Paper feeding mechanism of pulverizer

Abstract

The utility model discloses a paper feeding mechanism of a pulverizer. The paper feeding mechanism comprises a rack, a cover plate and a paper rubbing component, the cover plate is rotationally mounted on the rack; the paper twisting component is installed on the cover plate and comprises a paper twisting frame and at least one paper twisting roller, and the paper twisting rollers are rotatably installed on the paper twisting frame and suitable for being driven to rotate; wherein a blocking arm is arranged on the cover plate, and an elastic matching deformation part is arranged on the paper rubbing frame; an inserting mechanism is arranged between the cover plate and the paper twisting frame and comprises an inserting hole and an inserting shaft; when the paper twisting frame is assembled on the cover plate, the inserting shaft is inserted into the inserting hole, the elastic matching deformation part and the blocking arm are at least in abutting fit in the axial direction of the inserting shaft, and the elastic matching deformation part is suitable for being applied with force to generate deformation to be separated from blocking of the blocking arm. And at the moment, the inserting shaft is suitable for being moved to be separated from the inserting hole, so that the paper twisting frame is detached from the cover plate.

Description

Technical Field

[0001] The utility model relates to a paper feeding mechanism of a pulverizer, belonging to the technical field of pulverizers. Background Art

[0002] A paper shredder is a pulverizer for shredding paper. In its structure, a paper feeding mechanism is required to feed the paper to be shredded into the shredding inlet of the shredder, and the paper enters the shredding component for shredding. A Chinese patent application publication number CN116969218A discloses a paper feeding device, in which the paper processing component is the shredding component, and also includes a paper picking component, but the paper picking component is installed on the upper plate. However, the paper picking component provided in the patent is not convenient to disassemble and is inconvenient to use. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a paper feeding mechanism for a pulverizer, which can facilitate the disassembly and installation of a paper rubbing component, thereby facilitating assembly.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a shredder paper feeding mechanism, comprising:

[0005] frame;

[0006] A cover plate, the cover plate being rotatably mounted on the frame;

[0007] A paper pickup component, the paper pickup component is mounted on the cover plate, the paper pickup component comprises a paper pickup frame and at least one paper pickup roller, the paper pickup roller is rotatably mounted on the paper pickup frame, and the paper pickup roller is suitable for being driven to rotate; wherein,

[0008] The cover plate is provided with a stop arm, and the paper picking frame is provided with an elastic matching deformation part;

[0009] A plug-in mechanism is provided between the cover plate and the paper pickup frame, and the plug-in mechanism comprises a plug-in hole and a plug-in shaft;

[0010] When the paper pickup rack is assembled on the cover plate, the plug-in shaft is inserted into the plug-in hole, the elastic matching deformation portion and the blocking arm are abutted and matched at least in the axial direction of the plug-in shaft, and the elastic matching deformation portion is suitable for being forced to generate deformation to escape from the obstruction of the blocking arm. At this time, the plug-in shaft is suitable for being moved to escape from the plug-in hole, thereby removing the paper pickup rack from the cover plate.

[0011] Furthermore, two pickup rollers are provided, and a synchronization mechanism is provided between the two pickup rollers, and the synchronization mechanism is suitable for making the two pickup rollers rotate synchronously.

[0012] Furthermore, the synchronization mechanism includes a synchronization wheel coaxially connected to the pickup roller and a synchronization belt connecting the two synchronization wheels.

[0013] Further, a rotating shaft adapted to be driven to rotate is rotatably provided on the cover plate. A rotating connection hole is provided on one of the paper feed rollers. The rotating connection hole is adapted to be inserted into and circumferentially and positionally connected to the rotating shaft. When the rotating shaft rotates, it drives the paper feed roller connected thereto to rotate.

[0014] Further, the rotating connection hole and the rotating shaft are a spline structure arranged in cooperation.

[0015] Further, the end of the elastic cooperation and deformation part is an abutting head adapted to abut against the blocking arm, and the size of the abutting head is larger than the size of the body of the elastic cooperation and deformation part.

[0016] Further, the side surface of the abutting head is an abutting surface adapted to abut against the blocking arm, and the upper surface of the abutting head is an inclined surface that cooperates with the blocking arm to squeeze and deform the elastic cooperation and deformation part when the paper feed rack is installed on the cover plate.

[0017] Further, a pressing part is provided on the elastic cooperation and deformation part.

[0018] Further, in order to facilitate the cleaning of the lens of the paper sensing device, the shredder has a shredding inlet. A paper sensing device adapted to collect whether there is paper entering the shredding inlet is provided on the frame at a position corresponding to the shredding inlet. A cleaning component is provided on the cover plate. The cleaning component is adapted to contact the paper sensing device to clean the paper sensing device when the cover plate is rotated relative to the frame.

[0019] Further, the paper sensing device is a diffuse reflection infrared sensor.

[0020] After adopting the above technical solution, when the paper feed component of the present utility model is assembled on the cover plate, the insertion shaft is inserted into the insertion hole, and at the same time, the rotating shaft is inserted into the rotating connection hole. The entire paper feed component is pushed to one side. The elastic cooperation and deformation part elastically deforms under the action of the blocking arm. After being inserted in place, the elastic cooperation and deformation part resumes deformation. At this time, the elastic cooperation and deformation part and the blocking arm are at least in abutting cooperation in the axial direction of the insertion shaft, so as to limit the paper feed component; when it is necessary to disassemble the paper feed component from the cover plate, press the elastic cooperation and deformation part. The elastic cooperation and deformation part deforms and breaks away from the blocking of the blocking arm, and the entire paper feed component is pushed to the other side, so as to disassemble the paper feed component from the cover plate, which is very convenient; in addition, after the present utility model is used, due to the influence of shredded paper or dust on the paper sensing device, its lens has interference, and there may be a phenomenon of sensing failure. A cleaning component is provided on the cover plate. By rotating the cover plate, that is, opening and closing the cover plate, the lens of the paper sensing device is cleaned by the cleaning component, so as to achieve the purpose of cleaning the lens of the paper sensing device. Description of the Drawings

[0021] Figure 1 Stereogram of the cover part of the paper feeding mechanism of the shredder of the present utility model;

[0022] Figure 2 Stereogram of the paper rubbing component of the present utility model;

[0023] Figure 3 Structural sectional view of the paper feeding mechanism of the shredder of the present utility model. Specific embodiments

[0024] In order to make the content of the present utility model easier to be clearly understood, the present utility model will be further described in detail below according to specific embodiments and in conjunction with the accompanying drawings.

[0025] As Figures 1 to 3 shown, a paper feeding mechanism of a shredder includes:

[0026] A frame 1;

[0027] A cover plate 2, which is rotatably installed on the frame 1;

[0028] A paper rubbing component 3, which is installed on the cover plate 2. The paper rubbing component 3 includes a paper rubbing frame 31 and two paper rubbing rollers 32. The paper rubbing rollers 32 are rotatably installed on the paper rubbing frame 31 and are adapted to be driven to rotate; wherein,

[0029] A stop arm 21 is provided on the cover plate 2, and an elastic mating deformation part 33 is provided on the paper rubbing frame 31;

[0030] An insertion mechanism is provided between the cover plate 2 and the paper rubbing frame 31. The insertion mechanism includes an insertion hole and an insertion shaft 34;

[0031] When the paper rubbing frame 31 is assembled on the cover plate 2, the insertion shaft 34 is inserted into the insertion hole, and the elastic mating deformation part 33 and the stop arm 21 are in abutting cooperation at least in the axial direction of the insertion shaft 34. The elastic mating deformation part 33 is adapted to be forced to generate deformation and break away from the block of the stop arm 21. At this time, the insertion shaft 34 is adapted to be actuated to break away from the insertion hole, so as to disassemble the paper rubbing frame 31 from the cover plate 2.

[0032] In this embodiment, as Figure 1 , 2 shown, the insertion shaft 34 can be specifically fixedly arranged on the paper rubbing frame 31, and the insertion hole can be specifically arranged on the cover plate 2; of course, the insertion shaft 34 can also be arranged on the cover plate 2, and the insertion hole is arranged on the paper rubbing frame 31.

[0033] Specifically, as Figure 1 , 2 shown, a synchronization mechanism is provided between the two paper rubbing rollers 32, and the synchronization mechanism is adapted to make the two paper rubbing rollers 32 rotate synchronously.

[0034] In this embodiment, as Figure 1 , 2 shown, the synchronization mechanism may specifically be the following structure: It includes a synchronizing wheel 4 coaxially connected to the paper feed roller 32 and a timing belt connecting the two synchronizing wheels 4.

[0035] In this embodiment, as Figure 1 , 2 shown, a rotating shaft 5 adapted to be driven to rotate is rotatably provided on the cover plate 2. A rotating connection hole is provided on one of the paper feed rollers 32. The rotating connection hole is adapted to be inserted into and circumferentially and limit-connected to the rotating shaft 5. When the rotating shaft 5 rotates, it drives the paper feed roller 32 connected thereto to rotate. Here, the mating relationship between the rotating shaft 5 and the rotating connection hole can be regarded as a plug-in mechanism.

[0036] Specifically, as Figure 1 , 2 shown, the rotating connection hole and the rotating shaft 5 may specifically be a spline structure provided in cooperation. Through the spline structure, the rotating connection hole is inserted into and circumferentially and limit-connected to the rotating shaft 5. Correspondingly, the synchronizing wheel 4 on the paper feed roller 32 provided with the rotating connection hole can also be inserted onto the rotating shaft 5 through a spline mating mechanism to realize the coaxial connection relationship between the paper feed roller 32 and the corresponding synchronizing wheel 4.

[0037] Specifically, the rotating mechanism for driving the rotating shaft 5 may refer to a paper conveying device disclosed in a Chinese patent with the application publication number CN116969218A, which will not be elaborated in this embodiment.

[0038] In this embodiment, when the paper feed component 3 is assembled on the cover plate 2, the insertion shaft 34 is inserted into the insertion hole, and at the same time, the rotating shaft 5 is inserted into the rotating connection hole. The entire paper feed component 3 is pushed to one side. The elastic mating deformation part 33 elastically deforms under the action of the stop arm 21 to avoid the stop arm 21. After being inserted in place, the elastic mating deformation part 33 restores its deformation. At this time, the elastic mating deformation part 33 and the stop arm 21 are at least in abutting cooperation in the axial direction of the insertion shaft 34, so as to limit the paper feed component 3; when it is necessary to disassemble the paper feed component 3 from the cover plate 2, the elastic mating deformation part 33 is pressed, and the elastic mating deformation part 33 deforms and disengages from the blocking of the stop arm 21, and the entire paper feed component 3 is pushed to the other side, so as to disassemble the paper feed component 3 from the cover plate 2, which is very convenient.

[0039] Specifically, as Figure 1 , 2 shown, the end of the elastic mating deformation part 33 is an abutting head 33a that abuts and cooperates with the stop arm 21, and the size of the abutting head 33a is larger than the size of the body of the elastic mating deformation part 33.

[0040] Specifically, as Figure 1 , 2As shown, the side surface of the abutting head 33a is an abutting surface 33b that abuts and cooperates with the retaining arm 21, and the upper surface of the abutting head 33a is an inclined surface 33c that cooperates with the retaining arm 21 to squeeze and deform the elastic cooperation deformation part 33 when the paper feeding rack 31 is installed on the cover plate 2.

[0041] Specifically, the axial direction of the insertion shaft 34 is the first direction, and the extending direction of the abutting surface 33b is the second direction perpendicular to the first direction.

[0042] Specifically, as Figure 1 、 2 shown, the elastic cooperation deformation part 33 is provided with a pressing part 33d. By pressing the pressing part 33d, the elastic cooperation deformation part 33 can be deformed. Of course, during assembly, the elastic cooperation deformation part 33 can be deformed by the retaining arm 21 squeezing the inclined surface 33c.

[0043] Specifically, as Figure 3 shown, the shredder has a shredding inlet 6. A paper sensing device 7 adapted to collect whether there is paper entering the shredding inlet 6 is provided at a position on the frame 1 corresponding to the shredding inlet 6. A cleaning assembly is provided on the cover plate 2. The cleaning assembly is adapted to contact the paper sensing device 7 to clean the paper sensing device 7 when the cover plate 2 rotates relative to the frame 1.

[0044] In this embodiment, the cleaning assembly can be a brush 8 installed on the cover plate 2; specifically, a protruding mounting part 22 is provided on the cover plate 2, and the brush 8 is installed on the mounting part 22.

[0045] The paper sensing device 7 can specifically be a diffuse reflection infrared sensor.

[0046] After the shredder is used, due to the influence of shredded paper or dust, the lens of the paper sensing device 7 has interference, and there may be a phenomenon of sensing failure. A cleaning assembly is provided on the cover plate 2. By rotating the cover plate 2, that is, when the cover plate 2 is opened and closed, the lens of the paper sensing device 7 is cleaned by the cleaning assembly, so as to achieve the purpose of cleaning the lens of the paper sensing device 7.

[0047] In the above specific embodiments, the technical problems solved, technical solutions and beneficial effects of the present invention are further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A paper feeding mechanism for a shredder, characterized in that: include: Rack (1); A cover plate (2), wherein the cover plate (2) is rotatably mounted on the frame (1); A paper pickup component (3), the paper pickup component (3) is mounted on the cover plate (2), the paper pickup component (3) comprises a paper pickup frame (31) and at least one paper pickup roller (32), the paper pickup roller (32) is rotatably mounted on the paper pickup frame (31), and the paper pickup roller (32) is suitable for being driven to rotate; wherein, The cover plate (2) is provided with a blocking arm (21), and the paper picking frame (31) is provided with an elastic matching deformation portion (33); A plug-in mechanism is provided between the cover plate (2) and the paper rubbing frame (31), and the plug-in mechanism comprises a plug-in hole and a plug-in shaft (34); When the paper pickup frame (31) is assembled on the cover plate (2), the plug-in shaft (34) is inserted into the plug-in hole, and the elastically matched deformation portion (33) and the blocking arm (21) are abutted and matched at least in the axial direction of the plug-in shaft (34). The elastically matched deformation portion (33) is suitable for being applied with force to generate deformation to escape from the obstruction of the blocking arm (21). At this time, the plug-in shaft (34) is suitable for being moved to escape from the plug-in hole, thereby removing the paper pickup frame (31) from the cover plate (2).

2. The shredder paper feeding mechanism according to claim 1, characterized in that: Two pickup rollers (32) are provided, and a synchronization mechanism is provided between the two pickup rollers (32), wherein the synchronization mechanism is suitable for making the two pickup rollers (32) rotate synchronously.

3. The shredder paper feeding mechanism according to claim 2, characterized in that: The synchronization mechanism comprises a synchronization wheel (4) coaxially connected to the paper pickup roller (32) and a synchronization belt connecting the two synchronization wheels (4).

4. The shredder paper feeding mechanism according to claim 2, characterized in that: A rotating shaft (5) suitable for being driven to rotate is rotatably arranged on the cover plate (2), and a rotating connection hole is arranged on one of the paper pickup rollers (32). The rotating connection hole is suitable for being plugged into the rotating shaft (5) and connected in a circumferential limit direction. When the rotating shaft (5) rotates, it drives the connected paper pickup roller (32) to rotate.

5. The shredder paper feeding mechanism according to claim 4, characterized in that: The rotary connection hole and the rotary shaft (5) are matched spline structures.

6. The shredder paper feeding mechanism according to claim 1, characterized in that: The end of the elastically matched deformation part (33) is an abutment head (33a) that abuts against the blocking arm (21), and the size of the abutment head (33a) is larger than the size of the body of the elastically matched deformation part (33).

7. The shredder paper feeding mechanism according to claim 6, characterized in that: The side surface of the abutment joint (33a) is an abutment surface (33b) that abuts against the blocking arm (21), and the top surface of the abutment joint (33a) is an inclined surface (33c) that cooperates with the blocking arm (21) to squeeze and deform the elastically matched deformation portion (33) when the paper pickup frame (31) is installed on the cover plate (2).

8. The shredder paper feeding mechanism according to claim 1, characterized in that: A pressing portion (33d) is provided on the elastic matching deformation portion (33).

9. The shredder paper feeding mechanism according to claim 1, characterized in that: The pulverizer has a pulverizing inlet (6); a paper sensor (7) suitable for detecting whether paper enters the pulverizing inlet (6) is provided on the frame (1) at a position corresponding to the pulverizing inlet (6); a cleaning component is provided on the cover plate (2); the cleaning component is suitable for contacting the paper sensor (7) and cleaning the paper sensor (7) when the cover plate (2) is rotated relative to the frame (1).

10. The shredder paper feeding mechanism according to claim 9, characterized in that: The paper sensing device (7) is a diffuse reflection infrared sensor.

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