Paper separating device

Abstract

The utility model relates to the technical field of printer paper separation, in particular to a paper separation device which comprises a printer and a paging device, the paging device is arranged in the printer, a mounting groove located on the right side of the paging device is formed in the printer, a rotating shaft is rotationally connected in the printer, and a fixing head is fixedly connected to the right side of the rotating shaft. A fixing head is arranged on the rotating shaft, a paper pickup wheel is arranged on the right side of the fixing head, a fixing ring connected with the paper pickup wheel in a clamped mode is fixedly connected to the end, away from the rotating shaft, of the fixing head, a first limiting rod located in the paper pickup wheel is fixedly connected to the end, away from the fixing head, of the fixing ring, and a rubber sleeve is arranged on the outer side of the paper pickup wheel. Even if the rubber sleeve is abraded, the pickup roller can normally drive the paper to move in an air exhaust adsorption mode, and the paper can be normally fed as long as the rubber sleeve is not broken, so that the replacement period of the rubber sleeve is greatly prolonged, and the replacement is easier.

Description

Technical Field

[0001] This utility model relates to the field of paper separation technology for printers, specifically a paper separation device. Background Technology

[0002] The paper separation unit is an important component in a printer that ensures that each sheet of paper enters the printing channel accurately. It is generally separated into sheets by the paper feed rollers and the pager during the paper feeding process.

[0003] After a period of use, existing paper separating devices inevitably experience significant wear between the rubber sleeve on the surface of the paper feed roller and the paper because they rely on springs and pagers to squeeze the paper and work together with the paper feed roller to separate it. Once the rubber sleeve of the traditional paper feed roller wears down to a certain extent, the gap between the paper feed roller and the paper will become too large, leading to a series of problems such as paper not being fed. The rubber sleeve needs to be replaced in time to function properly, which is very troublesome. Therefore, a paper separating device is proposed to address the above problems. Utility Model Content

[0004] In view of the aforementioned problems, this application proposes a paper separating device to overcome the aforementioned problems or at least partially solve the problems raised in the background art.

[0005] One embodiment of this application provides a paper separating device, including a printer and a page separator, wherein the page separator is disposed inside the printer;

[0006] The paper feed roller is rotatably mounted inside the printer. A rubber sleeve is provided on the outer side of the paper feed roller, and air holes communicating with the interior of the rubber sleeve and the surface of the paper feed roller are provided.

[0007] A support tube is slidably disposed inside the printer and one end extends into the inside of the paper feed roller, the support tube being in communication with the inside of the paper feed roller;

[0008] The elastic compensation unit includes a spring sleeved on the outside of the support tube, one end of the spring abutting against the fixed shell and the other end abutting against the support plate fixed to the support tube.

[0009] The negative pressure adsorption unit includes a powerful fan mounted on the printer and a bushing that connects to the support tube. The powerful fan is connected to the support tube through the bushing, and when the fan is started, it generates negative pressure at the air holes on the surface of the paper feed roller to adsorb paper.

[0010] Preferably, the paper feed roller is rotatably connected to the printer via a rotating shaft, and the end of the rotating shaft is provided with a fixing ring, which is engaged with the paper feed roller by a first limiting rod.

[0011] Preferably, the paper feed roller is provided with a first sealing ring and a second sealing ring inside. The first sealing ring is located at the connection between the support tube and the paper feed roller, and the second sealing ring is located between the fixed shell and the limiting plate.

[0012] The first sealing ring is annular, and its shape and size perfectly match the shape and size of the groove inside the paper feed roller.

[0013] Preferably, the air holes are arranged in a ring array along the circumference of the rubber sleeve, and are evenly distributed on the outer side of the paper-feeding roller and the rubber sleeve with the center of the paper-feeding roller as the center.

[0014] Preferably, the printer has a protective mesh at its exhaust port.

[0015] Preferably, the second sealing ring is square, and the shape and size of the second sealing ring perfectly match the shape and size of the groove inside the fixing shell.

[0016] Preferably, the exhaust port and the protective net are a set, and the exhaust port and the protective net are located on the right side of the powerful fan, and are horizontally overlapped with the powerful fan when viewed from the side.

[0017] This application has the following advantages:

[0018] In the embodiments of this application, the paper feed roller, rubber sleeve, air hole, first sealing ring, fixed shell, second sealing ring, support tube, bushing, powerful fan, exhaust hole and protective net are provided. The powerful fan, through the bushing, support tube, fixed shell and air hole provided on the surface of the rubber sleeve and paper feed roller, adsorbs the paper by suction. Even if the rubber sleeve is worn, the paper feed roller can still drive the paper to move normally by suction. As long as the rubber sleeve is not broken, the paper can be fed normally, which greatly extends the replacement cycle of the rubber sleeve and makes it easier. This solves the problem that after a period of use, the rubber sleeve on the surface of the paper feed roller will inevitably wear a lot with the paper because the paper feed roller and the paper feed roller cooperate to separate the paper by squeezing the paper with the spring and the pager. Once the rubber sleeve of the traditional paper feed roller is worn to a certain extent, the gap between the paper feed roller and the paper will be too large, resulting in a series of problems such as not feeding the paper. The rubber sleeve needs to be replaced in time to work normally, which is very troublesome.

[0019] First, pull the fixed shell. Under the guidance of the limiting plate and the support tube, the fixed shell will move. During the movement, the spring will be compressed under the support of the support plate until the fixed shell can no longer move. At this time, the paper feed roller can be quickly removed and the rubber sleeve on the surface can be replaced. After replacing the rubber sleeve, simply align the first limiting rod with the hole on the paper feed roller and insert it. Under the guidance of the first limiting rod, the fixing ring will be fully inserted into the inside of the paper feed roller. Then, simply loosen the fixed shell. Under the action of the spring and the support plate, the paper feed roller will be automatically fixed. The replacement of the rubber sleeve can be completed quickly with just a pull and a pull, which is very convenient. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a paper separating device according to an embodiment of this application;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of a paper separating device provided in an embodiment of this application;

[0023] Figure 3 yes Figure 2 A schematic diagram of the structure at point A;

[0024] Figure 4 This is a top cross-sectional view of a paper-splitting device according to an embodiment of this application;

[0025] Figure 5 This is a detailed structural schematic diagram of the paper feeding roller of a paper separating device according to an embodiment of this application;

[0026] Figure 6 This is a right-side detailed structural schematic diagram of the paper feeding roller of a paper separating device provided in one embodiment of this application.

[0027] In the diagram: 1. Printer; 2. Pager; 3. Mounting slot; 4. Spindle; 5. Fixing head; 6. Paper feed roller; 7. Fixing ring; 8. First limiting rod; 9. Rubber sleeve; 10. Air hole; 11. Second limiting rod; 12. First sealing ring; 13. Fixing shell; 14. Second sealing ring; 15. Limiting plate; 16. Support tube; 17. Spring; 18. Support plate; 19. Bushing; 20. Powerful fan; 21. Exhaust hole; 22. Protective net. Detailed Implementation

[0028] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] Reference Figures 1 to 6This paper separation device according to an embodiment of the present application is shown, including: a printer 1 and a pager 2, the pager 2 being disposed inside the printer 1; a paper feed roller 6 being rotatably disposed inside the printer 1, the outer side of the paper feed roller 6 being provided with a rubber sleeve 9, the rubber sleeve 9 and the surface of the paper feed roller 6 being provided with air holes 10 communicating with their interiors; and a support tube 16 being slidably disposed inside the printer 1 with one end extending into the interior of the paper feed roller 6, the support tube 16 communicating with the interior of the paper feed roller 6.

[0030] The elastic compensation unit includes a spring 17 sleeved on the outside of the support tube 16. One end of the spring 17 abuts against the fixed shell 13, and the other end abuts against the support plate 18 fixed to the support tube 16.

[0031] The negative pressure adsorption unit includes a powerful fan 20 mounted on the printer 1 and a bushing 19 connected to the support tube 16. The powerful fan 20 is connected to the support tube 16 through the bushing 19, and when the fan is started, it generates negative pressure at the air holes 10 on the surface of the paper feed roller 6 to adsorb paper.

[0032] In this embodiment, the air vent 10 uses negative pressure to adsorb paper, reducing direct friction between the rubber sleeve of the paper feed roller and the paper, thus extending the service life of the sleeve. The spring 17 pushes the support tube 16 towards the paper after the rubber sleeve 9 wears, maintaining effective contact pressure between the sleeve and the paper and preventing the "paper not feeding" problem. Furthermore, the negative pressure adsorption assists the page separator 2 in accurately separating single sheets of paper, reducing the rate of multiple-page feeding. The detachable design of the bushing 19 and support tube 16 facilitates independent replacement of the fan 20 and the paper feed roller 6, reducing maintenance costs. This solves the problem of the traditional paper feed roller 6 having an unadjustable spacing due to wear. Specifically, the air vent 10 combined with negative pressure adsorption and elastic compensation alleviates the wear problem of the rubber sleeve, and the fan 20 creates negative pressure at the paper feed roller 6 through the support tube 16, adsorbing paper and reducing friction.

[0033] Furthermore, the paper feed roller 6 is rotatably connected to the printer 1 via a rotating shaft 4. A retaining ring 7 is provided at the end of the rotating shaft 4, and the retaining ring 7 is engaged with the paper feed roller 6 via a first limiting rod 8. The paper feed roller 6 has a first sealing ring 12 and a second sealing ring 14 inside. The first sealing ring 12 is located at the connection between the support tube 16 and the paper feed roller 6, and the second sealing ring 14 is located between the fixed shell 13 and the limiting plate 15. The first sealing ring 12 is annular, and its shape and size perfectly match the shape and size of the internal groove of the paper feed roller 6.

[0034] The air vents 10 are arranged in a ring array around the circumference of the rubber sleeve 9, and are evenly distributed on the outer side of the paper feed roller 6 and the rubber sleeve 9 with the center of the paper feed roller 6 as the center. A protective mesh 22 is provided at the exhaust port 21 of the printer 1. The second sealing ring 14 is square, and the shape and size of the second sealing ring 14 are completely matched with the shape and size of the groove inside the fixing shell 13. The exhaust port 21 and the protective mesh 22 are a set, and the exhaust port 21 and the protective mesh 22 are located on the right side of the powerful fan 20, and are horizontally overlapped with the powerful fan 20 when viewed from the side.

[0035] It should be noted that the aforementioned high-powered fan 20 uses a negative pressure fan connected to the bushing 19 and the support tube 16, so that the rotation of the paper feed roller 6 will not affect the operation of the fan 20. Since the structure of the fan 20 is a conventional structure, it will not be described in detail in the attached drawings and instruction manual.

[0036] As an example, a paper separating device includes a printer 1 and a pager 2. The pager 2 is located inside the printer 1. A mounting slot 3 is located on the right side of the pager 2 inside the printer 1. A rotating shaft 4 is rotatably connected inside the printer 1. A fixing head 5 is fixedly connected to the right side of the rotating shaft 4. A paper feed roller 6 is located on the right side of the fixing head 5. A fixing ring 7, which engages with the paper feed roller 6, is fixedly connected to the end of the fixing head 5 away from the rotating shaft 4. A first limiting rod 8, located inside the paper feed roller 6, is fixedly connected to the end of the fixing ring 7 away from the fixing head 5. A rubber sleeve 9 is provided on the outside of the paper feed roller 6. Air holes 10 are provided on the surfaces of the paper feed roller 6 and the rubber sleeve 9. A second limiting rod 11, located to the right of the first limiting rod 8, is located inside the paper feed roller 6. A first sealing ring 12, located inside the paper feed roller 6, is fixedly connected to the right side of the second limiting rod 11. The first sealing ring 12 is located away from the second limiting rod 11. One end of the printer is fixedly connected to a fixed housing 13. The fixed housing 13 has a second sealing ring 14 inside. The left side of the second sealing ring 14 is fixedly connected to a limiting plate 15 located inside the fixed housing 13. The inner side of the limiting plate 15 is fixedly connected to a support tube 16 located to the right of the paper feed roller 6 and rotatably connected to the printer 1. The end of the fixed housing 13 away from the first sealing ring 12 is fixedly connected to a spring 17 located outside the support tube 16. The end of the spring 17 away from the fixed housing 13 is fixedly connected to a support plate 18 fixedly connected to the support tube 16. The end of the support tube 16 away from the paper feed roller 6 is provided with a bushing 19 located inside the mounting groove 3. The end of the bushing 19 away from the support tube 16 is fixedly connected to a powerful fan 20 fixedly connected to the printer 1. The right side of the printer 1 has an exhaust hole 21 located to the right of the powerful fan 20. A protective net 22 is fixedly connected inside the exhaust hole 21.

[0037] The number of air holes 10 is several, and the air holes 10 are evenly arranged in a matrix around the center of the paper feed roller 6 and the outer side of the rubber sleeve 9. The multiple air holes 10 can more stably adsorb the paper. The first sealing ring 12 is annular, and the shape and size of the first sealing ring 12 are completely matched with the shape and size of the groove inside the paper feed roller 6. The first sealing ring 12 with matching shape and size and the right side of the paper feed roller 6 located in the groove inside the groove can greatly improve the sealing performance of the overall airflow channel. The second sealing ring 14 is square, and the shape and size of the second sealing ring 14 are completely matched with the shape and size of the groove inside the fixed shell 13. The second sealing ring 14 with matching shape and size and the groove inside the fixed shell 13 can greatly improve the sealing performance of the overall airflow channel. The exhaust hole 21 and the protective net 22 are a group, and the exhaust hole 21 and the protective net 22 are located on the right side of the powerful fan 20. When viewed from the side, they are horizontally overlapped with the powerful fan 20 to ensure the exhaust effect of the powerful fan 20.

[0038] When a paper feeding device is required, the entire device is powered externally. A powerful fan 20, through a bushing 19, support tube 16, fixed housing 13, and air holes 10 on the surfaces of the rubber sleeve 9 and the paper feed roller 6, draws paper up through suction. The first sealing ring 12 and the second sealing ring 14 significantly improve the airtightness, ensuring the suction power of the powerful fan 20. Even if the rubber sleeve 9 wears down, the paper feed roller 6 can still move the paper normally through suction. As long as the rubber sleeve 9 is not broken, paper can be fed normally, significantly extending the replacement cycle of the rubber sleeve 9 and making the process easier. The rotating shaft 4 is controlled and driven by the internal drive device of the printer 1. The rotating shaft 4 drives the first limiting rod 8 to rotate through the fixed head 5 and the fixed ring 7. The fixed head 5 and the fixed ring 7 drive the paper feed roller 6 to rotate under the action of the first limiting rod 8. The paper feed roller 6 then drives the second limiting rod 11, the first sealing ring 12, and the fixed housing 13 to rotate. 13 drives the limiting plate 15 to rotate through the second sealing ring 14. The limiting plate 15 drives the support tube 16 to rotate inside the bushing 19 under the support of the printer 1. Under the action of the bushing 19, the support tube 16 can rotate while the powerful fan 20 does not rotate. When the rubber sleeve 9 needs to be replaced, first pull the fixed shell 13. Under the limitation of the limiting plate 15 and the guidance of the support tube 16, the fixed shell 13 will move. During the movement, the fixed shell 13 will compress the spring 17 under the support of the support plate 18 until the fixed shell 13 can no longer move. At this time, the paper feed roller 6 can be quickly removed and the rubber sleeve 9 on the surface can be replaced. After replacing the rubber sleeve 9, simply align the first limiting rod 8 with the hole on the paper feed roller 6 and insert it. Under the guidance of the first limiting rod 8, the fixing ring 7 will be fully inserted into the inside of the paper feed roller 6. Then, simply loosen the fixed shell 13. Under the action of the spring 17 and the support plate 18, the paper feed roller 6 can be automatically fixed. The replacement of the rubber sleeve 9 can be completed quickly with just a pull and a pull, which is very convenient.

[0039] It should be noted that any content not described in detail in this specification belongs to the prior art known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here.

[0040] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0041] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0042] The paper separating device provided in this application has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A paper separating device, characterized in that, include: A printer (1) and a pager (2), wherein the pager (2) is located inside the printer (1); The paper feed roller (6) is rotatably disposed inside the printer (1). A rubber sleeve (9) is provided on the outer side of the paper feed roller (6). An air hole (10) communicating with the interior of the rubber sleeve (9) and the paper feed roller (6) is provided on the surface of the rubber sleeve (9). A support tube (16) is slidably disposed inside the printer (1) and one end extends into the paper feed roller (6), the support tube (16) being in communication with the inside of the paper feed roller (6); The elastic compensation unit includes a spring (17) sleeved on the outside of the support tube (16), one end of the spring (17) abutting against the fixed shell (13) and the other end abutting against the support plate (18) fixed to the support tube (16). The negative pressure adsorption unit includes a powerful fan (20) mounted on the printer (1) and a bushing (19) that connects to the support tube (16). The powerful fan (20) is connected to the support tube (16) through the bushing (19), and when the fan is started, it generates negative pressure at the air holes (10) on the surface of the paper feed roller (6) to adsorb paper.

2. The paper separating device according to claim 1, characterized in that: The paper feed roller (6) is rotatably connected to the printer (1) via a rotating shaft (4). The end of the rotating shaft (4) is provided with a fixing ring (7), which is engaged with the paper feed roller (6) via a first limiting rod (8).

3. The paper separating device according to claim 1, characterized in that: The paper feed roller (6) is provided with a first sealing ring (12) and a second sealing ring (14) inside. The first sealing ring (12) is located at the connection between the support tube (16) and the paper feed roller (6), and the second sealing ring (14) is located between the fixed shell (13) and the limiting plate (15). The first sealing ring (12) is annular, and the shape and size of the first sealing ring (12) are perfectly matched with the shape and size of the groove inside the paper feed roller (6).

4. The paper separating device according to claim 1, characterized in that: The air holes (10) are arranged in a ring array along the circumference of the rubber sleeve (9), and are evenly arranged on the outside of the paper-feeding wheel (6) and the rubber sleeve (9) with the center of the paper-feeding wheel (6) as the center.

5. The paper separating device according to claim 1, characterized in that: The printer (1) has a protective net (22) at the exhaust port (21).

6. The paper separating device according to claim 3, characterized in that: The second sealing ring (14) is square, and the shape and size of the second sealing ring (14) are perfectly matched with the shape and size of the groove inside the fixed shell (13).

7. The paper separating device according to claim 5, characterized in that: The exhaust port (21) and the protective net (22) are a set. The exhaust port (21) and the protective net (22) are located on the right side of the powerful fan (20) and are horizontally overlapped with the powerful fan (20) when viewed from the side.

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