CN101673068A - Paper box paper-support board structure for copying machine - Google Patents
Paper box paper-support board structure for copying machine Download PDFInfo
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- CN101673068A CN101673068A CN200910055753A CN200910055753A CN101673068A CN 101673068 A CN101673068 A CN 101673068A CN 200910055753 A CN200910055753 A CN 200910055753A CN 200910055753 A CN200910055753 A CN 200910055753A CN 101673068 A CN101673068 A CN 101673068A
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- copying machine
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Abstract
The invention discloses a paper-support board structure of a copying machine or a paper-feeding component of a printer. The paper box paper-support board structure for the copying machine is characterized in that in a paper feeding box (9), the upper part of the header end of the paper-support board (5) is provided with a pickup roller (1), the lower part is provided with a spring (2), and a rotary support mechanism (4) is arranged on the paper feeding box (9) in a position with the length of 0.1-0.4 of the paper-support board (5) at the tail end of the paper-support board (5). The rotary support mechanism (4) can be the paper-support board (5) and supports against the paper feeding box (9) by a lug boss structure, and the paper-support board (5) is provided with a limiting mechanism for limiting the paper-support board (5) to move in the length direction; and the power-support board structure can be a pin shaft structure and can be a concave joint structure embedded into the paper-support board (5) by a triangular tip. The technical scheme reduces the positive pressure to the pickup roller (1), weakens the noise and the energy consumption caused by mechanical action, and is beneficial to prolonging the service of the machine.
Description
(1) technical field
The present invention is a kind of duplicating machine or printer paper platform structure, is included in the paper feeding casket.
(2) background technology
Known, important process parts---paper pushing part is arranged in duplicating machine or printer, the performance of paper pushing part, quality quality, the paper feeding performance quality that is related to complete machine, the error rate of the stationarity of paper feeding, the speed of paper feeding, paper feeding etc., paper feeding action in the paper pushing part is by the fricative result of paper-sheets rolling wheel to paper, the structure of paper pushing part also can be related to the pressure and the action of paper-sheets rolling wheel, causes concerning and have influence on the size of intensity, service life of a machine and the energy consumption of noise that machine sends, mechanical action.
At present, the structural drawing of the paper pushing part in duplicating machine and printer is such, the paper platform of a regular length, and end is rotationally connected by bearing pin, and head end top is paper-sheets rolling wheel, and the bottom is to be supported by spring.
Paper platform is to use in order to place paper.The structure of prior art paper platform is to rotate around terminal bearing pin, it is subjected to the mutual balance of rotating torque of both direction and is the stationary water level state, the moment of a direction is the moment that the gravity downward force of paper produces, another opposing torque is the moment that spring produces to upper support, moment upwards must be greater than downward moment, torque difference produces normal pressure upwards to paper-sheets rolling wheel, owing to have this normal pressure, and can be so that paper-sheets rolling wheel produces friction force and transports paper.
Normal pressure to paper-sheets rolling wheel must have a suitable value, changes in the interval that do not coexist of this value of paper feeding casket full load because of paper.This value can not be too small, paper on paper platform during than small dimension problem little, because spring still can provide bigger power, if but when placing the large-size paper, when the power that spring makes progress can not be greater than paper gravity, can not get normal pressure on the paper-sheets rolling wheel, just can not produce friction force, can not paper feeding.
Yet the power that spring makes progress can not be excessive, otherwise when using the small dimension paper, spring force is crossed conference paper-sheets rolling wheel is applied bigger power, and send bigger noise, than the mechanical action and the energy consumption of hard intensity, even influence service life of a machine.
For this reason, everybody pursuing, uses any paper that paper-sheets rolling wheel is all only produced less normal pressure.Also promptly use the difference minimum of the normal pressure that normal pressure that the maximum specification paper produces paper-sheets rolling wheel and minimum gauge paper produce.
(3) summary of the invention
Purpose of the present invention, plan provides a kind of paper platform structure, feasible can remaining under the paper prerequisite of carrying different size, weight, reduce the elastic force of spring, then reduce normal pressure to paper-sheets rolling wheel, reduce the intensity of mechanical action, and weaken vibration, noise and the energy consumption of machine, improve the performance of machine.
The objective of the invention is to be achieved through the following technical solutions:
A kind of paper box paper-support board structure for copying machine, be included in the paper-sheets rolling wheel that paper platform head end top is provided with in the paper feeding casket, the spring that the bottom is provided with is characterized in that, in the position of distance paper platform end 0.1 to 0.4 paper platform (5) length rotary support mechanism is set and is assemblied on the paper feeding casket.
Further, described rotary support mechanism does not have, and for paper platform is supported on the paper feeding casket with boss structure, and the position-limit mechanism that paper platform moves at length direction is placed restrictions in setting on paper platform.
Further again, spacing rod is set on paper platform, embed in the positive stop that is fixed on the paper feeding casket.
Further again, described boss upper surface is the arc surface of 0.2 to 1.5 millimeter of radius.
Further, described rotary support mechanism is that paper platform is assemblied on the paper feeding casket with pin shaft structure.
Further, described rotary support mechanism is that paper platform is assemblied on the paper feeding casket with the recessed joint structure that boss embeds paper platform.
Further, described hinged supporting mechanism is positioned at apart from the position of paper platform end 0.15 to 0.25 paper platform length.
Adopt the technical program, because the shape of paper platform, size do not change, therefore duplicate or position that printer paper is placed on the paper platform can not become yet, the center of gravity of paper is also constant, move to apart from the position of paper platform end 0.1 to 0.4 paper platform length when the rotating shaft of paper platform rotation is positioned at the paper platform end by prior art, promptly in the middle of paper platform, move.When the end of placing paper surpasses the Support Position, the moment that the anterior paper of the moment meeting partial equilibrium strong point that overage produces produces.The gravitational torque that therefore big paper is produced can reduce.The normal pressure that makes big paper and little paper like this and produced is comparatively approaching.Promptly can reach the purpose that reduces normal pressure by the appropriate design spring parameter.Mechanical action and the noise, the energy consumption that produce also weaken, and have reached purpose of the present invention.
Superiority of the present invention and beneficial effect: adopt technical scheme of the present invention, can reduce the elastic force of paper pushing part medi-spring, reduced normal pressure thus to paper-sheets rolling wheel, can normally rub paper with the hands when transporting big specification paper transports, when transporting the paper of small dimension, lesser amt, spring reduces than prior art the normal pressure of paper-sheets rolling wheel " unnecessary ", therefore, the noise, the energy consumption that are produced by mechanical action also weaken, favourable lengthening the life of a machine.
(4) description of drawings
Fig. 1 is a kind of embodiment of paper box paper-support board structure for copying machine of the present invention, the structure diagram of described rotary support mechanism for being connected with paper platform with boss structure;
Fig. 2 is a kind of embodiment of paper box paper-support board structure for copying machine of the present invention, the structure diagram of described rotary support mechanism for being connected with paper platform with pin shaft structure;
Fig. 3 is a kind of embodiment of paper box paper-support board structure for copying machine of the present invention, the structure diagram that described rotary support mechanism is connected for the recessed joint that embeds paper platform with the boss top;
Fig. 4 is the structure diagram of this desktop computer of prior art paper pushing part, is depicted as the constitutional diagram of placing big specification paper;
Fig. 5 places the constitutional diagram of big specification paper for Fig. 4;
Fig. 6 is the stereographic map of duplicating machine paper pushing part.
Among the figure: the 1st, paper-sheets rolling wheel, the 2nd, spring, the 3rd, paper, the 4th, rotary support mechanism, the 5th, paper platform, the 6th, positive stop, the 7th, spacing rod, the 8th, bearing pin pair, the 9th, paper feeding casket;
F
LBe the normal pressure that paper-sheets rolling wheel is subjected to, F
TBe spring force, F
ZBe paper gravity, M
ZBe the downward moment that paper gravity produces, M
TBe the upwards moment that spring produces.
(5) embodiment
Further describe method and apparatus structure of the present invention below in conjunction with accompanying drawing.
The improvement structure of a kind of duplicating machine or printer paper pushing part, be included in the paper feeding casket 9, the head end top of paper platform 5 is provided with floating paper-sheets rolling wheel 1, and the bottom is provided with spring 2, in the position of distance paper platform 5 ends 0.1 to 0.4 paper platform 5 length rotary support mechanism 4 is set and is assemblied on the paper feeding casket 9.The downward moment M of 3 pairs of turning axles of paper
ZBe broken down into two moment M that the direction difference varies in size
Z1And M
Z2, the size (M of moment
Z=M
Z1-M
Z2) part of having been cancelled out each other, moment diminishes, in order to reach moment purpose stably, the moment M that spring 2 makes progress
TAlso can reduce, thereupon to the normal pressure F of top paper-sheets rolling wheel 1
LDiminish, the mechanical action of paper-sheets rolling wheel 1 diminishes, and the noise, the energy consumption that are produced by mechanical action also weaken.
Described paper platform 5 is assemblied on the paper feeding casket 9 with boss structure, and the position-limit mechanism that paper platform 5 moves at length direction is placed restrictions in setting on paper platform 5.Spacing rod 7 is set on paper platform 5, embeds in the positive stop 6 that is fixed on the paper feeding casket 9.Boss structure of the present invention both provided the support to paper platform 5, and paper platform 5 is rotated on boss freely, and paper platform 5 moving at length direction placed restrictions in the cooperation of spacing rod 7 and positive stop 6.Can be used as one of rotary support mechanism 4 of the present invention scheme.
Described paper platform 5 is assemblied on the paper feeding casket 9 with pin shaft structure, and pin shaft structure not only can have been realized rotating but also be mobile to realizing placing restrictions on, and can be used as another program of rotary support mechanism 4 of the present invention.
Described paper platform 5 is assemblied on the paper feeding casket 9 with the recessed joint structure that boss embeds paper platform 5.Recessed joint structure on paper platform 5 has guaranteed that paper platform 5 can only rotate and can not produce mobilely, also can be used as the scheme again of rotary support mechanism 4 of the present invention on boss.
Described rotary support mechanism 4 is positioned at apart from the position of paper platform 5 terminal 0.15-0.25 paper platform 5 length.Rotary support mechanism 4 is positioned on the position of paper platform 5 above-mentioned scopes, can reach the effect that has better weakened spring 2 spring forces, and guarantees to place on the paper platform 5 stationarity of paper.
Embodiment, mutually neat with paper platform 5 just as paper 3, paper weight F
ZBecome, be positioned at apart from paper platform 5 ends 0.25, the arm of force of turning axle is shortened 0.5 than prior art, then moment M downwards as rotary support mechanism 4
ZProduct for both reduces half than prior art, the moment M that makes progress for the steady spring of moment
TAlso must reduce half, because spring 2 arm of forces of present embodiment reduce 0.75, then spring force will be decreased to 0.66 (2/3), so the normal pressure F of paper-sheets rolling wheel 1
LAlso be decreased to original 2/3rds.
Claims (7)
1. paper box paper-support board structure for copying machine, be included in the paper-sheets rolling wheel (1) that paper platform (5) head end top is provided with in the paper feeding casket (9), the spring (2) that the bottom is provided with, it is characterized in that, in the position of terminal 0.1 to 0.4 paper platform (5) length of distance paper platform (5) rotary support mechanism (4) is set and is assemblied on the paper feeding casket (9).
2. according to the described paper box paper-support board structure for copying machine of claim 1, it is characterized in that described rotary support mechanism (4) is supported on the paper feeding casket (9) with boss structure for paper platform (5), and go up setting at paper platform (5) and place restrictions on the position-limit mechanism that paper platform (5) moves at length direction.
3. according to the described paper box paper-support board structure for copying machine of claim 2, it is characterized in that on paper platform (5), being provided with spacing rod (7), embed in the positive stop (6) that is fixed on the paper feeding casket (9).
4. according to the described paper box paper-support board structure for copying machine of claim 2, it is characterized in that described boss upper surface is the arc surface of 0.2 to 1.5 millimeter of radius.
5. according to the described paper box paper-support board structure for copying machine of claim 1, it is characterized in that described rotary support mechanism (4) is assemblied on the paper feeding casket (9) with pin shaft structure for paper platform (5).
6. according to the described paper box paper-support board structure for copying machine of claim 1, it is characterized in that described rotary support mechanism (4) is assemblied on the paper feeding casket (9) with the recessed joint structure that boss embeds paper platform (5) for paper platform (5).
7. according to the described paper box paper-support board structure for copying machine of claim 1, it is characterized in that described hinged supporting mechanism (4) is positioned at apart from the position of terminal 0.15 to 0.25 paper platform (5) length of paper platform (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910055753A CN101673068A (en) | 2009-07-31 | 2009-07-31 | Paper box paper-support board structure for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910055753A CN101673068A (en) | 2009-07-31 | 2009-07-31 | Paper box paper-support board structure for copying machine |
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| Publication Number | Publication Date |
|---|---|
| CN101673068A true CN101673068A (en) | 2010-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910055753A Pending CN101673068A (en) | 2009-07-31 | 2009-07-31 | Paper box paper-support board structure for copying machine |
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| CN (1) | CN101673068A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571650A (en) * | 2017-08-25 | 2018-01-12 | 绵阳涪泽恩达科技有限公司 | Computer output equipment warning system |
| CN107601136A (en) * | 2017-09-25 | 2018-01-19 | 苏州东纳电子科技有限公司 | A kind of impact printer divides online structure automatically |
-
2009
- 2009-07-31 CN CN200910055753A patent/CN101673068A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571650A (en) * | 2017-08-25 | 2018-01-12 | 绵阳涪泽恩达科技有限公司 | Computer output equipment warning system |
| CN107601136A (en) * | 2017-09-25 | 2018-01-19 | 苏州东纳电子科技有限公司 | A kind of impact printer divides online structure automatically |
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Open date: 20100317 |