KR20040012319A - Perforation device for auto filing machine - Google Patents

Abstract

PURPOSE: A drilling device for an automatic binder is provided to prevent the damage of the binder by operating a drilling motor and a drill in a load reducing state when an overload sensor detects the overload of a lifting motor. CONSTITUTION: In a drilling device for an automatic binder, an overload sensor(S) is installed at a lifting motor(M2). And, the overload sensor detects the overload of the lifting motor, and is connected to a motor control unit(30). The motor control unit moves a drilling motor(M1) and a drill(5) up/down in a load reducing state when the overload sensor detects the overload of the lifting motor.

Description

Perforation device of automatic bookbinding machine {PERFORATION DEVICE FOR AUTO FILING MACHINE}

The present invention relates to a punching device of an automatic bookbinding machine that punches holes in a plurality of stacked pieces of printed matter or documents, and inserts a molding tube therein and binds them together. More specifically, a plurality of stacked pieces are drilled. The drill is operated while descending by the raising and lowering motor. However, when the device is overloaded according to the drilling operation, the drilling is carried out in a load saving state while the drill is repeatedly raised and lowered, thereby preventing damage to the apparatus and reducing the punching thickness of printed materials or documents. The present invention relates to a punching device of an automatic bookbinding machine that can be processed thickly and thus makes more wide use of bookbinding applications.

In general, a method of binding multiple pieces of printed matter or documents, etc., is mainly used by applying an adhesive on one side and binding them together, and a method of tying one piece by punching holes and connecting rings in the stacked pieces.

In the former case, since the plurality of pieces of paper are simply bundled by an adhesive, there is a problem that the pieces of paper are separated.

In the latter case, the paper piece is inserted into the ring so that the paper piece flows a lot, which makes it difficult to bundle firmly, which causes a problem that the hole of the sheet paper is torn and separated.

In order to solve this problem, as shown in FIG. 1, holes 2 'are drilled in a plurality of stacked pieces 2, and a tube 5 of resin material is inserted therein so that the upper and lower ends thereof are enlarged by thermal deformation. Bookbinding machines for binding the paper pieces (2) firmly together are known.

However, in the above bookbinding machine, the punching machine for drilling a hole in the stacked pieces is difficult to properly adjust the raising and lowering distance of the drill in accordance with the thickness of the stacked pieces in the process of punching the pieces to the lower position of the pieces. Since the drilling was not performed completely or the drill descended more than necessary, it had great inconvenience in working.

In addition, in order to drill the drill, an operation of supporting a plurality of pieces by a separate fastening means is required, which has a problem such as poor workability.

In order to solve this problem, the present applicant has applied for a utility model for effective drilling operation according to the thickness of the paper scrap in Utility Model Application No. 2000-4008.

It is installed on the shaft with a drilling motor and a pressing arm with a drill in the lower portion of the base plate, the drilling motor is raised and lowered by engaging the pitch gear gear installed on the shaft of the lifting gear installed on one side It operates, but on the shaft is provided with a compression spring to the lower portion of the punching motor, the pressing arm, the pressing arm, respectively, when the lifting arm of the punching motor is made to press and support a plurality of stacked pieces while the elevating operation.

At this time, a rubber plate is installed on the base plate to the lower position of the drill of the perforated motor, and the rubber plate is connected to the lower detection unit to detect the contact of the drill to control the lowering operation of the drill by the lifting motor, and the upper detection sensor It is provided to control the lifting operation of the drill by the lifting motor.

As the drilling machine of the drilling motor moves downward, the lower detection part detects that the laminated paper is completely drilled and contacts the rubber plate on the bottom, and the drilling motor is raised by the reverse rotation of the lifting motor. Even with the change in the amount (thickness) of the paper, the drilling of the paper was effective.

In addition, since the pressing arm lifts and lowers elastically in accordance with the lifting and lowering operation of the perforated motor, convenience is provided that separate clamps for fixing the stacked pieces are also excluded.

However, the above punching device has the following problems.

First, as the drill performs the drilling operation, as the blade becomes dull, the drilling workability gradually decreases, whereas the lifting motor lowers and operates the drill constantly, so that the drilling motor and the drilling motor for driving the drill There is a problem that the overload occurs in the motor.

Of course, the above can be overcome by frequently changing the drill blade to maintain a constant blade, which is very difficult in reality.

Such an overload causes the drill to be blacked and easily broken, and damage to the perforated motor, the lifting motor, and the gearbox is also damaged.

In addition, the conventional mill factory has a limitation of the drilling operation as described above, the fabric mill of the existing bookbinding machine is manufactured to bind only up to a sheet thickness of about 5cm. However, in reality, the thickness of the paper is required to be more than that, but the situation is not met.

The present invention was created to fundamentally solve all the problems of the prior art described above, and to prevent the damage of the drill or motor as much as possible in the drilling of a plurality of stacked pieces as well as perforation of printed matter or documents Since the thickness can be processed thicker, the purpose of the bookbinding is more widely utilized.

The object of the present invention is to detect the overload of the device by the sensor during the operation of drilling holes in the laminated stack by the lowering operation of the drill by the lifting motor, while the motor control unit repeats the drilled motor and the drill in the drilling position, up and down It is achieved by a drilling device which makes drilling work under load reduction.

1 is a process chart showing a bookbinding process by a bookbinding machine,

2 is a block diagram showing the main part of the present invention,

3 is an operating state diagram of FIG.

4 is a configuration diagram showing another embodiment of FIG.

* Description of the symbols for the main parts of the drawings *

2: fragment 5: drill

7: base plate 11: shaft

12: Pressing Arm 13: Rec Gear

14: pinion gear 21, 22: detector

30: motor control unit S: detection sensor

M1: drilling motor M2: lifting motor

Hereinafter, a preferred embodiment for achieving the above object of the present invention will be described in detail with reference to the accompanying drawings.

The fabric mill of the bookbinding machine of the present invention is schematically configured as shown in FIG. 2.

That is, the drilling motor M1 and the pressing arm 12 having the drill 5 above the base plate 7 are installed on the shafts 11 and 11 in a single shot, and the drilling motor M1 is on one side. Recreational gear (13) installed in the gear is engaged with the pitch gear (14) installed on the motor shaft of the elevating motor (M2) to move up and down,

By detecting the lower detection part 21 which detects the touch of the drill 5 on the said base board 7, and the upper detection part 22 which detects the rise of the said puncture motor M1 or the drill 5, In the automatic bookbinding machine which controls the operation of raising and lowering the lifting motor M2 and the rotating operation of the punching motor M1 in the motor control unit 30,

The elevating motor (M2) is provided with a detection sensor (S) for detecting the overcurrent of the elevating motor (M2) according to the overload during the lowering operation, connected to the motor control unit 30, the detection sensor (S) When the over-current motor M2 is detected by the motor control unit 30, the motor control unit 30 performs the drilling operation in the load saving state while repeatedly raising and lowering the drilling motor M1 and the drill 5 at the drilling position.

In addition, according to the present invention, the detection sensor S detects the falling speed according to the drilling operation of the drilling motor M1, the drill 5 or the recreation gear 13, and the falling speed is lowered below the set speed according to the overload. At the time, the motor control unit 30 may allow the drilling motor M1 and the drill 5 to be drilled in a load saving state while repeatedly raising and lowering at the drilling position.

Therefore, by detecting in some way the overload generated during the operation for the drilling operation, the drilling motor (M1) and the drill (5) to perform the drilling operation in the load saving state while repeating the rising and falling at the drilling position It turns out that it belongs to the scope of the present invention.

On the other hand, the present invention detects the rotational operation of the drill (5) rotates by the drilling motor (M1) and the motor control unit 30 when the rotational operation number of the drill (5) is lowered below the set rotational speed in accordance with the overload ), The drilling motor (M1) and the drill (5) can also be drilled in the load saving state while repeating the rising and falling in the drilling position.

Unexplained reference numeral 18 denotes a rubber plate provided to prevent damage upon contact of the drill, and 16 denotes a ball spring.

Next will be described the operation and action of the present invention configured as described above.

First, it is placed on the base plate 7 in a state where laminated pieces 2 such as printed matters or documents to be bound are stacked.

At this time, the portion to be bound of the stacked pieces 2 is placed so as to be located at the lower position of the drill drill (5).

When the switch is operated in such a state, the lifting and lowering motor M2 is driven by the motor control unit 30 together with the drilling motor M1 to rotate the drill 5, and the drilling motor M1. And drill 5 is to be lowered for drilling.

At this time, since the pinion gear 14 on the motor shaft of the elevating motor M2 lowers the gear gear 13 engaged therewith, the drill motor M1 and the drill 5 to which the rack gear 13 is fixed are mounted. It will be operated down.

As described above, the lowering operation of the punching motor M1 and the drill 5 causes the pressing arm 12 to be elastically pressurized and clamped by pressing the upper portion of the laminated sheet 2 first, and then together with the punching motor M1. As the drill 5 continuously descends, the hole 2 'is drilled in the paper piece 2.

As such, when the blade of the drill 5 is blunted during use, the drilling efficiency is gradually lowered, and the device is overloaded.

This may vary depending on the thickness or material of the blade as well as the blade of the drill (5), while the drilling operation by the drill (5) is not made efficiently, while the lifting motor (M2) drill (5) Since the pressurized operation constantly, the overload is generated in the perforated motor (M1), the drill (5) and the lifting motor (M2).

At this time, if an overcurrent occurs in the elevating motor M2 according to the overload, the detection sensor S detects this, so that the motor control unit 30 performs the drilling operation by continuously lowering the elevating motor M2. Rather, the drill 5 is drilled while reducing the load by the operation of punching little by little repeatedly by repeatedly moving up and down at the drilling position.

Therefore, the drilling operation is performed in a state in which the overload of the drilling motor M1, the drill 5, and the lifting motor M2 is reduced, thereby preventing damage to the device, as well as processing the drilling portion smoothly, as well as drilling depth. It can be processed deeply.

In this way, the lower detection sensor 21 detects that the hole 2 'is touched to the lower end of the piece 2 on which the drill 5 of the drilling motor M1 is stacked, and the lower rubber plate 18 is touched. The motor control unit 30 is to reverse the operation of the lifting motor (M2) to raise the drilling motor (M1) and the drill (5) to complete the drilling operation.

On the other hand, the present invention described above is to perform the drilling operation by the method of reducing the load of the device in the drilling process as described above, to overcome the limitation that was bound to bound by limiting the punching thickness of the conventional paper to within 5cm thickness more than 10cm The binding of the paper can also be achieved by drilling.

In addition, according to the present invention, the detection sensor S detects the falling speed according to the drilling operation of the drilling motor M1, the drill 5 or the recreation gear 13, and the falling speed is lowered below the set speed according to the overload. At the time, the motor control unit 30 can perform the drilling operation in the same manner as in the above-described embodiment by drilling the load motor (M1) and the drill (5) in the load saving state while repeatedly moving up and down at the drilling position.

As described in detail above, the present invention detects an overload of a drill, a punching motor, a lifting motor, and drills a load-saving state in drilling a plurality of stacked pieces, thereby preventing damage to the device, as well as printing or documents. It is effective to perforate, and moreover, the perforation thickness can be thickened, so that the use of the bookbinding application can be more widely utilized.

Claims (2)

A drilling motor M1 having a drill 5 and a pressing arm 12 are installed on the shafts 11 and 11 at the upper portion of the base plate 7, and the drilling motor M1 is installed at one side. The regulating gear 13 is engaged with the pitch-gear gear 14 installed on the motor shaft of the elevating motor M2, and the elevating operation is performed. By detecting the lower detection part 21 which detects the touch of the drill 5 on the said base board 7, and the upper detection part 22 which detects the rise of the said puncture motor M1 or the drill 5, In the automatic bookbinding machine which controls the operation of raising and lowering the lifting motor M2 and the rotating operation of the punching motor M1 in the motor control unit 30, The elevating motor (M2) is provided with a detection sensor (S) for detecting the overcurrent of the elevating motor (M2) according to the overload during the lowering operation, connected to the motor control unit 30, the detection sensor (S) The motor control unit 30 when the over-current motor of the lifting motor (M2) is detected by the lifting motor (M1) and drill (5) at the punctured position to repeat the operation, characterized in that it is made to puncture operation in the load saving state Punching device of automatic bookbinding machine. The method of claim 1, The detection sensor (S) detects the falling speed according to the drilling operation of the drilling motor (M1), drill (5) or the recreation gear 13, and the motor control unit ( 30) The punching device of the automatic bookbinding machine, characterized in that the punching motor (M1) and the drill (5) is made to drill in a load saving state while repeating the ascending and descending at the drilling position.