JPH0318397Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feeding device for supplying can lids to a can lid seaming machine that seams the can lids onto can bodies.

Conventionally, can lids are supplied to a can lid cinching machine by storing a large number of can lids in a stacker in a stacked or aligned state vertically or diagonally downward, and then taking them out one by one from the lower end of the stacker. It was on. However, when supplying a large number of stacked can lids like this, the entire load of the can lid is applied to the can lid located at the lowest level, which causes friction with the stacker and guide rail that serve as the supply route for the can lid. There was a risk that the can lids could not be cut smoothly due to the increase in the number of can lids, or that the outer periphery of the can lid would be scraped and chips would be generated, and the chips would enter the cans as they were. In particular, in the case of an automatic can lid supply device such as a disc closer, the can lid supply path is redundant, which is a major problem.

The present invention reduces the load on the can lid from the lid cutting part, making the lid cutting operation smoother, and also effectively prevents damage to the can lid and generation of chips.The attached drawings are shown below. An embodiment of the present invention will be specifically described with reference to the drawings.

Fig. 1 is an overall side view of one embodiment of the present invention;
Figures 3 and 3 are side and front views of the main parts.
11 is a lid cutting device, and 12 is a stacker 12 for supplying can lids to the lid cutting device 11. The upper end of a stacker 12 is connected to a downwardly inclined supply path 2, and a large number of can lids A are arranged on the supply path 2. They are lined up and gradually transferred to the stacker 12 by their own weight. This supply path 2 is the third
As shown in the figure, it consists of a long, groove-shaped tray bent into an "M" shape, and a supply device 1 is disposed midway through the supply path 2.

This feeding device 1 consists of a brake mechanism that decelerates the transfer of the can lid due to its own weight, a stopper mechanism that intermittently stops the transfer of the can lid due to its own weight, and a detector that sends an activation signal to the stopper mechanism. The brake mechanism consists of a U-shaped base plate 4 which is vertically movably attached to the supply path 2 by a hinge 9, a block 5 attached to the lower surface of the base plate 4, and a block 5 attached to the base plate 4 on the opposite side of the hinge 9. The weight of the weight 7 causes the block 5 to come into contact with the can lid A on the supply path 2 from above. That is, the weight 7 is slidably attached to a horizontal bar 13 extending perpendicularly from a bracket 10 attached to one side of the base plate 4, and by adjusting its position with the horizontal bar 13, it can be used as a lever with the hinge 9 as a fulcrum. According to the principle, the contact force of the block 5 to the can lid A is adjusted, the transfer speed due to the can lid's own weight is reduced, and the can lid A is transferred forward to the supply path 2 while receiving an appropriate braking force. . In this case, the block 5 that comes into contact with the can lid A is made of an elastic material such as rubber, synthetic resin, or leather so as not to damage the can lid. A contact surface is formed.

The stopper mechanism consists of a cylinder 6 mounted on a support plate 14 fixed to the outside of the supply path 2, and an engagement rod 8 attached to the tip of the rod of this cylinder 6. It is inserted into a vertically long slit 10a formed in the bracket 10 and moved up and down within the slit 10a by the operation of the cylinder 6. And the engaging rod 8
When the block 5 engages with the lower end of the slit 10a, the base plate 4 is pulled down and the contact force of the block 5 against the can lid A increases, thereby stopping the can lid A from being transferred by its own weight. The operation of this stopper mechanism is carried out by a detector 3 shown in FIG. It is attached to an extending mounting plate 15. This detector 3 detects whether or not there is a can lid on the supply path 2 below the detector 3, and as described later, if there is a can lid on the supply path 2, it activates the stopper mechanism. The transfer row of can lids is separated, but if there is no can lid, the operation of the stopper mechanism is stopped and the can lids are transferred by the brake mechanism.

The stopper mechanism may not use a cylinder but may use a rack and pinion operated by a motor, or the block may abut the can lid from the side.

Next, a case in which can lids are fed to a lid cutting device using the feeding device of the present invention as described above will be explained with reference to FIGS. 4 to 6.

In Fig. 4A, the can lids are lined up in the supply path 2, but since the can lid is below the detector 3, the signal from the detector 3 causes the engagement rod connected to the cylinder 6 as shown in Fig. 4B. 8 is moved downward, and as a result, the contact force of the block 5 increases, and the movement of the can lid A behind the block 5 is stopped. . Therefore, the can lid B in front of the block 5 is transferred by its own weight, and the can lid A and the can lid B are separated, forming a gap between them where no can lid exists. For this reason,
The length of the row of can lids on the lid cutting device side is short, and the load of the can lids placed on the lowest row is reduced. FIG. 5A shows a state in which the gap is detected by the detector 3, and the engagement rod 8 moves upward as shown in FIG. The pressing force is released and the block 5 is brought into contact with the can lid by the brake mechanism. Therefore, the can lid A behind the block 5 is gradually moved on the supply path 2 by the brake mechanism, and after coming out of the position of the block 5, it is moved further than the block 5 as shown in FIG. 6A. The can lids catch up with the can lids B in front, and a row of can lids is formed in front of the block 5. When this row of can lids becomes long and there is a can lid below the detector 3, the engaging rod 8 moves downward as shown in Fig. 6, the stopper mechanism is activated, and the row of can lids is separated as described above. The same is done.

According to the present invention explained above, the can lids lined up on the supply path are separated by the stopper mechanism, forming a gap in the row of can lids, so that the load of all the can lids is applied to the can lid in front. Never. Therefore, the frictional force against the bottom can lid being cut off is reduced, making it possible to prevent damage and generation of chips, thereby improving the quality of canned goods.
Moreover, this feeding device has a simple structure and can be easily attached to an existing device, so it has the effect of improving its versatility.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of one embodiment of the present invention;
Figures 4 and 3 are partially broken side views and front views of the main parts, Figures 4A, 5A, and 6A are side views of the operating state, Figures 4B and 5B. , FIG. 6B is an enlarged front view of the main parts thereof. DESCRIPTION OF SYMBOLS 1... Supply device, 2... Supply path, 3... Detector, 4... Base plate, 5... Block, 6
... Cylinder, 7 ... Weight, 8 ... Engagement rod, 9 ...
Hinge, 10... Bracket, 11... Lid cutter, 12... Stacker, 13... Horizontal bar, 14...
Support plate, 15...Mounting plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A groove-shaped supply path in which can lids are arranged and transported by their own weight along a downward slope, and a large number of can lids are arranged and lined up in the longitudinal direction on the supply path, An elastic block is disposed on the upper edge of the can lid, and the block contacts the upper edge of the can lid with a predetermined force due to the gravity of an attached weight, thereby decelerating the moving speed of the can lid. a brake mechanism; a detector disposed on the supply path for detecting the presence or absence of a can lid; and a can lid detection signal from the detector that pulls the block toward the center of the can lid to close the can on the block. A can lid feeding device comprising: a stopper mechanism that increases the contact force against the upper edge of the lid and divides the transfer row of the can lids.