JPS6124897Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a tablet scattering prevention device during weight measurement.

Generally, in tablet machines that automatically control the weight of tablets, the counted tablets are placed on an electronic precision balance, the total weight is measured, and this is loaded into a microcomputer and calculated. However, when a tablet falls onto an electronic precision balance and is placed on top of it, the tablet rolls and flies out of the balance, making it impossible to measure the weight or causing large errors.

Therefore, instead of dropping the tablet directly onto the balance pan using a chute, the tablet is dropped through a tablet guide tube placed on the balance pan. If there is, the measured value will not be accurate, so it is necessary to raise the guide cylinder upwards and take the measurement.

However, when the guide tube is raised upward,
There was a risk that the many tablets that had been piled up inside the guide tube would collapse all at once and fall onto the outside of the balance pan.

This invention is an improvement on the drawbacks of the conventional tablet scattering prevention device during weight measurement, that is, the tablet guide cylinder, and its structure is explained as follows.

This invention controls the weight of tablets by placing the counted tablets on an electronic precision balance via a tablet guide tube that can move up and down, measuring the total weight, and importing this into a microcomputer for calculation. A device for preventing tablets from scattering during weight measurement in a tablet machine configured as described above, characterized in that the lower part of the tablet guide cylinder is formed into a skirt shape.

Next, an embodiment of this invention will be described below with reference to the drawings.

A tablet guide cylinder 1 is disposed above the center of a pan 2 of an electronic precision balance so as to be able to move up and down. That is, one end of the guide tube 1 is supported by the other end of a bracket 4 attached to the upper end of the lifting shaft 3, and the lifting shaft 3 is supported by a vertical linear head 5 having a built-in motor and gears. By moving up and down, it moves up and down above the center of the tray 2 of the balance.

The counted tablets 6 automatically fall into the guide tube 1 by the chute 7, but by having a skirt 8 at the bottom of the guide tube 1, the tablets 6 follow the shape of the skirt 8 and are sequentially dropped. A predetermined number of tablets 6 are stacked on the balance tray 2 and placed inside the guide cylinder 1.

After that, the guide tube 1 is lifted by the lifting shaft 3.
As the tablet 6 rises, the tablet 6 inside the skirt 8
Even if it collapses a little from its regular shape, it will not fall to the outside of the balance pan 2, and will be surely placed on the balance pan 2, and its total weight will be measured.

After the measurement, the tablet 6 placed on the balance pan 2 is moved by the brush 10 attached to the lower end of the brush case 9 to the chute 11 disposed at the lower front of the balance pan 2. It is extruded to the top and stored in a tablet container or the like.

The brush case 9 has a horizontal linear head 12.
As the reciprocating shaft 13 reciprocates, it reciprocates horizontally above the balance pan 2.

As explained above, according to the device for preventing tablet scattering during weight measurement of this invention, by forming the lower part of the tablet guide tube in a skirt shape, tablets that automatically fall into the inside of the guide tube can be prevented. Following the shape of the skirt above, tablets can be stacked in a mountain shape on the pan of an electronic precision balance to prevent them from collapsing significantly, and when the tablet guide tube is raised, the tablets stacked will collapse significantly. You can place the balance on the balance plate and take measurements without any problems.

Next, even if the rising speed of the tablet guide cylinder is considerably increased, the tablets will not collapse significantly, and there is no danger that the tablets will roll to the outside of the balance pan, so that the measurement can be carried out quickly and reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the device for preventing tablets from scattering during weight measurement according to this invention. Fig. 1 is a plan view, Fig. 2 is a longitudinal sectional front view of the main part when a tablet falls, and Fig. 3 is a tablet guide. FIG. 6 is a longitudinal sectional front view of the main part when the cylinder is raised. In the drawings, 1 is a tablet guide cylinder, 2 is a plate of an electronic precision balance, 6 is a tablet, and 8 is a skirt.

Claims (1)

[Scope of utility model registration request] A tablet whose weight is controlled by placing the counted tablets on an electronic precision balance via a tablet guide tube that can move up and down, measuring the total weight, and importing this into a microcomputer for calculation. A device for preventing tablets from scattering during weight measurement in a weighing machine, characterized in that the lower part of a tablet guide cylinder is formed into a skirt shape.