advancing unit, comprises a mixer with a rotating mixer shaft in a mixing chamber, and a pump with a drive shaft for driving at least one advancing medium. According to the present invention, the mixer shaft has a mixing section in the chamber and a drive section outside the chamber, and the pump drive shaft is a hollow cylindrical unit penetrated by the mixer shaft drive section, thus the mixer shaft and the pump drive shaft can be drived dividually.
Description
Technical field
The present invention relates to be used to mix device with the transferring polymer melt according to claim 1 as described in the preamble.
Background technology
A kind of such device is known by WO94/19516 for example.
Known devices comprises a blender and a pump, and they are combined into a complete set of equipments.Wherein the mixing axle of blender is driven by the driving shaft with pump.Mix of the transmission power decision of the rotating speed of axle, thereby mixing resultant depends on conveying device indirectly by pump.Total stream of polymer melt mixes and and then is divided into by means of pump by means of the mixing axle of rotation in mixing chamber and respectively shunts and deliver to a plurality of spinning-nozzles in known devices.This moment, particularly importantly each is shunted was equal homogenising, so that in back to back further processing, under the situation of cotton mill, keeps equal product quality.Production for the polymer melt that dyes must mix very equably especially.Because the amount of only small so-called colour masterbatch just can make total melt-flow add dyeing.
In this known devices, therefore mixed effect depends on the rotating speed of mixing axle and the length of mixing chamber.In order than the slow-speed of revolution time, to obtain strong mixing, when big output, mixing chamber must be designed very long and thereby mix axle and also will design very longly.
Summary of the invention
The objective of the invention is further to constitute the device of the described type of beginning, its transmission power with pump is had nothing to do can thorough consumingly mixing polymer melts under the situation of the compact structure as far as possible of blender.
This purpose reaches by the device of the feature with claim 1.
Favourable further being formed in all dependent claims of the present invention illustrates.
Compact conformation the invention is characterized in, though can be realized a speed discrepancy between mixing axle and driving shaft.To this, mix axle and be divided into the drive part that a mixing portion and that is arranged at mixing chamber inside stretches out from mixing chamber.The drive part of the mixing axle that stretches out from mixing chamber passes the driving shaft of not counting into hollow cylindrical of pump, so that diaxon is led to a driving side jointly.
Can drive with predetermined speed discrepancy in order to make driving shaft and to mix axle.Be connected with drive unit by a speed changer with the drive part that mixes axle according to particularly advantageous further formation driving shaft of the present invention.Speed changer for example can be made of a planet gear drive, so that calibration driving shaft and the one or more speed ratios that mix between the axle.
Even, speed changer is preferably designed to the rotating speed that the rotating speed that makes stirring is higher than driving shaft in order to obtain strong thorough mixing under the situation that has short mixing portion at the mixing axle.Polymer melt can irrespectively mix with higher strong degree with the transmission power of pump whereby, and this can cause the very high dyeing uniformity of polymer melt especially when making the fiber of dyeing.
But also there is such possibility, two drive units promptly are set, so that drive driving shaft respectively independently of one another and mix axle.Whereby reach aspect the mixing of polymer melt and the conveying also will be higher changeability, not necessarily will adopt two to overlap independently unit this moment.
By means of speed discrepancy, the drive part that mixes axle feeding driving shaft inside has the peripheral speed higher than driving shaft.In order to seal the gap suggestion between two relative kinematic axis, the drive part that mixes axle is fitted in the internal diameter of driving shaft on diameter can form a clearance seal.Guarantee cooling by means of the axle head that stretches out from blender and pump at driving side, harden and cause a leak free basically sealing thereby be pressed into the polymer melt gap in by surrounding environment.
May to mix the melt particle that occurs between the drive part of axle and the driving shaft at driving side in order admitting reliably during entry into service, to be preferably designed to jar shape according to the drive end of a favourable further formation driving shaft of the present invention with annular lip at device.Therefore under comprising the situation of the driving side that protrudes upward, vertically extending driving shaft guarantees to stop possible melt particle.
In order to improve sealing effectiveness,, driving shaft or the drive part that mixes axle are constituted back the guide screw line according to another favourable further formation suggestion of the present invention.The helical pitch of returning the guide screw line is designed so that to produce conveying effect to the mixing chamber direction with respect to the rotation of axle when mixing axle or drive shaft turns.
For the transferring polymer melt, the conveying device of pump preferably constitutes a gear pair.Wherein the employing of especially a plurality of gear pairs is particularly suitables, so that the rising melt-flow that will before mix is divided into a plurality of shuntings.One center sun gear is installed on the circumference of driving shaft this moment.
According to particularly preferred further formation of the present invention, mix axle and on the circumference of mixing portion, have many mixing grooves, its with the locular wall of mixing chamber interior mix the groove co-operating.All grooves are overlapping partly, otherwise so that melt from all grooves of groove system of rotation alternately enter fixing groove system all grooves and.Reach the strong distribution of melt or thoroughly mixing whereby.
Description of drawings
Followingly several embodiment are described in more detail with reference to accompanying drawing.Wherein:
Fig. 1 is the cutaway view of first embodiment of device of the present invention;
Fig. 2 is the cutaway view of second embodiment of device of the present invention;
Fig. 3 is the simplification vertical view of the embodiment of Fig. 2.
The specific embodiment
Simplify the cutaway view of first embodiment that device of the present invention is shown among Fig. 1.This device comprises a blender 1 and a pump 2.Blender 1 has housing 3, and end face connects pump 2 thereon.Housing 3 has a melt inlet 4 at its end face opposite with pump 2.Melt inlet 4 leads to mixing chamber 5, and the latter extends to opposite end face always.One mixes axle 6 built-in functions at mixing chamber 5.Mix axle 6 and comprise a mixing portion 7 and a drive part 8.The mixing portion 7 that mixes axle 6 extends along the whole length of mixing chamber 5 basically.Mixing portion 7 and mixing chamber 5 fit in to make between mixing portion 7 and mixing chamber 5 and form less clearance.On the circumference of mixing portion, be shaped on many mixing grooves 9 that radially extend basically.In the locular wall of mixing chamber 5, be provided with many mixing grooves 10 that radially extend basically equally, wherein local overlapping with the fixing mixing groove 10 that is arranged in the mixing chamber 5 with the mixing groove 9 that mixes axle 6 rotations.
The drive part 8 of mixing axle 6 stretches out from mixing chamber 5 and passes pump 2 up to driving side 32.For this reason the cover plate 16 on the housing that is connected in blender 13 of pump 2 have one with the driving perforate 33 of mixing chamber 5 concentric locatings.
Be shaped on an access road 11 in lower cover 16, its mixing chamber 5 with blender 1 is communicated in an entrance area of pump 2.Pump 2 has an exit passageway 19 in the pressure span, as shown in phantom in Figure 1.
On lower cover 16, a conveying device 13 is arranged on the inside of shell plates 17 with the form of a gear pair.Conveying device 13 is made of gear 14 and 15.Gear 15 firmly is connected with driving shaft 12.Gear 15 is installed on the circumference of driving shaft 12 for this reason.Driving shaft 12 is rotatably supported in the upper cover plate 18 and with its free end and reaches driving side 32 always from pump 2.12 one-tenth hollow cylindrical of driving shaft constitute and are concentric with its internal diameter in the inside of pump 2 driving perforate 33 location of lower cover 16.Therefore the drive part 8 that mixes axle 6 can pass the internal diameter that drives perforate 33 and driving shaft 12.At driving side, a seal 20 around driving shaft 12 is fixed on the upper cover plate 18 of pump 2.Between the circumference of seal 20 and driving shaft 12, constitute a clearance seal 26.
At driving side, the internal diameter of driving shaft 12 becomes jar shape expansion and constitutes the flange 21 of an annular.The free end that mixes axle 6 is stretched out in inside in the jar shape extension of driving shaft 12.
Between the internal diameter of drive part 8 that mixes axle 6 and driving shaft 12, constitute a clearance seal 26.Mix on the circumference of axle 6 tool guide screw line 27 once in gap sealed zone.
The free end of the free end of mixing axle 6 and the flange 21 of driving shaft 12 is connected with motor shaft 25 by a speed changer 23.Motor shaft 25 leads to wherein unshowned motor.
In the running with rotation speed n 1 drive motors axle 25.Speed changer 23, it for example can constitute planetary transmission, constitutes like this, thereby promptly drives flange 21 and drive driving shaft 12 with motor speed n1.Speed ratio by speed changer 23 drives mixing axle 6 with rotation speed n 2, and rotation speed n 2 preferably is higher than motor speed n1.The driving shaft 12 of pump is determined by the gearratio of speed changer 23 with the speed discrepancy that mixes between the axle 6 of blender 1.
Also there is such possibility in this case, promptly adopts speed changer with a plurality of convertible speed ratios.And the running of device also may drive with the rotating speed that is lower than motor speed and mix axle.
In order to mix and the melt-flow of transferring polymer melt by melt inlet 4 input units.Solution stream enters mixing chamber 5 by melt inlet 4.This moment, rotation mixed axle 6.Melt alternately enters the groove system of the mixing groove of making 10 and the groove system made from mixing groove 9 on the circumference of the mixing portion 7 that mixes axle 6 in the locular wall of mixing chamber 5.Melt-flow is subjected to mixing consumingly and arrives pumps 2 at the end of mixing chamber 5 by access road 11.The conveying device 13 of pump 2 is driven by driving shaft 12, thereby the engagement by gear 14 and 15 is with the pressure span of melt from entrance area front pump 2.Melt-flow is carried by exit passageway 19, and this exit passageway for example is used to extrude the filamentary spinning jet nozzle of hank knotting shape with one.
The situation of melt leakage occurs for mixing clearance seal 26 places between axle 6 and the driving shaft 12 during entry into service at device, this leakage is stopped in the zone of jar shape extension.By being created in when mixing axle 6 rotations and carrying, thereby even under the situation of the polymer melt of high viscosity, also can produce good sealing effectiveness to the gap of mixing chamber direction at the guide screw line 27 that returns that in the zone of clearance seal 26, is shaped on the circumference that mixes axle 6.
Another embodiment of device of the present invention shown in Fig. 2 and 3.Wherein Fig. 2 simplifies the cutaway view that device is shown, and Fig. 3 simplifies the vertical view of the sun wheel set that device is shown.Therefore following the description at Fig. 2 and 3.
Therefore the setting of blender 1 and pump 2 and the function of this embodiment are identical with the foregoing description basically, only point out difference basically below, and all the other relate to above description.
Blender 1 is installed on the lower cover 16 of pump 2 with a housing 3.Housing 3 comprises a mixing chamber 5, wherein rotatably guides the mixing axle 6 with mixing portion 7.The drive part 8 that mixes axle 6 stretches out and passes pump 2 up to driving side 32 from mixing chamber 5.
Pump 2 constitutes the dispensing pump with a plurality of conveying devices, so that total melt-flow is divided into a plurality of shuntings.The conveying device of pump is made of a plurality of gear pairs.One center sun gear 28 is set for this reason, and it is installed on the circumference of driving shaft 12 of hollow cylinder.Driving shaft 12 is rotatably supported in the lower cover 16 and with its opposite end with an end and stretches to driving side 32 beyond pump 2.Internal mix axle 6 at driving shaft 12 leads to driving side 32 with its drive part 8.Mixing formation one clearance seal 26 between axle 6 and the driving shaft 12.
Be provided with a plurality of planetary gears 29 on the circumference of sun gear 28, it constitutes the conveying of a shunting respectively with sun gear 28 engagements and a gear pair.To this planetary gear 29 respectively dislocation be arranged on the circumference for 120 °.But all planetary gear 29 difference free rotary ground supportings are on axle journal 34.Just obtain three gear pairs when adopting three planetary gears, it produces three shuntings.
In pump shown in Figure 2, be provided with two center wheel sets, it is separated each other by an intermediate plate 30.Each center wheel set is designed to identical, thereby produces altogether six gear pairs and cause six shuntings.Each gear pair between centre wheel 28 and planetary gear 29 is by a shell plates 17 guiding.Shell plates 17 and intermediate plate 30 are fixing by lower cover 16 and upper cover plate 18.
In lower cover 16, be shaped on access road 11.Access road 11 is communicated with the mixing chamber 5 of blender 1.Access road 11 is communicated with mixing chamber 5 with the entrance area of gear pair.Shunting is carried by exit passageway 19 by pump 2.
At driving side 32, the free end of driving shaft 12 is connected with a pump drive 35.To the gear ring 36 that this driving shaft 12 has an annular, pump drive 35 meshes therein.
The free end of the drive part 8 of mixing axle 6 stretches out driving shaft 12 and is connected with a hybrid drive 37 in the end.The control independently respectively of hybrid drive 37 and pump drive 35, thus axle 6 and driving shaft 12 speed discrepancy driving arbitrarily mixed.
In the embodiment of the device of the present invention shown in Fig. 2 and 3, total melt-flow transfers to pump 2 after thoroughly mixing in blender 1.Melt-flow is divided into six shuntings and for example transfers to a spinning jet nozzle respectively by six gear pairs altogether in pump 2.
Embodiment according to Fig. 1 to 3 is exemplary in its configuration aspects.Like this, for example mixing axle can lobed hybrid element at mixing chamber, and these hybrid elements are rotatably operated in the inside of mixing chamber.Wherein importantly, directly before carrying, produce the strong thorough mixing of melt-flow.The feature of device of the present invention particularly in, reach strong mixing, comprising whole transverse cross-sectional area of melt-flow.Therefore reach, all shuntings that produce by pump not only itself and also be uniformly each other and have equal temperature and viscosity.Such assembly first is used for spinning equipment, and wherein thermoplastic melts by extruder and be sent to spinning jet nozzle by means of dispensing pump under pressure.
Mixing groove 10 fixing 27 times guide screw lines of mixing groove 11 access road 12 driving shafts, 13 conveying device 14 first gears, 15 second gear 16 lower covers, 17 housing cover 18 upper cover plates, 19 exit passageway 20 seals, 21 flange 23 speed changers, 24 axle head 25 motor shafts, 26 clearance seals, 28 sun gears, 29 planetary gears, 30 intermediate plates, 31 outlets, 32 driving sides 33 that list of numerals 1 blender 2 pumps 3 housings 4 melt inlets 5 mixing chambers 6 mix 9 rotations of axle 7 mixing portions 8 drive parts drive perforate 34 axle journals 35 pump drives 36 gear rings 37 hybrid drives
Claims (10)
1. be used to mix device with the transferring polymer melt, it comprises a blender (1) and is the direct pump (2) that disposes of blender (1), wherein blender (1) has the mixing axle (6) of a rotation in a mixing chamber (5), pump (2) has a driving shaft (12) in order to drive at least one conveying device (13), it is characterized in that, mix axle (6) and have a drive part (8) that stretches out from mixing chamber (5) at the inner mixing portion (7) that is provided with of mixing chamber (5) and, and the drive part (8) that the driving shaft (12) of pump (2) is designed to hollow cylindrical and mixed (6) passes.
2. according to the described device of claim 1, it is characterized in that driving shaft (12) is connected with drive unit (25) by a speed changer (23) with the drive part (8) that mixes axle (6).
3. according to the described device of claim 2, it is characterized in that speed changer (23) is designed so that the rotating speed of mixing axle (6) is higher than the rotating speed of driving shaft (12).
4. according to the described device of claim 1, it is characterized in that, two drive units (35,37) are set and are equipped with a drive unit (35,37) respectively for driving shaft (12) and the drive part (8) that mixes spool (6).
5. according to one of claim 1 to 4 described device, it is characterized in that, between driving shaft (12) and the drive part (8) that mixes spool (6), design a clearance seal (26).
6. according to the described device of claim 5, it is characterized in that, the drive end of driving shaft (12) be designed to have annular lip (21) the jar shape in order to admit melt leakage.
7. according to claim 4 or 5 described devices, it is characterized in that the drive part (8) of driving shaft (12) or mixing axle (6) has back guide screw line (27) in the zone of clearance seal (26).
8. according to one of an aforesaid right requirement described device, it is characterized in that the conveying device (13) of pump (2) is a gear pair (14,15), one of them gear (15) is installed on the circumference of driving shaft (12).
9. according to the described device of claim 8, it is characterized in that a plurality of gear pairs (14,15) are set are used to produce a plurality of shuntings, wherein center sun gear (28) is installed on the circumference of driving shaft (12).
10. according to one of an aforesaid right requirement described device, it is characterized in that, mix on the circumference of mixing portion (7) of axle (6) and have many mixing grooves (9), these mix interior many of grooves and the locular wall of mixing chamber (5) and mix groove (10) co-operating, so that mix.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10155260.2 | 2001-11-09 | ||
| DE10155260 | 2001-11-09 | ||
| DE10160908.6 | 2001-12-12 | ||
| DE10160908 | 2001-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1417014A true CN1417014A (en) | 2003-05-14 |
| CN100354095C CN100354095C (en) | 2007-12-12 |
Family
ID=26010546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021499365A Expired - Fee Related CN100354095C (en) | 2001-11-09 | 2002-11-08 | Polymer melt mixing and conveying equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100354095C (en) |
| DE (1) | DE10252368A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10348985B3 (en) | 2003-10-22 | 2005-05-19 | Berstorff Gmbh | gear pump |
| DE102005061667A1 (en) * | 2005-12-22 | 2007-07-05 | Vmi-Az Extrusion Gmbh | Planetary gear pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4001986C1 (en) * | 1990-01-24 | 1991-09-19 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De | |
| EP0636190B1 (en) * | 1993-02-18 | 1997-10-08 | B a r m a g AG | Thermoplastic thread spinning installation |
| TW470789B (en) * | 1998-08-29 | 2002-01-01 | Barmag Barmer Maschf | Apparatus for mixing and advancing a polymer melt |
-
2002
- 2002-11-08 CN CNB021499365A patent/CN100354095C/en not_active Expired - Fee Related
- 2002-11-08 DE DE10252368A patent/DE10252368A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN100354095C (en) | 2007-12-12 |
| DE10252368A1 (en) | 2003-05-22 |
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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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: OERLIKON TEXTILE GMBH + CO. KG Free format text: FORMER NAME: SAURER GMBH + CO.KG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Remscheid, Federal Republic of Germany Patentee after: Oerlikon Textile GmbH & Co. KG Address before: Remscheid, Federal Republic of Germany Patentee before: Sula GmbH & Co |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20131108 |