PAPER FEEDING APPARATUS OF PRINTER

Abstract

A paper feeding apparatus includes a bracket. A first feeding shaft is pivotably mounted on the bracket. A number of first feeding rollers is mounted on the first feeding shaft. The first feeding rollers rotate together with the first feeding shaft to contact a sheet of paper and move the paper forwards. A number of fans are mounted on the first feeding shaft. The fans rotate together with the first feeding shaft to drive air against the paper to prevent it becoming wrapped around one of the rollers.

Description

BACKGROUND

1. Technical Field

The present disclosure relates to feeding apparatuses, and more particularly to a paper feeding apparatus of a printer.

2. Description of Related Art

Printers are often equipped with rollers to feed paper or other printable material into a printing area of the printer. Unfortunately, the printable material often gets wrapped around one or more rollers and jams the system.

Therefore, there is room for improvement within the art.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.

FIG. 1 is an exploded and isometric view of an embodiment of a paper feeding apparatus of a printer.

FIG. 2 is an assembled view of the paper feeding apparatus of FIG. 1.

FIG. 3 is another assembled view of the paper feeding apparatus of FIG. 1.

FIG. 4 is another more assembled view of the paper feeding apparatus of FIG. 1.

DETAILED DESCRIPTION

The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.”

FIG. 1 shows a paper feeding apparatus of a printer in accordance with an embodiment. The paper feeding apparatus includes a bracket 10, a first feeding shaft 30, and a second feeding shaft 50.

The bracket 10 includes a supporting surface 11. A row of blocking pins 13 and a row of restricting pieces 14 are located on the supporting surface 11. The row of blocking pins 13 is parallel to the row of restricting pieces 14. Each of the row of the blocking pins 13 includes a cambered surface 131 which faces to the row of restricting pieces 14. A receiving room 16 is defined between the row of blocking pins 13 and the row of restricting pieces 14.

A pair of supporting plates 15 are located on the supporting surface 11. Each of the pair of supporting plates 15 defines a pivot hole 151.

Opposites ends of the first feeding shaft 30 can be inserted in the pivot holes 151 of the pair of supporting plates 15. A plurality of first feeding rollers 33 and a plurality of fans 31 are in a staggered arrangement on the first feeding shaft 30. One of the plurality of fans 31 is located between two of the plurality of first feeding rollers 33. One of the plurality of first feeding rollers 33 is located between two of the plurality of fans 31. The plurality of first feeding rollers 33 and the plurality of fans 31 are rotatable together with the first feeding shaft 30.

The second feeding shaft 50 can be pivotally mounted in the receiving room 16. A plurality of second feeding rollers 53 are mounted on the second feeding shaft 50. In one embodiment, the plurality of first feeding rollers 33 and the plurality of second feeding rollers 53 are made of rubber, which can generate large friction force to conveniently feed papers.

Referring to FIGS. 1 and 2, in assembly, the opposites ends of the first feeding shaft 30 are inserted into the pivot holes 151 of the pair of supporting plates 15 to pivotally mount the first feeding shaft 30 on the bracket 10. The second feeding shaft 50 is pivotally mounted in the receiving room 16. With this arrangement, the first feeding shaft 30 is parallel to the second feeding shaft 50. In one embodiment, the first feeding shaft 30 and the second feeding shaft 50 are rotated by different motors. In another embodiment, the first feeding shaft 30 and the second feeding shaft 50 are rotated by a same motor.

Referring to FIGS. 1 to 4, while the paper feeding apparatus feeds a sheet of paper 80, the paper 80 is located on the first feeding shaft 30 and the second feeding shaft 50. The first feeding shaft 30 and the second feeding shaft 50 rotate. The first feeding rollers 33 and the second feeding rollers 53 move the paper 80 forwards. The fans 31 rotate to drive air flowing through a wrapped portion 81 of the paper 80 to smooth the wrapped portion 81. Therefore, the paper 80 can be avoided to be jammed in the printer.

It is to be understood, however, that even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the present disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims

1. A paper feeding apparatus, comprising:

a bracket with a first feeding shaft pivotally mounted thereon, the first feeding shaft configured to feed a paper, a plurality of first feeding rollers mounted on the first feeding shaft, the plurality of first feeding rollers is rotatable together with the first feeding shaft to contact the paper and move the paper forwards; and

a plurality of fans mounted on the first feeding shaft, and the plurality of fans is rotatable together with the first feeding shaft and the plurality of first feeding rollers to drive air flowing through a wrapped portion of the paper to smooth the wrapped portion.

2. The paper feeding apparatus of claim 1, wherein the plurality of first feeding rollers and the plurality of fans are in a staggered arrangement on the first feeding shaft.

3. The paper feeding apparatus of claim 2, wherein one of the plurality of fans is located between two of the plurality of first feeding rollers, and one of the plurality of first feeding rollers is located between two of the plurality of fans.

4. The paper feeding apparatus of claim 1, wherein the first bracket comprises a supporting surface, a pair of supporting plates are located on the supporting surface, each of the pair of supporting plates defines a pivot hole, and opposites ends of the first feeding shaft are inserted in the pivot holes of the pair of supporting plates.

5. The paper feeding apparatus of claim 1, further comprising a second feeding shaft pivotally mounted on the bracket, wherein the second feeding shaft is parallel to the first feeding shaft.

6. The paper feeding apparatus of claim 5, wherein the bracket comprises a supporting surface, a row of blocking pins and a row of restricting pieces are located on the supporting surface, a receiving room is defined between the row of restricting pieces and the row of blocking pins, and the second feeding shaft is pivotally received in the receiving room.

7. The paper feeding apparatus of claim 6, wherein the row of blocking pins is parallel to the row of restricting pieces.

8. The paper feeding apparatus of claim 6, wherein each of the row of the blocking pins comprises a cambered surface which faces to the row of restricting pieces.

9. The paper feeding apparatus of claim 6, wherein a plurality of second feeding rollers are mounted on the second feeding shaft and configured to rotate together with the second feeding shaft, and the plurality of first feeding rollers and the plurality of second feeding rollers are made of rubber, which applies friction force on the paper.

10. A paper feeding apparatus, comprising:

a bracket comprising a supporting surface; and

a first feeding shaft pivotally mounted on the supporting surface;

a plurality of first feeding rollers and a plurality of fans in a staggered arrangement on the first feeding shaft;

wherein the plurality of first feeding rollers is rotatable together with the first feeding shaft to contact a paper and move the paper forwards, and the plurality of fans is rotatable together with the first feeding shaft to drive air flowing through a wrapped portion of the paper to smooth the wrapped portion.

11. The paper feeding apparatus of claim 10, wherein one of the plurality of fans is located between two of the plurality of first feeding rollers, and one of the plurality of first feeding rollers is located between two of the plurality of fans.

12. The paper feeding apparatus of claim 10, wherein a pair of supporting plates are located on the supporting surface, each of the pair of supporting plates defines a pivot hole, and opposites ends of the first feeding shaft are inserted in the pivot holes of the pair of supporting plates.

13. The paper feeding apparatus of claim 10, further comprising a second feeding shaft pivotally mounted on the bracket, wherein the second feeding shaft is parallel to the first feeding shaft.

14. The paper feeding apparatus of claim 13, wherein a row of blocking pins and a row of restricting pieces are located on the supporting surface, a receiving room is defined between the row of restricting pieces and the row of blocking pins, and the second feeding shaft is pivotally received in the receiving room.

15. The paper feeding apparatus of claim 14, wherein the row of blocking pins is parallel to the row of restricting pieces.

16. The paper feeding apparatus of claim 14, wherein each of the row of the blocking pins comprises a cambered surface which faces to the row of restricting pieces.

17. The paper feeding apparatus of claim 14, wherein a plurality of second feeding rollers are mounted on the second feeding shaft and configured to rotate together with the second feeding shaft, and the plurality of first feeding rollers and the plurality of second feeding rollers are made of rubber, which applies friction force on the paper.

18-19. (canceled)