JPS6143684Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a stop device used in a sealing machine for cans, etc.

The sealing machine that implements this idea has a pair of left and right conveyors, a lifting and rotating pedestal installed between the conveyors, and a container on which the cans, etc. that are pushed up by the pedestals are placed. It consists of a holding member that presses the top surface and rotates with the can, etc., and a tape sticking device that sticks the sealing tape to the required part of the rotating can etc. while being sandwiched between the holding member and the pedestal. .

In such a sealing machine, when the cans, etc. that have been carried on the left and right conveyors reach the pedestal located between the conveyors, they are stopped by some kind of stop device, and then the pedestal is raised. Then, the can or the like on the conveyor is lifted and the can or the like leaves the conveyor, and the upper part of the can or the like is held down by the holding member and begins to rotate.

In the above-described apparatus, if the tape is attached to a can by rotating it approximately one and a half turns, the beginning and end of the tape will overlap. However, the pedestal is 1
If you attach a stopper piece as a stop device to one end of the cradle, even if the holder is initially placed at the front end of the pedestal, the holder will move to the rear end after one and a half rotations. , the next can, etc. cannot be moved onto the pedestal. To achieve this, it would be best to install movable receiving pieces at both ends of the pedestal and use an electromagnet to move them up and down so that only the front receiving piece protrudes, but the structure would be complicated and the control circuit would also be complicated. becomes.

The purpose of this invention is to solve the above-mentioned drawbacks of the conventional device by mechanically raising and lowering the front and rear receiving pieces using a very simple mechanism.

This invention will be described in detail below based on embodiments shown in the accompanying drawings.

In the figure, 1 is a pair of left and right conveyors, in the case shown, a support plate is attached to the link of a roll chain, 2 in Figure 1 is a support stand that supports the carrier side of the conveyor 1, and 3 is a return These are support stands that support the sides, and both are fixed to the frame.

Reference numeral 4 denotes a pedestal, and its planar shape is long from front to back as shown in FIG. 3, and is wide enough to fit between both conveyors 1. This pedestal 4 is fixed to the upper end of an elevating rotation shaft 5, and a spline is provided on the outer periphery of this shaft 5 as shown in FIG.

Reference numeral 6 denotes a bearing fixed to the frame, and the shaft 5 is rotatably fitted into a rotary cylinder 7 which is rotatably attached to the bearing 6, and is spline-coupled, so that the rotation of the rotary cylinder 7 is caused by the rotation of the shaft. 5, but axis 5
can be freely raised and lowered relative to the rotary cylinder 7.

Reference numeral 8 in FIG. 3 indicates a pair of guide rods fixed on the rotary cylinder 7, and these rods 8 are inserted into a pair of vertical holes 9 provided in the pedestal 4.
is attached so that it can slide freely.

There are notches 1 at both ends of the pedestal 4 as shown in Figure 3.
0 is formed, and a receiving piece 11 is installed in each of these notches 10. This receiving piece 11 is fixed to a shaft 12, and both ends of this shaft 12 are rotatably supported by bearings provided on both sides of the notch 10.

Further, a diagonal piece 13 is fixed to the lower side of each shaft 12, and both ends of a connecting rod 15 are rotatably connected to each piece 13 by a shaft 14, so that the center of both shafts 14 and the both shafts are rotatably connected to each piece 13. 12 so that the straight line connecting the centers forms a parallelogram, and when one receiving piece 11 stands vertically and protrudes from the top surface of the conveyor 1, the other receiving piece 11 is inward, that is, the mating receiving piece. Falling towards 11,
At this time, the receiving piece 11 is placed below the top surface of the conveyor 1.

Further, a stopper 16 is fixed to the pedestal 4 to stop the vertically standing holder 11 from falling any further outward.

This invention has the above configuration, and its operation will be explained below.

Figures 2 and 3 show a state in which a can 17, which has been moved with both sides placed on the left and right conveyors 1 traveling in the direction of the arrow, has come onto the pedestal 4 and is stopped by the front holder 11. It shows.

As mentioned above, when a detector such as a photoelectric type or a lit switch detects that the can 17 is stopped on the pedestal 4 by the holder 11, the lifting mechanism of the shaft 5 is activated and the pedestal 4 is moved together with the shaft 5. The pedestal 4 rises completely onto the conveyor 1, the holding member descends from above, and the shaft 5 begins to rotate with the top and bottom of the can 17 being sandwiched between the holding member and the pedestal 4. The rotary cylinder 7 spline-coupled to the cylinder 7 also rotates together with the can 17, and the pedestal 4 whose vertical hole 9 is fitted into the guide rod 8 of the cylinder 7 also begins to rotate together with the can 17.

Also, just before the can 17 starts rotating as described above,
A tape pasting device (not shown) is activated, and its pasting roller sticks the end of the adhesive tape to a predetermined portion of the can 17, so that when the can 17 starts rotating, the tape sticks to a predetermined portion of the can 17. ie, at the seam between the main body and the lid of the can 17.

In this way, while the pedestal 4 rotates once and continues to rotate, the cutter of the tape applicator works to cut the tape, and the end of the cut tape is completely stuck to the roller can 17 of the tape applicator. After the pedestal 4 is loaded, the pedestal 4 makes one and a half rotations, an appropriate detector is activated, the rotation stops, and then the shaft 5 descends, and the pedestal 4 rotates one and a half times.
The can 17 is placed on the conveyor 1 and separated from the pedestal 4.

As mentioned above, the pedestal 4 has made one and a half rotations from the beginning, so when it descends, the vertical holder 11 will be at the rear, and the front holder 11 will be tilted down.
Cans 17 are transported by conveyor 1.

When the next can is transferred by the conveyor 1, the pedestal 11, which stands vertically behind the pedestal 4, is pushed forward by the can 17. When the rear receiving piece 11 falls forward in this way, the connecting rod 15 moves rearward, vertically standing the front receiving piece 11, and the conveyor 1
Stop the can 17 that was sent. The subsequent action is the same as the previous one.

As described above, this device is located between the pair of left and right conveyors 1, and the movable receiving pieces 11 provided at both ends of the receiving stand 4, which moves up and down and makes one and a half rotations, move the cans 17 onto the receiving stand 4. The rear receiving piece 11 is automatically operated by
falls down and the front receiving piece 11 rises,
The structure for performing this action is the shaft 1 of the front and rear receiving pieces 4.
The structure consists of simply connecting pieces 13 fixed to the lower side of 2 with a connecting rod 15, and providing a stopper 16 on the pedestal 4 to prevent each receiving piece 11 from falling outward from the vertical position. It has the advantage of being extremely simple and reliable.

[Brief explanation of drawings]

Fig. 1 is a partially longitudinal front view showing an embodiment of this invention, Fig. 2 is an enlarged longitudinal sectional side view of the main parts of the same, and Fig. 3
The figure is a plan view of the same as above. 1...Conveyor, 4...Base, 11...Base, 1
2,14...shaft, 13...piece, 15...connection, 1
6...stoppa, 17...can.

Claims (1)

[Scope of utility model registration request] A pair of left and right conveyors support the bottom of both sides, and the cans and other objects are stopped on a fixed position on a lifting and rotating pedestal.
This pedestal is raised to push up the can, etc. on the conveyor, and the holding member descending from above and the pedestal sandwich the top and bottom of the can and rotate it, while the tape provided on the side of the pedestal is In a sealing machine for cans, etc., in which a pedestal and a holding member are returned to their original positions after pasting tape to a desired part of a can, etc. using a pasting device, etc., there is a holder that can be freely raised and lowered near both ends of the pedestal. Each piece is provided at the bottom of each receiving piece, and the pieces provided at the bottom of each receiving piece are connected by a connecting rod, so that when one receiving piece falls in the direction of the rotation center of the pedestal, the other receiving piece stands up on the conveyor. A stop device for sealing cans, etc., configured as shown in FIG.