KR102410718B1 - Glass plate manufacturing apparatus - Google Patents

Abstract

With respect to the glass ribbon G continuously shape|molded by the down-draw method, while it is comprised so that the snap cutting by formation of the scribe line S and application of a bending stress may be performed repeatedly, while following and descending to the glass ribbon G The scribe mechanism 2 which performs the formation operation|movement which forms the scribe line S, and the feedback operation|movement returning upward, the snap operation which performs snap cutting while following and descend|falling to the glass ribbon G, and the return|return returning upwards About the manufacturing apparatus 1 of the glass plate provided with the snap mechanism 3 which performs an operation|movement, it was set as the structure which the scribing mechanism 2 and the snap mechanism 3 mutually independently move up and down. Thereby, it becomes possible to improve the manufacturing efficiency of a glass plate.

Description

Glass plate manufacturing apparatus {GLASS PLATE MANUFACTURING APPARATUS}

This invention relates to the manufacturing apparatus of the glass plate which forms a scribe line in the glass ribbon continuously shape|molded by the down-draw method, and snap-cuts a glass ribbon by giving bending stress to the site|part in which the scribe line was formed.

As is already known, glass plates are used as glass substrates for flat panel displays such as liquid crystal displays, plasma displays, organic EL displays, and field emission displays, or used as cover glasses for smartphones and tablet PCs, etc. It is mounted on a variety of electronic devices.

As one of the manufacturing methods of this glass plate, the method of cutting out a glass plate by cutting|disconnecting the glass ribbon continuously shape|molded by the down-draw method typified by the overflow down-draw method, the slot down-draw method, the re-draw method, etc. for every predetermined length is mentioned. have. And, an example of the apparatus used for such a manufacturing method is disclosed in patent document 1.

The manufacturing apparatus of the glass plate disclosed by the same document is equipped with the scribing mechanism (scoring apparatus in the same document) which forms a scribe line (score line in the same document) along the width direction with respect to the glass ribbon conveyed downward after shaping|molding. Moreover, it is equipped with the snap mechanism (in this document, a glass plate engaging apparatus) which snap-cuts a glass ribbon by applying bending stress to the site|part in which the scribe line was formed. And the apparatus has a structure which repeatedly performs the formation of a scribe line by a scribe mechanism, and snap cutting by a snap mechanism.

In addition, this glass plate manufacturing apparatus has the structure which follows and descend|falls to a glass ribbon as a scribe mechanism and a snap mechanism are integrated in formation of a scribe line, and performing snap cutting. That is, between the start of the formation of the scribe line and the completion of snap cutting, the scribe mechanism and the snap mechanism both follow and descend on the glass ribbon, and are configured to move to a height position where snap cutting is completed. In addition, after completion of snap cutting, the scribe mechanism and the snap mechanism return to the upper side as one body, and move to a height position where the formation of the scribe line is started, thereby preparing for the next scribe line formation and execution of snap cutting. is made of

Japanese Patent Laid-Open No. 2002-137930

However, when manufacturing a glass plate using the manufacturing apparatus of the said glass plate, there existed a problem to be solved as follows.

That is, in the manufacturing apparatus of the said glass plate, even after formation of a scribe line is completed, while a snap cutting is completed, a scribing mechanism continues to follow and descend|fall down to a glass ribbon together with a snap mechanism. Further, after the snap cut is completed, the snap mechanism passes through the height position for starting the next snap cut together with the scribe mechanism, and returns to the height position where the formation of the scribe line located higher is started. That is, both of the scribe mechanism and the snap mechanism are moved up and down excessively outside the range in which their function is required. Therefore, there existed a problem that the manufacturing efficiency of a glass plate will inevitably deteriorate only by the part in which both are moving up and down excessively.

This invention made in view of such a situation makes it a technical subject to improve the manufacturing efficiency of this glass plate, when manufacturing a glass plate by snap-cutting the glass ribbon continuously shape|molded by the down-draw method.

The present invention devised in order to solve the above technical problem is the formation of a scribe line along the width direction to one side for a glass ribbon that is continuously formed by the down-draw method and conveyed downward, and the scribe line is formed with the scribe line A scribe mechanism configured to repeatedly perform snap cutting of the glass ribbon by applying a bending stress to the forming portion, and performing a forming operation of forming a scribe line while following and descending on the glass ribbon and a return operation of returning upward; An apparatus for manufacturing a glass plate provided with a snap mechanism for performing a snap operation for cutting a cut-out portion located below a scribe line from a glass ribbon and a return operation for returning upward by performing snap-cutting while following and descending on the ribbon, comprising: It is characterized in that the mechanism and the snap mechanism are configured to be operable independently of each other.

According to this configuration, since the scribing mechanism and the snap mechanism are configured to be operable independently of each other, each of the scribing mechanism and the snap mechanism only needs to move up and down only within the range in which their functions are required. That is, after the formation of the scribe line is completed, the scribing mechanism does not need to follow and drop the range for performing snap cutting to the glass ribbon. Further, the snap mechanism does not need to move upward the range for carrying out the formation of the scribe line after the snap cutting is completed. As a result, it becomes possible to improve the manufacturing efficiency of a glass plate.

In the above configuration, it is preferable that the scribe mechanism starts the return operation before the snap mechanism completes the snap operation.

In this way, the scribe mechanism can start preparing for the next scribe line formation before the snap cutting of the glass ribbon by the snap mechanism is completed.

In the above configuration, it is preferable that the snap mechanism completes the returning operation before the scribe mechanism completes the forming operation.

In this way, it becomes possible to complete the preparation for initiating snap cutting of the glass ribbon by the snap mechanism before the formation of the scribe line by the scribe mechanism is completed.

In the above configuration, it is preferable that after the scribing mechanism completes the forming operation, the scribing mechanism is configured to continuously start the feedback operation.

In this way, after the formation of the scribe line by the scribe mechanism is completed, it becomes possible for the scribe mechanism to continuously start preparation for the formation of the next scribe line.

In the above configuration, it is preferable that after the snap mechanism completes the snap operation, the snap mechanism is configured to continuously start the return operation.

In this way, after the snap cut|disconnection of the glass ribbon by a snap mechanism is completed, a snap mechanism can start preparation of the next snap cut|disconnection of a glass ribbon continuously.

In the above configuration, it is preferable that the scribing mechanism has a cutter wheel that forms a scribe line by traveling along the width direction on one side of the glass ribbon.

In this way, since the scribe line is formed by the cutter wheel, it becomes possible to form the scribe line at high speed.

In the above configuration, the snap mechanism has a bending stress applying member that curves the scribe line forming part so that one side is convex by rotating it from one side to the other in a state in which the cut-out part is supported, and the bending stress applying member is It is preferable to be comprised so that rotation is possible centering on the central axis line extended in the width direction.

In this way, the cut-out part cut out from the glass ribbon will be in a state moved from one side to the other side before cutting in accordance with the rotation of the bending stress applying member at the time of snap cutting. Here, when the cut-out part is conveyed to the downstream process after snap cutting, it is efficient if the cut-out part is continuously moved in a direction from one side to the other side, which is the movement direction of the cut-out part at the time of snap cutting, so that it is conveyed to the downstream process. conveyance can be performed. In addition, if it stands up from the attitude|position immediately after cutting out a cut-out part and sets it as a vertical position, it can be set as the attitude|position suitable for conveyance. And, according to the above configuration, since the bending stress imparting member supporting the cut-out portion can rotate about the central axis, the cut-out portion can be placed in the vertical position by rotating the bending stress-applying member after snap cutting. . That is, it becomes possible to change the cut-out part moved from one surface side to the other surface side at the time of snap cutting from the position after movement to a vertical position after snap cutting. Thereby, the said conveyance form can be implement|achieved and it becomes possible to improve the manufacturing efficiency of a glass plate further.

Said structure WHEREIN: It is preferable that a snap mechanism equips each one side and the other side of a glass ribbon with the rocking|fluctuation regulating means which regulates the rocking|fluctuation of the thickness direction of the glass ribbon after snap cut|disconnection.

A glass ribbon on which a scribe line is formed and snap cut is made by the glass plate manufacturing apparatus is placed in a forming area of the glass ribbon, and is placed in a suspended state by a pair of rollers that clamp the glass ribbon in the thickness direction. And, like the apparatus for manufacturing a glass plate according to the present invention, when the scribing mechanism and the snap mechanism are configured to be operable independently of each other, compared with the case where both mechanisms are configured to operate integrally, the pair of rollers The distance from to the lower end of the glass ribbon (the length of the portion suspended by the pair of rollers in the glass ribbon) tends to become long. Therefore, after performing snap cut|disconnection of a glass ribbon only for the part for which this distance became long, the glass ribbon after snap cut|disconnection becomes easy to rock|fluctuate in the thickness direction. And when a glass ribbon rock|fluctuates, there exists a possibility that a glass ribbon and the machine etc. arrange|positioned along the conveyance path|route of a glass ribbon may contact, and a glass ribbon may be damaged. However, according to the said structure, since the rocking|fluctuation in the thickness direction of a glass ribbon is regulated by the rocking|fluctuation regulating means with which the snap mechanism was equipped, it is possible to exclude the above concern accurately.

In the above configuration, it is preferable that the rocking regulating means is a roller.

In this way, since the rocking|fluctuation regulating means is a roller, it is possible to avoid generation|occurrence|production of the situation like a glass ribbon being damaged by sliding of a rocking|fluctuation control means and a glass ribbon.

(Effects of the Invention)

As mentioned above, according to this invention, when manufacturing a glass plate by snap-cutting the glass ribbon continuously shape|molded by the down-draw method, the manufacturing efficiency of this glass plate can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the outline of the manufacturing apparatus of the glass plate by 1st Embodiment of this invention.
It is a side view which shows the outline of the manufacturing apparatus of the glass plate by 1st Embodiment of this invention.
It is the top view which looked at the manufacturing apparatus of the glass plate by 1st Embodiment of this invention from the AA direction shown in FIG.
It is an enlarged plan view which enlarges and shows the periphery of the support roller which the deformation|transformation provision mechanism has.
It is the top view which looked at the manufacturing apparatus of the glass plate by 1st Embodiment of this invention from BB direction which shows in FIG.
6 is an enlarged plan view showing the periphery of the cutter wheel and the wheel support roller included in the scribing mechanism.
Fig. 7 is a longitudinal side view of the periphery of the cutter wheel and the wheel support roller included in the scribing mechanism as viewed from the DD direction in Fig. 6 .
Fig. 8 is an enlarged plan view showing the periphery of the cutter wheel and the wheel support roller included in the scribing mechanism.
It is the front view which looked at the manufacturing apparatus of the glass plate by 1st Embodiment of this invention from CC direction which shows in FIG.
Fig. 10 is an enlarged side view showing the periphery of the bending stress applying member included in the snap mechanism.
Fig. 11 is an enlarged plan view showing the periphery of the swing regulating roller included in the snap mechanism.
It is an enlarged plan view which enlarges and shows the periphery of the gas injection nozzle and suction nozzle which the snap mechanism has.
Fig. 13 is an enlarged side view showing an enlarged periphery of a fulcrum bar of the snap mechanism;
Fig. 14 is an enlarged side view showing an enlarged periphery of a fulcrum bar of the snap mechanism;
Fig. 15 is an enlarged side view showing an enlarged periphery of a fulcrum bar of the snap mechanism;
It is a front view which shows the outline of the manufacturing apparatus of the glass plate by 2nd Embodiment of this invention.
Fig. 17 is an enlarged side view showing the periphery of the bending stress applying member included in the snap mechanism.

EMBODIMENT OF THE INVENTION Hereinafter, the manufacturing apparatus of the glass plate by embodiment of this invention is demonstrated with reference to attached drawing. In addition, the width direction of a glass ribbon is shown by "X-X direction" in an accompanying drawing, the longitudinal direction of a glass ribbon is shown by "Y-Y direction", and the thickness direction of a glass ribbon is shown by "Z-Z direction."

First, the outline|summary of the manufacturing apparatus of the glass plate by 1st Embodiment of this invention is demonstrated.

<First embodiment>

As shown in FIG.1 and FIG.2, the manufacturing apparatus 1 of the glass plate by 1st Embodiment of this invention is continuously shape|molded by the down-draw method, and the glass ribbon G which has the flexibility conveyed downward (example For example, by cut|disconnecting 700 micrometers or less in thickness for every predetermined length, it is an apparatus for continuously cutting out the glass plate Gx as a cutout part from the said glass ribbon G. The glass plate manufacturing apparatus 1 is a scribe line along the width direction (X-X direction) with respect to the surface Ga of the glass ribbon G (the surface Ga among the front and back surfaces Ga, Gb of the glass ribbon G) It is comprised so that formation of S and snap cutting of the glass ribbon G by application of bending stress to the scribe line formation part Gs in which the scribe line S was formed may be performed repeatedly. In addition, in FIG. 1 and FIG. 2, illustration of a part of components of the manufacturing apparatus 1 of a glass plate is abbreviate|omitted, and the component which abbreviate|omitted illustration in FIG. 1 and FIG. 2 is shown after FIG.

As shown by arrows E-E in FIG. 1 , the apparatus 1 for manufacturing the glass plate is a forming operation of forming a scribe line S while following and descending on a glass ribbon G, and upward after the formation of the scribe line S A scribing mechanism 2 for performing a feedback operation is provided. Moreover, on the downstream side of the conveyance path of the glass ribbon G from the scribing mechanism 2, as shown by arrow F-F in FIG. A snap mechanism 3 for performing a return operation to return upward after cutting is provided. The scribe mechanism 2 and the snap mechanism 3 can vertically move independently of each other, and the scribe mechanism 2 moves vertically with the position indicated by the solid line in FIG. do. On the other hand, the snap mechanism 3 moves up and down, with the position shown by the dashed-dotted line in FIG. 1 being the upper end, and the position shown by the solid line being the lower end.

Moreover, the manufacturing apparatus 1 of a glass plate crosswise direction (X-X direction) the glass ribbon G carried in the scribing mechanism 2 to the upstream of the conveyance path|route of the glass ribbon G rather than the scribing mechanism 2 It is provided with the deformation|transformation provision mechanism 4 which curves so that the surface Ga side may become convex along it. Moreover, the conveyance mechanism 5 for receiving from the snap mechanism 3 the glass plate Gx cut out by execution of snap cutting|disconnection and conveying to a downstream process is provided.

Here, the glass ribbon formed by the down-draw method includes an ineffective portion removed in the manufacturing process of the product glass plate at both ends in the width direction. In addition, the ineffective portion includes an edge portion having a larger thickness than other portions. In the following description, in the case of indicating a portion of the non-effective portion excluding the edge portion, it is indicated as an "ineffective portion (Gu)", and when indicating an edge portion, it is indicated as an "edge portion (Gm)".

Hereinafter, the detail of the deformation|transformation provision mechanism 4 is demonstrated.

The deformation imparting mechanism 4 imitates a curved surface along the width direction (X-X direction) that the glass ribbon G originally has and curves the glass ribbon G so that the surface Ga side becomes convex. As shown in FIG. 2, two sets of this strain provision mechanism 4 are arrange|positioned along the conveyance path|route of glass ribbon G, and these two machines have the same structure. As shown in FIG. 3, each of the both deformation|transformation provision mechanism 4 is the above-mentioned in the two places spaced apart from each other along the width direction on the front surface Ga side of glass ribbon G, and the back surface Gb side. It has the support roller 4a as a contact member which contacts the glass ribbon G in each of two places located mutually of two places. While the two support rollers 4a on the side of the front Ga and the two support rollers 4a on the side of the back surface Gb are symmetrically arranged on the basis of the width direction center Gc of the glass ribbon G, , it is arrange|positioned so that it may contact the ineffective part Gu which exists in the width direction both ends of the glass ribbon G. And the glass ribbon G is pinched|interposed by the support roller 4a by the side of the front Ga and the support roller 4a by the side of the back surface Gb in the thickness direction (Z-Z direction). In addition, the support roller 4a by the side of the front surface Ga and the support roller 4a by the side Gb are both free rollers.

Each of the support rollers 4a is connected to the air cylinder 4b via a ball screw (not shown), respectively, and each air cylinder 4b has a front surface (Ga) side and a back surface (Ga) side of the glass ribbon G, respectively. It is attached to the frame 6 arranged on the Gb) side. And, each support roller 4a can be moved along the thickness direction (Z-Z direction) of the glass ribbon G, as indicated by arrows H-H in FIG. 3 by adjusting the increase/decrease of the internal pressure of each air cylinder 4b. In addition, it is possible to perform fine adjustment of the position along the thickness direction by moving back and forth by the ball screw. Thereby, the support roller 4a by the side of the front Ga and the support roller 4a by the side Gb are moved, and the position along the thickness direction of the glass ribbon G of each support roller 4a is By adjusting, it is possible to arbitrarily change the curvature (curvature) along the width direction (X-X direction) of the glass ribbon G.

Here, when sandwiching the glass ribbon G with the support roller 4a on the front surface Ga side and the support roller 4a on the back surface Gb side, the glass ribbon G is inserted along the width direction (X-X direction) In order to curve reliably, as shown in FIG. 4, the overlap value J (both support rollers 4a) of the support roller 4a on the side of the adjacent surface Ga and the support roller 4a of the back surface Gb side is the It is preferable to make it into the range of 3 mm - 100 mm (overlapping value) at the time of seeing from the direction along a rotation axis. Further, the separation distance K (the separation distance in the direction along the rotation axis of both support rollers 4a) between the support roller 4a on the side of the adjacent front surface Ga and the support roller 4a on the back surface Gb side is It is preferable to set it as the range of 30 mm - 500 mm. Moreover, in order to carry in the glass ribbon G into the scribe mechanism 2 in the state which maintained the curvature along the width direction stably, as shown in FIG. 2, the scribing mechanism 2 performs formation of the scribe line S. It is preferable that the separation distance L (separation distance along the conveyance path of the glass ribbon G) from the starting height position to the strain imparting mechanism 4 closest to the scribing mechanism 2 falls within the range of 100 mm to 1500 mm. do.

By the structure demonstrated above, the glass ribbon G carried in the scribing mechanism 2 will be in the curved state so that the surface Ga side may become convex along the width direction (X-X direction). Moreover, in this glass ribbon G, the one side site|part and the site|part on the other side which bordered the width direction center Gc will be in the state curved symmetrically.

Hereinafter, a modified example of the deformation|transformation provision mechanism 4 is demonstrated.

In this embodiment, although the support roller 4a is used as a contact member which contacts the glass ribbon G, it is not limited to this. For example, instead of each support roller 4a, you may arrange|position a long belt conveyor (a conveyance direction is downward from upper direction) in the longitudinal direction (Y-Y direction) of the glass ribbon G. Moreover, you may arrange|position the round bar etc. extended in the longitudinal direction of the glass ribbon G instead of each support roller 4a.

Hereinafter, the detail of the scribing mechanism 2 is demonstrated.

The scribe mechanism 2 is a cutter as a forming member which forms the scribe line S by traveling along the width direction (X-X direction) on the surface Ga of the glass ribbon G, as shown in FIG.5 and FIG.6. While supporting the wheel 2a and the cutter wheel 2a running through the glass ribbon G from the rear surface Gb side, and in synchronization with the cutter wheel 2a, on the rear surface Gb along the width direction It has a wheel support roller 2b as a formation auxiliary member which travels. The diameter D2 of the wheel support roller 2b is larger than the diameter D1 of the cutter wheel 2a. In addition, before and after the advancing direction M of the cutter wheel 2a and the wheel support roller 2b, the cutter wheel 2a and the wheel support roller 2b while pinching the glass ribbon G in the thickness direction (Z-Z direction) ) and a pair of clamping rollers 7 running along the width direction are respectively arranged. And the cutter wheel 2a, the wheel support roller 2b, and each clamping roller 7 can imitate the curvature along the width direction of the glass ribbon G, and drive|work is enabled. In addition, both the wheel support roller 2b and each pinching roller 7 are free rollers.

Among the plurality of clamping rollers 7, the clamping roller 7 (hereinafter referred to as a specific clamping roller 7a) running on the surface Ga of the glass ribbon G behind the cutter wheel 2a is different. It has a shape different from that of the clamping roller 7 . As shown in FIG. 7, the other clamping roller 7 is formed in the cylindrical shape. On the other hand, the specific clamping roller 7a has a relatively small diameter portion 7aa and a relatively small diameter portion 7aa that rolls on the surface Ga of the glass ribbon G and is connected to both sides of the small diameter portion 7aa, respectively. As a result, it has a large diameter portion 7ab with a large diameter. And the specific clamping roller 7a is comprised so that the small diameter part 7aa may ride in the state which rode the scribe line S formed by the cutter wheel 2a. Thereby, only the large-diameter part 7ab will be in the state which contacted the surface Ga of the glass ribbon G among the small-diameter part 7aa and the large-diameter part 7ab during running of the specific clamping roller 7a.

The cutter wheel 2a and the two clamping rollers 7 running on the surface Ga (hereinafter, collectively referred to as the surface traveling group 8) use a servomotor as a power source as shown in FIG. It is connected to the conveyor 12 provided with the drive wheel 9 driven by this, the driven wheel 10, and the belt 11 wound around these. As for this conveyor 12, while the width direction (X-X direction) of the glass ribbon G becomes a conveyance direction, it is possible to reverse the direction in which the belt 11 turns. And when the belt 11 turns according to rotation of the drive wheel 9, the surface traveling group 8 moves along the width direction of the glass ribbon G.

As shown in Fig. 5, the cutter wheel 2a and the two clamping rollers 7 constituting the surface traveling group 8 are connected to the conveyor 12 by respective ball screws 12a connected to each of these. It is possible to move also along the thickness direction (Z-Z direction) of glass ribbon G in a state. Each drive of each ball screw 12a is controlled by a servo mechanism (not shown). And the surface traveling group 8 imitates the curvature along the width direction of the glass ribbon G and drive|works by moving also along the thickness direction during movement along the width direction (X-X direction) of the glass ribbon G.

As shown in FIG. 1, the conveyor 12 is arrange|positioned in the casing 13 which accommodated this. And, as shown in Fig. 2, as the casing 13 moves up and down along the guide 16 provided in the frame 6 by the ball screw 15 connected to the servomotor 14, the conveyor 12 moves. move up and down

Similarly, as shown in Fig. 5, each of the wheel support roller 2b and the two clamping rollers 7 running on the rear surface Gb (hereinafter, these are collectively referred to as the rear surface running group 17) While connected to the ball screw 18a (a ball screw having the same configuration as the ball screw 12a), it has the same configuration as the conveyor 12 as shown in FIG. 12) and is connected to a conveyor 18 disposed opposite to it.

With the configuration described above, when the scribing mechanism 2 performs the forming operation, both the conveyors 12 and 18 are at the same speed as the conveying speed of the glass ribbon G, and the front surface Ga side and the back surface Gb ) side, in the state mutually synchronized, follows and descends to the glass ribbon G. And during the following descent|falling with respect to the glass ribbon G of both conveyors 12 and 18, the surface traveling group 8 and the back traveling group 17 curve along the width direction (X-X direction) of the glass ribbon G. imitate driving. In addition, in this embodiment, it is controlling so that the front surface traveling group 8 and the back surface traveling group 17 may drive|work by imitating the curvature which the said deformation|transformation provision mechanism 4 gave to the glass ribbon G. In addition, in the glass ribbon G, the cutter wheel 2a, the cutter wheel 2a, so that the shape of the part sandwiched by the front running group 8 and the back running group 17 (the part which was cross-hatched in FIG. 6) may become flat; The relative positional relationship between the wheel support roller 2b and each clamping roller 7 is controlled. When the formation of the scribe line S with respect to the glass ribbon G is completed, the following descent|falling with respect to the glass ribbon G of both conveyors 12 and 18 stops.

On the other hand, when the scribing mechanism 2 performs the feedback operation, both conveyors 12 and 18 move upward in a state in synchronization with each other on the front surface Ga side and the back surface Gb side. And, during the upward movement of both conveyors 12 and 18, the belt 11 turns in the opposite direction to that during the forming operation, and the front running group 8 and the rear running group 17 are separated from the glass ribbon G. It moves in the direction opposite to that during the forming operation along the width direction (X-X direction). At this time, by the driving of the ball screw 12a and the ball screw 18a controlled by the servo mechanism, the front traveling group 8 and the back traveling group 17 are moved along the thickness direction (Z-Z direction) of the glass ribbon. By moving so that it may separate from this glass ribbon G, it is controlled so that both traveling groups 8 and 17 may not contact glass ribbon G during return operation|movement. And when both conveyors 12 and 18 return to the height position which starts formation of the scribe line S (the scribe line S formed next), these upward movement will stop.

Hereinafter, a modified example of the scribing mechanism 2 is demonstrated.

In this embodiment, although the cutter wheel 2a is used as a forming member which forms the scribe line S, it is not limited to this, By moving on the surface Ga of the glass ribbon G, the scribe line ( As long as it can form S), you may use another thing. For example, as the forming member, a needle-shaped forming blade or the like may be used. Moreover, you may use things other than the wheel support roller 2b also about a formation auxiliary member, and what is necessary is just what can support the forming member currently moving through the glass ribbon G.

In addition, in this embodiment, although the surface traveling group 8 and the back side traveling group 17 are made to travel by imitating the curve applied to the glass ribbon G by the deformation|transformation provision mechanism 4, it is not limited to this. . For example, while detecting the curvature of the glass ribbon G just before being carried in to the scribing mechanism 2 with the some displacement sensor arranged along the width direction (X-X direction) of the glass ribbon G, a detection result You may make it drive|work by imitating the curvature along the width direction of the glass ribbon G based on the surface traveling group 8 and the back side traveling group 17 based on this. If it does in this way, even when the glass ribbon G has a curvature, it becomes possible to form the scribe line S reliably.

Moreover, in this embodiment, the cutter wheel 2a, the wheel support roller 2b, and each clamping roller 7 so that the shape of the part pinched|interposed by the surface traveling group 8 and the back traveling group 17 may become flat. ) and the relative positional relationship between them is controlled. However, it is not limited to this, and between the cutter wheel 2a, the wheel support roller 2b, and each clamping roller 7 so that the curvature of the part sandwiched by the both traveling groups 8 and 17 is maintained. may control the relative positional relationship of

In addition, instead of the specific clamping roller 7a used in this embodiment, in the height position deviated upward or downward from the scribe line S formed by the cutter wheel 2a, the width direction of the glass ribbon G ( You may arrange|position the clamping roller 7 which runs on the surface Ga by imitating the curve along the X-X direction). In addition, instead of each of the clamping rollers 7 used in the frame of this embodiment, a guide roller that moves by imitating the curvature along the width direction of the glass ribbon G while maintaining a gap between it and the glass ribbon G is disposed good to do In this case, with respect to a pair of guide rollers facing each other on the front surface Ga side and the back surface Gb side of the glass ribbon G, the distance between them becomes slightly longer with respect to the thickness dimension of the glass ribbon G, The relative positional relationship between the two is controlled. In addition, you may replace only some clamping roller 7 among the some clamping roller 7 with a guide roller. When performing such substitution, as shown in FIG. 8, the clamping roller 7 (specific clamping roller 7a) which travels on the surface Ga of the glass ribbon G from the rear of the cutter wheel 2a is guided It is preferable to replace it with the roller 7x. In addition, this guide roller 7x is also a free roller. Here, it is preferable that width AA of the clearance gap formed between the guide roller 7x and the surface Ga of the glass ribbon G shall be in the range of 0.5 mm - 5 mm.

In addition, in this embodiment, when the scribing mechanism 2 performs a feedback operation|movement, both conveyors 12 and 18 move upward in the state mutually synchronized on the front surface Ga side and the back surface Gb side, but this is not limited thereto, and both conveyors 12 and 18 may be moved upward, respectively.

Hereinafter, the detail of the snap mechanism 3 is demonstrated.

As shown in Fig. 10, the snap mechanism 3 has a fulcrum bar 19 as a fulcrum member that comes into contact with the scribe line forming portion Gs from the back surface Gb side and serves as a fulcrum of snap cut, and a scribe line S ) A bending stress imparting member ( 20) and a rocking regulating roller 21 as a rocking regulating means for regulating the shaking in the thickness direction (Z-Z direction) of the glass ribbon G after snap cutting (after cutting the glass plate Gx); The gas injection nozzle 22 which injects the gas 22a for blowing off the glass powder Gk which generate|occur|produced according to snap cutting, and the suction nozzle 23 for attracting|sucking the glass powder Gk are provided. Moreover, among the components of these snap mechanisms 3, the rocking|fluctuation regulating roller 21 located at the uppermost position is located below the scribe mechanism 3. As shown in FIG.

As shown in FIG. 9, while the fulcrum bar 19 is extended along the width direction (X-X direction) of the glass ribbon G, the full length is longer than the width dimension of the glass ribbon G. Accordingly, the fulcrum bar 19 is able to contact the full width of the scribe line forming portion Gs. Moreover, as shown in FIG. 5, the site|part which contacts the scribe line forming part Gs in the fulcrum bar 19 is curved in the circular arc shape in planar view. Moreover, as shown in FIG. 10, this contact part is formed in the convex curved surface in a side view.

The fulcrum bar 19 is connected to an air cylinder (not shown), and according to the increase or decrease of the internal pressure of the air cylinder, as indicated by arrows N-N in FIG. 10, the thickness direction (Z-Z direction) of the glass ribbon G Therefore, it is possible to move it. Thereby, as for the fulcrum bar 19, the approach to the glass ribbon G, and separation from the glass ribbon G are enabled. As shown in FIG. 2 , the air cylinder is fixed to a plate 27 that moves vertically along a guide 26 provided in the frame 6 by a ball screw 25 connected to a servomotor 24 . Then, the air cylinder and the fulcrum bar 19 move up and down according to the vertical movement of the plate 27 .

As shown in FIG. 10, the bending stress application member 20 is a some chuck 20a as a some support member (support body) which supports the glass plate Gx, and the some chuck|zipper 20a of the glass plate Gx. It has a snap arm 20b as a holding member which holds each slidably along the thickness direction (Z-Z direction).

The plurality of chucks 20a are arranged to be spaced apart from each other along the edge portions Gm existing at both ends in the width direction (X-X direction) of the glass plate Gx, and each of these grips the edge portion Gm, and It is possible to perform the cancellation. Each chuck 20a has a pair of claws 20aa that are opened and closed by air pressure, as indicated by arrows P-P in the figure, and the edge portion Gm is gripped by the pair of claws 20aa. . In addition, each chuck 20a can set its posture arbitrarily by rotating around an axis 28 extending along the width direction of the glass ribbon G, as indicated by arrows Q-Q in the figure. .

As shown in FIG. 1, the snap arm 20b pinches|interposes the glass plate Gx in the width direction (X-X direction), and a pair is provided. As shown in Fig. 10, each of the pair of snap arms 20b is attached to a straight bar-shaped arm body 20ba and the arm body 20ba at a distance from each other, and holds each chuck 20a. It has a plurality of retaining plates 20bb for carrying out the operation, and bolts 20bc for attaching each of the plurality of retaining plates 20bb to the arm main body 20ba.

The arm main body 20ba can change its posture (as indicated by arrows R-R in the figure) from the initial posture indicated by the solid line in Fig. 10 to the snap posture indicated by the dashed dotted line. In accordance with the change in the posture of the arm main body 20ba, the glass plate Gx gripped by the plurality of chucks 20a rotates around the scribe line forming portion Gs. Thereby, the scribe line forming part Gs is curved so that the surface Ga side becomes convex along the longitudinal direction (Y-Y direction) of the glass ribbon G, and the bending stress is applied to the scribe line forming part Gs. is granted The change of the posture from the initial posture of the arm body 20ba to the snap posture is the circumference of the axis 29 extending in the width direction (X-X direction) along the scribe line forming portion Gs in contact with the fulcrum bar 19 . is performed by rotating the arm main body 20ba. In accordance with the rotation of the arm main body 20ba, the entire bending stress applying member 20 is configured to rotate. The initial posture of the arm main body 20ba is a posture inclined by the angle θ with respect to the vertical line 30 when viewed from the direction along the width direction of the glass ribbon G.

As shown in FIG. 1 , the arm body 20ba is fixed to a plate 35 that moves vertically along a guide 34 provided in the frame 33 by a ball screw 32 connected to a servo motor 31 . And the arm main body 20ba (the whole bending stress application member 20) moves up and down according to the up-and-down movement of the plate 35. As shown in FIG. Moreover, the frame 33 is enabled to move along the guide 38 extended in the width direction (X-X direction) of the glass ribbon G by the ball screw 37 connected with the servomotor 36. And it is possible to adjust the position along the width direction of the arm main body 20ba by moving the frame 33 according to the magnitude of the width dimension of the glass plate Gx (glass ribbon G).

In each of the plurality of holding plates 20bb, a long hole 20bba is formed in the thickness direction (Z-Z direction) of the glass plate Gx as shown in Fig. 10, and a bolt (20bba) inserted into the long hole 20bba 20bc) is fixed to the arm body 20ba, so that the retaining plate 20bb is attached to the arm body 20ba. Accordingly, as indicated by arrows W-W in the figure, each holding plate 20bb has the thickness of the glass plate Gx with respect to the arm body 20ba by the length of the long hole 20bba formed in the holding plate 20bb. It is possible to slide along the direction. And by adjusting the position of each holding plate 20bb with respect to the arm main body 20ba and the posture of each chuck 20a, each chuck 20a sets the glass plate Gx and the glass in the glass plate Gx. It is possible to hold the ribbon G while maintaining the curved shape along the longitudinal direction (Y-Y direction).

Here, in order to adjust the position of the holding plate 20bb with respect to the arm body 20ba, in order to suppress the width of the slide as small as possible when the holding plate 20bb is slid, the value of the angle θ is 0.1° It is preferable to set it in the range of -10 degrees.

In the lower end of the arm main body 20ba, as shown in Figs. 1 and 10, the surface Ga side in the lower end Gxa of the glass plate Gx at the time of snap cutting along the width direction (X-X direction) A lower end accommodating bar 39 as a supporting lower end accommodating member is attached. The lower accommodating bar 39 is attached to the arm body 20ba via a rod 40 capable of rotation in a state connected to the arm body 20ba and movement along the thickness direction (Z-Z direction) of the glass plate Gx. has been And, the lower accommodating bar 39 supports the lower end Gxa of the glass plate Gx in the width direction according to the rotation of the rod body 40 or movement along the thickness direction of the glass plate Gx of the rod body 40 in the width direction. It is possible to move between the support position (position shown by the solid line in FIG. 1 and FIG. 10) for carrying out, and the evacuation position which deviated from the conveyance path|route of glass ribbon G.

In detail, according to the rotation of the rod body 40, as indicated by arrow T-T in Fig. 1, the support position and the first retracted position spaced outward in the width direction (X-X direction) from the support position are moved. do. In addition, according to the movement along the thickness direction (Z-Z direction) of the glass plate Gx of the rod body 40, as indicated by arrows U-U in FIG. 10, the support position and the thickness direction of the glass plate Gx from the support position It moves between the separated 2nd evacuation positions (positions shown by the dashed-dotted line in FIG. 10). In addition, in order to match the magnitude|size of the width dimension of the glass plate Gx, the lower stage accommodating bar 39 can expand-contract in the elongate direction of the said lower stage accommodating bar 39 (the mechanism for extension is not shown in figure).

As shown in FIG. 10, the rocking|fluctuation regulating roller 21 is arrange|positioned on each of the front surface Ga side and the back surface Gb side of the glass ribbon G, When the rocking|fluctuation control roller 21 of both front and back cooperates, It has a structure which regulates the fluctuation|fluctuation of the thickness direction (Z-Z direction) in the glass ribbon G after snap cut|disconnection. In addition, any of the rocking|fluctuation control rollers 21 of the front and back both sides are free rollers.

The rocking|fluctuation control roller 21 (henceforth surface-side roller 21) on the side of the surface Ga side is located above the scribe line S in the glass ribbon G in the site|part Gd (henceforth upper part) It is arranged so as to face the surface Ga of (denoted by Gd). The surface-side roller 21 is connected to the air cylinder 41, and according to the increase or decrease of the internal pressure of the air cylinder 41, as indicated by the arrow O2-O2 in FIG. 10, the thickness direction of the glass ribbon G ( It is possible to move along the Z-Z direction). Thereby, the control position (position shown by the solid line in FIG. 10) for approaching the glass ribbon G and regulating a rocking|fluctuation, and the evacuation position for moving away from the glass ribbon G (2 in FIG. 10) It is possible to move between positions indicated by dashed-dotted lines).

Further, the front roller 21 is configured to be positioned at a regulated position at the time of snap cutting. Thereby, the upper part which is going to rotate from the back surface Gb side to the front surface Ga side with the scribe line forming part Gs as a center according to the rotation of the arm main body 20ba (it is going to bulge toward the surface Ga side). The surface side roller 21 supports Gd from the surface Ga side, and rotation of the upper part Gd is prevented. That is, the front side roller 21 functions as a snap assisting means (snap assisting roller 21) that assists snap cutting of the glass ribbon G. Here, in order to reliably function the surface-side roller 21 as the snap assist means, the separation along the longitudinal direction (Y-Y direction) of the glass ribbon G between the surface-side roller 21 and the fulcrum bar 19 is 10 It is preferable to set it as within the range of mm - 100 mm.

The rocking regulation roller 21 on the back side Gb side (hereinafter referred to as the back side roller 21) faces the back side Gb of the upper part Gd and is positioned at the same height as the front side roller 21 is placed in The back side roller 21 is connected to the air cylinder 41 like the front side roller 21 . And according to the increase/decrease of the internal pressure of the air cylinder 41, as shown by arrow O1-O1 in FIG. 10, it is possible to move along the thickness direction (Z-Z direction) of the glass ribbon G. Thereby, similarly to the surface side roller 21, it is possible to move between the regulating position (the position shown by the dashed-dotted line in FIG. 10) and the retraction position (the position shown by the solid line in FIG. 10). Here, although described in detail later, the timing of moving between the regulating position and the retracted position is different between the front side roller 21 and the back side roller 21 .

As shown in FIG. 11, when both the front side roller 21 and the back side roller 21 move to a regulating position, the ineffective part Gu which exists in the width direction (X-X direction) both ends of the glass ribbon G. is sandwiched in the thickness direction by both rollers. In addition, in Fig. 11, both rollers are shown that sandwich the ineffective portion Gu existing on one end side in the width direction in the thickness direction, but both rollers having the same configuration as both rollers on the one end side are arranged on the other end side. . In addition, when the front-side roller 21 and the back-side roller 21 move to the regulating positions, the regulating positions of both rollers are positioned so that a gap is formed between each of the rollers and the glass ribbon G. Here, the width BB of the gap formed between the front side roller 21 and the surface Ga moved to the regulating position, and between the back side roller 21 and the back side Gb moved to the regulating position The width CC of the gap formed in each of the gaps is preferably within the range of 0.5 mm to 5 mm, more preferably within the range of 1 mm to 3 mm.

The front roller 21 is connected to the plate 45 shown in FIG. 2 which moves vertically along the guide 44 installed in the frame 6 by a ball screw 43 connected to the servomotor 42 (connection part). is omitted). And the surface side roller 21 moves up and down according to the up-and-down movement of the plate 45. As shown in FIG. On the other hand, the back side roller 21 is connected with the plate 27 shown in FIG. 2 (connection part is not shown in figure). Then, the rear roller 21 moves up and down according to the vertical movement of the plate 27 .

As shown in FIG. 10, the gas injection nozzle 22 is arrange|positioned below the fulcrum bar 19 while arrange|positioning at the back surface Gb side of the glass ribbon G. Moreover, as shown in FIG. 12, the posture is adjusted so that the gas injection nozzle 22 may direct the path line through which the edge part Gm passes during conveyance of the glass ribbon G, and inject the gas 22a. In detail, the gas injection nozzle 22 has an inclined posture with respect to the thickness direction (Z-Z direction) of the glass ribbon G in a planar view, and the tip of the nozzle faces the outside in the width direction (X-X direction) inclined towards This gas injection nozzle 22 is connected to the plate 27 shown in Fig. 2, similarly to the rear roller 21 (connection portion not shown). Then, the gas injection nozzle 22 moves vertically according to the vertical movement of the plate 27 .

As shown in FIG. 10 , the suction nozzle 23 sandwiches the glass ribbon G in the thickness direction (Z-Z direction) to the surface Ga side opposite to the fulcrum bar 19 and the gas injection nozzle 22 . is placed in This suction nozzle 23 is formed elongately along the width direction (X-X direction) of the glass ribbon G, and the full length is longer than the scribe line S. In addition, the suction nozzle 23 is connected to a dust collector (not shown), and generates a negative pressure according to the operation of the dust collector, thereby sucking the glass powder Gk generated by snap cutting (details will be described later). In addition, the suction nozzle 23 is connected to an air cylinder (not shown), and as shown by arrows V-V in FIG. 10 according to the increase or decrease of the internal pressure of the air cylinder, moving along the thickness direction of the glass ribbon (G) thing is made possible Thereby, as for the suction nozzle 23, the approach to the glass ribbon G, and separation from the glass ribbon G are enabled. The air cylinder is fixed to the plate 45 shown in FIG. 2 . Then, the air cylinder and the suction nozzle 23 move up and down according to the vertical movement of the plate 45 .

As shown in FIG. 12, the auxiliary suction nozzle 46 for sucking the glass powder Gk is outside the width direction (X-X direction) of the path line through which the edge part Gm passes during conveyance of the glass ribbon G. is placed. Further, the auxiliary suction nozzle 46 is disposed at the same height as the suction nozzle 23 . This auxiliary suction nozzle 46 is also connected to the dust collector similarly to the suction nozzle 23 . Further, the auxiliary suction nozzle 46 is connected to the plate 27 shown in Fig. 2, similarly to the rear roller 21 and the gas injection nozzle 22 (a connecting portion is not shown). Then, the auxiliary suction nozzle 46 moves up and down in accordance with the vertical movement of the plate 27 .

With the configuration described above, when the snap mechanism 3 performs a snap operation, the fulcrum bar 19 , the bending stress imparting member 20 , the swing regulating roller 21 , the gas injection nozzle 22 , and the suction nozzle 23 . ) and the auxiliary suction nozzle 46 are the same speed as the conveyance speed of the glass ribbon G, and follow and fall to the glass ribbon G in the state synchronized with each other. And the glass plate Gx is cut from the glass ribbon G as follows during the following descent|fall to these glass ribbon G.

At first, as shown in Fig. 13, under the state that the surface side roller 21 has already moved from the retracted position to the regulating position, the fulcrum bar 19 and the suction nozzle 23 each approach the glass ribbon G, With respect to the point bar 19, it is in contact with the scribe line forming part Gs. In addition, the plurality of chucks 20a outside the drawing grip the edge portion Gm, and the lower end receiving bar 39 outside the drawing moves from the first retracted position or the second retracted position to the supporting position.

Next, the arm main body 20ba outside the figure rotates to start the change of the posture from the initial posture to the snap posture. At this time, as shown in FIG. 14, in order to prevent rotation of the upper part Gd, the surface side roller 21 supports the upper part Gd from the surface Ga side. Further, the gas injection nozzle 22 starts injection of the gas 22a, and the suction nozzle 23 and the auxiliary suction nozzle 46 start suction. That is, the gas injection nozzle 22, the suction nozzle 23, and the auxiliary suction nozzle 46 are comprised so that injection of the gas 22a and suction may be started before cutting of the glass plate Gx, respectively.

Next, when snap cutting of the glass ribbon G is completed and the glass plate Gx is cut out from the glass ribbon G, as shown in FIG. 15, while the fulcrum bar 19 is separated from the glass ribbon G, , the back side roller 21 approaches the glass ribbon G by replacement with the fulcrum bar 19, and moves from the retracted position to the regulating position. Thereby, it becomes arrangement|positioning which pinched|interposed the lower end part Ge of the glass ribbon G after the rocking|fluctuation control roller 21 of front and back both sides cut out the glass plate Gx. In addition, when the glass plate Gx is cut, the gas 22a injected by the gas injection nozzle 22 fills the gap formed between the lower end Ge of the glass ribbon G and the upper end Gxb of the glass plate Gx. It passes from the (Gb) side toward the surface (Ga) side. Then, a part of the glass powder Gk generated at the time of snap cutting is scattered by the pressure of the gas 22a and is guided to the suction nozzle 23 . In addition, another part of the glass powder Gk is guided to the auxiliary suction nozzle 46 by the pressure of the gas 22a.

Finally, when the suction of the glass powder Gk is completed, the injection of the gas 22a by the gas injection nozzle 22 stops, and the suction by the suction nozzle 23 stops. Moreover, the front-side roller 21 and the back-side roller 21 move from the regulating position to the retracted position, respectively, and the suction nozzle 23 separates from the glass ribbon G. Further, on the glass ribbon G of the fulcrum bar 19 , the bending stress imparting member 20 , the rocking regulating roller 21 , the gas injection nozzle 22 , the suction nozzle 23 , and the auxiliary suction nozzle 46 . The following descent is also stopped. In addition, the cut out glass plate Gx is passed from the snap mechanism 3 to the transfer mechanism 5 .

On the other hand, when the snap mechanism 3 performs a return operation, the fulcrum bar 19 , the bending stress applying member 20 , the swing regulating roller 21 , the gas injection nozzle 22 , the suction nozzle 23 , and the auxiliary suction The nozzles 46 move upward in a state in synchronization with each other. In addition, among the components of these snap mechanisms 3, about the component in which the approach and separation to the glass ribbon G are possible, it moves upward in the separated state. Further, during movement of the components of these snap mechanisms 3 , the lower accommodating bar 39 moves from the supporting position to the first retracted position or the second retracted position. The fulcrum bar 19, the bending stress imparting member 20, the swing regulating roller 21, the gas jet nozzle 22, the suction nozzle 23, and the auxiliary suction nozzle 46 are snap cut (snap performed next time). When returning to the height position where cutting|disconnection is started, these upward movement is stopped.

Here, it is preferable to select which one of the 1st retracted position and the 2nd retracted position will move the lower end receiving bar 39 as follows. That is, in the initial state before the glass ribbon G continuously shape|molded by the down-draw method is carried in to the manufacturing apparatus 1 of a glass plate, it is preferable to move the lower end accommodation bar 39 to a 1st retracted position. . And when the snap mechanism 3 starts the snap operation of the 1st time (first time), it moves the lower end accommodation bar 39 from a 1st retracted position to a support position. Further, after the snap mechanism 3 completes the first snap operation, it is preferable to move the lower end accommodating bar 39 to the second retracted position until the second snap operation is started. Further, after the snap mechanism 3 completes the second and subsequent snap operations, it is preferable to move the lower end accommodating bar 39 to the second retracted position until the next snap operation is started.

Hereinafter, a modified example of the snap mechanism 3 will be described.

In this embodiment, although the some chuck|zipper 20a is used as a some support member (support body) which supports the glass plate Gx, it is not limited to this. You may use the adsorption|suction pad etc. which can adsorb|suck this glass plate Gx as a support member (support body) by generating a negative pressure in the glass plate Gx. In addition, in this embodiment, although the lower stage accommodation bar 39 as a lower stage accommodation member supports the surface Ga side in the lower end part Gxa of the glass plate Gx along the width direction (X-X direction), this is not limited to As the lower end receiving member, a suction pad may be used instead of the lower receiving bar 39 . In this case, it is not necessarily necessary to support the front surface Ga side along the width direction, and you may support the back surface Gb side along the width direction.

In addition, in this embodiment, when the snap mechanism 3 performs a return operation|movement, the fulcrum bar 19, the bending stress application member 20, the rocking|fluctuation control roller 21, the gas injection nozzle 22, the suction nozzle ( 23) and the auxiliary suction nozzle 46 move upward in a state in synchronization with each other, but the present invention is not limited thereto. Mechanisms for vertical movement of these may be separately provided, and these may move upward and return, respectively.

In addition, in this embodiment, when the front side roller 21 and the back side roller 21 move to the control position, the control position is positioned so that a gap is formed between each of both rollers and the glass ribbon, It is not limited to this. Even if the regulating position may be positioned so that each of both rollers and the glass ribbon G contact when both rollers move to the regulating position, the regulating position may be positioned so that only one of the rollers contacts the glass ribbon G good night.

In addition, in this embodiment, when the injection of the gas 22a by the gas injection nozzle 22 and the suction by the suction nozzle 23 stop, the front side roller 21 and the back side roller 21 are Although it is moving from a regulating position to a evacuation position, it is not limited to this. In accordance with the duration of the shaking of the glass ribbon G and the magnitude of the amplitude of the shaking, both rollers may be moved to the retracted position before the gas injection nozzle 22 and the suction nozzle 23 are stopped, and after stopping, both rollers may be moved to the retracted position.

In addition, in the present embodiment, both rollers move upward in accordance with the return operation of the snap mechanism 3 in a state in which both the front side roller 21 and the back side roller 21 have moved to the retracted position, It is not limited to this. While positioning the regulating position so that a gap is formed between each of the rollers moved to the regulating position and the glass ribbon, both rollers may be moved upwardly in the regulating position. Moreover, in order to shorten the time required for cutting per one piece of glass plate Gx, while positioning a regulation position so that the surface side roller 21 and glass ribbon G which moved to a regulation position may contact, it regulates You may make it move upwardly the surface side roller 21 in a position. That is, you may make it the state in which the surface side roller 21 and the glass ribbon G always contact regardless of during the snap operation|movement of the snap mechanism 3, and a return operation|movement.

In addition, in this embodiment, although rollers (the front side roller 21 and the back side roller 21) are used as a rocking|fluctuation control means (snap auxiliary means), it is not limited to this. For example, you may employ|adopt a long rod-shaped member in the width direction of the glass ribbon G as a rocking|fluctuation regulating means (snap auxiliary|assistant means). In this case, it is preferable to position a regulating position so that a clearance gap may be formed between the glass ribbon G when a rod-shaped member moves to a regulating position. In addition, in the rod-shaped member, the portion facing the glass ribbon G may be formed in a flat surface, and is formed in a convex curved surface in order to prevent damage or the like due to contact with the glass ribbon G. there may be

In addition, in this embodiment, although the gas injection nozzle 22 is comprised so that the gas 22a may be injected toward the path line through which the edge part Gm passes during conveyance of the glass ribbon G, it is limited to this it is not For example, using the gas injection nozzle 22 provided with the injection port which is elongate in the width direction (X-X direction) of the glass ribbon G, the gas 22a is injected toward the path line of the glass ribbon G full width. It may be configured as

Hereinafter, the interlocking operation of the scribing mechanism 2 and the snap mechanism 3 will be described.

The initial state before the glass ribbon G continuously shape|molded by the down-draw method is carried in to the manufacturing apparatus 1 of a glass plate WHEREIN: The scribing mechanism 2 waits at the height position which starts formation of the scribe line S and the snap mechanism 3 stands by at the height position where snap cutting is started. When the glass ribbon G is carried in to the manufacturing apparatus 1 of a glass plate, the scribe mechanism 2 will start a formation operation|movement (1st time), and the scribe line S will be formed in the glass ribbon G. The scribing mechanism 2 starts the feedback operation (first time) continuously after completion of the forming operation (first time). That is, before the snap mechanism 3 completes the snap operation (first time), the scribe mechanism 2 starts the feedback operation (first time). And when the scribe line forming part Gs reaches to the height position where the snap mechanism 3 waited (a height position where snap cutting is started), the snap mechanism 3 starts a snap operation (1st time). The snap mechanism 3 starts the returning operation (first time) continuously after completion of the snap operation (first time). In addition, after the scribe mechanism 2 returns to the height position at which the formation of the scribe line S is started, the snap mechanism 3 is again performing a snap operation (first time) or a return operation (first time). The forming operation (second time) is started. And before the scribe mechanism 2 completes the forming operation|movement (2nd time), the snap mechanism 3 completes the return operation|movement (1st time), and returns to the height position which starts snap cutting. And when the scribe line forming part Gs reaches to the height position where the snap mechanism 3 waited, the snap mechanism 3 starts a snap operation (2nd time). In this way, the formation of the scribe line S by the scribe mechanism 2 and the snap cut of the glass ribbon G by the snap mechanism 3 are performed repeatedly.

Hereinafter, the detail of the conveyance mechanism 5 is demonstrated.

The transfer mechanism 5 has the receiving arm 5a for receiving and transferring the cut out glass plate Gx from the snap mechanism 3 . A chuck 5aa for gripping and releasing the upper end Gxb of the glass plate Gx is provided at the tip of the receiving arm 5a. And under the state in which the chuck|zipper 5aa gripped the glass plate Gx, the glass plate Gx can be conveyed by the receiving arm 5a moving from the position shown by the solid line in FIG. 2 to the position shown by the dashed-dotted line. it is to be done

Hereinafter, the manufacturing apparatus of the glass plate by 2nd Embodiment of this invention is demonstrated. In the description of the second embodiment, elements already described in the first embodiment are duplicated by attaching the same reference numerals to the description for the second embodiment or the drawings referred to in the description of the second embodiment. A description is omitted.

<Second embodiment>

The main point from which the manufacturing apparatus 1 of the glass plate which concerns on 2nd Embodiment of this invention differs from the manufacturing apparatus 1 of the glass plate which concerns on said 1st Embodiment is the rotation of the arm main body 20ba during rotation. The point is that it is possible to change the position of the axis line 29 used as a center, and the point which the arm main body 20ba in rotation is a point which it is possible to rotate further. In addition, you may make it arrange|position the rod body 40 and the lower stage accommodation bar 39 similarly to 1st Embodiment also in this 2nd Embodiment.

As shown in FIG. 16, the manufacturing apparatus 1 of a glass plate rotates the arm main body 20ba about the central axis line 47 extended in the width direction (X-X direction) of the glass ribbon G as a center (rotation mechanism ( 48) and a movement mechanism 49 for moving the arm main body 20ba connected to the rotation mechanism 48 by moving the rotation mechanism 48 in a supported state. In addition, the moving mechanism 49 includes a first moving mechanism 49a for moving the arm body 20ba in the thickness direction (Z-Z direction) of the glass ribbon G, and a first moving mechanism 49a for moving the arm body 20ba in the vertical direction. and a second moving mechanism 49b for In addition, the moving mechanism 49 is provided in the bottom wall 50 as a stationary system.

The rotating mechanism 48 is a housing that accommodates a shaft portion 48a that rotates about a central axis 47 as an axis in a state connected to the arm body 20ba, and a first servomotor (not shown) connected to the shaft portion 48a. A guide 51 for moving the 48b and the housing 48b is provided, and a support 48c is provided for supporting the housing 48b from below via the guide 51 .

The shaft portion 48a is capable of controlling the forward and reverse rotational directions and rotational speeds by the first servomotor. Moreover, the shaft part 48a is connected with the central part in the elongate direction of the arm main body 20ba, and it is possible for the arm body 20ba to rotate in synchronization with the rotation of the shaft part 48a. Then, the entire bending stress applying member 20 is configured to rotate around the central axis 47 in accordance with the rotation of the arm main body 20ba. It is possible to move the housing 48b in the width direction (X-X direction) of the glass ribbon G along the guide 51. Thereby, by moving the housing 48b according to the magnitude of the width dimension of the glass plate Gx (the glass ribbon G), the width direction of the arm body 20ba connected to the housing 48b via the shaft portion 48a. It is possible to adjust the following position.

With the configuration described above, when the snap mechanism 3 performs a snap operation, the shaft portion 48a whose rotational direction and rotational speed are controlled by the first servomotor rotates, and in synchronization with this, the arm body 20ba Rotates around the central axis (47). Thereby, the attitude|position of the arm main body 20ba during a snap operation is controlled, and the attitude|position of the bending stress application member 20 whole is controlled. Moreover, when the arm main body 20ba rotates, it is possible to change the position of the axis line 29 which becomes the center of the rotation.

The second moving mechanism 49b includes a movable body 49ba that moves vertically along a guide 54 installed on the frame 53 by a ball screw 52 connected to a second servomotor (not shown), and the frame 53 . It has a support table 49bb for supporting.

The movable body 49ba is connected with the support 48c with which the rotation mechanism 48 was equipped, and it becomes possible for the 2nd movement mechanism 49b to support the rotation mechanism 48 via the movable body 49ba. have. In addition, the support 48c connected to the movable body 49ba moves vertically according to the vertical movement of the movable body 49ba, so that the rotation mechanism 48 and the arm body 20ba connected to the rotation mechanism 48 move vertically. Thereby, in synchronization with the vertical movement of the movable body 49ba, the bending stress applying member 20 as a whole is configured to move in the vertical direction.

In order to make the bending stress application member 20 follow and fall on the glass ribbon G at the time of snap cutting, this movable body 49ba tracks and can move downward following the glass ribbon G. The downward movement speed of the movable body 49ba is controlled by the second servomotor. Thereby, it is possible for the movable body 49ba to move at the same speed as the conveyance speed of the glass ribbon G (henceforth a basic speed is expressed). It is also possible to move downward at a speed accelerated with respect to the basic speed (hereinafter referred to as an acceleration speed) or a speed decelerated with respect to the basic speed (hereinafter referred to as a deceleration speed).

With the configuration described above, when the snap mechanism 3 performs a snap operation, the movable body 49ba whose movement speed is controlled by the second servomotor moves downward, and the arm body 20ba moves in synchronization with this. move downwards At this time, as the moving speed of the movable body 49ba is switched from the basic speed to the acceleration speed or deceleration speed, the moving speed in the downward direction of the arm body 20ba is changed, and the fulcrum bar 19 and the arm in the vertical direction are changed. The relative positional relationship of the main body 20ba is changed. According to the change in this positional relationship, it becomes possible to move the entire bending stress applying member 20 in the vertical direction relative to the fulcrum bar 19 . In addition, by changing the moving speed of the arm body 20ba, it is possible to change the position of the axis line 29 in the vertical direction relative to the fulcrum bar 19 .

The first moving mechanism 49a moves in the thickness direction (Z-Z direction) of the glass ribbon G along the guide 57 installed in the frame 56 by the ball screw 55 connected to the third servomotor (not shown). It has a movable body 49aa which moves.

The movable body 49aa is connected with the support table 49bb with which the 2nd moving mechanism 49b was equipped, and the 1st moving mechanism 49a supports the 2nd moving mechanism 49b via the movable body 49aa. it is possible to do Further, in accordance with the movement in the thickness direction (Z-Z direction) of the movable body 49aa, the support table 49bb connected to the movable body 49aa moves in the thickness direction, whereby the second movement mechanism 49b and the second movement mechanism The rotating mechanism 48 supported by 49b, and the arm body 20ba connected to the rotating mechanism 48 move in the thickness direction. Accordingly, in synchronization with the movement in the thickness direction of the movable body 49aa, the entire bending stress applying member 20 is configured to move in the thickness direction. The moving direction and moving speed along the thickness direction of the movable body 49aa are controlled by the third servomotor.

With the configuration described above, when the snap mechanism 3 performs the snap operation, the movable body 49aa whose movement direction and movement speed are controlled by the third servomotor moves, and in synchronization with this, the arm body 20ba ) moves in the thickness direction (Z-Z direction). In this way, the position in the thickness direction of the arm main body 20ba during the snap operation is controlled, and the position in the thickness direction of the entire bending stress applying member 20 is controlled. Moreover, it is possible to change the position of the axis line 29 in the thickness direction by moving the arm main body 20ba in the thickness direction.

The rotation mechanism 48, the first movement mechanism 49a, and the second movement mechanism 49b are capable of simultaneously operating these three elements, and selectively only one mechanism or two mechanisms among the three elements. It is also possible to make it work.

In this embodiment, the rotation mechanism 48, the 1st movement mechanism 49a, and the 3rd movement mechanism 49b are operating simultaneously. Thereby, as shown in FIG. 17, when the arm main body 20ba changes an attitude|position from the initial attitude|position shown by the solid line to the snap attitude|position shown by the dashed-dotted line, the fulcrum bar 19 which is following and falling to the glass ribbon G. The position of the axis line 29 is moved from the front surface Ga side to the rear surface Gb side along the thickness direction (Z-Z direction) at the same height position as . When the posture of the arm main body 20ba is changed, each of the rotation mechanism 48, the first movement mechanism 49a, and the second movement mechanism 49b performs the following operations.

The rotating mechanism 48 rotates the arm body 20ba in a clockwise direction about the central axis 47, thereby gradually increasing the inclination angle of the arm body 20ba with respect to the vertical line 30 from the angle θ (θ). <θ1 <θ2).

Here, for example, when the arm body 20ba only rotates, (1) the position of the axis 29 moves from the rear surface Gb side to the front surface Ga side in the thickness direction (Z-Z direction) according to the rotation. throw it away Further, (2) the position of the axis 29 is moved downward relative to the fulcrum bar 19 according to the rotation. Therefore, by denying the movement of these (1) and (2), the operation for moving the position of the axis line 29 from the front surface Ga side to the rear surface Gb side at the same height position as the fulcrum bar 19 is eliminated. 1 movement mechanism 49a and the 2nd movement mechanism 49b are performing.

The 1st moving mechanism 49a is moving the arm main body 20ba from the front surface Ga side to the back surface Gb side along the thickness direction (Z-Z direction) of the glass ribbon G. And the moving speed of the arm main body 20ba at this time is made faster than the speed at which the axis line 29 moves from the back surface Gb side to the front surface Ga side in said (1). Thereby, the movement of said (1) is denied, and the position of the axis line 29 moves from the front surface Ga side to the back surface Gb side in the thickness direction.

The second moving mechanism 49b moves the arm body 20ba downward at the same speed as the deceleration speed by moving the movable body 49ba at the deceleration speed. That is, with respect to the 2nd moving mechanism 49b, the operation|movement for moving the position of the axis line 29 relatively upward with respect to the fulcrum bar 19 is performed. By this operation, the movement of the above (2) is negated, and the position of the axis line 29 is maintained at the same height position as the fulcrum bar 19 in the vertical direction.

When the rotation mechanism 48, the 1st movement mechanism 49a, and the 2nd movement mechanism 49b perform the said operation|movement, as shown by the solid line in FIG. 17, the length of the glass ribbon G at the start of snap cutting. Even if the scribe line forming portion Gs has risen from the fulcrum bar 19 due to the bending along the direction (Y-Y direction), as shown by the dashed-dotted line in the same figure during snap cutting, the scribe line forming portion Gs The injured condition of

When snap cutting is completed and the glass plate Gx is cut out from the glass ribbon G, the arm main body 20ba will rotate counterclockwise centering on the central axis line 47. Thereby, the glass plate Gx supported by the bending stress application member 20 rotates counterclockwise centering|focusing on the central axis line 47, and it becomes a vertical position. And the glass plate Gx of the state made into the vertical position is passed from the snap mechanism 3 to the conveyance mechanism 5. Further, counterclockwise rotation of the arm body 20ba is executed after the rear roller 21 moves from the retracted position to the regulating position.

Hereinafter, a modified example of this embodiment is demonstrated.

In this embodiment, although the shaft part 48a with which the rotation mechanism 48 was equipped is connected with the central part in the elongate direction of the arm main body 20ba, it is not limited to this. The shaft portion 48a is connected to a position deviated from the central portion in the long direction of the arm main body 20ba, and the position of the central axis line 47 serving as the center of rotation of the arm main body 20ba is a position different from that of this embodiment. may be changed to

Here, the manufacturing apparatus of the glass plate by this invention is not limited to the structure demonstrated by the said embodiment. Although the manufacturing apparatus of the glass plate which concerns on the said embodiment is comprised so that the glass ribbon which has flexibility may be snap-cut, it is good also as a structure which snap-cuts the glass ribbon without flexibility. In this case, the manufacturing apparatus of the glass plate which concerns on the said embodiment WHEREIN: In order to respond|correspond to snap cutting of the glass ribbon which has flexibility, the mechanism and member provided may be removed or you may add a change. For example, a strain imparting mechanism or a bottom receiving bar is unnecessary when snap-cutting an inflexible glass ribbon. In addition, since the cutter wheel or the wheel support roller does not need to run by imitation of the curvature of the glass ribbon, it is only necessary to make it run along the width direction of the glass ribbon. Moreover, you may make it support the cutter wheel (supported via a glass ribbon) during running by the surface plate in which the flat surface which can contact the full width of a glass ribbon was formed instead of a wheel support roller.

Moreover, in the manufacturing apparatus of the glass plate which concerns on the said embodiment, although the gas injection nozzle which injects the gas for blowing off glass powder, and the suction nozzle for suctioning glass powder are arrange|positioned, it is not necessary to arrange|position these. In this case, since it is prevented that a glass ribbon rock|fluctuates in the thickness direction by the negative pressure which the pressure of the gas injected by a gas injection nozzle, or the negative pressure which a suction nozzle generate|occur|produces, it may become advantageous at the point of suppressing a fluctuation|fluctuation. In addition, among the rocking control rollers on both front and back sides, the back side rocking|fluctuation control roller may not necessarily be arrange|positioned, and only the front side rocking|fluctuation control roller may be arrange|positioned, and the said roller may function only as a snap assist roller.

DESCRIPTION OF SYMBOLS 1: Glass plate manufacturing apparatus 2: Scribing mechanism
2a: cutter wheel 3: snap mechanism
20: bending stress applying member 47: central axis
G: glass ribbon Ga: surface
Gb: back side Gs: scribe line forming part
Gx: glass plate S: scribe line
21: rocking regulation roller

Claims (10)

The glass ribbon by forming a scribe line along the width direction to one side with respect to a glass ribbon continuously formed by the down-draw method and conveyed downward, and applying a bending stress to a scribe line forming portion in which the scribe line is formed. In addition to being configured to repeatedly execute the snap cut of
A scribing mechanism that performs a forming operation of forming the scribe line while following and descending on the glass ribbon and a feedback operation of returning upward; An apparatus for manufacturing a glass plate having a snap mechanism for performing a snap operation for cutting a cut-out portion in
The said scribing mechanism supports the forming member which forms a scribe line by moving along the width direction on the said one side of the said glass ribbon, and the said forming member moving on the said one side from the other side side through the said glass ribbon. It has a forming auxiliary member,
The snap mechanism is brought into contact with the scribe line forming part from the other side and serves as a point of snap cut and is a member different from the formation auxiliary member, and the one side side with the cut-out part supported. has a bending stress applying member that curves the scribe line forming portion so that the one side is convex by rotating it toward the other side of the
The said scribing mechanism and the said snap mechanism are mutually independent and are comprised so that an up-down operation is possible, The manufacturing apparatus of the glass plate characterized by the above-mentioned. The method of claim 1,
and before the snap mechanism completes the snap operation, the scribing mechanism is configured to initiate the return operation. 3. The method according to claim 1 or 2,
and before the scribing mechanism completes the forming operation, the snap mechanism is configured to complete the returning operation. 3. The method according to claim 1 or 2,
After the said scribing mechanism completes the said forming operation|movement, the said scribing mechanism is comprised so that the said feedback operation|movement may be started continuously, The manufacturing apparatus of the glass plate characterized by the above-mentioned. 3. The method according to claim 1 or 2,
and, after the snap mechanism completes the snap operation, the snap mechanism is configured to continuously start the return operation. 3. The method according to claim 1 or 2,
The said forming member is a cutter wheel which forms the said scribe line by traveling along the width direction on the said one side of the said glass ribbon, The manufacturing apparatus of the glass plate characterized by the above-mentioned. 3. The method according to claim 1 or 2,
The said bending stress application member is comprised so that rotation is possible centering on the central axis extending in the width direction, The manufacturing apparatus of the glass plate characterized by the above-mentioned. 3. The method according to claim 1 or 2,
The said snap mechanism is equipped with each of the said one side side and the said other side of the said glass ribbon with the rocking|fluctuation regulating means which regulates the rocking|fluctuation of the thickness direction of the said glass ribbon after snap cutting, The manufacturing apparatus of the glass plate characterized by the above-mentioned. . 9. The method of claim 8,
The said shaking control means is a roller, The manufacturing apparatus of the glass plate characterized by the above-mentioned. The glass ribbon by forming a scribe line along the width direction to one side with respect to a glass ribbon continuously formed by the down-draw method and conveyed downward, and applying a bending stress to a scribe line forming portion in which the scribe line is formed. When executing the snap cut of
A scribing mechanism that performs a forming operation of forming the scribe line while following and descending on the glass ribbon and a feedback operation of returning upward; A method for manufacturing a glass plate using a snap mechanism for performing a snap operation for cutting a cut-out portion in
The said scribing mechanism supports the forming member which forms a scribe line by moving along the width direction on the said one side of the said glass ribbon, and the said forming member moving on the said one side from the other side side through the said glass ribbon. It has a forming auxiliary member,
The snap mechanism is brought into contact with the scribe line forming part from the other side and serves as a point of snap cut and is a member different from the formation auxiliary member, and the one side side with the cut-out part supported. has a bending stress applying member that curves the scribe line forming portion so that the one side is convex by rotating it toward the other side of the
The method of manufacturing a glass plate, characterized in that the scribing mechanism and the snap mechanism are operated vertically independently of each other.

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