JPH0720007Y2 - Automatic reversal discharge device for packing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an automatic reversing and discharging device for filling materials in an automatic packaging machine for food and the like.

(Prior Art) FIG. 6 shows a conventional device, in which a container 1 in which a predetermined amount of filler is stored is sequentially conveyed by a belt conveyor 2, Once the locking bar 31a or 31b has stopped traveling, the locking bar 31 on the front side
retract the a and guide the container 1 at the tip into the guide tube 34,
The filling is discharged by reversing and dropping, and is supplied and filled into the prepared bag (or can) 19 via the hopper 17.

On the other hand, the empty container after the filling is discharged is received by the stopper plate 32, and then the guide tube 34 is moved by the cylinder 35.
Is slid down on the guide plate 36 by inclining and is carried out to the outside by another carrying means such as the belt conveyor 30 and is collected.

(Problems to be solved by the invention) The above-mentioned device is a method for discharging a filling by reversing the container on the belt conveyor by the action of the locking bar by gravity fall and discharging the filling. Therefore, the inverted state may become unstable, and the filler may be scattered and not accurately dropped into the hopper 17, or the filler oil or other viscous substances may be scattered inside the guide tube 34. When it comes into contact with the outer periphery of the container that naturally falls, it becomes a resistance that prevents the drop, and there is a problem that the discharge timing varies or is clogged. In addition, there is a problem that the posture of the container after dropping is unstable and the container does not slide down smoothly on the guide plate.

(Means for Solving the Problem) The present invention stores a certain amount of filling material, temporarily stops the containers sequentially conveyed by a belt conveyor, and then holds the holding means from both sides, and the holding means. It is characterized in that it is provided with a reversing means for reversing the container upside down.

The operation of the present invention will be clarified by the following examples.

(Embodiment) FIG. 1 is a plan view of the device of the present invention, and FIG. 2 is a side view of the same device taken along line XX.

In each figure, 1 is placed on a belt conveyor 2 which runs in a container containing a certain amount of filler and runs. 11a, 11b
Is a pair of front and rear locking bars for temporarily stopping the container 1 just before the container reversing operation position described below. The rod length is appropriately extended to press the tip of the bar against the outer wall of the container 1. It is designed to stop the running of.

4a and 4b are a pair of left and right gripping claws (toward the traveling direction of the conveyor) for gripping the container 1 sent to the reversing operation position from both sides, and A is the gripped container 1 in FIG. It is a container reversing device that rotates as shown by the arrow to turn it upside down.
A bag (or a can) 19 prepared via 17 is charged and filled.

Reference numeral 16 denotes a stopper plate which is provided at a position slightly higher than the upper end surface of the belt conveyor 2 and has a filler dropping hole which is slightly larger than the inner diameter of the opening of the container and slightly smaller than the outer diameter. 1 is stopped by colliding with the peripheral edge of the hole of the stopper plate 16 at the end of its movement. Therefore, the filler attached to the peripheral wall of the container can be effectively discharged by the impact of the collision.

The empty container 1 ′ from which the filling has been discharged is tumbled by the operation of the cylinder 13 onto the empty container discharge chute 14 which is juxtaposed in parallel via the push rod 12 and automatically moves on the empty container discharge chute 14. Be transferred and collected.

FIG. 3 shows a concrete configuration of the container reversing device A, which includes 4a and
Reference numeral 4b denotes a pair of left and right gripping claws for gripping the container 1 from both sides. The left claw 4a is fixed to the outer cylinder 10, and the right claw 4b is fixed to the end of the shaft 3 which is inserted through the outer cylinder 10. A cylinder 9 is connected to the other end of the shaft 3. On the other hand, a pinion gear 5 is fitted and fixed to the outer cylinder 10, and the pinion gear 5 and the separate shaft 7 are provided.
The gear wheel 6 fitted to the gear meshes with the gear wheel 6.

Then, the container 1 is gripped (or released) by expanding and contracting the cylinder 9, that is, when the container 1 conveyed by the belt conveyor 2 is stopped at a predetermined position by the receiving plate 18, the cylinder 9 is moved. Container 1 by contracting and moving the right claw 4b inward
Is gripped between the left and right claws 4a and 4b.

On the other hand, the reversal of the container 1 is performed by rotating the large and small gears, that is, when the shaft 7 is rotated by separate means described later, the large gear 6 and the small gear 5 are transmitted to rotate the outer cylinder 10, Since the left claw 4a fixed to the outer cylinder 10 and the right claw 4b fixed to the shaft 3 rotate in conjunction with each other, the container 1 is approximately centered on the shaft 3.
Rotate 180 °, at which time the container is turned upside down.

FIG. 4 shows an example in which a crank mechanism is used as the driving means for the above-mentioned reversal movement, and an arm 8 is attached to the end of the shaft 7 and a rod 22 is connected to this via a shaft 12. Then, by applying an axial movement to the rod 22 by a separate means, the large gear 6 is rotated via the arm 8 and then the container 1 is inverted via the small gear 5 and the outer cylinder 10.

Next, the operation of the device of the present invention will be described. When the container 1 containing a certain amount of the filler is sequentially conveyed through the belt conveyor 2 and reaches a position just before the container reversing operation position, it is temporarily stopped by the front and rear locking bars 11a and 11b. Then, the front locking bar 11a is unlocked so that only one container is moved forward, and the container 1 hits the receiving plate 18 and is locked at a predetermined position. This is confirmed by a separate means such as a proximity switch (not shown), the cylinder 9 is driven to move the right claw 4b inward, and the holding claws 4a and 4b are used to move the container 1
The container 1 is then reversed by the reversing device A, and the upper part of the container is made to collide with the stopper plate 16. By this reversing movement, the filling material in the container 1 is discharged, and is dropped and filled into the bag (or can) 19 through the hopper 17.

The empty container 1 ′ from which the filling has been discharged is pushed by the push rod 12 and slides on the stopper plate 16, falls from the projecting end 16 a of the empty container 1 ′ onto the container discharge chute 14 and is then automatically transferred on the same. Be forwarded.

The above-described process operations of gripping, reversing and discharging the container are automatically repeated at regular intervals for each one, and are continuously performed.

(Effects of the Invention) According to the present invention, the container is securely gripped from both sides by the pair of gripping claws and is mechanically inverted by the reversing device, so that the reversing operation is surely performed. Therefore, the filling material is dropped accurately. Further, since the edge of the container is made to collide with the backing plate at the end of the reversing operation, it is possible to effectively discharge even the sticky filling material.

Since it is no longer necessary to drop the guide cylinder in an empty container as in the conventional example, the viscous substance that adheres to the guide cylinder and increases over time prevents the container from falling and the timing of container discharge It does not cause problems such as unevenness or clogging.

Further, since the empty container is automatically transferred by the container discharge chute formed to be inclined, the empty container can be completely recovered with a simple device.

[Brief description of drawings]

FIG. 1 is a plan view of the device of the present invention, FIG. 2 is a side view of the device taken along line XX, FIG. 3 is a container reversing mechanism diagram, FIG.
FIG. 5 shows a side view taken along the line YY of FIG. 1, and FIG. 6 shows a conventional device. 1 ... Container, 2 ... Belt conveyor 4a, 4b ... Gripping claw, 10 ... Outer cylinder 11a, 11b ... Locking bar, 12 ... Push bar 13 ... Cylinder, 14 ... Empty container discharge shut 16 ... Stopper plate, 17 ... Hopper 19 … Bags (cans), 18… Receiving plate

Claims (1)

[Scope of utility model registration request] 1. A pair of containers for storing a fixed amount of filling material, temporarily stopping the containers sequentially conveyed by a belt conveyor, and then performing a timing operation of feeding one container while keeping the container at a constant interval. A stopper, a gripping means for holding one sent container and gripping it from both sides, a reversing means for reversing and turning about 180 ° to invert the gripped container, and an upper end surface of the belt conveyor. A stopper plate provided at a slightly higher position and having a dropping hole slightly larger than the inner diameter of the opening of the container and slightly smaller than the outer diameter, and an empty container whose grip is released after the container is reversed by the reversing means. An automatic device for reversing and discharging a filling, comprising a conveyor and a pushing means for pushing in a direction perpendicular to the conveyor.