JPH0735633Y2 - Turret device in seamer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a turret device capable of responding to a change in can height for winding a can in a seamer for tightening the can without performing replacement work of a turret or the like. Regarding

(Prior Art) Conventionally, each turret of a seamer is arranged as shown in FIG. 2, and a can lid conveyed to a can conveyed from a supply conveyor 20 by a cover feed turret 21 and a can feed turret 22. The center of the can and the lid is centered, and the can with the can lid fitted on the half mold turret 23 is supplied. In the half mold turret 23, the rotation of the turret causes the can to revolve around its own axis, and double winding is performed in the meantime. The cans that have been wound are transferred to the discharge conveyor 25 by the discharge turret 24 and transported to the next process. These turrets have an appropriate thickness and are formed with pockets 26 to 29 at equal intervals on the outer peripheral portion, the can body is engaged with the pockets, and the can is moved along the transfer surface except for the half mold turret. And push it forward. Therefore, it is difficult to feed the can smoothly unless the engaging position between the turret and the can body is at an appropriate height. Therefore, when winding cans of different heights and diameters with a single seamer, the so-called changing the height position of the turret along with the replacement of the seaming roll and the adjustment of the seaming head height each time the can type is changed. I had to change the mold. Conventionally, the mold changing work for changing the can height is performed by replacing the can feed turret and the cover feed turret with those having a thickness suitable for the can height, or by providing a hakama at the pocket extension portion of the turret.
Either the hakama is replaced with a suitable thickness, or the spacer for adjusting the height position of the turret is replaced with a suitable height. Since these turrets are heavy in weight and require delicate adjustment work in a narrow space, it requires a great deal of force and skill and takes a long time of about 60 minutes. Have a heavy mental burden. Therefore, not only the work efficiency is poor, but also adjustment troubles frequently occur due to the skill level, and improvement thereof is desired. In particular,
Due to the recent diversification of can types, high-mix, small-lot production has become possible, and frequent mold changing work has become a major bottleneck in can-wrapping work. In addition, the conventional mold change requires a turret, hakama or spacer having different sizes depending on the type of can as described above, and it is a current situation that the place for storing the replacement parts is difficult.

(Problems to be Solved by the Invention) The present invention was created in order to solve the above-mentioned problems of the mold changing work associated with the change of the can height of the seamer. An object of the present invention is to provide a turret device capable of automatically responding to a change in can height only by raising and lowering a seamer head without replacement or adjustment.

(Means for Solving the Problems) A turret device in a seamer of the present invention which solves the above problems includes a drive sleeve driven to rotate, a lower turret hub fixed to the drive sleeve, and a can feed to the lower turret hub. A lower turret mounted so as to have a constant height above the surface, a turret shaft fitted to the drive sleeve so as to be adjustable up and down via a holding pressure adjustable bush, an upper turret hub fixed to the turret shaft, It has an upper turret attached to the upper turret hub so as to be located above the lower turret, and has a guide post that communicates the upper turret and the lower turret, and loosens the holding pressure of the bush to the drive sleeve. The turret shaft can be moved up and down. With this, the distance between the lower turret and the upper turret can be adjusted according to the height of the can.

(Operation) Separate the turret into the upper turret and the lower turret, the upper turret is attached to the turret hub fixed to the turret shaft, and the lower turret is attached to the turret hub fixed to the sleeve of the turret drive. When the height of the seaming head is adjusted according to the can height during work, the turret shaft moves up and down naturally, and the upper turret also goes up and down naturally, and the lower turret is fixed at a certain height from the transport surface. Is adjusted according to the can height. At this time, the upper turret is guided by the guide posts to move up and down, so that the center of the pockets of both turrets will not be displaced.

Therefore, the work involved in changing the can height does not require replacement work such as the conventional turret, but simply tightens the screws to integrally tighten the lower turret and turret shaft. Can be shortened to Moreover, since there is no adjustment, even an unskilled person can easily make the adjustment and no adjustment error occurs.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment of a can feed turret of a seamer according to the present invention. In the figure, reference numeral 1 denotes a turret shaft, which is rotatably supported by a frame 3 of a seamer, and a drive gear (not shown) is fixed below the turret shaft via a lower drive sleeve 2 to be rotationally driven. The transmission of the rotational force between the drive sleeve and the turret shaft is performed via a keyless lock bush as described later, and the holding pressure with the keyless lock bush is weakened, so that the turret shaft is axially moved with respect to the drive sleeve. It is possible to move.
The top of the turret shaft 1 is rotatably supported by the seamer head frame 5 and is moved up and down as the frame 5 is moved up and down. Reference numeral 6 is a middle drive sleeve fixed to the top of the lower drive sleeve 2 by a bolt 7, and 8 is an upper drive sleeve connected to the top of the middle drive sleeve by a bolt 9. A keyless lock bush 10 is provided on top of the middle drive sleeve.
And the screw 11 is loosened, the holding pressure between the turret shaft 1 and the middle drive sleeve 6 is weakened, and the turret shaft 1 can be moved up and down with respect to the lower drive sleeve 2. Reference numeral 12 denotes a lower turret hub fixed to the top of the upper drive sleeve, and the lower turret 13 is fixed to the hub.

15 is an upper turret, and a key is attached to the turret shaft 1.
It is attached to the upper turret hub 17 which is fixed by 16. Reference numeral 18 is a guide post whose top is fixed to the upper turret and whose lower extension extends through the lower turret hub 12 so that the upper turret and lower turret pockets 19 ₁ and 19 ₂ do not slip.
It guides the lifting and lowering of the upper turret.

The can feed turret device of this embodiment is configured as described above, and when changing the mold by changing the height of the can, the screw 11
Is loosened to disengage the bush 10 and the turret shaft 1 can be moved up and down with respect to the lower drive sleeve 2. When the seamer head is moved up and down according to the can height, the turret shaft 1 fixed to the seamer head frame 5
Also moves up and down in synchronization, and the upper turret 15 fixed to the turret shaft 1 also moves up and down accordingly. As a result, the upper turret 15 automatically changes to the lower turret 13
Located at a predetermined distance from the can height, and the cans fed on the canfeed surface FL are placed in the pockets of both turrets.
19 ₁ and 19 ₂ come to engage at an optimum height. When the setting is completed, the screw 11 is tightened to fix the turret shaft 1 to the middle drive sleeve 6 via the bush 10. In this state, the sleeves 2, 6, 8, the lower turret 13, the turret shaft 1, and the upper turret 15 are integrated in a rigid connection state, and rotate integrally when the drive sleeve is rotationally driven by the transmission from a drive source (not shown). Then, both turrets rotate in synchronism, hold the can in the pocket and push it to the next half mold turret.

The turret device of the present invention is not limited to the above embodiment, and various design changes can be made within the scope of the claims. For example, in the above embodiment, the drive sleeve is divided into three pieces, but this is because the conventional turret can be easily improved, and it is not always necessary to divide the drive sleeve into three pieces. Further, it goes without saying that the turret of the present invention can be applied not only to the can feed turret but also to the cover feed turret.

(Effect) The turret device of the present invention has the above-mentioned configuration.
Since there is no need to replace the turret when changing the can height, the work for changing the can height can be drastically shortened from 60 minutes to about 6 minutes. Moreover, since there is no adjustment, even an unskilled person can easily make the adjustment and no adjustment error occurs. Further, as the replacement type with the same can diameter, only one type has been used instead of two or three types in the past, and there is no need to worry about the storage location. In addition, since it can handle all can heights, it is not necessary to prepare a replacement mold every time a new product is manufactured, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment of a turret device in a seamer of the present invention, and FIG. 2 is a turret arrangement view in a conventional seamer. 1: Turret shaft, 2: Lower drive sleeve, 3: Seamer frame, 5: Seamer head frame, 6: Middle drive sleeve, 8: Upper drive sleeve, 12: Lower turret hub, 13: Lower turret, 15: Upper turret,
17: Upper turret hub, 18: Guide post, 19: Pocket

Claims (1)

[Scope of utility model registration request] 1. A drive sleeve which is rotationally driven, a lower turret hub fixed to the drive sleeve, a lower turret mounted to the lower turret hub so as to have a constant height above a can feed surface, and retained by the drive sleeve. A turret shaft fitted so as to be adjustable up and down via a pressure adjustable bush, an upper turret hub fixed to the turret shaft, an upper turret attached to the upper turret hub so as to be located above the lower turret, Having a guide post that communicates the upper turret and the lower turret, by loosening the holding pressure of the bush, and by moving up and down the turret shaft with respect to the drive sleeve, between the lower turret and the upper turret The spacing is adjusted according to the can height. Turret device according seamer, characterized in that the the can.