CN112642552A - Paper pressing mechanism and drawer type paper shredder with same - Google Patents
Paper pressing mechanism and drawer type paper shredder with same Download PDFInfo
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- CN112642552A CN112642552A CN202011613074.4A CN202011613074A CN112642552A CN 112642552 A CN112642552 A CN 112642552A CN 202011613074 A CN202011613074 A CN 202011613074A CN 112642552 A CN112642552 A CN 112642552A
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- 238000003825 pressing Methods 0.000 title claims abstract description 69
- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 239000010893 paper waste Substances 0.000 claims abstract description 77
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 230000004323 axial length Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/22—Feed or discharge means
- B02C18/2225—Feed means
- B02C18/2283—Feed means using rollers
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention relates to a paper pressing mechanism and a drawer type paper shredder applying the paper pressing mechanism, wherein the paper pressing mechanism comprises a front roll shaft, a rear roll shaft, a pressing plate and an adjusting mechanism, wherein the front roll shaft is rotatably arranged above a paper inlet of the paper shredder and is used for limiting the front edge of waste paper and preventing the front edge of the waste paper from floating upwards; the rear roller shaft is rotatably provided at the rear side of the front roller shaft and disposed near the rear edge of the paper feed opening, and is used for being pressed against the waste paper to prevent the waste paper from retreating. The invention provides a drawer type paper shredder, which can place a plurality of pieces of paper in a drawer at one time, continuously shred a large amount of waste paper under the condition of saving time and labor and is convenient to use; the front edge of the waste paper is pressed and held by the front roller shaft, the front edge of the waste paper is prevented from floating in the paper feeding process, the middle of the waste paper is pressed and held by the rear roller shaft, the waste paper is prevented from retreating in the paper feeding process, the stable and smooth transmission of the paper is realized, the phenomenon that the machine core is blocked due to excessive paper feeding in one time is avoided, and the reliability is good.
Description
Technical Field
The invention relates to the technical field of paper shredders, in particular to a paper pressing mechanism and a drawer type paper shredder with the paper pressing mechanism.
Background
The paper shredder is a common office equipment, mainly puts the waste paper between the pair roller of the paper shredder core, rotates the pair roller to shred the waste paper document. The paper shredder can only put a small amount of paper at the paper inlet at one time, and if too much paper is put in the paper shredder, paper jam is easily caused, and the paper shredder is even damaged. Therefore, when a large amount of paper needs to be crushed, the paper can only be manually put into the paper inlet for multiple times, the operation is time-consuming and labor-consuming, and great inconvenience is brought to a user.
In order to solve the above problems, the chinese utility model patent "a shredder with automatic paper feeding" (application No. CN201720812594.5), entitled publication No. CN206868376U, discloses a structure, which comprises a shredder body, a frame, a core roller pair and a paper shredding box arranged in the shredder body, wherein the core roller pair is positioned in the frame, the paper shredding box is positioned under the core roller pair, the frame is provided with a paper feeding port for feeding waste paper between the core roller pair, the structure further comprises a paper feeding mechanism positioned above the core roller pair and a paper pressing mechanism positioned in the paper shredding box, the paper feeding mechanism comprises a placing groove and a motor, and the placing groove is provided with a paper outlet corresponding to the paper feeding port of the frame; one side in the placing groove is provided with a support plate which is obliquely arranged, and one side of the paper outlet is aligned with the support plate; a pressure plate is connected in the placing groove in a sliding manner, the pressure plate is parallel to the support plate, and an elastic piece is arranged between the inner wall of the placing groove far away from one side of the support plate and the pressure plate; the supporting plate is provided with a plurality of through grooves, rolling shafts are arranged outside the supporting plate and positioned at the through grooves, compression rollers are fixed outside the rolling shafts, and the outer walls of the compression rollers extend into the through grooves to be aligned with the inner walls of the supporting plate; the motor is fixed outside the placing groove, and an output shaft of the motor is connected with the rolling shaft through a transmission belt; the paper pressing mechanism comprises a piston column, a plurality of supporting rods and a plurality of pressing rods, a communicated cavity is formed in the bottom of the shredded paper box, cavity channels communicated with the cavity are formed in the inner wall of the shredded paper box, and the number of the cavity channels is the same as that of the supporting rods; the piston column is connected in the cavity in a sealing and sliding manner, the support rod is vertical to the inner wall of the shredded paper box, and the lower end of the pressure rod is positioned in the cavity and hinged with the upper end of the support rod.
The paper shredder can place a large amount of waste paper in the placing groove at one time, and paper is conveyed through the paper feeding mechanism to automatically shred the paper, so that time and labor are saved. However, since the placing grooves are arranged obliquely and vertically, after the waste paper is placed in the placing grooves, the waste paper tends to slide downwards due to gravity, if the pressure given by the pressing plates to the paper is too large, smooth conveying of the waste paper is difficult to realize, and if the pressure given by the pressing plates to the paper is too small, a plurality of pieces of waste paper fall simultaneously to block the movement due to accommodation.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a paper pressing mechanism which can stably and smoothly convey paper and avoid the jam of a cassette mechanism, aiming at the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a drawer type shredder with the paper pressing mechanism, which can continuously shred a plurality of waste papers to save time and labor, aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving at least one technical problem is as follows: a paper pressing mechanism for a paper shredder having a used paper storing area above a paper feed opening, comprising
The front roll shaft can be rotatably arranged above the paper inlet of the paper shredder and is used for limiting the front edge of the waste paper and preventing the front edge of the waste paper from floating upwards;
the rear roll shaft is rotatably arranged at the rear side of the front roll shaft, is arranged close to the rear edge of the paper inlet and is used for pressing and holding the waste paper so as to prevent the waste paper from retreating;
the pressing plate is arranged above the front roller shaft and the rear roller shaft, the front edge of the pressing plate is rotatably connected with the front roller shaft and the rear roller shaft, and the rear edge of the pressing plate can be rotatably supported above the waste paper storage area;
under the action of self weight, the pressing plate is turned downwards and enables the front roll shaft and the rear roll shaft to be in a downward pressing state; and under the action of upward force on the front roll shaft and/or the rear roll shaft, the pressing plate turns upwards and the front roll shaft and the rear roll shaft are lifted upwards.
In the above aspect, the rear portion of the platen is rotatably supported above the used paper storage area, the front roller shaft and the rear roller shaft extend in the left-right direction and are arranged in parallel in the front-rear direction, and the front edge of the platen is rotatably connected to the end portion of the front roller shaft and the end portion of the rear roller shaft through the rotating arm, respectively. By adopting the structure, the press plate can be conveniently driven to turn back and forth by taking the rear edge as a rotating shaft, so that the front roller shaft and the rear roller shaft are driven to move up and down, and the paper pressing state is switched.
Preferably, the rotating arm extends forwards and backwards, the front end of the rotating arm is rotatably connected with the end part of the front roller shaft, and the rear end of the rotating arm is rotatably connected with the end part of the rear roller shaft, so that the heights of the front roller shaft and the rear roller shaft can be automatically adjusted according to different stresses. Because under the shredded paper state, the preceding roller is only to exerting pressure to the front edge of waste paper, and then the whole pressure of roller is held on waste paper, when waste paper thickness is great, the height of preceding roller may be less than the height of back roller, adopt above-mentioned swing joint structure, be favorable to according to the height of roller and back roller before waste paper thickness automatic adjustment, make preceding roller offset with the front edge of waste paper all the time, the back roller compresses tightly on waste paper all the time, thereby can prevent that the front edge of waste paper from floating all the time, prevent that waste paper is retreating, be favorable to improving the conveying stability of paper.
In order to facilitate assembly and connection, a first connecting arm extending downwards is arranged at the position, close to the end, of the front edge of the pressing plate, a second connecting arm is formed in the middle of the rotating arm in a protruding mode, and the first connecting arm and the second connecting arm are connected in a rotating mode through matching of a shaft and the hole.
Preferably, the both sides of waste paper storage area are provided with the supporting seat of vertical extension, and it has the shaft hole that corresponds the clamp plate and arrange to open on this supporting seat, the clamp plate is provided with the connecting axle that can rotate the connection with this shaft hole in the side edge department that is close to the rear end, thereby the clamp plate is the state of backward slope gradually downwards forward from the junction of first linking arm and second linking arm with the junction of supporting seat higher than. By adopting the structure, the pressing plate, the front roller shaft and the rear roller shaft are beneficial to always keeping the state of pressing and holding the waste paper downwards through self gravity, thereby keeping the paper pressing effect.
In the invention, the outer peripheral wall of the front roller shaft and/or the outer peripheral wall of the rear roller shaft close to the end part are/is concavely provided with sliding grooves arranged along the circumferential direction, and driving parts which can drive the front roller shaft and/or the rear roller shaft to move up and down in a matched manner with the sliding grooves in a paper shredding state are arranged on two sides of the waste paper storage area.
The drawer type paper shredder with the paper pressing mechanism comprises a body, a paper shredding cutter, a paper feeding wheel and the paper pressing mechanism, wherein the body is provided with a drawer which can be drawn out from the front side of the body and is used for storing waste paper, the inner space of the drawer forms a waste paper storage area, the paper feeding port is formed in the bottom wall of the front portion of the drawer, the paper shredding cutter is arranged in the body and located below the drawer and is arranged corresponding to the paper feeding port, the paper pressing mechanism is arranged above the drawer, and the paper feeding wheel can be rotatably arranged at the bottom of the drawer and the upper portion of the paper feeding wheel is exposed out of the front edge of the paper feeding port. In a state where the drawer is completely pushed into the body, the used paper is placed in the drawer and located on the rear side of the paper feed opening, the front portion of the used paper is projected forward to cover a part of the paper feed opening, the front edge of the used paper is in contact with the rear side edge of the feed roller, the front roller shaft is located above the feed roller and is arranged slightly rearward, and the front roller shaft, in a state where the front edge of the used paper can be pressed, also keeps the front edge of the used paper in contact with the feed roller, thereby realizing stable conveyance of the used paper.
Preferably, the axial length of preceding roller, back roller is greater than the width of drawer, thereby it gives way the mouth to open on the side bounding wall of drawer and supply preceding roller, the whereabouts pressure of back roller to hold waste paper.
In the invention, the side wall plate of the drawer forms the driving piece, the sliding groove is in rolling fit with the upper edge of the side wall plate of the drawer, the side wall plate of the drawer is provided with a guide groove for the front roller shaft and/or the rear roller shaft to descend, the rear edge of the guide groove gradually extends upwards from front to back to form a guide slope, and the upper end of the guide slope is smoothly connected with the upper edge of the side wall plate of the drawer. When the drawer is pulled out of the body, the front roller shaft and/or the rear roller shaft slide to the top edge of the side coaming of the drawer from the guide groove along the guide slope through the sliding groove, and the front roller shaft and the rear roller shaft are lifted, so that paper can be added conveniently; in the process that waste paper is filled in the drawer and pushed into the body, the front roller shaft and/or the rear roller shaft gradually slide into the guide groove along the top edge and the guide slope of the side enclosing plate of the drawer, after the drawer is completely pushed into the body, the front roller shaft and the rear roller shaft fall along the front side of the pressing plate and are pressed and held on the waste paper, the paper is pressed at the front edge of the waste paper by the front roller shaft, and the paper is pressed at the middle part of the waste paper by the rear roller shaft, so that stable paper feeding is realized.
Preferably, the top of the body is provided with a cover plate capable of covering the paper pressing mechanism, the rear edge of the cover plate is rotatably connected to the body, and the cover plate is provided with a paper feeding port arranged corresponding to the paper feeding port. When the quantity of the needed paper shredding is small, for example, less than three paper shredding machines, the waste paper can be directly fed from the paper feeding port to shred the paper without adopting a drawer.
Compared with the prior art, the invention has the advantages that: the invention provides a drawer type paper shredder, which can place a plurality of pieces of paper in a drawer at one time, thereby continuously shredding a large amount of waste paper under the condition of saving time and labor and being convenient to use; the front edge of the waste paper is pressed and held by the front roller shaft of the paper pressing mechanism, so that the front edge of the waste paper is prevented from floating in the paper feeding process, the middle part of the waste paper is pressed and held by the rear roller shaft, the waste paper is prevented from retreating in the paper feeding process, the stable and smooth transmission of the paper is realized, the phenomenon that the machine core is blocked due to excessive paper feeding at one time is avoided, and the reliability is good.
Drawings
FIG. 1 is a schematic view of a shredder according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 (shredded state);
FIG. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a schematic structural view (non-shredded state) of an embodiment of the present invention;
fig. 5 is a partial structural schematic diagram of fig. 4.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example 1:
as shown in fig. 1 to 5, the present embodiment provides a drawer-type automatic continuous shredder, which is provided with a paper pressing mechanism to maintain the stability and smoothness of continuous paper feeding.
The drawer type paper shredder of the embodiment comprises a body 2, a paper shredding knife 3, a paper feeding wheel 4 and a paper pressing mechanism 1. The body 2 is provided with a drawer 5 which can be drawn out from the front side of the body 2 and is used for storing waste paper, the front side of the drawer 5 is provided with a handle, the edge of the side part of the drawer 5 is provided with a side coaming, the inner space of the drawer 5 forms a waste paper storage area 51, and the bottom wall of the front part of the drawer 5 is provided with a paper inlet 52. The shredder blade 3 is provided in the body 2 below the drawer 5 and is disposed corresponding to the paper feed opening 52. The paper pressing mechanism 1 is arranged above the drawer 5, the paper feeding wheel 4 is rotatably arranged at the bottom of the drawer 5, the upper part of the paper feeding wheel is exposed at the front edge of the paper feeding port 52, and the paper feeding wheel 4 rotates backwards under the driving of the gear set and the driving motor.
In the embodiment, the paper pressing mechanism 1 comprises a front roller shaft 11, a rear roller shaft 12 and a pressing plate 13, wherein the front roller shaft 11 is rotatably arranged above the paper feeding port 52 and used for limiting the front edge of the waste paper and preventing the front edge of the waste paper from floating upwards; the rear roller shaft 12 is rotatably provided on the rear side of the front roller shaft 11 and disposed near the rear edge of the paper feed port 52 for pressing against the used paper to prevent it from receding. The pressing plate 13 is arranged above the front roller shaft 11 and the rear roller shaft 12, the front edge of the pressing plate 13 is rotatably connected with the front roller shaft 11 and the rear roller shaft 12, and the rear edge of the pressing plate 13 is rotatably supported above the waste paper storage area 51; under the action of self weight, the pressing plate 13 turns downwards and enables the front roller shaft 11 and the rear roller shaft 12 to be in a downward pressing state; when the front roller shaft 11 and the rear roller shaft 12 are subjected to an upward force, the platen 13 is turned upward, and the front roller shaft 11 and the rear roller shaft 12 are lifted upward.
Specifically, the rear portion of the platen 13 is rotatably supported above the used paper storage area 51, the front roller shaft 11 and the rear roller shaft 12 extend right and left and are arranged in parallel front and rear, and the front edge of the platen 13 is rotatably connected to the end portion of the front roller shaft 11 and the end portion of the rear roller shaft 12 by a rotating arm 131. With the structure, the pressing plate 13 can be driven to turn back and forth by taking the rear edge as a rotating shaft, so that the front roller shaft 11 and the rear roller shaft 12 are driven to move up and down, and the paper pressing state is switched.
The rotating arm 131 extends back and forth, the front end of the rotating arm 131 is rotatably connected with the end of the front roller shaft 11, and the rear end of the rotating arm 131 is rotatably connected with the end of the rear roller shaft 12, so that the heights of the front roller shaft 11 and the rear roller shaft 12 can be automatically adjusted according to different forces. Because under the shredded paper state, preceding roller 11 is only to exerting pressure to the leading edge of waste paper, and back roller 12 is whole to be pressed and is held on waste paper, when waste paper thickness is great, the height of preceding roller 11 may be less than the height of back roller 12, adopt above-mentioned swing joint structure, be favorable to according to waste paper thickness automatic adjustment preceding roller 11 with back roller 12's height, make preceding roller 11 offset with the leading edge of waste paper all the time, back roller 12 compresses tightly on waste paper all the time, thereby can prevent that the leading edge of waste paper from floating all the time, prevent that waste paper is retreating, be favorable to improving the conveying stability of paper.
For the convenience of assembly and connection, the front edge of the pressing plate 13 is provided with a first connecting arm 132 extending downward near the end, the middle of the rotating arm 131 is formed with a second connecting arm 1311 protruding upward, and the first connecting arm 132 and the second connecting arm 1311 are rotatably connected through the matching of a shaft and a hole.
The two sides of the used paper storage area 51 are provided with vertically extending supporting bases 6, the supporting bases 6 are provided with shaft holes 61 arranged corresponding to the pressing plates 13, the side edges of the pressing plates 13 near the rear ends are provided with connecting shafts 133 capable of being rotatably connected with the shaft holes 61, and the connecting positions of the pressing plates 13 and the supporting bases 6 are higher than the connecting positions of the first connecting arms 132 and the second connecting arms 1311, so that the pressing plates 13 are in a state of gradually inclining downwards from back to front. With the above structure, the pressing plate 13, the front roller shaft 11 and the rear roller shaft 12 are kept in a state of pressing and holding the waste paper downward all the time by their own weight, thereby maintaining the paper pressing effect.
The outer peripheral walls of the front roller shaft 11 and the rear roller shaft 12 near the ends are provided with sliding grooves 10 arranged along the circumferential direction in a concave manner, and driving members capable of driving the front roller shaft 11 and the rear roller shaft 12 to move up and down in a matched manner with the sliding grooves 10 in a paper shredding state are arranged on two sides of the used paper storage area 51.
The axial length of the front roller shaft 11 and the rear roller shaft 12 of the embodiment is larger than the width of the drawer 5, and the side coaming of the drawer 5 is provided with a yielding opening 54 for the front roller shaft 11 and the rear roller shaft 12 to fall down so as to press and hold waste paper. The side panels 50 of the drawer 5 constitute the aforementioned drive members and the runners 10 are in rolling engagement with the upper edges of the side panels 50 of the drawer 5. The two yielding openings 54 are arranged, the yielding opening 54 at the front side is arranged corresponding to the front roller shaft 11, the yielding opening at the rear side is arranged corresponding to the rear roller shaft 12 and forms a guide groove 55, the rear edge of the guide groove 55 gradually extends upwards from front to rear to form a first guide slope 551, and the upper end of the first guide slope 551 is smoothly connected with the upper edge of the enclosing plate 50 at the drawer 5 side. The front edge of the guide groove 55 gradually extends downwards from front to back to form a second guide slope 552, the guide groove 55 smoothly transitions with the receding port 54 at the front side thereof, and the rear edge of the receding port 54 gradually extends upwards from front to back to form a third guide slope 541.
When the drawer 5 is pulled out from the body 2, the front roller shaft 11 and the rear roller shaft 12 slide to the top edge of the drawer side enclosing plate 50 from the abdicating opening 54 and the guide groove 55 along the guide slope through the sliding groove 10, so that the front roller shaft 11 and the rear roller shaft 12 are lifted, and paper feeding is facilitated; in the process of loading waste paper in the drawer 5 and pushing the waste paper into the body 2, the front roller shaft 11 and the rear roller shaft 12 gradually slide to the relief opening 54 and the guide groove 55 along the top edge of the drawer side enclosing plate 50, after the drawer 5 is completely pushed into the body 2, the front roller shaft 11 and the rear roller shaft 12 fall along the front side of the pressing plate 13 and are pressed on the waste paper, the front roller shaft 11 presses the paper at the front edge of the waste paper, and the rear roller shaft 12 presses the paper in the middle of the waste paper, so that stable paper feeding is realized.
The top of the body 2 is provided with a cover plate 7 capable of covering the paper pressing mechanism 1, the rear edge of the cover plate 7 is rotatably connected to the body 2, and the cover plate 7 is provided with a paper feeding port 71 arranged corresponding to the paper feeding port 52. When the number of paper shreds is small, for example, less than three paper shreds, the waste paper can be directly fed from the paper feed port 71 to be shredded without using the drawer 5. The cover plate 7 is opened to inspect and maintain the paper pressing mechanism 1 for simple obstacles.
In a state where the drawer 5 is completely pushed into the body 2, the used paper is placed in the drawer 5 and located at the rear side of the paper feed opening 52, the front portion of the used paper is projected forward to cover a part of the paper feed opening 52, the front edge of the used paper is in contact with the rear side edge of the feed roller 4, the front roller shaft 11 is located above the feed roller 4 and is arranged slightly rearward, and the front roller shaft 11 also keeps the front edge of the used paper in contact with the feed roller 4 in a state where the front edge of the used paper can be pressed, thereby achieving stable conveyance of the used paper.
Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.
Claims (10)
1. A platen mechanism for use in a shredder having a waste storage area (51) located above a feed opening (52), characterized by: comprises that
The front roll shaft (11) is rotatably arranged above a paper inlet (52) of the paper shredder and is used for limiting the front edge of the waste paper and preventing the front edge of the waste paper from floating upwards;
a rear roller shaft (12) rotatably provided on the rear side of the front roller shaft (11) and disposed near the rear edge of the paper feed port (52) for pressing and holding the waste paper to prevent it from moving backward; and
the pressing plate (13) is arranged above the front roller shaft (11) and the rear roller shaft (12), the front edge of the pressing plate (13) is rotatably connected with the front roller shaft (11) and the rear roller shaft (12), and the rear edge of the pressing plate (13) can be rotatably supported above the waste paper storage area (51);
under the action of self weight, the pressing plate (13) is turned downwards and enables the front roll shaft (11) and the rear roll shaft (12) to be in a downward pressing state; under the action of upward force on the front roller shaft (11) and/or the rear roller shaft (12), the pressing plate (13) turns upwards, and the front roller shaft (11) and the rear roller shaft (12) are lifted upwards.
2. The platen mechanism of claim 1, wherein: the rear part of the pressing plate (13) is rotatably supported above the waste paper storage area (51), the front roller shaft (11) and the rear roller shaft (12) extend left and right and are arranged in parallel front and back, and the front edge of the pressing plate (13) is rotatably connected with the end part of the front roller shaft (11) and the end part of the rear roller shaft (12) through a rotating arm (131).
3. The platen mechanism of claim 2, wherein: the rotating arm (131) extends forwards and backwards, the front end of the rotating arm (131) is rotatably connected with the end part of the front roller shaft (11), and the rear end of the rotating arm (131) is rotatably connected with the end part of the rear roller shaft (12), so that the height of the front roller shaft (11) and the height of the rear roller shaft (12) can be automatically adjusted according to different stress.
4. The platen mechanism of claim 3, wherein: the front edge of the pressure plate (13) is provided with a first connecting arm (132) extending downwards at a position close to the end part, the middle part of the rotating arm (131) is upwards bulged to form a second connecting arm (1311), and the first connecting arm (132) and the second connecting arm (1311) are rotatably connected through matching of a shaft and a hole.
5. The platen mechanism of claim 4, wherein: the both sides of waste paper storage area (51) are provided with vertical extension's supporting seat (6), and it has shaft hole (61) that correspond clamp plate (13) to arrange to open on this supporting seat (6), clamp plate (13) are provided with connecting axle (133) that can rotate to be connected with this shaft hole (61) in the side edge department that is close to the rear end, thereby the junction of clamp plate (13) and supporting seat (6) is higher than the junction of first linking arm (132) and second linking arm (1311) and makes clamp plate (13) be the state of slope gradually downwards forward from the back.
6. A platen mechanism according to any one of claims 1 to 5 wherein: the front roller shaft (11) and/or the rear roller shaft (12) are/is concavely provided with a sliding groove (10) which is arranged along the circumferential direction on the outer circumferential wall close to the end part, and driving parts which can be matched with the sliding groove (10) to drive the front roller shaft (11) and/or the rear roller shaft (12) to move up and down in a paper shredding state are arranged on two sides of the waste paper storage area (51).
7. A drawer-type paper shredder with the paper pressing mechanism of claim 6, wherein: including body (2), shredded paper sword (3), feed roller (4) and nipper (1), be provided with drawer (5) that are used for depositing waste paper that can take out from body (2) front side on body (2), the inner space of this drawer (5) constitutes waste paper storage area (51), paper feed mouth (52) are seted up on the diapire of drawer (5) front portion, shredded paper sword (3) are located body (2) and are located drawer (5) below, correspond paper feed mouth (52) and arrange, nipper (1) is located the top of drawer (5), feed roller (4) can be located drawer (5) bottom and upper portion and expose in the front edge department of paper feed mouth (52) with rotating.
8. The drawer shredder according to claim 7, wherein: the axial length of preceding roller (11), back roller (12) is greater than the width of drawer (5), thereby it lets a mouthful (54) to open on the side bounding wall of drawer (5) and supply preceding roller (11), back roller (12) whereabouts pressure to hold waste paper.
9. The drawer shredder of claim 8, wherein: the side enclosing plate (50) of the drawer (5) forms the driving piece, the sliding chute (10) is in rolling fit with the upper edge of the side enclosing plate (50) of the drawer (5), the two yielding openings (54) are arranged, the yielding opening (54) positioned at the front side is arranged corresponding to the front roller shaft (11), the yielding opening (54) positioned at the rear side is arranged corresponding to the rear roller shaft (12) and forms a guide groove (55), the rear edge of the guide groove (55) extends upward gradually from front to rear to form a first guide slope (551), the upper end of the first guide slope (551) is smoothly connected with the upper edge of the side coaming (50) of the drawer (5), the front edge of the guide groove (55) gradually extends downwards from front to back to form a second guide slope (552), the guide groove (55) and the position-giving opening (54) at the front side thereof are in smooth transition, the rear edge of the relief port (54) is formed to extend upward gradually from front to back to form a third guide slope (541).
10. The drawer shredder according to claim 7, wherein: the top of the body (2) is provided with a cover plate (7) capable of covering the paper pressing mechanism (1), and the cover plate (7) is provided with a paper feeding port (71) arranged corresponding to the paper feeding port (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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