WO2016194922A1

WO2016194922A1 - Glass product manufacturing apparatus

Info

Publication number: WO2016194922A1
Application number: PCT/JP2016/066100
Authority: WO
Inventors: ▲隆▼英中村; 忠典寺岡; 佐々木　博
Original assignee: 日本電気硝子株式会社
Priority date: 2015-06-01
Filing date: 2016-06-01
Publication date: 2016-12-08
Also published as: JP6617439B2; KR102402842B1; JP2016222503A; CN107848857A; KR20180013950A; TW201700418A; CN107848857B; TWI668191B

Abstract

This glass ribbon manufacturing apparatus 11 includes: non-driven rollers 14a which rotate passively by coming into contact with a glass ribbon G that flows down from a molding portion 12; rotation detection units 21 which detect rotation of the non-driven rollers 14a; a control unit 20 which detects abnormal rotational speeds of the non-driven rollers 14a on the basis of rotation information of the non-driven rollers 14a detected by the rotation detection units 21; and a notification unit 22 which gives notification of the abnormal rotational speeds of the non-driven rollers 14a on the basis of detection of an abnormality by the control unit 20.

Description

Glass article manufacturing equipment

The present invention relates to a glass article manufacturing apparatus, for example, an apparatus for manufacturing a glass ribbon according to the overflow downdraw method.

Conventionally, for example, a glass ribbon manufacturing apparatus disclosed in Patent Document 1 includes a forming unit for forming molten glass into a plate shape, and a roller that rotates while being in contact with the glass ribbon flowing down from the forming unit. . In the glass ribbon manufacturing apparatus of Patent Document 1, a plurality of types of rollers are provided, and a roller that plays a role of pulling the glass ribbon that flows down from the forming portion, a roller that suppresses shrinkage of the glass ribbon to the inner side in the width direction, and the like. Is provided.

Japanese Patent No. 4753067

In a conventional glass ribbon manufacturing device, when an abnormality is seen in the shape of the molded glass ribbon, the operator grasps that there is some abnormality in the manufacturing equipment such as the forming part and the roller, and the abnormality However, in the prior art, there is a long time lag from when an abnormality occurs in the manufacturing facility until the worker takes the countermeasure.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a glass article manufacturing apparatus that enables quick countermeasures against abnormalities in manufacturing equipment.
An apparatus used for manufacturing a glass article according to one aspect of the present invention includes: a molding unit configured to flow down a glass ribbon; at least one roller rotating in contact with the glass ribbon flowed down from the molding unit; An abnormality detection unit that detects an abnormal state of one roller and a coping unit that performs a coping operation based on the abnormality detection by the abnormality detection unit.

According to this configuration, when a state abnormality occurs in at least one roller, the state abnormality is detected by the abnormality detection unit, and a coping operation is performed by the coping unit based on the abnormality detection. It is possible to take quick measures against abnormalities in manufacturing equipment.

In the glass article manufacturing apparatus, it is preferable that the handling unit includes a notifying unit that reports a state abnormality of the at least one roller based on an abnormality detection by the abnormality detecting unit.
According to this configuration, when a state abnormality occurs in at least one roller, the abnormality is notified by the notification unit, so that the operator can quickly grasp that an abnormality has occurred in the roller or other manufacturing equipment. be able to. As a result, it is possible to promptly execute confirmation of an abnormal location in a manufacturing facility including a forming unit and a roller and response to the abnormality.

In the glass article manufacturing apparatus, it is preferable that the abnormality detection unit detects an abnormality in a rotation speed of the at least one roller.
According to this configuration, various abnormalities in the manufacturing equipment and abnormal shape of the glass ribbon caused by the abnormalities are easily reflected in the rotational speed of the roller. It can cope with many of various abnormalities.

In the glass article manufacturing apparatus, it is preferable that the at least one roller includes a non-driving roller that passively rotates following the flow of the glass ribbon.
According to this configuration, an abnormality of the non-driving roller is detected by the abnormality detection unit. Since the non-driving roller is passively rotated following the flow of the glass ribbon, the abnormal shape of the glass ribbon due to equipment abnormality is easily reflected in the rotational speed of the non-driving roller. For this reason, an operator can grasp | ascertain the shape abnormality of a glass ribbon and by extension, the equipment abnormality which causes it more suitably.

In the glass article manufacturing apparatus, the at least one roller is a plurality of rollers arranged along a flow-down direction of the glass ribbon, and the plurality of rollers are connected to the non-driving roller and a driving source. It is preferable that the abnormality detection unit detects an abnormality in the rotation speed of the non-driving roller.

According to this configuration, in a glass article manufacturing apparatus in which a plurality of rollers are provided along the flow-down direction of the glass ribbon, the worker can more appropriately grasp the abnormal shape of the glass ribbon, and thus the equipment abnormality that causes it. Is possible.

In the glass article manufacturing apparatus, it is preferable that the handling unit includes a retraction drive unit that retreats the at least one roller from the glass ribbon based on an abnormality detection by the abnormality detection unit.

According to this configuration, the roller is retracted from the glass ribbon by the drive of the retracting drive unit based on the abnormality detection by the abnormality detecting unit. Thereby, the influence which the roller in which the state abnormality has produced on the glass ribbon can be suppressed small.

In the glass article manufacturing apparatus, it is preferable that the abnormality detection unit detects an abnormal state of the at least one roller based on a change in the position of the at least one roller.

According to this configuration, since the abnormality detection unit detects an abnormal state of the roller based on the change in the position of the roller, the abnormality detection unit can detect an abnormality such as a shaft shake that has occurred in the roller.

According to the glass article manufacturing apparatus according to some aspects of the present invention, the operator can quickly grasp the abnormality of the manufacturing equipment. Other aspects and advantages of the present invention will become apparent from the following description taken in conjunction with the drawings which illustrate examples of the technical idea of the present invention.

(A) is a schematic block diagram which shows the glass ribbon manufacturing apparatus of embodiment, (b) is a schematic cross section of the glass ribbon manufacturing apparatus of Fig.1 (a). It is a schematic block diagram which shows the glass ribbon manufacturing apparatus of another example. It is a schematic block diagram which shows the glass ribbon manufacturing apparatus of another example.

Hereinafter, an embodiment of a manufacturing apparatus for manufacturing a glass ribbon (band glass) as an example of a glass article will be described with reference to the drawings. Note that in the drawings, for convenience of explanation, some components may be exaggerated or simplified. Further, the dimensional ratio of each part may be different from the actual one.

As shown in FIGS. 1 (a) and 1 (b), the glass ribbon manufacturing apparatus 11 includes a forming portion 12 for forming the glass ribbon G using the downdraw method. The glass ribbon manufacturing apparatus 11 of the present embodiment is an apparatus that manufactures a glass ribbon G by using an overflow downdraw method that is a kind of downdraw method. Examples of the application of the glass ribbon G include display applications such as glass panels of flat panel displays, touch panel applications, photoelectric conversion panel applications, electronic device applications, window glass applications, building material applications, and vehicle applications.

As shown in FIG.1 (b), the shaping | molding part 12 of the glass ribbon manufacturing apparatus 11 has the groove | channel 12a which overflows the molten glass MG, and the 1st guide surface 12b and 2nd guide which guide the flow of the molten glass MG which overflowed. Surface 12c. The second guide surface 12c is located on the opposite side of the first guide surface 12b. A part of the molten glass MG flows along the first guide surface 12 b and another part of the molten glass MG that flows down along the second guide surface 12 c joins at the lower end of the molding part 12. Alternatively, the glass ribbon G is formed by fusing.

The glass ribbon manufacturing apparatus 11 includes at least one roller disposed below the forming unit 12. In the example of FIG. 1A and FIG. 1B, the at least one roller is, for example, one or a plurality of first drive rollers 13, one or a plurality of first drive rollers 13 arranged in order from the upstream in the flow-down direction Z of the glass ribbon G. A plurality of non-drive rollers 14 a, one or more non-drive rollers 14 b, and one or more second drive rollers 15 may be included. Each roller is typically a cylindrical roller. The flow-down direction Z is typically a vertical direction.

The first drive roller 13 is a plurality of first drive roller subsets, each of which includes at least two rollers, which are arranged apart from each other in the width direction X so as to sandwich both ends of the glass ribbon G in the width direction X in the thickness direction Y. It can be. In the example of FIG. 1, the first drive roller 13 includes four rollers arranged so as to sandwich both end portions in the width direction X of the glass ribbon G. Each first drive roller 13 is driven by a motor 16 to rotate. In order to manufacture the glass ribbon G having a predetermined glass width, the first drive roller 13 is brought into contact with both ends of the glass ribbon G in the width direction X so as to suppress the shrinkage of the glass ribbon G to the inner side in the width direction. It is configured.

The non-driving roller 14a is a plurality of non-driving roller subsets each including at least two rollers, which are arranged apart from each other in the width direction X so as to sandwich both ends in the width direction X of the glass ribbon G in the thickness direction Y. obtain. In the example of FIG. 1, the non-driving roller 14 a includes four rollers arranged so as to sandwich both ends in the width direction X of the glass ribbon G at positions different from the first driving roller 13. Unlike the first driving roller 13, each non-driving roller 14 a has a configuration in which a rotational driving force is not applied from a driving source such as a motor, and is so-called rotating passively following the flow of the glass ribbon G. It is a free roller. In order to manufacture the glass ribbon G having a predetermined glass width, the non-driving roller 14a comes into contact with both ends of the glass ribbon G in the width direction X so as to suppress the shrinkage of the glass ribbon G to the inner side in the width direction. It is configured.

Similarly, the non-driving roller 14b is a plurality of non-driving roller subsets, each of which includes at least two rollers, which are arranged apart from each other in the width direction X so as to sandwich both ends of the glass ribbon G in the width direction X in the thickness direction Y. It can be. In the example of FIG. 1, the non-driving roller 14b includes four rollers arranged so as to sandwich both ends of the glass ribbon G in the width direction X at positions different from the non-driving roller 14a. Each non-driving roller 14b is different from the first driving roller 13 in that a rotational driving force is not applied from a driving source such as a motor, and is so-called rotating so as to follow the flow of the glass ribbon G. It is a free roller. In order to manufacture the glass ribbon G having a predetermined glass width, the non-driving roller 14b comes into contact with both ends of the glass ribbon G in the width direction X so as to suppress the shrinkage of the glass ribbon G to the inner side in the width direction. It is configured.

In addition, when giving the role which cools the width direction edge part of the glass ribbon G with respect to said 1st driving roller 13 and

non-driving roller

14a, 14b, a hollow part is made inside

roller

13, 14a, 14b. It is preferable to provide the refrigerant in the hollow portion. And when it comprises so that the width direction edge part of the glass ribbon G may be cooled by the 1st drive roller 13 and the

non-drive rollers

14a and 14b in this way, the shrinkage | contraction to the width direction inner side of the glass ribbon G is suppressed more suitably. be able to.

The second driving roller 15 is a plurality of second driving roller subsets, each of which includes at least two rollers, which are disposed apart from each other in the width direction X so as to sandwich both ends of the glass ribbon G in the width direction X in the thickness direction Y. It can be. In the example of FIG. 1, the second drive roller 15 includes four rollers arranged at positions different from the first drive roller 13 so as to sandwich both end portions in the width direction X of the glass ribbon G. In the present embodiment, the second driving roller 15 is connected so that the two rollers on the front side and the two rollers on the back side can be integrally rotated by a corresponding one rotating shaft 17. The second drive roller 15 is connected to the motor 18 via the rotation shaft 17 and is rotated by the motor 18. The second driving roller 15 disposed on the downstream side of the first driving roller 13 and the

non-driving rollers

14a and 14b rotates with the both end portions in the width direction X of the glass ribbon G sandwiched therebetween, and the glass ribbon G is rotated. Tow in the downflow direction Z. The glass ribbon G pulled by the second drive roller 15 is conveyed to a subsequent process such as a cutting process. Usually, a final glass article is manufactured through a post process, but the glass ribbon G itself may be the final glass article.

The glass ribbon manufacturing apparatus 11 includes a control unit 20 that controls driving of the

motors

16 and 18, a rotation detection unit 21 that detects rotation information of each non-driving roller 14 a, and a notification unit 22.

The rotation detection unit 21 outputs an output signal corresponding to the rotation of the non-driving roller 14a to the control unit 20. The control unit 20 calculates, for example, the rotation speed (circumferential speed) of the non-driving roller 14a based on the output signal from the rotation detection unit 21. Then, when the calculated rotation speed of the non-driving roller 14a is not within a preset normal range, the control unit 20 determines that an abnormality has occurred in the rotation of the non-driving roller 14a and causes the notification unit 22 to malfunction. A detection signal is output.

The notification unit 22 notifies that there is an abnormality in the rotation of the non-driving roller 14a based on the abnormality detection signal input from the control unit 20. In the present embodiment, the notification unit 22 includes a display 23 and a speaker 24, generates an alarm sound from the speaker 24 based on the abnormality detection signal, and warning information that an abnormality has occurred in the rotation of the non-driving roller 14a. Is displayed on the display 23. The control unit 20 is communicably connected to the rotation detection unit 21 via, for example, a wired or wireless communication link 28.

Next, the operation of this embodiment will be described.
The glass ribbon G flowing down from the forming unit 12 has a predetermined glass width secured by the first driving roller 13 and the

non-driving rollers

14a and 14b, and is pulled in the flow-down direction Z by the second driving roller 15. The At this time, the first driving roller 13 and the second driving roller 15 are rotated by

motors

16 and 18, respectively, and the

non-driving rollers

14a and 14b are passively rotated following the flow of the glass ribbon G. The rotational speed (circumferential speed) of the second drive roller 15 that pulls the glass ribbon G is set to be faster than the rotational speed (circumferential speed) of the first drive roller 13, and the first and second drive rollers 13, The

non-driving rollers

14 a and 14 b located between 15 are preferably rotated at a rotational speed (circumferential speed) equal to or higher than the rotational speed of the first drive roller 13 and lower than the rotational speed of the second drive roller 15. As described above, when the first driving roller 13 and the

non-driving rollers

14a and 14b are cooling rollers configured to cool the end portions in the width direction of the glass ribbon G, the width direction of the glass ribbon G is used. The viscosity of the end portion is higher than that of the intermediate portion, and the shrinkage of the glass ribbon G to the inner side in the width direction is more suitably suppressed.

Here, an abnormality occurs in the rotational speed of the non-driving roller 14a due to an abnormality in the non-driving roller 14a and other manufacturing equipment (equipment including the molding unit 12 and the first and second driving rollers 13 and 15). And the rotational speed of the non-driving roller 14a may be faster or slower than the normal range. For example, when an abnormality occurs in the shape of the glass ribbon G reaching the non-driving roller 14a due to some abnormality in the manufacturing equipment above the non-driving roller 14a such as the molding unit 12 or the first driving roller 13, the non-driving roller An abnormality occurs in the rotational speed of 14a. Further, for example, when the smooth rotation of the non-driving roller 14a is hindered by a failure of the bearing that pivotally supports the non-driving roller 14a, or the non-driving roller 14a is shaken (vibration in the direction perpendicular to the axis). If so, an abnormality occurs in the rotational speed of the non-driving roller 14a.

When a rotation abnormality occurs in the non-drive roller 14a, the rotation speed of the non-drive roller 14a calculated by the control unit 20 based on the output signal from the rotation detection unit 21 shows an abnormal value. An abnormality detection signal is output. Based on the abnormality detection signal, the display 23 and the speaker 24 of the notification unit 22 notify the rotation abnormality of the non-driving roller 14a. That is, by this notification, it becomes possible for the operator to know that an abnormality has occurred in the non-driving roller 14a and other manufacturing equipment (such as the molding unit 12 and the first and second driving rollers 13, 15). ing.

Next, characteristic effects of the present embodiment will be described.
(1) The glass ribbon manufacturing apparatus 11 includes a rotation detecting unit 21 that detects the rotation of the non-driving roller 14a, and the state of the non-driving roller 14a based on the rotation information of the non-driving roller 14a detected by the rotation detecting unit 21. A control unit 20 that detects an abnormality, and a notification unit 22 that notifies a state abnormality of the non-driving roller 14a based on the abnormality detection by the control unit 20 are provided. According to this configuration, when a state abnormality occurs in the non-driving roller 14a, the notification unit 22 notifies the state abnormality as a coping operation, so that an abnormality has occurred in the non-driving roller 14a and other manufacturing equipment. An operator can grasp quickly. As a result, it is possible to promptly execute confirmation of an abnormal location in the manufacturing facility including the forming unit 12 and the

various rollers

13, 14 a, 14 b, 15 and response to the abnormality.

(2) An abnormality in the rotational speed of the non-driving roller 14a is detected by the rotation detection unit 21 and the control unit 20, and the abnormality in the rotational speed is notified by the notification unit 22. According to this configuration, various abnormalities in the manufacturing equipment and the abnormal shape of the glass ribbon G resulting therefrom are easily reflected in the rotational speed of the non-driving roller 14a. Can be used to deal with many of the various abnormalities.

(3) The target of abnormality detection by the rotation detection unit 21 and the control unit 20 is the non-driving roller 14a. Since the non-driving roller 14a rotates passively following the flow of the glass ribbon G, the abnormal shape of the glass ribbon G due to equipment abnormality is easily reflected in the rotational speed of the non-driving roller 14a. For this reason, an operator can grasp | ascertain the shape abnormality of the glass ribbon G, and the equipment abnormality which causes it more suitably.

In addition, you may change the said embodiment as follows.
In the above embodiment, the rotational speed of the non-driving roller 14a out of the

non-driving rollers

14a and 14b is detected, and abnormality is detected based on the rotational speed. However, the rotational speed of the non-driving roller 14b or The rotational speeds of both the

drive rollers

14a and 14b may be detected, and an abnormality may be detected based on the rotational speed.

Although not particularly mentioned in the above embodiment, for example, a fluid that retracts the non-driving roller 14a away from the glass ribbon G in the thickness direction Y or the width direction X based on an abnormality detection signal input from the control unit 20 A retraction drive unit 25 (see FIG. 1) such as a pressure cylinder may be provided. In this case, when detecting the rotation abnormality of the non-driving roller 14a, the control unit 20 outputs an abnormality detection signal to the notification unit 22 and the retracting drive unit 25, and the notification unit 22 executes the rotation abnormality notification. The non-driving roller 14 a is retracted in the thickness direction Y or the width direction X with respect to the glass ribbon G by driving the retracting drive unit 25.

According to such a configuration, when a rotation abnormality of the non-driving roller 14a is detected, the non-driving roller 14a is separated from the glass ribbon G by the drive of the retracting drive unit 25. The influence which the roller 14a has on the glass ribbon G can be suppressed small. For example, when the rotation of the non-driving roller 14a becomes extremely slow due to a problem such as a bearing, the glass ribbon G scatters due to contact with the non-driving roller 14a, and the scattered glass becomes the subsequent equipment (second driving roller 15 Or equipment after that).

In this respect, in this configuration, when a rotation abnormality is detected, the non-driving roller 14a is retracted from the glass ribbon G by driving the retracting drive unit 25, so that the glass ribbon G is scattered by the non-driving roller 14a in which the rotation abnormality has occurred. It is possible to avoid such a situation, and it is possible to reduce the influence caused by the rotation abnormality occurring in the non-driving roller 14a. Further, according to such a configuration, since the non-driving roller 14a is automatically retracted based on the abnormality detection, the non-driving roller 14a can be evacuated more quickly as a coping operation.

In the above description, the configuration in which both the notification unit 22 and the retraction drive unit 25 are provided as the coping unit that performs the coping operation based on the abnormality detection signal from the control unit 20 has been described. It is good also as a structure provided only with the drive part 25 as a countermeasure part.

In the above embodiment, the control unit 20 detects the rotation abnormality of the non-driving roller 14a based on the rotation speed of the non-driving roller 14a calculated from the output signal of the rotation detection unit 21, but other than this, for example, rotation detection The rotation abnormality of the non-driving roller 14a may be detected based on the rotational acceleration of the non-driving roller 14a calculated from the output signal of the unit 21. Further, the non-driving roller based on the rotational speed difference (or speed ratio) between the first driving roller 13 and the non-driving roller 14a or the rotational speed difference (or speed ratio) between the second driving roller 15 and the non-driving roller 14a. The rotation abnormality 14a may be detected. In the case where a plurality of drive rollers are provided, it is preferable to detect rotation abnormality by comparing the rotation speed of the drive roller closest to the non-drive roller 14a with the rotation speed of the non-drive roller 14a. . The closer the distance between the rollers is, the closer the normal rotation speed is, and it becomes easier to detect an abnormal state more easily and accurately.

In the above embodiment, the rotation detection unit 21 and the control unit 20 detect a rotation abnormality of the non-driving roller 14a, and the control unit 20 outputs an abnormality detection signal to the notification unit 22 based on the detection of the rotation abnormality. However, it is not particularly limited to this. For example, a displacement abnormality of the non-driving roller 14a may be detected, and the control unit 20 may output an abnormality detection signal to the notification unit 22 based on the detection of the displacement abnormality.

An example of this case is shown in FIG. In the example shown in the figure, an image pickup unit 31 composed of a camera having an image pickup device such as a CCD or CMOS is provided as means for detecting a displacement abnormality of the non-driving roller 14a. The imaging unit 31 images a part or the whole of the non-driving roller 14 a (and the rotation shaft), and outputs the captured image data to the control unit 20. The control unit 20 calculates a displacement characteristic value of the non-driving roller 14a (for example, position information of the non-driving roller 14a) based on the image data obtained by the imaging unit 31. Then, the control unit 20 determines whether or not the displacement (position) of the non-driving roller 14a is abnormal based on the calculated displacement characteristic value of the non-driving roller 14a. 22 outputs an abnormality detection signal.

According to this configuration, for example, when the shaft blurring occurs in the non-driving roller 14a, the displacement characteristic value of the non-driving roller 14a calculated by the control unit 20 shows an abnormal value, and notification from the control unit 20 An abnormality detection signal is output to the unit 22. Based on the abnormality detection signal, the display 23 and the speaker 24 of the notification unit 22 notify the displacement abnormality of the non-driving roller 14a. As a result, the operator can quickly grasp the situation in which a desired glass ribbon G is not formed due to a displacement abnormality such as shaft runout in the non-driving roller 14a by the notification by the notification unit 22.

In the example shown in FIG. 2, the imaging unit 31 is provided as a means for detecting a displacement abnormality of the non-driving roller 14a. However, the present invention is not particularly limited to this. For example, a contact displacement sensor or an optical type is provided. An abnormal displacement of the non-driving roller 14a (or the rotating shaft) may be detected by a non-contact displacement sensor such as.

In the example shown in FIG. 2, the displacement abnormality of the non-driving roller 14a among the

non-driving rollers

14a and 14b is detected by the imaging unit 31, but the displacement abnormality of the non-driving roller 14b or the non-driving roller 14a is detected. , 14b may be configured to detect displacement anomalies.

For example, as shown in FIG. 3, a temperature sensor 32 built in the non-driving roller 14a detects a temperature abnormality of the non-driving roller 14a, and an abnormality detection signal is sent to the notification unit 22 based on the detection of the temperature abnormality. It may be output. In the state where the temperature abnormality occurs in the non-driving roller 14a, the desired shape of the glass ribbon G is not formed. This is particularly noticeable when the non-driving roller 14a is a cooling roller that cools the end of the glass ribbon G in the width direction.

According to such a configuration, when the temperature of the non-driving roller 14a measured by the temperature sensor 32 indicates an abnormal value and an abnormality detection signal is output from the control unit 20 to the notification unit 22, the abnormality detection signal Based on this, the display 23 and the speaker 24 of the notification unit 22 notify the temperature abnormality of the non-driving roller 14a. Thereby, the operator can quickly grasp the situation where the desired glass ribbon G is not formed due to the temperature abnormality of the non-driving roller 14a by the notification by the notification unit 22.

Note that, when shaft shake or temperature abnormality occurs in the non-driving roller 14a, the rotational speed of the non-driving roller 14a tends to fluctuate. It is possible to cope with shaft runout and temperature abnormality of the drive roller 14a.

In the example shown in FIG. 3, the temperature abnormality of the non-driving roller 14a among the

non-driving rollers

14a and 14b is detected by the temperature sensor 32. However, the temperature abnormality of the non-driving roller 14b or the non-driving roller 14a is detected. , 14b may be configured to detect temperature abnormalities.

In the above embodiment, an alarm sound is generated from the speaker 24 based on the abnormality detection signal from the control unit 20, and warning information indicating that an abnormality has occurred in the rotation of the non-driving roller 14a is displayed on the display 23. However, the mode of notification by the notification unit 22 is not limited to this, and for example, the notification unit 22 may be configured to notify by turning on a warning lamp.

In the above embodiment, the notification unit 22 is configured to notify the abnormality of the state of the non-driving roller 14a (rotation abnormality in the above embodiment), but other than this, for example, the first and

second driving rollers

13, 15 The notification unit 22 may be configured to notify at least one state abnormality (for example, rotation abnormality). In addition, the notification unit 22 may be configured to notify all the abnormal states of the non-driving roller 14a and the first and

second driving rollers

13 and 15.

In the above embodiment, the first driving roller 13, the non-driving roller 14 a, the non-driving roller 14 b, and the second driving roller 15 are arranged in order from the upstream side below the molding unit 12. The roller configuration below is not limited to the above embodiment, and may be changed as appropriate according to the configuration. In the above-described embodiment, the example in which each second driving roller 15 is integrally rotated by one rotating shaft 17 on the front surface side and the back surface side of the glass ribbon G has been described. 15 may be rotated in a so-called cantilever state by an individual rotating shaft.

In the above-described embodiment, the glass article manufacturing apparatus 11 includes the molding unit 12 that molds the glass ribbon G using the downdraw method, but is not limited to the downdraw method, and a molding unit that molds the glass downward. It can also be changed.

· Molten glass MG may be called liquid glass or fluid glass. The forming unit 12 may be referred to as a suspended forming block configured to form a flowable glass film from the molten glass MG. The

rollers

13, 14a, 14b, and 15 are examples of at least one roller configured to adjust the glass width of the flowable glass film in order to produce a glass ribbon G having a predetermined glass width.

The control unit 20 includes a receiver for receiving a signal supplied from the outside of the control unit 20 in a wired or wireless manner, and a transmitter for transmitting the signal to the outside of the control unit 20 in a wired or wireless manner. Can be included.

As shown in FIG. 1A, the control unit 20 can include at least one memory 20a and one or more processors 20b that can access the memory 20a. The at least one memory 20a includes computer-executable instructions or software programs configured to implement the functions, methods, or configurations described in the above-described embodiments when executed by one or more processors 20b. be able to. For example, the computer-executable instructions or software program includes instructions and a processor configured so that the processor 20b receives a sensor signal from at least one roller sensor such as the rotation detector 21, the imaging unit 31, and the temperature sensor 32. 20b can include a command configured to determine whether an abnormal event has occurred that may be an abnormal rotation event of at least one roller in accordance with the sensor signal. The computer readable instructions or software program may further include instructions configured to cause the processor 20b to generate an abnormality detection signal in response to the occurrence of the abnormal event.

The control unit 20 may be realized by a plurality of individual computers each including a memory 20a and a processor 20b, or may be realized by a single computer. Accordingly, the present invention includes a computer-readable recording medium (also referred to as a non-transitory medium) that stores computer-executable instructions configured to implement the functions, methods, or configurations described in the above-described embodiments. The computer readable medium may be any medium that can be accessed by one or more computer processors, such as RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage device, And any combination thereof.

-You may combine said embodiment and modification suitably.
The present disclosure includes the following technical ideas. Note that member numbers may be given for ease of understanding rather than limitation.

(A) The glass article manufacturing apparatus according to any one of claims 1 to 4, wherein the abnormality detection unit detects an abnormality of the displacement of the roller.

According to this configuration, when a displacement abnormality occurs in the roller, the displacement abnormality is notified by the notification unit, so that the operator can quickly grasp that a displacement abnormality such as shaft runout has occurred in the roller. it can.

(B) In the glass article manufacturing apparatus according to any one of claims 1 to 4 and appendix (a), the abnormality detector detects an abnormality in the temperature of the roller. Article manufacturing equipment.

According to this configuration, when the temperature abnormality occurs in the roller, the temperature abnormality is notified by the notification unit, so that the operator can quickly grasp that the temperature abnormality has occurred in the roller.
(C) In some implementations, the apparatus (11) for producing a glass ribbon according to the downdraw method comprises a rough molding block (12) including a lowermost edge and the lowermost edge of the coarse molding block (12). At least one roller (14a) disposed below the lowermost edge of the rough forming block and the at least one roller (14a) to be in contact with the flowable glass film flowing downward from And at least one controller (20) configured to determine whether an abnormal event has occurred in the at least one roller and generate an abnormality detection signal in response to the occurrence of the abnormal event. it can.

(D) In some implementations, the device (11) may further comprise a roller sensor (21; 31; 32) for monitoring the state of the at least one roller (14a). The at least one control unit (20) is directly or indirectly connected to the roller sensor via a wired or wireless communication link (28), and the at least one roller is abnormal according to a sensor signal from the roller sensor. It is configured to determine whether an event has occurred.

(E) In some implementations, the device (11) outputs a visual and / or acoustic alert according to the anomaly detection signal supplied from the at least one control unit (20). Alternatively, an acoustic output device (23, 24) can be further provided.

(F) The at least one control unit (20) includes at least one processor (20b) and at least one memory storing a computer readable instruction or software program executed by the at least one processor (20b). 20a). The computer readable instruction or software program includes an instruction configured to cause at least one processor to receive a sensor signal from a roller sensor, and an abnormal rotation event of at least one roller according to the sensor signal. A command configured to determine whether a fault has occurred and a command configured to cause the at least one processor to generate a fault detection signal in response to the occurrence of a rotation fault event. . The computer readable instructions or software program causes the at least one processor to provide the anomaly detection signal to a visual and / or acoustic output device (23, 24) to output a visual and / or acoustic alert. The command may be further included.

The present invention is not limited to the illustrated example. For example, the illustrated features should not be construed as essential to the invention, but rather the subject matter of the invention may be present in fewer features than all the features of the particular embodiment disclosed. The present invention is defined by the terms of the claims, and is intended to include any modifications within the scope equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 11 ... Glass ribbon manufacturing apparatus (glass article manufacturing apparatus), 12 ... Molding part, 13 ... 1st drive roller, 14a, 14b ... Non-drive roller, 15 ... 2nd drive roller, 16, 18 ... Motor (drive source) , 20 ... control unit (abnormality detection unit), 21 ... rotation detection unit (abnormality detection unit), 22 ... notification unit (coping unit), 25 ... retraction drive unit (coping unit), 31 ... imaging unit (abnormality detection unit) 32 ... Temperature sensor (abnormality detection unit), G ... Glass ribbon.

Claims

An apparatus used in the manufacture of glass articles,
A molding part for forming a glass ribbon by flow down;
At least one roller rotating in contact with the glass ribbon flowing down from the molding part;
An abnormality detection unit for detecting an abnormal state of the at least one roller;
An apparatus comprising: a coping unit that performs coping operation based on abnormality detection by the abnormality detection unit.
The apparatus according to claim 1, wherein the coping section includes a notifying section for notifying a state abnormality of the at least one roller based on an abnormality detection by the abnormality detecting section.
The apparatus according to claim 1 or 2, wherein the abnormality detection unit detects an abnormality in a rotation speed of the at least one roller.
The apparatus according to any one of claims 1 to 3, wherein the at least one roller includes a non-driven roller that passively rotates following the flow of the glass ribbon.
The at least one roller is a plurality of rollers disposed along a flow direction of the glass ribbon;
The plurality of rollers include the non-driving roller and at least one driving roller that is connected to a driving source and actively rotates,
The apparatus according to claim 4, wherein the abnormality detection unit detects an abnormality in a rotation speed of the non-driving roller.
The apparatus according to any one of claims 1 to 5, wherein the coping section includes a retreat drive section that retreats the at least one roller from the glass ribbon based on abnormality detection by the abnormality detection section. .
The apparatus according to any one of claims 1 to 6, wherein the abnormality detection unit detects an abnormal state of the at least one roller based on a change in a position of the at least one roller.