SU599785A1 - Fish-beheading arrangement - Google Patents

Description

flat windings included counter. The output of each sensor 18 and 19 of fish thickness is connected to the inputs of cells 23 and 24 to us, which store signals that are proportional to the maximum thickness of fish in the region of the head and tail. The outputs of the memory cells 23 and 24 are connected via a comparator 25 to a switching relay, for example, a two-position polarized relay, having three contact groups 26, 27 and 28.

Through the first contact group 26 of the switching relay, the outputs of the cells 23 and 24 are connected to the system 29 of the automatic setting of the working bodies 8 and 9 to its information input 30, which consists of a computing device 31, which determines the length of the fish’s head, the converter 32 analog value in the time interval, the switch 33. The input I (back) of the switch 33 through the conjunctor 34 is connected to the output of the converter 32 and to the input of the pulse generator 35, and the input B (forward) through the conjunctor 36 to the generator 35 pulses to the second output of the delay element 37 and through the input 38, which is the system control input, to the second contact group 27 of the switching relay. The input of the delay element 37 is connected to the output of the null organ 39, which E is in turn connected to the system input 30, the first output of the delay element 37 is connected to the trigger output of the converter 32, and its third output to the information reset keys 40 from the storage cells 23 and 24 .

Through the third group 28 of non-switch relay contacts, the power source 41 is connected to a reversible electric actuator 27 of the device for unshifted fish in the tray and to the stepper motors 14 and 15 of the operating elements 8 and 9, which are also connected via a power amplifier 42 to the switch 33.

Fish thickness sensors 18 and 19 have the same design and consist of a measuring body 20 or 21, made in the form of a free-hanging scraper, the axis of rotation of which is associated with the axis of rotation, for example, a sine-cosine rotating transformer 43, the stator of which is connected to the network and cosine rotor winding through rectifier 44 to one of the inputs of the operational amplifier 45. The other input of the operational amplifier 45 is connected to the source 46 of the reference waveform.

Each of the memory cells 23 and 24 contains a storage capacity 47 connected to the output of the sensor 18 or 19 through the diode 48, and a key 40 for resetting information from the container 47.

The operation of the device is as follows.

The fish, manually or automatically, with the help of the southwest feeder guide 3, is tracked into the trays up to the ear with a snout or tail into a movable flat bar set at that distance from the edge of the conveyor, thus ensuring the orientation of the disc knife 6 and the tip of the gill cover of the smallest fish. , stocked head under the bar 5. As the fish moves on the conveyor, sensors 18 and 19 measure the maximum thickness of the fish in the region of the head and tail.

Each of the sensors 18 and 19 generates a signal, the proportional current thickness of the fish-B, which in turn is determined by the expression

B.R (-cosa), where R is the radius of the measuring flap;

it is the deflection angle of the measuring

curtains.

Using memory cells 23 and 24, the maximum value of the sigals taken from sensors 18 and 19 is extracted.

As a result of measuring the thickness of fish with two sensors 18 and 19, the output signal t / g from cell 24 is connected to sensor 19, the measuring body 21 of which is located in the area of fish head,

exceeds the value of the output signal f / i from the memory cell 23 connected to the sensor 18, the measuring element 20 of which is located in the region of the fish tail.

Comparator 25 connected to the outputs

cells 23 and 24 of memory, has such a characteristic that if zero signals at its inputs are 0 or signals, when the output voltage of the comparator 25 has a positive zero. ESLR

signals, the output signal of the comiaarator 25 changes the polarity to the opposite (negative). Thus, the switching relay connected to the output of the multiplier 25, and the magnitudes of the signals, when

 does not change the positions of its contact groups 26, 27 and 28. As a result, the information input 30 of the automatic and adjustment system of the working bodies remains connected to the output of memory cell 24, the limit switch 17 remains connected to the system control input 38, and the power supply 41 to the actuator 15 and the reversible motor, ensuring the roller is rotated in the direction that the fish in the tray is moved by the snout to the movable stop when it comes to the roller.

When applying the signal U to the input of the system using the computing device 31, the maximum thickness is recalculated

bmax fish in length HEAD 1 according to the equation:

/ l aBMaKo.-f b,

where a is the regression coefficient;

c - free regression member.

With the help of the converter 32, put into operation with the help of the null organ 39, through the delay element 37 (its second output) the analog signal from the output of the computational

block 31 is not reconstructed during the time-pulse form. The conversion of the time interval into a proportional number of pulses is performed by KOHbioiiKTOpoM 34 and generator 35.

The frequency of the pulse generator 35 is set in advance, depending on the type of fish being treated, n is determined by the regression coefficient a. Bundles of emulsions from the output of the conjunctor 34 are fed to the input I (back) of the switch 33 and through the power amplifier 42 to the stepper motor 15, which moves the working body 9 (movable stop for the fish head bar), closing the limit switch 17. When the fish approaches the roller ReMeutae fish until it stops snoring in the fish. The fish then goes to disk knife 6 and is beheaded with a straight cut.

After the end of the cut, the fish from the output of the delay element to one of the inputs of conjunctor 36 receives a signal, which, together with signals from the generator 35, and a signal from the limit switch 17, causes the appearance of pulses at conjunct 36, and therefore, at the input B of the switch 33 .

The stepper motor 15 returns the working element 9 to its initial state, opening the limit switch 17 and stopping the supply of pulses to the input B of the switch. The next signal from delay element 37 causes information to be reset by means of keys 40 from memory cells 23 and 24. The device returns to its original state.

If the subsequent fish arriving for processing has the opposite orientation, i.e., under the working body 20 is the fish head, and under the working body 19 is its tail, then the output signal t / i will exceed the signal U-i. Under the influence of a negative signal from the comparator 25, the polarized switching relay resets the state of the contact groups 26, 27 and 28 to the opposite. As a result, the limit switch 16 is connected to the information input 30 of the system, and the power source 41 is connected to the electric drive 14 and to the electric motor of the device 22 for moving fish, which rotates the roller in the opposite direction (compared to the described

above the case), ensuring the movement of the fish all the way to the working body 8, when the fish approaches the roller. Further operation of the device is completely similar, but the disk knife 7 and the limit switch 16 are involved in the work.

When information is cleared from memory cells 23 and 24, the contact groups 26, 27 and 28 of the polarized switching relay are reset.

The technical and economic advantage of the proposed solution is determined by the following circumstances: the known device for adjusting for economical cutting of the fish head requires either manual insertion of the fish in trays or special devices orienting the fish, for example, with the head in one direction.

The proposed device, due to the independent way of orienting fish, is more universal, does not require special orientators, which, if used in an automatic fish cutting line, reduces the cost of line size II, thus providing a significant economic effect.

Claims (1)

1. Patent of the USSR No. 210777, cl. A 22C 25/14, published. 1965.