WO2019056712A1

WO2019056712A1 - Automatic paper feeding method for paper shredder, and paper shredder with improved automatic paper feeding device

Info

Publication number: WO2019056712A1
Application number: PCT/CN2018/077971
Authority: WO
Inventors: 徐宁; 李钦灿
Original assignee: 徐宁
Priority date: 2017-09-21
Filing date: 2018-03-05
Publication date: 2019-03-28

Abstract

An automatic paper feeding method for a paper shredder, the paper feeding method comprising a paper placing step, a paper pressing step, an automatic paper rolling step, an automatic continuous paper feeding step and a paper shredding step, such that pieces of paper to be shredded (1) entering an automatic paper feeding passage (5) are partially overlapped. A paper placing mechanism and the automatic paper feeding passage (5) of the paper shredder are located on two sides of a paper rolling device. The position where the paper rolling device is located at least corresponds to the position above the lower end portion of a paper placing area/the paper to be shredded (1). Said method can adjust the automatic paper feeding speed, and as the pieces of paper to be shredded conveyed to the automatic paper feeding passage are in a partial overlapping state, a paper shredding cutter can shred a plurality of pieces of paper simultaneously, thereby improving the paper shredding speed; also, said method can effectively avoid overload during automatic paper feeding and automatic paper shredding.

Description

Shredder automatic feeding method and shredder for improving automatic paper feeding device

Technical field

The invention relates to the technical field of shredders, in particular to a shredder automatic feeding method and a shredder for improving an automatic paper feeding device.

Background technique

The shredder is equipped with an automatic paper feeding device, and the automatic paper feeding device sequentially drives a sheet of paper placed on the top surface of the paper feed tray of the automatic paper feed port to smoothly enter automatically by the friction generated by the rotation of the paper winding roller or the pickup roller. The paper feed path smashes the paper through the shredder tool in the automatic paper feed path.

At present, the shredded paper automatic paper feeding device has the following problems. First, the automatic paper feeding device unidirectionally moves the topmost paper to move down into the automatic paper feed path, and the paper roll or pickup roller starts from the end of the paper. If the paper on the top side moves down and the paper on the top surface moves down completely and leaves the paper roll and enters the paper feed path, the paper roll starts to shake the next page of paper. The automatic paper feeder can only be broken at a time. The paper cutter transports a piece of waste paper, that is, the shredder tool smashes only one piece of paper at a time, the paper feed speed and the shredder paper efficiency are extremely low; second, the paper feed speed can only be determined by the reel speed and is not adjustable, so there is It is necessary to improve.

Summary of the invention

In view of the deficiencies of the prior art, the first object of the present invention is to provide an automatic paper feeding method for a shredder, which uses a new paper feeding method to automatically feed paper, and the automatic paper feeding action is stable and reliable, and the paper feeding speed and shredded paper are improved. speed.

In order to achieve the above object, the technical solution adopted by the present invention is: a shredder automatic feeding method, comprising the following steps,

1) a paper discharging step of placing a stack of sheets to be pulverized in a paper discharge area of a paper discharge mechanism and forming a paper stack which is inserted from the outside of the paper winding device and the lower end portion of the paper stack exceeds the setting of the paper winding device The distance H is such that the paper to be pulverized and the automatic paper feed path are respectively located on both sides of the paper winding device;

2) a paper pressing step of pressing the paper to be pulverized by the paper pressing mechanism to the paper winding device;

3) The automatic paper winding step controls the paper roll device to rotate in the forward direction and automatically rolls the paper continuously. The rotation direction of the upper portion of the paper roll device is rotated from the side of the paper to be pulverized toward the side of the automatic paper feed path, and the paper roll device is waiting Grinding the paper to be pulverized at a position above the lower end portion of the pulverized paper, so that the lower end portion of the paper to be pulverized reaches the position of the paper winding device, and then passes over the paper winding device and enters the automatic paper feed passage;

4) The automatic continuous feeding step controls the continuous rotation of the paper winding device, and the paper winding device continuously pulsates the paper to be pulverized at the top surface of the paper stack, so as to overturn to the automatic paper feeding passage and/or enter the automatic paper feeding passage. Each of the paper to be pulverized has a partial overlap;

5) The shredding step, the paper to be pulverized into the automatic paper feed path or a plurality of overlapping paper to be pulverized is pulverized by the shredder cutter in the shredder core.

In a further technical solution, the invention adopts a new paper feeding mode automatic feeding and overload processing mode, improves the paper feeding speed and the shredding speed, has intelligent automatic feeding, effectively prevents overload, and has stable and reliable action. The shredder is provided with an anti-overload limit paper feed processing step, and at least one paper feed set value and/or work strength set value is stored or set in the control circuit, and the number of sheets/thickness of the automatic paper feed path is detected by the detecting device. And/or the working intensity of the shredder, and a corresponding detection value is sent to the control circuit, and is controlled by the control circuit when the detected value received by the control circuit is greater than the set paper feed set value or the work intensity set value The paper winding device stops the roll paper, and the shredder stops the automatic paper feeding, but at the same time controls the shredder tool to keep the shredded paper until the detection value received by the control circuit is less than the set paper feed set value or the work intensity set value. Control the circuit to continue to roll the paper by the control circuit, and the shredder restores the automatic paper feeding; the number/thickness of the paper to be pulverized entering the automatic paper feed passage is controlled within the set range, thereby preventing the paper shredder from being overloaded. phenomenon.

In view of the deficiencies of the prior art, a second object of the present invention is to provide a shredder for improving the automatic paper feeding device, which has a simple structure, stable and reliable operation, and improved paper feed speed and paper shredding speed.

In order to achieve the above object, the technical solution adopted by the present invention is: a shredder for improving an automatic paper feeding device, comprising a shredder head, an automatic paper feed path, a paper winding device and a paper feeding machine on the shredder head a mechanism, a shredder cutter is disposed in or below the automatic paper feed path, and the paper discharge mechanism is provided with a paper discharge area for placing the paper to be pulverized, and the paper discharge mechanism and the automatic paper feed passage are respectively located on both sides of the paper roll device; The channel and the paper discharge area are respectively located on both sides of the paper roll device; the position of the paper roll device corresponds to the paper feed area/the middle portion of the paper to be pulverized, or the position of the paper roll device corresponds at least to the paper discharge area/paper to be pulverized The position above the lower end portion; when the paper winding device starts to pick up the paper, the paper winding device starts to smash the paper to be pulverized from the position or the middle portion above the lower end portion of the paper to be pulverized, first exits the paper discharge area, and over the lower end portion of the paper to be pulverized After the roll paper unit, it will enter the automatic paper feed path.

In a further technical solution, the invention has an intelligent automatic paper feeding and anti-overload processing device, which improves the paper feeding speed and the shredding speed, effectively prevents overload, and has stable and reliable action. The paper shredder is provided with detecting means for detecting the quantity/thickness of the paper entering the automatic paper feed path or the voltage/current of the shredder motor, and transmitting a detection value to the control circuit; the electrical connection detection of the input end of the control circuit The output end of the device and the control circuit are electrically connected to the shredder motor and the reeling motor respectively; the shredder has a normal shredded paper state, an anti-overload limit paper-feeding state and an overload protection state, a normal shredded state, and a control circuit to control the roll paper The motor rotates, the shredder motor rotates, the reeling device rotates and the paper to be pulverized is fed into the automatic paper feed path, the shredder cutter rotates and shreds; the anti-overload restricts the paper shredding state, during the automatic paper feeding process When the detected value received by the control circuit is greater than the set paper feed set value or the work intensity set value, the control circuit controls the shredder to enter the anti-overload limit paper feed and shred paper state, and the control circuit controls the roll paper motor to stop, The shredder motor keeps rotating, the reeling device stops the roll paper, and the shredder cutter keeps shredding;

In the anti-overload limit paper-feeding state, when the detection value received by the control circuit is less than the paper feed set value or the work intensity set value, the control circuit controls the shredder to enter the normal shredder state, and the control circuit controls the roll paper. The motor starts to rotate, the shredder motor keeps rotating, the paper winding device starts to roll paper, and the shredder tool keeps shredding; in the overload protection state, when the detection value received by the control circuit is greater than the overload threshold m, the control circuit controls the shredded paper. The machine enters the overload protection state.

In view of the deficiencies of the prior art, a third object of the present invention is to provide a shredder for improving an automatic paper feeding device capable of adjusting an automatic paper feed speed.

In order to achieve the above object, the technical solution adopted by the present invention is that the paper feeding area and/or the paper insertion chamber is provided with a paper insertion depth adjusting mechanism, and the paper insertion depth adjusting mechanism includes a driving mechanism and a paper feeding mechanism, and a driving mechanism Connecting the paper feeding mechanism, the paper feeding mechanism includes a bottom of the paper insertion chamber, or an lifting pallet disposed in the paper feeding area/paper insertion chamber; when adjusting the paper feeding speed, the driving mechanism drives the paper insertion chamber or the lifting tray to rise or decline.

The advantages of the present invention over the prior art are:

First, the present invention automatically conveys the paper to be pulverized to the automatic paper feed path, and the paper to be pulverized conveyed to the automatic paper feed passage is partially overlapped, and the shredder cutter simultaneously smashes a plurality of sheets of paper to be pulverized at the time of shredding, paper feed speed Faster and faster shredder speed.

Secondly, the invention has the intelligent paper feeding function, automatically stops the automatic paper feeding before the number or thickness of the paper entering the automatic paper feed passage reaches the rated maximum number of sheets or thickness, stops the paper feed in advance, and the shredder maintains Automatic shredder paper, effectively preventing overload during automatic paper feeding and automatic paper shredding.

Thirdly, the present invention adjusts the paper feed speed by adjusting the height position of the paper insertion chamber or the lift tray, and adjusts the initial paper picking position of the paper roll on the paper to be pulverized, thereby adjusting the entry into the automatic paper feed path. The overlapping length of the adjacent two papers to be pulverized is adjusted to adjust the number of overlaps of the paper to be pulverized conveyed to the automatic paper feed passage, thereby realizing the adjustment of the automatic paper feed speed.

DRAWINGS

The invention will now be further described with reference to the drawings and embodiments.

Figure 1 is a schematic view of the structure of the present invention.

Figure 2 is a schematic view showing the structure of the shredder head of the present invention after the hidden casing.

Fig. 3 is a schematic view showing the structure of the present invention after the paper to be pulverized is placed in the paper discharge area.

Fig. 4 is a schematic view showing the structure of the roll paper of the present invention when it starts to be creped.

Figure 5 is a schematic view showing the structure of the paper roll to be pulverized in the present invention when the paper roll is turned over and the paper roll starts to shake the next paper.

Fig. 6 is a structural schematic view showing the paper roll to be pulverized in the present invention when it passes through the paper roll and enters the automatic paper feed path.

Fig. 7 is a structural schematic view showing the shredder of the shredder tool of the present invention.

Figure 8 is a schematic view showing the structure of continuous automatic feeding and shredding of the present invention.

Figure 9 is a schematic view showing the structure of a platen mechanism of the present invention.

Figure 10 is a schematic view showing the structure of the present invention provided with a lifting pallet.

Marked in the figure:

1. Paper to be pulverized 2, winding roller 3, lifting pallet 4, paper insertion chamber 5, automatic paper feed passage 6, shredder cutter 8, groove 9, shredder core 10, rotating shaft 11, top cardboard 12, The driven shaft 13, the friction transmission wheel 14, the window 15, the automatic paper feed port 16, the paperboard 17, and the safety cover.

Detailed ways

The following are only preferred embodiments of the invention and are not intended to limit the scope of the invention.

Embodiment 1

The automatic paper feeding method of the shredder, as shown in Figures 1 to 10, includes the following steps,

1) a paper-feeding step of stacking the paper-receiving areas of the paper-removing mechanism of the paper 1 to be pulverized and forming a paper stack which is inserted from the outside of the paper winding device and the lower end portion of the paper stack exceeds the set distance of the paper winding device H, as shown in Fig. 3, the paper 1 to be pulverized and the automatic paper feed path 5 are respectively located on both sides of the paper winding device. The paper winding device selects the paper winding wheel set or the winding paper roller 2, inserts the lower end portion of the paper stack into the paper insertion chamber 4 or the lifting pallet 3 located outside the winding roller 2, and inserts the paper into the bottom of the chamber 4 or the lifting tray The plate 3 is lower than the set height of the winding roller 2, and the automatic feeding speed is adjusted by adjusting the bottom of the paper insertion chamber 4 or the relative position of the lifting pallet 3 for holding the paper stack with respect to the winding roller 2, including The overlapping length of the adjacent two sheets 1 to be pulverized into the automatic paper feed path 5 is adjusted, which simultaneously adjusts the number of overlapping sheets 1 to be pulverized into the automatic paper feed path 5. The bottom of the paper insertion chamber 4 or the height position of the lifting pallet 3 can be directly driven and adjusted by a mechanism driving assembly such as a knob or a push switch, or the bottom of the paper insertion chamber 4 or the lifting pallet 3 can be driven by the motor to be lifted and lowered by electronic control. The method controls the operation of the motor, as long as the paper position of the winding roller 2 on the paper 1 to be pulverized can be adjusted, and the purpose of adjusting the automatic paper feeding speed can be achieved.

2) Pressing step, pressing the paper 1 to be pulverized by the paper pressing mechanism to the paper winding device, so that the paper winding roller 2 of the paper winding device and the paper 1 to be pulverized have a large friction force, so that the paper winding device can Smoothly shake the paper 1 to be smashed.

3) The automatic paper winding step controls the paper roll device to rotate in the forward direction and automatically rolls the paper continuously. The rotation direction of the upper portion of the paper roll device is rotated from the side of the paper 1 to be pulverized toward the side of the automatic paper feed path 5, and the paper roll device Starting from the position above the lower end of the paper 1 to be pulverized, the paper 1 to be pulverized is started, and the lower end of the paper 1 to be pulverized reaches the position of the paper winding device, and then the paper winding device is turned over and enters the automatic paper feed path 5; 8 , wherein the paper winding device starts to smash the paper 1 to be pulverized from the middle of the paper 1 to be pulverized, so that the papers 1 to be pulverized entering the automatic paper feed path 5 are arranged in a ladder type, and the adjacent two The paper 1 to be pulverized has a partial overlap, the lower end of the paper stack exceeds the distance of the paper winding device by H, and the automatic paper feed speed is adjusted and the automatic paper feed path is adjusted by adjusting the distance H of the lower end of the paper stack beyond the paper winding device. The overlapping length L of the adjacent two sheets 1 to be pulverized in 5.

The automatic roll paper step includes the following sub-processes.

a) Reverse the paper, the paper winding device selects the paper roll wheel or the paper roll 2, and controls the paper roll 2 to rotate continuously in the forward direction. When the paper roll 2 rotates in the forward direction, only the top surface of the paper pile is shaken. The pulverizing paper 1 is moved upward or outward, and the winding roller 2 starts to smash the paper 1 to be pulverized from the middle of the paper 1 to be pulverized, and first moves the lower end portion of the paper 1 to be pulverized which is in contact with the winding roller 2 or Move outward to the position of the winding roller 2, as shown in Figure 4;

b) Over the winding roller 2, when the lower end portion of the sheet 1 to be pulverized which is turned toward the upper direction is moved to the position where the winding roller 2 is located, the winding roller 2 is reeled or pushed as the winding roller 2 continuously rotates forward. The lower end portion of the paper 1 to be pulverized moves the lower end portion of the paper 1 to be pulverized from the outer side of the winding roller 2 to the side where the automatic paper feed path 5 is located, and as shown in FIG. 5, the lower end portion of the paper 1 to be pulverized is rolled from the paper. The upper portion of the wheel 2 spans the past and enters the automatic paper feed path 5, as shown in FIG. 6;

c) suction and shredded paper, the paper 1 to be pulverized into the automatic paper feed path 5 is sucked into the shredder core 9 by the paper take-up mechanism or the shredder 6 mounted in the automatic paper feed path 5, and Crushing by shredder 6 as shown in Figures 7 and 8;

The paper 1 to be pulverized is moved by a friction surface, a groove 8, a concave, a ridge or a convex tooth provided on the wheel surface of the winding roller 2, preferably, the circumference of the winding surface of the winding roller 2 is circumferential A plurality of grooves 8 or ridges are formed in the direction interval. When the lower end portion of the paper 1 to be pulverized reaches the upper portion of the winding roller 2, the lower end portion of the paper 1 to be pulverized can be inserted into or dropped into the groove 8 or the adjacent two ribs. In the gap, the lower end portion of the paper 1 to be pulverized is smoothly passed over the winding roller 2 through the groove 8 or the rib strip and the lower end portion of the paper 1 to be pulverized, and reaches the automatic paper feed path 5 side.

4) The automatic continuous feeding step controls the continuous winding of the paper winding device, and the paper winding device continuously pulsates the paper 1 to be pulverized at the top surface of the paper stack, so as to overtake to the automatic paper feeding path 5 or enter the automatic paper feeding path 5 Each of the sheets 1 to be pulverized has a partial overlap; in the automatic continuous feeding process, the overlapping lengths of the adjacent two sheets 1 to be pulverized into the automatic paper feed path 5 are substantially the same.

5) The shredding step, the paper to be pulverized into the automatic paper feed path 5 or a plurality of overlapping sheets 1 to be pulverized are pulverized by the shredder cutter 6 in the shreddering core 9.

The invention changes the original automatic paper feeding mode, and the paper winding roller 2 does not directly shake the paper 1 to be pulverized into the automatic feeding path 5, but first shakes the paper 1 to be pulverized to move upward or outward, that is, The paper 1 to be pulverized is first moved in the opposite direction to the paper feed direction of the automatic paper feed path 5, so that the paper 1 to be pulverized is first ejected from the paper insertion chamber 4, and then turned over the winding roller 2 at the lower end portion of the paper 1 to be pulverized , and then enter the automatic paper feed path 5, in the process, the winding roller 2 keeps rotating in the same direction, no need to change direction or stop, and no other auxiliary device is needed to change the moving direction of the paper 1 to be pulverized, thereby automatically A continuous paper feed having partial overlap is formed in the paper feed path 5, and the paper 1 to be pulverized is continuously conveyed. When the paper is shredded, the paper shredder 6 simultaneously pulverizes a plurality of sheets of paper 1 to be pulverized, the paper feed speed is faster, and the paper shredding speed is increased.

In addition, the present invention adjusts the paper feed speed by adjusting the height position of the paper insertion chamber 4 or the lift tray 3, and adjusts the initial paper feed position of the paper roll 2 on the paper 1 to be pulverized, thereby adjusting the entry into the automatic paper feed. The overlapping length of the adjacent two sheets 1 to be pulverized in the passage 5 realizes the adjustment of the number of overlaps of the sheets 1 to be pulverized conveyed to the automatic paper feed path 5, thereby realizing the adjustment of the automatic paper feed speed.

Embodiment 2

The automatic paper feeding method of the shredder, as shown in FIG. 1 to FIG. 10, is to increase the anti-overload limit paper feeding processing step on the basis of the first embodiment to realize intelligent automatic paper feeding, and specifically includes the following steps: 1) Paper feeding step, 2) paper pressing step, 3) automatic paper winding step, 4) automatic continuous paper feeding step, 5) paper shredding step, and 6) anti-overload limit paper feeding processing step, wherein the paper discharging step and the paper pressing step The automatic paper roll step, the automatic continuous paper feed step, and the shredded paper step are the same as the corresponding steps of the first embodiment, and will not be repeated here.

The anti-overload limit paper feed processing step stores or sets at least one paper feed set value or work intensity set value in the control circuit, and detects the paper quantity or thickness of the automatic paper feed path 5 by the detecting device, and can also detect the shredded paper The working intensity of the machine, for example, detecting the voltage or current of the shredder motor, and transmitting a corresponding detection value to the control circuit,

When the detection value received by the control circuit is greater than the set paper feed set value or the work intensity set value, the paper roll device stops the roll paper by the control circuit, the shredder stops the automatic paper feed, and controls the shredder tool 6 Keeping the shredded paper until the detection value received by the control circuit is less than the set paper feed set value or the work intensity set value, the paper roll device is again controlled to continue the roll paper by the control circuit, and the shredder resumes the automatic paper feed;

The number/thickness of the paper 1 to be pulverized entering the automatic paper feed path 5 is controlled within the set range to prevent the paper shredder from being overloaded.

The anti-overload limit paper feed processing step is provided with a detecting step, and the detecting step may select one of the following modes or a combination thereof.

a) detecting the number or thickness of the paper 1 to be pulverized into the automatic paper feed path 5 by the paper quantity/thickness detecting means, and transmitting a corresponding detection value to the control circuit, and the control circuit sets the detection value and the paper feed setting Values are compared;

b) detecting the working voltage or current of the shredder motor of the shredder by a voltage/current detecting device, and transmitting a corresponding detection value to the control circuit, and the control circuit compares the detected value with the working intensity setting value;

When the shredder is overloaded or the number of sheets of the automatic paper feed path 5 reaches the rated maximum number, the shredder in this state is set to have an overload threshold m,

Setting the increment of the detection value received by the control circuit for each additional paper 1 to be pulverized in the automatic paper feed path 5 is a single value n, setting the paper feed set value or the work intensity setting value a;

When the detected value received by the control circuit is greater than the feed set value or the work intensity set value, the detected value is still less than the overload threshold m, and the corresponding working state of the shredder at this time is: the shredder does not reach the overload working state. , the rated maximum working limit is not reached or the trigger condition for triggering overload protection is not reached;

Overload threshold m-a>(0~3)×single value n;

When the detected value received by the control circuit is greater than the overload threshold m, the shredder is in an overload state, the control circuit triggers an overload protection command, and the shredder performs an overload protection command, such as controlling the shredder tool 6 to reverse the setting. The number of turns, and then forward the set number of turns, so repeated forward and reverse at least once, used to solve the overload or paper jam problem.

The invention changes the original automatic paper feeding mode. The paper winding roller of the present invention automatically conveys a paper 1 to be pulverized to the automatic paper feeding passage 5 every time the paper is fed, after the last paper 1 to be pulverized is separated from the crepe paper position. The paper roll immediately shakes the next paper 1 to be pulverized, and automatically conveys the next paper to be pulverized to the automatic paper feed path 5 at least before the previous paper 1 to be pulverized completely enters the automatic paper feed path 5. And the two adjacent papers 1 to be pulverized have a partial overlap, and the shredder cutter pulverizes a plurality of sheets of paper to be pulverized at the same time when the paper is shredded, the paper feeding speed is faster, and the paper shredding speed is improved.

The key point of the present invention is that the invention has the function of intelligent feeding, automatically stops the automatic feeding before the number or thickness of the paper entering the automatic paper feeding passage reaches the rated maximum number or thickness, and stops the feeding in advance, and is broken. The paper machine maintains automatic shredding, which effectively prevents overload during automatic paper feeding and automatic paper shredding.

In addition, when the paper is automatically fed, the winding roller 2 does not directly shake the paper 1 to be pulverized into the automatic feeding path 5, but first moves the paper 1 to be pulverized upward or outward, that is, the paper to be pulverized 1 First, moving toward the opposite direction of the paper feed direction of the automatic paper feed path 5, the paper 1 to be pulverized is first ejected from the paper insertion chamber 4, and then the paper roll 2 is turned over at the lower end of the paper 1 to be pulverized, and then automatically entered. In the paper feeding path 5, in this process, the winding roller 2 rotates in the same direction at all times, there is no need to change direction or stop, and no other auxiliary device is needed to change the moving direction of the paper 1 to be pulverized, thereby being in the automatic paper feed path 5 The continuous feeding with partial overlap is formed, and the paper 1 to be pulverized is continuously conveyed. When the paper is shredded, the shredder 6 simultaneously pulverizes a plurality of sheets of paper 1 to be pulverized, the paper feeding speed is faster, and the speed of shredding is increased.

Furthermore, the present invention adjusts the paper feed speed by adjusting the height position of the paper insertion chamber 4 or the lift tray 3, and adjusts the initial paper picking position of the paper roll 2 on the paper 1 to be pulverized, thereby adjusting the entry into the automatic feed. The overlapping length of the adjacent two sheets 1 to be pulverized in the paper path 5 is adjusted to adjust the number of overlaps of the sheets 1 to be pulverized conveyed to the automatic paper feed path 5, thereby realizing the adjustment of the automatic paper feed speed.

Embodiment 3

A paper shredder for improving an automatic paper feeding device, as shown in Figs. 1 to 10, comprising a shredder head, an automatic paper feed path 5, a paper winding device and a paper feeding mechanism, and an automatic paper feed path are provided on the shredder head A paper shredder 6 is disposed inside or below 5, and the paper feeding mechanism is provided with a paper feeding area for placing the paper 1 to be pulverized, and the paper feeding mechanism and the automatic paper feed path 5 are respectively located on both sides of the paper winding device; the automatic paper feed path 5 And the paper discharge area are respectively located on both sides of the paper roll device; the position of the paper roll device corresponds to the paper discharge area or the middle portion of the paper 1 to be pulverized.

The position of the paper winding device corresponds at least to the position of the paper discharge area or the lower end portion of the paper 1 to be pulverized; as long as the paper paper device is swaying two papers to be pulverized adjacent to each other, two adjacent ones to be pulverized The sheet 1 may have an overlapping portion in the height direction of one side of the sheet feeding area, or there may be an overlapping portion of the two sheets 1 to be pulverized adjacent to each other after entering the side of the automatic paper feed path 5.

When the paper winding device starts to pick up the paper, the paper winding device starts to smash the paper to be pulverized from the position or the middle portion above the lower end portion of the paper 1 to be pulverized, first exits the paper discharge area, and after the lower end portion of the paper 1 to be pulverized is turned over the paper winding device Then enter the automatic paper feed path 5 in the forward direction.

Wherein, the shredder head is provided with a shredder movement 9 and a transmission mechanism, and the reeling device comprises a rotating shaft 10 and a plurality of winding rollers 2, the rotating shaft 10 is rotatably mounted on the shreddering core 9, and the transmission mechanism is connected to the rotating shaft 10, and the rotating shaft 10 The shaft body is mounted with at least one paper roll 2; one or three winding rolls 2 are respectively mounted on the middle and/or the two sides of the shaft body of the rotating shaft 10, and the rolling surface of the winding paper wheel 2 is provided with a rubbing friction surface, Groove 8, concave, relief or convex teeth. Preferably, the treads of the winding roller 2 are circumferentially arranged with a plurality of grooves 8, convex teeth or ridges. When the lower end portion of the paper 1 to be pulverized reaches the upper portion of the winding roller 2, the lower end portion of the paper 1 to be pulverized can be inserted or dropped into the gap of the groove 8 or the adjacent two ribs, passing through the groove 8 or the ridge strip The lower end portion of the paper 1 to be pulverized is pulled and pulled so that the lower end portion of the paper 1 to be pulverized smoothly traverses from above the winding roller 2 to the side where the automatic paper feed path 5 is located.

The paper feeding mechanism includes at least one paper insertion chamber 4, the automatic paper feed path 5 and the paper insertion chamber 4 are respectively located at both side positions of the winding roller 2, and the paper insertion chamber 4 extends upward from the lower side of the winding roller 2 and extends at least to When the winding roller 2 starts to pick up the paper, the winding roller 2 starts to smash the paper to be pulverized from the middle of the paper 1 to be pulverized, first exits the paper insertion chamber 4, and over the lower end of the paper 1 to be pulverized The paper roll 2 then enters the automatic paper feed path 5 in the forward direction.

The paper shredder head is mounted with a paper pressing mechanism, and the paper pressing mechanism includes a paper pressing driving mechanism and a top paperboard 11, and the paper pressing driving mechanism is connected to the top paperboard 11, and the top paperboard 11 protrudes from the outside of the paper insertion chamber 4 into the paper insertion chamber 4. The portion of the top board 11 that projects into the sheet insertion chamber 4 forms a platen portion on the side of the sheet winding device, and the direction in which the platen portion moves is toward the sheet winding device.

The shredder movement 9 is rotatably mounted with a driven shaft 12, the driven shaft 12 is disposed outside the paper insertion chamber 4, and the driven shaft 12 is coupled to the transmission mechanism; the shaft of the driven shaft 12 is fixed with at least one friction transmission wheel 13 The upper part of the top board 11 is provided with a friction transmission hole, and the friction transmission hole is sleeved on the friction transmission wheel 13. When the driven shaft 12 rotates, the friction transmission wheel 13 is driven by the frictional force between the wheel surfaces; the paper insertion chamber At least one window 14 is opened in the middle of the outer side wall of the outer wall, and the middle and lower portions of the top paperboard 11 pass through the window 14 and protrude into the paper insertion chamber 4 for inserting into the middle of the paper 1 to be pulverized into the paper insertion chamber 4. Abutting against the winding roller 2, a large frictional force is generated between the winding roller 2 of the winding device and the paper 1 to be pulverized, so that the winding device can smoothly smash the paper 1 to be pulverized.

The upper portion of the shredder head is provided with an automatic paper feed port 15 which is disposed at an outer position of the automatic paper feed port 15, the paper roll 2 is located at a middle position of the automatic paper feed port 15, and the automatic paper feed path 5 is disposed at The inner position of the automatic paper feed port 15; the paper discharge mechanism includes a paperboard 16 and a safety cover plate 17, and the safety cover plate 17 may be a single cover plate or a foldable foldable combination cover plate which is connected by a plurality of plate bodies. The lower end portion of the paperboard 16 is rotatably mounted on the upper portion of the shredder head, and the lower end portion of the paperboard 16 is connected to or adjacent to the upper portion of the rear side wall of the paper insertion chamber 4, and the paperboard 16 is covered automatically when the automatic paper feeding function is not used. The upper part of the paper feeding port 15 is pivoted or snapped inside the automatic paper feeding port 15, and the outer side of the safety cover 17 is engaged with the middle of the paper board 16, and the safety cover 17 is sealed when the paper is shredded. Cover the automatic paper feed port 15 to eliminate safety hazards.

The paper feeding area or the paper insertion chamber 4 is provided with a paper insertion depth adjusting mechanism including a driving mechanism and a paper feeding mechanism, and the driving mechanism is connected to the paper feeding mechanism, and the paper feeding mechanism includes a bottom of the paper insertion chamber 4, and a paper winding roller A storage box is attached to one side of the container, and the inner cavity of the storage case forms a paper insertion chamber 4, and the drive mechanism drives the storage box to ascend or descend to raise or lower the paper insertion chamber 4.

In a preferred embodiment, the paper feed mechanism includes a lift plate 3 disposed in the paper discharge area or paper insertion chamber 4. As shown in Fig. 10, when the paper feed speed is adjusted, the drive mechanism drives the paper insertion chamber 4 or the lift tray 3 to ascend or descend, thereby realizing the adjustment of the automatic paper feed speed.

In a preferred embodiment, a knob or a push switch is disposed on the shredder head, and the knob or the push switch is connected to the paper insertion chamber 4 or the lift tray 3 through a transmission mechanism such as a connecting rod, when the knob is rotated or the push switch is pushed, Thereby, the paper insertion chamber 4 or the elevating tray 3 is driven to rise or fall, and the automatic paper feed speed is adjusted.

In another preferred embodiment, a motor is mounted in the shredder core 9, and the motor is connected to the paper insertion chamber 4 or the lifting pallet 3 through a mechanism transmission mechanism such as a transmission gear or a rack, and the motor is controlled by a control switch or the like. The motor drives the paper insertion chamber 4 or the lift pallet 3 to rise or fall by the mechanism transmission mechanism.

In the initial state, the paper 1 to be pulverized placed in the paper discharge area or the paper insertion chamber 4 is substantially in a vertical state or a tilted state slightly inclined toward the outside, and the contact position of the paper 1 to be pulverized with the winding roller 2 is The starting crepe position, the distance from the starting crepe position to the lower end of the paper 1 to be pulverized is H, that is, the contact position of the paper 1 to be pulverized with the winding roller 2 to the bottom of the paper insertion chamber 4 or the lifting pallet 3 The distance is H, and the automatic paper feed speed is adjusted by adjusting the distance H to adjust the automatic paper feed speed and the overlap length L of the adjacent two sheets entering the automatic paper feed path 5.

Embodiment 4

A shredder for improving the automatic paper feeding device. In this embodiment, an anti-overload control device is added on the basis of the third embodiment to realize intelligent automatic paper feeding. The main structure of the embodiment is the same as that of the third embodiment. The same points will not be repeated here, as shown in Figures 1 to 10, including shredder head, shredder motor, shredder tool 6 and control circuit. The shredder head is provided with automatic paper feed port and automatic paper feed port. An automatic paper feed path 5, a paper winding device and a paper discharge mechanism are provided, the paper shredder 6 is disposed in or below the automatic paper feed path 5, the shredded paper motor is connected to the shredder tool 6, and the paper discharge mechanism is provided for placing Grinding the paper feeding area of the paper 1 , a paper winding motor is installed in the paper shredder head, and the paper winding motor is connected to the paper winding device;

The shredder is provided with detecting means for detecting the number/thickness of the paper entering the automatic paper feed path 5 or the voltage/current of the shredder motor, and transmitting a detection value to the control circuit; the input end of the control circuit is electrically connected to the detecting device The output ends of the control circuit are electrically connected to the shredder motor and the reel motor respectively;

The shredder has a normal shredded paper state, an anti-overload limit paper feed and shred paper state, and an overload protection state.

In the normal shredded paper state, the control circuit controls the rotation of the winding paper motor, the rotation of the shredder motor, the rotation of the winding device, and the paper 1 to be pulverized is fed into the automatic paper feed path 5, and the shredder 6 is rotated and shredded;

The anti-overload limit feed paper shredder state, in the automatic paper feeding process, when the detection value received by the control circuit is greater than the set paper feed set value or work intensity set value, the control circuit controls the shredder to enter the overload prevention Limiting the state of paper feed and shredder, the control circuit controls the roll paper motor to stop, the shredder motor keeps rotating, the paper roll device stops the roll paper, and the shredder tool 6 keeps shredding;

In the anti-overload limit paper-feeding state, when the detection value received by the control circuit is less than the paper feed set value or the work intensity set value, the control circuit controls the shredder to enter the normal shredder state, and the control circuit controls the roll paper. The motor starts to rotate, the shredder motor keeps rotating, the winding device starts to roll, and the shredder 6 keeps shredding;

In the overload protection state, when the detection value received by the control circuit is greater than the overload threshold m, the control circuit controls the shredder to enter the overload protection state.

The control circuit is provided with a control unit that stores or sets the paper feed set value or the work intensity set value; the shredder is provided with a paper quantity/thickness detecting device for detecting entry into the automatic paper feed The number or thickness of the paper of the channel 5 is sent to the control circuit for a detected value, or the shredder is provided with a voltage/current detecting means for detecting the voltage or current of the shredder motor and delivering a detected value to the control circuit.

Overload threshold m-a>(0~3)×single value n;

The paper feeding mechanism and the automatic paper feed path 5 are respectively located on both sides of the paper roll device; the automatic paper feed path 5 and the paper discharge area are respectively located on both sides of the paper roll device; the position of the paper roll device corresponds to the paper discharge area or the paper to be pulverized The middle section of 1.

The above content is only a preferred embodiment of the present invention, and those skilled in the art will have a change in the specific embodiment and application scope according to the idea of the present invention. The content of the present specification should not be construed as the present invention. limits.

Claims

The shredder automatic feeding method is characterized in that it comprises the following steps:

1) a paper discharging step of placing a stack of sheets to be pulverized (1) in a paper discharge area of a paper feeding mechanism and forming a paper stack which is inserted from the outside of the paper winding device and causes the lower end portion of the paper stack to exceed the paper winding device The set distance H is such that the paper to be pulverized (1) and the automatic paper feed path (5) are respectively located on both sides of the paper winding device;

2) a paper pressing step of pressing the paper to be pulverized (1) against the paper winding device by a paper pressing mechanism;

3) The automatic paper winding step controls the paper winding device to rotate in the forward direction and automatically rolls the paper continuously. The rotation direction of the upper portion of the paper winding device is rotated from the side where the paper to be pulverized (1) is located toward the side of the automatic paper feed path (5). The paper winding device starts to pulverize the paper to be pulverized (1) from a position above the lower end portion of the paper (1) to be pulverized, and causes the lower end portion of the paper (1) to be pulverized to reach the position of the paper winding device and then over the paper winding device. Enter the automatic paper feed channel (5);

4) The automatic continuous feeding step controls the continuous rotation of the paper winding device, and the paper winding device continuously pulsates the paper to be pulverized (1) at the top surface of the paper stack, so as to overturn to the automatic paper feeding path (5) and/or enter Each of the papers to be pulverized (1) in the automatic paper feed path (5) has a partial overlap;

5) The shredding step, smashing the paper to be pulverized (1) or the plurality of overlapping papers to be pulverized (1) entering the automatic paper feed path (5) by the shredder cutter (6) in the shredder movement (9) .
The paper shredder automatic paper feeding method according to claim 1, wherein in the automatic continuous paper feeding step, the paper winding device starts to shake the paper to be pulverized from the middle of the paper (1) to be pulverized (1) , the papers to be pulverized (1) entering the automatic paper feed path (5) are arranged in a ladder type, and the adjacent two papers to be pulverized (1) have partial overlap, and the lower end portion of the paper stack exceeds the paper winding device The distance is H, and the automatic paper feed speed and the overlapping length of the adjacent two sheets to be pulverized (1) entering the automatic paper feed path (5) are adjusted by adjusting the distance H of the lower end of the paper stack beyond the paper winding device. L.
The paper shredder automatic paper feeding method according to claim 1, wherein in the paper discharging step, the paper winding device selects a paper winding wheel set or a winding paper wheel (2), and inserts the lower end portion of the paper pile into the paper feeding device. a paper insertion chamber (4) or a lifting pallet (3) located outside the winding roller (2), and inserting the paper (1) to be pulverized into the bottom of the chamber (4) or the lifting pallet (3) is lower than the winding roller (2) The set height is adjusted by adjusting the relative position of the bottom of the paper insertion chamber (4) or the lifting pallet (3) for holding the paper stack relative to the winding roller (2), This includes adjusting the overlapping length of the adjacent two sheets to be pulverized (1) entering the automatic paper feed path (5), and adjusting the number of overlapping sheets (1) to be pulverized into the automatic paper feed path (5). .
The paper shredder automatic paper feeding method according to claim 1, wherein the automatic paper winding step comprises the following sub-process,

a) Reversely smashing the paper, the paper winding device adopts a winding paper wheel set or a winding paper wheel (2), and controls the paper winding wheel (2) to rotate continuously in the forward direction, and the winding paper wheel (2) rotates only when the paper is rotating forward. The paper to be pulverized at the top of the moving paper stack (1) moves upward or outward, and the winding roller (2) starts to smash the paper to be pulverized (1) from the middle of the paper to be pulverized (1), firstly The lower end portion of the paper (1) to be pulverized contacted by the winding roller (2) moves upward or outward to the position where the winding roller (2) is located;

b) Over the winding roller (2), when the lower end portion of the sheet (1) to be pulverized is moved upward to the position where the winding roller (2) is located, as the winding roller (2) continuously rotates in the forward direction, The winding roller (2) winds or pushes the lower end portion of the paper (1) to be pulverized, and moves the lower end portion of the paper (1) to be pulverized from the outer side of the winding roller (2) to the automatic paper feed path (5). On one side, the lower end of the paper to be pulverized (1) traverses from the upper portion of the winding roller (2) and enters the automatic paper feed path (5);

c) suction and shredded paper, the paper to be pulverized into the automatic paper feed path (5) (1) is sucked by the paper suction mechanism and/or the shredder (6) installed in the automatic paper feed path (5) The roll enters the shredder core (9) and is comminuted by a shredder (6);

In the above steps, the paper to be pulverized (1) is moved and/or spanned by a friction surface, a groove (8), a concave, a ridge or a convex tooth provided on the wheel surface of the winding roller (2). Paper wheel (2).
The paper shredder automatic paper feeding method according to claim 1, wherein:

The anti-overload limit paper feed processing step is set, and at least one paper feed set value and/or work intensity set value is stored or set in the control circuit, and the number of sheets/thickness of the automatic paper feed path (5) is detected by the detecting device. And/or the working strength of the shredder and deliver a corresponding detection value to the control circuit,

When the detected value received by the control circuit is greater than the set paper feed set value or the work intensity set value, the paper control device controls the paper roll device to stop the roll paper, and the paper shredder stops the automatic paper feed, but simultaneously controls the paper shredder tool. (6) Keep the shredded paper until the control value received by the control circuit is less than the set paper feed set value or work intensity set value, and then control the paper roll device to continue the roll paper by the control circuit, and the shredder recovers automatically. Paper feeding

The number/thickness of the paper (1) to be pulverized entering the automatic paper feed path (5) is controlled within the set range to prevent the paper shredder from being overloaded.
The paper shredder automatic paper feeding method according to claim 5, wherein in the anti-overload limit paper feeding processing step, one of the following processing modes or a combination thereof is selected.

a) detecting the number or thickness of the paper (1) to be pulverized into the automatic paper feed path (5) by the paper amount/thickness detecting device, and transmitting a corresponding detection value to the control circuit, and the control circuit compares the detected value with Feed setting values are compared;

b) detecting the working voltage/current of the shredder motor of the shredder by the voltage/current detecting device, and transmitting a corresponding detection value to the control circuit, and the control circuit compares the detected value with the working intensity setting value;

When the shredder is overloaded or the number of sheets of the automatic paper feed path (5) reaches the rated maximum number, the shredder in this state is set to have an overload threshold m,

Set the increment of the detection value received by the control circuit for each additional sheet of paper to be pulverized (1) in the automatic paper feed path (5) to a single value n, set the paper feed set value or work intensity set value. a;

When the detected value received by the control circuit is greater than the feed set value or the work intensity set value, the detected value is still less than the overload threshold m, and the corresponding working state of the shredder at this time is: the shredder does not reach the overload working state. , the rated maximum working limit is not reached or the trigger condition for triggering overload protection is not reached;

Overload threshold m-a>(0~3)×single value n;

When the detected value received by the control circuit is greater than the overload threshold m, the shredder is in an overload state, the control circuit triggers an overload protection command, and the shredder performs an overload protection command.
A shredder for improving an automatic paper feeding device, comprising a shredder head, an automatic paper feed path (5), a paper winding device and a paper feeding mechanism are arranged on the shredder head, and shredded paper is installed in the shredder head The motor, the control circuit and the shredder tool (6) are arranged in or below the automatic paper feed path (5), the shredder motor drive is connected to the shredder tool (6), and the paper discharge mechanism is provided with a paper for placing the paper to be pulverized (1). a paper discharge area, characterized in that: an automatic paper feed path (5) and a paper discharge area are respectively located on both sides of the paper winding device;

The position of the paper roll device corresponds to the middle portion of the paper discharge area/paper to be pulverized (1), or the position of the paper roll device corresponds at least to a position above the lower end portion of the paper discharge area/paper to be pulverized (1);

When the paper winding device starts to pick up the paper, the paper winding device starts to shake the paper to be pulverized (1) from the position or the middle portion above the lower end portion of the paper (1) to be pulverized, and first exits the paper discharge area at the lower end of the paper (1) to be pulverized. After the paper is turned over, the paper enters the automatic paper feed path (5).
A shredder for improving an automatic paper feeding device according to claim 7, wherein said shredder head is provided with a shredder movement (9) and a transmission mechanism, and said reeling device comprises at least one a rotating shaft (10) and at least one winding roller (2), the rotating shaft (10) is rotatably mounted on the shredder movement (9), the transmission mechanism is connected to the rotating shaft (10), and the shaft of the rotating shaft (10) is installed with at least one winding Paper wheel (2);

The paper feeding mechanism includes at least one paper insertion chamber (4), the automatic paper feed path (5) and the paper insertion chamber (4) are respectively located at two sides of the winding roller (2), and the paper insertion chamber (4) ) extending upward from the lower side of the winding roller (2) and extending at least to the position of the winding roller (2), and the winding roller (2) from the paper to be pulverized (1) when the winding roller (2) starts to pick up the paper The middle part starts to shake the paper to be pulverized (1) first exits the paper insertion chamber (4), and after the lower end of the paper (1) to be pulverized, the paper roll (2) is turned over and then enters the automatic paper feed path (5).
A shredder according to claim 7, wherein the shredder head is provided with a platen mechanism, and the platen mechanism comprises a platen driving mechanism and a top board (11). The platen driving mechanism is connected to the top board (11), and the top board (11) protrudes from the outside of the paper insertion chamber (4) into the paper insertion chamber (4), and the top board (11) projects into the paper insertion chamber (4). A portion of the paper pressing portion is formed, the paper pressing portion is located on one side of the paper winding device, and the moving direction of the paper pressing portion faces the paper winding device.
A shredder according to an improved automatic paper feeding device according to claim 7, wherein said shredder core (9) is rotatably mounted with a driven shaft (12), and the driven shaft (12) is disposed at The paper insertion chamber (4) is externally connected, the driven shaft (12) is drivingly connected to the transmission mechanism; the shaft of the driven shaft (12) is fixed with at least one friction transmission wheel (13), the top board (11) The upper part of the opening is provided with a friction transmission hole, and the friction transmission hole is sleeved on the friction transmission wheel (13). When the driven shaft (12) rotates, the friction transmission wheel (13) friction transmission hole is driven and matched by the frictional force between the wheel surfaces; At least one window (14) is opened in the middle of the outer side wall of the paper insertion chamber (4), and the middle and lower portions of the top cardboard (11) pass through the window (14) and protrude into the paper insertion chamber (4) for The middle portion of the paper (1) to be pulverized inserted into the paper insertion chamber (4) abuts against the winding roller (2).
A paper shredder for an improved automatic paper feeding device according to claim 8, wherein one or three of said rolls are respectively mounted on the central portion and/or both sides of the shaft body of said rotating shaft (10). The paper wheel (2) and the tread wheel (2) are provided with a rubbing friction surface, a groove (8), a concave, a convex or a convex tooth;

An upper paper feed port (15) is disposed at an upper portion of the shredder head, the paper insertion chamber (4) is disposed at an outer position of the automatic paper feed port (15), and the paper roll (2) is located at an automatic advancement a central position of the paper opening (15), the automatic paper feed path (5) is disposed at an inner position of the automatic paper feed port (15);

The paper feeding mechanism comprises at least one cardboard (16) and at least one safety cover (17), the lower end of the paperboard (16) is rotatably mounted on the upper part of the shredder head, and the lower end of the paperboard (16) Attached or adjacent to the upper portion of the rear side wall of the paper insertion chamber (4), the paperboard (16) is capped on the upper portion of the automatic paper feed port (15) when the automatic paper feeding function is not used;

The inner side of the safety cover (17) is pivotally or snapped to the inner side of the automatic paper feed port (15), and the outer side of the safety cover (17) is snapped to the middle of the paper board (16), and the safety cover is shredded. (17) Cover the automatic paper feed port (15).
A shredder according to an improved automatic paper feeding device according to claim 8, wherein said paper discharge area and/or said paper insertion chamber (4) is provided with a paper insertion depth adjusting mechanism, and a paper insertion depth The adjustment mechanism includes a driving mechanism and a paper feeding mechanism, and the driving mechanism is connected to the paper feeding mechanism.

The paper feeding mechanism includes a bottom of the paper insertion chamber (4) or an elevation pallet (3) disposed in the paper discharge area/paper insertion chamber (4); when the paper feed speed is adjusted, the driving mechanism drives the paper insertion chamber (4) ) or the lifting plate (3) ascending or descending.
A shredder according to an improved automatic paper feeding device according to claim 7, wherein said shredder is provided with detecting means for detecting the amount/thickness of paper entering the automatic paper feed path (5) Or the voltage/current of the shredded paper motor, and a detection value is sent to the control circuit; the input end of the control circuit is electrically connected to the detecting device, and the output end of the control circuit is electrically connected to the shredder motor and the winding paper motor respectively;

The shredder has a normal shredded paper state, an anti-overload limit paper feed and shred paper state, and an overload protection state.

In the normal shredded state, the control circuit controls the rotation of the winding paper motor, the rotation of the shredder motor, the rotation of the winding device, and the paper to be pulverized (1) is fed into the automatic paper feed path (5), and the shredder tool (6) is rotated. Carry out shredded paper;

The anti-overload limit feed paper shredder state, in the automatic paper feeding process, when the detection value received by the control circuit is greater than the set paper feed set value or work intensity set value, the control circuit controls the shredder to enter the overload prevention Limiting the state of paper feed and shredder, the control circuit controls the roll paper motor to stop, the shredder motor keeps rotating, the paper roll device stops the roll paper, and the shredder tool (6) keeps shredding;

In the anti-overload limit paper-feeding state, when the detection value received by the control circuit is less than the paper feed set value or the work intensity set value, the control circuit controls the shredder to enter the normal shredder state, and the control circuit controls the roll paper. The motor starts to rotate, the shredder motor keeps rotating, the winding device starts to roll paper, and the shredder tool (6) keeps shredding;

In the overload protection state, when the detection value received by the control circuit is greater than the overload threshold m, the control circuit controls the shredder to enter the overload protection state.
A paper shredder for an improved automatic paper feeding device according to claim 13, wherein said control circuit is provided with a control unit, and said control unit stores or sets said paper feed setting value and/or Working strength setting value;

The shredder is provided with a paper quantity/thickness detecting device for detecting the number or thickness of sheets entering the automatic paper feed path (5) and conveying a detection value to the control circuit, and/or a shredder A voltage/current detecting device is provided for detecting a voltage or current of the shredder motor and transmitting a detection value to the control circuit;

The automatic paper feed path (5) and the paper discharge area are respectively located on both sides of the paper roll device; the position of the paper roll device corresponds to the middle portion of the paper discharge area/paper to be pulverized (1), or the paper roll device is located The position corresponds at least to a position above the lower end of the paper discharge area/paper to be pulverized (1);

When the paper winding device starts to pick up the paper, the paper winding device starts to shake the paper to be pulverized (1) from the position or the middle portion above the lower end portion of the paper (1) to be pulverized, and first exits the paper discharge area at the lower end of the paper (1) to be pulverized. After the paper is turned over, the paper enters the automatic paper feed path (5).