CN101537692A - Injection pressure monitoring method of full electric injection molding machine - Google Patents
Injection pressure monitoring method of full electric injection molding machine Download PDFInfo
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- CN101537692A CN101537692A CN200910097768A CN200910097768A CN101537692A CN 101537692 A CN101537692 A CN 101537692A CN 200910097768 A CN200910097768 A CN 200910097768A CN 200910097768 A CN200910097768 A CN 200910097768A CN 101537692 A CN101537692 A CN 101537692A
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Abstract
The invention relates to an injection pressure monitoring method of a full electric injection molding machine, comprising the following steps of: (1) setting of a monitoring initial curve for injection pressure, with the longitudinal coordinate of monitoring value of injection pressure and horizontal ordinate of injection position; (2) setting of a monitoring curve for injection pressure; and (3) monitoring of practical injection pressure. The method has the advantages that a stepped pressure monitoring curve is formed for a pressure curve in the normal injection process, therefore, in the practical production process, once the injection pressure reaches monitoring pressure, the injection molding machine stops the injection actions immediately and gives an alarm, thus effectively preventing serious results that the mold and equipment are damaged due to abnormal high pressure.
Description
Technical field
The present invention relates to a kind of injection pressure monitoring of full electric injection molding machine.
Background technology
In injection moulding process, because conditions such as variations in temperature, runner obstruction change, the possibility of generation than high injection pressure arranged, this high pressure just might cause the serious consequence of mould even device damage.If this high pressure is not effectively monitored and control, just can't guarantee the ordinary production of injection machine, even can have very big accident.
Summary of the invention
Technical problem to be solved by this invention is to overcome the above-mentioned deficiency of prior art and injection pressure monitoring method that a kind of full electric injection molding machine is provided, makes its monitor force and prevent the generation of superpressure in real time.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
The injection pressure monitoring method of full electric injection molding machine, it comprises the steps:
(1) setting of injection pressure monitoring initial curve, its ordinate are the injection pressure monitoring value, and abscissa is an injection position,
(1), initially the injection pressure monitoring value can be changed setting arbitrarily, in order not influence normal process, generally is set at system's maximum pressure of machine;
(2), injection position is from " pressurize switching position " to " the screw rod pine is given up the throne and puts ", can gather client's technology automatically and set by injection machine, and be divided into 6 equal portions;
(3), determine " monitor force side-play amount ", it be artificially to set value, and in order not influence normal process, generally gets 20Mpa;
(2) setting of injection pressure monitoring curve
(1), obtain the actual pressure curve, ordinate is an actual pressure, and abscissa is with (one) according to the practical condition of injection machine,
(2), in above-mentioned actual pressure curve, select maximum force value in every section injection position, add " monitor force side-play amount ", obtain the monitor force value of this section injection position, 6 sections curves are linked together, form stair-stepping injection pressure monitoring curve;
(3) monitoring of actual injection pressure
According to the injection pressure monitoring curve of setting in (two), when the actual injection pressure of injection machine all in monitor force following time, the normal injection moulding of injection machine; When actual injection pressure surpassed monitor force, then injection machine was reported to the police to close and is stopped work.
Compared with prior art, the invention has the advantages that:
Form stepped pressure monitoring curve by pressure curve to normal injection process, thereby in actual production process, in case injection pressure arrives monitor pressures, injection machine stops action of injection at once and reports to the police, and has prevented effectively because abnormal pressure produces and the serious consequence of mold damage, equipment.
Description of drawings
Fig. 1 is the injection pressure monitoring original state figure of the embodiment of the invention.
Fig. 2 is the injection pressure monitoring state of activation figure of the embodiment of the invention.
Fig. 3 is the injection pressure monitoring abnormal alarm figure of the embodiment of the invention.
Fig. 4 is provided with injection pressure monitoring and the comparison diagram that injection pressure monitoring is not set.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
The injection pressure monitoring method of full electric injection molding machine, it may further comprise the steps:
(1) initial setting of injection pressure monitoring value
As Fig. 1 is injection pressure monitoring original state figure, wherein:
(1), straight line 5 is injection pressure monitoring initial pressure monitor curve, initial curve can be changed setting arbitrarily, in order not influence normal process, generally is set at system's maximum pressure of machine;
(2), " pressurize switching position " and " the screw rod pine is given up the throne and puts " for automatically gathering client's technique initialization, and calculate automatically and be divided into 6 equal portions;
(3), " monitor force side-play amount " be artificial setting value, in order not influence normal process, generally gets 20Mpa;
(4), " switch " be the function activation switch, in semi-automatic, Manufacturing Automated process, can come mobilizing function by opening this button.
(2) activation of injection pressure monitoring protection
As shown in Figure 2, the state of activation when having an effect for injection pressure monitoring, wherein:
(1), curve 6 is the actual pressure curve, the injection pressure curve that software can the up-to-date production cycle of real-time sampling upgrades;
(2), staircase curve 7 is the injection pressure monitoring curve;
(3), injection pressure monitoring monitor force side-play amount is initial setting, refers to the deviate of actual maximum pressure in the monitor force of this position section and this position section;
In semi-automatic, fully-automatic production process, press button activation injection pressure monitoring defencive function by " injection pressure monitoring switch "; when this function is activated; injection pressure monitoring control software can obtain the maximum pressure value in each position section automatically; and by calculating the monitor pressures value of relevant position section; each section monitor pressures curve being linked to each other forms staged pressure monitoring curve again, and the algorithm of each position section is as follows:
Maximum pressure value+injection pressure monitoring monitor force side-play amount in every section monitor pressures=each position section.
(3) unusual judgement
In injection moulding process, in case actual injection pressure just thinks that injection pressure is unusual after arbitrary position arrives corresponding injection pressure monitoring monitor pressures, deceleration stops action of injection, pine moves back and send the injection pressure monitoring abnormality alarm.As shown in Figure 3.
(4) warning recovers
After the injection pressure monitoring abnormal alarm took place, machine switched to manual state, and injection pressure monitoring pressure reverts to original state automatically, as shown in Figure 1.
Fig. 4 is the practical application figure of injection pressure monitoring method, wherein:
(1), curve 1 is the normal injection pressure curve, the pressure curve when curve 2 is unusual injection during the un-activation of injection pressure monitoring function, curve 3 be the pressure curve during the injection pressure monitoring function activation when injecting unusually;
(2), long straight line is the injection technique pressure set points, this value is set according to the product process requirements by the client, here setting value is 190Mpa;
Under normal stable situation, the injection pressure value is more stable, under the injection pressure monitoring monitor pressures, alarm can not take place all the time, and the injection pressure monitoring function does not influence normal process;
When change of external conditions such as generation runner obstruction, the slope ratio that injection pressure rises is big normally, if injection pressure monitoring does not activate, injection pressure deceleration when reaching setting value 190Mpa, pine move back, and surge pressure has reached 221Mpa, shown in curve 2; If during the injection pressure monitoring function activation, pressure curve triggers the injection pressure monitoring alarm at the 2nd ladder of injection pressure monitoring ladder protection curve, and surge pressure is 84Mpa, shown in curve 3.
As shown in Figure 4, injection pressure monitoring is set can judge unusual injection pressure in advance by stepped pressure monitoring, but does not influence normal injection technology.
Claims (2)
1, the injection pressure monitoring method of full electric injection molding machine is characterized in that: comprise the steps:
(1) setting of injection pressure monitoring initial curve, its ordinate are the injection pressure monitoring value, and abscissa is an injection position,
(1), determines initial injection pressure monitoring value according to the maximum pressure value of injection machine;
(2), injection position is from " pressurize switching position " to " the screw rod pine is given up the throne and puts " and be divided into 6 equal portions;
(3), determine " monitor force side-play amount ";
(2) setting of injection pressure monitoring curve
(1), obtain the actual pressure curve, ordinate is an actual pressure, and abscissa is with (one) according to the practical condition of injection machine,
(2), in above-mentioned actual pressure curve, select maximum force value in every section injection position, add " monitor force side-play amount ", obtain the monitor force value of this section injection position, 6 sections curves are linked together, form stair-stepping injection pressure monitoring curve;
(3) monitoring of actual injection pressure
According to the injection pressure monitoring curve of setting in (two), when the actual injection pressure of injection machine all in monitor force following time, the normal injection moulding of injection machine; When actual injection pressure surpassed monitor force, then injection machine was reported to the police to close and is stopped work.
2, the injection pressure monitoring method of full electric injection molding machine according to claim 1 is characterized in that: described " monitor force side-play amount " is 20Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910097768A CN101537692A (en) | 2009-04-17 | 2009-04-17 | Injection pressure monitoring method of full electric injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910097768A CN101537692A (en) | 2009-04-17 | 2009-04-17 | Injection pressure monitoring method of full electric injection molding machine |
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| CN101537692A true CN101537692A (en) | 2009-09-23 |
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| CN200910097768A Pending CN101537692A (en) | 2009-04-17 | 2009-04-17 | Injection pressure monitoring method of full electric injection molding machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107848176A (en) * | 2015-08-27 | 2018-03-27 | 艾姆弗勒克斯有限公司 | Injection forming equipment and its control method |
| CN110920010A (en) * | 2019-10-29 | 2020-03-27 | 上海澎睿智能科技有限公司 | Injection molding process production method based on big data analysis |
| CN111958933A (en) * | 2020-06-01 | 2020-11-20 | 海天塑机集团有限公司 | Injection molding self-adaptive compensation method based on melt viscosity fluctuation |
-
2009
- 2009-04-17 CN CN200910097768A patent/CN101537692A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107848176A (en) * | 2015-08-27 | 2018-03-27 | 艾姆弗勒克斯有限公司 | Injection forming equipment and its control method |
| CN110920010A (en) * | 2019-10-29 | 2020-03-27 | 上海澎睿智能科技有限公司 | Injection molding process production method based on big data analysis |
| CN110920010B (en) * | 2019-10-29 | 2021-10-19 | 上海澎睿智能科技有限公司 | Injection molding process production method based on big data analysis |
| CN111958933A (en) * | 2020-06-01 | 2020-11-20 | 海天塑机集团有限公司 | Injection molding self-adaptive compensation method based on melt viscosity fluctuation |
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Open date: 20090923 |