JPH04122630A - Removing device for scrap in die cutting paper ware - Google Patents

Abstract

PURPOSE:To save the work of setting a male plate and remove mold release waste completely by sucking mold release waste by means of a sucker provided in an opeing formed on a female plate or on the upper edge face, rotating the sucker downwardly by expanding a bellows tube connected with the sucker and removing the mold release waste from a raw material sheet. CONSTITUTION:When a mold released raw material sheet 38 is flowed on a femal plate 10 and stopped on the given position, mold release waste 40 is stopped on an edge or an opening of the female plate. Successively a rotating valve 32 is actuated to make a suction pump 34 and an air suction and exhaust tube 40 connected together, and the air in a bellow tube is exhausted out of the air suction and exhaust tube 30 and the mold release waste 40 is sucked and adhered to a sucker 22. When the mold release waste 40 is adhered to the sucker 20, the inside of the bellows tube 28 coming from the air suction and exhaust tube 30 is vacuumized by the exhastion of air in the bellows tube 28 to contract the bellows tube 28, and the sucker 22 is rotated downwardly together with an arm 16 resisting to a spring 18 as an encouraging means. The mold release waste 40 is removed from the raw material sheet 38 because of said arrangement.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an apparatus for removing die-cutting waste after die-cutting a paperboard for a folding carton when manufacturing a folding carton.

[Prior Art] Simply put, the manufacturing process for paper cartons includes printing, die cutting, and pasting. Normally, die-cutting involves inserting steel blades and rules into plywood to create a wooden pattern, and inserting the material between this and the opening of a steel plate anvil to punch out the material. If the product is completely punched out, the product and the scraps will get mixed together, so the scraps are removed by hand or machine in the next process, to prevent them from falling out due to vibration or other forces.

Conventionally, in order to remove this die-cutting waste using a machine, a female plate cut into the shape of the product was fixed underneath, while the male plate was edged with a steel strip to match the shape of the female plate so that the female plate would fit. , Place sponges, pins, etc. at important points on the outer periphery of this edging and at the punched holes, position this male plate on top of the female plate, attach it so that it can be raised and lowered, and remove the die-cut material that has flown onto the female plate. The die cutting waste was removed by sandwiching the paperboard between male boards.

Particularly in the case of small debris that is difficult to fall out of, such as holes and grooves,
) As shown in (b), a vertically movable pin 42 faces the hole 12 provided in the lock plate 1o, and the male plate 44 descends.
A type that punches out the scraps 40 downward by sandwiching the scraps 40 between the pin 46 and the pin 46 was used.

[Problems to be Solved by the Invention] However, in the conventional method for removing internal die cutting waste, it is necessary to remove a band plate or a pin from the male plate according to the outer shape or hole of the chain plate. The male plate is very troublesome and requires time and effort. Additionally, in the case of small debris that is difficult to fall out of, such as holes or grooves, the method of pushing it out by sandwiching it between a pin on the female board and a pin on the male board does not effectively remove the debris when the paperboard is relatively thick, such as cardboard. However, if the paperboard becomes thin, it may not be able to be completely clamped between the pins, and debris may not be completely removed and may end up hanging in the holes.

The present invention was made in order to solve the above-mentioned problems when mechanically removing die cutting waste in the manufacturing of folding cartons. It is an object of the present invention to provide a paper carton die-cutting waste removing device capable of removing die-cutting waste.

[Means for Solving the Problems] The folding carton die removal device of the present invention includes an arm rotatably attached to the lower surface of the female plate downward, and a biasing means for biasing the arm upward. a suction cup attached to the tip of the arm and facing the upper end of the hole made in the female plate by the biasing means or the upper end of the edge of the female plate; one end connected to the suction cup and the other end connected to the tip of the arm; [Function] The suction cup is attached to the tip of an arm, and this arm is a biasing means. The suction cup faces the upper end of the hole provided in the female plate or the upper end of the edge of the female plate.

When the die-cut raw paperboard flows onto the female plate and stops at a predetermined position, the die-cutting waste to be removed is stopped on the edge or hole of the female plate. Subsequently, when the air in the bellows tube is exhausted from the suction and exhaust pipe, the bellows tube is connected to a suction cup, so the sucker sucks up the die cutting waste.

After the suction cup has sucked up the die cutting waste, when the air in the bellows tube is further exhausted from the suction and exhaust pipe, the bellows tube contracts and the suction cup rotates downward together with the arm against the biasing means, so that the die cutting waste is removed from the product. removed.

Once the bellows tube has contracted and the suction cup has rotated to the desired position, stop exhausting the air in the bellows tube from the intake and exhaust pipe, and then send air into the bellows tube through the trachea. The sucked-up molding waste is blown away and the bellows tube is extended, so that the @ board faces the top surface of the hole or edge of the chain plate again by the biasing means attached to the arm.

Thereafter, by repeating the same operation (g), the waste of the raw paperboard that has been washed away after being cut out is removed.

[Embodiment 1] A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of an embodiment of the present invention. An arm 16 is attached to the female plate 10 near the hole 12 via a bracket 14 so as to be rotatable downward. A spring 18 serving as a biasing means is provided between the arm 16 and the bracket 14.
is attached, and the arm 16 is pushed upward.

The arm 1.16 urged upward is stopped at a substantially horizontal position by an arm stop 20 attached to the bracket 1.1.

The suction cup 22 is a dish-shaped disc 24 made of an elastic material such as rubber.
and a suction pipe 26 attached to the center of the disk 24, which is fixed to the tip of the arm 16.
When the suction cup 22 is biased by the spring 18 and stopped in a horizontal position, the disc 24 of the suction cup 22 faces the -E end of the hole in the female plate 10.

At the lower end of the suction pipe 26 of the suction cup 22, a telescopic bellows pipe 2 is provided.
One end of the bellows tube 28 is connected to the bellows tube 28, and the other end of the bellows tube 28 is fixed to a point on the bracket 14 that intersects with the rotation locus of the tip of the arm 16.

Further, an intake/exhaust pipe 30 is connected to the defined end of the bellows pipe 28, and an intake pump 34 and an exhaust pump 36 are connected to this intake/exhaust pipe 30 via a rotary valve 32 that can be switched between three directions at any time. ing.

The operation of this embodiment having the above configuration will be explained.As shown in FIG.
The second disc 24 faces the upper end of the hole 12 provided in the female plate 10.

The die-cut raw paperboard 38 flows onto the female board 10,
Once in place, the die cut 40 to be removed will rest on the edge or hole of the female plate.

Next, operate the rotary valve 32 to shut down the intake pump 3.
4 and the intake/exhaust pipe 30 are connected, the intake/exhaust pipe 30
As the air inside the bellows tube is exhausted, the suction cup 22 sucks the die cutting waste 40 and comes into close contact with it.

When the suction cup 22 comes into close contact with the die-cutting waste 40, the air inside the bellows tube 28 is exhausted from the suction/exhaust pipe 30, and the inside of the bellows tube 28 becomes depressurized, causing the bellows tube 28 to contract as shown in FIG. , the suction cup 22 rotates downward together with the arm 16 against the spring 8 which is a biasing means. Therefore, the die cutting waste 40 is removed from the raw paperboard 38.

When the bellows pipe 28 has shrunk and the suction cup 22 that has absorbed the debris 40 has rotated to a desired position, the rotary valve 32 is operated again to connect the intake/exhaust pipe 30 and the exhaust pump 36, this time or in reverse. As a result, air is sent from the intake and exhaust pipe 30 into the bellows pipe 28, and the mold cutting waste 4 that has been sucked up by the suction cup 22
0 is blown away, the bellows tube 28 extends and the suction cup 2
2 comes to face the upper surface of the hole 12 of the female plate 10 again by the spring 18 attached to the arm 16.

Thereafter, by repeating the same force operation, the scraps of the raw paperboard that have been washed away after being cut out are removed. In this embodiment, the device was attached to the hole provided in the female plate, but it may also be attached to the edge of the female plate.

[Effects of the Invention] As explained above, the paper carton die cutting waste removal device of the present invention attracts die cutting waste with the hole provided in the female plate or the suction cup facing the upper surface of the rim, and removes the die cutting waste from the bellows pipe connected to the suction cup. The suction cup is rotated downward by expansion and contraction to remove die-cutting waste from the raw paperboard, and the male plate is not required. Setting time can be saved. In addition, since it is sucked up using a suction cup, even relatively thin die cutting waste can be reliably removed from the product.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of one embodiment of the present invention, FIG. 2 is a sectional view of the embodiment of FIG. 1 in an activated state, and FIGS.
b) is a sectional view of a conventional die-cutting waste removal device. 10... Female plate, 12... Hole, 16... Arm, 1
8... Spring, 22... Sucker, 28... Bellows pipe, 30... Intake and exhaust pipe, 320- Tally valve, 34
...Intake pump, 36... Exhaust pump, 38...
Raw paperboard, 40...Mold scraps Figure 2 Figure 3 (a) Figure 3 (b)

Claims (1)

[Claims] (1) An arm rotatably attached to the lower surface of the female plate in a downwardly rotating manner, a biasing means for biasing the arm upward, and an arm attached to the tip of the arm and actuated by the biasing means to the female plate. a suction cup facing the upper end of the hole provided in the hole or the upper end of the edge of the female plate; a retractable bellows tube with one end connected to the sucker and the other end fixed on the rotation trajectory of the arm tip; A paper carton die cutting waste removal device comprising a connected intake and exhaust pipe.