KR20130126631A - Device for detecting conveyance amount of plate-shaped object, device for cutting plate-shaped object, method for detecting conveyance amount of plate-shaped object, device for forming cutting lines on plate-shaped object, and method for forming cutting lines on plate-shaped object - Google Patents

Abstract

The present invention provides a roller which rotates in contact with a plate-like object to be conveyed, signal generating means for generating a signal according to the rotation amount of the roller, calculation means for calculating the conveying amount of the plate-shaped object based on the signal, and a guide frame. A cutting line processing means for traveling along the plate and processing a cut line on the plate-shaped object, measurement means for measuring a distance between two adjacent cut lines of the cut-off plated object, and a reference interval of the gap is stored, By comparing the intervals measured by the measuring means, the amount of change in the interval measured by the measuring means with respect to the reference interval is calculated, and a correction value corresponding to the amount of change is calculated, based on the correction value. The conveying quantity detection apparatus of the plate-shaped object provided with the correction control part which correct | amends the conveyed quantity of the said plate-shaped object by a calculation means.

Description

DEVICE FOR DETECTING CONVEYANCE AMOUNT OF PLATE-SHAPED OBJECT, DEVICE FOR CUTTING PLATE-SHAPED OBJECT, METHOD FOR DETECTING CONVEYANCE AMOUNT OF PLATE-SHAPED OBJECT, DEVICE FOR FORMING CUTTING LINES ON PLATE-SHAPED OBJECT, AND METHOD FOR FORMING CUTTING LINES ON PLATE-SHAPED OBJECT}

This invention relates to the conveyance amount detection apparatus of a plate-shaped object, the cutting device of a plate-shaped object, the conveyance amount detection method of a plate-shaped object, the cutting line processing apparatus of a plate-shaped object, and the cutting line processing method of a plate-shaped object.

As a manufacturing method of the glass plate used for the glass substrate for flat panel displays (FPD), a glass plate for building, etc., the manufacturing method called the float method disclosed by patent document 1 etc. is known. This float method is a manufacturing method which flows molten glass on tin in a molten tin bath, spreads molten glass on tin, makes a glass ribbon, and finally shape | molds to the strip | belt-shaped plate glass which has a predetermined plate thickness. The strip-shaped plate glass formed in the molten tin bath is drawn out to a slow cooling part provided downstream of the molten tin bath, cooled to a predetermined temperature there, and then continuously conveyed to a bending cutting device by a conveying means such as a roller conveyor. The sheet is cut into sized glass plates. The glass plate cut off is conveyed to a predetermined accommodating part by a roller conveyor, and is accommodated one by one here on a pallet etc., and is cut out as a product or an intermediate product.

The said bending cutting device is comprised from the cutting line processing apparatus provided in the conveyance direction upstream of strip | belt-shaped plate glass, and the bending apparatus provided in the downstream side. Moreover, the said cutting line processing apparatus is comprised from the vertical cutting machine provided in the conveyance direction upstream of the strip-shaped plate glass, and the horizontal cutting machine provided in the conveyance direction downstream, and is carried out by the cutter of a longitudinal cutting machine in the conveyance direction of strip | belt-shaped plate glass. Parallel vertical cutting lines are processed to the strip-shaped plate glass, and the horizontal cutting lines orthogonal to the conveyance direction of the strip-shaped plate glass are processed to the strip-shaped plate glass by the cutter of the horizontal cutting line processing machine on the downstream side.

Cutting line processing is performed for the purpose of taking out the board | substrate of several glass plates of different sizes at a time without waste from the strip | belt-shaped plate glass cooled by the slow cooling part by the method called size cutting. In this cutting method, a plurality of vertical cutting machines are installed in parallel, and a horizontal cutting machine is provided downstream of the vertical cutting machine to start / stop control of cutting operation of each cutting machine cutter (for example, Motion control synchronized with the shape plate glass conveyance speed), and it is a method of processing the cutting line for taking out the glass plate of several desired magnitude | size from the strip shape plate glass currently conveyed to the strip plate glass.

In the cutting process method of this size cutting, it is necessary to control the cutting process start time of a cutter precisely, and the conveyance speed of strip | belt-shaped plate glass is detected for that purpose. As a detection apparatus of a conveyance speed, the conveyance amount detection apparatus which contacts a roller with a strip-shaped plate glass currently conveyed, and detects a strip-shaped plate glass conveyance speed based on the rotation amount of the said roller rotating following conveyance of a strip-shaped plate glass is known. . This conveyance amount detection apparatus detects the rotation amount of a roller by an encoder, and counts the number of pulses output from an encoder with a pulse counter. Then, when the counted pulse number reaches the predetermined pulse number stored in advance as the cutting process start time, the control unit controls the cutter drive unit to start the cutting process by the cutter.

Moreover, the said roller is comprised from the metal roller main body and the sheet | seat made of the rubber | gum or resin lining on the outer peripheral surface of this roller main body. This sheet serves as a shock absorbing material and prevents scratches due to roller contacting the surface of the strip-shaped plate glass.

Moreover, although not a strip | belt-shaped plate glass, patent document 2 discloses the conveyance amount detection apparatus of a film (plate-shaped object). This conveyance amount detection apparatus is comprised with the free roller which follows and rotates in the conveyance of a film, and the encoder which detects the rotation of this free roller.

Japanese Patent Publication No. 8-277131 Japanese Patent Publication No. 2007-130810

However, in the conventional conveying amount detecting apparatus, the rollers undergo thermal expansion and contraction in accordance with the fluctuation of the ambient temperature, and the diameter and the angular velocity? Of the roller change. For this reason, since the rotation amount of a roller fluctuates, there existed a problem that the conveyance amount of a plate-shaped object could not be detected correctly.

In particular, in the case of the roller for strip | belt-shaped plate glass which coat | covered the rubber | gum or resin sheet on the outer peripheral surface of the roller main body, the said problem arises easily because of the material which the sheet | seat tends to thermally expand and contract. Therefore, an error occurs at the time of starting the cutting process of the cutter due to this problem, so that there is a problem that the dimension of the cut glass plate is changed. That is, there existed a problem that the dimensional accuracy of the glass plate in the conveyance direction of strip | belt-shaped plate glass fell.

This invention is made | formed in view of such a situation, and the conveyance quantity detection apparatus of the plate-shaped object which can cut-process a plate-like thing with dimensional precision, the cutting device of the plate-shaped object, and the conveyance quantity detection method of plate-shaped object, the cutting device of a plate-shaped object, and the cut line of a plate-shaped object It is an object to provide a processing method.

In order to achieve the above object, the present invention calculates a conveyance amount of the plate-like article based on the roller rotating in contact with the conveyed plate-like article, a signal generating means for generating a signal according to the rotation amount of the roller, and the signal. The calculation means for performing the step, the cutting line processing means for traveling along the guide frame, and cutting the cut line to the plate-like object, the measuring means for measuring the distance between two adjacent cut-off lines of the cut-off plated product, and the reference interval of the interval It is stored, comparing the reference interval and the interval measured by the measurement means, obtaining the change amount of the interval measured by the measurement means relative to the reference interval, and calculating a correction value corresponding to the change amount, The conveyance amount detection plate of the plate-shaped object provided with the correction control part which correct | amends the conveyance amount of the said plate-shaped object by the said calculating means based on the said correction value. To provide

In order to achieve the above object, the present invention is to rotate the roller by contacting the roller to the conveyed plate-like object, detecting the conveyed amount of the plate-like object on the basis of the signal generated according to the rotation amount of the roller, cutting means Measure the distance between two adjacent cut lines of the plate-shaped object processed by the cut line, calculate a correction value based on the change amount of the measured interval with respect to the reference interval of the interval, and convey the plate-shaped object based on the correction value. Provided is a conveying amount detection method of a plate-shaped object for correcting an amount.

According to the present invention, when information indicating the interval between two cutting lines measured by the measuring means is output to the correction controller, the correction controller compares the interval with a reference interval stored in advance, and measures the measurement for the reference interval. The amount of change in the interval measured by the means is obtained. And a correction control part calculates the correction value corresponding to the change amount, and correct | amends the conveyance amount of the plate-shaped object by a calculating means based on this correction value. Thereby, according to this invention, even if the shape of a roller changes, the conveyance amount of a plate-shaped object can be detected correctly.

In order to achieve the above object, the present invention calculates a conveyance amount of the plate-like article based on the roller rotating in contact with the conveyed plate-like article, a signal generating means for generating a signal according to the rotation amount of the roller, and the signal. Computing means for driving, cutting line processing means for traveling along the guide frame and processing the cut line in the plate-like article, folding-dividing means for bending the plate-shaped article along the cut line, and orthogonal to the cut line in the divided plate-shaped article. The measurement means for measuring the length of the direction to be measured and the reference length of the length are stored, and the reference length is compared with the length measured by the measurement means, and the length of the length measured by the measurement means with respect to the reference length is compared. The change amount is calculated, a correction value corresponding to the change amount is calculated, and the plate by the calculation means is based on the correction value. It provides a conveying amount detecting apparatus of water having a plate-like correction control section for correcting the conveyance amount of water.

In order to achieve the above object, the present invention is to rotate the roller by contacting the roller to the conveyed plate-like object, detecting the conveyed amount of the plate-like object based on the signal generated according to the rotation amount of the roller, The cutting line is processed by the cutting line processing means, and the plate-shaped object is divided by the cutting line by the dividing means, and the length in the direction orthogonal to the cutting line of the divided plate-shaped object is measured by the measuring means. And a conveyance amount detecting method for calculating a conveyance amount of a plate-like object for calculating a correction value based on an amount of change in the length measured by the measuring means with respect to the reference length of the length, and correcting the conveyance amount of the plate-shaped object based on the correction value. .

According to this invention, when the information which shows the length of the direction orthogonal to the said cutting line of the plate-shaped object measured by the measuring means is output to the correction control part, the correction control part compares the length and the reference length memorize | stored previously, and the said reference | standard The change amount of the length measured by the said measuring means with respect to length is calculated | required. And a correction control part calculates the correction value corresponding to the change amount, and correct | amends the conveyance amount of the plate-shaped object by a calculating means based on this correction value. Thereby, according to this invention, even if the shape of a roller changes, the conveyance amount of a plate-shaped object can be detected correctly.

MEANS TO SOLVE THE PROBLEM This invention provides the cutting apparatus of plate-shaped objects provided with the conveyance quantity detection apparatus of the plate-shaped object of this invention, in order to achieve the said objective.

According to the cutting device of the plate-shaped object of this invention, a plate-shaped object can be cut-processed with dimensional precision.

In order to achieve the above object, the present invention provides a roller which rotates in contact with the plate-shaped object to be conveyed, signal generating means for generating a signal according to the amount of rotation of the roller, and travels along a guide frame and cuts off the plate-shaped object. Cutting means for processing, control means for controlling the starting time of the cutting process of the plate-shaped object by the cutting line processing means based on the signal, and measuring means for measuring the distance between two adjacent cutting lines of the cut plate-formed product And the reference interval of the interval is stored, comparing the reference interval with the interval measured by the measurement means, obtaining a change amount of the interval measured by the measurement means relative to the reference interval, and adding to the change amount. Computing the corresponding correction value, and correcting the cutting line start timing by the control means based on the correction value It provides a substrate processing apparatus jeolseon water having a positive control.

The present invention, in order to achieve the above object, to rotate the roller by contacting the roller to the conveyed plate-like object, and control the timing of starting the cutting process of the plate-like object by the cutting line processing means based on the signal according to the rotation amount of the roller In addition, the distance between two adjacent cutting lines of the plate-shaped object which has been cut and processed is measured by a measuring means, and the change amount of the interval measured by the measuring means with respect to the reference interval of the gap is calculated. A cut line processing method of a plate-like object which calculates a corresponding correction value and correct | amends the cut line start time based on the said correction value is provided.

According to the present invention, when information indicating the interval between two cutting lines measured by the measuring means is output to the correction controller, the correction controller compares the interval with a reference interval stored in advance, and measures the measurement for the reference interval. The amount of change in the interval measured by the means is obtained. And a correction control part calculates the correction value corresponding to the change amount, and correct | amends the cutting process start time by a cutting line processing means based on this correction value. Thereby, according to this invention, even when the diameter of a roller changes, the plate-shaped object can be cut-off with high dimensional precision.

In order to achieve the above object, the present invention provides a roller which rotates in contact with the plate-shaped object to be conveyed, signal generating means for generating a signal according to the amount of rotation of the roller, and travels along a guide frame and cuts off the plate-shaped object. Cutting line cutting means for processing, bending dividing means for dividing the plate-like object along the cutting line, control means for controlling the starting time of cutting of the plate-shaped object by the cutting line processing means based on the signal, and dividing line The measurement means for measuring the length of the direction orthogonal to the cut line of the said plate-shaped object, and the reference length of the said length are memorize | stored, comparing the said reference length and the length measured by the said measurement means, and said The amount of change in the length measured by the measuring means is obtained, and a correction value corresponding to the amount of change is calculated, and the correction value is A cut line processing apparatus of a plate-shaped object provided with the correction control part which correct | amends the cut line starting start time of the said plate-shaped object by the said control means.

The present invention, in order to achieve the above object, to rotate the roller by contacting the roller to the conveyed plate-like object, and control the timing of starting the cutting process of the plate-like object by the cutting line processing means based on the signal according to the rotation amount of the roller In addition, the length in the direction orthogonal to the cut line of the plate-shaped object divided along the cut line is measured by a measuring means, and is corrected based on the change amount of the length measured by the measuring means with respect to the reference length of the length. A cut line processing method of a plate-shaped object which calculates a value and correct | amends the cut line starting start time based on the said correction value is provided.

According to this invention, when the information which shows the length of the direction orthogonal to the said cutting line of the plate-shaped object measured by the measuring means is output to the correction control part, the correction control part compares the length and the reference length memorize | stored previously, and the said reference | standard The change amount of the length measured by the said measuring means with respect to length is calculated | required. And a correction control part calculates the correction value corresponding to the change amount, and correct | amends the cutting process start time by a cutting line processing means based on this correction value. Thereby, according to this invention, even when the diameter of a roller changes, the plate-shaped object can be cut-off with high dimensional precision.

According to the conveyance amount detection apparatus and the conveyance amount detection method of the plate-shaped object of this invention, the conveyance amount of a plate-shaped object can be detected correctly.

According to the cutting device of the plate-shaped object of this invention, a plate-shaped object can be cut-processed with dimensional precision.

According to the cutting line processing apparatus of the plate-shaped object of this invention, and the cutting line processing method of a plate-shaped object, the plate-shaped object can be cut-off with high dimensional precision.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the cutting line processing apparatus to which the conveyance amount detection apparatus of 1st Embodiment was applied.
It is a top view of the cutting line processing apparatus shown in FIG.
It is a figure used in order to demonstrate the cutting line processing method by different size cutting.
It is a block diagram which shows the structure of the cutting line processing apparatus of embodiment.
FIG. 5 is a block diagram showing the configuration of the conveyance amount detecting device of the first embodiment. FIG.
6 is an explanatory diagram showing cut lines picked up by an electronic camera.
It is a perspective view of the cutting line processing apparatus to which the conveyance amount detection apparatus of 2nd Embodiment was applied.
It is a top view of the cutting line processing apparatus shown in FIG.
It is a perspective view of the cutting line processing apparatus to which the conveyance amount detection apparatus of 3rd Embodiment was applied.
It is a perspective view of the cutting line processing apparatus to which the conveyance quantity detection apparatus of 4th Embodiment was applied.

EMBODIMENT OF THE INVENTION Hereinafter, according to an accompanying drawing, preferable embodiment of the conveyance amount detection apparatus of the plate-shaped object, the cutting device of plate-shaped object, the conveyance amount detection method of a plate-shaped object, the cutting line processing apparatus of a plate-shaped object, and the cutting line processing method of a plate-shaped object is described in detail. do.

FIG. 1: is a perspective view of the cutting line processing apparatus 10 of strip | belt-shaped plate glass G of embodiment to which the conveyance quantity detection apparatus 100 of strip | belt-shaped plate glass G which concerns on 1st Embodiment was applied. FIG. 2 is a plan view of the cutting line processing device 10 shown in FIG. 1.

The cutting line processing apparatus 10 shown to FIG. 1 and FIG. 2 is a roller conveyor 12 from the strip-shaped plate glass manufacturing apparatus (not shown) by the float method provided in the conveyance direction upstream of strip-shaped plate glass G. It is a cutting line processing apparatus corresponding to the cutting line processing method called what is called a size cutting | disconnection which processes a longitudinal cutting line and a horizontal cutting line to the strip | belt-shaped plate glass G conveyed continuously by this.

The operation of each cutter of this cutting line processing apparatus 10 is controlled based on the conveyance amount of the strip | belt-shaped plate glass G detected by the conveyance amount detection apparatus 100. FIG. This will be described later. Moreover, the main objective of providing the conveyance amount detecting apparatus 100 is to improve the dimensional accuracy in the conveyance direction of the strip | belt-shaped plate glass G of the glass plate of 1 sheet cut | disconnected from strip | belt-shaped plate glass G. have. For this reason, the conveyance amount of strip | belt-shaped plate glass G is detected by the conveyance amount detection apparatus 100 correctly.

A glass folding apparatus (not shown) is provided in the conveyance direction downstream of the strip | belt-shaped plate glass G of the cutting line processing apparatus 10, and the glass plate divided | segmented by the glass folding apparatus is provided in the rear end of this glass folding apparatus, A roller conveyor (not shown) which allocates, conveys and collects plates is provided in the accommodating portion according to the size. The cutting device of a plate-shaped object is comprised by the cutting line processing apparatus 10 and the said glass bending apparatus.

In addition, the structure of the conveyance amount detection apparatus 100 and the conveyance amount detection method of strip | belt-shaped plate glass G by the conveyance amount detection apparatus 100 are mentioned later. Moreover, the said roller conveyor which allocates and conveys the cutting line processing apparatus 10, the said strip | belt-shaped plate glass manufacturing apparatus, the said roller conveyor, the said glass folding device, and the glass plate of which the division | segmentation was complete | finished to a receiving part, and strip | belt using them. The manufacturing apparatus of a shape plate glass is the same as a well-known technique. In addition, the strip | belt-shaped plate glass G of embodiment may be used for the glass substrate for FPD, and may be used for the glass plate for solar cells, the glass plate for illumination, the glass plate for building, or the glass plate for automobile windows. In addition, the plate-shaped object made into the object is not limited to strip | belt-shaped plate glass G, but may be a rectangular glass plate. The material of a plate-shaped thing is not limited, either, The conveyance quantity detection apparatus 100 of the plate-shaped object of embodiment can be applied as long as it is a plate-shaped thing made of resin or a metal plate, and conveyed continuously. In addition, the manufacturing apparatus of strip | belt-shaped plate glass G is not limited to the manufacturing apparatus by a float method, It may be other manufacturing apparatuses, such as a fusion method.

Hereinafter, although the cutting line processing apparatus 10 which differs in size cutting is demonstrated, the cutting line processing apparatus 10 is not limited to size cutting. That is, if it is a cutting line processing apparatus which can improve the dimensional accuracy of the glass plate in the conveyance direction of the strip | belt-shaped plate glass G, the cutting line processing apparatus which processes only what is called horizontal cutting line to strip | belt-shaped plate glass G (in FIG. It is also applicable to the cutting line processing apparatus provided only with the cutting line processing machine 16). Therefore, the cutting line processing apparatus 10 which performs different size cutting is an example to the last.

The cutting line processing apparatus 10 is comprised from the vertical cutting line processing machine 14 provided in the conveyance direction upstream of strip | belt-shaped plate glass G, and the horizontal cutting line processing machine 16 provided in the downstream side. The longitudinal cutting line parallel to the conveyance direction of the strip-shaped plate glass G is processed by this longitudinal cutting machine 14, and it processes the strip-shaped plate glass G by the horizontal cutting line machine 16 in the downstream side. The horizontal cutting line orthogonal to a conveyance direction is processed to strip | belt-shaped plate glass G. As shown to FIG.

The longitudinal cutting machine 14 is equipped with the several cutter 18,18 ... provided in the width direction of strip | belt-shaped plate glass G. As shown in FIG. These cutters 18, 18 .. are moved forward and backward with respect to the strip-shaped plate glass G being conveyed by the roller conveyor 12, and are moved forward and backward, and thus, the cutters 18, 18. Pressurized by pressing force. Thereby, the longitudinal cutting line parallel to the conveyance direction of strip | belt-shaped plate glass G is processed to strip | belt-shaped plate glass G. As shown to FIG.

On the other hand, the transverse cutting machine 16 is equipped with one cutter 20, and this cutter 20 has respect to the conveyance direction of strip | belt-shaped plate glass G in synchronism with the conveyance speed of strip | belt-shaped plate glass G. As shown to FIG. By meandering, the horizontal cutting line of the direction orthogonal to the conveyance direction of strip | belt-shaped plate glass G is processed to strip | belt-shaped plate glass G. As shown to FIG. In addition, the arrow A in FIG. 1 and FIG. 2 has shown the conveyance direction of strip | belt-shaped plate glass G. As shown in FIG.

Here, with reference to FIG. 3, the cutting line processing method called difference size cutting is demonstrated.

This cutting process method uses the longitudinal cutting lines CV1 to CV5 and the horizontal cutting lines CH6 to CH11 to cut out rectangular glass plates G1 and G2 having two different sizes from the strip-shaped plate glass G being conveyed. It is a method of processing to strip | belt-shaped plate glass G in conveyance. In addition, the magnitude | size of the glass plate to be cut out is not limited to two types, Three or more types may be sufficient. In addition, the arrow A in FIG. 3 has shown the conveyance direction of strip | belt-shaped plate glass G. As shown in FIG.

The vertical cutting lines CV1 and CV2 shown in FIG. 3 were processed in order to cut out the edge glass G5 which the edge roller contacted in the molten tin bath of the said strip-shaped plate glass manufacturing apparatus from the strip | belt-shaped plate glass used as a product. It is processed by the two cutters 18 and 18 arrange | positioned at both sides among the cutters 18 and 18 of the longitudinal cutting machine 14. As shown in FIG. The two cutters 18 and 18 are always in contact with the strip-shaped plate glass G in a state where a predetermined pressing force is applied, and thus the cutting depth satisfies the strip-shaped plate glass G that is continuously conveyed thereby. The longitudinal cutting lines CV1 and CV2 of are processed continuously.

The vertical cutting lines CV3 and CV4 are processed to cut the glass plates G1, G1... And two cutters 18, 18 arranged inside of the cutters 18, 18 ... of the vertical cutting machine 14. Is processed by). These two cutters 18 and 18 move forward and backward (up and down) with respect to the strip | belt-shaped plate glass G currently conveyed in synchronism with the conveyance speed of strip | belt-shaped plate glass G by a forward and backward movement means. That is, the two cutters 18 and 18 which process the vertical cutting lines CV3 and CV4 move out toward the cutting processing starting point P1 and P1, and contact the strip | belt-shaped plate glass G, and thereafter, The contact is continued in a state where a predetermined pressing force is applied to the shaped plate glass G, and the sheet plate G is retracted and moved from the strip-shaped plate glass G when the cutting line processing end points P2 and P2 are reached. Thereby, the longitudinal cutting lines CV3 and CV4 of the cutting depth favorable for the division | segmentation are processed to the strip | belt-shaped plate glass G conveyed continuously.

The vertical cutting line CV5 is processed in order to cut out the glass plate G2 of the size larger than the glass plate G1, and the cutter 18 arrange | positioned in the center among the cutters 18, 18 ... of the longitudinal cutting machine 14 is carried out. Is processed by). Similarly, this cutter 18 is moved forward and backward (up and down) with respect to the strip | belt-shaped plate glass G currently conveyed in synchronization with the conveyance speed of strip | belt-shaped plate glass G by a forward and backward movement means. That is, the cutter 18 which processes the longitudinal cutting line CV5 advances and moves toward the cutting line starting point P3, and comes in contact with the strip-shaped plate G, and then predetermined with respect to the strip-shaped plate G. The contact is continued in the state where the pressing force of is applied, and it is retracted and moved from the strip | belt-shaped plate glass G when the cutting line processing end point P4 is reached. Thereby, the longitudinal cutting line CV5 of the cutting depth favorable for the division | segmentation is processed to the strip | belt-shaped plate glass G conveyed continuously.

The advance start time (cutting time start time) and the retirement start time of the three cutters 18 for processing the longitudinal cutting lines CV3 to CV5 are controlled by the conveyance amount detecting device 100 (see FIG. 1). This will be described later.

On the other hand, the horizontal cutting lines CH6 to CH9 are processed to cut the glass plate G1, and are processed one by one by the cutter 20 of the horizontal cutting machine 16. As for the motor 64 (refer FIG. 4) which meanders the cutter 20, the meandering speed is motion-controlled by the control apparatus 56 in synchronization with the conveyance speed of the strip | belt-shaped plate glass G, and, thereby, Horizontal cutting lines CH6 to CH9 in a direction orthogonal to the conveyance direction of the strip-shaped plate glass G are processed into the strip-shaped plate glass G. Moreover, the cutter 20 is provided so that it may move up and down with respect to strip | belt-shaped plate glass G by actuators, such as an air cylinder. By this actuator, the cutter 20 starts lowering in advance at the position before the predetermined amount of the cutting line processing start point P5, in order to process the horizontal cutting lines CH6-CH9 of favorable cutting depth. Thereafter, the cutter 20 meanders on the strip-shaped plate G along the guide frame 21 by the driving force of the motor 64. As a result, the horizontal cutting lines CH6 to CH9 are processed. Thereafter, the cutter 20 is moved up from the strip-shaped plate G by the actuator after passing a predetermined amount through the cutting line processing end point P6, and thereafter, the original cutting line standby position (FIGS. 1 and 2). Is moved back by the motor 64 to the position indicated by the solid line of.

Horizontal cutting lines CH10 and CH11 shown in FIG. 3 are processed to cut | disconnect glass plate G2, and are processed by the cutter 20 of the horizontal cutting machine 16. As shown in FIG. Since the operation | movement of this cutter 20 is the same as the operation | movement which processes horizontal cutting line CH6-CH9, description is abbreviate | omitted.

The meandering movement start timing (cutting process starting timing) of the cutter 20 for processing the horizontal cutting lines CH6 to CH11 is controlled by the conveyance amount detecting device 100 (see FIG. 1). This will be described later.

Thus, by the said operation | movement of the cutter 18 which processes a longitudinal cutting line, and the cutter 20 which processes a horizontal cutting line, the rectangular-shaped glass plate G1 from which two kinds of size differs from the strip | belt-shaped plate glass G conveyed. , Vertical cutting lines CV1 to CV5 and horizontal cutting lines CH6 to CH11 for picking out G2) are processed into the strip-shaped plate glass G being conveyed.

In the cutting line processing method of different size cutting | disconnection, in order to cut out the glass plate from which many different sizes differ from the strip | belt-shaped plate glass as much as possible without waste, to a vertical cutting machine 14 according to the sampling schedule of the glass plate of each designated size. It is desired to make the distance between the ends of the longitudinal cutting lines CV3 to CV5 and the horizontal cutting lines CH6 to CH11 by the horizontal cutting machine 16 as small as possible. Therefore, in order to make the said distance small, the cutter (of the horizontal cutting machine 16 which processes the cutter 18 and the horizontal cutting line CH6-CH11 of the vertical cutting machine 14 which processes vertical cutting lines CV3-CV5 ( It is necessary to precisely perform the start / stop control of the cutting operation of 20), that is, the advance movement control of the cutters 18 and 20 with respect to the strip-shaped plate glass G being conveyed, and that is the conveyance amount detecting apparatus 100. (Refer to FIG. 1).

As shown in FIG. 4, the advancing and moving means of the cutter 18 includes a servo motor 24. The servo motor 24 and the cutter 18 are connected to each other in FIG. The beam part (guide frame) 26 is provided at predetermined intervals. This beam part 26 is provided over the roller conveyor 12, and is provided in the direction orthogonal to the conveyance direction of strip | belt-shaped plate glass G. As shown in FIG. Further, the ball screw device as the conveying means is installed in the hollow beam portion 26, and the ball screw device is driven so that the cutter 18 moves in the horizontal slit 28 formed in the beam portion 26. The slide is moved through. Thereby, the position of the cutter 18 of the direction orthogonal to the conveyance direction of strip | belt-shaped plate glass G is adjusted.

The servo motor 24 moves downward with the cutter 18 to generate the pressing force with respect to the strip | belt-shaped plate G in order to process longitudinal cut line to strip | belt-shaped plate glass G. As shown in FIG. The torque of this servomotor 24 is controlled by the control apparatus 56 via the servo amplifier 54 shown in FIG. Therefore, by controlling the torque of the servo motor 24 by the control apparatus 56, the pressing force of the cutter 18 with respect to the strip | belt-shaped plate glass G is set.

In addition, the control device 56 is provided with a signal indicating a current value applied to the servo motor 24 (a signal indicating the torque of the servo motor 24) along with data applied from the current detector 60, and the servo motor 24. A pulse signal indicative of the rotational position or rotational speed of the c) is applied from the pulse generator (PG) 62 via the servo amplifier 54.

The control device 56 can detect the rotational position of the servo motor 24 by counting the pulse signal from the pulse generator (PG) 62, and also counts the pulse signal applied within a predetermined time so that the servo motor ( The rotational speed of 24 can be detected. Further, the control device 56, based on the signal indicating the torque from the current detector 60, or the pulse signal from the pulse generator (PG) 62, torque command for torque control of the servo motor 24. The signal is output to the servo amplifier 54. The servo amplifier 54 torque-controls the servo motor 24 based on the torque command signal.

Moreover, the control apparatus 56 controls the advancing movement time of the cutter 18 by the servomotor 24 based on the conveyance amount of the strip | belt-shaped plate glass G obtained by the conveyance amount detection apparatus 100. FIG. In addition, the cutting process start time of the cutter 20 by the motor 64 is controlled. As a result, the control device 56 causes the cutters 18 and 20 to perform cutting process of different size cutting.

Next, operation | movement of the cutting line processing apparatus 10 of strip | belt-shaped plate glass G comprised as mentioned above is demonstrated.

The cutting line processing apparatus 10 is a longitudinal cut line CV3 parallel to the conveyance direction of the strip plate glass G by the cutters 18 and 18 ... to the strip plate glass G conveyed by the roller conveyor 12. As shown in FIG. To CV5) (refer FIG. 3: the description of the vertical cutting lines CV1 and CV2 is abbreviate | omitted after this). And by using the servo motor 24 with high responsiveness as the advancing and moving means of the cutter 18 with respect to strip | belt-shaped plate glass G, this servomotor 24 is torque-controlled by the control apparatus 56, The pressing force of the cutter 18 with respect to the strip | belt-shaped plate glass G is controlled and the longitudinal cutting line CV3-CV5 are processed to the strip | belt-shaped plate glass G.

Next, the conveyance amount detecting apparatus 100 of the embodiment will be described.

As shown in FIG. 1, FIG. 2, and FIG. 5, the conveyed amount detection apparatus 100 is equipped with the roller 102 which contacts and rotates the strip | belt-shaped plate glass G in conveyance. Moreover, the electronic camera (measurement means) 104A, 104B which image | photographs the two adjacent cutting lines 105A and 105B of the strip | belt-shaped plate | plate glass G which carried out the cutting process separately is provided. Moreover, the encoder (signal generation means) 106 which generate | occur | produces a pulse signal according to the rotation amount of the roller 102 is provided. Moreover, the control apparatus which calculates the conveyance amount of strip | belt-shaped plate glass G based on the pulse counter 112 which counts the pulse signal which generate | occur | produced from the encoder 106, and the pulse number counted by the pulse counter 112 ( Computing means (correction control unit) 56 is provided.

In the storage unit (not shown) of the control device 56, the processing intervals of the two cut lines 105A and 105B and the reference intervals (reference intervals) are stored. This reference spacing is equivalent to the length of the direction orthogonal to the cutting lines 105A and 105B of one glass plate which is bent from the strip | belt-shaped plate glass G, and corresponds to the setting value Y mentioned later.

On the other hand, 104 A of electronic cameras are provided in the downstream of the conveyance direction of strip | belt-shaped plate G, and electronic camera 104B is provided in the upstream of the conveyance direction of strip | belt-shaped plate glass G. As shown in FIG. The electronic cameras 104A and 104B also control the image pickup device to simultaneously image the two cut lines 105A and 105B at a timing when two adjacent cut lines 105A and 105B pass below the electronic cameras 104A and 104B. It is controlled by 56. An image signal including two adjacent cut lines 105A and 105B picked up by the electronic cameras 104A and 104B is binarized by the image processing unit 114 shown in FIG. Only the images of the cut lines 105A and 105B are extracted.

At this time, the electronic cameras 104A and 104B are provided so that the space | interval of electronic cameras 104A and 104B may become equal to the above-mentioned setting value Y.

Specifically, this will be described with reference to FIG. 6. In FIG. 6, an image of the cut line 105A captured by the electronic camera 104A is displayed in the image area 116A of the electronic camera 104A. Moreover, the image of the broken line 105B image | photographed with the electronic camera 104B is displayed in the image area 116B of the electronic camera 104B. The electronic cameras 104A and 104B are set so that the distance L between the centerlines 117A and 117B of the respective image areas 116A and 116B is equal to the set value Y. In addition, as shown in FIG. 1, the electronic cameras 104A and 104B are supported by a support member 118 made of a low thermal expansion material such as Invar, Super Invar, Stainless Invar, or Aluminum, thereby changing the environmental temperature. Even in this case, the distance L between the electronic cameras 104A and 104B is provided so as not to fluctuate.

The image signals of the two cut lines 105A and 105B binarized by the image processing unit 114 in FIG. 5 are output to the control device 56. The control device 56 stores dimensions corresponding to one pixel of the electronic cameras 104A and 104B. The control device 56 counts pixels from the center line 117A of the image area 116A shown in FIG. 6 to the image of the cut line 105A, and cuts off from the center line 117B of the image area 116B. By counting the pixels up to the image of 105B, the distance between two adjacent cut lines 105A and 105B is calculated. This interval is the measured value.

And the control apparatus 56 compares the said measured value with the above-mentioned setting value Y, calculate | requires the change amount of the measured value with respect to the set value Y, and calculates the correction value corresponding to the change amount, The conveyance amount of strip | belt-shaped plate glass G is correct | amended based on a correction value.

Thereby, according to the conveyed quantity detection apparatus 100, even when the shape of the roller 102 changes, the conveyed quantity of strip | belt-shaped plate glass G can be detected correctly.

Next, the specific example of the conveyance amount detection method of strip | belt-shaped plate glass G by the conveyance amount detection apparatus 100, and the cutting line processing method of strip | belt-shaped plate glass G is demonstrated. In addition, although this specific example illustrates the cutter 20 which processes a horizontal cutting line, the same also applies to the cutter 18 which processes a vertical cutting line.

(1) requirements

Feeding amount (cutting line spacing) of strip-shaped plate glass G: Y (mm)

Diameter of the roller 102: D (mm)

Resolution of encoder 106: A (pulse)

1 pulse travel distance: p (mm / pulse) p = πD / A

Correction factor: C

Reference correction factor: C1

Normal correction factor: C2

Cut line command interval: P (pulse) P = Y / p × C2 / C1

(2) First, the acquisition method of the correction coefficient C is demonstrated.

When the peripheral length πD of the roller 102 is divided by the pulse A per revolution, which is the resolution of the encoder 106, the traveling distance p of the strip-shaped plate glass G per pulse can be calculated.

When dividing the conveyance amount of strip | belt-shaped plate glass G by the advancing distance of strip | belt-shaped plate glass G per pulse, the number of pulses required in order to give the cutting line processing instruction which processes a horizontal cut line to the strip | belt-shaped plate glass G in conveyance ( Cutting line command interval: P) can be calculated.

That is, the pulse number P can be calculated by the formula of P = Y / p.

However, in practice, since the measured value of the diameter D of the roller 102 in operation and the design value of the diameter D 'of the roller 102 do not coincide completely, the pulse necessary for multiplying the correction coefficient C to give a cutting start start command. The number P needs to be corrected in advance.

The pulse number P in this case is calculated as follows when the reference correction coefficient is C1 and the normal correction coefficient is C2.

P = Y / p × C = Y / p × (C2 / C1)

Here, the reference correction coefficient C1 is a constant.

In other words, by acquiring the normal correction coefficient C2 in advance, the cutting process start command is output from the control device 56 to the motor 64 for each pulse calculated by P = Y / p × (C2 / C1). The cutting line of the exact distance interval can be processed to strip | belt-shaped plate glass G. Here, the acquired normal correction coefficient C2 is stored in the control device 56. That is, when the diameter of the roller 102 changes, the normal correction coefficient C2 is correct | amended by the control apparatus 56 again.

(3) Next, the acquisition method of the new normal correction coefficient C2 'when the diameter of the roller 102 changes is demonstrated.

The new normal correction coefficient C2 'is the distance between the conveyance amount set value L1 (Y: target value) of the strip-shaped plate glass G and two adjacent cut lines 105A and 105B obtained by the electronic cameras 104A and 104B. From the measured value L2, it can calculate as follows.

New normal correction coefficient C2 '= normal correction coefficient C2 * (measured value L2 of conveyance amount set value L1 of strip-shaped plate glass G / interval of two cutting lines adjacent to)

With respect to the conveyed amount set value L1 of the strip-shaped plate glass G, when the measured value L2 of the space | interval of two adjacent cutting lines differs from the said conveyed amount set value L1, it is recognized that the diameter of the roller 102 changed, The above-described normal correction coefficient C2 is corrected.

in this case,

C2 ′ = C2 × (L1 / L2)

Become,

Therefore, P = L1 / p × (C2 ′ / C1)

. Therefore, the control apparatus for every pulse P calculated based on the change amount of the conveyance amount of the strip | belt-shaped plate glass G, in other words, the change amount of the measured value L2 of the said interval with respect to the conveyed amount set value L1 of the strip | belt-shaped plate glass G. By correcting the normal correction coefficient C2 with the new normal correction coefficient C2 'so as to output the cutting process start command to the motor 64 from (56), the transverse cutting lines of the correct distance intervals can be processed on the strip-shaped plate glass G. .

Therefore, the conveyance amount detection apparatus 100 conveys the strip | belt-shaped plate glass G even if the roller 102 which contacts the strip | belt-shaped plate glass G via the sheet | seat 110 is thermally expanded and contracted, and an angular velocity omega fluctuates. The amount can be detected accurately, and as a result, the dimensional accuracy in the direction orthogonal to the cutting lines 105A and 105B of the cut glass plate is improved. Moreover, since the cutting process start time of the cutter 18 and the retreat movement time of the cutter 18 are also controlled based on the signal which shows the exact conveyance amount output from the control apparatus 56, the strip | belt-shaped plate glass G has the precision Good longitudinal cutting lines CV3 to CV5 can be processed.

Moreover, also about the glass bending time of the glass bending apparatus (not shown) provided in the downstream of the cutting line processing apparatus 10, in the conveyance quantity information of strip | belt-shaped plate glass G from the conveyance quantity detection apparatus 100. It is preferable to control based on this. Thereby, strip | belt-shaped plate glass G can be correctly divided | divided along longitudinal cut line CV3-CV5 and horizontal cut line CH6-CH11. Thereby, according to the cutting device of embodiment, the strip | belt-shaped plate glass G can be cut-processed with dimensional precision.

On the other hand, the roller 102 is comprised from the metal roller main body 108 and the rubber or resin sheet 110 lining on the outer peripheral surface of the roller main body 108. As shown in FIG. This sheet 110 serves as a shock absorbing material and prevents scratches caused by the roller 102 contacting the surface of the strip-shaped plate glass G. In addition, since the sheet 110 closely adheres to the surface of the strip-shaped plate G, since the sliding of the roller 102 with respect to the strip-shaped plate G is prevented, the detection accuracy of the conveyance amount of the strip-shaped plate G is detected. Is raised.

Although the said embodiment detects the conveyance amount of strip | belt-shaped plate glass G by measuring the space | interval of two adjacent cutting lines 105A, 105B, and controls the cutting line start time, it is FIG.7 and FIG.8. The glass plate G _{A which was} divided | segmented along the cutting lines 105A and 105B shown in FIG. 2 from strip | belt-shaped plate glass G by the glass folding apparatus (bending division means) 120 like 2nd embodiment shown to FIG. The length L _A (refer to FIG. 7, FIG. 8) of the direction orthogonal to the cutting lines 105A, 105B of () is acquired by the two electronic cameras 104A, 104B, and the length L _A and set value You may compare (Y), detect the conveyance amount of strip | belt-shaped plate glass G, and control the cutting line start time. In this case, similar effects can be obtained.

That is, the electronic camera 104A images the edge portion 107A of the glass plate G _A , and the electronic camera 104B images the edge portion 107B of the glass plate G _A. An edge calculating method of the glass sheet (G _A) jeolseon (105A, 105B) and the length (L _A) in the direction perpendicular of which corresponds to the spacing (107A, 107B) is equal to the distance calculation method of jeolseon (105A, 105B) Do. In addition, control of the conveyance amount detection of the strip | belt-shaped plate glass G based on the space | interval of edge part 107A, 107B, and the cutting line processing start time is the same as that of the control apparatus 56 shown in FIG.

Therefore, according to the apparatus shown in FIG. 7 and FIG. 8, the information which shows the length L _A of the direction orthogonal to the cutting lines 105A, 105B of the glass plates G _A acquired by the electronic cameras 104A, 104B is When output to the control device (correction control unit), the control device compares the length L _A and the set value (Y: reference length) to obtain the amount of change in the length L _A. And a control apparatus calculates the correction value corresponding to the change amount, and correct | amends the cutting process start time by the cutters 18 and 20 based on this correction value. Thereby, according to this invention, even if the diameter of the roller 102 changes and the conveyance amount of the strip | belt-shaped plate glass G changes, the strip | belt-shaped plate glass G can be cut-off with high dimensional precision.

7 and 8, without changing the conveying direction of the glass sheet (G _A) divided kkeokeum by a glass kkeokeum device 120, and imaging the edge (107A) of the glass sheet (G _A) by the electronic camera (104A) , but the image pick-up edge (107B) of the glass sheet (G _a) by the electronic camera (104B), it is not limited thereto. For example, after converting the conveyance direction of the glass plate G _A divided | segmented by the glass folding apparatus 120 by 90 degrees, the edge part of the glass plate G _A by the electronic camera 104A arrange | positioned in another position imaging a 107A), and is also possible to image the edge (107B) of the glass sheet (G _a) by the electronic camera (104B). In any case, the length L _A of the direction orthogonal to the cutting lines 105A and 105B of the glass plate G _A can be calculated.

FIG. 9: is a perspective view of the cutting line processing apparatus 10 to which the conveyance amount detection apparatus of 3rd Embodiment was applied.

9 conveys the corner parts C1 and C2 of the both ends of cut line 105A with two cameras 104A1 and 104A2, and the corner part of the both ends of cut line 105B. (C3, C4) is imaged by two cameras 104B1 and 104B2. Then, the four cameras based on the coordinate position information of the four corners (C1 to C4) is obtained from each of the image information (104A1, 104A2, 104B1, 104B2 ), the glass sheet (G _A) jeolseon (105A, 105B) and the The measurement means (not shown) calculates the length L _{A in} the orthogonal direction. In addition, the control of the conveyance amount detection of the strip | belt-shaped plate glass G based on the space | interval of cutting line 105A, 105B, and cutting line processing start time is the same as that by the control apparatus 56 shown in FIG.

FIG. 10: is a perspective view of the cutting line processing apparatus 10 to which the conveyance amount detection apparatus of 4th Embodiment was applied.

While the conveyance amount detection apparatus shown in FIG. 10 images the corner parts C5 and C6 of both ends of the edge part 107A of the glass plate G _A divided by two cameras 104A3 and 104A4, Corner portions C7 and C8 at both ends of the edge portion 107B are captured by two cameras 104B3 and 104B4. Then, the four cameras based on the coordinate position information of the four corner portions (C5 to C8) obtained from each of the image information (104A3, 104A4, 104B3, 104B4 ), the glass sheet (G _A) an edge (107A, 107B) and the The measurement means (not shown) calculates the length L _{A in} the orthogonal direction. In addition, the control of the conveyance amount detection of the strip | belt-shaped plate glass G based on the space | interval of edge part 107A, 107B and the cutting line processing start time is the same as that by the control apparatus 56 shown in FIG.

Although this invention was detailed also demonstrated with reference to the specific embodiment, it is clear for those skilled in the art that various corrections and changes can be added without deviating from the range and mind of this invention.

This application is based on the JP Patent application 2010-271821 of an application on December 6, 2010, The content is taken in here as a reference.

G: strip-shaped plate glass
10: cutting machine
12: roller conveyor
14: longitudinal cutting machine
16: horizontal cutting machine
18: cutter
20: cutter
21: guide frame
24: servo motor
26: beam portion
28: slit
54: servo amplifier
56: control unit
60: current detector
62: pulse generator (PG)
64: motor
100: conveying amount detection device
102: roller
104A, 104B: Electronic camera
104A1, 104A2, 104A3, 104A4: Electronic Camera
104B1, 104B2, 104B3, 104B4: Electronic Camera
105A, 105B: Cutoff
106: encoder
107A, 107B: edge
108: roller body
110: sheet
112: pulse counter
114: image processing unit
116A, 116B: Image area
117A, 117B: Centerline
118: support member
120: glass folding device

Claims (9)

A roller which rotates in contact with the plate-like object being conveyed,
Signal generating means for generating a signal in accordance with the amount of rotation of the roller;
Calculating means for calculating a conveyance amount of the plate-like object based on the signal;
Cutting line processing means for traveling along the guide frame and processing the cutting line on the plate;
Measuring means for measuring an interval between two adjacent cut lines of the plate-shaped object which has been cut
The reference interval of the interval is stored, comparing the reference interval with the interval measured by the measurement means, obtaining a change amount of the interval measured by the measurement means relative to the reference interval, and corresponding to the change amount. The conveyance amount detection apparatus of the plate-shaped object provided with the correction control part which calculates a correction value, and corrects the conveyance amount of the said plate-shaped object by the said calculation means based on the said correction value. A roller which rotates in contact with the plate-like object being conveyed,
Signal generating means for generating a signal in accordance with the amount of rotation of the roller;
Calculating means for calculating a conveyance amount of the plate-like object based on the signal;
Cutting line processing means for traveling along the guide frame and processing the cutting line on the plate;
Bending dividing means for dividing the plate-like article along the cutting line;
Measuring means for measuring a length in a direction orthogonal to the cut line of the plate-shaped object divided by the division;
The reference length of the length is stored, the reference length is compared with the length measured by the measuring means, and the change amount of the length measured by the measuring means with respect to the reference length is obtained, and the corresponding change amount is obtained. The conveyance amount detection apparatus of the plate-shaped object provided with the correction control part which calculates a correction value, and corrects the conveyance amount of the said plate-shaped object by the said calculation means based on the said correction value. The cutting device of the plate-shaped thing provided with the conveyance quantity detection apparatus of the plate-shaped thing of Claim 1 or 2. The roller is brought into contact with the plate-shaped object to be conveyed, the roller is rotated, and the conveyance amount of the plate-shaped object is detected based on a signal generated according to the rotation amount of the roller,
Measuring two adjacent cutting line intervals of the said plate-shaped object by which cutting line processing was carried out, calculating a correction value based on the change amount of the measured interval with respect to the reference | standard interval of the said gap, and based on the said correction value The conveyance amount detection method of a plate-shaped object which corrects the conveyance amount of a plate-shaped object. The roller is brought into contact with the plate-shaped object to be conveyed, the roller is rotated, and the conveyance amount of the plate-shaped object is detected based on a signal generated according to the rotation amount of the roller,
While cutting a cut line to the said plate-shaped object by a cutting line processing means, it divides | segments the said plate-shaped object along the said cut line by a folding division means,
The length of the direction orthogonal to the said cutting line of the said plate-shaped object divided | segmented was measured by a measuring means, a correction value is calculated based on the amount of change of the length measured by the said measuring means with respect to the reference length of the said length, and the said correction value A conveyance amount detection method of a plate-shaped object which correct | amends the conveyance amount of the said plate-shaped object based on the. A roller which rotates in contact with the plate-like object being conveyed,
Signal generating means for generating a signal in accordance with the amount of rotation of the roller;
Cutting line processing means for traveling along the guide frame and processing the cutting line on the plate;
Control means for controlling the cutting process start time of the plate-shaped object by the cutting line processing means based on the signal;
Measuring means for measuring an interval between two adjacent cut lines of the plate-shaped object which has been cut
The reference interval of the interval is stored, comparing the reference interval with the interval measured by the measurement means, obtaining a change amount of the interval measured by the measurement means relative to the reference interval, and corresponding to the change amount. The cutting line processing apparatus of the plate-shaped object provided with the correction control part which calculates a correction value and correct | amends the cutting line processing start time by the said control means based on the said correction value. A roller which rotates in contact with the plate-like object being conveyed,
Signal generating means for generating a signal in accordance with the amount of rotation of the roller;
Cutting line processing means for traveling along the guide frame and processing the cutting line on the plate;
Bending dividing means for dividing the plate-like article along the cutting line;
Control means for controlling the cutting process start time of the plate-shaped object by the cutting line processing means based on the signal;
Measuring means for measuring a length in a direction orthogonal to the cut line of the plate-shaped object divided by the division;
The reference length of the length is stored, comparing the reference length with the length measured by the measuring means, and obtaining an amount of change in the length measured by the measuring means with respect to the reference length, and corresponding to the amount of change. And a correction control unit for calculating a correction value and correcting a cutting process start time of the plate-shaped object by the control means based on the correction value. The roller is brought into contact with the plate-shaped object to be conveyed, the roller is rotated, and the timing of starting the cutting process of the plate-shaped object by the cutting line processing means is controlled based on the signal according to the rotation amount of the roller.
The distance between two adjacent cutting lines of the plate-shaped object that has been cut off is measured by a measuring means, the amount of change of the gap measured by the measuring means with respect to the reference interval of the gap is calculated, and a correction value corresponding to the change amount. The cutting line processing method of a plate-shaped object which calculates and correct | amends the cutting line starting start time based on the said correction value. The roller is brought into contact with the plate-shaped object to be conveyed, the roller is rotated, and the timing of starting the cutting process of the plate-shaped object by the cutting line processing means is controlled based on the signal according to the rotation amount of the roller.
Measure the length in the direction orthogonal to the cut line of the plate-shaped object divided along the cut line, and calculate a correction value based on the change amount of the length measured by the measure means with respect to the reference length of the length; And a cutting line processing method of a plate-shaped object which correct | amends the cutting line starting start time based on the said correction value.

Images