JPH0446858B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus that applies markings to the upper part of a glass plate in a horizontal state, converts the glass plate into a vertical position, raises the glass plate, and transfers the glass plate to another conveying means. . [Prior Art] Conventionally, as a method of manufacturing tempered glass by heat-treating a glass plate, a predetermined upper part of a glass plate to be heat-treated is gripped and suspended by a plurality of tongs, and the glass plate is carried into a heating furnace and heated to a predetermined position. A method is known in which tempered glass is obtained by heating the glass to a certain temperature, press-molding it as necessary, and rapidly cooling it. In this method, it is necessary to select the tong gripping position so that the load of the glass plate itself acting on each tong is equal, so the gripping position is marked on the top of the glass plate. Conventionally, this marking device holds and positions a glass plate vertically, marks the top of the glass plate using a number of marking heads set in advance at marking positions, and places the glass plate with the markings on the bottom of the glass plate. A device is known in which the device is raised by a cylinder and suspended from tongs. (For example, see Japanese Patent Publication No. 59-11537.) [Problems to be solved by the invention] In the conventional device described above, the marking device and the delivery device are integrated, so the work cycle is long, and it is difficult to operate the device. This method has the drawbacks of severe worker fatigue and the possibility of poor marking and hanging position. [Means for solving the problem] The present invention provides a marking means and a delivery means separately and independently, thereby improving the accuracy of each and improving workability.
A marking head that is movable in the X-Y direction and has a marking section at its tip that can sandwich a glass plate and apply marking agent to both the front and back surfaces, a conveyor that can be raised and lowered to horizontally transport the glass plate, and a conveyor at the end of the conveyor. To provide a device consisting of an integrated rotating rod having a suction cup and a plurality of free rollers for sucking and fixing a glass plate, and a support member supporting the lower end of the glass plate when the rotating rod is in a vertical position. It is something. [Function] In the present invention, the X-Y movement distance and stop position of the marking head and the start time of the operation of the marking part at the tip are stored in advance in the control unit of the marking head, and the glass plate is stationary in a horizontal state. For example, 8 to 10 points are marked on the upper part of the glass plate by operating the marking head according to a pre-stored program, and the glass plate with the markings is transferred to the end by the conveyor and stopped, and the conveyor is stopped. By lowering the glass plate, the glass plate is placed on the rotating rod. The glass plate is fixed by a suction cup on a rotating rod, and the rotating rod rotates from a horizontal position to a vertical position and then stops. In this vertical state, the lower end of the glass plate is supported by a support member whose position is adjusted in advance according to the size and shape of the glass plate. When the glass plate is supported by the support member, the adsorption state by the suction cup is released, and simultaneously with the release, the support member rises, and the glass plate is suspended from the tongs waiting above the support member. The present invention repeats this series of operations to sequentially mark the glass plates and deliver them to the tongs. [Example] An example of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a glass plate, which is stationary above the conveyor 2 . A marking means 3 is provided at the right end of the conveyor 2 , and a delivery means 4 is provided at the left end. The conveyor 2 transports the glass plate 1 from the marking means 3 to the delivery means 4 , and a belt 7 is stretched between pulleys 6 and 6' provided at both ends of the pedestal 5, and 9 and stand 5
The frame 8 is rotatably connected to the block 10 by a connecting rod 11, and the cylinder 12 provided on the frame 8 is connected to the rotating shaft 9 by an operating rod 13, and the connecting rods 11 are adjusted together. They are connected by a rod 14, and the pedestal 5 is smoothly raised and lowered by the operation of a cylinder 12. Note that the stroke of the cylinder 12 and the operating rod 13 and the connecting rod 11 are adjusted so that the raised position of the conveyor 2 is higher than the mounting surface of the delivery means 4 and the lowered position thereof is lower than the delivery means 4. Adjust the length. The marking means 3 includes a pair of marking heads 15, 15' and a pair of marking heads 15, 15'.
5' in the Y direction of the arrow
It consists of. The frame 16 has threaded shafts 17, 17' in the center and guide shafts 18 on both sides thereof.
7 and 17' are set so that the rotation direction is reversed,
The marking heads 15, 15' are screwed onto the shafts 17, 17', respectively, and are slidably inserted into the guide shaft 18. And the marking heads 15, 15' are connected to the shaft 17,
The rotation of 17' sequentially moves from the standby position shown in FIG. 2 to a predetermined position. Further, the marking heads 15, 15' have marking portions 19 at their tips, and the marking portions 19 are the marking heads 15, 15'.
A motor 20 provided in the holder allows it to freely move forward and backward in the X direction of the arrow. The marking section 19 consists of a lower fork 21 and an upper fork 22, both of which are rotatably attached to a frame 24 with a pin 23. The lower fork 21 has a spring 25
Therefore, it is always in contact with the frame 24, and the tip of the contact portion 27 is at the same height as the lower surface of the glass plate 1. The upper fork 22 is attached to the rod end of the cylinder 26, and
is fixed to the lower fork 21, and the upper fork 22 has an abutment part 27' for applying the same marking agent to the glass plate 1 as the lower fork 21. Therefore, when the cylinder 26 is actuated, the upper fork 22 and the lower fork 21 rotate to create a gap between the abutting portions 27 and 27'. In this state, the marking part 19 moves forward and enters between the glass plates 1,
When the cylinder 26 is stopped at a predetermined position, the cylinder 26 is operated to close the contact portions 27 and 27', and the marking agent is applied to both sides of the glass plate 1. After application, the cylinder 26 operates again and the contact portion 2
Create a gap between 7 and 27'. Note that, in the shape of the glass plate 1 of the embodiment, the hanging positions of the pair of marking heads 15, 15' are symmetrical to the center of the glass plate 1, so they only need to be moved by the same distance from the center. As in this embodiment, the operation can be satisfied by rotating the shafts 17, 17' in the opposite direction by one motor 19, but depending on the shape of the glass plate 1, the hanging position (marking point)
is not applicable, each shaft 17,
It will be readily understood that 17' may be provided with a motor and may also include a single marking head. Further, since the stopping of movement of the marking heads 15, 15' in the Y direction, the stopping of movement of the marking part 19 in the X direction, and the operation of the cylinder 26 are determined once the shape of the glass plate 1 is determined, The setting values are stored in advance in a microcomputer according to the shape of the marking head 1.
By controlling the operations of 5 and 15', changes in accordance with changes in the shape of the glass plate 1 can be made very easily. Note that when the glass plate 1 is carried onto the conveyor 2 from another conveyor, a device may be provided to position the glass plate 1 at a predetermined position, and the glass plate 1 may be transferred to the conveyor 2. Instead of the illustration, a mounting table on which the glass plate 1 is placed may be provided separately. The delivery means 4 consists of a pair of rotating rods 28 and a support member 29 provided on both sides of the conveyor 2 . The rotating rod 28 is fixed to a shaft 31 of a pedestal 30 provided at the end of the conveyor 2 .
The cylinder 3 attached to the pedestal 30 is
The operating rod 33 attached to the rod 2 is fixed. Further, the rotating rod 28 is moved up and down by a plurality of free rollers 34 and a cylinder 44,
It has a suction cup 35 that communicates with a vacuum pump (not shown), and the glass plate 1 that has been transferred by the conveyor 2 and stopped at a predetermined position is placed on the rotating rod 28 as the conveyor 2 descends, and the vacuum pump is activated. By doing so, the suction cup 35 is able to adsorb it. Although the drawing shows the conveyor 2 moving up and down, the glass plate 1 may be delivered by moving the rotating rod 28 up and down instead of moving the conveyor 2 up and down. A screw shaft 36 is provided on the pedestal 30 so as to be rotated by a motor (not shown), and an elevating plate 37 is screwed onto the screw shaft 36. A cylinder 38 is fixed to the elevating plate 37, and the supporting member 29 is attached to the tip thereof. A guide bar 39 is fixed to the support member 29,
The bar 39 passes through the guide member 40 of the lifting plate 37, and the support member 2 is moved by the operation of the cylinder 38.
Move 9 up and down accurately. In addition, 41 is the elevating plate 3
This is a guide pulley that guides the lifting and lowering of 7. The elevating plate 37 is moved up and down by the operation of a motor according to the shape of the glass plate 1, so that the support member 29 can always come into contact with the lower end of the glass plate 1. 42 is a tong, and 43 is a hanger conveyor. Next, the operation of one embodiment of the present invention will be explained. When the glass plate 1 comes to rest at a predetermined position, the marking heads 15, 15' move from the standby position and stop at a predetermined position. The marking part 19 moves forward and stops at a marking point a few mm from the edge of the glass plate 1.
The cylinder 26 is operated and the marking agent is applied to the front and back surfaces of the glass plate 1 by the contact portions 27 and 27'. When one area is coated, the cylinder 26 operates again and the lower fork 21 and upper fork 2
2 to open the contact portions 27, 27'. Next, the marking heads 15, 15' move to the second position and perform the same operation as described above.
Apply the second marking. When a predetermined number of glass plates have been marked in this way, the glass plates 1 are moved to the delivery means 4 by the conveyor 2 , and the marking heads 15, 15' return to their standby positions and prepare for marking the next glass plate. After conveying the glass plate 1 to a predetermined position on the rotating rod 28, the conveyor 2 is lowered and places the glass plate 1 on the rotating rod 28. Next, operate the vacuum pump to remove cylinder 4.
Extend the rod 4 and attach the suction cup 3 to the bottom of the glass plate 1.
5 are brought into contact with each other and fixed to the rotating rod 28, and the cylinder 32 is operated to rotate the rotating rod 28 to a horizontal position. When the glass plate 1 is vertical, the screw shaft 36
Its height is adjusted by rotation of the support member 29, and the support member 29 comes into contact with the support member 29. Next, as the suction of the suction cup 35 is released, the rod of the cylinder 44 contracts and the suction cup 35 retreats, and the cylinder 38 operates to raise the support member 29 and move the glass plate 1 along the free roller 34 of the rotating rod 28. Move it up and attach it to the tongs 42. When the installation of the glass plate 1 is completed, the rotating rod 28 and the support member 29 return to a predetermined standby position in preparation for the next glass plate. In this way, the glass plates are marked one after another,
It is intended to be delivered to tongs. [Effects of the Invention] The present invention shortens the work cycle by making the marking means and the delivery means separate and independent, and improves work efficiency by simplifying the work associated with changing the shape of the glass plate. The X-Y movement of the head improves marking accuracy, prevents local elongation of the glass plate during heating, and allows smooth transfer of the glass plate to the tongs using the rotating rod and support member that can be raised and lowered. It has the effect that it can be carried out.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention, Figure 2 is a side view showing one embodiment of the present invention;
The figure is a plan view thereof, and FIG. 3 is a partially enlarged view of the marking section. DESCRIPTION OF SYMBOLS 1... Glass plate, 2 ... Conveyor, 3 ... Marking means, 4 ... Delivery means, 15, 15'...
...Marking head, 19 ...Marking section, 2
8... Rotating rod, 29... Supporting member.

Claims (1)

[Claims] 1. A marking head movable in the X-Y direction that marks both sides of a stationary glass plate, a conveyor that transports the glass plate, and a suction cup and free roller that are provided at the end of the conveyor and that suck the glass plate. and a rotating rod that rotates between a horizontal position and a vertical position, and a support member that can be raised and lowered to support the lower end of the glass plate in the vertical position of the rotating rod. Glass plate marking device.