JP2003034434A - Molded tray for egg releasing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save labor by achieving high-precision mechanization of working of holding accumulated molded trays securely, and releasing and feeding the molded trays to an egg-selecting machine one by one. SOLUTION: In this mechanism, the swing of a first swinging shaft 9 causes supporting levers 17 and supporting levers 16 to swing so as to suspend and hold the accumulated molded trays 15 with supporting claws 17b of the supporting levers 17 and contact parts 16a of the supporting levers 16, and then the swing of a second swinging shaft 12 causes pedestal levers 19 and releasing levers 18 to swing so that the pedestal levers 19 are separated from the molded trays and the releasing claws 18c of releasing levers 18 with arc guide parts 18b push down a mold tray at the lowermost level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container (mold tray) used for packing and storing the selected eggs in a step of collecting, washing and selecting the eggs. The present invention relates to a peeling mechanism equipped in an automatic egg egg mold tray feeder for peeling one by one and sending it to the next work process.

[0002]

2. Description of the Related Art In a process of washing and selecting eggs, the selected eggs are packed in a mold tray, and the mold tray has a shape in which a single recycled paper is formed into a shape having a plurality of recesses in the shape of the eggs. After being molded, for example, as shown in FIG. 1, several tens of sheets are stacked and set in a mold tray feeder of an egg selector. The set mold trays must be peeled off one by one and supplied to the egg selector. Conventionally, it has been considered difficult to peel off the stacked mold trays by a machine, and this has been done manually.

[0003]

In the manual peeling and supplying work of the mold tray, there is a problem that a worker usually takes charge of about four mold tray supplying machines, which requires a great deal of labor. In these days when it is difficult to secure a labor force due to lack of manpower, aging, etc., there has been a desire for mechanization of the above-mentioned work that can save labor. Therefore, the present applicant has proposed an apparatus of this type based on Japanese Patent Application No. 6-189783 mentioned above.

The chicken egg mold tray feeder according to Japanese Patent Application No. 6-189783 peels the uppermost mold tray of the stacked mold trays with a peeling body, and at the same time, the next mold tray stops with a stop body. The mold tray peeling mechanism that operates so as to be fixed by the mold tray, the mold tray transfer mechanism that is configured by the arm that operates after the mold tray is peeled by the peeling body and holds and transfers the mold tray, and the mold tray lifting mechanism that lifts the mold tray. And a mechanism. With this structure, the stacked mold trays can be peeled off one by one and supplied to the egg selector (selecting step), thus eliminating the above-mentioned problems.

The present invention is also developed to solve the above problems, and an object of the present invention is to provide a peeling mechanism having a novel structure.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 of the present application provides a first swing shaft,
A second swing shaft that swings later than the first swing shaft, and a second swing shaft that is swingably provided in conjunction with the first swing shaft and that holds and holds the peripheral edge of the stacked mold trays. A holding lever having a contact portion, and a swing lever provided so as to interlock with the first swing shaft,
A second swing shaft provided with a support lever having support claws for supporting the mold trays which are not held by the abutting portions of the lowermost mold tray and the mold trays of the next and higher stages, and the stacked mold trays. A pedestal lever that moves away from the mold tray in conjunction with the movement, and an arcuate guide portion that is swingably provided in conjunction with the second swing shaft and that contacts the lowermost mold tray supported by the support pawls. A peeling lever having a peeling claw for peeling off the lowermost mold tray subsequent to the guide part, and in a state where the stacked mold trays are suspended and supported by the supporting claw and the abutting part,
The pedestal lever is moved away from the mold tray, and the lowermost mold tray is pushed down and peeled by the peeling claw.

The invention according to claim 2 of the present application is, in the structure according to claim 1, an elastic body in which the abutment portion of the holding lever has unevenness for engaging the peripheral portion of the mold tray on its surface. This elastic body holds a plurality of mold trays several stages above the bottom mold tray.

According to a third aspect of the present invention, in the structure according to the first aspect, a temporary support portion is provided at a lower portion of the support claw of the support lever via a groove, and the temporary support portion is provided. The part is extended to a size that can absorb the deformation of the peripheral part of the mold tray, and through this temporary support part, the above-mentioned groove is fitted to the mold tray at the bottom stage and at the same time the mold tray at the next stage is placed on the support claw. It is characterized by being configured.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A peeling apparatus equipped with a chicken egg mold tray peeling mechanism according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a peeling apparatus equipped with the mechanism of the present invention, FIG. 2 is a side view of a drive section of the apparatus, FIG. 3 is a partially omitted plan view of the apparatus, and FIGS. 4 to 7 are enlarged side views of main parts. 8 and 12 are explanatory views showing the operation process of the mechanism of the present invention.

As shown in FIGS. 1 to 3, the first linear motion cam 1 has two guide rails 2a and 2 which are vertically provided in parallel.
It is slidably fitted vertically along b, and a cam roller 1a is rotatably attached to the center of its top. Further, a disc-shaped rotary cam 3 connected to a pulley 4a of a motor 4 via a drive belt 5 is arranged in parallel with the first linear cam 1, and the linear cam 1 is attached to the rotary cam 3. Cam roller 1a is circumferentially contacted. When the rotary cam 3 is rotated by the drive of the motor 4, the cam roller 1a rotates following the peripheral edge of the rotary cam 3 and the cam surface 3a formed by cutting out a part of the rotary cam 3, and accordingly the first linear motion. The cam 1 repeatedly moves up and down. In FIG. 2, reference numeral 20 is a limit switch for detecting the downward movement of the first linear motion cam 1.

Below the first linear motion cam 1, a second linear motion cam 6 which is similarly slidably fitted on the guide rails 2a and 2b is attached. The second linear motion cam 6 is connected to the rotary cam 3 via a rod-shaped connecting rod 7, and the connecting shafts 7a and 7b of the second linear cam 6 are freely rotatable. 2 direct acting cam 6
Also moves up and down repeatedly.

Protruding portions having cam surfaces 1b are provided on both sides of the lower end of the first linear cam 1, and in the vicinity thereof, a first swing shaft 9 which is swingably held by a bearing 8 is provided. Is provided. Then, the cam surface 1 of the first linear motion cam 1
By integrally fixing and connecting the lever 10 having the cam roller 10a sliding on b to the tip end of the first swing shaft 9, the first swing motion of the first linear motion cam 1 is caused by the first swing motion. Axis 9
Repeatedly swings left and right.

Cam grooves 6a are formed on both sides of the second linear cam 6.
Is formed, and in the vicinity thereof, a second swing shaft 12 provided directly below and in parallel with the first swing shaft 9 is provided with the bearing 11
It is swingably held by. Then, the lever 13 having the cam roller 13a that slides on the cam groove 6a of the second direct-acting cam 6 is integrally fixed and connected to the tip end of the second swing shaft 12 to form the second direct-acting cam. With the vertical movement of 6, the second swing shaft 12 repeatedly swings left and right. Reference numeral 14 is a spring for urging the cam roller 13a in the direction of drawing it into the cam groove 6a.

In the longitudinal direction of the first swing shaft 9, when the lowermost mold tray 15 of the stacked mold trays 15 is peeled off, the peripheral edge of the stacked mold trays 15 is pressed and held. The holding lever 16 for holding, the lowermost mold tray 15, and the supporting lever 17 for supporting the mold tray 15 not held by the holding lever in the mold trays 15 in the next stage and above are fixed at arbitrary intervals. As shown in FIG. 4, the holding lever 16 swingably supports a contact portion 16a having a T-shape in a side view at its tip portion, and an upper portion of the contact portion 16a is a buffer spring 1 supported by the holding lever 16.
The inclination is maintained at a predetermined angle by a stopper 16c which is urged downward by 6b and is composed of an adjusting screw supported by a holding lever 16. The inclination of the contact portion 16a at all times can be arbitrarily changed and adjusted by changing the protrusion amount of the stopper 16c. On the surface of the contact portion 16a,
An uneven elastic body 16d is provided, and the unevenness of the elastic body 16d simultaneously presses and holds a plurality of mold trays 15, and the elastic body 16d has the strength to hold and hold several tens of mold trays 15. . On the other hand, the support lever 1
As shown in FIG. 5, 7 supports a moving body 17a at its tip, a supporting claw 17b at the tip of the moving body 17a, and a temporary support 17d via a groove 17c in the lower part of the supporting claw 17b.
And have. Here, the temporary support portion 17d is extended to a size that absorbs the deformation of the peripheral portion of the mold tray 15, and the groove 17c is fitted to the lowermost mold tray 15 through the temporary support portion 17d, and at the same time, the mold of the next stage is molded. The tray 15 is designed to be placed on the support claw 17b. The movable body 17a is supported by the guide lever 17e and the spring adjustment bolt 17f so as to be movable in the length direction with respect to the support lever 17, and the length from the first swing shaft 9 to the support pawl 17b can be adjusted. There is. At the rear end of the support claw 17b,
Weight 17g is provided, and weight 17g
The stopper 17h of the above corresponds to the back of the moving body 17a, and the support claw 17b is held in a substantially horizontal position. In addition, the support lever 17 and the holding lever 16 are symmetrically arranged.

Further, four peeling levers 18 and a pedestal lever 19 are also provided at arbitrary intervals in the longitudinal direction of the second swing shaft 12.
And are fixed respectively. The peeling lever 18 is shown in FIG.
As shown in FIG. 5, an arcuate guide portion 18b and a peeling claw 18c integrally provided with the guide portion 18b are swingably supported on the upper end portion thereof via a support pin 18a. A weight 18d is provided at the rear end of the peeling claw 18c, and the weight 18d keeps the peeling claw 18c and the guide portion 18b in an upward posture at all times. Weight 1
8d is provided with a stopper 18e which is an adjustment bolt, and the length of the stopper 18e is adjusted to adjust the guide portion 18e.
It is possible to adjust that b is directed upward more than necessary. On the other hand, as shown in FIG. 7, the pedestal lever 19 is for mounting the mold trays 15 that are stacked in the initial state.
When stripped off, it swings downward and operates so as not to hinder the fall. Further, the peeling lever 18 and the pedestal lever 19 are symmetrically arranged as shown in FIG.

Next, the operation of this embodiment will be described with reference to FIGS. First, in the initial state of operation shown in FIG. 8, the stacked mold trays 15 are mounted and mounted on the pedestal lever 19 fixed to the second swing shaft 12 (see the solid line in FIG. 7). . At that time, the support lever 17 fixed to the first swing shaft 9 is located in the hanging position, and the support claw 17b is in a substantially horizontal position with its stopper 17h hitting the back part of the moving body 17a by the weight of the weight 17g. It is held and is located away from the mold tray 15 (see the solid line in FIG. 5). Further, the holding lever 16 fixed to the first swing shaft 9 is in a standby state with its abutting portion 16a separated from the mold tray 15 (see the solid line in FIG. 4). Further, the peeling lever 18 fixed to the second swing shaft 12 has its arcuate guide portion 18b in contact with the lowermost mold tray 15, and the peeling claw 18e is located away from the lowermost mold tray 15. (See the solid line in FIG. 6).

Next, when the rotary cam 3 is rotated by driving the motor 4, the cam roller 1a of the first direct acting cam 1 is rotated following the cam surface of the rotary cam 3, and the first direct acting cam 1 is moved.
Only movable. Therefore, as shown in FIG. 9, initially,
Only the first swing shaft 9 swings to swing the support lever 17 inward, the peripheral ribs of the lowermost mold tray 15 fit into the concave grooves 17c of the support pawls 17b, and the support pawls 17b directly above.
The peripheral tray ribs of the next-stage mold tray are supported on the upper tray (see the phantom line in FIG. 5). At this time, the support claw 17b swings and stops so that the stopper 17g of the support claw 17b hits the back portion of the moving body 17a. Further, the holding lever 16 also swings inward by the swing of the first swing shaft 9, and its abutting portion 16a comes into contact with the peripheral end portion of the mold tray 15 of the fourth to seventh stages, and the buffer spring. By the action of 16b and the stopper 16c, it comes into close contact with the end of the mold tray 16 and
It holds the mold trays 15 at the upper level and above (see the phantom line in FIG. 4). The pedestal lever 19 still receives the laminated mold tray 15 in the horizontal direction, and the peeling lever 18 is still in a standby state.

As shown in FIG. 10, when the rotation of the rotary cam 3 progresses, the second linear cam 6 also moves downward in conjunction with the connecting rod 7, and the second swing shaft 12 swings. This allows the pedestal lever 1
9 swings downward, and the pedestal lever 19 opens. At this time, the support lever 17 supports the lowermost mold tray 15, the next mold tray 15 and the third mold tray 15 while maintaining the state of FIG.
The abutting portion 16a holds the mold tray 15 of the fourth stage or more. Further, the peeling lever 18 also swings downward due to the swing of the second swing shaft 12, the peeling claw 18c bites into one end surface of the lowermost mold tray 15, and the lowermost mold tray 15 moves to the next stage. Start peeling from the mold tray 15.

Then, as the rotary cam 3 further rotates, as shown in FIG. 11, the lowermost mold tray 15 is pushed down and peeled by the peeling claw 18c (see the phantom line in FIG. 6). At this time, the support claws 17b are the mold tray 15 of the next stage and the mold tray 15 of the third stage.
Thus, only the lowermost mold tray 15 can be detached against the supporting force of the temporary supporting portion 17d. Further, the contact portion 16a of the holding lever 16 holds the mold tray 15 of the fourth step or more.

As shown in FIG. 12, when the rotary cam 3 further rotates, the pedestal lever 19 completely faces downward, and the mold tray 15 at the bottom is naturally dropped (see the phantom line in FIG. 7). At this time, the support claw 17b and the contact portion 16a of the holding lever 16 are respectively in the next stage and the third stage as in the case of FIG.
The stage and the fourth stage and above will be shared and supported.

After that, when the rotation of the rotary cam 3 further progresses, the pedestal lever 19 returns to the initial state of FIG.
7, the holding lever 16 and the peeling lever 18 also return to the initial state of FIG. After that, the above-described operation is repeated, and the stacked mold trays 15 are sequentially peeled off one by one from the lowermost stage.

In the embodiment described above, the holding lever 16
Since the elastic body 16d having the unevenness that engages with the peripheral ribs of the mold tray 15 is provided on the surface of the contact portion 16a of the, the uneven portion of the elastic body 16d is provided with a plurality of steps which are several steps higher than the lowermost mold tray. The mold tray 15 can be reliably held, and a cushioning action is given when the peripheral ribs of the mold tray 15 hit to prevent the mold tray 15 from being damaged.

A lower portion of the support claw 17b of the support lever 17 has a temporary support portion 17d via a groove 17c, and the temporary support portion 17d is extended to a size capable of absorbing the deformation of the peripheral rib of the mold tray 15. Then, the concave groove 17c is fitted to the lowermost mold tray 15 through the temporary supporting portion 17d, and at the same time, the next mold tray 15 is supported by the supporting claws 17.
Since it is configured to be placed on b, the lowermost mold tray 15 and the mold trays of the next and higher stages are more effectively supported by the support lever 17 by the guide action of the temporary support portion 17d and the concave groove 17c. be able to.

Furthermore, the inclination of the contact portion 16a of the holding lever 16 can be adjusted, and the projecting length of the movable body 17a of the support lever 17 can be adjusted.
Further, since the upward posture of the guide portion 18b of the peeling lever 18 can be adjusted, the mold tray 15 to be used
Even if there is some variation in the dimensions of the above, it is possible to easily cope with the above by appropriately adjusting the inclination, the protruding length or the upward posture of each lever according to the dimension of the mold tray 15 to be used, so that a smooth peeling operation can be performed. Can be done.

In the above embodiment, the support claw 1
7b supports the next stage and the third stage. For example, the support claw 17b supports the next stage to the fourth stage, and the contact portion 16a.
Needless to say, the respective divisions may be appropriately changed so as to support the fifth stage and above.

[0026]

As described above, according to the present invention, first, the support lever and the holding lever swing due to the swing of the first swing shaft, and the supporting claw of the support lever and the contact portion of the holding lever. And holds the stacked mold trays, and then the pedestal lever and the peeling lever oscillate due to the oscillating second swing shaft, and the pedestal lever separates from the mold tray.
Since the peeling claw with the arc-shaped guide part of the peeling lever is configured to push down the mold tray at the lowermost stage for peeling, the stacked mold trays are shared by the supporting claws and the abutting part and securely held. It is said that the peeling claws can be accurately peeled one by one through the arc-shaped guide part and can be supplied to the egg selector, and the mechanization of the peeling work can be achieved with high accuracy, and the labor can be saved. It has an excellent effect.

Further, the abutting portion of the holding lever is provided with an elastic body having unevenness for engaging with the peripheral portion of the mold tray on its surface, and holds the mold tray several stages from the lowermost mold tray. By doing so, it is possible to reliably hold several mold trays above the lowest mold tray by the uneven portion of the elastic body, and to give a cushioning action when the peripheral ribs of the mold tray hit the mold tray. Does not hurt.

Further, the lower part of the support claw of the support lever has a temporary support part through a groove, and the temporary support part is extended to a size capable of absorbing the deformation of the peripheral part of the mold tray. If the above-mentioned concave groove is fitted to the lowermost mold tray via the above, and the next-stage mold tray is placed on the supporting claw at the same time, the lowermost mold by the supporting lever by the guide function of the temporary supporting portion and the concave groove. It is possible to more effectively support the tray and the mold tray of the next stage and above.

[Brief description of drawings]

FIG. 1 is a front view of a peeling device including a mechanism of the present invention.

FIG. 2 is a side view of a drive unit of the apparatus.

FIG. 3 is a partially omitted plan view of the same device.

FIG. 4 is an enlarged side view of a holding lever in the mechanism of the present invention.

FIG. 5 is an enlarged side view of a support lever in the mechanism of the present invention.

FIG. 6 is an enlarged side view of the peeling lever in the mechanism of the present invention.

FIG. 7 is an enlarged side view of a cradle lever in the mechanism of the present invention.

FIG. 8 is an explanatory diagram showing an operation process of the device of the present invention.

FIG. 9 is an explanatory view showing an operation process of the device of the present invention.

FIG. 10 is an explanatory diagram showing an operation process of the device of the present invention.

FIG. 11 is an explanatory diagram showing an operation process of the device of the present invention.

FIG. 12 is an explanatory view showing an operation process of the device of the present invention.

[Explanation of symbols]

1st linear motion cam 1a Cam roller 1b Cam surface of first linear motion cam 1c convex piece 2a Guide rail 2b guide rail 3 rotating cams 4 motor 4a pulley 5 drive belt 6 Second linear motion cam 6a Cam groove of second linear motion cam 7 Connection rod 7a Connection shaft 7b Connection shaft 8 bearings 9 First swing shaft 10 levers 10a cam roller 11 bearings 12 Second swing shaft 13 lever 13a cam roller 14 spring 15 Mold tray 16 Holding lever 16a contact part 16b buffer spring 16c stopper 16d elastic body 17 Support lever 17a moving body 17b Supporting claw 17c groove 17d Temporary support part 17e Guide bolt 17f Spring adjustment bolt 17g weight 17h stopper 18 Peeling lever 18a Support pin 18b Arc-shaped guide part 18c peeling claw 18d weight 18e stopper 19 Cradle lever 20 limit switch

Claims (3)

[Claims] 1. A first swing shaft, a second swing shaft that swings behind the first swing shaft, and a second swing shaft that is swingable in association with the first swing shaft and is laminated. Holding lever having an abutting portion for pressing and holding the peripheral edge of the formed mold tray, and a swing tray provided in association with the first swing shaft, the lowermost mold tray and the mold tray of the next stage and above. And a support lever having a support claw for supporting the mold tray not held by the abutting portion, and a pedestal lever provided so as to be able to receive the stacked mold trays and separated from the mold trays in conjunction with the second swing shaft. And an arcuate guide portion that is swingably provided in conjunction with the second swing shaft and is in contact with the lowermost mold tray supported by the supporting claws, and the lowermost mold tray is peeled off after the guide portion. With a peeling lever having a peeling claw to be laminated In a state where the mold tray is suspended and supported by the support claw and the contact portion, the receiving lever is moved away from the mold tray, and the lowermost mold tray is pushed down and peeled by the peeling claw for peeling. Mold tray peeling mechanism. 2. An abutment portion of the holding lever is provided with an elastic body having irregularities on its surface that engages with the peripheral edge portion of the mold tray, and by this elastic body, a plurality of mold trays are provided several steps above the bottommost mold tray. The mold tray peeling mechanism for eggs according to claim 1, characterized in that it holds the mold tray. 3. A temporary support portion is provided at a lower portion of a support claw of the support lever via a groove, and the temporary support portion is extended to a size capable of absorbing deformation of a peripheral portion of the mold tray. The chicken egg mold tray peeling mechanism according to claim 1, wherein the concave groove is fitted to the lowermost mold tray via and the second mold tray is placed on the supporting claw at the same time.