JPS5852165Y2 - fruit boxing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a boxing device for fruits such as apples whose surfaces are easily damaged.

When mechanically packing fruits whose surfaces are easily damaged during handling, such as apples and peaches, the fruit fed from the fruit feeding mechanism to the storage box may be placed on the bottom or sides of the storage box, or may have already been placed in the storage box. Measures must be taken to prevent injuries that occur when colliding with the fruit contained within.

For this purpose, the present applicant places the supply end of a fruit supply mechanism that can be raised and lowered up and down from above in a fruit storage box that is installed to rotate horizontally and has an open top. The occurrence of damaged fruit is eliminated by providing a sensor at the end that issues a signal to raise the fruit supply mechanism when it comes into contact with the fruit supplied in the fruit storage box, and to lower the fruit supply mechanism when it does not come into contact with the fruit. We are proposing a boxing device that does this.

However, in this proposed box packing device, since the rotation speed of the storage box is constant, if the amount of fruit supplied by the fruit supply mechanism is uneven, the frequency of raising and lowering of the fruit supply mechanism increases.
The lifting and lowering operations may be wasteful.

Therefore, in addition to the sensor, the present invention provides a control mechanism that detects fruit passing through the feeding end of the fruit feeding mechanism and controls the rotation of the fruit storage box, thereby increasing the amount of fruit fed from the feeding end. If there are many cases, rotate the storage box quickly.
When the amount of fruit supplied is small, the rotation of the storage box is slowed down, and when there is no amount of fruit supplied, the rotation of the storage box is stopped, thereby eliminating the occurrence of fruit damage when mechanically packing fruit. To provide a fruit boxing device that can efficiently pack fruits.

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 has an open upper part;
This fruit storage box has a substantially square planar shape, and the bottom of this storage box 1 is provided with support legs 1a that form a space into which a fork of a forklift is inserted.

This storage box 1 is supported horizontally by a vertical rotating shaft 2, is placed on a turntable 3 that is slightly larger than the planar shape of the storage box 1, and has a roughly square shape, and is rotated in the direction of the arrow in FIG. It looks like this.

A supply end 4a of the fruit supply mechanism 4 is exposed inside the storage box 1 from above.

The fruit supply mechanism 4 includes a pair of left and right frames 5 that are L-shaped.
, 5, a pair of chinos 11, 11 are endlessly stretched along the outer periphery of the frames 5, 5 via each pair of driving sprocket wheels 6 and driven sprocket wheels 7.8, 9.10. A large number of cross pars 12, 12... are installed at predetermined intervals between the chenos 11, 11,
A rubberized cloth belt 13 is attached continuously to each cross spar 12, and a fruit storage recess 13 is attached inside between the cross spar 12.12.
3 and 4, and the feeding end 4a faces into the fruit storage box 1 as described above, and between the lowermost sprocket wheels 8, 8, As shown in FIG. 2, a discharge roller 14 having an engaging groove 14a on its circumferential surface that engages with the cross spar 12 is installed, and between the sprocket wheels 9, a fruit storage is inserted from the back of the rubberized cloth belt 13. An extrusion roller 15 for extruding the fruit A accommodated in the recess 13H is mounted eccentrically with respect to the axis of the sprocket wheel 9.

Although not shown, the fruit supply mechanism 4 is equipped with an elevating mechanism that moves up and down relative to the fruit storage box 1, and is configured to move up and down with the rotating shaft 6a of the drive sprocket wheel 6 as a fulcrum.

Furthermore, rotational power is transmitted from the motor 16 to the rotating shaft 6a.

In addition, at the fruit discharging position of the supply end 4a, a rotating shaft 6a is designed to move slightly back and forth as shown in FIG. As shown in FIG. 1, the fruit storage box 1 is arranged so as to be discharged in the rotational direction at a position offset from the center of rotation, and a discharge guide plate 17 is provided at this discharge position.

Further, the supply end portion 4a is provided with first and second sensors 18 for detecting the pile height of the fruits A shown in FIGS. 5 and 6.
, 19 are provided.

The first sensor '18 includes a detection plate 20 whose base end is pivotally supported on the frame 5 by a pin 20a and whose tip side is bent along the rotational direction of the fruit storage box 1, and a detection plate 20 that is in contact with the fruit A. a first microswitch 21 that is turned on by a detection plate 20 when
When the bottom of the guide plate 17 comes into contact with the fruit A, the guide plate 1
7, and a second microswitch 23 that is turned on by the switch 7.

and the first and second microswitches 21.23
is coupled to send a signal to the lifting mechanism;
When either or both of the macro switches 21 and 23 are turned on, the fruit supply mechanism 4 is raised, and when both micro switches are turned off, the fruit supply mechanism 4 is raised after 2 seconds.
is made to descend.

Furthermore, a pair of photoelectric switches 24 shown in detail in FIG. 7 are arranged above both measuring parts of the discharge guide plate 7.

This charging switch 24 detects the fruit A passing over the discharge guide plate 7 (that is, the supply end 4a), and is connected to the circuit diagram shown in FIG. 8, and controls the rotation of the fruit storage box 1. It is something to do.

In FIG. 8, X, Y, and Z are electromagnetic coils of relays X, Y, and Z.

DRl and DR2 are delay relays, and the delay time is 0 for DRl.
~10 seconds, and DR2 is variable between 0 and 5 seconds.

DM, DMH are the turntable 3 (rotating shaft 2)
These are the low-speed side terminal and high-speed side terminal of the motor that drives the motor.

0P-a is a normally open contact of the charging switch 24.

In addition, the relay X has a normally closed contact X -a' and a normally open contact X
a, normally open contact x-b, relay Y, normally open contact Y-a,
y-b, relay Z has band junction Z a/, normally open contact z-b, delay relay DR1 has normally closed contact DR1a/, and delay relay DR2 has normally open contact DR2-a. There is.

Then, when the fruit supply mechanism 4 is driven and the fruit A passes over the discharge guide plate 17, the light between the photoelectric switches 24 and 24 is blocked, contacts 0P-a are turned on, and relays X and Y are activated. The motor of the turntable 3 starts rotating at a low speed and rotates the fruit storage box 1 at a constant speed.

After that, if fruit A does not pass for more than the set time of delay relay DR1, delay relay DR□ is activated and relay
The rotation of the motor is stopped by turning off Y and contact 0P-a.

The remoter continues to rotate at a low speed as long as the delay relay DR1 does not operate, but during this time, if the amount of fruit supplied from the fruit supply mechanism 4 increases and the fruit A overflows on the discharge guide plate 17, the delay relay DR2 is activated. The photoelectric switch 24 is blocked for more than the set time, and the delay relay DR2
is activated, and at the same time relay Z is activated and the motor begins to rotate at high speed.

Due to this high-speed rotation, when the light of the photoelectric switch 24 is turned on and the fruit A passes within the set time of the delay relay DR2, the delay relay DR2 is turned off, relay Z is turned off, relays X and Y are turned on, and the motor is turned on. Return to low speed rotation.

In the fruit boxing device configured as described above, when the fruit A is fed to the starting end side of the fruit feeding mechanism 4 by an appropriate means, the fruit A is transferred to the fruit storage recess 1 of the rubberized cloth belt 13 by its own weight.
3a and is transferred in the direction of the arrow in FIG. 2, and at the supply end 4a, as shown in FIGS. The rubberized cloth belt 13, which is fixed to the fruit A, is stretched out by a discharge roller 14 so as to push the fruit storage recess 13a outward, and at the same time, it is pushed by a push roller 15, and the fruit A is discharged and passes through the discharge guide plate 17. The fruits are stored in the fruit storage box 1 through the fruit storage box 1.

When the fruit A passes through the discharge guide plate 17, the light from the photoelectric switch 24 is blocked, the contact 0P-a is turned on, and the turntable 3 is rotated at low speed by the motor, and the fruit storage box 1 placed on it is turned on. Rotate in the direction of the arrow in Figure 1.

After that, if the fruit A does not pass over the discharge guide plate 17 within a certain period of time (variable between 0 and 10 seconds), the motor will stop rotating. If the fruit A flows at intervals, the motor continues to rotate at a low speed.

When the amount of fruit A supplied is greater than the amount of fruit A fed by the rotation of the fruit storage box 1, the fruit stagnates on the discharge guide plate 17, and the photoelectric switch 24 is activated for a certain period of time (variable between 0 and 5 seconds). ), the motor rotates at high speed and the amount of fruit A delivered to fruit storage box 1 increases, and when the stagnation of fruit A is resolved, the motor returns to low speed rotation.

In this way, the alternating current switch 24 automatically controls the stop, low speed rotation, and high speed rotation of the motor that rotates the fruit storage box 1.

On the other hand, the supply end 4a of the fruit supply mechanism 4 is connected to the fruit storage box 1.
When the fruit A is not stored in the sensor 18,1
9 is located close to the bottom of the fruit storage box 1,
When the fruit A begins to be stored, the fruit A is moved up and down by the operation of the sensors 18 and 19, as shown in FIGS.

To explain this operating state in detail, the supply end 1
The fruits A discharged from 4a are stored in one place without clumping together as shown in FIG. 1 by the rotation of the fruit storage box 1.
As shown in FIG.
8, the detection plate 20 rotates around the pin 20a and is pushed up, and the first microswitch 2
1 is turned on, and the fruit supply mechanism 4 rises.

When the first microswitch 21 is turned off by this rise, the fruit supply mechanism 4 descends two seconds later, and the detection plate 20
contacts the fruit A, the microswitch 21 is turned on, and the fruit supply mechanism 4 rises again.

While repeating such raising and lowering operations alternately, the supply end portion 4a rises to follow the stacking surface of the fruits A that gradually increases in height within the fruit storage box 1.

FIG. 6 shows that the first sensor 18 is off and the second sensor 19 is off.
Although the sensor is shown to be on, it is possible to achieve most of the objectives with just one sensor.

The fruit A stored in the fruit storage box 1 in this way is
The fruit storage box 1 switches the rotation speed between high and low depending on the amount of fruit supplied, and the feeding end 4a has almost no height difference with the bottom of the fruit storage box 1 or the fruits A piled up inside the storage box. Since the fruit A is discharged, the fruit A is stored without strongly colliding with the bottom or side surface of the fruit storage box 1 or with fruits already stored, thereby preventing the occurrence of damaged fruits.

In addition, when the rotation speed of the fruit storage box 1 becomes high, the fruit supply mechanism 4 may be raised, and the fruit A
A mechanism may be provided to stop the driving of the fruit supply mechanism 4 when the fruit is accommodated at a predetermined height.

As explained above, according to the fruit boxing device of the present invention, the fruit A can be stored almost evenly in the fruit storage box 1 without any vertical difference, and therefore, the fruit A can be stored without damaging the fruit. , it can be packed completely automatically.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view of the entire device, FIG. 2 is a side sectional view thereof, FIGS. 3 and 4 are side sectional views of the supply end, and FIGS. FIG. 6 is a side sectional view of the elevation detection section of the fruit supply mechanism, FIG. 7 is a partial plan view of the supply end, and FIG. 8 is a circuit diagram of the rotation control section of the fruit storage box. 1... Fruit storage box, 3... Turntable, 4... Fruit supply mechanism, 4a...
Supply end, 17...Discharge guide plate, 18...
...First sensor, 19...Second sensor, 2
0...Detection plate, 21...First microswitch, 23...Second microswitch, 24...Photoelectric switch, x, y, z...
...Relay, DRl, DR2...Delay relay,
DML...Motor low speed side terminal, DMH...
...High-speed side terminal of the motor.

Claims (1)

[Scope of utility model registration request] The feeding end of the fruit feeding mechanism, which can be raised and lowered up and down, faces from above the fruit storage box, which is installed to rotate horizontally and has an open top. A sensor that issues a signal to raise the fruit supply mechanism when it comes into contact with the supplied fruit and lower the fruit supply mechanism when it does not come into contact with the fruit, and a sensor that detects the fruit passing through the supply end and controls the rotation of the fruit storage box. A fruit boxing device characterized by being provided with a control mechanism for performing the following steps.