CN104925548B - Device for image forming and paper-feeding mechanism - Google Patents
Device for image forming and paper-feeding mechanism Download PDFInfo
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- CN104925548B CN104925548B CN201410099994.7A CN201410099994A CN104925548B CN 104925548 B CN104925548 B CN 104925548B CN 201410099994 A CN201410099994 A CN 201410099994A CN 104925548 B CN104925548 B CN 104925548B
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Abstract
A kind of device for image forming and paper-feeding mechanism, wherein paper-feeding mechanism include：Paper feeding cassette, be connected in the paper feeding cassette, liftable paper supply tray；Tilt adjusting mechanism below paper feed roller, the gradient for adjusting the part surface to be printed being positioned on the paper supply tray, with first state and the second state：In first state, the position of the paper supply tray sets low than predetermined bits, paper supply is at least carried out by the supporting part and the paper feed roller collective effect, in second state, the position of the paper supply tray is flushed or higher than assigned position with assigned position, and paper supply is carried out by the paper supply tray and the paper feed roller collective effect.The height on part surface to be printed is adjusted using tilt adjusting mechanism, and the tilt adjusting mechanism is not acted in negligible amounts, it is ensured that the correctness of paper supply.
Description
Technical field
The present invention relates to print field, and in particular to a kind of device for image forming and paper-feeding mechanism.
Background technology
Printer as various computers one of main output equipment, with the development of computer technology and increasingly complete
Beautiful user's request and obtain large development.Part to be printed also expands to envelope, card etc. from traditional common paper.
All having paper feeding page by page in printer is used for the paper-feeding mechanism for printing, (prior art one) as shown in Figure 1, paper supplying machine
Structure generally comprises paper feeding cassette 10, the paper supply tray 20 being rotationally connected with the paper feeding cassette 10, and during printing, paper supply tray 20 passes through
Rotation is lifted up, and now, the pressure of paper feed roller 30 positioned at the top of paper supply tray 20 is located at the part surface to be printed, paper feed roller 30
Rolling friction is produced with part surface to be printed during rotation, thus individual part to be printed is extracted and is sent out along paper supply direction X
Printing.
When part to be printed is common paper in uniform thickness, as shown in Fig. 2 common quires 41 is perpendicular to paper supply direction X two
Side it is highly consistent, paper supply is normal；When part to be printed is envelope, because envelope is more than it in part in the thickness of sealing part
Thickness, then can be potentially encountered following problem, as shown in Figure 3：Perpendicular to the both sides of paper supply direction X, the both sides of envelope quires 42
Because uneven thickness formed difference in height, during printing paper feed roller 30 be applied to the surface of envelope quires 42 pressure it is uneven, be extracted
Individual envelope easily produces deflection, deviation occurs so as to cause to be printed upon the pattern position on envelope, or cause individual envelope
Can not smoothly be sent out and paperboard is occurred.
Regarding to the issue above, Japanese documentation JP10-35901A (prior art two) proposes another paper-feeding mechanism,
As shown in Figure 4 (Fig. 4 shows schematically to the scheme in prior art two), the paper-feeding mechanism increases on the basis of prior art one
If posterior limiting 21, the elastic layer 21 is connected to the surface of paper supply tray 20 and for supporting part to be printed along paper supply direction X's
There is the elastic deformation of respective degrees by compression under the effect of the pressure in front portion, each position of elastic layer 21, and by bullet
Property layer 21 elastic deformation adjust the height on part surface to be printed.When part to be printed is envelope quires 42, there is no elastic layer
When 21, the state of envelope quires 42 is as shown in bold portion：Height of the envelope quires 42 perpendicular to paper supply direction X both sides differs
Cause；During elasticity layer 21, the state of envelope quires 42 is as is shown in phantom lines：Perpendicular to paper supply direction X both sides, elastic layer 21 exists
There is elastic deformation in the bottom of envelope quires 42, and it is used to supporting the deflection of the thicker side of envelope quires 42 be used for more than it
The deflection of the relatively thin side of support envelope quires 42, thus, the relatively thin side of envelope quires 42 is lifted relative to thicker side, from
And it is finally consistent to reach its apparent height.
The defect of such scheme is：In order to ensure the normal paper feeding of paper-feeding mechanism, during paper feeding paper feed roller 30 with it is to be printed
Pressure between part surface is needed to be maintained at a scope set in advance, and elastic layer 21 is contacted with part to be printed all the time, when
During the negligible amounts of part to be printed, the pressure in print procedure between paper feed roller 30 and part to be printed is smaller, and one therein
Partial pressure is absorbed by elastic layer 21 again, therefore paper feed roller 30 is likely less than normal paper feeding and needs with the actual pressure on part surface to be printed
The minimum pressure wanted, causes paper feed roller 30 smoothly can not extract individual paper.If ensureing that individual paper can be suitable
Profit is extracted, then need to increase the pressure that paper feed roller 30 puts on part surface to be printed, then be likely to result in multiple paper during printing
Extracted simultaneously；Further, when pressure is excessive, part to be printed will be recessed with the surface of the contact portion of paper feed roller 30,
There is warpage relative to the part in remainder, even if causing to be extracted individual paper, but can not due to paper surface warp
Smoothly enter printing mechanism, cause paperboard.As can be seen here, the technical scheme is susceptible to supply in part negligible amounts to be printed
Paper mistake.
Japanese documentation JP2012-101929A (prior art three) proposes another paper-feeding mechanism, as shown in Figure 5
(Fig. 5 shows schematically to the scheme in prior art three), the paper-feeding mechanism be additionally arranged on the basis of prior art one for
The Lift Part 22 of part apparent height to be printed is adjusted, Lift Part 22 has multiple and is respectively arranged at the bottom of paper supply tray 20
Perpendicular to paper supply direction X both sides, the height for adjusting the both sides of paper supply tray 20.When part to be printed is common paper in uniform thickness
When, Lift Part 22 is not acted on；When envelope quires 42 of the part to be printed for uneven thickness, Lift Part 22 drives paper supply tray
20 corresponding both sides are raised and lowered, until the apparent height of envelope quires 42 is consistent.The defect of this paper-feeding mechanism is：Need
The difference in height for treating printout surface using sensor is detected, and is joined come the lifting for controlling Lift Part according to testing result
Number, complex structure, and it is relatively costly.
The content of the invention
The problem that the present invention is solved is to provide a kind of paper-feeding mechanism that can be printed envelope, and the paper-feeding mechanism can be avoided
There is paper supply mistake, and simple structure, low cost during the negligible amounts of part to be printed.
To solve the above problems, the present invention provides a kind of paper-feeding mechanism to be included：
Paper feeding cassette；
Paper supply tray, is connected in the paper feeding cassette, for placing part to be printed, and the paper supply tray can be relative to institute
State the bottom elevation of paper feeding cassette；
Tilt adjusting mechanism, positioned at matched with the paper feeding cassette paper feed roller lower section and be connected in the paper feeding cassette, institute
State tilt adjusting mechanism for adjust be positioned over the gradient on part surface to be printed on the paper supply tray；
The tilt adjusting mechanism has the supporting part for being supported in part bottom to be printed；
The tilt adjusting mechanism has first state and the second state；
When the tilt adjusting mechanism is in the first state, the position of the paper supply tray sets low than predetermined bits, extremely
It is few that paper supply is carried out by the supporting part and the paper feed roller collective effect；
When the tilt adjusting mechanism is in the second state, the position of the paper supply tray flushes or than rule with assigned position
Positioning puts height, and paper supply is carried out by the paper supply tray and the paper feed roller collective effect.
Optionally, when the tilt adjusting mechanism is in the first state, the supporting part is higher than the paper supply tray
Surface；
The tilt adjusting mechanism be in second state when, the supporting part less than the paper supply tray surface or with
The paper supply tray surface flushes.
Optionally, when the tilt adjusting mechanism is in the first state, the supporting part can be in part to be printed
The height higher than the paper supply tray is automatically adjusted under pressure effect, to adjust the gradient on the part surface to be printed.
Optionally, the supporting part at least two, respectively positioned at the part bottom to be printed perpendicular to paper supply direction
Both sides.
Optionally, the supporting part be one and positioned at the printed paper item bottom perpendicular to paper supply direction side.
Optionally, the tilt adjusting mechanism also includes the elastic portion being located between the supporting part and the paper feeding cassette
Material, one end of the elastic portion material is connected to the supporting part, and the other end is connected to the bottom of the paper feeding cassette.
Optionally, the elastic portion material is spring.
Optionally, the tilt adjusting mechanism and the paper supply tray are interlocked；
The tilt adjusting mechanism also includes the connection member being connected between the supporting part and the paper feeding cassette, described
Connection member can change the height that the supporting part stretches out paper supply tray according to the lifting of the paper supply tray.
Optionally, the tilt adjusting mechanism is located at the paper supply tray bottom, the paper supply tray and the supporting part
Through hole is formed with relative position；
In the first state, the supporting part is protruded upward from the through hole on the paper supply tray surface.
The present invention also provides a kind of device for image forming, and it includes the paper-feeding mechanism described in any of the above-described.
Compared with prior art, technical scheme has advantages below：
The height on part surface to be printed is adjusted using tilt adjusting mechanism, when part negligible amounts to be printed, is inclined and is adjusted
Whole mechanism is in the second state, and paper supply is carried out by the paper supply tray and the paper feed roller collective effect；When number of packages amount to be printed
When more, tilt adjusting mechanism is in first state, is carried out by the paper supply tray, supporting part and the paper feed roller collective effect
Paper supply, it is ensured that the correctness of paper supply.
Further, in a first state, supporting part protrude upward and higher than paper supply tray surface, be supported in part to be printed
Bottom simultaneously adjusts the gradient on part surface to be printed with this；In the second state, supporting part is not higher than paper supply tray surface, i.e., not
Paper supply tray surface is stretched out, printout surface is treated and is not played regulatory role, that is to say, that the tilt adjusting mechanism is in negligible amounts
When do not act.
Brief description of the drawings
Fig. 1 is the side structure schematic view of paper-feeding mechanism in prior art one；
Fig. 2 be in prior art one paper-feeding mechanism along paper supply direction sectional view, its part to be printed is common paper；
Fig. 3 be in prior art one paper-feeding mechanism along paper supply direction sectional view, its part to be printed is envelope；
Fig. 4 is the dimensional structure diagram of paper-feeding mechanism in prior art two；
Fig. 5 is three kinds of overlooking the structure diagrams of paper-feeding mechanism of prior art；
Fig. 6 is the dimensional structure diagram of paper-feeding mechanism in the embodiment of the present invention one；
Fig. 7 be in the embodiment of the present invention one paper-feeding mechanism along paper supply direction X schematic cross-section；
Fig. 8 is the schematic cross-section along paper supply direction X when paper-feeding mechanism is in first state in the embodiment of the present invention one；
Fig. 9 is the schematic cross-section along paper supply direction X when paper-feeding mechanism is in the second state in the embodiment of the present invention one；
Figure 10 is illustrated perpendicular to the section of paper supply direction X when paper-feeding mechanism is in first state in the embodiment of the present invention one
Figure, now thickness of the part to be printed perpendicular to paper feeding direction X both sides is uniform；
Figure 11 is illustrated perpendicular to the section of paper supply direction X when paper-feeding mechanism is in first state in the embodiment of the present invention one
Figure, now part to be printed is perpendicular to the in uneven thickness of paper feeding direction X both sides；
Figure 12 is the partial enlarged drawing of tilt adjusting mechanism in the embodiment of the present invention one；
Figure 13 is the schematic perspective view of attachment structure between tilt adjusting mechanism and supporting plate in the embodiment of the present invention one；
Figure 14 is effect diagram when tilt adjusting mechanism stretches out paper supply tray surface in the embodiment of the present invention one；
Figure 15 is dimensional structure diagram when paper-feeding mechanism is in first state in the embodiment of the present invention two；
Figure 16 is dimensional structure diagram when paper-feeding mechanism is in the second state in the embodiment of the present invention two；
Figure 17 be in the embodiment of the present invention two tilt adjusting mechanism along paper supply direction X sections structural representation；
Figure 18 is the schematic cross-section along paper supply direction X when paper-feeding mechanism is in the second state in the embodiment of the present invention two,
Now tilt adjusting mechanism is in state when not being stressed；
Figure 19 is the schematic cross-section along paper supply direction X when paper-feeding mechanism is in first state in the embodiment of the present invention two,
Now tilt adjusting mechanism is in state when bearing pressure；
Figure 20 be in the embodiment of the present invention three paper-feeding mechanism along paper supply direction X schematic cross-section.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Embodiment one
The present embodiment provides a kind of device for image forming, has a paper-feeding mechanism, reference picture 6-7 in the device for image forming
Shown, this paper-feeding mechanism includes：
Paper feeding cassette 1；
Paper supply tray 100, is connected in the paper feeding cassette 1, for placing part to be printed, and the paper supply tray 100 can be with
Bottom relative to the paper feeding cassette 1 is lifted by rotational motion；
Supporting plate 300, the supporting plate 300 is connected between the bottom of the paper supply tray 100 and the paper feeding cassette 1, is used for
The paper supply tray 100 is supported, and can be rotated with the rotation of the paper supply tray 100；
Tilt adjusting mechanism 200, positioned at the lower section of paper feed roller 2 matched with the paper feeding cassette 1 and is connected to the paper feeding cassette
In 1, the tilt adjusting mechanism 200 is used to adjust the gradient on the part surface to be printed being positioned on the paper supply tray 100.
With continued reference to Fig. 6-7 and combine Fig. 8-9 shown in, the tilt adjusting mechanism 200 have be supported in part bottom to be printed
The supporting part 210 in portion；
The supporting part 210 of the tilt adjusting mechanism 200 has first state (Fig. 8) and the second state (Fig. 9)；
When the supporting part 210 of the tilt adjusting mechanism 200 is in the first state, the position of the paper supply tray 100
Put and set low than predetermined bits, paper supply is at least carried out by the supporting part 210 and the collective effect of the paper feed roller 2；
When the supporting part 210 of the tilt adjusting mechanism 200 is in the second state, the position ratio of the paper supply tray 100
Assigned position is high, and paper supply is carried out by the paper supply tray 100 and the collective effect of the paper feed roller 2.
Assigned position said herein, the supporting part 210 and the surface of paper supply tray 100 for referring to tilt adjusting mechanism 200 is put down
The location of Qi Shi, described paper supply tray 100.
In the present embodiment, paper-feeding mechanism work, carries a number of part to be printed on paper supply tray 100：
When the part to be printed that paper supply tray 100 is carried is not up to the quantity of regulation, the supporting part of tilt adjusting mechanism 200
210 lower sections for being located at paper supply tray 100, reference picture 9：Now the tilt adjusting mechanism 200 is in second state, described
Supporting part 210 is less than the paper supply tray surface 100；
When the quantity of part to be printed meets or exceeds the quantity of regulation, supporting part 210 is located at the upper of paper supply tray 100
Side, now referring to Fig. 8：Now the tilt adjusting mechanism 200 is in the first state, and the supporting part 210 is higher than described
The surface of paper supply tray 100.
It can thus be seen that the tilt adjusting mechanism 200 in the present embodiment only reaches certain value in the quantity of part to be printed
When, just play a role, that is, withstand part bottom to be printed and be lifted up, paper supply is participated in together with paper feed roller 2 and is acted, and
In the case of other, tilt adjusting mechanism 200 is not involved in paper supply.Such arrangement, in part negligible amounts to be printed, will not
The pressure between part to be printed and paper feed roller 2 is influenceed, so as to ensure that the correctness of paper supply.
In the present embodiment, shown in reference picture 10-11, the supporting part 210 has two, respectively positioned at the part to be printed
(dotted portion) bottom is perpendicular to the both sides of paper supply direction X (in Figure 10-11, paper supply direction X is inside perpendicular to drawing paper).
In other embodiments, supporting part 210 can also be arranged to more than two, and be respectively arranged at part bottom to be printed
Portion is perpendicular to the both sides of paper supply direction X.
With continued reference to Figure 10-11, wherein, two supporting parts 210 are respectively supported at part to be printed perpendicular to paper supply direction X's
Both sides：
Figure 10 is the branch of tilt adjusting mechanism 200 when part to be printed is common paper (dotted portion) in uniform thickness
The state on the surface of paper supply tray 100 is stretched out in support part 210 in a first state；
Figure 11 is the tilt adjustments machine when part to be printed is along perpendicular to paper feeding direction X thickness of two sides uneven envelope
The state for stretching out the surface of paper supply tray 100 in a first state of structure 200, such as placed certain amount on paper supply tray 100
Envelope (dotted portion), it is apparent that in the thicker side of part thickness to be printed, supporting part 210 stretches out paper supply tray
The height on surface is smaller.
With reference to Figure 10-11, the principle concrete analysis of part surface slope to be printed is adjusted to tilt adjusting mechanism 200
It is as follows：
In the present embodiment, the supporting part 210 to tilt adjusting mechanism 200 can be when being acted on by the pressure of part to be printed
Move down and automatically adjusted according to the size of pressure the amount of movement for moving down.
When part to be printed is uniform perpendicular to the thickness of two sides of paper supply direction X, then two amount of movement phases of supporting part 210
Deng；When part to be printed is uneven perpendicular to the thickness of two sides of paper supply direction X, such as shown in Figure 11, part bb sides to be printed
More than the thickness of aa sides, then be supported in that the supporting part 210 of the pressure ratio aa sides that the supporting part 210 of bb sides is subject to is subject to presses thickness
Power is big, and accordingly, the amount of movement of the amount of movement downward under pressure support part 210 more collateral than aa of the collateral support parts 210 of bb is big,
Thus, part aa side surfaces to be printed are lifted relative to bb side surfaces, and the height that its both side surface is adjusted so as to reach is adjusted
The effect of part surface slope to be printed.
That is, in the present embodiment, the supporting part 210 can be automatically adjusted under the effect of the pressure of part to be printed
Higher than the height of the paper supply tray 100, to adjust the gradient on the part surface to be printed.
With continued reference to Figure 12-13 and with reference to Fig. 8-9, in this embodiment, the tilt adjusting mechanism 200 also includes being connected to
Connection member between the supporting part 210 and the paper feeding cassette 1, the connection member can be according to the paper supply tray 100
Lifting change the height of the supporting part 210 higher than paper supply tray 100.
Further, in the present embodiment, reference picture 8-9 and combination Figure 12-13, the supporting part 210 have for branch
Support the first end a and the second end b relative to the first end a of part to be printed, one end of the connection member is connected to described
Second end b of supporting part 210, the other end is connected to the paper feeding cassette 1, and the supporting part 210 is adjusted by the connection member
Height of its first end a higher than the paper supply tray 100.
Connection member in the present embodiment is pivoted lever-torsion spring structure, wherein, the connection member includes the first pivoted lever
221st, the second pivoted lever 222 and torsion spring 223：
One end of first pivoted lever 221 is articulated with the second end b of the supporting part 210 by the first jointed shaft 226,
The other end is articulated with the second pivoted lever 222 by the second jointed shaft 227；
The first gyroaxis 224 is formed between the two ends of first pivoted lever 221, first gyroaxis 224 is connected
In the chute 229 of the bottom relevant position of the paper feeding cassette 1, first pivoted lever 221 is revolution with the first gyroaxis 224
Center；
The torsion spring 223 is located between first pivoted lever 221 and the supporting part 210 and is sheathed on first hinge
Spindle 224, a torsion end of the torsion spring 223 is connected to the supporting part 210, and another torsion end is connected to described first
Pivoted lever 221；
The second gyroaxis 225, second gyroaxis 255 and confession are formed between the two ends of second pivoted lever 222
Connected mode between carton 1 is identical with the first gyroaxis 224, is connected to the chute of the bottom relevant position of the paper feeding cassette 1
Middle (not shown), second pivoted lever 222 passes through the 3rd jointed shaft relative to the other end of first pivoted lever 221
228 are articulated with the supporting plate 300 perpendicular to the side of paper supply direction X.Because supporting plate 300 is and the synchronous axial system of paper supply tray 100
, then under this arrangement, the tilt adjusting mechanism 200 and the paper supply tray 100 are interlocked；
Wherein, first gyroaxis 224 and second gyroaxis 225 can be respectively in corresponding chute along paper supply sides
Moved to X.
Wherein, first jointed shaft 224, the second jointed shaft 225 be each perpendicular to paper supply direction X, i.e. supporting part 210 and
The rotational plane of each part is parallel with the rotational plane of paper supply tray 100 in connection member.
In the present embodiment, when tilt adjusting mechanism 200 is interlocked with paper supply tray 100, operation principle is as follows：
As shown in figure 12, when paper supply tray 100 does not carry the quantity not up to certain amount of part to be printed or part to be printed
When, tilt adjusting mechanism 200 is in the second state, and supporting part 210 do not stretch out the surface of paper supply tray 100, now supporting part 210 with
The angle of vertical direction is smaller, and the first end a of supporting part 210 is in a position higher；
When part to be printed causes that its pressure being applied on paper supply tray 100 reaches certain value for certain amount, supply
Paper pallet 100 part to be printed pressure effect under downwards pivot movement and cause supporting part 210 stretch out the table of paper supply tray 100
Face, tilt adjusting mechanism 200 be in first state, now the first end a of supporting part 210 be subject to part to be printed pressure, and
Rotated down counterclockwise under the component effect vertically of above-mentioned pressure, and drive the first pivoted lever 221 and the second pivoted lever
222 rotate counterclockwise；
Simultaneously as one end of the second pivoted lever 222 is connected with supporting plate 300, be can see by analysis：Supporting plate 300 with
Paper supply tray 100 to be moved down by pivoting action, drive the second pivoted lever 222 to rotate counterclockwise；Then, drive first time
Bull stick 221 is rotated counterclockwise, and thus, the first end a of supporting part 210 is rotated down counterclockwise, supporting part 210 and vertical direction
Angle becomes big, i.e., torsion spring 223 becomes big with the angle of vertical direction, therefore is easier to the inverse time in the pressure by vertical direction
Pin direction rotates so that the regulation of whole tilt adjusting mechanism 200 is more smooth.
As can be seen here, supporting part 210 can be acted on the induced effect of supporting plate 300 and the pressure of part to be printed simultaneously under
Rotate down, under this arrangement, tilt adjusting mechanism 200 can not only automatically adjust supporting part 210 and stretch out paper supply support
The height on the surface of disk 100, and number of packages amount to be printed is more, tilt adjusting mechanism 200 is easier under pressure to moving down
It is dynamic, increased the operability of whole device.
On the other hand, the tilt adjusting mechanism 200 of the present embodiment not only ensure that using the structure of pivoted lever-torsion spring
The high accuracy of adjustment, and with the simpler advantage of structure for prior art three.
In other embodiments, the second pivoted lever 222 can be according to the size of supporting plate 300 with the articulated position of supporting plate 300
And the size of part to be printed determines, the position in the present embodiment is not limited solely to.
In other embodiments, the second pivoted lever 222 can not also be hinged with supporting plate 300, but directly be articulated with paper supply
On box 1, the angle of supporting part 210 and vertical direction is now if desired adjusted, as long as then increasing by one upper and lower to connection member
The driving force in direction.
Further, in the present embodiment, reference picture 14, the tilt adjusting mechanism 200 is located at the bottom of the paper supply tray 100
Portion, the paper supply tray 100 is formed with through hole 110 on the position relative with the supporting part 210；
In the first state, the supporting part 210 is stretched upwards from the through hole 110 on the surface of the paper supply tray 100
Go out.
In other embodiments, the supporting part 210 may be located on the paper supply tray 100 perpendicular to paper supply direction X
Side, now in the first state, the supporting part 210 of tilt adjusting mechanism 200 is from the paper supply tray 100
Side protrudes upward, without setting through hole on paper supply tray 100.
In addition, it is different according to the mode that part to be printed is placed, such as when part to be printed is along the front and rear of paper supply direction X
When the thickness at two ends is different, the supporting part 210 may be located on the paper supply tray 100 along paper supply direction X front and rears
Two ends.That is the specific arrangement of supporting part 210 can be according to the size of paper supply tray 100 and the chi of part to be printed
The comprehensively determination of very little and modes of emplacement, is not limited solely to aforesaid way.
Further, in the present embodiment, reference picture 7-9 and combine Figure 12-13 shown in, supporting plate 300 is connected by supporting plate axle 310
Paper feeding cassette 1 is connected to, supporting plate 300 is fixedly connected on supporting plate axle 310, and supporting plate axle 310 is connected with driver part (not shown),
Driver part applies driving force to supporting plate axle 310 orders about its rotation, so as to drive the rotation of supporting plate 300.
Embodiment two
The present embodiment is that in this embodiment, tilt adjusting mechanism 200 is in first state with the difference of embodiment one
When, it is collective effect when paper supply is acted between each part is carried out：Below paper feed roller 2, at least with the paper feed roller 2 and support
Portion 210 clamps part to be printed, and clamped part to be printed carries out paper supply by paper feed roller 2 along paper supply direction X.
Specifically, reference picture 15-16, supporting part 210 is one, when tilt adjusting mechanism 200 is in first state, is being entered
Row paper supply act when each part between collective effect be：Below paper feed roller 2, with the paper feed roller 2, supporting part 210 and paper supply
Pallet 100 clamps part to be printed, and clamped part to be printed carries out paper supply by paper feed roller 2 along paper supply direction X；
When tilt adjusting mechanism 200 is in the second state, it is collective effect when paper supply is acted between each part is carried out：
Below paper feed roller 2, part to be printed at least is clamped with the paper feed roller 2 and paper supply tray 100, clamped part to be printed is by supplying
Paper bowl 2 carries out paper supply to paper supply direction X.In the present embodiment, reference picture 15, the tilt adjusting mechanism 200 is in the second shape
During state, the position of the paper supply tray 100 flushes with assigned position, is made jointly by the paper supply tray 100 and the paper feed roller 2
With carrying out paper supply, meanwhile, the supporting part 210 of tilt adjusting mechanism 200 is also supported in the bottom of part to be printed.
In other embodiments, it is also possible to change the position of supporting part 210, for example when part to be printed is along paper supply side
To X rear and front end uneven thickness when, it is also possible to by supporting part 210 be arranged at paper supply tray 100 along paper supply direction X front portion or
Rear portion, now, when tilt adjusting mechanism 200 is in first state, is carrying out collective effect when paper supply is acted between each part
It is then that paper supply is carried out by supporting part 210 and the collective effect of paper feed roller 2.
Reference picture 15-16, in the present embodiment, has regulation plate 400 in paper feeding cassette 1, the regulation plate 400 is located at described
Paper supply tray 100 perpendicular to paper supply direction X one or both sides end and be vertically connected at the bottom of the paper feeding cassette 1.It is described
Supporting part 210 is for one and positioned at the printed paper item bottom perpendicular to the side of paper supply direction X, specifically, supporting part
210 are located between paper supply tray 100 and corresponding regulation plate 400.
Supporting part 210 is arranged in paper supply tray 100 perpendicular to the side of paper supply direction X, in the first state, reference
Figure 16, the supporting part 210 is protruded upward from the side of the paper supply tray 100, for supporting part to be printed perpendicular to paper supply
The less side of thickness in the X both sides of direction.
Reference picture 17, the connection member of the tilt adjusting mechanism 200 is cam 230, the cam 230 convex surface facing
The supporting part 210 and contacted with the bottom of the supporting part 210.
The cam 230 is connected to supporting plate axle 310 along the front portion of paper supply direction X, and drives it to rotate by supporting plate axle 310,
Now cam 230 and the synchronous axial system of the supporting plate 300, thus, the cam 230 is interlocked with the paper supply tray 100.
Wherein, supporting part 210 has the supporting surface 211 parallel to the surface of the paper supply tray 100, and supporting surface 211 is on edge
There is certain length on the X of paper supply direction；With the movement locus on the regulation plate 400 of the corresponding side of supporting part 210 along supporting part 210
Chute 410 is offered, supporting part 210 is fixed on sliding block 420, and follows sliding block 420 to be slided in chute 410.
The operation principle of tilt adjusting mechanism 200 is as follows in the present embodiment：
Reference picture 18, when paper supply tray 100 does not carry part to be printed, cam 230 is unanimously located at supporting plate 300 and rotates most
High position, and it is in a certain angle with the bottom of paper feeding cassette 1, now supporting part 210 is relatively low in convex surface with the contact point of cam 230
Position, the supporting surface 211 of supporting part 210 and the flush of paper supply tray 100, now tilt adjusting mechanism 200 be in the
Two-state.
Reference picture 19, when the part to be printed carried on paper supply tray 100 reaches certain amount, paper supply tray 100 is in pressure
Moved down in the presence of power, drive supporting plate 300 to rotate down, cam 230 and the synchronous axial system of supporting plate 300, supporting part 210 with it is convex
Contact point between wheel 230 is moved along convex surface to position higher so that supporting part 210 stretches out the surface of paper supply tray 100, from
And raise the corresponding site of part to be printed, now tilt adjusting mechanism 200 is in first state.
Embodiment three
The present embodiment is with the difference of embodiment one, in the present embodiment, reference picture 20, the tilt adjusting mechanism
In 200, the connection member being connected with supporting part 210 is elastic portion material 240, and the elastic portion material 240 is located at the supporting part 210
Between the paper feeding cassette, one end is connected to the supporting part 210, and the other end is connected to the bottom of the paper feeding cassette；The branch
Support part 210 adjusts the height that the paper supply tray is stretched out in regulation by the elastic portion material 240.
It is similar with the operation principle in embodiment one, wait to beat when the surface of paper supply tray 100 does not carry part to be printed or carries
When the quantity of printed document is not up to specified quantity, tilt adjusting mechanism 200 is in the second state, the not higher than surface of paper supply tray 100,
Now elastic portion material 240 is in original state；
When the quantity of part to be printed that paper supply tray 100 is carried reaches specified quantity, tilt adjusting mechanism 200 is in the
One state and be higher than the surface of paper supply tray 100, now supporting part 210 be under pressure and act on and drive elastic portion material 240 to be pressed downward
Contracting.
When the thickness of part to be printed is uniform, the decrement of two-side elastic portion material 240 is identical；And work as the thickness of part to be printed
When uneven, the decrement of the elastic portion material 240 of the thicker side of thickness is more than thinner thickness side, thus part thickness to be printed compared with
Thin side is lifted up relative to thicker side, thus adjusts the gradient on part surface to be printed.
In the present embodiment, the elastic portion material 240 is spring.
In other embodiments, elastic portion material 240 can also be other materials, if can realize under pressure by
Compress and restorable material is the purpose for being capable of achieving the present embodiment after pressure is discharged.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this
In the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (10)
1. a kind of paper-feeding mechanism, it is characterised in that including：
Paper feeding cassette；
Paper supply tray, is connected in the paper feeding cassette, for placing part to be printed, and the paper supply tray can be relative to the confession
The bottom elevation of carton；
Tilt adjusting mechanism, positioned at matched with the paper feeding cassette paper feed roller lower section and be connected in the paper feeding cassette, it is described to incline
Skew adjustment mechanism is used to adjust the gradient on the part surface to be printed being positioned on the paper supply tray；
The tilt adjusting mechanism has the supporting part for being supported in part bottom to be printed；
The tilt adjusting mechanism has first state and the second state；
The tilt adjusting mechanism be in the first state when, the position of the paper supply tray sets low than predetermined bits, at least by
The supporting part and the paper feed roller collective effect carry out paper supply；
When the tilt adjusting mechanism is in second state, the position of the paper supply tray flushes or than rule with assigned position
Positioning puts height, and paper supply is carried out by the paper supply tray and the paper feed roller collective effect.
2. paper-feeding mechanism as claimed in claim 1, it is characterised in that the tilt adjusting mechanism is in the first state
When, the supporting part is higher than the paper supply tray surface；
The tilt adjusting mechanism be in second state when, the supporting part less than the paper supply tray surface or with it is described
Paper supply tray surface flushes.
3. paper-feeding mechanism as claimed in claim 2, it is characterised in that the tilt adjusting mechanism is in the first state
When, the supporting part can automatically adjust the height higher than the paper supply tray under the effect of the pressure of part to be printed, to adjust
The gradient on the part surface to be printed.
4. the paper-feeding mechanism as described in claim any one of 1-3, it is characterised in that the supporting part at least two, respectively
Positioned at the part bottom to be printed perpendicular to paper supply direction both sides.
5. the paper-feeding mechanism as described in claim any one of 1-3, it is characterised in that the supporting part is one,
And positioned at the printed paper item bottom perpendicular to paper supply direction side.
6. the paper-feeding mechanism as described in claim any one of 1-3, it is characterised in that the tilt adjusting mechanism also includes being located at
Elastic portion material between the supporting part and the paper feeding cassette, one end of the elastic portion material is connected to the supporting part, another
End is connected to the bottom of the paper feeding cassette.
7. paper-feeding mechanism as claimed in claim 6, it is characterised in that the elastic portion material is spring.
8. the paper-feeding mechanism as described in claim any one of 1-3, it is characterised in that the tilt adjusting mechanism and the paper supply
Pallet is interlocked；
The tilt adjusting mechanism also includes the connection member being connected between the supporting part and the paper feeding cassette, the connection
Part can change the height that the supporting part stretches out paper supply tray according to the lifting of the paper supply tray.
9. the paper-feeding mechanism as described in claim any one of 1-3, it is characterised in that the tilt adjusting mechanism is located at the confession
Paper tray bottom, the paper supply tray is formed with through hole on the position relative with the supporting part；
In the first state, the supporting part is protruded upward from the through hole on the paper supply tray surface.
10. a kind of device for image forming, it is characterised in that including the paper-feeding mechanism described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099994.7A CN104925548B (en) | 2014-03-17 | 2014-03-17 | Device for image forming and paper-feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410099994.7A CN104925548B (en) | 2014-03-17 | 2014-03-17 | Device for image forming and paper-feeding mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104925548A CN104925548A (en) | 2015-09-23 |
| CN104925548B true CN104925548B (en) | 2017-06-30 |
Family
ID=54113032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410099994.7A Expired - Fee Related CN104925548B (en) | 2014-03-17 | 2014-03-17 | Device for image forming and paper-feeding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104925548B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04251036A (en) * | 1990-12-28 | 1992-09-07 | Canon Inc | Sheet feeding device |
| JPH05304393A (en) * | 1992-04-27 | 1993-11-16 | Sony Corp | Substrate separating device |
| JPH07304525A (en) * | 1994-05-10 | 1995-11-21 | Canon Inc | Sheet stacking device and image forming device |
| JPH1035901A (en) * | 1996-07-17 | 1998-02-10 | Tohoku Ricoh Co Ltd | Envelope feeding device and envelope feeding base cassette |
| CN102020124A (en) * | 2009-09-15 | 2011-04-20 | 东芝泰格有限公司 | Media stocker, paper feeding device, and method of controlling posture of recording media |
-
2014
- 2014-03-17 CN CN201410099994.7A patent/CN104925548B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04251036A (en) * | 1990-12-28 | 1992-09-07 | Canon Inc | Sheet feeding device |
| JPH05304393A (en) * | 1992-04-27 | 1993-11-16 | Sony Corp | Substrate separating device |
| JPH07304525A (en) * | 1994-05-10 | 1995-11-21 | Canon Inc | Sheet stacking device and image forming device |
| JPH1035901A (en) * | 1996-07-17 | 1998-02-10 | Tohoku Ricoh Co Ltd | Envelope feeding device and envelope feeding base cassette |
| CN102020124A (en) * | 2009-09-15 | 2011-04-20 | 东芝泰格有限公司 | Media stocker, paper feeding device, and method of controlling posture of recording media |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104925548A (en) | 2015-09-23 |
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