JPH04470B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a new printing machine devised to finely adjust the forward and backward movement of the ink fountain key through manual movement of the fulcrum, electric fine adjustment, and manual fine adjustment. The object of the present invention is to provide a split ink bottle keying device in a machine body 7, in which a fulcrum holder 1 is provided at a position behind each ink bottle key 8 in a machine body 7 so as to be able to move forward and backward, but not to rotate.
3, a female screw 14 drilled in the rear end surface of the fulcrum holder 13, and a zero point adjustment screw shaft 15 whose front end is screwed onto the female screw 14 and supported on the fuselage 7 so as to be rotatable but not forward or backward. , a dial knob 2 whose rear end of the zero point adjustment screw shaft 15 protrudes outside the fuselage 7 and is fixed to the protruding end.
8, a female threaded pipe 16 provided below the fulcrum holder 13 in the fuselage 7 so as to be rotatable but unable to move forward or backward, and a screw shaft 17 for fine adjustment screwed into the female threaded pipe 16. , a first driven gear 34 provided at the rear end of the female threaded pipe 16, and a driving side gear 35 rotated by a motor 36, which is rotatably supported on the body 7 in a state where it always meshes with the first driven gear 34.
and a link 18 whose base end is rotatably supported on the front end of the fulcrum holder 13 so as to be swingable in the front-rear direction, and whose rear surface of the free end is always pressed against the front end surface of the screw shaft 17 for fine adjustment by a spring 22. Then, a transmission device is attached to the base end of the link 18 to reduce the swing amount of the free end of the link 18 and transmit it to the ink fountain key 8 as an advance/retreat amount, and a rear end of the screw shaft 17 for fine adjustment is attached to the outside of the machine body 7. A manual knob 29 protrudes from the protruding end and is attached to the protruding end so as to be non-rotatable and movable forward and backward by a key 30 and a forward return spring 31, and a manual knob 29 is attached to the inner end of the manual knob 29 when the manual knob 29 is free of hand. A gear wheel which is engaged with the driving gear 35 and is disengaged from the driving gear 35 when the knob 29 is pulled out against the return spring 31 is disengaged from the driving gear 35, and which has a different number of teeth than the first driven gear 34. 2 driven gears 33.

In the first embodiment shown in FIGS. 1 to 3, the front surface is surrounded by an ink fountain roll 1, the left and right sides are surrounded by a pair of side blocks 2, 2', and the rear and bottom surfaces are surrounded by an inclined bottom plate 3. Moreover, a funnel-shaped ink fountain 6 having an ink delivery slit 5 formed between the front edge 4 of the bottom plate 3 and the outer peripheral surface of the ink fountain roll 1 is constructed on the body 7, and a funnel-shaped ink fountain 6 is constructed on the body 7. a large number of ink fountain keys 8 whose tips traverse the lower surface of the ink delivery slit 5 in close contact with the front edge of the bottom plate 3 and contact the outer circumferential surface of the ink fountain roll 1; A base plate part 9 and a presser plate 10 are provided for sandwiching the ink fountain key 8 in a state where it can be moved from above and below in a state where it can be moved near and far and in contact. A fulcrum holder 13 that moves forward and backward is non-rotatably equipped above the rear part of each ink fountain key 8, and a female screw 14 is drilled at the rear end of this fulcrum holder 13.
4 to the front end of the screw shaft 15 for zero point adjustment, and hold the female threaded pipe 16 at a lower position at the rear of each ink fountain key 8 so as to be rotatable but not movable back and forth. A screw shaft 17 for fine adjustment that moves forward and backward is screwed into a state in which both front and rear ends protrude, and a link 18 is arranged between the fulcrum holder 13 and the front ends of the screw shaft 17 for fine adjustment so as to face up and down. The base end of the link 18 is supported on the fulcrum holder 13 by the fulcrum shaft 19 so as to be able to swing freely in the front and back direction, and the rear surface of the free end of the link 18 is also attached to the front end surface of the screw shaft 17 for fine adjustment with the stopper 20 and the first A spring that constantly brings the ink fountain key 8 into pressure contact with the front surface of the middle portion of the link 18 via the idler ring 21 by a pusher composed of a spring 22 and a guide bush 23, and also brings the rear end surface of the ink fountain key 8 into constant pressure contact with the front surface of the intermediate portion of the link 18 through the second idler ring 24. 25 is engaged with the same ink fountain key 8 via the spring receiver 26, and furthermore, the rear ends of the above-mentioned zero point adjustment screw shaft 15 and fine adjustment screw shaft 17 are protruded outside the body 7, and this zero point Dial knob 2 with a scale on the outer end of the adjustment screw shaft 15
Screw shaft 17 for fixing 8 and fine adjustment
A manual knob 29 is attached to the outer end of the key 30 and a forward return spring 31 so as to be non-rotatable and movable back and forth, and one tooth is attached to the inner end of the manual knob 29 and the outer end of the female threaded pipe 16. Alternatively, two driven gears 33, 34, which differ in number up to several teeth, are integrally provided in a state facing each other, and these driven gears 33, 34 are meshed together with one driving gear 35 supported on the machine body 7. The driven gear 33 integrated with the knob 29 is configured to be detached from the driving gear 35 when the manual knob 29 is pulled against the return spring 31, and the driven gear 33 is attached to the fuselage 7.
5, and a potentiometer 37 that sends the opening amount data of the ink fountain key 8 to the total control operation device, and transmits the driving side gear 35, the electric motor 36, and the potentiometer 37. In the second embodiment shown in FIG. 4, the amount of oscillation of the link 18 is reduced by an eccentric cam 40 integrally provided at the base end of the link 18. This is what I did.

That is, in the above embodiment, the forward and backward movement of the ink fountain key 8 is finely adjusted by manual fulcrum movement using the dial knob 28 and fine adjustment using the electric motor 36.

Since the present invention is as described above, it is possible to easily and easily perform fine adjustment of forward and backward movement of the ink fountain key by manual movement of the fulcrum, electric fine adjustment, and manual fine adjustment. For example, when setting the potentiometer to the zero position by setting the gap between the ink fountain roll and the ink fountain key to zero, it is necessary to perform a pulling and twisting operation on the manual knob. Not only is it convenient because it can be done by hand, but it is also practical because the manual knob is structured to give a slight movement to the ink fountain key through the vibration of the link. It is effective.

[Brief explanation of drawings]

The figures show an embodiment of a divided ink fountain key device in a printing press according to the present invention, in which FIG. 1 is a partially cutaway plan view showing the whole of the first embodiment, and FIG. 2 shows the main parts. An enlarged front view, FIG. 3 is a sectional view taken along line A-A in FIG. 2, and FIG. 4 is a sectional view of a portion corresponding to line A-A in FIG. 2, showing the second embodiment. . 1... Ink fountain roll, 2, 2'... Side block, 3... Bottom plate, 4... Front edge, 5...
...Delivery slit, 6...Ink pot, 7...Flexible body,
8... Ink fountain key, 9... Base plate, 10... Holding plate, 13... Fulcrum holder, 14... Female screw,
15... Screw shaft for zero point adjustment, 16...
... Female threaded pipe, 17 ... Screw shaft for fine adjustment, 18 ... Link, 19 ... Fulcrum shaft, 20 ...
Cash, 21...first play ring, 22...spring,
23...Guide bushing, 24...Second play ring, 2
5... Spring, 26... Spring holder, 28... Dial knob, 29... Manual knob, 30... Key, 31... Return spring, 33, 34... Driven gear, 35... Driving side gear, 36 ...Electric motor, 3
7... Potentiometer, 38... Transmission gear,
40...Eccentric cam.

Claims (1)

[Claims] 1 In the machine body 7, a fulcrum holder 13 is provided at the rear of each ink fountain key 8 so as to be able to move forward and backward, but not rotate; A screw shaft 15 for zero point adjustment whose front end is screwed together and supported on the fuselage 7 so that it can rotate freely and cannot move forward or backward.
, a dial knob 28 which protrudes the rear end of the zero point adjustment screw shaft 15 to the outside of the fuselage 7 and is fixed to the protruding end;
3, a female threaded pipe 16 that is rotatable and cannot move forward or backward; a screw shaft 17 for fine adjustment screwed into the female threaded pipe 16; and a screw shaft 17 provided at the rear end of the female threaded pipe 16. a first driven gear 34;
A driving side gear 35 is rotatably supported by a motor 36 and is rotatably supported on the body 7 in a state where it always meshes with the first driven gear 34, and a free end is rotatably supported on the front end of the fulcrum holder 13 so as to be able to swing freely in the front and rear directions. A link 18 is provided so that the rear surface of the part is always in pressure contact with the front end surface of the screw shaft 17 for fine adjustment by a spring 22, and a link 18 is provided at the base end of the link 18 by reducing the amount of oscillation of the free end of the link 18. inkwell key 8
The rear end of the screw shaft 17 for fine adjustment protrudes outside the fuselage 7, and a key 30 and a forward return spring 31 are used at the protruding end to make it unrotatable and to move forward and backward. Manual knob 29 and manual knob 2 installed as possible
A manual knob 29 is integrally provided at the inner end of the manual knob 29 in such a manner that it meshes with the driving gear 35 when the manual knob 29 is released, and detaches from the driving gear 35 when the knob 29 is pulled out against the return spring 31. A split ink fountain key device for a printing press, comprising a second driven gear 33 having a different number of teeth from the first driven gear 34.