CN100409124C - Extrusion plant with synchronized drive units, and method of synchronization of drive units - Google Patents

Extrusion plant with synchronized drive units, and method of synchronization of drive units Download PDF

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Publication number
CN100409124C
CN100409124C CNB2004800122234A CN200480012223A CN100409124C CN 100409124 C CN100409124 C CN 100409124C CN B2004800122234 A CNB2004800122234 A CN B2004800122234A CN 200480012223 A CN200480012223 A CN 200480012223A CN 100409124 C CN100409124 C CN 100409124C
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CN
China
Prior art keywords
speed
unit
ratings
change
drive units
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
Application number
CNB2004800122234A
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Chinese (zh)
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CN1784638A (en
Inventor
罗曼·拉伯尔
斯蒂芬·鲍默
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KRAUS-MAFFEI PLASTIC INDUSTRY AG
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KRAUS-MAFFEI PLASTIC INDUSTRY AG
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Publication of CN1784638A publication Critical patent/CN1784638A/en
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Publication of CN100409124C publication Critical patent/CN100409124C/en
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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
    • B29C48/355—Conveyors for extruded articles
    • 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
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • 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
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • 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
    • B29C2948/92933—Conveying, transporting or storage of articles
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to an extrusion plant provided with synchronised drive units and method for synchronising drives. The nominal value of a drive speed results from the product of a maximum drive speed, a unit-dependent standardised ratio and a standardised synchronisation factor identical for all units. Said standardised ratio fixes the relative speeds of the different drive units therebetween, the modification of the synchronisation factor results in the speed synchronous change, thereby making it possible to a permanent synchronisation within the entire speed range.

Description

Have the extrusion equipment of driven in synchronism unit and be used for synchronously driven method
Technical field
The present invention relates to a kind of extrusion equipment with a plurality of driver elements, the speed of these driver elements is by synchronously, the invention still further relates to be used to the method that makes these driver elements synchronous.
Background technology
Extrusion equipment is used for the extrusion of thermoplastic plastics.The raw material of thermoplastics is given in the transportation worm screw by a feed arrangement as particle or powder for this reason, and material is evenly mixed with being heated to become to mould therein.The material that becomes to mould is extruded by a shaping jig from worm screw, and the strand that obtains is discharged by cooling device by a pulling off device.The method is suitable for the production of section bar lath, tubing, sheet material and analog.Extrusion equipment-it also can be made of a plurality of squeeze unit-the unit usually by centralized control.
In order to keep product quality constant, it is very important that the speed of extrusion equipment is regulated, all driver elements-for example become to mould worm screw, feed arrangement and passing away-speed by adjusted in concert.In known method for synchronous, the velocity variations of a unit is delivered on other unit pari passu.Yet because the numerical evaluation precision, this method can cause the phase mutual deviation of actuating speed in current speed is regulated.In other method, can carry out since the minimum speed of a regulation synchronously, because otherwise can cause the out of true of the coupling factor between each unit to be calculated.Therefore as the time speed drop to minimum speed when following, can not continue synchronously to carry out, and synchronously essential manual starting.
DE 198 59 348 A1 disclose a kind of control and control method and corresponding extruder that is used for extruder.This extruder has motor, and they are so controlled by means of frequency adjustment, makes that the orbital velocity of passing away chain is basic identical.
The device that DE 196 51 427 A1 disclose a kind of position that links drive system and angle synchronisation control means and have been used to implement the method.Here single driver element is combined into a driving group, and the cadence signal of the command signal form by increment or coding is controlled.
Summary of the invention
The objective of the invention is to provide a kind of be used to the make synchronous method of driver element and a kind of extrusion equipment with driven in synchronism unit, these driver elements can be synchronous constantly in whole velocity range.
Above-mentioned task is used to make the synchronous method of driver element to solve by a kind of, wherein the ratings of corresponding units speed is maximal rate, the corresponding ratio and a product for all identical synchronizer in all unit of corresponding units, the synchronous speed of unit changes by changing synchronizer and realizes, and the variation of the variation of the relation of the speed proportional between the unit by corresponding ratio realizes.Above-mentioned task also solves by a kind of extrusion equipment with a plurality of driver elements, wherein the ratings of corresponding units speed is maximal rate, the corresponding ratio and a product for all identical synchronizer in all unit of corresponding units, the synchronous speed of unit changes by changing synchronizer and realizes, and the variation of the variation of the relation of the speed proportional between the unit by corresponding ratio realizes.
According to the present invention, the speed ratings of a driver element is obtained by the maximal rate of this unit, a ratio relevant with the unit and the product for all identical synchronizer in all unit.
Ratings=synchronizer ratio maximal rate
The relative velocity of each driver element is determined mutually by described ratio.Synchronizer changes when synchronous speed changes, and ratio remains unchanged, thereby by synchronizer is changed to maximal value from 0, makes that the speed of unit can be from the static maximal rate that is adjusted to.In order to change the speed proportional relation between each unit, adjust one or more ratios.Can on each working point, realize synchronously.
Description of drawings
The preferred embodiments of the present invention will describe by accompanying drawing.In the accompanying drawing:
Fig. 1 illustrates an extrusion equipment, and
Fig. 2 illustrates the velocity varies with time v-t figure (Velocity-time figure) of different units.
Embodiment
Fig. 1 illustrates the known structure of an extrusion equipment, and it has feed arrangement 1, charging driver element 2, extruding worm screw 3, worm drive unit 4, passing away 5 and passing away driver element (not shown).
Fig. 2 illustrates the time dependent speed of driver element.The speed of curve 6 expression feed arrangements 1 among the figure, the speed of curve 7 expression worm screws 3, and the speed of curve 8 expression passing aways 5.Started at moment t0 extrusion equipment.Carving synchronizer at this moment and be changed to 0, is 0 thereby make the speed of all unit.The ratings of supposing required driver element speed is the value between time period t 1 to t2.In order to reach these needed speed, at this moment between in the section output valve of each driver element reach needed ratings from producing starting (t0) raising continuously until moment t1.Synchronizer increases continuously since 0 for this reason, until reaching required ratings.Because driver element allows different maximal raties to change usually, straight dashed line 6 ' is used in the variation of the maximal rate of feed arrangement 1, worm screw 3 and passing away 5 respectively in Fig. 2,7 ' and 8 ' illustrates, and the maximum pace of change of the heaviest unit of load-be in the illustrated case worm screw 3-is used as pace of change.
Reach required rated speed at moment t1, and this rated speed is held t2 constantly always.Begin synchronous speed at moment t2 and regulate, the speed synchronization of driver element descends in the time period of t2 to t3, reaches required ratings until moment t3.Pace of change equally also is taken as the maximum pace of change of the heaviest unit of load in the case, is taken as the maximum pace of change of worm screw 3 under illustrated case.Keep constant heavily again at time period t 3 to t4 medium velocities, the asynchronous speed that begins to carry out the driver element of passing away until moment t4 is regulated, at this moment the speed of passing away is lowered, and until reaching a new ratings, the speed of feed arrangement 1 and worm screw 3 remains unchanged simultaneously.
The ratio of the driver element by reducing passing away realizes that described asynchronous speed regulates, and in the case, before reaching new ratings, the pace of change of output valve is determined by the maximum pace of change of the individual unit maximum pace of change of passing away 5 (in the case by).
The highest ratio preferably is normalized to a maximal value, can not surpass this maximal value, and all other unit obtain a lower ratio like this.Thereby realized maximum computational accuracy, and avoided overflowing of ratio simultaneously.Units corresponding is called lead-out unit.If synchronizer is changed to maximal value, then lead-out unit reaches its maximal rate, and other unit that has than low ratio is in below their maximal rate simultaneously.Normalized formula is:
For a synchronous velocity variations, the user is that a unit provides a new ratings, calculates a new synchronizer by it, and this synchronizer is used for all unit then, thereby new ratings is obtained in all unit.Under asynchronous single situation of change, then calculate a new ratio by required new ratings, all other values remain unchanged simultaneously.
The method can realize with the known sensor that is used for speed etc. and programmable control and administrative unit in practice.On certain described method device that also can be used for having other or more unit.

Claims (6)

1. be used to the method that makes driver element synchronous, it is characterized in that, the ratings of corresponding units speed is maximal rate, the corresponding ratio and a product for all identical synchronizer in all unit of corresponding units, the synchronous speed of unit changes by changing synchronizer and realizes, and the variation of the variation of the relation of the speed proportional between the unit by corresponding ratio realizes.
2. the method for claim 1 is characterized in that, the highest ratio of all unit is normalized to one and does not allow the maximal value that surpasses.
3. method as claimed in claim 1 or 2 is characterized in that, obtains the output valve that had predetermined variation speed before reaching new ratings according to the variation of a ratings.
4. method as claimed in claim 3 is characterized in that, in synchronous speed changed, predetermined pace of change was determined by the slowest maximum pace of change of all unit.
5. method as claimed in claim 3 is characterized in that, when changing the ratings of individual unit, the maximum pace of change of this element is predetermined pace of change.
6. an extrusion equipment has a plurality of driver elements and is used for described driver element is carried out synchronous control module able to programme, it is characterized in that, described control module able to programme designed to be used each the described method in the claim 1 to 5 that realizes.
CNB2004800122234A 2003-05-07 2004-04-14 Extrusion plant with synchronized drive units, and method of synchronization of drive units Expired - Fee Related CN100409124C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10320179.3 2003-05-07
DE10320179 2003-05-07
DE10327397.2 2003-06-18

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CN1784638A CN1784638A (en) 2006-06-07
CN100409124C true CN100409124C (en) 2008-08-06

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037252A (en) * 1989-01-30 1991-08-06 Matsushita Electric Industrial Co., Ltd. Multi-spindle synchronous drive unit and gear cutting machine employing the same
CN1212378A (en) * 1997-09-22 1999-03-31 住友电气工业株式会社 Apparatus and method for making slotted rod for optical cable
DE19859348A1 (en) * 1998-11-09 2000-07-06 Sew Eurodrive Gmbh & Co Control of twin, geared electric motor drives of withdrawal conveyor serving plastic profile extrusion plant, employs programmable system of frequency converters sensing and correcting differential speed and torque
CN2538527Y (en) * 2002-04-19 2003-03-05 江苏牧羊集团有限公司 Forage grass block press

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19651427A1 (en) * 1996-12-11 1998-06-18 Control Tech Gmbh Synchronous control technically linked drive systems e.g. for printing machines and machine tools

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037252A (en) * 1989-01-30 1991-08-06 Matsushita Electric Industrial Co., Ltd. Multi-spindle synchronous drive unit and gear cutting machine employing the same
CN1212378A (en) * 1997-09-22 1999-03-31 住友电气工业株式会社 Apparatus and method for making slotted rod for optical cable
DE19859348A1 (en) * 1998-11-09 2000-07-06 Sew Eurodrive Gmbh & Co Control of twin, geared electric motor drives of withdrawal conveyor serving plastic profile extrusion plant, employs programmable system of frequency converters sensing and correcting differential speed and torque
CN2538527Y (en) * 2002-04-19 2003-03-05 江苏牧羊集团有限公司 Forage grass block press

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
输送线多机驱动自动调速系统的研究. 滕国仁，尤为强.辽宁工程技术大学学报（自然科学版），第19卷第5期. 2000
输送线多机驱动自动调速系统的研究. 滕国仁，尤为强.辽宁工程技术大学学报（自然科学版），第19卷第5期. 2000 *

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CN1784638A (en) 2006-06-07
DE10327397B3 (en) 2004-09-30

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Granted publication date: 20080806

Termination date: 20100414