CN108955850B - The automatic method for obtaining metering preset value for dosing machine - Google Patents

The automatic method for obtaining metering preset value for dosing machine Download PDF

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Publication number
CN108955850B
CN108955850B CN201810735455.6A CN201810735455A CN108955850B CN 108955850 B CN108955850 B CN 108955850B CN 201810735455 A CN201810735455 A CN 201810735455A CN 108955850 B CN108955850 B CN 108955850B
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CN
China
Prior art keywords
stage
dose
assignment
value
stage dose
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CN201810735455.6A
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Chinese (zh)
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CN108955850A (en
Inventor
王瑞祥
林锦
刘鹏飞
叶琦
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川田机械制造(上海)有限公司
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Publication of CN108955850A publication Critical patent/CN108955850A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/62—Over or under weighing apparatus

Abstract

The method for measuring preset value is obtained for the automatic of dosing machine the present invention relates to a kind of, the method measures preset value program the following steps are included: (1) before the metering for carrying out dosing machine, starts automatic obtain；(2) to first stage Dose times and second stage Dose times parameter assignment, and a measuration is carried out according to first stage Dose times and second stage Dose times；(3) after the secondary measuration, practical weighing value is obtained, and the first stage Dose times of the secondary measuration, second stage Dose times and practical weighing value are stored；(4) judge measuration number and set the size of number, if measurement number is less than setting number, reenter step (2)；If measuring number is greater than or equal to setting number, drop value, second stage blanking flow and first stage blanking flow are obtained according to storage numerical value, metering preset value is obtained according to the drop value, second stage blanking flow.

Description

The automatic method for obtaining metering preset value for dosing machine

Technical field

The present invention relates to field of measuring techniques, in particular to a kind of automatic sides for obtaining metering preset value for dosing machine Method.

Background technique

The same gauge assembly of conventional metered dose machine generally requires to carry out large and small metering in the case where single measures biggish occasion It is used cooperatively, i.e., the cooperation of thick metering and essence metering.Big metering meets metrology capability, and small measurement+drop realizes measuring accuracy.

And with this condition, need to set a metering preset value, i.e. value " before quantitative ", when the weighing value of weigher is When measuring total value-metering preset value, quantitative model will switch to small measurement by measuring greatly.

Dosing machine currently on the market, generally manual setting measure preset value.Due to measuring the too big of default settings It will affect metrology capability, the too small of setting will affect measuring accuracy, therefore time-consuming and laborious when manual setting, some debugging are unreasonable Also will affect measuring accuracy or ability.

Summary of the invention

The purpose of the present invention is overcoming the above-mentioned prior art, provides and a kind of save that artificial, speed is fast, quasi- Really, the automatic method for obtaining metering preset value for dosing machine of measuring accuracy and ability is taken into account.

To achieve the goals above, the present invention provides a kind of automatic sides for obtaining metering preset value for dosing machine Method is mainly characterized by, the method the following steps are included:

(1) before the metering for carrying out dosing machine, start automatic obtain and measure preset value program；

(2) to first stage Dose times and second stage Dose times parameter assignment, and when being measured according to the first stage Between and second stage Dose times carry out a measuration；

(3) after the secondary measuration, when obtaining practical weighing value, and the first stage of the secondary measuration being measured Between, second stage Dose times and practical weighing value storage；

(4) judge measuration number and set the size of number, if measurement number is less than setting number, reenter step Suddenly (2) continue step (3) and (4) first stage Dose times and second stage Dose times parameter again assignment；

If measuring number is greater than or equal to setting number, drop value, second stage blanking flow are obtained according to storage numerical value And first stage blanking flow, metering preset value is obtained according to the drop value, second stage blanking flow.

Preferably, in the step (4) set number be at least three times, and according to storage numerical value obtain drop value, Second stage blanking flow and first stage blanking flow, specifically include:

According to formula: Q1×t1+Q2×t2+ Z=W obtains drop value, second stage blanking flow and first stage blanking Flow,

In formula, t1For first stage Dose times, t2For second stage Dose times, Q1For first stage blanking flow, Q2 For second stage blanking flow, Z is drop value, and W is practical weighing value.

Preferably, being assigned again in the step (4) to first stage Dose times and second stage Dose times parameter Value includes to one in first stage Dose times and second stage Dose times again assignment or when measuring to the first stage Between and second stage Dose times assignment again.

Preferably, when the step (2) is to first stage Dose times and second stage Dose times parameter assignment When the first assignment of first stage Dose times, the first assignment of second stage Dose times, and sentence in the step (4) Disconnected measuration number is less than setting number, by first stage Dose times and second stage Dose times parameter again assignment At:

The first assignment of the first stage Dose times and the assignment again of second stage Dose times, described The assignment again of two-stage Dose times is greater than the first assignment of the second stage Dose times, or

The assignment again of the assignment again of first stage Dose times and the second stage Dose times, described The assignment again of one stage Dose times is different from the first assignment of the first stage Dose times.

Preferably, the value for being assigned a value of that the drop value can be made to remain unchanged of the second stage Dose times.

Preferably, when carrying out actual metered, according to metering preset value=Q2× t+Z obtains actual metered preset value, and t is The actual setpoint of second stage Dose times.

Using the automatic method for obtaining metering preset value for dosing machine of the invention, it can be used for valve plate dosing machine Metering process is saved manually, and speed is fast, and it is accurate to calculate, and can take into account measuring accuracy and ability.

Detailed description of the invention

Fig. 1 is the flow diagram of the automatic method for obtaining metering preset value for dosing machine of the invention.

Specific embodiment

It is further to carry out combined with specific embodiments below in order to more clearly describe technology contents of the invention Description.

The present invention provides a kind of automatic methods for obtaining metering preset value for dosing machine, wherein the method packet Include following steps:

(1) before the metering for carrying out dosing machine, start automatic obtain and measure preset value program；

(2) to first stage Dose times and second stage Dose times parameter assignment, and when being measured according to the first stage Between and second stage Dose times carry out a measuration；

(3) after the secondary measuration, when obtaining practical weighing value, and the first stage of the secondary measuration being measured Between, second stage Dose times and practical weighing value storage；

(4) judge measuration number and set the size of number, if measurement number is less than setting number, reenter step Suddenly (2), to first stage Dose times and second stage Dose times parameter again assignment, continue the step (3) and (4)；

If measuring number is greater than or equal to setting number, drop value, second stage blanking flow are obtained according to storage numerical value And first stage blanking flow, metering preset value is obtained according to the drop value, second stage blanking flow.

As shown in Figure 1, in the step (4) set number be at least three times, and according to storage numerical value obtain drop Value, second stage blanking flow and first stage blanking flow, specifically include:

According to formula: Q1×t1+Q2×t2+ Z=W obtains drop value, second stage blanking flow and first stage blanking Flow,

In formula, t1For first stage Dose times, t2For second stage Dose times, Q1For first stage blanking flow, Q2 For second stage blanking flow, Z is drop value, and W is practical weighing value.

It include pair to first stage Dose times and second stage Dose times parameter again assignment in the step (4) One in first stage Dose times and second stage Dose times assignment or to first stage Dose times and second again Stage Dose times assignment again, it is excellent when to first stage Dose times and second stage Dose times assignment again Selection of land does not include assignment again in proportion.

When the step (2) is the first stage to first stage Dose times and second stage Dose times parameter assignment When the first assignment of Dose times, the first assignment of second stage Dose times, and judgement metering is surveyed in the step (4) Determine number and be less than setting number, by first stage Dose times and second stage Dose times parameter again assignment at:

The first assignment of the first stage Dose times and the assignment again of second stage Dose times, described The assignment again of two-stage Dose times is greater than the first assignment of the second stage Dose times, or

The assignment again of the assignment again of first stage Dose times and the second stage Dose times, described The assignment again of one stage Dose times is different from the first assignment of the first stage Dose times.

Preferably, after carrying out measuration three times, available three equations:

Q1×t1+Q2×t2+ Z=W1；

Q1×t1+Q2×t2'+Z=W2；

Q1×t1’+Q2×t2'+Z=W3；

Wherein, Z is drop value, and W is practical weighing value, Q1And Q2It is to depend on material self character and mechanical structure, right When same or similar material carries out measuration, it is considered as fixed value, t1For the first assignment of first stage Dose times, t1' it is the The assignment again of one stage Dose times, t2For the first assignment of second stage Dose times, t2' it is second stage Dose times Assignment again, three equations that above-mentioned three kinds of assignment modes form be preferred embodiment.

Also may include equation:

Q1×t1”+Q2×t2"+Z=W4；

The equation and any two of above three equation constitute new assignment mode, equally can achieve and are fallen The purpose of difference, second stage blanking flow and first stage blanking flow, as long as therefore changing two stage Dose times Parameter carries out metering and obtains corresponding practical weighing value, minimum to measure three times, ternary linear function group can be formed, to obtain institute Drop value, second stage blanking flow and the first stage blanking flow needed.

The value for being assigned a value of that the drop value can be made to remain unchanged of the second stage Dose times, Z value is In the case that two-stage Dose times/small measurement time/essence Dose times are sufficiently large, also it is considered as and remains unchanged, described second The first assignment of stage Dose times ensures to carry out drop movement in the case where second stage metering/small measurement is stablized and determines.

When carrying out actual metered, according to metering preset value=Q2× t+Z obtains actual metered preset value, and t is second-order The actual setpoint of section Dose times.Q can be automatically obtained by above-mentioned steps2It should not people again when carrying out actual metered with Z value Work calculates, and speed is fast, and it is accurate to calculate.

Using the automatic method for obtaining metering preset value for dosing machine of the invention, saving is artificial, and speed is fast, It is accurate to calculate, and can take into account measuring accuracy and ability.

In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, specification should be considered as illustrative rather than limit Property processed.

Claims (5)

1. a kind of automatic method for obtaining metering preset value for dosing machine, which is characterized in that the method includes following Step:
(1) before the metering for carrying out dosing machine, start automatic obtain and measure preset value program；
(2) to first stage Dose times and second stage Dose times parameter assignment, and according to first stage Dose times and Second stage Dose times carry out a measuration；
(3) after the secondary measuration, obtain practical weighing value, and by the first stage Dose times of the secondary measuration, Second stage Dose times and practical weighing value store；
(4) judge measuration number and set the size of number, the number that sets is at least three times, if measurement number is small In setting number, step (2) are reentered, to first stage Dose times and second stage Dose times parameter again assignment, Continue the step (3) and (4)；
If measurement number be greater than or equal to setting number, according to storage numerical value obtain drop value, second stage blanking flow and First stage blanking flow, specifically includes:
According to formula: Q1×t1+Q2×t2+ Z=W obtains drop value, second stage blanking flow and first stage blanking flow,
In formula, t1For first stage Dose times, t2For second stage Dose times, Q1For first stage blanking flow, Q2It is Two-stage blanking flow, Z are drop value, and W is practical weighing value；
It is pre- that metering is obtained according to the actual setpoint of the drop value, second stage blanking flow, second stage Dose times If value.
2. the automatic method for obtaining metering preset value according to claim 1 for dosing machine, which is characterized in that described The step of (4) in include being measured to the first stage to first stage Dose times and second stage Dose times parameter again assignment One in time and second stage Dose times assignment or to first stage Dose times and second stage Dose times again Assignment again.
3. obtaining the method for measuring preset value for the automatic of dosing machine according to claim 1 or described in 2, feature exists In when the step (2) is first stage metering to first stage Dose times and second stage Dose times parameter assignment When the first assignment of time, the first assignment of second stage Dose times, and judge that measuration is secondary in the step (4) Number is less than setting number, by first stage Dose times and second stage Dose times parameter again assignment at:
The first assignment of the first stage Dose times and the assignment again of second stage Dose times, the second-order The assignment again of section Dose times is greater than the first assignment of the second stage Dose times, or
The assignment again of the assignment again of first stage Dose times and the second stage Dose times, first rank The assignment again of section Dose times is different from the first assignment of the first stage Dose times.
4. the automatic method for obtaining metering preset value according to claim 1 for dosing machine, which is characterized in that described Second stage Dose times the value for being assigned a value of that the drop value can be made to remain unchanged.
5. the automatic method for obtaining metering preset value according to claim 1 for dosing machine, which is characterized in that into When row actual metered, according to metering preset value=Q2× t+Z obtains actual metered preset value, and t is the reality of second stage Dose times Border setting value.
CN201810735455.6A 2018-07-06 2018-07-06 The automatic method for obtaining metering preset value for dosing machine CN108955850B (en)

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CN201810735455.6A CN108955850B (en) 2018-07-06 2018-07-06 The automatic method for obtaining metering preset value for dosing machine
PCT/CN2019/091944 WO2020007195A1 (en) 2018-07-06 2019-06-19 Automatic dosing default value acquisition method for dosing machine

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Publication number Priority date Publication date Assignee Title
CN108955850B (en) * 2018-07-06 2019-08-27 川田机械制造(上海)有限公司 The automatic method for obtaining metering preset value for dosing machine

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CN103968924A (en) * 2014-05-28 2014-08-06 重庆大学 Multistage-control-based batching weighing control method
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Publication number Priority date Publication date Assignee Title
CN1217465A (en) * 1997-11-06 1999-05-26 南京大学 Method of weighing counter-balancing for bulk and apparatus thereof
JP2012063263A (en) * 2010-09-16 2012-03-29 Yamato Scale Co Ltd Quantitative supply device
CN102615710A (en) * 2012-03-28 2012-08-01 中联重科股份有限公司 Proportioning material metering method, proportioning weight controller, system and concrete mixing plant
CN103968924A (en) * 2014-05-28 2014-08-06 重庆大学 Multistage-control-based batching weighing control method
CN105136265A (en) * 2015-08-21 2015-12-09 济南新瑞安迪自动化有限公司 Precision metering method for weighing and burdening
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