JP7070962B1 - Punching part receiving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a punching portion receiving device capable of reliably removing a punched portion punched by an upper die in a sheet material as punching waste.
SOLUTION: In a sheet material S, a punching section receiving device 30 for receiving and supporting a punching section P punched by an upper die 3 so as to be removable as scraps, and a movable body 40 for receiving the punching section P. A support 50 that movably supports the movable body 40, a guide means 70 that guides the movable body 40, a movable body 40 so as to be attracted and engaged by magnetic force, and a movable body side engaging portion provided on the support 50, respectively. 32 and a support side engaging portion 31 are provided, and when the movable body 40 is pushed down by the upper mold 3 via the punching portion P, the suction engagement between the movable body side engaging portion 32 and the support side engaging portion 31 is engaged. By the guidance of the guide means 70, the movable body 40 moves inward of the support 50 as it moves downward.
[Selection diagram] Fig. 1

Description

The present invention relates to a punching portion receiving device for receiving and supporting a punched portion punched by an upper die in a sheet material so as to be removable as scraps.

Conventionally, when a sheet-shaped blank, which is a developed form of a box, is manufactured by using a flat plate punching device, the following first to third steps are performed.

(First step)
The sheet material of the required dimensions is supplied from the paper feed section of the flat board punching device to the die punching section, and the die punching is performed to obtain a blank having a predetermined shape in which the box body is unfolded. At this time, the stamped sheet material is put into a state where it can be fed laterally by connecting the blank and the portion to be punched waste (punched portion) by a connecting portion provided at a required location.

(Second step)
Next, the sheet material that has undergone the first step is sent to the punching scrap removing portion of the flat board punching device, and in this punching scrap removing portion, the upper die provided with the push piece and the punching portion can be removed as punched dust. Punching part to be supported In cooperation with a lower mold equipped with a supporting device, the punching part is punched out and removed as punching debris. Here, as the punching portion receiving device provided in the lower mold, a device including a receiving piece, a support frame, a magnet, and a steel plate piece is used (see, for example, Patent Document 1). The receiving piece has a receiving surface for receiving the punched portion, and is rotatably supported by the support frame. The receiving piece and the supporting frame are provided with a magnet and a steel plate piece, respectively, so as to be attracted and engaged by magnetic force.

In the second step, the lower mold is raised with respect to the upper mold in a stationary state. As a result, the punched portion is pushed up in a state of being supported by the receiving piece with respect to the pushing piece in the stationary state. At this time, the punched portion is relatively pushed down by the push piece, and the connecting portion connecting the blank and the punched portion is torn off. At the same time, the receiving piece is relatively pushed down by the pushing piece through the punched portion, so that the suction engagement between the magnet and the steel plate piece is disengaged, and the receiving piece rotates so that the receiving surface is inclined downward. do. After the joint portion is torn off, the punched portion is relatively further pushed down by the push piece, and slides down the downwardly inclined receiving surface of the rotated receiving piece to be removed.

(Third step)
Then, the sheet material that has undergone the second step is sent to the discharging portion of the flat board punching device, and the blank is removed from the outer surplus portion around the blank in the discharging portion.

Japanese Unexamined Patent Publication No. 2001-121485

In the punched-out portion receiving device described in Patent Document 1, in particular, when the punched portion punched out from the resin sheet material becomes punched waste, the friction between the punched waste and the receiving surface becomes large, so that the receiving surface becomes large. Even if the plastic is tilted downward, the debris may not slide off the receiving piece. If the debris does not slide off, the next debris removal operation will be delayed, which will lead to deterioration of the production efficiency of the product (blank).

The present invention has been made in view of the above problems, and an object of the present invention is to provide a punching portion receiving device capable of reliably removing punched portions of a sheet material punched by an upper die as punching chips. do.

The characteristic configuration of the punching section receiving device according to the present invention for solving the above problems is
It is a punching part receiving device that supports and supports the punched part punched by the upper die in the sheet material so that it can be removed as scraps.
A movable body that supports the punched portion and
A support that movably supports the movable body and
Guidance means for guiding the movable body and
The movable body, the movable body side engaging portion provided on the support, and the support side engaging portion so as to be attracted and engaged by magnetic force.
Equipped with
When the movable body is pushed down by the upper mold through the punching portion, the suction engagement between the movable body side engaging portion and the support side engaging portion is disengaged, and the movable body is guided by the guiding means to the movable body. It is to move inward of the support as it goes downward.

According to the punching portion receiving device of this configuration, when the movable body is pushed down by the upper die through the punching portion, the suction engagement between the movable body side engaging portion and the support side engaging portion is disengaged, and the guidance by the guiding means is provided. As a result, the movable body moves inward of the support as it moves downward. The punched portion, that is, the punched waste punched out from the sheet material, is pushed down together with the movable body in a state of being sandwiched between the upper mold and the movable body. At this time, since the movable body moves inward of the support as it moves downward by the guidance by the guiding means, the part of the movable body that receives the debris moves according to the increase in the amount of movement. It gets smaller. Finally, the debris cannot be received by the movable body, and the debris is pushed down from the movable body. Therefore, the punched portion of the sheet material punched by the upper die can be reliably removed as punched debris.

In the punching section receiving device according to the present invention
The support-side engaging portion is a support-side magnet fixed to the support.
The movable body side engaging portion is
A fixed magnetic material fixed to the movable body and
A tilting magnetic body arranged between the support side magnet and the fixed magnetic body and attached to the movable body so as to be tiltable with respect to the fixed magnetic body.
Including
When the movable body is pushed down by the upper mold through the punching portion, the tilting magnetic body tilts with respect to the fixed magnetic body while the support side magnet and the tilting magnetic body are attracted and engaged with each other, and then the tilting magnetic body is tilted. It is preferable that the tilting magnetic material and the support side magnet are configured so as to be disengaged from the attractive engagement.

According to the punching section receiving device of this configuration, when the movable body is pushed down by the upper mold through the punching section, the tilting magnetic material is attached to the fixed magnetic body while the support side magnet and the tilting magnetic body are attracted and engaged with each other. It tilts, and then the attractive engagement between the tilting magnetic material and the magnet on the support side is disengaged. While the tilting magnetic material is tilted with respect to the fixed magnetic material while the support side magnet and the tilting magnetic material are attracted and engaged, the magnetic force that tries to return to the original state before tilting is the tilting magnetic body and the support side magnet. Acts during. This magnetic force acts on the movable body via the tilting magnetic body and urges the movable body in the direction of pushing it up. As a result, when the punched portion is punched by the upper die, a reaction force that opposes the pressing force acting on the movable body from the upper die via the punched portion is secured. In this way, the reaction force against the pressing force from the upper mold is secured, and the punched part is sandwiched between the upper mold and the movable body, and the punched part is the movable body by the head of the vertical displacement of the tilting magnetic body. Pushed down with. As a result, the punching force can be reliably applied to the punching portion, and even when the punching portion is connected to the sheet material portion around the punching portion with a required connecting portion, the connecting portion is reliably connected. Can be torn apart. After that, when the attractive engagement between the tilting magnetic body and the magnet on the support side is disengaged, the movement of the movable body toward the inward side of the support is promptly performed as the movable body moves downward, and the debris is removed from the movable body. Can be quickly pushed down and removed.

In the punching section receiving device according to the present invention
The support-side engaging portion is a support-side magnet fixed to the support.
The movable body side engaging portion is
The movable body side magnet fixed to the movable body and
A tilting magnetic material arranged between the support side magnet and the movable body side magnet and attached to the movable body so as to be tiltable with respect to the movable body side magnet.
Including
When the movable body is pushed down by the upper mold through the punching portion, the tilting magnetic body is tilted with respect to the movable body side magnet while the support side magnet and the tilting magnetic body are attracted and engaged with each other, and then the tilting magnetic body is tilted. It is preferable that the tilting magnetic material and the support side magnet are configured so as to be disengaged from the attractive engagement.

According to the punching section receiving device of this configuration, when the movable body is pushed down by the upper mold through the punching section, the tilting magnetic body is attracted to and engaged with the support side magnet and the tilting magnetic body with respect to the movable body side magnet. It tilts, and then the attractive engagement between the tilting magnetic material and the magnet on the support side is disengaged. While the tilting magnetic material is tilted with respect to the movable body side magnet while the support side magnet and the tilting magnetic body are attracted and engaged, the magnetic force that tries to return to the original state before tilting is generated by the tilting magnetic body and the support side magnet. It acts both during and between the tilting magnetic material and the magnet on the movable body side. These magnetic forces act on the movable body via the tilting magnetic body and urge the movable body in the direction of pushing it up. As a result, when the punched portion is punched by the upper die, a reaction force that opposes the pressing force acting on the movable body from the upper die via the punched portion is secured. Here, since the reaction force secured is such that the movable body side engaging portion includes the movable body side magnet and the tilting magnetic body, the movable body side engaging portion is fixed by the magnetic force of the movable body side magnet. It is larger than the case where the configuration includes a magnetic material and a tilting magnetic material. In this way, the reaction force against the pressing force from the upper mold is sufficiently secured, and the punched portion is sandwiched between the upper mold and the movable body, and the punched portion is the head of the vertical displacement of the tilting magnetic material. Pushed down with the movable body. As a result, the punching force can be more reliably applied to the punching portion, and even when the punching portion is connected to the sheet material portion around it by the required joint portion before punching, the joint portion can be more reliably applied. It can be surely torn apart. After that, when the attractive engagement between the tilting magnetic body and the magnet on the support side is disengaged, the movement of the movable body toward the inward side of the support is promptly performed as the movable body moves downward, and the debris is removed from the movable body. Can be quickly pushed down and removed.

In the punching section receiving device according to the present invention
One end side of the tilting magnetic body is engaged with the locking claw portion provided on the movable body in a hooked state, and the other end side of the tilting magnetic body can move up and down to the notch portion provided on the movable body. It is preferable that the tilting magnetic body is attached to the movable body so as to be tilted in the vertical direction with the portion engaged with the locking claw portion as a fulcrum.

According to the punching portion receiving device of this configuration, the tilting magnetic material is attached to the movable body so that it can be tilted in the vertical direction with the portion engaged with the locking claw portion provided on the movable body as a fulcrum as a fulcrum. Be done. With such a simple configuration, when the movable body is pushed down by the upper die through the punching portion, the support side magnet and the tilting magnetic body are attracted and engaged with each other and tilted with respect to the fixed magnetic body or the movable body side magnet. The magnetic material can be tilted, and then the operation can be performed so that the attractive engagement between the tilting magnetic material and the magnet on the support side is disengaged.

In the punching section receiving device according to the present invention
It is preferable to further provide an urging means for urging the movable body in a direction in which the movable body-side engaging portion approaches the support-side engaging portion.

According to the punching portion receiving device of this configuration, the movable body is urged by the urging means in the direction in which the movable body side engaging portion approaches the support side engaging portion, so that the movable body side is accompanied by the punching removal operation of the punching portion. Even if the suction engagement between the engagement portion and the support side engagement portion is disengaged, both can be quickly returned to the original suction engagement state, and the punching removal operation of the punching portion can be easily repeated. ..

In the punching section receiving device according to the present invention
The guidance means is
An elongated opening provided in the support so as to extend downwardly toward the inside of the support,
A shaft portion provided on the movable body so as to engage with the elongated opening, and a shaft portion.
A rotation restricting rod that regulates the rotation of the movable body around the shaft portion,
Is preferably included.

According to the punching portion receiving device of this configuration, when the movable body is pushed down by the upper die through the punching portion, an elongated opening provided in the support so as to extend downward to the inside of the support. Since the shaft portion provided on the movable body is guided along the portion, the movable body can be reliably moved to the inward side of the support as it goes downward. Further, in the punching portion receiving device of this configuration, even if the movable body is pushed down by the upper die through the punching portion by the rotation restricting rod that regulates the rotation of the movable body around the shaft portion, the movable body Can be prevented from rotating around the shaft portion, and the posture of the movable body can be stably maintained when the movable body moves inward of the support as the movable body advances downward.

In the punching section receiving device according to the present invention
The urging means is preferably a compression coil spring externally fitted to the rotation restricting rod.

According to the punched-out portion receiving device of this configuration, the urging means for urging the movable body in the direction in which the movable body-side engaging portion approaches the support-side engaging portion is a compression coil spring externally fitted to the rotation restricting rod. Therefore, the compression coil spring is supported by the rotation restricting rod and can be smoothly expanded and contracted in the axial direction thereof, and the elastic force of the compression coil spring is applied in the direction in which the movable body side engaging portion approaches the support side engaging portion. As an urging force that urges the movable body, the movable body can be reliably acted on.

In the punching section receiving device according to the present invention
It is preferable that the elongated opening is formed in an arc shape that is convex diagonally downward toward the outside of the support.

According to the punched-out support device of this configuration, the elongated opening is formed in an arc shape that is convex diagonally downward toward the outside of the support, so that the shaft portion provided on the movable body is the elongated opening. The friction between the elongated opening and the shaft portion is reduced, and the wear of the peripheral edge of the elongated opening and the shaft portion can be suppressed.

In the punching section receiving device according to the present invention
The lower end side of the rotation restricting rod is inserted into an insertion hole provided in the support so as to be movable in the axial direction.
The inner wall surface of the insertion hole is preferably formed in a divergent shape in the direction toward the movable body.

According to the punching portion receiving device of this configuration, the insertion hole provided in the support through which the lower end side of the rotation restricting rod is inserted is formed in a divergent shape in the direction toward the movable body, so that the movable body swings. Even if the rotation restricting rod swings, the movable body can be smoothly moved without interfering with the outer peripheral surface of the rotation restricting rod and the inner wall surface of the insertion hole.

FIG. 1 is a front view of a punching debris removing device including a punching section receiving device according to an embodiment of the present invention. FIG. 2 is an arrow view taken along the line AA of FIG. 3A and 3B show a movable body, where FIG. 3A is a front view of the movable body side engaging portion not attached, FIG. 3B is a plan view, and FIG. 3C is a front view of the movable body side engaging portion attached. .. FIG. 4 is a front view of the side plate portion. FIG. 5 is an explanatory diagram (1) for removing punched debris. FIG. 6 is an explanatory diagram (2) of a punching debris removing operation. FIG. 7 is an explanatory diagram (3) of a punching debris removing operation. FIG. 8 is an explanatory diagram (4) of a punching debris removing operation. FIG. 9 is a front view of a punching debris removing device including the punching section receiving device of the first embodiment. FIG. 10 is an explanatory diagram of a punching portion receiving device according to another embodiment 2 to 5.

Hereinafter, the present invention will be described with reference to the drawings. However, the present invention is not intended to be limited to the configurations described in the embodiments and drawings described below.

<Outline configuration of punching waste removal device>
FIG. 1 is a front view of a punching debris removing device 1 provided with a punching section receiving device 30 according to an embodiment of the present invention. The punching debris removing device 1 shown in FIG. 1 includes an upper mold 3 arranged in a fixed state and a lower mold 5 that is moved up and down relative to the upper mold 3, and includes the upper mold 3 and the lower mold 5. It is configured to punch out the punched portion P in the sheet material S placed on the lower mold 5 and remove it as punched debris. Here, the sheet material S is, for example, a product that has undergone a die-cutting step for obtaining a blank having a predetermined shape in which a box body (product) is developed. In the sheet material S that has undergone the die punching step, the blank and the punching portion P are joined by a connecting portion j provided at a required location. The punched portion P is a portion of the sheet material S that becomes a debris remaining in a portion such as an independent hole portion or a thin cut portion in the product stage.

<Upper type>
The upper mold 3 is mainly composed of an upper mold substrate 11, a push piece 13, and a sheet presser piece 15. The upper die substrate 11 extends in the horizontal direction above the lower die 5 so as to face the plate surface in the vertical direction. The push piece 13 is planted in the upper mold substrate 11 so as to protrude downward by a predetermined length from the lower surface of the upper mold substrate 11. The sheet pressing piece 15 is made of, for example, foamed resin that can be elastically deformed, and is attached to the lower surface of the upper substrate 11 so as to be located in the vicinity of the pushing piece 13.

<Lower type>
The lower die 5 includes a lower die board 21 extending in the horizontal direction with the plate surface facing up and down below the upper die board 11, and a punching portion receiving device 30 attached to the lower die board 21. It is configured. The punching section receiving device 30 is a device for receiving and supporting the punching section P punched by the upper die 3 (push piece 13) in the sheet material S as scraps.

FIG. 2 is an arrow view taken along the line AA of FIG. As shown in FIG. 2, the punching portion support device 30 has a U-shaped notch 23 formed at the edge of the lower substrate 21 so as to be flush with the upper surface of the lower substrate 21. It is incorporated into the lower plate 21 and fastened to and fixed to the lower substrate 21 by the fastener 25.

<Punching part receiving device>
As shown in FIG. 1, the punching section receiving device 30 includes a movable body 40 that receives and supports the punching section P, and a support 50 that movably supports the movable body 40.

<Movable body>
3A and 3B show the movable body 40, where FIG. 3A is a front view of the movable body side engaging portion not attached, FIG. 3B is a plan view, and FIG. 3C is a front view of the movable body side engaging portion attached. be. As shown in FIG. 3A, the movable body 40 has a front portion 41, a body portion 42, and a tail portion 43. The front portion 41 has a horizontal punched portion mounting surface (punched portion mounting portion) 41a on which the punched portion P is mounted. The front portion 41 is formed in a tapered trapezoidal shape toward the front (to the right in FIG. 3A). The body portion 42 is integrally provided on the front portion 41 so as to extend behind the front portion 41 (to the left in FIG. 3A). The tail portion 43 is integrally provided on the body portion 42 so as to extend upward from the lower position of the body portion 42 in an upwardly inclined state. In the movable body 40, a notch 44 having a concave shape toward the front is formed at the boundary portion between the body portion 42 and the tail portion 43. At the base of the notch 44, a first locking recess 45 recessed on the back side is formed. At the rear end of the tail portion 43, a hook-shaped locking claw portion 46 that looks like it is folded forward on the upper side is formed. When the tilting magnetic body 86 is tilted diagonally with respect to the fixed magnetic body 85 described later so that the front end side of the tilting magnetic body 86 described later abuts on the upper portion of the notch 44 on the locking claw portion 46, A contact surface 46a that abuts on the upper surface on the rear end side of the tilting magnetic body 86 is formed. At the rear end of the tail portion 43, a second locking recess 47 recessed inward so as to face the first locking recess 45 is formed. Further, in the upper part of the movable body 40, a recess 48 is formed between the front portion 41 and the body portion 42 so that a part of the front portion 41 is cut off. The recess 48 is formed in a size and shape that can accommodate the front wall plate portion 56 with a required gap with respect to the front wall plate portion 56 described later, and is formed in an upper portion of the movable body 40 and in front of the support 50. It is provided so as not to interfere with the wall plate portion 56.

<Support>
As shown in FIG. 1, the support 50 mainly includes a pair of side plate portions 51, a front top plate portion 52, a rear top plate portion 53, a front bottom plate portion 54, a rear bottom plate portion 55, and a front wall plate portion 56. It is composed of.

FIG. 4 is a front view of the side plate portion 51. The side plate portions 51 shown in FIG. 4 are arranged adjacent to each other on the left and right sides of the movable body 40 (both sides in the direction penetrating the paper surface in FIG. 1). The side plate portion 51 has an upper side portion 61, a lower side portion 62, a front side portion 63, and a rear side portion 64.

The upper side portion 61 includes a front side upper side portion 61a and a rear side upper side portion 61b. The front upper side portion 61a extends horizontally in the front-rear direction at the upper position of the side plate portion 51. The rear upper side portion 61b extends horizontally in the front-rear direction at an intermediate position in the vertical direction of the side plate portion 51.

The lower side portion 62 includes a front side lower side portion 62a and a rear side lower side portion 62b. The front lower side portion 62a extends so as to incline upward toward the rear at the lower position of the side plate portion 51. The rear lower side portion 62b extends horizontally in the front-rear direction at the lower position of the side plate portion 51.

The front side portion 63 includes an upper front side portion 63a and a lower front side portion 63b. The upper front side portion 63a extends in the vertical direction so as to form a right angle with the front side upper side portion 61a and be continuous. The lower front side portion 63b forms an obtuse angle with the upper front side portion 63a, forms a substantially right angle with the front lower side portion 62a, and is directed downward so as to be continuous with the upper front side portion 63a and the front lower side portion 62a. It extends backward in an inclined state.

The rear side portion 64 includes an upper rear side portion 64a, an intermediate rear side portion 64b, and a lower rear side portion 64c. The upper rear side portion 64a extends vertically with respect to the front side upper side portion 61a and the rear side upper side portion 61b so as to be continuous with the front side upper side portion 61a and the rear side upper side portion 61b, respectively. The intermediate rear side portion 64b extends vertically so as to be continuous with the rear side upper side portion 61b and the rear side lower side portion 62b at right angles to the rear side upper side portion 61b and the rear side lower side portion 62b, respectively. .. The lower rear side portion 64c forms a right angle with respect to the rear side lower side portion 62b, while making an obtuse angle with respect to the front side lower side portion 62a so as to be continuous with the posterior lower side portion 62b and the front side lower side portion 62a in the vertical direction. It extends to.

As shown in FIG. 1, the front top plate portion 52 has a pair of side plate portions 51 so that the punched portion mounting surface 41a of the movable body 40 located at a position for receiving the punched portion P is exposed. The front upper side portions 61a (see FIG. 4) in the above are connected to each other. The rear top plate portion 53 connects the rear side upper side portions 61b (see FIG. 4) of the pair of side plate portions 51 to each other. The front bottom plate portion 54 connects the front side lower side portions 62a (see FIG. 4) of the pair of side plate portions 51 to each other. The rear bottom plate portion 55 connects the rear lower side portions 62b (see FIG. 4) to each other. The front wall plate portion 56 is connected to the front top plate portion 52 so as to hang down from the front end portion of the front top plate portion 52 by a predetermined length. By providing the front wall plate portion 56 in this way, it is possible to prevent the punched portion P punched out from the sheet material S from invading the inside of the support 50.

<Guide means>
The punching portion receiving device 30 shown in FIG. 1 further includes a guiding means 70 for guiding the movable body 40 so as to move inward of the support 50 as it advances downward. The guiding means 70 includes an elongated opening 71, a shaft portion 72, and a rotation restricting rod 73.

As shown in FIG. 4, the elongated opening 71 is formed in the side plate portion 51 so as to extend downward (to the left in FIG. 4). The elongated opening 71 is formed so as to exhibit a convex arc shape diagonally downward toward the outside of the support 50, in this example, toward the front of the support 50 (to the right in FIG. 4).

As shown in FIG. 1, the shaft portion 72 is provided on the movable body 40 so as to engage with the elongated opening portion 71. As shown in FIGS. 3A and 3B, the shaft portion 72 is formed by both ends of the shaft body 75 that penetrates the movable body 40 and is fixed with both ends protruding from the movable body 40. .. In this way, the shaft portion 72 provided in the movable body 40 is guided along the elongated opening 71 provided in the support body 50 (side plate portion 51). 40 can be reliably moved. In particular, in this example, since the elongated opening 71 is formed in an arc shape that is obliquely downwardly convex toward the front of the support 50, the shaft portion 72 is smoothly guided along the elongated opening 71. Since the shaft portion 72 is configured to be guided along the elongated opening 71, the shaft portion 72 is less worn than the conventional (Patent Document 1) in which the receiving piece is rotated. It can be suppressed and the product life can be extended. In particular, in this example, since the elongated opening 71 is formed in an arc shape that is convex diagonally downward toward the front of the support 50, the friction between the elongated opening 71 and the shaft portion 72 is reduced. , It is possible to suppress the wear of the peripheral edge of the elongated opening 71 and the shaft portion 72.

As shown in FIG. 1, the rotation restricting rod 73 regulates the rotation of the movable body 40 around the shaft portion 72. The upper end side of the rotation restricting rod 73 is inserted into and fixed to the movable body 40. The lower end side of the rotation restricting rod 73 is inserted into the insertion hole 54a provided in the front bottom plate portion 54 of the support 50 so as to be movable in the axial direction in a penetrating state. In this way, it is possible to prevent the movable body 40 from rotating around the shaft portion 72 while guiding the movement of the movable body 40, and the movable body 40 moves inward of the support 50 as the movable body 40 moves downward. The posture of the movable body 40 can be kept stable.

The shaft portion 72 moves along the elongated opening 71 when the movable body 40 is moved by the guidance of the guiding means 70. A slight gap is provided between the elongated opening 71 and the shaft portion 72 so that the shaft portion 72 can smoothly move relative to the elongated opening 71. However, due to the provision of such a gap, when the movable body 40 is moved by the guidance of the guiding means 70, the movable body 40 swings in the front-rear direction (left-right direction in FIG. 1). Along with this, the rotation restricting rod 73 also swings. Therefore, the outer peripheral surface of the rotation restricting rod 73 and the inner wall surface of the insertion hole 54a may interfere with each other, and the movable body 40 may not move smoothly. Therefore, the inner wall surface of the insertion hole 54a is formed in an inverted truncated cone shape that spreads toward the upper surface side (method toward the movable body 40) from the lower surface side of the front bottom plate portion 54. As a result, even if the rotation restricting rod 73 swings in the front-rear direction (left-right direction in FIG. 1), the outer peripheral surface of the rotation restricting rod 73 and the inner wall surface of the insertion hole 54a do not interfere with each other, and the movable body 40 Can be moved smoothly.

<Support side engaging part>
The punching portion receiving device 30 shown in FIG. 1 further includes a support side magnet 80 as a support side engaging portion 31 provided on the support 50 so as to be attracted and engaged by magnetic force. The support side magnet 80 is formed in a rectangular parallelepiped shape extending in a rectangular cross section in the arrangement direction of the pair of side plate portions 51. Both ends of the support side magnet 80 are fixedly fitted to mounting holes 65 (see FIG. 4) formed in each of the pair of side plate portions 51. The support side magnet 80 is tilted at a predetermined angle so that the lower surface of the six surfaces thereof faces the surface of the tail portion 43 (see FIG. 3A) in the movable body 40 in the length direction. It is arranged above the tail portion 43. Examples of the support side magnet 80 include neodymium magnets, ferrite magnets, alnico magnets, samarium-cobalt magnets, and the like, but neodymium magnets that can obtain strong magnetic force even in a small size are preferable.

<Movable body side engaging part>
The punching portion receiving device 30 shown in FIG. 1 further includes a fixed magnetic body 85 as a movable body side engaging portion 32 provided on the movable body 40 so as to be attracted and engaged by magnetic force, and a tilting magnetic body 86.

As shown in FIG. 3C, the fixed magnetic body 85 is locked to the first locking recess 45 and the second locking recess 47 in the movable body 40. The fixed magnetic material 85 is made of a plate-shaped magnetic material (iron plate in this example) having a plate surface parallel to the lower surface of the support side magnet 80 (see FIG. 1), and is placed on the tail portion 43 in a fixed state. ing. On the other hand, the tilting magnetic body 86 is composed of a plate-shaped magnetic material (iron plate in this example) having a plate surface that can face the lower surface of the support side magnet 80 (see FIG. 1) and the upper surface of the fixed magnetic body 85, and is fixed. It is arranged between the magnetic body 85 and the support side magnet 80. The rear end side (one end side) of the tilting magnetic body 86 is engaged with the locking claw portion 46 of the movable body 40 in a hooked state. The front end side (the other end side) of the tilting magnetic body 86 is vertically and vertically engaged with the notch 44 in the movable body 40. In this way, the tilting magnetic body 86 is attached to the movable body 40 so as to be tiltable in the vertical direction with the portion engaged with the locking claw portion 46 in a hooked state as a fulcrum. With such a simple configuration, when the movable body 40 is pushed down by the upper die 3 via the punching portion P, the support side magnet 80 and the tilting magnetic body 86 are attracted and engaged with each other with respect to the fixed magnetic body 85. The tilting magnetic body 86 can be tilted, and then the operation such that the attractive engagement between the tilting magnetic body 86 and the support side magnet 80 is disengaged can be performed. Both the fixed magnetic material 85 and the tilting magnetic material 86 are ferromagnets that are attracted to the support-side magnet 80, and examples thereof include those made of metals such as iron, nickel, and cobalt.

<Means of urging>
The punching portion receiving device 30 shown in FIG. 1 has a movable body 40 in a direction in which the fixed magnetic body 85 provided on the movable body 40 and the tilting magnetic body 86 approach the support side magnet 80 provided on the support 50. A compression coil spring 90 is further provided as an urging means. In this way, even if the fixed magnetic body 85 and the tilting magnetic body 86 and the support side magnet 80 are disconnected from each other due to the punching removal operation of the punching portion P, the two are quickly returned to the original suction-engaged state. It can be returned, and the punching removal operation of the punching portion P can be easily repeated.

The compression coil spring 90 is externally fitted to the rotation restricting rod 73 between the front bottom plate portion 54 of the support 50 and the lower surface of the movable body 40. In this way, the compression coil spring 90 is supported by the rotation restricting rod 73 and can smoothly expand and contract in the axial direction thereof. As a result, the fixed magnetic body 85 and the tilting magnetic body 86 provided on the movable body 40 generate the elastic force of the compression coil spring 90 as an urging force for urging the movable body 40 in the direction approaching the support side magnet 80. It can be reliably acted on the movable body 40.

As shown in FIG. 1, in the punching portion receiving device 30, the rear upper side portion 61b (see FIG. 4) of the pair of side plate portions 51 is brought into contact with the lower surface of the lower substrate 21, and the pair of side plate portions 51 The upper rear side portion 64a (see FIG. 4) is assembled to the lower mold substrate 21 so as to be in contact with the inner surface of the notch portion 23 of the lower mold substrate 21, and is fixed to the lower mold substrate 21 by fastening the fastener 25. ing. In the punched-out portion receiving device 30, in the state as shown in FIG. 1 in which the shaft portion 72 is engaged with the uppermost portion of the elongated opening portion 71, the punched-out portion mounting surface 41a of the movable body 40 is a pair of side plate portions 51. The movable body 40 is flush with the front upper side portion 61a (see FIG. 4) and protrudes from the upper front side portion 63a (see FIG. 4) of the pair of side plate portions 51 by a predetermined length. As a result, as shown in FIG. 1, the punching portion mounting surface 41a of the movable body 40 faces the tip surface (lower end surface) of the push piece 13 of the upper die 3 and is punched below the push piece 13. The punched portion P of the sheet material S placed on the lower substrate 21 so that the portion P is located can be supported from the lower surface side.

<Punching waste removal operation>
Next, regarding the operation of punching and removing the punched portion P as punching dust by using the punching dust removing device 1, the front view of the punching dust removing device of FIG. 1 and the explanatory view of the punching dust removing operation of FIGS. 5 to 8 Will be described using.

In FIG. 1, the sheet material S die-cut in the previous step is sent to the upper surface of the lower die substrate 21 in the lower die 5 so that the punching portion P is located below the push piece 13. As a result, the punched portion P is supported by the punched portion mounting surface 41a of the movable body 40.

As shown in FIG. 5, when the lower mold 5 is raised with respect to the upper mold 3 in a stationary state, the sheet holding piece 15 comes into contact with the sheet material S and elastically deforms. As a result, the vicinity of the punched portion P is pressed by the elastically deformed sheet pressing piece 15, and the sheet material S is stabilized.

As shown in FIG. 6, when the lower die 5 is further raised, the punching portion P is relatively pushed down by the pushing piece 13, and the movable body 40 is relatively pushed down by the pushing piece 13 via the punching portion P. Be done. When the movable body 40 is pushed down by the push piece 13, the tilting magnetic body 86 tilts with respect to the fixed magnetic body 85 while the support side magnet 80 and the tilting magnetic body 86 are attracted and engaged with each other. While the tilting magnetic body 86 is tilted, a magnetic force that tries to return to the original state before tilting acts between the tilting magnetic body 86 and the support side magnet 80. This magnetic force acts on the movable body 40 via the tilting magnetic body 86, and urges the movable body 40 in the direction of pushing it up. As a result, when the punching portion P is punched out by the pushing piece 13, a reaction force that opposes the pushing force acting on the movable body 40 from the pushing piece 13 via the punching portion P is secured. In this way, the reaction force against the pushing force from the pushing piece 13 is secured, and the punching portion P tilts with respect to the fixed magnetic body 85 while the punching portion P is sandwiched between the pushing piece 13 and the movable body 40. It is pushed down together with the movable body 40 by the head corresponding to the vertical displacement of the magnetic body 86. As a result, the punching force can be reliably applied to the punching portion P. The vertical displacement of the tilting magnetic body 86 with respect to the fixed magnetic body 85 is set to be equal to or larger than the thickness of the sheet material S. Therefore, the connecting portion j (see FIG. 1) that connects the punched portion P and the portion of the sheet material S around the punched portion P is surely torn off. Even if the punched portion P punched out from the sheet material S by tearing off the connecting portion j tries to enter the inside of the support 50, it is blocked by the front wall plate portion 56, so that the punched portion P after that is blocked. It is possible to smoothly shift to the push-down operation.

After that, as shown in FIG. 7, when the attractive engagement between the tilting magnetic body 86 and the support side magnet 80 is disengaged, the movable body 40 is guided downward by the guiding means 70 to the inward side of the support 50. Moving. The punched portion P punched out from the sheet material S, that is, the punched waste, is pushed down together with the movable body 40 in a state of being sandwiched between the push piece 13 and the movable body 40. Since the movable body 40 moves inward of the support 50 as it moves downward, the amount of protrusion of the movable body 40 from the upper front side portion 63a (see FIG. 4) of the side plate portion 51 of the support body 50 is movable. As the amount of movement of the body 40 increases, the size becomes smaller, and along with this, the portion of the movable body 40 that receives the punched waste (punched portion P) becomes smaller.

Finally, as shown in FIG. 8, the punched waste (punched portion P) cannot be supported by the movable body 40, and the punched waste is pushed down from above the movable body 40. In this way, the punched portion P can be reliably removed as scraps.

In the punched portion receiving device 30 of the present embodiment, as shown in FIG. 5, two iron plates (fixed magnetic material) mounted on the movable body 40 by the magnetic force of the support side magnet 80 mounted on the support 50. The movable body 40 is attracted and held via the tilting magnetic body 86). When the movable body 40 held in this way is relatively pushed down by the push piece 13, the tilting magnetic body 86 is first released with respect to the fixed magnetic body 85 as shown in FIG. 6, and then the tilting magnetic body 86 is released with respect to the fixed magnetic body 85. As shown in FIGS. 7 to 8, the tilting magnetic body 86 is opened with respect to the support side magnet 80. In this way, all of the connecting portions j provided at the required points are torn apart by the first-stage descent operation of the movable body 40 (see FIGS. 5 to 6), and the second-stage descent of the movable body 40 is performed. Depending on the operation, the punched portion P is pushed down and removed as scraps (see FIGS. 7 to 8). In this way, by lowering the movable body 40 in two stages, the connecting portion j can be reliably torn and the punched portion P can be reliably removed as scraps. If only the fixed magnetic body 85 is provided without the tilting magnetic body 86, the movable body 40 attracted and held via the fixed magnetic body 85 is pushed by the magnetic force of the support side magnet 80. When it is relatively pushed down by the piece 13, the fixed magnetic body 85 is opened with respect to the support side magnet 80, and the movable body 40 is lowered at once. In such a one-step lowering operation of the movable body 40, the operation of pushing down the punched portion P while being sandwiched between the push piece 13 and the movable body 40 is not sufficiently performed, and the connecting portion provided at the required location is not sufficiently performed. There is a possibility that the punched portion P remains on the sheet material S without being torn off a part of j. In this case, the quality of the product (blank) is greatly impaired. As described above, by lowering the movable body 40 in two stages, the punched portion P can be reliably removed as scraps, so that the quality of the product can be stably maintained.

The punched-out portion receiving device of the present invention has been described above based on one embodiment, but the present invention is not limited to the configuration described in the above embodiment, and the configuration is appropriately configured without departing from the spirit thereof. Can be changed.

(Another Embodiment 1)
FIG. 9 is a front view of the punching debris removing device 1 provided with the punching portion receiving device 30A of another embodiment 1. Regarding the same or similar to the above embodiment, the same reference numerals will be given to the drawings and detailed description thereof will be omitted. In the following, the parts peculiar to the separate embodiment 1 will be mainly described. (The same applies to the other embodiments 2 to 5 described later). In the above embodiment, the rear upper side portion 61b (see FIG. 4) of the pair of side plate portions 51 is brought into contact with the lower surface of the lower mold substrate 21, and the upper rear side portion 64a (see FIG. 4) of the pair of side plate portions 51 is brought into contact with the lower surface. An example is shown in which a punching portion receiving device 30 is used, which is assembled to the lower mold substrate 21 so as to abut the back surface of the notch portion 23 of the lower mold substrate 21, but the present invention is not limited to this. A punching portion receiving device 30A as shown in 9 may be used. In FIG. 9, the lower substrate 21 has an end face 24 that inclines downward (to the left in FIG. 9). In the punching portion receiving device 30A shown in FIG. 9, the upper rear side portion 64a of the pair of side plate portions 51 is inclined upward (to the right in FIG. 9) so as to follow the shape of the end face 24. It is said to have a unique shape. As the upper rear side portion 64a is formed in such a shape, the front upper side portion 61a (see FIG. 4) provided in the pair of side plate portions 51 in the punching portion receiving device 30 shown in FIG. 1 is omitted. The pair of side plate portions 51 in the punching portion receiving device 30A is formed in an upwardly sharp shape such that the upper rear side portion 64a and the upper front side portion 63a form an acute angle and are continuous. The movable body 40 is formed in a tapered trapezoidal shape diagonally upward so as to match the shape of the pair of side plate portions 51. Further, a required non-slip protrusion 67 that abuts on the lower surface of the lower die substrate 21 is formed on the rear upper side portion 61b. Other than that, it has basically the same structure as the punching section receiving device 30 of the above embodiment, and the punching section receiving device 30A can also obtain the same function and effect as the punching section receiving device 30. ..

(Separate Embodiment 2)
FIG. 10 is an explanatory diagram of the punching portion receiving devices 30B to 30E of the other embodiments 2 to 5. FIG. 10A shows the punching portion receiving device 30B of the second embodiment. In the punching portion receiving device 30B shown in FIG. 10A, the movable body side engaging portion 32 provided on the movable body 40 so as to be attracted and engaged by magnetic force is composed of the movable body side magnet 101 and the tilting magnetic body 86. ing. The movable body side magnet 101 is locked to the first locking recess 45 and the second locking recess 47 in the movable body 40. The movable body side magnet 101 is composed of a plate-shaped magnet having a plate surface parallel to the lower surface of the support side magnet 80, and is mounted on the tail portion 43 in a fixed state. Examples of the movable body side magnet 101 include neodymium magnets, ferrite magnets, alnico magnets, samarium-cobalt magnets, and the like, but neodymium magnets that can obtain strong magnetic force even in a small size are preferable.

According to the punching portion receiving device 30B, when the movable body 40 is pushed down by the push piece 13 (see FIG. 1) via the punching portion P (see FIG. 1), the support side magnet 80 and the tilting magnetic body 86 Tilts the tilting magnetic body 86 with respect to the movable body side magnet 101 while attracting and engaging with the tilting magnetic body 86, and then the attractive engagement between the tilting magnetic body 86 and the support side magnet 80 is disengaged. While the tilting magnetic body 86 is tilted with respect to the movable body side magnet 101 while the support side magnet 80 and the tilting magnetic body 86 are attracted and engaged, the magnetic force that tries to return to the original state before tilting is the tilting magnetic body 86. Acts on both the support side magnet 80 and the tilting magnetic body 86 and the movable body side magnet 101. These magnetic forces act on the movable body 40 via the tilting magnetic body 86, and urge the movable body 40 in the direction of pushing it up. As a result, when the punching portion P is punched out by the pushing piece 13, a reaction force that opposes the pushing force acting on the movable body 40 from the pushing piece 13 via the punching portion P is secured. Here, since the reaction force secured is such that the movable body side magnet 101 and the tilting magnetic body 86 are provided on the movable body 40, the magnetic force of the movable body side magnet 101 is applied to the fixed magnetic body 85. The tilting magnetic body 86 and the tilting magnetic body 86 are larger than those in the above embodiment of the configuration provided in the movable body 40. In this way, the reaction force against the pushing force from the pushing piece 13 is sufficiently secured, and the punching portion P is sandwiched between the pushing piece 13 and the movable body 40, and the punching portion P is a tilting magnetic body 86. It is pushed down together with the movable body 40 by the head of the vertical displacement of. As a result, the punching force can be more reliably applied to the punching portion P.

(Separate Embodiment 3)
FIG. 10B shows the punching portion receiving device 30C of the third embodiment. In the punching portion receiving device 30C shown in FIG. 10B, the movable body side engaging portion 32 provided on the movable body 40 so as to be attracted and engaged by magnetic force is composed of the movable body magnet 111 and the tilting magnetic body 86. ing. The movable body side magnet 111 is locked to the first locking recess 45 and the second locking recess 47 in the movable body 40. The movable body side magnet 111 is a plate-shaped magnetic body 112 (iron plate in this example) having a plate surface parallel to the lower surface of the support side magnet 80, and a plate similar to the movable body side magnet 101 (see FIG. 10A). It is composed of a composite in which a magnet body 113 having a shape is laminated so as to function as a magnet as a whole. According to the punching portion receiving device 30C of the third embodiment having such a configuration, since the magnetic body 112 is interposed between the tilting magnetic body 86 and the magnet main body 113, the magnet main body 113 is formed by the magnetic body 112. Can be protected.

(Separate Embodiment 4)
FIG. 10 (c) shows the punched-out portion receiving device 30D of the fourth embodiment. In the punching portion receiving device 30D shown in FIG. 10 (c), the support side magnet 121 is used as the support side engaging portion 31 provided on the support 50 so as to be attracted and engaged by magnetic force. The support-side magnet 121 is formed by laminating a magnet body 123 similar to the support-side magnet 80 (see FIGS. 10A and 10B) and a plate-shaped magnetic material 124 (iron plate in this example) as a magnet as a whole. It consists of a complex that is configured to function. According to the punching portion receiving device 30D of another embodiment 4 having such a configuration, since the magnetic body 124 is interposed between the tilting magnetic body 86 and the magnet body 123, the magnet body 123 is formed by the magnetic body 124. Can be protected.

(Separate Embodiment 5)
FIG. 10D shows a punching portion receiving device 30E according to another embodiment 5. The punching section receiving device 30E shown in FIG. 10D is a combination of the above-mentioned another embodiment 3 and another embodiment 4. According to the punching portion receiving device 30E of another embodiment 5 having such a configuration, the magnet body 113 can be protected by the magnetic body 112, and the magnet body 123 can be protected by the magnetic body 124.

Although detailed description by illustration is omitted, the tilting magnetic body 86 is magnetic as a whole by appropriately laminating a required magnet and a magnetic body, for example, laminating a magnetic body, a magnet, and a magnetic body. It may be configured to function as a body.

The punched-out portion receiving device of the present invention can remove, for example, the punched-out portion punched by the upper die in a sheet material that has been punched to obtain a blank having a predetermined shape in which a box body is developed. It can be used for receiving applications.

30 Punching part receiving device 30A to 30E Punching part receiving device 40 Movable body 50 Support 54a Insertion hole 70 Guidance means 71 Elongated opening (guidance means)
72 Shaft (guidance means)
73 Rotation control rod (guidance means)
80,121 Support side magnet (support side engagement part)
85 Fixed magnetic material (movable body side engaging part)
86 Tilted magnetic material (movable body side engaging part)
90 Compression coil spring (urging means)
101,111 Movable body side magnet (movable body side engaging part)

Claims (8)

It is a punching part receiving device that supports and supports the punched part punched by the upper die in the sheet material so that it can be removed as scraps.
A movable body that supports the punched portion and
A support that movably supports the movable body and
Guidance means for guiding the movable body and
The movable body, the movable body side engaging portion provided on the support, and the support side engaging portion so as to be attracted and engaged by magnetic force.
Equipped with
When the movable body is pushed down by the upper mold through the punching portion, the suction engagement between the movable body side engaging portion and the support side engaging portion is disengaged, and the movable body is guided by the guiding means to the movable body. As it travels downward, it moves inward of the support and
The support-side engaging portion is a support-side magnet fixed to the support.
The movable body side engaging portion is
A fixed magnetic material fixed to the movable body and
A tilting magnetic body arranged between the support side magnet and the fixed magnetic body and attached to the movable body so as to be tiltable with respect to the fixed magnetic body.
Including
When the movable body is pushed down by the upper mold through the punching portion, the tilting magnetic body tilts with respect to the fixed magnetic body while the support side magnet and the tilting magnetic body are attracted and engaged with each other, and then the tilting magnetic body is tilted. A punching portion receiving device configured to disengage the attraction engagement between the tilting magnetic material and the support side magnet. It is a punching part receiving device that supports and supports the punched part punched by the upper die in the sheet material so that it can be removed as scraps.
A movable body that supports the punched portion and
A support that movably supports the movable body and
Guidance means for guiding the movable body and
The movable body, the movable body side engaging portion provided on the support, and the support side engaging portion so as to be attracted and engaged by magnetic force.
Equipped with
When the movable body is pushed down by the upper mold through the punching portion, the suction engagement between the movable body side engaging portion and the support side engaging portion is disengaged, and the movable body is guided by the guiding means to the movable body. As it travels downward, it moves inward of the support and
The support-side engaging portion is a support-side magnet fixed to the support.
The movable body side engaging portion is
The movable body side magnet fixed to the movable body and
A tilting magnetic material arranged between the support side magnet and the movable body side magnet and attached to the movable body so as to be tiltable with respect to the movable body side magnet.
Including
When the movable body is pushed down by the upper mold through the punching portion, the tilting magnetic body is tilted with respect to the movable body side magnet while the support side magnet and the tilting magnetic body are attracted and engaged with each other, and then the tilting magnetic body is tilted. A punching portion receiving device configured to disengage the attraction engagement between the tilting magnetic material and the support side magnet. One end side of the tilting magnetic body is engaged with the locking claw portion provided on the movable body in a hooked state, and the other end side of the tilting magnetic body can move up and down to the notch portion provided on the movable body. The tilting magnetic body is attached to the movable body so as to be tiltable in the vertical direction with a portion hooked on the locking claw portion as a fulcrum. Punched part receiving device described in. The punching portion receiving device according to any one of claims 1 to 3, further comprising an urging means for urging the movable body in a direction in which the movable body-side engaging portion approaches the support-side engaging portion. The guidance means is
An elongated opening provided in the support so as to extend downwardly toward the inside of the support,
A shaft portion provided on the movable body so as to engage with the elongated opening, and a shaft portion.
A rotation restricting rod that regulates the rotation of the movable body around the shaft portion,
The punching section receiving device according to any one of claims 1 to 4 . The punching portion receiving device according to claim 5 , wherein the urging means is a compression coil spring externally fitted to the rotation restricting rod. The punched portion receiving device according to claim 5 , wherein the elongated opening is formed in an arc shape that is convex diagonally downward toward the outside of the support. The lower end side of the rotation restricting rod is inserted into an insertion hole provided in the support so as to be movable in the axial direction.
The punching portion receiving device according to any one of claims 5 to 7 , wherein the inner wall surface of the insertion hole is formed in a divergent shape in a direction toward the movable body.

Images