JP2000006916A - Apparatus for receiving and delivering egg - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably deliver eggs which have been delivered from a single row conveyor into a container. SOLUTION: At a lower end of a driven arm 11 is provided a roller 13 which moves along an oblong hole 10 in vertically circular arc so that an upper end of the driven arm 11, which makes a group of holders descend while narrowing mutual intervals of the holders, is made to move on a substantially quarter- circumferential locus, and a swingable arm 15, which makes the driven arm swing, is pivotably joined to the driven arm. In the case where the upper end of the driven arm is made to move on the substantially quarter-circumferential locus, the holders provided toward the inner side of the group of the holders move down in a curve close to a straight line when they descend while narrowing their mutual intervals, and such a curve becomes substantially linear before and after eggs E are delivered. At the time of descent, the holders provided toward the outer side of the group are mainly operated to narrow the intervals, and their vertical movement becomes main before and after the eggs are delivered, so that the eggs can gently and stably be packed into a container 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a series of egg packaging processing steps performed by an automatic packaging machine, wherein after receiving eggs released from a single-row conveyor, the eggs are lowered while reducing the distance between holders that have received the eggs. To a device for releasing the ovum into the ova.

[0002]

2. Description of the Related Art Eggs washed and dried on a double-row conveyor are conveyed to a predetermined packing place by a single-row conveyor based on the measurement results. At each packing place, a chicken egg receiving and discharging device is installed, which receives the eggs falling parabolically from the single-row conveyor with a holder and packs them in a container for packaging. This apparatus treats 5 or 6 eggs as one processing unit, absorbs the falling energy of the parabolic eggs, receives them by a holder, and packs 5 or 6 eggs into a predetermined container at once. Work.

[0003] In order to absorb the falling energy, it is preferable to increase the interval of receiving eggs, that is, the interval between holders, from the viewpoint of preventing collision of eggs. Also, in order to pack a predetermined number of eggs in a predetermined container, it is desirable that the intervals at which the eggs are received are equal to the intervals between the ova of the containers from the beginning. However, the interval between the egg seats in the container varies depending on the size of the eggs, so in practice, the interval between the holders should be increased (60).
〜63.5 mm), the holder is lowered and packed in a container while narrowing the distance between the holders. Generally, the distance between the holders is regulated by the rebound of a spring stretched between the right and left holders.

In a conventional holder driving mechanism for realizing the above-mentioned operation of the holder, a roller pivotally attached to a pull plate for supporting both ends of a shaft for supporting the holder group reduces the distance between the holders. It moves up and down while being restrained by the determined plate cam.

[0005]

However, in the above-mentioned conventional means, in order to make the vertical movement smooth, the plate cam must be formed into a shape mainly composed of a straight line. Draws a straight line locus close to 45 °, especially when the eggs held by the outside holders enter the container, and even after the eggs are released and the holders rise and the contact between the eggs and the holders is completely eliminated. However, there was a drawback that the eggs were not stable. In addition, since the plate cam is fixed, there is only one packing place.
The inconvenience of being limited to the size was also latent.

[0006] Therefore, the problem to be solved by the present invention is to reduce the distance between the holders and release the eggs received by the holder from the single-row conveyor into a container, especially when the eggs held by the outer holder are held. The object is to make it possible to discharge the food stably into a container.

[0007]

According to the present invention, the upper end of the driven arm for lowering the holder group while narrowing the distance between the holder groups does not draw a linear trajectory as in the prior art, but an ideal one. A roller is provided at the lower end of the driven arm so as to move along a vertical arc-shaped long hole so as to draw a locus close to a / 4 circumference, and a swing arm for swinging the driven arm. The arm is pivotally connected to the driven arm.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to FIGS. However, the opening / closing mechanism of the holder is omitted in the drawings. Reference numeral 1 denotes a well-known holder provided above the container conveyor 21, which is constituted by a pair of left and right constituent pieces facing each other, and each of the constituent pieces is supported by a shaft 2 via a support frame 3. . In the illustrated example, six holders 1 are provided. Reference numeral 4 denotes a pull plate. Left and right ends of a pair of front and rear shafts 2 orthogonal to the transport direction a of the container 31 are slidably supported by the upper end of the pull plate 4. Reference numeral 5 denotes a spring which is stretched between the holders 1 to maintain a constant distance between the right and left holders 1 by a repulsive force.

Reference numeral 6 denotes a pair of left and right side plates, which are fixed to the left and right side walls of the frame 22 of the container conveyor 21. Reference numeral 7 denotes a lower yoke, which is formed in a U-shape opening upward.
The upper ends of both legs are pivotally connected to side plates 6 with pins 8. Therefore, as shown by the imaginary line in FIG. 4, the lower yoke 7 is rotated left and right around the pin 8 so that
It can be fixed by adjusting the vertical mounting angle.

Reference numeral 9 denotes an upper yoke, which is formed in a U-shape that opens upward, and is fixed to the upper surface of the lower yoke 7 in the lateral direction. In both legs, an arc-shaped long hole 10 that is convex inward is provided vertically.

Reference numeral 11 denotes a pair of front and rear driven arms, the upper end of which is pivotally connected to the outer surface of the pull plate 4 by a pin 12.
A roller 13 is pivotally attached to the lower end of the driven arm 11 and is rotatably fitted into the elongated hole 10. And
When the roller 13 is located at the upper limit of the slot 10, the roller 1
The core 3 is arranged so as to be on the same horizontal line as the core of the pin 8.

A swing shaft 14 is supported by the side plate 6. The lower end of a pair of front and rear swing arms 15 is fixed to the swing shaft 14. The upper end of the swing arm 15 is pivotally connected to a substantially central portion of the driven arm 11 with a pin 16. The swing shaft 14 is driven by a crank mechanism (not shown). Therefore, the swing arm 15 swings about the swing shaft 14.

The pins 8, 12, 16 and the roller 13 use small flange bearings in the illustrated example.

Each figure shows a state in which the holder 1 is closed and is at the upper limit, and waits for the release of the eggs E from a single-row conveyor (not shown). In this state of waiting for egg release,
The la 13 is located at the upper limit of the slot 10, and the interval between the holders 1 is
L1. When the egg E is released from the single row conveyor,
When the holder 1 receives the egg and all the six holders 1 receive the egg E, the swing shaft 14 is started by the control signal of the packaging machine, and the swing arm 15 starts rotating inward.
As a result, the left and right driven arms 11 rotate inward and downward, and move the holder 1 downward while reducing the distance between the holders.

The rotation of the driven arm 11 is restricted by the downward movement of the roller 13 restricted by the elongated hole 10, and the rotation by the elongated hole 10 is controlled by the upper end of the driven arm 11. However, it is configured to draw a locus close to an ideal quarter circle.
When the holder 1 descends by H and reaches the lower limit, that is, the egg releasing position, the interval between the holders 1 is narrowed to L2 (45 to 50 mm), which is the left and right interval of the egg seat 32 of the container 31. One (or both) of the constituent pieces of the holder 1 is opened by a control signal of the packaging machine, and the container conveyor 2 waiting below is opened.
The group of holders 1 releases the eggs E to the egg seat 32 of the container 31 on the upper side.

When the egg release is completed, the swinging shaft 14 is rotated in the opposite direction by the control signal of the packaging machine, and the swinging arm is rotated.
The arm 15 starts rotating outward while rising, but since the rotation is restricted by the elongated hole 10, the upper end of the driven arm 11 rotates along a locus close to a quarter circle. Accordingly, the outer holder 1 moves along a locus close to a quarter circle.

Here, when the upper end of the driven arm 11 draws a locus close to a 1/4 circle, the innermost one of the group of holders 1 has the center of the egg when descending while narrowing the interval between them. Traces a curve that resembles a gentle straight line, and is regarded as a straight line before and after the egg release. Outside holder is 1/4
If a trajectory close to the circumference is drawn, the operation of narrowing the distance between each other is the main operation at the start of descent, the operation of narrowing the holder before and after the discharge has little change, and the operation mainly up and down is taken, so the operation described above is performed. Egg packaging is much easier than with a plate cam.

Incidentally, the angle of attachment of the lower yoke 7 to the side plate 6 is adjusted, that is, the long hole 10 is adjusted by moving the lower core inward or outward about the upper end core. By performing the above, the interval between the holders 1 at the time of releasing the eggs can be adjusted in accordance with the interval between the ova 32 of the container 31. That is, when the lower yoke 7 is rotated outward and fixed, the distance between the holders 1 becomes narrower, so that the holder 1 can be used as a container for small eggs. On the other hand, when the holder 1 is rotated inward and fixed, the distance between the holders 1 is increased, and the holder 1 can correspond to a large egg container. This angle adjustment can be easily automated by a control signal.

[0019]

According to the present invention, since the outer holder draws a locus close to the ideal 1/4 circle, the eggs can be gently packed in a container.

By adjusting the mounting angle of the lower yoke to the side plate, it is possible to handle all sizes of packaging containers, and the mounting angle adjustment can be automated by a control signal. is there.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an operation of releasing eggs, without a holder.

FIG. 2 is a side view.

FIG. 3 is a plan view of a main part.

FIG. 4 is an enlarged sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holder 4 Pull plate 5 Spring 7 Lower yoke 9 Upper yoke 10 Elongated hole 11 Follower arm 13 Roller 15 Swing arm 21 Container conveyor 31 Container 32 Egg seat

Claims (2)

[Claims] A holder for receiving eggs released from a single-row conveyor and discharging the eggs to the ovum of a container is connected to a holder group in an egg receiving and releasing apparatus in which a distance between the holders is regulated by a spring. The roller that moves along a vertically long arc-shaped long hole is moved so that the upper end of the driven arm, which descends while narrowing the distance between the two, draws a locus close to a quarter circle. An egg receiving and discharging device provided at a lower end, wherein a swinging arm for swinging a driven arm is pivotally attached to the driven arm. 2. The egg receiving and releasing device according to claim 1, wherein the elongated hole is provided so that the angle can be adjusted by moving the lower end core inward or outward about the upper end core.