CN2363881Y - Driving device for paper feeding mechanism of printer - Google Patents
Driving device for paper feeding mechanism of printer Download PDFInfo
- Publication number
- CN2363881Y CN2363881Y CN 97225515 CN97225515U CN2363881Y CN 2363881 Y CN2363881 Y CN 2363881Y CN 97225515 CN97225515 CN 97225515 CN 97225515 U CN97225515 U CN 97225515U CN 2363881 Y CN2363881 Y CN 2363881Y
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- CN
- China
- Prior art keywords
- cam
- fork
- puck
- caused
- feeding mechanism
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- Expired - Lifetime
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- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
The utility model relates to a driving device of a paper conveying mechanism on printing machines, which is characterized in that cams are conjugated cams (18, 19) which are both fixedly connected with a gear (7), wherein, the cam (18) is contacted with a pressure roller (20); the cam (19) is contacted with a pressure roller (21). The two pressure rollers (20, 21) are both arranged on the same swing rod (3). The swing rod between the two pressure rollers is provided with an included angle theta with a definite value. Because relevant component parts, such as a balancing mechanism, a chain wheel, a chain, etc. are omitted after adopting the conjugated cams to replace the original single cam, the entire device is caused to be simplified, driving links are reduced, the stability and the precision of the paper conveying mechanism are caused to be enhanced, cost is also caused to be decreased simultaneously and consequently, etc.
Description
The utility model relates to the drive unit of feeding mechanism on a kind of printing machine.
Can at present, the feeding mechanism on the printing machine all be furnished with drive unit, transmit paper exactly and guarantee chromatography precision for feeding mechanism, and key is the reliability and the precision of drive unit.Driving device structure in the past (as Fig. 1) mainly includes gear 6,7, and cam 5 promotes roller 4, transfer gripper swinging mechanism 1,2,3, constant force mechanisms 11,12,13,14,15,16,17.Described cam 5 is fixed on the gear 7, cam 5 contacts with a promotion roller 4 again, its roller 4 is connected with the fork 3 that has fulcrum, fork links to each other with transfer gripper 1 by connecting rod 2, the fulcrum of transfer gripper 1 is O ' point, be eccentric in the gear 6 central point O1 points that are meshed with gear 7, offset is e.Described transfer gripper 1 is fixedly connected with constant force mechanisms again, and it includes sprocket wheel 8, chain 10, and idle wheel 9 is a tension spring 11 etc.Above-mentioned this mechanism, because fixing link is many, the systematic error of the foozle of cam and entire mechanism in addition, cause extension spring in the balanced controls when work, to still have the variation of a spot of amount of tension, this variation because of inertia and vibration, and the spring wild effect occurs when printing machine runs up, transfer gripper is occurred when getting paper can not be static relatively, transfer error or handing-over error occur.
In order to address the above problem, improve cam structure, realize improving the purpose of transfer precision and stability.
The utility model is to realize like this, described cam is a conjugate cam 18,19, its cam 18,19 all connect firmly with gear 7, and its cam 18 contacts with puck 20, and cam 19 contacts with puck 21, two puck 20,21 is installed on the same fork 3 in the transfer gripper swing mechanism, and the fork between puck has the certain value angle theta.
One of described two pucks 20,21 are eccentric wheel.
Further specify below in conjunction with accompanying drawing.
The existing drive unit schematic diagram of Fig. 1
Fig. 2 the utility model schematic diagram
See Fig. 2,, simplify the internal structure of an organization in order to improve the transfer precision, change the cam among Fig. 15 into conjugate cam, conjugate cam cam 18 promotes roller 20, and cam 19 promotes roller 21, two rollers are installed on the same fork 3, angle theta between two roller levers is a definite value, is the rigidity angle on the fork 3, two pucks 20,21 contact with two cams 18,19 respectively simultaneously, two cam curves satisfy the other side's condition each other, thus, promote fork 3 with O
AFor fulcrum is done reciprocal swing.When cam 19 is power resources, along with cam 19 liftings, promote roller 20, make fork 3 counter-clockwise swings, fork 3 makes transfer gripper 1 along O ' spot wobble by connecting rod 2 pulling transfer grippers 1, plays the transfer effect at A point place simultaneously, O ' is the transfer gripper oscillation center, and is eccentric in the pivot O of gear 6
1, O ' is simultaneously also around O
1Point rotates synchronously with gear 6; When cam 20 was power resources, cam 20 promoted rollers 21, and drove fork 3 and swing clockwise, and fork 3 returns transfer gripper 1 by connecting rod 2 again, for next transfer is prepared.
In this device, for remedying the mismachining tolerance of cam and lever, one of two rollers 20,21 are designed to eccentric, and eccentricity value is e
1, eccentric direction can be regulated, and changes θ value or R value with trace.
By the foregoing description, as can be seen, the utility model has only substituted the constant force mechanisms in the original structure with conjugate cam and has reached relevant sprocket wheel chain etc., can realize the requirement of transfer gripper reciprocally swinging.
In addition, on existing drive unit, can also change original cam 5 (see figure 1)s connectors such as into conjugate cam and corresponding fork, and not cancel former constant force mechanisms etc., the utility model still can be realized the optimal working state, reaches the effect of Fig. 2 device.
The utility model has the advantages that: owing to after having adopted conjugate cam to substitute existing single cam, economize Remove the correlated parts such as balanced controls and sprocket wheel chain, so that whole device is simplified greatly, reduced transmission Link has just reduced systematic error, so that the stationarity of feeding mechanism, precision improve greatly, with The time cost is also descended thereupon, and provide reliable basis to the print speed printing speed that improves machine.
Claims (2)
1, the drive unit of feeding mechanism on a kind of printing machine includes gear, cam, puck, transfer gripper fork and constant force mechanisms is characterized in that: described cam is a conjugate cam (18,19), its cam (18,19) all connects firmly with gear (7), and its cam (18) contacts with puck (20), cam (19) contacts with puck (21), two puck (20,21) is installed on the same fork (3), and the fork between two pucks has the certain value angle theta.
2, by the described drive unit of claim 1, it is characterized in that: one of described two pucks (20,21) are eccentric wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225515 CN2363881Y (en) | 1997-08-29 | 1997-08-29 | Driving device for paper feeding mechanism of printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97225515 CN2363881Y (en) | 1997-08-29 | 1997-08-29 | Driving device for paper feeding mechanism of printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363881Y true CN2363881Y (en) | 2000-02-16 |
Family
ID=33939508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97225515 Expired - Lifetime CN2363881Y (en) | 1997-08-29 | 1997-08-29 | Driving device for paper feeding mechanism of printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363881Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085465A (en) * | 2011-11-04 | 2013-05-08 | 上海光华印刷机械有限公司 | Armature opening and closing mechanism for paper transferring mechanism swinging downward |
| CN105774217A (en) * | 2016-05-05 | 2016-07-20 | 浙江劲豹机械有限公司 | Printing device with delivery gripper bar for fully-automatic screen printing machine |
-
1997
- 1997-08-29 CN CN 97225515 patent/CN2363881Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085465A (en) * | 2011-11-04 | 2013-05-08 | 上海光华印刷机械有限公司 | Armature opening and closing mechanism for paper transferring mechanism swinging downward |
| CN103085465B (en) * | 2011-11-04 | 2014-12-24 | 上海光华印刷机械有限公司 | Armature opening and closing mechanism for paper transferring mechanism swinging downward |
| CN105774217A (en) * | 2016-05-05 | 2016-07-20 | 浙江劲豹机械有限公司 | Printing device with delivery gripper bar for fully-automatic screen printing machine |
| CN105774217B (en) * | 2016-05-05 | 2018-01-05 | 浙江劲豹机械有限公司 | The splicing typesetting and printing brush device of full-automatic screen printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |