JPS6253319B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a meat slicer that sequentially cuts a meat loaf from one end to obtain slices, and the present invention relates to a meat slicer that obtains slices by sequentially cutting a meat loaf from one end thereof, and the present invention relates to a meat slicer that obtains slices by sequentially cutting a meat loaf from one end thereof. By automatically changing the thickness according to the weight, slices having a substantially constant weight can be continuously obtained.

Conventional slicers keep the feed rate of the material constant to keep the weight of the sliced pieces almost constant, but if the height and width of the meat loaf gradually decrease or increase, it is necessary to take timely measurements. It was necessary to adjust the amount of material fed by the slicer manually, making it difficult to obtain slices of a constant weight at all times. In addition, Patent Application Publication No. 151175 of 1978, which was designed to eliminate such manual work,
There is also a slicer No. 151176, but they are configured to automatically measure the slice pieces by weight and then automatically follow the feed rate of the slicer.
If the structure becomes complicated and the amount of material increases or decreases significantly, there is also the drawback that the weight error of the next sliced piece becomes large.

The present invention is provided with an area detection mechanism that measures the cross-sectional area of a meat loaf cut by a slicer or the area of a cut surface of a sliced piece, and the measurement value detected by this area detection mechanism and the area that has been input into an arithmetic circuit in advance. By providing a control circuit that calculates the material feed rate of the slicer so that the weight of the sliced piece becomes a desired set weight based on the predetermined weight of the sliced piece and the specific gravity of the meat lump that differs depending on the material, automatic processing can be achieved. To provide a meat slicer that can obtain slices with a uniform weight.

The present invention will be described below with reference to embodiments shown in the drawings.

In the figure, F is the machine base of the slicer, A is a round blade that is installed on one side of the machine base F and rotates vertically, and B is a circular blade that moves on the machine base F towards the above-mentioned round blade A by the drive of a crank (described later). The meat box C, which moves back and forth, consists of a lower conveyor Ca installed at the bottom of the meat box B, and an upper part attached to the tip of an arm 1 that swings along one outside of the meat box B and fits into the meat box. This material feeding conveyor is equipped with a conveyor Cb, and intermittently feeds the meat mass toward the front end surface of the meat box B while sandwiching the meat mass between the upper and lower conveyors. Reference numeral 2 denotes a backing plate erected on one side of the machine base F along the rotating plane of the round blade A and parallel to the front end surface of the meat box B. This backing plate 2 supports two shafts 3, 4 so as to be slidable back and forth. 5 is a solenoid that is attached to the shaft 3 and moves the backing plate 2 back and forth in a timely manner every time the meat box B reciprocates; The area detection mechanism 7 is composed of a large number of light-receiving elements 6a uniformly arranged so as to represent a light emitting/receiving surface (a surface facing the arm 1). The lower conveyor
Ca and the upper conveyor Cb are driven by a conventionally known drive mechanism G.
A material feeding drive shaft 8 is driven at the same time via A pulse motor for feeding the material, which is equipped with a gear M' that meshes with the gear 8b at the end and is also fixed to the outer surface of the meat box B, is driven by a motor (not shown) provided in the machine stand F. S1 is a crank that reciprocates the meat box B; _S1 is a switch that operates the solenoid 5 when the meat box B reaches a predetermined position in contact with a detector a fixed to the shaft 10' of the crank 10; _S2 is a switch that operates the solenoid 5; After the switch _S1 is activated, this switch also comes into contact with the detector a and activates the aforementioned light receiving element 6a.

FIG. 4 shows the structure of a material feed control circuit attached to this meat slicer having the above structure, and this circuit will be explained below together with the operation of the slicer.

The meat box B, which holds the loaded meat blocks between the upper and lower material feed conveyors C, reciprocates toward the round blade A as the crank 10 rotates. When the meat box B, which has finished cutting once, retreats from the front of the round blade A, the switch S1 in contact with the detector a is activated, and the solenoid ₅ is activated.
conducts, and the backing plate 3 moves forward to a position where it approaches the front end surface of the meat box B. When the rotation of the crank 10 further advances and reaches a position where the meat box B is completely removed from the front of the round blade A, the switch _S2 is activated to energize the light receiving element 6a. The light receiving element 6a emits light toward the front end surface of the meat box B that directly faces the backing plate 3, and receives only the reflected light reflected from the cut surface of the meat loaf, so that the cross-sectional area of the meat loaf is is measured, and the determined value is input to the arithmetic circuit via the area calculation circuit of the control circuit E shown in FIG. The control circuit E includes a weight setting circuit for setting a desired weight and a specific gravity setting circuit for setting a specific gravity value determined experimentally for each type and quality of meat to be sliced. The set value inputted in advance to the arithmetic circuit via the arithmetic circuit and the area measurement value are calculated by a multiplier and a divider in the arithmetic circuit as follows: weight/area x specific gravity = thickness, and the value is determined by the above calculation. The feed amount corresponding to the thickness is output as an electric signal to the pulse motor drive unit. The pulse motor drive unit converts this electric signal into a number of pulse signals and drives the pulse motor M for feeding the material. The rotation of the motor M is transmitted to the drive mechanism G via the deceleration shaft 8 and the material feed drive shaft 7,
The conveyor C is driven to feed the meat mass according to its cross-sectional area. Note that the backing plate 2 is configured to move backward following the operation of the solenoid 5, which is opened in response to the area measurement completion signal from the light receiving element 6a, so as not to interfere with the forward movement of the material by the drive of the conveyor C.

The above embodiment is a case in which the present invention is installed in a meat slicer configured to forcibly send out the meat lumps in the meat box B by upper and lower conveyors C whose conveyance direction is horizontal. It is also possible to equip the present invention with a conventionally known inclined or vertical slicer in which the box is tilted so that the material falls under its own weight. That is, the fourth
As shown by the imaginary line in the figure, in the control circuit E, D-A
An operating circuit E' consisting of a converter, a potentiometer, a comparator, and a motor is connected, and the motor is attached to the support shaft of the backing plate of the slicer via an appropriate transmission mechanism consisting of gears, etc. By providing a yometer at a position where it can detect the movement position of the patch plate, and equipping the corresponding plate with a light receiving element as in the above embodiment,
The area of the cut end surface of the meat loaf that comes off the round blade and is crimped onto the backing plate by its own weight is measured, and the feed amount is calculated via the control circuit E so that the weight of one slice becomes the desired weight. By rotating the motor in forward and reverse directions until the moving position of the caul plate detected by the potentiometer reaches a balance with the above-mentioned feed amount, the feed amount of the material that drops under its own weight each time cutting is completed can be automatically controlled.

Further, the present invention can be configured to measure the cutting area of the slice piece that has been cut by the round blade A and automatically control the next material feed amount. That is, receiving a slicer equipped with a slice receiving device, for example, the slicer described in Patent Publication No. 26635 of 1975, Patent Publication No. 17180 of 1975, Patent Publication No. 2057 of 1975, and Patent Publication No. 2058 of 1975, etc. The slice piece carried out by the device is once received by a receiving plate equipped with a light receiving element, and the cutting area of the slice piece is measured, thereby making it possible to automatically control the feed rate in the same way as in the above embodiment. A meat slicer can be configured.

As described above, the present invention automatically controls the feed amount of the material based on the measurement value detected by the area detection mechanism, so it is more effective than the conventional meat slicer that weighs the slices. It is possible to provide a slicer that has a simple structure, is easy to manufacture, and has a small error in obtaining slices of a constant weight.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a left side view of a slicer to which the present invention is applied, FIG. 2 is a partially cutaway rear view of the same slicer, and FIG. 3 is a schematic plan view of the same slicer. FIG. 4 is a schematic diagram of the configuration of the feed amount control circuit in the embodiment. F... Machine stand, A... Round blade, B... Meat box, C...
Conveyor, Ca... lower conveyor, Cb... upper conveyor, 1... arm, 2... patch plate, 34...
Axis, 5... Solenoid, 6... Area detection mechanism, 6
a... Light receiving element, G... Drive mechanism, 7... Material feeding drive shaft, 7a, 7b... Gear, 8... Deceleration shaft,
8a, 8b...gear, M...pulse motor,
M'...Gear, 10...Crank, 10'...Crankshaft, _S1 , _S2 ...Switch, a...Detector, E
...Material feed control circuit, E′...operation circuit.

Claims (1)

[Claims] 1. A meat slicer configured to sequentially cut a meat loaf from one end to obtain slices, including an area detection mechanism that measures the cross-sectional area of the meat loaf or the area of the cut surface of the slice when the slicer cuts the meat loaf, The measurement value detected by this area detection mechanism,
A control circuit is provided that compares a predetermined weight of a sliced piece inputted in advance to the calculation circuit with the specific gravity of a meat loaf, and calculates the material feed rate of the slicer so that the weight of the sliced piece becomes a desired set weight. A meat slicer characterized by: