JP2567681Y2 - Rotary drilling machine with punching debris removal device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary type punching apparatus, and mainly to a device for removing imperfect punching that occurs when a large number of fine holes are drilled.

[0002]

2. Description of the Related Art As an apparatus for removing chips in a conventional apparatus, a die cylinder is formed as a hollow body, a hollow shaft is inserted therein, and the chips can pass through the hollow shaft located in the die cylinder. Japanese Patent Publication No. 48-27275 discloses a device in which several hollows are provided in the radial direction as described above and the hollow shaft is connected to an external reduced pressure air source to remove chips. In the known apparatus as described above, fine chips completely punched out of a perforated sheet (hereinafter simply referred to as paper) can be removed, but the punching is incomplete and a part of the paper is partially removed. There is no effect of sucking and removing even those that are slightly connected to.

[0003]

SUMMARY OF THE INVENTION Therefore, the purpose of the present invention is to completely remove the swarf when the punching is incomplete and the swarf is partially connected to the sheet as described above.

[0004]

According to the present invention, one of the cylinders is a punch cylinder.
The other cylinder is a die cylinder, the punch cylinder surface is provided with a semi-cylindrical pin punch support shell having a large number of pin punches implanted thereon, and the other die cylinder is provided with a number of die holes corresponding to the pin punch positions. In the rotary type punching device having a semi-cylindrical hole shell, the conveying path of the perforated sheet downstream of the die cylinder is located at the guide roller position in the axial direction of the guide roller and in the width direction of the perforated sheet. A suction chamber having an elongated suction port is provided on the machine frame. The suction chamber is connected to a suction source by a hose, and a brush directed toward the guide roller peripheral surface is implanted around the suction port. A suction port of the suction chamber is provided at a position outside a bent portion where the perforated sheet sequentially bends in a convex manner; And Rotary-type punching device.

In order to achieve the above-mentioned object, in the rotary punching device with a punching waste removing device according to the present invention, one of the cylinders is a punch cylinder, the other cylinder is a die cylinder, and the surface of the punch cylinder has a large number. A rotary-type punching device having a semi-cylindrical pin-punch support shell in which the pin punch is implanted, and a semi-cylindrical hole shell in which a number of die holes corresponding to the pin punch positions are drilled in the other die cylinder. A suction chamber having a suction port having a narrow suction port in the width direction of the perforated sheet in the axial direction of the guide roller is provided at the guide roller position in the conveyance path of the perforated sheet downstream of the die cylinder. The chamber is connected to a suction source by a hose, and a printing medium facing the guide roller peripheral surface is provided around the suction port. There Yes and implanted, the suction chamber is reciprocally oscillatably fitted in the axial direction of the guide roller, and, in some cases, characterized in that are connected to the reciprocal vibration drive source.

According to another aspect of the present invention, there is provided a rotary-type punching device with a punched-out debris removing device, wherein the tie cylinder is a hollow body, and a phase fitting with a pin punch of the punch cylinder is provided in the die cylinder. And a second suction chamber is provided for the phase slightly in the rotation direction, and the second suction chamber is rotated by a suction pipe with respect to the machine frame outside the cylinder through the hollow rotary shaft of the punch cylinder. In some cases, the suction pipe is connected to a suction source of a suction chamber provided facing the guide roller.

[0007]

In the device according to the first aspect of the present invention, the perforated sheets (hereinafter simply referred to as sheets) sequentially perforated by the pair of cylinders sequentially pass through the suction chamber portion. Because the brush is sequentially wiped, the punch scraps slightly connected to the perforated opening edge are separated from the sheet by the resistance of the brush, and the separated punch is sucked through the suction hole and sucked toward the suction source.

Further, since the suction chamber is provided at the outer portion of the guide roller where the perforated sheet is sequentially bent, the sheet is bent in an arc when the sheet is freely bent, but the punching waste in which the sheet is continuous in part is almost curved. Because of the flat state, a part of the paper is slightly raised from the paper, and it is easy to come into contact with the brush, whereby the scraps are separated from the paper.

According to the second aspect of the present invention, in the first aspect,
In addition, the suction chamber reciprocally vibrates in the axial direction of the guide roller. Therefore, even if the punched debris is not lifted up from the paper even if it is bent in the vibrating direction, the brush action due to the reciprocating motion in the axial direction can completely remove the punched debris. Can be removed.

In the third aspect, the sheet is completely punched,
In addition to the operation of the above-mentioned claim 1 or 2, punching chips falling into the die cylinder are also removed at that time and immediately thereafter.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A representative embodiment of the present invention will now be described with reference to FIGS.
In each figure, reference numeral 10 denotes a die cylinder, and 20 denotes a punch cylinder.
A number of fine holes are formed in the supplied perforated sheet 40 by the group of pin punches 21 and the group of die holes of the die cylinder 10 provided on the outer peripheral surface of the cylinder. A rotary punch A is formed. Immediately downstream of the pair of the die cylinder 10 and the punch cylinder 20, a guide roller 25 for guiding the perforated sheet 40 is mounted on a machine frame 26 in parallel with the die cylinder 10 and the punch cylinder 20. A scrap suction device B is provided on a portion of the outer peripheral surface of the roller 25 where the perforated sheet 40 is engaged. The scrap suction device B is provided on a perforating device A or a suitable immovable member in the vicinity thereof, for example, the machine frame 26, and is supported by a support shaft 30 parallel to the guide roller 25 and a flat suction chamber 31. The opening 32 is flat and elongated in the length direction of the guide roller 25.
A mouthpiece 34 on which a brush 33 is implanted is fitted around. The rear end of the suction chamber 31 is narrowed in a funnel shape and connected to a hose 35 connected to a suction source 44. A pair of left and right brackets 36 protruding from the suction chamber 31 are fixed to the support shaft 30 with a set screw or the like.

The support shaft 30 is rotatably mounted on the machine frame 26. A lever 38 is fixed to one end of the support shaft 30, and the lever 38 is rotated around the support shaft 30. As a result, the entire suction chamber 31 is moved, and the opening 32 thereof can be displaced between a position opposing the guide roller 25 and a position separated therefrom. 26 can be fixed at an arbitrary angle by a set screw 39. In a further embodiment, the support shaft 30 is
In contrast, the support shaft 30 is provided so as to be movable slightly in the axial direction (about 1 mm).
Is connected to the vibrating body of the exciter 43 provided in the above. The structure of the exciter 31 is not particularly limited, such as a purely mechanical one or an electromagnetic one, but an electromagnetic one is easy to handle.
The axial vibration of the support shaft 30 is not necessarily required.

In the other embodiment, a second air chamber 43 for sucking punching chips in a conventionally known die cylinder is provided in the die cylinder 10 immovably with respect to the machine frame 26, The suction source of the second air chamber 43 and the suction source of the waste suction device 13 are a common compressor 39. 41 is a gas-solid separation device provided in the middle of the suction pipe system 35. The second air chamber 43 is located between the punching position of the punch and a slightly unloading-side phase. Further, on the downstream side of the guide roller 25, the perforated sheet 40 is provided.
Transport means or a winding device for transporting the paper.

In order to use the device of the present invention constructed as described above, first, the lever 38 is rotated about the support shaft 30 so that the opening 32 of the suction chamber 31 is guided to the guide roller 25. Away from the position. Next, the perforated sheet 40 guided by the rotary perforating apparatus A is guided to the conveying means through the space between the guide roller 25 and the suction chamber 31. Next, the lever 38 is operated again so that the opening 32 of the suction chamber 31 and the guide roller 25 face each other, so that the brush 33 of the opening 32 comes into contact with the surface of the perforated sheet engaged with the guide roller 25. Thus, when the rotary perforating apparatus A and the conveying means are operated, the perforated sheet 4
When passing through the rotary punching device A, a large number of small holes are drilled by the die cylinder 10 and the punch cylinder 20, and most of the scraps fall into the hollow chamber of the die cylinder 10, and the inside of the second air chamber 43. Is sucked into
It is collected in the gas-solid separation device 41 through the hose 35. However, some of the scraps 40 a are not completely separated from the perforated sheet 40, are partly suspended, and are sent out to the position of the guide roller 25. When the debris connected to the perforated sheet 40 at such a small portion reaches the position of the guide roller 25, the debris curves along the outer peripheral surface of the guide roller 25, but the debris connected to this part is slightly lifted. At the position of the brush 33, the dust is separated by being wiped off, and the separated dust passes through the opening 32, is drawn from the suction chamber through the hose 35 toward the suction source, and is separated into a gas-solid separation device. It is transported to 41.

[0015]

According to the first aspect of the present invention, which is constructed and operated as described above, the perforated sheet is perforated so that the debris partially connected to the perforated sheet does not correspond to the entire width of the perforated sheet. In this position, since the width of the suction port is narrower than that of the perforated sheet, the suction port is peeled off and removed by suction through the suction chamber by any part of the brush planted around the suction port.

Further, since the opening brush of the suction chamber is provided toward a portion where the perforated sheet is curved by the guide roller, when the perforated sheet is curved by the guide roller, the punching dust is slightly perforated. The raised portion is lifted from the sheet, and the raised portion comes into contact with the brush rubbing against the surface, and is reliably peeled off, which is effective.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the first aspect, the brush is disposed on the surface of the perforated sheet in a direction perpendicular to the conveying direction because the suction chamber vibrates in the width direction of the guide roller. On the other hand, it has the effect of moving and exfoliating the punched waste.

In the invention according to claim 3, claim 1 is provided.
In addition to the effects of the above 2, since the second suction chamber is also provided in the die cylinder, the punched and separated products by the punch cylinder and the die cylinder are almost suction-removed through the second suction chamber, and As a suction source common to the suction chamber at the guide roller position, the entire apparatus becomes compact.

Effects Specific to the Embodiment In the embodiment, not only the effects of the inventions described in the claims can be obtained, but also the suction chamber 31 is provided with the support shaft 3.
0, and can be fixed at an arbitrary angle, so that the brush 33 of the suction chamber 311 can be separated from the perforated sheet 40, and the brush 33 is separated from the guide roller peripheral surface during the setup operation. The contact can be made only at the time of work, and by finely adjusting the inclination angle, the punching dust removing effect can be more remarkably adjusted.

[Brief description of the drawings]

FIG. 1 is a partially longitudinal side view showing a main part of the present invention.

FIG. 2 is a perspective view.

FIG. 3 is a schematic side view of a mechanism showing a relationship between a die cylinder and an air system.

[Explanation of symbols]

 25 Guide roller 30 Support shaft 31 Suction chamber 32 Opening 33 Printing hole 40 Perforated sheet 40a Dust removal

Claims (3)

(57) [Scope of request for utility model registration] 1. One of the cylinders is a punch cylinder,
The other cylinder is a die cylinder, the punch cylinder surface is provided with a semi-cylindrical pin punch support shell in which a number of pin punches are implanted, and the other die cylinder is provided with a number of die holes corresponding to the pin punch positions. A rotary type punching device having a semi-cylindrical hole shell, wherein the conveying path of the perforated sheet downstream of the die cylinder is located at the guide roller position in the width direction of the perforated sheet in the axial direction of the guide roller. A suction chamber having an elongated suction port is provided on the machine frame, the suction chamber is connected to a suction source by a hose, and a brush directed toward the guide roller peripheral surface is planted around the suction port. Wherein a suction port of the suction chamber is provided at a position outside a bent portion where the perforated sheet is sequentially bent to be convex. Rotary drilling machine. 2. One of the cylinders is a punch cylinder,
The other cylinder is a die cylinder, and the surface of the punch cylinder is provided with a semi-cylindrical pin punch support shell in which a number of pin punches are implanted, and the other die cylinder is provided with a number of die holes corresponding to the pin punch positions. In the rotary type punching device having a semi-cylindrical hole shell, the conveying path of the perforated sheet downstream of the die cylinder is located in the guide roller position in the axial direction of the guide roller and in the width direction of the perforated sheet. A suction chamber having an elongated suction port is provided on the machine frame. The suction chamber is connected to a suction source by a hose, and a brush directed toward the guide roller peripheral surface is implanted around the suction port. The suction chamber is provided so as to be capable of reciprocating vibration in the axial direction of the guide roller, and is connected to a reciprocating vibration driving source. 2. A rotary punching device with a punching waste removing device according to 1. 3. The tie cylinder is a hollow body, and a second suction chamber is provided in the die cylinder from a phase in which the pin cylinder of the punch cylinder is fitted to a phase slightly in the direction of rotation, The second suction chamber is non-rotatably provided to the machine frame outside the cylinder through a hollow rotary shaft of the punch cylinder by a suction pipe, and the suction pipe is provided facing the guide roller. 3. The rotary punching device with a punching waste removing device according to claim 1, wherein the rotary punching device is connected to a suction source of a suction chamber.