JP2007313602A - Punching machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a punching machine that facilitates the positioning of a punch die and a faceplate on the machine. <P>SOLUTION: The punching machine 1 is provided with the punch die 10, the faceplate 20 which is arranged oppositely to the punch die 10 so as to be relatively movable in the direction of approaching and separating to/from the punch die 10, a support part 50 which slidably supports the faceplate 20 in a plane vertical to the direction of approaching and separating to and from the punch die 10, an engaging part 82 formed at the punch die 10, and a part 81 to be engaged that is formed at a position opposite to the engaging part 82 in the faceplate 20 so as to be engaged with the engaging part 82 accompanied by transition from a separated state to a close state between the punch die 10 and faceplate 20. The punch die 10 and faceplate 20 are arranged at a position that allows punching in an engaged state between the engaging part 82 and the part 81 to be engaged. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a punching machine that punches a printing book or the like to manufacture a blank of a paper container.

A punching machine that produces blanks for paper containers by punching sheet materials such as printing books, etc., as a preparatory work for the punching process, aligns the ruled line blade provided on the die and the ruled line groove provided on the face plate. Such an alignment operation is called a ruled line adjustment.
Here, there is a punching machine in which a transport device that transports a printing book to be punched is disposed between an upper surface plate that supports a punching die and a lower surface plate that supports a face plate.
For this reason, the die and face plate cannot be pre-aligned and set in the punching machine, and the crease adjustment is performed after the die and face plate are individually set in the punching machine and then set in the punching machine. It was necessary to do in.

2. Description of the Related Art Conventionally, a punching machine is known that includes a position adjusting device that has an adjustment screw that finely adjusts the position of a face plate with respect to the die, while supporting the face plate slidably with respect to the die. 1).
JP 2005-1010 A

However, this conventional punching machine finely adjusts the position of the face plate with respect to the die while confirming the positions of the ruled line blade and the ruled line groove by actually punching the printing book. For this reason, the printed book is wasted and the adjustment work for the ruled line is complicated.
An object of the present invention is to provide a punching machine that can easily perform alignment between a punching die and a face plate on the machine.

The present invention solves the above problems by the following means.
The invention according to claim 1 is a cutting die, a face plate disposed opposite the die and provided to be relatively movable in a direction approaching and separating from the die, and the face plate approaching the die and A support portion that is slidably supported in a plane perpendicular to the direction of separation, an engagement portion provided in the die, and a position facing the engagement portion in the face plate, the die and the face plate And an engaged portion that engages with the engaging portion in accordance with the transition from the separated state to the approaching state, and the die and the face plate are in an engaged state between the engaging portion and the engaged portion. The punching machine is arranged at a position where punching is possible.

According to a second aspect of the present invention, in the punching machine according to the first aspect, at least one of the engaging portion and the engaged portion includes an engagement guide portion that guides the engagement to a tip portion thereof. This is a characteristic punching machine.
A third aspect of the present invention is the punching machine according to the first or second aspect, further comprising an air supply section for supplying compressed air between the support section and the face plate. .
According to a fourth aspect of the present invention, in the punching machine according to any one of the first to third aspects, the support portion includes a magnetic force fixing portion that fixes a position of the face plate with respect to the support portion by a magnetic force. This is a punching machine.
According to a fifth aspect of the present invention, in the punching machine according to any one of the first to fourth aspects, at least one of the engaging portion and the engaged portion is relative to the punching die and the face plate. A punching machine characterized by being a detachable protrusion.

  As described above, in the punching machine according to the present invention, when the die and the face plate are relatively moved in the approaching direction, the engaging portion and the engaged portion are engaged, whereby the die and face plate can be punched Placed in position. Since the face plate is supported so as to be slidable in a plane perpendicular to the direction approaching and separating from the die, the engagement portion and the engaged portion can be easily engaged.

  The present invention aims to provide a punching machine that can easily perform alignment between a die and a face plate on the machine. The face plate is slidably mounted on the die and creased by engaging with each other. The problem has been solved by providing the face plate, the positioning pin for guiding the punching die, and the positioning hole at the punchable position where the alignment of the blade and the ruled line groove is completed, respectively.

Hereinafter, embodiments of a punching machine to which the present invention is applied will be described with reference to the drawings.
FIG. 1 is a perspective view showing a punching machine according to the first embodiment.
FIG. 2 is a view showing a punching die and a face plate provided in the punching machine of FIG. 1, and (a) and (b) are a perspective view and a side view, respectively.
FIG. 3 is a perspective view showing a face plate holder provided in the punching machine of FIG.

The punching machine 1 is for punching a sheet-like base material such as a printing book to manufacture a blank for a paper container. The punching die 10, the face plate 20, the upper surface plate 30, the lower surface plate 40, the face plate holder 50, the printing book transport device. 60, a face plate position adjustment unit 70, and a positioning unit 80 are provided.
The die 10 and the face plate 20 are both plate-like members having a rectangular planar shape, and the die 10 is disposed above the face plate 20 in the vertical direction. The die 10 and the face plate 20 are arranged in a state where the facing surface portions are parallel to each other.
The punching die 10 is a punching die male die provided with a punching blade 11 for punching a printing book along a predetermined punching line and a ruled wire blade 12 for forming a ruled line for bending on the printing book (see FIG. 2). . These punching blades 11 and ruled line blades 12 are formed so as to protrude toward the face plate 20 from the face portion facing the face plate 20 in the die 10. Hereinafter, the punching blade 11 and the ruled line blade 12 will be collectively referred to as a blade portion.

The face plate 20 is a punching type female die provided with a ruled line groove 21 into which the ruled line blade 12 of the die 10 is inserted. The face plate 20 is made of, for example, an iron-based metal material and has a property of being attracted to a magnet.
As for the face plate 20, the cardboard called the press board 22 is affixed on the surface part which opposes the die 10 with the adhesive agent, for example. The ruled line groove 21 is formed in the press pod 22 in a shape corresponding to the ruled line blade 12.

The upper surface plate 30 is a plate-like member that is disposed above the die 10 and has a rectangular planar shape, and the die 10 is detachably mounted via a frame called a chase (not shown). Is.
The lower surface plate 40 is a plate-like member that is disposed below the face plate 20 and has a rectangular planar shape.
Among these upper surface plate 30 and lower surface plate 40, the position of the upper surface plate 30 in the punching machine 1 is fixed. On the other hand, the lower surface plate 40 is movable in the vertical direction, and the punching machine 1 sets a printing book (not shown) between the die 10 and the face plate 20, and the lower surface plate 40 is moved to the upper surface plate. The book is punched out by approaching 30.

The face plate receiver 50 is a plate-like member having a rectangular planar shape, and is disposed between the face plate 20 and the lower surface plate 40. The face plate receiver 50 is detachably attached to the lower surface plate 40. Further, the face plate 20 described above is detachably attached to the face portion opposite to the face portion facing the lower surface plate 40 in the face plate receiver 50. Hereinafter, in the face plate receiver 50, the surface portion on the side where the face plate 20 is mounted will be referred to as a mounting surface portion.
The face plate receiver 50 includes an adapter 51 as shown in FIG. The adapter 51 is a plate-like member provided at each end of the four sides of the face plate receiver 50. Each adapter 51 is formed so that a part thereof protrudes from the lower surface of the face plate receiver 50, and the face plate receiver 50 is fixed to the lower platen 40 by engaging with the end of the lower platen 40.

The printing book conveying device 60 conveys the printing book between the die 10 and the face plate 20 from the outside of the punching machine 1, and the vertical position in the punching machine 1 is between the die 10 and the face plate 20. ing.
The bookbinding apparatus 60 includes a chain 61 and a gripper bar 62.
The chain 61 drives the gripper bar 62 in a horizontal plane, and a pair of chains 61 are provided with the die 10 and the face plate 20 interposed therebetween.
The gripper 62 is a belt-like plate material, and both ends thereof are supported by the pair of chains 61. The gripper bar 62 is driven by the chain 62 while holding the printing book, thereby conveying the printing book to a predetermined punching position between the die 10 and the face plate 20.

The face plate position adjusting unit 70 is for adjusting the position of the face plate 20 with respect to the face plate receiver 50, and includes a stopper key 71, an air supply hole 72, and a magnet chuck 73 as shown in FIG.
The stopper key 71 is a belt-like plate material fixed to an edge portion including four corner portions (four corners) in the mounting surface portion of the face plate receiver 50. The face plate 20 is placed in a region surrounded by the stop key 71 in the face plate receiver 50. The stop key 71 contacts the face plate 20 when the face plate 20 slides with respect to the face plate receiver 50 from this state. Thus, the slidable area of the face plate 20 is limited within the mounting surface portion of the face plate receiver 50.

The air supply hole 72 is an air supply unit that supplies compressed air supplied from a compressor provided outside the punching machine 1 between the face plate 20 and the face plate receiver 50. Are distributed at predetermined intervals.
The pressure of the compressed air supplied from the air supply unit 72 is set, for example, such that the pressing force due to the weight of the face plate 20 acting on the face plate receiver 50 can be offset.
The magnet chuck 73 includes an electromagnet (not shown), and is a magnetic force fixing unit that is attracted to the face plate 20 by being magnetized by receiving electricity and fixing the position of the face plate 20 with respect to the face plate receiver 50 by this attraction force.

The positioning part 80 includes a positioning pin 81 and a positioning pin insertion part 82.
The positioning pin 81 is a columnar protrusion provided so as to protrude from the surface portion of the face plate 20 that faces the die 10 and is an engaged portion that is detachably attached to the face plate 20. The diameter of the positioning pin 81 is, for example, 8 mm. In addition, the positioning pins 81 are provided at, for example, two diagonal corners among the four corners of the face plate 20 (see FIG. 2A).
The positioning pin 81 is formed such that the diameter gradually decreases from the intermediate portion in the height direction toward the tip, and the tip is formed in a truncated cone shape (see FIG. 2B). Hereinafter, the truncated cone portion formed at the tip of the positioning pin 81 will be referred to as a tapered portion 81a.

The positioning pin insertion portion 82 is a cylindrical member provided in the die 10 and is an engaging portion that engages with the positioning pin 81 when the positioning pin 81 is inserted into the inner diameter side thereof.
The positioning pin insertion portion 82 is provided such that one end portion protrudes toward the face plate 20, and an opening is formed at this end portion. Further, the inner diameter dimension of the positioning pin insertion portion 82 is set larger than the outer dimension of the positioning pin 81 by a minute gap for allowing sliding between the positioning pin 81 and the positioning pin insertion portion 82.
The positioning pin insertion portion 82 is set so that the protruding amount from the surface facing the face plate 20 of the die 10 is smaller than the blade portion, and even if the blade portion contacts the face plate 20, the tip portion contacts the face plate 20. It is supposed not to.

The positioning pin 81 and the positioning pin insertion portion 82 are engaged with each other, and in a state where the cutting edge of the blade portion is in contact with the face plate 20, the tip portions thereof are overlapped by, for example, 4 mm, respectively. The dimensions are set.
The punching die 10 and the face plate 20 are arranged at a punchable position in a state where the positioning pin 81 described above is inserted into the positioning pin insertion portion 82. Here, in the present specification, the punchable position of the die 10 and the face plate 20 means that the ruled line blade 12 provided in the die 10 and the groove portion 21 provided in the face plate 20 include the die 10 and the face plate 20. It shall mean a position overlapping in the approaching and separating direction (vertical direction in this embodiment). In this punchable position, the punching machine 1 prevents a punching defect called a so-called ruled crack, which occurs when the ruled line blade 12 is displaced from the center of the ruled line groove 21.

This punchable position is set by forming a ruled line groove 21 in the face plate 20 in accordance with the ruled line blade of the die 10.
Hereinafter, an example of a procedure for forming the ruled line groove 21 will be described.
The punching die 10 and the face plate 20 are previously provided with positioning pins 81 and positioning pin insertion portions 82, respectively.
Further, the punching die 10 is provided with a blade portion (a punching blade 11 and a ruled line blade 12), and the face plate 20 is affixed with a press board 22 in which a ruled line groove 21 is not formed in a surface portion facing the punching die 10.

In the press board 22, carbon paper is laid on the surface portion facing the die 10. In this state, the die 10 and the face plate 20 are brought close to each other, and the positioning pin 81 is inserted into the positioning pin insertion portion 82 to bring the blade portion into contact with the carbon paper. As a result, the blade type of the blade part is transferred to the press board 22.
Thereafter, the die 10 and the face plate 20 are separated from each other, and the ruled line groove 21 is processed in the press board 22 along the transferred blade shape.
Accordingly, when the positioning pin 81 is inserted into the positioning pin insertion portion 82, the punching die 10 and the face plate 20 automatically become punchable positions where the ruled line blade 12 and the ruled line groove 21 overlap.

Next, the operation | movement at the time of blank manufacture in the punching machine 1 of an Example is demonstrated.
The punching machine 1 can normally manufacture a plurality of types of blanks by exchanging a plurality of types of punching molds 10 and face plates 20, and the paper machine manufacturing operation is performed by first attaching the punching die 10 and the face plate 20 to the punching machine 1. Start with that.
In the punching machine 1, the die 10 is attached to the upper surface plate 30, and the face plate 20 is attached to the face plate receiver 50. The press board 22 affixed to the face plate 20 has the ruled groove 21 formed by the above-described procedure.
At this time, the punching die 10 is fixed to a predetermined mounting position on the upper surface plate 30 via a chase (not shown), and the horizontal position in the punching machine 1 is fixed. On the other hand, the face plate 20 is only placed on the face plate receiver 50 and is slidable in the horizontal direction with respect to the face plate receiver 50.

Thereafter, the punching machine 1 ejects compressed air from the air supply hole 72 of the face plate receiver 50. As described above, the discharge pressure of the compressed air is set, for example, to such an extent that the pressing force due to the load of the face plate 20 acting on the face plate receiver 50 can be offset. It will be in the state.
In this state, since the slidable range of the face plate 20 is limited within the face plate receiver 50 by the stopper key 71, the face plate 20 does not fall off the face plate receiver 50.

Next, the lower surface plate 40 is moved upward, whereby the positioning pin 81 is inserted into the positioning pin insertion portion 82.
Here, since the face plate 20 is merely placed on the face plate receiver 50, the positioning pin 81 may not overlap the positioning pin insertion portion 82 in the vertical direction in this state.
When the lower surface plate 40 is moved upward from this state, the inclined surface of the tapered portion 81 a provided at the tip of the positioning pin 81 contacts the edge of the opening formed at the tip of the positioning pin insertion portion 82. Touch. When the tapered portion 81a comes into contact with the edge of the opening of the positioning pin insertion portion 82, the face plate 20 slides in the horizontal direction by the horizontal component force acting on the inclined surface of the tapered portion 81a.
As a result, the positioning pin 81 and the positioning pin insertion portion 82 are guided to a position where their centers coincide with each other, the positioning pin 81 is inserted into the positioning pin insertion portion 82, and the positioning pin 81 and the positioning pin insertion portion 82 are moved. Engage. Thus, the taper part 81a functions as an engagement guide part.

As described above, the ruled line blade 12 and the ruled line groove 21 are set so as to automatically overlap in the vertical direction when the positioning pin 81 and the positioning pin insertion portion 82 are engaged with each other. Alignment with 20 is completed.
Thereafter, the face plate receiver 50 is stopped from ejecting compressed air from the air supply hole 72, and the face plate 20 contacts the face plate receiver 50 by its own weight.
Next, in the punching machine 1, the magnet chuck 73 of the lower surface plate 40 is operated, and the horizontal position of the face plate 20 with respect to the face plate receiver 50 is fixed.
The lower surface plate 40 is moved downward, the engagement between the positioning pin 81 and the positioning pin insertion portion 82 is released, and then the positioning pin 81 is removed from the face plate 20.

As described above, since the position of the face plate 20 in the horizontal direction is fixed by the magnet chuck 73, the die 10 and the face plate 20 are arranged at the punchable position even when the positioning pin 81 is removed. The maintained state is maintained.
The punching machine 1 transports the printing book between the punching die 10 and the face plate 20 by the printing book transport device 60, and punches the printing book to produce a blank for the paper container.

As described above, according to the punching machine 1 of the embodiment, the following effects can be obtained.
(1) When the punching machine 1 inserts the positioning pin 81 into the positioning pin insertion portion 82 and engages them, the punching die 10 and the face plate 20 are automatically arranged at the punchable position. And the face plate 20 can be easily aligned on the punching machine 1.
(2) Since the face plate receiver 50 supports the face plate 20 in a floating state when the die 10 and the face plate 20 are aligned, the face plate 20 can be easily slid. Therefore, the alignment work of the face plate 20 is easy.
(3) Since the tapered portion 81a is provided at the tip of the positioning pin 81, the positioning pin 81 can be securely inserted into the positioning pin 81 even if the positions of the positioning pin 81 and the positioning pin insertion portion 82 do not overlap in the vertical direction. 82 can be inserted.
(4) Since the magnet chuck 73 is provided in the face plate receiver 50, the face plate 20 can be fixed to the face plate receiver 50, and the operation of the punching machine 1 at the time of blank manufacture is stabilized. Further, once the alignment between the punching die 10 and the face plate 20 is completed, even if the positioning pin 81 is removed from the face plate 20, the state where the punching die 10 and the face plate 20 are arranged at the punchable position is maintained.
(5) Since the positioning pin 81 is detachably provided on the face plate 20 and is removed during the punching operation, the positioning pin 81 and the positioning pin insertion portion 82 do not come into contact with each other, and wear of these can be prevented.

(Modification)
The present invention is not limited to the embodiments described above, and various modifications and changes are possible, and these are also included in the technical scope of the present invention.
(1) The configuration of the punching machine of the present invention is not limited to that of the embodiment, and can be appropriately changed. For example, in the embodiment, the engaged portion is a positioning pin formed in a columnar shape, but the shape thereof may be, for example, a key shape formed in a rectangular parallelepiped shape. In the embodiment, the positioning pin is provided on the face plate. However, the arrangement of the positioning pin (engaged portion) and the positioning pin insertion portion (engaging portion) is not limited thereto. A positioning pin insertion portion may be provided on the face plate. Further, in the embodiment, two positioning pins are provided at the diagonals of the face plate. However, the number of positioning pins is not limited to this. For example, a total of four positioning pins may be provided, one at each of the four corners. Good.
(2) In the embodiment, compressed air is supplied between the face plate receiver and the face plate to reduce the sliding resistance of the face plate with respect to the face plate receiver. Further, a layer formed of a material having a relatively low friction coefficient such as Teflon (registered trademark) may be provided. Further, a magnet may be provided on the face plate, and a repulsive force may be generated between the face plate and the face plate to be supported in a floating manner.
(3) The magnetic force fixing portion of the embodiment is a magnet chuck provided with an electromagnet. However, the configuration of the magnetic force fixing portion is not limited to this, and for example, a magnet that is movable in the vertical direction is provided on the face plate holder. The face plate may be fixed by approaching or separating the face plate. Further, a vacuum suction device may be arranged on the face plate holder, and the face plate may be fixed to the face plate holder by this suction force. Furthermore, you may use together the fixation by said attraction force, and a magnetic force fixing | fixed part.
(4) Although the taper part which is an engagement guide part was provided in the front-end | tip part of the positioning pin in the Example, an engagement guide part is not restricted to this, For example, the front-end | tip part of a positioning pin insertion part is a mortar. It may be formed in a shape.

It is a perspective view which shows the punching machine of Example 1. FIG. It is a figure which shows the cutting die and face plate with which the punching machine of FIG. 1 was equipped, (a), (b) is a perspective view and a side view, respectively. It is a perspective view which shows the face plate receptacle with which the punching machine of FIG. 1 was equipped.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Punching machine 10 Punching die 20 Face plate 30 Upper surface plate 40 Lower surface plate 50 Face plate holder 60 Printing book transport apparatus 70 Face plate position adjustment part 72 Air supply hole 73 Magnet chuck 80 Positioning part 81 Positioning pin 81a Taper part 82 Positioning pin insertion part

Claims (5)

Die cutting,
A face plate disposed opposite to the die and provided so as to be relatively movable in a direction approaching and separating from the die;
A support portion that slidably supports the face plate in a plane perpendicular to the direction in which the face plate approaches and separates from the die;
An engaging portion provided in the die,
An engagement portion that is formed at a position facing the engagement portion in the face plate, and that engages with the engagement portion as the face plate is moved from a separated state to an approach state;
The punching machine, wherein the punching die and the face plate are disposed at a punchable position in an engaged state between the engaging portion and the engaged portion. The punching machine according to claim 1,
At least one of the engaging portion and the engaged portion includes an engagement guide portion that guides the engagement at a tip portion thereof. In the punching machine according to claim 1 or 2,
A punching machine comprising an air supply unit for supplying compressed air between the support unit and the face plate. In the punching machine according to any one of claims 1 to 3,
The punching machine, wherein the support part includes a magnetic force fixing part that fixes the position of the face plate with respect to the support part by magnetic force. In the punching machine according to any one of claims 1 to 4,
At least one of the engaging portion and the engaged portion is a protrusion that is detachably attached to the punching die and the face plate.

Images