CN201900714U - Double-position measuring magnetostriction displacement sensor for mold opening mechanism of injection molding machine - Google Patents
Double-position measuring magnetostriction displacement sensor for mold opening mechanism of injection molding machine Download PDFInfo
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- CN201900714U CN201900714U CN2010206353729U CN201020635372U CN201900714U CN 201900714 U CN201900714 U CN 201900714U CN 2010206353729 U CN2010206353729 U CN 2010206353729U CN 201020635372 U CN201020635372 U CN 201020635372U CN 201900714 U CN201900714 U CN 201900714U
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- slider
- displacement sensor
- injection molding
- molding machine
- connecting rod
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Abstract
The utility model relates to a double-position measuring magnetostriction displacement sensor for a mold opening mechanism of an injection molding machine, which comprises a magnetostriction displacement sensor body fixed on a framework of the injection molding machine. A guide track is arranged outside the body, a front slider and a rear slider are arranged in the front and the rear of the guide track, the front slider is provided with a front connecting rod, the other end of the front connecting rod is connected to a movable mold of the injection molding machine, the rear slider is provided with a rear connecting rod, the other end of the rear connecting rod is connected to an ejection mechanism of the injection molding machine, the movable mold drives the front slider to move synchronously, and the ejection mechanism drives the rear slider to move synchronously. During operation, the front slider and the rear slider act with a waveguide wire in the guide track to generate independent strain pulse signals by means of position variation. An electronic circuit and a digital-to-analog conversion circuit which are used for processing the pulse signals are arranged inside the magnetostriction displacement sensor, and the digital-to-analog conversion circuit directly outputs two independent channels of 0-10VDC (voltage direct current) voltage signals. The sensor is high in precision, convenient to control, stable, reliable, and low in cost.
Description
Technical field
The utility model relates to a kind of magnetostrictive displacement sensor, and magnetostrictive displacement sensor is measured in particularly a kind of two-position that is used for injection moulding machine mould open mechanism.
Background technology
Injection machine present stage mainly uses electronic ruler to make displacement transducer, and its performance and precision are to satisfy the requirement of plain edition injection machine substantially, magnetic scale relatively, and cost performance is higher; Some high-precision injection machines use magnetostrictive displacement sensor in a large number abroad, and in matched moulds/die sinking, use a magnetostrictive displacement sensor, adopt a magnetostrictive displacement sensor on the ejecting mechanism, these two displacement transducers only can be exported one road position signalling, and the relative electronic ruler of price, though precision is advantageous, but its price is very high, be unfavorable for the popularization of product, a kind ofly on a magnetostrictive displacement sensor, export the two independent position signalling simultaneously if can develop, its uniformity, high accuracy, high duplication is with advantageous, and satisfy the control requirement of the real work operation of injection machine, will be to the marketing of magnetostrictive displacement sensor, it will be very helpful satisfying high-precision injection machine measurement requirement.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of precision height, controls the two-position that is used for injection moulding machine mould open mechanism convenient, reliable and stable, that cost is low and measures magnetostrictive displacement sensor.
The technical scheme that the utility model adopted is:
Magnetostrictive displacement sensor is measured in the two-position that is used for injection moulding machine mould open mechanism, comprise the magnetostrictive displacement sensor main body that is fixed on the injection molding machine frame, main body is equipped with guide rail outward, forward and backward front-slider and the rear slider of being arranged with of guide rail, front-slider is provided with front rod, the other end of front rod is connected on the dynamic model of injection machine, and rear slider is provided with rear connecting rod, and the other end of rear connecting rod is connected on the ejecting mechanism of injection machine; Dynamic model drives the same moved further of front-slider, and ejecting mechanism drives the same moved further of rear slider; During work, forward and backward slide block by shift in position respectively with guide rail in the waveguide filament effect produce independently strain-pulse signal; Magnetostrictive displacement sensor inside is provided with electronic circuit and the D/A converting circuit of handling pulse signal, and D/A converting circuit is directly exported two independent 0-10V dc voltage signal.
The beneficial effects of the utility model are: owing to adopt an external magnetostrictive displacement sensor to measure the two-way position signalling simultaneously, and satisfy the working control requirement of injection machine, therefore strengthened the precision of injection machine, uniformity and repeatability are higher, and price more has superiority; The design's sensor satisfies the control requirement of the existing control system of injection machine, does not need existing controller is carried out technological improvement, and adopts outlet structure, installs simple and reliable on injection machine; In addition, use for ease of installing to connect, make structure more reasonable, magnetostrictive displacement sensor directly is fixed on the injection machine body, and two slide blocks directly are connected with dynamic model mechanism with ejecting mechanism respectively by guide rod, reduce the architecture advances of existing injection machine.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the magnetostrictive displacement sensor structural representation is measured in the two-position.
The specific embodiment
Referring to figs. 1 through shown in Figure 2, magnetostrictive displacement sensor is measured in the two-position that is used for injection moulding machine mould open mechanism, comprise the magnetostrictive displacement sensor main body 2 that is fixed on injection machine 1 frame, main body is equipped with guide rail 21 outward, guide rail 21 forward and backward front-slider 3 and the rear sliders 4 of being arranged with, front-slider 3 is provided with front rod 31, and the other end of front rod 31 is connected on the dynamic model 5 of injection machine 1, rear slider 4 is provided with rear connecting rod 41, and the other end of rear connecting rod 41 is connected on the ejecting mechanism 6 of injection machine 1; Dynamic model 5 drives front-slider 3 same moved further, and ejecting mechanism 6 drives rear slider 4 same moved further; During work, forward and backward slide block 3,4 by shift in position respectively with guide rail 21 in the waveguide filament effect produce independently strain-pulse signal; Magnetostrictive displacement sensor inside is provided with electronic circuit and the D/A converting circuit of handling pulse signal, and D/A converting circuit is directly exported two independent 0-10V dc voltage signal.
Operation principle: when die sinking, two detect slide block moves simultaneously, under the processing controls of internal circuit, have only corresponding the changing of signal that produces with the synchronization-moving front-slider 3 of dynamic model, treated signal feedback is in D/A converting circuit, the voltage signal that D/A converting circuit road output wherein changes, its output signal is to change from 10v-0v, then remains unchanged with the signal and the corresponding digital-to-analogue conversion voltage output signal thereof of ejecting mechanism 6 synchronization-moving rear sliders 4;
When the demoulding, after injection moulding was finished, in the time of finished product need being ejected, this moment, the dynamic model of injection machine was static, and ejecting mechanism 6 moves and product is ejected, and in this process, signal that slide block 3 produces and corresponding digital-to-analogue conversion voltage output signal thereof remain unchanged; Then change the voltage signal that the defeated 0-10v of output changes with the signal and the corresponding digital-to-analogue conversion voltage output signal thereof of the synchronization-moving rear slider 4 of ejecting mechanism.
The design's sensor satisfies the control requirement of the existing control system of injection machine, does not need existing controller is carried out technological improvement, and adopts outlet structure, installs simple and reliable on injection machine.
Preferably, described sensor adopts 16 figure place weighted-voltage D/A converters (D/A converter), satisfy the high accuracy control requirement of injection machine, measure the two-way position simultaneously on the sensor, replace two electronic rulers, its uniformity, repeatability are higher, in addition, as required, also can adopt the digital to analog converter of other numerical digit.
The above be the utility model preferred embodiment, it does not constitute the restriction to the utility model protection domain, so long as realize that with essentially identical means the purpose of this utility model all should belong to protection domain of the present utility model.
Claims (2)
1. magnetostrictive displacement sensor is measured in the two-position that is used for injection moulding machine mould open mechanism, it is characterized in that: comprise the magnetostrictive displacement sensor main body (2) that is fixed on injection machine (1) frame, main body is equipped with guide rail (21) outward, guide rail (21) is preceding, after be arranged with front-slider (3) and rear slider (4), front-slider (3) is provided with front rod (31), the other end of front rod (31) is connected on the dynamic model (5) of injection machine (1), rear slider (4) is provided with rear connecting rod (41), and the other end of rear connecting rod (41) is connected on the ejecting mechanism (6) of injection machine (1); Dynamic model (5) drives the same moved further of front-slider (3), and ejecting mechanism (6) drives the same moved further of rear slider (4); During work, forward and backward slide block (3,4) by shift in position respectively with guide rail (21) in the waveguide filament effect produce independently strain-pulse signal; Magnetostrictive displacement sensor inside is provided with electronic circuit and the D/A converting circuit of handling pulse signal, and D/A converting circuit is directly exported two independent 0-10V dc voltage signal.
2. magnetostrictive displacement sensor is measured in the two-position that is used for injection moulding machine mould open mechanism according to claim 1, and it is characterized in that: described D/A converting circuit is 16 figure place weighted-voltage D/A converters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206353729U CN201900714U (en) | 2010-12-01 | 2010-12-01 | Double-position measuring magnetostriction displacement sensor for mold opening mechanism of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206353729U CN201900714U (en) | 2010-12-01 | 2010-12-01 | Double-position measuring magnetostriction displacement sensor for mold opening mechanism of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201900714U true CN201900714U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206353729U Expired - Lifetime CN201900714U (en) | 2010-12-01 | 2010-12-01 | Double-position measuring magnetostriction displacement sensor for mold opening mechanism of injection molding machine |
Country Status (1)
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| CN (1) | CN201900714U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042670A (en) * | 2012-12-17 | 2013-04-17 | 宁波弘讯科技股份有限公司 | Automatic data sampling system of elbow injection molding machine |
| CN103673858A (en) * | 2013-12-12 | 2014-03-26 | 同济大学 | Dynamic measurement device for shield tunnel lining segment joint wrong lifting |
-
2010
- 2010-12-01 CN CN2010206353729U patent/CN201900714U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042670A (en) * | 2012-12-17 | 2013-04-17 | 宁波弘讯科技股份有限公司 | Automatic data sampling system of elbow injection molding machine |
| CN103042670B (en) * | 2012-12-17 | 2015-07-08 | 宁波弘讯科技股份有限公司 | Automatic data sampling system of elbow injection molding machine |
| CN103673858A (en) * | 2013-12-12 | 2014-03-26 | 同济大学 | Dynamic measurement device for shield tunnel lining segment joint wrong lifting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |