JPS6315786Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the structure of a bracket for mounting the weighing hopper of an automatic weighing device.It is difficult for objects to be weighed, water, dust, etc. to adhere to the bracket part, and it is possible to eliminate measurement errors caused by these. The purpose is to provide a bracket structure.

Generally, an automatic weighing device has a weighing hopper attached to the tip of its bracket, supplies the object to be weighed to this weighing hopper, detects the total weight including the hopper as the magnitude of the output signal of a displacement detector, and then reaches a predetermined weight. At this point, the supply of the object to be weighed is stopped and the object to be weighed is taken out. However, in the conventional automatic weighing device, as shown in FIG. Post 2 connected to a detector (not shown)
3, and has a structure in which the weighing hopper 24 is attached to the rising portion 22b by inserting its frame-shaped attachment portion 24a, for example.
There is a problem in that deposits 25 such as a part of the object to be measured, water during washing, and dust tend to accumulate on the horizontal piece 22a, and these deposits 25 cause measurement errors.

This invention aims to solve the above problem, and includes a displacement detector that supports the weighing hopper via a bracket, which is housed in a casing, and an upwardly facing portion of the bracket that extends from the casing to the weighing hopper. By making the surface an inclined surface that allows objects falling from above to slide down, the structure is such that the object to be weighed, water, dust, etc. mentioned above is difficult to adhere to the bracket, and stable and high measurement accuracy is maintained. There is.

An embodiment of this invention will be described below with reference to the drawings.

In Figures 1 to 3, 1 is a container having a substantially rectangular parallelepiped external shape and a protective liquid 2 is injected therein, and 3 is a cantilever-supported container that is fixed to one end of the container 1 by bolting or the like. A displacement detector 4 is fixed to the other end of the detector 3 and has an upper portion protruding outward from the open end of the cylindrical portion 1a of the container 1. A displacement detector 5 is attached to the upper end surface of the support 4. A bracket 6 fixed with bolts 5a and 5b is screwed onto the upper part of the column 4 and tightened when the weighing device is not in use to secure the container 1.
A cap 7 is used to seal the displacement detector 3, the column 4, and the bracket 5. The cap 7 is engaged when the column 4 rises due to further tightening of the cap 6, and is used to fix the connected body consisting of the displacement detector 3, column 4, and bracket 5 during transportation or the like. 8 is a spring plunger for preventing loosening of the cap 6; 9, indicated by a two-dot chain line, is a cover body to be placed over the top of the container 1; It constitutes a casing that houses the.

As shown in the figure, the bracket 5 includes a flat base piece 10 that is fixed to the support column 4, and a weighing hopper mounting piece 1 that is bent at a right angle from the tip of this base piece 10 and projects forward.
1, and a weight receiving piece 14 which extends from the tip of the base piece 10 through a step and is adapted to receive the weight of a reference weight 13 which is raised and lowered by a solenoid 12 for span adjustment. The distal end portion 11a of the weighing hopper attachment piece 11 has an end surface 15 slightly inclined forward and inclined side surfaces 16a, 16b inclined both left and right from the top, and has a substantially triangular shape when viewed from the front. A flange portion 17 is formed on the rear side of 16b and rises along this. The flange portion 17 has both left and right lower ends extending downward and has hanging pieces 17a and 17b, and the inner surface of the front portion of the cover body 9 is in contact with the flange portion 17 as shown in the third figure, and the opening of the cover body 9 Tip part 11 of weighing hopper mounting piece 11 from window part 9a
a is configured to protrude forward. Note that the weighing hopper mounting piece 11 has an inclined side surface 18a on the rear side 18 from the flange portion 17 as well as the tip portion 11a.
18b.

FIG. 4 illustrates a state in which the weighing hopper 19 is attached to the bracket 5 of the weighing device having the above structure. In this example, a guide plate 20 whose lower end is bent backward is fixed to the end surface 15 of the weighing hopper mounting piece 11 of the bracket 5 with screws or the like, and the weighing hopper 1
The weighing hopper 19 is attached by fitting and sliding the mounting frame portion 19a of 9 onto the guide plate 20 from above. In the example shown in FIG. 4, the weighing hopper 19 is detachable, but it is also possible to use a fixed type in which the weighing hopper 19 is fixed directly to the end surface 15 of the bracket 11 with screws or the like without using the guide plate 20. Good too.

In the above embodiment, a load cell was used as an example of a displacement detector due to the measured weight, but other devices such as a differential transformer may be used as a displacement detector, and the structure of each measuring part is not shown in the embodiment. Various other changes can be made.

As described above, in the automatic weighing device according to this invention, the weighing hopper is attached and supported by the displacement detector via the bracket, and the displacement detector further projects the weighing hopper mounting side portion of the bracket to the outside. At the same time, the upward facing surface of the weighing hopper mounting side of the bracket is an inclined surface that allows falling objects to slide down from above, so objects to be weighed, water, dust, etc. are removed from the inclined surface. It does not fall out of the apparatus and remain attached to the bracket, which has the excellent effect of ensuring highly accurate measurement over time without causing measurement errors.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an automatic weighing device to which the bracket structure of one embodiment of this invention is applied;
Figure 2 is a plan view of the same as above, Figure 3 is - of Figure 2.
FIG. 4 is a side view of the device with the weighing hopper attached, and FIG. 5 is a schematic side view mainly showing the bracket portion of the conventional device. 5...Bracket, 11...Measuring hopper mounting piece, 11a...Tip portion, 16a, 16b...Slanted side surface, 17...Bracket portion, 19...Measuring hopper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In an automatic weighing device in which a weighing hopper that accommodates objects to be weighed supplied from above and discharges them downward is mounted and supported on a displacement detector via a bracket, the above-mentioned The displacement detector is housed in the casing with the weighing hopper mounting side of the bracket protruding outside, and the upward facing surface of the weighing hopper mounting side of the bracket prevents objects falling from above from sliding down. An automatic weighing device characterized by having an inclined surface. (2) The automatic weighing device according to claim 1, wherein the weighing hopper is detachably attached to the bracket.