JP2755552B2 - Turret changing device for feeding - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turret changing device for feeding in a can winding machine of a can making apparatus.

[0002]

2. Description of the Related Art A conventional turret exchanging device for feeding requires a shaft for supporting the turret to be lowered, but lowering the drive shaft is troublesome. For this reason, as shown in FIG. 4, the turret 21 is divided into two, and the turret stop is removed to remove half of the turrets A and B.
It was also suggested to take off the side.

[0003]

However, even in this case, 6-
Not only must eight setscrews 22 of the turret be removed, but also the pusher 24 of the lid 23 provided on the turret 21 hits the guide rail 25 of the lid. Just had to lower. For this reason, it is necessary to provide a connection key 28 and a key groove having a play in the circumferential direction between the flange 26 for stopping the turret 21 and the drive shaft 27, and furthermore, the flange 26 is provided with the key. 28
Requires a clamping bolt 29 for tightening. If the tightening position is incorrect, the timing is shifted.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a nut 4 is screwed into a screw 3 provided at a lower end of a flange 2 provided integrally with a drive shaft 1. Without moving the flange 2 between the upper end surface of the nut 4 and the flange 2, the center of the turret 10 divided into a plurality is inserted from the side without moving the flange 2, and positioning members A 11, 11 for determining the circumferential position on the flange 2, The power transmission positioning members B12, 12 to be engaged when the nut 4 is tightened are implanted,
The positioning members A11, 11 are engaged with the guide grooves 13, 13 opened toward the center of each of the divided turrets, and the power transmission positioning member B is connected to the holes 1 of the divided turrets.
This is a turret exchange device for feeding, which is not engaged when the turret 10 is inserted into the sides 4 and 14 from the side, but is engaged when the nut 4 is tightened after the insertion.

[0005]

When the nut 4 is rotated, the nut 4 and the cylinder 7 are lowered, whereby the divided turret 10 is also lowered,
The power transmission positioning members B12, 12 have through holes 14, 14,
14 and 14, only the lower ends of the positioning members A11, 11 are engaged with the guide grooves 13, 13, and the pusher 18 is also lowered to a position where it is not engaged with the guide rails 16, 16. Therefore, the positioning members A11,11 and the guide grooves 13,13
The turret 10 divided by the sliding operation can be slid accurately to the side and removed.

[0006]

FIG. 1 is a longitudinal sectional view of an essential part of a preferred embodiment of the present invention at the time of tightening. A nut 4 is provided on a screw 3 provided at a lower end of a flange 2 provided integrally with a drive shaft 1. Screw together.
A cylinder 7 having an engagement protrusion 6 of a ratchet wrench 5 is fixed to the lower surface of the nut 4 with a screw 8, and a stopper screw 9 for preventing the nut 4 from dropping is screwed downward to the lower surface of the drive shaft 1.

[0007] Between the upper end surface of the nut 4 and the flange 2, FIG.
As shown, the centers of the halves 10A, 10B of the turret 10 are inserted from the side, and the lower surface of the flange 2 is placed on a pair of opposing positioning members A (for example, long pins) 11,
11 and a power transmission positioning member B (for example, two pairs of short pins) 12, 12, 12, 12
11, 11 extend to the side of the halves 10A, 10B and engage with guide grooves 13, 13 opened toward the center, and the power transmission positioning members B12, 12, 12, 12 are connected to the halves 10A, 10B. With the through holes 14, 14, 14, 14. In the drawing, reference numeral 15 denotes a lid fed by a turret;
Is a guide rail for feeding the lid 15, 17 is a can, 18 is a pusher of the lid 15 provided on the turret 10, 19 is a holding rod for preventing rotation when tightening the nut, and 20 is a nozzle.

Next, the operation of this apparatus when the turret is replaced will be described. When the ratchet wrench 5 is engaged with the projection 6 and turned in a direction to remove the nut 4, the nut 4 and the cylinder 7 are lowered, and the lower surface of the nut 4 abuts against the stopper screw 9 as shown in FIG. As a result, the half 10A of the turret 10
10B also descends, the power transmission positioning members B12,12 escape from the through holes 14,14,14,14, and only the lower ends of the positioning members A11,11 engage with the guide grooves 13,13,
The pusher 18 also descends to a position where it does not engage with the guide rails 16. Therefore, by sliding between the positioning members A11, 11 and the guide grooves 13, 13, the half portions 10A, 10B of the turret 10 can be accurately slid to the side as shown by arrows in FIG. When the halves 10A and 10B of the turret 10 are mounted, the operation exactly opposite to the above may be performed. In the above embodiment, the turret 10
Is divided into two parts, but may be divided into plural parts such as three parts. Further, as the positioning member A, a key groove or the like may be used instead of the pin, and the number thereof may be arbitrary.

[0009]

As described above, according to the present invention, the turret can be replaced. However, according to the present invention, the mounting bolt of the turret is not required, and the key and the keyway for coupling between the drive shaft and the flange are used. Therefore, the tightening split bolt and the tightening position adjustment, that is, the timing adjustment at the time of tightening are also unnecessary, and the turret can be replaced in less than half of the conventional time.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a nut according to an embodiment of the present invention when the nut is tightened.

FIG. 2 is a plan view of a central portion of the turret.

FIG. 3 is a longitudinal sectional view showing a state where the nut is loosened.

FIG. 4 is a longitudinal sectional view of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drive shaft 2 Flange 3 Screw 4 Nut 10 Turret 11 Positioning member A 12 Power transmission positioning member B 13 Guide groove 14 Through hole

Claims (1)

(57) [Claims] A nut is screwed into a screw provided at a lower end of a flange provided integrally with a drive shaft, and a center of a plurality of divided turrets is moved between an upper end surface of the nut and the flange without moving the flange. Is inserted from the side, and a positioning member A for determining the circumferential position and a power transmission positioning member B to be engaged when the nut is tightened are implanted in the flange, and the positioning member A is located at the center of each of the split turrets. The power transmission positioning member B does not engage when the turret is inserted from the side into each hole of the divided turret, but engages when the nut is tightened after insertion. Turret changing device for feeding.