JPS6235218A - Thickness measuring instrument for sheet-shaped form - Google Patents

Abstract

PURPOSE:To measure continuously the thickness of a sheet-shaped form extending the total length by holding the sheet-shaped form between two probes one of which descends by its own weight and measuring its thickness and informing a measured value and providing a mobile means in the direction to cross orthogonally to the traveling direction of the sheet-shaped form. CONSTITUTION:The sheet-shaped form 10 travels on a form supporter 18 in the orthogonal direction to space. When a power source is on, an air cylinder 42 starts to contract and a frame 26 is moved on a rail 40 in the direction to the sheet-shaped form 10, and the air cylinder 42 stops to contract at a point of time when a side end part of the sheet-shaped form 10 intercepts between photosensors 44 and 44 and the frame 26 stops at the position. Then, a cylinder 32 is actuated and an arm 34 is lowered and hereby, a spindle 28 and the probe 22 can descend by the own weights and the sheet-shaped form 10 is held between the probes 20 and 22. Then, the thickness of the form 10 is read with a digital gage 24 and its numerical mark is sent to a digital counter 36 and indicated by a figure and an alarm is sounded when the value is out of a range of the set thickness.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for continuously and automatically measuring the thickness of a running sheet-like foam.

(Prior Art) Sheet-like foam is continuously manufactured by passing a continuously supplied raw material of foam, for example, a raw material of urethane foam, through a plowing machine set to a predetermined thickness.

By the way, the sheet-shaped foam obtained in this way must be checked to see if it has a predetermined thickness before being shipped as a product. The thickness was measured by sandwiching the foam.

However, when measuring using a thickness gauge, the operator directly operates the thickness gauge and interprets the value. If measurements were to be taken, a worker would have to carry out the measurement work all the time, and such work was completely unacceptable from the point of view of work efficiency.

Therefore, at present, the thickness of a traveling sheet-like foam is measured only at a few points using a thickness gauge, which is called a point measurement.

(Problems to be Solved by the Invention) This invention has been made in view of the above-mentioned points.
The purpose of the present invention is to provide a device that can perform automatic measurement.

(Means for Solving the Problems) A sheet-like foam thickness measuring device according to the present invention includes a measuring means that measures the thickness of a sheet-like foam by sandwiching the sheet-like foam between two measuring elements, one of which descends due to its own weight; It is characterized by comprising a thickness informing means and a moving means in a direction perpendicular to the running direction of the sheet-like foam.

(Example) FIG. 1 is a side view schematically showing an embodiment of this invention.

The device according to the invention includes a measuring means 12 for measuring the thickness of the sheet-like foam 10, a means 14 for notifying the thickness,
It is composed of a moving means 16.

The measuring means 12 includes a measuring element 2 that holds the sheet-like foam 10 between
0.22, and a digital gauge 24 that reads the thickness of the portion sandwiched between the measuring probes.

The gauge head 20, 22 consists of a disc with a diameter of 5 am, and the lower gauge head 20 has a disc in order to smoothly enter the sheet-like foam 10 onto the gauge head 20. It has a guide portion 20a bent downward at the end.

The lower measuring element 20 is attached to a frame 26. Further, the upper measuring element 22 is attached to the lower end of a spindle 28 that moves up and down within the digital gauge 24, and as described later, can be lowered by its own weight together with the spindle 28.

The spindle 28 is supported upwardly when the cylinder 32 is extended by an arm 34 attached to the top of the cylinder 32 which is fixed to a post 30 of the frame 26.

Since the arm 34 descends when the cylinder 32 contracts, the spindle 28 can freely descend together with the probe 22 due to its own weight.

The digital gauge 24 functions to read the thickness of the sheet-like foam 10 at the portion sandwiched by the measuring probes 20 and 22, and to send a numerical signal of the thickness to the notification means 14.

The notification means 14 includes a digital counter 36 that numerically represents the thickness numerical signal sent from the digital gauge, and a comparator 38 that issues a warning with an alarm lamp or buzzer if the thickness deviates from a preset range.

The moving means 16 includes a rail 40 extending in the width direction of the sheet-like foam 10, and an air cylinder 42 connected to the frame 26 that slides on the rail 40. Then, as the air cylinder 42 expands and contracts, the frame 26 moves on the rail 40 in the width direction of the sheet-like form 10, and the side edges of the sheet-like form are connected to the optical sensor 44.
, 44, the movement of the frame 26 is stopped.

Next, the operation of the thickness measuring device having such a configuration during use will be described.

(Function) The thickness measuring device is arranged perpendicular to the traveling direction of the sheet-like foam 100. At this time, the cylinder 32 is extended, the spindle 28 and the probe 22 are in a lifted state, and the two probes 20, 22 are at a distance.

In FIG. 1, the sheet-like foam 10 runs on the foam receiver 1B in a direction perpendicular to the plane of the paper.

When the power switch is turned on, the air cylinder 42 begins to deflate and the frame 26 moves on the rail 40 toward the sheet-like foam 10. And optical sensor-44,4
When the side edge of the sheet-like form 10 interrupts the space between 4 and 4,
The air cylinder 42 stops contracting, and the frame 26 stops at that position.

Next, the cylinder 32 is actuated and the arm 34 is lowered, thereby allowing the spindle 28 and the probe 22 to descend due to their own weight, thereby sandwiching the sheet-like foam 10 between the probes 20 and 22.

Then, the thickness of the sheet-like foam 10 sandwiched between the probes 20 and 22 is read by the digital gauge 24, and the numerical signal is sent to the digital counter 36 and displayed in numbers. At the same time, the value is the comparator 38
If the thickness falls outside of the preset thickness range, a warning will be issued with a buzzer or lamp.

In addition, since the sheet-like foam 10 is continuously supplied, the portion defined between the measuring elements 20 and 22 spans the entire length of the sheet-like foam 10, and moreover, the portion between the upper measuring element 22 and the sheet-like foam 10 contact with the probe 22
Since this is due to the weight of the spindle 2B, the measuring stylus 22 automatically moves up and down according to the thickness of the sheet-like foam, and thereby the thickness is automatically measured over the entire length of the sheet-like foam. The Rukoto.

(Effects of the Invention) The thickness measuring device according to the present invention is capable of continuously and automatically measuring the thickness of a traveling sheet-like foam over the entire length of the sheet-like foam as described above.

Therefore, if the thickness measuring device according to the present invention is used, the operator does not have to be on duty all the time to measure the thickness, which saves labor, and the thickness can be measured over the entire length of the sheet-like foam. In addition, more complete quality control becomes possible, and quality improvement effects can also be obtained.

[Brief explanation of drawings]

FIG. 1 is a side view schematically showing an embodiment of the present invention. 12 Measuring means, 14 Notifying means, 16/Moving means 20.22 Measuring head

Claims (1)

[Claims] Measuring means for measuring the thickness of a sheet-like foam by sandwiching it between two measuring elements, one of which is lowered by its own weight; a means for notifying the thickness; and a means for moving the sheet-like foam in a direction perpendicular to the running direction. A device for measuring the thickness of sheet foam.