CN1141236C

CN1141236C - Paper feeding system with mechanism for taking out and distributing paper

Info

Publication number: CN1141236C
Application number: CNB001064592A
Authority: CN
Inventors: 郭盈显; 林宗德
Original assignee: Acer Computer Co Ltd
Current assignee: BenQ Corp
Priority date: 2000-04-11
Filing date: 2000-04-11
Publication date: 2004-03-10
Anticipated expiration: 2020-04-11
Also published as: CN1317412A

Abstract

The present invention relates to a paper-feeding system which comprises an outer shell, a paper storing box, a paper feeding passage, a paper taking mechanism, a paper separating mechanism and a driving device, wherein the paper taking mechanism comprises a paper taking swing arm and a paper taking roller; the paper taking swing arm comprises a fixed axis rotatablely fixed in the outer shell; the swinging end of the paper taking swing arm is extended into or move away from the paper storing box with the fixed axis. The paper taking roller is rotatablely arranged at the swinging end, when the swinging end is extended into the paper storing box, the paper taking roller can rotatablely send pieces of paper in the paper storing box into the paper feeding passage. The paper separating mechanism comprises a paper separating roller and a paper separating friction plate which are arranged at the upper side and the lower side of the paper feeding passage; when the two pieces of paper are simultaneously feed between the paper separating roller and the friction plate, the paper separating roller can drive the paper at the upper side.

Description

Has the feeding system of getting paper and paper distributing mechanism

Technical field

The present invention relates to a kind of feeding system, particularly relate to a kind of feeding system of getting paper and paper distributing mechanism that has.

Background technology

Feeding system is widely used in various photoprinter, chopping machine or the facsimile apparatus, and its radical function is that more than ground of paper are taken out, and it is sent to next device to do further processing.

See also Fig. 1.Fig. 1 is the scheme drawing of existing feeding system 10.Feeding system 10 includes a storage paper box 12, and holds paper act plate 14, a bar 16 and a pickup roller 18 at one stroke.Hold the paper 11 that paper lifts on the plate 14 and can touch pickup roller 18 when lifting bar 16 towards anticlockwise motion and drive when holding paper and lifting plate 14 and rise, being positioned at, this moment, pickup roller 18 was that rotary mode paper 11 is sent storage paper box 12, to reach the purpose of paper feed.

Yet above-mentioned feeding system 10 only utilizes pickup roller 18 to finish the action of paper feed, so be easy to produce the situation that repeats paper feed (Double Feeding), causes the situation of machine paperboard.

Summary of the invention

The object of the present invention is to provide a kind of feeding system of getting paper and paper distributing mechanism that has simultaneously, to address the above problem.

The object of the present invention is achieved like this, and a kind of feeding system promptly is provided, and it includes: a shell; One storage paper box is fixed in and is used for bearing paper in this shell, and it includes a front end; One paper-feeding passage is located at the outside of this storage paper box front end; One paper-fetching mechanism, be located at the top of this storage paper box, it includes: one gets the paper spiral arm, and it includes an anchor shaft and a swinging end, this anchor shaft is fixed in this shell in rotating mode, and this swinging end can stretch into along with the rotation of this anchor shaft or away from this storage paper box; And a pickup roller, be located at this swinging end in rotating mode, when this swinging end stretched into this storage paper box, the paper that the rotary mode of this pickup roller will be stored up in the paper box was sent into this paper-feeding passage via the front end of this storage paper box; One paper distributing mechanism, it includes the both sides up and down that a comber and a separation friction lining are located at this paper-feeding passage respectively, when two paper enter between this comber and this separation friction lining simultaneously, this comber can continue the paper that is positioned at upside to drive forward, and this separation friction lining can make the paper that is positioned at downside halt till this paper that is positioned at upside passes through; And an actuating device, be used for driving this and get paper spiral arm, pickup roller and comber; Wherein when this actuating device action, this swinging end of getting the paper spiral arm can stretch into this storage paper box, this pickup roller begins to rotate the paper that makes in this storage paper box and enters this paper-feeding passage, and the comber of this paper distributing mechanism continues to drive forward this paper makes this paper by this paper-feeding passage.

Description of drawings

Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:

Fig. 1 is the scheme drawing of existing feeding system;

Fig. 2 is the scheme drawing of feeding system of the present invention;

Fig. 3 is feeding system shown in Figure 2 scheme drawing when carrying out the paper feed action;

Fig. 4 is the scheme drawing of another embodiment of the present invention feeding system;

Fig. 5 is feeding system shown in Figure 4 scheme drawing when carrying out the paper feed action;

Fig. 6 is the scheme drawing of the actuator drives trace of feeding system shown in Figure 4;

Fig. 7 is the scheme drawing of another linkage of feeding system shown in Figure 4.

The specific embodiment

See also Fig. 2 and Fig. 3, Fig. 2 is the scheme drawing of feeding system 50 of the present invention, and Fig. 3 is feeding system 50 shown in Figure 2 scheme drawing when carrying out the paper feed action.Feeding system 50 of the present invention includes a shell (not shown), one the storage paper box 54 be fixed in be used in this shell bearing paper 11, one paper-feeding passages 58, one paper-fetching mechanisms 60 be located at the storage paper box 54 the top, a paper distributing mechanism 62, and an actuating device 64.Storage paper box 54 includes a front end 56, and paper-feeding passage 58 is located at the outside of storage paper box front end 56.Paper-fetching mechanism 60 includes one and gets a paper spiral arm 66 and a pickup roller 68.Get paper spiral arm 66 and include an anchor shaft 70 and a swinging end 72, wherein anchor shaft 70 is fixed in this shell in rotating mode, swinging end 72 can stretch into along with the rotation of anchor shaft 70 or away from the storage paper box 54.Pickup roller 68 is located at swinging end 72 in rotating mode, when swinging end 72 stretches into storage during paper box 54, pickup roller 68 is adjacent to the paper that places in the storage paper box 54, therefore rotary mode is sent into paper-feeding passage 58 with this each paper 11 via the front end 56 of storage paper box 54.

Paper distributing mechanism 62 includes a comber 74 and a separation friction lining 76, is located at the both sides up and down of paper-feeding passage 58 respectively.When two paper 11 enter between comber 74 and the separation friction lining 76 simultaneously, the paper 11 that comber 74 can will be positioned at upside continues to drive forward, and separation friction lining 76 can make the paper 11 that is positioned at downside halt till this paper 11 that is positioned at upside passes through.

Actuating device 64 is to be used for driving getting paper spiral arm 66, pickup roller 68 and comber 74.Actuating device 64 comprises a motor 78 and a driving device 80.Driving device 80 is located at motor 78 and is got between paper spiral arm 66, pickup roller 68 and the comber 74.Driving device 80 includes the application force that a gear cluster 82 is used for transmitting motor 78 and gets paper spiral arm 66, pickup roller 68 and comber 74 with driving.Gear cluster 82 includes three transmission gears 84,86 and 88.When motor 78 when a predetermined direction rotates, driving device 80 can drive in the mode of rotating simultaneously and get paper spiral arm 66, pickup roller 68 and comber 74.As shown in Figure 3, when motor 78 when anticlockwise direction rotates, comber 74 is rotation toward the clockwise direction, and drive transmission gear 84 rotates towards anticlockwise direction, transmission gear 84 can drive transmission gear 86 and get paper spiral arm 66 and rotate toward the clockwise direction, transmission gear 86 can drive transmission gear 88 towards the anticlockwise direction rotation, and pickup roller 68 then can be driven rotation toward the clockwise direction by transmission gear 88.

As shown in Figure 3, when actuating device 64 actions, just motor 78 is when anticlockwise direction rotates, the swinging end 72 of getting paper spiral arm 66 can stretch into storage paper box 54 and be adjacent to the paper that stores up in the paper box 54, pickup roller 68 can begin to rotate the paper 11 that makes in the storage paper box 54 and enter paper-feeding passage 58, the comber 74 of paper distributing mechanism 62 can continue to drive forward paper 11 makes paper 11 by paper-feeding passage 58, to reach the purpose of paper feed.

See also Fig. 4 and Fig. 5.Fig. 4 is the scheme drawing of another embodiment of the present invention feeding system 90.Fig. 5 is feeding system 90 shown in Figure 4 scheme drawing when carrying out the paper feed action.With feeding system 50 main differences be, feeding system 90 includes the front end 56 that a baffle plate 92 is located at storage paper box 54 in a movable manner in addition, be used for stopping that the paper 11 in the storage paper box 54 enters paper-feeding passage 58, and a linkage 93 is located at, and this shell is interior can be driven also by driving device 80.Linkage 93 is a trace 94, and its two ends are respectively one first interlock end 96 and one second interlock end 98.The downside that the first interlock end 96 of trace 94, the second interlock end 98 lay respectively at baffle plate 92 and separation friction lining 76 is used for driving baffle plate 92 and separation friction lining 76 respectively.Driving device 80 is got paper spiral arm 66, pickup roller 68 and the comber 74 except meeting drives in the mode of rotating, and also can drive trace 94 simultaneously.Driving device 80 includes another gear cluster (not shown) in addition to drive trace 94.

As shown in Figure 5, when motor 78 when anticlockwise direction rotates, the first interlock end 96 of trace 94 can descend and make baffle plate 92 to remove from storing up paper box front end 56, the paper 11 in the storage paper box 54 thereby entered paper-feeding passage 58.Simultaneously, the second interlock end 98 of trace 94 can rise and separation friction lining 76 is abutted against to comber 74, and the comber 74 of paper distributing mechanism 62 thereby the paper 11 that is able to enter paper-feeding passage 58 drive forward.

When motor 78 rotated toward the clockwise direction, the first interlock end 96 can rise and drive baffle plate 92 made baffle plate 92 move to storage paper box front end 56, enters paper-feeding passage 58 to stop the paper 11 in the storage paper box 54.Simultaneously, the second interlock end 98 can descend and drive separation friction lining 76 makes separation friction lining 76 separate with comber 74, and this moment, the comber 74 of paper distributing mechanism 62 promptly can't drive the paper 11 that enters paper-feeding passage 58 forward (being " driving to storage paper box 54 directions ").Feeding system 90 is got back to state as shown in Figure 4.

Feeding system 90 includes a sensing device 100 in addition, and to be located at paper-feeding passage 58 other and be positioned at the rear side of paper distributing mechanism 62, is used for this paper 11 of sensing, and a control circuit (not shown) is used for deciding according to the output of sensing device 100 hand of rotation of motor 78.Before the leading edge of paper 11 is passed through paper distributing mechanism 62, this control circuit can be controlled motor 78 rotates in the counterclockwise direction to carry out the paper feed action it, and after the leading edge of paper 11 is by paper distributing mechanism 62 and when touching sensing device 100, this control circuit can be controlled motor 78 is rotated in a clockwise direction to stop the paper feed action it, carry out next one action then, for example: adjust paper front edge or do not adjust paper front edge and the action that directly prints, scan.

See also Fig. 6.Fig. 6 is the scheme drawing that the driving device 80 of feeding system 90 shown in Figure 4 drives trace 94.The driving device 80 of feeding system 90 includes a gear cluster 102 in addition and a torque limit device (Torque Limiter) 104 is used for limiting the torsion that is sent to trace 94, and guarantee that driving separation friction lining 76 at the second interlock end 98 is abutted against behind comber 74, or first after interlock end 96 drives baffle plates 92 and moves to storage paper box front end 56, motor 78 still can be rotated further with drive and get paper spiral arm 66, pickup roller 68, and comber 74.

See also Fig. 7.Fig. 7 is the scheme drawing of another linkage 95 of feeding system 90 shown in Figure 4.Linkage 95 shown in Figure 7 is that with linkage 93 main difference parts shown in Figure 4 linkage 95 is three gears 106,108,110.The first interlock end 96 and the second interlock end 98 of linkage 95 lay respectively on gear 106 and 110.So as long as a gear in driving three gears 106,108,110 can reach the drive first

interlock end

96,98 risings of the second interlock end or the effect that descends.

Compare with existing feeding system 10, feeding system 50 of the present invention, 90 have the paper of getting and paper distributing mechanism 60 simultaneously, 62, can reduce repetition paper feed or situation that can't paper feed, and get paper and paper distributing mechanism 60, the motor 78 of 62 while driven devices 64 drives, when actuating device 64 actions, the swinging end 72 of getting paper spiral arm 66 can stretch into storage paper box 54 and be adjacent to the paper that places in the storage paper box 54, the paper 11 that pickup roller 68 can begin to rotate in the storage paper box 54 enters paper-feeding passage 58, and the comber 74 of paper distributing mechanism 62 can continue to drive forward paper 11 makes paper 11 by paper-feeding passage 58.The present invention also provides a linkage, not only can reduce and get paper and paper distributing mechanism 60,62 contingent misoperation when interlock, also can reduce the quantity of the required element of feeding system.

The above only is preferred embodiment of the present invention, and all equalizations of doing by claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.

Claims

1. feeding system, it includes:

One shell;

One storage paper box is fixed in and is used for bearing paper in this shell, and it includes a front end;

One paper-feeding passage is located at the outside of this storage paper box front end;

One paper-fetching mechanism is located at the top of this storage paper box, and it includes:

One gets the paper spiral arm, and it includes an anchor shaft and a swinging end, and this anchor shaft is fixed in this shell in rotating mode, and this swinging end can stretch into along with the rotation of this anchor shaft or away from this storage paper box; And

One pickup roller is located at this swinging end in rotating mode, and when this swinging end stretched into this storage paper box, the paper that the rotary mode of this pickup roller will be stored up in the paper box was sent into this paper-feeding passage via the front end of this storage paper box;

One paper distributing mechanism, it includes the both sides up and down that a comber and a separation friction lining are located at this paper-feeding passage respectively, when two paper enter between this comber and this separation friction lining simultaneously, this comber can continue the paper that is positioned at upside to drive forward, and this separation friction lining can make the paper that is positioned at downside halt till this paper that is positioned at upside passes through; And

One actuating device is used for driving this and gets paper spiral arm, pickup roller and comber;

Wherein when this actuating device action, this swinging end of getting the paper spiral arm can stretch into this storage paper box, this pickup roller begins to rotate the paper that makes in this storage paper box and enters this paper-feeding passage, and the comber of this paper distributing mechanism continues to drive forward this paper makes this paper by this paper-feeding passage.

2. feeding system as claimed in claim 1, wherein this actuating device is that a motor and a driving device are located at this motor and this is got between paper spiral arm, pickup roller and the comber, when this motor when a predetermined direction rotates, this driving device can drive this in the mode of rotating simultaneously and get paper spiral arm, pickup roller and comber.

3. feeding system as claimed in claim 2, wherein this driving device includes the application force that a gear cluster is used for transmitting this motor and gets paper spiral arm, pickup roller and comber to drive this.

4. feeding system as claimed in claim 2, it includes in addition:

One baffle plate is located at the front end of this storage paper box in a movable manner, is used for stopping that the paper in this storage paper box enters this paper-feeding passage; And

One linkage is located in this shell and can be driven by this driving device, and this linkage includes one first interlock end and is used for driving this baffle plate, and one second interlock end is used for driving this separation friction lining;

Wherein when this motor during towards the rotation of this predetermined direction, this driving device can drive this linkage in the mode of rotating simultaneously, the first interlock end of this linkage can make this baffle plate remove and make the paper in this storage paper box be entered this paper-feeding passage from this storage paper box front end, the second interlock end of this linkage can make this separation friction lining be abutted against to this comber simultaneously, and the paper that makes the comber of this paper distributing mechanism be able to enter this paper-feeding passage drives forward.

5. feeding system as claimed in claim 4, wherein this linkage is a trace, this first and second interlock end lays respectively at the two ends of this trace.

6. feeding system as claimed in claim 4, wherein this linkage is a plurality of gears, this first and second interlock end lays respectively on two gears in these a plurality of gears.

7. feeding system as claimed in claim 4, wherein first and second interlock end of this linkage lays respectively at the downside of this baffle plate and this separation friction lining, wherein when this motor during towards the rotation of this predetermined direction, this driving device descends the first interlock end of this linkage and makes this baffle plate downward from this storage paper box front end.