JPH0621841Y2 - Filler discharge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a filling material discharging device for an automatic packaging machine for food or the like.

(Prior Art) FIG. 4 shows a conventional device, in which a container 1 containing a weighed or arbitrarily determined amount of filler is sequentially conveyed by a belt conveyor 2, While the containers 1 are stopped by the operation of the locking bars 4a and 4b, they are introduced into the guide cylinders 3 one by one and inverted and dropped, and the fillings in the containers are discharged, and a bag prepared via the hopper 5 ( Or can) 6 is charged and filled.

On the other hand, the empty container after discharging the filler received by the stopper plate 7 slides down on the guide plate 9 by operating the cylinder 8 to incline the guide cylinder 3, and discharge means such as another belt conveyor 10 or the like. It is carried out by the outside and collected.

(Problems to be Solved by the Invention) In the above-mentioned conventional technique, the container 1 which is inverted and drops in the guide cylinder 3 is provided with the guide cylinder 3 and the stopper plate 7 provided at the lower portion.
The through hole 7a formed at the center of the hole is received, and the impact is used to efficiently discharge the filling material inside.

However, the posture of the container 1 that is dropped is not always stable, the discharged filler does not completely pass through the through hole 7a and remains on the peripheral edge, and the peripheral edge of the container 1 is the stopper plate 7.
If it collides with the peripheral edge of the through hole 7a in a biased state, there is a problem that the filler is scattered around.

The present invention is intended to provide a device capable of solving the above problems.

(Means for Solving the Problems) The present invention provides a guide cylinder for reversing and dropping a container filled with an object to be filled so as to be swingable at a constant angle upward from a vertical position by horizontal operation of a cylinder, and at the bottom of the guide cylinder. A pair of locking claws are swingably provided at left and right symmetrical positions on the periphery,
Each locking claw has a lower tip portion formed into an L-shaped key body, and the tip portion of each key body is constantly projected into the guide cylinder by the pressing force of the spring. A part of the peripheral edge is locked, and a cam plate with which a roller attached to the upper end of the locking claw abuts is provided at the left and right opposite positions of the stroke path where the guide cylinder swings upward with a constant inclination angle. A structure in which the key body of each locking claw escapes to the outside of the guide cylinder as the roller comes into contact with the cam plate due to the swinging movement of the cylinder, and the reversal container in the guide cylinder falls off the key body of the locking claw. It is characterized by what was done.

(Operation) The container falling in the guide cylinder is received by the L-shaped key body of the pair of left and right engaging pawls protruding into the cylinder at the lower end edge of the guide cylinder, and at that time, the filling object in the container moves downward. It is thrown into the placed bag.

Next, the guide cylinder swings upward by a constant tilt angle by the cylinder operation from the outside. At that time, the L-shaped key body of the locking claw escapes to the outside of the guide cylinder, so that the container inside the guide cylinder moves outward. Will be discharged to.

(Example) FIG. 1 is an overall view of the apparatus, in which a container 1 is sequentially conveyed by a belt conveyor 2. Reference numeral 3 is a guide tube 4a, 4a, 4a which can swing upward from a vertical position at a constant inclination angle.
Reference numeral b is a locking bar, which is configured to temporarily stop the container 1 filled with the material to be filled and alternately guide it into the guide 3 cylinder.

The above configuration is the same as the conventional one.

By the way, in the present invention, the bracket 11 is attached integrally with the guide cylinder 3 at symmetrical positions on the lower peripheral edge of the guide cylinder 3, and the pair of locking claws are symmetrically used by using the shaft pin 12 with respect to the bracket 11. 13a and 13b are swingably provided.

Here, the locking claw has an L-shaped key body p at the lower end with the shaft pin 12 as a boundary.
In addition, the tip of the key body P is pressed by a spring 15 between it and a screw rod 14 attached to the bracket 11 so that the tip of the key body P always protrudes a little toward the inside of the guide cylinder 3. On the other hand, the upper end thereof is in a state in which the roller 16 is rotatably supported.

In addition, reference numeral 17 denotes a cam plate with respect to a device-side frame 18 to which a cylinder 8 for swinging the guide cylinder 3 is attached,
It is attached via a support column 29 at a fixed height position (a relational position where the guide tube is a stroke path that swings upward at a fixed inclination angle).

FIG. 2B is a plan view from above the cam plate 17,
Since the roller 16 of the one-dot chain line is slid from a to b along the cam surface m, the reversal container, which will be described later, is discharged at the position b.

FIG. 3 is an explanatory view of the operation of the above-described structure, and FIG. A shows a state in which the container 1 that has fallen over inside the guide tube 3 is received, that is, a member protruding inward of the guide tube 3. Claw 1
The peripheral part of the container 1 is partially stopped by the key bodies p of 3a and 13b.

In the present invention, the container 1 which falls inside the guide tube 3 in the reverse direction is completely discharged in the above state. Then, the cylinder 8 is actuated so that the guide tube 3 is directed obliquely upward. Each of the rollers 16 at the upper ends of the locking claws 13a and 13b is brought into contact with the cam plate 17 when it is rocked, that is, the roller 16 moves the inclined surface m of the cam plate 17 as shown in FIG. By sliding, the lower ends of the locking claws 13a and 13b are rotated clockwise or counterclockwise against the springs 15, respectively, so that the key bodies p of the locking claws 13a and 13b are retracted outward. To unlock container 1 from container 1
Will be dropped towards the discharge conveyor 10.

(Effect of the Invention) The present invention is configured as described above, and since the reversing container is simply received by the key body p of the locking claw in the guide cylinder, the discharge of the filling material in the container is performed by the conventional device. Complete without sticking to the periphery of the stopper plate etc.
In addition, it will be performed cleanly, and it will greatly contribute to the optimization of the filling container for the packaging bag and the improvement of work performance.

[Brief description of drawings]

FIG. 1 is an overall view of the device of the present invention, FIG. 2 is a plan view of a cam plate, FIGS. 3A and 3B are explanatory views of operation, and FIG. 4 is a conventional device. 1 ... Container, 2 ... Belt conveyor 3 ... Guide tube, 4a, 4b ... Locking bar 6 ... Bag, 7 ... Stopper 8 ... Cylinder, 11 ... Bracket 13a, 13b ... Locking claw , 15 ... Spring 17 ... Cam plate, p ... Key body

Claims (1)

[Scope of utility model registration request] 1. A guide cylinder for reversing and dropping a container filled with an object to be filled is provided so as to be swingable at a constant angle upward from a vertical position by horizontal operation of a cylinder, and a pair of guide cylinders are provided at left and right symmetrical positions on the lower edge of the guide cylinder. The locking claws of are provided so as to be swingable, the lower tips of the locking claws are formed into L-shaped key bodies, and the front ends of the key bodies are constantly projected into the guide cylinder by the pressing force of the spring. , Thereby partially locking the peripheral edge of the container that reverses and falls in the guide tube, and mounting it on the upper end of the locking claw at the left and right opposite positions of the stroke path where the guide tube swings upward with a constant inclination angle. By providing a cam plate with which the rollers contact, the key body of each locking claw escapes outside the guide cylinder as the rollers contact the cam plate due to the swing movement of the guide cylinder, and the reversing container inside the guide cylinder is removed. It is specially designed so that it will fall off the key body of the locking claw. Discharge device for packing a.