A kind of paper feeding registration device and method of work thereof
(1) technical field:
The present invention is applicable to printing machinery, is particularly useful for utilizing the belt platform to carry out the equipment that sheet-fed is carried and located.
(2) background technology:
Printing equipment is carrying out conveying and the location work that first being processed all can be carried out paper to sheet-fed.The paper feeding registration device of prior art as shown in Figure 1 and Figure 2, paper is transported to the location, preceding rule 1 place of having lifted under the combined action of defeated paper platform paper pressing device 10 and defeated paper platform belt; In 1 pair of paper prelocalization of preceding rule process, utilize side mark 9 to finish the side location simultaneously; Side mark 9 lifts afterwards, and preceding rule 1 bottom is to platform, and pressure roller 3 presses down with feed rollers 4 combineds action paper sheet delivery to strippers 7, so just finishes paper location and course of conveying.There is following shortcoming in this kind locate mode: after 1. paper was located through preceding rule side mark, the power instability when pressing down owing to pressure roller tilted paper again; 2. the preceding rule of this detent mechanism take than large space below platform, and rule are to the distance between the strippers before causing, and the distance of paper and pressure roller and strippers strengthens, and produces sheet wander in handshaking; 3. this detent mechanism is before finishing after the one-time positioning, carries fully at paper just to begin upwards swing when finishing, and rule baffle plate scratch back side of paper can cause the scuffing of back side of paper before making, increases the fraction defect of product; 4. rule are finished paper location before, and the bottom is after below the platform fully, and paper feeding point wheel just begins to press down, this section in the period paper be not subjected to any control, can make the paper generation double offset of having located.
(3) summary of the invention:
The object of the invention is to design a kind of paper feeding registration device and method of work thereof, it can solve the deficiencies in the prior art, it is by the locate mode of rule before changing, rule are to the scuffing of paper before can avoiding, cooperate structures realizations such as existing side mark, some wheel, strippers to conveying and the location of paper again, realize the accurate location of paper, improve the precision of postorder processing.
Technical scheme of the present invention: a kind of paper feeding registration device comprises preceding rule, pressure roller, feed rollers, delivery platform and side mark; It is characterized in that described preceding rule are installed on the front upper place of pressure roller.
Rule link to each other with the servomotor that the preceding rule of control swing up and down down before described; Rule fall paper are carried out prelocalization work before under the positioning states, and pressure roller lifts; Rule are lifted before under the paper feeding state, and pressure roller falls and the paper feeding of feed rollers friction of rolling.
Described pressure roller links to each other with cam by connecting rod; Described cam connects propulsion source, and cam rotates the up-and-down movement of control pressure roller; Described connecting rod and spring one end are fixed, and the other end is fixed on frame or the static relatively part; Described side mark is positioned on the delivery platform; Described pressure roller is positioned on the delivery platform, the place ahead of side mark; Described feed rollers is positioned at the below of pressure roller, and the axial connecting line of pressure roller and feed rollers is vertical with delivery platform under the paper feeding state.
The place ahead of rule is installed the paper of having good positioning is taken over the strippers that is delivered to next station before described.
On the described delivery platform by the belt conveyor conveyance of sheets; There is paper pressing device described paper top.
A kind of method of work of paper feeding registration device is characterized in that comprising following algorithm:
(1) paper travels forward at delivery platform under the effect of belt conveyor;
(2) during paper moved ahead process, when moving to the side mark place, side mark carried out the side location to it;
(3) paper continues to move ahead behind the side location, and feeding device carries out prelocalization to the position location to paper at the effect lower swing of servomotor;
(4) after prelocalization was finished, pressure roller was pushed down the paper of having good positioning at the control lower swing of camming movement, and preceding rule are upwards put under the control of servomotor.
Paper moves forward to next station under the effect of strippers in the described step (4).
Preceence of the present invention is: 1, feeding device can make reducing of distance between paper location back and the strippers above platform, has reduced the error that paper produces in the handshaking in course of conveying, thereby has improved precision; 2, preceding rule are controlled with servomotor, the precision height, be easy to control; 3, preceding rule are to relocate a piece of paper down when the paper tail of paper is crossed locating point, can not scratch paper in the process; 4, paper is in by zero accelerator, and pressure roller and preceding rule are moved simultaneously, paper can and the continuation of preceding rule break away from preceding the rule after contact a period of time, the accuracy of positioning of paper can not lose.
(4) description of drawings:
Fig. 1 is the structural representation of the related paper feeding registration device of prior art under positioning states.
Fig. 2 is the structural representation of the related paper feeding registration device of prior art under the paper feeding state.
Fig. 3 is the structural representation of the related a kind of paper feeding registration device of the present invention under positioning states.
Fig. 4 is the structural representation of the related a kind of paper feeding registration device of the present invention under the paper feeding state.
Wherein: 1 is preceding rule, and 2 is paper, and 3 is pressure roller, and 4 is feed rollers, and 5 is cam, and 6 is spring, and 7 is strippers, and 8 is delivery platform, and 9 is side mark, and 10 is paper pressing device.
(5) specific embodiment:
Embodiment: a kind of paper feeding registration device (seeing Fig. 3, Fig. 4), rule 1, pressure roller 3, feed rollers 4, delivery platform 8 and side mark 9 before comprising; It is characterized in that described preceding rule 1 are installed on the front upper place of pressure roller 3.
Rule 1 link to each other with the servomotor that the preceding rule of control swing up and down for 1 time before described; Rule 1 fall paper are carried out prelocalization work before under the positioning states, and pressure roller 3 lifts (see figure 3); Rule 1 are lifted before under the paper feeding state, and pressure roller 3 falls and feed rollers 4 friction of rolling paper feeding (see figure 4)s.
Described pressure roller 3 links to each other with cam 5 by connecting rod; Described cam 5 connects propulsion source, and cam 5 rotates the up-and-down movement of control pressure roller 3; Described connecting rod and spring 6 one ends are fixed, and the other end is fixed on the frame; Described side mark 9 is positioned on the delivery platform 8; Described pressure roller 3 is positioned on the delivery platform 8, the place ahead of side mark 9; Described feed rollers 4 is positioned at the below of pressure roller 3, and the axial connecting line of pressure roller 3 and feed rollers 4 is vertical with delivery platform 8 under the paper feeding state.(seeing Fig. 3, Fig. 4)
The place ahead of rule 1 is installed the paper of having good positioning is taken over the strippers 7 that is delivered to next station before described.(seeing Fig. 3, Fig. 4)
On the described delivery platform 8 by belt conveyor conveyance of sheets 2; There is paper pressing device 10 described paper 2 tops.(seeing Fig. 3, Fig. 4)
A kind of method of work of paper feeding registration device is characterized in that comprising following algorithm:
(1) paper 2 travels forward at delivery platform 8 under the effect of belt conveyor;
(2) during paper 2 moved ahead process, when moving to side mark 9 places, side mark 9 carried out the side location to it;
(3) paper 2 continues to move ahead behind the side location, and feeding device 1 carries out prelocalization to the position location to paper 2 at the effect lower swing of servomotor;
(4) after prelocalization was finished, pressure roller 3 was pushed down the paper 2 of having good positioning at the control lower swing of camming movement, and preceding rule 1 are upwards put under the control of servomotor.
Paper 2 moves forward to next station under the effect of strippers 7 in the described step (4).