Novel self-suction paper structure

Abstract

The utility model provides a novel self-suction paper structure which comprises a base, a rubber roller for conveying paper is arranged on the base, a plurality of guide ribs are arranged on the surface of the base and arranged in front of the paper feeding side of the rubber roller side by side, a guide portion is arranged on one side, close to the rubber roller, of each guide rib, and an upward curved surface is arranged on the upper surface of each guide portion. The paper guiding device is used for guiding paper to abut against the rubber roller in the tangential direction of the rubber roller. A plurality of guide ribs are arranged on the upper surface of the base on the front side of the paper feeding direction of the rubber roller, so that the lower surface of paper is only in contact with the ribs on the surface of the base, the contact area can be reduced, and the effect of reducing paper feeding resistance is achieved; the guide rib is provided with the upwards-bent guide part, the head end of the paper can enter and make contact with the rubber roller in the tangential direction of the rubber roller, if no curved-surface paper is fed, the paper is likely to hit the rubber roller, or the paper is blocked when the paper enters from the other side of the rubber roller and is pushed back by the rubber roller, and the paper conveying action of the rubber roller can be smoother through the guide part.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a novel self-absorbent paper structure. Background Art

[0002] In the design of traditional portable printers, the upper surface of the paper feed bin is often set as a flat surface without any objects. The original intention of such a design may be to simplify the structure, reduce costs or for other engineering considerations. However, in actual use, this flat upper surface of the paper feed bin brings a series of problems.

[0003] When the printer starts working, the rubber roller will start to absorb and transport the paper. However, since the lower surface of the paper is in close contact with the entire upper surface of the paper feed bin, the friction will inevitably increase. This friction will not only cause greater resistance to the paper during transportation, making the paper feeding unsmooth, but may also require the rubber roller to provide a greater driving force to smoothly drag the paper. This not only affects the printing speed and efficiency of the printer, but may also cause premature wear of the rubber roller, increasing the maintenance cost of the printer. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a novel self-absorbent paper structure.

[0005] The utility model is realized by the following method: a novel self-absorbent paper structure, comprising a base, a rubber roller for conveying paper is arranged on the base, a plurality of guide ribs are arranged on the surface of the base, the plurality of guide ribs are arranged side by side in front of the paper feeding side of the rubber roller, a guide part is arranged on the side of the guide rib close to the rubber roller, and an upward curved surface is arranged on the upper surface of the guide part for guiding the paper to approach the rubber roller along the tangent direction of the rubber roller.

[0006] Preferably, a plurality of the guide ribs are arranged at intervals.

[0007] Preferably, the guide ribs have a width that gradually decreases from bottom to top.

[0008] Preferably, a transition portion is provided on the side of the guide rib away from the rubber roller, the transition portion is inclined downward from the side close to the rubber roller to the side away from the rubber roller, and the height of one end of the transition portion away from the rubber roller is flush with the upper surface height of the base.

[0009] Preferably, an upper end surface of the guide rib between the guide portion and the transition portion is parallel to an upper surface of the base.

[0010] Preferably, the upper curved surface of the guide portion is connected to a lower curved surface on one side close to the rubber roller, and the upper surface of the lower curved surface at one end close to the rubber roller is tangent to a surface parallel to the upper surface of the base.

[0011] Preferably, paper limiting parts are respectively provided on both sides of the surface of the base in front of the paper feeding side of the rubber roller in the paper feeding direction.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a new self-absorbent paper structure. Compared with the prior art, the utility model has at least the following technical effects: 1. By providing a plurality of guide ribs on the upper surface of the base in front of the paper feeding direction of the rubber roller, the lower surface of the paper only contacts with a few ribs on the surface of the base, which can reduce the contact area, so as to achieve the effect of reducing the resistance during paper feeding; and the guide rib is provided with an upward curved guide portion on the side close to the rubber roller, so that the head end of the paper can enter the contact rubber roller along the tangent direction of the rubber roller. If there is no curved surface, the paper feeding is easy to hit the rubber roller, or the paper feeding from the other side of the rubber roller is pushed back by the rubber roller, which will cause paper jam. The curved guide portion can make the action of the rubber roller sucking paper smoother. 2. The plurality of guide ribs are arranged at intervals to facilitate the dispersion of force to ensure the smooth movement of the paper, avoid warping in the vertical direction of the paper feeding direction, and help to feed the paper smoothly. 3. The guide rib is designed to be a structure with a small top and a large bottom, which can also help to reduce the contact area with the paper and help the rubber roller to suck the paper more smoothly. 4. The transition part is set as an inclined surface so that the end of the inclined surface away from the rubber roller is flush with the upper surface of the base, so that the paper can smoothly enter onto the guide rib when pushed in. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a novel self-absorbent paper structure of the utility model.

[0014] Figure 2 It is a top view of a novel self-absorbent paper structure of the utility model.

[0015] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at point A in the middle.

[0016] Figure 4 yes Figure 3 A local enlarged schematic diagram of point B in the middle.

[0017] Figure 5 It is a state diagram of paper feeding of a novel self-absorbent paper structure of the utility model.

[0018] Explanation of the accompanying drawings: 1. base; 2. rubber roller; 3. guide ribs; 31. guide part; 32. transition part; 4. paper limiting part; 5. paper. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] See also Figures 1 to 5 A novel self-suction paper structure comprises a base 1, on which a rubber roller 2 for conveying paper is disposed, and on the surface of the base 1 a plurality of guide ribs 3 are disposed, and the plurality of guide ribs 3 are arranged side by side in front of the paper feeding side of the rubber roller 2, and a guide portion 31 is disposed on the side of the guide rib 3 close to the rubber roller 2, and an upper surface of the guide portion 31 is provided with an upward curved surface for guiding the paper 5 to approach the rubber roller 2 along the tangent direction of the rubber roller 2. By providing a plurality of guide ribs 3 on the upper surface of the base 1 at the front side of the paper feeding direction of the rubber roller 2, the lower surface of the paper 5 is in contact with only a few ribs on the surface of the base 1, so that the contact area can be reduced, thereby achieving the effect of reducing the resistance during paper feeding; and an upward curved guide portion 31 is provided on the side of the guide rib 3 close to the rubber roller 2, so that the leading end of the paper 5 can enter and contact the rubber roller 2 along the tangent direction of the rubber roller 2. If there is no curved surface, the paper 5 is likely to hit the rubber roller 2 when feeding, or the paper is fed from the other side of the rubber roller 2 and pushed back by the rubber roller 2, which will cause paper jam. The curved guide portion 31 can make the action of the rubber roller 2 conveying paper smoother.

[0021] See also Figures 1 to 5 Preferably, the plurality of guide ribs 3 are arranged at intervals. The plurality of guide ribs 3 are arranged at intervals to facilitate the dispersion of force to ensure the smooth movement of the paper 5, avoid warping in the vertical direction of the paper feeding direction, and facilitate smooth paper feeding.

[0022] See also Figures 1 to 5 Preferably, the guide rib 3 is gradually reduced in width from bottom to top. Designing the guide rib 3 to be small at the top and large at the bottom can also help reduce the contact area with the paper 5, and help the rubber roller 2 to transport the paper more smoothly.

[0023] See also Figures 1 to 5 Preferably, a transition portion 32 is provided on the side of the guide rib 3 away from the rubber roller 2, and the transition portion 32 is inclined downward from the side close to the rubber roller 2 to the side away from the rubber roller 2, and the height of the end of the transition portion 32 away from the rubber roller 2 is flush with the upper surface of the base 1. The transition portion 32 is set as an inclined surface so that the end of the inclined surface away from the rubber roller 2 is flush with the upper surface of the base 1, so that the paper 5 can smoothly enter the guide rib 3 when pushed in.

[0024] See also Figures 1 to 5 Preferably, the upper end surface of the guide rib 3 between the guide portion 31 and the transition portion 32 is parallel to the upper surface of the base 1 , so as to facilitate smooth transmission of the paper 5 .

[0025] See also Figure 4Preferably, the upper curved surface of the guide portion 31 is connected to a lower curved surface on one side close to the rubber roller 2, and the upper surface of the lower curved surface close to the rubber roller 2 is tangent to a surface parallel to the upper surface of the base 1. This prevents the paper 5 from being unable to contact the rubber roller 2 or being blocked by the upper curved surface of the guide portion 31 due to excessive curvature at the tail end of the guide portion 31.

[0026] See also Figure 1 , Figure 2 , Figure 5 Preferably, paper limiting parts 4 are respectively provided on both sides of the surface of the base 1 in front of the paper feeding side of the rubber roller 2 in the paper feeding direction, so that the paper 5 can be fed in a direction perpendicular to the axial direction of the rubber roller 2.

[0027] The utility model has the following working principle:

[0028] When conveying paper, the paper 5 is placed on the base 1, and the paper 5 is pushed toward the rubber roller 2. The paper 5 moves onto the guide rib 3 through the transition portion 32 of the guide rib 3, and the paper 5 continues to move to the guide portion 31. The paper 5 passes through the curved surface of the guide portion 31 of the guide rib 3, so that the end of the paper 5 facing the rubber roller 2 is warped, and the guide portion 31 has an inverse curved surface at the end close to the rubber roller 2 to prevent the guide portion 31 from blocking the paper feeding; after being warped, the paper 5 continues to move and contacts the rubber roller 2 from the tangential direction of the rubber roller 2, and the rubber roller 2 can absorb the paper 5 and move it from the upper side of the rubber roller 2 to the lower side of the rubber roller 2, and due to the existence of the guide portion 31 of the guide rib 3, the paper 5 will not directly enter from the lower side of the rubber roller 2 (here the moving direction of the rubber roller 2 is opposite to the feeding direction of the paper 5, if the paper 5 contacts the rubber roller 2 here, there will be a directional pushing action to cause paper jam). By providing a plurality of guide ribs 3 on the upper surface of the base 1 at the front side of the paper feeding direction of the rubber roller 2, the lower surface of the paper 5 is in contact with only a few ribs on the surface of the base 1, so that the contact area can be reduced, thereby achieving the effect of reducing the resistance during paper feeding; and an upward curved guide portion 31 is provided on the side of the guide rib 3 close to the rubber roller 2, so that the leading end of the paper 5 can enter and contact the rubber roller 2 along the tangent direction of the rubber roller 2. If there is no curved surface, the paper 5 is likely to hit the rubber roller 2 when feeding, or the paper is fed from the other side of the rubber roller 2 and pushed back by the rubber roller 2, which will cause paper jam. The curved guide portion 31 can make the action of the rubber roller 2 conveying paper smoother.

[0029] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0030] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0031] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0032] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the scope of protection of the utility model.

Claims

1. A novel self-absorbent paper structure, comprising a base, on which a rubber roller for conveying paper is provided, characterized in that: A plurality of guide ribs are arranged on the surface of the base, and the plurality of guide ribs are arranged side by side in front of the paper feeding side of the rubber roller. A guide portion is arranged on the side of the guide rib close to the rubber roller, and an upward curved surface is provided on the upper surface of the guide portion for guiding the paper to approach the rubber roller along the tangential direction of the rubber roller.

2. A novel self-priming paper structure according to claim 1, characterized in that: A plurality of guide ribs are arranged at intervals.

3. A novel self-priming paper structure according to claim 2, characterized in that: The guide ribs are gradually reduced in width from bottom to top.

4. A novel self-priming paper structure according to claim 1, characterized in that: A transition portion is provided on the side of the guide rib away from the rubber roller. The transition portion is inclined downward from the side close to the rubber roller to the side away from the rubber roller. The height of one end of the transition portion away from the rubber roller is flush with the height of the upper surface of the base.

5. A novel self-priming paper structure according to claim 4, characterized in that: The upper end surface of the guide rib between the guide portion and the transition portion is parallel to the upper surface of the base.

6. A novel self-priming paper structure according to claim 1, characterized in that: The upper curved surface of the guide part is connected with a lower curved surface on one side close to the rubber roller, and the upper surface of the lower curved surface close to one end of the rubber roller is tangent to a surface parallel to the upper surface of the base.

7. A novel self-priming paper structure according to claim 6, characterized in that: Paper limiting parts are respectively arranged on both sides of the surface of the base in front of the paper feeding side of the rubber roller in the paper feeding direction.

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