CN202562586U

CN202562586U - Weight reduction flow measuring system

Info

Publication number: CN202562586U
Application number: CN2012202256911U
Authority: CN
Inventors: 蔡金辉; 许其琨
Original assignee: ZHANGZHOU JIELONG AUTOMATION TECHNOLOGY CO LTD
Current assignee: ZHANGZHOU JIELONG AUTOMATION TECHNOLOGY CO LTD
Priority date: 2012-05-20
Filing date: 2012-05-20
Publication date: 2012-11-28
Anticipated expiration: 2022-05-20

Abstract

The utility model provides a weight reduction flow measuring system, which comprises a weighing apparatus and a control apparatus, the weighing apparatus comprise a load receptor, a sensor and a material barrel, the control apparatus comprises a control unit and a valve, the control unit comprises a control instrument and a control circuit; the material barrel is placed on the load receptor for weighting, a weight reduction measuring mode is used for instantly and accumulatively collecting the material flow, a weight signal collected by the sensor is transmitted to the control unit, and the control unit control a valve switch according to the signal for feeding. According to the utility model , the weight reduction measuring mode is used for instantly and accumulatively collecting the material without influences due to viscosity, solidification conductivity and the like of the material, and the weight reduction flow measuring system has the advantages of high precision, good stability, easy maintenance and wide market prospect.

Description

The loss of weight flow measuring system

Technical field

The utility model belongs to a kind of material metering system, particularly a kind of system that the flow of glue class I liquid I is measured.

Background technology

Existing material metering particularly liquid gaging system generally adopts pipeline flow metering method; This method is incipient or accurately more stable; But receive the influence of material viscosity; Particularly grown stop time sometimes, and the material of pipeline the inside has partial coagulation, makes pipeline flowmeter malfunctioning easily like this; The product that has is bitubular coding metering, and the major defect of this metering method has several aspects: though 1, metering cylinder has two, and is too little, make the increased frequency that adds material, electrical equipment easy to wear; 2, this metering method needs the artificial table of pinching to calculate and use volume, then according to volume calculated flow rate, troublesome poeration so again; And reaction is not current real-time instantaneous delivery; The operator just can not get the real-time and effective data like this, and control is got up cumbersome, can only control by experience.

Along with constantly raising up of industrial materials prices; The ratio that material accounts for total production cost also constantly improves, and is just paid attention to by enterprise like the control of resin added in the MDF, and each side's production board is often executed one or two kilograms of glue even more more; Article one, the production line of producing 50000 sides per year was just wasted at least tens tons glue in 1 year; Be worth hundreds thousand of units, not only cause huge waste, and the whether even quality of production that directly influences sheet material of applying glue.

Summary of the invention

For overcoming above-mentioned shortcoming; The utility model provides a kind of loss of weight flow measuring system, adopts loss of weight formula metering method that material is carried out collection instantaneous and accumulative total, does not receive the factor affecting such as viscosity, curing conductive performance of material; Have precision height, good stability, characteristics such as easy care.

The purpose of the utility model is achieved in that the utility model comprises weighing device and control device; Described weighing device comprises scale frame, sensor and material barrel; Described control device comprises control module and valve, and control module comprises control instrument and control circuit; Material barrel is placed on the scale frame and weighs, and adopts loss of weight formula metering method that mass flow is carried out collection instantaneous and accumulative total, through sensor the weight signal that collects is transferred to control module, and control module feeds in raw material with this signal controlling valve switch.

As preferably, described control instrument adopts the single-chip microcomputer instrument, fast operation, and strong interference immunity, easy to operate.

As preferably, described scale frame adopts all electronic structure scale body.

As preferably, described valve is an operated pneumatic valve, and CS process and speed are faster, and guarantees the degree of accuracy of metering.

The beneficial effect of the utility model is:

1, the utility model can be applicable to continuous coverage liquid, the volume and the weight of the shape solid feeding that looses, for example water, glue, powder, particle, sheet, thin slice and fiber have characteristics such as powerful, reliability height;

2, adopt loss of weight formula metering method, instantaneous delivery, cumulative amount etc. does not receive the influence of the characteristic of testee, as: the influence of viscosity, corrosivity etc.Application is quite extensive;

3, through high speed acquisition weight change value constantly, realize high-precision measuring, the control of flow, feeding capacity accumulative total.

4, handled easily person has not only practiced thrift great deal of raw materials to the control of material, has reduced production cost, and has improved product quality, makes properties of product stable, improves product percent of pass;

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among the figure 1, the scale frame, 2, sensor, 3, material barrel, 4, control instrument, 5, valve.

Embodiment

With reference to shown in Figure 1: the utility model comprises weighing device and control device, and described weighing device comprises scale frame 1, sensor 2 and material barrel 3, and described control device comprises control module and valve 5, and control module comprises control instrument 4 and control circuit; Material barrel 3 is placed on the scale frame 1 and weighs; Adopt loss of weight formula metering method that mass flow is carried out collection instantaneous and accumulative total; Through sensor 2 weight signal that collects is transferred to control instrument 4, control instrument 4, feeds in raw material through control circuit by-pass valve control 5 switches with this.

Suppose just to begin to claim material barrel (in material is housed) weight be M1; Sampling period is T, after a sampling period, claims to such an extent that the weight of material barrel is M2; Then the computing formula of material instantaneous delivery is: instantaneous delivery=(M1-M2)/and T, the sampling period can freely be set as required.

Can know that by above formula the mass flow that records does not receive feeding pipe, executes the wearing and tearing of material pump etc. or the influence of obstruction, this point is that propeller flowmeter, electromagnetic flowmeter etc. can't be accomplished.Therefore the data on flows that records through the utility model is very true, accurate.

When the weight of material barrel 3 reduced to the lower limit of setting, control instrument 4 by-pass valve controls 5 fed in raw material, and counted integrated flow with instantaneous delivery before reinforced; When material is added to the upper limit gravimetric value of setting, turn off reinforced valve 5, through a period of time; Etc. weight stable after, control instrument 4 adopts loss of weight formula metering method measurement of discharge again, goes round and begins again; Reach continuously and add up accurately, the purpose of control inventory.

Described control instrument adopts the single-chip microcomputer instrument; Described scale frame adopts all electronic structure scale body; Described valve is an operated pneumatic valve.

Above embodiment only is used to explain the utility model; But not to the restriction of the utility model; Under the situation of spirit that does not break away from the utility model and scope, can also make various variations, so all technical schemes that are equal to also belong to the category of the utility model.

Claims

1. loss of weight flow measuring system; Comprise weighing device and control device; It is characterized in that: described weighing device comprises scale frame (1), sensor (2) and material barrel (3); Described control device comprises control module and valve (5), and control module comprises control instrument (4) and control circuit; Material barrel (3) is placed on the scale frame (1), adopts loss of weight formula metering method that mass flow is carried out collection instantaneous and accumulative total, through sensor (2) weight signal that collects is transferred to control module, and control module is with this signal controlling valve (5) switch.

2. a kind of loss of weight flow measuring system according to claim 1 is characterized in that: described control instrument (4) adopts single-chip microcomputer instrument (4).

3. a kind of loss of weight flow measuring system according to claim 1 and 2 is characterized in that: described scale frame (1) adopts all electronic structure scale body.

4. a kind of loss of weight flow measuring system according to claim 3 is characterized in that: described valve (5) is an operated pneumatic valve (5).

5. a kind of loss of weight flow measuring system according to claim 1 and 2 is characterized in that: described valve (5) is an operated pneumatic valve (5).