JPS62203624A - Rolled punching method - Google Patents

Abstract

PURPOSE:To surely discharge a punched part ino a chuter, etc., by punching a sheet with a punching idle and detaining the punched part in the punching die by a temporary fixing measure and removing the punched part by a compressed air. CONSTITUTION:A rotating roll 3 and a rotating roll 4 are brought into contact in parallel to travel the long sheet 5 through the clearance of the rolls. A cutting edge 1 dividing and forming the punching die 2 bites successively in the sheet 5. The cutting edge 1 and the temporary fixing means 7 bite the sheet 5 also to detain it. Then, when the punched part 6 is rotated up to the discharging position, the compressed air is blown off to detach the punched part 6 from the temporary fixing means 7 to feed into the chuter 13. Plural numbers of the sheet 5 are laminated to form a common punched hole. In this punching method, the punched part is surely discharged to the chuter, etc., and even plural sheets are surely detained.

Description

[Detailed description of the invention] [Industrial application field] This invention uses a rotating roll that has cutting edges on its surface.

The present invention relates to a rolling punching method for continuously and repeatedly punching holes of a predetermined shape in a long sheet.

[Conventional technology]

Conventionally, a relatively thin tape of paper, glass stick, etc. is run between a rotating roll having cutting edges partitioned into a predetermined shape on its surface and a rotating roll with a smooth surface, and the pair of rolls are A rolling punching method is known in which holes of a predetermined shape are repeatedly punched out continuously on the tape by rolling the tape in opposite directions.

[Problem that the invention seeks to solve]

In the previously known rolling punching method described above, when the tape to be processed is a thin plastic tape, the unnecessary punched parts detach from the cutting blade and fall onto the running glass tape, and are further stuck due to static electricity. This has the disadvantage that it runs along with the glass tape, which adversely affects the next process.

[Means for solving problems]

In order to eliminate the above-mentioned drawbacks, the present invention aims to provide a transfer-type punching method that can reliably recover the unnecessary punched parts. is held in the cutting die by temporary fixing means, and then, when the cutting die is transferred to the next position, the punched portion is removed from the cutting die using compressed air under positive pressure or negative pressure. It is configured as follows.

〔Example〕

Next, the present invention will be explained in detail using illustrated examples.

FIGS. 1 and 2 show an example of a rotating roll used in carrying out the method of the present invention, in which a cutting edge 1 is protruded on the surface of the roll main body of the ml rotating roll 6 having a circular cross section. The cutting blade 1 is formed in a predetermined shape, for example, a rectangular frame shape, and constitutes a cutting die 2. The bottom surface of the cutting die 2 is provided with a compressed air discharge hole 9 that communicates with the compressed air supply hole 8 bored along the central axis of the first rotating roll 6. Temporary fixing means 7, which will be described later, is provided near the hole 9.
For example, a protrusion with a sharp tip is provided.

Furthermore, large-diameter flange portions 10.10 are installed concentrically at both ends of the roll main body of the rotating roll 6, and the outer peripheral surface of this flange portion and the first rotating roll 3
The distance between the roll body and the height of the cutting edge 1 is set to be the same as or approximately 11 times the height of the cutting edge 1.

Reference numeral 11 denotes a rotating shaft that is integrally fixed to one of the 7-run sections 10, and this rotating shaft 11 is rotatably and hermetically connected to a rotary joint 12 for supplying compressed air. The compressed air supply hole 8 is bored along a common center line of the rotary shaft 11, the one flange portion, and the rotation roll. Further, a driven gear 15 for rotational transmission is fixed to the rotating shaft 11.

FIGS. 6 to 5 show an embodiment of the method of the present invention, and as shown in FIG. A second rotating roll 4 having an outer diameter approximately equal to The tape to be processed on which the glass tape is laminated is run, and the rotating rolls 6.4 are rotated in mutually opposite directions. As the pair of rotating rolls 3.4 rotate, the cutting blades 1 that define the cutting die 2 gradually bite into the sheet.

At this time, together with the cutting blade 1, the temporary fixing means 7 also pierces the sheet and locks it. In this way, the last cutting edge 1 bites into the sheet and the punched part 6 is cut into the cutting die 2.
held within. Further, when the pair of rotary rolls rotates to the next position, that is, the discharge position of the punched part 6, the compressed air supplied to the rotary joint 12 becomes compressed air, as shown in FIGS. 4 and 5. It is discharged from the discharge hole 9 via the supply hole 8 . As a result, the temporary part 6 is removed by the cutting die 2 and the temporary fixing means 7.
It is separated from the camera and supplied into the chute 13.

In this way, as shown in FIG. 6, the sheet 5 in which punched holes 14 of a predetermined shape are repeatedly punched is wound up by a winding device (not shown).

In the above-mentioned example, the compressed air discharge hole 9 is provided in the bottom of the cutting die 2, and the punched portion 6 is removed by the compressed air discharged from the hole. Suction may also be performed by applying pressure. Furthermore, the number of tapes to be processed constituting the notebook 5 does not have to be two.

〔Effect of the invention〕

According to this invention, a first rotating roll 3 has a cutting blade 1 protruding from its surface and a cutting die 2 having a predetermined shape is defined by the cutting blade, and a second rotating roll 4 having a smooth upper surface. are brought into contact with each other in parallel, and these pair of rotating rolls 6
．． 4 in opposite directions, a long sheet 5 is run between these rotating rolls, and holes of a predetermined shape are repeatedly punched into this sheet 5 using the punching die 2. In the dynamic punching method, the sheet 5 is punched out by the punching die 2, and at the same time, the punched portion 6 is attached to the punching die 2 by the temporary fixing means 7.
and then, when the cross-cut die is transferred to the next position, the punched portion 6 is removed from the die using compressed air under positive pressure or negative pressure. Therefore, the punched portion 6 can be reliably discharged to a chute or the like without accidentally falling onto the sheet. Furthermore, if a sharp protrusion at the tip is used as the temporary fixing means, even if there are multiple pieces of tape to be processed that make up the sheet, it will easily pierce through the tapes, making it possible to securely fix them. be.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a first rotating roller used in carrying out the method of the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 1. 6 and 5 show an embodiment of the present invention, in which FIG. 5 is a partially longitudinal side view showing the state in the middle of punching, and FIG. 4 shows the punched part after punching is completed. FIG. 5 is a partially vertical side view showing a state in which the device has been moved to a position facing the computer, and FIG. 5 is a plan view of the portion shown in FIG. 4. FIG. 6 is a perspective view of a punched sheet produced by the method of the invention. In the figure, 1 is a cutting blade, 2 is a cutting die, 6 is a first rotating roll, 4 is a 29th rotating roll, 5 is a long sheet, 6 is a punched portion, and 7 is a temporary fixing means. Figure 1-4 Figure 2

Claims (4)

[Claims] (1) A first rotating roll 3 with a cutting edge 1 protruding from its surface and a cutting die 2 of a predetermined shape defined by the cutting edge, and a second rotating roll 4 with a smooth surface. , a pair of rotating rolls 3 and 4 are brought into contact with each other in parallel and rolled in opposite directions, and a long sheet 5 is run between these rotating rolls, and the sheet 5 is subjected to the punching process. In a rolling punching method in which punching holes of a predetermined shape are repeatedly punched using a die 2, the sheet 5 is punched out using the die 2, and at the same time, the punched portion 6 is attached to the die by a temporary fixing means 7. 2, and then when this cutting die 2 is rolled to the next position, the punched part 6 is removed from the cutting die 2 with compressed air 7 under positive pressure or negative pressure. Characteristic rolling punching method. (2) The temporary fixing means 7 is a protrusion with a sharp tip, and the protrusion pierces the portion 6 punched out with the cutting die 2. Dynamic punching method. (3) A compressed air outlet 9 is provided on the bottom surface of the cutting die 2, and positive pressure compressed air is discharged from the outlet 9 to remove the punched portion 6 that is retained in the cutting die. A rolling punching method according to claim 1 or 2, characterized in that: (4) A rolling punching method according to any one of claims 1 to 5, characterized in that a plurality of sheets 5 are stacked and run simultaneously to form a common punching hole.