JP2019195904A - Punching chip removal device in rotary die cutter - Google Patents

Abstract

To surely miss a page in the prescribed timing by surely holding punching chips after punching up to the prescribed rotation timing.SOLUTION: A punching chip removal device is constituted of a pushing-out face bar (2) filled-stored on the inside in a plan view of a punching shape (TS) of a punching blade (1) and in a lower part of a side view more than an edge and an arm (3) composed of a spring steel material for holding the pushing-out face bar (2) in a tip part along a peripheral surface of a knife cylinder (R) by fixing a part by a hinge on the peripheral surface of the knife cylinder (R). The arm (3) is movable by the hinge after punching of the punching blade (1), so that the pushing-out face bar (2) of the tip part of the arm (3) moves in the circular arc direction along a tip locus of the arm above a cylinder peripheral surface (RF), and at least a part of an abutting surface (2F) of the pushing-out face bar (2) becomes a projection state (S2) of projecting to a higher position than the edge of the punching blade (1), and a punching chip (T) is removed.SELECTED DRAWING: Figure 4A

Description

The present invention relates to a punching scrap removing device for removing punching scraps after punching in a rotary die cutter for punching a sheet material such as corrugated cardboard into a predetermined punching shape. About.

Conventionally, as a punching scrap removing device for removing punching scraps from a corrugated cardboard sheet, a hinge member is attached to the outer periphery of a punching blade attached to a punching die, and the tip of the hinge member is arranged below the punching scraps by the hinge member. A movable scraping arm and a coil spring are supported, and a pressing piece provided on the coil spring is used to urge the scrapping arm toward the closing direction overlapping the outer peripheral surface of the punching die ( Patent Document 1). The push rod is inserted into a through hole formed in the punching die and the knife cylinder and covered with the dust dropping arm, and the inside of the knife cylinder is rotated around an eccentric position with respect to the center of the knife cylinder. An eccentric cylinder is provided, and the eccentric cylinder moves the push rod radially outward of the knife cylinder. By pushing the push rod, the debris is dropped and the arm is swung in the standing direction to push out the punched debris from the punching die. I am doing so.
Conventionally, as a punching dust removing tool for a rotary die cutter, it is possible to suppress wear of a swingable scraping arm and a contact portion of a coil spring that urges the scraping arm toward the outer periphery of the punching die. What was made possible is disclosed (patent document 1). This is because an arm support pin is provided on the hinge member attached to the outer periphery of the punching die, and a spring support pin is provided in parallel with a space between the arm support pins, and the arm support pin scrapes off one end of the arm. A coil spring provided with coil portions at both ends of a U-shaped pressing piece is supported by a spring support pin, and the scraping arm is attached to the outer periphery of the punching die by the pressing piece. Rush. By attaching the roller to the tip of the pressing piece in a rotatable manner, the contact between the pressing piece and the scrapping arm is used as a rolling contact to suppress wear at the contact portion and to improve durability.

Japanese Utility Model Publication No. 63-7993 Japanese Utility Model Publication No. 6-34958

However, in the above conventional punching machine or punching scrap removal device, the stripping pin with the face plate protrudes as it is, or the stripping pin that is fixed to the leaf spring protrudes as it is. Is inferior. For this reason, the punching waste remains in the corrugated cardboard sheet after punching, or the punching scrap cannot be removed while it is fitted in the punching blade, or the punching scrap is caught between the devices without dropping at a predetermined timing. There was a problem of missing pages such as
In particular, a punching blade that punches a predetermined range by rotary rotation continuously performs a punching process. The punching waste after punching should be discharged into the bucket at a predetermined rotary timing.If the punching waste is lost, the punching waste is unintentionally caught in the rotating part, and the process must be stopped each time. Become. For this reason, in order to increase the productivity of processing, it is required to reliably discharge punched scraps after punching at a predetermined rotary rotation timing.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a punching scrap removing device that reliably holds punched scraps after punching until the rotation timing of a predetermined rotary drum and reliably drops the punched scraps at a predetermined timing.

In order to solve the above problems, the present invention takes the following technical means.

(1) The punching scrap removing device in the rotary die cutter of the present invention is
In the conveying shape (OS) of the sheet-like punching object (O) conveyed on the peripheral surface of the knife cylinder (R) by the punching blade (1) having a predetermined peripheral shape mounted on the peripheral surface of the knife cylinder (R) In the rotary die cutter that performs the punching of a predetermined punching shape (TS), the punching scrap removal device for removing punching scraps (T) at the time of punching,
A plan view of the punching shape (TS) of the punching blade having a contact surface on the upper surface, which is combined in a plane inside the closed circumferential shape of one punching blade and is divided and accommodated. A plurality of extruded face materials (2) that are filled and housed in the lower side of the side view than the blade edge,
Together along the knife cylinder (R) peripheral surface part is hingedly fixed on the knife cylinder (R) circumferential surface of the rotary die cutter, and one-to-one correspondence to the plurality of extrusion surface material (2), each extruded A plurality of arms (3) holding a face material (2) at each tip, and
Each of the arms (3) is composed of an elastic plate extending in a direction facing each other from a separate hinge position in the circumferential direction of different cylinder phases,
A notch hole (2H) having a closed shape is formed inside the plate surface of each extruded face member (2) . The inside of the notch hole (2H) is loosely inserted so that the holding blade (6) is a knife cylinder ( R) It is erected and fixed on the peripheral surface.
The holding blade (6) engages or enters the punching shape (TS) portion to be punched, so that the punching waste (T) punched by the punching blade (1) is removed from the peripheral shape of the punching blade (1). Each arm (3) is hinged at different timings from different cylinder (R) phase hinge positions at different tilt angles and in mutually opposite directions (rotates around the hinge fixed axis) ) by,
The extruded face material (2) corresponding to the tip portion of each arm (3) is released from the state of being filled and accommodated in order, and is located above the peripheral surface of the cylinder (R) and the tip locus of the arm (3). Along with the movement toward the tip side of the arm (3), it moves in the arc direction around each hinge position, so that at least a part of the contact surface of the extruded face material (2) is the cutting edge of the punching blade (1) Projecting to a higher position than
The plurality of extruded face materials (2) in the protruding state are opened one by one in directions away from each other while changing the inclination direction in an oblique direction with respect to the punching surface of the punching blade (1) and above the holding blade. The punching scraps (T) held by the holding blades are protruded in the diagonal direction opposite to each other from the end portions of the contact surfaces, and each contact surface has a spring reaction force of the spring steel material. Each of the abutting portions is pushed out in order at different timings while pressing the surface, and is removed with a moment due to hinge rotation of each arm (3).

The sheet-like punching object O including the corrugated cardboard material is conveyed at a predetermined conveyance position with respect to the knife cylinder (R) while being in contact with a predetermined position on the peripheral surface of the knife cylinder (R) as the knife cylinder (R) is rotated. . Further, on the peripheral surface of the knife cylinder (R), a punching blade (1) having a peripheral shape along a predetermined punching shape TS required for the punching object O is attached with the blade tip positioned above the peripheral surface of the knife cylinder (R). It is done. The extruded face material (2) is housed along the inner side of the circumferential shape of the punching blade with the contact surface on the upper surface. In a normal state, the contact surface is housed in the circumferential direction of the punching blade and below the blade edge. After the punching object (O) is conveyed on the peripheral surface of the knife cylinder (R) and a predetermined portion of the punching object O is punched by the punching blade, the contact surface protrudes upward from the cutting edge of the punching blade. By being in the protruding state, it comes into contact with the punching object O. And in the said protrusion state, the contact surface of the shape along the inner side of punching shape (TS) has a spring reaction force of a spring steel material, and presses a punching object O part reliably, and pushes out punching waste reliably. It became something that could be done.

(2) In the punching scrap removing device in the rotary die cutter,
The extension direction front side of each arm (3) has a wide part whose width is expanded to one side or both sides,
It is preferable that the distal end portion of each wide arm (3) is movably inserted into the insertion hole (20H) provided in advance near the center of the side surface of each extruded face member (2).
(3) The rotary die cutter is configured to further include an extrusion pin (P) that is housed in the knife cylinder (R) and protrudes from the cylinder peripheral surface according to the rotational phase of the cylinder,
The push pin (P) is arranged so as to protrude at a position overlapping the arm (3), and abuts from the back side of the arm (3) when protruding to push the arm (3) upward,
Further, the extruded face material (2) in the protruding state protrudes obliquely while changing the inclination direction from the cutting edge of the punching blade as the arm (3) is pivoted and the spring is deformed,
It is preferable that the punching scraps (T) are pressed against the surface diagonally by the moment by the hinge rotation of the arm (3) and the spring reaction force of the arm (3) by the contact of the push pin (P).
(4) Extrusion pins (P) are accommodated at different phase positions in the knife cylinder (R) corresponding to the arms (3),
These multiple push pins (P) all protrude only at one specific cylinder phase,
It is preferable that the plurality of arms (3) are hinged one by one at different knife cylinder (R) phase timings by the protrusions of the push pins (P).

The arm (3) is rotated upward by the push pin (P) and is deformed by the spring, so that the timing of pushing out the punching waste can be reliably controlled, and the push force by the push pin (P) is applied to the tip of the arm (3). It can be efficiently transmitted as a superposition effect of the moment and the spring reaction force. That is, the extrusion face material (2) is moved along the arc trajectory by the rotation of the extrusion pin (P), and an extrusion moment including the arm length is applied to the extrusion face material, and the extrusion pin (P The arm (3) is elastically deformed centering on the push-out portion by (3), and the elastic restoring force of the spring steel material is transmitted to the push-out face material (2) at the tip of the arm as the spring reaction force of the arm (3).
The extruded face material (2) is in surface contact with the entire punching surface in an oblique direction and while changing the inclination direction, so that the punching object O (punching waste) punched by the punching blade (1) is sequentially moved from the end. It is possible to more reliably separate the punching waste from the punching object O by pressing the surface.

In the punching scrap removal device in any one of the rotary die cutters,
The arm (3) is loosely inserted into the insertion hole (20H) provided in the side surface of the extruded face material (2), so that the extruded face material (2) is gently inserted and held so as to be freely movable. And
Further, the arm (3) is provided with an insertion hole (3H) through which the push pin (P) can be inserted in a portion overlapping with the planar arrangement portion of the push pin (P), and the protruding push pin (P). The contact surface material (5) that comes into contact with the insertion hole (3H) is detachably attached so as to be slidably displaceable to either the state covering the insertion hole (3H) or the state deviating from the insertion hole (3H). ,
The push pin (P) has an axial elastic repulsion material (PE) at the head which is a protruding end, and a receiving hole (RH20) provided in the knife cylinder (R) from the receiving portion opposite to the protruding end. )
When the accommodated push pin (P) protrudes, the elastic repulsion material (PE) of its head abuts against the contact surface material (5), and the elastic repulsion force at the time of contact is the arm (3) or the extrusion face material ( It is preferable that the extruded face material (2) is in a protruding state along with free movement on the tip side of the arm (3).
A receiving hole toward the center of the cylinder is formed in the receiving position of the push pin on the cylinder peripheral surface, and the push pin is protruded into the receiving hole so that the protruding position of the pin is set to a predetermined arm position. Can be securely arranged. In addition, the elastic material provided at the tip of the push pin does not directly contact the arm but the structural material of the push pin makes contact with the contact surface material (fixed clip), making it easy to replace the contact part when it is consumed It will be something.

Moreover, in the removal device for punching scraps in any of the rotary die cutters,
Inside the peripheral shape of the punching blade, a holding blade that protrudes upward is fixed in the notch (2H) formed in the extruded face material or in the gap portion between the extruded face material and the punching blade,
This holding blade holds or punches into the punching shape TS portion of the punching object O, thereby holding the punching waste within the peripheral shape of the punching blade,
It is preferable that the punched-out scraps held by the holding blade are pushed out and discharged by the protruding face material in the protruding state protruding above the holding blade. By holding or plunging the holding blade, it can be reliably held within the peripheral shape of the punching blade until the punching waste is discharged.

Moreover, in the removal device for punching scraps in any of the rotary die cutters,
A plurality of extruded face materials are respectively held by respective corresponding arms inside the circumferential shape of one punching blade, and the plurality of extruded face materials (2A, 2B...) ) Are combined and accommodated in the inner plane of the circumferential shape,
The individual arms (3A, 3B) are hinged separately at the previous hinge positions in different arm directions as seen from the center of the circumferential shape of the one punching blade (1),
The plurality of arms are movable from different hinge positions, so that the plurality of extruded face members (2A, 2B) in the punching blade (1) are inclined from the cylinder peripheral surface (RF) at different inclination angles. Project upwards,
It is preferable that the extruded extruded face materials (2A, 2B) sequentially press the surface to be punched O to remove punching waste.

By comprising in this way, the extrusion face material (2A, 2B ...) divided | segmented into plurality in the planar shape of one punching hole is filled and accommodated as the state combined in one plane. Each of the divided extruded face materials (2A, 2B...) Is held at different hinge positions by the corresponding arms (3A, 3B...) On a one-to-one basis. , 3B... Are hinged at different inclination angles. Thereby, each extrusion face material (2A, 2B...) Combined in the plane of one punching hole protrudes while being inclined in different inclination directions, thereby more reliably pushing out the punching scraps. Can be done.

Moreover, in the removal device for punching scraps in any of the rotary die cutters,
A plurality of extruded face materials (2A, 2B ...) are respectively held by the corresponding individual arms (3A, 3B ...),
The plurality of extruded face materials (2A, 2B...) Are combined and accommodated in a plane inside the circumferential shape of one punching blade (1).
The individual arms (3A, 3B,...) Are separately hinged to the circumferential positions of the cylinder phases that are different from each other on the cylinder surface,
Extrusion pins (P) are respectively accommodated at different phase positions in the cylinder corresponding to the arms (3A, 3B...)
These multiple push pins all protrude only at one particular cylinder phase,
By projecting each push pin, the plurality of arms can be hinged from different hinge positions at different knife cylinder (R) phase timings, so that a plurality of extruded face materials (2A) in one punching blade (1) can be obtained. , 2B) project upward from the cylinder peripheral surface (RF) at different timings,
It is preferable that the extruded extruded face materials (2A, 2B) sequentially press the surface to be punched O to remove punching waste.

By comprising in this way, the extrusion face material (2A, 2B ...) divided | segmented into plurality in the planar shape of one punching hole is filled and accommodated as the state combined in one plane. Further, each of the divided extruded face materials (2A, 2B...) Is held at hinge positions of different cylinder phases by the respective arms (3A, 3B. The arms (3A, 3B...) Are hinge-movable only at the timing when the push pin is located at a specific one cylinder phase. Thereby, each extrusion face material (2A, 2B ...) combined in the plane of one punching hole will protrude at a different timing, respectively, and contact punching of punching waste can be performed more reliably. I can do it.

(5) In the scrap removal device in any one of the rotary die cutters,
The punching blade (1), the extruded face material (2), and the arm (3) are all part of the curved base R1 that is partially covered at an arbitrary position on the peripheral surface of the knife cylinder (R). Provided in the plate surface,
Further, on the peripheral surface of the knife cylinder (R), a plurality of fixing holes (RH10) for fixing the base R1 to an arbitrary position and a plurality of housings for housing the push pin at an arbitrary position. A predetermined number of holes (RH20) are provided in advance,
The base R1 is
A punching shape TS of a predetermined arrangement required for the punching object O conveyed in contact with the cylinder circumferential surface;
Among the accommodation holes (RH20) on the cylinder peripheral surface, a specific accommodation hole (RH20) position located at the tip of any one of the surrounding four directions seen from the punching hole,
Out of the fixed holes on the cylinder peripheral surface, the peripheries viewed from the range including both the punched holes and the specific receiving holes (RH20) (one or more pairs of four symmetric directions (both left and right sides in plan view) Or a plurality of specific fixing hole positions located in the vicinity of the tip in both the upper and lower directions), and a plate surface in a range including
The arm passes through a hole side in one specific direction in any one of the four surrounding directions viewed from the punching hole and the hole upper portion of the specific accommodation hole position, and further excludes the specific fixing hole position (R1) It is preferable to have an arm shape that connects up to an arbitrary hinge position in the plate surface.

(6) In the punching scrap removing device in the rotary die cutter, the arm shape is a punch hole and a punch target from a plurality of types of arm shape groups having a plurality of length patterns or width patterns prepared in advance. Any one selected according to each shape is preferable.
Preferably, the arm avoids the position of the specific fixing hole in the plate surface of the base (R1) from a specific hole side which is a hole side in any one of four directions around the punched hole. It has an arm shape that connects up to an arbitrary hinge fixing position arranged in a predetermined range at an arbitrary position and covers all the upper part of the specific pin accommodation hole RH20. The arm shape includes a plurality of direction patterns prepared in advance (for example, each direction pattern including a straight type, a right bent type, a left bent type, and a saddle type) and a plurality of length patterns or width patterns (for example, rightward). It is preferable that it is any one selected from a plurality of types of arm shape plans consisting of a combination of a plurality of shape patterns with a wider width and a wider width to the left.
<Selecting the arm shape>
The arm shape is preferably selected according to the size of the extruded face material and the position of the accommodation hole RH20 of the extrusion pin. Specifically, the arm of a plurality of types of patterns (refer to the example of FIG. 8) prepared in advance by superimposing the pin accommodation position, the base mounting hole, the arrangement and shape positions of the punch holes, and the required drawings of the punch shapes TS It is preferable that the shape is an arm shape selected as having an arm range excluding the attachment hole.

  The present invention is configured as described above, and the extruded face material along the punched shape is in a projecting state in which the surface contact is made with the spring reaction force of the spring steel material, so that the punching waste can be discharged efficiently. became.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view for explaining a state of a punching scrap removing apparatus according to a first embodiment of the present invention immediately before punching. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view for explaining a state of a punching scrap removing apparatus according to a first embodiment of the present invention before punching and before discharging. BRIEF DESCRIPTION OF THE DRAWINGS FIG. The perspective view of the state before attachment of the base unit of the punching dust removal apparatus of Example 2 of this invention. The perspective view of the state after attachment of the base | substrate unit of the punching dust removal apparatus of Example 2 of this invention. Sectional drawing explaining each state in the punching state (a) and discharge | emission state (b) of the punching scrap removal apparatus of Example 2 of this invention. Sectional drawing explaining each state in the punching state (a) and discharge | emission state (b) of the punching scrap removal apparatus of Example 3 of this invention. The 1st layout figure in the punching waste removal apparatus of Example 4 of this invention. The 2nd layout figure in the punching waste removal apparatus of Example 4 of this invention. The arm shape example of the arm used in the punching waste removal apparatus of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings showing a conventional example and examples of the present invention. In any of the embodiments, the present invention removes the punching waste T at the time of punching in a rotary die cutter that performs punching in a predetermined shape by a punching blade 1 having a predetermined peripheral shape mounted on the peripheral surface of the knife cylinder R. This is a punching scrap removal device.
And the removal device of the punching waste in the rotary die cutter of this invention is
A punching blade 1 having a predetermined circumferential shape fixed on the circumferential surface of the knife cylinder R and having a cutting edge 10 disposed at an upper end;
Extruded face material 2 having an abutting surface 2F that fits inside the circumferential shape of the punching blade 1 on the upper surface and filled and accommodated inside the plan view of the punching shape TS of the punching blade and in the lower side of the blade tip side view. When,
An arm 3 made of a spring steel material made of an elastic material, which is partially hinged on the peripheral surface of the knife cylinder R of the rotary die cutter, extends in the rotation direction, and holds the extruded face material at the tip.
As the punching scrap removal operation of the removing device of the present invention, the arm 3 is hinged after the punching blade is punched, so that the extruded face material 2 at the tip of the arm 3 is above the cylinder peripheral surface (RF). It moves in the arc direction along the tip trajectory of the arm, and at least a part of the contact surface 2F of the extruded face material 2 is in a projecting state (S2) projecting to a position higher than the cutting edge of the punching blade 1;
The extruded face material in the projecting state (S2) is characterized in that the punching scraps T are removed by pressing the surface with the spring reaction force of the spring steel material on the punched target portion after punching.

The corrugated cardboard sheet to be punched O comes into contact with the peripheral surface of the knife cylinder R and is conveyed along with the rotation. Further, on the peripheral surface of the knife cylinder R, a punching blade 1 having a peripheral shape along a predetermined punching shape TS required for the punching object O is mounted with a blade tip above the peripheral surface of the cylinder. The extruded face material 2 is accommodated with the contact surface on the upper surface along the circumferential inner portion of the punching blade. In a normal state, the contact surface is housed in the circumferential direction of the punching blade and below the blade edge. Then, after the punching object O is conveyed on the peripheral surface of the knife cylinder R and a predetermined portion of the punching object O is punched by the punching blade, the contact surface protrudes upward from the cutting edge of the punching blade. Thus, it comes into contact with the punching object O. And in the said protrusion state, the contact surface of the shape along the inner side of punching shape TS has the spring reaction force of a spring steel material, and can press-out punching waste reliably by surface-pressing to a punching object part. It became a thing. Hereinafter, each embodiment will be described in detail.

(Configuration of rotary die cutter)
Further, as shown in FIGS. 1 to 3, the rotary die cutter used in the punching waste removing apparatus according to the first embodiment of the present invention is composed of a horizontal cylindrical hollow cylindrical body having a cylindrical hollow portion. In the vicinity of the upper part of the knife cylinder R, the rotary (rotary) knife cylinder R that rotates about the axis, the base R1 that is attached to an arbitrary position on the surface of the knife cylinder R and that is curved in the shape of a partial cylindrical side surface, A rotary ampil cylinder R2 arranged in parallel with the horizontal axis of the cylinder R, and an internal knife comprising a horizontal axis cylindrical body provided eccentrically with respect to the axis of the knife cylinder R in the hollow portion of the knife cylinder R And a cylinder R3. Of these, the cylindrical knife cylinder R and the ampil cylinder R2 are arranged close to each other, and are controlled to rotate in opposite directions opposite to each other.

(Punching procedure)
To explain the punching procedure by the rotary die cutter, the corrugated cardboard sheet to be punched O is sandwiched between the base R1 attached to the surface of the cylindrical knife cylinder R and the ampil cylinder R2, It is conveyed by the rotation of each cylinder. During the conveyance, the punching blade 1 fixed on the surface of the base R1 is rotationally moved to the phase position of the gap portion between the ampil cylinder R2 and the punching object O being conveyed becomes the punching blade 1 The punched portion T0 surrounded by is punched as a partial hole (FIG. 1). After punching, a punching hole TH is formed in the punching object O (FIG. 2). The punching scraps punched and removed from the punching hole TH portion are pierced by a comb-shaped holding blade 6 standing and fixed on the base R1 inside the punching blade 1 so as to be on the base R1 unit. It is held on the removal device side and rotates together with the knife cylinder R until it reaches the phase position of the discharge angle while being held (FIG. 2). A buffer material RS (RS1, RS2) is partially provided on the surface of the base R1, and the buffer material RS is provided on the entire cylinder peripheral surface of the ampil cylinder R2. These cushioning materials RS are compressed and deformed when the punching object O is sandwiched, and serve as contact means for reliably transporting the punching object O while suppressing deformation.

(Holding blade 6)
The holding blade 6 will be described in detail. The extruded face material 2 filled in the inside of the peripheral shape of the punching blade 1 has a slit-shaped notch 2H penetrating in the thickness direction of the plate inside the plate surface. A plurality of rows are provided, and the holding blade 6 is fixed upright by loosely inserting the inside of the notch hole 2H. The lower end of the holding blade 6 is fixed together with the punching blade 1, and a comb-like locking blade is provided at the upper end with a blade height lower than that of the punching blade 1. In the accommodated state (S1) in which the extruded face material 2 is accommodated in the hollow, the cutting edge of the locking blade of the holding blade 6 is in a state of protruding upward from the contact surface 2F of the extruded face material 2. Further, in the protruding state (S2) in which the extruded face material 2 protrudes from the inside of the recess hole, the edge of the locking blade of the holding blade 6 enters the notch hole 2H of the extruded face material 2 and is more than the contact surface 2F. Hidden downward. In this way, the locking blade at the tip of the holding blade 6 is punched by being locked or plunged into the punched shape TS portion of the punching object O according to the housed or protruding state (S1) (S2) of the extruded face material 2. The scrap is held within the peripheral shape of the punching blade (FIGS. 4A, B and 5a). When the extruded face material 2 is in the protruding state shown in FIG. 5b, the extruded face material 2 protrudes above the holding blade 6 to push out and discharge the punching waste T held by the holding blade. The holding blade 6 can be reliably held within the circumferential shape of the punching blade until the punching waste is discharged by the locking or rushing of the holding blade 6.

(Extruded pin P)
Here, the knife cylinder R is previously provided with a receiving hole RH20 capable of accommodating the push pin P toward the center of the cylinder, and the base hole R1 is provided with an insertion hole 3H through which the push pin P can be inserted in advance. Drilled in the direction. The base R1 is attached to the knife cylinder R with the insertion hole 3H and the accommodation hole RH20 aligned, and a cylinder corresponding to the rotational phase of the knife cylinder R is placed in the alignment insertion hole 3H and the accommodation hole RH20. An extrusion pin P protruding from the peripheral surface is accommodated.

(Extrusion mechanism of push pin P)
Here, the protrusion mechanism of the push pin P will be described. The push-out pin P has a pin length longer than the cylinder thickness of the cylinder, and can slide in the protruding and entering direction along the hole length direction in the accommodation hole RH20 and the insertion hole 3H. When the rotational phase of the cylinder is in the state before punching (FIG. 1), the pin rear end protrudes into the hollow portion of the knife cylinder R, and the pin tip PE does not protrude from the insertion hole 3H of the base R1 (S1). ). However, as the rotation of the cylinder proceeds (FIG. 2), the inner end of the pin contacts the inner roll R3 arranged eccentrically in the hollow portion and is pushed radially outward, so that the surface of the inner roll R3 becomes the maximum eccentric position. When it rotates to a predetermined phase position (FIG. 3), it will be in the protrusion state (S2) where the pin back end part was pushed most by the internal roll R3, and the pin front-end | tip part PE protruded most. The push pin P is also automatically accommodated by being always elastically biased in the accommodation direction. With this mechanism, the push pin P protrudes only when the knife cylinder R is in a predetermined specific phase position.

In the punching scrap removing apparatus in the rotary die cutter according to the first embodiment of the present invention shown in FIGS. 1 to 3, the punching blade 1, the extruded surface material 2, and the arm 3 are all the knife cylinder R circumferential surface. It is provided on the surface of the plate surface of the curved base R1 having a partial cylindrical side surface which is partially covered and fixed at an arbitrary upper position. These are mounted and fixed by a fixing pin RP as a base R1 unit according to the position of a fixing hole RH10 provided in the cylinder peripheral surface (FIGS. 1 to 3).

Here, the push pin P is disposed so as to protrude at a position overlapping the arm 3, and abuts from the back side of the arm 3 to push the arm 3 upward when protruding. In addition, the extruded face member 2 in the protruding state protrudes obliquely while changing the inclination direction from the cutting edge of the punching blade as the arm 3 rotates and the spring is deformed. The punching waste T is pressed against the surface diagonally with the spring reaction force of the arm 3 due to the contact of the pin P (FIG. 3). FIG. 3 shows a protruding state in which the extruded face material 2 attached to the tip of the arm 3 extending in parallel with the rotation axis of the cylinder protrudes obliquely. The punching waste T separated from the punching object O by the punching blade 1 continues to rotate together with the knife cylinder R while being held by the holding blade 6 immediately after punching, and the arm rotates upward only at a specific rotational phase, and the extruded face material. 2 protrudes. Thereby, the punching waste T is reliably discharged into the cargo C.

Here, the extruded face material 2 in the protruding state protrudes obliquely while changing the inclination direction from the cutting edge of the punching blade as the arm 3 rotates and springs, and the moment due to the rotation of the arm 3 hinges, The punching waste T is pressed against the surface diagonally with the spring reaction force of the arm 3 due to the contact of the push pin P. At this time, the arm 3 made of an elastic spring steel material is rotated upward by the push pin P and is deformed by spring, thereby reliably controlling the push-out timing of the punching waste and the push-out force by the push pin P to the tip of the arm 3 Can be efficiently transmitted as a superposition effect of the moment applied to the spring and the spring reaction force. That is, when the push pin P is pushed, the extruded face material 2 moves along the arc trajectory due to the rotation of the arm, and an extruded moment including the arm length is given to the extruded face material, and the pushing position by the push pin P (approx. The arm 3 is elastically deformed around the contact point), and the elastic restoring force of the spring steel material is transmitted to the pushing face material 2 at the tip of the arm as a spring reaction force of the arm 3.
The extruded face material 2 is in surface contact with the entire punched surface in order from the oblique direction and while changing the inclination direction, thereby pressing the punching waste T of the punching object O punched by the punching blade 1 in order from the end. The punching waste can be more reliably separated from the punching object O.

4A and 4B show the base R1 unit of the punching dust removing device in the rotary die cutter of the second embodiment. In the base R1 unit of the present embodiment, a hollow hole having a shape including all of the punching blade 1, the arm 3, and the hinge fixing device 41 for fixing the hinge 4 of the arm 3 is formed on the surface of the base R1. The bottom of the hollow is a saddle-shaped curved surface lower than the surface of the base R1. The extruded face member 2, the arm 3, the hinge 4, and the hinge fixing device 41 are all close to the hole bottom and accommodated in the recessed hole so as not to protrude from the surface of the base R1. Buffer materials RS1 and RS3 made of a foamed resin plate are attached to the surface of the base R1 along the vicinity of the periphery of the hollow. Also, a buffer material RS2 made of a foamed resin plate having a plate surface that does not protrude from the arm shape is attached to the surface of the arm 3 (FIGS. 4A and 4B). These cushioning materials RS1, RS2, and RS3 abut on the punching object O side during the punching process shown in FIG. 1 to prevent damage to the punching object O due to direct contact between the base R1 and the punching object O. Moreover, the buffer material RS provided on the entire cylinder surface of the ampil cylinder R2 serves to stably transport the sheet to be punched O.

The arm 3 is loosely inserted and held so as to be freely movable in a predetermined manner by being loosely inserted into an insertion hole 20H provided on the side surface of the extruded face material 2 (FIGS. 4A and 4B). ). The punching blade 1 is bent in the circumferential direction and is erected and fixed on the plate surface of the base R1, and as shown in FIGS. 4A and 4B, one side of the circumferential shape of the punching, that is, one side overlapping with the direction of the arm 3 is formed. A notch hole 1H is formed in the side surface so as to open downward in three directions. The extruded face material 2 has a slightly smaller plate shape with a predetermined gap inside the punched shape TS of the punching blade 1 and is filled and accommodated in the punched planar shape. Here, the arm 3 is inserted and fixed at a position on one side of the extruded face member 2 so as to be loosely inserted through the cutout hole 1H.

An insertion hole 20H that is slightly larger than the cross section of the arm tip 3E is formed on the side surface of the extruded face member 2 so that the arm tip 3E can be freely inserted. The arm tip 3E is inserted into the insertion hole 20H. Is inserted slowly with a predetermined play, that is, in a freely movable manner. However, since the arm tip 3E is surrounded by a notch hole 1H provided on one side of the punching blade 1 in a frame shape, it can move only within the range of the notch hole 1H. The extruded face material 2 does not come off.

(Arm 3)
The shaft 3 is fixed to the base end of the arm 3, and both protruding ends of the shaft 4 are pivotally supported on the base R 1 by the arm fixing member 41. Further, the arm 3 is provided with an insertion hole 3H through which the push pin P can be inserted at a portion overlapping with the position where the push pin P is disposed, and the clip-shaped contact surface material 5 covers the insertion hole 3H (s2) to It is detachably attached so as to be slidable to any state of the state (s1) shifted from the insertion hole 3H. The structural material of the push pin P does not directly contact the arm, but the elastic repulsion material PE provided at the tip of the push pin P makes contact with the contact surface material 5 so that the push pin P or the contact surface material 5 is used. It is easy to replace the contact parts when they are consumed.

As shown in FIG. 4A, in a state (s1) in which the contact surface material 5 is shifted from the insertion hole 3H, the insertion hole 3H and the accommodation hole RH20 are opened in alignment. In this state, the push pin P is accommodated, and after the accommodation, as shown in FIG. 4B, the contact surface material (5) is overlapped with the insertion hole 3H so that the contact surface material 5 covers the insertion hole 3H (s2). . In this state (s 2), the protruding push pin P is in contact with the back surface 51 of the contact surface material 5. When the push pin P is removed, the state (s2) is changed to the state (s1) in the reverse procedure.

(Extruded pin P)
The push-out pin P of the present embodiment has an elastic resilient material (PE) in the axial direction at the head which is a protruding end, and enters the receiving hole RH20 provided in the knife cylinder R from the receiving end opposite to the protruding end. Be contained. When projecting, the elastic repellent material (PE) of the head abuts against the contact surface material (5), and the elastic repulsive force at the time of contact is transmitted to the arm 3 or the extruded surface material 2, and to the front side of the arm 3 The extruded face member 2 that is loosely inserted is in a protruding state along with the loose movement.

In the punching scrap removal device in the rotary die cutter of Example 3 shown in FIG.
A plurality of extruded face materials are respectively held by respective corresponding arms inside the circumferential shape of one punching blade, and the plurality of extruded face materials (2A, 2B...) They are combined and accommodated in a plane inside the circumferential shape. Each of the arms (3A, 3B) is a cylinder surface that is a hinge position in a different direction as viewed from the center of the circumferential shape of the one punching blade 1, and has circumferential directions with different cylinder phases. Separately hinged in position.

Extrusion pins P are accommodated at different phase positions in the cylinder corresponding to the respective arms (3A, 3B...), And the plurality of extrusion pins all protrude only at a specific one cylinder phase.
The protrusions of the push-out pins allow the plurality of arms to be hinged at different knife cylinder R phase timings from different hinge positions. As a result, as shown in FIGS. 6a and 6b, the plurality of extruded face members (2A, 2B) in one punching blade 1 protrude upward from the cylinder peripheral surface (RF) at different timings. Further, the plurality of arms are movable from different hinge positions, so that the plurality of extruded face materials (2A, 2B) in one punching blade 1 are inclined from the cylinder peripheral surface (RF) at different inclination angles. Also projects upward. As shown in FIGS. 6b and 6c, the extruded extruded face members (2A, 2B) sequentially press the surface of the punching target to remove punching debris.

By comprising in this way, the extrusion face material (2A, 2B ...) divided | segmented into plurality in the planar shape of one punching hole is filled and accommodated as the state combined in one plane. Further, each of the divided extruded face materials (2A, 2B...) Is held at hinge positions of different cylinder phases by the respective arms (3A, 3B. The arms (3A, 3B,...) Can be hinged at different inclination angles, and the arms (3A, 3B,...) Can only be hinged when the push pin is positioned at a specific one cylinder phase. Move. Thereby, each extrusion face material (2A, 2B ...) combined in the plane of one punching hole protrudes while being inclined in different inclination directions at different timings. Thereby, contact | abutting extrusion of punching waste can be performed more reliably.

7A and FIG. 7B, in the punching waste removal apparatus of the rotary die cutter of Example 4, the punching blade (1), the extruded face material (2), and the arm (3) are all knife cylinders (R). ) Provided in the plate surface of the curved base R1 partially covered at an arbitrary position on the peripheral surface (similar to FIGS. 4A and 4B). However, unlike FIGS. 4A and 4B, in Example 4, a plurality of punching waste removal units each including a punching blade (1), an extruded face material (2), and an arm (3) are prepared. According to a plurality of punching shapes TS required for the punching object O, they are arranged in the most preferable layout in the board surface of one base R1 (FIG. 7B).

Further, on the peripheral surface of the knife cylinder (R) of the fourth embodiment, a plurality of fixing holes RH for fixing the base (R1) to an arbitrary position and the push pin are accommodated at an arbitrary position. Each of the plurality of receiving holes RH ′ is provided in a predetermined number greater than the necessary fixed number.

Further, as shown in FIGS. 7A and 7B, in the punching waste removing apparatus of the fourth embodiment, the cylinder surface RF, the conveyance shape OS of the punching target O, and the punching shape TS required as a specification for the punching target are illustrated in one drawing. A plurality of the shapes of the base R1 and the fixing position to the knife cylinder R, the receiving position of the push pin P in the knife cylinder R, and the arm shape are prepared in advance by drawing them in a predetermined procedure. It is automatically selected from the choices. 7A shows a group example of the arm shape group 3G as an arm shape option.

In FIG. 7A, a development view (cylinder surface RF) of the fixing hole RH and the accommodation hole RH ′ provided on the peripheral surface of the knife cylinder R of Example 4 is superimposed on this development view (cylinder surface RF). A first layout diagram of a conveyance shape OS of a punching object O and a punching shape TS (a punching waste T portion) required for the conveyance shape OS is shown. This first layout diagram can be automatically drawn by a processing apparatus having a display and a data storage area according to a predetermined procedure.

(Procedure for drawing the first layout diagram)
The drawing procedure of the first layout diagram (FIG. 7A) is shown below. On the cylinder surface RF that is the peripheral surface of the knife cylinder R, a plurality of fixing holes and accommodation holes are arranged in advance in the vertical and horizontal directions. FIG. 7A shows a development view of the cylinder surface RF, and a conveyance shape OS of the punching target O having a necessary punching shape TS is laid out at a predetermined conveyance position, overlapping the development view of the cylinder surface RF. (The two-dot chain line part of FIG. 7A). This is the layout of the conveyance shape OS on the cylinder surface RF. The punching target OS is transported on the cylinder surface RF according to the layout of the transport shape OS.

Next, in accordance with the layout of the conveyance shape OS on the cylinder surface RF, a board shape of the base R1 having a rectangular frame shape that is slightly larger than the conveyance shape OS is created (thick line frame portion in FIG. 7). At this time, the board shape of the base R1 includes all the conveyance shapes OS of the punching object O laid out in the cylinder surface RF, and further, specific fixed hole RH10 positions located in the vicinity of each of the four sides around the conveyance shape OS. The shape is set as a rectangular frame of the included range. Along with this shape setting, a plurality of specific fixing holes RH10 to be used for fixing the base R1 are selected and set. In FIG. 7, the four corners of the base R1 are used as the fixing holes RH10, and the fixing pins RP are arranged at the four corners (double circle portions shaded in FIG. 7B).

Next, the shape of the contact surface 2F of the extruded face material 2 accommodated in the punching shape TS is set in the punching shape TS according to the area surrounded by the punching shape TS. Specifically, the shape of the contact surface 2F is determined by determining whether the area in the punched shape is larger than a predetermined threshold, and in the case of an area exceeding a predetermined threshold, As shown in the second punching shape TS from the left in FIG. 7A, the contact surface 2F is set by being divided into upper and lower parts or left and right parts. In the second punched shape TS from the left in FIG. 7A, the first extruded face material 2A and the second extruded face material 2B obtained by dividing the punched shape TS into two parts vertically are movable between adjacent sides. The arrangement is set with a predetermined gap. When the required punching shape TS has an area that does not exceed a predetermined threshold value, as shown in the remaining punching shape TS in FIG. 7A, an extruded surface having a slightly smaller shape along the punching shape TS. The material 2 is arranged and set with predetermined gaps for movement around the four sides.

Then, a specific attachment direction 3v of the arm 3 attached to the extruded face material 2 is set (light ink arrow in FIG. 7A). The specific attachment direction 3v of the arm 3 is one specific direction in which there are no obstacles on the front side of the four surroundings (up, down, left, and right) as seen from the punched shape TS, as indicated by light ink in FIG. 7A. Is selected and set. Specifically, the setting of the arm attachment direction 3v is used to fix the punching shape TS of the other punching holes or the base R1 on the front side outside each side in the four directions of the top, bottom, left and right of the cutting shape. Whether it is possible to determine whether there is an obstacle such as a specific fixing hole RH10, and whether a predetermined hinge fixing area corresponding to the area of the extruded face material 2 can be secured in the base R1 on the front side outside each side. Judge whether. If the hinge fixing area can be secured without any of the obstacles, either the top, bottom, left, or right side direction is selected according to a predetermined priority order of up, down, left, and right. .

(Selection setting example of arm mounting direction 3v)
For example, in the punched shape TS at the right end in FIG. 7A, the punched shape TS of the other punched holes is arranged at the tip of the left side of the four sides of the top, bottom, left, and right around the punched shape TS. Any one of the lower side and the right side is a candidate for the arm attachment direction 3v. In addition, since a sufficient predetermined hinge fixing area can be secured in the panel on the front side of any one of the upper side, the lower side, and the right side, a predetermined priority order among the upper side, the lower side, and the right side. Accordingly, the upper side direction among the remaining three candidates is selected and set as the arm 3 attachment direction 3v.

(Selection of arm shape group 3G)
Then, in the shape of the extruded face material 2 in the punched shape TS, the arm shape groups 3G and 3G having a plurality of width patterns prepared in advance according to the side width in the mounting direction 3v of the arm 3 selected and set. From ′, the arm shape group 3G having the most suitable arm width is selected (FIG. 7A). Based on the first layout diagram drawn by the above procedure, the layout of the transport shape OS of the base R1 and the specific fixing hole RH10 for fixing the base R1 among the plurality of fixing holes RH on the cylinder peripheral surface are selected and set. In addition, a specific mounting direction 3v of the arm 3 is selected and set, and an arm shape group 3G that can be mounted in this specific mounting direction 3v is selected.

Then, by drawing the second layout diagram shown in FIG. 7B, any one of the arm shape groups 3G is selected and set as a specific arm shape to be used in the current layout. FIG. 7B shows a second layout diagram in which a specific arm that is further selected and set over the first layout diagram and a specific accommodation hole RH20 to be used in each arm shape are added. In the second layout diagram (FIG. 7B), a development view (cylinder surface RF) of the fixing hole RH and the accommodation hole RH ′ provided on the peripheral surface of the knife cylinder R of the fourth embodiment, and this development view (cylinder surface RF). The transfer shape OS of the punching object O, the punching shape TS (the punching waste T portion) required for the transfer shape OS, the specific arm selected and set, and the arm shape to be used should be used. The specific accommodation hole RH20 of the push pin P is laid out in one figure. This second layout diagram can be automatically drawn by a processing apparatus having a display and a data storage area according to a predetermined procedure.

(Create second layout diagram)
The second layout diagram is created by selecting one of the most suitable arm shapes from within the arm shape group 3G at each of the indications of the specific mounting direction of the arm 3 specified in the first layout diagram (light ink arrow in FIG. 7A). Is selected, and the selected arm shape is changed to the specific attachment direction display (light ink arrow in FIG. 7A) and plotted.

The arm is an arbitrary one that is within a plate surface of the base (R1) and avoids the specific fixing hole position from a specific hole side that is a hole side in any one of four directions around the punched hole. It has an arm shape that connects up to an arbitrary hinge fixing position arranged within a predetermined range at the position and covers the entire upper portion of the specific pin accommodation hole RH20.
(Select arm shape)
The arm shape is an arm shape group consisting of a plurality of arm shapes prepared in advance according to the distance from other adjacent punching holes, the transfer shape of the transfer position to be punched, and the punching shape. The most preferable one is selected from the shape group 3G and the second arm shape group 3G ′. As an arm shape classification mode prepared in advance in the arm shape group, a plurality of shape patterns (for example, in addition to the straight shape shown in FIG. 8, a right bent shape, a left bent shape, FIG. 7A (a ′) (b ′) ) And a plurality of width patterns (for example, those having a wide portion 32 on the right side as shown in FIGS. 7A (a) and 8 (a)), as shown in FIGS. 7A (b) and 8 (b). As shown in FIG. 7A (c) and FIG. 8 (c), or having a wide portion 32 that spreads evenly from the center to both sides, as shown in FIG. 7A (c). ′) And FIG. 8 (c ′) are all narrow, or all are thick as shown in FIG. 7A (d) and FIG. 8 (d). It is done. In particular, in FIG. 7A, the arm shape groups are classified into two groups according to the arm tip width. The upper left frame in FIG. 7A shows the first arm shape group 3G consisting of four types of arm shapes (a), (b), (c), and (d) with all wide tips, and the lower left frame in FIG. A second arm shape group 3G ′ composed of four types of arm shapes (a ′), (b ′), (c ′), and (d ′) with narrow tips is shown. In this way, all the arm shape groups are grouped and classified in advance into a plurality of arm shape groups (G, G ′, etc.), so that the arm shape can be selected more smoothly.

Based on the drawing of the layout as shown in FIG. 7B, the arm shape, the spring reaction force, and the pushing moment when protruding can be easily known by selecting and setting the arm shape together with the selection of the insertion hole 3H position. . That is, as shown in FIG. 7A, the pin accommodation position, the base mounting hole, the arrangement of the punching hole, the shape position, and the required drawing of the punching shape TS are overlapped, and prepared in advance as shown in the left frame of FIG. 7A or FIG. By selecting the arm shape from the multiple types of pattern arm shapes selected as having the arm range excluding the mounting holes and laying out as shown in FIG. The method for setting the shape of the debris removal device becomes extremely easy while considering the pushing moment.

In more detail about the selection of the arm shape, the arm shape of the arm 3 includes a hole side in one specific direction around the four sides as viewed from the punched hole and a hole upper portion at the position of the specific receiving hole RH20. Further, it is set so as to connect up to an arbitrary hinge position in the plate surface of the base R1 excluding the specific fixing hole position. In FIG. 7B, the accommodation hole RH20 in the vicinity where the punching shape TS and the arm direction overlap is selected so as to overlap the arm shape of the arm 3, and the insertion hole 3H is laid out at this position. Along with the above layout, by calculating the moment that reaches the arm tip 3E by the push pin P and calculating the push moment of the push face material 2 by this, it is possible to calculate a reliable push moment as a calculated value, and more reliably Discharge becomes possible. If the fixing hole RH and the accommodation hole RH ′ are formed in a common hole shape, the room for selection is widened and the layout becomes easier.

Here, the selection of the arm shape specifies the accommodation hole RH ′ in the vicinity of the front side in the specific mounting direction of the arm 3 and then considers the moment acting on the extruded face material 2 with this accommodation hole RH ′ as the action point. Done. Specifically, it is performed based on the following predetermined selection conditions.
<Selection conditions>
-From a specific mounting direction of the arm 3, it passes over the position of any specific receiving hole RH20 selected in the vicinity of the outside of the side width of the mounting location, and further to the front side, a predetermined arm length and arm width Having an arm base consisting of
The predetermined arm length and arm width of the arm base part exceed the minimum length determined by the moment acting on the centroid of the contact surface 2F based on the contact force of the push pin P to the accommodation hole RH20.
-From among the arm shape groups 3G and 3G 'prepared in advance, the arm shape group 3G having a single arm tip width is selected.
For example, in the arm shape group 3G in FIG. 7A, four arm shapes (a), (b), (c), and (d) are prepared in advance. Among these, for example, when selecting and setting an arm suitable for the punched shape TS at the right end in FIG. 7A, first, the accommodation hole RH ′ at the tip above the upper side which is the specific mounting direction of the punched shape is specified. . Above the upper edge of the punched shape at the right end, an accommodation hole RH ′ is disposed closest to the right side of the center of the upper edge width of the extruded face member 2. This accommodation hole RH ′ is selected and set as a specific accommodation hole RH20 (FIG. 7B). Then, an arm shape having an arm base on the further side from the upper side of the extruded face member 2 through the specific accommodation hole RH20 is selected from the arm shape group 3G (in the upper left frame in FIG. 7A). In this case, since the specific accommodation hole RH20 is arranged on the right side of the arm shape, the arm shape (b) or the arm shape (d) in the arm shape group 3G of the upper left frame in FIG. Selected.

The initial selection of the arm shape (b) or (d) excludes the arm shape (a) having the hinge center on the left side toward the left, and excludes the arm shape (c) having a narrow arm base. This is done by erasure method.
Next, in each of the arm shape (b) or the arm shape (d) initially selected from the arm shape group 3G in the upper left frame in FIG. 7A, the contact surface 2F area of the extruded face material 2 and the contact surface 2F The distance from the figure center to the specific accommodation hole RH (distance of the arm tip) and the distance from the hinge position (arm base end) to the specific accommodation hole RH (distance of the arm base) are simply calculated. . In this case, since the central position of the hinge length of the arm shape (b) is located to the left of the arm shape (d), the arm shape (b) can transmit the moment relatively efficiently. Further, the extrusion surface thickness to the punched shape TS extruded by the extrusion surface material 2 is sufficiently secured by the arm width of the arm base of the arm shape (b), and further considering the elastic reaction force of the arm, the width of the thinner arm base Therefore, the arm shape (b) is preferable to the arm shape (d). As a result, the arm shape (d) is excluded, and the arm shape (b) is selected and set as the most suitable specific arm shape (see the upper left frame in FIG. 7A).

In the fourth embodiment, a method of automatically setting a board shape of a base having an arm, an extruded face material, and a punching blade and a fixing position thereof by a processing device (not shown) having a display and a data storage area is shown. Yes. In addition, a method for automatically setting a necessary arm shape and a receiving position of an extrusion pin from an arm shape group 3G (a left end frame or FIG. 8 in FIG. 7A) composed of a plurality of arm shapes set in advance by the processing device is shown. ing.
The processing apparatus (not shown) has a layout data of fixing holes and receiving holes provided in advance on the cylinder surface RF, and an arm shape group 3G (a leftmost frame or FIG. 8 in FIG. 7A) composed of a plurality of preset arm shapes. , Stored in advance in a data storage area partitioned in the apparatus, and in another partitioned part of the data storage area, the data of the conveyance shape OS of the punching target O including the data of the required punching shape TS is stored. Thus, the first layout shown in FIG. 7A is automatically created, and then the second layout shown in FIG. 7B is automatically created.

In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made as appropriate without departing from the spirit of the present invention, such as combining elements of the apparatus and punching method of the embodiments or extracting or replacing each element. it can. For example, extraction of some elements of each embodiment such as unitization of parts consisting of an arm, an extruded face material, and a punching blade, and substitution and replacement of the elements of each embodiment such as fixing the arm and the extruded face material via a floating hinge The number of components can be changed, such as supporting multiple extruded face materials with one arm, supporting one extruded face material with multiple arms, or bringing multiple push pins into contact with one arm. Is possible. Further, the shape of each component is not limited to that described in the description of the embodiments or the drawings, and the shape of each element can be changed.

R1 Knife cylinder R2 Ampil cylinder R3 Internal roll 1 Punching blade T Punching waste 2F Abutting surface 2 Extruded face material 2A First extruded face material 2B Second extruded face material 3 Arm 3A First arm,
3B Second arm 4 Hinge 41 Hinge fixing part
41A 1st hinge fixing | fixed part 41B 2nd hinge fixing | fixed part RF Cylinder peripheral surface S1 Accommodation state S2 Protrusion state P Extrusion pin 3H Insertion hole 5 Contact surface material 6 Holding blade PE Elastic repulsion material

Claims (6)

In a rotary die cutter that performs punching of a predetermined shape by a punching blade of a predetermined circumferential shape attached on the peripheral surface of the knife cylinder, a punching scrap removal device that removes punching scraps at the time of punching,
Combined in the plane of the closed circumferential shape inside of one punching blade has a contact surface which is accommodated by dividing one punching shape on the upper surface, filling the bottom than the inner and the cutting edge of the punching blade A plurality of extruded face materials that are housed; and
Floating together with a part on the knife cylinder circumferential surface of the rotary die cutter along the knife cylinder peripheral surface is hinged, is a one-to-one correspondence to the plurality of extrusion surface material, the tip portion of each respective extrusion surface material It consists of a plurality of arms that are inserted and held,
Each of the arms is made of an elastic plate extending in a direction facing each other from a separate hinge position in the circumferential direction of different cylinder phases,
A notch hole with a closed shape is formed inside the plate surface of each extruded face material , the inside of the notch hole is loosely inserted, and the holding blade is fixed upright on the peripheral surface of the knife cylinder,
This holding blade is held or punched into the punched shape portion to be punched, so that the punching waste punched by the punching blade is held within the peripheral shape of the punching blade,
Each arm is hinge-movable at different timing from a hinge position of a different cylinder phase to a mutually different inclination angle and in a direction opposite to each other,
The extruded face material corresponding to the tip of each arm is released from the filled and accommodated state in order, and along with the free movement toward the arm tip side along the tip trajectory of the arm above the cylinder peripheral surface. It moves in the arc direction centered on the hinge position, and at least a part of the contact surface of the extruded face material protrudes to a position higher than the cutting edge of the punching blade,
The plurality of extruded face materials in the projecting state are obliquely inclined with respect to the punching surface of the punching blade and changing the inclination direction, and are opened one by one in directions away from each other and projecting upward from the holding blade, The punching scraps held by the holding blades are pressed against each abutting portion of each abutting surface in a diagonal direction opposite to each other from the end of each abutting surface with the spring reaction force of the spring steel material. However, the punching scrap removing device in the rotary die cutter is characterized by extruding in order at different timings and removing with a moment due to the hinge rotation of each arm. The extension direction front side of each arm has a wide part whose width is expanded to one side or both sides,
2. The punching dust removing device for a rotary die cutter according to claim 1 , wherein the arm tip of each wide portion is movably inserted into an insertion hole provided in the vicinity of the center of the side surface of each extruded face member . The rotary die cutter is configured to further include an extrusion pin that is accommodated in the knife cylinder and protrudes from the cylinder peripheral surface according to the rotation phase of the cylinder,
The push pin is disposed so as to protrude at a position overlapping with the arm, and pushes the arm upward by contacting from the back side of the arm when protruding.
Further, the extruded face material in the protruding state is inclined and protrudes from the cutting edge of the punching blade with the hinge rotation of the arm and the spring deformation,
The punching dust removing device for a rotary die cutter according to claim 1 or 2, wherein the punching waste is pressed by a moment generated by pivoting the hinge of the arm and a spring reaction force of the arm caused by contact of the push pin. The pin extrusion at different phase positions in the knife cylinder in correspondence with each arm are respectively accommodated,
These multiple push pins all protrude only at one particular cylinder phase,
4. The punching dust removing device in a rotary die cutter according to claim 1, wherein the plurality of arms are hinged one by one at different knife cylinder phase timings by the protrusions of the push pins. The punching blade, the extruded face material, and the arm are all provided in a base plate surface partially covered at an arbitrary position on the peripheral surface of the knife cylinder,
Further, on the peripheral surface of the knife cylinder, a predetermined number of a plurality of fixing holes for fixing the base at an arbitrary position and a plurality of receiving holes for storing the push pin at an arbitrary position are respectively provided in advance. One by one,
The foundation is
A conveying shape of a predetermined arrangement to be punched and conveyed in contact with the peripheral surface of the knife cylinder;
Among the fixed holes on the peripheral surface of the knife cylinder, a plurality of specific fixed hole positions located in the vicinity of the periphery of the conveying shape, and a board surface in a range including
Said arm, said a particular one-way hole sides either ambient square as viewed from the punching holes, according to any one of 4 to claims 1 an arm shape which passes through the upper of said specific accommodating hole position Punching scrap removal device for rotary die cutters. The arm shape is selected from a plurality of types of arm shape groups having a plurality of length patterns or a plurality of width patterns prepared in advance according to the shapes of the punching hole and the punching target. Item 6. A punching scrap removing device for a rotary die cutter according to Item 5 .

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