CN2258115Y

CN2258115Y - Adjusting mechanism for gripper roller of printing press

Info

Publication number: CN2258115Y
Application number: CN 96211792
Authority: CN
Inventors: 李小富; 丁生景; 管秀清
Original assignee: Beiren Printing Machinery Co ltd
Current assignee: Beiren Printing Machinery Co ltd
Priority date: 1996-05-30
Filing date: 1996-05-30
Publication date: 1997-07-23
Anticipated expiration: 2006-05-30

Abstract

The utility model relates to an adjusting mechanism for gripper rollers of a printing press, which comprises a gripper cam and a tooth opening roller on a gripper, wherein, the tooth opening roller is controlled by the gripper cam. The utility model is characterized in that the tooth opening roller (11) on the gripper is an eccentric roller; a positioning tool plate (3) is arranged on the roller (11) and is fixedly connected with a lever (4); the standard plane on the lever (4) is parallel to the central line of a hole of the lever (4); the standard plane of the lever is connected with the tool plate (3); the distance between the central line and the standard plane is equal to the radius R of the roller (11); the central shaft (10) of the lever (4) is connected with a gripper (5). The utility model has the advantages that the utility model can conveniently adjust the force of the gripper and the work position of the tooth opening roller. Besides, the utility model has the advantages of simple structure, accuracy and reliability, which is simple and practical no matter in manufacturing installation or in regular work manufacture.

Description

The guiding mechanism of opening and closing roller on the printing machine

The utility model relates to the guiding mechanism of opening the tooth roller on a kind of printing machine.

At present, the general roller guiding mechanism that adopts on the printing machine, be to locate the position of favoring with paper power roller when being zero less than a false cam of cam maximum radius δ value with a radius, what roller adopted is eccentric configuration, the manufacturing of false cam and the location is installed all is cumbersome is especially in the ordinary maintenance of printing machine with operation inconvenience in adjusting.

The purpose of this utility model is, designs a guiding mechanism of opening the tooth roller, by this guiding mechanism, can regulate easily and favore with paper power size, adjusts and opens tooth roller operating position, thereby improve the transmitting accuracy of paper.

The utility model is achieved in that the guiding mechanism of opening and closing roller on a kind of printing machine, include the opening and closing cam, by opening the tooth roller on the opening and closing cam control grippers, it is characterized in that: the tooth roller 11 of opening of grippers is eccentric roller, on roller 11, be placed with a kind of orientation tool plate 3, and with a kind of lever 4 on connect firmly, the datum level of fastening means plate 3 is parallel with the line in lever 4 holes on the described lever 4, and distance equals radius of roller R, and the central shaft of lever 4 links with grippers 5 again.

Further specify below in conjunction with accompanying drawing

Fig. 1 is the utility model schematic diagram;

Fig. 2 is that lever 4 is with respect to angle △ θ schematic diagram of Fig. 1 position rotation.

The tooth roller 11 of opening of seeing the described grippers of Fig. 1 is eccentric roller, there is an eccentric amount e in the cylindrical center and its axle center that are roller, the normal operating conditions of grippers such as the position of Fig. 1, eccentric on the line of centres at center, lever 4 hole, at this moment, roller 11 contacts with the maximum radius R ' max place of cam 8, and the paper-hinging force of grippers 5 satisfies print request.When paper joined between two cylinders, grippers 5 contacted paper gently, but favored with paper power F when being zero, and critical condition has guaranteed that paper correctly transmits, and at this moment, roller 11 contacts with cam on the radius than the low δ value of cam maximum radius.

In order to adjust the installation site of roller exactly, the utility model is furnished with an orientation tool plate 3, the one side of this tool palette is complete plane, and another side is a step surface, the difference in height δ of step equal cam maximum radius R ' max with meet favore with the critical point radius R of paper power when being zero ' poor.Tool palette 3 connects firmly together by screw 2 and lever 4, the datum level of fastening means plate 3 is parallel with the lever hole line of centres on the lever 4, and distance equals roller 11 radius Rs, lever 4 links with roller 11 by axle 12 and screw 1, links with grippers 5 by axle 10 and screw 9, and grippers 5 cooperates with bite-block 6, favore with paper, this covering device all is arranged on the cylinder, rotate with cylinder, and cam 8 is fixed.

When roller 11 rotated with cylinder, along the curve rolling of cam 8, thereby drive lever 4 and grippers 5 were realized the on-off action of grippers 5 around the swing of the center, A hole of lever 4.

When regulating the operating position of roller 11, at first tool palette 3 is pressed the fixed-site of Fig. 1 on lever 4, roller 11 is positioned on the maximum radius R ' max of cam 8, and the off-centre of regulating roller 11 then makes roller 11 and tool palette 3, contact gently, unclamp screw 9 simultaneously, lever 4 and axle 10 are unclamped, regulate grippers 5, make it contact paper gently, tighten screw 9 then; Second step was pressed the fixed-site of Fig. 2 on lever 4 with tool palette 3, roller 11 still is positioned on the maximum radius R ' max of cam 8, and at this moment, lever 4 has rotated an angle △ θ with respect to original position, simultaneously, also drive axle 10 and the grippers 5 △ θ angle that turns clockwise.Bite-block 6 is a rigid body, and spring is equipped with in grippers inside, rotates a △ θ angle at grippers 5 around the center of circle of axle 10, and produces a power of pressing to bite-block 6, promptly favores with paper power F.When the above-mentioned adjustment roller 11 that finishes just can enter normal duty.

The utility model has the advantages that: can regulate easily and favore with paper power size, adjust Open tooth roller operating position, and simple in structure, accurately and reliably, no matter be to produce In the installation, or all very easy, practical in the maintenance of routine work.

Claims

1, the guiding mechanism of opening and closing roller on a kind of printing machine, include the opening and closing cam, by opening the tooth roller on the opening and closing cam control grippers, it is characterized in that: the tooth roller (11) of opening of grippers is eccentric roller, on roller (11), be placed with a kind of orientation tool plate (3), and connect firmly with a kind of lever (4), the datum level of the last fastening means plate (3) of described lever (4) is parallel with lever (4) the hole line of centres, and distance equals roller (11) radius R, and the central shaft (10) of lever (4) links with grippers (5) again.

2, by the described guiding mechanism of claim 1, it is characterized in that: the one side of described tool palette (3) is complete plane, another side is a step surface, and the difference in height δ of step equals cam (8) maximum radius, and (R ' max) favores with the poor of the critical point radius (R ') of paper power when being zero with meeting.

3,, it is characterized in that tool palette (3) connects firmly together by screw (2) and lever (4) by claim 1 or 2 described guiding mechanisms.

4, by claim 1 or 2 described guiding mechanisms, it is characterized in that: described lever (4) links with roller (11) by axle (12) and screw (1), links with grippers (5) by axle (10) and screw (9) again.