CN1011619B - 双螺杆挤压机内惯性压力测量装置 - Google Patents

双螺杆挤压机内惯性压力测量装置

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Publication number
CN1011619B
CN1011619B CN87102977A CN87102977A CN1011619B CN 1011619 B CN1011619 B CN 1011619B CN 87102977 A CN87102977 A CN 87102977A CN 87102977 A CN87102977 A CN 87102977A CN 1011619 B CN1011619 B CN 1011619B
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CN
China
Prior art keywords
pressure
double screw
extruder
arrangement
deformation element
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
Application number
CN87102977A
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English (en)
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CN87102977A (zh
Inventor
西格弗莱德·契斯扎尼基
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KraussMaffei Berstorff GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hermann Berstorff Maschinenbau GmbH filed Critical Hermann Berstorff Maschinenbau GmbH
Publication of CN87102977A publication Critical patent/CN87102977A/zh
Publication of CN1011619B publication Critical patent/CN1011619B/zh
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0094—Press load monitoring means
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/12—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0002—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in ohmic resistance
    • 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
    • B29C2948/92009—Measured parameter
    • B29C2948/92266—Mechanical properties
    • 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
    • B29C2948/92761—Mechanical properties
    • 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
    • B29C2948/92809—Particular value claimed

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

本发明是对双螺杆挤压机惯性压力测量装置的改进。该改进装置将其上贴有半导体应变片的拉杆，用作螺杆轴向反压返回到挤压机外壳时的变形元件。

Description

本发明是测量双螺杆挤压机内惯性压力（Massedruck）的装置。
从西德实用新型DE-Gbm7241371已知一种带测量装置的螺杆压力机，该测量装置用来测量作用到增塑螺杆上的轴向反压。在承受轴向反压的增塑螺杆末端（反压轴承的后面）装有一个盘状变形元件，上面贴着半导体应变片，再将一个合适的测量显示装置与应变片联结起来。
为了安装盘状变形元件，需要在齿轮箱内增添一些零部件，这就必然使齿轮或反压轴承的造价大大增高。
此外不可能提供给两个螺杆相应的盘状变形元件，因为在第二个用作从动轴的轴后面的空间，需要供从动轴本身使用。安装在第二个螺杆轴的反压轴承后面的环状变形元件，要比一般盘状变形元件贵得多。
本发明的任务是提出一种双螺杆挤压机内惯性压力测量装置，它无需增添齿轮部件或反压轴承部件就能办到。
用此装置还可分别测量每一螺杆的反压，即双螺杆挤压机中的惯性压力，而不用添加零部件。
把轴向反压引回到挤压机外壳的拉杆，被用作应变片的携带者，这样一来，就有可能理想地不用添加任何零部件（添加在反压轴承或齿轮内）而测量到两个螺杆的反向压力，从而测到挤压空间内的惯性压力。
为求取惯性压力通常采用的其它装在挤压机汽缸壁上的压力测量装置，非常容易受干扰，而且只能给出挤压空间内某一处的压力。
本发明的一个实施例见图1，兹说明如下：
图中数字1所指的是挤压机的两个未绘出的锯齿状螺杆的从动轴，它们由反压轴承2支承着。
用法兰盖3将未绘出的挤压机外壳的连接法兰7锁住。
在箱体6中壁10上安一轴承法兰4，用以支承拉杆5。在拉杆另一端，用螺母11将拉杆同法兰盖3旋紧。
在拉杆5上安装半导体应变片8，此片依据拉杆的直径和材料性能而定，并与测量装置9相联结。
测量装置9接一指示仪表（如伏特计13），从而获得所测的值并显示出来。
箭头14标出力的行程，力由从动轴1开始，经过反压轴承2和轴承法兰4，到拉杆5和法兰盖3。
作为变形元件用的拉杆5，在力通过时依反向压力大小发生一定的膨胀，半导体应变片精确地捕捉到这一膨胀量，并在测量显示装置9上将其显示出来。
根据此值，便可以采取相应的防范措施，如较强地对挤压机汽缸加热，以使热塑性的材料的粘性下降，从而降低挤压机汽缸中压力或反压力。
为了安全起见，测量显示装置也可以连接上齿轮箱的断路装置。

Claims (1)

  1. 通过获取螺杆的轴向反压来测量双螺杆挤压机内惯性压力的装置，其中在齿轮箱后壁安装一个贴有应变片的变形元件，轴向反压即作用到此变形元件上，应变片连结着一个合适的指示装置，用以显示螺杆的轴向反压，从而获知挤压空间里的压力，其特征在于：把螺杆的轴向反压引回到挤压机外壳或壳体法兰(7)上的拉杆(5)，被用作携带应变片(8)的变形元件。
CN87102977A 1986-05-23 1987-04-24 双螺杆挤压机内惯性压力测量装置 Expired CN1011619B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP3617380.0 1986-05-23
DEP3617380,0 1986-05-23
DE3617380A DE3617380C1 (de) 1986-05-23 1986-05-23 Einrichtung zum Messen des Massedruckes in einem Zweischneckenextruder

Publications (2)

Publication Number Publication Date
CN87102977A CN87102977A (zh) 1987-12-02
CN1011619B true CN1011619B (zh) 1991-02-13

Family

ID=6301474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN87102977A Expired CN1011619B (zh) 1986-05-23 1987-04-24 双螺杆挤压机内惯性压力测量装置

Country Status (6)

Country Link
US (1) US4768389A (zh)
EP (1) EP0248153A3 (zh)
JP (1) JPH0692110B2 (zh)
CN (1) CN1011619B (zh)
DE (1) DE3617380C1 (zh)
SU (1) SU1718736A3 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1197790B (it) * 1986-07-21 1988-12-06 Venturino Gianfranco Gse Azionamento alimentatore per motore in corrente continua con retroazione intrinseca
DE3842630A1 (de) * 1988-12-17 1990-06-21 Haendle Gmbh Masch Anlagenbau Spritz- oder presswerkzeug
JPH0754831Y2 (ja) * 1990-11-15 1995-12-18 株式会社アーレスティ 加圧式成形機のピン型荷重センサー
US5529566A (en) * 1990-12-11 1996-06-25 Weil; Hans A. Method for controlling a solid-shell centrifuge
EP0868215B1 (en) * 1995-12-01 2002-01-30 Baker Hughes Incorporated Method and apparatus for controlling and monitoring continuous feed centrifuge
US7685890B2 (en) * 2005-10-12 2010-03-30 Ab Skf Bearing assembly with a strain sensor
CA2644580C (en) * 2006-03-03 2015-08-25 Flowserve Management Company Load measurement method and device
CN102589774B (zh) * 2011-12-21 2013-12-04 山东科技大学 锚固界面应力测试装置及其测试方法
JP6029576B2 (ja) * 2013-12-20 2016-11-24 株式会社神戸製鋼所 密閉式混練装置のロータに加わるスラスト荷重の計測装置
JP6013314B2 (ja) * 2013-12-20 2016-10-25 株式会社神戸製鋼所 密閉式混練装置のスラスト荷重計測装置の校正方法
CN104723600B (zh) * 2015-03-16 2016-03-02 武汉轻工大学 一种螺杆榨油机的膛内应力测试方法
CN108097372A (zh) * 2018-01-30 2018-06-01 中国矿业大学 一种齿环可调式破碎机试验测试平台

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE288506C (zh) *
DE7241371U (de) * 1974-02-28 Cincinnati Milacron Inc Schneckenpresse mit einer Dehnungsmeßstreifeneinrichtung zum Messen des auf die Plastifizierungsschnecke ausgeübten Axialdruckes
US2802361A (en) * 1954-12-27 1957-08-13 Modern Plastic Machinery Corp Means to indicate the thrust in a revolving shaft in machinery
DE1063830B (de) * 1958-12-04 1959-08-20 Weser Ag Verfahren und Einrichtung zum Messen von Schubkraeften
US4089216A (en) * 1976-06-14 1978-05-16 Ex-Cell-O Corporation Load measurement device
DE2648192C2 (de) * 1976-10-25 1985-08-01 Wolfhard Dipl.-Ing. 6108 Weiterstadt Sack Vorrichtung zur Messung und/oder Überwachung der Axialkraft an einer Werkzeugspindel

Also Published As

Publication number Publication date
DE3617380C1 (de) 1987-07-02
JPS62297132A (ja) 1987-12-24
CN87102977A (zh) 1987-12-02
EP0248153A3 (de) 1988-07-27
US4768389A (en) 1988-09-06
EP0248153A2 (de) 1987-12-09
SU1718736A3 (ru) 1992-03-07
JPH0692110B2 (ja) 1994-11-16

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