JPS5925647Y2 - proofreading machine - Google Patents

Description

[Detailed description of the invention] The present invention is designed to hold a large printing typeface, approximately the size of a newspaper page, placed on the surface plate of a transport vehicle, along with the transport vehicle, on left and right sides that freely support the printing frame. The vehicle is carried in through the rear open part of the side frame, and the transport vehicle is restrained by a movement restraint device provided on the side frame, and then the printing frame at the forward extremity is moved backwards by a self-contained reversible motor and attached to the printing frame. The ink roller of the proof printing device is provided to transfer the ink to the printing plate, a sheet of printing paper is stacked on the printing plate, and then the printing pressure frame is advanced, and as it moves forward, the printing press roller of the proof printing device transfers the ink to the printing plate. This is related to a large proofing press that presses the printing form onto the printing plate, and eliminates the need for cumbersome and labor-intensive work such as transferring the printing form from the carrier to the proofing press during a fast-paced process such as newspaper production. To provide a large-scale proofing press capable of extremely high-speed proof printing of a desired large-format plate.

In conventional proof printing, a printing form is supplied to the underside of the printing press roller of the proof printing machine, and a manual ink roller coated with ink is rolled on the plate surface of the printing form, and then a sheet of printing paper is placed on top of the printing form. In this method, the printing is applied by passing the printing presser roller through the printer, and the manual work is extremely large, labor-intensive, and the efficiency is low.

An embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 1 shows an outline of the transport vehicle 1, and shows the surface plate 2.
Legs 3 protruding from the lower surface of the center of the platform are inserted into a cart 4 equipped with four rubber wheels 5, and the vertical position, inclination, etc. of the surface plate 2 can be adjusted using bundles 6. Several small rollers 7 are provided on the lower surface of the roller.

On the surface plate 2, a newspaper-page-sized printing forme 9 assembled within a clamping frame 8 is placed.

Reference numeral 11 shows an example of the large proofing printing press of the present invention, in which left and right side frames 12 are arranged to stand up independently, and receiving plates 13 are provided correspondingly inside the upper parts of these side frames 12. ,
The transport vehicle 1 can enter and exit from the rear opening 14 between the side frames 12, and at this time, the small roller 7 on the lower surface of the surface plate 2
rolls on the upper surface of the receiving plate 13 to determine the height of the plate surface of the printing forme 9.

A rotary shaft 15 with a bundle 16 fixed on the outside is passed through and supported in the left-right direction at the rear part of the side frame 12 on one side, and one of the pinching arms 17 is fixed on the inside thereof, and the shaft is supported at the front part. The other clamping arm 18 is pivotally supported by the clamping arm 19, and a connecting rod 20 is connected between the clamping arm 17 above the rotating shaft 15 and the clamping arm 18 above the shaft 19.

The above is an example of the movement restraint device a for the transport vehicle 1, in which the clamping arms 17 are erected by the bundle 16 as shown in FIG. The front and back sides of the surface plate 2 of the transport vehicle 1 are sandwiched between .18, thereby restraining the movement of the transport vehicle 1, and at the same time positioning the surface plate 2 and the printing form 9 placed thereon in the front and rear direction. .

Of course, even if the carrier 1 is allowed to move slightly back and forth between the clamping arms 17 and 18, there will be no problem in the proof printing work.

A front-back rack 21 is laid and fixed on the upper surface of the front side frame 12.

Reference numeral 23 denotes a printing pressure frame whose left and right sides span the side frame 12, and includes a pinion 24 that meshes with the rack 21 and a side frame 12.
A front end portion of a swinging arm 29 includes a small wheel 25 rolling on an outer horizontal rail portion 22 and a reversible motor 27 that drives a pinion 24 via an intermediate gear 26, and swings around a shaft 28. an ink roller 3 that is rotatably supported by an ink roller 3 with a part of its peripheral surface protruding toward the front side of the printing pressure frame 23;
0, and a printing press roller 3 rotatably supported at the rear end thereof.
1, and a printing press roller 3.
The shaft 33 of 1 is provided with an elevating rod 34 that fits into the vertical movement guide 36 of the printing pressure frame 23, and its lower end is connected to the side frame 12.
The axial roller 35 is attached to hang further outward from the horizontal rail portion 22 of the roller.

An upper moving path 37 and a lower moving path 38 are provided on each outer side of the side frame 12.
are provided in parallel in the horizontal direction, and the front end is connected to the both-side moving path 37.3.
8, and an extension path 40 at the same height as the lower movement path 38 at the rear end.
A cam plate 43 provided with a ramp 41 that joins the cam plates 7 and 7 is fixed, and the above-mentioned rotary roller 35 is fitted from the side.

The reversible motor 27 is connected to the pinching arm 17. - When the bundle 16 is operated so as to stand up the bundle 18, the circuit is connected to the power supply, and when the reverse push button switch is pressed when it is at the forward pole point 1 in Fig. 2, the reversible motor 27 rotates in one direction to cause the reversible motor 27 to move backward and move to the neutral position. The rotary roller 35 in the path 39 is guided from the upper surface of the switching plate 41 to the upper moving path 37, thereby raising the lifting rod 34, and moving the printing press roller 31 upward as shown by the chain line in the retreat path II. The swinging of the swing arm 29 causes the ink roller 30 to descend into contact with the stamp surface 2 of the printing form 8.

At the retraction pole III, the axial roller 35 is guided from the ramp path 41 to the extension path 40, and while the descending ink roller 30 is raised to almost the same height as the printing plate surface of the printing pressure roller 31, a limit switch (not shown) is activated. It hits and stops.

Then, when the forward push button switch is pressed to rotate the reversible motor 27 in the other direction, the axial roller 35 moves the printing press roller 31 through the lower moving path 38 while contacting the printing surface, and when it advances to the forward pole ■ When the axial roller 35 displaces the switching plate 42 and enters the neutral movement path 39, it hits a limit switch (not shown) and stops.

An ink supply frame 44 is provided at the front upper part of the side frames 12 on both sides.
to be fixed.

The frame includes a fantine roller 47 which contacts the tip of the doctor knife 46 in the ink tank 45, ink kneading rollers 48 and 49, an attached roller 50, and a fantine roller 47 and ink kneader rollers 48 and 49 that are in contact with the tip of the doctor knife 46 in the ink tank 45, and an attached roller 50. roller 4
It is provided with a group of rollers such as swinging transfer rollers 52 and the like that alternately touch the rollers 8 and a motor 53 that drives the required rollers by a chino.

The attached roller 50 has a printing pressure frame 2 that stops at the forward extremity point I.
The ink rollers 30 of No. 3 are in pressure contact with each other, and in order to maintain the pressure contact and reduce the impact when the ink rollers 30 collide, the support shaft 54 of the attached roller 50 is installed diagonally in a U-shape. It is housed in a shaped shaft support piece 55 and resiliently supported by a spring 56.

In the machine of the present invention, the printing pressure frame 23 is permanently stationed at the forward extremity point (3), and the ink roller 30 is brought into contact with the attached roller 50 of the ink supply frame 44.

In this state, when the transport vehicle 1 is sent through the rear opening 14 of the side frame 12 as described above, the motor 53 of the ink supply frame 44 is activated by a switch that detects this.

In addition, by operating the bundle 16 of the mobile restraint device a, the pinching arm 1
7.degree. 18 to restrain the movement of the transport vehicle 1 in the longitudinal direction, and at the same time, the circuit of the reversible motor 27 of the printing pressure frame 23 is connected to the power source as described above.

When the reverse push button switch is pressed as described above and the printing pressure frame 23 is retreated from the forward pole I, the axial roller 3
5 passes through the upper moving path 37 of the cam plate 43 as described above, thereby transferring ink to the plate surface of the printing form 9 by the ink roller 30 moving downward and stopping at the retraction pole III.

Therefore, manually feed a sheet of printing paper onto the printing plate, press the advance push button to advance the printing frame 23 as described above, and move the rotary roller 35 to the cam plate 4.
The printing paper is passed through the lower moving passage 38 of No. 3, and is pressed against the printing plate surface by the printing press roller 31 that has been moved downward to adhere ink, thus obtaining a proof sheet.

The speed at which several proofs are printed from the same printing form 9 is approximately 10 sheets per minute.

The structure of the present invention becomes clear from the explanation of the embodiments described above, and the printing forme 9 assembled on the top of the surface plate 2 of the carrier 1 is placed on the carrier 1, and the proofing large printing press is operated together with the carrier 1. 11 through the rear opening 14 between the side frames 12 on both sides, and its position is determined by the movement restraint device a to move the printing pressure frame 23 from the forward pole to the backward pole, and then from the backward pole to the forward pole in two stages. By doing so, the ink adhesion to the plate surface of the printing forme 9 by the ink roller 30 of the proofing plate device, the manual feeding of printing paper to the plate surface, and the printing press roller 31
The ink supply frame 44 includes an ink mixing roller group including an attached roller 50 that transfers the mixing ink to the ink roller 30, and is capable of rapidly returning a required proof by controlling the pressure of the printing paper in an orderly manner. The weight of the printing frame 23 can be reduced by installing it in a fixed position, and the movement of the frame 23 can be made easier, making the proof printing semi-automatic. This has the effect of significantly reducing work effort and time.

[Brief explanation of the drawing]

The attached drawings show one embodiment of the present invention, in which Fig. 1 is a side view of the carrier, Fig. 2 is a partially cutaway side view, Fig. 3 is a plan view, and Fig. 4 is a view taken along line A-A in Fig. 3. A cross-sectional view, FIG. 5 is a partially enlarged front view of the ink supply frame 44, and FIG. 6 is a partially enlarged front view of the printing pressure frame 2.
3 is an enlarged internal side view of a part of the ink supply frame 44. FIG. 1 → Transport vehicle, 2 → Surface plate, 8 → Clamping frame, 9 → Printing typesetting, 11
→ Large proof printing press, 12 → Side frame, 14 → Rear opening, 21 →
Rack, 23→Printing frame, 24→Pinion, 27→
Reversible motor, 29 → swing arm, 30 → ink roller,
31→Printing press roller, 32→Proofing device, 34→Elevating rod, 35→Touching roller, 43→Cam plate, 44→Ink supply frame, 50→Applied roller, 53→Motor, a→Movement restraint device.

Claims (1)

[Scope of utility model registration request] Front and rear racks are installed on the left and right side frames, which have rear openings that allow the transportation vehicle with the printing typeface placed on the surface plate to enter and exit freely.
The printing pressure frame supported on the side frame by a pinion meshing with the rack supports an ink roller at the front end and a printing press roller at the rear end, and also controls the ink roller and printing press roller by swing control. It is equipped with a proof printing device equipped with a swinging arm that alternately contacts the printing surface of the printing forme, and a pinion-driven reversible motor, and the side frame has a roller with which an ink roller comes into pressure contact at the forward extremity of the moving frame. 1. A large proofing press, comprising: an ink supply frame including an ink kneading roller group, a drive motor, etc., and a transport vehicle movement restraint device.