Paper rubbing device and automatic paper rubbing type shredder

Abstract

The present invention provides a paper rubbing device and an automatic paper rubbing type shredder, wherein the paper rubbing device comprises a fixed frame, a paper rubbing assembly, a paper separation assembly and a transmission assembly connected with the paper rubbing assembly and the paper separation assembly; the fixed frame is provided with a paper placement opening and a paper transmission channel connected with the paper placement opening; the paper separation assembly comprises a paper separation wheel shaft and a paper separation wheel, the paper separation wheel shaft is connected with the transmission assembly, the paper separation wheel is provided with a paper clamping opening, the paper separation wheel is arranged at the paper placement opening and sleeved on the paper separation wheel shaft, and can be embedded between the papers to clamp a plurality of papers and rotate to send them into the paper transmission channel; the paper rubbing assembly is arranged in the paper transmission channel, and comprises a paper rubbing wheel for rubbing the papers sent by the paper separation wheel to the shredder core and a paper rubbing wheel shaft for installing the paper rubbing wheel on the fixed frame. By arranging the paper separation assembly, the paper rubbing device can rub a plurality of papers into the shredder core for shredding at one time, which is beneficial to improving the shredding efficiency of the shredder.

Description

Technical Field

[0001] The present invention relates to the technical field of office equipment, and in particular to a paper rubbing device and an automatic paper rubbing type shredder. Background Art

[0002] The fully automatic shredders currently on the market basically shred paper piece by piece. Although this solves the problem of manual supervision, the shredding efficiency is relatively low. Generally, the maximum shredding capacity of an automatic shredder can reach five to eight sheets, that is, five to eight sheets of paper are shredded at a time. Each time a piece of paper is shredded, the machine's efficiency is relatively low. Summary of the invention

[0003] The object of the present invention is to provide a paper rubbing device for improving the paper shredding efficiency of the machine and an automatic paper rubbing type shredder using the paper rubbing device.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] In a first aspect, the present invention provides a paper picking device, which is arranged above a shredder core of a shredder to automatically feed paper into the shredder core, the paper picking device comprising a fixed frame, a paper picking assembly, a paper separating assembly and a transmission assembly connected to the paper picking assembly and the paper separating assembly; the fixed frame is provided with a paper placement opening and a paper transmission channel connected to the paper placement opening; the paper separating assembly comprises a paper separating wheel shaft and a paper separating wheel, the paper separating wheel shaft is connected to the transmission assembly, the paper separating wheel is provided with a paper clamping opening, the paper separating wheel is arranged at the paper placement opening and sleeved on the paper separating wheel shaft, and can be embedded between papers to clamp multiple papers and rotate to feed them into the paper transmission channel; the paper picking assembly is arranged in the paper transmission channel, and comprises a paper picking wheel for picking up the paper sent by the paper separating wheel to the shredder core and a paper picking wheel shaft for mounting the paper picking wheel on the fixed frame.

[0006] In one embodiment, the paper separation wheel is a circular sheet, and the paper clamping opening is extended along the circumferential edge toward the center of the circle. Of the two side edges of the paper clamping opening, one side is perpendicular to the horizontal plane, and the other side is inclined in a direction away from the paper pickup assembly.

[0007] In one embodiment, the distance between the two side edges of the paper clamping opening is between 1.5 times and 2 times the thickness of the paper to be separated at one time.

[0008] In one embodiment, the transmission assembly includes a first bevel gear, a second bevel gear, a first synchronous system, and a second synchronous system. The paper separation wheel is fixed to one end of the paper separation wheel shaft by a screw with a gasket, the first bevel gear is sleeved on the other end of the paper separation wheel shaft and meshes with the second bevel gear, the second bevel gear is connected to the first synchronous system, and the second synchronous system is connected to the paper picking assembly and connected to the first synchronous system.

[0009] In one embodiment, the transmission ratio of the transmission assembly is configured as follows: the paper separation time of one rotation of the paper separation wheel is equal to the paper rubbing time of the paper rubbing wheel to rub a paper to the shredder core once, and is equal to the paper shredding time required for the shredder core to completely shred a paper once.

[0010] In one embodiment, the first bevel gear and the second bevel gear are encapsulated in a receiving space formed by connecting a gland and a fixing frame.

[0011] In one embodiment, the paper separation assembly further comprises a paper stopper located on the side of the paper separation wheel close to the paper pickup assembly, and an arc-shaped guide portion is provided at the lower end of the paper stopper, one end of the guide portion is close to the paper separation wheel, and the other end extends above the paper pickup wheel.

[0012] In one embodiment, the paper picking device further includes a paper pushing assembly, which includes a paper pushing board and a spring-pressing member pressed against a side of the paper pushing board away from the paper separating wheel, wherein the spring-pressing member continuously applies pressure to the paper pushing board toward the paper separating wheel.

[0013] In one embodiment, the fixing frame is provided with a nut column, and a rotating shaft mounting groove is arranged near the nut column, the paper pushing assembly also includes a pushing paper board pressing block, the pushing paper board pressing block is provided with a screw hole, the pushing paper board pressing block is connected to the nut column by means of a screw passing through the screw hole and is covered above the rotating shaft mounting groove, the pushing paper board is provided with a rotating shaft at the upper end, the spring pressure piece is a torsion spring, which is sleeved on the rotating shaft, and the rotating shaft is embedded in the rotating shaft mounting groove.

[0014] As a second aspect, the present invention relates to an automatic paper rubbing type shredder, comprising a chassis, a shredder core arranged inside the chassis, and the above-mentioned paper rubbing device arranged above the chassis and rubbing the to-be-shredded paper to send it to the shredder core.

[0015] The technical solution provided by the present invention has the beneficial effect that by arranging a paper separating assembly in the paper rubbing assembly, multiple sheets of paper can be clamped and fed into the paper rubbing assembly at one time, so that the paper rubbing assembly can rub and feed multiple sheets of paper to the shredder core at one time, so that the shredder core can complete the shredding task of multiple sheets of paper at one time, thereby improving the shredding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments of the present invention are briefly introduced below.

[0017] Figure 1 A three-dimensional diagram of a paper picking device provided by an embodiment of the present invention;

[0018] Figure 2 for Figure 1 An exploded view of the paper pickup device shown;

[0019] Figure 3 A cross-sectional view of a paper shredder provided in accordance with an embodiment of the present invention shows the upper structure of the paper shredder. DETAILED DESCRIPTION

[0020] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0021] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0022] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0023] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0024] See also Figures 1 to 3 The present invention relates to a paper rubbing device 100 and an automatic paper rubbing type shredder using the paper rubbing device 100. The paper rubbing device 100 can rub and feed multiple sheets of paper 300 to a shredder core 200 at a time, so that the shredder core is fully utilized, which helps to improve the shredding efficiency, thereby greatly improving the shredding efficiency of the automatic paper rubbing type shredder. It should be understood that the shredder also includes a chassis, a shredder core 200 disposed in the chassis, and a paper scrap barrel connected to the chassis in a push-pull manner. The paper rubbing device is disposed at the top of the chassis and above the shredder core.

[0025] The paper picking device 100 includes a fixed frame 10, a paper separation assembly 20, a paper picking assembly 30, a paper pushing assembly 50, a paper stop block 40 and a transmission assembly 60, and the paper separation assembly 20, the paper picking assembly 30, the paper pushing assembly 50, the paper stop block 40 and the transmission assembly 60 are all connected to the fixed frame 10.

[0026] The fixing frame 10 is provided with a paper placement opening 11 and a paper transmission channel 12. The paper placement opening is for placing the paper to be shredded, and the paper transmission channel 12 is communicated with the paper placement opening 11 and can be used for synchronous transmission of a plurality of papers.

[0027] The paper separation assembly 20 includes a paper separation wheel 21 and a paper separation wheel shaft 22. The paper separation wheel 21 is sleeved on the paper separation wheel shaft 22 and is located in the paper placement port 11. The paper separation wheel shaft 22 is connected to the transmission assembly 60 and is driven to rotate by the transmission assembly. The paper separation wheel 21 is a circular sheet, and a paper clamping opening 211 is provided thereon. The paper clamping opening extends from the circumferential edge of the paper separation wheel to the center of the circle, and the two side edges of the paper clamping opening are staggered with each other. Preferably, one side edge of the paper clamping opening 211 is perpendicular to the horizontal plane, and the other side edge extends obliquely in a direction away from the paper transmission channel. The paper clamping opening 211 is used to clamp multiple sheets of paper. Specifically, one side edge of the paper clamping opening is arranged to be obliquely inserted into between the sheets of paper and clamp multiple sheets of paper together with the other side edge, and the clamped paper is separated from other sheets of paper by rotation and sent into the paper transmission channel.

[0028] The pickup assembly 30 includes a pickup wheel and a pickup wheel shaft. The pickup wheel is arranged in the paper transmission channel and above the shredder core, and is used to pick up the paper transmitted by the paper separation assembly 20 to the paper transmission channel and send it to the shredder core. The pickup wheel shaft is used to install the pickup wheel on the fixed frame 10. Optionally, the pickup wheel shaft is provided with a pickup wheel at 1 / 4 and 3 / 4 of the length direction, respectively, so that the paper can be picked up from both ends of the paper width direction at the same time. In addition, there are two pickup wheel shafts, and the two pickup wheel shafts are staggered (that is, the two pickup wheel shafts are arranged up and down, and there is a horizontal distance between them). The two pickup wheel shafts are each provided with two pickup wheels, and the pickup wheels on the two pickup wheel shafts are arranged one by one, so that force can be applied to the paper from the upper and lower sides of the paper to ensure that the paper enters the shredder core smoothly for shredding.

[0029] The paper pushing assembly includes a pushing paper board 51, a spring-pressing member 52, and a pushing paper board pressing block 53; the pushing paper board 51 is arranged in the paper placement opening 11 and is located on a side away from the paper transmission channel 12, and a rotating shaft is formed at its upper end; the spring-pressing member is preferably a torsion spring, which is sleeved on the rotating shaft; the fixing frame 10 is provided with a nut column, and a rotating shaft mounting groove 14 is arranged near the nut column and can rotate relative to the rotating shaft mounting groove; the pushing paper board pressing block 53 is provided with a screw hole, and the pushing paper board pressing block 53 is connected to the nut column by means of a screw passing through the screw hole and is covered above the rotating shaft mounting groove 14, and the rotating shaft is embedded in the rotating shaft mounting groove 14. The two ends of the torsion spring are respectively in contact with the pushing paper board and the fixing frame 10 (or the pushing paper board pressing block), and continuously exert force on the pushing paper board 51, so that the lower end of the pushing paper board 51 maintains a tendency to move toward the paper transmission channel 12, so that the pushing paper board always applies thrust to the paper 300, so that the paper to be shredded is always attached to the paper separation wheel 21 and placed.

[0030] The paper stopper 40 includes a fixing portion and a guide portion 41, wherein the fixing portion is provided with ear plates at both ends along the length direction, and the fixing frame 10 is provided with a positioning portion 13 matching the width of the ear plates, and the positioning portion is provided with a threaded hole, and the connection between the fixing portion and the fixing frame is achieved by screws passing through the ear plates and connected to the threaded holes, so that the paper stopper is positioned and installed on the fixing frame 10.

[0031] The guide portion 41 is integrally formed with the fixed portion, and the edge of the connecting position of the guide portion and the fixed portion is arranged coplanar with the end surface of the paper separation wheel 21 close to the paper pickup wheel 31. The other end of the guide portion 41 extends downward along the paper transmission channel 12 and extends to above the paper pickup wheel 31 to ensure that the paper pushed out by the paper separation wheel 21 can smoothly enter the paper pickup assembly 30.

[0032] The transmission assembly is connected to the paper separation assembly 20 and the paper picking assembly 30, and is also used to connect with the transmission mechanism of the shredder core, so that the paper picking assembly 30 and the paper separation assembly 20 are driven by the transmission mechanism of the shredder core to rotate, and are driven by the same driving motor to realize automatic paper separation, paper picking and paper shredding operations, thereby saving costs.

[0033] The spacing between the two side edges of the paper clamping opening is between 1.5 and 2 times the thickness of the paper to be separated at one time, so as to ensure that multiple sheets of paper can be clamped each time and avoid reducing the number of sheets of paper due to bending of the paper.

[0034] In one embodiment, the transmission assembly 60 includes a first bevel gear 61, a second bevel gear 62, a first synchronous system, and a second synchronous system. The paper separation wheel is fixed to one end of the paper separation wheel shaft by a screw with a gasket, the first bevel gear is sleeved on the other end of the paper separation wheel shaft and meshes with the second bevel gear, the second bevel gear is connected to the first synchronous system, and the second synchronous system is connected to the paper picking assembly 30 and connected to the first synchronous system.

[0035] In one embodiment, the transmission ratio of the transmission assembly 60 is configured as follows: the paper separation time of one rotation of the paper separation wheel is equal to the paper rubbing time of the paper rubbing wheel to rub a paper to the shredder core, and is equal to the paper shredding time required for the shredder core to completely shred a paper once, so as to ensure that the paper separation speed of the paper separation wheel matches the paper shredding speed of the shredder core, thereby avoiding paper accumulation in the paper transmission channel 12.

[0036] In one embodiment, the first bevel gear 61 and the second bevel gear 62 are encapsulated in a storage space formed by connecting a pressure cover 23 and a fixing frame 10 to prevent paper scraps or other objects from entering the steering structure composed of the first bevel gear and the second bevel gear to affect the normal operation of the transmission assembly.

[0037] In short, by setting up the paper separation component, multiple sheets of paper can be separated from the pile of paper to be shredded, and transferred to the paper rubbing device, which will be sent to the shredder core for shredding, thereby improving the working efficiency of the automatic paper rubbing shredder.

[0038] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features with similar functions invented in the present invention (but not limited to) to form a technical solution.

[0039] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. A paper picking device, used to be arranged above the shredder core of a shredder to automatically feed paper into the shredder core, characterized in that: It includes a fixed frame, a paper picking assembly and a paper separation assembly all mounted on the fixed frame, and a transmission assembly connected with the paper picking assembly and the paper separation assembly; The fixing frame is provided with a paper placement opening and a paper transmission channel communicating with the paper placement opening; The paper separation assembly comprises a paper separation wheel shaft and a paper separation wheel, the paper separation wheel shaft is connected to the transmission assembly, the paper separation wheel is provided with a paper clamping opening, the paper separation wheel is arranged at the paper placement opening and sleeved on the paper separation wheel shaft, and can be embedded between the papers to clamp a plurality of papers and rotate to deliver them into the paper transmission channel, the paper separation wheel is a circular sheet, and the paper clamping opening is extended along the circumferential edge toward the center of the circle, and one side of the two sides of the paper clamping opening is perpendicular to the horizontal plane, and the other side is inclined in the direction away from the paper pickup assembly; The paper pickup assembly is arranged in the paper transmission channel, including a paper pickup wheel for picking up the paper sent by the paper separation wheel and sending it to the shredder core, and a paper pickup wheel shaft for mounting the paper pickup wheel on a fixed frame; The transmission assembly includes a first bevel gear, a second bevel gear, a first synchronous system, and a second synchronous system. The paper separation wheel is fixed to one end of the paper separation wheel shaft by a screw with a gasket. The first bevel gear is sleeved on the other end of the paper separation wheel shaft and meshes with the second bevel gear. The second bevel gear is connected to the first synchronous system. The second synchronous system is connected to the paper picking assembly and the first synchronous system. The transmission ratio of the transmission assembly is configured as follows: the paper separation time for the paper separation wheel to rotate one circle is equal to the paper picking time for the paper picking wheel to pick up a piece of paper to the shredder core, and is equal to the paper shredding time required for the shredder core to completely shred a piece of paper.

2. The paper picking device according to claim 1, characterized in that: The distance between the two side edges of the paper clamping opening is between 1.5 times and 2 times the thickness of the paper being separated at one time.

3. The paper picking device according to claim 1, characterized in that: The first bevel gear and the second bevel gear are enclosed in a receiving space formed by connecting a gland and a fixing frame.

4. The paper picking device according to claim 1, characterized in that: The paper separation assembly also includes a paper stopper located on the side of the paper separation wheel close to the paper pickup assembly. The lower end of the paper stopper is provided with an arc-shaped guide portion, one end of the guide portion is close to the paper separation wheel, and the other end extends above the paper pickup wheel.

5. The paper picking device according to claim 1, characterized in that: The paper picking device also includes a paper pushing assembly, which includes a paper pushing board and an elastic pressure piece pressed against a side of the paper pushing board away from the paper separating wheel, and the elastic pressure piece continuously applies pressure to the paper pushing board toward the paper separating wheel.

6. The paper picking device according to claim 5, characterized in that: The fixing frame is provided with a nut column, and a shaft mounting groove is arranged near the nut column. The paper pushing assembly also includes a paper pushing paper board pressing block, and the paper pushing paper board pressing block is provided with a screw hole. The paper pushing paper board pressing block is connected to the nut column by means of a screw passing through the screw hole and is covered above the shaft mounting groove. A shaft is arranged on the upper end of the paper pushing paper. The elastic pressure piece is a torsion spring, which is sleeved on the shaft, and the shaft is embedded in the shaft mounting groove.

7. An automatic rubbing type shredder, comprising a chassis, a shredder core arranged inside the chassis, and a rubbing device arranged above the chassis and rubbing the paper to be shredded to send it to the shredder core, characterized in that: The paper pickup device is the paper pickup device according to any one of claims 1 to 6.

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