CN1172834C - Mechanical paper retaining device - Google Patents
Mechanical paper retaining device Download PDFInfo
- Publication number
- CN1172834C CN1172834C CNB011106697A CN01110669A CN1172834C CN 1172834 C CN1172834 C CN 1172834C CN B011106697 A CNB011106697 A CN B011106697A CN 01110669 A CN01110669 A CN 01110669A CN 1172834 C CN1172834 C CN 1172834C
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- paper
- retaining
- projection
- arm
- cam pack
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Abstract
The present invention relates to a mechanical paper retaining device which comprises a shaft, a step motor which drives the shaft to rotate, a cam assembly provided with a first convex block and a second convex block, a paper retaining arm on which a stress point is arranged, and an elasticity clamping device, wherein the cam assembly is driven by the shaft to lead the first convex block and the second convex block to rotate, and the stress point is pushed by the rotation of the first convex block to lead a rotary arm to move upwards. When the paper retaining arm moves upwards, the elasticity clamping device is clamped with the paper retaining arm and is positioned in a paper feeding position. The elasticity clamping device is pushed by the rotation of the second convex block to move, the paper retaining arm disengages from the elasticity clamping device and moves downwards because of the self weight, and the paper retaining arm is positioned in a retaining position.
Description
Technical field
The present invention relates to a kind of mechanical paper retaining device, refer to a kind of being applied in the automatic carriage especially, in order to control paper alignment or enter mechanical paper retaining device in this automatic carriage.
Background technology
Automatic feed is that multiple business machine possesses and essential function, and for example facsimile apparatus, photoprinter or scanning device all have automatic carriage (ADF) so that the paper in the paper box is sent in the machine body one by one.
See also Fig. 1, it expresses a kind of traditional automatic carriage.This automatic carriage comprises an ADF body 11, a pickup roller 12, one minute a cardboard 13 and a compression spring 14.When getting paper action beginning, according to the difference of paper sheet thickness,, enter branch cardboard 13 one by one in regular turn by the adjusting of compression spring 14, and by and the frictional force drives of 12 of pickup rollers advance, and send in the machine body xerox, scan, required processing such as fax.Before paper enters the branch cardboard of this automatic carriage, stop alignment with a baffle plate 15, this baffle plate 15 is controlled by an electromagnetic valve (not shown), to switch between a blocking position and a paper feeding position.Under this blocking position, paper 16 can't enter in this automatic carriage, and waits for this paper retaining 15 alignment that is as the criterion, shown in Fig. 2 a.Under this paper feeding position, carry on this baffle plate 15, stay a slit 17 and enter one by one in this automatic carriage, shown in Fig. 2 b for paper 16.
Summary of the invention
Because above paper retaining device system is with solenoid-driven, cost is higher, and therefore designing a kind of lower-cost mechanical paper retaining device is main purpose of the present invention.
Therefore, a purpose of the present invention is to provide a kind of mechanical paper retaining device, and it utilizes cam to engage the cooperation of device with elastic force, reaches the purpose that retaining paper arm switches between blocking position and paper feeding position easily.
A first aspect of the present invention relates to a kind of mechanical paper retaining device, enters in the automatic carriage in order to the control paper, and it comprises: one; One stepper motor drives this axle and is rotated; One cam pack has one first projection and one second projection on it, this cam pack is subjected to this drive and this first projection and second projection are rotated; One retaining paper arm has a stress point on it, this stress point moves up this retaining paper arm because of the contact that is subjected to this first projection rotation; An and elastic force engaging device, when this retaining paper arm moves up, this elastic force engaging device engages this retaining paper arm and is in a paper feeding position, this elastic force engaging device produces displacement because of the contact that is subjected to this second projection rotation, and then makes this retaining paper arm break away from this elastic force to engage device and move down because of own wt and be in a blocking position.
According to above-mentioned conception, also comprise a free-wheel clutch in the mechanical paper retaining device, be installed between this axle and this cam pack, it is rotated in the forward can provide this cam pack to be driven along first hand of rotation by this axle.
According to above-mentioned conception, this cam pack is when this retaining paper arm is in blocking position in the mechanical paper retaining device, this drives this free-wheel clutch and carries out contrarotation, because this free-wheel clutch and interaxle slight friction force, can drive this cam pack according to contrarotation, to this elastic force engaging device tail end, this cam pack stops operating and gets back to an initial position up to contact.
According to above-mentioned conception, moving this axle of this stepper motor frenulum and this cam pack stop after complying with and being rotated in the forward a fixed angle in the mechanical paper retaining device, and then this retaining paper arm are moved up engage and be in this paper feeding position.
According to above-mentioned conception, also comprise a body in the mechanical paper retaining device, this retaining paper arm be pivotal engagement on this body, and this elastic force engaging device also is fixedly arranged on this body.
According to above-mentioned conception, this stress point is a locating dowel pin (pin) in the mechanical paper retaining device.
According to above-mentioned conception, this elastic force engaging device is a spring in the mechanical paper retaining device, have a crooked attachment point and a tail end on it, this bending attachment point engages for the locating dowel pin of this retaining paper arm, the rotation of this second projection produces displacement to its tail end contact, so make the locating dowel pin of this retaining paper arm break away from this bending attachment point and because of gravity fall to be in this blocking position.
According to above-mentioned conception, have an angle between first projection in the mechanical paper retaining device on this cam pack and second projection, and before and after should axially being, be misplaced.
According to above-mentioned conception, this retaining paper arm comprises one first part and one second partly in the mechanical paper retaining device, and wherein this first part pivotal engagement is in this second part.
According to above-mentioned conception, the stepper motor in the mechanical paper retaining device in this stepper motor and this automatic carriage is a shared stepper motor.
Description of drawings
Describe the present invention in detail below in conjunction with accompanying drawing, so that more understand the present invention in depth.Wherein:
Fig. 1 represents the generalized section of an automatic carriage.
Fig. 2 a, 2b represent that baffle plate is subjected to solenoid control and the scheme drawing that switches between a blocking position and a paper feeding position.
Fig. 3 a, 3b, 3c, 3d represent to can be applicable to each member schematic appearance in the preferred embodiment of the present invention of automatic carriage (ADF) with and assembling after organigram, wherein Fig. 3 b comprises Fig. 3 b1, Fig. 3 b2, represents the birds-eye view and the lateral plan of cam pack respectively.
Fig. 4 a, 4b, 4c, 4d represent the serviceability scheme drawing of preferred embodiment of the present invention.
The specific embodiment
See also Fig. 3 a, 3b, 3c, 3d, its expression can be applicable to each member schematic appearance in the preferred embodiment of the present invention of automatic carriage (ADF) with and assembling after organigram.Wherein Fig. 3 a expresses the structure of this retaining paper arm 31, and it comprises first partly 311 and second partly 312, wherein this first partly 311 pivotal engagement in this second partly 312, and second partly have a locating dowel pin 3121 on 312.And Fig. 3 b1,3b2 express the lateral plan and the birds-eye view of a cam pack 32, have first projection 321 and second projection 322 on it, and have an angle between this projection, and are misplaced before and after should axially being.
Fig. 3 c then expresses the elastic force engaging device of being formed with spring 33, has a crooked attachment point 331 on it and has a bandy tail end 332.Organigram after then expressing it and be assembled in a body 30 as for Fig. 3 d, wherein second of this retaining paper arm 31 partly 312 by pivot 3122 be articulated in this body 30 on, and the elastic force of being formed with spring engaging device 33 also be fixedly arranged on this body 30 on, be engaged on one 35 by free-wheel clutch 34 as for 32 of cam packs, 35 on this axle is subjected to a stepper motor (not shown, can be the stepper motor in the shared automatic carriage) drive, and then drive this axle and carry out forward and reverse rotation.
See also Fig. 4 a, 4b, 4c, 4d again, it is the serviceability scheme drawing of preferred embodiment of the present invention, below cooperates the action of automatic carriage and is described.Fig. 4 a is shown in the incipient state after the start, and this moment, this retaining paper arm 31 was in a blocking position carrying out stopping and the action of aliging of paper, and 32 contacts of this cam pack are positioned at an initial position to the locating dowel pin 3121 of this retaining paper arm 311.
And when automatic carriage will be got the paper action, the axle 35 that this cam pack 32 is driven by the stepper motor (not shown) stops after rotating a fixed angle toward the clockwise direction with the drive of free-wheel clutch 34, the state of arrival shown in Fig. 4 b, this moment, first projection 321 of this cam pack 32 was locating dowel pin 3121 contacts of this retaining paper arm 311 to be engaged to elastic force on the crooked attachment point 331 of device 33 engage, and then make this retaining paper arm 311 be positioned at a paper feeding position, and this automatic carriage can be taken into paper smoothly.
When paper has been got and need be made retaining paper arm 31 be in a blocking position again to stop that with what carry out paper when aliging action, 32 of cam packs that driven by the stepper motor (not shown) rotate an angle toward the clockwise direction again and make this elastic force engaging device 33 of second projection, 322 contacts have bandy terminal 332 with the generation displacement (state shown in Fig. 4 c.), and then this blocking position that makes the locating dowel pin 3121 of this retaining paper arm 31 break away from these bending attachment points 331 and reply because of gravity fall, arrive the state shown in Fig. 4 d.
For can be by the replying state shown in Fig. 4 d to the incipient state shown in Fig. 4 a, this axle 35 just drives this free-wheel clutch 34 and carries out left-hand revolution, because the slight friction force that this free-wheel clutch 34 and axle are 35, so can drive this cam pack 32 according to left-hand revolution, up to contact to this elastic force engaging device 33 have bandy terminal 332 after, this cam pack 32 just stops operating and gets back to reference position, even this axle 35 is driven by the stepper motor (not shown) still and is rotated.
In sum, the designed mechanical paper retaining device that goes out of the present invention, cost can be low with the common paper retaining device of solenoid-driven, effectively reaches main purpose of the present invention.Though described preferred embodiment, yet be not to be used for limiting the present invention, anyly be familiar with modification or the modification that these those skilled in the art are done without departing from the spirit and scope of the present invention, should be considered as belonging in the claims scope of the present invention.
Claims (10)
1. a mechanical paper retaining device enters in the automatic carriage in order to the control paper, it is characterized in that comprising:
One;
One stepper motor drives this axle and is rotated;
One cam pack has one first projection and one second projection on it, this cam pack is subjected to this drive and this first projection and second projection are rotated;
One retaining paper arm has a stress point on it, this stress point moves up this retaining paper arm because of the contact that is subjected to this first projection rotation; And
One elastic force engaging device, when this retaining paper arm moves up, this elastic force engaging device engages this retaining paper arm and is in a paper feeding position, this elastic force engaging device produces displacement because of the contact that is subjected to this second projection rotation, and then makes this retaining paper arm break away from this elastic force to engage device and move down and be in a blocking position.
2. mechanical paper retaining device as claimed in claim 1 wherein also comprises a free-wheel clutch, is installed between this axle and this cam pack, and it is rotated in the forward can provide this cam pack to be driven along first hand of rotation by this axle.
3. mechanical paper retaining device as claimed in claim 2, wherein this cam pack is when this retaining paper arm is in blocking position, this drives this free-wheel clutch and carries out contrarotation, because this free-wheel clutch and interaxle slight friction force, can drive this cam pack according to contrarotation, to this elastic force engaging device tail end, this cam pack stops operating and gets back to an initial position up to contact.
4. mechanical paper retaining device as claimed in claim 3, wherein this stepper motor drives this axle and this cam pack and stops according to after being rotated in the forward a fixed angle, and then this retaining paper arm is moved up engage and be in this paper feeding position.
5. mechanical paper retaining device as claimed in claim 1 wherein also comprises a body, and this retaining paper arm pivotal engagement is on this body, and this elastic force engaging device also is fixedly arranged on this body.
6. mechanical paper retaining device as claimed in claim 1, wherein this stress point is a locating dowel pin.
7. mechanical paper retaining device as claimed in claim 6, wherein this elastic force engaging device is a spring, have a crooked attachment point and a tail end on it, this bending attachment point engages for the locating dowel pin of this retaining paper arm, the rotation of this second projection produces displacement to its tail end contact, so make the locating dowel pin of this retaining paper arm break away from this bending attachment point and because of gravity fall to be in this blocking position.
8. mechanical paper retaining device as claimed in claim 1 wherein has an angle between first projection on this cam pack and second projection, and is misplaced before and after should axially being.
9. mechanical paper retaining device as claimed in claim 1, wherein this retaining paper arm comprises one first part and one second partly, and wherein this first part pivotal engagement is in this second part.
10. mechanical paper retaining device as claimed in claim 1, wherein the stepper motor in this stepper motor and this automatic carriage is a shared stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011106697A CN1172834C (en) | 2001-04-16 | 2001-04-16 | Mechanical paper retaining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011106697A CN1172834C (en) | 2001-04-16 | 2001-04-16 | Mechanical paper retaining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1381392A CN1381392A (en) | 2002-11-27 |
| CN1172834C true CN1172834C (en) | 2004-10-27 |
Family
ID=4658746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011106697A Expired - Fee Related CN1172834C (en) | 2001-04-16 | 2001-04-16 | Mechanical paper retaining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1172834C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311086B (en) * | 2007-05-25 | 2011-04-13 | 东友科技股份有限公司 | Sheet feeding mechanism and adaptable automatic paper feeder |
| CN109761073B (en) * | 2018-12-20 | 2020-10-23 | 全亿大科技（佛山）有限公司 | Paper feeding box |
| CN110435312B (en) * | 2019-08-06 | 2021-05-25 | 广州来丽智能科技有限公司 | Automatic and rapid positioning device and method for intelligent flat-panel printer and installation method |
| CN111516029A (en) * | 2020-04-17 | 2020-08-11 | 珠海格力电器股份有限公司 | Auxiliary cutting device |
-
2001
- 2001-04-16 CN CNB011106697A patent/CN1172834C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1381392A (en) | 2002-11-27 |
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Owner name: GUANGBAO TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XULI CO., LTD. Effective date: 20040205 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20040205 Address after: Taiwan City, Taipei Applicant after: Lite-On Technology Corporation Address before: Taiwan City, Taipei Applicant before: Xuli Co., Ltd. |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |