KR950004564B1 - Control circuit of meat cutter machine - Google Patents

Abstract

The circuit provides functions to convert the single phase current into the triple phases current, to stop suddenly, to control the operation speed, and to control the power supply according to change of load. In the circuit, triple phases induction motors are used as a motor(M1) for operation of rotating knife for meat cutting and an operation motor(M2) for meat transfer. For operation, inverters(IV) are set up between a main power switch and the motors(M1,M2).

Description

Meat cutting machine control circuit

1 is a sequence diagram of a meat seasoning machine according to the present invention.

2 is a view illustrating an operation panel for a control circuit of a meat cutting machine according to the present invention.

* Explanation of symbols for main parts of the drawings

M1: Rotary Knife Drive Motor M2: Loading Box Drive Motor

IV: Inverter CAMSW: Cam Switch

MR: Magnet Relay R1, R2, R3, R4: Relay

T: Timer VR: Volume

SR1, SR2: Sensor SM: Stacking Speed Indicator

C: Meat Slice Counter

The present invention relates to a control circuit of a meat grinder, and more particularly to a control circuit of a motorized meat grinder for controlling the operation of the drive motor of the rotary knife for cutting meat and the drive motor of the loading box for transferring the meat toward the rotary knife.

In general, the electric meat grinder is composed of a rotary knife drive motor for meat cutting and a meat transportation box drive motor, and the conventional meat grinder is merely a motor driven by the rotary knife and the loading box, and has the following problems.

In other words, the three-phase induction motor, which is advantageous in terms of capacity and efficiency, is used for the meat cutting drive motor and the loading box driving motor for meat transportation. Since the intake current of the power receiver is a single phase current, a separate converter must be installed. There is no stop function, so the re-cutting motion is not directly linked after one cutting operation, and there is no speed control function of the rotary knife drive motor and the loading box drive motor for meat transportation. There was a problem that the meat could not be properly cut to the softness and the power supply could not be controlled due to the load change during operation, resulting in a lot of power loss.

The present invention solves the conventional problems as described above, the present invention includes an inverter for converting a single-phase current, which is the incoming current of the power consumer to three-phase current, and has a sudden braking function to any Even if you are driving in the position, if you stop, you can always stop at a certain position, the user can arbitrarily adjust the operation speed, and control the meat supply, characterized in that the power supply can be controlled according to the load change during operation To provide a circuit.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 1 shows a sequence diagram of a meat grinder according to the present invention, the present invention is to adopt a rotary knife drive motor (M1) for meat cutting and the loading box drive motor (M2) for meat transfer as a three-phase induction motor Main power supply switch (SW) to operate the rotary knife drive motor (M1) and the meat transfer box drive motor (M2) for meat cutting, which is the three-phase induction motor, while receiving the single-phase 220V, which is a draw current of the electric power consumer. The inverter IV is installed between the rotary drive motor M1 and the loading box drive motor M2.

In the sequence diagram of FIG. 1, CAMSW is a power supply switch of a rotary knife driving motor M1, which controls the entire control circuit of the present invention, and MR is a magnet relay for turning on and off the power supply to the loading box driving motor M2. R1 is a relay that controls the inverter IV in the on state, R2 is a relay that selectively performs reverse and reverse rotation of the inverter IV, and T is a start and stop time of the rotary knife driving motor M1. Is a timer for arbitrarily setting, R3 is a relay for controlling the inverter IV to be in an off state, R4 is an auxiliary relay of the power supply switch CAMSW of the rotary knife driving motor M1, and VR is a reciprocation of the loading box. It is a speed control volume, SR1, SR2 is a sensor that senses the position of the loading box and limits the start of the loading box drive motor (M2), SM is the feeding speed indicator of the loading box, and C is a meat cutting counter. With setter (C1) Flow indicator is made of a (C2) for displaying the amount of fragments.

2 illustrates an operation panel of the control circuit as described above.

In FIG. 2, L is a lamp indicating the power supply state, A is a rotating knife starting process at a stop position, B is a loading tray starting process at a rotating knife starting state, C is a rotating knife starting process at a loading tray starting, and D is rotating. The process of the stop position in the knife operation, E indicates the reverse rotation process of the loading box drive motor (M2) and the automatic return to the original starting state to reverse the transfer of the load box from the stop position.

Referring to the effects of the present invention configured as described above are as follows.

First, turn on the main power supply switch (SW) and select the function setting switch CAMSW as the rotary knife start position at the stop position (in this case, sensor SR1 is on and contact R4-2 is off). When the rotary knife driving motor (M1) is turned on to operate the rotary knife (section A), and then select CAMSW as the loading position (section B), contact CAMSW-4 turns on and relay contact R4-3 turns on. When the magnet relay MR is turned on and the loading box drive motor (M2) is started, the loading box reciprocates. At this time, the meat loaded in the loading box is cut into a predetermined constant thickness by the rotary knife which has started to be started. If the CAMSW is selected as the rotary knife starting position during the cutting (section C), the contact CAMSW-4 is turned off, the relay R4 is also turned off, and gradually R4-1 is turned off to be continued by the relay R1. Since the relay R3 is turned on, the contact R3-1 is turned on and the inverter IV stops while the relay R1 and the lamp L are turned off. At this time, the timer T is simultaneously turned on, and after the holding time of the timer T (approximately 0.8 seconds), the contact T-4 is turned off and the magnet relay MR is also turned off to stop the loading box drive motor M2. However, the rotary knife drive motor (M1) is restarted after the holding time of the timer (T) is rotated.

Subsequently, when CAMSW is selected as the stop position to stop even the rotary knife drive motor M1 (section D), the contact CAMSW-1 is turned off to stop the rotary knife drive motor M1. At this time, relay R1 is turned off and inverter IV is also stopped.

And to drive the CAMSW in the reverse position at any of the stop position, rotary knife start, or loading box start state, that is, if the meat is too frozen and overloaded by hard or boned parts, the CAMSW "E" When it is selected and released in the reverse rotation direction as in the section, contact CAMSW-3 is operated and relay R2 is turned on so that contact R2-2 connected to inverter IV is turned on to reverse the rotation direction of the loading box drive motor M2. At this time, after the sensor RS1 and the sensor RS2 are turned on, the relay R3 is turned on and the contact R3-1 is turned off, so the relay R1 is also turned off so that the control point R1-2 in the inverter IV is turned off and the inverter IV is stopped so that all operations are performed. Is stopped.

In the present invention as described above, when the loading box drive motor M2 is in operation, the reciprocating feed rate indicator SM of the loading box receives the speed signal generation voltage according to the inverter IV and displays it in a digital manner. At this time, the round trip speed of the loading box can be set to the desired round trip speed through the volume (VR).

In addition, the meat slice counter (C) is displayed through the indicator (C2) for the meat slice display because the relay R3 is turned on and the contact R3-2 is turned on when the sensor SR1 and the sensor SR2 are turned on at the same time. At this time, when the amount of meat cut reaches the set value set in the setter (C1), the contact point c-1 is turned off, the relay R1 is turned off and the contact point R1-2 is turned off.

Since the present invention employs an inverter as described above, it is possible to operate a rotary knife driving motor for meat cutting, a three-phase induction motor, and a meat transfer box driving motor while converting a single-phase current, which is a power receiving current, to a three-phase current. By increasing the use efficiency of the product and having a rapid braking function, it can always be stopped at a certain position even when driving from any position, and the speed control of the driving motors can be arbitrarily adjusted by the user according to the intended use, and the load during operation The power supply can be controlled according to the fluctuation so that unnecessary power consumption can be reduced, and the number of reciprocating movements of the meat container can be counted so that the user can set the speed appropriately, and the amount of meat cut can also be counted and controlled. It has the advantage of cutting meat accurately and economically. All.

Claims (1)

Connect the inverter (IV) between the rotary knife drive motor (M1) for meat cutting and the loading box drive motor (M2) for meat transfer, and the main power supply switch (SW) on the single-phase input terminal, and to the rotary knife drive motor (M1). The relay switch R1, R2, R3, R4 and the rotary knife drive motor which connect the cam switch CAMSW, connect the magnet relay MR to the loading box drive motor M2, and control the inverter IV. Timer (T) controlling the start of (M1), volume (VR) for reciprocating speed control of the loading box, sensor (SR1) (SR2) for detecting the loading position, loading speed indicator (SM) and meat slice counter of the loading box ( And c) controlling these components with the cam switch (CAMS).