RU1799293C - Cutter and method for determination of cutting finish point - Google Patents

Abstract

Using; The invention relates to the meat industry. SUMMARY OF THE INVENTION: The cutter cycle is conventionally divided into equal time intervals, and the measurement and analysis of power consumption are carried out separately in each of these segments. The magnitude of the difference between the maximum and minimum values of power consumption in each of the time intervals determines the course of the cutting process and the achievement of the optimal cutting time. The cutter control system further comprises a power consumption measuring device, an anslo-digital microprocessor converter. 2 e.p.

Description

The invention relates to the meat industry, and in particular to equipment for fine grinding of meat.

The purpose of the invention is to increase the accuracy of determining the end time of cutters.

Figure 1 shows the characteristic dependence of the power consumed by the cutter on the duration of the cutter; figure 2 schematically shows a couger; Fig. 3 shows a cutter control circuit.

The characteristic dependence of the change in -consumed power on the cutter duration is curve 1.

Kugger 2 contains a bowl 3, a cutting mechanism 4, a device for loading raw materials and unloading minced meat, a device for measuring the temperature of the minced meat and subsidizing added water (not shown in the drawings), a device 5 for counting the number of revolutions of the bowl, a control system 6, including a device 7 for measuring the consumed power, analog-to-digital converter 8, microprocessor 9.

The essence of the method for determining the moment when the cutter is completed is to control the change in the dependence of the power consumption on the cutter time. In the initial period of chopping, curve 1 shows the characteristic fluctuations in power consumption caused by the intensive grinding of knives of the cutting mechanism by 4 knives of 4 large particles of meat and their uneven distribution in bowl 3 of cutter 2. Then, the oscillations of curve 1 are equalized, and then the fluctuations in power consumption are again observed with relatively large amplitude caused by the addition of the remaining components for making minced meat of a certain grade to the bowl 3. The cutter cycle is conventionally divided into equal time intervals At. An analysis of curve 1 in each of the time intervals is carried out according to A.N, the difference between the maximum recorded and minimum recorded values of power consumption in a given time interval At. To determine when the cutter is finished, the difference A N is compared with a predetermined value A p. The predetermined value An is determined by the statistical operating time for each sort of sausage or type of minced meat and type of cutter. If the difference AN is greater than the power value An, then the cutting process continues and analysis of the consumed power in the subsequent time interval A t begins. If the difference A N in one of the following time intervals At does not exceed

given value of Ah, this indicates the end of the chopping and the process is terminated. .

Cutter works as follows,

After loading the raw materials into the bowl 3, the grinding process begins. The readings of device 7 (see curve 1) in the initial period are unstable, since the engine operates with short-term overloads,

After loading all the components added during the chopping process, a signal is received from the control systems 6 to the device 5 for counting the number of bowl revolutions and the device 5 starts to send signals to

microprocessor 9 through equal periods of time. After the microprocessor 9 receives the first signal from the device 5, it begins to analyze the power consumed by the cutter 2, receiving the signals 7 about the amount of power consumed by the analog-to-digital converter 8. Upon receipt, by microprocessor 9 of the second signal from device 5, analysis of power consumption

in the first time interval stops and,

if necessary, the analysis of the consumed power in the second segment, etc. begins.

At each time interval, the power consumed by the cutter is analyzed as follows. The values of the maximum power consumption, the minimum power consumption are recorded and stored, their difference AN is determined. If this difference AN is greater than the specified value Ah, then microprocessor 9 begins to analyze the consumed power in the next time interval A t. If the difference And N does not exceed a given value of A h, then from

0 microprocessor 9 to the control system b receives a signal about the end of the cutter. Having received a signal from microprocessor 9, the control system terminates the cutting process.

B:

Claims (2)

SUMMARY OF THE INVENTION 1. Method for determining the moment of cutter completion, including measuring and analyzing the power consumed by the cutter 0 5 during the cutter cycle, characterized in that, in order to increase accuracy, the cutter cycle is divided into equal time intervals during which the difference between the maximum and minimum values of power consumption is set, the set difference value is compared with the set value, and moment cutter completion is determined by the result of the comparison. 2. Cutter for determining the moment of completion of the cutter, containing a bowl, a cutting mechanism, a device for loading raw materials and unloading forcemeat, devices for measuring the temperature of the minced meat and dosing water, a device for counting the number of revolutions of the bowl, control system, heater and wherein, in order to increase accuracy, it further comprises a device for measuring power consumption and a system for processing measurement results, including a microprocessor, an analog-to-digital converter, the output of the control system being connected to the input of the bowl speed meter, the output of which is connected to the first input of the microprocessor, and the output of the device for measuring power consumption is connected to analog to digital converter input. FIG. 2 Fig 5