JPS5827921Y2 - Wrapping paper bifold mechanism of tablet packaging machine - Google Patents

Description

[Detailed description of the invention] This invention relates to an automatic packaging device for tablets such as medicines, which can easily align both end faces when the wrapping paper is folded in half, and can detect this when normal folding in half is not affected. The purpose of this device is to prevent defective packaging from occurring.

Since a tablet packaging machine is configured to form a wrapping paper into a bag shape and fill it with tablets as appropriate, the wrapping paper is generally folded in half in advance and then wound and held.

However, according to this method, the diameter of the roll becomes thicker than a flat roll due to the amount of folding, so the length of the wrapping paper is severely limited in terms of space, and the rolls have to be replaced frequently. Ta.

Therefore, there is a need for a device that uses a flat roll and folds the drawn wrapping paper in half during the wrapping process of the device to form a bag.

However, with such a device, fine adjustments must be made to fold the wrapping paper in half symmetrically about the center line and align both ends, making setting the wrapping paper a cumbersome task.

The present invention has been devised in view of this point, and one embodiment will be described below with reference to the drawings.

FIG. 1 shows a tablet packaging machine, which is composed of a tablet storage container arrangement section 8 and a tablet packaging section 9, and the tablets are dropped and sent out from a designated tablet storage container 10 by a predetermined tablet extraction operation. The tablets are held by an intermediate shutter 11, and when one package of tablets is stored, the intermediate shutter 11 opens and the tablets are transferred to the hopper mouth 1.
Fall to 2.

Then, the hopper mouth 12 pours out the tablets while opening the wrapping paper 13, which has already become a pouch, in the tablet packaging section 9, and the tablet packaging section 9 further packages the tablets.

The tablet packaging section 9 includes take-out rollers 2 and 3 that take in the wrapping paper 13 in the longitudinal direction from the rotary roller 1 intermittently, and the wrapping paper 1 that takes in the wrapping paper 1.
3 symmetrically from the center line, a vertical heat-sealing mechanism 15 that heat-seals the folded wrapping paper 13 to form a wrapping paper, and an upper opening after the tablet is introduced into the packaging bag. It consists of a horizontal heat-sealing mechanism 16 that heat-seals the ends.

FIG. 2 shows the folding mechanism 14 in half, and the folding plate 4 has an isosceles triangular shape, and the apex traces the longitudinal center line of the wrapping paper 13 transferred by the take-out rollers 2 and 3, and a pair of sides The wrapping paper 13 is folded symmetrically from the center line.

Furthermore, the wrapping paper 13 is inserted through the gap between the bottom of the folding plate 4 and the feed roller 20, but flanges 21 and 22 are attached to both ends of the feed roller 20, and both ends of the wrapping paper are regulated and folded into two. 14 will be introduced.

Since the regulating plate 5 is disposed across both ends of the folded wrapping paper 13 and regulates both ends to be at the same height, the center line of the wrapping paper 13 is traced by the apex.

Further, limit switches 6.7 are attached to the regulation plates 5, respectively, so that actuators 17.18 are brought into operation by contacting both ends when the wrapping paper 13 is folded in half symmetrically about the center line.

Therefore, if either limit switch 6.7 is inactive, it can be detected that the apex of the regulating plate 5 is not following the center line and is not folded symmetrically, and if both are inactive, the packaging It is possible to detect when the paper 13 is finished, and in such a case the wrapping operation of the device is immediately stopped to stop defective wrapping.

Further, one end of the regulating plate 5 is pivotally supported to the mounting plate 19, and when loading the wrapping paper 13, the regulating plate 5 is quickly set by adjusting its rotation so that it becomes horizontal.

According to the present invention described in detail above, in a tablet packaging machine that forms a packaging bag by folding wrapping paper in half, the wrapping paper can be folded into two accurately by only making rough adjustments using the folding plate and the regulating plate. can be set to .

During operation, both ends of the wrapping paper folded in half are regulated by the regulating plate, so that one end is prevented from protruding and the axis of symmetry of the folding paper deviates from the center line.

In addition, limit switches are installed on the regulation plate to detect the positions of both ends of the wrapping paper, which can prevent defective packaging from occurring if the axis of symmetry of the 10,000-bifold fold deviates from the center line or if the wrapping paper runs out. .

[Brief explanation of the drawing]

FIG. 1 is a side view showing a tablet packaging machine to which the present invention is applied, and FIG. 2 is a perspective view showing the bifold mechanism of the present invention. 1... Rotating roll, 2, 3... Taking out device, 4... Folding plate, 5... Regulating plate, 6
,7...Limit switch.

Claims (1)

[Scope of utility model registration request] A rotary roll around which wrapping paper is wound, a feed roller having flanges at both ends corresponding to the ends of the wrapping paper taken out from the rotary roll, and a feed roller that faces the feed roller at its bottom and is connected to the feed roller. A triangular shape in which the wrapping paper is folded in half with its top tracing approximately the center line in the direction of travel of the wrapping paper introduced through the gap formed by the base, and with a pair of sides forming the top forming the center line as an axis of symmetry. a folding plate, a regulating plate for passing both ends of the wrapping paper folded in half, a limit switch attached to the regulating plate to detect the height position of both ends of the wrapping paper, and a stage subsequent to the regulating plate. A wrapping paper folding mechanism for a tablet packaging machine, which comprises a take-out device which is disposed at and transfers the folded wrapping paper by pinching both end surfaces thereof.