JPS5829052Y2 - Fall prevention device - Google Patents

Description

[Detailed Description of the Invention] The present invention provides the following advantages:
The present invention relates to a device for preventing glass products from falling on a conveyor.

Generally, when transferring a product molded by a glass molding machine to the next important process or slow cooling process, the molded product is taken out by a molded product take-out device attached to the molding machine and placed on a driving belt conveyor. The commonly used method is to place it on the table.

On the other hand, molding machines, take-out devices, important equipment, lehring furnaces, etc. are generally heavy and need to be placed on stable tables, so it is not recommended to provide a mechanism to adjust their height positional relationships. This is practically difficult, and therefore, the position and height of each device are usually fixed in advance with a predetermined margin in order to accommodate a wide variety of sizes and shapes of molded products.

This means that the molded product taken out by the take-out device is dropped a certain distance when it is placed on the belt conveyor. When loading items, if they are dropped from a certain height onto an operating belt conveyor, the tip may sometimes be tripped by the moving conveyor and fall, making it impossible to transfer to the next process and causing the drop. This may lead to a decrease in retention.

The device of the present application is a device made to prevent this, and when the molded product taken out from the molding machine is dropped onto the belt conveyor, the hollow cylindrical wall is closed on the belt conveyor. The molded product is held by falling loosely into a pair of attitude control pieces, and the molded product is driven by a belt conveyor by opening the pair of attitude control pieces after a certain period of time when the molded product stops swinging. The posture control piece is opened and closed intermittently in synchronization with a molded product take-out device attached to the molding machine.

In addition, holding a falling molded product so that it does not fall when the pair of attitude control pieces are closed is nothing more than preventing it from falling, and there is no need to hold the molded product by the attitude control pieces. Not at all.

Rather, in order to avoid contact between the molded product and the attitude control piece when it falls, considering the drop position of the molded product, it is preferable that the attitude control piece surrounds the molded product with a gap.

Next, the present invention will be explained according to embodiments shown in the drawings.

In Figures 1 and 2, 1 is a glass product, 2 is a belt conveyor, 17 is a stand for installing the device of the present invention so that it is located above the belt conveyor 2, and 3.3' is an arm. 10.10' is a posture control piece fixed to the arm 10.10'.
．． The bell cranks 7 and 11' are fixed to the ends of the T respectively.

Furthermore, a roller 14 is rotatably attached to the side surface of the other bell crank T by a shaft 15.

Also, a rod 16 that stands upright from the upper end of the shaft 15 and the installation base 17
A spring 5 is stretched between the upper end and the bell crank 7, and pulls one end of the bell crank 7 rearward.

The other end of the bell crank 7' is pivotally connected to one end of a connecting rod 6 through a pin 12, and the other end of the connecting rod 6 is pivotally connected to one end of a piston rod 18 of the air cylinder 4 through a pin 13.

Reference numeral 8 denotes a stopper fixed to the erecting base 17, and the stopping position of the bell crank 7' can be adjusted by means of a screw 9 passing through the bell crank T'.

19.19' is a supply pipe for compressed air to the air cylinder 4, and this compressed air is supplied and discharged by intermittently opening and closing the electromagnetic pulp using electric signals taken out from the rotational drive source of the adjacent glass molding machine. Alternatively, the electromagnetic pulp is intermittently opened and closed by an electric signal from a cam that operates an accessory device such as a gob shear that is linked to the molding machine, and is supplied to and discharged from the air cylinder 4.

Next, the operation of this device will be explained.

When the posture control piece 3.3' is in the closed state as shown in FIG. 1 above the belt conveyor 2 moving in the direction of the arrow,
When the glass product 1 formed by the glass molding machine 20 is taken out by the take-out device 21 and dropped onto the belt conveyor 2 in the cylindrical space created by the posture control piece 3.3', the glass product 1 is It is swinging on the conveyor belt in the gap between the attitude control pieces 3 and 3', but the swing stops soon.

Next, compressed air is supplied into the air cylinder 4 through the supply/discharge pipe 1γ by an electromagnetic pulp (not shown) that operates in synchronization with a drive source such as the glass molding machine 20 or its auxiliary equipment, and the piston rod 18 is advance.

The operation of the piston rod 18 causes the bell crank 7' to rotate counterclockwise around the axis 11' via the connecting rod 6, and also rotates the bell crank 7 via the roller 15 against the tension of the spring 5. Rotates clockwise around axis 11.

Arm 1 fixed to bell crank 11.11' at the same time
0.10' and attitude control piece 3.3' are belt conveyor 2
opens outward, the glass products stopped on the belt conveyor 2 are unlocked, and the glass products are transferred downstream of the belt conveyor 2.

Immediately thereafter, compressed air is supplied into the air cylinder 4 through the supply/discharge pipe 19 so as to retract the piston rod 18 in the opposite direction to the above-mentioned operation.
is rotated clockwise around the shaft 11', and at the same time, the bell crank 7 is rotated counterclockwise around the shaft 11 by the force of the spring 50 via the roller 14, and the attitude control piece 3°3' is closed. Return to the initial state where the next glass product can be accepted.

As described above, the device of the present invention is adjacent to the glass molding machine and can be operated in synchronization with the molded product take-out device attached to the rotary drive source of the glass molding machine or the operation source of its auxiliary equipment. Receiving and sending are adapted to the molding speed, and can automatically respond to changes in molding speed due to changes in the type of molded glass product.

Furthermore, the risk of tipping over when unstable molded products with a high center of gravity, such as long and thin pots, are dropped onto a belt conveyor is completely eliminated, and the next process Since the potash is transferred at a constant interval to a desired position, the molded product can be easily and accurately handled in the next process, which has great practical benefits.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the fall prevention device of the present invention, and FIG. 2 is a side view of the device of the present invention. 1...Crow product, 2...Belt conveyor, 3...Position control piece, 4...Air cylinder 7...Bell crank, 10...
...Arm, 18...Piston rod.

Claims (1)

[Scope of utility model registration request] A continuous rod that moves forward in synchronization with the ejecting operation of a molded product ejecting device attached to a molding machine, etc., and a hollow cylindrical wall that is disposed above a moving belt conveyor and surrounds the target molded product with a gap. A pair of attitude control pieces are provided so as to be able to swing from the retracted/closed position to an expanded position opened in the horizontal direction of the belt conveyor by the advancement of the connecting rod, and these pair of attitude control pieces are provided with a position in the retracting/closing direction. The molded product taken out by the taking out device is in a retracted and closed position, comprising a spring that biases the spring force and a stopper whose position is adjustable to determine both the expansion and retracting swing limits of the attitude control piece. An overturn prevention device configured such that the connecting rod moves forward after a predetermined period of time has elapsed after it is loosely fitted into a hollow cylindrical wall of a control piece.