JP2538290B2 - Automatic punch machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic punching machine that automatically punches a plurality of documents by stacking them.

(Prior Art) Conventionally, when punching holes in multiple documents at once, the punching process was performed by a manual punching machine. However, it is recorded by a recording device such as a copying machine and used for conference materials and fascias. When making materials etc., it is necessary to align, fold, punch or bind the recorded materials after recording,
It is considered to improve the efficiency of total copy work by automating these processes, and there has been proposed a device that automates punching process in addition to automating work such as sorting and folding of copies. Kai 61-9418
No. 0, JP-A-61-84662, Journal of Electrophotographic Society, Volume 24, 3
(1985) pp. 188-194).

By the way, in this kind of automatic punching machine, a motor is usually used as a drive source for generating punching force, but the number of documents punched at one time is more than the allowable number, or the thickness of one document is too large. If it is thicker than the specified value,
The motor may be locked or overloaded during the processing operation and may stop.

In such a case, it is necessary to pull up the punch pin, and for that purpose it is necessary to manually reverse the rotating shaft of the motor that is the drive source, but this is often structurally impossible, so recording during processing The paper must be torn and removed one by one, and the work is cumbersome and time consuming.

(Object and Configuration of the Invention) The present invention has been made in view of the above points, and makes it easy to remove a recording sheet that is being processed even if the motor that is the driving source of the punching process is stopped during the punching process. In order to achieve this purpose, a means for manually rotating the motor from the outside is fixedly or detachably attached to the motor rotating shaft.

(Example) The present invention will be described below with reference to the drawings.

FIG. 1 shows a perspective view of an embodiment of an automatic punching machine according to the present invention.

The punching machine 1 is fixed to the central part of claim 2,
Worm gear that can be reciprocally rotated by punch drive motor M
11, a gear 13 that is supported by a holder 12 and rotates by meshing with the worm gear 11, and two crank members 14a and 14b that are fixed on both sides of the gear 13 in a positional relationship that is deviated by an angle of a certain angle from the rotation axis, The crank members 14a and 14b have swinging pieces 15a and 15b rotatably coupled to each other, and the punch pins 16a and 16b extending from the lower ends of the swinging pieces 15a and 15b have pin guides 17a integrated with the holder 12. 17b receives the worm gear 11, the gear 13, and the crank members 14a, 14 by the rotation of the motor M.
b, the punch pins 16a, 16b are moved up and down via the swinging pieces 15a, 15b to be inserted into and removed from the dies 17a, 17b which are integrated with the horizontal table 17c. Punch a sheet of document P (partially shown in phantom in the figure). Since the punch pins 16a, 16b are positioned slightly lower than the uppermost position, the tips of both pins are set in the pin guides 16a, 16b, so that the punched piece of paper surely comes out of the pin. The punch residue is stored in a case detachably attached to the lower side of the horizontal table 17c.

Behind the punch drive motor M, a metallic pulley 3 is fixed to the rotating shaft of the motor M, and the peripheral surface of the pulley 3 is provided with fine irregularities so that a finger does not slip. When the punching machine is installed in the apparatus, it is important to install it so that fingers can reach the pulley 3 from the outside for the reason described later.

 The punching operation is performed as follows.

When the punch drive motor M starts rotating, the worm gear
11 rotates, and gear 13 meshing with this rotates. As a result, two crank members 14 fixed to the rotating shaft of the gear 13
Although the a and 14b rotate, the two crank members 14a and 14b are fixed in a positional relationship shifted by a certain rotation angle (for example, 50 degrees).
The punching work with 16a and 16b is also shifted in time. By doing so, the load on the punch drive motor M can be reduced. In this operation, the metal pulley 3 has a flywheel effect, and has a function of increasing the punching ability by the punch pins 16a and 16b.

When the punch drive motor M detects one revolution by an optical sensor or the like, the motor M is stopped. Based on the output from the detection means, it is possible to determine whether the punching operation is normally performed or whether the punching operation is abnormal due to motor lock or the like.

By the way, if the punch driving motor M is locked during the punching operation, the power is naturally turned off to stop the operation.
At this time, since the punch pins 16a and 16b are still biting into the document P, the document P cannot be removed. At this time, the pulley 3 attached to the rear portion of the motor is rotated by a finger to rotate the motor M, and the punch pins 16a and 16b are pulled out upward. When the punch pins 16a and 16b come out of the document P, the document P can be removed without damage.

FIG. 2 shows another embodiment for freely rotating the punch drive motor M.

In this embodiment, a rotary crank member can be coupled to the rotary shaft end of the punch drive motor M.

The rear end 4a of the rotary shaft 4 is formed in a rectangular shape, and the crank member 5 is provided with a square hole 5a (shown by a broken line) at the tip thereof. Normally, the crank member 5 is separately prepared as a tool, and when the motor is locked, the crank member 5 is moved in the arrow direction at the rear end 4a of the rotary shaft 4.
The punch pin can be pulled out from the document because the motor M can freely rotate when the crank member 5 is turned by fitting it to the square hole 5a.

This type of crank member may be fixed to the end of the rotation shaft of the motor M without being removable.

(Effects of the Invention) As described above, in the present invention, means for manually rotating the punch drive motor from the outside is fixedly or detachably attached to the rotary shaft of the motor.
Even if the punch drive motor is stopped during the punching process due to a lock or the like, the punch pin can be easily pulled out to remove the document being processed, so that the document is not wasted.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a punching machine according to the present invention, and FIG. 2 is a perspective view of a main part of another embodiment of the punching machine according to the present invention. 1 ... Punching machine, 16a, 16b ... Punch pin, 2 ... Frame, 3 ... Pulley, 4 ... Motor rotating shaft, 5 ... Crank member, 5a ... Square hole

Claims (2)

(57) [Claims] 1. An automatic punching machine for moving a punch pin up and down by a motor, wherein a disc-shaped drive means is connected to a rear end of a rotation shaft of the motor, and the punch means is manually driven to rotate from the outside. An automatic punching machine characterized by being able to move up and down. 2. An automatic punching machine for moving a punch pin up and down by a motor, wherein a crank-shaped drive means can be connected to a rear end of a rotation shaft of the motor, and the punch pin is manually driven to rotate from the outside. An automatic punching machine characterized by being able to move up and down.