KR101865601B1 - Device for splitting sheet glass - Google Patents

Abstract

(10, 11a, 11b) for supporting the plate glass (G) on both sides of the scribe line, and a notch member (30 And a cutting member 40 having a cutting edge which advances to the opposite end faces of the cut glass plates G1 and G2 and cuts the protective sheet 50 is provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate glass cutting apparatus, and more particularly, to a technique for cutting a protective sheet that protects the back side of a plate glass when cutting the plate glass by bending.

Plasma glass used for a flat panel display such as a plasma display or a liquid crystal display or a window glass of a building is produced by cutting a small-sized plate glass from a large-sized plate glass in the manufacturing process or by trimming an edge portion along a side of the plate glass There is a case where the back glass is cut off.

As a method of cutting the plate glass, a scribe line is inserted into a plate glass as in the techniques disclosed in the following patent documents 1 to 3, and a plate glass is pressed using a cutter to impart a bending moment to the peripheral portion of the scribe line, The method of declining by clause is generally widely used.

Japanese Patent Application Laid-Open No. 2004-051394 Japanese Patent Application Laid-Open No. 61-168547 Japanese Patent Application Laid-Open No. 2006-315901

However, when the above-mentioned cutting method is carried out, the cutting operation is performed in a state that the plate glass is disposed on the supporting member. However, during the operation, particularly during the operation under the dry condition, The scratches and the like are liable to be generated on the back surface of the glass plate. Therefore, a method of interposing a protective sheet for protecting the plate glass from the back side is interposed between the plate glass and the support member for the purpose of preventing occurrence of scratches and the like.

When such a method is employed, it may be advantageous to transfer the plate glass to the next step after arranging each plate glass on the protective sheet when the plate glass is transferred from the step of cutting to the next step. In such a case, the process of cutting the plate glass and the process of cutting the protective sheet are performed in different work areas, respectively. This leads to optical conversation of the work space and deterioration of working efficiency there was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has an object to provide a cutting apparatus and a method of manufacturing a cutting apparatus which are capable of narrowing a space for a work space by devising a cutting step for cutting the plate glass by cutting and a cutting step for cutting the protective sheet for protecting the back side of the plate glass, And further, to improve the working efficiency.

According to a first aspect of the present invention, there is provided a plate glass cutting apparatus which is disposed on a protective sheet and presses a plate glass on the surface of which a scribe line has been formed from the back surface, wherein the plate glass is supported on both sides of the scribe line A cutting means for pressing the plate glass from the back surface and separating the plate glass along the scribe line from each other between the supporting means and the supporting means; And a member is provided.

According to this configuration, the plate glass supported by the supporting means in both side regions of the scribe line and having the scribe lines on the surface thereof is moved along the scribe line by the cut-away member pressing the support glass from the back side of the support means through the protective sheet. I will do it. When the cut-away member is held at a position immediately after the cut-off without retracting, the opposite end portions of the cut-out glass plates are supported and lifted by the cut-away member. At this point, a gap is generated between the opposite end faces of the plate glass in a state where the protective sheet covers the back side of each plate glass. By advancing the cutting edge of the cutting member into this gap, the protective sheet existing on the back side of the plate glass is cut off, and the cutting edge of the plate glass and cutting of the protective sheet are performed in conjunction with each other. As a result, it is no longer necessary to separately perform the step of cutting the plate glass and the step of cutting the protective sheet in different working areas, thereby making it possible to reduce the working space, to make the apparatus compact, to shorten the working time, Is improved.

In the above configuration, it is preferable that the cutting member is mounted on the cut-away member, and that the cutting edge of the cutting member is allowed to move out of the distal end of the cut-away member.

When cutting the plate glass, the cutting edge of the cutting member is retracted from the distal end of the cut-away member. When the protective sheet is cut, the cutting edge of the cutting member is advanced from the front end of the cut- It is good. In this way, particularly, the cutting process of the protective sheet is simplified, thereby further improving the working efficiency, and the space for arranging the cut-away member and the cutting member is narrowed, thereby further compacting the apparatus.

In the above configuration, it is preferable that the leading end portion of the cut-away member is constituted by a pair of divided bodies having a gap between mutually opposing end faces, and the cutting edge of the cutting member is configured to move out through the gap of the pair of divided bodies .

In this way, the mounting condition of the cut-away member and the cutting member is made appropriate, and it becomes compact efficiently and at the same time, the cut-off operation of the cutting edge of the cutting member can be performed smoothly. Further, the pair of divided bodies constituting the distal end portion of the cut-away member are configured such that opposed cross-sections of the pair of divided bodies can be joined and separated from each other, so that the pair of divided bodies are pressed against the plate glass at the time of joining the both opposite cross- And the cutting blade of the cutting member may be advanced through the gap.

In the above configuration, the supporting means is one or a plurality of conveying means provided on both side regions of the scribe line of the plate glass and performing a conveying action, and the supporting means is a conveying means which is provided on one side of the scribe line of the plate glass It is preferable that at least one conveying means and at least one conveying means present in the region on the other side are approaching and transferring. Here, the term " approach " and " transfer " refer not only to the case where both corresponding transfer means move in both directions and both transfer and transfer, but only one transfer means does not move and only the other transfer means moves, But also includes a case where one conveying means relatively moves parallel to the other conveying means as well as a case where the gap between the two conveying means relatively moves so as to gradually expand as the gap moves from the upstream side to the downstream side (Hereinafter the same).

In this way, when the plate glass is carried into the conveying means of the plate glass separating apparatus and is conveyed to the disposal position, the separating of the plate glass and the cutting of the protective sheet are performed. The plate glass and the cut protective sheets are separated from each other and conveyed downstream by at least one conveying means present in one area and at least one conveying device present in the other area. In this case, when the conveying means is separated from each other between the opposing end faces of the plate glass (between the end faces), the plate glass is separated and conveyed to the downstream side without bringing the end faces of the plate glass into contact with each other . On the other hand, in the case where the transferred transfer means once approaches and returns to the original position, the succeeding new glass plate is taken into the transfer means of the plate glass dividing apparatus, and then the same process as that described above is carried out, And is conveyed from the lower end position to the downstream side. By repeating the above-described operations, it is possible to carry out the carrying of the plate glass to the carrying means, that is, the carrying position, and carrying out the carrying out of the plate glass from the carrying position, As a result, it is possible to prevent the deterioration of the quality of the plate glass caused by the contact of the cut end faces of the cut out plate glass with each other and to improve the working efficiency in the cutoff process. Further, when the plate glass is removed from the lower end position, it is preferable that the conveying operation of the plate glass by the conveying means is stopped.

In the above arrangement, a plurality of conveying units are provided in parallel in at least one of the one area and the other area, and at least one of the conveying units is movable for approaching and leaving, It is preferable that at least one of the transfer means and the other transfer means of the transfer means of the transfer means can be adsorbed to and released from the plate glass.

In this way, the plate glass disposed on the protective sheet carried in the carrying means of the plate glass cutting apparatus is preferably stopped at the cut end position, and the protective sheet is cut. The plate glass after the cutting edge and the cutting of the protective sheet are subjected to the following treatment. That is, the conveying means other than the movable conveying means, that is, the conveying means which can not be moved (hereinafter referred to as the fixed-side conveying means) on at least one side of both sides of the scribe line is moved Possible conveying means (hereinafter referred to as movable-side conveying means) moves (reciprocates) in the direction of separating each plate glass after being separated while conveying the plate glass by suction. Even in this case, if the movable-side conveying means is conveyed immediately after the cut-off of the plate glass, the plate glass after the cut-off is separated without causing the cut-off surfaces to contact each other. After the separated glass plates are separated from each other, the fixed-side transporting means sucks and transports the glass plate after the removal, and the movable-side transporting means returns to the original position in a state of releasing the adsorption to the glass plate after the removal Move (approach). Therefore, while the movable-side conveying means is returning to the original position, the fixed-side conveying means can carry the succeeding new plate glass. As a result, it is possible to continuously carry out separation of the plate glass after the discharge and discharge to the downstream side from the discharge end position and subsequent carry-in of the new plate glass to the discharge end position, thereby achieving a new improvement in the working efficiency in the discharge step .

In the above configuration, it is preferable that the gas is jetted to the plate glass at the time of releasing the adsorption to the plate glass.

In this way, the gas is ejected from the conveying means in the state in which the adsorption to the plate glass is released toward the plate glass, so that the plate glass is in a floating state on the conveying means ejecting the gas and the conveying means and the plate glass are likely to slide The occurrence of scratches and the like on the bottom surface of the plate glass can be more effectively suppressed.

In the above configuration, it is preferable that the movable transfer means is provided at an outermost position in the arrangement direction of the plurality of transfer means.

In this way, since the movable range (moving distance) of the movable-side conveying means can be increased as compared with the case where the movable-side conveying means is provided between the plurality of fixed-side conveying means, the separated plate glass is separated over a longer distance Lt; / RTI > In addition, when the plate glass is separated from each other, there is no stationary-side transporting means that can not move in front of the moving direction of the movable-side transporting means, thereby making it difficult for the protective sheet interposed between the transporting means and the plate glass to bend. This makes it difficult to separate the plate glass and the protective sheet from each other by sticking to the end face or the end face of the plate glass having the fin protective sheet cut off, and it is possible to prevent problems such as difficulty in controlling the conveying and stop positions of the plate glass .

In the above configuration, the plurality of conveying means including the movable conveying means may be provided in the one region, and all the conveying means provided in the other region may be made incapable of movement.

In this way, the device structure of the region on the side where the movable-side transfer means is not provided can be simplified, and the manufacturing cost of the apparatus can be reduced.

(Effects of the Invention)

As described above, according to the present invention, since the cutting step by cutting the plate glass and the cutting step of the protective sheet for protecting the plate glass from the back side are performed in conjunction with each other in the same working area, the working space is reduced, The work time is shortened, and the working efficiency is improved.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view (plan view) showing a plate glass cutting apparatus according to an embodiment of the present invention; FIG.
2 is a drawing (side view) showing a plate glass cutting apparatus according to an embodiment of the present invention.
Fig. 3 is an enlarged longitudinal end elevation view showing a cut-away member and a cutting member which are components of a plate glass cutting apparatus according to an embodiment of the present invention, and is a sectional view taken along the line EE of Fig.
4A is an enlarged longitudinal elevation view showing a cutout member and a cutting member which are components of a plate glass cutting apparatus according to an embodiment of the present invention.
4B is an enlarged longitudinal elevation view showing a cut-away member and a cutting member which are components of a plate glass cutting apparatus according to an embodiment of the present invention.
5 is an enlarged longitudinal elevation view showing a cut-away member and a cutting member which are components of a plate glass cutting apparatus according to an embodiment of the present invention.
6A is a view showing a cutout member and a cutting member which are components of a plate glass cutting apparatus according to an embodiment of the present invention.
6B is a view showing a cut-away member and a cutting member which are components of a plate glass cutting apparatus according to an embodiment of the present invention.
Fig. 7 is a view showing the action of the plate glass cutting apparatus shown in Figs. 1 and 2. Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, the configuration of a plate glass cutting apparatus according to an embodiment of the present invention will be described with reference to Figs. 1 to 6. Fig. In this embodiment, a bending moment is imparted to the periphery of a scribe line by a folding member, and the plate glass is cut along a scribe line.

In this embodiment, a conveyor is used as a supporting means for supporting the plate glass (the details will be described later). As shown in Figs. 1 and 2, on the upstream side of the plate glass clearing device 1, a carry-in side conveyor S for conveying the plate glass G to the plate glass clearing device 1 and a plate glass clearing device 1) is provided with a take-out side conveyor R for taking out both the split glass plates G1 and G2 separated from each other. The conveyor, the carry-in side conveyor S and the carry-out side conveyor R, which are support means of the plate glass cutting apparatus 1, are driven by a conveyor provided on each of them in accordance with the rotation of the pulley 20 by a power source such as a motor So that the belt V is driven.

1, the conveying means of the plate glass cutting apparatus 1 includes a movable side conveyor 10 for conveying the plate glass G and the separated plate glass G1 and G2 in the C direction, The conveyor 11a (fixed side conveyor in the area including both sides of the scribe line and the movable side conveyor 10), the fixed side conveyor 11b (including both side areas of the scribe line, not including the movable side conveyor 10) Side fixed-side conveyor) are arranged in parallel with each other. The movable-side conveyor 10 is capable of moving between the reference position P1 and the retreat position P2 in the widthwise direction orthogonal to the conveying direction C of the plate glass by means of a ball screw mechanism or the like . On the other hand, both of the fixed-side conveyors 11a and 11b are fixed to the reference position. The movable-side conveyor 10 and the both-fixed-side conveyors 11a and 11b are placed on the mounting surface (the surface of the conveyor belt V) on which the plate glass G and the separated plate glass G1 and G2 are stacked And has a plurality of ventilation holes H for adsorbing or floating the plate glass. The gas supply / discharge source (not shown) allows the gas to be sucked and ejected through the ventilation holes H.

The conveying means of the plate glass cutting apparatus 1 is constituted by one movable-side conveyor 10, one fixed-side conveyor 11a and two fixed-side conveyors 11b, The configuration of the conveying means of the loading and unloading apparatus 1 is not limited to this but the number of the movable conveyors 10, the fixed conveyors 11a and the fixed conveyors 11b may be appropriately increased or decreased. The movable-side conveyor 10 may not necessarily be provided on the outer side of the fixed-side conveyor 11a, or may be formed between two or more fixed-side conveyors 11a. In addition, suction and ejection of the gas in the movable-side conveyor 10 may be controlled separately from the fixed-side conveyors 11a and 11b.

Between the both fixed side conveyors 11a and 11b adjacent to each other in the widthwise central portion of the plate glass cutting apparatus 1, a cut-out member 30 for pressing the plate glass G from the back side (lower side) And a cutting member 40 having a cutting edge for advancing from the folding member 30 to cut the protective sheet 50 (the details of the protective sheet will be described later) are provided. As the material of the tip end (upper end) of the cut-out member 30, PVC resin or the like can be used. The placement position of the cut-out member 30 is not limited to the position shown in Fig. 1, and even if the double-plated glass plates G1 and G2 after the cutting are provided so as to be asymmetric in the width direction with respect to the cut- good. In other words, the cut-out member 30 may be provided so that there is a difference in the sizes of the two glass plates G1 and G2 after the cutting.

As shown in Figs. 1 and 2, a plate glass G to be carried from the carry-in conveyor S to the plate glass separating device 1 and a separating plate A protective sheet 50 for protecting the plate glass is interposed between the pair of glass plates G1 and G2 and the conveyor belt V. [ The protective sheet 50 may be a film or sheet such as paper (cardboard), cloth, wood, cellophane, synthetic resin (polyethylene nylon, foamed urethane, rubber or the like) Can be used. The protective sheet 50 can be used as long as it is not listed above. Further, it is preferable that the protective sheet 50 has air permeability.

3, the cut-away member 30 includes a distal end portion 31 and a base portion 32. The distal end portion 31 includes a pair of divided bodies 31a having a gap Z between mutually opposite end faces, . The front end faces of the pair of divided bodies 31a are inclined planes inclined downward to be shifted to the outside in the width direction. The base portion 32 is composed of a pair of support plate members 32a which are fixed by using bolts 35 below the pair of divided bodies 31a. The cut-away member 30 is configured to be vertically moved by an elevation driving means such as a ball screw mechanism or a fluid pressure cylinder, which is not shown in the figure, connected to the lower portion of the pair of support plate members 32a.

A cutting member 40 for cutting the protective sheet 50 is interposed in the base portion 32 of the cutout member 30. As shown in Fig. The cutting member 40 has a cutting blade 40a located at the uppermost position and a holding member 40b for holding the cutting blade 40a from below. The cutting blade 40a is provided on the upper portion of the holding member 40b, Are fixed by using bolts 36. As shown in Fig. The cutting member 40 is configured to be vertically moved by a lift mechanism such as a ball screw mechanism or a fluid pressure cylinder, not shown. When the cutting member 40 is in a similar state, the cutting edge 40a is protruded from the tip of the two divided bodies 31a through the gap Z of the divided bodies 31a of the cutout member 30 Respectively.

The cutout member 30 and the cutting member 40 are not limited to the configuration shown in Fig. 3, and may be configured as shown in Figs. 4A and 4B, for example. That is, the cut-away member 30 shown in these drawings is configured such that both opposite end faces of the pair of divided bodies 30b constituting the distal end portion 31 can be joined and separated. The front end face of the pair of divided bodies 30b is a curved iron surface (approximately semicircular in section in the case of ceramic ceramics). The pair of divided bodies 30b are joined to each of the divided bodies 30b by the spring force of the compression spring 39 incorporated therein and are configured to be separated from each other against the spring force thereof. The pair of supporting plate members 30a constituting the base portion 32 are connected and integrated with each other via the connecting portion W. [ On the other hand, the cutting member 40 has a long hole 38 having a predetermined length in the up and down direction, and the connection portion W of the support plate 30a is inserted into the long hole 38. 4A, both split bodies 30b of the cutout member 30 are joined by the spring force of the compression spring 39, and the cutting members 40 The split members 30b are pushed against the spring force of the compression springs 39 and the cutting members 40 are pressed against the cutting edges 40a of the cutting members 40 as shown in Fig. (40a) protrudes from the tip end of both split bodies (30b).

Further, as shown in Fig. 5, the cut-out member 30 and the cutting member 40 may be configured so that a circular saw 40a fixed to the rotary shaft 60 is used as a cutting edge. In this configuration, the rotary shaft 60 is rotationally driven by a power source such as a motor (not shown), thereby rotating the circular saw 40a. The lower end of the holding body 40b is movable in the forward and backward direction from the front of the paper surface of Fig. 5 along a guide rail (not shown), and the circular saw 40a, which rotates as the holding body 40b moves, The protective sheet 50 is cut in order from the front to the inside. The other configurations are in accordance with the configuration shown in Fig. 3, and thus duplicate descriptions are omitted.

The cutout member 30 and the cutting member 40 may be configured as shown in Figs. 6A and 6B. The folding member 30 and the cutting member 40 are configured to be vertically movable independently of each other by means of elevating and lowering driving means. The folding member 40 is configured such that the folding member 30 is opposed to the folding member 30 as shown in FIGS. 6A and 6B And a mechanism capable of moving out of the cross section.

Next, the operation and effect of the plate glass cutting apparatus 1 according to the embodiment of the present invention will be described with reference to Fig. 7, the arrows attached to the movable-side conveyor 10 and the fixed-side conveyors 11a and 11b indicate the suction or ejection of the gas, the downward arrow X indicates the suction of the gas, The upward arrow (Y) indicates the eruption of the gas.

When the plate glass G disposed on the protective sheet 50 from the carry-in conveyor S shown in Figs. 1 and 2 is carried into the plate glass cutter 1, as shown in Fig. 7 (a) The conveyor 10 and both fixed-side conveyors 11a and 11b are arranged in the direction of C shown in Figs. 1 and 2 (in Fig. 7, immediately before the paper surface in the state of adsorbing the plate glass G via the vent holes H) Inward direction). The plate glass G to be conveyed stops at a predetermined cut-off position with respect to the conveying direction.

Subsequently, the plate glass G adsorbed to the movable-side conveyor 10 and both fixed-side conveyors 11a and 11b is lifted up by the cut-out member 30 as shown in Fig. 7 (b) And is cut into the plate glasses G1 and G2. Here, it is preferable that a dust collecting device for sucking a piece of glass to be discharged as a cut powder is provided above the cut end face of the plate glass. At this point in time, the cutting edge 40a of the cutting member 40 shown in Fig. 3 is retracted downward from the tip end face of both split bodies 31a of the cutout member 30. [

Immediately after the plate glass G is removed, both opposite ends of the both-plate glass plates G1 and G2 separated as shown in Fig. 7 (c) are located at the front end 31 of the bow member 30 (Front end surface of the both divided bodies 31a)), and a gap is formed between the opposite end surfaces of the cut glass plates G1 and G2. When the cutting blade 40a advances into the gap, the protective sheet 50 is cut.

After the cutting of the protective sheet 50, as shown in Fig. 7 (d), in the region for carrying the cut plate glass G2 (in Fig. 7, in the region on the left side with reference to the cut- The two fixed-side conveyors 11b carry the plate glass G2 in the C direction shown in Figs. 1 and 2 in a state in which the plate glass G2 is adsorbed, as before the plate glass G is cut.

On the other hand, in the region where the plate glass G1 is cut (in FIG. 7, the movable conveyor 10 is hereinafter referred to as the right conveying region in the right region with reference to the cut-out member 30) G1 from the reference position P1 toward the retracted position P2 in the direction of the arrow a as shown in Fig. 7 (d) Separation of the both-side glass plates G1 and G2 is started by starting the movement.

The fixed side conveyor 11a of the right conveying region releases the adsorption to the plate glass G1 when the movable conveyor 10 adsorbs the plate glass G1 and releases the adsorption of the plate glass G1 So that the plate glass G1 floats on the fixed-side conveyor 11a.

This makes it possible to prevent effectively the contact between the end faces of the glass plates G1 and G2 so that deterioration of the quality of the glass plate can be suppressed and at the same time the glass plates G1 and G2 can be transported It is possible to improve the working efficiency.

Since the movable-side conveyor 10 is provided so as to be positioned at the outermost side of the fixed-side conveyor 11a, the movable-side conveyor 10 is provided at the outermost side of the movable-side conveyor 11a, The distance between the movable range (the distance between the reference position P1 and the retracted position P2) of the conveyor 10 can be increased, so that the separated both plate glasses G1 and G2 can be separated over a longer distance. In addition, when the plate glass is separated from each other, there is no fixed-side conveyor 11a in front of the moving direction of the movable-side conveyor 10, so that there is no gap between the plate glass and the movable-side conveyor 10 and the fixed-side conveyor 11a It is difficult to peel the protective sheet 50 interposed therebetween, so that it is difficult to peel the plate glass from the protective sheet by sticking to the end face or the edge of the plate glass with the fin protective sheet removed, and it becomes difficult to control the conveying and stop positions of the plate glass And the like can be prevented.

As shown in Fig. 7 (d), when the movable conveyor 10 moves while sucking the plate glass G1 in the direction of arrow a and reaches the retracted position P2 as shown in Fig. 7 (e) At this point, the separation of the plate glass G1 and the plate glass G2 is completed. The movable conveyor 10 arriving at the retreat position P2 releases the suction of the plate glass G1 and ejects the gas from the vent hole H toward the plate glass G1 to move the plate glass G1 And starts to move from the retracted position P2 to the reference position P1 in the direction of the arrow b shown in FIG. 7 (f) under the plate glass G1.

On the other hand, the fixed-side conveyor 11a stops the ejection of the gas against the plate glass G1 when the movable-side conveyor 10 reaches the retreat position P2 and releases the suction of the plate glass G1, (Conveying is performed while maintaining the separation distances of both glass plates G1 and G2 constant) in the direction C shown in Figs. 1 and 2 while adsorbing the glass plate G1.

7 (f), both fixed-side conveyors 11a and 11b of the left-side conveying area and the right-side conveying area carry the untreated double-pane glasses G1 and G2 to the take-out side conveyor R, The new plate glass G scheduled to be cut ends is picked up from the side conveyor S and carried in the direction of C shown in Figs. 1 and 2 toward the cut end position.

7 (g), when the movable-side conveyor 10 returns to the reference position P1 while ejecting the gas towards the plate glass G1, the movable-side conveyor 10 stops the ejection of the gas, And conveys the new plate glass G scheduled to be cut together with both the fixed side conveyors 11a and 11b of the conveying area and the right conveying area to the finish position while sucking it.

As shown in Fig. 7 (h), when the new plate glass G conveyed to the movable conveyor 10 and both fixed conveyors 11a and 11b stops at a predetermined cutter position, a new plate glass G I am ready to kick off.

As described above, the operations shown in Figs. 7 (a) to 7 (h) are carried out repeatedly by the plate glass cutting apparatus 1 to carry out removal of both glass plates G1 and G2 into the carry- The new plate glass G can be carried in simultaneously and continuously from the carry-in side conveyor S, so that the working efficiency can be improved. In addition, since it is possible to prevent the cut end faces of the cut glass plates G1 and G2 from coming into contact with each other, it is possible to effectively suppress the deterioration of the quality of the glass plate.

In the present embodiment, the conveyance of the new plate glass G carried from the carry-in conveyor S to the take-off position of the new plate glass G carried from the carry-in conveyor S to the cut- 11b, but may be configured to be performed only on both the fixed-side conveyors 11a, 11b. In this case, when the movable conveyor 10 returns from the retracted position P2 to the reference position P1, the cutter of the new plate glass G carried from the carry-in conveyor S to the plate glass cutter 1 The timing of returning to the reference position P1 does not matter.

Further, in the present embodiment, the conveyor belt is used as the conveying means for conveying the plate glass, but the present invention is not limited to this, and other conveying means may be used.

As described above, according to the present invention, since the cutting step by cutting the plate glass and the cutting step of the protective sheet for protecting the plate glass from the back side are performed in conjunction with each other in the same working area, the working space is reduced, The work time is shortened, and the working efficiency is improved.

1: Plate glass cutting device 10: Movable conveyor
11a: Fixed side conveyor 11b: Fixed side conveyor
30: Cutting member 30a: Support plate
30b: divided body 31: distal end
31a: divided body 32: donor
32a: support plate 40: cutting member
40a: cutting blade 40b:
50: protective sheet G: plate glass
G1: Flat plate glass G2: Flat plate glass
H: Vent hole P1: Reference position
P2: Depression position X: Aspiration of gas
Y: Spout of gas a: Moving direction of movable conveyor
b: Moving direction of the movable conveyor

Claims (8)

A plate glass separating apparatus which is disposed on a protective sheet and presses a plate glass whose surface is processed with a scribe line from a back surface,
A scraping member for pressing the plate glass from the back surface and separating the plate glass along the scribe line between the support means for supporting the plate glass on both side regions of the scribe line, There is provided a cutting member having a cutting edge that advances into the opposite end face to cut the protective sheet,
Wherein the cut-away member presses the plate glass, and the cut-away member raises the opposite end with respect to the plate glass after the cut-off, and in a state in which the cut- And the cutting edge advances between the opposed cross-sections. The method according to claim 1,
Wherein the cutting member is mounted on the cut-away member and the cutting edge of the cutting member is capable of being extracted from the leading end of the cut-away member. 3. The method according to claim 1 or 2,
Characterized in that the leading end portion of the cut-away member is constituted by a pair of divided bodies having a gap between mutually opposite cross sections, and the cutting blade of the cutting member is made to move out through the gap of the pair of divided bodies Device. 3. The method according to claim 1 or 2,
Wherein the supporting means is one or a plurality of conveying means which are respectively provided at both side regions of the scribe line of the plate glass and perform a conveying action and at least one conveying means Wherein at least one conveying means present in a region on the other side of the conveying means is moved toward and away from the conveying means. 5. The method of claim 4,
A plurality of conveying means are provided in parallel in at least one of the one area and the other area, and at least one of the conveying means is movable for the approaching and separating, and at least one of the plurality of conveying means Wherein said movable means capable of moving and at least one of the other conveying means are capable of adsorbing and releasing said plate glass. 6. The method of claim 5,
And the gas is jetted to the plate glass at the time of releasing the adsorption to the plate glass. 6. The method of claim 5,
Wherein the movable transfer means is provided at an outermost position in the arrangement direction of the plurality of transfer means. 6. The method of claim 5,
Wherein the plurality of conveying means including the movable conveying means is provided in the one region and the conveying means provided in the other region is not movable.

Images