阅读说明：本技术 一种自动包装机定量在线反馈系统及方法 (Quantitative online feedback system and method for automatic packaging machine ) 是由 冯伟明 洪坚 于 2020-05-19 设计创作，主要内容包括：本发明提供了一种自动包装机定量在线反馈系统及方法,包括包装机和实时反馈动态称,包装机包括控制模块,其中：实时反馈动态称实时反馈物料的重量数据至所述控制模块；所述控制模块接收所述重量数据,并与设定的定量控制点比较,若没有超出允许偏差量,则不进行调整；若超出允许偏差量,则进行数据修正,得出物料的变化趋势,调整设定的定量控制点。本发明能够在线动态连续的反馈实时包装重量给包装机的定量控制系统,本发明通过包装机的CPU,经过把采集的数据线性化处理,经过DIP参数修正,最终得出物料在包装过程中随着物料温度,时间,压力变化而引起的趋势,实时的改变包装的定量控制点。(The invention provides a quantitative online feedback system and method for an automatic packaging machine, which comprises a packaging machine and a real-time feedback dynamic scale, wherein the packaging machine comprises a control module, wherein: feeding back the weight data of the materials to the control module in real time by the dynamic scale in real time; the control module receives the weight data, compares the weight data with a set quantitative control point, and does not adjust if the weight data does not exceed an allowable deviation amount; and if the deviation exceeds the allowable deviation, correcting the data to obtain the change trend of the material, and adjusting the set quantitative control point. The invention can dynamically and continuously feed back real-time packaging weight to a quantitative control system of a packaging machine on line.)

1. The utility model provides an automatic online feedback system of packagine machine ration which characterized in that, including packagine machine and real-time feedback developments title, packagine machine includes control module, wherein:

feeding back the weight data of the materials to the control module in real time by the dynamic scale in real time;

the control module receives the weight data, compares the weight data with a set quantitative control point, and does not adjust if the weight data does not exceed an allowable deviation amount; and if the deviation exceeds the allowable deviation, correcting the data to obtain the change trend of the material, and adjusting the set quantitative control point.

2. The quantitative online feedback system of an automatic packaging machine according to claim 1, wherein the data correction comprises a PID parameter correction, and a quantitative control point is obtained by PID adjustment according to the variation of time and weight.

3. The quantitative online feedback system of an automatic packaging machine according to claim 1, wherein the trend of change comprises a trend of the material along with changes of temperature, time and pressure of the material during the packaging process.

4. The quantitative online feedback system of an automatic packaging machine according to claim 1, wherein the real-time feedback dynamic scale feeds back weight data of the material to the control module in real time through CAN-BUS communication.

5. An automatic packaging machine quantitative on-line feedback method based on the automatic packaging machine quantitative on-line feedback system according to any one of claims 1 to 4, characterized by comprising the steps of:

real-time quality measurement: feeding back the weight data to a packaging machine in real time, wherein the packaging machine responds according to the fed back weight data and packages the product with qualified weight;

data statistics step: the data of the packaged product is transmitted to a control module, the control module carries out linear processing on the acquired data, the trend of the material caused by the change of the temperature, time and pressure of the material in the packaging process is obtained through the correction of the DIP parameters, and the quantitative control point of the packaging is changed in real time;

a real-time adjustment step: comparing the volume value of the actual package with a set quantitative control point, judging whether the difference value of the volume value and the set quantitative control point exceeds an allowable deviation amount, and if the difference value does not exceed the allowable deviation amount for a plurality of times, not adjusting; and if the allowable deviation amount is exceeded for a plurality of times, adjusting the set quantitative control point.

6. The quantitative on-line feedback method of an automatic packaging machine according to claim 5,

let a1, a 2.. An denote n data that are exceeded several times in succession before the allowable deviation amount, then there are: k1 ═ a2-a1/t1, K2 ═ A3-a2/t2. K represents a linearization parameter; t represents the time of two consecutive measurements;

if the allowable deviation is exceeded for a plurality of consecutive times, the quantitative control point X1 is adjusted to X2, then: x2 ═ X1(1+ K).

Technical Field

The invention relates to the field of food packaging, in particular to a quantitative online feedback system and method of an automatic packaging machine.

Background

At present, signals for measuring the liquid level of a filled object are selected as filling and metering means on a high-temperature filling viscous paste packaging machine, and the volumetric metering mode can cause the deviation of the packaging weight due to the density change of materials caused by the temperature, time, pressure and other reasons of the materials.

And (3) sticky paste packaging, namely filling the sticky paste into a formed packaging bag, wherein the process can be divided into normal-temperature filling and high-temperature filling. The packaging is taken as a key step of food safety, high-temperature filling is a necessary condition for ensuring the food safety, but the inaccurate packaging weight caused by the large characteristic change of high-temperature materials is more prominent, and the problem is urgently solved.

Application number 201620688500.3's utility model relates to a packing scale especially relates to a product weight measurement packing scale for feed factory. The to-be-solved technical problem of the utility model is to provide a product weight measurement packing scale is used in feed factory that simple structure, cost of maintenance are low. In order to solve the technical problem, the utility model provides a such product weight measurement packing scale is used in feed factory, which comprises a support, a workbench, spring I, place the board, the rack, branch I, the gear, belt pulley I, and a support, a slide rail, the slider, the fixed plate, spring II, the red light, the green light, travel switch I, travel switch II, branch II, electronic reel, belt pulley II and act as go-between, two support tops are equipped with the workstation, open in the workstation left side has the aperture, aperture left and right sides symmetry is equipped with spring I, I top of spring is equipped with places the board, it is equipped with the rack to place board bottom center, the rack is located directly over the aperture. The utility model discloses simple structure, effect that cost of maintenance is low have been reached. However, the above scheme is not applicable to measurement of a mucous paste.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a quantitative online feedback system and method for an automatic packaging machine.

The invention provides a quantitative online feedback system of an automatic packaging machine, which comprises the packaging machine and a real-time feedback dynamic scale, wherein the packaging machine comprises a control module, wherein:

feeding back the weight data of the materials to the control module in real time by the dynamic scale in real time;

the control module receives the weight data, compares the weight data with a set quantitative control point, and does not adjust if the weight data does not exceed an allowable deviation amount; and if the deviation exceeds the allowable deviation, correcting the data to obtain the change trend of the material, and adjusting the set quantitative control point.

Preferably, the data correction comprises PID parameter correction, and the quantitative control point is obtained through PID regulation according to the time and weight variation.

Preferably, the trend of change comprises the trend of the materials along with the change of the temperature, time and pressure of the materials in the packaging process.

Preferably, the real-time feedback dynamic scale feeds back the weight data of the material to the control module in real time through CAN-BUS communication.

According to the quantitative online feedback method of the automatic packaging machine based on the quantitative online feedback system of the automatic packaging machine, provided by the invention, the method comprises the following steps:

real-time quality measurement: feeding back the weight data to a packaging machine in real time, wherein the packaging machine responds according to the fed back weight data and packages the product with qualified weight;

data statistics step: the data of the packaged product is transmitted to a control module, the control module carries out linear processing on the acquired data, the trend of the material caused by the change of the temperature, time and pressure of the material in the packaging process is obtained through the correction of the DIP parameters, and the quantitative control point of the packaging is changed in real time;

a real-time adjustment step: comparing the volume value of the actual package with a set quantitative control point, judging whether the difference value of the volume value and the set quantitative control point exceeds an allowable deviation amount, and if the difference value does not exceed the allowable deviation amount for a plurality of times, not adjusting; and if the allowable deviation amount is exceeded for a plurality of times, adjusting the set quantitative control point.

Preferably, if a1, a 2.. An indicates n data before exceeding the allowable deviation amount several times in succession, then there are: k1 ═ a2-a1/t1, K2 ═ A3-a2/t2. K represents a linearization parameter; t represents the time of two consecutive measurements; if the allowable deviation is exceeded for a plurality of consecutive times, the quantitative control point X1 is adjusted to X2, then: x2 ═ X1(1+ K).

Compared with the prior art, the invention has the following beneficial effects:

1. the invention can dynamically and continuously feed back the real-time packaging weight to a quantitative control system of the packaging machine on line, so that the packaging machine can make a response according to feedback data at the fastest speed, produce products with qualified weight, improve the production efficiency, save labor force and be more humanized.

2. The invention finally obtains the trend of the material caused by the change of the temperature, time and pressure of the material in the packaging process through the CPU of the packaging machine, the linearization processing of the acquired data and the correction of DIP parameters, and changes the quantitative control point of the packaging in real time.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the quantitative on-line feedback system of an automatic packaging machine;

fig. 2 is a flow chart of the steps of the quantitative on-line feedback method of the automatic packaging machine.

The figures show that:

packaging machine 1

Real-time feedback dynamic scale 2

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

As shown in fig. 1 and 2, according to the quantitative online feedback system and method of the automatic packaging machine provided by the invention, the real-time packaging weight can be dynamically and continuously fed back to the quantitative control system of the packaging machine online, so that the packaging machine can respond to feedback data at the fastest speed, products with qualified weight are produced, the production efficiency is improved, the labor force is saved, and the automatic packaging machine is more humanized. The packaged product is measured by a real-time feedback dynamic scale, data are transmitted to a CPU of a packaging machine through CAN-BUS communication, collected data are subjected to linearization processing, and the trend of the material caused by the change of the temperature, time and pressure of the material in the packaging process is finally obtained through DIP parameter correction, so that the quantitative control point of the packaging is changed in real time. The numerical value linearization is an important technical link, and different linearization parameters can be selected according to different filling raw materials and packing material characteristics to achieve the best effect. In actual weighing, according to the formula: determining an allowable deviation amount by Δ PV-SP, wherein: PV represents an actual value, SP represents a set value, and delta P represents an allowable deviation amount, counting is started when delta PV < delta P, when deviation occurs in two continuous packets, a weight control point is modified according to a linearization parameter K, and then the modified weight control point is output to an actuating mechanism. Specifically, if a1, a 2.. An represents n data before exceeding the allowable deviation amount several times in succession, then: k1 ═ a2-a1/t1, K2 ═ A3-a2/t2. K represents a linearization parameter; t represents the time of two consecutive measurements; if the allowable deviation is exceeded for a plurality of consecutive times, the quantitative control point X1 is adjusted to X2, then: x2 ═ X1(1+ K).

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.