KR100705468B1 - A shredder for inserting paper having a function for controlling chip size - Google Patents

Abstract

The present invention relates to a document shredder having a chip size change function,

In the document shredder consisting of a case having an input opening, a shredder embedded in the case, and a control switch installed in the case, the shredder is a vertical cutting conveying means for conveying the paper inserted from the feeding opening in a vertical direction. and; Horizontal shredding means for cutting the paper cut longitudinally in the horizontal direction to form chips; Longitudinal driving means for driving the longitudinal cutting conveying means; Horizontal driving means for varying driving speed of the horizontal crushing means; It is characterized in that it comprises a discharge means for discharging the crushed chip, the paper is first cut in the longitudinal direction, and finally take a way to cut in the horizontal direction, but the size of the chip can be easily adjusted to the importance of the document Depending on the degree of fracture can be different.

Documents, shredders, transfers, confidentiality, bins

Description

Document shredder with chip size change function {A SHREDDER FOR INSERTING PAPER HAVING A FUNCTION FOR CONTROLLING CHIP SIZE}

1 is a perspective view showing the structure of a conventional document shredder.

2 is a perspective view showing the structure of a document shredder according to the present invention.

3 is a side sectional view showing the structure of a document shredder according to the present invention.

4 is an enlarged view illustrating main parts of FIG. 3.

5 is a perspective view of FIG. 4.

6 is an exploded perspective view of FIG. 5.

7 is a flowchart illustrating a process of shredding paper by the document shredder of the present invention.

※ Explanation of Major Components

10; Shredder

20; crusher

30; Rotary blade

40; Feed roller

47; cutter

50; Fixed blade

60; Horizontal bar

70; Input Guide

80; Picked up

I; Input means

M; Means of transport

C; Cutting means

delete

The present invention relates to a document shredder having a chip size changing function, and more particularly, to a document shredder having a chip size changing function capable of freely adjusting the size of a paper chip to be cut according to a confidentiality level.

It is common for national agencies, government offices, corporations, financial institutions, etc., which deal with documents requiring security maintenance, to shred documents and dispose of them in order to maintain security when disposing of documents.

The configuration of a general document shredder is shown in FIG. 1, which is briefly described as follows.

As shown, the conventional document shredder is a cutting screw 120 formed in the upper end of the case 100, the cutting screw is installed in the lower portion of the input hole 120 and the toothed blades are formed along the circumference of each of the two rotary shafts And a collection box 500 of a predetermined size installed under the cutting screw 200.

At this time, any one of the cutting screw 200 is connected to the drive motor 400 through a chain belt. Accordingly, when the driving motor 400 rotates, the cutting screw 200 rotates so that the inserted document is cut into small chips and finally collected in the collecting container 500.

Further, conventionally, there is no configuration for cutting while freely adjusting the size of the paper chip.

In addition, conventionally, there is no configuration for adjusting the gap between the cutting screw, so that when thick or multiple sheets of paper enter at once, an excessive force is applied to the power transmission device, causing a failure.

The present invention has been made to solve the above-mentioned problems, the object of the invention is to cut the paper first in the longitudinal direction and then to the final transverse direction while cutting the size of the chip can be easily adjusted according to the importance of the document To provide a document shredder that can do different things.

It is also an object of the present invention to provide a document shredder having a chip size changing function that can prevent paper jamming or stiffness by appropriately adjusting the distance between the rotary blade and the fixed blade.

In order to achieve the above object, a document shredder having a chip size changing function according to the present invention comprises a case in which an opening is formed, a crusher built in the case, and a control switch installed in the case.

The shredder,

Longitudinal cutting conveying means for conveying while cutting the paper inserted from the inlet in the longitudinal direction,

Horizontal shredding means for cutting the paper cut in the longitudinal direction in the horizontal direction to form a chip,

Longitudinal driving means for driving the longitudinal cutting conveying means;

Horizontal driving means for varying driving speed of the horizontal crushing means;

Discharge means for discharging shredded chips:

Since it is configured to include a feature to adjust the size of the chip.

Here, the longitudinal cutting conveying means is composed of a pair of upper and lower rollers consisting of a pressing roller and a feed roller, it is preferable that the cutter is formed on the outer periphery of the feed roller at predetermined intervals along its axial direction.

In addition, the compression roller is preferably made of a high elastic material such as rubber.

In addition, the horizontal shredding means is preferably composed of a fixed blade on which the paper is cut vertically, and a rotating blade that rotates while maintaining a predetermined distance from the fixed blade.

In addition, the case is preferably provided with a spacing adjusting screw connected to the fixed blade, it is possible to adjust the spacing with the rotary blade while the fixed blade is moved by the operation of the spacing adjusting screw.

In addition, the fixed blade is preferably formed with a groove for receiving the pressing roller on the surface adjacent to the feed roller.

The vertical drive means is a transfer motor installed in the feed roller, the horizontal drive means is a drive motor connected to the axis of the rotary blade, the transfer motor is rotated at constant speed, and the drive motor is to enable three-speed variable rotation of the chip It is desirable to adjust the size in three steps.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 to 6.

As shown, a document shredder having a chip size changing function according to an embodiment of the present invention is composed of a shredding device 10 in which a shredder 20 is built in a case 11 having an injection hole 12 formed at an upper end thereof. . In addition, a control switch 9 is installed at a suitable place (side view in the drawing) of the case 11, and a collection box 80 is formed at the lower part to freely receive or take out a collection bag or a collection box.

3 and 4, the shredder 20 has a horizontal bar 60 and a feeding guide 70 adjacent to the left and right sides between the left side plate 23 and the right side plate 23a. have. And, the horizontal bar 60 is provided with a space adjusting screw 61 is installed up and down to extend to the lower fixed blade 50, the lower side of the horizontal bar 60 pull spring (not shown, to the space adjusting screw Hidden) is provided up to the fixed blade 50.

In addition, a fixed blade 50 which is adjusted up and down in contact with the pull spring and the gap adjusting screw 61 is installed on the fixed blade base 52, the fixed blade 50 is adjacent to the feed roller 40 The groove 55 is formed in the surface, and the compression roller 51 mentioned later is incorporated.

The lower edge of the fixed blade 50 is installed in close proximity to the rotary blade 30, but the rotary blade shaft 31 protrudes outward of the right side plate (23a). In the drawing, the rotary blade 30 is a spiral shaped cutter, but may be formed as a flat cutter having the same shape in the axial direction.

On the other hand, the press roller 51 and the feed roller 40 are respectively abutted on the outer surface with the paper inserted in between, and the roller shaft 41 protrudes outward of the right side plate 23a. Furthermore, cutters 47 are formed on the outer circumference of the feed roller 40 at predetermined intervals along the axial direction thereof so as to cut the paper P while feeding with the pressing roller 51 while feeding it in the longitudinal direction. do. As a result, the pressing roller 51 and the feed roller 40 constitute a longitudinal cutting feed means.

On the other hand, the drive motor 21 is fixed to the rear surface of the right side plate 23a by the fixing screw 21a. The drive shaft 22, which is the output shaft of the drive motor 21, is provided with a motor gear 24 on the outside of the right side plate 23a, and the chain 25 is connected through the roller gear 26. The drive motor 21 is configured to adjust the rotational speed.

The roller gear 26 is coupled to the rotary blade shaft 31 provided on the outer side of the right side plate (23a), the rotational power of the drive shaft 22 that rotates by the operation of the drive motor 21 is a chain 25 Rotate the rotary blade 30 through the).

As described above, the rotary blade 30 is rotated close to the tip of the fixed blade 50 and the fixed blade 50 is rotated by the adjustment of the adjustment screw 61 installed on the horizontal bar (60). It is possible to adjust the interval with the blade (30).

On the other hand, the inner side of the fixed blade 50, the compression roller 51 made of elastic rubber or plastic is freely rotated, the pressing roller 51, the feed roller 40 is formed with a cutter 47 ) Is installed in close contact, the roller shaft 41 of the transfer roller 40 is connected to the transfer motor 42 installed on the outside of the right side plate (23a). The transfer motor 42 is able to be adjusted in the rotational speed by a separate controller (not shown).

In the vicinity of the horizontal bar 60, an input passage 71 and an input guide 70 for guiding the introduced paper between the feed roller 40 and the pressing roller 51 are formed.

In addition, the discharge guide 82 is installed on the lower side of the rotary blade 30 so that the paper chip is guided well in the collection box (80). In the figure, the discharge guide 82 is in the form of a kind of reverse funnel.

In addition, by installing the small wheels 90 on the bottom of the collection box 80 can be convenient to move.

Hereinafter, with reference to the drawings will be described in detail the operation and effect of the present invention having the configuration as described above.

First, choose one of three levels depending on the level of confidentiality of the document. In this way, the rotational speeds of the feed motor 42 and the drive motor 21 are set according to the level. This is done by operating the control switch 9 provided on the surface of the case 9.

Next, when the paper P is inserted through the inlet 12, the input state of the paper is sensed by a sensor (not shown) installed in the inlet 12, and power is applied to the driving motor 21 to operate the drive. The drive shaft 22 formed in the motor 21 is rotated.

In this way, the drive shaft 22 and the motor cogwheel 24 connected thereto by receiving power transmit the rotational force to the roller cogwheel 26 through the chain 25.

As described above, the roller cogwheel 26 having received the rotational force is connected to the rotary blade shaft 31 of the rotary blade 30 to finally rotate the rotary blade 30.

The rotational speed of the drive motor 21 may be selected to be adjustable.

At this time, since a predetermined power is also supplied to the feed motor 42 to operate at the same time, the feed roller 40 connected to the rotating shaft rotates. The rotational speed of the transfer motor 42 may be selected to be adjustable.

Referring to the operation of the crusher 20 is operated in this way as follows.

4 is a longitudinal cross-sectional view showing in detail the operating state of the present invention, when the waste paper is inserted into the inlet 12 formed on the upper end of the case 11, the upper end of the input means (I) formed of the input guide 70 Since this is a wide open state it will guide the paper to be introduced smoothly.

In this way, the paper introduced from the top into the input means is moved to the longitudinal cutting conveying means (M) through the input passage (71).

The longitudinal cutting conveying means (M) is driven by a feed motor 42 that maintains a predetermined rotational speed, the rotational speed of the conveying motor 42 is to maintain a constant speed, the paper is cut in the longitudinal direction and conveyed Dispose of several branches of paper along the direction.

Then, the paper cut in the longitudinal direction by entering the longitudinal cutting conveying means (M) is supplied to the horizontal shredding means (C).

Specifically, as the rotary blade 30 rotates, the cutting blade 32 is repeatedly passed through the fixed blade 50 so that the paper is fed by the longitudinal cutting transfer means M and passes over the fixed blade 50. It is cut continuously. That is, after cutting the paper placed on the fixed blade 50 of the spiral cutting blade 32 of the rotating rotary blade 30, the vertical cutting conveying means (M) while the next cutting blade 32 is returned Since the paper is continuously supplied, it is cut into paper chips of a predetermined size. A driving motor is connected to the rotary blade 30, and the rotational speed of the driving motor can be changed, so that an appropriate rotational speed can be selected.

That is, the feed rate of the vertical cutting feed means (M) is to maintain a constant speed and to change the rotational speed of the cutting blade 32 to adjust the chip length (size) of the paper.

7 shows the action of adjusting the size of the chip in accordance with the importance of the document by adjusting the rotational speed of the drive motor 21.

As shown, the speed of the transfer motor 42 is maintained at a constant speed, and only the rotational speed of the rotary blade 30 is changed to three or more steps (high, medium, low), and the size of the paper chip according to the importance of the document. Can be different.

According to the present invention having the above-described configuration, the paper is first cut in the longitudinal direction and then finally transversely cut, but since the size of the chip can be easily adjusted, the paper can be divided and shredded according to the importance of the document.

In addition, according to the present invention it is possible to prevent the phenomenon that the paper is caught or stiff by adjusting the distance between the rotary blade and the fixed blade.

Claims (7)

In the document shredder which consists of the case 11 in which the inlet 12 was formed, the crusher 20 integrated in the case 11, and the control switch 9 provided in the case 11, The shredder 20 is a vertical cutting conveying means (M) for conveying while cutting the paper inserted from the inlet 12 in the longitudinal direction, and the horizontal to cut the paper cut in the longitudinal direction in the horizontal direction to form a chip Crushing means (C), the vertical drive means for driving the longitudinal cutting conveying means (M), the horizontal drive means for driving the horizontal crushing means, and the discharge means of the crushed chip, The vertical cutting conveying means (M) is provided with the press roller 51 and the conveying roller 40 abutting each other in front and rear with the paper to be interposed therebetween, and the axis of the conveying roller 40 at its outer circumference. Cutters 47 are formed at predetermined intervals along the direction, The horizontal crushing means (C) is a fixed blade 50 is formed with a groove 55 for accommodating the pressing roller 51 on the surface adjacent to the feed roller 40, the lower portion of the fixed blade 50 It consists of a rotary blade 30 that rotates while maintaining a predetermined interval with the tip, The vertical drive means is made of a transfer motor 42 connected to the transfer roller 40 to drive, The horizontal driving means is made of a drive motor 21 connected to the shaft of the rotary blade 30 to drive a variable rotational speed, The discharge means is made of a discharge guide 82 which is installed on the lower side of the rotary blade 30 to guide the broken chip, The horizontal bar 60 is fixed to the inside of the case 11 and the horizontal bar 60 is installed on the horizontal bar 60 in the vertical direction further comprises a gap adjusting screw 61 connected to the fixed blade 50 is configured to include Document shredder having a chip size change function, characterized in that. delete The method of claim 1, The pressing roller 51 is a document shredder having a chip size changing function, characterized in that made of rubber. delete delete delete delete

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