JPH052248B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a combination weigher, and particularly to the arrangement of a weighing section for weighing articles in a combination weigher.

[Prior art]

Conventionally, there has been a combination scale as shown in FIG. 3, for example (FIG. 1 of Japanese Utility Model Application No. 57-151327).
In the figure, reference numeral 50 denotes a rectangular frame-shaped base, and a collection chute 52 is arranged in the center thereof.
Above the collection chute 52, a support stand 56 is supported on the base 50 by support legs 54,
A dispersion feeder 58 is arranged in the center of this support stand 56. A plurality of electromagnetic linear feeders 60 are provided radially outward from the peripheral edge of the dispersion feeder 58, and supply hoppers 62 are provided at the tips of these electromagnetic linear feeders 60, respectively. Below the hopper 62, a weighing hopper 64 is provided,
These weighing hoppers 64 are each coupled to a weighing section 66 provided on the base 50.

[Problem that the invention seeks to solve]

In the combination scale as shown in FIG. 3, the weighing part 66 is arranged on the base 50, so when the combination scale is suspended by a crane or the like when shipped from the factory, the weighing part 66 is placed on the base 50. There were cases where the hanging wire came into contact with the measuring section 66 and the measuring section 66 was damaged. Furthermore, when attempting to install this combination scale at an installation site, the weighing section 66 collided with an object at the site, resulting in damage to the weighing section 66 as well. In order to prevent such damage to the weighing section 66, it is necessary to make the weighing section 66 heavy, which increases the cost of the combination scale. Moreover, in order to prevent some kind of item from colliding with the weighing section and damaging the weighing section during shipping, the packaging of the combination scale must be sturdy, which requires time and effort. In addition, each measuring section 66 is
Since it is placed on a rectangular frame-shaped base 50,
Coaxial cables for transmitting weighing signals from each weighing section 66 to the arithmetic control section must be routed along the periphery of the base 50, which increases the length of the coaxial cable and increases cost. , the S/N ratio was deteriorated.

[Means for solving problems]

In order to solve the above problems, the present invention includes a support part whose upper surface is flat and a lower part of the outer peripheral surface is recessed inward, and a support part which is disposed on the upper surface of the support part, and which allows the article to be moved outwardly. An article supply section to be transported, a plurality of weighing hoppers each disposed below and outside of the article supply section to receive articles from the article supply section, and the support section are formed separately,
It comprises: an annular accommodating portion disposed within the recessed portion; and a plurality of weighing portions disposed within the accommodating portion and coupled to each of the weighing hoppers for weighing articles in each of the weighing hoppers. It is something to do.

[Action/Effect]

According to this invention, the accommodating portion is provided in the recess provided in the lower part of the peripheral surface of the support portion, and the measuring portion is provided in each of the accommodating portions. Therefore, when the combination scale according to the present invention is suspended by a crane or the like for shipping, the hanging wire may come into contact with the upper part of the support part, but it will not reach the inside of the recess below the support part. There is no contact with the measuring section located in the storage section provided in the container. Further, even when the combination scale according to the present invention is installed at an installation location, articles in the vicinity of the installation location never come into contact with the weighing section. In this way, the weighing section will not be damaged during shipping or installation, so there is no need to make the weighing section bulky, which not only reduces the weight of the combination scale, but also reduces costs. You can also do it.

Furthermore, since the weighing section is provided in the accommodation section in the recessed section as described above, even if some object collides with the combination weigher according to the present invention during shipping, at most the upper part of the support section or the support section will be damaged. It only collides with the storage section at the bottom and never directly collides with the measuring section. Therefore, the packaging does not need to be sturdy, and can be as simple as wrapping it in a vinyl sheet to protect it from dust and rainwater, which can save time and materials for packaging.

In addition, since the weighing sections are provided within the annular housing section, the coaxial cables that transmit weighing signals from each weighing section to the arithmetic control section can transmit weighing signals over a relatively short distance to the control section. , it is possible to reduce the number of coaxial cables and improve the S/N ratio.

〔Example〕

This embodiment has a base 2 as shown in FIGS. 1 and 2. The base 2 is formed in the shape of a frame whose central portion is vertically penetrated. This base 2
A support part 4 is provided in the center of the support part 4, and three legs 6 protrude toward the base 2 at intervals of 120 degrees from the bottom surface of the support part 4, and their tips are connected to the base 2.
It is fixed inside via vibration isolating rubber 8.

The support part 4 has an enlarged part 10 at its upper part, and has a recessed part 12 in the entire lower peripheral surface of this enlarged part 10. On the upper surface of the enlarged portion 10, a plurality of electromagnetic linear feeders 14 are arranged radially outward from the center.
is located. A cone portion 16 formed in a shade shape is provided so as to straddle these linear feeders 14. A supply hopper 18 is provided on the outside of each linear feeder 14, and a cone portion 16
The articles fed thereto slide toward each linear feeder 14 and are fed to each supply hopper 18 by vibrating the linear feeder 14. A weighing hopper 20 is provided below each supply hopper 18 . 22 is a cylinder for opening and closing the discharge gate of the supply hopper 18, and 24 is a cylinder for opening and closing the discharge gate of the weighing hopper 20.

A housing portion 26 formed in an annular shape is arranged in the recessed portion 12 . On the lower surface of this accommodating portion 26, three legs 28 protrude toward the base 2 at intervals of 120° so as to weave between the legs 6, and are fixed to the base 2. Each weighing hopper 20 is provided in the housing section 26.
Load cells 29 are provided as a weighing section so as to correspond to each other, and these load cells 29 are connected to corresponding weighing hoppers 20. Articles are supplied to these weighing hoppers 20 from the supply hopper 18 above them, and are weighed by a load cell 29. 30 is a collective shot.

The weighing signals of each load cell 29 are variously combined by a calculation unit, and articles are collected at a collection chute 30 from weighing hoppers 20 whose combined total value is equal to or closest to a predetermined reference weight.
is discharged.

In the embodiment described above, the supply hopper 18 is provided, but this may be removed and the articles may be supplied directly from the linear feeder 14 to the weighing hopper 20. Also,
Although a frame-shaped base 2 is used, a ring-shaped base may be used instead.

Furthermore, in the above embodiment, in order to prevent the vibration of the electromagnetic linear feeder 14 from being transmitted to the load cell 29 and improve the combined weighing accuracy, the support part 4 and the housing part 26 are separated into separate legs 6 and 28. Therefore, they are each attached to the base 2, but if high-precision combined weighing is not required, the housing part 26 and the support base 4 may be formed integrally and attached to the base 2 using the same leg. Good too.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted vertical cross-sectional view of an embodiment of a combination weigher according to the present invention, FIG. 2 is a partially omitted cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a portion of a conventional combination weigher. It is an abbreviated longitudinal cross-sectional view. 14...Electromagnetic linear feeder (goods supply device), 2
0...Weighing hopper, 29...Load cell (measuring part).

Claims (1)

[Claims] 1. A supporting part with a flat upper surface and an inwardly recessed lower part of the outer circumferential surface, an article supplying part disposed on the upper surface of the supporting part and transporting articles outward, and an outer part of the article supplying part. a plurality of weighing hoppers that are respectively disposed below the article supply section and receive articles from the article supply section; an annular accommodating section that is formed separately from the support section and disposed within the recess; A combination weigher comprising: a plurality of weighing sections disposed within the weighing section and coupled to each of the weighing hoppers for weighing articles in each of the weighing hoppers.