Printer paper collecting shaft structure

Abstract

The utility model relates to the technical field of printers, in particular to a paper collecting shaft structure of a printer, which comprises a built-in frame, semicircular seats are arranged at the front section position of the built-in frame, the semicircular seats are symmetrically distributed along the longitudinal middle axial surface of the built-in frame, and shaft seats with circular structures are inserted into the semicircular seats. The upper end of the semicircular base is covered with a clamping base used for clamping a shaft base, shaft grooves are formed in the shaft base, and a paper collecting shaft is rotationally inserted between the two symmetrically-distributed shaft grooves. The shaft seat structures are connected to the two ends of the paper collecting shaft in a sleeving mode, the paper collecting shaft and the built-in frame can be in butt joint, the shaft seats are arranged in the semicircular seats, preliminary positioning of the paper collecting shaft can be achieved, the semicircular seats are covered with the clamping seats, and stable installation of the paper collecting shaft and the built-in frame can be achieved through threaded fastening of the threaded columns and the threaded sleeves; the paper collecting shaft can stably rotate and support a paper tube, and the paper tube wound with a printing paper roll can be limited in the middle of the paper collecting shaft in cooperation with the abutting sleeve structures on the two sides.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a paper receiving shaft structure of a printer. Background Art

[0002] The printer's take-up roller (also called the take-up roller or paper output roller) is the part responsible for receiving and arranging the printed paper. Its specific structure may vary depending on the printer type and model.

[0003] But generally includes the following main components:

[0004] Shaft: This is the main part of the delivery shaft, usually made of metal or plastic, with a certain hardness and strength to ensure that it can stably support and drive the paper during rotation;

[0005] Friction pad or rubber ring: In order to increase the friction between the paper and the paper and prevent slipping, there is usually a layer of rubber ring or friction pad on the surface of the paper delivery shaft. This layer of material is usually a material with a high friction coefficient, which can better grip the paper;

[0006] Gear or belt drive system: The paper delivery shaft is usually connected to the motor inside the printer through gears or belts to obtain precise rotation control, which can ensure that the paper can move smoothly and accurately during the printing process;

[0007] Sensors: Some high-end printers may have sensors installed near the paper delivery shaft to detect the position and movement of the paper, thereby achieving more precise printing control;

[0008] Adjustable mechanism: The take-up shaft of some printers is designed with an adjustable mechanism, allowing the user to adjust the position or pressure of the take-up shaft as needed to accommodate different thicknesses or types of paper;

[0009] Brackets and fixtures: The paper delivery shaft is usually installed inside the printer through brackets and fixtures. These brackets are usually designed with shock-absorbing functions to reduce vibration and noise during printing.

[0010] At present, when the basic paper of some printers is a paper roll structure, when it is installed in the printer, it is necessary to ensure that the inner lining paper tube structure in the center of the paper roll can be quickly connected with the printer's paper receiving shaft. At the same time, it is also necessary to ensure that the paper tube with the paper roll can be placed in the middle position of the paper receiving shaft, so as to ensure that the printed content can be in the center area of ​​the paper as much as possible. Utility Model Content

[0011] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a printer paper receiving shaft structure.

[0012] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0013] A printer paper receiving shaft structure is designed, comprising an internal frame, wherein a semicircular seat is arranged at the front position of the internal frame, and the semicircular seat is symmetrically arranged along the longitudinal middle axis plane of the internal frame, a circular shaft seat is inserted into the interior of the semicircular seat, and a clamping seat for clamping the shaft seat is covered on the upper end of the semicircular seat, and a shaft groove is arranged inside the shaft seat, and a paper receiving shaft is rotatably inserted between two symmetrically distributed shaft grooves;

[0014] A shaft sleeve is provided on the surface of the paper receiving shaft, and the inner wall surface of the shaft sleeve is sleeved with the surface of the paper receiving shaft, and one end surface of the shaft sleeve is tightly arranged with the end surface of the shaft seat, and a spring is provided at the other end of the shaft sleeve, and one end of the spring is welded and fixed to the surface of the shaft sleeve, and the spiral inner ring of the spring is wound around the surface of the paper receiving shaft, and a resisting sleeve is also provided on the surface of the paper receiving shaft, and the inner ring wall of the resisting sleeve is rotatably sleeved with the surface of the paper receiving shaft, and the other end of the spring is welded and fixed to one end surface of the resisting sleeve.

[0015] In detail, threaded columns are provided on both sides of the upper end of the semicircular seat, and the ends of the threaded columns are welded and fixed to the end faces of the semicircular seat. Built-in sleeves are provided through both ends of the socket, and the connection position between the built-in sleeve and the socket is fixed by welding, and the surface of the threaded column passes through the interior of the built-in sleeve.

[0016] In detail, a threaded sleeve is arranged at the upper end of the threaded column, the end face of the threaded sleeve is arranged closely with the end face of the built-in sleeve, and the internal threaded surface of the threaded sleeve and the external threaded surface of the threaded column are threadedly connected with each other.

[0017] In detail, a knob is provided on the outer ring wall of the threaded sleeve, one end of the knob is welded and fixed to the surface of the threaded sleeve, and there are at least two knobs which are symmetrically distributed on the outer ring wall of the threaded sleeve.

[0018] In detail, linkage bearings are provided on both sides of the built-in frame, the outer ring wall of the linkage bearing and the connection position of the built-in frame are fixed and assembled by screws, and the inner ring walls of the two linkage bearings are interference-fitted with the same linkage shaft rod.

[0019] In detail, driving bearings are provided on both sides of the built-in frame, the outer ring wall of the driving bearing and the connecting position of the built-in frame are fixed and assembled by screws, and the inner ring walls of the two driving bearings are interference-fitted with the same driving shaft.

[0020] In detail, a first friction sleeve is arranged on the linkage shaft, and the inner ring wall of the first friction sleeve is fixed to the surface of the linkage shaft by resin glue. A second friction sleeve is arranged on the driving shaft, and the inner ring wall of the second friction sleeve is fixed to the surface of the driving shaft by resin glue. Both the first friction sleeve and the second friction sleeve are made of rubber material, and the specifications and sizes of the two are the same.

[0021] In detail, a motor is arranged on the outside of the built-in frame, and the outer wall surface of the motor is fixedly assembled with the surface of the built-in frame through a bracket. A rotating shaft for driving is arranged inside the motor, and the end of the rotating shaft extends outward through the interior of the motor, and the outer end of the rotating shaft is fixedly connected to the end of the driving shaft through a coupling.

[0022] The design scheme proposed by the utility model has the following beneficial effects during application:

[0023] 1. By sleeve-connecting the shaft seat structure at both ends of the paper collection shaft, the paper collection shaft and the built-in frame can be docked. By placing the shaft seat in the semicircular seat, the initial positioning of the paper collection shaft can be achieved. By covering the semicircular seat with the clamping seat, and by fastening the threaded column and the threaded sleeve, the stable installation of the paper collection shaft and the built-in frame can be achieved, so that the paper collection shaft can stably support the paper roll in rotation. Combined with the supporting sleeve structure on both sides, the paper roll wrapped with the printing paper roll can be limited in the middle position of the paper collection shaft.

[0024] 2. Driven by the motor, the driving shaft can rotate with the second friction sleeve, so that the printing paper roll placed between the two friction sleeves can be stably transported outward. The first friction sleeve can cooperate to position the paper on the paper roll and rotate in conjunction to ensure smooth and stable paper transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is an enlarged schematic diagram of point a of the utility model;

[0027] Figure 3 This is a front view of the axle seat of the utility model;

[0028] Figure 4 It is a schematic diagram of the overall top view structure of the utility model;

[0029] Figure 5 It is a cross-sectional schematic diagram of the shaft seat and the paper receiving shaft of the utility model.

[0030] In the figure: 10, built-in frame; 11, semicircular seat; 12, shaft seat; 13, card seat; 14, shaft groove; 15, paper collection shaft; 16, shaft sleeve; 17, spring; 18, pressing sleeve; 20, threaded column; 21, built-in sleeve; 22, threaded sleeve; 30, linkage bearing; 31, linkage shaft rod; 32, first friction sleeve; 40, driving bearing; 41, driving shaft rod; 42, second friction sleeve; 43, motor. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Reference Figure 1-Figure 5 A printer paper receiving shaft structure includes a built-in frame 10, a semicircular seat 11 is arranged at the front position of the built-in frame 10, and the semicircular seat 11 is symmetrically distributed along the longitudinal middle axis of the built-in frame 10, a circular shaft seat 12 is inserted into the semicircular seat 11, and the upper end of the semicircular seat 11 is covered with a clamping seat 13 for clamping the shaft seat 12, and a shaft groove 14 is arranged inside the shaft seat 12, and a paper receiving shaft 15 is rotatably inserted between two symmetrically distributed shaft grooves 14;

[0033] A sleeve 16 is provided on the surface of the paper receiving shaft 15, and the inner wall surface of the sleeve 16 is sleeved with the surface of the paper receiving shaft 15, and one end surface of the sleeve 16 is tightly arranged with the end surface of the shaft seat 12, and a spring 17 is provided on the other end of the sleeve 16, and one end of the spring 17 is welded and fixed to the surface of the sleeve 16, and the spiral inner ring of the spring 17 is wound around the surface of the paper receiving shaft 15, and a resisting sleeve 18 is also provided on the surface of the paper receiving shaft 15, and the inner ring wall of the resisting sleeve 18 is rotatably sleeved with the surface of the paper receiving shaft 15, and the other end of the spring 17 is welded and fixed to one end surface of the resisting sleeve 18.

[0034] The built-in frame 10 is a built-in structure inside the printer. By placing the built-in frame 10 in the printer, the upper and lower friction sleeves are located at the position for conveying printing paper, which can correspond to the position of the print head, thereby ensuring stable printing of the content on the paper.

[0035] It should be further explained that threaded columns 20 are provided on both sides of the upper end of the semicircular seat 11, and the ends of the threaded columns 20 are welded and fixed to the end faces of the semicircular seat 11. Built-in sleeves 21 are provided at both ends of the socket 13, and the connection position between the built-in sleeve 21 and the socket 13 is fixed by welding. The surface of the threaded column 20 passes through the interior of the built-in sleeve 21, which can facilitate the rapid positioning and docking of the socket 13 and the semicircular seat 11.

[0036] It should be further explained that a threaded sleeve 22 is provided at the upper end of the threaded column 20, and the end face of the threaded sleeve 22 is tightly arranged with the end face of the built-in sleeve 21, and the internal thread surface of the threaded sleeve 22 and the external thread surface of the threaded column 20 are threadedly connected with each other, which can ensure the fastening of the clamping seat 13 and the semicircular seat 11, and the shaft seat 12 can be stably pressed through the two.

[0037] It should be further explained that a knob is provided on the outer ring wall of the threaded sleeve 22, one end of the knob is welded and fixed to the surface of the threaded sleeve 22, there are at least two knobs and they are symmetrically distributed on the outer ring wall of the threaded sleeve 22, and the knob can be operated manually. Under the condition of manual operation, the use of tools is reduced, which can facilitate workers to directly assemble and disassemble the paper collection shaft 15.

[0038] It should be further explained that linkage bearings 30 are provided on both sides of the built-in frame 10, and the outer ring wall of the linkage bearing 30 is fixedly assembled with the connecting position of the built-in frame 10 by screws. The inner ring walls of the two linkage bearings 30 are interference-fitted with the same linkage shaft rod 31, and the linkage bearings 30 can ensure the stable rotation of the linkage shaft rod 31.

[0039] It should be further explained that drive bearings 40 are provided on both sides of the built-in frame 10, and the outer ring wall of the drive bearing 40 is fixedly assembled with the connecting position of the built-in frame 10 by screws. The inner ring walls of the two drive bearings 40 are interference-fitted with the same drive shaft 41, and the drive bearings 40 can ensure the stable rotation of the drive shaft 41.

[0040] It should be further explained that a first friction sleeve 32 is provided on the linkage shaft 31, and the inner ring wall of the first friction sleeve 32 is fixed to the surface of the linkage shaft 31 by resin glue. A second friction sleeve 42 is provided on the driving shaft 41, and the inner ring wall of the second friction sleeve 42 is fixed to the surface of the driving shaft 41 by resin glue. The first friction sleeve 32 and the second friction sleeve 42 are both made of rubber material, and the specifications and sizes of the two are the same. The gap between the first friction sleeve 32 and the second friction sleeve 42 can make the paper close to the paper when it is transported. By rotating the second friction sleeve 42, the paper has the effect of being transported outward, and the first friction sleeve 32 can cooperate to rotate.

[0041] It should be further explained that a motor 43 is provided on the outside of the built-in frame 10, and the outer wall surface of the motor 43 is fixedly assembled with the surface of the built-in frame 10 through a bracket, and a rotating shaft for driving is provided inside the motor 43, and the end of the rotating shaft extends outward through the interior of the motor 43, and the outer end of the rotating shaft is fixedly connected to the end of the driving shaft 41 through a coupling. The model of the motor 43 is a stepper model, and it is powered by being connected to the indoor 220V power socket through a wire plug.

[0042] Working method: When it is necessary to install the paper tube of the printing paper roll lining and the paper receiving shaft 15, first put the paper tube on the paper receiving shaft 15, then, put the shaft sleeve 16 with the abutment sleeve 18 and the spring 17 on the paper receiving shaft 15, and set the two ends so that the abutment sleeves 18 on both sides can clamp the paper tube in the middle position of the paper receiving shaft 15, then, put the shaft seats 12 on both ends of the paper receiving shaft 15, and place the shaft seats 12 at both ends in the semicircular seat 11 simultaneously, so that the paper receiving shaft 15 can be positioned with the built-in frame 10.

[0043] Then, the base 13 is covered on the semicircular seat 11, and the shaft seat 12 can be pressed and positioned through the two. At this time, the threaded column 20 passes through the built-in sleeve 21 to realize the positioning of the base 13 and the semicircular seat 11, and the base 13 and the semicircular seat 11 can be fastened by the threaded connection between the threaded sleeve 22 and the threaded column 20.

[0044] By leading out the printing paper on the paper roll and inserting it between the upper and lower friction sleeves, and by turning on the power of the motor 43, the driving shaft 41 can rotate outward with the second friction sleeve 42, and the printing paper can extend outward at the same time. Because of the friction, the printing paper can rotate with the first friction sleeve 32, forming an extrusion rotation conveying effect, thereby ensuring the stable conveying of the printing paper roll when the paper is given.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printer paper receiving shaft structure, comprising a built-in frame (10), characterized in that: The built-in frame (10) is provided with a semicircular seat (11) at the front position, and the semicircular seat (11) is symmetrically arranged along the longitudinal center axis of the built-in frame (10); a circular shaft seat (12) is inserted into the interior of the semicircular seat (11); the upper end of the semicircular seat (11) is covered with a clamping seat (13) for clamping the shaft seat (12); a shaft groove (14) is provided inside the shaft seat (12); a paper receiving shaft (15) is rotatably inserted between two symmetrically arranged shaft grooves (14); The surface of the paper receiving shaft (15) is provided with a shaft sleeve (16), and the inner wall surface of the shaft sleeve (16) is sleeved with the surface of the paper receiving shaft (15), and one end surface of the shaft sleeve (16) is tightly arranged with the end surface of the shaft seat (12); the other end of the shaft sleeve (16) is provided with a spring (17), and one end of the spring (17) is welded and fixed to the surface of the shaft sleeve (16), and the spiral inner ring of the spring (17) is wound around the surface of the paper receiving shaft (15); the surface of the paper receiving shaft (15) is also provided with a resisting sleeve (18), and the inner ring wall of the resisting sleeve (18) is rotatably sleeved with the surface of the paper receiving shaft (15), and the other end of the spring (17) is welded and fixed to one end surface of the resisting sleeve (18).

2. A printer paper delivery shaft structure according to claim 1, characterized in that: Threaded columns (20) are provided on both sides of the upper end of the semicircular seat (11), and the ends of the threaded columns (20) are welded and fixed to the end faces of the semicircular seat (11). Built-in sleeves (21) are provided through both ends of the clamping seat (13), and the connection position between the built-in sleeve (21) and the clamping seat (13) is fixed by welding, and the surface of the threaded column (20) passes through the interior of the built-in sleeve (21).

3. A printer paper delivery shaft structure according to claim 2, characterized in that: A threaded sleeve (22) is provided at the upper end of the threaded column (20), the end surface of the threaded sleeve (22) is tightly arranged with the end surface of the built-in sleeve (21), and the internal thread surface of the threaded sleeve (22) and the external thread surface of the threaded column (20) are threadably butted against each other.

4. A printer paper delivery shaft structure according to claim 3, characterized in that: A knob is provided on the outer wall of the threaded sleeve (22), one end of the knob is welded and fixed to the surface of the threaded sleeve (22), and there are at least two knobs which are symmetrically distributed on the outer wall of the threaded sleeve (22).

5. The printer paper delivery shaft structure according to claim 1, characterized in that: Linkage bearings (30) are provided on both sides of the built-in frame (10), the outer ring wall of the linkage bearing (30) and the connection position of the built-in frame (10) are fixed and assembled by screws, and the inner ring walls of the two linkage bearings (30) are interference-fitted with the same linkage shaft rod (31).

6. A printer paper delivery shaft structure according to claim 5, characterized in that: Drive bearings (40) are provided through both sides of the built-in frame (10); the outer ring wall of the drive bearing (40) and the connection position of the built-in frame (10) are fixedly assembled by screws; and the inner ring walls of the two drive bearings (40) are interference-fitted with the same drive shaft (41).

7. A printer paper delivery shaft structure according to claim 6, characterized in that: The linkage shaft (31) is provided with a first friction sleeve (32), the inner wall of the first friction sleeve (32) is bonded and fixed to the surface of the linkage shaft (31) by resin glue; the drive shaft (41) is provided with a second friction sleeve (42), the inner wall of the second friction sleeve (42) is bonded and fixed to the surface of the drive shaft (41) by resin glue; the first friction sleeve (32) and the second friction sleeve (42) are both made of rubber material, and the specifications and sizes of the two are the same.

8. A printer paper delivery shaft structure according to claim 7, characterized in that: A motor (43) is disposed outside the built-in frame (10); the outer wall surface of the motor (43) is fixedly assembled with the surface of the built-in frame (10) via a bracket; a rotating shaft for driving is disposed inside the motor (43); the end of the rotating shaft passes through the inside of the motor (43) and extends outward; the outer end of the rotating shaft is fixedly connected to the end of the driving shaft (41) via a coupling.

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