JPS6359752B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for continuously and automatically sorting marine products, agricultural products, various industrial products, etc. into preset weight ranks.

Conventionally, weight sorting of the objects to be weighed (objects to be weighed) as described above has been carried out using so-called auto-checkers, but this is due to the high cost of the equipment and the nature of the objects to be weighed. However, there were problems in that it could not be used in many cases.

This invention aims to provide an inexpensive weight sorting device that is comparable in performance and efficiency to conventional devices and is relatively unaffected by the properties of the objects to be weighed.
An endless chain 11 wound around a plurality of sprockets 33, 33, a rail section 12 formed along the chain 11, and a traveling platform 13 attached to the chain 11 and running on the rail section 12.
, a swinging arm 17 whose base end is pivotally supported on the running base 13 so that the tip protrudes to the side of the running base 13 and swings up and down; A weight arm 21 whose base end is attached to the base end of the swing arm 17 is provided so as to protrude to the other side of the traveling base 13 in the opposite direction to the swing end of the swing arm 17. A bucket 18 for placing an object to be weighed is pivotally attached to the side, and a swinging arm 17 and a weight arm are attached to the swinging end of the weight arm 21 by weight balance with the object to be weighed placed on the bucket 18. A balance weight 22 is attached to the side of the rail section 12 below the weight arm 21 to determine the swinging posture of the weight arm 21.
As the traveling table 13 moves, the weight arm 21
an inclined guide 2 that sequentially stands up and swings as a guide to a neutral position where the reference weight of the object to be weighed is balanced against the balance weight 22;
3, and at a side position of the rail part 12 where the swinging arm 17 falls down to the side when the weight of the object to be weighed in the bucket 18 exceeds the reference weight, a bucket cart supported by the swinging arm 17 that has fallen down is provided. It is characterized by being provided with a take-out mechanism for taking out 18 objects to be weighed.

Figures 1 to 3 are explanatory diagrams of the operating principle of the sorting device of the present invention.
In opq, points p and q rotate in the left-right direction around a fulcrum o, and a balance weight 1 of mass Ag is fixedly attached to point p, and a weight of mass Bg is attached to the other point q. The object to be measured 2 is suspended.
Let the center of gravity positions of the balance weight 1 and the object to be measured 2 that change on the horizontal base line 3 passing through the fulcrum o be a and b, respectively, and now in the state shown in Fig. 1, Ag×ao ………(1) Bg× bo It is assumed that the rotational torques acting on the fulcrum o expressed by each equation (2) are equally balanced.

Therefore, as shown in Figure 2, balance weight 1
Gradually lift upward, Ag×ao＜Bg×
bo, the rotational torque caused by arm oq becomes larger than the rotational torque caused by arm OP, and the above balance is disrupted, △opq rotates clockwise, and the object to be weighed 2 falls downward as shown in Figure 3. Become.

Next, we will discuss how to apply the above operating principle to a weight sorting device.
When point p stops at a predetermined point on the circumference of the circle op (for example, in the state shown in Figure 2), Ag×
Ag and Bg are set so that they are balanced as ao = Bg x bo, and balance weight 1 is set as the first
When moving from the state shown in the figure to the state shown in Fig. 2, if the object to be measured 2 exceeds the set value of Bg, △opq
further rotates clockwise, reaching the state shown in FIG. On the contrary, B
If g does not reach the set weight, △opq is the second
It does not rotate beyond the state shown in the figure and remains as it is.

In other words, since the lifting height of the object to be weighed 2 is completely different depending on whether it exceeds the set value of Bg, the above distribution operation is performed while the △opq itself, which is to serve as the balance, is traveling horizontally on one running track. In this case, processing devices (such as removal and sorting from a hanging container) corresponding to two or more heights of the object to be weighed 2 may be provided at different positions on the travel trajectory.

The embodiments of the apparatus of the present invention shown in FIGS. 4 to 7 will be described in detail below. FIG. 4 is a perspective view of the main parts showing the structure of the distribution section of the apparatus. The laid rail portion 12 constitutes a straight running track, and the rail portion 12 has a running platform 1 consisting of a bogie that runs on the rail portion.
3 is provided, and this traveling platform 13 is connected to the chain 11 at its side surface and is caused to travel together with the drive of the chain 11.

A bracket 14 is protruded from the center of the front end and the rear end of the traveling base 13, and the rear end of a plate-shaped or rod-shaped rotating portion 15 is rotatably supported on the bracket 14 by a shaft 16. Swing arms 17, 17 are provided at the front and rear ends of the rotating section 15, respectively, to swing left and right as the rotating section 15 rotates. The bucket bag 18 is rotatably pivoted to the front and rear walls of the bucket bag 18 by shafts 19, 19, and the bucket bag 18 is supported in a suspended state by the swing arms 17, 17.

A bracket 20 is provided protrudingly on the rotating part 15,
A weight arm 21 projects sideways from the side surface across the chain 11, and a balance weight 22 made of a roller-shaped metal or the like is rotatably attached to the tip of the weight arm 21. . And the left side (inside) of chain 11
In parallel to the chain 11, there is a rail-shaped inclined guide 2 rising at a gentle slope toward the front.
3 is installed, and when the traveling table 13 moves forward by the drive of the chain 11, the balance weight 22 contacts and rolls on the inclined guide 23, swinging the weight arm 21 and the swinging arm 17 to the right. By holding the bucket 18 in that position, it can be moved to the right side (chain 11) while being suspended.
It is a mechanism that is lifted out to the outside of the building.

FIG. 5 is a rear sectional view of the main parts showing the structure and operating state of the distribution section, in which the left weight arm 21 and the swinging arm 17 swing in the range from the state shown by the solid line to the state shown by the imaginary line. However, in the state shown by the imaginary lines in the drawing, the bucket 18 is in a state in which the objects to be weighed (sorted) inside can be taken out. Each arm 17 therefore pivots about an axis 16,
21 is a balance weight 2 within the swing range shown in the figure.
2, the bucket 18, and the object to be weighed have a neutral point of weight (a position where the weights of both should be balanced).

Next, the mechanism for taking out the object to be weighed housed in the bucket 18 in the state shown in the above imaginary line will be explained based on FIGS. 5 and 6. The rear end has a structure that can be opened and closed, and the rear end is normally closed by being locked by a clamper 27 consisting of a hook or hook-shaped claw attached to the rear side of the bucket bag 18. The upper end of the clamper 27 is swingably supported by a bracket 28 attached to the rear surface of the bucket 18 and a shaft 29 installed horizontally on the bracket, and the lower end can be attached to and detached from the rear end of the bottom plate 25. It has a structure that locks into.

Further, a downward lever 30 is provided at the right end (outer end) of the shaft 29 so as to rotate together with the shaft 29 and the clamper 28 . The lower end is constantly pulled forward by a spring (not shown) or a coil spring 31 stretched between the lever 30 and the bucket 18, and the closure clamp of the bottom plate 25 is held by these springs. .

FIG. 7 is a perspective view showing the operating base of the device of the present invention, with the base 3 mounted on a rectangular frame.
There is an endless chain 11 in the center of the front and back on 2.
The sprockets 33, 33 around which the chain is wound are supported substantially horizontally, and a rail portion 12 is provided around the outer periphery of the chain 11, following the shape of the chain.
Furthermore, there is a balance weight 2 inside the chain 11.
An inclined guide 23 for receiving 2 is provided in an oval shape along the chain winding shape, and this inclined guide 2
3 forms an inclined surface that rises in the direction of travel in the left and right straight parts, and becomes lower at the end of the straight part.

Further, a stopper guide 34 of the balance weight 22 is disposed above and outside the inclined guide 23 so as to be substantially parallel to the inclined guide 23.
34 is provided, and each stopper guide 34 is provided with a fifth stopper guide 34.
As shown in the figure, when the swing arm 17 is rolled outward, the balance weight 22 is brought into contact with the balance weight 22 in a rollable state to stop the swing and maintain the movable state of the distribution section.

A bucket guide is provided on the outside of the linear traveling portion of the rail portion 12 in parallel with the rail portion 12 via a space portion (object retrieval portion) 35 having a width that accommodates the bottom of the bucket 18 when the swing arm 17 rolls over. 36 is attached, and this bucket tote guide 36 guides the bucket tot, which is suspended from the swinging guide 17 which has been rolled over on its side, to run stably. On the inner surface of the bucket guide 36, a plurality of protrusions 37, 37a to 37c made of bolts or the like for releasing the clamp are protruded at predetermined intervals in a plurality of stages.
Bucket 1 passing through space 35 in either c.
The lever 30 of No. 8 abuts to release the clamp of the bottom plate 25 by the clamper 27, and the bottom plate 25 is opened by the weight of the object to be weighed (see FIGS. 6A to 6C).

For example, when the weight of the object to be weighed in the bucket 18 is in the largest class, the swinging arm 17 tilts outward before the balance weight 22 rolls into contact with the inclined surface of the inclined guide 23 due to the weight on the bucket 18 side. Then, the bottom plate 25 is opened at the first opening position _A1 by the first stage projection 37a. On the other hand, when the weight of the object to be weighed is small, the bucket 18 side loses the weight balance to the balance weight 22 side, so the swinging arm 17 runs in a non-lodging state, and as it moves forward, the tilted guide 23 Since the bottom plate 2 of the bucket 18 is tilted outward depending on the stage, the protrusion 37b or 37c
5 is opened, and the object to be weighed is opened and dropped at the second or third stage opening position A ₂ or A ₃ .

Bucket 18 with bottom plate 25 opened as described above
There is a bucket 18 on the curve in front of the direction of travel.
A rail-shaped push-up gauge 38 is provided which forms a gentle upward curve so as to successively contact the center of the bottom of the bucket and push up the bottom plate 25 as the bucket advances, and the bottom plate 25 is closed by this gauge 38. When the bottom plate 25 is closed, the lower end of the clamper 27, which has been pulled forward by the spring 31, is rotated backward to completely close the bottom plate 25, and after the bottom plate 25 is closed, the clamper 27 is returned again to clamp it. In order to do this, a clamping protrusion 39 is provided on the outside near the terminal end of the gauge 38 and protrudes above the base 33.

That is, just before the bottom plate 25 is closed, the protrusion 39 hits the lever 30 and rotates the clamper 31 backward, and after the bottom plate 25 is completely closed by the gauge 38, it returns again and automatically clamps. It is something. At this point, the bucket 18 loses its balance with the balance weight 22 and returns to the state before loading due to the weight of the balance weight 22 (see the solid line in Figures 4 and 5), waiting for the next loading. I am in a position to do so.

In the example shown in FIG. 7, both the left and right linear running lines are used as distribution operating parts, so the various mechanisms for opening and closing the bottom plate 25 are provided at rotationally symmetrical positions on the left and right sides of the base, and the mechanisms for opening and closing the bottom plate 25 are provided at rotationally symmetrical positions on the left and right sides of the base, and the mechanisms for opening and closing the bottom plate 25 are provided at rotationally symmetrical positions on the left and right sides of the base, and the mechanisms for opening and closing the bottom plate 25 are installed at rotationally symmetrical positions on the left and right sides of the base. The object to be weighed is inserted near the front and rear ends of the base 33.

The apparatus of the present invention constructed as described above and FIGS.
The correspondence with the principle diagram in Figure 3 is that △opq is axis 1
6. Center of gravity position of balance weight 22 and axis 19
The state in FIG. 1 corresponds to the state shown by the solid line in FIG. 5, and the state shown in FIG. 3 corresponds to the state shown by the imaginary line in FIG.

As a result of the above-described structure, the present invention is capable of continuously and automatically measuring a large amount of various industrial products, agricultural and marine products, etc. (for example, fresh fish) for each fixed weight rank, regardless of the properties of the objects to be weighed. Furthermore, since all sorting is done by simple mechanical operations, there are fewer failures of the equipment and equipment costs are low.

[Brief explanation of the drawing]

Figures 1 to 3 are both explanatory diagrams of the principle of the device of the present invention, Figure 4 is a perspective view of the distribution section which is the main part of the device of the invention, and Figure 5 is the main part showing the operating state. A front view, FIGS. 6A to 6D are side views similarly showing the operating state, and FIG. 7 is a perspective view showing the operating base of the device of the present invention. 11: Chain, 12: Rail part, 13: Running base, 14: Bracket, 15: Rotating part, 16:
Axis, 17: Swing arm, 18: Bucket, 19:
Axis, 20: Bracket, 21: Weight arm,
22: Balance weight, 23: Incline guide, 2
5: Bottom plate, 26: Hinge, 27: Clamper, 2
8: Bracket, 29: Shaft, 30: Lever, 3
1: Coil spring, 32: Base, 33: Sprocket, 34: Stopper guide, 35: Space part (weighed object removal part), 36: Bucket guide, 37:
Projection, 38: Push-up gauge, 39: Projection.

Claims (1)

[Claims] 1. An endless chain 11 wound around a plurality of sprockets 33, 33, a rail portion 12 formed along the chain 11, and the chain 11
A running platform 1 that is attached to and runs on a rail section 12
3, a swing arm 17 whose base end is pivotally supported on the run base 13 so that the tip protrudes to the side of the run base 13 and swings up and down, and a swing arm that swings together with the swing arm 17. The base end is attached to the swing arm 17 so as to protrude to the other side of the carriage 13 in the opposite direction to the swing arm 17.
A bucket 18 for placing an object to be weighed is pivotally attached to the swinging end side of the swinging arm 17, and a weight arm 21 is attached to the swinging end of the weight arm 21. A balance weight 22 is attached to the side of the rail section 12 below the weight arm 21, which determines the swing posture of the swing arm 17 and the weight arm 21 by the weight balance with the object to be weighed placed on the bucket 18. for,
As the traveling table 13 moves, the weight arm 21
an inclined guide 2 that sequentially stands up and swings as a guide to a neutral position where the reference weight of the object to be weighed is balanced against the balance weight 22;
3, and at a side position of the rail part 12 where the swinging arm 17 falls down to the side when the weight of the object to be weighed in the bucket 18 exceeds the reference weight, a bucket cart supported by the swinging arm 17 that has fallen down is provided. A weight sorting device equipped with a take-out mechanism for taking out 18 objects to be weighed.