Large office paper shredder with compression function
By designing the conveying, pressing, and discharging mechanisms of a large office shredder, the problem of the shredder's collection bag being unable to fully compress the paper was solved, achieving full-range paper compaction and automatic discharging, saving space and labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BONSEN ELECTRONICS CO LTD
- Filing Date
- 2022-10-28
- Publication Date
- 2026-06-09
AI Technical Summary
The existing paper shredders' collection bags cannot fully compress the paper during the compression process, resulting in low space utilization and the need for frequent bag replacements, which wastes resources.
A large office paper shredder was designed, comprising a conveying device, a pressing device, and a discharging mechanism. The paper is compacted from all directions by the first pressing mechanism and the second pressing mechanism, and the paper is automatically discharged by the discharging mechanism. The first bracket provides support, and the cooperation of the first pressing mechanism, the second pressing mechanism, and the discharging mechanism achieves full-range compaction and automatic discharge of the paper.
It achieves full-body compaction of the paper, saves space, reduces the frequency of collection bag use, and lowers labor costs.
Smart Images

Figure CN115722317B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of paper shredder technology, specifically to a large office paper shredder with compression function. Background Technology
[0002] A paper shredder consists of a set of rotating blades, a comb, and a drive motor. Paper is fed through the interlocking blades and shredded into many small pieces to achieve confidentiality. The shredding method refers to the shape of the paper after it has been cut by the shredder blades. In daily use, collection bins or bags are used to collect the shredded paper. However, using collection bags without compression consumes a large number of bags, which is very environmentally unfriendly; therefore, this situation urgently needs improvement.
[0003] Chinese Patent No. CN215586694U discloses a paper shredder with a compression structure. This device uses a finger cylinder to grip a collection bag. Two lead screw motors, each connected to a connecting crossbar via a threaded seat, move towards each other, narrowing the bag's opening. A rotary motor then rotates the finger cylinders to a predetermined angle, compressing the internal space of the collection bag and compacting the paper scraps. If there is still considerable space remaining, the rotary motor can be reversed to a predetermined angle, and the two lead screw motors, connected to the connecting crossbar via the threaded seat, return to their starting positions, opening the bag and continuing paper scrap collection, thus improving the bag's space utilization. However, in actual operation, the finger cylinders can only grip the sides of the collection bag, compressing only the sides and not the middle, resulting in insufficient compaction of the paper and reduced utilization of the bag's internal space. Summary of the Invention
[0004] To address the problems existing in current technology, a large office shredder with compression function is provided. Paper is placed into the shredder, which shreds the paper and then conveys it to the pressing device via a conveying device. The first pressing mechanism can compact the top of the shredded paper, and the second pressing mechanism can compact the sides of the paper. The first support provides support during the pressing process. Through the cooperation of the first pressing mechanism, the second pressing mechanism, and the first support, the paper can be compacted from all directions, and then discharged through the discharge mechanism.
[0005] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:
[0006] A large office shredder with compression function includes a shredder, a conveying device, a pressing device, a first support, and a discharge mechanism;
[0007] The first support also includes a first extension frame, a second extension frame, a first square groove, a second square groove, and a first feed inlet; the first extension frame and the second extension frame are respectively arranged on the left and right sides of the first support, the first square groove and the second square groove are mirror images of the left and right sides of the first support, a pair of fixing blocks are mirror images of the inside of the second square groove, and the first feed inlet is located on the top of the first support.
[0008] The pressing device also includes a first pressing mechanism and a second pressing mechanism. The first pressing mechanism is located at the top of the first support and extends through the top surface of the first support into the interior of the first support; the second pressing mechanism is located inside the first support.
[0009] The conveying device is located on top of the first support, and the output end of the conveying device extends above the first feed inlet;
[0010] The discharge mechanism passes through the first square groove and the second square groove, and the discharge mechanism can cooperate with the first square groove and the second square groove to seal.
[0011] The paper shredder is positioned above the conveyor.
[0012] Preferably, the first pressing mechanism includes a pressure plate, a first connecting rod, a second connecting rod, a third connecting rod, a bending rod, and a second support.
[0013] The second bracket is fixedly installed on top of the first bracket; the second bracket is provided with a first rotating rod and a second rotating rod;
[0014] One end of the third link is hinged to the second rotating link;
[0015] One end of the second rotating rod is hinged to the first rotating rod;
[0016] One end of the bending rod is fixedly connected to the third connecting rod, and the other end of the bending rod is hinged to the second pressing mechanism.
[0017] The first link passes through the third link and the second link and is hinged to the second link;
[0018] The pressure plate is fixedly installed at one end of the first connecting rod near the first bracket.
[0019] Preferably, the second pressing mechanism includes a first push rod, a second push rod, a rotating rod, a first slide, a trolley, and a second motor;
[0020] The second motor is fixedly mounted on the first extension frame, and the output end of the second motor is fixedly connected to one end of the rotating rod.
[0021] The trolley slides inside the first bracket;
[0022] The first groove is fixedly installed inside the first bracket;
[0023] The first push rod is hinged to the side of the trolley near the second support;
[0024] One end of the second push rod is hinged to the first push rod.
[0025] Preferably, the trolley includes a first connecting rod, a second connecting rod, a roller, and a first slider;
[0026] The first connecting rod and the second connecting rod are mirror images of each other on the side of the trolley closest to the second motor;
[0027] There are eight rolling wheels, all of which are mirror images of the first and second connecting rods;
[0028] The first slider is fixedly installed on the left and right sides of the trolley.
[0029] Preferably, the discharge mechanism includes a hydraulic cylinder, a push plate, a tilting plate, a tension spring, and a second slider;
[0030] The hydraulic cylinder is fixedly mounted on the second extension frame;
[0031] The push plate is fixedly mounted at the output end of the hydraulic cylinder;
[0032] The flip plate is rotatably mounted on the second square groove; the flip plate is also provided with a second sliding groove;
[0033] The tension springs are a pair and mirror-arranged on the left and right sides of the flip plate. One end of the tension spring is fixedly connected to the second slider, and the other end of the tension spring is fixedly connected to the fixing block.
[0034] The second slider is slidably positioned within the second groove.
[0035] Preferably, the paper shredder includes a housing, a feeding mechanism, a pull-out plate, a shredding device, a heating element, and a fan;
[0036] The feeding mechanism is located at the top of the box;
[0037] The pull-out panel is located at the bottom of the cabinet;
[0038] The paper shredder is fixedly installed inside the upper part of the box;
[0039] The heating element and fan are mirror images of each other on the left and right sides of the inner wall of the cabinet.
[0040] Preferably, the feeding mechanism includes a feeding guide plate, an arc-shaped feeding plate, and a top plate;
[0041] The top plate is fixedly installed on the top of the box; a second feed inlet is provided on the top of the top plate;
[0042] The feed guides are a pair and are mirror-arranged on the left and right sides of the second feed inlet;
[0043] The curved feed plates are a pair and are mirror-mounted on the top plate near the housing.
[0044] Preferably, the paper shredder includes a first motor, a first blade, a first gear, a second blade, and a second gear;
[0045] The first motor is fixedly mounted on the outside of the housing;
[0046] The first reamer passes through both sides of the housing and is rotatably connected to the housing. The side of the first reamer closest to the first motor is fixedly connected to the output end of the first motor.
[0047] The first gear is fixedly sleeved on the first reamer;
[0048] The second reamer is mirror-image of the first reamer and is mounted inside the housing; the second reamer is rotatably connected to the housing.
[0049] The second gear is fixedly mounted on the second reamer.
[0050] Preferably, the conveying device includes a conveyor belt;
[0051] The conveyor belt is fixedly mounted on the top of the first support, and the output end of the conveyor belt is located above the first feed inlet.
[0052] Preferably, the conveyor belt is also equipped with baffles;
[0053] The baffles are in pairs and are located on the left and right sides of the conveyor belt.
[0054] The advantages of this application compared to the prior art are:
[0055] 1. This application achieves full compaction of the paper through the first pressing mechanism and the second pressing mechanism, thereby saving space and increasing practicality.
[0056] 2. This application achieves automatic paper discharge after paper compression by setting up the discharge mechanism, thus saving labor costs. Attached Figure Description
[0057] Figure 1 This is a front view of a large office shredder with compression capabilities;
[0058] Figure 2 This is a top view of a large office shredder with compression function;
[0059] Figure 3 A three-dimensional structural diagram of a large office shredder with compression function. Figure 1 ;
[0060] Figure 4 A schematic diagram of the three-dimensional mechanism of a large office shredder with compression function. Figure 2;
[0061] Figure 5 A three-dimensional structural diagram of a large office shredder with compression function. Figure 3 ;
[0062] Figure 6 A partial three-dimensional structure of a large office shredder with compression function. Figure 1 ;
[0063] Figure 7 A partial three-dimensional structure of a large office shredder with compression function. Figure 2 ;
[0064] Figure 8 It is a large office shredder with compression function. Figure 3 A partial schematic diagram of point A in the middle;
[0065] Figure 9 It is a large office shredder with compression function. Figure 4 A partial schematic diagram at point B in the middle;
[0066] Figure 10 A partial three-dimensional structure of a large office shredder with compression function. Figure 3 ;
[0067] Figure 11 A three-dimensional structural diagram of a large office shredder with compression function. Figure 4 .
[0068] The numbers on the map are:
[0069] 1- Paper shredder;
[0070] 11-Feeding mechanism;
[0071] 111 - Feed guide plate;
[0072] 112 - Arc-shaped feed plate;
[0073] 113-Top plate; 1131-Second feed inlet;
[0074] 12-Pull-out panel;
[0075] 13 - Paper shredder;
[0076] 131 - First motor;
[0077] 132 - First reamer;
[0078] 133 - First Gear;
[0079] 134 - Second reamer;
[0080] 135 - Second gear;
[0081] 14-Heating element;
[0082] 15- Fan;
[0083] 2- Conveying device;
[0084] 21-Conveyor belt;
[0085] 22-strip;
[0086] 3-Pressure device;
[0087] 31-First pressing mechanism;
[0088] 311-Pressure plate;
[0089] 312 - First Link;
[0090] 313 - Second Link;
[0091] 314 - Third Link;
[0092] 315 - Second support;
[0093] 316 - First rotating rod;
[0094] 317 - Second Rotating Rod;
[0095] 318 - Bending bar;
[0096] 32-Second pressing mechanism;
[0097] 321 - First putter;
[0098] 322 - Second putter;
[0099] 323 - Rotating rod;
[0100] 324 - First groove;
[0101] 325-Trolley; 3251-Rolling wheel; 3252-First slider; 3253-First connecting rod; 3254-Second connecting rod;
[0102] 326 - Second motor;
[0103] 4-First support;
[0104] 41-First extension frame;
[0105] 42 - Second extension rack;
[0106] 43-First square groove;
[0107] 44 - Second square groove;
[0108] 441-Fixing Block;
[0109] 45 - First feed inlet;
[0110] 5-Discharge mechanism;
[0111] 51-Hydraulic cylinder;
[0112] 53-Flip plate;
[0113] 531 - Second chute;
[0114] 54 - Tension spring;
[0115] 55 - Second slider. Detailed Implementation
[0116] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0117] See Figures 1 to 11 As shown, a large office shredder with compression function includes a shredder 1, a conveying device 2, a pressing device 3, a first support 4, and a discharge mechanism 5.
[0118] The first support 4 also includes a first extension frame 41, a second extension frame 42, a first square groove 43, a second square groove 44, and a first feed inlet 45; the first extension frame 41 and the second extension frame 42 are respectively arranged on the left and right sides of the first support 4, the first square groove 43 and the second square groove 44 are mirror images of the left and right sides of the first support 4, a pair of fixing blocks 441 are mirror images of the inside of the second square groove 44, and the first feed inlet 45 is located on the top of the first support 4.
[0119] The pressing device 3 also includes a first pressing mechanism 31 and a second pressing mechanism 32. The first pressing mechanism 31 is disposed on the top of the first support 4 and extends through the top surface of the first support 4 into the interior of the first support 4; the second pressing mechanism 32 is disposed inside the first support 4.
[0120] The conveying device 2 is located on top of the first support 4, and the output end of the conveying device 2 extends above the first feed inlet 45;
[0121] The discharge mechanism 5 passes through the first square groove 43 and the second square groove 44, and the discharge mechanism 5 can cooperate with the first square groove 43 and the second square groove 44 to seal.
[0122] The paper shredder 1 is positioned above the conveyor 2.
[0123] When paper needs to be shredded and compacted, it is placed into the shredder 1. After the paper is shredded, it is conveyed to the pressing device 3 by the conveying device 2. The first pressing mechanism 31 can compact the top of the shredded paper, and the second pressing mechanism 32 can compact the sides of the paper. The first support 4 provides support during the pressing process of the pressing device 3. Through the cooperation of the first pressing mechanism 31, the second pressing mechanism 32 and the first support 4, the paper can be compacted in all directions. Then, the paper is discharged through the discharge mechanism 5.
[0124] See Figure 7 As shown, the first pressing mechanism 31 includes a pressure plate 311, a first connecting rod 312, a second connecting rod 313, a third connecting rod 314, a bending rod 318, and a second support 315.
[0125] The second bracket 315 is fixedly mounted on the top of the first bracket 4; the second bracket 315 is provided with a first rotating rod 316 and a second rotating rod 317;
[0126] One end of the third link 314 is hinged to the second rotating link 317;
[0127] One end of the second link 313 is hinged to the first rotating rod 316;
[0128] One end of the bending rod is fixedly connected to the third connecting rod 314, and the other end of the bending rod is hinged to the second pressing mechanism 32.
[0129] The first link 312 passes through the third link 314 and the second link 313 and is hinged to the second link 313;
[0130] The pressure plate 311 is fixedly installed at one end of the first connecting rod 312 near the first bracket 4.
[0131] When it is necessary to press the top of the paper that has entered the first support 4, the second pressing mechanism 32 drives the bending rod to move horizontally. The bending rod drives the third link 314 and the second link 313 to rotate simultaneously. The second link 313 and the third link 314 both drive the first link 312 to move up and down at the same time, so that the pressure plate 311 moves up and down to achieve the compression function.
[0132] See Figure 7 As shown, the second pressing mechanism 32 includes a first push rod 321, a second push rod 322, a rotating rod 323, a first slide 324, a trolley 325, and a second motor 326;
[0133] The second motor 326 is fixedly mounted on the first extension frame 41, and the output end of the second motor 326 is fixedly connected to one end of the rotating rod 327.
[0134] The trolley 325 is slidably positioned inside the first bracket 4;
[0135] The first slide groove 324 is fixedly installed inside the first bracket 4;
[0136] The first push rod 321 is hinged to the side of the trolley near the second bracket 315;
[0137] One end of the second push rod 322 is hinged to the first push rod 321.
[0138] When shredded paper needs to be compressed horizontally, the second motor 326 drives the rotating rod to rotate, which in turn drives the second push rod 322 to rotate. The first push rod 321 moves horizontally while the second push rod 322 rotates, causing the trolley 325 to move horizontally along the direction of the first slide groove 324, thereby realizing the horizontal compression function of the trolley 325 for shredded paper.
[0139] See Figure 7 As shown, the trolley 325 includes a first connecting rod 3253, a second connecting rod 3254, a rolling wheel 3251, and a first slider 3252;
[0140] The first connecting rod 3253 and the second connecting rod 3254 are mirror images of each other on the side of the trolley 325 near the second motor 326;
[0141] There are eight rollers 3251, all of which are mirror images of the first connecting rod 3253 and the second connecting rod 3254;
[0142] The first slider 3252 is fixedly installed on the left and right sides of the trolley 325.
[0143] When it is necessary to move the trolley 325 horizontally along the first slide rail 324, the second motor 326 drives the first push rod 321 to move horizontally. The first push rod 321 pushes the trolley 325 to move horizontally. Through the cooperation of the rolling wheel 3251 and the first slider 3252 with the first slide rail, the trolley 325 achieves the function of moving horizontally along the first slide rail, so that the trolley 325 can always maintain directional displacement during the horizontal movement.
[0144] See Figures 1 to 5 As shown, the discharge mechanism 5 includes a hydraulic cylinder 51, a push plate, a tilting plate 53, a tension spring 54, and a second slider 55;
[0145] Hydraulic cylinder 51 is fixedly mounted on the second extension frame 42;
[0146] The push plate is fixedly mounted at the output end of the hydraulic cylinder 51;
[0147] The flip plate 53 is rotatably mounted on the second square groove 44; the flip plate 53 is also provided with a second sliding groove 531;
[0148] A pair of tension springs 54 are arranged mirror images of each other on the left and right sides of the flip plate 53. One end of the tension spring 54 is fixedly connected to the second slider 55, and the other end of the tension spring 54 is fixedly connected to the fixing block 441.
[0149] The second slider 55 is slidably disposed within the second slide groove 531.
[0150] When material needs to be discharged, the push plate is pushed out by the hydraulic cylinder 51. The push plate pushes the already compressed paper, and the paper pushes the flip plate 53. Through the cooperation of the tension spring 54, the second slider 55 and the second slide groove 531, the flip plate 53 is flipped, so that the paper can be discharged from the first support 4. It should be noted that when the discharge mechanism 5 is not working, the push plate can overlap with the first square groove 43 and the flip plate 53 can overlap with the second square groove 44, so that the paper can be compressed in a closed space.
[0151] See Figures 1 to 11 As shown, the paper shredder 1 includes a housing, a feeding mechanism 11, a pull-out plate 12, a paper shredding device 13, a heating tube 14, and a fan 15;
[0152] The feeding mechanism 11 is located at the top of the box;
[0153] The pull-out panel 12 is located at the bottom of the cabinet;
[0154] The paper shredder 13 is fixedly installed inside the upper part of the box;
[0155] The heating element 14 and the fan 15 are mirror images of each other on the left and right sides of the inner wall of the cabinet.
[0156] When paper needs to be shredded, the operator can put the paper to be processed into the box through the feeding mechanism 11, and the paper shredder 13 will shred the paper. With the cooperation of the heating tube 14 and the fan 15, the shredded paper can be dried quickly, making it easy to compress and process. After shredding, the operator can pull out the pull plate 12 to let the shredded paper enter the conveying mechanism for the next step of processing.
[0157] See Figure 3 and Figure 8 As shown, the feeding mechanism 11 includes a feeding guide plate 111, an arc-shaped feeding plate 112, and a top plate 113;
[0158] The top plate 113 is fixedly installed on the top of the box; a second feed inlet 1131 is provided on the top of the top plate 113;
[0159] The feed guide plates 111 are a pair and are mirror images of each other on the left and right sides of the second feed port 1131;
[0160] The arc-shaped feed plates 112 are a pair and are mirror-arranged on the side of the top plate 113 near the housing.
[0161] The feeding guide plate 111 and the arc-shaped feeding plate 112 set on the top plate 113 enable the operator to more accurately feed the paper into the shredder 13 when feeding the paper from the feed port, thereby preventing the paper from jamming.
[0162] See Figures 1 to 10 As shown, the paper shredder 13 includes a first motor 131, a first blade 132, a first gear 133, a second blade 134, and a second gear 135;
[0163] The first motor 131 is fixedly mounted on the outside of the housing;
[0164] The first reamer 132 passes through both sides of the housing and is rotatably connected to the housing. The side of the first reamer 132 closest to the first motor 131 is fixedly connected to the output end of the first motor 131.
[0165] The first gear 133 is fixedly sleeved on the first reamer 132;
[0166] The second reamer 134 is mirror-image of the first reamer 132 and is disposed inside the housing; the second reamer 134 is rotatably connected to the housing.
[0167] The second gear 135 is fixedly mounted on the second reamer 134.
[0168] When it is necessary to shred the paper, the second motor 326 drives the first scissor 132 to rotate. The first scissor 132 drives the first gear 133 to rotate at the same time. The first gear 133 meshes with the second gear 135 to drive the transmission, so that the second scissor 134 rotates in the opposite direction at the same time, thereby realizing the function of shredding the paper.
[0169] See Figures 1 to 11 As shown, the conveying device 2 includes a conveyor belt 21;
[0170] The conveyor belt 21 is fixedly installed on the top of the first support 4, and the output end of the conveyor belt 21 is located above the first feed inlet 45.
[0171] By setting up the conveyor belt 21, the paper shredded in the paper shredder 1 can be transported to the pressing device 3, thereby pressing the paper in the pressing device 3.
[0172] See Figures 1 to 11 As shown, the conveyor belt 21 is also equipped with baffles 22;
[0173] The baffles 22 are a pair and are arranged on the left and right sides of the conveyor belt 21.
[0174] By setting the baffle 22, the conveyor belt 21 is less likely to overflow during the conveying process, thus increasing the conveying efficiency.
[0175] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A large office shredder with compression function, characterized in that, It includes a paper shredder (1), a conveying device (2), a pressing device (3), a first support (4), and a discharge mechanism (5); The first support (4) also includes a first extension frame (41), a second extension frame (42), a first square groove (43), a second square groove (44), and a first feed inlet (45); the first extension frame (41) and the second extension frame (42) are respectively arranged on the left and right sides of the first support (4), the first square groove (43) and the second square groove (44) are mirror images of the left and right sides of the first support (4), a pair of fixing blocks (441) are mirror images inside the second square groove (44), and the first feed inlet (45) is located on the top of the first support (4); The pressing device (3) also includes a first pressing mechanism (31) and a second pressing mechanism (32). The first pressing mechanism (31) is located at the top of the first support (4) and extends through the top surface of the first support (4) into the interior of the first support (4); the second pressing mechanism (32) is located inside the first support (4). The conveying device (2) is located on the top of the first support (4), and the output end of the conveying device (2) extends above the first feed port (45); The discharge mechanism (5) passes through the first square groove (43) and the second square groove (44), and the discharge mechanism (5) can cooperate with the first square groove (43) and the second square groove (44) to seal; The paper shredder (1) is positioned above the conveying device (2); The first pressing mechanism (31) includes a pressure plate (311), a first connecting rod (312), a second connecting rod (313), a third connecting rod (314), a bending rod, and a second support (315). The second bracket (315) is fixedly installed on the top of the first bracket (4); the second bracket (315) is provided with a first rotating rod (316) and a second rotating rod (317). One end of the third link (314) is hinged to the second rotating link (317); One end of the second link (313) is hinged to the first rotating rod (316); One end of the bending rod (318) is fixedly connected to the third connecting rod (314), and the other end of the bending rod (318) is hinged to the second pressing mechanism (32); The first link (312) passes through the third link (314) and the second link (313) and is hinged to the second link (313); The pressure plate (311) is fixedly installed at one end of the first connecting rod (312) near the first bracket (4); The second pressing mechanism (32) includes a first push rod (321), a second push rod (322), a rotating rod (323), a first slide groove (324), a trolley (325), and a second motor (326); The second motor (326) is fixedly mounted on the first extension frame (41), and the output end of the second motor (326) is fixedly connected to one end of the rotating rod (323); The trolley (325) is slidably disposed inside the first bracket (4); The first slide (324) is fixedly installed inside the first bracket (4); The first push rod (321) is hinged to the side of the trolley near the second support (315); One end of the second push rod (322) is hinged to the first push rod (321); One end of the rotating rod (323) is hinged to the second push rod (322).
2. A large office shredder with compression function according to claim 1, characterized in that, The trolley (325) includes a first connecting rod (3253), a second connecting rod (3254), a rolling wheel (3251), and a first slider (3252); The first connecting rod (3253) and the second connecting rod (3254) are mirror images of each other on the side of the trolley (325) near the second motor (326); The number of rolling wheels (3251) is eight, and they are all mirror images of the first connecting rod (3253) and the second connecting rod (3254); The first slider (3252) is fixedly installed on the left and right sides of the trolley (325).
3. A large office shredder with compression function according to claim 1, characterized in that, The discharge mechanism (5) includes a hydraulic cylinder (51), a push plate (52), a tilting plate (53), a tension spring (54), and a second slider (55); The hydraulic cylinder (51) is fixedly mounted on the second extension frame (42); The push plate (52) is fixedly installed at the output end of the hydraulic cylinder (51); The flip plate (53) is rotatably mounted on the second square groove (44); the flip plate (53) is also provided with a second sliding groove (531); A pair of tension springs (54) are arranged mirror images of each other on the left and right sides of the flip plate (53). One end of the tension spring (54) is fixedly connected to the second slider (55), and the other end of the tension spring (54) is fixedly connected to the fixing block (441). The second slider (55) is slidably disposed within the second groove (531).
4. A large office shredder with compression function according to claim 1, characterized in that, The paper shredder (1) includes a housing, a feeding mechanism (11), a pull-out plate (12), a paper shredding device (13), a heating tube (14), and a fan (15). The feeding mechanism (11) is located on the top of the box; The pull handle is located at the bottom of the box; The paper shredder (13) is fixedly installed inside the upper part of the box; The heating element (14) and the fan (15) are mirror images of each other on the left and right sides of the inner wall of the box.
5. A large office shredder with compression function according to claim 4, characterized in that, The feeding mechanism (11) includes a feeding guide plate (111), an arc-shaped feeding plate (112), and a top plate (113). The top plate (113) is fixedly installed on the top of the box; a second feed port (1131) is provided on the top of the top plate (113). The feed plate has a pair and is mirror-arranged on the left and right sides of the second feed port (1131); The curved feed plates (112) are a pair and mirror-arranged on the side of the top plate (113) near the housing.
6. A large office shredder with compression function according to claim 4, characterized in that, The paper shredder (13) includes a first motor (131), a first blade (132), a first gear (133), a second blade (134), and a second gear (135); The first motor (131) is fixedly mounted on the outside of the housing; The first reamer (132) passes through both sides of the housing and is rotatably connected to the housing. The side of the first reamer (132) closest to the first motor (131) is fixedly connected to the output end of the motor. The first gear (133) is fixedly sleeved on the first reamer (132); The second reamer (134) is mirror-image of the first reamer (132) inside the housing; the second reamer (134) is rotatably connected to the housing. The second gear (135) is fixedly mounted on the second reamer (134).
7. A large office shredder with compression function according to claim 1, characterized in that, The conveying device (2) includes a conveyor belt (21); The conveyor belt (21) is fixedly installed on the top of the first bracket (4), and the output end of the conveyor belt (21) is located above the first feed inlet (45).
8. A large office shredder with compression function according to claim 1, characterized in that, The conveyor belt (21) is also equipped with baffles (22); The baffles (22) are in pairs and are arranged on the left and right sides of the conveyor belt (21).