JPS5826322Y2 - Roller type thickness detection device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a roller set thickness detection device.

The inventor of this invention previously invented an automatic pouch inserting machine that reliably inserts pouches containing desiccant and various fillers one bag at a time in synchronization with a packaging machine etc. during filling and packaging of zero foods, etc. However, when the filling material is a fluid, it is not possible to accurately detect the thickness of the sachet filled with the filling material.

The reason for this is that the filling inside the pouch is a fluid, so if you want to detect it with the thickness detection roller, the fluid will move inside the pouch, so the filling will be detected at a predetermined position in the pouch. This is because it was not possible to detect the thickness of the sachet, which changes depending on the amount of water.

The purpose of this invention is to provide a roller set thickness detecting device that can accurately detect the thickness of a pouch filled with such a fluid.

The configuration will be explained below with reference to the drawings.

In this invention, in order to detect the thickness of a continuous pouch 1 filled with a fluid, the fluid filled with the pouch 1vC is forcibly used separately from the thickness detection rollers 3 and 4 of the roller set thickness detector 2. This roller set thickness detecting device is characterized in that presser rollers 5 and 6 are provided for moving and making the pouch iK bulge between the thickness detecting rollers 3 and 4.

In the above configuration, the presser rollers 5 and 6 may be disposed above the roller set thickness detector 2 as in the embodiment shown in the second drawing, or may be disposed below it.

The presser roller 6 is rotatably provided at one end of an L-shaped arm 16 whose intermediate portion is pivoted by a pin 15, and is urged against the presser roller 5 by a tension spring 17.

Next, the roller set thickness detector 2 includes a detector body 7, a thickness detection roller 3 rotatably provided on the detector body 7, and an intermediate portion thereof pivotally connected to the detector body 7 by a pin 8. An L-shaped arm 9, a thickness detection roller 4 rotatably provided at one end of the arm 9, a shielding plate 10 attached to the other end of the arm 9, and the thickness detection roller 4.
It is formed of a tension spring 11 for causing the thickness detection roller 3 to spring slightly, and a phototube device 14 sandwiching the shielding plate 10 and having a light projecting part 12 and a light receiving part 13 on both sides thereof.

In operation, when the continuous pouch 1 is fed downward from the top of the drawing, the pouch 1 about to pass between the thickness detection rollers 3 and 40 of the roller set thickness detector 2
Since the upper middle part of the pouch 1 is pressed down by the press rollers 5 and 6, the fluid filled in the pouch 1 is forcibly moved to the thickness detection rollers 3 and 4.
A bulge is forcibly created in the lower part of the pouch 1 between the pouch 1 and the pouch 1.

Then, when the pouch 1 is further sent downward, the thickness detection roller 4 opens wide due to the bulge of the pouch 1, and as a result, the arm 9 rotates counterclockwise around the pin 8, and the light emitting section of the phototube device 140 The shielding plate 10 interposed between the light receiving section 12 and the light receiving section 13 rotates together with the arm 9, so that the light is no longer shielded, and the thickness of the pouch 1 is detected.

As explained above, according to the roller set thickness detection device of this invention, the fluid filled in the pouch is forcibly moved separately from the thickness detection roller of the roller set thickness detector. By disposing a pressure roller to create a bulge in the pouch between the two, the thickness of the pouch can be accurately detected even if the pouch is filled with fluid.

Next, since the roller set thickness detector is composed of the thickness detection roller, arm, and phototube device as described above, the thickness detection roller and the phototube device that operate accurately according to the thickness of the pouch and the arm do not move. Since the thickness can be immediately and accurately detected, the thickness detection accuracy can be improved and the detection results can be easily transmitted electrically to other devices.

[Brief explanation of drawings]

The drawing is a front view showing one embodiment of the roller set thickness detecting device of this invention. In the drawing, 1 is a continuous pouch, 2 is a roller set thickness detector, 3 and 4 are thickness detection rollers, 5 and 6 are press rollers, 7 is the detector body, 8 is a pin 9 is an arm, and 10 is a shielding plate , 11 is a tension spring, 12 is a light emitter, 13 is a light receiver,
14 is a phototube device.

Claims (1)

[Claims for Utility Model Registration] 1. Thickness detection roller 3 of roller set thickness detector 2 for detecting the thickness of continuous pouch 1 filled with fluid.
, 4, forcibly move the fluid filled in the small bag 1 and place it between the thickness detection rollers 3 and 4.
A roller set thickness detecting device characterized by six arrangement. 2. The roller set thickness detector 2 has an L-shape, which includes a detector body 7, a thickness detection roller 3 rotatably provided on the detector body 7, and an intermediate portion thereof pivoted to the detector body 7 by a pin 8. A shaped arm 9, a thickness detection roller 4 rotatably provided at one end of the arm 9, a shielding plate 10 attached to the other end of the arm 9, and the thickness detection roller 4 are lightly bounced against the thickness detection roller 3. Claims for registration of a utility model characterized in that it is formed of a zero-tension spring 11 for emitting light, and a phototube device 14 sandwiching the shielding plate 10 and having a light projecting part 12 and a light receiving part 13 on both sides thereof. The roller set thickness detection device according to item 1.