JPH09155993A - Waste removing device of carton punching machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge device capable of surely discharging paper waste from a punching-out part when cutting a paper pattern out of a thick sheet such as a corrugated fiberboard using a press. SOLUTION: This paper ware punching machine comprises a top plate 3 with a wooden pattern 1 having a downwardly protruded punching blade 2 or a cylinder part 15 and a bottom plate 4 as a mechanical face plate, and a sheet such as a corrugated fiberboard 5 is sequentially fed into a space between the top plate 3 and the bottom plate 4 so that a carbon is obtained by punching with the punching blade 2 using a press. Paper waste 9 generated by a punching operation at the time of pressing is so designed as to be retained inside the punching blade 2. In addition, the puncher is equipped with a discharge mechanism 6 consisting of the punching blade 2 or the cylinder part, a missing page pin and a spring, driven through the engagement between the discharge mechanism 6 an the corrugated fiberboard 5 in order to push the paper waste out of the punching blade 2 which a time delay action, following the ascent of the wooden pattern 1 after the pressing process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scrap removing device in a paper-machine punching machine which punches corrugated paper and other sheets with a pressing machine to form a paper machine.

[0002]

2. Description of the Related Art Conventionally, corrugated box making machines, automatic flat board punching machines, etc. have been used as paper machine punching machines. The basic structure is that corrugated paper and other sheets that are sequentially fed between the upper plate and the lower plate by pressing a wooden mold with a cutting blade attached to the upper plate on the machine face plate to move up and down. I try to punch out the paper container shape. The problem is how to deal with the scraps generated during the punching.

In a large flat plate punching machine or the like, a vibrating device is installed in the press portion to separate the cutout portion from the scrap pieces, or a means for pressing and removing the scrap pieces by a separate machine is used. There is also. As shown in FIGS. 16 and 17, there is a round blade 20 in which a sponge 21 is provided in the center to disperse the scrap pieces 22. The large part of the cutting blade 23 is discharged by providing a scraping blade 24 for finely cutting the inside of the tool (see FIG. 18). Further, there is also a known example in which a cutout portion 26 is formed on the side wall of the round blade 25 so that the scrap pieces are discharged to the side portion when cutting a thin sheet (see FIG. 19).

[0004]

In order to use the above-mentioned large-sized equipment, there are problems that the installation place is wide and the equipment cost is high, and it is difficult to discharge the scrap pieces from the small punching part. There are operational problems. Further, when a device for discharging the scrap pieces by using a sponge or the like is separately provided, the scrap pieces are compressed during the press and remain in the cutting blade, so that it is difficult to completely discharge the scrap pieces.

In order to discharge scraps from thin sheets different from corrugated cardboard paper, in the case of a means for providing a bar-shaped blade portion with a notch portion that continuously extends obliquely upward from the cutting edge to the side wall, for thin sheets. Although it can be effectively discharged, it is not practical because a cutout portion large enough to discharge thick paper such as corrugated paper cannot be formed. The object of the present invention is to solve the above-mentioned problems, and particularly in a thick sheet such as corrugated paper, easily and reliably discharge scraps to a round-shaped or thin groove-shaped punched portion. It enables you to do it. In particular, even if there are many round or grooved punched parts or small scraps, after the press the wood mold of the upper board pushes out the scraps with elastic force from the cutting blade in consideration of the time difference of separating from the corrugated cardboard paper. An object of the present invention is to provide a debris removing device that can be dropped onto corrugated paper.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, between a top plate having a wooden mold having a downwardly projecting cutting blade and a bottom plate as a machine face plate,
Sheets such as corrugated cardboard are sequentially fed, and in a paper machine punching machine in which a paper cutter is punched by the cutting blade with a press, at the time of pressing, the scrap pieces cut out are stopped in the cutting blade, and after pressing, the wood An ejecting mechanism is provided which is driven by engaging with the corrugated cardboard so as to push out the scrap pieces from the cutting blade with a time lag as the mold rises.

In the second invention, the discharging mechanism is a spring,
The sponge and other elastic materials are composed of a missing piece pin, a stick and other extruded parts so that the elastic material can be pushed out of the cutting blade by the restoring force exerted by engaging the corrugated paper. In the third aspect of the invention, the discharging mechanism includes a round blade or a cylindrical portion provided on the wooden mold, a missing page pin loosely fitted in the circular blade or the cylindrical portion, one end fixed to the wooden mold, and the middle portion is the above-mentioned. From a spring, which is a free end that engages with a missing page pin through a slit provided on the side wall of a round blade or a cylinder and a slit provided on the missing page pin, and the other end extends to a position where it can be engaged with corrugated paper. I made it.

According to the fourth aspect of the invention, a discharge mechanism is provided which works in common with a plurality of cutting blades or cylinders. (Operation) According to the first aspect of the present invention, a corrugated paper sheet, which is sequentially fed between the upper board and the lower board as a paper machine punching machine, is pressed by a downwardly projecting cutting blade provided in a wooden mold to a desired paper machine. The shape is punched. The punched scrap pieces are deformed by the press, stop inside the cutting blade, and are reliably separated from the punching hole side. After the pressing, the ejection mechanism is driven while engaging with the corrugated board so as to separate the scrap pieces from the cutting blade with a slight time lag from the pressing as the wooden mold rises.

For one or a large number of punched portions of round type or narrow groove type, a common ejection mechanism can be provided individually or for a plurality of adjacent punched portions to drive them. . or,
Even for punched parts with complicated shapes such as frames, squares, etc., by providing one or more discharge mechanisms around them, the scrap pieces lifted up with the cutting blade can be reliably discharged by these discharge mechanisms. Can be separated.

The time difference for pushing out the scrap pieces from the cutting blade is appropriate after the pressing when the wooden mold rises together with the upper plate and the cut blade is separated from the paper container body, and the scrap pieces separated by the discharging mechanism are on the paper container body. You just have to look like you're falling. In order to drive the ejection mechanism by engaging with the corrugated paper, a metal fitting such as a spring is used to apply a pressing force to push out a scrap piece from the cutting blade when the wooden mold rises and separates from the corrugated paper. There are also cases where a sponge is used or a spring is used in combination.

In the second aspect of the present invention, since the elastic material and the extruding portion of the scrap pieces are provided as the discharging mechanism, the scraps are generated when the spring, sponge and other elastic materials contract when the upper plate moves up and down. Stop the piece in the cutting blade, and due to the engagement relationship with the corrugated paper, the restoring force when the elastic material changes from contraction to extension, the falling pin, stick or other extruding part works to push out the scrap piece from the cutting blade. It is like this.

According to the third aspect of the invention, a round blade or a cylindrical portion having a discharging mechanism provided in a wooden pattern of an upper board, a missing page pin loosely fitted in the round blade or the cylindrical portion, and the round blade or the cylindrical portion. And a falling pin, which is fixed to a wooden mold at one end and has a spring capable of abutting the corrugated paper at the other end.
The falling pin is loosely inserted into the round blade, but when a cutting blade having a shape other than the round blade is used, it can be a discharge mechanism that is loosely inserted into a cylindrical portion provided separately from the cutting blade. .

During pressing, the free end of the spring moves in contact with the corrugated cardboard, and the middle part moves through the slit of the round blade or the cylinder and the slit of the missing pin to the upper end of the slit of the missing pin. The contact pin is driven so as to retract the falling edge pin to the inside of the round blade or the cylindrical portion, and the state in which the scrap pieces of the cutout hole are locked to the cutting blade or the cylindrical portion is maintained. After pressing, when the wooden pattern starts to rise, the time until the free end of the spring separates from the corrugated paper, the middle part of the spring descends in the slit of the missing pin, and when it reaches the lower end, the missing pin is driven. To drop the scraps. Therefore, an appropriate time difference can be obtained between the time of pressing and the discharge of scraps.

According to the fourth aspect of the invention, when a plurality of punching parts are adjacent to each other, they can be operated at the same time by using a common ejecting mechanism. This is applied not only to a plurality of punching parts but also to a case where a cutting blade having a relatively long one side is provided with a plurality of discharging parts on one side to interlock.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, the scrap pieces cut by the cutting blade are deformed at the same time as the press, but they do not remain on the cutting hole side, but stop on the inner circumference of the cutting blade to ensure that the corrugated paper is not cut off. To be separated. After the pressing, when the wooden mold starts to rise, the discharging mechanism is driven by a spring, a sponge, etc. with a time lag to push out the scrap pieces in the cutting blade and discharge them onto the corrugated paper.

The ejecting mechanism is composed of a cutting blade which forms a circular or rectangular or other deformable frame, and a missing page pin and a spring or other elastic material which are loaded in the cutting blade or a separately provided cylindrical portion. At the time of pressing, the cutting blade cuts the fed corrugated paper, the scrap pieces stop inside the cutting blade, and the free end of the spring that is in contact with the corrugated paper is pushed up, so the middle part lifts the missing pin. Hold in position.

After the pressing, when the free end of the spring separates from the corrugated paper as the wooden mold rises, the middle part of the spring descends in the slit of the missing pin and contacts the lower end of the slit to press the missing pin. Drive to push out the scraps in the cutting blade or tube. In addition to the case where the missing page pin is inside the cutting blade as described above, a tube portion can be provided separately from the cutting blade to separately configure the cutting of the corrugated paper by the cutting blade and the discharging of the scrap pieces by the discharging mechanism. . In either case, the corrugated cardboard, the cutting blade, the missing pin and the spring are provided so that there is a time lag between the cutting of the corrugated cardboard by the cutting blade and the discharging of the scrap by the missing pin. Became more certain.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Reference numeral 1 is a wooden block having a cutting blade 2 protruding downward and attached to an upper board 3. The upper plate 3 is a press plate that is linked to the press mechanism and moves up and down for pressing. 4 is the lower board,
It is used as a machine face plate. Reference numeral 5 denotes corrugated paper, which is a sheet cut into a paper mold. The corrugated paper 5 is sequentially fed between the wooden mold 1 attached to the upper board 3 and the machine face plate 4, and is punched by a paper-machine-shaped cutting blade 2 provided on the wooden mold 1 by pressing. .

The cutting blade 2 is a round blade in the illustrated example.
Reference numeral 6 denotes a discharging mechanism, which is composed of a cutting blade 2, a missing page pin 7 loosely fitted in the cutting blade 2, and a spring 8 engaged with the cutting blade 2 and the missing page pin 7. The ejecting mechanism 6 may also be used as the cutting blade 2, and as will be described later, a cylindrical portion that does not cut the corrugated paper may be used separately from the cutting blade 2.

As shown in FIGS. 2 to 4, a cutting blade 2, a missing page pin 7, and a spring 8 are attached to a wooden mold 1. One end 8a of the spring 8 is fixed to the wooden mold 1, the other end 8b is provided so as to be able to contact the corrugated cardboard paper 5, and the intermediate portion 8c is engaged with the slit 2a of the cutting blade 2 and the slit 7a of the missing page pin 7. Mounted on. FIG. 2 shows a side view of the discharging mechanism 6 including the cutting blade 2, and the cutting blade 2 projects downward from the wooden mold 1. One end 8a of the spring 8 extends from the lower end of the wooden mold 1 to the upper side and bends to bend the slit 2a of the cutting blade 2.
Has a second end 8b that extends downward and engages with the slit 2a of the cutting blade 2 again.

5 to 8 are front views showing the states of the cutting blade 2 and the discharging mechanism 6 before pressing, during pressing and after pressing. FIG. 5 is before pressing, and the discharging mechanism 6 is not driven. FIG. 6 shows a pressing operation, in which the cutting blade 2 is a corrugated cardboard paper 5.
Is cut in a circular shape, and the missing page pin 7 holds the scrap piece 9 so that the scrap piece 9 is pulled into the inner circumference of the cutting blade 2.

FIG. 7 shows a state in which the wooden mold 1 has started to rise after pressing, and the other end 8a of the spring 8 is still the corrugated cardboard paper 5.
It is in a state of being in contact with the upper part, and the intermediate portion 8c is moving in the slit 7a of the falling pin 7. FIG. 8 shows a state in which the other end 8b of the spring 8 has risen to a position separated from the corrugated cardboard paper 5, and the intermediate portion 8c of the spring 8 abuts against the lower end portion of the slit 7a of the falling pin 7 and pushes it down. It is in a driven state. The scrap piece 9 is discharged from the cutting blade 2 by the pressing of the falling pin 7 and drops onto the corrugated paper 5.

As described above, in this embodiment, the scrap pieces 9 cut at the time of cutting by the cutting blade 2 can surely stop on the inner circumference of the cutting blade 2, and the wooden mold 1 can rise in that state. As a result, the corrugated paper 5 is completely separated. Further, the falling pin 7 is driven by the elastic force of the spring 8 as the wooden mold 1 is raised, and the scrap piece 9 is pushed out and dropped. Therefore, since the scrap pieces 9 can be dropped with a certain time lag from the time of pressing, the scrap pieces 9 drop onto the corrugated paperboard 5 and are reliably discharged.

FIG. 9 shows another embodiment of the sponge 1.
This is an example in which 0 is provided below the wooden mold 1 to return by the elastic force, and the spring 11 is returned according to the time difference of the missing pin 12 to push out the scrap pieces. FIG. 10 shows another embodiment of the cutting blade, showing the cutting blade 13 provided in a convex shape. A plurality of discharge mechanisms 14 are provided around the cutting blade 13. The discharging mechanism 14 has the same structure as that shown in FIGS. The tubular portion 15 is configured separately from the cutting blade and does not perform the cutting. The cutting is performed by a cutting blade 13, and a falling pin installed in the cylindrical portion 15 is driven by a spring with a time lag to discharge a scrap piece. In the illustrated example, a cylindrical portion is used as the cylindrical portion 15.

FIG. 11 shows another embodiment, in which 16 is a pin, 17 is a metal member fixed to the pin 16, and 18 is a sponge. FIG. 12 shows the time of pressing. FIG. 13 shows the metal fitting 17 fixed to the pin 16 taken out. FIG. 14 shows a case where a spring or a bar 17 is used instead of the missing page pin, which is used when the cutting blade is small.
FIG. 15 shows still another embodiment, and shows a case where a pipe 19 in which a plurality of springs and metal fittings are connected is used instead of the missing page pin. For example, in the case where the cutout portion is large as in the cutout blade shown in FIG. 10, using the pipe 19 simplifies the configuration.

[0026]

According to the first aspect of the invention, the scrap pieces cut out at the time of pressing are stopped in the cutting blades, and the scrap pieces are driven so as to be pushed out of the cutting blades with a time lag along with the rise of the wooden mold after pressing. Since the mechanism is provided, the scrap pieces can be discharged surely onto the corrugated cardboard paper, which facilitates the operation.

In the second invention, since the elastic material and the extruding portion of the scrap pieces are provided as the discharging mechanism, the elastic material repeatedly contracts and expands by being engaged with the corrugated board, and the scrap pieces inside the cutting blades. Ensures the discharge of. According to the third aspect of the invention, since the discharging mechanism is composed of the round blade, the missing page pin loosely fitted in the round blade, and the spring engaged with these, the compact mechanism has a strong resilience. When a cutting blade different from the round blade is provided, it can be applied to various ejection mechanisms by separately providing a tubular portion and driving the ejection mechanism.

According to the fourth aspect of the present invention, since a plurality of cutting blades or a plurality of disposed cutting mechanisms are provided with a discharge mechanism that works in common with each other, the plurality of devices do not malfunction and the waste pieces are discharged in a reliable manner. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a device of the present invention.

FIG. 2 is a front view showing the assembly of the discharge mechanism as one embodiment.

FIG. 3 is a plan view of the discharging mechanism.

FIG. 4 is an exploded front view of a cutting blade, a missing page pin, and a spring which constitute a discharging mechanism.

FIG. 5 is a front view showing the discharge mechanism before pressing.

FIG. 6 is a front view of the discharging mechanism during pressing.

FIG. 7 is a front view showing a state in which the wooden mold has started to rise after the discharge mechanism is pressed.

FIG. 8 is a front view showing a state in which a scrap piece is pushed out from the discharge mechanism.

FIG. 9 is a front view showing another embodiment of the discharging mechanism.

FIG. 10 is a plan view showing another embodiment of the cutting blade provided on the corrugated paper.

FIG. 11 is a cross-sectional view showing another embodiment using a sponge for the discharging mechanism.

FIG. 12 is a cross-sectional view showing the corrugated board cut in FIG. 11;

FIG. 13 is a front view showing another embodiment of a missing page pin.

FIG. 14 is a front view showing still another embodiment of a missing page pin.

FIG. 15 is a front view showing a missing page pipe in which a plurality of metal fittings are connected to each other.

FIG. 16 is a front view showing a conventional example.

FIG. 17 is a front view showing the state of a conventional cutting blade.

FIG. 18 is a front view showing another example of the conventional cutting blade.

FIG. 19 is a front view showing still another example of the conventional cutting blade.

[Explanation of symbols]

 1 Wooden Model 2,13 Cutting Blade 2a Slit 3 Upper Plate 4 Lower Plate (Machine Face Plate) 5 Corrugated Cardboard Paper 6,14 Discharging Mechanism 7,12 Missing Pin Pin 7a Slit 8,11 Spring 8a One End 8b Other End 9 Waste Pieces 10,18 Sponge 15 Tube 16 Pin 17 Metal fitting 19 Pipe

Claims (4)

[Claims] 1. Sheets such as corrugated cardboard are sequentially fed between an upper plate having a wooden mold having a cutting blade projecting downward and a lower plate serving as a machine face plate, and a paper container is pressed by the cutting blade with a press. In a paper machine punching machine that was designed to punch
At the time of pressing, the scrap pieces cut out are stopped inside the cutting blade, and after pressing, the scrap pieces are pushed out of the cutting blade with a time lag as the wooden mold rises. A waste piece removing device in a paper machine punching machine, which is provided with a mechanism. 2. A spring, a sponge or other elastic material, and an ejecting mechanism that pushes a scrap piece out of a cutting blade by a restoring force exerted by the elastic material engaging with corrugated cardboard. The debris removing device in a paper machine punching machine according to claim 1, comprising an extruding section. 3. A discharging mechanism, wherein a round blade or a cylindrical portion provided on a wooden mold, a missing page pin loosely fitted in the round blade or the cylindrical portion, one end fixed to the wooden mold, and an intermediate portion is formed by From a spring, which is a free end that engages with a missing page pin through a slit provided on the side wall of a round blade or a cylinder and a slit provided on the missing page pin, and the other end extends to a position where it can be engaged with corrugated paper. The waste piece removing device in a paper machine punching machine according to claim 1, wherein 4. A discharging mechanism provided in common with a plurality of cutting blades or a cylindrical portion arranged therein.
Alternatively, the waste piece removing device in the paper container punching machine according to claim 2 or 3.