KR100631481B1 - transfer device - Google Patents

Abstract

It is an object of the present invention to provide a conveying apparatus for conveying a lower mold capable of producing a large amount of three-dimensional curved glass as well as spherical curved glass.

The transfer apparatus according to the present invention for achieving the above object, the transfer motor is installed on the fixing rod protruded to the outside on one side of the support frame; A first drive sprocket fixed to the motor shaft of the transfer motor; A rotating shaft rotatably installed at both ends of the support frame via a bearing; A driven sprocket fixedly installed on the rotating shaft; A transmission member connected to the first drive sprocket and the driven sprocket for transmitting the rotational force of the motor shaft of the transfer motor to rotate the rotation shaft; A second drive sprocket installed on the rotation shaft corresponding to a predetermined height downward from the driven sprocket and being rotated together with the rotation shaft; A third drive sprocket rotatably installed on the support means at a position spaced apart from the second drive sprocket by a predetermined distance; A drive chain installed between the first and second drive sprockets to rotate in an endless track; It receives a rotational driving force of the drive chain and is provided with a support shaft on the lower and includes a linear movement means for transporting the lower mold loaded with glass on the upper surface,

The linear movement means, the cylindrical body which is rotatably installed on the lower portion of the support shaft via a bearing; A first bracket protruding perpendicularly to the support shaft on an outer surface of the cylindrical body; A first guide angle fixed to the lower surface of the ceiling of the support frame; A first horizontal roller rotatably installed on an upper end surface of the first bracket and in rolling contact with an outer surface of the first guide angle; A second bracket extending downwardly by a predetermined length on a lower surface of the end of the first bracket; A vertical roller rotatably installed on an outer surface of the second bracket; A second guide angle installed at an outer surface of a vertical wall vertically installed in the support frame to guide the vertical roller; A mounting angle fixed to the bottom of the second bracket; A second horizontal roller rotatably installed at one end of the mounting angle; A third guide angle installed at a lower outer surface of the vertical wall of the support frame to guide the second horizontal roller; It is installed on the other end of the mounting angle is characterized in that consisting of a driven chain meshed with the drive chain.

Glass, curved

Description

Transfer device

1 is a conceptual diagram schematically showing a curved system of glass according to the present invention;

Figure 2 is a process proceeding the curved surface of the glass according to the present invention.

3 is a plan view of a curved system of glass according to the present invention;

Figure 4 is a view showing the temperature distribution of the heating means and annealing means according to the present invention.

5 is a side view of a curved system of glass according to the present invention;

Figure 6 is a cross-sectional view showing the configuration and heating means of the track feed means of the system according to the present invention.

7 is a view showing a detailed configuration of the tracked transport means according to the present invention.

Figure 7a is a view showing that the auxiliary vertical roller is installed on the support shaft of the crawler feed means according to the present invention.

8 is a plan view of a crawler transport means according to the present invention.

9 is a side view of the caterpillar transport means according to the present invention.

10 is a cross-sectional view showing a state in which the lower mold of the present invention has entered into the annealing means.

11 is a cross-sectional view showing the configuration of a press means according to the present invention.

12 is a view showing the configuration of the angle conversion means of the press means of the present invention.

Fig. 13 is a schematic perspective view showing a state in which a forming block is installed between a heating means and an annealing means in the configuration of a press means of the present invention.

14 is a side view of a press means according to the present invention.

15 is a plan view of the rotation / release means according to the present invention.

Figure 16 is a side view of a rotating / releasing means according to the present invention.

FIG. 17 is a view showing a coupling relationship between a rotating shaft of the present invention and a supporting shaft of a lower mold; FIG.

18 is a view showing a coupling relationship between a deflection prevention cylinder and a cylinder in the rotation / release means according to the present invention.

Fig. 19 is a plan view showing the configuration of the in-position setting means of the present invention.

20 is a view showing the configuration of a vacuum suction means according to the present invention.

21 is a view showing a cross-sectional view of the spherical curved glass and three-dimensional curved glass completed by the present invention and the process of cutting the three-dimensional curved glass.

22 is a cross-sectional view of a flat glass according to the prior art.

23 is a cross-sectional view of spherical curved glass according to the prior art.

24 is a cross-sectional view of a three-dimensional curved glass according to the prior art.

<Description of the symbols for the main parts of the drawings>

100: lower mold

101: curved portion

102: support shaft

150: support frame

200: caterpillar transfer means

300: plate glass loading means

400: heating means

500: heating means

600: curved glass unloading means

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass curved system, and to a conveying apparatus for transporting a lower mold capable of producing a large amount of not only spherical curved glass but also three-dimensional curved glass.

In general, the side mirrors used by the driver to monitor the rear of the vehicle are installed at the front left and right sides of the vehicle.

Such types of side mirrors include a planar type (see FIG. 22), a spherical curved type having the same curvature as a whole (see FIG. 23), and a three-dimensional curved type having one side having a larger curvature than the other (FIG. 23). Curved mirrors make things look closer than they actually are compared to flat mirrors, and the driver can see a wider rear area, reducing blind spots.

Among these types of side mirrors, a method of manufacturing spherical curved and three-dimensional curved mirrors is to cut flat glass into the same size as the final product of the side mirror, and then insert the cut flat glass into an electric heating furnace and heat it. And, it is taken out and molded into curved glass using a mold apparatus, and then made of a process of manufacturing by depositing aluminum or the like on one surface of the curved glass.

However, in the prior art, the flat glass is cut into the same size as the side mirror, manually put into the electric heating furnace one by one, and then taken out again, and then molded into a curved glass using a mold apparatus. There was an inconvenience to transport the glass.

The present invention was created to solve the above problems, and an object of the present invention is to provide a conveying apparatus for transporting the lower mold loaded with glass very simply to produce not only spherical curved glass but also three-dimensional curved glass in large quantities. .

The transfer device of the present invention for achieving the above object, the transfer motor is installed on the fixing rod protruded to the outside on one side of the support frame; A first drive sprocket fixed to the motor shaft of the transfer motor; A rotating shaft rotatably installed at both ends of the support frame via a bearing; A driven sprocket fixedly installed on the rotating shaft; A transmission member connected to the first drive sprocket and the driven sprocket for transmitting the rotational force of the motor shaft of the transfer motor to rotate the rotation shaft; A second drive sprocket installed on the rotation shaft corresponding to a predetermined height downward from the driven sprocket and being rotated together with the rotation shaft; A third drive sprocket rotatably installed on the support means at a position spaced apart from the second drive sprocket by a predetermined distance; A drive chain installed between the first and second drive sprockets to rotate in an endless track; It includes a linear movement means for receiving the rotational driving force of the drive chain is provided with a support shaft in the lower portion and conveying the lower mold loaded with glass on the upper surface, the linear movement means, through the bearing on the lower portion of the support shaft A cylindrical body rotatably installed therein; A first bracket protruding perpendicularly to the support shaft on an outer surface of the cylindrical body; A first guide angle fixed to the lower surface of the ceiling of the support frame; A first horizontal roller rotatably installed on an upper end surface of the first bracket and in rolling contact with an outer surface of the first guide angle; A second bracket extending downwardly by a predetermined length on a lower surface of the end of the first bracket; A vertical roller rotatably installed on an outer surface of the second bracket; A second guide angle installed at an outer surface of a vertical wall vertically installed in the support frame to guide the vertical roller; A mounting angle fixed to the bottom of the second bracket; A second horizontal roller rotatably installed at one end of the mounting angle; A third guide angle installed at a lower outer surface of the vertical wall of the support frame to guide the second horizontal roller; It is installed on the other end of the mounting angle is characterized in that consisting of a driven chain meshed with the drive chain.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the transfer apparatus according to the present invention will be described in detail as follows.

First, before describing the transfer apparatus of the present invention will be described with respect to the curved system of the glass to which the present invention is applied.

And, it will be mentioned at the beginning that the transfer device of the present invention transfers the lower mold in a caterpillar manner.

1 is a conceptual diagram schematically showing a curved system of glass according to the present invention, FIG. 2 is a process diagram of curved glass according to the present invention, and FIG. 3 is a plan view of a curved system of glass according to the present invention. Figure 4 is a view showing the temperature distribution of the heating means and the annealing means according to the present invention, Figure 5 is a side view of the curved system of glass according to the present invention, Figure 6 is an endless track transport in the system according to the present invention Figure 7 is a cross-sectional view showing the configuration of the means and the heating means, Figure 7 is a view showing a detailed configuration of the caterpillar transport means according to the invention, Figure 7a is a secondary vertical roller of the configuration of the caterpillar transport means according to the present invention 8 is a plan view of the caterpillar feed means according to the present invention, FIG. 9 is a side view of the caterpillar feed means according to the present invention, and FIG. Fig. 11 is a sectional view showing a state in which the lower mold is entered into the annealing means, and Fig. 11 is a sectional view showing the configuration of the press means according to the present invention, and Fig. 12 is a configuration of the angle converting means of the press means of the present invention. 13 is a schematic perspective view showing a state in which a forming block is installed between a heating means and an annealing means in the construction of the press means of the present invention, and FIG. 14 is a side view of the press means according to the present invention. 15 is a plan view of the rotating / releasing means according to the present invention, Figure 16 is a side view of the rotating / releasing means according to the present invention, Figure 17 is a coupling relationship between the support shaft of the rotating / releasing means and the lower mold of the present invention. 18 is a view showing the coupling relationship between the deflection prevention cylinder and the cylinder in the rotation / release means according to the present invention, Figure 19 is a plan view showing the configuration of the position setting means of the present invention 20 is a view showing the configuration of the vacuum suction means according to the present invention, Figure 21 is a cross-sectional view of the spherical curved glass and the three-dimensional curved glass completed by the present invention and the process of cutting the three-dimensional curved glass FIG. 22 is a cross-sectional view of a flat glass according to the prior art, FIG. 23 is a cross-sectional view of a spherical curved glass according to the prior art, and FIG. 24 is a cross-sectional view of a three-dimensional curved glass according to the prior art.

The present invention, the lower mold 100, the support frame 150, the heating means 400, the track feed means 200, the plate glass loading means 300, the upper mold 500, the press Means 550 and curved glass unloading means 600.

The lower mold 100 has a curved portion 101 formed concave on an upper surface thereof, and a support shaft 102 having a predetermined length is installed at a lower center thereof.

As shown in FIGS. 3, 4, 5 and 6, the support frame 150 is spaced apart from the ground by a predetermined height and has a track shape.

The heating means 400, which is installed over a predetermined section in the longitudinal direction on the support frame 150, and has a tunnel portion 403 of a constant length in which the inlet 401 and the outlet 402 are formed.

At the temporary end 400, a guide path 404 communicating with the outside at the bottom of the tunnel portion 403 to allow the support shaft 102 of the lower mold 100 to pass through the entire tunnel portion 403. Formed in the longitudinal direction.

High temperature heat is applied to the tunnel portion 403 by a separate heat source (for example, a heater) 405.

The caterpillar transport means 200 is to be installed throughout the support frame 150, the support shaft 102 of the lower mold 100 is provided at regular intervals.

The caterpillar conveying means 200 transfers the lower mold 100 to the tunnel portion 403 and the support shaft 102 to the guide path 404 as much as an installation interval of the lower mold 100. The lower mold 100 is operated to repeat the process of transferring and then stopping.

In addition, the caterpillar transport means 200 is provided with the lower mold 100 at regular intervals.

Detailed configuration of the caterpillar transfer means 200 to serve as described above will be described.

The caterpillar conveying means 200, the conveying motor 210, the first drive sprocket 212, the rotating shaft 220, the driven sprocket 222, the transmission member 223, the second The drive sprocket 224, the third drive sprocket 225, the drive chain 226, and the linear movement means 230 are included.

The transfer motor 210 is installed on a fixing stand 201 installed to protrude outward from one side of the support frame 150.

The first drive sprocket 212 is fixedly installed on the motor shaft 211 of the transfer motor 210.

The rotary shaft 220 is rotatably installed at both ends or the upper and lower ends of the support frame 150 via the bearing 221.

The driven sprocket 222 is fixedly installed on the rotation shaft 220.

The transmission member 223 is connected to the first drive sprocket 212 and the driven sprocket 222 to transfer the rotational force of the motor shaft 211 of the transport motor 210 so that the rotation shaft 220 is rotated. It plays a role.

Here, of course, the transfer member 223 may be a chain or a belt.

The second driving sprocket 224 is installed on the rotating shaft 220 corresponding to a predetermined height downward from the driven sprocket 222 and rotates together with the rotating shaft 220.

As shown in FIG. 8, the third drive sprocket 225 is rotatably installed on the support means 227 at a position spaced apart from the second drive sprocket 224 by a predetermined distance.

The drive chain 226 is installed between the first and second drive sprockets 224 and 225 to be rotated in an endless track.

The linear movement means 230 receives the rotational driving force of the drive chain 226 to allow the support shaft 102 to linearly move into the guide path 404 of the tunnel portion 403 to the lower mold 100. It serves to pass through the tunnel portion 403 of the heating means 400.

In the above-described configuration, the linear movement means 230 includes a cylindrical body 231, a first bracket 232, a first guide angle 232a, a first horizontal roller 233, and a second bracket 234. ), The vertical roller 235, the second guide angle 236, the mounting angle 237, the second horizontal roller 238, the third guide angle 239, the driven chain 240 consist of.

The cylindrical body 231 is rotatably installed at a lower end portion of the lower mold support shaft 102 via a bearing 231a.

The first bracket 232 protrudes perpendicularly to the support shaft 102 on the outer surface of the cylindrical body 231.

The first guide angle 232a is fixedly installed on the bottom surface of the ceiling portion 151 of the support frame 150.

The first horizontal roller 233 is rotatably installed on the upper end surface of the first bracket 232 and is in contact with the outer surface of the first guide angle 232a.

The second bracket 234 extends a predetermined length downward on the bottom surface of the end of the first bracket 232.

The vertical roller 235 is rotatably installed on the outer surface of the second bracket 234.

The second guide angle 236 is installed on the outer surface of the vertical wall 152 installed vertically in the support frame 150 to guide the vertical roller 235.

The mounting angle 237 is fixedly installed at the lower end of the second bracket 234.

The second horizontal roller 238 is rotatably installed at one end of the mounting angle 237.

The third guide angle 239 is installed on the lower outer surface of the vertical wall 152 of the support frame 150 to guide the second horizontal roller 238.

The driven chain 240 is installed at the other end of the mounting angle 237 to be engaged with the drive chain 226.

On the other hand, the second bracket 234 is provided with a lever member 234a having a predetermined length rotatably connected to the center portion, and the auxiliary vertical rollers 235a and 235b rotate at both ends of the lever member 234a, respectively. The auxiliary vertical rollers 235a and 235b may be installed to be guided by the second guide angle 236.

Here, the reason why the lever member 234a and the auxiliary vertical rollers 235a and 235b is installed is that the second guide angle 236 provided with the corner portion of the support frame 150 in which the linear movement means has a track shape. Follows the role of preventing overturning.

On the other hand, in the above-described configuration, the support means 227 is composed of a fixing frame 227b, a rotating shaft 227a, and a cylinder 227e.

The fixing frame 227b is installed to be movable in a linear direction by the guide rail 227c with respect to the ground.

The rotation shaft 227a is rotatably installed vertically inside the fixing frame 227b and the third drive sprocket 225 is fixed to an outer surface thereof.

In the cylinder 227e, a rod 227d is fixedly installed on an outer surface of the fixing frame 227b to move the fixing frame 227b in the front-rear direction so that the distance between the second and third driving sprockets 224 and 225 is increased. By adjusting the serves to adjust the tension or tension of the drive chain 226.

 Referring to the operation of the caterpillar transfer means configured as described above are as follows.

First, as shown in FIG. 7, when power is supplied and driven to the transport motor 210, the motor shaft 211 of the transport motor 210 is rotated.

When the motor shaft 211 of the transfer motor 210 is rotated, the first drive sprocket 212 installed on the motor shaft 211 is rotated, thereby causing the chain, which is an example of the transmission member 223, to be mediated. The driven sprocket 222 fixed to the rotating shaft 220 is rotated.

When the driven sprocket 222 is rotated, the rotating shaft 220 is also rotated so that the second drive sprocket 224 is rotated.

When the second drive sprocket 224 is rotated, as shown in FIG. 8, the third drive sprocket 225 is rotated by the drive chain 226.

As described above, when the second and third driving sprockets 224 and 225 are rotated, the driving chain 226 is engaged with the driven chain 240 while making an endless track, and eventually the driven chain 240 is linearly directed. It will be moved.

This will be described in more detail with reference to FIG. 7 as follows.

The process of the driven chain 240 is moved in a linear direction by the drive chain 226 as follows.

Since the driven chain 240 is fixedly installed at the other end of the mounting angle 237, the second horizontal roller 238 rotatably installed at one end of the mounting angle 237 is provided at the third guide angle 239. In contact with it, it is moved while rotating.

Thereafter, the vertical roller 235 rotatably installed at the mounting angle 237 and the second bracket 234 fixed to the mounting angle 237 is rotated by being guided while being in contact with the second guide angle 236. do.

Next, the first horizontal roller 233 rotatably installed on the first bracket 232 is moved while being rotated under the guidance of the first horizontal roller 233 in contact with the first guide angle 232a.

As a result, the cylindrical body 231 fixed to the first bracket 232 also moves in a linear direction as the first horizontal roller 233 rotates and moves under the guidance of the first guide angle 232a. Done.

As the cylindrical body 23 moves in a linear direction, the support shaft 102 of the lower mold 100 is guided in the tunnel portion 403 constituting the heating means 400, as shown in FIG. 404).

Thus, as the support shaft 102 moves along the guide path 404, the lower mold 100 moves into the tunnel portion 404 of the heating means 400.

As described above, since the components constituting the linear movement means 230 according to the present invention are installed in a track shape along the support frame 150 formed in a substantially track shape, the lower mold installed at regular intervals ( 100) can be continuously transported in an orbital manner.

That is, by repeating driving and stopping of the transport motor 210, the process of transferring the lower mold 100 and then stopping by the installation interval of the lower mold 100 may be repeated.

Here, the reason for repeating the process of transferring the lower mold 100-> stop-> transport-> stop, etc. is to adjust the time that the upper mold 500 to be described later may be pressed.

That is, when the lower mold 500 is stopped, the upper mold 500 is lowered and pressed.

So far, the caterpillar transfer means 200 has been described.

On the other hand, the flat glass loading means 300 according to the present invention is installed adjacent to the inlet 401 of the heating means 400 of the lower mold 100 to be conveyed by the crawler transport means 200 It serves to load the flat glass 110 into the curved portion (101).

The detailed configuration of the flat glass loading means 300, the vacuum pickup / pickup to pick up the material supply conveyor 310 and the flat glass 110 placed on the material supply conveyor 310 to be moved by vacuum Lifting and lowering the vacuum pickup / pick-up release means 320 to a position capable of picking up the means 320 and the flat glass 110 placed on the conveyor 310 and the tracked feed means 200. The linear movement robot 330 for linearly moving to the position of the curved portion 101 of the lower mold 100 to be transported by the conveyor, the material supply conveyor 310 and the vacuum pickup / pickup release means 320 and the linear movement Control means (not shown) for controlling the robot 330.

Referring to the operation relationship of the plate glass loading means 300 in more detail as follows.

The flat glass 110 placed and moved on the conveyor 310 for material supply is picked up by vacuum by the vacuum pick-up / release release means 320, and then the caterpillar feed means 200 by the linear mobile robot 330. The vacuum pickup / pickup release means 320 is moved to the position of.

Thereafter, the vacuum pickup / pickup release means 320 is lowered by the linearly moving robot 330 to the upper surface of the curved portion 101 of the lower mold 100 being transferred by the crawler conveyance means 200.

Next, the flat glass 110 picked up by the vacuum by the vacuum pickup / pick-up release means 320 is released into a vacuum and is loaded onto the curved portion 101 of the lower mold 100.

Finally, the vacuum pickup / pickup release means 320 is operated by the linearly moving robot 330 in the reverse direction of the flat glass loading to return to the position of the initial material supply conveyor 310.

By repeating the above process, one by one can be sequentially loaded on the empty curved portion 101 of the lower mold 100 transferred by the caterpillar transport means 200.

Here, the feed rate of the crawler feed means 200 and the operating time of the flat glass loading means 300 to precisely control the curved portion 101 of the lower mold 100 conveyed by the crawler feed means 200 It will be loaded one by one.

In other words, when the plate glass 110 is loaded by the plate glass loading means 300, the plate glass loading means 300 when the feed motor 210 of the caterpillar transfer means 200 is stopped. ) Is working.

It is mentioned that the flat glass loading means 300 described so far is a conventional technique.

On the other hand, the upper mold 500 is out of the outlet 402 of the heating means 400 is softened by the heating means 400 and loaded on the curved portion 101 of the lower mold 100, the flat glass 110 Press to form a curved glass.

11 to 14, the press means 550 is installed on the upper portion of the support frame 150 at a point outside the outlet 402 of the heating means 400 is the upper mold 500 This serves to move up and down.

The press means 550 is composed of a forming block 560, a pair of guide rails 570, a moving plate 573, the installation member 575, and the lifting means.

The forming block 560 is installed in the upper portion of the support frame 150 at the point away from the outlet 402 of the heating means 400, and is provided with a tunnel portion 560a through which both ends penetrate therein. A guide path 560b communicating with the outside is formed at the bottom of the tunnel portion 560a to guide the passage of the support shaft 102, and communicates orthogonally with the tunnel portion 560a in the direction of the outer wall from the center to the ceiling. A vertical passage 560c is formed, and an opening 560d having a size through which the upper mold 500 passes is formed in the outer wall so as to communicate with the tunnel portion 560a.

Here, a separate door may be installed in the opening 560d so as to be opened and closed. The door is opened when the upper mold 500 is removed from the forming block 560 to replace the mesh 501 to be described later. When the upper mold 500 is inserted into the forming block 560, the closing block serves to close the heat to the outside.

The guide rail 570 is formed in a pair, the end portion is installed on the upper surface of the forming block 560, the other end is protruded to extend a predetermined length in the outward direction of the forming block 560, the tunnel portion ( It is spaced at a predetermined interval in the direction orthogonal to 560a.

Here, the reference numeral 571 is a support for supporting the end of the guide rail 570 on the ground.

The movable plate 573 is installed to be linearly movable on the guide rail 570 via a roller 572.

The mounting member 575 is installed on the upper surface of the movable plate 573 via a plurality of supporters 574.

The lifting means is installed on the installation member 575 serves to raise and lower the upper mold 500.

The lifting means includes a cylinder 576, a vertical movement shaft 578, and an angle conversion means 580.

The cylinder 576 is installed in the installation member 575 so that the rod 576a is vertically disposed downward.

The upper and lower movable shafts 578 are fixedly installed at the upper end of the rod 576a, and the lower end thereof is positioned in the tunnel portion 560a of the forming block 560 through the vertical passage 560c. It passes through the vertical passageway 560c and the opening portion 560d of 560.

The angle converting means 580 is installed so that the upper mold 500 is connected to the lower end of the vertical movement shaft 578 so as to convert the angle.

The angle converting means 580 is composed of a mounting block 581, a sphere 582, a connecting portion 583, and a screw shaft 584.

The mounting block 581 has a sphere-shaped space portion 581a formed therein, a communication path 581b of a predetermined diameter is formed so as to communicate with the outside through the space portion 581a and an upper surface thereof, and at the bottom of the mounting block 581a. A flange portion 581c coupled to the center upper surface of the upper mold 500 by the fastening bolt 510 is formed to protrude.

The sphere 582 is rotatably embedded in the space portion 581a of the mounting block 581.

The connecting portion 583 is integrally formed at one side of the outer surface of the sphere 582 so as to protrude a predetermined length to the upper surface of the mounting block 581 through the communication path 581b and when the sphere 582 rotates. It is comprised so that it may move in all directions within the communication path 581b.

The screw shaft 584 has an upper end protruding a predetermined length integrally with the end of the vertical movement shaft 587, the lower end is screwed into the connecting portion 583.

On the other hand, the present invention is configured to further include a bracket 591, the support bar 592, and a fixing bolt 594 in the configuration as described above.

The bracket 591 is fixedly installed on the outer periphery of the lower end of the vertical movement shaft 578, and a flange portion 591a having a plurality of through holes 591b is provided on an outer surface thereof.

The support rod 592 penetrates the through hole 591b of the flange portion 591a of the bracket 591, and a lower end thereof is inserted into a recessed groove 581d formed at a predetermined depth on an upper surface of the mounting block 581. The upper end protrudes a predetermined length on the upper surface of the flange portion 591a.

The fixing bolt 594 is screwed to the support bar 592 on the upper surface of the flange portion 591a.

As described above, the upper end of the support bar 592 is suspended from the flange portion 591a by the fixing bolt 594.

The lower end of the support bar 492 is inserted into the recess groove 581d of the mounting block 581.

In addition, a predetermined gap is formed between the lower surface of the support bar 592 and the bottom surface of the concave groove 581d, and a predetermined gap is formed between the lower outer peripheral surface of the support bar 592 and the inner wall surface of the concave groove 581d. Is formed.

As described above, due to the gap between the lower end of the support bar 592 and the concave groove 581d, the upper mold 500 may rotate only a minute angle with respect to the vertical movement shaft 587.

On the other hand, the periphery of the upper mold 500 may cover the mesh of the glass material or tungsten material 501, the reason for doing this is to prevent damage to the curved glass.

In addition, the upper mold 500 is provided with a heater 502 for heating the temperature of the upper mold to a predetermined temperature, a temperature sensor 503 for sensing the temperature of the upper mold heated by the heater is provided.

By obtaining a heater in the upper mold 500 as described above, since the temperature of the upper mold 500 at room temperature (atmospheric temperature) during the initial operation of the present invention, the curved glass due to the temperature at the time of contact with the lower mold 100 In order to prevent this in advance, the flattening temperature of the upper mold 500 is to be raised to be almost equal to the temperature of the lower mold 100.

When the temperature of the upper mold 500 becomes substantially the same as the temperature of the lower mold 100, the temperature sensor 503 transmits a signal to the control means (not shown) to transmit the signal to the control means. Allow the heater to shut down.

Referring to the process using the upper mold 500 of the configuration of the present invention configured as described above and the process of replacing the upper mold with a new one as follows.

First, when the lower mold 100, which has escaped from the outlet 402 of the heating means 400 by the crawler conveying means 200, enters the tunnel portion 560a of the forming block 560, a separate entry detecting means. The lower mold 100 detects the entry into the tunnel portion 560a by (not shown).

Here, when the lower mold 100 enters into the tunnel portion 560a of the forming block 560, the support shaft 102 installed under the lower mold 100 also guides the forming block 560 ( 560b) of course.

As described above, when it is detected that the lower mold 100 has entered the tunnel portion 560a, the driving of the feed motor 210 for driving the caterpillar feed means 200 is temporarily stopped.

In this case, the lower mold 100 conveyed by the crawler conveying means 200 is stopped in the tunnel portion 560a of the forming block 560.

Thereafter, as shown in FIG. 11, the cylinder 576 constituting the lifting means is operated to allow the rod 576a to move forward.

In this case, when the rod 576a of the cylinder 576 is moved forward, the vertical movement shaft 578 connected to the rod 576a also moves downward by the full length of the rod 576a, The upper mold 500 fixed to the vertical movement shaft 578 is pressed into the curved glass 120 by pressing the flat glass placed on the curved portion 101 of the lower mold 100.

Next, the cylinder 576 constituting the lifting means is operated again so that the rod 576a is moved forward.

In this case, the upper mold 500 is returned to its original state in the upward direction together with the shank coaxial 578 by the rod 576a.

As described above, when one step of vertical movement of the upper mold 500 is completed, the controller (not shown) restarts driving of the transport motor 210 constituting the crawler transport means 200.

As described above, when the feed motor 210 constituting the caterpillar conveying means 200 is restarted, the lower mold 100 located in the tunnel portion 560a of the forming block 560 is the forming block 560. Passed through the exit of the continuously moved by the crawler means 200.

Accordingly, after the lower mold 100 enters the tunnel portion 560a of the forming block 560, the lower mold 100 is temporarily stopped and then the upper mold 500 is lowered to form the curved glass 120. When the mold 500 is raised, the lower mold 100 on which the curved glass 120 is placed is transported by the crawler transporting means 200 to be out of the forming block 560 and the other on which the flat glass 110 is placed. The lower mold 100 is conveyed to be located in the tunnel portion 560a of the forming block 560.

That is, the lower mold 100 passes through the tunnel portion 560a of the forming block 560 while repeating the stop-> movement step by step.

In addition, the cylinder 576 constituting the lifting means is stopped when the lower mold 100 is positioned within the tunnel portion 560a of the forming block 560 in accordance with the movement cycle of the lower mold 100. The operation is to lower the upper mold 500 to form the curved glass 120.

On the other hand, the press means 550 is provided with a separate angle conversion means 580, the angle conversion means 580 is moved up and down of the support shaft 102 and the upper mold 500 of the lower mold 100 When the center of the shaft 578 does not completely match and a predetermined value deviation occurs, the upper mold 500 serves to accurately match the curved portion 101 of the lower mold 100.

Hereinafter, the operation of the angle conversion means 580 will be described.

If the centers of the upper mold 500 and the lower mold 100 do not coincide with each other and have a slight eccentricity, the lower surface of the upper mold 500 contacts the curved portion 101 of the lower mold 100. As a result, a portion of the lower surface of the upper mold 500 that comes into contact with the curved portion 101 of the lower mold 100 may be formed first.

In this case, the upper mold 500 is rotated at a predetermined angle with the mounting block 581 around the sphere 582.

Therefore, the upper mold 500 is naturally seated on the curved portion 101 of the lower mold 100.

On the other hand, the upper mold 500 by the above-described angle conversion means 580 is provided with a means for rotating only the fine angle of the rotation angle of about 2 degrees to 3 degrees because the rotation angle is large.

As described above, when a part of the lower surface of the upper mold 500 contacts the lower mold 100, the upper mold 500 is rotated together with the mounting block 581 around the sphere 582.

At this time, when the mounting block 581 together with the upper mold 500 is rotated by a predetermined angle, the lower end of the support rod 592 is caught by the inner wall of the recessed groove 581d formed in the mounting block 581 and no longer the mounting block ( 581) cannot be turned.

Therefore, the upper mold 500 is rotated at a predetermined small angle, which causes the upper mold 500 to naturally sit on the curved portion 101 of the lower mold 100.

As described above, as the number of times the upper mold 500 is used increases, the mesh 501 covered on the upper mold 500 is often damaged. In this case, the mesh 501 should be replaced with a new one. do.

Hereinafter, the replacement process of the network 501 will be described.

First, as shown in FIG. 11, when the moving plate 573 is pushed in the direction of the solid arrow in the drawing, the guide rail 570 is linearly moved by the guide rail 570 by the rolling action of the roller 572. ) To the end of the

That is, it is located outside the forming block 560.

Here, when the moving plate 573 moves, all the components provided in the moving plate 573 such as the Shanghai coaxial 578 and the cylinder 576 move together.

As shown in FIG. 13, the shank coaxial 578 exits the forming block 560 through the vertical passage 560c of the forming block 560.

In addition, the upper mold 500 provided in the lower portion of the shanghai coaxial 578 comes out of the forming block 560 through the opening 560d formed through the side of the forming block 560.

Here, in FIG. 11, when the moving plate 573 is pushed in the direction of the dotted arrow, the upper mold 500 is positioned into the tunnel portion 560a of the forming block 560 through the opening 560d, The coaxial 578 enters through the vertical passage 560c and is positioned at the center of the forming block 560.

As described above, the process of replacing the upper mold 500 in the state in which the upper mold 500 is drawn out of the forming block 560, as shown in FIG. 12, protrudes into the mounting block 581. Removing the fastening bolts 510 for fastening the formed flange portion 581c and the upper mold 500 will replace the upper mold 500 with a new one.

In addition, the mesh 501 surrounded by the upper mold 500 may be replaced with a new one.

On the other hand, the curved glass unloading means 600 is formed by the upper and lower molds 100 and 500 and the curved glass 120 transferred by the crawler transport means 200 from the lower mold 100. To be unloaded.

Detailed configuration of the curved glass unloading means 600, the vacuum pickup / pick-up release means for picking up the curved glass 120 placed on the lower mold 100 conveyed by the crawler conveying means 200 in a vacuum Lifting and lowering the vacuum pickup / pick-up release means 320 to a position to pick up the 620, the product discharge conveyor 610, and the curved glass 120 placed on the lower mold 100. In addition, the linear movement robot 630, the linear movement robot 630, the product discharge conveyor 610 and the vacuum pickup / pick-up release means 620 to linearly move to the upper surface of the product discharge conveyor 610 is controlled. It consists of a control means (not shown).

Here, the operation relationship of the curved glass unloading means 600 will be described in more detail as follows.

First, the curved glass 120 placed on the lower mold 100 transferred by the crawler conveying means 200 is picked up by vacuum using the vacuum pickup / pickup release means 620.

Here, the vacuum pick-up / pick-up release means 620 is lowered by the linear mobile robot 630 to approach the lower mold 100 to pick up the curved glass 120 in vacuum, and then to the linear mobile robot 630 again. Is raised by.

Thereafter, the vacuum pickup / pick-up release means 620 is moved to the position of the product discharge conveyor 610 by the linear mobile robot 630.

Next, the vacuum pickup / pickup release means 620 is approached to the upper surface of the product discharge conveyor 610 by the linear mobile robot 630.

Thereafter, the curved glass 120 is picked up and released on the upper surface of the product discharge conveyor 610 by the vacuum pickup / pickup release means 620.

Finally, the vacuum pickup / pick-up release means 620 is returned to the position of the upper portion of the lower mold 100 which is the initial position by the linear mobile robot 630.

By repeating the above process, the curved glass placed on the curved portion 101 of the lower mold 100 to which the crawler is transported is unloaded one by one on the conveyor 610 for discharging products.

Here, the curved portion 101 of the lower mold 100 to be transported by the crawler transport means 200 by precisely controlling the feed speed of the crawler transport means 200 and the operating time of the curved glass unloading means 600. The curved glass 120 placed on it can be unloaded onto the conveyor 610 for discharging products one by one.

In other words, when the curved glass 120 is unloaded by the curved glass unloading means 600, the curved glass unloading is performed when the feed motor 210 of the crawler transport means 200 is stopped. To operate the means 600.

It is mentioned that the curved glass unloading means 600 described so far is a conventional technique.

1 and 10 in the above configuration, the annealing means 700 is further installed, the annealing means 700 is the press means 550 and the curved glass unloading means On the upper portion of the support frame 150 between the 600 is installed over a predetermined section in the longitudinal direction.

The annealing means 700 has a tunnel portion 703 of a constant length in which the inlet 701 and the outlet 702 are formed to pass through the lower mold 100 conveyed by the crawler transport means 200.

In addition, a guide path 704 communicating with the outside at the bottom of the tunnel portion 703 to guide the passage of the support shaft 102 of the lower mold 100 in the longitudinal direction over the entire tunnel portion 703. Is formed.

The annealing means 700 is a high quality product by slowly cooling the temperature of the curved glass 120 formed by the upper and lower molds 500 and 100 without quenching at room temperature so as not to damage or crack the tissue. It is to be able to produce.

The annealing means 700 is more preferably installed adjacent to the outlet of the forming block 560 described above.

Here, the configuration and operation of the caterpillar transport means 200 for transporting the lower mold 100 to pass through the tunnel portion 703 of the annealing means 700 has already been described in the above part, so that description thereof will be omitted. do.

As shown in FIG. 4, the annealing means 700 gradually decreases in temperature from the inlet 701 toward the outlet 702, and the temperature at the inlet 701 is 580 ° C., and the outlet 702 is at the outlet 702. The temperature of becomes 300 degreeC.

As described above, by gradually decreasing the temperature of the tunnel portion 703 of the annealing means 700 from the inlet 701 to the outlet, the curved glass 120 passing through the outlet 402 of the heating means 400 is quenched. It can prevent the defects such as cracking of the product by preventing it.

Meanwhile, as shown in FIG. 4, the heating means 400 gradually increases in temperature from the inlet 401 to the outlet 402, and the temperature at the inlet 401 is 600 ° C., and the outlet 402. It is preferable to make temperature of the side into 900 degreeC.

On the other hand, the present invention further comprises a rotating / releasing means 800 and the in-position setting means 880 in the configuration as described above.

The rotating / release means may include the lower mold 100 corresponding to a predetermined section in the heating means 400 when the lower molds 100 in the heating means 400 are stopped by the crawler transport means 200. ) And rotates the lower mold 100 when the lower mold 100 is transferred.

The exact position setting means is rotated by the rotating / releasing means and then the position of the lower mold 100 conveyed by the crawler conveying means 200 is brought into position to coincide with the upper mold 500. It plays a role of setting.

The rotating / release means is largely comprised of a sprocket 810, a base member 820, a driving side / driven rotating body 830 and 831, a driving motor 840, and first and second power transmission members. 841 and 842, and a power transmission control means.

The sprocket 810 is coupled to the lower end of the support shaft 102 of the lower mold 100 rotatably installed in the crawler conveying means 200.

The base member 820 has a predetermined length, and is installed in the longitudinal direction in the support frame 150 corresponding to the lower molds 100 corresponding to a predetermined section in the heating means 400.

The driving side / driven side rotating bodies 841 and 842 are rotatably installed on upper surfaces of both ends of the base member 820.

Here, the driving side / driven side rotating bodies 841 and 842 may use a pulley or a sprocket.

The drive motor 840 serves to rotate the drive side rotor 830 via the first power transmission member 841.

Here, the first power transmission member 841 may use a chain or a belt as an example.

The second power transmission member 842 serves to transmit the rotational force of the driving side rotating body 830 so that the driven side rotating body 831 is rotated.

The power transmission control means may include the second power transmission member 842 such that the straight portion adjacent to the sprocket 810 of the two straight lines facing each other of the second power transmission member 842 is coupled / released to the sprocket 810. Push or pull the straight portion of the) serves to rotate / stop the lower mold 100 together with the sprocket 810.

The power transmission control means is largely composed of a pair of deflection prevention rail 850, a sliding means 860, and a cylinder 870.

The deflection preventing rail 850 is formed in a pair, and is spaced apart from an upper surface of the base member 820 between the driving side rotating body 830 and the driven side rotating body 831, and the second power transmission. It guides the movement of the two lines of the member 842 and serves to prevent the straight portion from sagging.

The sliding means 860 is installed between the deflection prevention rail 850 and the base member 820, and slides the deflection prevention rail 850 in a direction perpendicular to the longitudinal direction of the base member 820. It plays a role.

Here, the sliding means 860 uses a conventional LM guide rail or dovetail rail.

The cylinder 870 serves to push or pull the deflection prevention rail 850 adjacent to the sprocket 810 of the pair of deflection prevention rails 850.

So far, the configuration of the rotation / release means 800 has been described.

On the other hand, the exact position setting means 880 is composed of a large setting projection 881 and the setting member 882.

The setting protrusion 881 is formed to protrude a predetermined length in a downward direction at a lower edge portion of the sprocket 810 provided at the end of the support shaft 102.

The setting member 882 is provided on the lower side of the support frame 150 in which the press means 550 is installed, and the setting projection passage path 882a is passed through the front and rear so that the setting projection 881 is guided through. Is formed, and the setting protrusion entrance guide part 882b having an enlarged opening larger than a diameter of the sprocket 810 by a predetermined value is tapered in the front portion of the setting protrusion passageway 882a.

The operation of the rotating / releasing means 800 and the exact position setting means 880 of the present invention configured as described above will be described.

The reason for rotating the lower mold 100 by using the rotating / release means 800 is that the high temperature heat generated in the tunnel portion 403 of the heating means 400 is evenly curved surface portion of the lower mold 100 ( It is to be delivered to the flat glass 110 seated on the 101 so that the flat glass 110 can be softened without bias.

First, the drive of the caterpillar conveying means 200 is stopped and the lower mold 100 is stopped, and the upper mold 500 is lowered by the press means 550 to lower the mold within the forming block 560. At the time when the curved glass 120 is molded in contact with the 100, the cylinder 870 constituting the power transmission control unit is driven to move the deflection prevention rail 850 toward the support shaft 102 of the lower mold 100. Push it up.

The deflection prevention rail 850 is approached to the support shaft 102 of the lower mold 100 through the sliding means 850 by the driving of the cylinder 870.

Therefore, the straight portion of the second power transmission member 842 installed to be movable on the deflection preventing rail 850 is engaged with and engaged with the sprocket 810 installed on the support shaft 102 of the lower mold 100.

Subsequently, when power is applied to the driving motor 840 to drive it, the driving force of the driving motor 840 rotates the driving side rotating body 830 by the first power transmission member 841, and this driving side The rotational force of the rotating body 830 rotates the driven side rotating body 831 by the second power transmission member 842.

Accordingly, the driving force of the driving motor 840 is to rotate the second power transmission member 842 in an infinite track by the driving side / driven side rotating bodies 830 and 831.

As the second power transmission member 842 is rotated in a caterpillar manner, the sprocket 810 engaged with the sprocket 810 is rotated. As the sprocket 810 is rotated, the lower mold 100 together with the support shaft 102 is rotated. This will be rotated.

On the other hand, after a predetermined time, the controller (not shown) causes the drive motor 840 constituting the rotation / release means 800 to stop.

When the driving motor 840 is stopped, since the second power transmission means 842 is stopped, the rotation of the sprocket 810 engaged thereto is stopped, and as a result, the rotation of the lower mold 100 is stopped.

Thereafter, the controller (not shown) drives the cylinder 870 constituting the power transmission control unit so that the sag prevention rail 850 retreats.

That is, when the deflection prevention rail 850 is retracted, the second power transmission member 842 is naturally separated from the sprocket 810.

This situation is sensed by a separate sensing means (not shown) and the signal is sequentially transmitted to the press means 550, and then transmitted to the caterpillar transfer means 200.

When the rotation of the lower mold 100 is stopped and a signal indicating that the sprocket 810 and the second power transmission member 842 are separated from each other is transmitted to the pressing means 550, the pressing means 550 is driven to the upper portion. The mold 500 is raised.

In addition, when the rotation of the lower mold 100 is stopped and a signal that the sprocket 810 and the second power transmission member 842 are separated from each other is transmitted to the caterpillar transport means 200, the caterpillar transport means ( 200 is driven to move the lower mold 100 by one step.

Therefore, the rotating / releasing means 800 according to the present invention operates by repeating the above process.

On the other hand, the lower mold 100 rotated by the rotating / releasing means (800) Hans the lower mold 100 at a separation distance corresponding to the installation interval of the lower mold 100 by the tracked transport means (200). It is transferred by taps.

However, since the lower mold 100 is rotated by a predetermined angle, when entering the forming block 560 in the rotated state, since the lower mold 100 does not coincide with the upper mold 500, the complete curved glass may be formed. none.

Therefore, the position of the lower mold 100 in the rotated state must be set to coincide with the upper mold 500 before entering into the forming block 560 and then entered.

That is, the lower mold 100 is set to the correct position by the exact position setting means 880, the operation of the position setting means as follows.

The setting protrusion 881 provided on the lower edge of the sprocket 810 installed on the support shaft 102 of the lower mold 100 may include a setting member provided below the support frame 150 on which the press means 550 is installed. 882 enters under the guidance of the entry guide 882b (FIG. 19 (a)),

Here, since the setting protrusion passageway 882a and the support shaft 102 of the lower mold 100 are disposed in a straight line, the setting protrusion 881 may be configured to reduce the inner surface of the entry guide 882b. The guide shaft 102 is rotated by a predetermined angle with the lower mold 100 while being guided along (FIG. 19 (b)).

Thereafter, the setting protrusion 881 is aligned with the passageway 882a. (C) of FIG. 19.

Thereafter, when the setting protrusion 881 enters the setting protrusion passage path 882a, the lower mold 100 is rotated in a state coinciding with the upper mold 500 to be set in position.

Meanwhile, according to the present invention, the curved surface of the lower mold 100, which is loaded on the curved portion 101 of the lower mold 100, is sucked into the area of the press means 550 in the above configuration, and vacuum-adsorbed the curved surface. It is further provided with a vacuum adsorption means (900).

The vacuum suction means 900 is used according to the characteristics of the product, the present invention can selectively use the press means 550 and the vacuum suction means (900).

Hereinafter, a detailed configuration of the vacuum adsorption means 900 will be described with reference to FIG. 20.

First, the inside of the lower mold 100 is formed to be filled with a ceramic material.

In addition, a hollow portion 102a which is vertically penetrated is formed in the support shaft 102 of the lower mold 100, and the upper opening 102b of the hollow portion 102a is curved on the lower mold 100. It is formed to communicate with the portion (101).

In addition, an upper suction pad 910 having a vacuum suction passage 911 penetrated up and down to communicate with the hollow portion 102a is installed at a lower end of the support shaft 102.

Then, the cylinder 920 is installed so that the rod 921 is operated up and down at a predetermined position of the support frame 150 directly below the corresponding lower mold 100 before entering the area of the press means 550.

In addition, a lower suction pad 930 is provided at the end of the rod 921 in an airtight contact with the upper suction pad 910 and is provided with a vacuum suction passage 931 penetrating the upper surface and the side surface.

Then, the air in the curved portion 101 of the lower mold 100 is vacuum suction passage 911 of the hollow portion 102 and the upper suction pad 910, the vacuum suction passage 931 of the lower suction pad 930. A vacuum pump 950 connected to the vacuum suction hose 940 is installed in the vacuum suction passage 931 formed on the side of the lower side pad 930 so as to be discharged in a vacuum state.

Finally, an on-off valve 941 is installed on the vacuum suction hose 940.

Referring to the operation of the vacuum adsorption means 900 as described above are as follows.

First, the cylinder 920 is operated to move the rod 921 upward.

As described above, when the rod 921 is advanced upward, the lower suction pad 930 installed thereto is hermetically contacted by the upper suction pad 910 installed at the lower end of the support shaft 102.

Here, the vacuum pump 950 is always in operation, and the opening of the passage of the vacuum suction hose 940 by operating the on-off valve 941 provided on the vacuum suction hose 940, the curved surface of the lower mold 100 The air on the part 101 is sucked into the hollow part 102 formed on the support shaft 102 of the lower mold 100 by vacuum pressure, and then sucked into the vacuum suction passage 911 of the upper suction pad 910. Next, it is sucked into the vacuum suction passage 931 formed in the lower suction pad 930 and discharged to the outside.

Therefore, the flat glass 110 loaded on the curved portion 101 is deformed into the curved state because the curved portion 101 of the lower mold 100 maintains a substantially vacuum state as described above. It is in close contact with the mold and is molded into a curved glass state.

Here, the reason that the flat glass 110 is deformed into a curved shape when the air in the space between the curved portion 101 and the flat glass 110 is evacuated and discharged to the outside is the flat glass heating means 400. It is possible because it softens through).

On the other hand, in the case of applying the vacuum adsorption means in the present invention, all of the lower mold 100 should be made of a ceramic material having high heat resistance, and the hollow portion 102 should be formed on the support shaft 102 of the lower mold 100. , At the bottom of the support shaft 102 should be installed all of the upper adsorption pad 910.

However, the cylinder 920 and the vacuum pump 950 are installed in the support frame 150 corresponding to the lower side of the lower mold 100 before entering the region of the press means 550.

As described above, according to the present invention, in order to mass-produce not only spherical curved glass but also three-dimensional curved glass, the lower mold loaded with glass may be very simple.

Claims (4)

A transfer motor 210 installed on a fixing stand 201 installed to protrude outward from one side of the support frame 150; A first drive sprocket 212 fixed to the motor shaft 211 of the transfer motor 210; A rotating shaft 220 rotatably installed at both ends of the support frame 150 via a bearing 221; A driven sprocket 222 fixedly installed on the rotating shaft 220; A transmission member 223 connected to the first driving sprocket 212 and the driven sprocket 222 to transmit the rotational force of the motor shaft 211 of the transfer motor 210 so that the rotation shaft 220 is rotated; ; A second drive sprocket 224 installed on the rotating shaft 220 corresponding to a predetermined height downward from the driven sprocket 222 and being rotated together with the rotating shaft 220; A third drive sprocket 225 rotatably installed on the support means 227 at a position spaced apart from the second drive sprocket 224 by a predetermined distance; A drive chain 226 installed between the first and second drive sprockets 224 and 225 to rotate in an endless track; It receives a rotational driving force of the drive chain 226 includes a support shaft 102 at the bottom and a linear movement means 230 for transporting the lower mold loaded with glass on the upper surface, The linear movement means 230, A cylindrical body 231 rotatably installed at a lower end portion of the support shaft 102 via a bearing 231a; A first bracket 232 protruding perpendicularly to the support shaft 102 on an outer surface of the cylindrical body 231; A first guide angle 232 fixedly installed on a lower surface of the ceiling 151 of the support frame 150; A first horizontal roller 233 which is rotatably installed on an upper end of the first bracket 232 and which contacts the outer surface of the first guide angle 232; A second bracket 234 extending downwardly by a predetermined length on a lower surface of the end of the first bracket 232; A vertical roller 235 rotatably installed on an outer surface of the second bracket 234; A second guide angle 236 installed on an outer surface of the vertical wall 152 installed vertically in the support frame 150 to guide the vertical roller 235; A mounting angle 237 fixed to the lower end of the second bracket 234; A second horizontal roller 238 rotatably installed at one end of the mounting angle 237; A third guide angle 239 installed at a lower outer surface of the vertical wall 152 of the support frame 150 to guide the second horizontal roller 238; It is installed on the other end of the mounting angle (237) transfer device, characterized in that consisting of a driven chain 240 meshed with the drive chain (226). delete The method of claim 1, The second bracket 234 is provided with a lever member 234a of a predetermined length, the center portion of which is pivotably connected, Auxiliary vertical rollers 235a and 235b are rotatably installed at both ends of the lever member 234a, respectively, and the auxiliary vertical rollers 235a and 235b are guided by the second guide angle 236. Characterized in that the transfer device. The method of claim 3, wherein The support means (227), the fixed frame (227b) is installed to be movable in a linear direction by the guide rail (227c) with respect to the ground; A rotating shaft 227a installed vertically in the fixing frame 227b and having the third drive sprocket 225 fixed to an outer surface thereof; The rod 227d is fixedly installed on the outer surface of the fixing frame 227b to move the fixing frame 227b in the front-rear direction to adjust the distance between the second and third driving sprockets 224 and 225 to drive chain ( 226, the transfer device characterized in that consisting of a cylinder (227e) for adjusting the tension or tension.

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