JPS5840080Y2 - Grip member for opening or closing device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved structure of a gripping member that is attached to grip the cap of the screw stopper in a device for opening or closing a screw stopper of a bottle. .

Conventionally, in this type of device, for example, in a cap opening device as shown in FIGS. Later, supply side star wheel 3
The receiver is guided along the guide member 4 by the guide member 4, and placed on the rotary table directly below the rotating body 5.

Next, an air chuck 6 is lowered onto the container on the rotary table from a rotary body 5 that rotates in synchronization with the rotary table, and grips the container's cab. The cap is opened by rotation, and the opened cap is released from the air chuck 6 and thrown into the hopper 8 through the chute 7.

Subsequently, as the air chuck 6 rises, the container is transferred from the rotary table along the guide member 4 to the conveyor 1 again by the discharge side star wheel 9 and sent to the next process.

In this way, the carrier chuck 6 is rotated by itself as it moves up and down, but the mechanism of the cap gripping part of the air chuck 6 has conventionally been made of a soft elastic material fitted inside the chuck case as shown in FIG. The gripping member 10 is equipped with a compression disk that pressurizes and deforms the gripping member 10 by receiving the acting force of compressed air, and the cap is inserted into a cap insertion opening 11 formed at the center of the gripping member 10. When the cap is pressed, the gripping member 10 is deformed under pressure by the compression disk, thereby gripping and holding the cap.

However, in such a conventional gripping member 10, since the gripping member 10 needs to be deformed under pressure by the compression disk, the gripping member must be made of a sufficiently soft elastic material to be able to grip the cap. As a result, the gripping member is severely worn and deteriorated and cannot withstand long-term use.Furthermore, if the cap inserted into the cap insertion opening 11 is wet with water, etc., the gap between the gripping member 10 and the cap may deteriorate. Slippage occurs in the cap, making it impossible to tighten the cap to the container with the required force or to remove the cap from the container.

The present invention was developed in view of these drawbacks, and the present invention will be explained below with reference to the embodiment shown in FIG. 4.
Reference numeral 2 denotes a gripping member made of a ring-shaped elastic body as in the conventional case, and a cap insertion opening 13 is provided in the center of this gripping member 12.
is formed.

In the present invention, on the inner peripheral surface of the cap insertion opening 13, three hard members 14 having excellent wear resistance, such as steel or hard elastic material, are distributed at equal intervals on the insertion side of the cap. In addition, the inner surface thereof is flush with the inner circumferential surface of the cap insertion opening 13, but the present invention is not limited to this, of course.

Therefore, in the present invention, the cap insertion port 13
When the cap is inserted into the cap and the gripping member 12 is pressurized and deformed by a compression disk (not shown) as in the conventional case, the cap gripping force is concentrated on the member 14 which has higher rigidity than the main body of the gripping member 12. , the cap is reliably gripped by this member 14.

In this case, the member 14 has high abrasion resistance, so even if it is repeatedly used for a long period of time, it does not suffer from severe wear and deterioration unlike conventional methods, and can withstand long-term use. Even if the cap is wet, the gripping force concentrated on the hard member 14 can reliably grip the cap, so there is less risk of slipping between the cap and the cap, making it easier to open or open the cap. Closing can be performed reliably.

As mentioned above, the gripping member according to the present invention is expected to have the effect of being able to significantly improve its durability compared to the conventional one, and also being able to reliably open and close the cap. It's something you get.

[Brief explanation of drawings]

Figures 1 and 2 are a plan view and a front view of the cap opening device, Figures 3 a and 1) are a plan view and a sectional view of a conventional gripping member, and Figures 4 a and b are the present invention. FIG. 2 is a plan view and a cross-sectional view of an embodiment of the present invention. 12...Gripping member, 13...Cap insertion opening, 14...Member.

Claims (1)

[Scope of utility model registration request] In a gripping member of a rotary stopper opening or closing device consisting of a ring-shaped elastic body with a cap insertion opening formed in the center,
A gripping member for a cap opening or closing device, characterized in that hard members having wear resistance are distributed and arranged on the inner circumferential surface of the cap insertion opening.