JPH0786045B2 - Rotary bottle inspection machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary bottle inspector suitable for inspecting glass bottles at high speed.

[0002]

2. Description of the Related Art Conventional glass bottle inspection machines are equipped with a large number of holders around an intermittently rotating turntable, and the holders are stopped at the inspection position for inspection. To remove the bottle
I used to use the entrance and exit wheels while the holder was moving. In this case, the holder is opened / closed by engaging a cam follower connected to the holder with a holder opening / closing cam fixed to the machine base and converting the movement of the cam follower into a stroke movement.

However, in the above-mentioned conventional bottle inspecting machine, since the holder is opened and closed by the stroke motion and while the holder itself is moving, an unreasonable force acts on the stroke shaft and the bush for restricting it. However, there is a problem that the life of these parts is shortened when high speed operation is performed.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and allows the holder to be opened and closed without using a stroke shaft, so that the parts are consumed even at high speed operation. It has been completed in order to provide a rotary bottle inspector capable of preventing the above problems.

[0005]

SUMMARY OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, has an L-shaped arm pivotally attached to a periphery of a turntable by a pin, and a pair of left and right holders are provided at the tip of the L-shaped arm. And a first cam roller engaging with a first grooved cam fixed to the machine base is attached to the rear end of each of them, and an arm for opening and closing the holder is pivotally attached to the pin and the rear end of the rear end is attached. The second cam roller is engaged with the second groove cam, and the arm for opening and closing the holder is provided in accordance with the change in the angle between the pin and the first cam roller and the second cam roller caused by the rotation of the turntable. It is characterized by swinging.

[0006]

The present invention will be described below in more detail with reference to the illustrated embodiments. In FIG. 1, reference numeral 1 is a rotary disk that intermittently rotates in a fixed direction, and 2 is a non-rotating cam plate fixed to a machine base. A large number of L-shaped arms 3 are pivotally mounted at regular intervals around the turntable 1 by pins 4, only one of which is shown in FIG. 1, and FIG. It is shown as a figure. In FIG. 2, the turntable 1 is omitted for easy understanding of the mechanism.

As shown in these figures, a pair of left and right holders 5a, 5b are provided at the tip of the L-shaped arm 3 with pins 6a, 6b.
Are respectively pivoted by. Also this L-shaped arm 3
A first cam roller 7 is provided at the rear end portion, and the first cam roller 7 is engaged with a first grooved cam 8 formed on the cam plate 2.

An arm 9 for opening and closing the holder is pivotally attached to the pin 4 at a height below the L-shaped arm 3. The arm 9 for opening and closing the holder has a second end on the rear end thereof.
This second cam roller with the cam roller 10
Reference numeral 10 is engaged with a second groove cam 11 formed on the cam plate 2 adjacent to the first groove cam 8 described above. A link 13 is pivotally attached to the tip of the arm 9 for opening and closing the holder by a pin 12. And this link 13
The tip of the pin 14 is attached to the bent end of the holder 5a described above.
Installed by. For this reason, as shown in FIG.
When swinging with respect to the mold arm 3, the link 13 moves the pin 14 to open / close the holder 5a about the pin 6a. In order to transmit this opening / closing motion to the other holder 5b, a roller 15 is attached to the pin 14 in this embodiment, and this roller 15 is engaged with the fork-shaped portion 16 of the other holder 5b. With this mechanism, the holders 5a and 5b on both sides can be opened and closed at the same time. The structure of this portion is also shown in FIG.

FIG. 5 is a plan view showing another embodiment. In this embodiment, the second link 17 is attached to the tip of the above-mentioned link 13.
Is attached, and by swinging the second link 17 around the pin 6a, a pair of left and right holders is attached.
5a and 5b are opened and closed. Further, along with this, the positions of the first groove cam 8 and the second groove cam 11 are interchanged, but there is no substantial difference in the operation described below.

[0010]

The rotary bottle inspecting machine of the present invention constructed as above is used by intermittently rotating the turntable 1 in a fixed direction, and the L-shaped arm 3 is pivotally mounted as shown in FIG. The pin 4 being moved naturally moves by a fixed pitch. Then, in the portions where it is not necessary to open and close the holders 5a and 5b, as shown in FIG.
As shown in FIG. 1, the angle formed by the first cam roller 7 and the second cam roller 10 with respect to the pin 4 is constant (30 in the embodiment).
The shapes of the first grooved cam 8 and the second grooved cam 11 are set so as to be 10 degrees. Therefore, in this state, the holder
5a and 5b rotate together with the turntable 1 while being closed as shown in FIG.

However, as shown in FIG. 6, the holder 5a,
At the position where 5b needs to be opened / closed, the relationship between the first groove cam 8 and the second groove cam 11 is changed to change the angle formed by the first cam roller 7 and the second cam roller 10 with respect to the pin 4. Let Specifically, as shown in FIG. 3, the holder 5
At the position where a and 5b are opened, this angle is increased (in the embodiment, increased to 45 degrees). Then, as described above, the holder opening / closing arm 9 swings clockwise with respect to the L-shaped arm 3 about the pin 4, and the link 13 moves the pin 14 to open the holder 5a about the pin 6a. The other holder
Open 5b in the opposite direction. If this angle is returned to the original position, the holders 5a and 5b will be closed again.

Thus, according to the present invention, the holder 5
Since the opening and closing of a and 5b can be performed by utilizing the swinging motion of the L-shaped arm 3 around the pin 4 and the arm 9 for opening and closing the holder, the opening and closing mechanism using the stroke motion of the conventional stroke shaft. Unlike the above, no excessive force is applied to each component even when operating at high speed. Therefore, the life of each component can be made sufficiently long.

Further, according to the present invention, by swinging the L-shaped arm 3 around the pin 4, the holders 5a and 5b are moved.
The center of can be moved in the circumferential direction of the turntable 1.
As a result, as shown in FIG. 6, the holders 5a and 5b can be moved in the opposite directions at the front and rear positions of the open position, and the holders 5a and 5b can be sufficiently opened without buffering the front and rear holders 5a and 5b. It becomes possible. This is holder 5
This is effective in the case of a deformed bottle that requires a sufficient opening width of a and 5b, and has an advantage that the opening width of the holders 5a and 5b can be secured without increasing the size of the entire inspection machine.

[0014]

As described above, in the rotary bottle inspecting machine of the present invention, the holder can be opened and closed without using the stroke shaft, so that it is possible to perform high speed operation. Also, there is an advantage that the consumption of parts can be prevented. Further, the rotary bottle inspection machine of the present invention has an advantage that the opening width of the holder can be increased without increasing the size of the entire inspection machine. Therefore, the present invention has a great contribution to the industry as a solution to the conventional problems.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a rotary bottle inspecting machine according to the present invention.

FIG. 2 is a plan view showing a main part of the first embodiment with a holder closed.

FIG. 3 is a plan view showing an essential part of the first embodiment with a holder opened.

FIG. 4 is a view on arrow AA of FIG.

FIG. 5 is a plan view showing a main part of the second embodiment.

FIG. 6 is a schematic plan view illustrating an operating state.

[Explanation of symbols]

 1 rotating plate 3 L-shaped arm 4 pin 5a holder 5b holder 7 first cam roller 8 first groove cam 9 arm for opening and closing holder 10 second cam roller 11 second groove cam

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-2-52823 (JP, A) JP-A-59-230919 (JP, A) JP-B-49-20423 (JP-B1) JP-B-40- 15534 (JP, B1) JP-B 28-744 (JP, B1)

Claims (1)

[Claims] 1. An L-shaped arm is pivotally attached to the periphery of a turntable by a pin, and a pair of left and right holders are pivotally attached to the tip end of the L-shaped arm, and a rear end thereof is fixed to a machine base. The first cam roller engaging with the grooved cam is attached, and the arm for opening and closing the holder is pivotally attached to the pin so that the second cam roller at the rear end is engaged with the second grooved cam. The first cam roller and the second cam roller generated by the rotation.
The rotary bottle inspecting machine, wherein the arm for opening and closing the holder is swung according to a change in an angle formed by the cam roller with respect to the pin.