WO2008038452A1

WO2008038452A1 - Glass member fusing device and glass fusing system using it

Info

Publication number: WO2008038452A1
Application number: PCT/JP2007/064419
Authority: WO
Inventors: Kiyoshi Takeuchi; Yasukuni Iwasaki
Original assignee: Shinmaywa Industries, Ltd.
Priority date: 2006-09-27
Filing date: 2007-07-23
Publication date: 2008-04-03
Also published as: TW200815299A; JP2008081345A; CN101346317A; KR20090082308A

Abstract

A glass member fusing device comprises a base member (1) having a major surface on which glass members (10, 11) are placed in a predetermined area (15), positioning members (5) so fitted to the base member (1) that they are in contact with the outer surfaces of the glass members (10, 11) and they position the glass members (10, 11) in the predetermined area (15), and a pressing structure so installed on the base member (1) as to press the glass members (10, 11) against the major surface of the base member (1) and separate from the glass members (10, 11). The positioning members (5) are so fitted that a laser beam can be applied to all around the outer surfaces of the glass members (10, 11) without intercepting the laser beam by the positioning member (5).

Description

Specification

Glass member welding jig and glass welding system using the same

Technical field

The present invention relates to a glass member welding jig and a glass welding system using the same.

Background art

[0002] As a method of welding a plurality of glasses, a method of welding by heating the glass in a heating furnace, a method of bonding using a low melting point frit, or welding by applying a laser beam or the like to the periphery of the glass How to do is known. As a method of welding by applying a laser beam or the like, a plurality of glass members having a maximum devitrification speed of 100 m / min or less are prepared, and a laser beam is applied to the peripheral portions of these glass members to heat and weld them. A method is known (see, for example, Patent Document 1).

[0003] According to the method for producing a glass structure of Patent Document 1, it is possible to improve the weldability by preventing devitrification from occurring in the glass member before the glass member is softened and welded. Patent Document 1: JP 2000-344537

Disclosure of the invention

Problems to be solved by the invention

[0004] However, in the method of manufacturing a glass structure disclosed in Patent Document 1, a plurality of glass members are welded without using a positioning member. There is a possibility that these glass members may be misaligned before the welding, and there is still room for improvement.

[0005] The present invention has been made to solve the above-described problems. A glass member welding jig capable of positioning a glass member with a simple configuration and continuously performing glass welding efficiently. It aims at providing a glass welding system provided with it.

Means for solving the problem

[0006] In order to solve the above problems, a glass member welding jig according to the present invention is used to irradiate a plurality of glass members with laser light and weld the plurality of glass members at the irradiated portion. A main surface on which the plurality of glass members are placed in the predetermined region. A base member, a positioning member provided on the base member so as to contact the outer peripheral surface of the glass member and position the plurality of glass members in the predetermined region, and the plurality of glass members A pressing structure provided on the base member so that the glass member is pressed against the main surface of the base member and can be detached from the glass member, and the positioning member includes the positioning member. The laser beam is provided so that the laser beam can be irradiated to the entire outer circumference of the glass members without being blocked by the laser beam.

[0007] Thereby, the glass member can be positioned with a simple configuration, and the positioned glass member can be fixed.

[0008] In the glass member welding jig according to the present invention, the base member has a plate-shaped main body portion and a plate-shaped buffer portion, and the main surface of the base member is the main body portion. And a main surface of the buffer portion.

[0009] In the glass member welding jig according to the present invention, the pressing structure includes a pressing member for pressing the plurality of glass members against the main surface of the base member, and the pressing member of the base member. And a guide member that guides to move in a direction perpendicular to the main surface.

In the glass member welding jig according to the present invention, the pressing member is provided with a buffer member for protecting the plurality of glass members, and the pressing member is interposed through the buffer member. A plurality of glass members may be pressed against the main surface of the base member.

[0011] The glass member welding jig according to the present invention further includes a plate-shaped frame member, the guide member is formed in a columnar shape, and one or more around the predetermined region of the main surface of the base member. The upper guide member is provided so as to protrude perpendicularly to the main surface, and the pressing member is formed in a plate shape and has one or more fitting holes penetrating in the thickness direction. The upper fitting hole is slidably fitted into the guide member, and the distal end of the guide member is fixed by the frame member.

[0012] In the glass member welding jig according to the present invention, when the pressing member is in a posture such that the posture of the glass member welding jig is substantially horizontal with the main surface of the base member. The plurality of glass members are pressed against the main surface of the base member by its own weight. There may be.

[0013] In the glass member welding jig according to the present invention, a positioning recess is provided on the main surface of the base member, and the plurality of glass members are pressed against the main surface by the pressing structure. In the state, it may be provided so as to be detachable from the positioning recess.

[0014] In the glass member welding jig according to the present invention, the positioning member may be provided so as to protrude from the main surface of the base member and be retractable therefrom.

In the glass member welding jig according to the present invention, the positioning member may be made of a material that transmits the laser light.

[0016] In the glass member welding jig according to the present invention, a mounting portion for mounting on a rotation driving mechanism that rotationally drives the glass member welding jig may be provided below the base member. .

[0017] In addition, the glass welding system according to the present invention includes a conveyance path, and conveyance means for conveying the glass member welding jig on which the plurality of glass members are mounted on the conveyance path. A heating mechanism for heating the plurality of glass members mounted on the glass member welding jig and transported on the transport path, a laser light irradiator for irradiating the laser light, and A rotation drive mechanism that mounts a glass member welding jig on the mounted portion and lifts and rotates the glass member welding jig from the conveyance path, and the heating furnace is provided with an incident window, and the laser beam The irradiator is provided so that the laser beam can be irradiated to the irradiation part of the plurality of glass members placed on the rotating glass member welding jig through the incident window.

[0018] Thus, the glass member can be positioned with a simple configuration, and the glass can be efficiently and continuously welded with a force.

The invention's effect

[0019] According to the glass member welding jig and the glass welding system including the glass member welding jig of the present invention, the glass member can be positioned with a simple configuration, and the glass can be efficiently and continuously welded. .

Brief Description of Drawings FIG. 1 is a side view schematically showing a configuration of a glass member welding jig used in a glass welding system according to Embodiment 1 of the present invention.

FIG. 2 is a top view of the glass member welding jig shown in FIG.

FIG. 3 is a schematic diagram showing a schematic configuration of the glass welding system according to the first embodiment.

FIG. 4 is a top view of the glass welding system shown in FIG.

FIG. 5 is an enlarged schematic view of the main part of the transport mechanism in the glass welding system shown in FIG.

FIG. 6 is a schematic diagram showing a welding portion 53 of a heating furnace 50 in the glass welding system 100 shown in FIG.

FIG. 7 is a side view schematically showing Modification 1 of the glass member welding jig used in the glass welding system according to the first embodiment.

FIG. 8 is a side view schematically showing Modification Example 2 of the glass member welding jig used in the glass welding system according to the first embodiment.

FIG. 9 is a top view of the glass member welding jig shown in FIG.

Explanation of symbols

[0021] 1 Base member

la body

lb buffer

2 Frame member

3 Guide member

4 Pressing member

5 Positioning member

5a Positioning member

6 Positioning recess

7 Bearing member

8 Buffer member

10 Glass members Glass member Mounted part

Mounted recess Elastic member

Glass member placement area a Head

b Base

c Lid member

Glass member welding jig a Glass member welding jig b Glass member welding jig Heating furnace

Mounting part Preheating part

Weld

Slow cooling part

Extraction part Opening part (incident window) Frame member

Transport roller a Rotating shaft

b Roll part

c buttock

Transport mechanism

Transport path

Transport means

Laser beam irradiator Rotation drive mechanism 91 Drive unit

91 a cylinder

91b Piston rod

92 Thermal insulation

93 Rotation axis

94 Mounting part

95 Projection

100 glass welding system

200 control unit

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)

FIG. 1 is a side view schematically showing a configuration of a glass member welding jig used in the glass welding system according to Embodiment 1 of the present invention. FIG. 2 is a top view of the glass member welding jig shown in FIG. In FIG. 1, the vertical direction in the glass member welding jig is represented as the vertical direction in the figure.

[0023] First, a glass member welding jig used in the glass welding system according to the first embodiment will be described.

As shown in FIG. 1, the glass member welding jig 40 includes a base member 1, a frame member 2, and a guide member.

3, a pressing member 4, a positioning member 5, and a positioning recess 6.

[0025] The base member 1 has a plate-like main body la and a plate-like buffering part lb. The main surface of the buffer portion lb is formed so as to be smaller than the main surface of the main body portion la, the buffer portion lb is provided on the main surface of the main body portion la, and the base member 1 has a laminated structure. is doing. The main surface of the base member 1 is the upper main surface of the main body la (more precisely, the buffer portion lb of the main surface is provided! /, Na! /, A portion) and the upper surface of the buffer portion lb. Composed of the main faces of!

[0026] A plurality of laminated glass members 10 and 11 as works to be welded are placed on the main surface of the buffer portion lb. This work is here two pieces of rectangular glass. The workpiece is not limited to a sheet glass, and may be a laminated glass member whose outer periphery should be welded. Yes. Further, the planar shape is not limited to a rectangle, and the number of stacked layers may be two or more as long as the shape can irradiate laser light from the periphery to the outer peripheral surface. Here, the plurality of glass members 10 and 11 have the same shape as each other and are laminated so that the outer circumferences of the two coincide with each other when viewed from the lamination direction. However, the shape of each glass member is not limited to this. However, they may be laminated so that their outer circumferences do not coincide with each other when viewed from the lamination direction. An area 15 (predetermined area: hereinafter referred to as a glass member placement area) 15 on which a plurality of glass members 10 and 11 are to be placed is assumed on the main surface of the buffer portion lb.

[0027] In addition, cylindrical guide members 3 are arranged at four corners of the main surface of the main body la so as to protrude perpendicularly to the main surface (see FIG. 2). The main body la is made of heat-resistant ceramic or metal (for example, austenitic stainless steel, austenitic heat-resistant steel, titanium, etc.), and the buffering part lb covers the surface of the glass member 11 described later. It is made of ceramic or carbon so as not to damage it.

[0028] A plate-like frame member 2 is provided at the distal end of the guide member 3, whereby the guide members 3 are fixed to each other. Here, the guide member 3 is provided at the corners of the base member 1 and the frame member 2, but the guide member 3 is not limited to this, and the laser light applied to the outer peripheral surfaces of the glass members 10 and 11 is blocked. From the viewpoint of avoiding this, as long as the glass members 10 and 11 are provided around the glass member placement region 15 of the base member 1 on which the glass members 10 and 11 are placed, the installation location is not limited. In addition, the guide member 3 is not limited as long as the number of guide members 3 is 1 or more from the viewpoint of regulating the movement of the pressing member 4 described later. In addition, the frame member is not limited to a plate-shaped force here, and the shape of the frame member is limited if the distal ends of the guide members 3 that may be formed in a frame shape can be fixed to each other. Not.

The guide member 3 is provided with a plate-like pressing member 4 via a bearing member 7 so as to be slidable. The pressing member 4 is provided between the base member 1 and the frame member 2, and a through-hole penetrating in the thickness direction is provided at a corner portion of the pressing member 4. A bearing member 7 having heat resistance is fitted into the through hole. The bearing member 7 uses a linear motion guide such as a sliding bearing, and the guide member 3 is passed through the fitting hole of the bearing member 7. As a result, the pressing member 4 slides along the guide member 3 in a direction perpendicular to the main surface of the base member 1. The power S

In addition, a plate-like buffer member 8 is provided on the lower main surface of the pressing member 4. The buffer member 8 is made of ceramic or carbon so as not to damage the surface of the glass member 10. Thus, the pressing member 4 can press the laminated plate-like glass members 10 and 11 to the main surface of the base member 1 through the buffer member 8 by the weight of the pressing member 4 and the buffer member 8. The members 10 and 11 can be fixed.

Next, positioning of the glass members 10 and 11 will be described.

As shown in FIGS. 1 and 2, a plurality of positioning recesses 6 are provided on the main surface of the buffer portion lb so as to be in contact with the outer periphery of the glass member placement region 15. The position where the positioning recess 6 is installed is appropriately assumed in accordance with the size of the glass member to be placed, and the glass member placement region 15 is appropriately designed. Then, the cylindrical positioning member 5 is fitted in the positioning recess 6, and the outer peripheral surfaces of the glass members 10 and 11 are brought into contact with the peripheral surface of the positioning member 5, thereby positioning and fixing the glass members 10 and 11. The force of aligning the two glass members 10, 11 can be increased. Further, the positioning member 5 is removed from (removed from) the positioning recess 6 so that the outer peripheral surfaces of the glass members 10 and 11 are irradiated with laser light without being blocked by the positioning member 5 with a force S.

Note that the depth dimension of the positioning recess 6 and the height dimension of the positioning member 5 are as follows: when n glass parts are laminated, the main surface of the base member 1 (buffer part lb) and the main surface of the buffer member 8 Are in contact with the laminated glass members (here, glass members 10 and 11), and the projecting dimension from the main surface of the buffering portion lb of the positioning member 5 is the base member 1 ( The depth dimension of the positioning recess 6 is larger than the dimension between the main surface of the buffer portion (lb) and the upper end portion of the laminated n—one glass member, and the depth dimension of the positioning recess 6 It is appropriately designed so as to be smaller than the size of the gap formed between the portion and the lower main surface of the buffer member 8. The positioning member 5 may be made of a material that transmits laser light and has heat resistance. Examples of such a material include a member that transmits laser light (for example, zinc selenide (ZnSe), potassium chloride (KC1), and sodium chloride (NaCl) for a carbon dioxide laser with a wavelength of 10.6 111). Thus, the laser beam can be blocked by the positioning member 5 on the outer peripheral surfaces of the glass members 10 and 11 without removing the positioning member 5 from the positioning recess 6. It ’s the power to irradiate.

[0033] In addition, a short columnar attached portion 12 is provided on the lower main surface of the base member 1.

A mounting recess 13 is provided on the lower main surface of the mounted portion 12. Mounted recess

13 is fitted with a distal end portion of a rotation driver 90 to be described later, and the glass member welding jig 40 can be attached to the rotation driver 90.

Thereby, the glass member welding jig 40 of the first embodiment can easily position the glass members 10 and 11 and can fix the positioned glass members 10 and 11. it can.

[0035] Although the main surface of the buffer portion lb of the base member 1 and the main surface of the buffer member 8 are in contact with the glass members 10, 11, the present invention is not limited to this, and the buffer portion lb is not provided. In addition, the main surface of the main body la of the base member 1 and the main surface of the pressing member 4 may be in direct contact with the glass members 10 and 11.

Next, the glass welding system according to Embodiment 1 will be described with reference to FIGS. 3 and 4.

. FIG. 4 is a top view of the glass welding system shown in FIG. In Fig. 3 and Fig. 4, some parts are omitted.

As shown in FIG. 3, the glass welding system 100 according to the first embodiment includes a glass member welding jig 40, a heating furnace 50, a transport mechanism 70, a laser beam irradiator 80, a rotation drive mechanism 90, And a control device 200.

First, the transport mechanism 70 will be described.

The transport mechanism 70 has a transport path 71 and a transport means 72, and the transport path 71 is installed in the horizontal direction.

[0041] The conveyance path 71 has a heat resistance that can be configured by a known conveyor such as a belt conveyor or a roller conveyor, and from the viewpoint of conveying the glass member welding jig 40 in the heating furnace 50. Here, a roller conveyor as shown in Fig. 5 is used. Further, the transport means 72 is configured by a power source (for example, an electric motor) that can move the conveyor of the transport path 71. Here, the conveyance path 71 will be described with reference to FIG.

FIG. 5 is a schematic diagram in which the main part of the conveyance path 71 in the glass welding system 100 shown in FIGS. 3 and 4 is enlarged.

[0044] The transport path 71 has a pair of linear frame members 61 extending in parallel to each other and in the horizontal direction. A lid member 63 for closing the lower end portion of the conveyance path 71 is provided at the lower end of the frame member 61. Further, on the inner surfaces of the pair of frame members 61, a large number of conveying rollers 62 are rotatably disposed so as to face each other at a predetermined interval. The transport roller 62 is configured with a rotating shaft 62a and a roll portion 62b having a flange portion 62c. The rotation shaft 62a is connected to the transport means 72 via an appropriate rotation transmission mechanism (not shown). The rotating shaft 62a has a base end portion rotatably attached to the frame member 61, and a shaft portion 62b provided coaxially at the tip end portion. The outer peripheral surface of the roll part 62b contacts the lower main surface of the base member 1 in the glass member welding jig 40 to be transported. Then, by driving the conveying means 72, the conveying roller 62 rotates and the glass member welding jig 40 is conveyed. At this time, the glass member welding jig 40 is transported in the longitudinal direction of the fixed frame member 61 by the base member 1 being guided from both sides by the flange portions 62c of the pair of transport rollers 62. . Note that the individual transport rollers 62 are configured to be interlocked by appropriate means. Further, the transport mechanism 70 is controlled by the control device 200.

[0045] Next, the heating furnace 50 will be described.

As shown in FIGS. 3 and 4, the heating furnace 50 is disposed so as to cover substantially the entire part of the transport mechanism 70. The heating furnace 50 includes a preheating part 52, a welding part 53, and a slow cooling part 54. Further, the portions of the transport path 71 located on the front side and the rear side of the heating furnace 50 constitute an attachment part 51 and an extraction part 55, respectively.

[0047] The welded portion 52 of the heating furnace 50 is provided with an opening 56 penetrating in the thickness direction on the outer wall constituting the heating furnace 50 so as to be paired. An entrance window 56 is formed. From the viewpoint of irradiating and welding the outer peripheral surfaces of the glass members 10 and 11 with the laser beam, the entrance window 56 may be larger than the vertical, horizontal, and height dimensions of the glass members 10 and 11. It is formed so as to be larger than the glass member welding jig 40.

[0048] A heater (not shown) is provided inside the heating furnace 50, and the heater is electrically or A known heater using a gas as a heat source (for example, a sheath heater or a gas heater) is used. A control device 200 described later adjusts the heater so that the temperature in the heating furnace 50 is maintained at a predetermined temperature.

[0049] Next, the laser beam irradiator 80 will be described.

As shown in FIG. 4, the laser beam irradiator 80 is provided outside the welded portion 53 in the heating furnace 50 so as to correspond to the pair of incident windows 56. The laser beam irradiator 80 includes a processing head that can move in a three-dimensional direction relative to the heating furnace 50, a laser oscillator that generates laser light irradiated from the processing head, and the like (both not shown). ) The laser light irradiator 80 is configured to be movable in the horizontal direction. As a result, the laser beam irradiation direction is finely adjusted by the processing head, and the laser beam irradiation unit 80 moves in the horizontal direction, so that one of the end surfaces of the glass members 10 and 11 (here, rectangular glass) Laser light can be irradiated on the entire area of one of the four end faces of the members 10 and 11 facing each other. At this time, the laser light emitted from the laser light irradiator 80 may be substantially parallel light, and the diameter (spot diameter) at the irradiated part is the glass members 10 and 11 and the buffer part lb of the base member 1. As long as it is larger than the total thickness of the buffer member 8, either convergent light or defocused light may be used. The defocused light may be used either before or after the focal position of the convex lens, or may be used by spreading the laser light with a concave lens.

[0051] As shown in FIG. 3, the rotational drive mechanism 90 includes a welding portion 53 (more precisely, a conveyance path) of the heating furnace 50.

71), the glass member welding jig 40 that has reached the welding part 53 is lifted in the vertical direction and rotated.

Here, the rotation drive mechanism 90 will be described with reference to FIG.

FIG. 6 is a schematic diagram showing a welding portion 53 of the heating furnace 50 in the glass welding system 100 shown in FIG. 3. FIG. 6 (a) shows that the glass member welding jig 40 has reached the welding portion 53. FIG. 6B is a schematic diagram showing a state in which the glass member welding jig 40 is lifted by the rotation drive mechanism 90 and is rotated. In FIG. 6, the vertical direction in the glass welding system 100 is represented as the vertical direction in the figure, and a part of it is omitted in FIG.

As shown in FIG. 6, the rotation drive mechanism 90 includes a drive unit 91, a heat insulating unit 92, a rotary shaft 93, and a device. A landing portion 94.

The drive unit 91 has a cylinder 91a and its piston rod 91b, and the piston rod 91b is configured to be movable in the vertical direction by the cylinder 91a. A heat insulating part 92 is provided at the tip of the piston rod 91b. As a result, the heat transferred from the furnace 50 through the rotating shaft 93 can be blocked by the heat insulating portion 92 and the drive portion 91 can be prevented from being heated.

The heat insulating portion 92 is provided with a cylindrical rotary shaft 93, and the rotary shaft 93 is configured to pass through a through hole provided in the lid member 63 of the transport path 71. A rotating mechanism (not shown) (for example, a motor attached to the piston rod 91b) is connected to the rotating shaft 93, and the rotating shaft 93 is rotated by the rotating mechanism. In addition, a disc-shaped mounting portion 94 is provided at the tip of the rotating shaft 93. A protrusion 95 protruding in the thickness direction is provided on the upper main surface of the mounting portion 94. As shown in FIG. 6 (a), the protrusion 95 is retracted so that it does not come into contact with the mounted part 12 of the glass member welding jig 40 when the glass part welding jig 40 reaches the welding part 53. It is configured to (down). Then, as shown in FIG. 6 (b), when the projecting portion 95 is raised by the drive portion 91, it is fitted into the mounting recess 13 of the mounting portion 12 of the glass member welding jig 40 and welded to the glass member. The jig 40 and the rotational drive mechanism 90 are connected. As a result, the glass member welding jig 40 can be moved in the vertical direction by the rotation drive mechanism 90 and rotated.

[0057] Note that the force assuming that the drive unit 91 is configured by a cylinder is not limited to this. For example, the glass member welding jig 40 is moved in the vertical direction by using a ball screw, a roller screw crank mechanism, or the like. May be.

[0058] The control device 200 is configured by a computer such as a microcomputer, and includes an arithmetic processing unit including a CPU, a storage unit including a memory, a display unit such as a monitor, a clock unit having a calendar function, a keyboard, and the like. Have an operation input section (not shown). The arithmetic processing unit reads out a predetermined control program stored in the storage unit and executes it to perform various controls relating to the glass welding system 100. The arithmetic processing unit processes data stored in the storage unit and data input from the operation input unit.

Next, the operation of the glass welding system 100 according to the first embodiment and the glass welding process. This is described with reference to FIGS. 3, 4, and 6. FIG.

The operation of the glass welding system 100 is controlled by the controller 200. As shown in FIGS. 3 and 4, the glass welding process is composed of an attachment process, a preheating process, a welding process, a slow cooling process, and a removal process.

First, the control device 200 issues a heating start command to the heating furnace 50, and controls a heater (not shown) so that the preheating part 52 in the heating furnace 50 has a predetermined temperature. Further, the transport mechanism 70 is intermittently operated with a predetermined tact time. Therefore, as will be described later, the glass member welding jig 40 placed at predetermined intervals on the conveyance path 71 is conveyed on the conveyance path 71 if it is repeatedly stopped and moved at a predetermined tact time. . The predetermined interval at which the glass member welding jig 40 is placed on the conveyance path 71 is such that the glass member is welded to the attachment position 51, the preheating portion 52, the welding portion 53, the slow cooling portion 54, and the takeout portion 55. The interval is such that each jig 40 stops.

[0062] As an attaching step, an operator places the glass member welding jig 40 on the conveyance path 71 of the attaching portion 51. Next, the pressing member 4 of the glass member welding jig 40 is pushed upward, and the positioning member 5 is fitted into the positioning recess 6. Then, by bringing the outer peripheral surface of the glass members 10 and 11 and the peripheral surface of the positioning member 5 into contact with each other, the positioning of the glass members 10 and 11 and the mutual alignment of the two glass members 10 and 11 are performed. Then, the glass members 10 and 11 are placed on the main surface of the base member 1. Next, the pressing member 4 is pushed downward to bring the main surface of the buffer member 8 into contact with the main surface of the glass member 10. At this time, the pressing member 4 presses the glass members 10 and 11 against the main surface of the base member 1 via the buffer member 8 by the weight of the pressing member 4 and the buffer member 8. Thus, the glass members 10 and 11 are sandwiched and fixed between the buffer member 8 and the base member 1. Then, the positioning member 5 is detached from the positioning recess 6. Thereafter, the mounting of the glass members 10 and 11 on the glass member welding jig 40 and the placement of the glass welding jig 40 mounting the glass members 10 and 11 on the conveyance path 71 are accompanied by the tact time described above. And is performed sequentially.

[0063] As the preheating step, the glass member welding jig 40 is conveyed into the heating furnace 50 and heated in the preheating section 52 at a predetermined temperature for a predetermined time. Here, the predetermined temperature is different depending on, for example, the type of the force glass member between 51 and! The predetermined time is a force that varies depending on the size of the glass member, for example, 5 minutes. As the welding process, the glass members 10 and 11 (more precisely, the glass members 10 and 11 loaded on the glass member welding jig 40) preheated by the preheating unit 52 are conveyed to the welding unit 53. Then, the control device 200 issues an operation start command to the rotation drive mechanism 90 and the laser beam irradiator 80. In response to this, the drive unit 91 of the rotation drive mechanism 90 is driven, and the mounting unit 94 moves upward. Along with this movement, the projection 95 of the mounting portion 94 fits into the mounting recess 13, and the rotation driving mechanism 90 and the glass member welding jig 40 are connected. Then, the drive unit 91 further moves the mounting unit 94 upward, so that the glass member welding jig 40 is lifted in the vertical direction (see FIG. 6). Then, when the glass member welding jig 40 is lifted to a predetermined position (a position parallel to the incident window), the laser beam irradiator 80 reaches from the one end of the end face of the glass members 10 and 11 to the other end. As shown, the glass members 10 and 11 are welded by irradiating with laser light. As a result, the pair of opposite end surfaces of the glass members 10 and 11 are welded. Next, the rotation drive mechanism 90 rotates the rotation shaft 93 by 90 degrees by a rotation mechanism (not shown). Then, the laser beam irradiator 80 irradiates the laser beam again from one end to the other end of the glass members 10 and 11 to weld the glass members 10 and 11. Thereby, all the end surfaces (end surfaces covering the entire outer periphery) of the glass members 10 and 11 are welded. Then, the rotary drive mechanism 90 further rotates the rotary shaft 93 by 90 degrees, and the mounting portion 94 is lowered to the initial position by the drive portion 91, and the glass member welding jig 40 is transferred to the transfer mechanism 70 (to be precise, the transfer Return to the state of contact with the conveying roller 62 in the path 7 1).

[0065] As the slow cooling step, the glass member welding jig 40 is conveyed to the slow cooling portion 54 and gradually cooled. The slow cooling here is a force S that varies depending on the type and size of the glass member, for example, slowly cools at 550 ° C for 15 minutes, removes the distortion, and then takes about 30 minutes to reach room temperature. Slowly cool.

[0066] As the take-out step, the glass member welding jig 40 that has been slowly cooled by the slow cooling unit 54 is conveyed to the take-out unit 55, and the operator takes out the glass members 10 and 11 that have been welded. Next, the glass member welding jig 40 is taken out from the conveyance path 71.

[0067] Thus, the glass member can be positioned with the simple configuration according to the first embodiment, and the glass can be efficiently and continuously welded. [0068] In the present embodiment, the laser beam irradiator is configured to be movable in the horizontal direction. However, the present invention is not limited to this, and the rotation drive mechanism moves in the horizontal direction, so that the entire end surface of the glass member can be moved. May be configured to be irradiated with laser light. In addition, although two laser beam irradiators are provided, the present invention is not limited to this. One laser beam irradiator may be provided, or a plurality of laser beam irradiators may be provided.

[0069] Next, a glass member welding jig used in the glass welding system 100 according to the first embodiment.

Forty variations will be described.

[0070] [Variation 1]

FIG. 7 is a side view schematically showing a modification of the glass member welding jig 40 used in the glass welding system 100 according to the first embodiment. In FIG. 7, the vertical direction in the glass member welding jig is represented as the vertical direction in the figure. In the following description, the same or corresponding parts as those in FIG.

As shown in FIG. 7, the glass member welding jig 40a of Modification 1 is configured such that the positioning member 5a can be accommodated in the positioning recess 6. The positioning member 5a has a cylindrical head portion 25a and a columnar base portion 25b that can be accommodated in the head portion 25a, and the base end portion of the base portion 25b is fixed to the bottom surface of the positioning recess 6. . The outer peripheral surface of the base 25b is in contact with the inner peripheral surface of the head 25a so as to slide with a certain amount of frictional force, so that the head 25a contacts the main surface of the base member 1 along the base 25b. The position can be maintained when sliding in the vertical direction and no external force is applied. The upper end of the head 25a is closed by a lid member 25c, and a handle (not shown) is provided on the upper end surface of the lid member 25c. Here, the upper end surface of the lid member 25c is configured to be flush with the upper main surface of the buffer portion lb of the base member 1 when the head portion 25a is pushed down. Further, a handle (not shown) is provided so as to be flush with the upper end surface of the lid member 25c when not in use.

[0072] Then, the head 25a of the positioning member 5a configured as described above is pulled upward and protruded from the upper main surface of the buffer portion lb, and the outer peripheral surface of the glass members 10 and 11 and the head 25a The glass members 10 and 11 can be easily positioned by bringing them into contact with the outer peripheral surface. Also, the head 25a of the positioning member 5a that protrudes from the main surface of the buffer lb is pushed from there. By lowering and retracting to the positioning recess 6, the laser beam can be irradiated to the outer peripheral surfaces of the glass members 10 and 11 without being blocked by the positioning member 5 a.

[Modification 2]

FIG. 8 is a side view schematically showing a modification of the glass member welding jig 40 used in the glass welding system 100 according to the first embodiment. FIG. 9 is a top view of the glass member welding jig shown in FIG. In FIG. 8, the vertical direction in the glass member welding jig is represented as the vertical direction in the figure.

As shown in FIGS. 8 and 9, in the glass member welding jig 40b of Modification 2, the elastic member 14 is interposed between the frame member 2 and the pressing member 4. The elastic member 14 biases the pressing member 4 downward (in the thickness direction of the pressing member 4), and presses the main surface of the glass member 10 more uniformly with the pressing member 4 via the buffer member 8. In addition, the glass members 10 and 11 can be more firmly fixed. Here, the elastic member 14 uses a compression spring having heat resistance. However, the elastic member 14 is not limited to this, and for example, a plate spring having heat resistance may be used. Further, as shown in FIG. 8, the elastic member 14 is interposed between the frame member 2 and the pressing member 4, but the elastic member 14 is not limited to this, and the main surface of the buffer member 8 is the glass member 10. As long as it is possible to press the main surface evenly, the installation location and the number of installations are not limited. For example, a tension spring may be provided between the pressing member 4 and the base member 1.

[0075] From the above description, many modifications and other embodiments of the present invention are apparent to persons skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the spirit of the invention.

Industrial applicability

[0076] According to the glass member welding jig and the glass welding system including the glass member welding jig of the present invention, the glass member can be positioned with a simple configuration, and the glass can be efficiently and continuously welded. It is useful as a jig and a glass welding system including the jig.

Claims

The scope of the claims

[1] A jig used for irradiating a plurality of glass members with laser light and welding the plurality of glass members at the irradiated portion,

A base member having a main surface on which the plurality of glass members are placed in the predetermined region; and a plurality of glass members positioned in the predetermined region in contact with an outer peripheral surface of the glass member. A positioning member provided on the base member and the base member so that the plurality of glass members are pressed against the main surface of the base member and can be detached from the glass member. A pressing structure, and the positioning member can irradiate the laser light over the entire circumference of the plurality of glass members without being blocked by the positioning member. A glass member welding jig provided.

[2] The base member has a plate-shaped main body portion and a plate-shaped buffer portion provided on the main surface of the main body portion.

2. The glass member welding jig according to claim 1, wherein a main surface of the base member is constituted by a main surface of the main body portion and a main surface of the buffer portion.

[3] The pressing structure guides the pressing member to press the plurality of glass members against the main surface of the base member and the pressing member to move in a direction perpendicular to the main surface of the base member. A glass member welding jig according to claim 1, comprising a guide member.

[4] The pressing member is provided with a buffer member for protecting the plurality of glass members,

The glass member welding jig according to claim 3, wherein the pressing member presses the plurality of glass members against a main surface of the base member via the buffer member.

[5] It further comprises a plate-like frame member,

The guide member is formed in a columnar shape, and one or more guide members are provided around the predetermined region of the main surface of the base member so as to protrude perpendicularly to the main surface, and the pressing member is plate-shaped And has one or more fitting holes penetrating in the thickness direction thereof, and is slidably fitted into the guide member in the one or more fitting holes, The glass member welding jig according to claim 3, wherein a distal end portion of the guide member is fixed by the frame member.

[6] When the posture of the glass member welding jig is such that the main surface of the base member is substantially horizontal, the pressing member holds the plurality of glass members by its own weight. The glass member welding jig according to claim 3, wherein the glass member welding jig is pressed against the main surface of the base member.

[7] A positioning recess is provided on the main surface of the base member,

2. The glass member welding treatment according to claim 1, wherein the positioning member is provided so as to be detachable from the positioning recess in a state where the plurality of glass members are pressed against the main surface by the pressing structure. Ingredients.

8. The glass member welding jig according to claim 1, wherein the positioning member is provided so as to protrude from the main surface of the base member and be retractable therefrom.

9. The glass member welding jig according to claim 1, wherein the positioning member is made of a material that transmits the laser light.

10. The glass member welding jig according to claim 1, wherein a mounting portion for mounting the glass member welding jig on a rotational drive mechanism that rotationally drives the glass member welding jig is provided below the base member.

[11] A transport mechanism comprising: a transport path; and transport means for transporting the glass member welding jig according to claim 10, wherein the plurality of glass members are mounted on the transport path;

A heating furnace that heats the plurality of glass members that are mounted and transported on the glass member welding jig on the transport path;

A laser beam irradiator for irradiating the laser beam;

A rotation drive mechanism that attaches the glass member welding jig to the attachment portion and lifts the glass member welding jig from the conveyance path and rotates the same.

The heating furnace is provided with an incident window,

The laser beam irradiator is provided so that the laser beam can be irradiated to the irradiation part of the plurality of glass members mounted on the rotating glass member welding jig through the incident window. Glass member welding system.