CN202368057U - Tooth on-off mechanism for downward swing type sheet transfer mechanism - Google Patents
Tooth on-off mechanism for downward swing type sheet transfer mechanism Download PDFInfo
- Publication number
- CN202368057U CN202368057U CN2011204345402U CN201120434540U CN202368057U CN 202368057 U CN202368057 U CN 202368057U CN 2011204345402 U CN2011204345402 U CN 2011204345402U CN 201120434540 U CN201120434540 U CN 201120434540U CN 202368057 U CN202368057 U CN 202368057U
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- cam
- swing
- transfer
- swing link
- side wallboard
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Abstract
The utility model discloses a tooth on-off mechanism for a downward swing type sheet transfer mechanism. The mechanism comprises a sheet transfer hand, a driving mechanism, a driven mechanism and a stop mechanism, wherein the sheet transfer hand comprises an engaging shaft and a tooth on-off ball which is connected to a transmission end of the engaging shaft; a driving gear of the driving mechanism and a sheet transfer tooth control cam are fixedly arranged on a transmission shaft; a pair of swing rods of the driven mechanism are fixedly arranged on a swing arm shaft; ends of the pair of swing rods are respectively engaged on the peripheral surfaces of a principal curve and a conjugate curve of the sheet transfer tooth control cam; a swing rod cam comprises a main body part and a tail rod part and is fixedly arranged on a mounting shaft; a curve groove is formed on an inner side face of the main body part of the swing rod cam, so that the tooth on-off ball is embedded in the curve groove in a rolling mode; a swing arm is fixedly arranged on the swing arm shaft, and the end of the swing arm is engaged on a peripheral surface of the main body part of the swing rod cam; and the stop mechanism comprises a protection cylinder which is arranged on an inner side face of a wallboard on a transmission side and a stop block which is connected to an end of a piston rod of the protection cylinder.
Description
Technical field
The utility model relates to a kind of opening and closing mechanism that is used for sway downward paper feeding mechanical.
Background technology
Common Web transfer apparatus mainly contains three kinds in the offset press at present: swing type, rotary and override type Web transfer apparatus.The function of Web transfer apparatus is the paper leading edge with accurate positioning on the defeated paper platen, sends sheet transfer drum or impression cylinder to and gets into the roll extrusion printing.This transfer mode is called indirect transfer.Be to be delivered to sheet transfer drum to paper from defeated cardboard.After the location, rule place, paper remains static before paper is being failed cardboard, and in order to guarantee chromatography precision, the transfer gripper of feeding mechanism also will splicing under the state of absolute rest.For high-speed press, the time of the transfer gripper of feeding mechanism splicing under static state is short more, and chromatography precision cannot say for sure to demonstrate,prove more.Rotary feeding mechanism is that transfer gripper is installed on the sheet transfer drum and with sheet transfer drum and makes continuous uniform motion, and transfer gripper is done the oscillating motion of self on cylinder, its sheet transfer drum complex structure, and cost is higher.And because the sheet transfer drum rotary speed is higher, it is shorter in defeated paper platen place's splicing time, is difficult to guarantee chromatography precision.The override type feeding mechanism is that the final location with paper is placed on the impression cylinder, paper through defeated paper platen pre-determined bit after, quicken (being slightly larger than the superficial velocity of impression cylinder) again and rest in preceding rule place on the impression cylinder and republish after positioning.But the paper feed route is long before its printing, influences the lifting of print speed printing speed during thin paper.Swinging gripper mechanism can fast return be failed cardboard after passing to sheet transfer drum to paper, have the more time to guarantee the accurate splicing under the fast state like this, has satisfied the chromatography precision under the printing machine fast state.
Swinging gripper mechanism has two kinds of forms again, promptly goes up pendulum-type feeding mechanism and sway downward paper feeding mechanical.Most widely used in the offset press at present is sway downward paper feeding mechanical.Sway downward paper feeding mechanical is grited one's teeth for the static paper that will have good positioning at preceding rule place passes to sheet transfer drum steadily, exactly, and feeding mechanism must possess following basic demand: the 1. static paper of getting, 2. steadily quicken, and 3., 4. steadily return with the speed handing-over.Sway downward paper feeding mechanical comprises the transfer hand and in the cover that the end of transfer hand the is installed mechanism of gritting one's teeth.The on-off action of gritting one's teeth is by action control and that cooperate the transfer hand of swing arm driving groove cam, in the action of getting paper and paper feeding, paper is steadily joined.
Also be provided with a cover stop mechanism in the existing sway downward paper feeding mechanical.When the paper at rule place before the defeated cardboard occurs locating inaccurate or paper defectiveness; This stop mechanism can be controlled transfer gripper and in the time will arriving defeated cardboard place, be in open configuration; Paper will be retained on the defeated cardboard, and can not passed to sheet transfer drum, thereby avoid useless opening to produce by the transfer hand; Effectively conserves paper cuts the waste.Yet existing stop mechanism is installed in the eccentric bushing of the pivot of grooved cam usually by motor, gear or cylinder transmission, makes the pivot of grooved cam eccentric, thereby makes the transfer gripper that flexibly connects with grooved cam stop closing.This stop mechanism complex structure, and then influenced stable action property.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of prior art; A kind of opening and closing mechanism that is used for sway downward paper feeding mechanical is provided; It has the steady handing-over that in high speed printing, can make paper, when abnormal conditions appear in the paper on defeated cardboard, can avoid useless opening to produce; Effectively conserves paper cuts the waste.
The technical scheme that realizes above-mentioned purpose is: a kind of opening and closing mechanism that is used for sway downward paper feeding mechanical; Comprise the transfer hand; Driving mechanism; Follower; Said transfer hand comprises the transmission side wallboard that is connected across said offset press and the transfer main shaft between the fore side wallboard; Be connected the bite-block installing plate on the transfer main shaft and the axle of gritting one's teeth through a pair of transfer brace; A plurality of compartment of terrains are installed in the bite-block on the bite-block installing plate; A plurality ofly be sleeved on that the axle of gritting one's teeth is gone up and the transfer gripper and corresponding with bite-block is connected the opening and closing ball of the through-drive end of gritting one's teeth; Said opening and closing mechanism also comprises a stop mechanism; Wherein
Said driving mechanism comprises a driving gear and transfer gripper control cam, and said driving gear and said transfer gripper control cam are fixed together and are packed on the power transmission shaft; Said transfer gripper control cam is made up of main cam and the auxiliary cam that outer peripheral face is conjugate curves;
Said follower comprises a pair of fork, a swing arm and a swing link cam, and said a pair of fork is packed on the arm shaft, and the termination of this a pair of fork coincide respectively on the outer peripheral face of the main cam of said transfer gripper control cam and auxiliary cam; Said swing arm is installed on the said arm shaft through said transmission side wallboard inboard; Said swing link cam comprises that a main part and is connected the afterbody of pivot; This swing link cam is packed on the installation shaft; The outer peripheral face of the main part of this swing link cam and the termination of said swing arm coincide; Offer a curved groove on the medial surface of the main part of this swing link cam, so that said opening and closing ball rollably is embedded in this curved groove;
Said stop mechanism comprises that one is installed in the scotch of termination that protection cylinder and on the medial surface of said transmission side wallboard is connected the piston rod of protection cylinder, and this scotch is installed in rotation on the medial surface of said transmission side wallboard;
When the main part of said swing link cam will swing to the extreme higher position; The piston rod of said protection cylinder stretches out; Said scotch is replaced in the termination of the afterbody of said swing link cam, so that separate with the outer peripheral face of the main part of swing link cam the termination of said swing arm.
The above-mentioned opening and closing mechanism that is used for sway downward paper feeding mechanical, wherein, the termination of the afterbody of said swing link cam also is connected with the stage clip that is sleeved on the stage clip guide rod, and the other end of this stage clip is fixed on the said transmission side wallboard through a mounting blocks.
The above-mentioned opening and closing mechanism that is used for sway downward paper feeding mechanical, wherein, the curved groove on the said swing link cam is an arc groove.
The above-mentioned opening and closing mechanism that is used for sway downward paper feeding mechanical, wherein, said power transmission shaft passes said transmission side wallboard and is installed in one through bearing and is fixed on the bracing frame in the said transmission side wallboard outside; Said installation shaft is installed in the inboard of said transmission side wallboard through bearing, so that said swing link cam and said swing arm are positioned at the inboard of said transmission side wallboard accordingly.
The above-mentioned opening and closing mechanism that is used for sway downward paper feeding mechanical, wherein, the termination of said a pair of fork and said swing arm is installed a roller respectively.
The technical scheme of the opening and closing mechanism that is used for sway downward paper feeding mechanical of the utility model, transfer gripper control cam design is a conjugate form.Cam mechanism forms how much sealings, rather than force-closed, thus the vibrations when having reduced high-speed cruising, it is more steady that transfer gripper is opened and closed, and the paper handing-over is stable more, accurately and reliably, adapts to high speed printing.In addition, also adopt a stop mechanism that constitutes by protection cylinder and scotch.When the paper on the defeated cardboard occurs locating inaccurate or paper defectiveness; This stop mechanism can be controlled transfer gripper and in the time will arriving defeated cardboard place, be in open configuration; Paper will be retained on the defeated cardboard, and can not passed to sheet transfer drum, thereby avoid useless opening to produce by the transfer hand; Effectively conserves paper cuts the waste.This stop mechanism is simple in structure, and stable action is reliable.The curved groove of swing link cam is designed to arc groove, makes easy to process.
Description of drawings
Fig. 1 is the profile of the opening and closing mechanism that is used for sway downward paper feeding mechanical of the utility model;
Fig. 2 is the side view of the opening and closing mechanism that is used for sway downward paper feeding mechanical of the utility model;
Fig. 3 a is the structural representation of the opening and closing mechanism swing link cam that is used for sway downward paper feeding mechanical of the utility model;
Fig. 3 b is that the B of Fig. 3 a is to view;
Fig. 3 c is that the A-A of Fig. 3 a is to cutaway view.
The specific embodiment
In order to understand the technical scheme of the utility model better, below through concrete embodiment and combine accompanying drawing to be elaborated:
See also Fig. 1 and Fig. 2, a kind of opening and closing mechanism that is used for sway downward paper feeding mechanical of the utility model comprises transfer hand, driving mechanism, follower, bracing frame 30 and stop mechanism.
Bracing frame 30 be connected offset press transmission side wallboard 20 the outside and have one be parallel to transmission side wallboard 20 rear stay plate;
The transfer hand comprises the transmission side wallboard 20 that is connected across offset press and the transfer main shaft 1 between the fore side wallboard, is connected the bite-block installing plate 13 on the transfer main shaft 1 and the axle 14 of gritting one's teeth, a plurality of compartment of terrain are installed in bite-block 130 on the bite-block installing plate 13, a plurality ofly are sleeved on the axle 14 of gritting one's teeth and are connected the opening and closing ball 141 of 14 driving end of gritting one's teeth with bite-block 130 corresponding transfer grippers 140 and through a pair of transfer gripper brace 11,12; The transmission side axle journal of transfer main shaft 1 passes transmission side wallboard 20 and is installed on the rear stay plate of bracing frame 30 through bearing.The transfer hand is realized the expection swing by another set of driving mechanism transmission.
Driving mechanism comprises a driving gear 2 and transfer gripper control cam 3; Wherein, Driving gear 2 and transfer gripper control cam 3 are fixed together and are packed on the power transmission shaft 4, and this power transmission shaft 4 is connected across between the rear stay plate of transmission side wallboard 20 and bracing frame 30 through bearing; Driving gear 5 is by the main motor-driven of offset press; Transfer gripper control cam 3 is made up of main cam and the auxiliary cam that outer peripheral face is conjugate curves;
Follower comprises a pair of fork 5,6, a swing arm 8 and a swing link cam 7, wherein:
A pair of fork 5,6 is packed on the arm shaft 9, and this arm shaft 9 is connected across between the rear stay plate of transmission side wallboard 20 and bracing frame 30 through bearing; The termination of this a pair of fork 5,6 is separately installed with roller and coincide respectively on the outer peripheral face of the main cam of transfer gripper control cam 3 and auxiliary cam.
Swing link cam 7 (seeing Fig. 3 a to Fig. 3 c) comprises that a main part 71 and is connected the afterbody 72 of pivot; This swing link cam 7 is packed on the installation shaft 70; This installation shaft 70 is installed in the inboard of transmission side wallboard 20 through bearing, so that swing link cam 7 and swing arm 8 are positioned at the inboard of transmission side wallboard 20 accordingly; The termination of the outer peripheral face of the main part of this swing link cam 7 and swing arm 8 coincide; Offer a curved groove 710 on the medial surface of the main part 71 of this swing link cam 7, so that opening and closing ball 141 rollably is embedded in this curved groove 710; The termination of the outer peripheral face of this swing link cam 7 also is provided with a boss 73, and the termination roller of swing arm 8 is coincide on this boss 73 upper surfaces; The stage clip 31 that the termination of afterbody 72 and is sleeved on the stage clip guide rod 32 is connected, and the other end of this stage clip 31 is connected on the mounting blocks 33, and this mounting blocks 33 is fixed on the medial surface of transmission side wallboard 20.
Stop mechanism comprises a protection cylinder 40 and a scotch 41; Protection cylinder 40 is installed in the inboard of transmission side wallboard 20; Scotch 41 is connected the termination of the piston rod of this protection cylinder 40, and this scotch 41 is through on one 42 medial surface that is rotatably connected to transmission side wallboard 20.
When the main part of swing link cam 7 will swing to the extreme higher position, the piston rod of protection cylinder 40 stretched out, and scotch 41 is replaced in the termination of the afterbody of swing link cam 7, so that separate with the outer peripheral face of the main part of swing link cam 7 termination of swing arm 8.
A kind of operation principle that is used for the opening and closing mechanism of sway downward paper feeding mechanical of the utility model is:
The main drive of motor driving gear 2 of offset press and transfer gripper control cam 3; The outer peripheral face of the main cam of transfer gripper control cam 3 and the outer peripheral face of auxiliary cam drive a pair of fork 5,6 respectively; This a pair of fork 5,6 drives arm shaft 9 through key again and realizes the expection swing; Realize the expection swing through the swing arm 8 driving pendulum rod cams 7 that are packed on the arm shaft 9 again; Swing link cam 7 and the effect of swing arm 8 through stage clip 31, formation is force-closed down at normal printing state, boss 73 upper surfaces that make swing link cam 7 terminations all the time with swing arm 8 on roller contact.
When the transfer hand swings to defeated cardboard 50 places, keeps static and stop slightly, main part 71 counter clockwise directions of swing link cam 7 are swung to the extreme higher position by low level at this moment; Thereby opening and closing ball 141 is driven grit one's teeth axle 14 and drive transfer gripper 140 and bite-block 130 closed and bite the paper on the defeated cardboard 50; Paper is stung in realization, and the transfer hand quickens to the sheet transfer drum swing, in this process again; The main part 71 maintenance extreme higher positions of swing link cam 7 that is to say that transfer gripper 140 keeps stinging the paper state.When the transfer hand swings to the position of sheet transfer drum; Keep with speed with sheet transfer drum; This moment swing link cam 7 main part 71 clockwise by the extreme higher position to lower swing, thereby make opening and closing ball 141 drive the axle 14 of gritting one's teeth, and drive transfer gripper 140 and open; Paper passes to sheet transfer drum from the transfer hand, realizes the normal handing-over of paper.After handing-over was accomplished, paper was along with the printing element that rotates into of sheet transfer drum, and after this, the transfer hand continues the bottom and slowly slows down, and stops until swinging to bottom, steadily returns defeated cardboard 50 places subsequently again, waits for and gets paper next time.
And when the location abnormal conditions appear in paper at defeated cardboard 50 places, the control stop mechanism action of the control system of offset press will be promptly when the main part 71 of swing link cam 7 counterclockwise will swing to the extreme higher position by low level; The piston rod of protection cylinder 40 stretches out and drives scotch 41 and rotate, make on the scotch 41 seam just in time with the termination seam clamping of swing link cam 7 afterbodys 72, stop the main part 71 of swing link cam 7 to continue to swing to the extreme higher position; So that the termination roller of swing arm 8 separates with boss 73 upper surfaces of the main part 71 of swing link cam 7; In the stroke of highest point (defeated cardboard 50) swing, the main part 71 of swing link cam 7 is in low level at the transfer hand, even the transfer hand swings to when failing cardboard 50 places; Transfer gripper 140 also is in open configuration; Paper will be retained on the defeated cardboard 50, and can not passed to sheet transfer drum by the transfer hand, thereby avoid useless opening to produce; Effectively conserves paper cuts the waste.After eliminating abnormal conditions, the piston rod retraction of protection cylinder 40, swing link cam 7 continues the swing of expection again.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the utility model; And be not the qualification that is used as the utility model; As long as in the connotation scope of the utility model, all will drop in claims scope of the utility model variation, the modification of the above embodiment.
Claims (5)
1. opening and closing mechanism that is used for sway downward paper feeding mechanical; Comprise the transfer hand; Driving mechanism; Follower; Said transfer hand comprises the transmission side wallboard that is connected across said offset press and the transfer main shaft between the fore side wallboard; Be connected the bite-block installing plate on the transfer main shaft and the axle of gritting one's teeth through a pair of transfer brace; A plurality of compartment of terrains are installed in the bite-block on the bite-block installing plate; A plurality ofly be sleeved on that the axle of gritting one's teeth is gone up and the transfer gripper and corresponding with bite-block is connected the opening and closing ball of the through-drive end of gritting one's teeth; It is characterized in that; Said opening and closing mechanism also comprises a stop mechanism
Said driving mechanism comprises a driving gear and transfer gripper control cam, wherein,
Said driving gear and said transfer gripper control cam are fixed together and are packed on the power transmission shaft;
Said transfer gripper control cam is made up of main cam and the auxiliary cam that outer peripheral face is conjugate curves;
Said follower comprises a pair of fork, a swing arm and a swing link cam, wherein,
Said a pair of fork is packed on the arm shaft, and the termination of this a pair of fork coincide respectively on the outer peripheral face of the main cam of said transfer gripper control cam and auxiliary cam;
Said swing arm is installed on the said arm shaft through said transmission side wallboard inboard;
Said swing link cam comprises that a main part and is connected the afterbody of pivot; This swing link cam is packed on the installation shaft; The outer peripheral face of the main part of this swing link cam and the termination of said swing arm coincide; Offer a curved groove on the medial surface of the main part of this swing link cam, so that said opening and closing ball rollably is embedded in this curved groove;
Said stop mechanism comprises that one is installed in the scotch of termination that protection cylinder and on the medial surface of said transmission side wallboard is connected the piston rod of protection cylinder, and this scotch is installed in rotation on the medial surface of said transmission side wallboard;
When the main part of said swing link cam will swing to the extreme higher position; The piston rod of said protection cylinder stretches out; Said scotch is replaced in the termination of the afterbody of said swing link cam, so that separate with the outer peripheral face of the main part of swing link cam the termination of said swing arm.
2. the opening and closing mechanism that is used for sway downward paper feeding mechanical according to claim 1; It is characterized in that; The termination of the afterbody of said swing link cam also is connected with the stage clip that is sleeved on the stage clip guide rod, and the other end of this stage clip is fixed on the said transmission side wallboard through a mounting blocks.
3. the opening and closing mechanism that is used for sway downward paper feeding mechanical according to claim 1 is characterized in that the curved groove on the said swing link cam is an arc groove.
4. the opening and closing mechanism that is used for sway downward paper feeding mechanical according to claim 1 is characterized in that,
Said power transmission shaft passes said transmission side wallboard and is installed in one through bearing and is fixed on the bracing frame in the said transmission side wallboard outside;
Said installation shaft is installed in the inboard of said transmission side wallboard through bearing, so that said swing link cam and said swing arm are positioned at the inboard of said transmission side wallboard accordingly.
5. the opening and closing mechanism that is used for sway downward paper feeding mechanical according to claim 1 is characterized in that the termination of said a pair of fork and said swing arm is installed a roller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204345402U CN202368057U (en) | 2011-11-04 | 2011-11-04 | Tooth on-off mechanism for downward swing type sheet transfer mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204345402U CN202368057U (en) | 2011-11-04 | 2011-11-04 | Tooth on-off mechanism for downward swing type sheet transfer mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202368057U true CN202368057U (en) | 2012-08-08 |
Family
ID=46591777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204345402U Withdrawn - After Issue CN202368057U (en) | 2011-11-04 | 2011-11-04 | Tooth on-off mechanism for downward swing type sheet transfer mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202368057U (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 |
-
2011
- 2011-11-04 CN CN2011204345402U patent/CN202368057U/en not_active Withdrawn - After Issue
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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20141224 |
|
| RGAV | Abandon patent right to avoid regrant |