Paper outlet structure and printer

Abstract

The application provides a paper outlet structure and a printer. The paper outlet structure comprises an upper support, a lower support and a paper discharge wheel set. The paper discharge wheel set comprises a driving wheel installed on the upper support and an idler wheel installed on the lower support. A paper outlet channel is formed between the upper support and the lower support. A plurality of upper guide structures protrude downward into the paper outlet channel on the upper support. A plurality of lower guide structures protrude upward into the paper outlet channel on the lower support. The upper guide structures and the lower guide structures are arranged simultaneously on the paper outlet. The paper is curved in a wave shape during the discharging process, so that the rigidity of the paper is increased and the paper is discharged in a relatively straight state.

Description

Technical Field

[0001] This invention relates to the field of printer technology, specifically to a paper output structure and a printer. Background Technology

[0002] The paper output tray is a crucial component of a printer, through which the printer feeds processed paper to the paper tray. Most common paper output trays on the market consist of several sets of opposing paper ejector rollers. Each set includes a rubber ejector roller and an idler roller, which are held together by spring force. As the paper passes through the ejector rollers, the friction between the rollers and the paper ejects it. However, relying solely on the paper ejector roller assembly for support sometimes fails to guarantee sufficient paper rigidity. If the paper lacks rigidity when leaving the output tray, the leading edge may droop downwards. As more of the paper is ejected, this leading edge may droop to the bottom of the paper tray, potentially causing curling, paper jams, and poor paper stacking.

[0003] Therefore, it is necessary to provide an improved paper output structure and printer to solve the above problems. Summary of the Invention

[0004] This application provides a paper output structure and printer that improves paper rigidity and facilitates paper ejection.

[0005] This application discloses a paper outlet structure, including an upper support, a lower support, and a paper discharge wheel assembly. The paper discharge wheel assembly includes a drive wheel installed on the upper support and an idler wheel installed on the lower support. A paper outlet channel is formed between the upper support and the lower support. The upper support is provided with a plurality of upper guide structures that protrude downward into the paper outlet channel, and the lower support is provided with a plurality of lower guide structures that protrude upward into the paper outlet channel.

[0006] Furthermore, the upper guide structure and the lower guide structure are staggered along the length of the lower support, and the height of the bottom end of the upper guide structure is lower than the height of the top end of the lower guide structure.

[0007] Furthermore, the lower support is provided with several main working sections and connecting sections located between two adjacent main working sections; the idler wheel and the lower guide structure are arranged on different main working sections.

[0008] Furthermore, the lower guide structure includes a first lower guide structure and a second lower guide structure, wherein the first lower guide structure is disposed within the main working section and the second lower guide structure is disposed on the connecting section.

[0009] Furthermore, the first lower guide structure is distributed in three points within the main working section, with two points located on both sides of the main working section; the second lower guide structure is disposed on the connecting section located in the middle of the lower support.

[0010] Furthermore, the idler wheel is disposed on two main working sections near the middle of the lower support, and the lower guide structure is disposed on two main working sections near both sides of the lower support.

[0011] Furthermore, the lower guide structure is in the form of a thin sheet, and the lower guide structure includes a connecting edge connected to the lower support, a guide edge extending obliquely upward toward the paper output channel, and a vertical edge toward the outside of the paper output channel. The connection between the guide edge and the vertical edge forms an arc-shaped angle that contacts the paper.

[0012] Furthermore, the upper guide structure and the lower guide structure form a wave-shaped structure within the paper output channel, and the lower guide structure is located in front of the upper guide structure in the paper output direction.

[0013] Furthermore, the upper guide structures are evenly distributed on the upper support; the number of upper guide structures is greater than the number of lower guide structures; the upper guide structures extend downward but not beyond the bottom of the drive wheel, and the lower guide structures extend upward beyond the top of the idler wheel.

[0014] This application also discloses a printer, including a body and a paper output structure as described above.

[0015] Compared with the prior art, the beneficial effect of this application is that: an upper guide structure and a lower guide structure protruding into the paper output channel are respectively provided on the upper and lower supports of the paper output port, so that the paper is subjected to the force from the two guide structures at the same time during the discharge process, thereby increasing the rigidity of the paper and allowing the paper to be discharged in a relatively straight state.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0018] Figure 1 This is a top view of the printer of this invention.

[0019] Figure 2 It is along Figure 1 A cross-sectional view along line AA in the middle.

[0020] Figure 3 yes Figure 2 A magnified view of a section at point I.

[0021] Figure 4 This is a cross-sectional view of the paper discharge roller assembly of the paper outlet structure of the present invention.

[0022] Figure 5 yes Figure 3 A magnified view of section II in the middle.

[0023] Figure 6 It is along Figure 5 A cross-sectional view of the DD line.

[0024] Figure 7 yes Figure 3 A magnified view of section III in the middle.

[0025] Figure 8 It is along Figure 7 A cross-sectional view of the EE line.

[0026] Explanation of reference numerals: Upper bracket, 10; Printer, 100; Drive wheel, 11; Upper guide structure, 12; Lower bracket, 20; Idler wheel, 21; Lower guide structure, 22; Main working section, 23; Connecting section, 24; First lower guide structure, 221; Second lower guide structure, 222; Guide edge, 223; Vertical edge, 224; Arc-shaped corner, 225; Paper output channel, 30; Machine body, 40. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0028] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0029] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0030] The embodiments described in this specification will now be described in detail.

[0031] like Figures 1 to 4 As shown, the present invention provides a paper outlet structure, including an upper support 10, a lower support 20, and a paper discharge wheel assembly. The paper discharge wheel assembly includes a drive wheel 11 mounted on the upper support 10 and an idler wheel 21 mounted on the lower support 20, forming a paper outlet channel 30 between the upper support 10 and the lower support 20. The upper support 10 is provided with a plurality of upward guide structures 12 protruding downward into the paper outlet channel 30, and the lower support 20 is provided with a plurality of downward guide structures 22 protruding upward into the paper outlet channel 30.

[0032] The upper guide structures 12 are evenly distributed on the upper support 10, and the number of upper guide structures 12 is greater than the number of lower guide structures 22. Along the length of the lower support 20, the upper guide structures 12 and lower guide structures 22 are staggered. In the paper output direction, the lower guide structure 22 is located in front of the upper guide structure 12, meaning that during paper output, the paper first contacts the upper guide structure 12 and then the lower guide structure 22.

[0033] The upper guide structure 12 extends downward from the upper bracket 10, and its bottom height is lower than or equal to the bottom height of the drive wheel 11. The lower guide structure 22 extends upward from the lower bracket 20, and its top height is higher than or equal to the top height of the idler wheel 21. The bottom height of the upper guide structure 12 is lower than the top height of the lower guide structure 22.

[0034] Specifically, such as Figure 4 As shown, in this embodiment, the upper guide structure 12 extends downward but does not exceed the bottom of the drive wheel 11, and the lower guide structure 22 extends upward beyond the top of the idler wheel 21.

[0035] like Figure 3As shown, in this embodiment, the lower support 20 is provided with four main working sections 23, which are distributed sequentially at intervals, and a connecting section 24 is provided between adjacent main working sections 23. The dimensions of each main working section 23 are approximately the same in the length direction of the lower support 20. The idler wheel 21 and the lower guide structure 22 are respectively provided on different main working sections 23. Specifically, the idler wheel 21 is provided on the two main working sections 23 near the middle of the lower support 20, and the lower guide structure 22 is provided on the two main working sections 23 near the two sides of the lower support 20.

[0036] The main working section 23 on the lower support 20 is typically entirely used to house the idler wheels 21. This invention reduces manufacturing costs by eliminating the idler wheels 21 from the two main working sections 23 on both sides of the lower support 20. Simultaneously, the lower guide structure 22 is provided on these two main working sections 23 to provide sufficient support for the discharged paper. The lower guide structure 22 is staggered from the upper guide structure 12, causing the paper to be wavy and discharged in a relatively straight manner.

[0037] Specifically, the lower guide structure 22 includes a first lower guide structure 221 and a second lower guide structure 222. The first lower guide structure 221 is disposed on the main working sections 23 on the left and right sides. The second lower guide structure 222 is disposed on the connecting section 24 located in the middle of the lower support 20.

[0038] like Figures 5 to 6 As shown, the first lower guide structure 221 is distributed in a three-point configuration within the main working section 23, with two points located on either side of the main working section 23. The first lower guide structure 221 is sheet-like and includes a connecting edge (not shown), a guiding edge 223, and a vertical edge 224. The connecting edge is connected to the lower support 20. The guiding edge 223 faces the paper output channel 30 and extends obliquely upward to guide the paper output. The vertical edge 224 faces outward from the paper output channel 30 and is perpendicular to the paper output plane.

[0039] The connection between the guide edge 223 and the vertical edge 224 forms an arc-shaped corner 225, which contacts the paper and provides support. The arc-shaped corner 225 is higher than the upper guide structure 12 and is located in front of the upper guide structure 12 in the paper output direction. The arc-shaped corner 225 and the upper guide structure 12 work together to apply opposite forces in the vertical direction to the paper, causing the paper to undergo a wavy deformation.

[0040] like Figures 7 to 8As shown, the second lower guide structure 222 is distributed in a two-point configuration within the main working section 23. The second lower guide structure 222 is sheet-like and also includes a connecting edge (not shown), a guiding edge 223, and a vertical edge 224. The connecting edge is connected to the lower support 20. The guiding edge 223 faces the paper output channel 30 and extends obliquely upwards to guide the paper output. The vertical edge 224 faces outwards from the paper output channel 30 and is perpendicular to the paper output plane.

[0041] The connection between the guide edge 223 and the vertical edge 224 forms an arc-shaped corner 225, which contacts the paper and provides support. The arc-shaped corner 225 is higher than the upper guide structure 12 and is located in front of the upper guide structure 12 in the paper output direction. The arc-shaped corner 225 and the upper guide structure 12 work together to apply opposite forces in the vertical direction to the paper, causing the paper to undergo a wavy deformation.

[0042] This application also provides a printer 100, which includes a body 40 and the aforementioned paper output structure.

[0043] This application incorporates upper and lower guide structures protruding into the paper output channel at the upper and lower supports of the paper output tray. This allows the paper to bend and form a wave shape during discharge, increasing its rigidity and ensuring it exits in a relatively straight position. This prevents the paper from curling at the leading edge due to insufficient rigidity. Curling can easily block the paper output tray, preventing subsequent paper from passing and causing paper jams. Increased paper rigidity prevents curling and eliminates these jamming problems, thus optimizing the paper stacking performance on the output tray.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A paper outlet structure, characterized in that, It comprises: The upper support, the lower support and the paper discharge wheel set, the paper discharge wheel set comprises a driving wheel installed on the upper support and an idler wheel installed on the lower support, a paper outlet channel is formed between the upper support and the lower support; the upper support is provided with a plurality of upper guide structures protruding downward into the paper outlet channel, and the lower support is provided with a plurality of lower guide structures protruding upward into the paper outlet channel; the lower guide structure comprises a connecting edge connected with the lower support, a guide edge extending upwardly and obliquely toward the paper outlet channel, and a vertical edge toward the outside of the paper outlet channel, and the connecting portion of the guide edge and the vertical edge forms an arc-shaped corner position in contact with the paper; the arc-shaped corner position is higher than the upper guide structure, and the arc-shaped corner position is located in front of the upper guide structure in the paper discharge direction.

2. The paper outlet structure according to claim 1, characterized in that, The upper guide structure and the lower guide structure are staggered in the length direction of the lower support, and the height of the bottom end of the upper guide structure is lower than the height of the top end of the lower guide structure.

3. The paper outlet structure according to claim 1, characterized in that, The lower support is provided with a plurality of main working sections and a connecting section between adjacent two main working sections; the idler wheel and the lower guide structure are arranged on different main working sections.

4. The paper outlet structure according to claim 3, characterized in that, The lower guide structure comprises a first lower guide structure and a second lower guide structure, the first lower guide structure is arranged in the main working section, and the second lower guide structure is arranged on the connecting section.

5. The paper outlet structure according to claim 4, characterized in that, The first lower guide structure is distributed in three points in the main working section, and two points are located on both sides of the main working section; the second lower guide structure is arranged on the connecting section located in the middle of the lower support.

6. The paper outlet structure according to claim 3, wherein The idler wheel is arranged on two main working sections close to the middle of the lower support, and the lower guide structure is arranged on two main working sections close to both sides of the lower support.

7. The paper outlet structure according to claim 1, wherein The lower guide structure is in the form of a sheet.

8. The paper outlet structure according to claim 1, wherein The upper guide structure and the lower guide structure form a wave-shaped structure in the paper outlet channel, and the lower guide structure is located in front of the upper guide structure in the paper discharge direction.

9. The paper outlet structure according to claim 1, wherein The upper guide structures are uniformly distributed on the upper support; the number of the upper guide structures is greater than the number of the lower guide structures; the upper guide structures extend downward without exceeding the bottom of the driving wheel, and the lower guide structures extend upward beyond the top of the idler wheel.

10. A printer characterized by comprising: It comprises a machine body and a paper outlet structure as claimed in any one of claims 1-9.

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