KR102392514B1 - Paper shredder and control method thereof - Google Patents

Abstract

The present invention relates to a paper shredder and a controlling method thereof. The paper shredder comprises: a main body forming an appearance; a paper tray installed in the main body and loaded with papers to be shredded; a paper feeding unit dividing and simultaneously feeding a plurality of papers loaded in the paper tray; a shredding unit cutting papers fed from the paper feeding unit into preset horizontal and vertical lengths; and a collecting container provided at the bottom of the shredding unit and collecting shredded objects. With the above configuration, a plurality of papers to be shredded are loaded on a paper tray, and by driving the paper feeding unit, loaded papers can be divided into multiple sheets and sequentially fed to the shredding unit so as to be shredded.

Description

Document shredder and control method thereof

The present invention relates to a document shredder and a method for controlling the same, and more particularly, to a document shredder for cutting a document into pieces and a method for controlling the same.

In general, a document shredder cuts security documents or confidential documents, corporate documents in which personal information is written, receipts of financial institutions, etc.

In addition, document shredders are provided in offices, banks, etc. of each institution to prevent and protect the leakage of personal information written on confidential documents of state institutions, government offices, and companies, and statements issued through ATMs by financial institutions.

Such a document shredder shreds documents by people simply inserting paper into the slot, and the shredded documents make the contents invisible.

To this end, the document shredder includes a motor and a cutter for the document shredder, and the cutter for the document shredder rotates by the rotational force of the motor to finely shred the input document.

In this way, the document shredder implements the security of blocking the leakage of information regardless of the type and size of the customer by shredding the document.

For example, the following Patent Documents 1 and 2 disclose techniques for improving the security of a document shredder.

In Patent Document 1, a configuration is described in which a user recognition device is provided at the top of the case and a document recognition device is provided at the document input port to identify the discarders and the discarded documents, thereby managing the discarders and the discarded documents at the time of disposal of the documents. has been

In Patent Document 2, an authentication means for generating a signal for authentication with an illuminance sensor and a take-out means for an object to bypass the cutter under set conditions are provided to increase security in the process of shredding and discarding documents, and A configuration for preventing an accident caused by an accident is described.

On the other hand, the document shredder according to the prior art has a problem of causing inconvenience in use as the user has to manually put the documents to be shredded through the input hole.

In order to solve such a problem, a technology for automatically inserting a document to be shredded by driving a paper feed roller and shredding has been developed.

For example, Patent Document 3 below describes a configuration in which a shredding request document loaded on a paper tray is transferred to a shredding device by applying a paper feed roller device to a document shredder and shredded.

However, as in Patent Document 3, a document shredder to which a paper feed roller is applied puts a document to be shredded into pieces and shreds, so the time for shredding the document is unnecessarily increased and workability is deteriorated.

Republic of Korea Patent Registration No. 10-0923064 (published on October 22, 2009) Republic of Korea Patent Registration No. 10-1656073 (Announced on September 9, 2016) Republic of Korea Patent Registration No. 10-1873043 (published on July 2, 2018)

An object of the present invention is to solve the above problems, and to provide a document shredder capable of automatically feeding and shredding a document to be shred, and a method for controlling the same.

Another object of the present invention is to provide a document shredder capable of shredding a plurality of documents loaded on a paper tray by inserting them at the same time, and a method for controlling the same.

In order to achieve the above object, the document shredder according to the present invention distributes a main body forming an external shape, a paper tray installed in the main body and loaded with documents to be shredded, and a plurality of documents loaded on the paper tray, It characterized in that it includes a paper feeding unit for feeding simultaneously, a shredder for cutting the document fed from the paper feeding unit to a preset horizontal and vertical length, and a collection container provided under the shredded portion and for collecting the shredded shreds.

In addition, in order to achieve the above object, the control method of the document shredder according to the present invention comprises the steps of (a) loading a plurality of documents inside the paper tray, (b) driving the distribution member of the paper feeding unit to drive the paper tray distributing the documents stacked in a plurality of sheets one by one, (c) driving the paper feed roller of the paper feeding unit to feed the documents distributed in multiple sheets to the shreds, and (d) rotating a plurality of pairs of cutters provided at the shreds and shredding the document to be fed.

As described above, according to the document shredder and the control method thereof according to the present invention, a plurality of documents to be shredded are loaded on the paper tray, and the loaded documents are sequentially fed to the shredder by driving the paper feeding unit to shred the document. is obtained

And, according to the present invention, there is an effect that the documents loaded on the paper tray can be distributed in a plurality of sheets, and the distributed documents can be simultaneously supplied to the shredder and shredded.

Accordingly, according to the present invention, it is possible to shorten the time required for the document shredding operation and improve the workability of the shredding operation by improving the operation speed.

1 is a perspective view of a document shredder according to a preferred embodiment of the present invention;
2 is a block diagram of the document shredder shown in FIG. 1;
3 is a detailed configuration diagram of the paper tray and the paper feeding unit shown in FIG. 1;
4 is a flowchart illustrating step-by-step a method for controlling a document shredder according to a preferred embodiment of the present invention.

Hereinafter, a document shredder and a control method thereof according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a document shredder according to a preferred embodiment of the present invention, and FIG. 2 is a block diagram of the document shredder shown in FIG. 1 .

Hereinafter, terms indicating a direction such as 'left', 'right', 'front', 'rear', 'up' and 'downward' are defined as indicating each direction based on the state shown in each figure. do.

As shown in FIGS. 1 and 2, the document shredder 10 according to a preferred embodiment of the present invention is installed inside the main body 20 and the main body 20 to form an outer shape and cuts documents in preset horizontal and vertical directions. It includes a shredded section 30 cut to length, a collection container 40 provided under the shredded section 30 to collect shredded shreds, and a controller 50 for controlling driving of each device.

And the document shredder 10 according to a preferred embodiment of the present invention includes a paper tray 60 on which a document to be shredded is loaded, and a paper feeder 70 for distributing a plurality of documents loaded on the paper tray 60 and simultaneously feeding them. include more

In addition, the document shredder 10 according to the preferred embodiment of the present invention may further include an input unit 80 for receiving a user's operation command and a power supply unit 90 for supplying power to each device.

The main body 20 is formed in a substantially hexahedral shape, and an inlet 21 may be further formed at the upper end of the main body 20 to manually feed and cut a document.

The collection container 40 may be formed in a hexahedral shape with an open upper surface so as to collect the cutting debris that is cut and dropped at the shredded end portion 30 .

The shredded end portion 30 may include a plurality of pairs of cutters 35 continuously assembled to cross each other at first and second rotational shafts, and first and second rotational shafts arranged in parallel with each other. Each of the first and second rotation shafts may have a polygonal cross-section, for example, a hexagonal shape.

And the shredded end portion 30 is a driving motor 31 generating a driving force, a rotation gear 32 installed at one end of the first rotation shaft and receiving a driving force generated from the driving motor 31 to perform rotational motion, the other end of the first rotation shaft It may include a driven gear 34 installed at one end of the second rotating shaft to mesh with the driving gear 33 and the driving gear 33 installed in the.

The driving motor 31 and the rotating gear 32 may be connected by a connecting means such as a belt or a chain or may be connected through a gear, and the driving motor 31 may be a DC motor, a brushless motor, or the like. It is sufficient as long as the rotation speed of the can be controlled, and is not particularly limited.

Here, as the first and second rotational shafts are formed in the same cross-sectional shape, the configuration of the cutter 35 coupled to the first and second rotational shafts is the same.

The cutter 35 is formed in a substantially disk shape, and a coupling hole coupled to the first or second rotation shaft is formed in the center of the cutter 35 , and the outer peripheral surface of the cutter 35 has teeth so as to cut a document. A plurality of cutting portions formed in a shape may be provided.

Next, the configuration of the paper tray and the paper feed unit will be described in detail with reference to FIGS. 1 to 3 .

FIG. 3 is a detailed configuration diagram of the paper tray and the paper feeding unit shown in FIG. 1 .

As shown in FIGS. 1 to 3 , the paper tray 60 may be formed in a substantially hexahedral shape with an open upper surface so that a loading space in which the document D is loaded is provided.

The paper tray 60 is formed in a hexahedral shape having a substantially rectangular cross-section when viewed from the top so as to correspond to the shape of the document D, and a cover 61 is detachably coupled to the upper portion of the paper tray 60 . can be Of course, the cover 61 is once, for example, the front end is shaft-coupled to the upper end of the front wall of the feed tray 60 as seen in FIG.

The paper feeder 60 may be provided on one side of the main body 20 of the document shredder 10 .

For example, the paper feed tray 60 is preferably provided on the upper rear side of the main body 20 so that the user can easily load the document (D).

A feed port 62 is provided on the front side of the paper feed tray 60 to deliver to the shredded end 30 fed by the paper feed unit 70 , and a shredded end portion 30 is provided between the paper feed port 62 and the shredded end 30 . ) may be provided with a paper feed guide 63 for guiding the document (D) to be fed between the plurality of pairs of cutters 35 provided at the shredded end (30).

The paper feeding guide 63 is formed in a substantially plate shape, and may be installed horizontally or inclined to correspond to a path through which the document D is fed, or may be installed in a curved shape such as an arc shape.

In this way, a loading space in which a plurality of documents (D) is loaded is provided in the inside of the paper tray 60 . Here, a plurality of documents (D) are loaded on the lower portion of the loading space, and a support plate (64) for supporting the loaded documents (D) may be installed.

In addition, an elastic member 65 that provides an elastic force to the support plate 64 may be provided under the support plate 64 .

The elastic member 65 is formed in various shapes, such as a plate-shaped spring, a bar-shaped spring, and a coil-type spring, and the topmost document among the documents (D) loaded in the paper tray 60 is always a paper-feeding unit 70, which will be described below. An elastic force may be provided to the support plate 64 so as to be in contact with the paper feed roller 72 of the .

Meanwhile, the paper tray 60 may be detachably installed on the main body 20 .

For example, a mounting space in which the paper tray 60 is mounted is formed in the upper portion of the main body 20 , and a plurality of documents D are loaded inside the paper tray 60 in a state detached from the main body 20 . can be

In addition, the tray 60 may be mounted in a sliding manner through rails (not shown) installed on both sides of the mounting space.

The paper-feeding unit 70 is a distribution member 71 for distributing a plurality of documents D loaded on the paper tray 60, and a plurality of documents D distributed by the distribution member 71 through the paper-feeding port 62 It may include a paper feed roller 72 and a distribution member 71 and a paper feed motor 73 for generating a driving force to drive the paper feed roller 72 which are simultaneously supplied to the shredded end 30 through the paper feed motor 73 .

The distribution member 71 is rotatably installed on the rear end side of the paper tray 60, and a plurality of documents (D) loaded inside the paper tray 60 by a rotation operation, for example, 5 to 10 It functions to distribute sheets by sheet.

To this end, the distribution member 71 is formed in a substantially roller shape, and on the outer surface of the distribution member 71, a plurality of documents stacked on the top of the plurality of documents D loaded on the paper tray 60 are loaded onto the paper feed roller ( 72), a plurality of protrusions 711 may be formed at preset angular intervals so as to move by pushing to the side.

To this end, the distribution member 71 may be formed in a gear shape in which a plurality of teeth are formed on the outer circumferential surface when viewed from the side. Here, each protrusion 711 may correspond to the tooth of the gear, and may be formed to extend long in the longitudinal direction of the distribution member 71 .

Here, the height of the protrusion 711 protruding from the outer surface of the distribution member 71 may be set according to the number of documents D to be distributed. That is, when the height of the protrusion 711 increases, the number of distributed documents D increases, and when the height of the protrusion 711 decreases, the number of distributed documents D decreases.

The distribution member 71 configured as described above distributes the plurality of documents D stacked on the top among the plurality of stacked documents D and moves them toward the paper feed roller 72 .

The paper feed roller 72 is rotatably installed on the front end side of the paper feed tray 60, and the plurality of documents D distributed by the distribution member 71 by the rotation operation is passed through the paper feed port 61 to the shredded end. It functions to supply to (30).

These paper feed rollers 72 are installed to be in contact with the uppermost surface of the document D loaded in the paper feed tray 60, and may be provided in one or a plurality as needed.

Here, various patterns such as a plurality of slits, lattice shapes, and wavy shapes may be formed on the outer surface of the paper feed roller 72 to increase the frictional force with the document so that the document D can be smoothly fed to the shredded end 30 side. can

Of course, the present invention is not necessarily limited thereto, and a friction layer using a material capable of increasing friction, such as rubber or synthetic resin, on the outer surface of the paper feeding roller 72 may be formed in various ways such as coating or attaching method. there is.

So, the paper feed roller 72 simultaneously supplies the document distributed in a plurality of sheets by the distribution member 71 to the shredded end 30 through the paper feed port 62, and the shredded end 30 is Multiple fed documents can be shredded at the same time.

As described above, according to the present invention, a plurality of documents to be shredded may be loaded on a paper tray, and the loaded documents may be sequentially fed to the shredder by driving the paper feeding unit to be shredded.

And, according to the present invention, a plurality of documents loaded on the paper tray can be distributed, and the distributed documents can be simultaneously supplied to the shredder and shredded.

Accordingly, the present invention can reduce the time required for the document shredding operation and improve the workability of the shredding operation by improving the operation speed.

Next, a method for controlling a document shredder according to a preferred embodiment of the present invention will be described in detail with reference to FIG. 4 .

4 is a flowchart illustrating step-by-step a method for controlling a document shredder according to a preferred embodiment of the present invention.

When the power switch (not shown) provided in the input unit 80 is turned on in step S10 of FIG. 4 , the power supply unit 90 receives external commercial power and applies it to each device provided in the document shredder 10 .

At this time, the control unit 50 executes the driving program stored in the storage unit (not shown) to initialize each device, and prepares for the door shredding operation.

In step S12, a plurality of documents D to be shredded from the user in the state in which the cover 61 is opened is put in the paper tray 60 and loaded.

In step S14 , when the shredder start command is input through the input unit 80 or the initial driving operation is completed, the control unit 50 generates a control signal to drive the paper feeding unit 70 and the shredder unit 30 .

So, in step S16, the paper feeding motor 73 provided in the paper feeding unit 70 is driven according to the control signal of the control unit 50, and the distribution member 71 and the paper feeding roller 72 are driven by the driving force generated by the paper feeding motor 73, respectively. rotated by

In this case, the distribution member 71 and the paper feeding roller 72 may be driven by receiving the driving force of the paper feeding motor 73 through a gear, a pulley, a belt, or the like, respectively.

Alternatively, the distribution member 71 and the paper feeding roller 72 may be connected to each other by a gear or a belt, and may be sequentially driven by receiving the driving force of the paper feeding motor 73 through either one.

As described above, when the distribution member 71 and the paper feed roller 72 are driven, the plurality of documents (D) stacked on the top among the plurality of documents (D) stacked on the paper tray (60) are transferred by the distribution member (71). It is distributed and moves to the feed port 62 side. Then, the distributed plurality of documents D are fed to the shredder 30 through the paper feed port 62 by the paper feed roller 72 (S18).

At this time, the document D fed to the shredded portion 30 is fed between a plurality of pairs of cutters provided at the shredded portion by the feeding guide 63 .

And the document (D) loaded inside the loading table (60) is continuously pressed upward by the elastic force of the elastic member (65) installed under the support plate (64), and the distribution member (71) and the paper feeding roller (72) and can remain in contact.

In step S20 , the plurality of pairs of cutters 35 rotate in opposite directions, and the plurality of documents D are inserted between each cutting unit provided on the outer peripheral surface of each cutter 35 while moving downward. In this way, the document inserted between the respective cutting units is shredded to a width corresponding to the horizontal width of each cutter 35 , and again shredded to a vertical length corresponding to the distance between the respective cutting units by the next cutting unit. Then, the shredded document scraps are discharged from the respective cutters 35 and fall downward to be collected in the collection container 40 .

In step S22, the control unit 50 checks whether the entire document (D) loaded on the loading table 60 is shredded based on a detection signal of a detection sensor (not shown) installed on the loading table 60, and the entire document Steps S16 to S22 are repeatedly performed until is shredded.

On the other hand, if the entire document D is shredded in step S22, the control unit 50 stops driving of each device and ends.

Through the process as described above, according to the present invention, a plurality of documents to be shredded can be loaded on a paper tray, and the loaded documents can be sequentially fed to the shredder by driving the paper feeding unit to be shredded.

And, according to the present invention, a plurality of documents loaded on the paper tray can be distributed, and the distributed documents can be simultaneously supplied to the shredder and shredded.

Accordingly, the present invention can reduce the time required for the document shredding operation and improve the workability of the shredding operation by improving the operation speed.

Although the invention made by the present inventors has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the present invention.

The present invention is applied to a document shredder that loads a plurality of documents to be shredded on a paper tray, drives the paper feeder, distributes the loaded documents into a plurality of sheets, and sequentially feeds them to the shredder to shred the document and its control method technology.

10: Document Shredder
20: body 21: inlet
30: sedan 31: drive motor
32: rotation gear 33: drive gear
34: driven gear 35: cutter
40: collection container
50: control unit
60: tray 61: cover
62: paper feed slot 63: paper feed guide
64: support plate 65: elastic member
70: paper feed unit
71: distribution member 711: protrusion
72: paper feed roller 73: paper feed motor
80: input unit 90: power supply unit

Claims (6)

body forming an appearance,
A paper tray installed in the main body and loaded with documents to be shredded;
a paper feeding unit that divides and simultaneously feeds a plurality of documents loaded on the paper tray;
a shredder for cutting the document fed from the paper feeder into preset horizontal and vertical lengths; and
and a collection container provided under the shredded portion and collecting the shredded shreds,
The paper feeding unit is a distribution member for distributing a plurality of documents stacked on the paper tray,
a paper feed roller for simultaneously supplying a plurality of sheets of documents distributed by the distribution member to the shreds; and
and a paper feed motor that generates a driving force to drive the distribution member and the paper feed roller,
The distribution member is rotatably installed on the rear end of the feed tray,
A plurality of protrusions are formed on the outer surface of the distribution member at preset angular intervals so as to move the plurality of documents stacked on the top among the plurality of documents loaded on the paper tray toward the paper feed roller,
A document shredder, characterized in that the height of the protrusion is set to correspond to the number of documents to be distributed. According to claim 1,
a control unit for controlling driving of each device provided in the document shredder;
an input unit for receiving a user's operation command; and
Further comprising a power supply for supplying power to each device,
The control unit is a document shredder, characterized in that when a shredding start command is input through the input unit or an initial driving operation is completed, the control unit drives the paper feeding unit and the shredder to feed and shred the loaded document. delete delete According to claim 1,
The paper tray is formed in a hexahedral shape with an open upper surface so that a loading space for loading documents is provided therein,
A cover is operably coupled to the upper surface of the feed tray to open and close,
A feeding port for feeding the documents loaded by the driving of the feeding unit to the shreds is formed on one surface of the feeding tray,
A plurality of documents are loaded in the loading space, and a support plate for supporting the loaded documents;
Document shredder, characterized in that provided with an elastic member that is installed under the support plate and provides an elastic force to the support plate so as to maintain the upper surface of the loaded documents in contact with the distribution member and the paper feed roller of the paper feeding unit. . In the control method of the document shredder according to any one of claims 1, 2 and 5,
(a) a step of loading a plurality of documents inside the paper tray;
(b) distributing a plurality of documents loaded on the paper tray by driving the distribution member of the paper feeding unit;
(c) driving the paper feeding roller of the paper feeding unit to feed the document divided into a plurality of sheets to the shredder; and
(d) rotating the plurality of pairs of cutters provided at the shredder to shred the document to be fed.

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