JPS6036919B2 - drilling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a punching machine for forming through holes for binding in paper such as books.

A punching machine that forms holes for binding in books and papers uses a hollow key J to punch holes, and the paper shoulder produced by the punching is pushed up into the hollow part of the hole and discharged.

In this case, an electric motor with a hollow shaft is arranged vertically so that it can move up and down, and the perforated calendar is pushed up from the hollow part of the aperture into the hollow part of the shaft, and discharged into the calendar basket provided at the top of the electric motor. It is configured. Although this configuration has the advantage of being simple, compact, and lightweight, the waste basket is attached to the top of the electric motor, and the lower part of the waste basket is required to insert the shoulder that is pushed up from below into the waste basket. A shoulder slot had to be installed in the machine, which had the disadvantage that debris would spill out of the slot when the calendar basket was removed from the electric motor.

For this reason, the slot of the calendar basket is made to protrude inward from the bottom,
Attempts have been made to create a low-slung area around the protruding slot to store the almanac, but in this case too, when the shoulder basket is full of debris, the waste spills out of the slot when removed from the motor.

Therefore, if a large exhaust hole for cooling is formed in the upper part of the electric motor, that is, in the bracket, debris will enter the inside of the electric motor, and moreover, a garbage basket will be layered on this bracket, which will have little cooling effect on the electric motor. So, 4・
If a type of electric motor was used, it had the disadvantage that it could not be used for a long time due to the temperature rise.

The present invention has been made in view of the above circumstances, and provides a drilling machine that is equipped with a waste basket that does not spill over the shoulder, cools the electric motor effectively, and can be used for a long time even if a small electric motor is used. The purpose is to

Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. Fig. 1 is a front view showing a vertical section of the main part of a drilling machine showing an embodiment of the present invention; FIG. 2 is a cross-sectional view of the main part.

In FIG. 1, the drilling machine has a support 2 provided on a base 1, and a vertical electric motor 3 is attached to the support 2 so as to be moved up and down by a handle 4.

The electric motor 3 has a hollow shaft 5 and a hollow key J6 attached to the lower end thereof, and the upper end of the shaft 5 extends to the upper surface of the bracket 7 at the upper part of the electric motor 3.

Further, the upper part of the electric motor 3 is formed with a waste chamber 8 from which the upper end of the shaft 5 extends, and the upper part of this chamber 8 is closed by a thin plate 9. 10 is formed.

The shoulder discharge roller has a removable waste basket 12 with an exhaust hole 11 at the top, a large number of small through holes 13 are formed on the bottom of the bracket 7 of the motor 3, and a waste basket 12 is provided at the top of the shaft 5. The cooling air is configured to flow in the direction indicated by an arrow 15 by rotation of the provided blades 14. In FIG. 2, the drilling machine has a circular calendar chamber 8 formed using a bracket 7 on the upper part of the electric motor 3, and a shoulder basket 12 can be attached and detached with a hook 16 along the outer periphery of the electric motor 3. is attached to.

The electric motor 3 is provided to be movable up and down by a slide plate 17 that covers the column 2, and the end of the handle 4 is connected to a pin 18 provided on the column 2 and a pin 19 provided on the slide plate 17. The electric motor 3 is moved up and down by moving a slide plate 17 up and down using a handle 4. In such a configuration, the drilling machine
When the electric motor 3 is rotated and the handle 4 is lowered, a through hole for binding can be easily formed in paper, books, etc. using the rotating awl 6.

When holes are made in books and papers one after another, paper waste generated by the perforation accumulates in the hollow part of the aperture 6, and gradually passes through the hollow part of the shaft 5 of the electric motor 3 and flies out from the upper end of the shaft 5. It turns out. Furthermore, the shoulders protruding from the upper end of the shaft 5 are scattered to the waste chamber 8, but inside this chamber 8, a blade 14 provided at the upper end of the shaft 5 is rotated by the rotation of the shaft 5, and the arrow 15 The wind is flowing as indicated by.

Therefore, the drilling waste thrown into the shoulder chamber 8 does not stay at the bottom of the waste chamber 8, but is floated up and transferred to the discharge row 0, especially as the wind blows up from the through hole 13 formed in the bottom. be done.

Moreover, since the perforation debris is rotated along the peripheral wall in the debris chamber 8 by the rotation of the blade 14, it is reliably discharged from the discharge port 10.

The debris discharged from the discharge row 0 enters the shoulder basket 12 and accumulates at the bottom of the shoulder basket 12, and the wind flow generated by the rotation of the blades 14 flows inside the electric motor 3 as indicated by the arrow 15. The suction electric motor 3 is cooled, and the waste is exhausted from the waste chamber 8 through the exhaust port 10 and from the exhaust hole 11 of the shoulder cage 12.

Therefore, all the shoulders are efficiently transferred from the shoulder chamber 8 to the shoulder basket 12 via the discharge port 10, and the electric motor 3 sucks the heated air inside by the action similar to that of a fan with blades 14 and exhausts the waste basket 12. The air is exhausted from the hole 11 and is effectively cooled. In particular, the rotation speed of the blade 14 is set at high speed by being directly connected to the shaft 5 of the electric motor 3, so that the perforated waste formed of paper reliably runs along the peripheral wall of the waste chamber 8 and is discharged from the discharge port 10. Therefore, even if the discharge port 10 is formed small, no layer will accumulate in the waste chamber 8. If calendar basket 12 is full of calendars, shoulder basket 1
2 can be removed from the hook 16 and the waste can be thrown away at any desired location.At this time, since the entrance of the waste basket 12 is formed at the top, the waste will not be thrown away, making it extremely easy to throw away.

Moreover, if this waste basket 12 is hung horizontally from the discharge port 10 formed on the upper side surface of the electric motor 3, it can be lengthened downward as desired. If it is made wide, a sufficient internal volume can be secured.

Further, due to the air exhaust effect of the blades 14, even if a path for transporting debris is formed laterally or downward from the discharge port 10, the shoulder can sufficiently pass through the transport path.

Therefore, the shoulder basket 12 is not necessarily limited to this embodiment, and any container that has an inlet at the top that opens into the outlet 10 is sufficient.

The blades 14 may be made of a soft and bendable material such as rubber or film, and do not need to be formed into very large blades.

However, if the blades 14 are made larger, the action of the fan will become larger and the exhaust air shown by the arrow 15 will become stronger.
The cooling effect is improved, the electric motor 3 can be made smaller, and temperature rise can be sufficiently suppressed even when used for a long time.

Further, since the electric motor 3 has a cooling exhaust air hole 13 formed in the shoulder chamber 8 to emit BE air, it is not necessary to form a 9E air hole on the outer periphery, which is convenient because there is no risk or deterioration of the aesthetics.

Air intake for cooling the electric motor 3 may be performed from the lower end of the electric motor 3. In this case, the air is taken in from the lower part and discharged to the upper part, so that a sufficient cooling effect can be expected.

As explained above, according to the present invention, a waste chamber is formed in the upper part of the electric motor, and by rotating the blade, a through hole communicating with the inside of the electric motor is provided at the bottom of the shoulder chamber, thereby ensuring cooling of the electric motor and discharge of the shoulder. Furthermore, a shoulder basket can be provided as desired, and a waste basket can be formed that is convenient for disposing of waste, which has great industrial effects.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a vertical section of a main part of a drilling machine showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the main part. 3...Electric motor, 5...Shaft, 6...
Aperture, 8...shoulder chamber, 12...waste basket,
14... Feather. Figure 1 Figure 2

Claims (1)

[Claims] 1. In a drilling machine that has a hollow drill at the lower end of the shaft of a vertical motor equipped with a hollow shaft and discharges waste from the upper end of the shaft, a waste chamber from which the upper end of the shaft extends is formed at the top of the motor, and this waste is removed. The upper part of the chamber is closed, an outlet is formed in one side wall, a waste basket with an exhaust hole is attached to the outlet, a blade is fixed to the upper end of the shaft, and an electric motor is attached to the bottom of the waste chamber. A drilling machine characterized by forming a through hole that leads to the inside.