JPH11300694A - Feeder reciprocating drive unit for food slicer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a food slicer from being oscillated on the basis of reciprocating motion of a feeder. SOLUTION: A food slicer is provided with a rotating round cutter 2 and a feeder 5 for feeding food. The feeder 5 is connected to feeder reciprocating drive mechanism including crank mechanism 6, so as to be reciprocated between a cutting position facing the round cutter 2, and a feed position not facing the round cutter 2. When the feeder 5 moves back to return into the feed position, food set to the feeder 5 is fed by a cut thickness portion, and when the feeder 5 moves to reach the cutting position, the tip of the food protruded from the tip of the feeder 5 is cut by the rotating round cutter 2. In such a food slicer, the rotating speed of a crankshaft 11 of the crank mechanism 6 is reduced while the feeder 5 is traveling in the vicinity of the cutting position or in the vicinity of the feed position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reciprocating a feeder in a food slicer for cutting food such as meat.

[0002]

2. Description of the Related Art A meat slicer for meat is placed on a machine base,
A rotating round blade and a feeder for supplying food are provided. The feeder is reciprocally movable between a cutting position facing the round blade and a supply position not facing the round blade, and is connected to the electric motor via a crank mechanism, a speed reducer, and a belt transmission mechanism.

When the operation switch is turned on, the circular blade is driven to rotate. Further, the supply device is reciprocated between the cutting position and the supply position. Each time the feeder returns and returns to the feed position,
The food set on the supply device is supplied by the cut thickness. Each time the feeder moves forward and reaches the cutting position, the tip of the food projecting at the tip of the feeder is cut by the rotating round blade.

[0004] When the operation switch is turned off, the rotary drive of the circular blade is stopped, and the circular blade is inertially rotated and stopped. The feeder is
The drive of the electric motor does not stop and the forward movement or the backward movement is continued.
When the feeder reaches a position a predetermined distance before the feed position,
The electric motor stops driving and is braked, and the supply device is braked and stopped at the supply position.

[0005]

However, in the above-described food slicer, if the rotation speed of the electric motor is increased to increase the number of reciprocating movements of the feeder per unit time in order to increase the cutting efficiency of the food, the reciprocating movement is difficult. Inertia generated in the feeder increases, and the food slicer may swing as the feeder reciprocates.

Further, in order to stop the supply device at the supply position, when the electric motor is braked, slippage occurs between the belt and the pulley of the belt transmission mechanism or the belt expands, and the supply device stops at the stop position. Distance from the supply position may increase.

Further, the belt or pulley of the belt transmission mechanism may be worn to generate dust, and the dust may adhere to food. Not hygienic.

[0008]

In the food slicer as described above, the feeder moves closer to the cutting position where the forward movement is changed to the backward movement than when moving forward or backward halfway between the supply position and the cutting position. When traveling, or when traveling near the supply position where the backward movement is changed to the forward movement, the acceleration increases and the inertia force increases. Further, as the rotation speed of the electric motor, that is, the rotation speed of the crankshaft of the crank mechanism increases, the acceleration of the supply device increases, and the inertia force increases.

Therefore, while the feeder travels near the cutting position or near the supply position, the rotational speed of the crankshaft of the crank mechanism is reduced in order to reduce the inertial force of the feeder. Also, the idea is that this deceleration is performed only during high-speed operation in which the food slicer may swing based on the reciprocating motion of the feeder.

The reason why the distance between the stop position of the supply device and the supply position becomes large is that the belt is slipped or stretched by the belt transmission mechanism in the reciprocation drive mechanism of the supply device. The idea was to eliminate the mechanism.

When the belt transmission mechanism is eliminated from the supply reciprocating drive mechanism, the shift of the stop position of the supply apparatus based on the belt transmission mechanism is eliminated, and the supply apparatus that stops braking together with the supply apparatus when stopping the supply apparatus. The moment of inertia of the reciprocating drive mechanism is reduced, and it becomes easier to stop the supply brake.

Further, when the belt transmission mechanism is eliminated from the feeder reciprocating drive mechanism, dust due to wear of the belt or the pulley is not generated. Be hygienic.

[0013]

SUMMARY OF THE INVENTION The present invention comprises a rotating blade and a feeder for feeding food, wherein the feeder is positioned between a cutting position facing the round blade and a feeding position not facing the round blade. Is reciprocally movable and connected to a feeder reciprocating drive mechanism including a crank mechanism, and when the feeder moves back and returns to the feed position,
When the food placed on the feeder is fed by the cutting thickness and the feeder moves forward and reaches the cutting position, the tip of the food protruding at the tip of the feeder is cut by the rotating round blade. , A feeder reciprocating drive device characterized in that the rotational speed of a crankshaft of a crank mechanism is reduced while the feeder travels near a cutting position or near a feed position.

Further, this reciprocating drive device is characterized in that this deceleration is performed only during high-speed operation in which the number of reciprocating motions per unit time is high.

Further, in the feeder reciprocating drive device, the deceleration is performed while the feeder travels near the cutting position and also near the feed position.

Further, according to the present invention, there is provided a rotating round blade and a supply unit for supplying food, and the supply unit can reciprocate between a cutting position facing the round blade and a supply position not facing the round blade. When the feeder moves back and returns to the feed position, the food set on the feeder is supplied by the cutting thickness, and the feeder moves forward to reach the cutting position. Then, the tip of the food projecting at the tip of the feeder is cut by the rotating round blade, and when stopping the feeder at the feed position, when the feeder reaches a position a predetermined distance before the feed position, the feeder is turned off. In the food slicer to be braked, the feeder reciprocating drive mechanism is a feeder reciprocating drive device that is configured without using a belt transmission mechanism.

Further, the feeder reciprocating drive mechanism is a feeder reciprocating drive device characterized by comprising a crank mechanism, a speed reducer and an electric motor.

[0018]

According to the present invention, while the inertia force of the feeder increases, while the feeder travels near the cutting position or near the supply position, the rotational speed of the crankshaft is reduced to reduce the inertia force of the feeder. Therefore, the food slicer is less likely to swing based on the reciprocation of the supply device.

When the rotation speed of the crankshaft is reduced only during high-speed operation, no extra deceleration control is performed during low-speed operation in which the food slicer does not swing due to reciprocation of the feeder.

Further, since the feeder reciprocating drive mechanism is configured without using the belt transmission mechanism, there is no shift in the stop position of the feeder due to slippage or extension of the belt of the belt transmission mechanism.
The inertia moment can be reduced as compared with a conventional feeder reciprocating drive mechanism using a belt transmission mechanism. It is easy to stop the supply brake. Since no dust is generated due to wear of the belt or the pulley of the belt transmission mechanism, it is sanitary.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A food slicer provided with a feeder reciprocating drive device according to an embodiment is for meat, and as shown in FIGS. A rotating shaft 3 fixed to the center of the blade 2 is supported in the left-right direction, and a cut surface including a cutting edge at a peripheral edge of the round blade 2 is arranged on a vertical surface along the front-rear direction. The rotating shaft 3 is connected to an electric motor in the machine base 1 and constitutes a mechanism for driving the round blade 2 to rotate.

As shown in FIGS. 1 and 2, on the left front part of the machine base 1, a contact plate 4 is provided vertically to the front side of the round blade 2, and the contact surface of the contact plate 4 is cut by the round blade 2. It is arranged parallel to the surface, and the backing plate 4 is movable in the left-right direction. The backing plate 4
The contact surface is arranged on the back side of the round blade 2 by the cutting thickness from the cut surface of the round blade 2.

As shown in FIGS. 1 and 2, a feeder 5 for supplying food is placed on the machine base 1 at a cutting position facing the cutting surface of the round blade 2 and at a contacting surface of the contacting plate 4. It is provided so as to be capable of reciprocating in the front-rear direction between a supply position facing the cutting surface of the round blade 2 and not facing the cutting surface.

The feeder reciprocating drive unit connects the lower part of the feeder 5 to a motor 8 via a crank mechanism 6 and a speed reducer 7, and reciprocates the feeder 5 between a cutting position on the rear side and a feed position on the front side. A driving mechanism is configured. An electric circuit for driving the electric motor 8 is provided.

When the motor 8 is driven, the supply device 5 reciprocates between the cutting position and the supply position. Each time the supply device 5 moves back and returns to the supply position, the food set on the supply device 5 is supplied to the backing plate 4 side by the cut thickness. Each time the feeder 5 moves forward and reaches the cutting position, the tip of the food projecting at the tip of the feeder 5 is cut by the rotating round blade 2.

The crank mechanism 6 comprises a rod 9, an arm 10, and a crankshaft 11, as shown in FIG. The tip of the rod 9 is rotatably connected to a mounting piece 12 fixed to a lower part of the supply device 5. The rod 9 and the arm 10 are arranged on the machine base 1, and the crankshaft 11 penetrates the top plate of the machine base 1.

The speed reducer 7 and the electric motor 8 are arranged in the machine base 1. The speed reducer 7 is composed of a worm gear mechanism, and has a crankshaft 11 as an output shaft and an input shaft connected to a rotating shaft of the electric motor 8 by a shaft coupling 13.

The feeder reciprocating drive mechanism from the electric motor 8 to the mounting piece 12 via the crank mechanism 6 and the speed reducer 7 does not use a belt transmission mechanism. The moment of inertia is smaller than that of a conventional feeder reciprocating drive mechanism using a belt transmission mechanism.

As shown in FIG. 1, the speed reducer 7 projects an output shaft serving also as the crankshaft 11 to the lower side of the casing.
The base end of the operation piece 14 is fixed to the lower end of the output shaft 11.
On the lower side of the casing of the speed reducer 7, as shown in FIG.
Sensor 15 for fixed position stop, sensor 1 for deceleration near cutting position
6 and the sensor 17 for deceleration near the supply position are mounted around the output shaft 11 so that the mounting position can be adjusted.

Each of the sensors 15, 16, 17 is
This is a proximity switch, which is activated when the tip of the operating piece 14 that rotates by the rotation of the crankshaft 11 approaches.

The fixed position stop sensor 15 is activated when the supply device 5 reaches a position a predetermined distance before the supply position. The deceleration sensor 16 near the cutting position is activated when the supply device 5 reaches a position a predetermined distance before the cutting position. The deceleration sensor 17 near the supply position is activated when the supply device 5 reaches a position a predetermined distance before the supply position.

As shown in FIG. 4, the motor 8 is connected to a power supply 22 via an inverter 21, a speed setting device 23 is connected to the inverter 21, and a dial 2 is connected to the speed setting device 23.
4 is connected, and the rotation speed of the electric motor 8 is controlled in accordance with the value set by the dial 24.

A deceleration control device 25 is provided, and a speed setting dial 24, a deceleration sensor 16 near the cutting position, and a deceleration sensor 17 near the supply position are provided at the input terminals of the deceleration control device 25.
And the output end of the deceleration control device 25 is connected to the speed setting device 23.

The rotational speed of the motor 8 set by the dial 24 is high, and the number of reciprocations of the supply unit 5 per unit time is high.
In the embodiment, at the time of high-speed operation of 55 times / minute or more,
The food slicer may swing based on the reciprocating motion of the food slicer.

In high-speed operation, when the supply device 5 reaches a position a predetermined distance before the cutting position and the sensor 16 for deceleration near the cutting position is activated, the deceleration control device 25 outputs and the rotation speed of the motor 8 is reduced by a predetermined amount. I do.

When a predetermined time has elapsed since the deceleration sensor 16 near the cutting position has been activated, that is, when the supply device 5 has reached a position a predetermined distance away from the cutting position instead of the forward movement and the backward movement, the deceleration control is performed. The output of the device 26 stops, and the rotation speed of the electric motor 8 is restored to the value before deceleration.

That is, while the supply device 5 is traveling near the cutting position, the rotation speed of the electric motor 8 and thus the rotation speed of the crankshaft 11 are reduced by a predetermined amount.

When the supply device 5 reaches a position a predetermined distance before the supply position and the sensor 17 for decelerating near the supply position operates, the rotational speed of the electric motor 8 is reduced by a predetermined amount. When a predetermined time elapses after the deceleration sensor 17 near the supply position has been activated and the supply device 5 reaches a position a predetermined distance away from the supply position instead of the backward movement, the rotational speed of the electric motor 8 is reduced. Restore to previous value.

That is, while the supply device 5 is traveling near the supply position, the rotation speed of the electric motor 8, that is, the rotation speed of the crankshaft 11, is reduced by a predetermined amount.

When the number of reciprocations of the supply unit 5 per unit time is low, that is, at a low speed of less than 55 times / minute in the embodiment, even if the supply unit 5 runs near the cutting position or the supply position, the rotation of the electric motor 8 is stopped. Speed is not reduced. During low-speed operation, there is no possibility that the food slicer will swing based on the reciprocating motion of the supply device 5.

As shown in FIGS. 1 and 2, a table 31 is provided on the left side of the machine base 1 so as to horizontally protrude leftward from a position below the round blade 2 and the backing plate 4.

As shown in FIGS. 1 and 2, a mounting plate 32 is vertically fixed along the left-right direction on the lower front side of the table 31, and the operation switch 33 is passed through the mounting plate 32 in the front-rear direction. Attached.

As shown in FIGS. 2 and 5, the operation switch 33 has a predetermined range 34 on the front side thereof as a detection range. When a hand enters the detection range 34, the contact is closed and the hand enters the detection range 34 again. Non-contact type where the contacts are open.

In the embodiment, the operation switch 33 emits infrared light from the light emitter toward the detection range 34, and the detection range 3
An infrared reflection type photoelectric switch or photoelectric sensor of a focus sensing type that switches the opening and closing of contacts when an object is inserted into the object 4 and the light reflected by the object is received by the light receiver.

As shown in FIGS. 2 and 5, a malfunction preventing piece 35 of a bent plate that covers the left side and the front side of the detection range 34 of the operation switch 33 is fixed to the mounting plate 32. Therefore,
The direction in which the hand enters the detection range 34 is restricted from the upper side, the right side, and the lower side, which are not covered with the malfunction prevention piece 35. When operating the operation switch 33, the user normally puts his / her hand in the detection range 34 from the upper side, right side, or upper right side.

The operation switch 3
When 3 is inserted, the round blade 2 starts rotating, and the electric motor 8 is driven, so that the feeder 5 starts reciprocating.

When the operator again puts his hand in the detection range 34 and turns off the operation switch 33, the rotary cutter 2 stops rotating, and stops rotating due to inertial rotation. In addition, the supply device 5 does not stop the driving of the electric motor 8 and continues the forward movement or the backward movement. When the supply device 5 reaches a position a predetermined distance before the supply position, the fixed position stop sensor 15 operates. Then, the drive of the electric motor 8 is stopped and braked, and the supply device 5 is braked and stopped at the supply position. Since the belt reciprocating drive mechanism does not use the belt transmission mechanism, there is no shift in the braking stop position of the supply unit 5 due to the slip or extension of the belt of the belt transmission mechanism.

As shown in FIGS. 1 and 2, the mounting plate 32 is mounted on the right side of the operation switch 33 through an emergency stop switch 36 in the front-rear direction. The emergency stop switch 36 is a normal push button switch whose normally closed contact is opened when the front end push button is pressed.

When the emergency stop switch 36 is pressed, the round blade 2
Is stopped due to inertial rotation, while the supply device 5 immediately stops braking at that position.

<Modification> In the above-mentioned food slicer, the food set on the supply device 5 is supplied by the supply device provided on the supply device 5, and the round blade and the abutment plate are arranged at an angle. , The feeder is arranged to be inclined downward at the tip, and every time the feeder returns to the feed position facing the patch plate and not facing the round blade, the food set on the feeder is directed toward the patch plate by its own weight. Make up to be fed down.

[Brief description of the drawings]

FIG. 1 is a partially longitudinal front view of a food slicer provided with a feeder reciprocating drive device according to an embodiment of the present invention.

FIG. 2 is a plan view of the food slicer.

FIG. 3 is an enlarged view of a speed reducer portion of the feeder reciprocating drive device of the food slicer as viewed from below.

FIG. 4 is a block diagram of a deceleration control portion of an electric motor of the feeder reciprocating drive device of the food slicer.

FIG. 5 is a sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 2 Round blade 5 Feeder 6, 7, 8, 12 Supplier reciprocating drive mechanism 6 Crank mechanism 7 Reduction gear 8 Motor 11 Crankshaft

Claims (5)

[Claims] 1. A crank mechanism comprising a rotating round blade and a feeder for supplying food, wherein the feeder can reciprocate between a cutting position facing the round blade and a supply position not facing the round blade. When the feeder moves back and returns to the feed position, the food set on the feeder is supplied by the cutting thickness, and the feeder moves forward to reach the cutting position. Then, in the food slicer in which the tip of the food projecting at the tip of the feeder is cut by the rotating round blade, while the feeder travels near the cutting position or near the supply position, the crank of the crank mechanism A reciprocating feeder for a feeder, characterized in that the rotation speed of a shaft is reduced. 2. The supply reciprocating drive device according to claim 1, wherein the rotation speed of the crankshaft is reduced only during high-speed operation in which the number of reciprocations of the supply per unit time is high. 3. The method according to claim 1, wherein the rotation speed of the crankshaft is reduced while the feeder travels near the cutting position and also near the supply position. Feeder reciprocating drive. 4. A feeder, comprising a rotating round blade and a feeder for supplying food, wherein the feeder is capable of reciprocating between a cutting position facing the round blade and a feeding position not facing the round blade. When connected to the reciprocating drive mechanism, the feeder moves back and returns to the feed position, the food set on the feeder is supplied by the cutting thickness, and when the feeder moves forward and reaches the cutting position, the feeder The tip of the food protruding at the tip of is cut by the rotating round blade,
When the feeder is stopped at the feed position and the feeder reaches a position a predetermined distance before the feed position, in the food slicer where the feeder is braked, the feeder reciprocating drive mechanism is configured without using a belt transmission mechanism. A feeder reciprocating drive device. 5. A feeder reciprocating drive mechanism comprises: a crank mechanism;
The feeder reciprocating drive device according to claim 4, wherein the feeder reciprocating drive device is configured by using a speed reducer and an electric motor.