JPH07280546A - Roll crown measuring apparatus - Google Patents

Abstract

PURPOSE:To enable the measuring of a value of a crown with all rolls mounted on a calender device by mounting removably a linear guide member at a position slightly away from the side of a roll shell part parallel with a roll shaft. CONSTITUTION:While all rolls 01 are mounted on a calender device, a long-sized linear guide member 1 made up of a square pipe made of iron or the like is mounted on the surfaces of both end parts 04 of a roll shell part 02 with an L-shaped member 2 formed at both the end parts through a V-shaped block 11 at a position slightly away the side of the roll shell part 02 parellel with a roll shaft. Then, the levelness of the member 1 is made to match the levelness of the rolls 01 with a press bolt 20 and the tip of a contact of a sensor mounted on a guide block 5 is adjusted to contact the surface of the shell part 02 over the entire length and a displacement value (crown value) of the surface of the shell part 02 is recorded as shown per unit on a graduation 3 inscribed into the member 1 moving the sensor in the direction of the axis line of the shell part 02.

Description

Detailed Description of the Invention

[0001]

[Field of Industrial Application] A field relating to an instrument for measuring the amount of crown of a roll body in a calendering device or the like for obtaining an accurate thin sheet by rolling a rubber, a plastic, a steel or a non-ferrous metal.

[0002]

2. Description of the Related Art When rubber or plastic, or steel or non-ferrous metal is rolled to form a highly accurate thin sheet, for example, it is made by passing it between rolls of a calendar device. At this time, a large force is applied to the roll, but since the roll is rotatably supported by bearings only at the left and right ends, the roll is in the opposite direction in which a force is applied like a bow, that is, the opposite of the sheet being processed. Bends in the direction. The shape of this bending is called the bending curve of the roll. Since the roll bends in this way, if the roll body is a parallel roll having the same diameter in the longitudinal direction of the roll, when the thickness of the thin sheet that is rolled is viewed in the width direction, the roll is Under the influence of bending like a bow, it becomes thickest in the center and becomes thinner as it approaches both ends.

Therefore, even if the roll bends like a bow, the diameter of the roll body is changed in advance so that the thickness of the thin sheet to be rolled is uniform in the width direction. A sheet having a uniform thickness can be obtained by making the diameter the largest in the central portion of the direction and decreasing the diameter toward both ends so as to form a shape corresponding to the bending curve of the roll. A roll in which the central portion of the roll body swells is called a crown roll, and the shape of the bulge of the roll body is called a crown curve of the roll body. A roll crown measuring device measures the amount of bulge of the roll body, that is, the amount of change in the radius or diameter of the roll body in the longitudinal direction of the roll.

Conventionally, a roll crown measuring device called a roll caliper is generally widely known. This roll caliper is a so-called saddle type, and the amount of crown of the roll body is measured as follows. A saddle, which is a roll caliper main body in which four small wheels are provided in parallel to the square of the horizontal plane, is mounted on the uppermost surface of the horizontal roll body where the crown amount is to be measured. It's like putting in a right angle, that is, putting a saddle on the back of a horse. Therefore, if this saddle seat is pushed in the roll length direction, the roll caliper main body moves in the roll length direction on the uppermost part of the surface of the roll body. In this roll caliper main body, two rods are provided in a left and right downward direction in a V shape so as to spread in a straight line across the roll body in a direction orthogonal to the roll axis. A dial gage is provided on one side of the two rods at a position just beside the axial center of the roll body where the crown amount is to be measured, and a screw with a protruding tip is provided on the other side of the rod. The tip of the contact of the dial gauge is brought into contact with the surface of the roll body, and the tip of the screw is brought into contact with the surface of the roll body. Therefore, by reading the scale of the dial gage while pushing the roll caliper main body in the roll length direction, the amount of change in the diameter of the roll body can be known over the entire length in the roll length direction. And if you draw a graph on the vertical axis that corresponds to the roll body position on the horizontal axis, showing the amount of change in the diameter of the roll body over the entire length in the roll length direction, you cannot know the absolute diameter, It becomes the crown curve of the part, and the state of wear on the surface of the roll body can be seen at a glance.

However, in order to measure the crown amount of the roll body by using this roll caliper, the height of the roll caliper body is about 20 cm from the uppermost part of the surface of the roll body, and the aforementioned Similarly, since the two rods extend in a V shape so as to spread from the roll caliper body to the lower left and right over the roll body, the roll is measured from the top of the surface of the roll body to be measured. Space for passing in a straight line to the right and left lateral sides of the axis of the body, and at the position corresponding to the side of the axis of the roll body of the two rods, the space for the dial gauge on one side. , The other side needs a space for the above-mentioned thread. In other words, when you look at the circular section of the roll body where you want to measure the crown amount, you can install and use the roll caliper if there is no significant space around the roll body from the top of the circular section to the sides of the rolls. Absent. Therefore, in order to measure the crown amount of the roll body by using the roll caliper which is the conventional technique, there are the following problems.

[0006]

For example, in order to obtain a highly accurate thin sheet-like product for a long period of time by rolling a rubber, a plastic, a steel or a non-ferrous metal by using a calendering device, Periodically, for example, once every 3 to 6 months, by measuring the amount of change in the diameter of the roll body of the calendar roll over the entire length in the axial direction of the roll,
Check the wear condition of the surface of the roll body and, when this wear amount exceeds the control limit, replace the roll or polish the surface of the roll body so that the wear amount falls within the control limit. Have to manage.

Conventionally, the amount of change in the diameter of the roll body of the calender roll is regularly measured by using a roll caliper at night or on Sunday when the calender device is idle. . At this time, the calendering device has two calendering devices consisting of two calendering rolls, three calendering devices consisting of three calendering rolls, and four calendering devices consisting of four calendering rolls. There is a calendar device,
Most of these calendar rolls are arranged vertically. Then, the number of all the calender rolls constituting one calender device, that is, if the calender device is three calender rolls, the amount of change in radius or diameter of the roll body of three calender rolls is spread over the entire length in the roll length direction. Need to measure.

However, as described above, in order to measure the crown amount of the roll body using the roll caliper, a considerable space is required above and laterally around the roll body. However, in the 2 to 4 calender device in which most of the rolls are arranged in the vertical direction, there is no space for installing the roll caliper only in the top roll, and the other rolls have a crown amount. Could not be measured, which was a major obstacle. Therefore, in this case, a method of removing the roll from the calender device and measuring the crown amount of the roll body can be considered, but in the case of the remaining roll that cannot be measured, that is, in the case of the three-roll calender device, the remaining two other than the top roll are used.
It is a heavy work and not possible for anyone to remove the two rolls and measure the crown amount of the roll body, and then re-incorporate the two rolls into the original calender device. It was impossible in practice because it required man-hours.

Therefore, an object of the present invention is to solve the problem that the crown amount of the roll body of the remaining rolls other than the top rolls constituting the calendering device cannot be measured. For fixing the guide member and the guide member on either side of the roll body as viewed in the axial direction of the roll, even if there is no space on the upper surface of all the roll bodies while the roll is still attached to the roll body. It is an object of the present invention to provide a roll crown measuring instrument, which is an excellent invention capable of measuring the amount of displacement, that is, the amount of crown of the roll body surface of all rolls if there is a little space for mounting the mounting jig.

[0010]

In order to solve the above problems and achieve the object, in order to solve the above problems, they are arranged parallel to the roll axis and slightly separated laterally from the surface of the roll body when viewed in the roll axis direction. A long guide member arranged at a position, and a pair of mounting jigs for detachably fixing both ends of the guide member to corresponding ends of the roll body in the arranged state,
A roll crown measuring instrument may be provided which comprises a sensor that moves along the guide member in parallel with the roll axis to measure the amount of displacement of the surface of the roll body. Further, if it is set forth in claim 2, it becomes more effective.

[0011]

The linear guide member, which is parallel to the roll axis and is located in the lateral direction slightly away from the surface of the roll body, has one end on the side surface of one end of the roll body and the other end on the side of the roll body. The above member can be detachably fixed to the side surface of the other end thereof through a mounting jig so that the member is parallel to the roll axis. Therefore, the guide member is mounted via the mounting jig when the calender device or the like is finished and is idle, and is removed during the operation of the calender device or the like. Further, the roll crown measuring device of the present invention has a long guide member, which is a main component, mounted on one side of either side when viewed in the axial direction of the roll body, so as to move to the opposite sides of both sides. Does not require installation. Also, no space is required above the roll body. Therefore, according to the roll crown measuring device of the present invention, there is no hindrance to the operation of the work of the calender device or the like, and the crown amount of the roll body can be measured while all the rolls are mounted on the calender device or the like.

A sensor for measuring a roll crown is attached to the guide member through a linear bearing that moves linearly in parallel with the guide member in the longitudinal direction and has a high precision such as a known LM guide. When the sensor is a contact type, the tip of the contact of the sensor is always oriented to the axis of the roll, and the sensor is moved in the roll length direction while being in contact with the surface of the roll body.
Then, the amount of displacement of the radius of the surface of the roll body can be measured over the entire length of the roll body as the contactor goes in and out. This contact type sensor can also be used as a direct reading type inexpensive dial gage or a digital remote display that is easy to see electrically. Since this sensor moves parallel to the roll axis, the amount of displacement of the surface of the roll body indicates the amount of displacement of the radius of the roll body. If the displacement amount is doubled, It is possible to know the amount of displacement of the diameter of the part. Then, if the graph is drawn by plotting the displacement amount of the diameter of the roll body on the vertical axis over the entire length in the roll length direction and corresponding to the position of the roll body on the horizontal axis, the absolute amount of the diameter is unknown, but It becomes possible to obtain the crown curve of the part. If this sensor is a non-contact type, any sensor that measures the distance from the sensor to the surface of the roll body can be used. For example, a light reflection type or an ultrasonic type may be used.

Next, the operation of claim 2 will be described. The V-shaped block of the mounting jig has a V-shaped groove on one surface and the back side thereof is a smooth surface. The pair of V-shaped blocks are pressed against the lateral surfaces of both ends of the roll body with the groove direction of the V-shaped groove parallel to the roll axis to stabilize at two tangents in the roll circumferential direction. As described above, both ends of the guide member are fixed to the smooth surface, which is the back side of the V-shaped groove of each V-shaped block, with bolts or the like. The smooth surface is a surface that is perpendicular to the radial direction of the roll. Also, the parts to which the mounting jigs at both ends of the roll body are attached are the parts that the work piece does not normally touch, so the diameter of the body part of this part is the same as on a new roll. The two mounting jigs, one on the left and one on the right, are made of the same thickness. Therefore, according to the second aspect, it is possible to easily and stably fix the guide member so that the distance from the roll shaft to the guide member is naturally the same in the longitudinal direction. Can be done.

In order to make the roll shaft and the guide member parallel to each other even in the horizontal direction, a well-known level is placed right above the center in the length direction of the roll body to adjust the levelness of the roll. Then, a level is placed on the guide member to measure the levelness of the guide member. Then, the mounting jig fixing both ends of the guide member is provided with a push bolt or the like capable of finely adjusting the levelness of the guide member, and by using this, the levelness of the guide member is set to the levelness of the roll. By aligning them, the roll axis and the guide member can be parallel in the horizontal direction. In this way, the roll axis and the guide member are parallel to each other, and the sensor for measuring the roll crown can be moved parallel to the roll axis.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the whole of the embodiment, and FIG. 2 is a plan view thereof. In FIG. 1, reference numeral 01 is a roll such as a calender device shown by a chain double-dashed line, and mainly the roll body 0
2 and journal section 03. Usually, inside the roll body 02 of the calendar device or the like, although not shown, a large number of small-diameter round holes through which warm water is passed to heat the roll are formed in the circumferential direction near the surface of the roll body 02. Is formed concentrically with the roll axis all around. Therefore, on the end surface 05 of the roll body 02 such as a calendar device,
Rings 06 are fixed to both ends of the inlets and outlets of the many holes as grooves for forming grooves for passages between the holes in the circumferential direction.

Reference numeral 1 is a long linear guide member made of a square pipe made of iron or aluminum, and L-shaped members 2 are fixed to the end faces on both sides of the guide member to form both ends of the guide member 1. . Then, this guide member 1 is arranged so as to be parallel to the roll axis in a lateral direction slightly apart from the surface of the roll body 02.
Both ends 0 of the roll body 02 through the V-shaped block 11
It is detachably fixed to the surface of 4,04. On the upper surface of the guide member 1, a guide rail 4 made of a known LM guide or the like for guiding the roll crown measuring sensor 7 is provided in parallel with the guide member 1 over the entire length. A guide block 5 having a built-in linear bearing can be accurately moved on the rail 4. As shown in a partially enlarged view of FIG. 4, a plate 6 is fixed to the upper surface of the guide block 5 with bolts or the like, and the axis of the contact 8 of the sensor 7 is mounted on the plate 6 so that the roll body 02 The sensor 7 is attached so as to be orthogonal to the roll axis and the tip of the contactor 8 faces the roll axis and contacts the entire surface of the roll barrel 02 at the same time. Therefore, the sensor 7 can measure the displacement amount in the radial direction of the surface of the entire length of the roll barrel portion 02 while performing a highly accurate linear movement in parallel with the upper surface of the guide member 1.

Further, a scale 3 is displayed on the front surface of the guide member 1 in units of, for example, 50 mm over the entire length so that the relationship between the measured value of the sensor 7 and the position of the roll body 02 in the length direction can be understood. This sensor 7 is a lightweight and compact contact type, and adopts a digital remote display type that makes it easy to see measured values.
As shown in FIG. 2, the flexible electric wire 9 connects the sensor 7 and the display unit 10, and the measured value is digitally displayed on the display unit 10. The measured value can be accurately measured in 1/1000 mm unit. ing. Although the sensor 7 is of a contact type in this embodiment, it may be of a non-contact type as described in the description of the operation.

In the present embodiment, except for the sensors such as the guide block 5, the plate 6, the sensor 7, the contact 8, the electric wire 9 and the indicator 10 which are the sensor parts, they are constructed symmetrically with respect to the center line Y. Therefore, in the following description, only one side will be described to avoid duplication. Reference numeral 11 is a V-shaped block, which is shown in FIG.
As shown in FIG. 1, it has a V-shaped groove 12 on one surface.
The V-shaped groove 12 is pressed against the lateral surfaces of both ends 04 of the roll body 02 with the groove direction of the roll parallel to the roll axis, and is fixed by the fasteners 21 so that the V-shaped groove 12 is stabilized at each two tangents in the circumferential direction of the roll. Has been done. Then, the V-shaped block 1 and the fastener 21 constitute an attachment jig 22 for fixing the guide member 1. In addition, the V-shaped groove 12 is pressed against the lateral surfaces of both end portions 04 of the roll body portion 02 and is fixed so as to be stable at each two tangents in the roll circumferential direction.
The smooth surface 13, which is the back surface side, is perpendicular to the radial line connecting the center of the groove and the roll axis. An L-shaped plate 14 is fixed to the smooth surface 13 side, and a U-shaped groove 18 which is a concave groove is formed by the smooth surface 13 and the L-shaped plate 14. The bottom plate 15 of the U-shaped groove 18 and the smooth surface 13 intersect each other at a right angle, and the L-shaped member 2 which is the end of the guide member 1.
When the U-shaped groove 18 is inserted into the U-shaped groove 18, the lower surface 2a of the L-shaped member 2 and the upper surface of the bottom plate 15 of the U-shaped groove 18 come into contact with each other as shown in FIG. Has become stable.

Further, the bottom plate 15 of the U-shaped groove 18 is provided with a bolt 20 in the vertical direction, and by rotating the bolt 20, the horizontal inclination of the guide member 1 can be finely adjusted. There is. When the side surface 2b of the L-shaped member 2 is pressed against the smooth surface 13 side of the V-shaped block 11 with the tips of the two bolts 19 provided on the side plate 17 of the L-shaped plate 14, the L-shaped member 2 is guided. The cross section of 1 in the longitudinal direction is a parallelogram whose surfaces are parallel to the guide member 1, and the smooth surface 13 and the side surface of the L-shaped member 2 are parallel to each other.

The V-shaped block 11 can be fixed by adsorbing itself to the surface of the roll body 02 by embedding an electromagnet in the V-block 11, or by embedding an electromagnet in the V-block 11 itself. As shown in FIGS. 3 to 5, as will be described later, it is fixed to the end 04 of the roll body 02 by interposing a U-shaped fastener 21. To fix the U-shaped fastener 21 to the ring 06, one is to hook the hooking surface 24 of the fastener 21 on the inner diameter side surface of the ring 06 as shown in FIG.
On the other hand, by pushing the outer diameter side surface of the ring 06 with the tips of the two bolts 25 provided on the fastener 21, the ring 0
6 is sandwiched from both sides. The V-shaped block 11 is an L-shaped plate formed integrally with the V-shaped block 11 by pressing the smooth surface 13 toward the surface of the roll body 02 with the tip of the T-bolt 26 provided in the fastener 21. The lower surface 16 of 14 is supported by the upper surface of a receiving plate 27 formed integrally with the fastener 21 and fixed to the end 04 of the roll body 02.

Next, the operation of the embodiment and the method of measuring the crown amount of the roll body will be described. First of all, if the temperature of the roll is high after the roll work of the calender device etc. is completed, after the temperature of the roll falls, all the rolls still attached to the calender device etc. The fastener 21 is attached to the ring 06 fixed to both end surfaces 05 of the roll 02 so as to be lateral to the roll body 02. The side may be on either side when viewed in the axial direction of the roll body 02, and it is sufficient if there is a space for mounting the roll crown measuring device on the side. Next, roll body 0
The V-shaped block 11 is fixed to the surface of the roll body 02 by the tip of the T-bolt 26 of the fastener 21 at the side of both ends 04 of 2. The lower surface 2a of the L-shaped member 2 at both ends of the guide member 1 has a bottom surface 15 of the U-shaped groove 18.
It is attached to the V-shaped block 11 by pressing it with the tip of the bolt 19 so that the side surface 2c contacts the smooth surface 13.

Next, the level of the roll 01 is measured by placing a known spirit level directly above the center of the roll body 02 in the lengthwise direction. Then, a level is placed on the guide member 1 and the levelness thereof is measured. When the two are different in levelness, the levelness of the guide member 1 is adjusted to the levelness of the roll 01 by the push bolt 20 for finely adjusting the levelness of the guide member 1. With the above, preparations for measuring the crown amount of the roll body 02 are completed, but first, while the sensor 7 is manually moved over the entire length of the roll body 02, the value displayed on the display 10 is displayed. Then, it is confirmed whether the tip of the contactor 8 of the sensor 7 is in contact with the surface of the roll body 02 over the entire length. If there is no contact at all, loosen the bolts that secure the sensor 7 and attach the sensor 7 to the roll body 0
It is adjusted so that it comes close to the surface side of 2 and contacts the surface of the roll body 02 over the entire length.

Since the method after this is the same as the known conventional technique, it will be briefly described. While moving the sensor 7 in the axial direction of the roll barrel 02, the displacement amount of the surface of the roll barrel 02 displayed on the display 10 is recorded for each unit of the scale 3, and the horizontal axis indicates the roll barrel 02. A highly accurate curve can be drawn by taking a scale indicating the position in the axial direction of (1) and the vertical axis indicating the amount of displacement of the surface of the roll body 02 measured by the sensor 7 in units of 1/1000 mm. This curve shows the amount of displacement of the radius of the surface of the roll body 02, and is a highly accurate crown curve of the roll body 02. Therefore, by observing the obtained crown curve, it is possible to know whether or not the crown amount is appropriate, and further, where and how much the surface of the roll body 02 is worn.
In addition, according to the measuring instrument of the present invention, not only the crown of the roll is measured, but also the flat surface of the roll, where and how much the surface of the so-called flat roll is worn can be naturally measured. . Therefore, the measuring instrument of the present invention can be applied not only to the rolls mounted on the calender device but also to the rolls mounted on any device.

Next, the effect of the embodiment will be described. As is obvious from what has been described above, according to the embodiment of the present invention, with the roll still attached to the apparatus, the measuring device is provided on either side when viewed in the roll axial direction of the roll barrel. If there is some space for mounting, the amount of displacement of the roll body surface of all rolls, that is, the amount of crown of the roll body surface can be measured. Furthermore, the amount of wear on the surface of the roll body can be measured in relation to the position in the length direction of the roll body.
As a result, the amount of wear on the surface of the roll body can be easily known without removing the roll from the apparatus, and high-quality roll maintenance can be regularly performed. Then, it becomes possible to stop the production of a poor quality thin sheet-like work piece at an early stage, and to prevent the quality from deteriorating.

[0025]

According to the present invention, even if there is no space on the upper surface of all the roll barrels while the rolls are still attached to the apparatus, one of them is viewed in the roll axial direction of the roll barrels. If there is a little space for mounting the measuring instrument of the present invention on the side of the above, the amount of displacement, that is, the amount of crown of the roll body surface of all rolls can be measured. Therefore, the amount of crown of the roll body can be regularly grasped, high quality rolls can be maintained and managed, and the quality control of the workpiece can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing an entire measuring device.

FIG. 2 is a plan view showing an entire measuring device.

FIG. 3 is an enlarged front view in which an end portion of FIG. 1 is enlarged.

FIG. 4 is an enlarged plan view in which an end portion of FIG. 2 is enlarged.

5 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

01: Roll 02: Roll body part 03: Journal part 04: End part (of roll body part) 05: End surface (of roll body part) 06: Ring 1: Guide member 2: L-shaped member 2a: (of L-shaped member) ) Lower surface 2b: Side surface (of L-shaped member) 2c: Side surface of (L-shaped member) 3: Scale 4: Guide rail 5: Guide block 6: Plate 7: Sensor 8: Contact (of sensor) 9: Electric wire 10: Indicator 11: V-shaped block 12: V-shaped surface 13: Smooth surface 14: L-shaped plate 15: Bottom plate (of U-shaped groove) 16: Lower surface (of L-shaped plate) 17: Side plate (of L-shaped plate) 18: U Groove 19: Bolt 20: Push bolt 21: Fastener 22: Mounting jig 24: Hooking surface 25: Bolt 26: T bolt 27: Catch plate Y: Center line

Claims (2)

[Claims] 1. A long guide member arranged parallel to the roll axis and at a position laterally slightly separated from the surface of the roll body when viewed in the roll axis direction, and the guide member in the arranged state. A pair of attachment jigs for detachably fixing both ends of the roller body to corresponding ends of the roll body, and a displacement amount of the surface of the roll body by moving in parallel with the roll axis along the guide member. A roll crown measuring instrument, comprising: a sensor for measuring. 2. The end of the roll body is configured such that the mounting jig stabilizes a V-shaped block having a V-shaped groove on one surface by pressing the V-shaped groove against the surface of the roll body. The roll crown measuring device according to claim 1, wherein the end portion of the guide member is fixed to a smooth surface on the back side of the one surface of the V-shaped block with a fastener.