JP6353652B2 - Punching and cutting device - Google Patents

Description

  The present invention relates to a punching and cutting device for punching and cutting a material to be cut such as a synthetic resin sheet, a film, paper, and cardboard into a predetermined shape.

As a technique for punching and cutting a material to be cut such as a synthetic resin sheet, film, paper, cardboard or the like into a predetermined shape, punching with a Thomson blade is known.
In the punching process using a Thomson blade, a band-shaped Thomson blade is bent as a cutting blade to form a punching shape, which is fixed to a cutting die. And while arrange | positioning a cutting type | mold so that the blade edge | tip of a Thomson blade may become parallel to the surface of a to-be-cut material, it mounts a to-be-cut material on a receiving stand, and lowers a cutting die from this state, The entire length of the cutting edge is pressed against the material to be cut, and the material to be cut is punched and cut (see, for example, Patent Documents 1 and 2).

  In such a punching process using a Thomson blade, in order to take out a punched and cut portion from a material to be cut, for example, in the apparatus disclosed in Patent Document 1, a film base material that is a material to be cut is conveyed together with an underlay sheet. The molded product punched and cut from the film base is carried out in a state of being placed on the underlay sheet. Moreover, in the apparatus disclosed in Patent Document 2, the portion to be cut and punched from the material to be cut is not completely punched, but the portion is torn and discharged while being transported in a state of being connected by a minute connection portion.

  Also, in such punching with a Thomson blade, an up-and-down moving upper and lower lifting platform and a lower lifting platform are installed oppositely, and a male mold is attached to the upper surface of the lower lifting platform, and a suction plate is attached to the lower surface of the upper lifting platform. When the upper lifting platform descends to the punching blade mounting plate on the lower surface of the panel, the Thomson blade 14 is attached to the molded product by pressing the molded product against the raised male mold, and the suction plate is molded to the upper lifting platform. Disclosed is a continuous punching machine using a Thomson blade provided with a ventilation means for sucking and sucking a punched molded product and sending a compressed air and releasing it. (See Patent Document 3).

JP 2010-207936 A JP 2004-160780 A JP 2002-113696 A

  However, in Patent Documents 1 and 2, since the punching process to trim the molded product formed on the material to be cut into a product is performed, the next process (apparatus) for performing additional work after the punching process is performed. Carrying is not considered. On the other hand, even in Patent Document 3, damage to the transport means for transporting the molded product to the next process due to a punching load such as a Thomson blade, addition after the punched and cut molded product is moved to a predetermined position table and stopped No consideration is given to the curling, misalignment of the molded product at the time of conveyance to the next process (apparatus) in which the work is performed, or conveyance to the next process in which additional work is performed, positioning, or the like.

  The present invention has been made in view of the above circumstances, and reduces the damage to the transport means for transporting the molded product to the next process due to the punching load such as a Thomson blade, and the molded product punched and cut from the material to be cut. An object of the present invention is to provide a punching / cutting device provided with a transport mechanism for transporting so as to be accurately positioned in the next process without causing a twist or misalignment.

A punching and cutting apparatus according to the present invention is a punching and cutting apparatus for punching and cutting a material to be cut into a molded product having a predetermined shape, a cutting die to which a cutting blade is attached, a cradle for receiving the cutting blade , An elevating mechanism for elevating and lowering the cradle, and the cradle has a conveyance mechanism that is guided by a guide rail and conveys the molded product while being held on the cradle, and punches and cuts the material to be cut The load receiving block supports the cradle by moving below the cradle raised by the elevating mechanism so that the cradle is lifted from the guide rail. .

  According to the present invention, damage to the transport means for transporting the molded product to the next process due to a punching load such as a Thomson blade is reduced, and the molded product punched and cut from the material to be cut is not curled and misaligned. It can be transported so as to be accurately positioned in the next process.

It is explanatory drawing which shows the outline of the punching-cutting apparatus which concerns on embodiment of this invention, (a) is a top view, (b) is AA sectional drawing of (a). It is a top view which shows the outline of the cradle with which the punching-cutting apparatus which concerns on embodiment of this invention is provided. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is explanatory drawing which shows the process of punching and cutting a to-be-cut material by the punch cutting apparatus which concerns on embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  A punching and cutting apparatus 1 according to the present embodiment is for punching and cutting a material to be cut S made of, for example, a long film into a predetermined shape, and a cutting die 2 to which a Thomson blade 21 as a cutting blade is attached, And a cradle 3 for receiving the Thomson blade 21 (see FIG. 5A). The Thomson blade 21 is formed by bending a belt-shaped blade into a predetermined punching shape, and is attached to the surface facing the cradle 3 of the cutting die 2.

  Further, as shown in FIG. 1 (b), the punching / cutting device 1 includes a feed mechanism 6 including a feed roller 60 and a nip roller 61, and a cutting die 2 and a cradle 3 sandwiched between the material to be cut S. They are respectively provided on the upstream side and the downstream side in the supply direction. In punching and cutting the material to be cut S, the material to be cut S is intermittently supplied onto the cradle 3 by such a feeding mechanism 6 in a tension state without slack.

The cutting die 2 can be moved up and down by a drive mechanism 20 such as a hydraulic cylinder, and the cutting tip 2 of the Thomson blade 21 attached to the cutting die 2 is positioned above the cradle 3 so that the cutting edge is parallel to the surface of the workpiece S. Is arranged. As a result, the cutting die 2 is lowered and the entire length of the cutting edge of the Thomson blade 21 is pressed against the material to be cut S on the cradle 3, thereby forming a molded product S ₀ ( 5f) is punched out.

Further, a suction hole 30 is formed in the upper surface of the cradle 3, and a vacuum device (not shown) is connected to a vent hole 31 communicating with the suction hole 30 via the hose 7 (FIGS. 2 and FIG. 2). 3). As a result, the material to be cut S that is sucked from the suction hole 30 formed in the upper surface of the cradle 3 and supplied to the cradle 3 is fixed to the cradle 3. after cutting punched workpiece S by pressing, the molded article S ₀ stamped, curled, or positional displacement without causing a suction mechanism is provided to hold onto the cradle 3 as it is.

Further, the cradle 3 moves while being guided by a guide rail 8 made of, for example, a high-precision linear guide, and the molded product S ₀ punched on the cradle 3 is left in the punched state. It has a transport mechanism that transports it while holding it on top. When the material to be cut S is punched and cut, the cradle 3 is removed from the guide rail 8 so that the load of the cradle 3 receiving the punching load of the cutting die 2 does not damage the guide rail 8. The cradle 3 is supported by the load receiving block 5 so as to be in a lifted state. For this reason, an elevating mechanism 4 having an air cylinder or the like is installed below the cradle 3. The elevating mechanism 4 is raised to lift the cradle 3, while the load receiving block 5 is received below the cradle 3. The cradle 3 is seated on and supported by the load receiving block 5 by moving the cradle 3 without sliding and then lowering the lifting mechanism 4.

  The driving means for moving the cradle 3 to the next process is not particularly limited, but in the illustrated example, a slider type electric cylinder (for example, a ROBO Cylinder (registered trademark) 9 is provided as the driving means, and this slider type electric cylinder 9 is provided. The pedestal 3 is attached via a pedestal 91 fixed to the slider.The pedestal 91 is provided with an escape portion 92 so as not to interfere with the operation of the elevating mechanism 4 for raising and lowering the pedestal 3. Guide pins 93 are vertically erected through the insertion holes 32 drilled at the four corners of the cradle 3. The guide pins 93 erected on the base 91 are inserted into the cradle 3. 32, the cradle 3 is attached to the slider-type electric cylinder 9 via the pedestal 91, thereby suppressing the horizontal displacement when the cradle 3 is raised and lowered. Thereby enabling the movement of the cradle 3 by Da-type electric cylinder 9.

Next, a process of punching and cutting the material S to be cut into a predetermined shape by using such a punching and cutting apparatus 1 will be described.
FIG. 5 is an explanatory diagram showing the punching and cutting step, and only the reference numerals of FIGS. 5A and 5F are shown in the drawing.

When the cradle 3 is guided by the guide rail 8 and returns from the conveyance destination, the material to be cut S is intermittently supplied onto the cradle 3 (see FIG. 5A). Then, the cradle 3 is raised by the elevating mechanism 4 (see FIG. 5B), and the load receiving block 5 is moved below the cradle 3 (see FIG. 5C). Next, the elevating mechanism 4 is lowered to support the cradle 3 on the load receiving block 5 so that the cradle 3 is lifted from the guide rail 8 (see FIG. 5D).
At this time, guide pins 93 erected perpendicularly to a pedestal 91 fixed to the slider of the slider type electric cylinder 9 as driving means are inserted into the insertion holes 32 drilled at the four corners of the cradle 3. In addition, it is possible to prevent a horizontal displacement when the cradle 3 is raised and lowered.

In such a process, when the cradle 3 is raised by the elevating mechanism 4, the material to be cut S is fixed to the upper surface of the cradle 3 by being sucked from the suction holes 30 formed in the upper surface of the cradle 3. In this state, the cutting die 2 is lowered, and the Thomson blade 21 is pressed against the workpiece S on the cradle 3 (see FIG. 5E). Thus, the cut workpiece S is punched, molded article S ₀ of the predetermined punching shape from the cut material S is punched out, the molded article S ₀ is held on the pedestal 3 as it is.

  Thereafter, the cutting die 2 is raised (FIG. 5 (f)), and the cradle 3 is lifted by the lifting mechanism 4 together with this (see FIG. 5 (g)), and then the load cradle 5 is moved to move the cradle. 3 is retracted from below (see FIG. 5H).

  After the load receiving block 5 is retracted, the elevating mechanism 4 is lowered to support the pedestal 3 on the pedestal 91 fixed to the slider of the slider type electric cylinder 9 (see FIG. 5 (i)). Then, the slider type electric cylinder 9 is driven to guide the cradle 3 to the guide rail 8 and move to the transport destination.

In this case, the molded article S ₀ which is held by suction on the upper surface of the cradle 3 is thinner a flexible film, curling remains punched from the cutting object S, a given without causing positional deviation It is conveyed in the direction of. Therefore, the molded article S _0, can be transported to be accurately positioned in the next step.

  While the present invention has been described with reference to the preferred embodiment, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be used as a punching / cutting device for punching and cutting a material to be cut such as a synthetic resin sheet, film, paper, cardboard or the like into a predetermined shape.

DESCRIPTION OF SYMBOLS 1 Punch cutting device 2 Cutting die 21 Cutting blade 3 Receiving base 30 Suction hole 32 Insertion hole 4 Lifting mechanism 5 Load receiving block 8 Guide rail 9 Slider type electric cylinder 91 Base 92 Escape part 93 Guide pin S Cut material S0 Molded product

Claims (5)

A punching and cutting device for punching and cutting a material to be cut into a molded product of a predetermined shape,
A cutting die to which a cutting blade is attached, a cradle for receiving the cutting blade, and a lifting mechanism for lifting and lowering the cradle ,
The cradle includes a transport mechanism that transports the molded product while being guided by a guide rail while holding the molded product on the cradle.
A load that supports the cradle by moving below the cradle raised by the elevating mechanism so that the cradle is lifted from the guide rail when the workpiece is punched and cut. A punching and cutting apparatus comprising a receiving block.   The cradle sucks from a suction hole drilled in the upper surface of the cradle, fixes the material to be cut supplied on the cradle, and a molded product punched from the material to be cut is The punching and cutting device according to claim 1, further comprising a suction mechanism that is held on the cradle. The transport mechanism includes a slider-type electric cylinder as a driving means,
The pedestal is fixed to the slider of the slider-type electric cylinder, and the pedestal is attached to the pedestal by inserting a guide pin standing vertically to the pedestal into an insertion hole formed in the pedestal. The punching / cutting device according to claim 1 or 2, wherein the punching / cutting device is attached to the slider-type electric cylinder. The punching and cutting device according to claim 3, wherein the pedestal is provided with an escape portion that does not hinder the operation of the elevating mechanism.   The punching and cutting device according to claim 1, wherein the cutting blade is a Thomson blade.

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