Printer paper feeding channel structure suitable for file box printing

Abstract

The utility model relates to the field of printers, and discloses a printer paper feeding channel structure suitable for file box printing, which comprises a rack, an upper paper guide plate and a lower paper support plate are arranged on the rack up and down, a paper feeding channel is formed by a gap between the lower paper support plate and the upper paper guide plate, and the thickness of the paper feeding channel is matched with that of a file box. The bottom of the upper paper guide plate is provided with a notch for a bulge on the file box to pass through; an upper roll shaft elastically connected with the upper paper guide plate is arranged above the upper paper guide plate, the upper roll shaft is coaxially sleeved with a plurality of upper paper conveying rolls, the upper paper conveying rolls penetrate through insertion holes in the upper paper guide plate to enter the paper feeding channel, and the upper roll shaft can float up and down on the rack to adapt to the thickness of the file box. The file box can smoothly pass through the paper feeding channel of the structure, and the file box has the advantages of being simple in structure and easy to maintain.

Description

Technical Field

[0001] The utility model relates to the field of printers, in particular to a printer paper feeding channel structure suitable for file box printing. Background Art

[0002] Nowadays, enterprises and institutions have increasingly higher requirements for file management. File boxes are usually used in file rooms as a tool for organizing and binding files. The workload of registering file boxes will increase with the number of file boxes, especially in the archives of libraries and government departments, which need to register a large number of files. The existing means of entering files is to print labels through printers, and then the staff inserts the labels into the label slots on the cover of the file bag. However, if the number of file bags is large, it is very easy to make mistakes due to fatigue.

[0003] Therefore, improvements are made on the basis of the existing printer structure to improve the work efficiency and accuracy of the registration file box as the research and development goal, and designing a structure that can directly put the file bag into the printer for printing is a technical problem that needs to be solved at present. Summary of the invention

[0004] In view of the above problems, the utility model provides a printer paper feeding channel structure suitable for file box printing, which can directly put the file bag into the printer's paper feeding channel, and adjust the height of the upper paper feeding roller to fit the file box, and transport the file box to the print head for printing. The specific scheme is as follows:

[0005] A printer paper feed channel structure suitable for file box printing comprises a frame, an upper paper guide and a lower paper support arranged up and down are arranged on the frame, a paper feed channel is formed by the interval between the lower paper support and the upper paper guide, the paper feed channel matches the thickness of the file box, and a notch is provided at the bottom of the upper paper guide for a protrusion on the file box to pass through;

[0006] An upper roller shaft is provided above the upper paper guide plate and is elastically connected thereto, and a plurality of upper paper feed rollers are coaxially sleeved on the upper roller shaft, and the upper paper feed rollers pass through the insertion holes on the upper paper guide plate and enter into the paper feeding channel, and the upper roller shaft can float up and down on the frame to adapt to the thickness of the file box, wherein one end of the upper roller shaft is connected to a gear transmission pair arranged on one side of the frame through a universal coupling, and the other end of the upper roller shaft is connected to a vertical oblong hole arranged on the other side of the frame.

[0007] Furthermore, the gear transmission pair includes a main gear mounted on the frame and a secondary gear keyed to the end of the universal coupling.

[0008] Furthermore, the universal coupling is provided with a sleeve at one end of the upper roller shaft, a U-shaped groove is provided on the side wall of the sleeve along the length direction of the upper roller shaft, the upper roller shaft is inserted into the sleeve, and a cylindrical pin is provided on the outer side of the upper roller shaft to fit into the U-shaped groove.

[0009] Furthermore, there are two notches, which are arranged side by side on the upper paper guide to match the buckles at different positions on the file box.

[0010] Furthermore, the upper paper guide includes a front upper paper guide and a rear upper paper guide, which are respectively located at the input end and the output end of the print head, and the notch includes a first notch opened on the front upper paper guide and a second notch opened on the rear upper paper guide.

[0011] Furthermore, there is an upper roller shaft located on the front upper paper guide and the rear upper paper guide, respectively, and a plurality of upper paper feed rollers are coaxially sleeved on the upper roller shaft, and a plurality of jacks corresponding to the plurality of upper paper feed rollers are respectively provided on the front upper paper guide and the rear upper paper guide, and two corresponding wheel transmission pairs are respectively provided on the frame located at one end of the two upper roller shafts, and a universal coupling is connected between the upper roller shaft and the corresponding gear transmission pair, and two corresponding vertical oblong holes are respectively provided on the frame located at the other end of the two upper roller shafts, and the upper roller shafts are arranged in the corresponding vertical oblong holes.

[0012] Furthermore, the front upper paper guide is a V-shaped plate, and the first notch is opened at the bottom of the V-shaped plate.

[0013] Furthermore, the rear upper paper guide includes a flat plate and a rear side plate. The flat plate is located on the output side of the print head, and it and the lower supporting paper plate constitute the paper feeding channel. The rear side of the flat plate is integrally connected to the rear side plate. The second notch is a through hole opened on the flat plate along its width direction. A through hole aligned with the second notch is provided on the rear side plate, and both ends of the rear side plate are fixedly connected to the two frames respectively.

[0014] Compared with the prior art, the advantages of the utility model are as follows:

[0015] 1. The utility model allows the buckle on the file box to pass through the paper feeding channel smoothly through the notch, driving the file box to smoothly feed or withdraw paper, reducing the risk of paper jam. The universal coupling can also realize angular rotation between the upper roller and the gear transmission pair to adapt to the transmission of file boxes of different thicknesses in the paper feeding channel. The vertical oblong hole cooperates with the upper roller to float up and down in it due to the change of height, which has the advantages of simple structure and easy maintenance.

[0016] 2. The utility model is elastically connected to the upper roller shaft through the upper paper guide. When the file box passes through, the upper paper guide can pull the upper roller shaft back to its original position. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 The structural diagram of the upper paper guide;

[0019] Figure 3 To enhance the structural diagram of the mechanism;

[0020] Figure 4 It is the structural diagram of the vertical oblong hole and the upper roller shaft;

[0021] Attached photos

[0022] 1. Frame; 2. Lower support paperboard; 3. Print head; 4. Front upper paperboard guide; 4-1. First notch; 5. Rear upper paperboard guide; 5-1. Flat plate; 5-2. Rear side plate; 5-3. Second notch; 6. Socket; 7. Upper paper feed roller; 8. Upper roller shaft; 9. Universal coupling; 9-1. Bushing; 9-2. U-shaped slot; 10. Main gear; 11. Paper sub-gear; 12. Spring; 13. Spring hook; 14. Vertical oblong hole. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments.

[0024] Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the utility model.

[0025] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, 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 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 utility model can be understood according to specific circumstances. Example

[0027] like Figure 1 As shown, a printer paper feeding channel structure suitable for file box printing includes a frame, an upper paper guide and a lower paper support are arranged on the frame, the gap between the lower paper support and the upper paper guide forms a paper feeding channel, the paper feeding channel matches the thickness of the file box, and a notch is provided at the bottom of the upper paper guide for the protrusion on the file box to pass through;

[0028] An upper roller shaft is provided above the upper paper guide plate and is elastically connected thereto, and a plurality of upper paper feed rollers are coaxially sleeved on the upper roller shaft, and the upper paper feed rollers pass through the insertion holes on the upper paper guide plate and enter into the paper feeding channel, and the upper roller shaft can float up and down on the frame to adapt to the thickness of the file box, wherein one end of the upper roller shaft is connected to a gear transmission pair arranged on one side of the frame through a universal coupling, and the other end of the upper roller shaft is connected to a vertical oblong hole arranged on the other side of the frame. Example

[0029] like Figure 1 and Figure 2 As shown, there are two notches, which are arranged side by side on the upper paper guide to match the buckles at different positions on the file box.

[0030] The upper paper guide comprises a front upper paper guide and a rear upper paper guide. The front upper paper guide is located at the input side of the print head, and the rear upper paper guide is located at the output side of the print head.

[0031] The notch comprises a first notch formed on the front upper paper guide and a second notch formed on the rear upper paper guide.

[0032] The front upper paper guide is a V-shaped plate, which can keep the file box flat when entering the paper feeding / returning passage. The first notch is formed at the bottom of the V-shaped plate.

[0033] The rear upper paper guide includes a flat plate and a rear side plate. The flat plate is located at the output side of the print head and forms the paper feeding channel with the lower supporting paper plate. The flat plate is used to keep the file box flat and prevent blockage.

[0034] The rear side of the flat plate is integrally connected to the rear side plate, the second notch is a through hole opened on the flat plate along its width direction, the rear side plate is provided with a through hole aligned with the second notch, and both ends of the rear side plate are fixedly connected to the two racks respectively. Example

[0035] like Figure 2As shown, there is an upper roller shaft located on the front upper paper guide and the rear upper paper guide, respectively, and a plurality of upper paper feed rollers are coaxially sleeved on the upper roller shaft, and a plurality of jacks corresponding to the plurality of upper paper feed rollers are respectively provided on the front upper paper guide and the rear upper paper guide, and two corresponding wheel transmission pairs are respectively provided on the frames located at one end of the two upper roller shafts, and a universal coupling is connected between the upper roller shaft and the corresponding gear transmission pair, and two corresponding vertical oblong holes are respectively provided on the frames located at the other ends of the two upper roller shafts, and the upper roller shafts are arranged in the corresponding vertical oblong holes.

[0036] The gear transmission pair comprises a main gear mounted on a frame and a secondary gear keyed to the end of a universal coupling.

[0037] The universal coupling is provided with a sleeve at one end of the upper roller shaft, and a U-shaped groove arranged along the length direction of the upper roller shaft is opened on the side wall of the sleeve. The upper roller shaft is inserted into the sleeve, and a cylindrical pin inserted into the U-shaped groove is provided on the outer side of the upper roller shaft. The cylindrical pin moves in the U-shaped groove as the height of the upper roller shaft changes.

[0038] Two sets of lower paper feeding mechanisms are respectively arranged below the lower supporting paperboard, and the lower paper feeding mechanisms are arranged in a mirror image with the upper paper feeding mechanisms, and no universal coupling is arranged in the lower paper feeding mechanisms. The two sets of lower paper feeding mechanisms correspond to the two sets of upper paper feeding mechanisms on the front upper paper guide and the rear upper paper guide, respectively.

[0039] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A printer paper feed channel structure suitable for file box printing, comprising a frame, an upper paper guide and a lower paper support arranged up and down on the frame, the interval between the lower paper support and the upper paper guide forms a paper feed channel, characterized in that: The paper feeding channel matches the thickness of the file box, and a notch is provided at the bottom of the upper paper guide for the protrusion on the file box to pass through; An upper roller shaft is provided above the upper paper guide plate and is elastically connected thereto, and a plurality of upper paper feed rollers are coaxially sleeved on the upper roller shaft, and the upper paper feed rollers pass through the insertion holes on the upper paper guide plate and enter into the paper feeding channel, and the upper roller shaft can float up and down on the frame to adapt to the thickness of the file box, wherein one end of the upper roller shaft is connected to a gear transmission pair arranged on one side of the frame through a universal coupling, and the other end of the upper roller shaft is connected to a vertical oblong hole arranged on the other side of the frame.

2. The printer paper path structure suitable for file box printing according to claim 1, characterized in that: The gear transmission pair comprises a main gear mounted on a frame and a secondary gear keyed to the end of a universal coupling.

3. The printer paper path structure suitable for file box printing according to claim 2, characterized in that: The universal coupling is provided with a sleeve at one end of the upper roller shaft, a U-shaped slot is provided on the side wall of the sleeve along the length direction of the upper roller shaft, the upper roller shaft is inserted into the sleeve, and a cylindrical pin is provided on the outer side of the upper roller shaft to fit into the U-shaped slot.

4. The printer paper path structure suitable for file box printing according to claim 3, characterized in that: There are two notches, which are arranged side by side on the upper paper guide to match the buckles at different positions on the file box.

5. The printer paper path structure suitable for file box printing according to claim 4, characterized in that: The upper paper guide includes a front upper paper guide and a rear upper paper guide, which are respectively located at the input end and the output end of the print head, and the notch includes a first notch opened on the front upper paper guide and a second notch opened on the rear upper paper guide.

6. The printer paper path structure suitable for file box printing according to claim 5, characterized in that: There is an upper roller shaft located on the front upper paper guide and the rear upper paper guide, respectively, and a plurality of upper paper feed rollers are coaxially sleeved on the upper roller shaft. The front upper paper guide and the rear upper paper guide are respectively provided with a plurality of jacks corresponding to the plurality of upper paper feed rollers. Two corresponding wheel transmission pairs are respectively provided on the frames located at one end of the two upper roller shafts, and a universal coupling is connected between the upper roller shaft and the corresponding gear transmission pair. Two corresponding vertical oblong holes are respectively provided on the frames located at the other ends of the two upper roller shafts, and the upper roller shafts are arranged in the corresponding vertical oblong holes.

7. The printer paper path structure suitable for file box printing according to claim 6, characterized in that: The front upper paper guide is a V-shaped plate, and the first notch is formed at the bottom of the V-shaped plate.

8. The printer paper path structure suitable for file box printing according to claim 7, characterized in that: The rear upper paper guide includes a flat plate and a rear side plate. The flat plate is located on the output side of the print head, and it and the lower supporting paper plate constitute the paper feeding channel. The rear side of the flat plate is integrally connected with the rear side plate. The second notch is a through hole opened on the flat plate along its width direction. A through hole aligned with the second notch is provided on the rear side plate, and both ends of the rear side plate are fixedly connected to the two frames respectively.

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