CN104709740B - Two-sided paper advance mechanism and two-sided feeder - Google Patents
Two-sided paper advance mechanism and two-sided feeder Download PDFInfo
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- CN104709740B CN104709740B CN201310674490.9A CN201310674490A CN104709740B CN 104709740 B CN104709740 B CN 104709740B CN 201310674490 A CN201310674490 A CN 201310674490A CN 104709740 B CN104709740 B CN 104709740B
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- roller shaft
- coupling component
- power
- damping transmission
- electromagnetic clutch
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Abstract
The present invention includes paper-feeding roller unit about a kind of two-sided paper advance mechanism and two-sided feeder, two-sided paper advance mechanism, has roller shaft, active roller and return idler, and roller shaft drives active roller to interlock return idler again and rotates for transport of sheets of paper；Damping transmission unit connects with power source and roller shaft respectively, and damping transmission unit is had damping transmission assembly and connect by bonding force and roller shaft, makes power source driving rolls axle rotate towards first direction；And electromagnetic clutch connects with power source and roller shaft respectively, electromagnetic clutch is driven by power source and rotates towards second direction, electromagnetic clutch and roller shaft connect or separate, the connecting forces of electromagnetic clutch and roller shaft connection, more than the bonding force of damping transmission assembly with roller shaft connection, can rotate towards second direction by driving rolls axle when electromagnetic clutch and roller shaft connect.The present invention varies without the direction of rotation of motor or power source and can be achieved with two-sided paper feed, and reverse rotation can be avoided to impact other parts.
Description
Technical field
The present invention relates to the paper advance mechanism of business machine, a kind of can support two-sided paper feed function
Two-sided paper advance mechanism.
Background technology
In order to support clerical various Yu complicated in modern chemical industry business community, business machine becomes
One of equipment that modern office room is indispensable, especially incorporate fax (Fax), scan (Scanning) and
The multifunction machine printing (Print) receives an acclaim most, faster with convenient filing paper in order to provide
Opening and process function, the business machine of a new generation is commonly equipped with automatic sheet feeder (Automatic Document
Feeder, ADF), multiple paper automatically can be continuously introduced into business machine, based on environmental protection and fully profit
By the purpose of paper, separately there is a kind of double treatment function (duplex scanning, duplex printing) supporting paper
Two-sided feeder is developed asks city.
The structure of known a kind of two-sided feeder is as it is shown in figure 1, wherein support duplex scanning merit with one
After illustrating as a example by the two-sided feeder of energy that its structure is such as.File paper to be scanned is placed in a paper feeding plate
10, by several paper-feed groups 11,11a, 11b and 11c by file paper via a paper feed path
P1 is delivered to scanning element 12, then moves to one via paper output path P2 and goes out paper roller group 13, by going out
The file paper that scanning is completed by paper roller group 13 is released；When file paper is carried out duplex scanning, complete
After the file paper becoming the first Surface scan is sent to out paper roller group 13, going out paper roller group 13 will be anti-
To rotation, the file paper completing the first Surface scan is delivered to paper feed path again via returning paper path P 3
P1, can carry out the scanning operation of another side.
The paper roller group 13 that goes out of existing two-sided feeder is to be driven by the single driving group of motor 14, because of
When this carries out back paper in duplex scanning operation, motor 14 needs to convert direction of rotation in order to drive original court
The paper roller group 13 that goes out rotated to paper delivery direction reversely rotates, in order to avoid motor 14 reversely rotates impact
Other parts, cause paper to pull or the mistake situation such as paper feed occurs, and also need to install unilateral bearing, planet additional
The structure such as gear or electromagnetic valve, therefore can increase manufacture and design cost.On the other hand, the rotation of motor 14
Turn the conversion in direction, motor operating steps also can be made to complicate, allow the chart drive speed of entirety slow down.
Summary of the invention
The present invention proposes a kind of two-sided paper advance mechanism, in order to solve the problems referred to above of existing two-sided feeder.
One embodiment of the invention structure include: a paper-feeding roller unit, have a roller shaft, at least one
Active roller and a return idler, roller shaft can drive active roller to interlock return idler again and rotate for transporting
Paper feeding is opened；One damping transmission unit connects with power source and roller shaft respectively, and damping transmission unit has one
Damping transmission assembly is connect by a bonding force and roller shaft, makes power source driving rolls axle towards a first party
To rotation；And one electromagnetic clutch connect with power source and roller shaft respectively, electromagnetic clutch is by power
Source drives and rotates towards a second direction, and second direction is contrary with first direction, and electromagnetic clutch can and roll
Wheel shaft connection or separate, electromagnetic clutch and roller shaft connection connecting forces more than damping transmission assembly with
The bonding force of roller shaft connection, can when electromagnetic clutch and roller shaft connect driving rolls axle towards second
Direction rotates.
In one embodiment of this invention, this damping transmission unit has one first coupling component and one first
Power input part, this first power input part is connected with this power source, this power source drive towards this
First direction rotates, and this first coupling component and this roller shaft connect, this damping transmission assembly with this first
Coupling component couples, and being interlocked by the bonding force between this damping transmission assembly and this first coupling component should
Roller shaft.
In one embodiment of this invention, this damping transmission assembly is a spring, this damping transmission assembly
A part of fixing with this first power input part is connected, this damping transmission assembly another partly with this
One coupling component coupling.
In one embodiment of this invention, this damping transmission assembly by friction mode or interference mode and is somebody's turn to do
First coupling component coupling.
In one embodiment of this invention, this electromagnetic clutch comprise one second coupling component and one second move
Power input block, the connection of this second coupling component and this roller shaft is used for interlocking this roller shaft and rotates, and this is the years old
Two power input parts are connected with this power source, this second power input part can by an electric signal control into
And combine with this second coupling component or separate, when this second power input part and this second attachment
When part combines, this roller shaft can be driven by this power source and rotate towards this second direction.
The present invention also comprises an automatic sheet feeder, for solving the problems referred to above of existing two-sided feeder.
Another aspect of the present invention proposes a kind of two-sided feeder, in order to solve existing two-sided feeder
The problems referred to above.
Automatic sheet feeder of the present invention one embodiment structure include: a power source, have a power part and
One steering mechanism, power part can provide the rotary power of single direction, system of steering mechanism and power part
Connect, power part drive and then produce the rotary motion contrary with the direction of rotation of power part；One
Paper-feeding roller unit, has a roller shaft, at least one active roller and a return idler, and roller shaft can carry
Dynamic active roller interlocks return idler again and rotates for transport of sheets of paper；One damping transmission unit, respectively with dynamic
The power part in power source and roller shaft connect, and damping transmission unit has a damping transmission assembly by a coupling
Make a concerted effort and roller shaft connection, make power part driving rolls axle rotate towards a first direction；And an electromagnetism
Clutch connects with the steering mechanism of power source and roller shaft respectively, and electromagnetic clutch is diverted mechanism and drives
Rotating towards a second direction, second direction is contrary with first direction, and electromagnetic clutch can join with roller shaft
Knot or separation, the connecting forces of electromagnetic clutch and roller shaft connection is more than damping transmission assembly and roller shaft
The bonding force of connection, can revolve towards second direction by driving rolls axle when electromagnetic clutch and roller shaft connect
Turn.
In one embodiment of this invention, this damping transmission unit has one first coupling component and one first
Power input part, this first power input part is connected with this clutch end of this power part, by
This power part drives and rotates towards this first direction, and this first coupling component and this roller shaft connect, this resistance
Buddhist nun's transmission component couples with this first coupling component, by this damping transmission assembly and this first coupling component
Between bonding force interlock this roller shaft.
In one embodiment of this invention, this damping transmission assembly is a spring, this damping transmission assembly
A part of fixing with this first power input part is connected, this damping transmission assembly another partly with this
One coupling component coupling.
In one embodiment of this invention, this damping transmission assembly by friction mode or interference mode and is somebody's turn to do
First coupling component coupling.
In one embodiment of this invention, this electromagnetic clutch comprise one second coupling component and one second move
Power input block, the connection of this second coupling component and this roller shaft is used for interlocking this roller shaft and rotates, and this is the years old
Two power input parts are connected with this steering mechanism, and this second power input part can be controlled by an electric signal
And then with this second coupling component combine or separate, when this second power input part and this second connection
When parts combine, this roller shaft can be driven by this steering mechanism and rotate towards this second direction.
The two-sided paper advance mechanism proposed by the present invention, just varies without the direction of rotation of motor or power source
The function of two-sided paper feed can be realized, owing to the direction of rotation of motor or power source is constant, can avoid motor or
Power source reversely rotates and impacts other parts, and simplifies the operating steps to motor or power source.
Other effects for the present invention and the detailed content of embodiment, be described as follows cooperation accompanying drawing.
Accompanying drawing explanation
Fig. 1, for the organigram of existing two-sided feeder.
Fig. 2, for an embodiment organigram of the two-sided paper advance mechanism of the present invention.
Fig. 3, for one embodiment of the invention structural map, the structure of display damping transmission unit.
Fig. 4, for an embodiment organigram of the two-sided feeder of the present invention.
Fig. 5 A, for the action schematic diagram of the present invention, motion when display electromagnetic clutch separates with roller shaft
Situation.
Fig. 5 B, for the direction of rotation schematic diagram of active roller and return idler in Fig. 5 A, during display normality
Paper is driven the situation of paper delivery.
Fig. 6 A, when connecting for another action schematic diagram of the present invention, display electromagnetic clutch and roller shaft
Case of motion.
Fig. 6 B, for the direction of rotation schematic diagram of active roller and return idler in Fig. 6 A, shows paper quilt
Drive back the situation of paper.
Wherein, description of reference numerals is as follows:
[prior art]
[present invention]
Detailed description of the invention
Refer to Fig. 2, an embodiment structure of the two-sided paper advance mechanism of the present invention, including: a paper-feeding roller
Unit 20, damping transmission unit 30 and an electromagnetic clutch 40, damping transmission unit 30 therein
All being connected with the power source of business machine with electromagnetic clutch 40, a kind of embodiment of power source is typically
Being made up of motor and transmission component (such as gear), in one embodiment of this invention, power source system carries
For the rotary power of single direction, and the damping transmission unit 30 of the present invention and electromagnetic clutch 40 are passive
Power source drives and makees rightabout rotary motion.
A kind of embodiment of paper-feeding roller unit 20 comprises roller shaft 21, an at least active roller 22
With a return idler 23, roller shaft 21 can drive active roller 22 to rotate, then be connected by active roller 22
Dynamic return idler 23 rotates, and utilizes active roller 22 and return idler 23 to be carried through paper between the two
?.
As it is shown on figure 3, a kind of embodiment of damping transmission unit 30 comprise one first coupling component 31,
One first power input part 32 and a damping transmission assembly 33, the first power input part 32 and affairs
The power source of machine connects, power source drive and rotate towards a first direction, the first coupling component 31
Connecting with roller shaft 21 (one of which embodiment is to adopt friction tight relation to be bound up), damping passes
Dynamic assembly 33 couples with the first coupling component 31, by damping transmission assembly 33 and the first coupling component
Bonding force between 31 interlocks roller shaft 21, makes the rotary motion energy driving rolls axle 21 of power source towards one
First direction rotates.A kind of embodiment of the first power input part 32 is that one has teeth portion 321
Gear assembly, the first power input part 32 and the first coupling component 31 combine in a coaxial relationship；
A kind of embodiment system of damping transmission assembly 33 uses spring, the some of damping transmission assembly 33 with
First power input part 32 is fixing to be connected, and another part of damping transmission assembly 33 can be by friction
Mode or interference mode (see Fig. 3) and the first coupling component 31 are coupled.
As in figure 2 it is shown, a kind of embodiment of electromagnetic clutch 40 comprises one second coupling component 41 He
One second power input part 42, the second coupling component 41 is used for interlocking roller shaft with roller shaft 21 connection
21 rotate, and the second power input part 42 is connected with power source, and the second power input part 42 can be by one
Electric signal controls and then combines with the second coupling component 41 or separate, when the second power input part 42
When combining with the second coupling component 41, roller shaft 21 can be driven by power source and rotate towards a second direction,
Second direction is contrary with aforesaid first direction.
In one embodiment of this invention, roller shaft 21 drives active roller 22 when rotating towards first direction
Paper is moved towards the paper delivery direction of business machine, it is however generally that paper delivery system is the setting of normality, changes speech
It, when normality business machine does not carries out duplex scanning or duplex printing, power source drives damping transmission
Unit 30 rotates, and damping transmission assembly 33 drives roller shaft 21 to rotate towards first direction by bonding force,
The paper out operation of normality, at the same time, the second power input part of electromagnetic clutch 40 can be performed
42 is the state (see Fig. 5 A and Fig. 5 B) separated with the second coupling component 41；When business machine to be carried out
When duplex scanning or duplex printing, business machine utilizes an electric signal to start electromagnetic clutch 40 and makes second
Power input part 42 is combined with the second coupling component 41, when the second power input part 42 and second
When knot part 41 combines, roller shaft 21 can be driven by power source and rotate towards second direction, due to electromagnetism
The connecting forces of clutch 40 and roller shaft 21 connection (is the second power input part 42 and the second connection
The adhesion of parts 41) (it is damping more than the bonding force of damping transmission unit 30 with roller shaft 21 connection
Transmission component 33 and the bonding force of the first coupling component 31 coupling), and owing to second direction is with aforesaid
First direction is contrary, therefore damping transmission assembly 33 can because of the torsional deflection of spring or open effect,
Make can producing between the first coupling component 31 and the first power input part 32 and rotate relative to reverse,
And then make the power source of business machine can pass through electromagnetic clutch 40 driving rolls axle 21 towards second direction
Rotate and produce back paper action (see Fig. 6 A and Fig. 6 B).
Refer to Fig. 4, for an embodiment structure of automatic sheet feeder of the present invention, be to incorporate aforesaid pair
Face paper advance mechanism and power source and constitute a kind of automatic sheet feeder, a kind of embodiment structure of power source includes:
One power part and a steering mechanism, steering mechanism is connected with power part, power part drive and then
Produce the rotary motion contrary with the direction of rotation of power part, wherein a kind of embodiment of power part
For motor 50, motor 50 rotates towards single direction, clutch end elder generation and the damping transmission list of motor 50
Unit 30 connects in order to directly to drive damping transmission unit 30 to rotate towards first direction, and the power of motor 50 is defeated
Go out end to be also connected with electromagnetic clutch 40 via steering mechanism, in order to drive electromagnetic clutch 40 court simultaneously
To second direction rotate, a kind of embodiment of steering mechanism is an idle gear 51, idle gear 51 between
Between clutch end and the electromagnetic clutch 40 of motor 50, the rotary power of motor 50 is via idle gear
51 drive electromagnetic clutch 40, and aforesaid second direction and first direction just can be made contrary.It is said that in general,
The output shaft of aforementioned motors 50 the most also can connect with a gear reduction, carries through gear reduction
The torsion of the clutch end of high motor 50, and this simple change application is for being familiar with this technology neck
For the tool usually intellectual of territory, from adding easily after understanding the embodiment that the present invention is above-mentioned
To realize.
Although the present invention is disclosed above through above-mentioned embodiment, so it is not limited to the present invention,
Any it is familiar with alike those skilled in the art, without departing from the spirit and scope of the invention, when making a little change
With retouching, therefore the scope of patent protection of the present invention must regard the defined person of claims appended by this specification as
Accurate.
Claims (10)
1. a two-sided paper advance mechanism, it is characterised in that can be driven by the power source rotated towards single direction
Perform two-sided paper feed, including:
One paper-feeding roller unit, comprises a roller shaft, at least one active roller and a return idler, this rolling
Wheel shaft can drive this active roller to interlock this return idler again and rotate for transport of sheets of paper；
One damping transmission unit, connects with this power source and this roller shaft respectively, and this damping transmission unit has
There is a damping transmission assembly to be connect by a bonding force and this roller shaft, make this power source drive this roller shaft
Rotate towards a first direction；And
One electromagnetic clutch, connects with this power source and this roller shaft respectively, and this electromagnetic clutch is moved by this
Power source drives and rotates towards a second direction, and this second direction is contrary with this first direction, this electromagnetic clutch
Can be with the connection of this roller shaft or separation, the connecting forces of this electromagnetic clutch and the connection of this roller shaft is more than
This bonding force that this damping transmission assembly connects with this roller shaft, can be at this electromagnetic clutch and this roller
This roller shaft is driven to rotate towards this second direction during axle connection.
Two-sided paper advance mechanism the most as claimed in claim 1, it is characterised in that this damping transmission unit has
There are one first coupling component and one first power input part, this first power input part and this power source
Connecting, this power source drive and rotate towards this first direction, this first coupling component and this roller shaft connect,
This damping transmission assembly couples with this first coupling component, by this damping transmission assembly and this first connection
Bonding force between parts interlocks this roller shaft.
Two-sided paper advance mechanism the most as claimed in claim 2, it is characterised in that this damping transmission assembly is
One spring, the some of this damping transmission assembly is fixing with this first power input part to be connected, this damping
Another part of transmission component and this first coupling component couple.
Two-sided paper advance mechanism the most as claimed in claim 3, it is characterised in that this damping transmission assembly leads to
Cross friction mode or interference mode and this first coupling component couples.
Two-sided paper advance mechanism the most as claimed in claim 1, it is characterised in that this electromagnetic clutch comprises
One second coupling component and one second power input part, this second coupling component is used with the connection of this roller shaft
Rotating in interlocking this roller shaft, this second power input part is connected with this power source, and this second power is defeated
Enter parts controlled by an electric signal and then combine with this second coupling component or separate, when this second power
When input block and this second coupling component combine, this roller shaft can be driven by this power source and towards this second
Direction rotates.
6. a two-sided feeder, it is characterised in that including:
One power source, has a power part and a steering mechanism, a clutch end of this power part
Can provide the rotary power of single direction, this steering mechanism is connected with this power part, by this power part
Drive and then produce and rotary motion that the direction of rotation of this power part is contrary；
One paper-feeding roller unit, has a roller shaft, at least one active roller and a return idler, this rolling
Wheel shaft can drive this active roller to interlock this return idler again and rotate for transport of sheets of paper；
One damping transmission unit, connects with this power part and this roller shaft, this damping transmission unit respectively
There is a damping transmission assembly connect by a bonding force and this roller shaft, make this power part drive this rolling
Wheel shaft rotates towards a first direction；And
One electromagnetic clutch, connects with this steering mechanism and this roller shaft respectively, and this electromagnetic clutch is by this
Steering mechanism drive towards one second direction rotate, this second direction is contrary with this first direction, this electromagnetism from
Clutch can be with the connection of this roller shaft or separation, this electromagnetic clutch and the connecting forces of this roller shaft connection
More than this bonding force of this damping transmission assembly and this roller shaft connection, can be at this electromagnetic clutch and should
This roller shaft is driven to rotate towards this second direction during roller shaft connection.
Two-sided feeder the most as claimed in claim 6, it is characterised in that this damping transmission unit has
One first coupling component and one first power input part, this first power input part and this power part
This clutch end connect, by this power part drive rotate towards this first direction, this first attachment
Part and this roller shaft connect, and this damping transmission assembly is coupled with this first coupling component, passed by this damping
Dynamic bonding force between assembly and this first coupling component interlocks this roller shaft.
Two-sided feeder the most as claimed in claim 7, it is characterised in that this damping transmission assembly is one
Spring, the some of this damping transmission assembly is fixing with this first power input part to be connected, and this damping passes
Another part and this first coupling component of dynamic assembly couple.
Two-sided feeder the most as claimed in claim 8, it is characterised in that this damping transmission assembly passes through
Friction mode or interference mode and this first coupling component couple.
Two-sided feeder the most as claimed in claim 6, it is characterised in that this electromagnetic clutch comprises
One second coupling component and one second power input part, this second coupling component is used with the connection of this roller shaft
Rotating in interlocking this roller shaft, this second power input part is connected with this steering mechanism, this second power
Input block by one electric signal control so that with this second coupling component combine or separate, when this second move
When power input block and this second coupling component combine, this roller shaft can be driven and towards this by this steering mechanism
Second direction rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674490.9A CN104709740B (en) | 2013-12-11 | 2013-12-11 | Two-sided paper advance mechanism and two-sided feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674490.9A CN104709740B (en) | 2013-12-11 | 2013-12-11 | Two-sided paper advance mechanism and two-sided feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104709740A CN104709740A (en) | 2015-06-17 |
| CN104709740B true CN104709740B (en) | 2016-08-24 |
Family
ID=53409560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310674490.9A Active CN104709740B (en) | 2013-12-11 | 2013-12-11 | Two-sided paper advance mechanism and two-sided feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104709740B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200734181A (en) * | 2006-03-07 | 2007-09-16 | Avision Inc | Simplex and duplex continuous automatic document feeder |
| JP2007329638A (en) * | 2006-06-07 | 2007-12-20 | Matsushita Electric Ind Co Ltd | Read carriage lock mechanism and image reader equipped with same |
| TW200803456A (en) * | 2006-06-02 | 2008-01-01 | Primax Electronics Ltd | Duplex scanning apparatus |
| TW200817197A (en) * | 2006-10-04 | 2008-04-16 | Asia Optical Co Inc | Dual-surface paper feeding device |
| CN201411257Y (en) * | 2009-03-27 | 2010-02-24 | 虹光精密工业（苏州）有限公司 | Automatic paper feeding equipment with clutch |
-
2013
- 2013-12-11 CN CN201310674490.9A patent/CN104709740B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200734181A (en) * | 2006-03-07 | 2007-09-16 | Avision Inc | Simplex and duplex continuous automatic document feeder |
| TW200803456A (en) * | 2006-06-02 | 2008-01-01 | Primax Electronics Ltd | Duplex scanning apparatus |
| JP2007329638A (en) * | 2006-06-07 | 2007-12-20 | Matsushita Electric Ind Co Ltd | Read carriage lock mechanism and image reader equipped with same |
| TW200817197A (en) * | 2006-10-04 | 2008-04-16 | Asia Optical Co Inc | Dual-surface paper feeding device |
| CN201411257Y (en) * | 2009-03-27 | 2010-02-24 | 虹光精密工业（苏州）有限公司 | Automatic paper feeding equipment with clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104709740A (en) | 2015-06-17 |
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