JPS58181531U - Multicolor rotary printing machine capable of forward and reverse rotation - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the first embodiment in which the present invention is applied to a satellite-type (single-cylinder) multicolor rotary printing press, and Figure 2 is an explanatory diagram showing the first embodiment in which the present invention is applied to a twin-cylinder type multicolor rotary printing press. Figures 3 to 13 show an example in which a pair of doctor blades are individually switched and displaced. The left doctor blade for rotation is in contact with the 4th
The figure shows the state in which the clutch pin of the left doctor blade is operated with respect to the mesh roller which has been switched to enable forward rotation, Figure 5 shows the state in which the right doctor blade for reverse rotation is in contact with the mesh roller that rotates in the reverse direction, and 6
The figures are explanatory diagrams showing the state in which the clutch pin of the right doctor blade is operated for the mesh roller which has been switched to be able to be driven in reverse rotation, and the 7th Sakai is shown in Figure 3 7-7
8 is a cross-sectional plan view taken along line 8-8 in FIG. 3; FIG. 9 is a schematic cross-sectional view taken along line 9-9 in FIG. Figure 10 is a front view of the three-pronged arm for forward/reverse switching, Figure 11 is a front view of the left blade support arm for forward rotation, and Figure 12 is a front view of the right and side blade support arm for reverse rotation. Fig. 13 is a safety circuit diagram for preventing malfunction of forward/reverse switching, and Figs. 14 to 17 show examples of the effects of the present invention. That is, the first page (
Figure 14), page 2 (Figure 15), page 3 (Figure 16)
17) and the fourth page (FIG. 17) are printed in multiple colors. FIG. 3.3a and 3b--impression cylinder, 4.4a, 4b and 4c
... Plate cylinder, -5 and 5a... Web, 6, 6a, 6
b and 6C... ink pan,? , 7a, 7b and 7C
... Fountain roller, 8.8a, 8b and 8c.
・Each pair of ink deposits are rollers, 9.9a, 9b and 9.
c...1 pair each of twin indigenous Kerora, 10, 10a, 1
0b and IOC...Metsch roller, B...Doctor Frede on the left, C...Doctor blade on the right.
16 and 17...□・Mounting base, 18.1-9. 20. 21...Brate support arm, 22.23...Shaft at both ends of fountain 50-ra, 24.25...Eccentric sleeve, 26.27...Side frame, -m, 28.
29... Three-pronged arm, 28a... Right side blade operating arm, 28b... Left side blade operating arm, 28C
...Displacement transmission arm, 30...Link, 31...
Arm, 32...Cross shaft, 33...Arm, 34...Pneumatic cylinder, 35, 36.38.39.
...Pin hole, 37°40...Pin, 41.45...
Claw, 42...base, 43°4'6...bracket, 4
4.47...Threaded rod type stopper for contact pressure adjustment, 48
．． 49... Threaded rod type stopper for adjusting clutch pin hole matching, 50. 51-IJ Mitsutwitch, 52...
Forward rotation drive connection completion signal, 55... Reverse rotation drive connection completion signal, 53.56... AND circuit, 54.57...
・Drive command signal, M... Multicolor printing press, D and 〒...
・Kon's printing unit. Correction 1984. 7.10 The scope of claims for utility model registration shall be amended as follows. O Utility Model Registration Claims (1) In a multicolor printing system in which multicolor printing is performed on one side of the web by sequentially passing the web between a single impression cylinder and two to four plate cylinders in contact with the impression cylinder. , a fountain roller that rotates at a circumferential speed significantly lower than the circumferential speed of the plate cylinder and takes out ink from the ink pan; The ink deposit is in contact with a roller and rotates at the same peripheral speed as the plate cylinder, and is separated from the fountain roller by a minute gap, and has a mesh roller with minute irregularities on its 5 circumferential surfaces; A pair of left and right doctor blades are arranged facing each other so that their respective tips can be brought into pressure contact with target positions on the left and right sides near the fountain roller, respectively; An ink supply means consisting of an individual switching means for displacing the pair of doctor blades between a position in pressure contact with the mesh roller and a position away from the mesh roller is provided for each plate cylinder; A multicolor rotary printing press that can rotate forward and reverse, and is equipped with a clutch that switches the drive system between forward and reverse rotation in one stroke. (2) The diameter of the impression cylinder is twice the printing diameter, the diameter of the plate cylinder is the same, and both the impression cylinder and the plate cylinder are continuous cylinders. Multicolor rotary printing press.
'・. ,,(3) A multicolor rotary printing machine according to claim 1 of the utility model registration claim, in which the impression cylinder and plate cylinder have the same diameter with respect to the printing diameter, and both are threaded cylinders. (4) As an example of an individual switching means for a pair of doctor blades, a pair of left and right doctor blades are arranged facing each other so that their tips can respectively contact target positions on the left and right near the position where the mesh roller contacts the fountain roller. doctor blades, respective tip portions that respectively support the respective blades at both ends of their respective mounts, and each eccentric sleeve that respectively supports both end shafts of the fountain roller. Two pairs of left and right blade support arms are connected to each base ring, - each base ring is fitted into the peripheral surface of each individual core sleeve so as to rotate freely, and each protrudes in the radial direction from each base ring. Three arms, namely:
The operating arm of the right side blade, and the left side blade. - front and rear 1 equipped with a front operating arm and a displacement transmission arm;
a pair of three-pronged arms for forward/reverse switching; - a thousand actuators that are connected to the displacement transmission arm via a link and provide a predetermined reciprocating angular displacement; the right side blade support arm and the right side blade operation arm; a right side clutch mechanism that connects and disconnects the left blade support arm and the left blade operating arm, and a left side clutch mechanism that connects and disconnects the left blade support arm and the left blade operating arm; The left hand shake is around the mesh roller.
An output signal from a detector that detects that it is in an operating position where it contacts a surface and a normal rotation drive connection completion signal of the gear train for driving the rotary press are both input, or the right blade is connected to the circumferential surface of the mesh roller. On the left, there is a safety circuit that allows the printing unit to be started only by the input of both the output signal from the detector that detects that it is in the contact operating position and the reverse drive connection completion signal of the gear train for driving the rotary press. A multicolor rotary printing press according to item 1 of the claimed utility model registration claim. <5) Utility model registration application in which the circumferential speed of the fountain roller was reduced to 1110 to 1140 relative to the version 'FIQ' Figure 9) Figure 10

Claims (4)

[Scope of utility model registration request] (1) A multicolor printing system in which multicolor printing is performed on one side of the web by sequentially passing the web between a single impression cylinder and two to four plate cylinders in contact with it.''==1.□17 ．．
. True. 1. A fountain roller that takes out ink from inside the printing van, and a fountain roller that contacts the plate cylinder and supplies ink to the plate cylinder.
The knee rotates at the same peripheral speed as the plate cylinder in contact with the knee,
A mesh roller that is separated from the fountain roller by a small gap and has minute irregularities on its circumferential surface; A pair of left and right doctor blades are arranged facing each other so as to be able to press the parts of the mesh roller.・Individual switching means for the pair of doctor blades;
An ink supply means consisting of: is provided for each plate cylinder;
A multi-color rotary printing press that can rotate forward and backward, and is equipped with a clutch that switches the drive system of Kinhii to forward and reverse rotation simultaneously. (2) 'The diameter of the impression cylinder is four times the diameter of the mesh roller, the plate cylinder system is twice that of the mesh roller, and both the impression cylinder and the plate cylinder are threaded cylinders.Claim 1 of the Utility Model Registration Claim The multicolor rotary printing press described. (3) The multicolor rotary printing press according to claim 1, in which the diameters of both the impression cylinder and the plate cylinder are twice the diameter of the mesh roller, and both are threaded cylinders. (4) As an example of an individual switching means for a pair of doctor needles, target positions on the left and right near the position where the mesh roller ÷ the alantine roller is in contact with the center. A pair of left and right doctor blades are arranged to face each other so that their respective tips can be brought into contact with each other, each tip part that supports each blade at both ends of each of its mounting bases, and both end shafts of the fountain roller, respectively. Two pairs of left and right blade support arms □ each having base ring portions that are fitted into the circumferential surface of each eccentric sleeve to be supported, and each of the blade support arms □;
6. Each base ring part is fitted into the circumferential surface of the sleeve so as to be freely pivotable, and three arms protrude from each base ring part in the radial direction, that is, the operating arm of the right blade;
a pair of forward and reverse switching three-pronged arms each having an operating arm and a displacement transmission arm for the left blade, and a single actuator connected to the displacement transmission arm via a link to provide a predetermined reciprocating displacement; a right clutch mechanism that connects and disconnects the right blade support arm and the right blade operating arm; a right clutch mechanism that connects the left blade support arm and the left blade operating arm; Further, a left clutch mechanism that releases the connection, an output signal from a detector that detects that the left blade is in an operating position where it contacts the circumferential surface of the mesh roller, and a normal rotation drive connection of the gear train for driving the rotary press. and a completion signal, or an output signal from a detector that detects that the right blade is in an operating position where it contacts the circumferential surface of the mesh roller, and a reverse drive connection completion signal of the gear train for driving the rotary press. A multicolor rotary printing press according to claim 1, which is provided with a safety circuit that allows the printing unit to be activated only by inputs from both of the following.