JPH0445054B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention combines various weighing signals of articles respectively stored in a plurality of article storage tanks, and calculates a weight equal to a predetermined weight from each of these combinations. The present invention relates to a combination weigher that selects a similar combination and discharges articles from article storage tanks constituting the selected combination, and particularly relates to a configuration for discharging articles from the article storage tanks.

[Prior art]

Conventionally, there is a technique for discharging articles from article storage tanks constituting a selected combination in a combination weigher, for example, as disclosed in Japanese Patent Application Laid-Open No. 125322/1983. In this system, the collection chute that collects the items discharged from the measuring tank is divided into two rooms by a partition wall, and the above-mentioned measuring tank is fixedly placed above the partition wall, and the items inside are divided into two rooms. Two article discharge ports are provided in these measuring tanks so that the product can be discharged, and two discharge gates are provided so that these discharge ports can be opened and closed. This opens the discharge gate on one side of the metering tank that originally formed the combination.
The process of discharging the article into one chamber, then opening the other discharge gate of the measuring tank forming the combination, and discharging the article into the other chamber is repeated.

[Problem that the invention seeks to solve]

However, with the above technology, when one discharge gate is opened and one chamber attempts to discharge articles, some of the articles collide with the opened discharge gate.
There was a problem in that there was a very high possibility that the reaction would cause the gas to be accidentally discharged into the other room. This problem can be solved by closing the two discharge gates so that the tips of these two gates completely contact the upper ends of the compartment walls, that is, by butting them together. , adjustment, maintenance, etc. have become difficult, and new problems have arisen in that even a very small gap can cause objects to get caught in or adhere to the gap.

[Means for solving problems]

A means for solving the above problems is to divide the collection chute into a plurality of rooms by partition walls, and to install an article storage tank having an article outlet at the bottom and a gate for opening and closing the article outlet. The article storage tank is tiltably supported above the section wall so that the article outlet is selectively directed toward the room on both sides of the section wall, and the article storage tank is selectively placed in the room on one side of the section wall. A driving device for tilting and opening the gate is provided in the article storage tank.

[Effect]

According to this means, by operating the drive device, the article storage tank can be tilted toward one room side and the gate can be opened. Further, by operating the drive device, the article storage tank can be tilted toward the other room side, and the gate can be opened. Therefore, the articles in the article storage tank can be discharged to any room.

〔Example〕

A first embodiment is shown in FIGS. 1 to 5. Fourth
In the figures and FIG. 5, reference numeral 2 denotes a collection chute, which has an almost inverted truncated cone shape, and a partition wall 3 passing through its center.
It is partitioned into a first room 4 and a second room 6 by. The first and second chambers 4, 6 both have semicircular supply ports 8, 10 at their upper portions, and discharge ports 12, 14 which do not communicate with each other at their lower portions.

A first extension 16 is formed outside the first chamber 4 near one end of the partition wall 3 and further projects outward and communicates with the second chamber 6. . 17 is a dividing wall between the first extension part 16 and the first room 4. Similarly, a second extension 18 is formed outside the second chamber 6 near the other end of the partition wall 3 and further projects outward and communicates with the first chamber 4. has been done. 19 is a dividing wall between the second extension part 18 and the second room 6.

Above the partition wall 17, a first extension part 16 and a first extension part 16 are provided.
Both of the chambers 4 are provided with auxiliary tanks 26a and 26b into which articles to be weighed can be discharged. Similarly,
Auxiliary tanks 26c and 26d are provided above the partition wall 19 to discharge articles to be weighed into both the second extension 18 and the second chamber 6.

The auxiliary tank 26a has an input port 28 at the top and a discharge port 30 at the bottom, as shown in FIG. The upper part of the weighing machine 26a is rotatably supported by a support body 34 that protrudes toward the partition wall 17 from a base 32 provided inside the partition wall 17. 36
is its rotation axis. The discharge port 30 is provided with a gate 38 that opens and closes it. 40 is a spring for closing the gate 38. Three arms 42, 44, and 46 are rotatably connected between the end of the gate 38 and the rotation shaft 36. Further, a roller 48 is provided at the joint between the arms 46 and 44, and this roller 48 moves within a regulating window 50 provided in the support body 34. On the side of the auxiliary tank 26a, a rod 52 of a three-position air cylinder 52 is rotatably connected to the base 32.
a is connected.

When the rod 52a is moved backward from the state shown in FIG. 3, the auxiliary tank 26a is tilted toward the first chamber 4 as shown in FIG. 1, and the gate 38 is opened.
Further, when the rod 52a moves forward from the state shown in FIG. 3, the auxiliary tank 26a tilts toward the first extension part 16 as shown in FIG. 2, and the gate 38 opens. The other auxiliary tanks 26b to 26d are similarly constructed and operate similarly.

Above the periphery of the first chamber 4, there is a first chamber 4.
Six weighing machines 54a to 54f for discharging articles to be weighed into the tank and weighing machines 54g and 54h for discharging articles to be weighed into auxiliary tanks 26a and 26b are arranged. These weighing machines 54a to 54h have one discharge gate 56, but are not inclined. Similarly, above the periphery of the second room 6, there are six weighing machines 58a to 58f that discharge the articles to be weighed into the second chamber and six weighing machines that discharge the articles to be weighed into the auxiliary tanks 26c and 26d. 58g and 58h are arranged. These weighing machines 58a to 58h also have one discharge gate 60, but are not inclined.

Although not shown, supply hoppers are provided above each of these weighing machines 54a to 54h, 58a to 58h, and these supply hoppers are connected to each of the weighing machines 54a to 54h, 58a to 58h.
The article to be weighed is supplied to each of h. Articles to be weighed are supplied to each of these supply hoppers via a straight feeder and a dispersion feeder arranged above them. In addition, weighing machines 54g, 54h, 58g,
58h weighs the article to be weighed supplied from the supply hopper, stores the weighed value in the auxiliary memory, discharges the article to be weighed into the auxiliary tanks 26a to 26d, and then weighs the article supplied from the supply hopper again. Weigh.

The weighing signals of the weighing machines 54a to 54h, 58a to 58h and the values stored in the auxiliary memory are supplied to a combination calculation section (not shown), are combined in various ways, and are sent to the first room 4 and second room 6 sides. Determine the weighing machine and auxiliary tank for discharging. For example, the weighing machine 54 may be used as a weighing machine and an auxiliary tank for discharging to the first room 4 side.
When a, 54c, 54e and the auxiliary tank 26c are selected, the gate 5 of the weighing machine 54a, 54c, 54e
6 is opened, the auxiliary tank 26c is tilted toward the first chamber 4 as shown in FIG. Also the second
As a weighing machine and auxiliary tank for discharging to the room 6 side,
Weighing machines 58a, 58b, 58f, and auxiliary tank 26
When d is selected, these weighing machines 58a, 58
The gates 60 of b and 58f are opened, and the auxiliary tank 26d is tilted toward the second chamber 6 as shown in FIG. The emptied weighing machine and auxiliary tank are fed with articles and the above-described combination is performed again.

A second embodiment is shown in FIGS. 6 to 8. This embodiment has the same structure as the first embodiment except that the structures of the auxiliary tanks 62a to 62d are different. The auxiliary tank 62a has one input port 64 at the top,
It has two discharge ports 66 and 68 at the bottom. The upper part of the auxiliary tank 62a is rotatably supported by a support 70. In addition, at the lower edge of the support body 70,
As shown in FIG. 8, protrusions 72 and 74 are formed so as to be located on both sides of the auxiliary tank 62a when the auxiliary tank 62a is not tilted.

The discharge ports 66 and 68 have gates 76 and 68, respectively.
78 are provided, and these gates 7
Driving arms 80 and 82 are coupled to the arms 6 and 78, and rollers 84 and 86 are provided at the tips of these arms 80 and 82, respectively. Furthermore, a gate opening/closing link 88 is provided between the middle of the drive arm 80 and the middle of the gate 78. Similarly, the drive arm 82 and the gate 76
A gate opening/closing link 90 is provided between the gate and the middle. Further, a rod 92a of a three-position air cylinder 92 rotatably supported on a base is coupled to the side of the auxiliary tank 62a.

In this embodiment, as shown in FIG.
When the rod 92a is moved backward while the discharge ports 66, 68 are closed, the auxiliary tank 6
2a is inclined toward the first room 4 side. Eventually, the 6th
As shown in the figure, the roller 84 comes into contact with the protrusion 72, the drive arm 80 rotates clockwise, and the gate 76
open. At the same time, the gate 78 is opened by the gate opening/closing link 88. Furthermore, when the rod 92a is moved forward from the state shown in FIG. 8, the auxiliary tank 62a is inclined toward the first chamber 16. Eventually, as shown in FIG. 7, the roller 86 comes into contact with the protrusion 74, and the drive arm 82 rotates counterclockwise, opening the gate 78. At the same time, the gate 76 is opened by the gate opening/closing link 90. Other auxiliary tanks are configured similarly,
and works.

A third embodiment is shown in FIGS. 9 to 11. This embodiment also has the same structure as the first embodiment except that the structures of the auxiliary tanks 92a to 92d are different.
The auxiliary tank 92a is a so-called triangular hopper and consists of two parts 94 and 96. These two parts9
4 and 96 are rotatably supported by a rotation pin 98, and as shown in FIG. 9, articles are discharged from the discharge port 100 opened by opening the two parts 94 and 96 on both sides. The rotation pin 98 is rotatably supported along with a drive arm 104 by a support 102 that protrudes from the base. A long hole 106 is bored at the upper end of the drive arm 104 . Within this elongated hole 106, one ends of three links 108, 110, 112 are connected to each other by pins 114. The other ends of the links 108, 110 have two parts 9
4,96 by pins 116,118 to drive arm 1.
04, and the other end of the link 112 is connected by a pin 122 to a support 120 that is integral with the support 112. In addition, drive arm 1
At the lower end of 04, 3 is rotatably supported on the base.
Rod 124 of position air cylinder 124
a is connected.

In this embodiment, as shown in FIG.
4 and 96 are closed, the rod 124a
When the auxiliary tank 92a is moved backward, the auxiliary tank 92a is tilted toward the first chamber 4 side. At the same time, the links 108 and 110 are connected to the elongated hole 10.
6, parts 94, 96 open on both sides and the article to be weighed is discharged into the first chamber 4.
Also, from the state shown in FIG. 10, the rod 124a
When the auxiliary tank 92a moves forward, the first extension part 16
lean to the side. At the same time, the links 108 and 110 are connected to the long hole 1.
06 , parts 94 , 96 open on both sides and the article to be weighed is discharged into the first extension 16 .

In each of the above embodiments, the collecting chute 2 has the first and second extension parts, but the collecting chute 2 includes Japanese Patent Application Laid-Open Nos. 57-125322 and 58-
2621 can also be used.
Furthermore, in the first and second embodiments, one air cylinder was used to tilt the auxiliary tank and to open the gate, but separate air cylinders may be used for each. In the third embodiment, the drive arm 1
04, but this was removed and the link 112 was further extended upward as shown in FIG. 12, and the rod 124a of the air cylinder 124 was attached to the extended end.
may be combined.

〔effect〕

As described above, according to the present invention, for a collective chute divided into a plurality of rooms by partition walls,
Tilt the article storage tank (auxiliary tank in the example) provided above the partition wall toward a predetermined room, direct the article discharge port toward the predetermined room, and open the gate to discharge the articles. Therefore, even if the article discharged from the article discharge port collides with the opened gate, the article can be reliably discharged into the predetermined room. Furthermore, unlike the conventional device described above, there is no need to butt the two gates against the partition wall, so assembly, adjustment, maintenance, etc. are easy. Furthermore, since the article storage tank performs both storage and sorting of articles, there is no need to provide a separate article storage tank below the sorting device, and the height of the combination scale can be reduced, making it more compact. can be achieved.

Further, in the first embodiment, since there is only one gate, the structure can be simplified and the price can be reduced. Furthermore, although the second embodiment has two gates, both gates are opened to discharge the articles into one room, so only one gate is opened and the articles are discharged into one room. Each gate can be made smaller than conventional gates. Therefore, the amount of penetration when opening and closing the gate can be reduced, and the time required for tilting or returning from a tilted state to a horizontal state can be shortened.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a state in which the auxiliary tank of the first embodiment of the combination weigher according to the present invention is discharging articles to one side of the room, and FIG. FIG. 3 is a diagram showing a state in which the auxiliary tank of the first embodiment is not discharging articles, and FIG. 4 is a diagram of the first embodiment. 5 is a plan view of the first embodiment, FIG. 6 is a diagram showing the auxiliary tank of the second embodiment discharging articles to one room side, and FIG. 7 is a side view of the first embodiment. The figure shows a state in which the auxiliary tank of the second embodiment is discharging articles to the other room side, and Figure 8 shows a state in which the auxiliary tank of the second embodiment is not discharging articles. Figure 9 is a diagram showing a state in which the auxiliary tank of the third embodiment is discharging articles to one side of the room,
Figure 0 is a diagram showing a state in which the auxiliary tank of the third embodiment is discharging articles to the other room side, and Figure 11 is a diagram showing a state in which the auxiliary tank of the third embodiment is not discharging articles. FIG. 12 is a modification of the third embodiment. 2...Collection shot, 17, 19...Division wall,
26a to 26d, 62a, 94a... Auxiliary tank (article storage tank), 30, 66, 68, 100... Discharge port, 52, 92, 124... Air cylinder (drive device).

Claims (1)

[Claims] 1. A collection chute is divided into a plurality of rooms by partition walls, and an article storage tank having an article discharge port at the bottom and a gate for opening and closing the article discharge port is placed in the rooms on both sides of the division wall. A driving device is provided that is tiltably supported above the compartment wall in a state where the article storage tank is selectively oriented, and that selectively tilts the article storage tank to a room on one side of the compartment wall and opens the gate. A combination scale installed in a tank.