JPS5821674Y2 - Electric cutting machine for bookbinding - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric cutting machine for bookbinding that is used to cut off the edges of sheets to align the edges of the sheets before or after bookbinding.

Conventional cutting machines of this type push the paper forward from the front of the cutter, pass it under the cutter, set the trailing edge of the paper at a fixed position below the cutter, and then perform the required cutting operation. After cutting, the paper was passed under the cutter again and pulled out toward the front.

However, according to this method, the operator has to pass his or her hand under the cutter to set and pull out the paper, which is not very desirable since it gives the operator a sense of psychological fear.

In order to solve this problem, a configuration has been separately proposed in which, when the surface facing the operator of a table that supports paper on its surface is the front side, a cutter is arranged along the side edge direction with respect to the front side.

According to this, since the paper can be set directly behind the cutter, the operator does not have to pass his hand under the cutter when setting the paper, which is extremely convenient.

The purpose of this invention is to enable the edge end to be cut to be easily set at the cutting position when paper is set directly behind the cutter as described above.

In order to achieve the above object, a stopper is provided at the cutting position with which the edge of the paper pushed in from the rear of the cutter comes into contact.

However, since the edge to be cut is usually 2 to 3 mm, the stopper must be installed at a position as close as possible to the cutter.

However, if the cutter is too close to the cutter, the operator must extend his hand below the cutter to brush off the chips after cutting, as in the past.

This work may also give the worker a sense of fear.

Therefore, in this invention, a stopper installed for the above-mentioned purpose is moved in conjunction with the cutter during cutting to allow the chips to fall naturally.

This invention will be explained based on the drawings. A switch 3 for controlling the elevation and descent of the cutter is installed on the front 2 of the table 1, and is operated by the hand of an operator facing the front.

Guides 5 and 6 used for setting paper are provided on the surface 4 of the table 1, and the guide 5 is fixed.
The guide 6 is movable in directions toward and away from the cutting position.

A swarf box 8 is arranged opposite to the side surface 7 of the table 1,
The chips after cutting naturally slide down into the chip box 8 and are stored therein.

A cover 10 covering the cutter and the like is arranged along the side edge of the table 1.

FIG. 2 shows the state with this cover 10 removed.

The cutter 11, like the cover 10, is located along the side edge of the table 1.

It is arranged between a pair of frames 12.13 of inverted circular shape.

The cutter 11 is held by a cutter holder 14, and is raised or lowered together by a motor (not shown) driven by the switch 3.

When the cutter 11 descends during cutting, it descends until it touches the surface 4 of the table 1 and cuts the paper.

A blade holder made of synthetic resin or the like is provided with a rod 15 at a position in contact with the blade edge of the cutter 11 to prevent the blade edge from being damaged.

A stopper 16 is arranged on the side edge of the table 1 close to the cutter 11.

The lower surface 17 of this stopper 16 is located below the surface 4 of the table 1, and a shaft 19 (which is supported by the table 1) is provided on a support piece 18 projecting downward from both side surfaces.

) is said to be able to rotate freely around the center.

L-shaped drive pieces 20 are arranged facing both sides of the stopper 16.

This is normally lifted up to a fixed position by a spring 21.

A contact tool 23 such as a roller fixed to the tip of a shaft 22 established therein is in contact with the lower surface of the cutter holder 14.

A receiver 24 like a roller is installed at the lower end of the drive piece 20, and the back side edge of the stopper 16 abuts against the receiver 24, so that the stopper 16 normally rotates at an angle. is being prevented.

A sliding table 25 for chips is disposed below the stopper 16, and the chips sliding down the table 25 are stored in the chip box 8 as they are.

The shaft 22 is slidable along a groove 26 formed in the frame 13, thereby guiding the movement of the drive piece 20 up and down.

A paper pressing plate 27 is movable up and down with respect to the cover 10, and is used to press down and fix the paper at the cutting position from above.

In the above configuration, an operator standing facing the front surface 2 of the table 1 places a sheet of paper on the surface 4 of the table 1.

In this case, the operator does not need to extend his hand below the cutter 11.

As shown in FIGS. 2 and 3, the stopper 16 is normally in an upright position, so the worker cannot get his or her hand on the surface of the table 1 from the side 7 of the table 1.
Further, the cutter 11, especially its cutting edge, is also shielded by the stopper 16 and cannot be viewed directly.

As a result, the danger of the operator when setting paper can be avoided, and fear can be dispelled.

A sheet of paper placed on the surface 4 of the table 1 is pushed into a position where its right end surface is brought into contact with the surface of the stopper 16.

This pushing is possible by moving the guide 6.

In this way, the paper is set at the cutting position.

In this case, since the lower surface IT of the stopper 16 is located below the front surface 4, the paper will not be pushed in by passing under the lower surface 17.

Note that at this time, the upper surface of the paper is in contact with the guide 5.

Here, the paper pressing plate 27 is lowered to hold down the paper, and then the switch 3 is operated to lower the cutter 11.

This lowering causes the edge of the paper between the lowered position of the cutting edge of the cutter 11 and the surface of the stopper 16 to be cut.

Here, when the cutter 11 descends, the holder 14
Since both are descending as one, the contact tool 2 is lowered in this process.
3 is pushed down and the drive piece 20 is moved by the spring 21.
is pushed down against the elasticity of

As a result, the tool 24 of the receiver gradually descends, and the stopper 16, which had been prevented from falling down by the tool 24, rotates about the shaft 19 so that the cutter 11 reaches the surface. 4, it collapses as shown in Figure 4.

Chips generated by cutting are removed from the bottom surface 1T of the stopper 16.
falls downward through the gap between the surface 4 and the slide 25.
It slides down and enters the chip box 8.

After cutting, when the cutter 11 is raised by operating the switch 3, the drive piece 20 is lifted up by the spring 21, and in this process, the receiver 24 lifts up the back of the stopper 16, so the stopper 16 is gradually lifted. I stand up.

When the cutter 11 returns to its normal upper position, the stopper 16 also returns to its initial state.

The paper after cutting is pulled out from the front side 4 by the operator's hand in the opposite direction from when it was set.

With the above steps, the required cutting is completed.

As detailed above, according to this invention, the stopper placed opposite to the side of the cutter is used to set the paper at the cutting position, so there is no danger of damage to the operator. It is possible to set the stopper, and even if the stopper is placed close to the cutter like this,
Since the cutter falls down in conjunction with the lowering of the cutter, the chips produced by cutting fall naturally, so there is no need to sweep away the chips, and there is no danger associated with this work.

The stopper can also be used to hide the cutter from view from the outside, and has the effect of dispelling the psychological fear of the cutting machine itself.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of this invention, FIG. 2 is a partially cutaway perspective view of the main part, and FIGS. 3 and 4 are explanatory views of the operation. 1...Table, 2...Front, 11.
...Cutter 16...Stopper.

Claims (1)

[Scope of utility model registration request] of the table on which the paper to be cut is placed.
A cutter that can be raised and lowered is placed along the side edge of the front facing the operator, and the cutter is located close to the cutter and has a lower surface below the surface so that the edge of the paper comes into contact with the cutter. An electric cutting machine for bookbinding, in which a stopper for regulating the cutting position is arranged, and the stopper can be tilted in a direction opposite to the cutter about an axis located below the surface in conjunction with the lowering of the cutter.