CN216756675U - Paper shredder core capable of continuously shredding paper for multiple times and paper shredder - Google Patents

Abstract

The utility model discloses a paper shredding machine core capable of continuously shredding paper for multiple times, which comprises a paper shredding mechanism and a paper guide channel, wherein the paper shredding mechanism is arranged on the paper guide channel; the paper shredding mechanism comprises at least three paper shredding cutters which are sequentially arranged, the axial cores of the paper shredding cutters are staggered from top to bottom in the radial direction of the axial cores, adjacent paper shredding cutters are matched with each other to form paper shredding channels, and the adjacent paper shredding channels are sequentially communicated; the paper guide channel is arranged between two adjacent paper shredding channels and guides paper scraps of the previous paper shredding channel into the next paper shredding channel; the paper guide channel is arranged between two adjacent paper shredding channels and guides paper scraps of the previous paper shredding channel into the next paper shredding channel. Compared with the prior art, the paper shredder has the advantages of simple structure and small volume, and can repeatedly crush paper into fine security-grade paper scraps. The utility model also discloses a paper shredder.

Description

Paper shredder core capable of continuously shredding paper for multiple times and paper shredder

Technical Field

The utility model relates to the field of machinery, in particular to a paper shredding machine core capable of continuously shredding paper for multiple times.

Background

In order to improve the security of paper shredding and to make the shredded paper particles smaller, referring to chinese patent CN201820299995, the existing paper shredding cutter is provided with a plurality of groups of cutters which are arranged at intervals along a conveying channel, and each group of cutters comprises two groups of blades. Although continuous paper shredding can be carried out for multiple times in the mode, the structure is multiple, 2N groups of paper shredding blades are needed for N times of shredding, the cost is high, and two adjacent groups of paper shredding cutters are required to be arranged at a certain interval in the vertical direction, so that the occupied size is large.

Therefore, there is a need for a shredder mechanism that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a paper shredder core and a paper shredder which can continuously and repeatedly shred paper, have simple structure and small volume and repeatedly shred paper into fine security-grade paper scraps.

In order to achieve the purpose, the utility model discloses a paper shredding machine core capable of continuously shredding paper for multiple times, which comprises a paper shredding mechanism and a paper guide channel; the paper shredding mechanism comprises at least three paper shredding cutters which are sequentially arranged, the axial cores of the paper shredding cutters are staggered from top to bottom on the radial surfaces of the paper shredding cutters, adjacent paper shredding cutters are matched with each other to form paper shredding channels, adjacent paper shredding channels are sequentially communicated, adjacent paper shredding cutters are matched with each other to form paper shredding channels, and adjacent paper shredding channels are sequentially communicated; the paper guide channel is arranged between two adjacent paper shredding channels and guides paper scraps of the previous paper shredding channel into the next paper shredding channel.

Compared with the prior art, the paper shredding device has the advantages that the plurality of paper shredding cutters are sequentially arranged from top to bottom, and the paper shredding units with paper shredding channels and capable of shredding paper are respectively formed between every two adjacent paper shredding cutters, so that the paper shredding device can shred paper continuously for multiple times, and the confidentiality level is high. On the one hand, the shredded paper passageway of each shredded paper unit is certain contained angle for the horizontal direction for paper after the shredded paper can fall the next shredded paper passageway naturally, is difficult for the card paper. On the other hand, the paper shredding cutter in the middle of the paper shredding machine is a shared cutter of the previous paper shredding unit and the next paper shredding unit, and is simple in structure, space-saving and low in cost.

Preferably, an included angle between a connecting line of the axes of the adjacent paper shredding cutters and the vertical direction is greater than or equal to 20 degrees and less than or equal to 45 degrees.

More preferably, an included angle between the axis connecting line and the vertical direction is greater than or equal to 25 degrees and less than or equal to 40 degrees.

Preferably, the edge of the blade of the shredding cutter is serrated or has a plurality of cutting edges.

Preferably, the paper shredding cutters have the same structure, each paper shredding cutter comprises a cutter shaft and a plurality of blades formed on the cutter shaft, and the blades are respectively and fixedly installed on the cutter shaft at certain intervals along the axial direction.

Preferably, the paper shredder also comprises a paper guide frame arranged between two adjacent paper shredding channels, and a paper guide channel is formed between the paper guide frame and the paper shredding cutter.

Preferably, the paper guide frame includes last lateral wall and lower lateral wall, it is certain contained angle to go up lateral wall and lower lateral wall, just go up the lower extreme of lateral wall with the upper end of going up the lateral wall links to each other, butt or is neighbouring, in order to form between last lateral wall and the lower lateral wall and lead the paper corner, it is preceding to lead the paper corner the export of shredded paper passageway, just the lateral wall is relative with the former one the exit position of shredded paper passageway, its end is neighbouring the latter the blade of the shredded paper cutter outside the shredded paper passageway, in order to with the former one the wastepaper of shredded paper passageway output is leading-in the latter shredded paper passageway.

Specifically, the distance between the tail end of the lower side wall and the rotation track of the tail end of the blade of the paper shredding cutter outside the paper shredding channel is within a preset range.

More specifically, the pitch is greater than 0 and equal to or less than 5 mm.

Preferably, the paper guide frame is rotatably mounted on a frame and can rotate to a first position and a second position relative to the shredding cutter, the first position is that the tail end of the paper guide frame is close to the inlet of the next shredding channel, and the shredded paper output by the previous shredding channel is guided into the next shredding channel; and the front end of the paper guide frame at the second position is close to the lower side of the outlet of the previous shredded paper channel, and the shredded paper output by the previous shredded paper channel is guided out of the shredded paper mechanism.

Specifically, the paper guide frame is a paper guide plate rotatably mounted on the frame, the inner side surface of the paper guide plate at a first position is opposite to the outlet of the previous paper shredding channel, and the tail end of the paper guide plate is close to the inlet of the next paper shredding channel; and the second position is that the front end of the outer side surface of the paper guide plate is close to the front side of the outlet of the paper shredding channel, and the outer side surface of the paper guide plate forms the paper guide channel for guiding the front shredded paper output by the paper shredding channel to the outside of the paper shredding mechanism.

Drawings

FIG. 1 is a perspective view of a shredder according to a first embodiment of the present invention.

FIG. 2 is a schematic view of a part of a shredder according to a first embodiment of the present invention.

Fig. 3 is a schematic view showing the connection of the shredder blade and the paper guide in the first embodiment of the present invention.

Fig. 4 and 5 are schematic views of a part of a shredder according to a second embodiment of the present invention.

FIG. 6 is a schematic view of a portion of a shredder according to a third embodiment of the present invention.

FIG. 7 is a schematic diagram of a portion of a shredder according to a preferred embodiment of the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1-3, the present invention discloses a shredder 100 for shredding paper or other sheet-like media in a continuous multiple shredding process. This kneader 100 includes the shredding mechanism and leads paper passageway 20, and the shredding mechanism includes at least three shredding cutter 10 of arranging in proper order, the axle center of shredding cutter 10 is from last to controlling crisscross setting when setting gradually down on the radial surface, and is adjacent shredding cutter 10 mutually supports in order to smash paper or other thin slice class media. A shredding passage is formed adjacent to the shredding cutter 10. The paper guide channel 20 is disposed between two adjacent paper shredding channels, and guides paper scraps of a previous paper shredding channel into a subsequent paper shredding channel.

Referring to fig. 2 and 3, the axial core of the shredding cutter 10 is arranged from top to bottom in proper order on the radial surface and is left right staggered so that the axial core connecting line of the axial core of the cutter shaft 11 of the shredding cutter 10 is inclined relative to the vertical direction, and the other two shredding cutters 10 adjacent to the shredding cutter 10 at the intermediate position are respectively located at the intermediate position on the same side of the shredding cutter 10 so as to be adjacent to each other the shredding channel is communicated in proper order, and the inclination directions of the adjacent shredding channels are opposite relative to the vertical direction.

Referring to fig. 2 and 3, each of the shredder blades 10 includes a cutter shaft 11 and a blade 12 formed on the cutter shaft 11. In the XYZ coordinate system of fig. 2, the axial direction of the cutter shaft 11 is set in the Y-axis direction. Wherein, the knife shafts 11 of the adjacent shredding knife tools 10 are opposite to each other in YZ coordinate plane (plane parallel to the axial direction) to form a shredding unit, and mutually cooperate to shred paper. The projection or radial cross section of the knife shaft 11 of the shredding knife 10 on the XZ coordinate plane (radial plane, parallel to the radial direction of the knife shaft 11) is staggered from top to bottom while being arranged in sequence, the up-down direction is the vertical direction, i.e., the Z-axis direction, and the left-right direction is the horizontal direction, i.e., the X-axis direction.

The arrows in fig. 2 and 3 indicate the direction of sheet shredding conveyance.

Wherein the shredder 100 further comprises a frame 201, a driving mechanism 202 and a driving gear set 203, and the shredding cutter 10 is mounted on the frame 201 to cause the channel 201 to be formed or fixed on the frame 201. The driving mechanism 202 is connected to the shredding cutter 10 through the transmission gear set 203, and drives the adjacent shredding cutters 10 to rotate relatively to shred paper. The paper guide path 20 has two.

Referring to fig. 2, the shredder 100 further comprises a paper separating frame, and a paper separating sheet 204 of the paper separating frame extends into and separates between two adjacent blades 12.

In the embodiment, there are four shredding cutters 10, and three shredding channels 301, 302, 303 are sequentially formed between adjacent shredding cutters 10. Referring to fig. 2, the shredding passage 301 is inclined to the left with respect to the vertical direction, the shredding passage 302 is inclined to the right with respect to the vertical direction, and the shredding passage 303 is inclined to the left with respect to the vertical direction. The outlet of the shredding channel 301 is located on the same side (left side in fig. 2) as the inlet of the shredding channel 302 as the second shredding cutter 10, and the outlet of the shredding channel 302 is located on the same side (right side) as the inlet of the shredding channel 303 as the third shredding cutter 10.

In operation, a paper enters the shredding channel 301 formed between the first shredding cutter 10 and the second shredding cutter 10 from the inlet, is shredded to a first size of shredded particles or strips through the shredding channel 301, is output from the shredding channel 301 and enters the shredding channel 302 formed between the second shredding cutter 10 and the third shredding cutter 10 along the paper guide channel 20, is shredded to a second size of shredded particles, is output from the shredding channel 302 and enters the shredding channel 303 running between the third shredding cutter 10 and the fourth shredding cutter 10 along the other paper guide channel 20, and is shredded to a third size of paper shreds by the shredding channel 303, the first size being larger than the second size and larger than the third size. Of course, the number of the shredding cutters 10 may also be 3, 5, etc.

The shredder 100 also includes a housing having a paper inlet formed therein and a paper feed chute formed between the paper inlet and the shredding mechanism. The paper feed path is formed between the paper feed opening and the entrance of the shredder path 301.

Referring to fig. 3, in the radial surface of the shredding cutter 10, an included angle between a line connecting the axes of adjacent shredding cutters 10 and the vertical direction is not less than 20 degrees and not more than 45 degrees. More preferably, an included angle between the axis connecting line and the vertical direction is greater than or equal to 25 degrees and less than or equal to 40 degrees. In this embodiment, an angle between each axis connecting line and the vertical direction is 25 degrees. The included angle between the axis connecting line and the vertical direction can be other angles. The included angles between the connecting lines of the plurality of shaft cores and the vertical direction can also be different.

Referring to fig. 3, the angle between the sheet feeding direction of the previous shredding pass 301, 302 and the sheet feeding direction of the subsequent shredding pass 302, 303 is less than 90 degrees and greater than 40 degrees, preferably 50-80 degrees.

In this embodiment, the edge of the blade 12 of the shredding cutter 10 is serrated, the first shredding channel 301 can shred the paper into long strips, and the shredding channel 302 shreds the paper into smaller particles, i.e., the shredding channel 303.

In this embodiment, the four paper shredding cutters 10 have the same structure, and the plurality of blades 12 are respectively and fixedly mounted on the cutter shaft 11 along the axial direction at a certain interval. Of course, the shredding cutter may also be a spiral cutter, an integrated shredding cutter, or other shredding cutters, and is not limited to the embodiment. In this embodiment, the blade 12 is serrated to form a plurality of tips 13.

Referring to fig. 1 to 3, the shredder 100 further includes paper guides 21 and 22 disposed between two adjacent shredding chutes, and a paper guide 20 is formed between the paper guide 21 and the shredding cutter 10.

Referring to fig. 2 and 3, paper guide frame 21 includes last lateral wall 211 and lower lateral wall 212, it is certain contained angle to go up lateral wall 211 and lower lateral wall 212, just the lower extreme of going up lateral wall 211 with the upper end of going up lateral wall 212 links to each other, so that it leads paper corner 213 to form between last lateral wall 211 and the lower lateral wall 212, it is preceding to lead paper corner 213 towards the export of shredded paper passageway 301, just it is relative with the former one to go out the export position of shredded paper passageway 301, its end is close to the latter one the blade 12 of shredded paper cutter 10 outside shredded paper passageway 302, in order to be the former one the shredded paper passageway 302 of leading-in back of the wastepaper that shredded paper passageway 301 exported.

Referring to fig. 2 and 3, the paper guide frame 22 is a paper guide plate including an upper side plate and a lower side plate, an inner side surface of the upper side plate is an upper side wall, and an inner side surface of the lower side plate is a lower side wall. Go up lateral wall 221 and lower lateral wall 222 and be certain contained angle, just the lower extreme of going up lateral wall 221 with the upper end of going up lateral wall 222 links to each other, in order to go up and form between lateral wall 221 and the lower lateral wall 222 and lead paper corner 223, it leads paper corner 223 towards the former the export of shredded paper passageway 302, just down lateral wall 222 and the former the export position of shredded paper passageway 302 is relative, and its end is close to the latter the blade 12 of shredded paper cutter 10 outside shredded paper passageway 303, in order to be the former the wastepaper that shredded paper passageway 302 exported leads to the latter shredded paper passageway 303.

Of course, the upper sidewalls 211, 221 and the lower sidewalls 212, 222 may also be disposed in abutting or adjacent relation.

In this embodiment, the inner side surfaces of the paper guides 21 and 22 are bent surfaces. Of course, the inner side surfaces of the paper guides 21 and 22 may be curved surfaces or flat surfaces.

Referring to fig. 3, the distance d between the ends of the lower side walls 212 and 222 and the rotation path of the ends (outermost edges) of the blades 12 of the shredder cutters 10 outside the shredding passages 302 and 303 is within a predetermined range. Wherein the distance d is greater than 0 and less than or equal to 5 mm. The blade 12 is convexly provided with a blade tip 13, and the rotation track of the tail end of the blade is the rotation track of the tail end of the blade tip 13.

Preferably, referring to fig. 7, the end of the paper guide frame 22 near the rear paper shredding channel may also be provided with a paper guide protrusion 224 that can extend into the gap between the adjacent blades 12, and the end of the paper guide frame 21 near the rear paper shredding channel may also be provided with a paper guide protrusion 214 that can extend into the gap between the adjacent blades 12, so as to prevent paper scraps from falling to the outside (the side away from the paper shredding channel) of the paper shredding cutter. Preferably, the end of the paper guide protrusion is wedge-shaped or arc-shaped to prevent paper jam. More preferably, the end of the paper guide tooth is adjacent to the paper 204 with a gap from the paper 204.

Referring to fig. 4 and 5, a second embodiment of the present invention discloses another shredder 100b, which is different from the first embodiment, in the shredder 100b, one of the paper guide frames 21a is rotatably mounted on a frame and can rotate to a first position and a second position relative to the shredding cutter 10. Referring to fig. 5, in the first position, the end of the paper guide 21a is adjacent to the inlet of the succeeding shredding passage 302, and the shredded paper output from the preceding shredding passage 301 is guided into the succeeding shredding passage 302. Referring to fig. 5, in the second position, the front end of the paper guide 21a is adjacent to the lower side of the outlet of the previous shredding channel 301, and guides shredded paper output from the previous shredding channel 301 to the outside of the shredding mechanism. In this embodiment, at the second position, the paper guide 21a guides the shredded paper output from the previous shredded paper path 301 to the shredded paper box. The paper shredding box is positioned below the paper shredding mechanism.

The arrows in fig. 2 and 3 indicate the direction of sheet shredding conveyance.

Referring to fig. 4 and 5, the paper guide frame 21a is a paper guide plate 21a rotatably mounted on the frame, and in the first position, the inner side surface of the paper guide plate 21a is opposite to the outlet of the previous shredding channel 301, and the end of the paper guide plate 21a is adjacent to the inlet of the next shredding channel 302; the front end of the outer side surface of the second paper guide plate 21a is close to the lower side of the outlet of the previous shredded paper channel 301, and the paper guide channel is formed on the outer side surface and guides shredded paper output by the previous shredded paper channel 301 to the outside of the shredding mechanism.

In operation, when the paper guide 21a is in the first position, three successive shredding operations can be performed, and when the paper guide 21a is in the second position, only one shredding operation is performed.

Based on or different from the above embodiment, in another preferred embodiment, the paper guide 22a between the paper shredding passage 302 and the paper shredding passage 303 may be rotatably mounted on the frame and may be rotated to the corresponding first position and second position, when both the paper guides 22a and 21a are located at the first position, the paper shredding mechanism may shred three times, when the paper guide 21a is located at the first position, and when the paper guide 22a is located at the second position, two times of continuous shredding may be performed.

The paper shredding times of the paper shredding mechanism can be adjusted through the position of the rotatable paper guide frame, the selection is flexible, and when secret smashing is not needed or objects such as compact discs are smashed, the paper shredding mechanism can be controlled to reduce the continuous paper shredding times, and the power consumption is reduced.

Referring to fig. 6, a third embodiment of the present invention discloses another shredder 100c, which is different from the first embodiment, in which at least two paper inlets 41, 42 are formed on the housing 40 of the shredder 100c, wherein one of the paper inlets 41 is connected to the first shredding lane 301, and the other paper inlet 42 is connected to the 2 nd or nth shredding lane, and in this embodiment, the paper inlet 42 is connected to the third shredding lane 303. A paper feeding channel is formed between the paper feeding port 41 and the shredding channel 301, and a paper feeding channel is formed between the paper feeding port 42 and the shredding channel 303.

When the paper shredder is used by a user, the sheet media to be shredded can be fed from the paper inlet 41 for three times of continuous paper shredding; the sheet medium to be shredded may be fed from the paper inlet 42 and may be shredded once.

Preferably, the housing 40 may be provided with a paper inlet 43 communicating with the shredding passage 302, and in use, the sheet-like medium to be shredded is fed from the paper inlet 43 to be shredded twice.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims (11)

1. The utility model provides a but shredded paper core of continuous many times shredded paper which characterized in that: comprises a paper shredding mechanism and a paper guide channel;

the paper shredding mechanism comprises at least three paper shredding cutters which are sequentially arranged, the axial cores of the paper shredding cutters are staggered from top to bottom in the radial direction of the axial cores, adjacent paper shredding cutters are matched with each other to form paper shredding channels, and the adjacent paper shredding channels are sequentially communicated;

the paper guide channel is arranged between two adjacent paper shredding channels and guides paper scraps of the previous paper shredding channel into the next paper shredding channel.

2. The shredder mechanism according to claim 1, wherein: and the included angle between the radial surface of the adjacent paper shredding cutter and the vertical direction of the axis connecting line of the adjacent paper shredding cutter is more than or equal to 20 degrees and less than or equal to 45 degrees.

3. The shredder mechanism according to claim 2, wherein: and an included angle between the axis connecting line and the vertical direction is more than or equal to 25 degrees and less than or equal to 40 degrees.

4. The shredder mechanism according to claim 1, wherein: the paper shredding cutter is identical in structure, each paper shredding cutter comprises a cutter shaft and blades formed on the cutter shaft, and the blades are provided with a plurality of blades which are fixedly arranged on the cutter shaft at certain intervals along the axial direction.

5. The shredder mechanism according to claim 1, wherein: the paper guide device is characterized by further comprising a paper guide frame arranged between every two adjacent paper shredding channels, and the paper guide frame and the paper shredding cutter form the paper guide channels.

6. The shredder mechanism according to claim 5, wherein: the paper guide frame comprises a straight paper guide side wall or a bent paper guide side wall, and a paper guide channel is formed between the paper guide side wall and the paper shredding cutter.

7. The shredder mechanism according to claim 6, wherein: and the distance between the tail end of the paper guide side wall and the tail end rotating track of the blade of the paper shredding cutter outside the paper shredding channel is within a preset range.

8. The shredder mechanism according to claim 7, wherein: the distance is greater than 0 and less than or equal to 5 mm.

9. The shredder mechanism according to claim 5, wherein: the paper guide frame is rotatably arranged on a rack and can rotate to a first position and a second position relative to the paper shredding cutter, the tail end of the paper guide frame at the first position is close to the inlet of the next paper shredding channel, and shredded paper output by the previous paper shredding channel is guided into the next paper shredding channel; the front end of the paper guide frame at the second position is close to the lower side of the outlet of the previous paper shredding channel, and the paper shredding channel outputs paper shreds which are guided to the outside of the paper shredding mechanism.

10. The shredder mechanism according to claim 9, wherein: the paper guide frame is a paper guide plate which is rotatably arranged on the rack, the inner side surface of the paper guide plate at a first position is opposite to the outlet of the previous paper shredding channel, and the tail end of the paper guide plate is close to the inlet of the next paper shredding channel; and the second position is that the front end of the outer side surface of the paper guide plate is close to the front side of the outlet of the paper shredding channel, and the outer side surface forms the paper guide channel which guides the front paper shredded output by the paper shredding channel to the outside of the paper shredding mechanism.

11. A paper shredder comprises a shell and a paper shredding machine core installed in the shell, and is characterized in that: the shredder core is as claimed in any one of claims 1 to 10, a paper inlet is formed on the housing, and a paper inlet channel is formed between the paper inlet and the inlet of the shredder channel.

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