CN103057259A

CN103057259A - Pneumatic sheet transfer swing arm mechanism of offset printing press

Info

Publication number: CN103057259A
Application number: CN2013100057787A
Authority: CN
Inventors: 史利花; 王西珍; 李廷峪; 韩红风; 石瑞瑞; 王丽杰
Original assignee: XINXIANG XINOVO MACHINERY CO Ltd
Current assignee: XINXIANG XINOVO MACHINERY CO Ltd
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2013-04-24

Abstract

The invention discloses a pneumatic sheet transfer swing arm mechanism of an offset printing press. The pneumatic sheet transfer swing arm mechanism comprises a cam and a swing rod, a support is fixed onto a wallboard, an electric cylinder is fixed onto the support, a hinge pin is connected onto a piston rod of the electric cylinder, the piston rod of the electric cylinder can automatically extend and retract in the electric cylinder, a hole of the swing rod is hollowly sleeved on a sheet transfer shaft, two lugs are arranged on the swing rod, a hole is arranged inside each lug, one hole is connected with the piston rod of the electric cylinder by the hinge pin, a toothed shaft is arranged in the other hole and is connected with a toothed roller and a gripper, a toothed cam and another swing rod are fixed to the left end of the toothed shaft, the toothed cam is connected with the wallboard by a fulcrum, and a support shaft is fixed onto the wallboard. The pneumatic sheet transfer swing arm mechanism is simple in structure, problems of loud noise and unstable performance of a machine due to machining errors of parts are avoided, the pneumatic sheet transfer swing arm mechanism is high in automation degree and has a paper skew control function, and the problem of interlocking response lag of certain large-format printing presses is solved.

Description

The pneumatic transfer oscillating arm mechanisms of a kind of offset press

Technical field:

The present invention relates to a kind of pneumatic oscillating-arm mechanism, be specially adapted to use on the paper feeding mechanism of printer.

Background technology:

Shown in the existing feeding mechanism (see figure 1), cam has 4, and Reference numeral is respectively cam 1,1-2,1-3,1-18; Fork has 6, and Reference numeral is respectively fork 4,4-8,4-11,4-13,4-17,4-19; It is respectively roller 5,5-6,5-10,5-15 that roller has 4 Reference numerals; Connecting rod has 3, and Reference numeral is connecting rod 7,7-9,7-12; The feeding mechanism motion principle is, transfer roller 20 band moving cams 1,1-2,1-3 rotates around transfer roller center A together, cam 1 and cam 1-2 are conjugate cam, drive fork 4-11 by roller 5-6 and roller 5-10, connecting rod 7-12, fork 4-13, connecting rod 7-9 motion, thereby driving the fork 4-19 and the 4-17 that are connected swings around center D, driving fork 4 by roller 5 swings around center b, fork 4 drivening rods 7, fork 4-8 moves together, fork 4-8 band moving cam 1-18 swings around transfer center D, by 16 opening and closing of roller 5-15 control grippers, bite-block 14 is housed on the grippers, and grippers is done around transfer center D and is swung, and roller 5-15 drives the compound motion of its tooth closing, its shortcoming is: this mechanism STATEMENT OF FEDERALLY SPONSORED is many, mechanism is complicated, and the cam use is too many, causes the part noise large, and can be because the accumulated error of part processing makes mechanism kinematic unstable.

Summary of the invention:

Task of the present invention is to propose a kind of minimizing mechanism STATEMENT OF FEDERALLY SPONSORED, has avoided the set noise that causes because of part's machining errors large, the pneumatic transfer oscillating arm mechanisms of a kind of offset press of unstable properties.

Task of the present invention is finished like this, the pneumatic transfer oscillating arm mechanisms of a kind of offset press, it comprises cam and fork, it is characterized in that: bearing is fixed on the wallboard, the electricity cylinder is fixed on the bearing, be connected with bearing pin on the electricity cylinder piston rod, the electricity cylinder piston rod can be in electric cylinder automatic telescopic, the hole of fork on the transfer axle, is had two ears by empty set on the fork, one hole is respectively arranged in each ear, hole is connected with electric cylinder piston rod by described bearing pin, the tooth axle is housed in another hole and opens tooth roller and grippers and link to each other, and the left end of tooth axle is fixed with out tooth cam and another fork, open the tooth cam and link to each other with wallboard by fulcrum, back shaft is fixed on the wallboard.

The present invention has following effect: the present invention is simple in structure, avoided the set noise that causes because of part's machining errors large, the problem of unstable properties, and also automaticity is high, and solved the problem that some large format printing machine interlocking reflections lag behind, had the function of control paper sheet askew.

Description of drawings:

Fig. 1 is the structural representation of prior art; Fig. 2 is structural representation of the present invention; Fig. 3 is that Figure 1A is to structural representation.

Prior art drawing explanation: 1, cam, 1-2, cam, 1-3, cam, 1-18, cam, 4, fork, 4-8, fork, 4-11, fork, 4-13, fork, 4-17, fork, 4-19, fork, 5, roller, 5-6, roller, 5-10, roller, 5-15, roller, 7, connecting rod, 7-9, connecting rod, 7-12, connecting rod, 14, bite-block, 16, grippers, 20, transfer roller.

Drawing of the present invention explanation: 21, transfer plate, 22, cylinder, 23, open the tooth cam, 24, back shaft, 25, open the tooth roller, 26, bearing pin, 27, electric cylinder piston rod, 28, electric cylinder, 29, bearing, 30, the tooth axle, 31, fulcrum, 32, wallboard, 4-18 fork, 4-19 fork.

The specific embodiment:

Describe embodiment in detail in conjunction with above accompanying drawing, be fixed on the wallboard 32 referring to Fig. 2 and Fig. 3 bearing 29, electricity cylinder 28 is fixed on the bearing, be connected with bearing pin 26 on the electricity cylinder piston rod 27, the electricity cylinder piston rod can be in electric cylinder automatic telescopic, the hole of fork 4-18 by empty set on transfer axle (center), two ears are arranged on the fork 4-18, one hole is respectively arranged in each ear, a hole is connected with electric cylinder piston rod by described bearing pin, tooth axle 30 is housed in another hole and opens tooth roller 25 and grippers 16 links to each other, the left end of tooth axle is fixed with out tooth cam 23 and fork 4-19, opening the tooth cam links to each other with wallboard 32 by fulcrum 31, back shaft 24 is fixed on the wallboard, position when being used for supporting the tooth cam and being retracted by cylinder 22, fork 4-18 makes it do variable motion around transfer axle center by the electric cylinder piston rod motion on the electric cylinder, thus the control grippers is being held paper in the month and is carried out speed change swing between transfer plate 21 and transfer roller 20.

During work, electric cylinder 28 can be around bearing 29 rotations under electric programme-control, electricity cylinder piston rod 27 can speed change be flexible back and forth in electric cylinder, the action of electricity cylinder piston rod, making bearing pin 26 drive fork 4-19 swings with speed change around fork 4-18 center A, control grippers 16 is being held paper in the month and carrying out the speed change swing between transfer plate 21 and transfer roller 20, linear speed speed equates with the transfer roller linear resonance surface velocity when paper is held at transfer roller 20 places in the month, tooth axle 30, fork 4-19 is along with fork 4-18 swings, open tooth roller 25 and move opening tooth cam 23 curved surfaces, make grippers 16 opening and closing.The electricity cylinder drives opens the tooth cam around fulcrum 31 swings, the control grippers is held paper in the month at the transfer Board position, when paper sheet askew occurring, the pulling of electricity cylinder is opened the tooth cam and is rotated around fulcrum, grippers is opened do not hold paper in the month, thereby realized the motion that paper transmits between transfer plate and transfer roller, and controlled grippers is not held paper in the month when paper sheet askew interlocking.

Claims

1. pneumatic transfer oscillating arm mechanisms of offset press, it comprises cam and fork, it is characterized in that: bearing is fixed on the wallboard, the electricity cylinder is fixed on the bearing, be connected with bearing pin on the electricity cylinder piston rod, the electricity cylinder piston rod can be in electric cylinder automatic telescopic, the hole of fork by empty set on the transfer axle, two ears are arranged on the fork, a hole is respectively arranged in each ear, a hole is connected with electric cylinder piston rod by described bearing pin, the tooth axle is housed in another hole and opens tooth roller and grippers and link to each other, the left end of tooth axle is fixed with out tooth cam and fork, opens the tooth cam and links to each other with wallboard by fulcrum, and back shaft is fixed on the wallboard.