CN2261331Y

CN2261331Y - Ink and water supplying mechanism of offset printer

Info

Publication number: CN2261331Y
Application number: CN 96245826
Authority: CN
Inventors: 孙志成
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-06
Filing date: 1996-11-06
Publication date: 1997-09-03
Anticipated expiration: 2006-11-06

Abstract

The utility model belongs to the technical field of a printing machine, particularly an ink and water supplying mechanism of an offset printer. The utility model comprises a cam, rockers, a rubber roller and hinges. The utility model is characterized in that more than three rockers are arranged on the cam; both ends of the rocker are respectively fixedly provided with a bearing, the bearing on one end is arranged in a curved annular groove of the cam, and the bearing on the other end is arranged in an annular groove on the end part of the rubber roller; the middle part of each rocker is fixed on a machine frame through the hinges. The utility model has short driving chain of the rocker, good stressing situation, and long service life of the cam groove and the bearing. Then, the utility model can effectively improve the utilization rate and economic performance of an offset printer.

Description

Offset press string China ink, water mechanism

The utility model belongs to field of printing machinery, particularly relates to string China ink, water mechanism in a kind of offset press.

At present, the string China ink of offset press, water mechanism generally all adopt cam mechanism to make several ink rollers and damping roller in rotation, and play is finished even China ink, water function vertically.The main motion part of cam mechanism is the cam of a band curved groove, drive two rocking bar motions by it, drive the rocking bar motion of several series connection again by these two rocking bars, realize the axial float of ink roller, damping roller, the endplay device of this series connection, first order rocking bar is stressed very big, and this just causes cam path stressed very big, make the preposition bearing of cam path and rocking bar be easy to wearing and tearing, and first order rocking bar is also because of the stressed excessive fracture that produces.

The purpose of this utility model provides a kind of endplay device driving-chain short string China ink, water mechanism, improves the stressing conditions of cam path and rocking bar, and its wearing and tearing are reduced, and increase service life.

The technical solution of the utility model is as follows: a kind of lithographic press string China ink, water mechanism, comprise cam, rocking bar, rubber roll and hinge, it is characterized in that being installed with on the cam rocking bar more than three, the rocking bar two ends are installed with bearing respectively, wherein the bearing of an end is installed in the curvilinear shaped slots of cam, the bearing of the other end is installed in the cannelure of rubber roll end, is fixed on the frame by hinge at each rocking bar middle part.

Advantage of the present utility model is: can alleviate cam path effectively and the wearing and tearing of the bearing that moves in cam path 1.; 2. original rocking bar driving-chain is shortened, improved the stressing conditions of rocking bar, even black effect is greatly increased; 3. because increase the service life of cam and rocking bar, usage ratio of equipment and economic benefit are improved.

Embodiment of the present utility model is explanation in detail in conjunction with the accompanying drawings.

Accompanying drawing 1 is the utility model structural representation I.

Accompanying drawing 2 is the utility model A-A cut-away view.

Accompanying drawing 3 is the utility model B-B cut-away view.

Accompanying drawing 4 is the utility model structural representation II.

As shown in Figure 1, 2, 3, three bearings 8 are installed in the shaped form annular groove 14 of cam 11, each bearing fixing is installed in an end of

rocking bar

1,10,12, the other end of

rocking bar

1,10,12 is installed with bearing 8, bearing 8 is installed in the cannelure 15 of

rubber roll

2,5,13 ends, each rocking bar is fixed on the frame by the hinge 6 at middle part, and

rubber roll

4,9 drives its play vertically by rocking bar 3,7.When cam 11 rotations, can make

rocking bar

1,10,12 along hinge 6 swings by shaped form annular groove 14 and bearing 8, when rocking

bar

1,10,12 swings, because the bearing 8 of

rocking bar

1,10,12 other ends is realized its axial float by the two sides of cannelure 15 in the cannelure 15 of

rubber roll

2,5,13 ends;

Rubber roll

4,9 is realized its axial float by rocking bar 7,9.

Accompanying drawing 4 is example II of the present utility model, during its motion process cam 11 rotations, drive is installed in the interior bearing 8 of shaped form annular groove along cam 11 axial wobbles,

drive rubber roll

2,5,13 along its axial float by rocking

bar

10,12,16 along hinge 6 swings,

rubber roll

2,4 drives its play vertically by rocking bar 3,7.

Claims

1. an offset press string China ink, water mechanism, comprise cam, rocking bar, rubber roll and hinge, it is characterized in that being equipped with on the cam (11) rocking bar (1), (10), (12) more than three, the two ends of rocking bar (1), (10), (12) are installed with bearing (8) respectively, wherein the bearing of an end (8) is installed in the shaped form annular groove (14) of cam (11), the bearing of the other end (8) is installed in the cannelure (15) of rubber roll (2), (5), (13) end, is fixed on the frame by hinge (6) at each rocking bar middle part.