TW201420465A - Glass plate conveyance device and glass plate conveyance method - Google Patents

Abstract

A glass plate conveyance device is configured in such a manner that a glass plate is conveyed by the rotation of conveyance rollers, on the outer peripheries of which elastic members coming into contact with the glass plate are arranged, and which are arranged at desired intervals in the conveyance direction of the glass plate. Tape-like guide members are passed over the conveyance rollers and guide, at a desired height, the ends of the glass plate in the conveyance direction. The tape-like guide members are passed over the outer peripheries of the conveyance rollers, the outer peripheries being located between the elastic members, and this enables the tape-like guide members to travel as the conveyance rollers rotate.

Description

Glass plate conveying device and glass plate conveying method

The present invention relates to a glass sheet conveying apparatus and a glass sheet conveying method.

For example, in a production line for a flat panel display (liquid crystal display, plasma display, etc.) and a production line for a flat glass plate, a plurality of transfer rollers are disposed at a required interval to the transport path of the glass plate, and the glass is placed. The plate is conveyed while being in contact with an O-ring provided on the outer circumference of each of the transfer rollers (see, for example, Patent Document 1).

Further, the interval between the transfer rollers (the distance between the transport directions) is appropriately set in consideration of the deflection depending on the thickness of the glass plate to be conveyed or the rigidity of the glass plate. Therefore, the glass plate having a predetermined thickness can smoothly move on each of the conveying rollers without falling into the lower side of the conveying roller during the conveyance on the conveying path by the rotation of each conveying roller.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2007-84282

In recent years, as a glass plate for a flat plate, there is a tendency that the thickness is further reduced. However, since the base supporting each of the conveying rollers is fixed to the bottom surface, even if the thickness of the glass sheet is changed, the interval between the conveying directions of the respective conveying rollers cannot be simply adjusted according to the thickness of the glass sheet. In the glass sheet conveying apparatus in which a plurality of conveying rollers are provided at a desired interval on the conveying path, even if the glass sheet having a thinner thickness is conveyed, the respective sheets are not adjusted. When the conveyance rollers are conveyed at intervals, the rigidity in the thickness direction of the glass sheet is reduced in accordance with the thickness. Therefore, the end portion of the glass sheet in the conveyance direction (hereinafter also referred to as the front end portion) is transferred to the next conveyance. The roller is deflected downward before it, so that it cannot pass through the upper side of the conveying roller.

Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a glass sheet conveying apparatus and a glass sheet conveying method which solve the above problems.

According to one aspect of the invention, a glass sheet conveying apparatus is provided, wherein a conveying roller that has a plurality of elastic members that are in contact with a glass sheet on an outer circumference is disposed in a plurality of required intervals in a conveying direction of the glass sheet. The glass plate is conveyed by the rotation of the conveyance roller, and a belt-shaped guide member that guides an end portion of the glass sheet in a conveyance direction to a desired height is wound between the plurality of conveyance rollers, the belt The guide member is wound around the outer circumference of the transfer roller between the plurality of elastic members, and travels together with the rotation of the transfer roller.

According to the present invention, for example, even if the thickness of the glass plate is thin, the end portion of the glass plate is conveyed and guided to the upper side of the conveying roller while being in contact with the belt-shaped guiding member wound between the plurality of conveying rollers. It can prevent the end of the glass plate from entering the transfer roller.

10‧‧‧Glass plate conveying device

20, 20A, 20B‧‧‧Transport roller

22‧‧‧Rotary axis

22a, 22b‧‧‧ end

24‧‧‧Sprocket

26‧‧‧Chapter

28‧‧‧ outer perimeter

30‧‧‧Base

32, 34‧‧‧Support Department

40‧‧‧Transport motor

42‧‧‧Speed reduction mechanism

50‧‧‧Flexible components

60‧‧‧ annular protrusion

70, 70A~70C‧‧‧belt guiding members

G‧‧‧glass plate

G1‧‧‧ front side

G2‧‧‧ rear end

H1‧‧‧ thickness

H2‧‧‧ Height

L1‧‧‧Width

L2‧‧‧ distance

Fig. 1 is a perspective view showing an embodiment of a glass sheet conveying apparatus.

2(A) to 2(C) are views showing a state in which the outer surface of the elastic member of the conveying roller of the glass sheet and the glass sheet conveying device is in contact with each other, and a front view of the glass sheet guided by the belt-shaped guiding member.

Fig. 3 is a plan view showing a conveying path of a glass sheet guided by a belt-shaped guiding member wound between the respective conveying rollers.

4(A)-(D) show the guidance by a belt-shaped guiding member wound between the respective conveying rollers Side view of the transport operation of the glass plate.

The embodiments of the present invention are described below with reference to the drawings, but the present invention is not limited by the following embodiments, and various changes may be made to the following embodiments without departing from the scope of the invention. And replacement.

[Composition of glass plate conveying device]

Fig. 1 is a perspective view showing an embodiment of a glass sheet conveying apparatus of the present invention. As shown in Fig. 1, the glass sheet conveying apparatus 10 is disposed on a conveying path of the glass sheet G, and a plurality of cylindrical conveying rollers 20 are disposed at a required interval in the conveying direction of the glass sheet G (in Fig. 1) Shows the composition of 4). Each of the transport rollers 20 inserts a cylindrical rotating shaft 22 into a substantially center of both end faces of the respective conveying rollers 20, and both end portions 22a and 22b of the rotating shaft 22 are supported by the both ends of the base 30. And 34 are supported in such a manner that they can be rotated at the same height position. Further, a pair of sprockets 24 are fitted to the end portion 22b on the right side of the rotating shaft 22.

Each of the sprockets 24 is wound around the chain 26, and the rotational driving force of the transport motor 40 is transmitted to the sprocket 24 disposed on the upstream side of the transport path via the speed reduction mechanism 42. Since the sprocket wheels 24 are simultaneously rotationally driven in the same direction by the chain 26, the rotation shafts 22 of the respective conveying rollers 20 are simultaneously rotationally driven in the same direction as the sprocket wheels 24 at the same time.

Further, on the outer peripheral surface 28 of each of the transport rollers 20, an annular projecting portion 60 for fitting a plurality of elastic members 50 is formed at a required interval in the axial direction of the transport roller 20. Further, as the elastic member 50, a rubber material having a circular cross section or a rubber material having a rectangular cross section may be used. Further, the elastic member 50 is disposed on the outer circumferential surface 28 of the conveying roller 20 via the annular protruding portion 60. However, the elastic member 50 may be directly disposed on the outer circumferential surface 28 of the conveying roller 20.

Further, in order not to scratch the glass sheet G, the elastic member 50 preferably contains a softer material than glass, and is formed of, for example, an acid-resistant rubber material such as fluororubber, ethylene propylene rubber or nitrile rubber. shape. Further, the elastic member 50 has a coefficient of friction higher than that of the annular projecting portion 60 formed of a resin material, and is in close contact with the lower surface of the glass sheet G to be conveyed. Therefore, as described below with reference to FIG. 4, the glass plate G to be conveyed is driven over the outer periphery of the elastic member 50 disposed at a position protruding from the outer peripheral surface 28 of the transfer roller 20 in the radial direction, and the grounded transmission is driven toward the conveyance direction. force. Therefore, the glass plate G is reliably conveyed by the rotation of the elastic member 50. Further, since the plurality of elastic members 50 are disposed in the axial direction at a relatively small interval, the conveying roller 20 can be in contact with a plurality of portions in the left-right direction (the direction orthogonal to the X direction) of the glass sheet G. The thin glass plate G is conveyed while maintaining a substantially horizontal state.

The glass plate G is formed to have a thickness of, for example, 0.4 mm or less, preferably 0.2 mm or less, and more preferably 0.1 mm or less. As shown by the single-dot chain line in Fig. 1, the glass sheet G is in the transport direction (X direction) such that a main surface (hereinafter also referred to as "lower surface") is in contact with the outer periphery of each elastic member 50 of each of the transport rollers 20. ) Transfer on. In addition, the glass plate G has a different length in the transport direction in each step, and a glass plate having a long strip shape in the transport direction or a rectangular glass plate cut into an arbitrary size during transport is used. .

In the present embodiment, the belt-shaped guiding member 70 is wound between the plurality of conveying rollers 20. The belt-shaped guiding member 70 is provided to guide the end portion of the glass sheet G in the conveying direction to the upper outer circumference of the elastic member 50 of the conveying roller 20 disposed in the conveying direction. The belt-shaped guiding member 70 is wound between a plurality of conveying rollers 20 so as to extend in the conveying direction of the glass sheet G. Specifically, a plurality of the strip-shaped guiding members 70 are wound between the plurality of conveying rollers 20, respectively. Therefore, the lower surface of the glass sheet G is supported by the respective elastic members 50 when the glass sheet G passes over the conveying roller 20, and is supported by the belt-shaped guiding member 70 just before and immediately after the glass sheet G passes between the respective conveying rollers 20. . Therefore, the glass plate G between the plurality of conveying rollers 20 is supported by the belt-shaped guiding member 70, and the front end portion and the rear end portion in the conveying direction are prevented from being deflected downward, and are stably maintained while being substantially horizontal. The conveyance is carried out toward the conveyance roller 20 disposed downstream of the downstream.

Furthermore, in the present embodiment, the belt-shaped guide member 70 can be configured to be wound around at least two of the axial direction of the conveyance roller 20 (the direction orthogonal to the X direction). Thereby, the glass plate G is in contact with the tape-shaped guide member 70 at least two or more places in the axial direction of the conveyance roller 20 of the lower surface.

Here, an effect of the case where the belt-shaped guide member 70 is configured to be wound around at least two locations in the axial direction of the conveyance roller 20 will be described.

Even when the belt-shaped guiding member 70 wound between the plurality of conveying rollers 20 exists only in one portion of the axial direction of the conveying roller 20, it can be supported by the belt-shaped guiding member 70 by the glass sheet G. In addition, the side end portion and the rear end portion of the glass sheet G are deflected downward in the conveyance direction, and the glass sheet G is stably guided toward the next conveyance roller 20 to be conveyed.

However, the strip-shaped guide member 70 can be formed by winding at least two or more portions in the axial direction of the conveying roller 20, and the glass sheet G can be made of two or more portions in the axial direction of the conveying roller 20 The belt guide member 70 is supported so that the glass sheet G can be conveyed more stably. By this, for example, it is possible to prevent the portion of the glass sheet G that is separated from the belt-shaped guide member 70 from being deflected downward in the conveying direction end portion of the glass sheet G, and cannot pass through the lower side in the downstream side in the conveying direction. The upper side of the conveying roller 20 is in contact with the conveying roller 20 to cause breakage.

Therefore, in the present embodiment, the plurality of strip-shaped guide members 70 may be wound around the plurality of strip-shaped guide members 70 so that the strip-shaped guide members 70 are disposed at at least two portions of the axial end portions of the transport roller 20 There are 20 transfer rollers. Further, the belt-shaped guiding members 70 may be disposed on the both end portions of the axial direction of the conveying roller 20 and the three portions of the center portion, and the plurality of belt-shaped guiding members 70 may be wound around the plurality of conveying rollers 20, respectively. between. Further, the plurality of belt-shaped guiding members 70 can be wound around the center portion of the conveying roller 20 in the axial direction of the opposite direction.

In the case where the belt-shaped guide member 70 is present only in one portion of the axial direction of the conveyance roller 20, the belt-shaped guide member 70 can be wound around the center portion of the conveyance roller 20 in the axial direction.

A plurality of strip-shaped guiding members 70 are disposed at both ends of the axial direction of the conveying roller 20 At least two portions of the portion are wound between the plurality of conveying rollers 20, whereby the lower surface of the glass sheet G is supported by the elastic members 50 when the glass sheet G passes over the conveying roller 20, and The glass sheet G is supported by a plurality of strip-shaped guiding members 70 immediately before and immediately after passing between the respective conveying rollers 20. Therefore, the glass plate G between the plurality of conveying rollers 20 is supported by the plurality of belt-shaped guiding members 70, thereby suppressing the front end portion and the rear end portion in the conveying direction from being deflected downward, while maintaining a substantially horizontal state. It is conveyed stably guided toward the conveyance roller 20 arrange|positioned downstream.

Further, each of the strip-shaped guiding members 70 is wound around the upstream side and the downstream side of the respective conveying rollers 20 in the conveying direction. Therefore, as described below with reference to Fig. 4, in the conveyance process, the front end portion of the glass sheet G is supported by the respective belt-shaped guiding members 70 wound on the upstream side of a conveying roller 20, and the rear end portion of the glass sheet G is Each of the strip-shaped guiding members 70 wound on the downstream side of the one conveying roller 20 is supported. Therefore, in the process of passing through the transport path, the glass sheet G passes through the elastic members 50 of the transport roller 20, the strip-shaped guide members 70 on the upstream side of the transport roller 20, and the downstream side of the transport roller 20. Each of the strip-shaped guide members 70 appropriately supports the plurality of portions, and guides the front end portion and the rear end portion so as not to collide with the conveyance roller 20, and stably conveys the conveyance to the next conveyance roller 20.

Further, each of the strip-shaped guiding members 70 is wound around the outer peripheral surface 28 between the elastic members 50 of the respective conveying rollers 20, and is formed into a thin strip shape so as to have a thickness lower than that of the elastic member 50. Further, each of the strip-shaped guiding members 70 is a resin tape, a rubber tape, a cloth tape or the like which does not scratch the glass sheet G and is made of a glass soft material. Further, each of the strip-shaped guide members 70 has a ring shape in which both end portions in the longitudinal direction are combined with a hook and a loop fastener (a hook and a loop fastener). A belt-shaped guiding member 70 is formed by a belt or a combination of two or more belts.

Each of the strip-shaped guiding members 70 can be simply joined or uncoupled by the planar fasteners, and therefore, can be provided at any portion of each of the conveying rollers 20, and the installation portion can be easily changed. Further, each of the strip-shaped guiding members 70 can be wound between a pair of conveying rollers 20, and if the total length is wide Yu can also be wound between three transfer rolls 20.

Further, the plurality of strip-shaped guiding members 70 may be arranged such that the same position of the lower surface of the glass sheet G is discontinuously contacted with the strip-shaped guiding member 70, and the winding position of the conveying roller 20 in the axial direction is set. Randomly staggered the configuration of the configuration. Therefore, since the same portion of the lower surface of the glass sheet G is prevented from coming into contact with the belt-shaped guiding member 70, the glass sheet G is conveyed so as not to cause a trace caused by contact with the belt-shaped guiding member 70. Further, since the belt-shaped guiding member 70 travels at the same speed as the glass sheet G in the conveying direction, the friction between the belt-shaped guiding member 70 and the glass sheet G can be avoided, so that the belt-shaped guiding member 70 is less likely to be generated. Carrying in the way of contact with the traces caused by the contact. Further, since the belt-shaped guiding member 70 is formed of a material softer than the glass sheet G (for example, a resin tape or a cloth tape, etc.), it is less likely that the above-described marks are generated on the lower surface of the glass sheet G.

Hereinafter, a case where the belt-shaped guide member 70 is configured to be wound around at least two portions of the conveyance roller 20 in the axial direction will be described as an example.

2 is a front view showing a state in which the glass plate G is in contact with the outer periphery of the elastic member 50 of the conveying roller 20 of the glass sheet conveying device 10 and a glass plate G guided by the belt-shaped guiding member 70. As shown in FIG. 2(A), when the glass sheet G passes through the conveying roller 20, it is conveyed while being slidably attached to the outer periphery of each of the elastic members 50 fitted to the annular projecting portion 60. Further, the belt-shaped guiding member 70 is wound around the outer circumferential surface 28 formed at a position where the thickness H1 is lower than the outer circumferential height H2 of each elastic member 50. In other words, since the thickness H1 of the belt-shaped guiding member 70 is thinner than the height H2 from the outer circumference of the conveying roller 20 to the outer circumference of the elastic member 50, the belt-shaped guiding member 70 is not in contact with the glass sheet G in the vicinity of the conveying roller 20. (H1 < H2).

Further, as shown in FIG. 2(A), since the interval between the elastic members 50 which are protruded in the radial direction from the outer peripheral surface 28 and disposed in the axial direction of the conveying roller 20 is narrow, the glass sheet G passes through the respective conveying rollers. At 20 o'clock, the glass sheet G is slidably connected to the outer periphery of each elastic member 50, and is in a substantially horizontal state. Therefore, in the vicinity of the conveying roller 20, the glass sheet G is not always in contact with the respective belt-shaped guiding members 70, and is partially connected to the respective belt-shaped guiding members 70 when passing between the conveying rollers 20. Therefore, it is difficult to leave traces caused by contact with the respective belt-shaped guiding members 70.

Moreover, the width L1 of each of the strip-shaped guide members 70 orthogonal to the conveyance direction is set to be equal to or smaller than the distance L2 between the annular projections 60 (L1 < L2).

As shown in FIG. 2(B), when the glass plate G is guided by the pair of belt-shaped guiding members 70 on the lower surface, the belt-shaped guiding members 70 are used in the left-right direction (Fig. In the symmetrical manner of the X direction of the first direction, the vicinity of the peripheral portion of the left and right sides is guided, and the central portion between the strip-shaped guiding members 70 is deflected downward. Therefore, the glass plate G is used to push up the two sides of the left and right symmetry so as to maintain the balance between the right and left.

As shown in Fig. 2(C), when the glass plate G is guided by the strip-shaped guiding member 70 at the lower surface, the strip-shaped guiding member 70 is used in the left-right direction (Fig. 1). In the symmetrical manner in the X direction, the vicinity of the peripheral portion on the left and right sides and the central portion between the strip-shaped guiding members 70 are guided, and thus the strip guiding members 70 are slightly deflected downward. . Therefore, the glass plate G is pushed up by three parts so as to maintain the balance in the left-right direction. The contact area with the lower surface of the glass sheet G will increase as the number of the strip-shaped guiding members 70 is increased, so that the downward deflection becomes small.

Therefore, as shown in FIGS. 2(B) and 2(C), the glass sheet G is transported between the transport rollers 20, in the vicinity of both ends in the left-right direction, or in the vicinity of the two ends in the left-right direction and in the center. The three adjacent portions are in contact with the belt-shaped guiding member 70 to restrict the height position, and when passing through the vicinity of the conveying roller 20, are guided to the outer periphery of each elastic member 50 by the belt-shaped guiding member 70, thereby It is conveyed in contact with the outer periphery of each elastic member 50.

Further, since the belt-shaped guiding member 70 is disposed between the elastic members 50, the width L1 of the belt-shaped guiding member 70 (the dimension in the direction orthogonal to the X direction in Fig. 1) is required to be equal to or less than the distance between the elastic members 50. The width dimension. Therefore, when the strip-shaped guiding member 70 comes into contact with the lower surface of the glass sheet G, it can correspond to the contact area with the glass sheet G, and the stress concentration in the contact portion is prevented, thereby stably supporting the load of the glass sheet G.

Figure 3 is a view showing the belt guide member 70 wound between the respective conveying rollers 20. Plan view of the transport path of the glass plate G. As shown in FIG. 3, the winding direction of each of the belt-shaped guiding members 70 between the conveying rollers 20 is preferably parallel to the conveying direction (X direction) of the glass sheet G and the rotation direction of the conveying roller 20. When the winding direction of each of the strip-shaped guiding members 70 is parallel to the conveying direction of the glass sheet G and the rotation direction of the conveying roller 20, the conveying direction of the glass sheet G by the conveying roller 20 and the belt-shaped guiding members 70 are The rotation directions are uniform, and the lower surface of the glass sheet G is not scratched by the respective belt-shaped guiding members 70, and therefore, it becomes less likely that traces are formed on the lower surface of the glass sheet G.

Moreover, in order to maintain the parallelism of each of the strip-shaped guide members 70, it is preferable to set the width L1 orthogonal to the conveyance direction to a desired size (for example, L1 = 20 mm or more and the distance L2 between the adjacent annular projections 60 ( Shown in Figure 2 (A)) below).

[Glass plate transfer operation]

FIG. 4 is a side view showing a conveying operation of the glass sheet G guided by the belt-shaped guiding member 70 wound between the respective conveying rollers 20. In addition, in FIG. 4, illustration of the base 30, the sprocket 24, the chain 26, and the conveyance motor 40 is abbreviate|omitted. Here, the length of the glass sheet G in the transport direction (X direction) is formed to be short, and the process of the front end portion and the rear end portion of the glass sheet G in the transport direction passing through the transport roller 20 will be described.

As shown in Fig. 4 (A), when the rotational driving force of the transport motor 40 (see Fig. 1) is transmitted to the transport rollers 20A and 20B (described separately from the transport rollers 20 of Figs. 1 to 3), the transport roller 20A is placed. When the 20B is rotationally driven in the counterclockwise direction in FIG. 4, the lower surface of the glass sheet G is in contact with the outer circumference of each of the elastic members 50 of the first (upstream side) conveying roller 20A in the X direction (the rotation direction of the conveying roller 20). ) on the transfer. At this time, the substantially intermediate portion of the glass sheet G in the X direction is in contact with the outer circumference of the elastic member 50, and the rotational driving force of the elastic member 50 is transmitted to be conveyed in the X direction. Further, the front end portion G1 of the glass sheet G in the transport direction is in contact with a plurality of strip-shaped guide members 70B wound between the first transport roller 20A and the second (downstream) transport roller 20B, and It is guided so as not to fall to a position where the height position is lower than the outer peripheral surface 28 of the conveying roller 20A. Further, the rear end portion G2 of the glass sheet G in the transport direction is similarly wound The plurality of strip-shaped guide members 70A that are wound around the upstream side of the first transport roller 20A are in contact with each other, and are guided so as not to fall to a position where the height position is lower than the outer peripheral surface 28 of the first transport roller 20A. Thereby, the rear end portion G2 of the glass sheet G can be prevented from sagging to the lower side of the first conveying roller 20A by the respective belt-shaped guiding members 70A.

In the conveyance state, the front end portion G1 of the glass sheet G is supported by the belt-shaped guide members 70B on the downstream side, and the intermediate portion of the conveyance direction is driven by the elastic members 50 of the conveyance roller 20A, and the rear end portion G2 is driven. It is supported by each of the strip-shaped guiding members 70A on the upstream side. Therefore, even if the glass plate G is deflected in a state in which the intermediate portion is lifted up, it is conveyed while maintaining a substantially horizontal state.

As shown in FIG. 4(B), when the glass sheet G is conveyed in the X direction, the front end portion G1 in the conveyance direction of the glass sheet G is in contact with the belt-shaped guide member 70B wound between the conveyance rollers 20A and 20B. The height position is restricted, and the rear end portion G2 is in contact with the upper side of the upper side of the elastic member 50 that protrudes in the radial direction from the outer peripheral surface 28 of the first conveying roller 20A (the upper side is closer to the center of rotation), and is driven in the X direction. force. In the conveyance state, the front end portion G1 of the glass sheet G is supported by the belt-shaped guide members 70B on the downstream side, and the intermediate portion of the conveyance direction is separated from the elastic members 50 of the conveyance roller 20A, and the rear end portion G2 and Each of the elastic members 50 of the conveying roller 20A is driven in contact. Therefore, even if the glass plate G is in a state in which the intermediate portion is suspended, the front end portion G1 and the rear end portion G2 are conveyed in a substantially horizontal state.

As shown in FIG. 4(C), when the glass sheet G is further conveyed in the X direction, the front end portion G1 of the glass sheet G in the conveyance direction is guided to the second conveyance roller 20B by the belt-shaped guide member 70B. The upper side (the upper side than the center of rotation) is in contact with the outer periphery of the elastic member 50 which is rotated counterclockwise in FIG. At the same time, the front end portion G1 is transmitted from the elastic member 50 in the rotational direction, and is moved in the X direction while being lifted up above the belt-shaped guiding member 70B. Further, the rear end portion G2 is in contact with the belt-shaped guide member 70B wound between the conveyance rollers 20A and 20B to guide the height position. In the conveyance state, the front end portion G1 of the glass sheet G is driven by the elastic members 50 of the second transfer roller 20A, and the conveyance direction is The intermediate portion is suspended from the respective belt-shaped guiding members 70B, and the rear-side end portion G2 is supported by the respective belt-shaped guiding members 70B on the upstream side. Therefore, even if the glass plate G is in a state in which the intermediate portion is suspended, the front end portion G1 and the rear end portion G2 are conveyed in a substantially horizontal state.

As shown in Fig. 4(D), when the glass sheet G is further conveyed in the X direction, the glass sheet G is in contact with the outer surface of the elastic member 50 of the second conveying roller 20B in the lower middle surface of the substantially intermediate portion in the conveying direction. The X direction is carried. At this time, the belt-side guide member 70C between the front end portion G1 in the conveyance direction of the glass sheet G and the conveyance roller 20 wound on the downstream side comes into contact with each other so as not to fall to the height position lower than the outer circumference of the conveyance roller 20B. The way of the position of 28 is guided. In addition, the rear end portion G2 of the glass sheet G in the transport direction is also in contact with each of the strip-shaped guide members 70B on the upstream side so as not to fall to a position where the height position is lower than the outer peripheral surface 28 of the transport roller 20B. Being guided. Thereby, the front end part G1 of the glass plate G is prevented from being fitted to the lower side of the 2nd conveyance roller B in the said conveyance process.

In this manner, the front end portion G1 and the rear end portion G2 of the glass sheet G are in contact with the respective belt-shaped guiding members 70A to 70C wound between the respective conveying rollers 20, and are conveyed while guiding the height position. When the conveyance rollers 20 are transported between the conveyance rollers 20, they are restricted so as not to fall below the outer circumferential surface 28 of the conveyance roller 20, thereby preventing collision with the conveyance roller 20.

In addition, when the thickness of the glass sheet G is reduced (for example, the thickness is 0.4 mm or less), the rigidity of the glass sheet G is lowered, and therefore, the portion in contact with each of the strip-shaped guide members 70 is slightly deflected downward. It is carried. In addition, as shown in FIG. 2 (B) and (C) above, each of the strip-shaped guide members 70 is disposed so as to be bilaterally symmetrical in the axial direction of the transport roller 20, and the strip guide is disposed. Since the lead member 70 is wound in parallel with the conveyance direction of the glass sheet G (the rotation direction of the conveyance roller 20), a plurality of the guide members 70 are balanced so as to maintain the balance between the left and right directions of the glass sheet G (the direction orthogonal to the conveyance direction). The part rises up, so it does not fall much. In addition, since the front end portion G1 of the glass sheet G moves together with the belt-shaped guide member 70 in the conveyance direction and contacts the outer circumference of the upper side of the elastic member 50 of the conveyance roller 20 (the upper side is closer to the rotation center), , can be prevented from being embedded on the lower side of the conveying roller 20, so that smooth operation can be performed The glass plate G is transported.

Further, when the strip-shaped guiding member 70 is not wound between the respective conveying rollers 20, if the thickness of the glass sheet G is thin (for example, the thickness is 0.4 mm or less), the glass passing through the first conveying roller 20 exists. When the front end portion G1 of the plate G passes through the second conveying roller 20, it is caught in the rotation direction of the second conveying roller 20, and is inserted into the lower side of the second conveying roller 20 to be broken. However, according to the present embodiment, since each of the strip-shaped guide members 70 wound between the respective conveyance rollers 20 travels in the conveyance direction while supporting the glass sheet G, it is possible to prevent the front end portion G1 of the glass sheet G from being fitted to the front end portion G1. The lower side of the conveyance roller 20 is also prevented from coming into contact with the conveyance roller 20 in a state where the rear end portion G2 is drooped.

Further, in the case where the entire length of the glass sheet G is long, as shown in FIGS. 3 and 4, the end portions G1 and G2 of the glass sheet G are conveyed by the respective belt-shaped guiding members 70, so that Smoothly transported. Further, the thinner the thickness of the glass sheet G, the more effectively the function of guiding the strip-shaped guide members 70 can be, and the glass can be smoothly polished without adjusting the interval between the transport rollers 20 (the distance between the transport directions). Transfer of board G.

Moreover, in the above-described embodiment, the transport path of the glass plate G for transporting the flat plate has been described. Of course, the present invention is not limited thereto, and the present invention can also be applied to a production line of a glass plate or a thin machine using a glass plate (a flat panel display). Production lines for touch panels, LED (Light-Emitting Diode) illumination, solar cells, secondary batteries, etc.

The preferred embodiments and examples of the present invention have been described in detail above, but the present invention is not limited to the specific embodiments and examples described above, and can be carried out within the scope of the spirit of the invention described in the claims. Various changes and changes.

The present application is based on the priority of Japanese Patent Application No. 2012-227005, filed on Jan.

10‧‧‧Glass plate conveying device

20‧‧‧Transport roller

22‧‧‧Rotary axis

22a, 22b‧‧‧ end

24‧‧‧Sprocket

26‧‧‧Chapter

28‧‧‧ outer perimeter

30‧‧‧Base

32, 34‧‧‧Support Department

40‧‧‧Transport motor

42‧‧‧Speed reduction mechanism

50‧‧‧Flexible components

60‧‧‧ annular protrusion

70‧‧‧Strip guide members

G‧‧‧glass plate

Claims (9)

A glass sheet conveying apparatus characterized in that a conveying roller that has a plurality of elastic members that are in contact with a glass sheet on the outer circumference is disposed in a plurality of required intervals in a conveying direction of the glass sheet, and the conveying roller is provided by the conveying roller When the glass plate is rotated and conveyed, a belt-shaped guiding member that guides an end portion of the glass sheet in a conveying direction to a desired height is wound between the plurality of conveying rollers, and the belt-shaped guiding member The outer circumference of the conveying roller wound between the plurality of elastic members travels together with the rotation of the conveying roller. The glass sheet conveying apparatus according to claim 1, wherein the belt-shaped guiding member guides an end portion of the glass sheet to an upper outer circumference of an elastic member of a conveying roller disposed on a downstream side in the conveying direction. The glass sheet conveying apparatus according to claim 1 or 2, wherein the thickness of the belt-shaped guiding member is thinner than a distance from a periphery of the conveying roller to an outer circumference of the elastic member. The glass sheet conveying apparatus according to any one of claims 1 to 3, wherein the belt-shaped guiding members are disposed at least two or more in the axial direction of the conveying roller. The glass sheet conveying apparatus according to any one of claims 1 to 4, wherein the belt-shaped guiding member is formed of a material softer than the glass sheet. The glass sheet conveying apparatus according to any one of claims 1 to 5, wherein the winding direction of the belt-shaped guiding member is parallel to a rotation direction of the conveying roller. The glass sheet conveying apparatus according to any one of claims 1 to 6, wherein the glass sheet has a thickness of 0.4 mm or less. The glass sheet conveying apparatus according to any one of claims 1 to 7, wherein the width of the strip-shaped guiding member in a direction orthogonal to a conveying direction of the glass sheet is abutting The distance between the plurality of elastic members is below. A glass sheet conveying method, which is characterized in that, by using the glass sheet conveying device according to any one of claims 1 to 8, by a belt-shaped guiding member wound between the plurality of conveying rollers, The glass sheet conveyed by the rotation of a plurality of conveying rollers is guided to the outer circumference of the upper side of the plurality of conveying rollers.