JPH04136508U - Edge measuring device for sheet materials - Google Patents

Abstract

(57) [Summary] [Purpose] To measure the edges of both ends of a film with a simple structure using one or two thickness gauges in one frame [Structure] The present invention One detection head (1) or a pair of detection heads (10A, 10B) for measuring the thickness of the edge of the material (F), and the detection head moves across the entire width of the sheet-like material. When a scanner (2) consisting of a possible shape and the detection head are used as one unit, this one detection head is moved at high speed at the central position of the sheet-like material, and its moving speed is adjusted at both ends. A detection head drive device that can be set to have a low speed, and when there is a pair of detection heads, the pair of detection heads can be set to be movable only at both ends of the sheet material via a timing belt. (3 to 4).

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is based on both edges (edges) of a moving sheet-like object (hereinafter referred to as "film"). ) Concerning an edge measuring device for sheet-like materials that continuously measures the thickness of portions online. It is something that

0002

[Conventional technology]

Conventionally, this type of technology has been applied to the film used in biaxial stretching and extrusion film manufacturing machines. It is a type of film thickness gauge, which is an edge thickness gauge consisting of a thickness gauge and a scanner at both ends of the film. The scanning width can be moved by about 10 cm left and right. It is possible, and the sensor measurement width is 1 to 2 mm, and the data processing measurement interval is 1 mm pitch. A configuration is used to measure the thickness of the edges (both ends) of the film. There is a device. By using such a device, the lateral direction of the biaxially stretched and pressed film can be The shape of the tension in the direction is controlled.

0003

[Problem that the idea aims to solve]

In such conventional technology, as described above, a pair of edge thickness gauges are Since it is necessary to place them at both ends of the film, there are various issues regarding installation space, etc. There are problems such as the consideration of the product and the high manufacturing price. Ta.

0004 The present invention was made in view of these problems of the conventional technology. The purpose of this is to use one or two thickness gauges on one frame. Edge measurement of sheet-like materials that can measure the edges of both ends of the film with a unique structure. It provides a fixed device.

[0005]

[Means to solve the problem]

In order to achieve the above object, the present invention provides a method for measuring the edge thickness of a sheet material (F). One detection head (1) or a pair of detection heads (10A, 10B) for , a scanner configured such that the detection head can move across the entire width of the sheet material; (2) If there is one detection head, this one detection head is connected to the seam. The central part of the tortoise material moves at high speed, and the end parts move at a high speed. The detection head can be set to a low speed, and if there is one pair of detection heads, this one A pair of detection heads are connected to both ends of the sheet material via a timing belt. and a detection head drive device (3 to 4) that is set to be movable only when It is characterized by:

[0006]

[Effect]

The detection head, which is a thickness gauge for measuring the thickness of the film edge, is attached to the film. One or two per frame (scanner) with a structure that allows it to move over the entire width. Assemble one. Especially when one is assembled, the detection head should be driven by the detection head. When driving (moving) using the device, the detection head drive device is connected to a scan motor. The scan motor controller consists of a controller and a calculation means. Move at high speed in the central part of the film, which is the measurement range, and in the range where edge measurement is performed. For example, a calculation means may be used to reduce the moving speed at a certain edge portion. and set it. The measured film edge thickness can be displayed on the display. Wear.

[0007]

【Example】

Examples will be described with reference to the drawings. FIG. 1 is a diagram showing a specific embodiment of the edge measuring device for sheet-like materials according to the present invention. Ru. In particular, FIG. 1 shows a case where one thickness gauge is assembled. 2 and 3 are diagrams for explaining FIG. 1, and in particular, FIG. 2 shows the film and scanner. , a top view of the detection head, and Figure 3 shows the relationship between the movement of the film and the measurement trajectory of the detection head. FIG.

[0008] In Figure 1, 1 is a detection head for measuring the edge thickness of film F. be. 2 is the detection head 1 that detects the entire width of the film F running at a predetermined speed Q. This scanner has a structure that allows it to be moved. 3 is the measurement range of detection head 1 The central part of the film F is moved at high speed and is the range for edge measurement. For example, calculation means 4 is used to reduce the moving speed at the edge portion where the This is the scan motor controller that is set. At this time, calculation means 4 For example, the signal transmission and reception between the and scan motor controller 3 is carried out by The speed control signal SP to the can motor controller 3 is scanned in reverse. Measurement signals and head position signals MH are sent and received from the motor controller 3 to the calculation means 4. be done. 5 receives the edge thickness measurement result of the film F from the calculation means 4 and performs its operation. This is a display unit that displays calculation measurement results.

[0009] According to this configuration, as shown in FIGS. 2 and 3, it is possible to detect the film while it is running. The output head 1 can be moved over its entire width, and at the same time it can In the non-measurement section L in the center, high speed movement (Sp) is possible (as shown in Fig. 3, (the slope becomes steeper relative to the moving speed of the lume), on the other hand, it is necessary to measure the edge thickness. At the edge part of a certain measurement section M, the speed is adjusted slowly to match the measurement. (Lp) (as shown in Figure 3, the slope is relative to the film moving speed). (It will be loose).

0010 In addition, as shown in Figure 3, at the folding point, the Immediately after the time stop section δ exists, move again at a slow speed commensurate with the measurement. (Lp) to measure the edge thickness. The edge measured in this way The thickness can be displayed on the display unit 5 after performing necessary calculations using the calculation means 4. can.

[0011] By the way, for specifications such as further speeding up the measurement, the scanner By using one unit and a common controller, two thickness gauges can be assembled and the drive controlled. You may also do so. The specific structure of this is explained in the other embodiments shown in FIG. This is shown in the accompanying figure. Note that FIG. 5 is a diagram for explaining FIG. 4.

0012 In Figure 4, 6 is the motor, 7 is the vertical belt, 8 is the timing belt, and 9 is the toothed belt. (The relationship between the timing belt and the vertical belt is shown in Figure 5.) ), 10A is the first detection head, and 10B is the second detection head.

[0013] The first detection head 10A and the second detection head 10B are mounted on the scanner (upper and lower beams, respectively). (on the rail) 2, but at this time, the first detection head 10A The first detection head 10A scans according to the movement of the lower side of the belt 8, and the first detection head 10A Scan according to the movement of the upper side of the timing belt 8 (in Fig. 4, the upper and lower Regarding the locking relationship between the timing belt and each head, the upper and lower sides are reversed. good). In other words, the first detection head 10A and the second detection head 10B each have Scan only the edge part of film F, and as a result, the edge thickness of the film This makes it possible to quickly measure the

[0014] In addition, in such a configuration, the film cannot be loaded during autocal (automatic calibration). It is easily possible to remove each.

[0015]

[Effect of the idea]

As explained above, the present invention uses one scanner and one detection head or one pair of detection heads. The detection head is configured so that both edges of the film can be measured. In addition to speeding up the configuration, the overall configuration is simplified, which reduces manufacturing costs. It is possible to reduce the number of maintenance parts and reduce the time and effort involved in installation, etc. It has the effect of being able to do it.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a specific embodiment of the edge measuring device for sheet-like material according to the present invention.

FIG. 2 is a diagram for explaining FIG. 1, particularly a top view of a film, a scanner, and a detection head.

FIG. 3 is a diagram for explaining FIG. 1, particularly showing the relationship between the movement of the film and the measurement locus of the detection head.

FIG. 4 is a diagram for explaining another embodiment.

FIG. 5 is a diagram for explaining FIG. 4;

[Explanation of symbols]

1 Detection head 2 scanner 3 Scan motor controller 4 Calculation means 5 Display section

Claims (1)

[Scope of utility model registration request] 1. One detection head (1) or a pair of detection heads (10A, 10B) for measuring the edge thickness of a sheet-shaped material (F), and A scanner (2) having a shape that allows the detection head to move across the entire width of the substance.
When the number of the detection heads is one, the one detection head can be set to move at high speed at the central position of the sheet-like material and to move at low speed at both ends. When there is a pair of detection heads, it shall consist of a detection head drive device (3 to 4) set so that the pair of detection heads can be moved only at both ends of the sheet material via a timing belt. An edge measuring device for sheet-like materials characterized by: