CN1157317C

CN1157317C - Feeder

Info

Publication number: CN1157317C
Application number: CNB001176110A
Authority: CN
Inventors: 郭盈显; 林宗德
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2000-05-24
Filing date: 2000-05-24
Publication date: 2004-07-14
Anticipated expiration: 2020-05-24
Also published as: CN1324729A

Abstract

The present invention relates to a feeding device which uses a stop device controlled by a torsion limiting device to position fed paper. When the stop device is lifted to set height so as to allow fed objects to pass through, the torsion limiting device can generate idle running, and after the fed objects completely pass through the stop device, the stop device can restore initial height from the set height through the weight of the main body of the stop device. In this way, the fed paper can be positioned once more.

Description

Feed arrangement

Technical field

The present invention relates to a kind of feed arrangement, particularly relate to a kind of weight of baffle plate of can utilizing itself to be fed the feed arrangement of paper location.

Background technology

On office work machines such as present photoprinter, facsimile apparatus, printer in the employed automatic carriage, when the paper that is fed had carried out two both during the transmission between the allocation (for example: be sent to the office work machine intimate when further handling from storage paper groove), automatic carriage adopts a baffle plate to finish the action of paper alignment, location, and most baffle plates drives in the mode that ejects from lower to upper by a transmission device.

Yet the element that being provided with of transmission device will be caused above-mentioned paper advance mechanism increases and improves design-calculated difficulty Cheng Du, and in the feeding that may produce excessive clamping strength in the process and stop paper of presenting of paper, influences presenting of next paper.

Summary of the invention

The improvement that the objective of the invention is to be directed to above-mentioned prior art and propose so is convenient to several paper are presented.

The object of the present invention is achieved like this, a kind of feed arrangement promptly is provided, be applicable to several paper in order from one first both allocation move to one second both allocation, this feed arrangement comprises: one first pick-off unit, with friction mode for this first both the paper of allocation move toward this second both allocation; One second pick-off unit, with friction mode for the paper feed of this first pick-off unit institute feeding to this second both allocation; An and stop device, can between one first height and one second height, moving, this stop device this first when height in order to align for this paper and to locate, this stop device this second height the time allow this paper from this first both allocation move through this shift motion and arrive at this second both allocation, and when this paper from this first both allocation fully when this stop device, this stop device can be by its deadweight this second highly moves to this first height certainly.

According to These characteristics, the present invention also comprises a torque limit device, moves between this first and second height in order to drive this stop device.

When this stop device this first when height in order to align for this each paper and to locate, and when this stop device moves to this second height, this paper can be by the moving area of this stop device certainly this first pick-off unit move to this second pick-off unit, this moment, this torque limit device just produced idle running, and when being fed object fully by after the stop device, this stop device can be by the weight of itself returns back to elemental height from both take the altitudes, so to carry out once more location for being fed paper.

The present invention also provides a kind of feeding method, in order to a plurality of be fed object from one first both allocation move to one second both allocation, and above-mentioned feeding method comprises the following steps:

One device is provided, and it has a stop device;

This stop device to one first height that descends, make its with this first both this of allocation be fed object and contact;

Rise this stop device to one second highly, and pass on this to be fed object; And

Transmit this and be fed object, and this stop device that descends is to this first height to this second both allocation.

Description of drawings

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

Figure 1A is the exterior perspective view of feed arrangement 1 of the present invention;

Figure 1B is the inner structure block diagram with Figure 1A feed arrangement 1 of the present invention;

Fig. 2 is the top view of Figure 1B;

Fig. 3 is the generalized section that the line segment A-A of Fig. 2 is carried out;

Fig. 4 A is the generalized section of feed arrangement 1 of the present invention before carrying out the presenting of paper P;

Generalized section when Fig. 4 B carries out correcting for the feed arrangement of the present invention 1 among Fig. 4 A with paper P;

Fig. 4 C carries out the generalized section of paper P when presenting for feed arrangement 1 of the present invention among Fig. 4 B after the correcting of finishing object P;

Fig. 4 D is the generalized section of the feed arrangement of the present invention 1 among Fig. 4 C after finishing the presenting of paper P.

Concrete implementation content

At the feed arrangement in for example Photomechanical printing apparatus, the type printer explanation is proposed at present embodiment, and with paper P as being fed object.

See also Figure 1A, Figure 1B and Fig. 2.

Figure 1A is the exterior perspective view of feed arrangement 1 of the present invention; Figure 1B is the inner structure block diagram with the feed arrangement of the present invention 1 of Figure 1A; Fig. 2 is at the top view of Figure 1B.

As Figure 1A, Figure 1B, Fig. 2, shown in Figure 3, feed arrangement 1 of the present invention mainly includes a housing H, one first pick-off unit 10, one second pick-off unit 11, one stop device 15, one friction lining 16 and a propelling sheave 17, wherein, first, two pick-off

units

10,11 and stop device 15 be arranged at respectively among the housing H, by first, two pick-off

units

10,11 carry out one first both both feedings between the allocation X2 of allocation X1 and one second for several paper P, and by stop device 15 for be arranged at first both several the paper P of allocation X1 align and locate.

Below just explanation is proposed at above-mentioned each device, the structure of element and relation each other thereof.

(a) housing H:

Shown in Figure 1A, Figure 1B, housing H constitutes the outside keystone configuration of feed arrangement 1, this housing H includes an outer cover H-1 (shown in Figure 1A) and a pedestal H-2, wherein, on pedestal H-2, protrude bearing W1, the W2 be formed with the space, W3 and first and second pick-

off unit

10,11 and stop device 15, friction lining 16, propelling sheave 17 can be carried out part covering (shown in Figure 1A) when being combined in pedestal H-2 by outer cover H-1.

(b) first pick-off unit 10:

See also Fig. 3, Fig. 3 represents the generalized section that the line segment A-A according to Fig. 2 is carried out.But the pendulous device that first pick-off unit 10 is made up of a train, by this first pick-off unit 10 in regular turn with paper P to carry out feeding toward second pick-off unit 11.

Please consult Fig. 2 again, the train that first pick-off unit 10 mainly is made of three gears 101,102,103 and the first pickup roller 101R, wherein, gear 103 is arranged at an axostylus axostyle 100, this axostylus axostyle 100 is can bridging on the bearing W1 of pedestal H-2 along the mode that one first axle center I rotates, and the other end of axostylus axostyle 100 is provided with a gear 100G.

As shown in Figure 3, when axostylus axostyle 100 when the first axle center I rotates, this first pick-off unit 10 just can carry out the swing arm campaign by the syntagmatic between the gear 101,102,103 between a primary importance S1 and a second place S2.

When first pick-off unit 10 is positioned at second place S2, can extract action for the paper P of the superiors by driving its in-to-in one first pickup roller 101R, make this paper P be extracted toward second pick-off unit 11 move forward into to.

(c) second pick-off unit 11:

See also Fig. 2, Fig. 3, second pick-off unit 11 is made up of two mutual gears in

mesh

120G, 130G.

As shown in Figure 2, comber 12, the second pickup roller 13 are arranged at respectively on the axostylus axostyle 120,130, wherein, axostylus axostyle 120 is being cross-placed on along the mode that one second axle center II rotates on bearing W1, the W2, and axostylus axostyle 130 is being cross-placed on bearing W1, the W3 along the mode that a third axle heart III rotates.The end of axostylus axostyle 120 is provided with a gear 120G, and the end of axostylus axostyle 130 is provided with a gear 130G, and this two

gear

120G, 130G are meshing with each other, and are engaged with a gear 150G between gear 100G and gear 120G.

(d) stop device 15:

As Fig. 2, shown in Figure 3, stop device 15 includes a cam 15-1 and a baffle plate 15-2, wherein, cam 15-1 is arranged on the axostylus axostyle 150, it can bridge on bearing W1 along the mode that one the 4th axle center IV rotates, and the other end of axostylus axostyle 150 is provided with a torque limit device 152.This torque limit device 152 (for example: spring) includes two plate 152P1,152P2 and an elastic element 152S, wherein, elastic element 152S connects and to be arranged between two plate 152P1, the 152P2, and elastic element 152S compresses by plate 152P2 and be contacted with axostylus axostyle 150, compress by plate 152P1 and be contacted with gear 150G.

As shown in Figure 3, baffle plate 15-2 is the plate of an approximate L type, and the jag of cam 15-1 compresses and is contacted with baffle plate 15-2, and several paper P can utilize the side of baffle plate 15-2 to align and locate.

As shown in Figure 2, this baffle plate 15-2 part is contained in two guide grooves 108 of pedestal H-2, to take in baffle plate 15-2 lower end, make baffle plate 15-2 lower end can stretch into knock hole 108H by the knock hole 108H in this two guide groove 108, thus plate washer 15-2 really logarithm open paper P and align and locate.

(e) friction lining 16:

As shown in Figure 3, friction lining 16 is for having the plate of a first surface 161, this friction lining 16 is articulated on the pedestal H-2 along a pivot 160, and between friction lining 16, pedestal H-2, be provided with a spring 162, restriction by this spring 162 can make its first surface 161 to swing between one the 3rd position S3 and one the 4th position S4, and this friction lining 16 is adjacent to comber 12 by its first surface 161.

(f) propelling sheave 17:

As shown in Figure 3, propelling sheave 17 is for having the roller of a second surface 171, and this propelling sheave 17 is being arranged on along the mode that rotate in an axle center 170 on the pedestal H-2, and this propelling sheave 17 is adjacent to the second pickup roller 13 by second surface 171.

Below just for operating principle and the method that several paper P carry out feeding explanation is proposed at said apparatus and element.

See also Fig. 4 A～Fig. 4 D, and please consult Fig. 2 simultaneously.

Fig. 4 A is that feed arrangement 1 of the present invention is in the generalized section of carrying out before paper P presents, generalized section when Fig. 4 B represents according to the feed arrangement of the present invention 1 among Fig. 4 A paper P to be carried out correcting (deskew), Fig. 4 C represent according to the feed arrangement of the present invention 1 among Fig. 4 B after the correcting of finishing paper P the generalized section when carrying out paper feeding P; And Fig. 4 D represents according to the generalized section of feed arrangement of the present invention 1 after finishing paper feeding P among Fig. 4 C.

Please refer to Fig. 4 A.

When the user will place paper P, motor drives the second pickup roller 13 and clockwise rotates, therefore cam 15-1 clockwise rotates, slide to one first height S01 under the weight of baffle plate 15-2 because of itself, the end of baffle plate 15-2 falls within the knock hole 108H of pedestal H-2, so just can be with the leading edge positioned in alignment of several paper P being put.

Please refer to Fig. 4 B.When wanting paper feed, motor (not shown) drives the second pickup roller 13 and carries out the C.C.W. rotation along a second direction R2, therefore cam 15-1 rotates counterclockwise and drives baffle plate 15-2 and move to one second height S02 on the first height S01, promptly carry out a shift motion among the distance, delta S of this baffle plate 15-2 between first and second height S01, S02, this moment, baffle plate 15-2 touched a stopper section 180 of outer cover H-1 bottom.Simultaneously, gear 103 clockwise rotates, drives first pick-off unit 10 and moves to second place S2 from primary importance S1, and the first pickup roller 101R in first pick-off unit 10 clockwise rotates, and this first pickup roller 101R can move paper P for the friction force of paper P toward comber 12 directions.

Please refer to Fig. 2.Because the rotation of cam 15-1 is driven by axostylus axostyle 150, and the strength that drive shaft rod 150 rotates is to drive torque limit device 152 by gear 150G to be produced.Therefore, when baffle plate 15-2 arrived at the second height S02 via the drive of cam 15-1, because baffle plate 15-2 has touched stopper section 180, so baffle plate can't up move again.At this moment, just can produce idle running between plate 152P1, the 152P2 in gear 150G and the torque limit device 152, baffle plate 15-2 then remains in the second height S02 and no longer up moves.

Please refer to Fig. 3.When the leading edge of paper P moves between the first surface 161 of comber 12, friction lining 16, because the friction force between comber 12, the paper P, and the friction force between the first surface 161 of paper, friction lining 16, can be greater than the friction force between paper P and the paper P, therefore if having two pieces of paper to open P is simultaneously brought to herein, have only the paper P of contact comber 12 to be brought into.Therefore this mechanism can guarantee to have only a piece of paper to open P to be brought to the second pickup roller 13.Because this moment, the second pickup roller 13 rotated along second direction R2, the direction of advancing with paper P is opposite, therefore can carry out the effect of leading edge correcting (deskew) to paper P.In addition, present embodiment also is provided with a spring 162 below friction lining 16, even therefore the thickness of each paper P is had nothing in common with each other, but the still normal operation of this mechanism.

Please refer to Fig. 4 C.After the correcting operation of finishing paper P, motor will drive the second pickup roller 13 and do and clockwise rotate, and the second pickup roller 13 will drive paper P and enter Photomechanical printing apparatus or type printer inside by formed path between the second pickup roller 13, the propelling sheave 17.At this moment, cam 15-1 clockwise rotates, so baffle plate 15-2 is because of sliding to the first height S01 under the weight own.Because baffle plate 15-2 has slided into the knock hole 108H of pedestal H-2 down, so baffle plate 15-2 just can't move down again.At this moment, just can produce idle running between plate 152P1, the 152P2 in gear 150G and the torque limit device 152, baffle plate 15-2 remains in the first height S01 and no longer moves down.

Therefore, after the program of finishing above-mentioned Fig. 4 A～Fig. 4 D, the paper P that is fed just can be entirely from first both allocation X1 be sent to the second both allocation X2, this moment, baffle plate 15-2 just can move to the first height S01 from the second height S02 decline by the weight of itself, can not produce excessive clamping strength and stop the feeding that is fed paper P, so so that carry out presenting of next paper P.

Though disclose the present invention in conjunction with above preferred embodiment; yet it is not in order to restriction the present invention; those skilled in the art can do and change and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined without departing from the spirit and scope of the present invention.

Claims

1. feed arrangement, be applicable to several paper in order from one first both allocation move to one second both allocation, this feed arrangement comprises:

One first pick-off unit, with friction mode for this first both the paper of allocation move toward this second both allocation;

One second pick-off unit, with friction mode for the paper feed of this first pick-off unit institute feeding to this second both allocation; And

One stop device, can between one first height and one second height, moving, this stop device this first when height in order to align for this paper and to locate, this stop device this second height the time allow this paper from this first both allocation move through this shift motion and arrive at this second both allocation, and when this paper from this first both allocation fully when this stop device, this stop device can be by its deadweight this second highly moves to this first height certainly.

2. feed arrangement as claimed in claim 1 also includes a torque limit device, drives this stop device by this torque limit device and moves between this first and second height.

3. feed arrangement as claimed in claim 2, wherein, this stop device includes a cam and a baffle plate, and this cam drives by this torque limit device, and this baffle plate drives by this cam and moves between this first and second height.

4. feed arrangement as claimed in claim 3, wherein, this stop device is coupled between this first and second pick-off unit, and this stop device drives by this second pick-off unit, and this torque limit device is arranged between this second pick-off unit, this stop device.

5. feed arrangement as claimed in claim 4, also include a pedestal, and this second pick-off unit includes one first rolling element and one second rolling element, this pedestal has a first surface and a second surface, this first rolling element rotates along a third axle heart with rotary way, and this first rolling element is adjacent to this first surface, and this second rolling element rotates along one second axle center with rotary way, this second rolling element is external in this first rolling element, and this second rolling element is adjacent to this second surface, when this first rolling element when a first direction rotates, this paper is through moving to this first rolling element, between this first surface and via this first rolling element, formed one first friction force between this first surface and moving toward this second rolling element; When this paper move between this second rolling element, this second surface and move to via this paper carry out correcting between this second rolling element, this second surface after, this second rolling element rotates and this paper moves toward this second both allocation by formed one second friction force between this second rolling element, this second surface along a second direction.

6. feed arrangement as claimed in claim 5, wherein, the swinging arm device of this first pick-off unit for carrying out along one first axle center moving between a primary importance and the second place.

7. feed arrangement as claimed in claim 6, wherein, this first surface can move between one the 3rd position and one the 4th position, and this first surface when the 3rd position and this first rolling element adjoin each other.

8. feeding method, in order to a plurality of be fed object from one first both allocation move to one second both allocation, and above-mentioned feeding method comprises the following steps:

One device is provided, and it has a stop device;

9. feeding method as claimed in claim 8, this stop device to step and this step that is fed object of transmission of this second height that wherein rise carried out simultaneously.

10. feeding method as claimed in claim 8, this stop device to the step of this second height that wherein rises is to carry out before transmitting this step that is fed object.

11. feeding method as claimed in claim 8 wherein transmits this and is fed object second both the step and this stop device to the step of this first height that descends of allocation had been carried out simultaneously to this.

12. feeding method as claimed in claim 8, wherein transmit this be fed object to this second both the step of allocation carried out to the step of this first height at this stop device that descends.

13. feeding method as claimed in claim 8, wherein this device also comprises one first pick-off unit, and said method also comprises the following steps:

At this first pick-off unit that descends with when this is fed object and contact, rise this stop device to this second highly.

14. feeding method as claimed in claim 8, wherein this device also comprises one first pick-off unit, and said method also comprises the following steps:

, transmit this and be fed object with when being fed object at this first pick-off unit that rises to this second both allocation away from this.

15. feeding method as claimed in claim 8, wherein this device also comprises a friction lining, one first pick-off unit and one second pick-off unit, and be fed after object transmits by this first pick-off unit at this, this is fed object by between this second pick-off unit and this friction lining, once have only one to be fed object and can be transmitted thus, be fed object and this second pick-off unit much smaller than this maybe this is fed the friction force between object and this friction lining because this respectively is fed friction force between the object.