JPH07289170A - Method for automatically cutting shell of egg and device therefor - Google Patents

Abstract

PURPOSE:To provide a method for cutting the shell of an egg, capable of cutting the shell into halves by cutting only the shell without crushing the shell. CONSTITUTION:The method for automatically cutting the shell of an egg comprises nipping both the ends of the egg 7 between mutually faced suckers 8, 8, rotating the egg 7 on the common central line (c) of the suckers 8, 8, bringing the central part of the rotated egg 7 into contact with guides 14, 14 disposed on both the sides of a rotation blade 10 orthogonal to the central line (c), and simultaneously cutting the shell of the egg 7 with the outer edge of the rotation blade 10 from the outside in the state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic egg breaking method and apparatus.

[0002]

2. Description of the Related Art The conventional manual egg-breaking work is the same as the mechanical one, but it is a method of hitting a thin and hard object to make a split opening and opening it to the left and right, but only the outer shell is peeled when it is first hit. When opening, the small pieces were often mixed in. It is visually inspected in small amounts and picked up spoilers, but they are overlooked, and it is difficult for the industry to use large amounts of eggs to make people who eat the products uncomfortable.

[0003]

SUMMARY OF THE INVENTION According to the present invention, since the outer shell is thinly cut and opened, no fragments are generated. Therefore, the fragments are not mixed with the contents, and the chips of the outer shell are discharged when cutting. It is an object of the present invention to provide an automatic egg breaking method and an automatic egg breaking device that do not enter the contents.

[0004]

In order to achieve the above-mentioned object, the present invention holds both ends of an egg between opposed suction cups, and rotates the egg around a common centerline of the suction cups while The center part of the rotating egg is contacted with the guide guides provided on both sides of the orthogonal rotary blades, and the egg shell is cut from the outside by the outer peripheral edge of the rotary blade in that state. The egg is divided into two parts by the opposed suction cups and opened on both sides to drop the contents of the egg. The automatic egg splitting method according to the invention described above. The eggs are placed on two pairs of rotating small diameter discs. The egg automatic slicing method according to the first or second aspect of the invention, in which the centerline of the egg in the major axis direction is corrected, and the egg is sandwiched between the opposed suction cups in that state. A diameter disc is provided, and an opposing sucker for sandwiching eggs is placed along the common center line. Around the rotary blade and the common center line that supports the large-diameter disk slidably in the opposite direction and in the opposite direction, and cuts the center of the outer shell of the egg sandwiched between the opposite suction cups in the vertical direction. An egg automatic machine provided with a device for rotating the suction cup, provided with a guide device for moving the rotary blade forward and backward in response to the arcuate rotation of the suction cup, and provided with an air suction device for the opposed suction cup. Splitting device: A conveyor orthogonal to the rotating main shaft is provided, and a plurality of pins parallel to the main shaft are supported at equal intervals on the conveyor, and a pair of small-diameter discs are supported on both sides of the pins so that they are adjacent to each other in the front and rear. A friction plate that can support the central portion of the egg between the small-diameter discs, is in contact with the lower surface of the small-diameter disc at the upper transition part of the conveyor, and has egg-opposing suction cups on both sides of the end of the upper transition part. The automatic egg breaking device according to the fourth invention described above It is.

[0005]

In the present invention, the rotating spindle and the conveyor are rotated in the same direction (directions of arrows b and e), and the egg is moved in the left-right direction (the major axis is perpendicular to the conveyor) between the two pairs of small-diameter discs in the upper transition part of the conveyor. ), The small-diameter disc contacts the friction plate and rotates forward (in the direction of arrow a), so the egg placed in the backward direction (in the direction of arrow a ′) rotates around the major axis in the backward direction. The center line is horizontally corrected and conveyed between the large-diameter discs.

At the terminal end (rear end) of the upper transition part,
Opposite suckers slide from both left and right sides of the egg toward both ends of the long axis of the egg, and the both ends are sandwiched by the suckers. When sandwiched, the centerline of the egg in the major axis direction is guided to the inner surface of the bowl of the opposing suction cup and corrected to the common centerline of the suction cup.

The sandwiched egg rotates backward from above together with the opposing suction cups as the main rotation shaft and the large-diameter discs on the left and right sides thereof rotate, and at the rear, rotates in an arc shape from top to bottom. At this time, the opposed suction cups are rotated around the common center line by the rotating device, and in this state, the center portion of the egg shell contacts the guide guide and is guided by the guide and cut by the rotary blade.

At this time, the rotary blade has a guide device provided with the above-mentioned guide guide, which is retracted further in the reverse circular arc shape and further advanced in response to the circular arc-shaped rotation of the opposed suction cup, so that the rotary blade penetrates deep into the inside of the egg shell. Without cutting, it will be cut to a uniform depth along the shell.

By the above-mentioned arc-shaped rotation and rotation around the common center line of the egg accompanying the counter sucker, the central portion of the shell is cut by the rotating blade over the entire circumference, after which the counter sucker descends and the interval is opened. Then, the two cracked shells are opened while adhering to the opposed suction cups, and the contents fall into the container to be stored in the container. After that, the suction force of the suction cup is released and the shell is separated and stored in the shell case.

[0010]

EXAMPLE A horizontal rotating main shaft 2 is provided in a machine frame 1, a gear 15 provided at one end and a gear 17 provided at an output shaft of a reduction drive motor 16 are connected by a timing belt 18, and both left and right sides of the main shaft 2 are connected. Large-diameter disks 9, 9 are provided.

At the front portion (right side in FIG. 1) of the central portion of the main spindle 2, an endless chain 3 "orthogonal to the main spindle 2 is hung on front and rear sprockets 19 and 19 'to form a horizontal chain conveyor 3. The gear 21 provided on the rotary shaft 20 of the partial sprocket 19 and the gear 22 provided on the main shaft 2 can be wound around the interlocking timing belt 23 so that the conveyor 3 and the main shaft 2 can be interlocked. Adjust the interlocking timing by changing the number of teeth.

A plurality of equally spaced pins 4 and 4 connecting the link plates of the chain conveyor 3 are extended to both sides, and a pair of small-diameter circular plates 5 and 5 are loosely supported at both ends, respectively, and they are adjacent to each other in the front and rear direction. The small diameter portion of the egg 7 can be supported between the two pairs of small-diameter discs 5, 5, and the small-diameter disc 5, below the upper transition portion 3'of the conveyor 3, 5 is provided, and the small-diameter circular plates 5 and 5 are rotated in the direction of arrow a so that the egg 7 is allowed to idle and the major-axis direction center line c ′ is corrected.

The large-diameter circular plates 9, 9 are provided with 6 sets of two slidable auxiliary shafts 24, 24 parallel to the main shaft 2 along the outer circumference at intervals of 60 degrees, respectively. The U-shaped receiver 25 is fixed to the inner ends of 24, 24, the spring 26 is interposed between the receiver 25 and the inner surface of the large-diameter disk 9, and the fixture 27 is provided at the outer end. A guide roller 28, which is orthogonal to the auxiliary shafts 24 and 24 and faces the main shaft 2 side, is loosely supported on the attachment 27.

A short cylinder 29 concentric with the main shaft 2 is fixed to the machine frame 1 on the outer surfaces of the large-diameter circular plates 9, 9, and a raised guide cam 13 is formed on the outer surface of the short cylinder 29. The guide roller 28 is brought into pressure contact with the force of the spring 26, and the guide roller 28 that rotates with the rotation of the main shaft 2 and the large-diameter circular plates 9 and 9 is guided by the raised guide cam 13 and the auxiliary shafts 24 and 24. The U-shaped receiver 25 can be slid back and forth in the same direction as the main shaft 2.

The U-shaped groove of the U-shaped receiving member 25 is opened to the outside, and the base of the U-shaped holder 30 is fitted into the groove as shown in FIGS. Is pivotally supported by the shafts 31 on both side plates 25 ', 25' of the receiving member 25, and a part of the bottom surface of the base is cut so as to open to the large diameter disc 9 side to form an inclined surface 30 ', The small ridge 32 is interposed between the inclined surface 30 ′ and the groove bottom surface of the receiving member 25, and the inner end bottom surface 30 ″ of the base of the holder 30 is moved by the force of the ridge 32 to form the groove bottom surface of the receiving member 25. The groove bottom surface 25 "of the receiving member 25 is held in parallel with the auxiliary shafts 24, 24 by being pressed into contact with 25" (FIGS. 5, 6, and 7).

The direction of the groove of the U-shaped holder 30 and the shaft 31 is orthogonal to the direction of the main shaft 2, and both side plates 30a, 3 of the groove are formed.
An air tube shaft 33 parallel to the main shaft 2 is rotatably provided in the center of the shaft 0a, and a bowl-shaped suction cup 8 is provided at the inner end thereof. The friction roller 34 is fixed to the air tube shaft 33 in the groove. A mounting rod 35 is provided on the outer surface of the outer side plate 30a so as to be parallel to the air pipe shaft 33, and the rolling guide roller 36 of the holder 30 is provided at the outer end of the rod 35.

The auxiliary shafts 24, 24, the air tube shaft 33 parallel to the auxiliary shafts 24, and the bowl-shaped suction cup 8 are provided at corresponding positions of the large-diameter circular plates 9, 9 on the left and right sides, and are provided on a common center line c. , Forming opposite suction cups 8 for sandwiching the long diameter ends of the egg 7,
The opposing suction cups 8 and 8 are moved toward and away from each other on the common center line c by the interaction of the ribs 26, the raised guide cam 13, and the guide roller 28, and are closely supported by the small-diameter discs 5 and 5 at the end of the conveyor 3. The both ends of the egg 7 that is rotated by being held can be held, and the held egg 7 can be lifted from the conveyor 3 by the upward rotation of the large-diameter discs 9, 9.

By the rotation of the large-diameter discs 9, 9, the opposed suction cups 8, 8 clamp the egg 7 and rotate in a circular arc shape from the top to the bottom at the rear portion of the main shaft 2, so that the friction rollers 34, 34 are machine frames. Since the friction plates 38, 38 having the lower end pivotally supported at 37 are pressed against the springs 39, 39, the friction rollers 34, 34 are attached to the air pipe shaft 33.
The suction cups 8, 8 and the sandwiching egg 7 rotate about the common center line c or the long-axis direction center line c'of the egg 7 according to the rotation of the suction cups 8, 8. The devices 11, 11 are formed.

An egg 7 is placed behind the large-diameter discs 9 and 9 in the middle thereof.
Is provided with a rotary blade 10 for vertically cutting the outer shell center portion,
A support base 41 of a drive motor 40 for rotating the rotary shaft 10 'is provided on a fixed base 42 in the front-rear direction guide rods 42', 4
2 ', the support base 41 is pulled forward by a spring 43, and the arc guide guide 14 is provided on the support base 41 side,
14 are provided on both sides of the front portion of the rotary blade 10, and the blade tip of the rotary blade 10 is projected slightly forward along the front arc shape of the guide guides 14, 14 as shown in FIG.

The shell of the rotating egg 7 descending in an arc shape from the top to the bottom is cut by the rotary blade 10 at the position shown in FIG. Since the guides 14 and 14 are pushed rearward along the arc line L, the guide guides 14 and 14 are pushed backward together with the support blade 41 together with the rotary blade 10 against the force of the spring 43.
Egg 7 shown in FIG. 11 from the position of egg 7 shown in FIG.
Of the rotary blade 10
A guide device 51 for advancing and retracting the suction cups 8 and 8 in accordance with the arcuate rotation of the suction cups 8 and 8 is formed, and the shell 7 ″ of the egg 7 is shelled by the rotary blade 10 that moves back and forth as the guide guides 14 and 14 move forward and backward. The entire circumference of 7 "is cut and cut. Before cutting, the air is sucked from the air pipe shafts 33, 33 by the air suction device 52, 52, and the opposed suction cups 8, 8 are cut.
7 "is adsorbed (shown in FIGS. 3, 13, and 14).

After that, the rolling guide rollers 36, 36 are guided by the lower guide guides 12, 12 (see FIGS. 5 and 8), and the holders 30, 30 and the opposed suction cups 8, 8 are driven by the shafts 31, 3, 3.
Since it is tilted downward obliquely against the small striations 32, 32 centering around 1, the content 7'of the egg 7 is cut into two pieces and divided from the adsorbing shells 7 ", 7" below the container by its own weight. It is dropped and accommodated in 44 (the state is shown in FIG. 3).

After that, when the large-diameter discs 9 and 9 rotate about 60 degrees, the air suction from the air tube shaft 33 is closed, the air suction force is released, and the adsorption shells 7 "and 7" are moved from the opposed suction cups 8 and 8. The detachable chute 45 is housed in the shell container 46. The opposed suction cups 8 and 8 are the springs 2 provided on the auxiliary shafts 24 and 24.
6, 26, the raised guide cam 13, and the guide roller 28 interact with each other, so that the auxiliary shafts 24, 24 and the opposed suction cups 8, 8 are provided.
Slide outward, open the gap between the opposed suction cups 8 along a common center line, and rotate the rotary egg 7 directly below both ends of the rotating egg 7 supported by the small-diameter disks 5 and 5 at the end of the conveyor 3. Move,
When further raised and opposed to both ends of the rotary egg 7, the suckers 8 are brought closer to each other by the force of the spring 26 as the raised guide cam 13 is lowered, and both ends of the rotary egg 7 are clamped. ,
The same operation as described above is repeated.

An air suction device 5 is attached to each of the air pipe shafts 33.
One end of 2, 52 of the air suction tube 33 'is connected and the other end is connected to the large-diameter circular plate 9 to form an opening 33 "as shown in FIGS. 13 and 14, and the opening 33" is fixed to the fixed circular plate. Air is alternately sucked from the independent arc-shaped double suction grooves 48 and 48 ′ formed in 47. These double suction grooves 48, 4
8 ′ is open up to the portion where the shell 7 ″ is dropped onto the chute 45 after the shell 7 ″ has been bisected from the portion to be cut by the rotary blade 10.

Independent suction pipes 49 and 49 'are connected to the double suction grooves 48 and 48', respectively, and the independent suction pipes are connected to independent vacuum cans 50 and 50 ', respectively, and the opposed suction cups 8 and
Even if the egg 7 is not erroneously supplied to 8, the egg 7 can be adsorbed to the next opposed suction cups 8, 8.

The opposing suction cups 8 and 8 which have adsorbed the above-mentioned bipartite shells 7 "and 7" slide in the direction opposite to the opposing direction due to the interaction of the spring 26, the guide cam 13 and the guide roller 28, and are spaced apart from each other. You can drop the contents of an egg.

[0026]

Since the present invention is based on the above-mentioned method, there is an effect that only the outer shell of an egg can be smoothly cut and the egg can be safely bisected and the contents can be easily taken out without producing fragments. Further, since the present invention is configured as described above, the egg fed between the two sets of small-diameter discs adjacent to each other in the front and rear is rotated to correct the center line, and is further sandwiched by the opposed suction cups so that the rear portion of the rotary spindle is from above. When descending (revolving) along an arc line, the sucker and the egg rotate (rotate by forced rotation), and the shell of the egg moves the rotary blade backward by the guide device, and further forward. Since the shell is cut by the blade while moving, the cutting depth is constant and does not go deep into the contents, and cuts regardless of the size of the egg and without damaging the shell,
The cutting powder adheres to the rotary blade and is discharged to the outside of the shell. Then, the halved shell is opened along with the opposing suction cup, and only the contents are dropped and unloaded, and there is an effect that only the contents can be safely and automatically dropped and discharged without the fragments of the shell being mixed.

[Brief description of drawings]

FIG. 1 is a plan view showing an automatic egg breaking device of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of FIG. 1 as viewed from the left.

FIG. 4 is a plan view of a cut state of an egg shell.

FIG. 5 is an enlarged side view of one of the opposing suckers for sandwiching an egg.

FIG. 6 is a plan view taken along the line AA of FIG.

FIG. 7 is a rear view taken along the line BB of FIG.

FIG. 8 is a rear view taken along the line CC of FIG.

FIG. 9, FIG. 10 and FIG. 11 are side views showing a state where eggs are cut by a rotary blade.

FIG. 12 is an explanatory diagram of a suction tube.

FIG. 13 is an explanatory diagram of an air suction state.

FIG. 14 is a front view seen from the line D-D of FIG.

[Explanation of symbols]

 1 Machine frame 2 Rotating main spindle 3 Conveyor 3'Upper transition part 4 Pin 5 Small diameter disc 6 Friction plate 7 Egg 8 Opposite sucker for egg clamping c Common center line c'Longitudinal center line 9 Large diameter disc 10 Rotating blade 11 Sucker Rotating device 12 Lower guide guide 13 Guide cam 14 Rear guide guide 51 Guide device 52 Air suction device

Claims (5)

[Claims] 1. An egg is sandwiched between opposed suction cups, and while the egg is rotated around a common center line of the suction cup, the rotation is performed by guide guides provided on both sides of a rotary blade orthogonal to the center line. An automatic egg splitting method, which comprises contacting a central portion of an egg, and then cutting the shell of the egg from the outside with the outer peripheral edge of the rotary blade in that state. 2. The automatic egg breaking method according to claim 1, wherein the shell divided into two by cutting is adsorbed by the opposed suction cups and opened on both sides to drop the contents of the egg. 3. The egg is placed on two pairs of rotating small-diameter discs, the egg is allowed to idle, the center line of the egg in the major axis direction is corrected, and the egg is sandwiched between the opposing suction cups in that state. ) Or the automatic egg dividing method described in (2). 4. A large-diameter disk is provided on both left and right sides of a rotary spindle provided on a machine frame, and the large-diameter disk is provided so that the egg-sucking opposed suction cups can slide in opposite directions and opposite directions along a common center line. And a device for rotating the sucker around the common center line and a rotary blade for vertically cutting the outer shell center portion of the egg sandwiched between the opposing suction cups at both ends. An automatic egg breaking device comprising a guide device for moving the sucker forward and backward in response to the arcuate rotation of the sucker and an air suction device provided on the opposed sucker. 5. A conveyor orthogonal to a rotating main shaft is provided, a plurality of pins parallel to the main shaft are supported at equal intervals on the conveyor, and a pair of small-diameter discs are supported on both sides of the pins. A friction plate that can support the central part of the egg between the small-diameter discs adjacent to each other, and that is in contact with the lower surface of the small-diameter disc at the upper transition part of the conveyor, is provided on both sides of the end portion of the upper transition part for sandwiching eggs. The automatic egg breaking device according to claim 4, further comprising a suction cup.