CN2796269Y - Sheet-fed scanner - Google Patents

Abstract

The utility model discloses a paper feed type scanner, including scanning casing, paper feed casing and lay in the conveying tray between the two. The upper surface of the scanning shell is provided with a scanning window, and a scanning mechanism is arranged inside the scanning window. The paper feeding shell is connected above the scanning shell, and a paper feeding mechanism is arranged inside the paper feeding shell. The paper feeding mechanism bears the external bendable manuscript for scanning and conveys the external bendable manuscript from the upper part of the scanning window of the scanning shell. The conveying tray is positioned above the scanning window, bears the external bendable manuscript or the non-bendable manuscript for scanning, and horizontally moves between the scanning shell and the paper feeding shell to drive the external manuscript to be conveyed from the upper part of the scanning window of the scanning shell. The scanning mechanism scans the external manuscript passing through the upper part of the scanning window of the scanning shell, thereby realizing the scanning of the inflexible external manuscript.

Description

Sheet-fed scanner

technical field

The utility model relates to a scanner, in particular to a paper-fed scanner.

Background technique

Traditional scanners are mainly divided into flatbed scanners and sheet-fed scanners. As shown in Figure 2, the existing paper-fed scanner 10' includes a scanning housing 1', a scanning window 11' is arranged on the upper surface of the scanning housing 1', a scanning mechanism 2' is arranged inside, and the paper-feeding housing is connected above 3'. The scanning mechanism is used to scan external manuscripts passing above the scanning window 11' of the scanning housing 1'. The inside of the paper feeding housing 3' is provided with a paper feeding mechanism, which is used to transmit external manuscripts, including a paper picking roller group 41 ', a paper feeding roller group 42', a pressing plate 43' and a roller driving mechanism (not shown).

However, the existing sheet-fed scanner 10' as described above can only transmit and scan bendable external manuscripts, but cannot perform scanning on non-bendable manuscripts because it uses the roller set to convey external manuscripts. Transmission and scanning bring a lot of inconvenience to users of sheet-fed scanners.

Contents of the invention

In view of the defects in the above-mentioned prior art, the purpose of the utility model is to provide a paper-fed scanner, which can realize the scanning of non-bendable external manuscripts, and is convenient for users to use.

In order to achieve the above purpose, the utility model provides a paper-feeding scanner, comprising: a scanning housing, a scanning window is arranged on the upper surface of the scanning housing; a paper-feeding housing is connected above the scanning housing; a paper-feeding mechanism is arranged In the paper-feeding casing, the external bendable manuscripts for scanning are carried and conveyed from above the scanning window of the scanning casing; the transmission tray is arranged between the scanning casing and the paper-feeding casing, And located above the scanning window, it carries the external bendable manuscript or non-bendable manuscript for scanning, and moves horizontally between the scanning casing and the paper feeding casing to drive the external bendable manuscript or non-bendable manuscript transported from above the scanning window of the scanning housing; and the scanning mechanism is arranged in the scanning housing and scans the external manuscripts passing above the scanning window of the scanning housing.

As mentioned above, the paper-fed scanner of the present invention carries and transmits the external non-bendable manuscripts through the transmission tray, thereby realizing the scanning of the non-bendable external manuscripts, which is convenient for users to use.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

FIG. 1 is a schematic cross-sectional view of the paper-fed scanner of the present invention.

FIG. 2 is a schematic cross-sectional view of a conventional sheet-fed scanner.

Detailed ways

Please refer to Fig. 1, the paper-fed scanner 10 of the present invention includes a scanning housing 1, the scanning window 11 is arranged on the upper surface of the scanning housing 1, the scanning mechanism 2 is arranged inside, the paper-feeding housing 3 is fixed on the top, and the scanning housing A conveying tray is arranged between the body 1 and the paper feeding case 3 .

The scanning mechanism 2 is used to scan the non-transparent reflective manuscript passing above the scanning window 11, and includes a bearing base 20, and a reflective manuscript scanning light source 21 and a light transmission mechanism 22 are arranged in the bearing base 20 according to a specific positional relationship. and an image sensing element 23 . The light transmission mechanism 22 includes a reflector 24 and a lens group 25 . An opening 26 is formed on the upper surface of the carrying base 20 facing the reflector 24 , and the opening 26 is located directly below the scanning window 11 of the scanning housing 1 .

The paper feeding casing 3 is connected with the scanning casing 1 as a whole and sealed as much as possible to prevent light leakage. The lower surface of the paper feeding casing 3 is hollowed out at the scanning window 11 facing the scanning casing 1 for light to pass through the scanning window 11 . A paper feeding mechanism and a penetrating document scanning light source 45 are arranged inside the paper feeding housing 3 .

The paper feeding mechanism is used to carry and transport the bendable non-transparent reflective manuscripts and the translucent transmissive manuscripts, including the paper pickup roller group 41, the paper feed roller group 42, the pressure plate 43 and the corresponding roller driving mechanism (not shown). The pressing plate 43 is located directly above the scanning window 11 , and the middle part of the bottom surface of the pressing plate 43 is recessed upward to form an alcove 44 . The penetrating manuscript scanning light source 45 is a linear light source (such as a light tube) with a small area, which is fixed in the alcove 44 .

The transmission tray is located above the scanning window, driven by the tray driving mechanism, and is used to carry external documents for scanning, especially non-bendable external documents. In this embodiment, the conveying tray is a transparent conveying belt 5 . The tray driving mechanism includes a first driving roller 61 , a second driving roller 62 and a driving motor (not shown). The first driving roller 61 and the second driving roller 62 are respectively fixed above the front end and the rear end of the scanning housing 1, and the conveyor belt 5 is wound around the first driving roller 61 and the second driving roller 62 and is under tension. state, its upper surface forms a horizontal conveying surface.

When the user scans the bendable document, the pick-up roller set 41 and the feed roller set 42 of the paper feeding mechanism transport the bendable outer penetrating manuscript or reflective manuscript from between the pressure plate 43 and the scanning window 11 . At this time, correspondingly turn on the light source 45 for scanning the penetrating manuscript or the scanning light source 21 for reflecting the manuscript, emit light to transmit the light through the penetrating manuscript or reflect it through the opening 26 of the scanning mechanism 2 to the light transmission mechanism 22 through the opening 26 of the scanning mechanism 2, and then The image is transmitted to the image sensing element 23 and imaged thereon, thus completing the scanning.

When the user scans the non-bendable manuscript, the non-bendable external penetrating manuscript or reflective manuscript is placed on the horizontal conveying surface on the upper surface of the rear end of the conveyor belt 5, and the transmissive manuscript scanning light source 45 or reflective manuscript is turned on correspondingly. The light source 21 is scanned. The driving motor drives the first driving roller 61 and the second driving roller 62 to rotate clockwise at a constant speed, thereby driving the conveyor belt 5 to move horizontally forward around the first driving roller 61 and the second driving roller 62, thereby driving the external penetration The manuscript or reflected manuscript moves forward at a constant speed. When the external penetrating manuscript or reflective manuscript passes above the scanning window 11, the penetrating manuscript scanning light source 45 or the reflective manuscript scanning light source 21 correspondingly emits light to transmit through the penetrating manuscript or reflected by the reflective manuscript to be reflected by the scanning mechanism 2. The opening 26 transmits the light to the light transmitting mechanism 22 , and then transmits to the image sensing element 23 and forms an image thereon, thereby starting to scan. When the external manuscript completely passes through the top of the scanning window 11 , the scanning ends, and finally the external manuscript is transported by the conveyor belt 5 to the open space outside the sheet-fed scanner 10 . In addition, in actual use, the bendable manuscript can also be delivered by using the delivery tray, and the operation process is the same as above, and will not be repeated here.

Claims (4)

1, a kind of paper feeding scanner comprises:

The scanning housing, scanning housing upper surface is provided with the scanning window, the inner sweep mechanism of laying, the top connects the paper feed housing;

Paper feed mechanism is laid in the paper feed housing, and carrying transmits from the scanning window top of described scanning housing for the outside bent contribution of scanning and with the bent contribution in outside; And

Sweep mechanism is to scanning by the outside contribution above the scanning window of described scanning housing;

It is characterized in that:

This paper feeding scanner also comprises a delivery tray, this delivery tray is laid between scanning housing and the paper feed housing, and be positioned at described scanning window top, carrying is for the outside bent contribution or the not bent contribution of scanning, and horizontal movement between scanning housing and paper feed housing, and drive outside bent contribution or the transmission above the scanning window of described scanning housing of not bent contribution.

2, paper feeding scanner as claimed in claim 1, it is characterized in that: also comprise a tray drive mechanism, this tray drive mechanism comprises first driving rolls, second driving rolls and a CD-ROM drive motor, described delivery tray is a transparent conveyer belt, be surrounded on described first driving rolls and second driving rolls and be in tension, described CD-ROM drive motor drives first driving rolls and the second driving rolls average rate is rotated.

3, paper feeding scanner as claimed in claim 1, it is characterized in that: this sweep mechanism comprises a bearing base, lay reflection original text scanning light source, light connecting gear and image induction element in the bearing base, reflection original text scanning light source emission light is to outside contribution, the light connecting gear is sent to image induction element with extraneous light, and imaging on image induction element.

4, paper feeding scanner as claimed in claim 1, it is characterized in that: comprise that also one penetrates the original text scanning light source, described paper feed mechanism further comprises a pressing plate, pressing plate is positioned at directly over the scanning window of described scanning housing, pressing plate bottom surface middle part upwards is recessed to form an alcove, and the described original text scanning light source that penetrates is fixedly arranged in the alcove and launches light to outside contribution.