CN2482115Y - Automatic file feeding-in device - Google Patents
Automatic file feeding-in device Download PDFInfo
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- CN2482115Y CN2482115Y CN01229652U CN01229652U CN2482115Y CN 2482115 Y CN2482115 Y CN 2482115Y CN 01229652 U CN01229652 U CN 01229652U CN 01229652 U CN01229652 U CN 01229652U CN 2482115 Y CN2482115 Y CN 2482115Y
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- file
- roller
- feed
- speed
- feedthrough
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Abstract
The utility model discloses a document automatically feeding device, which comprises a document feeding roller used for feeding a document page by page and a transmission roller transmitting document transmitted through the document feeding roller. The document feeding roller operates in the continuously feeding way, connected with a power source through a power transmission element, during the transmission period of the transmission roller, the document feeding roller has a first speed, a second speed, and a third speed, the first speed is lower than the speed of the transmission roller; the second speed is higher than the first speed; the third speed is zero; so that the relative speed of the document feeding roller is changed in the document feeding process. The document automatically feeding device also comprises a roller axle used for carrying the document feeding roller and a coupling element, the roller axle is connected with the power transmission element, in order to drive the document feeding roller to rotate, and having the first speed; the coupling element is arranged on the roller axle, so that a torque generated by the power transmission element is transmitted to the document feeding roller before the transmission roller transmits the document.
Description
Technical field
The utility model relates to the automatic feedthrough of a kind of file, particularly relates to correctly touching in the process of automatic feed-in file producing a kind of device that divides page signal.
Background technology
The automatic feedthrough of file is used in facsimile recorder, image scanning machine and the duplicating machine, in order to the image of input file.These folded files with image can be along with " paper feed-in " machine one by one in the feed-in image read-out, and to read, the utility model promptly is a kind of design of " paper feed-in " machine automatically.
Fig. 1 is the basic structure of an automatic feed-in machine, and it has comprised a file feed-in roller 1 and a baffle plate 3.Baffle plate 3 is being pressed mutually by a pressure spring 3b and file feed-in roller 1, and a folded file 7 is positioned at the top of file feed-in roller 1 with piling up.
The automatic feedthrough of file as shown in Figure 1, wherein, the coefficientoffriction of file feed-in roller 1
RCoefficientoffriction greater than the friction baffle plate
Pd, the coefficientoffriction of friction baffle plate
PdAgain greater than the coefficientoffriction of file
P, μ just
R＞μ
Pd＞μ
P
When file feed-in roller 1 began to rotate, the lowermost file 7 in the document stack will be by the running of file feed-in roller 1 and baffle plate 3 in the feedthrough system, and this is because μ
R＜μ
PRelation.Again because μ
Pd＜μ
PRelation, so have only in the file 7 nethermost one can be sent out and feedthrough system among, other file page can be stopped by the running of baffle plate 3 and rest on original position.Therefore, the file that piles up just can be sent to conveying roller 9 by file feed-in roller 1 one by one.
Paging inductor 8 has a sensing arm 8a, when the tail end edge of a page file 7 passes through sensing arm 8a, and the front end of one page file page that continues is not in the back separated as yet and during sensing arm 8a, sensing arm 8a, can open downwards by gravity or spring force, thereby startup divides the switch (not providing among the figure) of page signal to send the branch page signal.
Described as aforementioned prior art, after the tail end edge of a page file passes through sensing arm 8a, if one page file page that continues later continues to send, if lack enough spaces to allow sensing arm 8a open downwards between two pages of the front and back, will take place can't paging problem.
Prior art has adopted electric clutch 10 to be used in order to solve this problem, and electric clutch 10 is between power conveying element 4 and wheel shaft 2, as shown in Figure 2.When the front end of file 7 by a sensing arm 8a part and after being transmitted roller 9 and driving, just starting a switch closes electric clutch 10, and cause wheel shaft 2 and power conveying element 4 to separate, at this moment, file feed-in roller 1 and power transmission file 4 is in " floating position " (floating position).When " floating position ", file feed-in roller 1 will be dragged by file 7, and file 7 is transmitted roller 9 and drives and advancing.
After the tail end of file 7 passes through sensing arm 8a, sensing arm 8a just starts a switch electric clutch 10 is opened, and cause wheel shaft 2 and power conveying element 4 to agree with, at this moment, file feed-in roller 1 by the drive of power conveying element 4 feed-in second page file among system.
In aforesaid prior art, electric clutch 10 occupies a very big space, and its external diameter is usually greater than 25mm, so the automatic feedthrough of the file of prior art can't be made lessly Just because of this, and the price of electric clutch 10 is also very expensive; And the utility model technology of this case promptly is to use electric clutch 10, thus, not only can dwindle the volume of total system, also can reduce the cost of manufacture of total system simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of file automatic feedthrough, and it can correctly produce the branch page signal in the process of file feed-in, and less, the low price of this device volume.
The purpose of this utility model is achieved in that promptly provides a kind of file automatic feedthrough, comprising: one with the described file file feed-in roller used of feed-in page by page; One transmits the conveying roller of the file that is sent via described file feed-in roller; Wherein, described file feed-in roller is that the mode with interrupted feed-in operates, and it is connected with a power source by a power transmissioning element, between the transmission period of described conveying roller, described file feed-in roller has: one first speed, and its speed is less than the speed of described conveying roller; One second speed, described first speed of its velocity magnitude; One third speed, its speed are zero; So that at the roller of file feed-in described in the process of described file feed-in relative velocity for changing; Described autofile feedthrough also comprises: one in order to carry the wheel shaft of described file feed-in roller, and it is connected with described power conveying element, rotate to order about described file feed-in roller, and it has described first speed; And a coupling element, be installed on the described wheel shaft, with the torque that described power conveying element is produced, before the conveying roller transfer files, be sent to described file feed-in roller.
Furtherly, the automatic feedthrough of file provided by the utility model includes a file feed-in roller, file that it will pile up or the file in paper disc are fed in the conveying roller in the system page by page, and conveying roller transfers the file to that the place of further processing handles again.The circumferential speed of aforesaid file feed-in roller is less than the circumferential speed of aforesaid conveying roller, and the rotation of aforesaid file feed-in roller is then driven by the power transmits the component of coupling on it.When conveying roller did not begin transfer files as yet, power transmits the component drove file feed-in roller and rotates with one first speed; When conveying roller began transfer files, the roller of file feed-in was then dragged by file, made file feed-in roller with a speed rotation greater than first speed; After the tail end edge of file left file feed-in roller, file feed-in roller can stop the rotation a bit of time.This stops the rotation a bit of time, cause produce between the page or leaf before and after the file of feed-in one ask space from, this distance just can make system produce correct branch page signal.This is that the utility model is reached by the cooperation running of the coupling element on barrier element on the power conveying element and the file feed-in roller wheel shaft, needn't use the electric clutch of prior art here, just can reach correct two-page separation function.
Description of drawings
Fig. 1 is the ultimate system synoptic diagram of automatic feedthrough;
Fig. 2 is the structural representation of existing automatic feedthrough;
Fig. 3 is one of the automatic feedthrough embodiment of a utility model synoptic diagram;
Fig. 4 is one of a utility model dynamic transfer system embodiment synoptic diagram;
Fig. 5 is the coupling element of Fig. 4 and a sectional view between the power transmits the component, and its display file feed-in roller is by the situation of power transfer element driven rotary;
Fig. 6 is the coupling element of Fig. 4 and a sectional view between the power transmits the component, and its display file feed-in roller is dragged the situation of rotation by file;
Fig. 7 is the coupling element of Fig. 4 and a sectional view between the power transmits the component, and display file tail end edge leaves after the file feed-in roller, the situation that file feed-in roller temporarily stops the rotation;
Fig. 8 is the coupling element of Fig. 4 and an exploded view between the power transmits the component;
Fig. 9 is the coupling element of Fig. 4 and the exploded view of the another one embodiment between the power transmits the component;
Figure 10 A, Figure 10, Figure 10 C are another one embodiment of the present utility model;
Figure 11 A and Figure 11 B are the stop angle synoptic diagram that Figure 10 A, Figure 10 B and Figure 10 C are produced when running;
Figure 12 A, Figure 12 B are another one embodiment of the present utility model.
Embodiment
Fig. 3 shows first embodiment of the automatic feedthrough of the utility model file, in the drawings, has used identical numbering corresponding to the element of the equal function of Fig. 1, Fig. 2, understands with the reading that helps reader.In Fig. 3, it has shown that the automatic feedthrough of file of the present utility model has comprised: file feed-in roller with wheel shaft 21, a baffle plate 3 and a power transmits the component 4.Power transmits the component 4 is connected to a power source (not shown), in order to drive the rotation of file feed-in roller 1.In the present embodiment, wheel shaft 2 is integrated as a whole single element with file feed-in roller 1.
With reference to figure 1, baffle plate 3 is the top that turning axle is installed in file feed-in roller 1 with axle center 3a, and pushes mutually by promotion pressure and the file feed-in roller 1 of a pressure spring 3b.A power transmits the component 4 installs on wheel shaft 2, and rotates with the direction shown in Fig. 3 arrow.An E type snap ring (not shown) is positioned on the wheel shaft 2, with power transmits the component 4 device on wheel shaft 2, and play the part of the role of an axle bush in this embodiment.Coupling element 5 devices are on wheel shaft 2, and this coupling element 5 is a bolt shape object in this embodiment.When power transmits the component 4 rotates with the direction shown in Fig. 3 arrow, the barrier element 4a that is positioned at above the power transmits the component 4 caters to coupling element 5, so, then the torque of power transmits the component 4 is sent to file feed-in roller 1, and drives 1 rotation of file feed-in roller.
With reference to figure 5, Fig. 6 and Fig. 7, when System Operation, file feed-in roller 1 is driven to rotate with the direction shown in Fig. 3 arrow, by the cooperation of baffle plate 3, file 7 can be sent page by page, and feed-in file 7 is among conveying roller 9.
When the front end of file 7 was transmitted roller 9 and bites, the translational speed of file 7 equaled the circumferential speed of conveying roller 9, and the circumferential speed of conveying roller 9 is greater than the circumferential speed of file feed-in roller 1; At this moment, the circumferential speed of file feed-in roller 1 will surpass the circumferential speed that power transmits the component 4 is given, so, coupling element 5 will before so that break away from the barrier element 4a that is positioned at above the power transmits the component 4, differ an angle θ therebetween, referring to Fig. 6.
Difference angle θ shown in Figure 6 can strengthen along with the continuing to drag of file 7, until the tail end edge of file 7 breaks away from till the file feed-in roller 1, as shown in Figure 7, its formed difference angle is with θ
dRepresented.When the tail end edge of file 7 breaks away from file feed-in roller 1, file feed-in roller 1 can temporarily stop the rotation, this is because the torque of power transmits the component 4 this moment can't be sent to wheel shaft 2, just can't be sent to file feed-in roller 1, because this difference angle θ
dRelation.During this time, next page file temporarily can stop at original position, also can be by among the feedthrough system.
Yet because power transmits the component 4 is to continue rotating, even if when aforementioned document feed-in roller 1 presents the state that temporarily stops, power transmits the component 4 remains and continues to rotate.Barrier element 4a above being positioned at power transmits the component 4 rotates θ
dDuring angle, can cater to coupling element 5 once again,, and continue file 7 is fed among the conveying roller 9 so file feed-in roller 1 begins rotation again, Fig. 5 to the process of Fig. 7 constantly repeat until file all transmission finish.
Fig. 8 shows an embodiment of the utility model dynamic transfer system, and this relates to the design of coupling element 5, and the coupling element 5 on the wheel shaft 2 of carrying file feed-in roller 1 adopts the design of bolt shape object 5.
Fig. 9 shows the another one embodiment of dynamic transfer system of the present utility model, and this is the variation design on coupling element 5, and the coupling element 5 on carrying file feed-in roller 1 wheel shaft 2 adopts the design of axle bush 5a, does not adopt bolt shape object 5.
As mentioned above, when file feed-in roller 1 stopped operating, file 7 just had been transmitted roller 9 and is transmitting, and produced a segment distance Δ ds before and after causing between the page file, and distance, delta ds can calculate via following formula:
Δ ds=π D θ
dWherein,
D is the diameter of file feed-in roller 1;
θ
dIt is the relative stop angle between power transmits the component 4 and the coupling element 5 as shown in Figure 7.
Be exactly one below and calculate Δ ds and relative stop angle θ
dExample, for convenience of description for the purpose of, earlier hypothesis file feed-in roller 1 has unequal angular velocity with conveying roller 9, both times of rotating a circle are the same Tr that is to say, its circumferential speed just in time is to be directly proportional with roller diameter.Suppose that the file feed-in roller 1 and the diameter of conveying roller 9 are respectively 15.5mm and 16.2mm, clearly can know: the circumferential speed of conveying roller 9 can be greater than the circumferential speed of file feed-in roller 1.After time, file feed-in roller 1 can advance file 7 distance of d1 at process Tr:
D1=D1* π=15.5*3.14=48.7 (mm) wherein,
D1 is the diameter of file feed-in roller 1.
In case file is transmitted roller 9 and bites, then at one time within the Tr, the distance that file 7 advances is d2:
D2=D2* π=16.2*3.14=50.9 (mm) wherein,
D2 is the diameter of conveying roller 9.
Δ d=d2-d1=2.2 (mm) wherein,
Δ d is when file 7 is transmitted roller 9 simultaneously and bites with file feed-in roller 1, at Tr after the time, and the distance that file feed-in roller 1 is dragged forward.
Be that 297mm is the example explanation with the most frequently used A4 yardage now, when file 7 left file feed-in roller 1, trailing distance was Δ ds:
Δds＝[(297－D3)/d2]*Δd
＝[(297-40)/50.9]*2.2
=11.1 (mm) wherein,
D3 is the distance between conveying roller 9 and the file feed-in roller 1, supposes that here it is 40mm.
With reference to figure 7, can understand Δ ds file feed-in roller 1 rotation θ just
dThe peripheral distance of angle.That is to say that after first page file and second page file were by file feed-in roller 1 feedthrough system, Δ ds was exactly the distance of the first page file tail end edge and the second page file front edge.According to practical experience, the spacing that is enough to produce correct branch page signal is 5mm, and therefore, aforementioned example calculated apart from spacing, is enough trust providing system to do to divide aspect the page signal.The relative stop angle θ that it produced
dCan be calculated as follows:
θ
d＝(Δds/πD1)*360°＝82°
According to this embodiment, relative stop angle θ
dCan calculate via the diameter of file feed-in roller 1 and the velocity contrast of two groups of rollers.
The 3rd embodiment of the present utility model is shown in Figure 10 A, 10B and 10C, and an end of carrying file feed-in roller 1 wheel shaft 2 has a plane 2a.Power transmits the component 4 has a V-type opening, and is placed in an end of carrying file feed-in roller 1 wheel shaft 2.When power transmits the component 4 rotations, the one side 4b of V-type opening can cater to the surperficial 2a of wheel shaft 2, shown in Figure 11 A, at this moment, torque can be delivered to file feed-in roller 1, and file feed-in roller 1 rotates with same direction with power transmits the component 4, and can be with among file 7 feedthrough systems.
When running, file feed-in roller 1, the file 7 that piles up can be separated page by page, and feedthrough system sends conveying roller 9 to by the cooperation of baffle plate 3 according to direction of arrow rotation.
The file 7 that will pile up when file feed-in roller 1 separates page by page, and feedthrough system sends conveying roller 9 to, conveying roller 9 will be bitten file 7 with circumferential speed and carry out forward, and the circumferential speed of conveying roller 9 causes the rotational speed of the rotational speed of file feed-in roller 1 greater than power transmits the component 4 greater than the circumferential speed of file feed-in roller 1.At this moment, the surperficial 2a of wheel shaft 2 can separate with the V-type open surfaces 4b of power transmits the component 4, and when the tail end edge of file 7 left file feed-in roller 1, relative angle can rest on θ
d, shown in Figure 11 B, at this moment, file feed-in roller 1 suspends rotation, and as previously described, apart from after producing, next opens file can to rotate feed-in once again up to Δ ds.
Figure 12 A and Figure 12 B are another embodiment of the opening of power transmits the component 4, and the opening that this design is a power transmits the component 4 is a plane opening, rather than the V-type opening.When power transmits the component 4 rotates according to the direction of arrow, one side of the opening of power transmits the component 4, can cater to the surperficial 2a (shown in Figure 12 A) of wheel shaft 2, so, torque can be sent to file feed-in roller 1 and drive 1 rotation of file feed-in roller, and remaining action is identical with front the 3rd embodiment.
Via the explanation of front, can recognize the automatic feedthrough of file of the present utility model, used than the more simple mechanism design of prior art, and can produce correct branch page signal.
Claims (8)
1, the automatic feedthrough of a kind of file comprises: one with the described file file feed-in roller used of feed-in page by page; One transmits the conveying roller of the file that is sent via described file feed-in roller; It is characterized in that, described file feed-in roller is that the mode with interrupted feed-in operates, and it is connected with a power source by a power transmissioning element, between the transmission period of described conveying roller, described file feed-in roller has: one first speed, and its speed is less than the speed of described conveying roller; One second speed, described first speed of its velocity magnitude; One third speed, its speed are zero; So that at the roller of file feed-in described in the process of described file feed-in relative velocity for changing; Described autofile feedthrough also comprises: one in order to carry the wheel shaft of described file feed-in roller, and it is connected with described power conveying element, rotate to order about described file feed-in roller, and it has described first speed; And a coupling element, be installed on the described wheel shaft, with the torque that described power conveying element is produced, before the conveying roller transfer files, be sent to described file feed-in roller.
2, the automatic feedthrough of a kind of file as claimed in claim 1 is characterized in that, the running of described coupling element can make aforesaid file feed-in roller stop operating a period of time when file transmits the tail end edge and leaves aforesaid file feed-in roller.
3, the automatic feedthrough of a kind of file as claimed in claim 2 is characterized in that, described a period of time is to cause paging sensing generation device to be produced correct branch page signal in the enough space of generation in the middle of the page or leaf of file and the page or leaf.
4, the automatic feedthrough of a kind of file as claimed in claim 3 is characterized in that, described coupling element is coupled in a barrier element on the described power conveying element.
5, the automatic feedthrough of a kind of file as claimed in claim 4 is characterized in that, described coupling element is a bolt shape object.
6, the automatic feedthrough of a kind of file as claimed in claim 5 is characterized in that, described coupling element is one to be fixed in the axle bush on the described wheel shaft.
7, the automatic feedthrough of a kind of file as claimed in claim 1 is characterized in that, an end of the wheel shaft of described carrying file delivery roller has a plane, and has a V-type opening on described power conveying element.
8, the automatic feedthrough of a kind of file as claimed in claim 1 is characterized in that, an end of the wheel shaft of described carrying file delivery roller has a plane, and also has a plane on aforesaid power conveying element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01229652U CN2482115Y (en) | 2001-07-02 | 2001-07-02 | Automatic file feeding-in device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01229652U CN2482115Y (en) | 2001-07-02 | 2001-07-02 | Automatic file feeding-in device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482115Y true CN2482115Y (en) | 2002-03-13 |
Family
ID=33644465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01229652U Expired - Lifetime CN2482115Y (en) | 2001-07-02 | 2001-07-02 | Automatic file feeding-in device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2482115Y (en) |
-
2001
- 2001-07-02 CN CN01229652U patent/CN2482115Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110702 Granted publication date: 20020313 |