TW202212022A - Horizontal leveling maintaining device for carriage of vertical looper - Google Patents

Abstract

The invention provides a horizontal leveling maintaining device for a carriage of a vertical looper being capable of keeping a horizontal posture of carriage highly precise, finely and continuously both in standstill condition and during up and down operations. A vertical looper 1, in which a strip 2 is wounded around to lower rolls 4 and upper rolls 6 alternately, the lower rolls being on a fixed bed 3, and the upper rolls being on a carriage 5 which is hanged and moved up and down directions by means of first and second chains 7 and 8, includes a jack 22 provided between the carriage and the first chain and stroked in the hanging direction for adjusting a hanging height of the carriage; a target 25 for measuring a distance provided vertically along an operative up and down directions of the carriage; upper and lower displacement measurement sensors 26 and 27 mounted on the both of upper and lower sides of the carriage and measuring distances in horizontal direction to the target, respectively; and a controller 28 receiving the horizontal distances from the sensors and operating the jack so as to be the both horizontal distances equal.

Description

Horizontal maintenance device for carrier platform of vertical circulator

The present invention relates to a carrier platform level maintaining device for a vertical circulator, which can be controlled to maintain the posture of the carrier platform in a horizontal state with high precision, precision and continuous regardless of whether it is in a stopped state or in a lifting action. .

Patent Documents 1 to 4 are known technologies relating to a vertical circulator constructed by alternately wrapping a strip-shaped material between a fixed roller and a moving roller, wherein the fixed roller The set of rollers is arranged on the fixed bed, and the set of moving rollers is arranged on a stage which is suspended by a suspending material and performs an ascending and descending operation. The "method and device for correcting the meandering of a metal strip" of Patent Document 1 is constituted by installing a meandering amount detection device (edge position detector) of a steel strip on at least one of the inlet side and the outlet side of a vertical circulator device. ), and the four wire ropes hanging on the circulator platform are connected to each reel and motor to adjust the length respectively.

"Measurement method for levelness of platform in vertical circulator equipment and method for correcting meandering of steel belt" of Patent Document 2 uses an optical distance meter to measure levelness (abnormal amount of levelness) of the platform of the circulator, And measure the offset (snake amount) of the steel strip. If the meandering amount exceeds the allowable range, change the level of the circulator carrier to be within the allowable range, and control the meandering amount of the steel strip within the allowable range.

The optical rangefinder is installed on the fixed table, and measures the distance in the height direction from the fixed table to the circulator carrying table that is raised and lowered.

The "Inclination Measuring Device of a Vertical Circulator" of Patent Document 3 includes: a reflecting mirror installed on a stage; a light emitting device that vertically irradiates the reflecting mirror with light for angle detection; and a light receiving device that receiving light for angle detection reflected by the reflector; and a calculation unit for calculating the inclination of the carrier based on the detection distance between the light-emitting position and the light-receiving position of the light, and the distance between the light-emitting device and the reflecting mirror Therefore, the inclination of the carrier can be detected with high precision, and the meandering of the belt caused by the inclination of the carrier can be prevented in advance.

The light-emitting device and the light-receiving device are installed on the ground, and the inclination state of the carrier is measured by the distance in the height direction from the ground to the reflector installed on the circulator carrier which is raised and lowered.

"Inclination detection method of vertical circulator" of Patent Document 4 is a method of measuring the inclination of a carrier of a vertical circulator installed in a tape production line. A part and a fixing part located at a position opposite to the two end parts are arranged with sensors that can simultaneously sense left and right when the carrying platform is in a horizontal position, and the speed of the lifting movement of the carrying platform during measurement is the same as the above-mentioned The sensing time difference of the left and right sensors is accumulated to detect the tilting state of the carrier, or it can be obtained by accumulating the up-and-down movement speed of the carrier during the measurement and the sensing time difference of the left and right sensors. The value obtained by subtracting the vertical movement speed of the platform when it is horizontal and the sensing time difference between the left and right sensors is accumulated to detect the tilting state of the platform.

However, this is for detecting the inclination state of the carrier at an arbitrary height position (sensor installation position) during the lifting motion. [Prior Art Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 8-267139 Patent Document 2: Japanese Patent Laid-Open No. 2012-223771 Patent Document 3: Japanese Patent Laid-Open No. 10-156435 Patent Document 4: Japanese Patent Laid-Open No. 4-59122

(The problem that the invention intends to solve)

Patent Document 1 is used to measure the position of the edge of the steel strip, instead of directly detecting the levelness of the circulator carrier, and the meandering correction is performed by feedback control, so the operation is uncertain.

In Patent Document 2, since the measurement distance by the optical distance meter is very long, satisfactory measurement accuracy cannot be ensured, and it is difficult to cope with high-precision and precise control.

In Patent Document 3, the measurement distance by the light emitter, the light receiver, and the reflection mirror is very long, and satisfactory measurement accuracy cannot be ensured, so it is difficult to cope with high-precision and precise control.

In Patent Document 4, the inclination of the stage can only be measured at the installation position of the sensor, and the inclination state of the stage in the raising and lowering cannot be continuously corrected.

The present invention has been accomplished in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a platform level maintaining device for a vertical circulator, which can be controlled with high precision and high accuracy regardless of whether it is in a stopped state or during an ascending and descending operation. Precisely and continuously maintain the posture of the carrier platform in a horizontal state. (Technical means to solve problems)

The vertical circulator of the present invention is characterized in that: the vertical circulator is formed by alternately winding the strip-shaped material on the first roller and the second roller. The first roller train is arranged on the fixed bed, the second roller train is arranged on a platform that is suspended by a suspending material and moves up and down, and the platform level maintaining device of the vertical looper is provided with: adjustment A means is provided between the above-mentioned carrying platform and the above-mentioned hanging material, and performs a stroke action along the hanging direction to adjust the hanging height position of the hanging platform; the object to be measured is along the above-mentioned carrying platform. The up-and-down movement direction is vertically installed; the upper displacement measurement sensor is mounted on the upper side of the raised and lowered platform, and measures the first horizontal distance to the object to be measured; the lower displacement measurement sensor, It is mounted on the lower part side of the above-mentioned platform that is raised and lowered, and measures the second horizontal distance to the above-mentioned object to be measured; The first horizontal distance and the above-mentioned second horizontal distance are controlled to be equal distances, and the above-mentioned adjusting means is actuated.

The present invention is characterized in that the second roller train is installed on the carrier with the roller axis facing the width direction of the carrier, and the first horizontal distance and the second horizontal distance are measured in the width direction of the carrier. .

The present invention is characterized in that the system to be measured is formed by a wire whose upper end is connected to a frame supporting the hanging material, and a weight that is connected to the lower end of the wire and tensions the wire straight in the vertical direction.

The present invention is characterized in that the above-mentioned system to be measured is vertically installed on a plate of a frame supporting the above-mentioned hanging material.

The present invention is characterized in that the lower part of the object to be measured is immersed in an oil tank in order to stop the vibration.

The present invention is characterized in that the above-mentioned system to be measured is vertically installed on a column member of a frame supporting the above-mentioned hanging material.

The present invention is characterized in that an additional upper displacement measuring sensor is mounted on the upper side of the ascending and descending platform, and the additional upper displacement measuring sensor is located at the position of the platform along the arrangement direction of the second rollers. In the longitudinal direction, the third horizontal distance to the object to be measured is measured, and an additional lower displacement measuring sensor is mounted on the lower side of the lifting platform, and the additional lower displacement measuring sensor is attached to the platform In the longitudinal direction, the fourth horizontal distance to the object to be measured is measured. In addition to making the first and second horizontal distances equidistant, the controller also measures the displacement from these additional parts. The adjustment means is actuated in such a way that the third horizontal distance and the fourth horizontal distance input by the sensor and the additional lower part displacement measuring sensor are equal distances. (Compared to the efficacy of the prior art)

In the carrier level maintaining device of the vertical circulator of the present invention, the attitude of the carrier table can be maintained in a horizontal state with high precision, precision, and continuous regardless of whether it is in a stopped state or during a lifting operation.

Hereinafter, a preferred embodiment of the device for maintaining the level of the platform of the vertical circulator according to the present invention will be described in detail with reference to the accompanying drawings. The vertical circulators are installed on the inlet side and the outlet side of the production line for strip-shaped materials such as metal strips, respectively.

As shown in FIGS. 1 and 2 , the vertical circulator 1 includes, as known in the art, a plurality of lower rollers 4 serving as first rollers, which are pivotally supported rotatably and arranged side by side. On the fixed bed 3; and a plurality of rollers 6 as the second rollers, which are pivotally supported rotatably, and are arranged in parallel on the carrier platform 5 above the fixed bed 3, and by belt-like The material 2 is alternately wound on the lower roller 4 and the upper roller 6 in the direction of the arrangement of the rollers 4 and 6, so that the carrier platform 5 moves up and down relative to the fixed bed 3 to adjust the upper roller 6 and the lower roller The interval between the wheels 4 makes it possible to perform acceleration/deceleration or stop of the speed of the inlet side and the outlet side without stopping the production line.

In the present embodiment, the case where the lower roller 4 is a fixed roller and the upper roller 6 is a moving roller for raising and lowering is described below as an example, but of course the lower roller 4 may also be a moving roller. The upper roller 6 is a fixed roller.

Both the stage 5 and the fixed bed 3 are formed in an elongated rectangular shape in plan view. The stage 5 is supported at four points by means of hanging materials such as chains 7 and 8, which will be described later, or wire ropes, so that a horizontal posture can be obtained.

The hanging materials 7 and 8 are supported by the top part 10 of the three-dimensional frame 9 constituting the vertical circulator 1 . The three-dimensional frame 9 is constituted by using four pillars 11 to support the four corners of the top 10 so as to surround the carrier 5 and the fixed bed 3 , and is assembled and installed on the machine table 12 on which the fixed bed 3 is installed.

The plurality of upper rollers 6 and lower rollers 4 are arranged in the longitudinal directions along the long sides of the carriage 5 and the fixed bed 3 .

Referring to FIG. 3 , the elevating mechanism of the stage 5 when the hanging materials 7 and 8 are chains will be outlined. FIG. 3(A) is a top view of the top 10 , FIG. 3(B) is a cross-sectional view of the arrow along the line B-B in FIG. 3(A) , and FIG. 3(C) is a line between C-C in FIG. Cross-section of arrows.

The elevating mechanism of the stage 5 includes: a drive motor 13 provided at the center of the top 10; The speed is reduced and transmitted to the rotating shaft system 14 which is continuously arranged in the length direction of the carrier platform 5 in a series through the coupling 41; a set of the first sprocket 17 and the second sprocket 18 of the same size are arranged at the top 10, and in the vicinity of each bearing member 16 supporting the two ends of the rotating shaft system 14, the two ends of the rotating shaft system 14 are connected to each other in a mutually adjacent arrangement, and are directed in the same direction at the same speed by the rotating shaft system 14 The first chain 7 and the second chain 8 that are respectively wound are driven at a constant speed by being rotated and driven; the two third sprockets 20 are arranged opposite to the first sprockets 17 and pass through the bearings. The member 19 is rotatably supported on the top 10 and is guided from the first chain 7 around which the first sprocket 17 is wound; , and connect each end of the first chain 7 and the second chain 8 .

The weight 21 is used to reduce the necessary power required for the lifting action of the carrier 5 and prevent the chains 7 and 8 from floating.

On the stage 5, the other ends of the two first chains 7 are connected to the other end portions of the two first chains 7 at intervals in the longitudinal direction on one side in the width direction, and on the other side in the width direction, with By connecting the other ends of the two second chains 8 at intervals, the stage 5 is supported by the four chains 7 and 8 at four points.

The four points of the hanging points are preferably four corners of a rectangular shape having the width direction of the stage 5 as the short-side direction.

In the case where the hanging materials 7 and 8 are wire ropes, pulleys are used instead of the sprockets 17 , 18 and 20 .

For example, when the drive motor 13 is driven to rotate forward, the pair of first and second sprockets 17 and 18 are driven to rotate forward in the same direction, and each of the third sprockets 20 is also driven forward through the first chain 7 in the same direction. Then, the first and second chains 7 and 8 pull the weight 21 upward at one end of the chain, while the carriage 5 is lowered at the other end. On the other hand, when the driving motor 13 is driven in reverse rotation, the The first to third sprockets 17, 18, and 20 are all driven to rotate in opposite directions in the same direction, and the first and second chains 7, 8 hang down the weight 21 at one end of the chain, and make the carriage 5 at the other end. The lifting action is performed by hanging up.

In addition, instead of this mechanism, a hoist (not shown) may be used to wind up or wind down the hanging material such as steel wire in place of the chains 7 and 8 .

An adjustment means 22 is mounted on the stage 5 , and the adjustment means 22 is operated in a stroke in the hanging direction by the chains 7 and 8 to adjust the hanging height position of the stage 5 to be hung.

In this embodiment, the case where the adjustment means 22 uses a jack is exemplified, and the adjustment means 22 is provided between the other end of the first chain 7 and the stage 5 . However, the adjustment means 22 is not limited to a jack, and may be any means as long as it can be operated by a stroke in the hanging direction.

The jack 22 of the illustrated example is a well-known screw jack, which uses a motor-driven screw mechanism 23 to generate a stroke of in and out (exposed and submerged) on the rod 24, and a part of the screw mechanism 23 is mounted on the carriage 5, The rod 24 is connected to the first chain 7 .

When the hanging state of the stage 5 by the first chain 7 and the second chain 8 is constant, when the rod 24 has an exposed stroke, the hanging state on the first chain 7 side with respect to the second chain 8 side The suspension height position of the stage 5 becomes lower, and conversely, when the rod 24 has a submerged stroke, the suspension height position of the stage 5 becomes higher, so that even when the first and second chains 7 and 8 are used for carrying, When the platform 5 is not hung horizontally, the travel of the jack 22 can still be adjusted, and the platform 5 can be suspended in a horizontal position by the chains 7 and 8 .

Adjustment means 22 such as jacks can also be provided between the second chain 8 and the platform 5 instead of the first chain 7 .

In the vertical circulator 1, since a plurality of the roller shafts 6a of the upper rollers 6 are arranged in the longitudinal direction of the carrier table 5 and the roller shafts 6a are provided so as to face the width direction of the carrier table 5, the carrier The width direction of the table 5 is inclined to cause meandering of the strip material 2 , so it is necessary to maintain the horizontal posture of the carrier table 5 in the width direction of the carrier table 5 (refer to FIGS. 1 and 2 ). In other words, it is required that the stage 5 is not inclined in the width direction.

In the width direction of the stage 5, as a structure for detecting the hanging posture of the stage 5 and maintaining the horizontal orientation, it is provided with: a distance measurement target 25 as a measurement object; displacement measurement sensors 26, 27 , which are mounted on the upper and lower sides of the stage 5 ; and the controller 28 , which controls the operation of the jack 22 based on detection signals from the displacement measuring sensors 26 and 27 .

As shown in FIGS. 1 and 2 , the distance-measuring target 25 is vertically installed along the ascending and descending direction of the carriage 5 from the top 10 side of the three-dimensional frame 9 toward the fixed bed 3 side. The distance measuring target 25 is arranged adjacent to the displacement measuring sensors 26 and 27 so as not to interfere with the raising and lowering motion of the carrying table 5 or the strip material 2 , and is provided around the carrying table 5 .

When the four-point stage 5 is suspended, two distance-measuring targets 25 are provided in order to control the posture. In the present embodiment, displacement measuring sensors 26 and 27 are provided on both ends of the carriage 5 in the longitudinal direction, respectively corresponding to the two sets of displacement measuring sensors 26 and 27. Two distance-measuring targets 25 are provided on both end portions in the longitudinal direction of the stage 5 .

In the case where the displacement measuring sensors 26 and 27 are provided on both sides in the width direction of the stage 5 , two distance measuring targets 25 may be provided on both sides in the width direction of the stage 5 .

The distance measuring target 25 shown in the figure includes: a wire 30 such as steel wire, the upper end of which is connected to the top 10 of the three-dimensional frame 9 supporting the chains 7 and 8 via a hanging base 29; and a counterweight 31, which is connected with The lower end of the wire member 30 is connected, and the wire member 30 is pulled straight in the vertical direction in order to draw the wire member 30 downward.

In order to prevent the wire 30 from vibrating, the counterweight 31 , which is a portion below the distance measuring target 25 , is immersed in an oil tank that fills the container 32 provided on the fixed bed 3 side with oil. Even if the counterweight 31 is moved by an external force or the like, it is returned to a certain position due to the damping effect in the oil tank, and the vertical arrangement of the wire 30 is stably maintained.

As shown in FIGS. 1 to 5 , the upper displacement measurement sensor 26 and the lower displacement measurement sensor 27 are provided in pairs on the stage 5, and the upper displacement measurement sensor 26 is attached to the stage On the upper surface 5a of the stage 5, the lower displacement measuring sensor 27 is mounted on the lower surface 5b of the stage 5.

These displacement measuring sensors 26 and 27 emit laser light L from the light projecting portion 33 toward the adjacent distance measuring target 25 in the width direction of the stage 5 , and the light receiving portion 34 receives the reflection from the distance measuring target 25 The horizontal distances D1 and D2 to the target 25 for distance measurement are measured from the laser beam L in the width direction of the stage 5 .

Specifically, it is preferable that these upper and lower displacement measuring sensors 26 and 27 are installed toward the carrier platform 5 in a horizontal state in which the carrier platform 5 is not inclined, and the displacement measuring sensors 26 and 27 The position of the light-receiving portion 34 is located at the same position in the vertical direction, and is located at a position equidistant from the wire 30 of the distance-measuring target 25 in the horizontal direction.

However, when these displacement measuring sensors 26 and 27 measure the relative position change (change in distance) with the distance measuring target 25, that is, the displacement generated between the two, as long as the measurement relative to The displacement is the increase or decrease of the reference distance, and it does not necessarily need to be installed as above.

The inventors have conducted experiments and reviews on sensors using laser light and found that if such sensors are affected by ambient disturbances such as temperature, external disturbance light, dust, etc., measurement errors are likely to occur, and the longer the measurement distance The longer the error, the greater the error. For example, when a sensor is fixed on the side of the fixed bed 3 and the height distance from the sensor to the stage 5 which is raised and lowered in the vertical direction is measured, the error will increase as the measurement distance becomes longer. big.

In the present embodiment, regardless of the height position of the stage 5 that performs the lifting and lowering operation, the displacement measurement sensor 26 and 27 are used to shorten the distance measured by the displacement measurement sensor. The devices 26 and 27 are installed on the stage 5 , and the object to be measured by the displacement measuring sensors 26 and 27 is a distance measuring target 25 vertically installed along the lifting direction of the stage 5 .

Therefore, if the distance measuring target 25 is provided near the stage 5, that is, near the displacement measuring sensors 26 and 27, the distance can be approximately the same in a short distance regardless of the height position of the stage 5. The relationship measures the horizontal distances D1 and D2 to the distance measuring target 25.

The upper displacement measuring sensor 26 is located on the upper part of the stage 5 , and measures the first horizontal distance D1 to the target 25 for distance measurement in the width direction of the stage 5 . The lower displacement measuring sensor 27 is located at the lower part of the stage 5 and measures the second horizontal distance D2 to the target 25 for distance measurement in the width direction of the stage 5 .

The first and second horizontal distances D1 and D2 are equal when the stage 5 is in the horizontal position, but are different when the stage 5 is not in the horizontal position.

When the first horizontal distance D1 is greater than the second horizontal distance D2, in the example shown in the figure, the carrier platform 5 is inclined so that the mounting side of the jack 22 becomes higher, on the contrary, when the first horizontal distance D1 is smaller than the second horizontal distance D1 When the horizontal distance D2 is reached, it is inclined so that the installation side of the jack 22 becomes lower. These horizontal distances D1, D2 can also be measured as the above-mentioned displacement, in this case, as the increase or decrease of the displacement generated between the distance measuring target 25 and the displacement measuring sensors 26, 27. Determination.

The first horizontal distance D1 and the second horizontal distance D2 are input to the controller 28 from the upper displacement measuring sensor 26 and the lower displacement measuring sensor 27 as detection signals. The controller 28 outputs control signals to the jack 22 .

The upper displacement measuring sensor 26 and the lower displacement measuring sensor 27 continuously measure the first and second horizontal distances D1 and D2 during the lifting and lowering operation of the stage 5 and input them to the controller 28 .

Of course, during the operation of the vertical circulator 1, not only during the lifting and lowering operation of the stage 5, but also during the stoppage, the upper and lower displacement measurement sensors 26 and 27 can always measure the first and the second horizontal distances D1 and D2 are input to the controller 28 .

When these horizontal distances D1 and D2 are different (when not in a horizontal posture), the controller 28 makes the difference "zero" and becomes equal distance, in other words, cancels the increase or decrease of displacement, The jack 22 is outputted a control signal of the exposed stroke or the submerged stroke, so that the jack 22 can be actuated.

With regard to the stroke control of the jack 22, the controller 28 executes it in the following manner: in order to consider the situation where the position of the jack 22 controlled by the horizontal posture of the distance measuring target 25 is different, as shown in FIG. 6, The vertical distance V between the sensors 26 and 27 (light-receiving part 34 ) and the distance between the first and second chains 7 and 8 on which the platform 5 is suspended are measured from the upper and lower displacements of the horizontal distances D1 and D2 The horizontal distance H is determined, and a control signal for multiplying the difference between the first and second horizontal distances D1 and D2 by the H/V multiplier is output to the jack 22 . The vertical distance V and the horizontal distance H are dimensions measured when the stage 5 is in a horizontal posture.

FIG. 7 shows an example of the installation state in which the upper and lower displacement measuring sensors are installed on the stage. In FIGS. 1 to 6 , the displacement measuring sensors are simply attached to the upper surface and the lower surface of the stage.

FIG. 7(A) is a plan view of the main part of the installation state where the displacement measuring sensors 26, 27 are installed on the carrier platform 5; FIG. 7(B) is an arrow view of the line E-E in FIG. 7(A); Fig. 7(C) is an arrow view of the line F-F in Fig. 7(A); Fig. 7(D) is a view corresponding to Fig. 7(B), which shows the installation of the displacement measuring sensors 26, 27 In other installation states of the carrier 5 .

In the example shown in FIGS. 7(A) to (C), two bent brackets 35 facing up and down in opposite directions are used, and the bent bracket 35 is formed by bending the L-shaped transverse portion 35a in a right-angle direction with respect to the longitudinal portion 35b. Formed, the lateral portions 35a of the respective curved brackets 35 are joined to the upper and lower portions of the peripheral side surface 5c of the stage 5, respectively, and the upper end portion of the longitudinal portion 35b extending upward from the stage 5 is provided with an upper displacement measuring sensor. The detector 26 is provided, and a lower displacement measuring sensor 27 is provided at the lower end portion of the longitudinal portion 35b extending downward.

From the inclination of the stage 5 obtained from the first and second horizontal distances D1 and D2 measured by the displacement measuring sensors 26 and 27, the displacement measuring sensors 26 and 27 are attached to the respective bending brackets as described above. As for the upper end portion and the lower end portion of 35 , the longer the vertical distance V between the two displacement measurement sensors 26 and 27 is, the more the measurement accuracy can be improved.

On the other hand, when there is concern about the accuracy of the horizontal distances D1 and D2 themselves measured by the displacement measuring sensors 26 and 27 due to the vibration action of the bending bracket 35 due to the lifting action of the stage 5 or the like, as shown in FIG. 7 ( D), in order to ensure the vertical distance V as much as possible, of course, two L-shaped brackets 36 can also be joined along the upper edge 5d and the lower edge 5e of the stage 5, and the displacement measuring sensors 26, 27 They are respectively installed and fixed to these L-shaped brackets 36 .

The upper and lower sides of the stage 5 provided with the displacement measuring sensors 26 and 27 are not limited to the upper and lower sides of the stage 5 or the upper and lower surfaces 5a and 5b of the stage 5 as in the case of the curved bracket 35, It also means including the upper edge 5d and the lower edge 5e of the peripheral side surface 5c between the upper surface 5a and the lower surface 5b as in the case of the L-shaped bracket 36.

The function of the platform level maintaining device of the vertical circulator according to the present embodiment will be described below. During the operation of the vertical circulator 1, measurement is always performed on both ends of the platform 5 in the longitudinal direction, and the upper part and the lower part are respectively measured. The displacement measures the first and second horizontal distances D1 and D2 from the sensors 26 and 27 to the distance measuring target 25 .

The measured first and second horizontal distances D1, D2 are continuously input to the controller 28, and the controller 28 adjusts the distances in the length direction of the carrier 5 in such a way that the first and second horizontal distances D1, D2 are equal. The two jacks 22 spaced apart each output a control signal for exposing the submerged stroke.

Each jack 22 makes a stroke action in real time along the hanging direction of each first chain 7 to adjust the hanging height position of the carrying platform 5 which is hanged at four points, thereby maintaining the height of the carrying platform 5 . horizontal pose.

The device for maintaining the horizontal posture of the platform of the vertical looper of the present embodiment includes a jack 22 which is provided between the platform 5 and the first chain 7 and performs a stroke operation in the hanging direction, Used to adjust the hanging height of the carrier platform 5 to be suspended; the distance measuring target 25 is vertically arranged along the lifting action direction of the carrier platform 5; the upper displacement measuring sensor 26 is mounted on the lifting and lowering movement direction. The upper side of the carrier 5 is used to measure the first horizontal distance D1 to the distance measuring target 25; the lower displacement measuring sensor 27 is mounted on the lower side of the carrier 5 to measure the distance. The second horizontal distance D2 up to the target 25; and the controller 28, which, during the operation of the vertical circulator 1, constantly from the upper displacement measuring sensor 26 and the lower displacement measuring sensor 27 continuously The first horizontal distance D1 and the second horizontal distance D2 are input, and the jack 22 is actuated in such a way that the horizontal distances D1 and D2 become equal distances to control the exposure and submersion stroke; therefore, it can directly measure the Its posture is controlled by its posture, and the stage 5 can be maintained horizontally in a stable manner.

Regardless of the height position of the stage 5, the distance measuring target 25 can be adjacent to the displacement measuring sensors 26 and 27, so that the measuring distance can be shortened, and high-precision and precise control can be ensured.

In addition, it is not limited to the stopped state of the stage 5, and even if the stage 5 is moving up and down, the displacement measuring sensors 26 and 27 provided on the stage 5 can be used to measure the horizontal distance to the distance measuring target 25. D1 and D2, which can continuously and continuously execute the attitude control of the carrier 5 with high precision and precision.

The upper roller 6 is installed on the carrier table 5 so that the roller shaft 6a faces the width direction of the carrier table 5, and the first horizontal distance D1 and the second horizontal distance D2 are measured in the width direction of the carrier table 5, so it can be accurately The horizontal posture in the width direction of the carrier table 5 for causing the belt-like material 2 to meander can be maintained in such a way that the meandering of the belt-like material 2 can be prevented.

The distance measuring target 25 is composed of: a wire 30 whose upper end is connected to the three-dimensional frame 9 supporting the chains 7 and 8; ; constituted, it is not only very simple in structure and can ensure accurate plumb, but can measure the horizontal distances D1, D2 with high precision by the displacement measuring sensors 26, 27.

In order to stop the vibration, the distance measuring target 25 series immerses the counterweight 31 in the oil tank in the container 32. Therefore, even if the counterweight 31 is moved by external force, it can be restored and maintained at a certain level by the damping effect in the oil tank. The position of the wire rod 30 is stably maintained in the vertical position.

FIG. 8 shows a modification of the distance measuring target 25 . FIG. 8(A) is a plan view from above the stage 5, and FIG. 8(B) is an arrow view taken along the line G-G in FIG. 8(A).

In the above-mentioned embodiment, the case where the wire 30 is used as the distance-measuring target 25 has been described, but the distance-measuring target 25 may also be a plate 37 which is one of the three-dimensional frames 9 of the self-supporting chains 7 and 8 The top part 10 is provided straight in the vertical direction, and is arranged so that the plate surface 37a faces the displacement measuring sensors 26 and 27 .

In order to stop the vibration, the lower part of the plate 37 is immersed in the above-mentioned oil tank. Thereby, even if the plate 37 is moved by an external force or the like, the plate 37 can be stably maintained in the vertical installation state.

In addition, as in the case of the wire rod 30 , the weight 31 may be provided at the lower end of the plate 37 , and the weight 31 may be immersed in the oil tank.

FIG. 9 shows another modification of the distance measuring target. FIG. 9(A) is a plan view from above the stage 5, and FIG. 9(B) is an arrow view taken along the line J-J in FIG. 9(A).

As the target 25 for distance measurement, a column member 38 which is vertically fixed between the three-dimensional frame 9 and the side of the fixed bed 3 may be used instead of the above-mentioned wire member 30 or plate member 37 . The pillars 38 can also be used as the pillars 11 of the three-dimensional frame 9 .

When installing the column member 38, the above-mentioned wire member 30 is used as a temporary member, and the temporary wire member 30 is used as a reference for installation, so that the column member 38 can be properly installed vertically.

Even in the case of using the distance measuring target 25 for the plate 37 and the column 38 shown in FIGS. 8 and 9 , it is of course possible to achieve the same effect as the above-mentioned embodiment described for the case of the wire 30 .

In addition, in FIG. 4, the modification of the said embodiment is shown using the one-dot chain line. In the above-described embodiment, the horizontal distances D1 and D2 are measured in the width direction of the stage 5 suspended at four points in the front, rear, left, right (longitudinal and width directions) of the stage 5 to control the horizontal posture of the stage 5 , although this control is usually sufficient, the stage 5 may be inclined in the longitudinal direction.

In this modification, an additional upper displacement measuring sensor 39 is mounted on the upper side of the stage 5 , and the upper displacement measuring sensor 39 is located between the stages 5 in the direction in which the plurality of upper rollers 6 are arranged. In the longitudinal direction, the third horizontal distance D3 to the distance-measuring target 25 is measured, and an additional lower displacement measuring sensor 40 is mounted on the lower side of the stage 5. The fourth horizontal distance D4 to the distance measuring target 25 is measured in the longitudinal direction of the stage 5 .

In addition, although not shown, similarly to the side of the first chain 7, jacks 22 are also provided on the side of the second chain 8, and a total of four jacks 22 move the stage 5 three-dimensionally to achieve a horizontal posture control.

During the operation of the vertical circulator 1, the controller 28, in addition to the above-mentioned first and second horizontal distances D1 and D2 being equal distances, adds the upper part displacement measurement sensor 39 and the additional The lower displacement measuring sensor 40 operates the jack 22 so that the third horizontal distance D3 and the fourth horizontal distance D4 are continuously input to be equal distances.

As shown in the figure, in order to use the additional displacement measuring sensors 39 and 40 to measure the distance measuring target 25 for measuring the third and fourth distances D3 and D4, the components for measuring the first and second distances D1 and D2 may be shared. , or other special components can also be provided.

In this modification example, additional displacement measuring sensors 39 and 40 may be provided on the upper surface 5a and the lower surface 5b of the stage 5 on both end sides in the longitudinal direction of the stage 5, and these sensors 39 and 40 may be provided, respectively. Corresponding to the displacement measuring sensors 39 and 40 to be added, two distance measuring targets 25 are provided on both ends of the carriage 5 in the longitudinal direction.

As described above, the distance measuring target 25 may be a wire 30 (for example, see FIGS. 1 and 2 ), a plate 37 (see FIG. 8 ), or a column 38 (see FIG. 9 ).

The additional displacement measuring sensors 39 and 40, like the above-mentioned displacement measuring sensors 26 and 27, emit laser light L from the light projecting portion 33 toward the adjacent distance measuring target 25 along the longitudinal direction of the stage 5, and The laser light L reflected by the distance measuring target 25 from the longitudinal direction of the stage 5 is received by the light receiving unit 34 , and the horizontal distances D3 and D4 to the distance measuring target 25 are measured.

During the operation of the vertical circulator 1 , the upper displacement measuring sensor 39 is added to the upper part of the stage 5 constantly and continuously for the third horizontal distance to the distance measuring target 25 along the longitudinal direction of the stage 5 . D3 is measured, the lower part displacement measuring sensor 40 is added, the fourth horizontal distance D4 to the distance measuring target 25 is measured in the lower part of the stage 5 along the longitudinal direction of the stage 5, and the third and the fourth horizontal distances D3 and D4 are input to the controller 28 .

When the horizontal distances D3 and D4 are different (in a non-horizontal posture), the controller 28 controls the jack 22 to output the exposed stroke or the submerged stroke so that the difference becomes "zero" and the distance becomes equal. signal to activate the jack 22.

The control of the jacks 22 is performed by the controller 28. Compared with the control of the jacks in the longitudinal direction of the carrying platform 5, it is better to carry out the carrying that has a great influence on the meandering of the strip material 2 and has a high adjustment frequency. The width direction of the stage 5 is preferably controlled. In other words, it is preferable to control the horizontal posture in the longitudinal direction of the platform 5 when the horizontal posture is obtained in the width direction of the platform 5 (the first and second horizontal distances D1 and D2 are equal).

Of course, as for the installation of the additional displacement measuring sensors 39 and 40 on the stage 5, the example of the installation state shown in FIG. 7 can also be used.

In the above description, the case where the displacement measuring sensors 26, 27, 39, and 40 including the light projecting unit 33 and the light receiving unit 34 are used has been described, but other forms may be used as long as the distance can be measured. of the sensor.

In the above description, although the vertical circulator 1 has been exemplified, the fixed bed 3 provided with the first roller (lower roller 4) is installed on the ground, and the second roller is provided above it. The carrying platform 5 of the (upper roller 6) is moved up and down, but of course it can also be applied to a vertical circulator 1, where the fixed bed 3 of the first roller is arranged on the top 10, and the second roller is placed below it. The carrier platform 5 of the rollers moves up and down.

The above-described embodiments are only made to facilitate the understanding of the present invention, and are not intended to limit the interpreter of the present invention. Of course, the present invention can be changed and improved as long as it does not exceed its essential content, and the equivalent structure is also included in the scope of the present invention.

1: Vertical Circulator 2: Ribbon material 3: Fixed bed 4: Lower roller 5: carrying platform 5a: Above the carrier 5b: Below the carrier 5c: Circumferential side of the carrier 5d: The upper edge of the carrier platform 5e: Lower edge of the platform 6: Upper roller 6a: Roller shaft of upper roller 7: The first chain (hanging material) 8: Second chain (hanging material) 9: Three-dimensional frame 10: Top 11: Pillars 12: Machine 13: drive motor 14: Rotary axis system 15: Gearbox 16: Bearing components 17: First sprocket 18: Second sprocket 19: Bearing components 20: Third sprocket 21: Hammer 22: Jack (adjustment means) 23: Motor-driven screw mechanism 24: Rod 25: Target for ranging 26: Upper displacement measuring sensor 27: Lower displacement measuring sensor 28: Controller 29: Hanging base 30: Wire 31: Counterweight 32: Container 33: Projection part 34: Light receiving part 35: Bend Bracket 35a: Transverse section 35b: Longitudinal part 36: L-shaped bracket 37: Plate 37a: Board surface 38: Column 39: Added upper part displacement measurement sensor 40: Added lower displacement measurement sensor 41: Coupling D1: The first horizontal distance D2: Second horizontal distance D3: The third horizontal distance D4: Fourth horizontal distance H: Horizontal distance between the first and second chains L: laser light V: The vertical distance between the upper and lower displacement measuring sensors

FIG. 1 is a front view of a vertical circulator for explaining a preferred embodiment of the platform level maintaining device of the vertical circulator of the present invention. FIG. 2 is a side view of the vertical circulator shown in FIG. 1 . FIGS. 3(A) to (C) are explanatory diagrams for explaining an example of the elevating mechanism of the stage provided in the vertical circulator shown in FIG. 1 . 4 is a plan view illustrating the positional relationship between the distance measuring target and the upper and lower displacement measuring sensors in the embodiment shown in FIGS. 1 and 2 . FIG. 5 is a perspective view illustrating a measurement state of the horizontal distance by the upper and lower displacement measurement sensors shown in FIG. 4 . FIG. 6 is an explanatory diagram for explaining the output signal to the jack in the embodiment shown in FIGS. 1 and 2 . FIGS. 7(A) to (D) are explanatory diagrams illustrating an example of an installation state in which the upper and lower displacement measuring sensors are attached to the stage in the embodiment shown in FIGS. 1 and 2 . FIGS. 8(A) and (B) are explanatory diagrams for explaining a modification of the distance-measuring target in the embodiment shown in FIGS. 1 and 2 . FIGS. 9(A) and (B) are explanatory diagrams for explaining other modifications of the distance measuring target in the embodiment shown in FIGS. 1 and 2 .

1: Vertical Circulator

2: Ribbon material

3: Fixed bed

4: Lower roller

5: carrying platform

5a: Above the carrier

5b: Below the carrier

6: Upper roller

6a: Roller shaft of upper roller

7: The first chain (hanging material)

8: Second chain (hanging material)

9: Three-dimensional frame

10: Top

11: Pillars

12: Machine

22: Jack (adjustment means)

23: Motor-driven screw mechanism

24: Rod

25: Target for ranging

26: Upper displacement measuring sensor

27: Lower displacement measuring sensor

28: Controller

29: Hanging base

30: Wire

31: Counterweight

32: Container

L: laser light

Claims (7)

A carrier platform level maintaining device for a vertical circulator, wherein, The vertical looper is formed by alternately winding the strip material on the first roller and the second roller, the first roller series is arranged on the fixed bed, and the second roller series is arranged On the carrier platform that is suspended by the use of hanging materials to carry out the lifting action; it is characterized by The platform level maintaining device of the vertical circulator is provided with: Adjustment means, which is arranged between the above-mentioned carrying platform and the above-mentioned hanging material, and performs a stroke action along the hanging direction to adjust the hanging height position of the suspended carrying platform; The object to be measured is vertically installed along the lifting action direction of the above-mentioned carrier; an upper displacement measuring sensor, which is mounted on the upper side of the lifting platform, and measures the first horizontal distance to the object to be measured; A lower displacement measuring sensor, which is mounted on the lower side of the lifting platform, and measures the second horizontal distance to the object to be measured; and A controller, which inputs the first horizontal distance and the second horizontal distance from the upper displacement measuring sensor and the lower displacement measuring sensor, and controls the horizontal distances to be equal distances to make the adjustment means operate . The carrier level maintaining device for a vertical circulator according to claim 1, wherein the second roller train is provided on the carrier with the roller axis facing the width direction of the carrier, and the second roller train is provided on the carrier with the roller shaft facing the width direction of the carrier. The direction measures the first horizontal distance and the second horizontal distance. The platform level maintaining device for a vertical circulator according to claim 1 or 2, wherein the system to be measured is connected from the upper end to the wire of the frame supporting the hanging material, and is connected to the lower end of the wire and is connected to the wire along the lead It is formed by a counterweight that tensions the wire straight in the vertical direction. The platform level maintaining device for a vertical circulator according to claim 1 or 2, wherein the system to be measured is vertically installed on a plate of a frame supporting the hanging material. The platform level maintaining device for a vertical circulator according to claim 3 or 4, wherein the lower part of the object to be measured is immersed in an oil tank in order to stop the vibration. The platform level maintaining device for a vertical circulator according to claim 1 or 2, wherein the system to be measured is vertically installed on a column member of a frame supporting the hanging material. The platform level maintaining device for a vertical circulator according to any one of claims 1 to 6, wherein an additional upper displacement measuring sensor is mounted on the upper part side of the ascending and descending platform, and the additional upper part displacement The measuring sensor measures the third horizontal distance to the object to be measured in the longitudinal direction of the carriage along the arrangement direction of the second rollers, An additional lower displacement measuring sensor is mounted on the lower side of the lifting platform. The additional lower displacement measuring sensor is located in the longitudinal direction of the platform and measures the fourth horizontal distance to the object to be measured. , In addition to making the first and second horizontal distances equidistant, the controller also uses the first input from the additional upper displacement measuring sensor and the additional lower displacement measuring sensor. The three horizontal distances and the above-mentioned fourth horizontal distance become equal distances, and the above-mentioned adjustment means is actuated.

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