CN2918042Y - Calibrating apparatus for extrusion molding apparatus temperature control system - Google Patents
Calibrating apparatus for extrusion molding apparatus temperature control system Download PDFInfo
- Publication number
- CN2918042Y CN2918042Y CNU2006200592382U CN200620059238U CN2918042Y CN 2918042 Y CN2918042 Y CN 2918042Y CN U2006200592382 U CNU2006200592382 U CN U2006200592382U CN 200620059238 U CN200620059238 U CN 200620059238U CN 2918042 Y CN2918042 Y CN 2918042Y
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- temperature
- temperature control
- control system
- oil
- bathroom
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- Expired - Lifetime
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- B29C47/92—
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a calibration device for plastic extruding device temperature control system, which comprises a constant temperature oil bathroom, a heating element, a detecting thermocouple, an oil bath temperature controller, a stirring motor, a detecting bed frame and a standard thermometer; the mixing arm of the heating element, the detecting thermocouple and the stirring motor is inserted into the oil in the constant temperature oil bathroom; the detecting thermocouple controls the heating element working or not through the oil bath temperature controller; the detecting bed frame is arranged in the oil in the constant temperature oil bathroom and is a carcase, which is used for arranging the standard thermometer and the thermostatic element of the measuring system on the same interface. The device has simple structure, easy operation and can easily take system measurement to the temperature control system, so as to determine whether a temperature-control windage exists and take corresponding corrections to the existing system deviation.
Description
Technical field
The utility model relates to the technical field of temperature control system calibrating, and is special relevant with the calibrating installation structure of extrusion apparatus temperature control system.
Background technology
In the production process of electric wire, extrusion apparatus adopt usually electrically heated form to the machine barrel of equipment, flange, head etc. heat, temperature control.Because various factors is comprehensive, extrusion apparatus (unit) more or less have a temperature control deviation, and require higher relatively unit for temperature control, as pressing crosslinked main equipment in the catenary suspension type continuous vulcanization, head adopts three independently controlled fluid circulation system, its temperature control system is to adopt temperature control point discrete sampling, the central controlled control mode of computer, i.e. input is set the control parameter, reads the temperature indicating value of temperature control section, is revised deviation, generally finish by display terminal, generally the unit temperature is relatively stable, and the temperature control deviation is also less.Yet, in the start production process, because many factors such as the setting of the installation of temperature-sensing element and sampling mode, temperature-sensing element oneself factor, the setting of temperature control point, compensating wire, temperature control parameter and adjustment is comprehensive, cause temperature indicating value and operating point actual temperature to have deviation sometimes, thereby may cause product to produce defective.How could measure objectively, the actual temperature of calibration equipment temperature control system, in the operating process of reality, have certain degree of difficulty.
Usually when measuring a certain temperature of extrusion apparatus system, can with measuring method have:
One, passes through the temperature control instrument of extrusion apparatus (unit) switch board or the show value of terminal display, the temperature indicating value of fetch equipment appropriate section.
Two, be placed on sampled point with the mercurial thermometer plug and measure, the range estimation reading is read or takes out in range estimation behind the measurement temperature stabilization of mercurial thermometer.The limitation of this method is will take out temperature-sensing element from measured hole when measuring, again thermometer is filled in the hole and measured, but in this way to the head section of extrusion apparatus, especially the fast folder of crosslinked main equipment, the measurement of leading parts such as sebific duct (machine neck), head, die orifice then are difficult for holding and the temperature indicating value not directly perceived.
Three, test in the sampling test point with the K type thermocouple probe of DM-801B digital display point temperature meter, read measured point temperature indicating value at its display screen.Because temperature shows nonlinear often (the measurement difference of low-temperature zone and high temperature section), therefore measuring indicating value itself exists deviation.
Four, with portable infrared (contactless) temperature measurer temperature sampling point is throwed, read the temperature indicating value at the measuring instrument display screen.This measuring method can only measure the surface temperature of equipment usually, and to the inside such as the machine barrel of equipment, lead sebific duct, head inside, die orifice etc. and can not effectively reflect its actual temperature, use and measure judgement and limited to a certain extent.
Above measuring method, simple and easy to do workable, but certainty of measurement is not good; For a temperature control system, all there is limitation in above measuring method, and even the temperature control deviation that whether exists of the temperature control system of being made up of signal sampling part and control section can't be measured.That is to say the system that is made up of primary instrument (temperature-sensing element) and secondary meter (signal processing unit, control and display), whether the coupling between it exists measured deviation then can't judge.
The inventor has developed a kind of calibrating installation specially at the defective that above measuring method exists, and this device is to be used to examine and determine corresponding correction of deviation work that the extrusion apparatus temperature control system exists, and this case produces therefrom.
The utility model content
The purpose of this utility model is to provide a kind of calibrating installation of extrusion apparatus temperature control system, it is simple in structure, uses processing ease, can carry out systematic survey to temperature control system easily, judging whether system exists the temperature control deviation, and the deviation that system exists done corresponding the correction.
For reaching above-mentioned purpose, solution of the present utility model is:
The calibrating installation of extrusion apparatus temperature control system, form by thermostatical oil bathroom, heating element heater, detection thermocouple, oil bath temperature controller, stirring motor, detection pedestal and standard thermometer, the puddler of heating element heater, detection thermocouple and stirring motor is plugged in the fluid in thermostatical oil bathroom, detect thermocouple and whether control heating element heater work by the oil bath temperature controller, detect pedestal and be placed in the fluid in thermostatical oil bathroom, detecting pedestal is to be used to mount standard thermometer and to treat the shelf of the temperature-sensing element of examining system in same interface.
Has heat-insulation layer on the wall in above-mentioned thermostatical oil bathroom.
It is the medium temperature of oil bath that above-mentioned thermostatical oil bathroom adopts methyl-silicone oil.
Above-mentioned detection pedestal has a following datum level and a last locating surface at least, offer some jacks on the last locating surface, standard thermometer is supported in down on the datum level with the jack that the temperature-sensing element for the treatment of examining system passes locating surface, guarantees that thus test point is in the same interface in thermostatical oil bathroom.
Bottom, above-mentioned thermostatical oil bathroom is equipped with roller or other adjustable shelf that can be convenient to move.
After adopting said structure, when the utility model uses, standard thermometer and the temperature-sensing element for the treatment of examining system are mounted on the detection pedestal, read indicating value from standard thermometer, from treating that examining system reads indicating value, two groups of numerical value are compared, can judge whether system exists the temperature control deviation, and, promptly reach the purpose of system's calibrating to corresponding correction of deviation work that system exists.The utility model is simple in structure, and detecting operation is easy.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Consult shown in Figure 1ly, the calibrating installation of the extrusion apparatus temperature control system that the utility model discloses is by thermostatical oil bathroom 1, heating element heater 2, detect thermocouple 3, oil bath temperature controller 4, stirring motor 5, detect pedestal 6 and standard thermometer 7 is formed.
Has heat-insulation layer 11 on the wall in thermostatical oil bathroom 1.Medium temperature adopts methyl-silicone oil.
The puddler 51 of heating element heater 2, detection thermocouple 3 and stirring motor 5 is plugged in the fluid in thermostatical oil bathroom 1.Whether detect thermocouple 3 heats by oil bath temperature controller 4 control heating element heaters 2.
Detecting pedestal 6 is placed in the fluid in thermostatical oil bathroom 1.Detect pedestal 6 for being used to mount standard thermometer 7 and treating that the temperature-sensing element 8 of examining system 9 is in the shelf at same interface.Detect pedestal 6 as shown in Figure 1, can have a following datum level 61 and a last locating surface 62, offer some jacks 63 on the last locating surface 62, standard thermometer 7 passes the jack 63 of locating surface 62 with the temperature-sensing element 8 for the treatment of examining system 9 and is supported in down on the datum level 61, guarantees that thus test point is in the same interface in thermostatical oil bathroom 1.
The utility model can also further be equipped with roller or other adjustable shelf that can be convenient to move in 1 bottom, thermostatical oil bathroom, and constitutes portable calibrating installation, is convenient to online detection of on-the-spot extrusion apparatus and adjustment.
When the utility model is used for that specifically the temperature control system of being made up of temperature-sensing element and signal processing unit and display carried out systematic survey, can carry out in two steps:
At first instrument (computer) the temperature sampling part of temperature control system is separated with processes temperature signal and display unit, with SR-501 temperature instrumentation calibrating instrument (if the temperature-sensing element of instrument employing RTD, then calibration equipment is with ZX-25a precision resistance case) instrument (computer) processes temperature signal and display part are measured, by importing corresponding millivolt signal, tentatively judge whether instrument (computer) temperature signal measurement processing links exists measured deviation, and make respective record, if there is small deviation, eliminate deviation as far as possible by instrument (computer) being set or revised relevant parameter.Can guarantee the accuracy of processes temperature signal and display unit indicating value like this; Another benefit is: because the indicating value of processes temperature signal and display unit is relatively accurate, if there is fault in the temperature-sensing element of certain unit, can differentiate with comparalive ease.
Second, the temperature-sensing element 8 of each point for measuring temperature of equipment is taken out from temperature survey point (sampled point), after carrying out respective markers, concentrate and be placed in the thermostatical oil bathroom 1, set up same interface by detecting pedestal 6, adopt the medium temperature of methyl-silicone oil in the thermostatical oil bathroom 1 as constant temperature oil bath, the warm field stimulation operating point temperature that provides with thermostatical oil bathroom 1, set certain operating point temperature and intensification gradually, after thermostatical oil bathroom 1 temperature reaches operating point temperature stable state, whole temperature control system is carried out composite measurement, according to measurement result the temperature control system of extrusion apparatus is made roughly and being judged, whether understanding equipment exists the temperature control deviation to adjust accordingly, to satisfy technological requirement.Concrete operations for example, the temperature value of equipment section temperature controlling point, technological requirement is 170 ℃, can measure 3～5 times this cell temperature value, get its average then.If the indicating value of average and standard thermometer is not inconsistent, then there is the temperature control deviation in temperature control system.When actual measurement, consider once-existing lag parameter between temperature survey and the demonstration, measure again after generally must reaching stable state in the temperature of oil bath, by comparing with the secondary standard mercurial thermometer, as find that there is deviation in temperature control system, can directly carry out deviation adjustment or parameter value correction.As M5, P in the AL-708 series Artificial intelligence industry regulator, t, Ctl, Sc (keeping parameter, rate parameter, lag time, output cycle, primary input translation correction etc.).
The method of temperature deviation correction has several:
1) according to the increasing and decreasing of the deviate of instrument, i.e. the negative value of deviate (oppositely value).
2) change the parameter value correction by input.Press the corrected parameter method of crosslinked main equipment in for example homemade, adjust to a certain temperature section, PLC controls by touching, colored man-machine interface operation screen reads temperature parameter and enters the adjustment state, revise the picture of measured temperature, parameter+10 representatives increase by 1 ℃,-10 representatives subtract 1 ℃, adjust the correction deviation range.
3) ratio by measured value (standard indicating value) A and equipment indicating value B is A/B, obtain a certain value C, the C value can be obtained revised temperature value mutually at convenience with the setting value of computer temperature parameter, and the indicating value of revising the temperature of back equipment section is measured with the standard value of constant temperature oil bath temperature and is compared, and generally both indicating values are identical substantially.For example under the situation of constant temperature oil bath stable state, the temperature standard device indicating value of certain section operating point is 120 ℃, and the instrument panel of equipment to show be 116 ℃, with 120/116=1.0344,1.0344 substitution temperature parameters are multiplied each other, and generally the temperature indicating value of extrusion apparatus and constant temperature oil bath matches substantially.
4) eliminate the temperature control deviation by the pid parameter of adjusting instrument or equipment computer signal processing unit.The method of adjustment of pid parameter has experience trial and error procedure, damped method etc.No matter adopt the sort of method, total many principles be system transit time short, maximum deviation and overshoot is little, static difference is little, the least possible through the number of times of convergent oscillation behind the perturbation action, the constant temperature curve is straight as far as possible.
Utilization the utility model is examined and determine and the realistic meaning of measuring method:
1. can measure extrusion apparatus (unit) and whether have system's temperature control deviation, what is departure?
2. can carry out online adjustment to the deviation that system exists, improve equipment complete machine performance and equipment availability.
Whether the temperature-sensing element that 3. can differentiate extrusion apparatus exists fault fault judgements such as (number do not match, misuse as the calibration of disconnected idol, rotten, partial short-circuit, instrument and temperature-sensing element).
4. can carry out the trial judgement that can import element and homemade element be replaced.The production domesticization that realizes the import temperature-sensing element substitutes, and saves foreign exchange, shortens maintenance cycle.
5. make the normal substantially of extrusion apparatus temperature control system, thereby guarantee the correct execution of technological parameter, standard production link.
6. can under (temperature) standard raw material be bidded and purchased unifying, reduce production costs and preferably be fit to the raw material of this enterprise.
In a word, the utility model can carry out detection of dynamic and temperature control correction for drift to temperature control instrument, temperature-sensing element (thermocouple, thermal resistance) and system, and is easy, directly perceived, suitable, is fit to the whole verification of extrusion apparatus (unit) or other equipment temperature control systems.
Claims (6)
1, the calibrating installation of extrusion apparatus temperature control system, it is characterized in that: form by thermostatical oil bathroom, heating element heater, detection thermocouple, oil bath temperature controller, stirring motor, detection pedestal and standard thermometer, the puddler of heating element heater, detection thermocouple and stirring motor is plugged in the fluid in thermostatical oil bathroom, detect thermocouple and whether control heating element heater work by the oil bath temperature controller, detect pedestal and be placed in the fluid in thermostatical oil bathroom, detecting pedestal is to be used to mount standard thermometer and to treat the shelf of the temperature-sensing element of examining system in same interface.
2, according to the calibrating installation of the described extrusion apparatus temperature control system of claim 1, it is characterized in that: have heat-insulation layer on the wall in thermostatical oil bathroom.
3, according to the calibrating installation of the described extrusion apparatus temperature control system of claim 1, it is characterized in that: it is the medium temperature of oil bath that the thermostatical oil bathroom adopts methyl-silicone oil.
4, according to the calibrating installation of the described extrusion apparatus temperature control system of claim 1, it is characterized in that: detect pedestal and have a following datum level and a last locating surface at least, offer some jacks on the last locating surface, standard thermometer is supported in down on the datum level with the jack that the temperature-sensing element for the treatment of examining system passes locating surface.
5, according to the calibrating installation of the described extrusion apparatus temperature control system of claim 1, it is characterized in that: bottom, thermostatical oil bathroom is equipped with roller.
6, according to the calibrating installation of the described extrusion apparatus temperature control system of claim 1, it is characterized in that: bottom, thermostatical oil bathroom is equipped with adjustable shelf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200592382U CN2918042Y (en) | 2006-05-17 | 2006-05-17 | Calibrating apparatus for extrusion molding apparatus temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200592382U CN2918042Y (en) | 2006-05-17 | 2006-05-17 | Calibrating apparatus for extrusion molding apparatus temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918042Y true CN2918042Y (en) | 2007-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200592382U Expired - Lifetime CN2918042Y (en) | 2006-05-17 | 2006-05-17 | Calibrating apparatus for extrusion molding apparatus temperature control system |
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| Country | Link |
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| CN (1) | CN2918042Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139530A (en) * | 2010-02-01 | 2011-08-03 | 芜湖亚奇汽车部件有限公司 | Moveable heating platform capable of exchanging blow moulding die quickly |
| CN104931156A (en) * | 2015-06-25 | 2015-09-23 | 安徽华茂纺织股份有限公司 | Bimetallic thermometer calibration device |
| CN110646492A (en) * | 2019-09-20 | 2020-01-03 | 西安飞机工业（集团）有限责任公司 | Standardized calibration device and calibration method for electrodes of physical and chemical instruments |
| CN113274764A (en) * | 2021-06-18 | 2021-08-20 | 中触媒新材料股份有限公司 | Liquid phase adsorption separation system and temperature control process method thereof |
-
2006
- 2006-05-17 CN CNU2006200592382U patent/CN2918042Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139530A (en) * | 2010-02-01 | 2011-08-03 | 芜湖亚奇汽车部件有限公司 | Moveable heating platform capable of exchanging blow moulding die quickly |
| CN104931156A (en) * | 2015-06-25 | 2015-09-23 | 安徽华茂纺织股份有限公司 | Bimetallic thermometer calibration device |
| CN110646492A (en) * | 2019-09-20 | 2020-01-03 | 西安飞机工业（集团）有限责任公司 | Standardized calibration device and calibration method for electrodes of physical and chemical instruments |
| CN113274764A (en) * | 2021-06-18 | 2021-08-20 | 中触媒新材料股份有限公司 | Liquid phase adsorption separation system and temperature control process method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070704 |
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| EXPY | Termination of patent right or utility model |