Automatic paper shredder

Abstract

The utility model discloses an automatic paper shredder which comprises a paper shredder upper cover, a paper shredder lower cover, a paper box, a paper pressing structure assembly and a paper feeding structure assembly, the paper box is arranged above the paper shredder lower cover and forms a containing cavity, and the paper pressing structure assembly is fixedly installed on the lower portion of the paper shredder upper cover. The paper feeding structure assembly comprises a paper feeding shaft used for rolling paper to be shredded into the paper inlet, a driving component used for driving the paper feeding shaft to rotate, a guide shaft opposite to the paper feeding shaft in rotating direction and a one-way bearing arranged at one end of the guide shaft, the paper feeding shaft and the guide shaft are arranged on the two sides of the paper inlet respectively, the guide shaft rotates in a one-way mode, and the one-way bearing is arranged at one end of the guide shaft. And the rotating direction of the guide shaft is opposite to that of the paper feeding shaft. According to the automatic paper shredder, automatic and smooth paper shredding is achieved, the two hands can be liberated, manpower resources can be put into needed places, and under the condition that the amount of shredded paper is large, the paper can be shredded well in order, so that the customer experience feeling is greatly improved, and the market competitiveness of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper shredder manufacturing, in particular to a paper pressing structure and a paper feeding structure of an automatic paper shredder. Background Art

[0002] There are two types of existing shredders. One is a manual shredder that shreds paper by manually feeding paper. In this way, when a large amount of paper needs to be shredded, a person needs to stand next to the shredder to shred all the paper to be shredded. The other is an automatic shredder that automatically feeds paper.

[0003] Among them, manual shredders are manually fed with paper. When encountering a large amount of paper to be shredded, there are only two ways to deal with it: 1) For machines with a small amount of manual feeding, people must always stand next to the machine and wait for the shredder to completely shred the paper to be shredded, which consumes labor costs; 2) Using a machine with a large shredding capacity to shred paper, although this saves labor costs, the machine cost increases, and the machine with a large shredding capacity also takes up space. Therefore, when there is a large amount of waste paper to be shredded, manual shredders will waste human resources, poor customer experience, and thus lead to weak product market competitiveness.

[0004] An automatic paper shredder, for example, a paper feeding mechanism and a fast paper feeding shredder disclosed in the utility model patent with application number CN201721246598.8, wherein the paper feeding mechanism includes a frame, a paper placing board mounted on the frame, a paper pressing part, a paper feeding wheel and a paper abutting wall positioned opposite to each other, a paper placing area for placing paper is formed on the paper placing board, the paper pressing part is located above the paper placing board, the paper pressing part opens and closes relative to the paper placing board to press the paper on the paper placing board, a paper feeding port is provided on the paper placing board, and the paper feeding port is located on one side of the center line of the paper placing area and has a certain distance from the center line of the paper placing area, the paper feeding wheel is mounted on the frame and is located on the side of the paper feeding port away from the center line, the paper abutting wall is located on the side of the paper feeding port close to the center line and cooperates with the paper feeding wheel to form a paper feeding channel, the paper feeding wheel rotates and cooperates with the paper abutting wall to fold the part of the paper pressed by the paper pressing part on the side of the paper feeding wheel along the paper feeding port and transport it into the paper feeding port. The prior art is mostly an automatic paper shredder structure of the above structure, but this paper feeding structure is prone to paper jams when a large amount of paper is shredded. Utility Model Content

[0005] A brief overview of embodiments of the present invention is given below in order to provide a basic understanding of certain aspects of the present invention. It should be understood that the following overview is not an exhaustive overview of the present invention. It is not intended to identify key or important parts of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] In order to solve the paper jam problem that occurs when the automatic shredder in the prior art has a large amount of shredding, the present application provides an automatic shredder that improves the existing paper feeding structure so that the paper to be shredded can enter the paper inlet more smoothly and better, thereby solving the shortcomings of the prior art.

[0007] Specifically, the automatic paper shredder of the utility model comprises an upper cover of the paper shredder, a lower cover of the paper shredder, a paper box, a paper pressing structure assembly and a paper feeding structure assembly; one end of the upper cover of the paper shredder is matched and connected with one end of the lower cover of the paper shredder; the paper box is arranged above the lower cover of the paper shredder and forms a accommodating cavity for placing the paper to be shredded; the lower cover of the paper shredder is provided with a paper inlet; the paper pressing structure assembly is fixedly installed at the lower part of the upper cover of the paper shredder, and is used to apply a certain pressure to the paper to be shredded put into the paper box; the paper feeding structure assembly comprises a paper feeding shaft for rolling the paper to be shredded into the paper inlet, a driving component for driving the paper feeding shaft to rotate, a guide shaft with a direction opposite to that of the paper feeding shaft, and a one-way bearing arranged at one end of the guide shaft, the paper feeding shaft and the guide shaft are respectively arranged on both sides of the paper inlet, the guide shaft is unidirectionally rotating, and the direction of the guide shaft is opposite to that of the paper feeding shaft.

[0008] Furthermore, the driving component is realized by a motor cooperating with a gear transmission structure.

[0009] The utility model adopts the above scheme. When the paper to be shredded is placed on the paper box, the paper to be shredded is rolled into the paper inlet through the paper feed shaft. Because the paper to be shredded is difficult to be concave and smoothly enter the paper inlet under the force of the paper feed shaft, the present application adds a guide shaft at the other end of the paper inlet. Since a one-way bearing is installed at one end of the guide shaft, the guide shaft can only rotate counterclockwise (opposite to the direction of the paper feed shaft). At the same time, the paper feed shaft is driven by the motor to rotate clockwise through gears, and the guide shaft has no power drive. It has two functions: 1. When the paper to be shredded is caught by the blade, the pressure structure component presses on the paper to be shredded, and the paper to be shredded is pressed on the guide shaft at the same time. At this time, rolling friction replaces sliding friction to reduce resistance; 2. When the paper to be shredded is under the force of the paper feed shaft, in order to make the paper to be shredded better enter the paper inlet in a concave shape, we add a guide shaft at the other end of the paper inlet to hinder the smoothness of the paper to be shredded, so that the paper to be shredded can enter the paper inlet better.

[0010] The paper pressing structure assembly comprises a paper pressing board, a paper pressing roller and a plurality of paper pressing springs. The paper pressing roller is arranged on the paper pressing board, and the paper pressing board is fixed to the lower part of the upper cover of the shredder through a plurality of paper pressing springs.

[0011] When the paper to be shredded is put into the paper box, the paper pressing structure component applies a certain pressure to the paper to be shredded, so that the paper to be shredded, the paper feed shaft and the guide shaft generate friction, so that the paper to be shredded can enter the paper inlet better. Through the action of the paper pressing spring, the elastic force acts on the paper pressing board and the paper pressing roller, so that the elastic force is converted into pressure on the paper pressing board and the paper pressing roller. Through the action of pressure, the paper to be shredded, the paper feed shaft and the guide shaft generate friction, and a concave shape occurs, so that the paper is smoothly introduced into the paper inlet for shredding; through this uninterrupted work, the paper to be shredded can achieve the effect of automatic shredding.

[0012] Furthermore, the upper cover of the shredder and the fixed end of the paper pressing plate are both sleeved on a rotating shaft, so as to realize the coaxial rotation of the upper cover of the shredder and the free end of the paper pressing plate.

[0013] Furthermore, the connection position between the upper cover of the shredder and the rotating shaft is located on the outer side of the upper cover of the shredder, so that the paper pressing board can be better covered on the lower cover of the shredder.

[0014] The present application improves the paper feeding structure and adds a one-way rotating guide shaft. The paper feeding structure realized by a single paper feeding shaft (including power transmission) and a one-way guide shaft (without power) grabs the paper at 2 / 3 of the paper, so that the paper to be shredded enters the paper inlet more smoothly and better, thereby solving the problem of easy paper jam in automatic shredders in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention can be better understood by referring to the following description in conjunction with the accompanying drawings, wherein the same or similar reference numerals are used in all drawings to represent the same or similar components. The accompanying drawings together with the following detailed description are included in and form a part of this specification, and are used to further illustrate the preferred embodiments of the present invention and explain the principles and advantages of the present invention. In the accompanying drawings:

[0016] Figure 1 Schematic diagram of the overall structure of the automatic paper shredder of this embodiment;

[0017] Figure 2 is a schematic diagram of the paper feeding structure assembly of this embodiment;

[0018] Figure 3 Schematic diagram of the paper pressing structure assembly of this embodiment. DETAILED DESCRIPTION

[0019] Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the purpose of clarity, the representation and description of components and processes that are not related to the present invention and are known to those of ordinary skill in the art are omitted in the drawings and descriptions.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-Figure 3 The automatic paper shredder of this embodiment includes a paper shredder upper cover 100, a paper shredder lower cover 200, a paper box 300, a paper pressing structure assembly 400 and a paper feeding structure assembly 500; one end of the paper shredder upper cover 100 is matched and connected with one end of the paper shredder lower cover 200; the paper box 300 is arranged above the paper shredder lower cover 200 and forms a containing cavity for placing stacked paper to be shredded; the paper shredder lower cover 200 is provided with a paper inlet 201; the paper pressing structure assembly 400 is fixedly installed at the lower part of the paper shredder upper cover 100, and is used to apply a certain pressure to the paper to be shredded placed in the paper box 300.

[0022] The paper feeding structure assembly 500 includes a paper feeding shaft 501 for rolling the paper to be shredded into the paper inlet 201, a gear transmission component 502 for driving the paper feeding shaft 501 to rotate, a guide shaft 503 that rotates in the opposite direction to the paper feeding shaft 501, and a one-way bearing 504 arranged at one end of the guide shaft 503. The paper feeding shaft 501 and the guide shaft 503 are respectively arranged on both sides of the paper inlet 201. The guide shaft 503 rotates in one direction, and the direction of the guide shaft 503 is opposite to that of the paper feeding shaft 501. The gear transmission component 502 is realized by a motor cooperating with a first paper separation gear and a second paper separation gear.

[0023] The paper pressing structure assembly 400 includes a paper pressing board 401 , a paper pressing roller 402 and a plurality of paper pressing springs 403 . The paper pressing roller 402 is disposed on the paper pressing board 401 . The paper pressing board 401 is fixed to the lower part of the shredder upper cover 100 via a plurality of paper pressing springs 403 .

[0024] In addition, the fixed ends of the shredder upper cover 100 and the paper pressing plate 401 can be sleeved on the same rotating shaft, so as to realize the coaxial rotation of the free ends of the shredder upper cover 100 and the paper pressing plate 401. At the same time, the connection position between the shredder upper cover 100 and the rotating shaft is located on the outside of the shredder upper cover 100, so that the paper pressing plate 401 can be better covered on the shredder lower cover 200.

[0025] The automatic paper shredder of the utility model realizes automatic and smooth paper shredding, which not only frees hands and allows human resources to be invested where they are needed, but also can shred paper in an orderly manner in the case of a large amount of paper shredding, thereby greatly increasing customer experience and improving the market competitiveness of the product.

[0026] Figure 1 It is a component of the whole machine. When the paper to be shredded is put into the paper box, the upper cover is closed, and the paper to be shredded enters the automatic shredding mode. The machine stops working after the paper is shredded. The automatic shredder mainly consists of two parts: one: the paper feeding structure component; the other: the paper pressing structure component.

[0027] Figure 2 The paper feeding structure assembly is a paper feeding structure assembly. When the paper to be shredded is placed on the paper box 300, the paper to be shredded is rolled into the paper inlet 201 through the paper feeding shaft 501. Because the paper to be shredded is difficult to be concave and smoothly enter the paper inlet 201 under the force of the paper feeding shaft 501, the present application adds a guide shaft 503 at the other end of the paper inlet 201. Since a one-way bearing 504 is installed at one end of the guide shaft 503, the guide shaft 503 can only rotate counterclockwise (opposite to the rotation direction of the paper feeding shaft 501). Meanwhile, the paper feed shaft 501 is driven by the motor to rotate clockwise through gears, and the guide shaft 503 is not driven by power, and has two functions: 1. When the paper to be shredded is caught by the blade, the pressure structure component presses the paper to be shredded, and the paper to be shredded is pressed on the guide shaft 503 at the same time, and the rolling friction replaces the sliding friction to reduce the resistance; 2. When the paper to be shredded is exerted by the force of the paper feed shaft 501, in order to make the paper to be shredded better enter the paper inlet 201 in a concave shape, we add the guide shaft 503 at the other end of the paper inlet 201 to prevent the paper to be shredded from being smooth, so that the paper to be shredded can enter the paper inlet 201 better. In actual design, the one-way guide shaft can also be realized by using a blade or a single-roll paper feed shaft.

[0028] Figure 3The paper pressing structure component is a paper pressing structure component. When the paper to be shredded is put into the paper box 300, in order to generate friction between the paper to be shredded and the paper feed shaft 501 and the guide shaft 503, so that the paper to be shredded can enter the paper inlet 201 better, a certain pressure needs to be applied to the paper to be shredded. At this time, a paper pressing structure is needed to generate pressure. This structure component includes a paper pressing board 401, a paper pressing roller 402, a paper pressing spring 403, and an upper cover. Through the action of the paper pressing spring 403, the elastic force acts on the paper pressing board 401 and the paper pressing roller 402, so that the elastic force is converted into pressure on the paper pressing board 401 and the paper pressing roller 402. Through the action of pressure, the paper to be shredded and the paper feed shaft 501 and the guide shaft 503 generate friction, which is concavely deformed and smoothly introduced into the paper inlet 201 for shredding. Through this uninterrupted work, the paper to be shredded can achieve an automatic shredding effect.

[0029] The present application realizes automatic paper feeding through a paper pressing structure and a paper feeding structure. At the same time, the paper feeding structure is performed through a single paper feeding shaft 501 (including power transmission) and a one-way guide shaft 503 (without power), which grabs the paper at 2 / 3 of the paper, thereby achieving smooth and stable paper shredding.

[0030] For the traditional manual shredder method, this application realizes the automatic shredding function; for the existing automatic shredders, this application utilizes a single-roller paper feed (including power) structure + a single guide shaft to greatly improve the stability of the product and reduce the product cost, thereby improving the product's cost performance, which is beneficial to the competition of this type of machine in the market.

[0031] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0032] Although the utility model has been disclosed above through the description of the specific embodiments of the utility model, it should be understood that all the above embodiments and examples are exemplary rather than restrictive. Those skilled in the art can design various modifications, improvements or equivalents of the utility model within the spirit and scope of the attached claims. These modifications, improvements or equivalents should also be considered to be included in the protection scope of the utility model.

Claims

1. An automatic paper shredder, characterized in that: It includes a shredder upper cover, a shredder lower cover, a paper box, a paper pressing structure component and a paper feeding structure component; One end of the shredder upper cover is cooperatively connected with one end of the shredder lower cover; The paper box is arranged above the lower cover of the shredder and forms a containing cavity for placing the paper to be shredded; The lower cover of the paper shredder is provided with a paper inlet; The paper pressing structure assembly is fixedly mounted on the lower part of the upper cover of the shredder, and is used to apply a certain pressure to the paper to be shredded placed in the paper box; The paper feeding structure assembly includes a paper feeding shaft for rolling the paper to be shredded into the paper feeding port, a driving component for driving the paper feeding shaft to rotate, a guide shaft with a direction opposite to that of the paper feeding shaft, and a one-way bearing arranged at one end of the guide shaft. The paper feeding shaft and the guide shaft are respectively arranged on both sides of the paper feeding port, the guide shaft is unidirectionally rotating, and the direction of the guide shaft is opposite to that of the paper feeding shaft.

2. The automatic paper shredder according to claim 1, characterized in that: The driving component is realized by a motor cooperating with a gear transmission structure.

3. The automatic paper shredder according to claim 1, characterized in that: The paper pressing structure assembly comprises a paper pressing board, a paper pressing roller and a plurality of paper pressing springs. The paper pressing roller is arranged on the paper pressing board, and the paper pressing board is fixed to the lower part of the upper cover of the shredder through a plurality of paper pressing springs.

4. The automatic paper shredder according to claim 3, characterized in that: The upper cover of the shredder and the fixed end of the paper pressing plate are both sleeved on a rotating shaft, so as to realize the coaxial rotation of the upper cover of the shredder and the free end of the paper pressing plate.

5. The automatic paper shredder according to claim 4, characterized in that: The connection position between the upper cover of the shredder and the rotating shaft is located on the outer side of the upper cover of the shredder, so that the pressing paper board can be better covered on the lower cover of the shredder.

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