JP2545052B2 - Dispersion supply method and dispersion supply device for objects to be weighed in combination weighing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispersion supply method and a dispersion supply device for objects to be weighed in a combination weighing device which performs combination weighing using a plurality of weighing machines.

[0002]

2. Description of the Related Art An object to be weighed is supplied to a plurality of weighing machines arranged in a circle, and a combination calculation is performed based on the measured values of the respective weighing machines. Alternatively, an optimum combination having a value closest to the weight is selected, and only the objects to be weighed in the weighing machine corresponding to the optimum combination are discharged to obtain the objects to be weighed having the target weight or a weight close to the target weight. The combined weighing device described above has been put to practical use.

As a device for supplying the objects to be weighed to a plurality of circularly arranged weighing machines in this type of combination weighing device, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 59-122523. . This is to arrange a conical dispersion table for receiving the objects to be weighed dropped from above in the center of the weighing machines arranged in a circle, and to arrange the same number of troughs as the above weighing machines around the dispersion table. The objects to be weighed are dispersedly supplied to corresponding weighing machines (or pool hoppers provided corresponding to the weighing machines) via the respective troughs.

[0004]

By the way, when the objects to be weighed are distributed and supplied to the respective weighing machines in the combination weighing device as described above, it is necessary to accurately and evenly supply the objects to be weighed to the respective weighing machines. It is important for performing combination weighing.
However, when the objects to be weighed have a shape such as “sprouts” which are easily entangled with each other, it is difficult to disperse them satisfactorily. The articles are supplied or the articles are not supplied to other weighing machines at all, and the accuracy of the combination weighing decreases, and in a significant case, the weighing cannot be performed.

The present invention addresses the above-described problems in a combination weighing device, and an object thereof is to appropriately disperse easily entangled articles such as "sprouts" and supply them to the weighing machine. .

[0006]

That is, the method for dispersing and supplying the objects to be weighed in the combination weighing device according to the invention of claim 1 (hereinafter referred to as the first invention) of the present application is such that
By passing between the loosening members that move up and down
While unraveling the object to be weighed, drop it on the umbrella and
Reciprocate the umbrella-shaped body of the
Transfer to the outer peripheral edge while rocking, and radiate around the umbrella-shaped body.
On top of several troughs placed in
The trough is vibrated in the longitudinal direction to move the object to be measured in the radial direction.
It is separated in the transport direction by transferring outward and supplying to the weighing machine.

The invention of claim 2 of the present application (hereinafter, referred to as the second
The dispersion feeding device for the objects to be weighed in the combination weighing device according to the invention) has a cylindrical body having upper and lower ends opened and a plurality of loosening bars projecting inward, and the cylindrical body. First driving means for reciprocating in the vertical direction and a plurality of valleys and ridges arranged below the tubular body and descending in an inclined manner toward the outer peripheral direction on the upper surface side are alternately provided. Umbrella-shaped body, second driving means for reciprocating the umbrella-shaped body around an axis, a plurality of troughs radially arranged around the umbrella-shaped body, and vibrating these troughs in the longitudinal direction, respectively. And a vibrating means for controlling the vibration.

[0008]

First, according to the dispersion supply method according to the first aspect of the invention, in the process in which the object to be weighed moves toward the weighing machine,
Since it is shaken in each of the three directions of left and right and front and back, the intertwined objects to be weighed are effectively separated and supplied to the weighing machine. Moreover, it rocks up and down
The loosened part moves up and down when separated and separated.
Unraveled by passing through the lumber
It will be dropped onto the umbrella. This makes that
Reciprocating movement about the axis of the umbrella and the trough length
Separation by vibration in the hand direction is more effectively demonstrated
Supplied to some weighing machines in a tangled state
Supplied to the weighing machine in an evenly distributed state without
Will be done .

Further, according to the dispersion supply apparatus of the second aspect of the present invention, the objects to be weighed dropped from above are first unraveled by the unraveling rod provided in the cylindrical body which reciprocates in the vertical direction, and then the downward objects It drops onto the umbrella-shaped body, flows down while oscillating in the circumferential direction along the upper surface of the umbrella-shaped body, and is delivered to a trough that is vibrated and vibrated in the longitudinal direction. In this case, the above-mentioned bevel-shaped body because the ridge and valley portions are alternately provided, the objects to be weighed which have dropped onto the ridge is distributed into the left and right valleys separated in the course of flowing down It will be. And
In the process of moving on the trough, they are separated in the transfer direction and supplied to the weighing machine. Therefore, even if the objects to be weighed are easily entangled with each other, the objects to be weighed are supplied to each weighing machine in a state in which they are evenly dispersed without gathering in a dumpling shape.

[0010]

Embodiments of the present invention will be described below.

As shown in FIG. 1, an umbrella-shaped body 5 constituting a dispersion supply device 4 is mounted on a support base 3 provided at the center of a machine base 2 of a combination weighing device 1 via a vibrator 6. While being supported, a conical small-sized auxiliary dispersion table 7 is attached to the upper center of the umbrella-shaped body 5. As shown in FIG. 2, a plurality of supply troughs 9 ... 9 are radially arranged around the umbrella-shaped body 5 via vibrators 8 ... 8, respectively.

Around the support base 3 and the machine base 2, a plurality of pool hoppers 10 ... 10 are arranged in a circle below the tip of each of the supply troughs 9 ... Below the pool hoppers 10 ... 10 are arranged weighing hoppers 11 ... 11 which constitute a weighing machine. Below each of the weighing hoppers 11 ... 11, there is provided a collecting chute 12 which collects the objects to be weighed discharged from the hoppers 11 ... 11 and supplies them to a packaging device (not shown) arranged below. Has been.

On the other hand, at a position above the auxiliary dispersion table 7 attached to the upper portion of the umbrella-shaped body 5, a guide chute for guiding the object to be weighed dropped from above the table 7 or the umbrella-shaped body 5. 13 is arranged, and between the guide chute 13 and the auxiliary dispersion table 7, a cylindrical body 14 having upper and lower ends respectively opened is arranged.

As shown in FIGS. 3 and 4, the cylindrical body 14 is
Inside the container, four loosening bars 15 ... 15 having one end fixed to the cylindrical body 14 are arranged at substantially equal intervals in the circumferential direction in a state of protruding toward the central portion, and Tubular body 1
Brackets 16a, 16b having an L-shaped cross section are fixedly mounted on the pair of left and right flange portions 14a, 14b fixed in opposite positions on the outer side surface of No. 4 and extending in the vertical direction. First link member 1
One ends of 7, 17 are pivotally attached via pins 18, 18, respectively. The other ends of the link members 17, 17 are fixed to the connecting shafts 19 arranged in the transverse direction, and the intermediate portions thereof are arranged in the transverse direction in parallel with the connecting shafts 19. It is connected to the first support shaft 20. The support shaft 20 is rotatably supported by bearing members 21 and 21. Also, each of the above brackets 1
A short second link member 2 is provided vertically below 6a and 16b.
One ends of the second and second members 22 and 22 are pivotally mounted via pins 23 and 23, respectively, and opposite ends of the link members 22 and 22 are arranged in parallel vertically below the first support shaft 20. Each is fixed to the second support shaft 24. Also in this case, the second support shaft 24 has the above-mentioned bearing members 21, 2.
It is rotatably supported by 1.

On the other hand, a cam plate 27 is eccentrically attached to a power transmission shaft 26 rotatably supported by a bearing 25. The power transmission shaft 2 is attached to the cam plate 27.
An end portion of a connecting member 29 is rotatably attached to an eccentric shaft 28 fixed at a position offset with respect to the shaft center of 6, and the other end portion of the connecting member is connected to the connecting shaft. 19 is rotatably attached to the crank mechanism 3
Configures 0. Then, the sprocket 31 attached to the power transmission shaft 26 and the rotation shaft 32 of the motor 32.
A chain 34 is wound around the sprocket 33 attached to a.

Therefore, the rotational movement of the motor 32 transmitted to the power transmission shaft 26 via the chain 34 is converted into reciprocating movement by the cam plate 27, the eccentric shaft 28 and the connecting member 29 and transmitted to the connecting shaft 19. At the same time, this reciprocating motion is converted into a swinging motion of the first link members 17, 17 with the first support shaft 20 as a fulcrum, and is transmitted to the tubular body 14,
The first link members 17, 17 and the second link members 22, 2
The cylindrical body 14 vibrates in the vertical direction due to the joint movement with 2.

On the other hand, as shown in FIG. 2, the umbrella-shaped body 5 has, on its upper surface, valleys 5a ... 5a and ridges 5b. Has been. Then, as shown in FIG. 5, an upper base 36 that constitutes the vibration exciter 6 is fitted and attached to a support member 35 that is fixedly provided on the back surface side of the valleys 5a, 5a, and Lower base 37 fixed to the base 36 and the support base 3
38 are attached in a tilted state at equal intervals. Therefore, by driving the vibration exciter 6, the umbrella-shaped body 5 spirally reciprocates around the axis.

As shown in FIG. 2, each supply trough 9
One side wall 9a is provided with a horizontal piece 9b projecting laterally, is arranged so as to overlap the other side wall 9c of the adjacent supply trough 9, and these supply troughs 9 ... The tip portion of 9 is opened at a position corresponding to the pool hopper 10 arranged below.

Next, the operation of this embodiment will be described.

That is, as shown in FIG. 1, the objects to be weighed dropped from above the guide chute 13 are first loosened bars 15 ... 1 provided on the cylindrical upper body 14 that reciprocates in the vertical direction.
It is unraveled by 5, and falls on the auxiliary dispersion table 7 or the umbrella-shaped body 5 below. Then, it flows down along the upper surface of the umbrella-shaped body 5 while oscillating in the circumferential direction.
As shown in FIG. 5, the toner is transferred to the supply trough 9 that is vibrated and vibrated in the longitudinal direction. In that case, the ridge portion 5 is formed on the umbrella-shaped body 5.
5b and troughs 5a ... 5a are provided alternately, the object to be weighed which has fallen onto the ridge 5b is separated on the way down and is distributed to the left and right troughs 5a, 5a. Become. Then, in the process of moving on the supply trough 9, it is separated in the transfer direction and discharged to the pool hopper 10. Therefore, even if the objects to be weighed are easily entangled with each other, the objects to be weighed are supplied to the weighing hoppers 11 ...

[0021]

As described above, according to the distributed supply method of the first aspect of the present invention, the object to be weighed is shaken in three directions of up, down, left and right and front and back in the process of moving toward the weighing machine. Therefore, the entangled objects to be weighed are effectively separated and supplied to the weighing machine. Moreover, above
The object to be weighed moves up and down when it is rubbed down and separated.
Reliably loosen by passing between the loosening members
Then, it will be dropped onto the lower umbrella-shaped body. This
As a result, the reciprocating operation around the axis of the umbrella-shaped body, which is performed thereafter, is performed.
Motion and vibration in the longitudinal direction of the trough are more effective
In the state of being entangled in a lump in some weighing machines
Evenly distributed without being supplied as is
Will be supplied to the weighing machine.

Further, according to the dispersion supply apparatus according to the second invention, the objects to be weighed which have been dropped from above is first unwound by vertically loosened provided in the cylindrical body that reciprocates rod lower It drops onto the umbrella-shaped body, flows down while swinging in a circumferential direction along the upper surface of the umbrella-shaped body, and is transferred to a trough that is vibrated and vibrated in the longitudinal direction. In that case,
Since the above umbrella-like body and the ridge and valley portions are alternately provided, the objects to be weighed which have dropped onto the ridge will be distributed to the left and right valleys separated in the course of flow. And
In the process of moving on the trough, they are separated in the transfer direction and supplied to the weighing machine. Therefore, even if the objects to be weighed are easily entangled with each other, the objects to be weighed are supplied to each weighing machine in a state in which they are evenly dispersed without gathering in a dumpling shape.

[Brief description of drawings]

FIG. 1 is an overall weight cross-sectional view of a combination weighing device including a dispersion supply device according to an embodiment.

FIG. 2 is a partial plan view of the dispersion supply device,

FIG. 3 is a vertical cross-sectional view showing a structure of a tubular body and its periphery.

4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

FIG. 6 is an enlarged cross-sectional view showing a configuration of a supply trough and its periphery.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combination weighing device 5 Umbrella 5a Valley 5b Ridge 6 Exciter 8 Exciter 9 Supply trough 14 Cylindrical body 15 Unraveling rod 18 First link member 22 Second link member 32 Motor

Claims (2)

(57) [Claims] 1. An object to be weighed in a combination weighing device, wherein an object to be weighed dropped from above is dispersedly supplied to a plurality of weighing machines arranged in a circle around the weighing machines and combined weighing is performed by each weighing machine. Dispersion supply method, wherein the object to be weighed is
By passing it between the loosening members that move up and down.
While unraveling the object to be weighed, drop it on the umbrella and
Reciprocate the umbrella-shaped body of the
Transfer to the outer peripheral edge while rocking, and radiate around the umbrella-shaped body.
On top of several troughs placed in
The trough is vibrated in the longitudinal direction to move the object to be measured in the radial direction.
A method for dispersing and supplying an object to be weighed in a combination weighing device, wherein the weighed material is supplied to a weighing machine after being separated in a transfer direction by being transferred outward. 2. An object to be weighed in a combination weighing device, wherein the objects to be weighed dropped from above are distributed and supplied to a plurality of weighing machines arranged in a circle around them so that the respective weighing machines perform combination weighing. A dispersion supply device, a tubular body having upper and lower ends opened and a plurality of loosening bars projecting inward, and first moving means for vertically reciprocating the tubular body. An umbrella-shaped body that is disposed below the tubular body and has a plurality of valleys and ridges that are inclined downwardly toward the outer peripheral direction and that are alternately provided on the upper surface side; Second drive means for reciprocating around the center, a plurality of troughs radially arranged around the umbrella-shaped body, and vibrating means for vibrating these troughs in the longitudinal direction, respectively. Distributing and feeding device for objects to be weighed in a combination weighing device.