CN217201020U - Front-end paper taking structure and printer - Google Patents
Front-end paper taking structure and printer Download PDFInfo
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- CN217201020U CN217201020U CN202220983146.2U CN202220983146U CN217201020U CN 217201020 U CN217201020 U CN 217201020U CN 202220983146 U CN202220983146 U CN 202220983146U CN 217201020 U CN217201020 U CN 217201020U
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- paper taking
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Abstract
The utility model discloses a front end structure and printer of getting paper, wherein, the front end structure of getting paper includes the base, all locate the cardboard of getting on the base, the rubbing roller, rubbing roller and elasticity thrust unit, both ends on getting cardboard upper portion are rotated and are connected on the base, the axial of rubbing roller is parallel with the board length direction of getting paper, and the rubbing roller is located the board the place ahead of getting paper, the rubbing roller periphery is fixed with the rubbing roller, it is formed with the space of getting paper to get between cardboard and the rubbing roller, elasticity thrust unit is located the cardboard rear side of getting, elasticity thrust unit is used for promoting to get the cardboard lower extreme and is close to towards rubbing roller direction. The utility model discloses in, elasticity thrust unit still has the effect of buffering, and when placing the paper of different quantity in getting the paper space, also be difficult for too big because of range upon range of paper thickness, and make the tight power of pasting of pickup roller and paper too big, can be convenient for realize the miniaturization of printer moreover.
Description
Technical Field
The utility model relates to a printer technical field especially relates to a front end structure of getting paper and printer.
Background
When a traditional printer is used for taking paper, a stack of paper is generally placed between a paper taking plate and a paper twisting wheel, then the paper taking plate is released through rotation of a cam, the paper taking plate rotates under the action of a spring to push the paper to be tightly contacted with the paper twisting wheel, and then the paper can be twisted to enter the printer when the paper twisting wheel rotates.
However, when the cam pushes the paper taking plate, the pushing force is large, the torque requirement on the motor is large, the strength requirements of the cam, the gear and the paper taking plate are high, the size and the thickness of the motor, the cam transmission gear and the paper taking plate are also large, and the size of the printer can be increased.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at, provide a front end structure of getting paper.
Another object of the present invention is to provide a printer using the above front-end paper-fetching structure.
The utility model provides a front end structure of getting paper for send the paper into inside the printer, includes the base, all locates the board of getting on the base, pickup shaft, pickup wheel and elasticity thrust unit, the both ends on pickup plate upper portion are rotated and are connected on the base, the axial of pickup shaft is parallel with pickup plate length direction, just the pickup shaft is located pickup plate the place ahead, pickup shaft periphery is fixed with the pickup wheel, it is formed with the space of getting paper to get between board and the pickup wheel, elasticity thrust unit is located the pickup rear side, elasticity thrust unit is used for promoting and gets the pickup plate lower extreme and be close to towards pickup wheel direction.
In the utility model, the elastic pushing device is arranged at the rear end of the paper taking plate to push the lower end of the paper taking plate to approach the direction of the paper rolling wheel, so that a certain attaching force is provided between the paper rolling wheel and the paper, and the paper rolling wheel can smoothly feed the paper into the printer when the motor drives the paper rolling shaft and the paper rolling wheel to rotate; meanwhile, the elastic pushing device has a buffering effect, so that when different numbers of paper are placed in the paper taking space, too large thickness of stacked paper is not easy to cause too large adhering force between the paper twisting wheel and the paper. Compared with the scheme of adopting the cam in the prior art, the paper taking plate does not need to increase the strength and the thickness to prevent the deformation, and the miniaturization of the printer can be conveniently realized.
Preferably, the elastic pushing device comprises a torsion spring, one end of the torsion spring is fixed on the base, and the other end of the torsion spring abuts against the lower end of the rear side of the paper taking plate.
Preferably, the elastic pushing device further comprises an elastic control mechanism, and the elastic control mechanism is used for controlling whether the torsion spring applies elastic pushing force to the rear side of the paper taking plate or not.
Preferably, elasticity control mechanism includes movable plate and drive assembly, the movable plate is connected on the base, the movable plate extends along getting cardboard length direction, and it is located gets the cardboard rear, the slope spigot surface has been seted up to one side that the cardboard was got to the movable plate back of the body, the torsional spring butt is on getting the tip butt of cardboard on the slope spigot surface, drive assembly is used for promoting get the cardboard and remove along getting cardboard length direction to when the movable plate removed, the torsional spring removes along the slope spigot surface, so that the torsional spring tip is close to get the cardboard and the butt is kept away from in getting the cardboard rear side or being the torsional spring tip and gets the cardboard.
Preferably, drive assembly includes actuating lever, swivel nut and driving piece, the actuating lever connect in on the base, just the tip of actuating lever with the torsional spring was kept away from to the movable plate one end is connected, the actuating lever periphery is equipped with the external screw thread section, the swivel nut circle is located the actuating lever periphery, just the internal periphery of swivel nut be equipped with external screw thread section threaded connection's internal thread section, the driving piece is used for driving the swivel nut and rotates.
Preferably, the length of the male thread section is a, the length of the female thread section is b, and the distance between one end and the other end of the inclined guide surface along the length direction of the moving plate is c, wherein a + b > c.
Preferably, a connecting groove is formed in one end, close to the driving rod, of the moving plate along the length direction, a connecting block is arranged at the end, close to the moving plate, of the driving rod along the length direction, and the length of the connecting groove is greater than that of the connecting block;
the driving assembly further comprises a compression spring, the abutting step is arranged on the periphery of the driving rod, the compression spring ring is arranged outside the driving rod, one end of the compression spring abuts against the moving plate, and the other end of the compression spring abuts against the abutting step.
Preferably, the outer side of the threaded sleeve is circumferentially provided with meshing teeth, and the driving piece drives the meshing teeth to rotate so as to drive the threaded sleeve to rotate.
Preferably, the lower part of the rear side of the paper taking plate is provided with a limiting groove for the end part of the torsion spring to enter.
The utility model discloses still relate to a printer, include the front end get the paper structure.
Compared with the prior art, the utility model discloses a printer is through adopting the front end structure of getting paper can make the paper of getting more smooth, is favorable to the miniaturization of printer simultaneously.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of the position relationship between the elastic pushing device and the paper-fetching plate according to the present invention;
FIG. 4 is an enlarged view of FIG. 3 at B;
FIG. 5 is an enlarged view of FIG. 3 at C;
fig. 6 is a schematic view of the relationship between the middle torsion spring and the paper-taking plate of the present invention.
Reference numerals: 1. a base; 2. taking a paperboard; 21. a limiting groove; 3. a paper-rolling shaft; 4. a paper rolling wheel; 5. an elastic pushing device; 51. a torsion spring; 52. an elastic control mechanism; 521. moving the plate; 5211. an inclined guide surface; 5212. connecting grooves; 522. a drive assembly; 5221. a drive rod; 5222. a threaded sleeve; 5223. connecting blocks; 5224. a compression spring; 5225. abutting against the step; 5226. meshing teeth; 5227. a square bar.
Detailed Description
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like, referred to or may be referred to in this specification, are defined relative to their configuration, and are relative concepts. Therefore, it may be changed according to different positions and different use states. Therefore, these and other directional terms should not be construed as limiting terms.
The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of implementations consistent with certain aspects of the present disclosure.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The utility model relates to a front end structure of getting paper for exert elastic thrust and give and get the cardboard, make the paper rolling wheel can support tightly on the paper surface, in order to let the paper rub into the printer smoothly.
As shown in fig. 1 to 6, the front-end paper taking structure includes a base 1, a paper taking plate 2, a paper pickup shaft 3, a paper pickup wheel 4 and an elastic pushing device 5, which are all disposed on the base 1, two ends of the upper portion of the paper taking plate 2 are rotatably connected to the base 1, an axial direction of the paper pickup shaft 3 is parallel to a length direction of the paper taking plate 2, the paper pickup shaft 3 is located in front of the paper taking plate 2, the paper pickup wheel 4 is fixed on the periphery of the paper pickup shaft 3, a paper taking space is formed between the paper taking plate 2 and the paper pickup wheel 4, the elastic pushing device 5 is located at the rear side of the paper taking plate 2, and the elastic pushing device 5 is used for pushing the lower end of the paper taking plate 2 to approach towards the direction of the paper pickup wheel 4.
In the utility model, the elastic pushing device 5 is arranged at the rear end of the paper taking plate 2 to push the lower end of the paper taking plate 2 to approach towards the direction of the paper rolling wheel 4, so that a certain adhesion force is provided between the paper rolling wheel 4 and the paper, and the paper rolling wheel 4 can smoothly feed the paper into the printer when the motor drives the paper rolling shaft 3 and the paper rolling wheel 4 to rotate; meanwhile, the elastic pushing device 5 also has a buffering effect, so that when different numbers of paper are placed in the paper taking space, too large sticking force between the paper twisting wheel 4 and the paper is not easy to be generated due to too large thickness of stacked paper. Moreover, compared with the scheme of adopting the cam in the prior art, the paper taking plate 2 does not need to increase the thickness to resist the rigid butt of the cam, and the miniaturization of the printer can be conveniently realized.
In this embodiment, the elastic pushing device 5 includes a torsion spring 51, one end of the torsion spring 51 is fixed on the base 1, and the other end of the torsion spring 51 abuts against the lower end of the rear side of the paper fetching plate 2.
The torsion spring 51 is designed to replace a traditional cam, so that the design is more convenient, meanwhile, the occupied space of the torsion spring 51 is smaller, and the miniaturization of the printer is convenient to realize.
Preferably, the elastic pushing device 5 further comprises an elastic control mechanism 52, and the elastic control mechanism 52 is used for controlling whether the torsion spring 51 applies elastic pushing force to the rear side of the paper taking plate 2.
Specifically, the elastic control mechanism 52 includes a moving plate 521 and a driving component 522, the moving plate 521 is connected to the base 1, the moving plate 521 extends along the length direction of the paper fetching plate 2 and is located behind the paper fetching plate 2, an inclined guide surface 5211 is formed on one side of the moving plate 521, which faces away from the paper fetching plate 2, the torsion spring 51 abuts against the end of the paper fetching plate 2 and abuts against the inclined guide surface 5211, and the driving component 522 is used for pushing the paper fetching plate 2 to move along the length direction of the paper fetching plate 2, so that when the moving plate 521 moves, the torsion spring 51 moves along the inclined guide surface 5211, so that the end of the torsion spring 51 is close to the paper fetching plate 2 and abuts against the rear side of the paper fetching plate 2, or the end of the torsion spring 51 is far from the paper fetching plate 2.
The driving assembly 522 pushes the moving plate 521 to move, so that the inclined guide surface 5211 can control whether the torsion spring 51 abuts against the rear side of the paper taking plate 2, thereby controlling the torsion spring 51, and the practicability is high.
Further, the driving assembly 522 includes a driving rod 5221, a threaded sleeve 5222 and a driving member (not shown, the same below), the driving rod 5221 is connected to the base 1, an end of the driving rod 5221 is connected to one end of the movable plate 521, which is far away from the torsion spring 51, an external threaded section is disposed on an outer periphery of the driving rod 5221, the threaded sleeve 5222 is looped on an outer periphery of the driving rod 5221, the threaded sleeve 5222 is connected to the base 1 and can rotate relative to the base 1, an internal threaded section in threaded connection with the external threaded section is disposed on an inner periphery of the threaded sleeve 5222, the driving member is used for driving the threaded sleeve 5222 to rotate, a square rod 5227 is integrally formed at one end of the driving rod 5221, which is far away from the movable plate 521, a square hole for the square rod 5227 to extend into is formed on the base 1, and the driving rod 5221 can move along the square hole, so that when the threaded sleeve 5222 rotates, the driving rod 5221 can be limited from rotating, ensuring axial movement of the drive rod 5221.
The driving member drives the screw sleeve 5222 to rotate so as to drive the driving rod 5221 to move along the axial direction and drive the moving plate 521 to move, so as to control the state of the torsion spring 51.
Further, the length of the male screw section is a, the length of the female screw section is b, and the distance from one end of the inclined guide surface 5211 to the other end in the length direction of the moving plate 521 is c, wherein a + b > c, so that the torsion spring 51 can move to both ends of the inclined guide surface 5211.
Still further, a connecting groove 5212 is formed in one end, close to the driving rod 5221, of the moving plate 521 along the length direction, a connecting block 5223 is formed in the end, close to the moving plate 521, of the driving rod 5221 along the length direction, and the length of the connecting groove 5212 is greater than that of the connecting block 5223;
the driving assembly 522 further includes a compression spring 5224, an abutting step 5225 is disposed on the periphery of the driving rod 5221, the compression spring 5224 is disposed outside the driving rod 5221, one end of the compression spring 5224 abuts against the moving plate 521, and the other end abuts against the abutting step 5225.
During the paper taking operation, the driving member drives the threaded sleeve 5222 to rotate forward, the driving rod 5221 pushes the moving plate 521 to move leftward, and after the internal thread section and the external thread section have finished the stroke, the torsion spring 51 abuts against the rear side of the paper taking plate 2, so that the lower end of the paper taking plate 2 is pushed to approach and press the paper taking wheel 4, and due to the abutting of the internal thread section and the external thread section, the compression spring 5224 cannot push the driving rod 5221 to move rightward, the abutting state of the torsion spring 51 is maintained, and the paper taking wheel 4 continues to rotate to start the paper taking action; when the paper taking operation is completed, the driving member drives the threaded sleeve 5222 to rotate reversely, and the compression spring 5224 can apply a pushing force to the driving rod 5221, so that the internal thread section and the external thread section can be in threaded connection, and then drive the moving rod to move rightward, so that the end of the torsion spring 51 is far away from the rear side of the paper taking plate 2.
In this embodiment, the engaging teeth 5226 are circumferentially disposed on the outer side of the screw sleeve 5222, and the driving member drives the engaging teeth 5226 to rotate so as to drive the screw sleeve 5222 to rotate, so that the transmission is more stable.
In this embodiment, the lower portion of the rear side of the paper fetching plate 2 is provided with a limiting groove 21 for the end of the torsion spring 51 to enter, so that when the torsion spring 51 abuts against the rear side of the paper fetching plate 2, the torsion spring 51 will not be deviated, and the position of the torsion spring 51 is more stable.
The utility model discloses still relate to a printer, include the front end get the paper structure.
To sum up, for prior art, the utility model discloses a printer is through adopting the front end structure of getting paper can make the paper of getting more smooth, is favorable to the miniaturization of printer simultaneously.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention.
Claims (10)
1. A front end paper taking structure for feeding paper into a printer is characterized in that: the paper taking device comprises a base, a paper taking plate, a paper taking shaft, a paper taking wheel and an elastic pushing device, wherein the paper taking plate, the paper taking shaft, the paper taking wheel and the elastic pushing device are all arranged on the base, two ends of the upper portion of the paper taking plate are rotatably connected to the base, the axial direction of the paper taking shaft is parallel to the length direction of the paper taking plate, the paper taking shaft is located in front of the paper taking plate, the paper taking wheel is fixed to the periphery of the paper taking shaft, a paper taking space is formed between the paper taking plate and the paper taking wheel, the elastic pushing device is located on the rear side of the paper taking plate, and the elastic pushing device is used for pushing the lower end of the paper taking plate to be close to the direction of the paper taking wheel.
2. The front-end paper-taking structure according to claim 1, characterized in that: the elastic pushing device comprises a torsional spring, one end of the torsional spring is fixed on the base, and the other end of the torsional spring is abutted to the lower end of the rear side of the paper taking plate.
3. The front-end paper-taking structure according to claim 2, characterized in that: the elastic pushing device further comprises an elastic control mechanism, and the elastic control mechanism is used for controlling whether the torsion spring applies elastic pushing force to the rear side of the paper taking plate.
4. The front-end paper-taking structure according to claim 3, characterized in that: elasticity control mechanism includes movable plate and drive assembly, the movable plate is connected on the base, the movable plate extends along getting cardboard length direction, and it is located and gets the cardboard rear, the inclined guide face has been seted up to one side of getting the cardboard back to the movable plate, the torsional spring butt is in the tip butt of getting the cardboard on the inclined guide face, drive assembly is used for promoting get the cardboard and remove along getting cardboard length direction to when the movable plate removes, the torsional spring removes along the inclined guide face to make the torsional spring tip be close to get cardboard and butt in getting the cardboard rear side or the torsional spring tip keeps away from and get the cardboard.
5. The front-end paper-taking structure according to claim 4, characterized in that: the drive assembly includes actuating lever, swivel nut and driving piece, the actuating lever connect in on the base, just the tip of actuating lever with the movable plate is kept away from the one end of torsional spring and is connected, the actuating lever periphery is equipped with the external screw thread section, the swivel nut circle is located the actuating lever periphery, just the swivel nut internal periphery be equipped with external screw thread section threaded connection's internal thread section, the driving piece is used for driving the swivel nut and rotates.
6. The front-end paper-taking structure according to claim 5, characterized in that: the length of the external thread section is a, the length of the internal thread section is b, and the distance between one end and the other end of the inclined guide surface along the length direction of the moving plate is c, wherein a + b > c.
7. The front-end paper-taking structure according to claim 6, characterized in that: one end, close to the driving rod, of the moving plate is provided with a connecting groove along the length direction, the end, close to the moving plate, of the driving rod is provided with a connecting block along the length direction, and the length of the connecting groove is larger than that of the connecting block;
the driving assembly further comprises a compression spring, the abutting step is arranged on the periphery of the driving rod, the compression spring ring is arranged outside the driving rod, one end of the compression spring abuts against the moving plate, and the other end of the compression spring abuts against the abutting step.
8. The front-end paper-taking structure according to claim 5, characterized in that: the thread sleeve is characterized in that meshing teeth are arranged on the outer side of the thread sleeve along the circumferential direction, and the driving piece drives the meshing teeth to rotate so as to drive the thread sleeve to rotate.
9. The front-end paper-taking structure according to claim 2, characterized in that: the lower part of the rear side of the paper taking plate is provided with a limiting groove for the end part of the torsion spring to enter.
10. A printer, characterized by: comprising the front-end pickup structure of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220983146.2U CN217201020U (en) | 2022-04-26 | 2022-04-26 | Front-end paper taking structure and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220983146.2U CN217201020U (en) | 2022-04-26 | 2022-04-26 | Front-end paper taking structure and printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217201020U true CN217201020U (en) | 2022-08-16 |
Family
ID=82776733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220983146.2U Active CN217201020U (en) | 2022-04-26 | 2022-04-26 | Front-end paper taking structure and printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217201020U (en) |
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2022
- 2022-04-26 CN CN202220983146.2U patent/CN217201020U/en active Active
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