JP2519198Y2 - Measuring container of combination weighing machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination weighing machine that stores an object to be weighed supplied from the outside in a weighing container placed on a weighing table and weighs it. The present invention relates to a weighing container of a combination weighing machine having a function of removing a weighed object.

[0002]

2. Description of the Related Art For example, a combination weighing device is used as a device for efficiently collecting a plurality of articles each having a different weight by a prescribed weight. A large number of weighing machines are incorporated in such a combination weighing apparatus, and each weighing machine is composed of a weighing platform and a weighing container placed on the weighing platform. Then, the objects to be weighed are stored in the weighing containers of all the weighing machines, and each weight is measured. Since the weight of each measured object stored in each measured container is not constant, a plurality of objects to be measured should be selected from all the objects to be measured so that, for example, the specified weight of the product to be finally packed is obtained. Select the DUT.

In a weighing machine incorporated in such a combination weighing device, of course, an object to be measured stored in its own weighing container is accurately weighed, and the object to be weighed stored in this weighing container is used for bagging. If the item is selected as one of the items, it is necessary to discharge the objects to be weighed stored in the weighing container in a very short time. As a method for easily discharging the objects to be weighed in this short time, the weighing container to be placed on the upper surface of the weighing table is formed into a cylindrical shape with the upper and lower ends opened, and when the weighing is completed, When discharging the object to be weighed, a mechanism is adopted in which the object to be weighed is dropped downward from the lower end opening by sliding the weighing container on the upper surface of the weighing table until it is removed from the upper surface.

Therefore, when the object to be weighed used for bagging is discharged from the weighing container, the object to be weighed is automatically dropped downward by moving the weighing container horizontally and pushing it out from the upper surface of the weighing table. Therefore, the combination processing efficiency of the entire combination weighing device is increased.

[0005]

However, the weighing container of the weighing machine configured as described above still has the following problems.

That is, if the object to be weighed stored in the weighing container is a packaged candy, dried peanut, or the like, it can be stored inside by sliding the weighing container and pushing it out of the weighing table. All the articles that have been dropped fall through the bottom opening.

However, for example, substances such as pickles that have an adhesive property or substances that contain a large amount of water adhere to the inner peripheral surface of the measuring container. In this case, even if the lower end opening is opened downward, some of the objects to be weighed attached to the inner peripheral surface remain attached without dropping. As a result, there is a problem that the weight of the dropped and bagged product is less than the specified weight.

Conventionally, as a method for removing the object to be measured attached to the inner peripheral surface of the weighing container, a net is provided adjacent to the inner peripheral surface so that the object to be measured does not directly contact the inner peripheral surface. A devised measuring container is considered. Further, it is conceivable that when the weighing container is pushed out of the weighing table, the pressure air is blown onto the inner peripheral surface of the measuring container to prevent the object to be measured attached to the inner peripheral surface from peeling off without dropping.

However, in the method using a net, the object to be weighed adheres to the net, and therefore it is necessary to wash the net frequently.
Further, in the method using the pressured air, the objects to be weighed are indirectly peeled from the inner peripheral surface, so that not all the objects to be weighed are reliably separated from the inner peripheral surface and fall.

The present invention has been made in view of the above circumstances, and when a remover composed of a plurality of rods is provided in the container body in the vicinity of the outer peripheral surface, when the container body is pushed out of the weighing table. An object of the present invention is to provide a weighing container of a combination weighing machine that can surely drop an object to be weighed attached to the inner peripheral surface and can greatly improve the accuracy of measuring the weight of the dropped object to be weighed. .

[0011]

In weighing container combination weighing machine of the present invention to solve the above object, according to an aspect of, slidably mounting on the upper surface of the weighing table for weighing the weight of an object placed on the upper surface A cylindrical container body with open upper and lower ends for accommodating the objects to be weighed supplied from the outside, and a longitudinally arranged inside the container body with a minute gap from the inner peripheral surface. a remover including a plurality of rods, in a state where the container body after the measurement ending is out of the upper surface of the weighbridge from sliding has been the top for the objects to be weighed by the weighbridge, move along the remover on the inner circumferential surface each bar And a remover rotating mechanism for dropping the object to be weighed attached to the inner peripheral surface from the lower end opening.

[0012]

With the weighing container of the combination weighing machine configured as described above, when the object to be weighed is stored with the container body placed on the upper surface of the weighing table, the weight of the object to be weighed is measured. . When the weighing is completed, the container body is pushed out of the weighing table. As a result, the objects to be weighed stored in the container body drop downward from the lower end opening. In this case, the remover rotates while the container body is pushed out of the weighing table, so even if the object to be weighed is attached to the inner peripheral surface of the container body, the object to be weighed is forced by the remover stick. Since it is peeled off, it falls from the lower end opening.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective view showing a combination weighing device incorporating 14 weighing machines using the weighing container of the embodiment, and FIG. 3 is a schematic sectional view showing the combination weighing device.

A hopper 3 for accommodating an object to be weighed, such as pickled vegetables, is attached to the upper surface of the housing 1 from the rear by a supply container 2. The objects to be weighed stored in the hopper 3 are supplied to, for example, 14 supply cups 6 mounted on the front surface of the housing 1 via the guides 5 by the respective conveying screws 4. Each supply cup 6 has a cylindrical shape with an open upper end and a lower end, and is movably mounted on a sliding plate 7. Then, each supply cup 6 is accommodated in the housing 1 by a drive mechanism 8 utilizing, for example, compressed air, and a sliding plate 7
Movement control is performed in the front-rear direction indicated by the arrow in FIG.

A case 9, a container body 10 and a weighing stand 11 for accommodating a remover rotating mechanism which constitutes each weighing machine are disposed below the supply cups 6. As described above, 14 weighing machines are linearly arranged, so that each case 9, each container body 10, and each weighing stand 11 are also linearly arranged. Each container body 10 is formed into a cylindrical shape, for example, made of a plastic material having an open upper end and a lower end, and is movably mounted on the upper surface of each weighing table 11. Similar to each supply cup 6, each container body 10 is controlled to move the weighing platform 11 in the front-back direction indicated by an arrow in FIG. 3 by a drive mechanism 12 that uses, for example, compressed air contained in the housing 1.

Each of the cases 9 has a through hole 13 for supplying the object to be weighed, which has fallen from the lower end opening of the supply cup 6 pushed forward of the disc plate 7, into the container body 10. There is. Further, for example, a load cell is incorporated in each weighing platform 11, and has a function of measuring the weight of an article placed on this weighing platform 11. In this embodiment, the weight value of only the object to be weighed, which is obtained by subtracting the weight of the container body 10 from the measured weight, is output.

The table 1 is located below the 14 weighing machines.
4 is provided, and a discharge port 16 communicating with the discharge chute 15 is formed at the center of the table 14. On the upper surface of the table 14, a pair of collecting arms 17 a, 17 b for collecting the objects to be weighed dropped from the lower end opening of the container body 10 extruded forward of each weighing table 11 onto the table 14 into the discharge port 16. Is provided. The collecting arms 17a and 17b are drive mechanisms 18 provided in the housing 1.
Is controlled by.

A belt conveyer 19 is disposed below the table 14, and a specified weight is supplied through the discharge chute 15 into a collecting container 20 placed on the belt conveyer 19. Weighings are collected.
The weighing object having a predetermined weight collected in the collecting container 20 is conveyed by the belt conveyor 19 to the next bag packing process.

FIG. 1 is a schematic diagram showing a schematic configuration of a weighing container in each weighing machine.

Four rods 21a made of, for example, stainless steel are longitudinally evenly arranged in the circumferential direction at a minute interval of, for example, 1 mm with respect to the inner peripheral surface 10a of the cylindrical container body 10 whose upper and lower ends are opened. It is installed in. The upper end of each rod 21a is bent and fixed to an annular ring 21b. A gear groove is formed on the outer peripheral surface of the ring 21b. A motor 22a is provided in the case 9, and the ring 21b is attached to the shaft of the motor 22a.
A gear 22b that engages with a gear groove formed on the outer peripheral surface of is attached. Therefore, when the motor 22a is rotationally driven, the ring 21b rotates via the gear 22b.
When the ring 21b rotates, each of the four rods 21a attached to the ring 21b moves in the circumferential direction along the inner peripheral surface 10a. Therefore, in the process of moving each rod 21a, the inner peripheral surface 1
The object 23 to be weighed attached to 0a is separated from the inner peripheral surface 10a.

Therefore, each of the rods 21a and the ring 2 is
1b constitutes the remover 21, and the motor 22a and the gear 22b constitute the remover rotation mechanism 22 for rotating the remover 21.

In FIG. 1, the container body 10 has a drive mechanism 12
Shows the state in which the weighing table 11 is pushed forward. Then, the gear 22b of the motor 22a engages with the gear groove of the ring 21b of the remover 21 while the container body 10 is pushed forward of the weighing platform 11. Since the ring 21b is retracted in FIG. 1 when the container body 10 is placed on the weighing platform 11,
The ring 21b and the gear 22b are separated from each other. Therefore, in this state, even if the motor 22a is rotated, the remover 21 does not rotate.

Next, the operation of the combination weighing device thus configured will be described.

First, when an object to be weighed, such as pickled vegetables, is supplied from the supply container 2 into the hopper 3, each conveying screw 4
Is activated and a predetermined amount of the object to be weighed is supplied to each supply cup 6. Next, when each drive mechanism 8 is activated, each supply cuff 6
Inside the container body 10 in a state in which the objects to be weighed stored in the supply cup 6 are placed on the weighing platform 11 through the through holes 13 of the case 9 by being pushed out in front of the sliding plate 7. Fall to.

In this state, the weight (net weight) of each object to be weighed stored in each container body 10 is measured by each weighing platform 11. Then, the necessary weight value is selected from among the 14 weight values so that the predetermined weight is obtained. Then, by driving only the drive device 12 of the container body 10 in which the objects to be weighed having the selected weight values are stored,
The relevant container body 10 is pushed out to the front of each weighing platform 11. As a result, only the objects to be weighed, which are housed in the respective extruded container bodies 10, drop onto the table 14 below.

In this case, each container body 1 pushed forward
The motor 22a of the 0 remover rotation mechanism 22 is rotated. Then, the remover 21 rotates, and the objects to be weighed 23 attached to the inner peripheral surface 10b without separating from the lower end opening are separated from the inner peripheral surface 10a and fall.

The objects to be weighed that have dropped onto the table 14 are collected by the collecting arms 17a and 17b to the discharge port 16 and then collected via the discharge chute 15 into the collecting container 20 on the belt conveyor 19. The weighing object having a predetermined weight collected in the collecting container 20 is conveyed to the next bag-filling step on the belt conveyor 19.

With the above, the combination weighing process for one collecting container 20 is completed. In the next combination weighing process,
Empty container body 1 used in this combination weighing process
Since it is only necessary to supply the object to be weighed from the supply cup 6 to 0, the conveying screw 4 and the drive mechanism 8 of the corresponding supply cup 6 are driven.

As described above, only by attaching the remover 21 and the remover rotating mechanism 22 to each container body 10,
It is possible to peel off the object 23 to be weighed adhering to the inner peripheral surface 10a of the container body 10 without dropping and to surely drop it. Therefore, the weighing object (product) collected in the collecting container 20
The weight of can be controlled correctly to the set value.

[0031]

As described above, according to the weighing container of the combination weighing machine of the present invention, a remover composed of a plurality of rods is provided inside the container body, and the container body is pushed out from the weighing platform. The remover is rotated by the remover rotation mechanism in the closed state. Therefore, when the container body is pushed out of the weighing table, the object to be weighed attached to the inner peripheral surface can be reliably dropped, and the accuracy of measuring the weight of the dropped object can be significantly improved.

[Brief description of drawings]

1 is a perspective view showing a weighing container of a combination weighing machine according to an embodiment of the present invention;

FIG. 2 is a perspective view showing a combination weighing device incorporating the weighing machine of the embodiment.

FIG. 3 is a schematic sectional view showing the combination weighing device.

[Explanation of symbols]

1 ... Casing, 3 ... Hopper, 6 ... Supply cup, 9 ... Case, 10 ... Container body, 11 ... Weighing stand, 12 ... Drive mechanism,
13 ... Through hole, 14 ... Table, 19 ... Belt conveyor, 20 ... Collection container, 21 ... Remover, 21a ... Rod,
21b ... Ring, 22 ... Remover rotation mechanism, 22a ...
Motor, 22b ... Gear, 23 ... Object to be weighed.

Claims (1)

(57) [Scope of utility model registration request] 1. A are slidably placed on the upper surface of the weighing table for weighing the weight of an object placed on the top surface (11), upper and lower ends for containing the objects to be weighed which have been supplied from the outside is opened A cylindrical container body (10), a remover (21) consisting of a plurality of rods arranged in the longitudinal direction at a small interval with respect to the inner peripheral surface in the container body, and the cover by the weighing table. After the weighing of the weighing object is completed, the container body holds the upper surface of the weighing table.
In sliding has been disengaged from the upper surface, the remover to rotate so as each rod is moved along the inner peripheral surface, dropping the objects to be weighed which have adhered to the inner peripheral surface from the lower end opening Union with remover rotation mechanism (22)
Set weighing machine weighing container.