Paper rubbing mechanism of ink-jet printer

Abstract

The utility model relates to the technical field of printers, in particular to a paper pickup mechanism of an ink-jet printer, which comprises an ink-jet printer body, a paper disc is mounted on the ink-jet printer body, a paper feeding assembly is arranged on the paper disc, the paper feeding assembly comprises a rotating rod rotationally connected with the paper disc, a paper pickup wheel is fixedly arranged in the middle of the outer surface of the rotating rod, and the paper pickup wheel is connected with the paper disc. A cleaning assembly used for cleaning the pickup roller is arranged at the position, corresponding to the pickup roller, of the paper disc. Through the arrangement of the cleaning assembly, the supporting rod and the quick detaching mechanism, firstly, when the bristle pieces are abraded, the abraded portions of the bristle pieces can be compensated through cooperation of the elastic pieces and the pushing blocks, the service life of the single bristle piece is effectively prolonged, secondly, cleaned paper fibers or dust can be collected through the shell, follow-up centralized treatment is facilitated, and the cleaning efficiency is improved. And thirdly, the supporting rod is matched with the quick release mechanism, so that the supporting rod can be conveniently mounted or dismounted, paper fibers or dust collected in the shell can be conveniently treated, and the bristle part can be conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a paper picking mechanism of an inkjet printer. Background Art

[0002] Inkjet printers were developed after dot matrix printers and use a non-impact working method. Inkjet printers print by turning colored liquid ink into tiny particles through a nozzle and spraying them onto printing paper.

[0003] The pickup roller of the printer is the wheel on the printer that can pull the paper off the paper pile. The pickup roller is generally composed of two parts. The middle part is a relatively hard plastic component. Its function is to carry the rubber wheel for picking up the paper and to install the pickup roller assembly.

[0004] However, in actual application, after the pickup roller has been used for a period of time, paper fibers or dust will stick to the surface of the pickup roller, affecting the roughness of the surface of the pickup roller, which will cause the pickup roller to not pull paper smoothly or even fail to pull paper, and printing cannot proceed normally.

[0005] Conventional cleaning methods exist, such as a printer with an automatic paper pickup roller cleaning method disclosed in Chinese Patent Publication No. CN210126950U. The printer with an automatic paper pickup roller cleaning method automatically cleans the paper pickup roller when the printer is working normally to clean the attachments on the surface, so that the paper pickup roller can draw paper smoothly.

[0006] However, compared with the prior art of the related art, since the cleaned paper fibers or dust cannot be collected well, the paper fibers or dust dropped during cleaning will fall onto the paper again and then adhere to the surface of the paper pickup wheel, resulting in poor cleaning effect. At the same time, the brush will wear out during use. After a long period of friction, the brush will lose its cleaning effect, resulting in a short service life of a single brush and a cumbersome and inconvenient replacement process. Utility Model Content

[0007] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a paper picking mechanism for an inkjet printer.

[0008] The purpose of the utility model is achieved through the following technical solutions: a paper pickup mechanism of an inkjet printer, comprising an inkjet printer body, a paper tray installed on the inkjet printer body, a paper feeding assembly on the paper tray, the paper feeding assembly comprising a rotating rod rotatably connected to the paper tray, a paper pickup wheel fixedly arranged in the middle of the outer surface of the rotating rod, a cleaning assembly for cleaning the paper pickup wheel arranged at a position of the paper tray corresponding to the paper pickup wheel; the cleaning assembly comprises a shell for paper fibers or dust, a brush piece is fixedly installed inside the shell, the brush piece fits the paper pickup wheel, the shell is in an arc shape, and the cross-section of the shell is one-third of a circle, support rods are fixedly arranged at both ends of the shell, and quick-release mechanisms are arranged at positions of the paper tray corresponding to the two support rods.

[0009] Preferably, the quick-release mechanism comprises a transverse slide groove and a longitudinal slide groove provided on the paper tray, a push block is slidably arranged inside the transverse slide groove, and the push block is cooperatively connected with the transverse slide groove through an elastic member.

[0010] Preferably, the cross section of the support rod is square, the ends of the support rod are slidably matched with the transverse sliding groove, and the width of the longitudinal sliding groove is greater than the width of the support rod.

[0011] Preferably, the bristles of the bristle piece are made of flexible material, and the elastic force of the bristle piece is greater than the elastic force of the two elastic pieces.

[0012] Preferably, an inclined surface is formed on one end of the push block close to the support rod, and the inclined surface faces the longitudinal slide groove.

[0013] Preferably, an elastic expansion plate is provided inside the paper tray, which is used to control the contact between the paper and the pickup wheel. A separation pad is fixedly installed inside the paper tray below the pickup wheel. The separation pad cooperates with the pickup wheel to limit the feeding of only one sheet of paper at a time. A driving member for controlling the rotation of the rotating rod is provided inside the inkjet printer body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The paper pickup mechanism of the inkjet printer is provided with a cleaning component, a support rod and a quick-release mechanism. Firstly, when the bristle part is worn, the elastic part cooperates with the push block to allow the support rod to drive the shell to be fine-tuned to one side of the paper pickup wheel, thereby compensating for the worn part of the bristle part and effectively improving the service life of a single bristle part. Secondly, the shell can be used to collect the cleaned paper fibers or dust, which is convenient for subsequent centralized processing. Thirdly, the support rod cooperates with the quick-release mechanism to facilitate the installation or removal of the support rod, thereby facilitating the processing of the paper fibers or dust collected inside the shell and facilitating the replacement of the bristle part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the first axial side of the paper tray of the utility model;

[0019] Figure 3 It is a cross-sectional view of the paper tray of the utility model;

[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the structure enlargement at the center A;

[0021] Figure 5 It is a schematic diagram of the second axis side of the paper tray of the utility model;

[0022] Figure 6 For this utility model Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0023] In the figure: 1. Inkjet printer body; 2. Paper tray; 3. Paper feeding assembly; 301. Rotating rod; 302. Pick-up wheel; 4. Cleaning assembly; 401. Shell; 402. Brush; 5. Support rod; 6. Quick release mechanism; 601. Horizontal slide; 602. Longitudinal slide; 603. Push block; 604. Elastic member; 7. Elastic retractable plate; 8. Separation pad. DETAILED DESCRIPTION

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] 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 an indirect connection 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 by specific circumstances.

[0026] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0027] like Figures 1 to 6 As shown, a paper pickup mechanism of an inkjet printer comprises an inkjet printer body 1, a paper tray 2 is mounted on the inkjet printer body 1, a paper feeding assembly 3 is arranged on the paper tray 2, the paper feeding assembly 3 comprises a rotating rod 301 rotatably connected to the paper tray 2, a paper pickup wheel 302 is fixedly arranged in the middle of the outer surface of the rotating rod 301, a cleaning assembly 4 for cleaning the paper pickup wheel 302 is arranged at a position of the paper tray 2 corresponding to the paper pickup wheel 302; the cleaning assembly 4 comprises a shell 401 for paper fibers or dust, a bristle member 402 is fixedly arranged inside the shell 401, and the bristle member 402 Fitting with the paper pickup wheel 302, the shell 401 is in an arc shape, and the cross-section of the shell 401 is one-third of a circle. Support rods 5 are fixedly provided at both ends of the shell 401, and quick-release mechanisms 6 are provided at the positions of the paper tray 2 corresponding to the two support rods 5. When the paper pickup wheel 302 rotates, the brush member 402 of the cleaning component 4 can automatically clean the paper pickup wheel 302 to ensure that the paper pickup wheel 302 can pull paper smoothly. The cleaned paper fibers or dust will freely fall to the shell 401, so that the shell 401 is used to collect the paper fibers or dust, which is convenient for subsequent centralized processing.

[0028] like Figures 4 to 6As shown, the quick-release mechanism 6 includes a transverse slide groove 601 and a longitudinal slide groove 602 opened on the paper tray 2. The interior of the transverse slide groove 601 is provided with a push block 603 for sliding movement. The push block 603 is connected to the transverse slide groove 601 through an elastic member 604; the cross-section of the support rod 5 is square, and the ends of the support rod 5 are slidably matched with the transverse slide groove 601, and the width of the longitudinal slide groove 602 is greater than the width of the support rod 5; the bristles of the brush member 402 are made of flexible material, and the elastic force of the brush member 402 is greater than the elastic force of the two elastic members 604. When the brush member 402 is worn, the elastic member 604 is used in combination with the push block 603, so that the support rod 5 can drive the housing 401 to fine-tune to one side of the paper pickup wheel 302, thereby compensating for the worn part of the brush member 402 and ensuring that the brush member 402 can always keep in contact with the paper pickup wheel 302 ( Figure 6 The bristle member 402 is worn to a limit state).

[0029] like Figure 6 As shown, the end of the push block 603 close to the support rod 5 is formed with an inclined surface, and the inclined surface faces the longitudinal slide groove 602. The inclined surface set on the push block 603 can facilitate the user to install the support rod 5.

[0030] like Figures 1 to 4 As shown, an elastic expansion plate 7 is provided inside the paper tray 2, and the elastic expansion plate 7 is used to control the contact between the paper and the pickup wheel 302. A separation pad 8 is fixedly installed inside the paper tray 2 corresponding to the lower part of the pickup wheel 302. The separation pad 8 cooperates with the pickup wheel 302 to limit the feeding of only one sheet of paper at a time. A driving member (not shown in the figure) for controlling the rotation of the rotating rod 301 is provided inside the inkjet printer body 1. The inkjet printer body 1, the elastic expansion plate 7, the separation pad 8 and the driving member in this embodiment are all well-known technologies in the field of inkjet printers, so their specific structures and working principles are not described in detail.

[0031] The working process is as follows:

[0032] S1, such as Figures 1 to 4 As shown, when in use, the paper is placed inside the paper tray 2, and then the elastic expansion plate 7 is used to control the paper to contact the pickup wheel 302;

[0033] S2, such as Figures 1 to 4 As shown, the rotating rod 301 and the pickup wheel 302 are controlled to rotate by the driving member, and then the friction of the pickup wheel 302 is used to send the paper to the inkjet printer body 1 for inkjet printing;

[0034] S3, such as Figures 1 to 4As shown, when the pickup wheel 302 rotates, the brush member 402 of the cleaning assembly 4 can automatically clean the pickup wheel 302 to ensure that the pickup wheel 302 can draw paper smoothly, and the cleaned paper fibers or dust will freely fall to the housing 401, so that the housing 401 can be used to collect the paper fibers or dust, which is convenient for subsequent centralized processing;

[0035] S4, such as Figures 4 to 6 As shown, when the bristle member 402 is worn, the elastic member 604 cooperates with the push block 603 to allow the support rod 5 to drive the housing 401 to be fine-tuned toward one side of the pickup wheel 302, thereby compensating for the worn part of the bristle member 402 and ensuring that the bristle member 402 can always fit the pickup wheel 302;

[0036] S5, such as Figures 4 to 6 As shown, when it is necessary to clean the paper fibers or dust inside the housing 401, the housing 401 or the support rod 5 is pulled outward. When the support rod 5 corresponds to the longitudinal slide groove 602, the housing 401 or the support rod 5 can be pulled upward, and then the paper fibers or dust collected inside the housing 401 can be poured out.

[0037] S6, such as Figures 4 to 6 As shown, during installation, the support rod 5 can be directly placed into the longitudinal slot 602 , and the housing 401 or the support rod 5 can be pressed downward to allow the support rod 5 to enter the transverse slot 601 , and then the push block 603 can be used to position the support rod 5 .

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A paper pickup mechanism for an inkjet printer, characterized in that: The invention comprises an inkjet printer body (1), a paper tray (2) being mounted on the inkjet printer body (1), a paper feeding assembly (3) being arranged on the paper tray (2), the paper feeding assembly (3) comprising a rotating rod (301) rotatably connected to the paper tray (2), a paper pickup wheel (302) being fixedly arranged in the middle of the outer surface of the rotating rod (301), and a cleaning assembly (4) for cleaning the paper pickup wheel (302) being arranged at a position of the paper tray (2) corresponding to the paper pickup wheel (302); The cleaning component (4) comprises a shell (401) for paper fibers or dust, a brush piece (402) is fixedly installed inside the shell (401), the brush piece (402) is fitted with the paper pickup wheel (302), the shell (401) is in an arc shape, and the cross section of the shell (401) is one-third of a circle, support rods (5) are fixedly provided at both ends of the shell (401), and the paper tray (2) is provided with quick-release mechanisms (6) at positions corresponding to the two support rods (5).

2. The paper pickup mechanism of an inkjet printer according to claim 1, characterized in that: The quick-release mechanism (6) comprises a transverse slide groove (601) and a longitudinal slide groove (602) provided on the paper tray (2); a push block (603) is slidably provided inside the transverse slide groove (601); and the push block (603) is connected to the transverse slide groove (601) through an elastic member (604).

3. The paper pickup mechanism of an inkjet printer according to claim 2, characterized in that: The cross section of the support rod (5) is square, the ends of the support rod (5) are slidably matched with the transverse sliding groove (601), and the width of the longitudinal sliding groove (602) is greater than the width of the support rod (5).

4. The paper pickup mechanism of an inkjet printer according to claim 2, characterized in that: The bristles of the bristle member (402) are made of flexible material, and the elastic force of the bristle member (402) is greater than the elastic force of the two elastic members (604).

5. The paper pickup mechanism of an inkjet printer according to claim 2, characterized in that: The end of the push block (603) close to the support rod (5) is formed with an inclined surface, and the inclined surface faces the longitudinal slide groove (602).

6. The paper pickup mechanism of an inkjet printer according to claim 1, characterized in that: An elastic expansion plate (7) is provided inside the paper tray (2), and the elastic expansion plate (7) is used to control the contact between the paper and the pickup wheel (302). A separation pad (8) is fixedly installed inside the paper tray (2) corresponding to the lower side of the pickup wheel (302). The separation pad (8) cooperates with the pickup wheel (302) to limit the feeding of only one sheet of paper at a time. A driving member for controlling the rotation of the rotating rod (301) is provided inside the inkjet printer body (1).

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