JPH0380049A - Dough control system - Google Patents

Abstract

PURPOSE:To uniform and stabilize qualities of processing dough and final product by detecting change of pressure given to roller by dough, subjecting the result to analytic treatment and controlling each machines constituting cake making and bread making line. CONSTITUTION:Change of deforming pressure of dough 3 passing through rollers is detected with the lapse of time by a road cell 5 installed in a pair of rollers 1 and 2 reversally each other rotating and the signal is input into CPU and subjected to control treatment and physical properties of each dough are analyzed and various machines and device for forming cake making and bread making line are controlled based on the result.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to changes in the pressure exerted by the dough on the rollers when the dough passes through a pair of rollers in the rolling/stretching process during the production of confectionery and bread. is detected, the signal is amplified, and input into the CPU (Central Processing Unit), which performs arithmetic processing to understand changes in the state of the dough, stores the physical properties of the dough, or displays it as necessary. Based on the processing results, each machine that makes up the confectionery/bread production line
The present invention relates to a fabric quality constant control system that adjusts a device to maintain constant quality of fabrics and products on the line.

[Prior art] The dough rolling and stretching process in confectionery and bread making processes is as follows:
For example, taking the bread making process as an example, the process is as follows.

Normally, after the dough is divided and rolled, the dough is given a certain amount of bench time using a proofer.
The dough is introduced from the molder's input port by a conveyor, etc., and after being pre-rolled by the first roller of the molder, the second roller performs rolling and stretching suitable for the bread dough, and then moves on to the subsequent process. Refers to the process.

By the way, in this case, especially the interval adjustment of the second roller is extremely delicate. That is, it is well known among those in the industry that not only the weight and type of bread dough differ, but also the state of the dough differs between the first half and the second half of a batch from a mixer.

For example, - When dividing a batch of 740 kg of dough,
The time required for this is about 20 minutes, and this is because the physical properties of the dough change due to fermentation of microorganisms in the dough between the start and end of dividing the rebatch.

Therefore, unless each machine on the bread making line is adjusted to accommodate the above changes, good and uniform bread will not be produced.
There was a problem in that the value of the final product was significantly reduced.

However, currently, this type of work is time-consuming as it relies on the operator's experience and intuition, and each machine on the line is not necessarily adjusted appropriately to the characteristics of the fabric. .

[Problems to be Solved by the Invention] The present invention aims to solve the above-mentioned problems in the conventional methods, and it is aimed at solving the above-mentioned problems in the conventional methods. , by objectively detecting differences in extensibility, adhesiveness, or fabric weight using a detection means, and understanding the physical properties of the fabric through processing by a CPU, etc.
The purpose is to adjust the machines and equipment on the production line to suit the condition of the dough, to keep the condition of the processed dough constant, and to stabilize the quality of the final product.

That is, in the present invention, a movable shaft roller that reverses rotation in opposition to a rotating fixed shaft roller is provided, and the distance between the rollers is (
The amount of displacement that the fabric gives to the roller when a certain amount of fabric passes is extracted by a displacement load converter attached to the movable shaft opening-roller side or the fixed shaft roller side, and the electric signal is processed by the CPU. The present invention aims to provide a system that displays and records the results as necessary, and controls each machine and device that constitutes the line based on the data.

With the above system, - Changes in the condition of the dough between the first half and the second half of the batch, differences in the quality of the dough from batch to batch, etc.
The condition of the fabric flowing through the production line can be accurately and objectively grasped, and based on the results, each machine on the preceding and following lines can be automatically adjusted to improve the fabric being processed and The purpose is to provide a device that makes the quality of final products uniform and stable.

[Means for Solving the Problems] The present invention provides the following as one means for achieving the above object, and as another means, as described in 2) below. It provides a system that is equipped with each component.

1) In the confectionery/bread making process, when the dough passes between a pair of rollers, a means for detecting the pressure change exerted by the dough on the roller as an electric signal, and a CPU that transmits the detection signal.
means for inputting and analyzing the results, means for controlling each machine constituting the confectionery/bread making line based on the processed results, and means for displaying and recording the results as necessary. Features a dough control system for confectionery and bread making processes.

2) The detection signal is input to the CPU, and the CPU compares the signal voltage change pattern with an optimal voltage change pattern stored in the CPU in advance, thereby determining whether each of the confectionery/bread making lines The machine, that is, has an analysis processing function that outputs a signal to set its driving conditions, control, etc. to optimal condition values, and by controlling each machine mentioned above based on the signal, it is possible to make the fabrics manufactured uniform and The dough control system in the confectionery/bread making process described in item 1) above, which comprises stabilizing the quality of the final product.

[Function] When the material to be measured is passed between a pair of rollers that rotate in opposite directions and rolled and stretched, the movable shaft roller is pushed by the reaction force of the dough rolling and undergoes a rocking displacement, which is transferred to the load cell. The pressure fluctuations are converted into electrical signals and detected through the cells, and the physical properties of the fabric can be captured as electrical signals.

FIG. 9 shows a signal pattern output from the load cell without operating the present control system. Assuming that the X-axis direction represents the time axis, and the Y-axis direction represents the pressure change blade axis caused by the deformation of the fabric on the roller, in the same figure, ■
- shows the signal pattern of the dough at the beginning of the batch, and ■ shows the signal pattern of the dough at the end of the same batch.As is clear in the figure, the physical properties of the dough change at the beginning and end of the batch, and the product is uniform. It is difficult to do things.

FIG. 10 shows the signal pattern detected and output as a result of operating this control system.

In the figure, ■ indicates the dough at the beginning of the batch, and ■ indicates the electrical signal pattern from the dough at the end of the batch.As can be seen from the figure, the physical properties of the dough are made uniform by this control system.

Furthermore, as shown in A in Figure 11, the length of the dough that has been curled and rolled out by a molder is not the same at the beginning and end of the batch, which can cause problems in post-processes such as panning. This was a cause of uneven product quality, but with this control system, as shown in Figure 11B, the uniformity of the rolled dough when moving from the molder to the next process is improved, and the line The above problems were reduced, quality uniformity was improved, and effective production management was facilitated.

Figure 12 shows the rolling and stretching of Danish dough in a dough sheeter using this control system. No pattern change is observed, whereas when the fabric has no extensibility, the level of the graph pattern is high, as shown in ■, and the level decreases after showing an abnormally high peak just before the fabric breaks. .

− By installing this control system on the dough seater,
It is now possible to understand the physical properties of Danish dough, which was previously difficult to determine, and automatically changes the spacing between rolling rollers, the amount of flour falling through the flour sieve, the speed of the dough conveying belt, etc. This has made it possible to make the fabrics and products more uniform and improve their quality.

By applying a dough control system to each machine constituting the confectionery/bread making line as described above, the quality of manufactured products is stabilized.

[Example] An example of the present invention will be described with reference to the drawings, but since various modifications and applications may be made to the structure and system other than the main configuration, the present invention will be explained based only on the illustrated example. The summary should not be interpreted in a limited manner.

FIG. 1 is a schematic explanatory diagram of a device that measures and detects the physical properties of dough and analyzes and processes them, which is the basic mechanism of an embodiment of the control system of the present invention in the confectionery and bread making processes.

8 In the figure, ↓ is a fixed axis roller, 2 is a movable axis roller, 3 is a dough mass to be measured, 5 is a displacement-load converter (hereinafter referred to as a load cell) that corresponds to changes in the movable axis roller, and 11 is an output from the load cell. A/D converter for the signal, 12 is C
PU (for example, PC-9801 personal computer system: product name), 13 is a display device, and 14 is a printer. However, the display device 13 and printer 14 are not essential for configuring the system of the present invention.

Figures 2 and 3 show details of the fabric property detection mechanism.
FIG. 2 is a drawing showing a specific structure. 1°, j, $) 3 is a sectional view taken along the line ■-■ in the plan view shown in FIG. 3, and FIG. 3 is a plan view taken from the direction of the arrow ■ in FIG.

In the figure, a pair of rollers 1.2 are supported in parallel and are supported on a swing frame 7 that is pivoted to a frame 10 so as to be able to swing toward and away from the fixed shaft roller 1. The movable shaft rollers 2 are provided so as to face each other and rotate in opposite directions.

Note that 4 is a slide plate that transmits the displacement of the movable shaft roller 2 to the load cell 5, 6 is a knob for adjusting the distance between the pair of rollers 1.2, and a screw connected to the knob is screwed into the frame 10. By screwing the screw provided on the roller spacing adjustment knob into the female screw of the 10 frames and rotating it,
The distance between the pair of rollers 1.2 can be adjusted by moving the movable shaft roller back and forth via a load cell.

In the case of the above-mentioned basic mechanism, the swing frame 7 on which the moving shaft roller 2 is pivoted converts the swing displacement into a linear direction about the fulcrum 1ll18, and transmits it to the load cell 5.
When the movable shaft roller 2 is configured to move horizontally, the slide plate 4 is not necessarily required.

Further, in this embodiment, the pair of rollers are installed horizontally, but they can also be installed at a certain inclination angle or vertically.

When a certain amount of dough 3, which is the object to be measured, is passed between the pair of rollers and rolled and stretched, the movable shaft roller 2 is pushed by the dough and is supported by the swing frame 7, while the fulcrum shaft is 8
The arc movement is converted into a linear displacement via the slide plate 4 slidably supported by the slide rail of the frame, and this is transmitted to the load cell 5.

The cell 5 converts and detects the load accompanying the progress of rolling the dough into an electrical signal, and specifies the physical properties of the dough.

Here, the fabric 3 passes between rollers 1 and 2 as shown in Figure 6.

That is, in the figure, the A curve shows the signal pattern of the fabric created based on the proper process, the 8th curve shows the signal pattern of the fabric with a short bench time, and the C curve shows the signal pattern of the fabric with an excessively long bench time. By analyzing this signal pattern,
The following matters were discovered.

1 (-) Fabrics with too short bench time have higher maximum voltage, shorter voltage input time, and shorter maximum voltage instruction time than the entire voltage input time (B in Figure 6). (see curve).

(d) Fabrics whose bench time was longer than appropriate had the opposite result (see curve C in Figure 6).

A control system in which the above-described basic mechanism for detecting and analyzing changes in dough physical properties is applied to the bread making (shaping) process is shown in FIG. 4.

More specifically, in the same figure, the fabric 3 discharged from the proofer 16 is input to the CPU 12 via the roller of the molder 21 and exchanger 11, where it is analyzed and processed.

A specific example of this analysis process will be explained with reference to the flowchart shown in FIG. When the fabric 3 passes between the rollers 1.2, a voltage change occurs in the load cell 5. Then, the average value of several passage fabric data, for example, the maximum voltage, voltage input time, and maximum voltage instruction 12-time for 5 times, is determined.

Next, as shown in step (a), the above value is compared with the programmed predetermined voltage to determine whether the maximum voltage is higher or lower, and the moulder roller spacing, proofer temperature,
Control the spacing between the expansion pressure plates.

- By way of example, if the voltage is determined to be higher than the predetermined voltage, the distance between the rollers 1.2 of the molder can be changed to
5 and a screw of an adjustment knob 6 connected thereto and operated to expand it by a certain amount.

In addition, the temperature inside the proofer can be adjusted using near conditioner 2.
0 to control a certain amount within the range of 20 to 32 degrees.

Furthermore, the pressure plate 17 of the molder is lowered by a certain amount by the motor 18 (see control 1 in the flowchart).
.

If the voltage is determined to be lower than a predetermined programmed voltage, the distance between the rollers 1.2 of the molder is reduced by a certain amount by the actuation of the motor 15 and the screw of the adjustment knob 6 connected thereto, The molder expansion pressure plate I7 is lowered (see control 2 in the flowchart).

Next, in step (b), the elapsed time (voltage input time) per peak time is compared with the pre-programmed voltage input time, and if it is a short time, the control in the flowchart of FIG. If the time is long, control 2 is performed as described above.

Next, in step (c), it is determined whether the maximum voltage instruction time matches a predetermined programmed time for the entire voltage input time.

... □ If the maximum voltage instruction time is earlier than the specified time,
As above, the control in the flowchart shown in FIG. 7 is carried out. If it is too late, control 2 is performed as described above.

By controlling each machine constituting the bread-making and shaping line as described above, the processing of dough is adjusted and the quality of manufactured products is stabilized.

Next, the control system used for the dough sheeting process is
As shown in FIG.

In the fabric sheeting process shown in FIG. 5, rollers 1.2 are installed above and below, but the basic control system remains unchanged. In the figure, the dough is on conveyors 24 and 25.
When moving back and forth on the top, the fabric is rolled and stretched in stages by the rollers 1.2, and at that time, the fabric gives a displacement to the movable roller 2, and this displacement is converted into an electric signal by the load cell 5, which is sent to the A/D. The data is analyzed by the CPU via the converter 11.

The details of this analysis process will be explained based on the flowchart in FIG. 8. First, the fabric 3
When the voltage passes through the load cell 5, a voltage change occurs in the load cell 5.

Then, as shown in step (a), it is determined whether the maximum voltage is higher or lower than a programmed predetermined voltage, and the roller interval, falling amount of the powder sieve, and belt speed are controlled. - For example, if it is determined that the voltage is low, a signal is sent to the motor 15 to increase the distance between the rollers 1.2 of the dough seater by a certain amount;
Take care not to damage the fabric. In addition, the amount of flour applied by the motor 23 which operates the flour sifter 22 that sprinkles flour on the dough 3 on the dough sheeter is reduced by a certain amount, and the amount is set to an optimum amount that does not damage the dough and prevent too much flour from adhering to it.

In addition, the conveyance speed of the conveyors 24 and 25 that convey the doseater is increased by a certain amount so that the dough is rolled and stretched under optimal conditions (see control 1 in the flowchart).

If it is determined that the voltage is higher than the predetermined voltage, the signal is sent to the motor 15, which narrows the distance between the rollers 1.2 of the dough sheeter by a certain amount, and the amount of powder falling by the raw motor 23 is kept constant. Use a thick comb to avoid damaging the fabric. Further, a conveyor 24.2 for conveying the dough sheeter
5 is slowed down by a certain amount to minimize damage to the fabric (see control 2 in the flowchart). Next, in step (b), it is determined whether the maximum voltage instruction time matches the programmed predetermined time with respect to the entire voltage input time.

If it is earlier than the predetermined time, the control in the flowchart as described above is carried out.

If it is too late, control 2 is performed as described above.

In this way, by applying a control system to the dough sheeting process, the quality of the fabrics and products produced is uniform and stabilized.

[Effects of the Invention] As described above, according to the control system of the present invention,
A load cell installed on the movable shaft side of a pair of mutually rotating rollers or on the fixed shaft side detects changes in the deformation pressure of the fabric passing between the rollers over time, and outputs the signal. By inputting data into the CPU and processing it, we can objectively understand the physical properties of each dough, and by applying the results to control the various machines and devices that form the confectionery and bread production lines, we can automatically determine the final product. It achieves special functions and effects that cannot be expected from conventionally known processing methods or devices, such as uniformity and improvement of quality.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the basic system of an embodiment of the apparatus of the present invention in the bread making process, FIGS. 2 and 3 are diagrams showing the detailed structure of the bread dough physical property detection means, and FIG. Figure 3 is a side sectional view taken along the line ■-■ of Figure 2.
FIG. 4 is a diagram showing a control system in which the apparatus of the present invention is applied to the bread making (shaping) process, and FIG. 5 is a diagram of the control system of the present invention similarly used in the dough sheeting process. , FIG. 6 shows each chart showing the difference in physical properties of bread dough. FIGS. 9 to 12 are diagrams showing specific examples of various curves showing differences in physical properties of bread dough. 2...Pair of rollers...Dough, 4...Thrust plate,...Load cell, 6...Adjustment knob,...Swinging frame, 8...Axis,...Frame, ]I... A/I) converter, 12
...CPU (Central Processing Unit), 13...Display device, 14...Printer 15.18.19.23
．． 26.27...Motor 16...Purfer, 1
7... Expanding pressure plate, 20... Near conditioner 21... Mulder, 22... Powder sieve, 24.2
5...Conveyor conveyor

Claims (1)

[Scope of Claims] 1) In the confectionery/bread making process, when the dough passes between a pair of rollers, a means for detecting the change in pressure exerted by the dough on the rollers as an electrical signal;
means for inputting and analyzing the results, means for controlling each machine constituting the confectionery/bread making line based on the processed results, and means for displaying and recording the results as necessary. Features a dough control system for confectionery and bread making processes. 2) The detection signal is input to the CPU, and the CPU compares the signal voltage change pattern with an optimal voltage change pattern stored in the CPU in advance, thereby determining whether each of the confectionery/bread making lines The machine, that is, has an analysis processing function that outputs a signal to set its driving conditions, control, etc. to optimal condition values, and by controlling each machine mentioned above based on the signal, it is possible to make the fabrics manufactured uniform and The dough control system in a confectionery/bread making process according to claim 1, further comprising stabilizing the dough to stabilize the quality of the final product.