JPS582064Y2 - Automatic printing equipment for glass or ceramic square substrates - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for automatically printing circuit patterns and the like on square or rectangular glass or ceramic substrates.

Conventionally, in order to print circuit patterns etc. on glass or ceramic substrates, these substrates were placed one by one on the chuck plate of a printing machine by hand, and the chuck plate was moved and placed under the printing plate. Alternatively, the printing plate is moved onto the chuck board and set in place, then a squeegee is moved to print circuit paste on these boards, and when printing is finished, the chuck board is removed. Either return to the original position, that is, the position where these substrates were placed, or the printing plate returns to its original position, take out the printed substrates, finish printing, and then insert the next one of these substrates and print again. This method was repeated.

However, the above method is inefficient because the glass or ceramic substrates are loaded and unloaded one by one manually, and when printing is performed one after another using several printing plates, the order of each printing is different. Because it changes easily, it is inconvenient, for example, it is difficult to investigate the relationship between the defective part of the plate and the board.

The printing device of the present invention solves the above-mentioned drawbacks and also enables labor and space savings.

Hereinafter, printing of a square ceramic substrate will be described in detail with reference to the embodiment shown in the drawings. Reference numeral 1 denotes a first magazine, and grooves 16 are formed at regular intervals on both left and right sides of the inside for holding the left and right edges of the substrate in and out. They are arranged vertically in parallel,
On the other side, side plates 17 are attached on both sides.

A pusher 2 is driven by an air cylinder 5 and sends the substrates 3 one by one from the magazine onto a rope conveyor to be described later.

When the substrate 3 is sent out, the motor 6 is actuated by a phototube device (not shown), and the magazine platform 8 carrying the magazine 1 is pushed up for a certain period of time until another phototube is activated by the worm gear mechanism to stop it.

A rope conveyor 4 transports the substrate 3 supplied from the magazine 1. When the substrate hits a stopper 9 at a position below the screen printing plate 13 fixedly disposed above the rope conveyor 4, the conveyor 4 will stop automatically.

When the conveyor stops, either edge perpendicular to the edge that abuts the stopper 9 is placed on the screen printing plate 13.
An air cylinder 11 fixed at the same height as the rope conveyor 4 below is pressed against the centering stopper 10 to center and fix the position of the substrate, and then the screen printing plate 13 is pressed under the conveyor 4 and at the same height as the screen printing plate 13. A chuck board 18 holds the substrate by another vertical cylinder 14 placed directly below the conveyor 4, moves up between the ropes, lifts the substrate to a predetermined position on the conveyor 4, and stops, and at the same time, unnecessarily removes the substrate during printing. Fix the board using a vacuum device, etc. to prevent it from moving.

Next, place squeegee 1 on the screen of screen printing plate 13.
9 to print a predetermined circuit pattern on the board using, for example, conductive paste.

When printing is completed, the chuck plate 18 is lowered by the air cylinder 14, and the substrate is placed on the conveyor 4 again.

The conveyor 4 then moves and the substrates are transported in the same direction as before until they hit a stop 15 placed in front of the second magazine 1'.

When the substrate hits the stopper 15, the conveyor 4 stops again.

At this time, the limit switch is activated and the pusher 2' is operated to feed and store the substrate into a second magazine 1' which has the same structure as the first magazine 1 and is placed on the side of the conveyor 4.

Each time a substrate is fed into the magazine 1', the phototube raises the magazine 1' by the height of one substrate, like the first magazine, so that the groove 16 can accommodate the next substrate.

On the other hand, during this operation, printing is being performed on the next substrate, and at the same time the next substrate is fed from the magazine 1 onto the conveyor 4, and only when the conveyor 4 is stopped, these feeding, printing,
The three storage steps are sequentially performed on the substrates, and the conveyor 4 is repeatedly transferred and stopped so that the printed substrates can be sequentially and hierarchically fed into the grooves 16 and stored in the magazine 1'.

In this way, the printed boards are stored one after another in the second magazine 1', and when all the boards are stored, the handle 2
0, the magazine 1' is removed from the magazine stand 8' and placed together with the magazine 1' in a drying oven to dry the substrates.

At this time, since each board is stored in a shelf shape inside the magazine at regular intervals, it is also possible to put the board into the furnace with the side plate of the magazine at the bottom.

The magazine containing the dried substrates is placed as is on the first magazine stand 8, and the next printing can be repeatedly performed on the substrates to perform laminated printing.

In the proposed automatic printing device for rectangular substrates, the conveyor uses a rope, so it makes linear contact with the back surface of the substrate, and the contact area is extremely small, and the rope's ability to withstand dirt and debris against glass or ceramic substrates is better than that of a belt-like rope. Therefore, when the printed circuit board is stored in a magazine after printing, there is no risk of contamination of the circuit pattern due to dirt or dust falling from the back surface of the upper substrate to the printed surface of the lower substrate.

Therefore, there is no problem in repeatedly printing the substrate. Furthermore, since the surface area of the chuck plate that passes between the ropes and moves up and down can be increased, the substrate is strongly supported over a wide area during printing, so printing can be performed in a stable state.

In addition, since the magazine has grooves spaced vertically on both sides of the magazine, the rectangular board is supported by both edges and does not come into contact with each other, thereby preventing damage to the printed circuit pattern. This eliminates the inconvenience caused by the easy change in the order of printing, and allows printing to be automatically and repeatedly performed in the correct order.

Furthermore, since the rectangular substrates are housed in the magazine in a three-dimensional hierarchical manner, the work area can be used extremely effectively, allowing work to be done in a narrow space.

Furthermore, since the proposed device prints with the screen printing plate fixed only by vertical movement of the chuck board that passes between the ropes, the time required for the movement of the chuck board or screen printing plate in the conventional method is reduced. There is an advantage that you can only print extra.

[Brief explanation of the drawing]

FIG. 1 is a front view of the automatic printing device of the present invention. Figure 2 is a plan view of the same. FIG. 3 is a partially cutaway front view of the magazine used in this device. Figure 4 is a plan view of the same. FIG. 5 is a perspective view of the main mechanical parts for explaining this device. Main symbols in the drawings 1...First magazine, 1'
...Second magazine, 2,2'...Pusher, 3...Ceramic board, 4...
・Rope conveyor, 8, 8'... Magazine stand, 9... Stopper, 10... Centering stopper, 13... Screen printing plate, 14
... Air cylinder, 15 ... Stopper, 16 ... Groove, 17 ... Side plate,
18...Chuck board, 20...Handle.

Claims (1)

[Scope of utility model registration request] It is equipped with a rope conveyor consisting of two ropes that alternately repeat transfer and stop, and a first and second magazine for storing rectangular substrates that can be moved up and down is arranged at both ends of the conveyor. Grooves are arranged vertically at intervals to hold the left and right edges so that they can be moved in and out, and plate-shaped pusher means are provided for moving the rectangular substrates into and out of the magazine, respectively, with respect to the rope, and further fixed above the conveyor. a screen printing machine arranged in a vertically arranged manner, a stopper that stops a rectangular substrate on a rope together with a conveyor directly below the printing machine, and a core that clamps the rectangular substrate orthogonally to the direction of substrate transport in connection with the operation of the stopper. A glass or ceramic rectangular substrate formed from a feed stopper and a chuck plate means located below a rope conveyor with respect to the printing machine and capable of moving up and down to a printing position while passing between the ropes and holding the rectangular substrate. Automatic printing equipment.