JP2004205447A - Jig for measuring distances between roll and object and method for measuring distance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jig for measuring distance between a roll and other object and a measuring method for accurately centering roll group used in manufacturing and processing film and the like. <P>SOLUTION: The roll distance measuring method is characterized by measuring distance between the roll and the object by that the inner surface of the jig for measuring distance between the roll and the object having a support (1) having two contact surfaces contacting with two lines on the roll surface in parallel to the axis of one roll, a rod-like body (2) extended from the support toward the other object (for example, a roll) and a micro-displacement gauge (for example, a dial gauge) (3). and the support of the jig and one roll surface contact with two lines and that the measuring end of the micro-displacement gauge contact the surface of the other object (for example, the roll). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a jig for measuring a distance between a roll used for manufacturing and processing a belt-shaped film and an object such as another roll, and a method for measuring a distance between the roll and the object using the jig.
[0002]
[Prior art]
Rolls are an indispensable element in various processes such as production of a belt-shaped polymer film, application of other materials to the film surface, lamination of the film, surface processing, and stretching. Generally, a plurality of rolls are used in combination, but when the rolls are not parallel, the thickness of the film becomes uneven, wrinkles occur, the coating thickness becomes uneven, the stretching becomes uneven, etc. Problems arise. In particular, in a film requiring uniformity such as an optical element, strict adjustment of the distance between the rolls, that is, centering of the rolls, because these problems due to the non-parallel rolls greatly affect the quality of the product, is required. It is an important issue. The importance of adjusting the distance between rolls is not only found in the processing of polymer films, but also in the printing industry, papermaking industry, and various processing methods involving rolls as indispensable elements, such as metal rolling. A centering method in roll rolling under high pressure such as metal rolling (for example, see Patent Document 1) has been proposed. However, when a large number of rolls are used at low pressure, such as in the production and processing of a polymer film. Requires a simpler method. Although a method using a tape measure is used on site, the accuracy is poor, and the tape measure has to be wound around a roll, which is inconvenient.
[0003]
[Patent Document 1]
JP-A-8-103808
[Problems to be solved by the invention]
An object of the present invention is to provide a jig and a method for easily and precisely measuring a distance between a roll and an object and centering the roll.
[0005]
[Means for Solving the Problems]
A first aspect of the present invention is a support (1) having two surfaces that can make two-line contact with the roll surface in parallel with the axis of one roll, and a rod-shaped extension from the support toward the other object. The present invention relates to a jig for measuring the distance between a roll and another object, comprising a body (2) and a minute displacement meter (3) provided at the tip of the rod-shaped body.
[0006]
According to a second aspect of the present invention, in the jig for measuring the distance between the first roll of the present invention and another object, the minute displacement meter is selected from any of a dial gauge, a laser displacement meter, and an eddy current displacement meter. It is related to a jig that is a conventional jig.
[0007]
A third aspect of the present invention relates to a jig for measuring a distance between the first or second roll of the present invention and another object, wherein the object is another roll.
[0008]
A fourth aspect of the present invention is a support (1) having two surfaces capable of making two-line contact with the roll surface in parallel with the axis of one roll, and a rod extending from the support toward the other roll. (2) Two-line contact between the inner surface of the support of the jig for measuring the distance between the roll having the micro-displacement gauge (3) provided at the tip of the rod and another object and the surface of one of the rolls The present invention also relates to a method for measuring the distance between a roll and an object by measuring the distance from the roll to the object by bringing the measuring end of the micro displacement meter into contact with the surface of the other object (6). .
[0009]
A fifth aspect of the present invention relates to the method according to the fourth method of the present invention, wherein the micro displacement meter is selected from a dial gauge, a laser displacement meter, and an eddy current displacement meter.
[0010]
A sixth aspect of the present invention relates to the method according to the fourth or fifth aspect, wherein the object is another roll.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view of an example of a jig for measuring a distance between a roll and an object according to the present invention. In FIG. 1, 1 is a support, 2 is a rod extending from the support toward the other roll, and 3 is a minute displacement meter (for example, a dial gauge is fixed to the tip of the rod by a clamp 4 or the like). 5) is a measuring end of a minute displacement meter (a dial gauge as an example). FIG. 2 is a schematic view showing an example of the method for measuring the distance between a roll and an object according to the present invention. In FIG. 2, 1 is a support, 2 is a rod extending from the support toward the other object (roll or the like), and 3 is a minute displacement meter (fixed to a tip of the rod by a clamp 4 or the like). A dial gauge is shown as an example), 5 is a measuring end of a micro displacement gauge (a dial gauge as an example), 6 is a roll, 7 is another object (a roll is shown as an example), and 61 and 62 are the supports. This is the place where the roll 6 is in contact with two lines. As a minute displacement meter, a laser displacement meter, an eddy current displacement meter, or the like can be applied in addition to the dial gauge shown as an example.
[0012]
The support (1) has two faces (11 and 12) which can make two-line contact parallel to the axis of the roll. The surface may be either a flat surface or a curved surface, but is preferably a flat surface. The two surfaces are preferably widened at a fixed angle toward the side contacting one of the rolls. 1 and 2, a gable roof type support is shown, but the gable roof type ridge may be flat.
[0013]
It has a rod-shaped body (2) extended in the direction opposite to the expanding side of the support (1), that is, in the direction toward the other object (another roll). The direction of extension of the rod divides the angle between the two expanded surfaces of the support into two equal parts, and when the support is brought into two-line contact with the roll, the direction of the rod intersects the center axis of the roll. It is preferable to do so. The rod is fixed to the support by welding or screwing. The length of the rod corresponds to the distance between the roll to be measured and the object, but since various combinations of rolls are used on site, various types of rods with a length corresponding to the various roll-to-roll distances are used. Or by connecting a plurality of rods to a predetermined length.
[0014]
The micro displacement gauge (3) is attached to the tip of the rod by a fixture such as a clamp (4). The measurement accuracy of the minute displacement meter can be appropriately used in the range of 1/100 millimeter to 1/1000 millimeter per scale.
[0015]
A method of measuring the distance between the roll and the other object such as the other roll by using the distance measuring jig between the roll and another object will be described with reference to FIG. First, when the support (1) is pressed against a surface of an appropriate portion (for example, the left end) of one roll (6), two surfaces (11 and 12) of the support are two lines parallel to the axis of the roll (6). (61 and 62) contact the roll surface. The measuring end (5) of the micro-displacement gauge (3) (an example of which is shown as a dial gauge) fixed to the tip of the rod (2) is connected to the rod (6) and the roll (6) and another object (7). (2) The surface of the other roll (7) is brought into contact with the surface of the other roll (7) so as to be on a line connecting the center lines of the rolls (shown as an example). Then, the numerical value of the minute displacement meter (dial gauge) is read. The centering work is performed by adjusting the positions of the screw shafts of the two rolls so that there is no difference between the two read values.
[0016]
【The invention's effect】
According to the jig and method of the present invention, using a simple jig, the distance between the roll and other objects can be measured with an accuracy of 0.01 mm to 0.001 mm, which is the measurement accuracy of the micro displacement meter, The centering of the roll can be achieved with the same accuracy based on the measured values. It is now possible to easily perform high-precision roll centering work at a manufacturing site. Using the group of rolls thus centered, a product free of wrinkles and defects can be obtained.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of an example of a jig for measuring a distance between a roll and another object according to the present invention.
FIG. 2 is a schematic diagram showing an example of a method for measuring the distance between a roll and another object according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Support body 2 ... Bar-shaped body 3 ... Micro displacement meter 4 ... Fixture 5 ... Measuring end 6, 7 ... Roll 11, 12 ... Expanding surface 61, 62 of support body ... Line contact site

Claims (6)

A support (1) having two surfaces that can make two-line contact with the roll surface in parallel with the axis of one roll, a rod (2) extending from the support toward the other object, and the rod A jig for measuring the distance between a roll and an object, comprising a minute displacement meter (3) provided at the tip of the body. The jig according to claim 1, wherein the minute displacement meter is selected from a dial gauge, a laser displacement meter, and an eddy current displacement meter. 3. The jig according to claim 1, wherein the object is another roll. A support (1) having two surfaces that can make two-line contact with the roll surface in parallel with the axis of one roll, a rod (2) extending from the support toward the other object, and the rod The inner surface of the support of the jig for measuring the distance between the roll having the micro-displacement gauge (3) provided at the tip of the body and the object and the surface of one of the rolls make two-line contact, and the measurement end of the dial gauge is connected to the other end. A distance between the roll and the object by measuring the distance between the roll and the object by contacting the object. 4. The method according to claim 3, wherein the minute displacement meter is selected from a dial gauge, a laser displacement meter, and an eddy current displacement meter. The jig according to claim 4 or 5, wherein the object is another roll.

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