JP3631916B2 - Ink reservoir fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ink reservoir fixing device applied to ink supply in a printing press.
[0002]
[Prior art]
A conventional ink reservoir fixing device will be described with reference to FIGS.
Reference numeral 1 denotes an ink original roller for supplying ink, and reference numeral 3 denotes an ink key for adjusting the thickness of ink supplied by adjusting a gap with the ink original roller 1, and a plurality of ink keys are provided in the width for supplying ink. Reference numeral 11 denotes a side plate, which is in contact with both ends of a plurality of three rows of ink keys, and is arranged so that one end is in contact with the ink source roller 1 with a minimum gap, and an ink reservoir 2 for collecting ink is constituted by the ink key group 3 and the ink source roller 1 To do.
[0003]
Reference numeral 4 denotes a support base for supporting the ink key 3, and arms 12 are provided at both ends of the support base 4, and the tip of the arm 12 is supported by pins 7 supported from the cross beam 5. Yes. The support base 4 is configured to be rotatable about the pin 7, and the contact surface 13 of the support base 4 is positioned at the contact surface of the cross beam 5. A seat plate 14 is fixed to the side of the arm 12 of the support base 4, and a U-shaped groove 18 is formed on the plate surface of the seat plate 14. In the U-shaped groove 18 of the seat plate 14, the screw shaft 16 supported by the pin 15 on the cross beam 5 is fitted. The screw shaft 16 can rotate around the pin 15. A nut 17 is screwed onto the screw shaft 16, and the nut 17 has a handle portion 19 and a hexagonal portion 20. When the nut 17 is screwed onto the screw shaft 16, the lower surface of the nut 17 hits the seat plate 14 fixed to the support base 4 and acts to press the support base 4 against the cross beam 5. By this action, the contact surface 13 of the support base 4 is pressed against the cross beam 5.
[0004]
After the ink stored in the ink reservoir 2 is used for printing, the ink is scraped out with a spatula or the like, and the ink reservoir 2 is cleaned. During this cleaning, the nut 17 is loosened, the screw shaft is moved in the direction of the arrow in FIG. 9, and then the support base 4 is opened around the pin 7 to the state indicated by the chain line in FIG. 9. In this state, the ink key 3, the ink base roller 1, and the side plate 11 that are soiled with ink are cleaned. When cleaning is completed, the support base 4 is returned to its original position, the screw shaft 16 is inserted into the U-shaped groove 18 of the seat plate 14, the nut 17 is tightened, and the contact surface 13 of the support base 4 is brought into contact with the cross beam 5 to set the position accurately. To do. As described above, when the support base 4 is rotated after printing or before printing, the nut 17 is tightened or loosened. When tightening, the hexagonal portion 20 of the nut 17 is set to accurately set the position of the support base 4. Tighten with a tool such as a wrench. When loosening, the handle portion 19 is turned by hand in order to loosen the nut 17 quickly after loosening with a tool.
[0005]
[Problems to be solved by the invention]
However, multi-color printing machines have this work for the number of colors. In recent years, the number of prints has been reduced, so the number of cleaning operations such as color replacement has increased, and the preparation time for cleaning operations has not been shortened. It is difficult to make a profit.
Further, since the support base 4 is fixed with a tool, the tightening force varies, whereby the position where the ink reservoir 2 is fixed is moved slightly, and the gap between the ink key 3 and the ink base roller 1 is moved slightly. Then, the opening degree of the ink key 3 that is numerically controlled is slightly deviated, resulting in a change in printing color tone and a deterioration in quality stability.
[0006]
SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide an ink reservoir fixing device that easily fixes and opens an ink reservoir and has a stable fixing force when cleaning the ink reservoir.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides an ink reservoir fixing device for fixing an ink reservoir for supplying ink to an ink origin roller in an ink supply device of a printing press at a set position, and forming an ink reservoir together with the ink origin roller. An ink key row provided with side plates at both ends is supported by a support base supported so as to rotate with respect to the frame, the support base is rotated, and the ink key row is in contact with the ink base roller and the ink A fixing shaft that is movable to a fixing position that forms a reservoir and a position that is distant from the ink base roller is provided on the support base, and is fixed to the fixing shaft. Providing means for adjusting the amount of compression of the elastic means, and fixing the support base to the frame side by the elastic force of the elastic means to release the elastic force of the elastic means. Operation means for enabling movement of the support base is provided, and as the operation means, a position for pressing the contact against the fixing surface on the support base side by the elastic means to fix the support base, and the elastic means There is provided a switching device for releasing and switching the contact to a position for releasing the contact from the fixed surface .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
In addition, about the same site | part as the above-mentioned conventional thing, the same code | symbol is attached | subjected and shown in a figure, and the overlapping description is abbreviate | omitted.
FIG. 1 shows a use state during printing, and FIG. 2 shows a fixing device in use state. FIG. 3 shows a state in which the ink reservoir 2 is opened for cleaning, and FIG. 4 shows the fixing device in the open state. 5 to 8 show details of the fixing device.
[0009]
1 to 8, reference numeral 1 denotes an ink source roller 1 for supplying ink, and an ink reservoir 2 is disposed adjacent to the ink source roller 1. The ink reservoir 2 is provided with an ink key 3 as an ink thickness adjusting mechanism for adjusting the thickness of ink to be supplied by adjusting the gap with the ink base roller 1, and the ink key 3 supplies ink. A plurality of widths are provided.
Reference numeral 11 denotes a side plate which is arranged so as to contact both ends of a plurality of rows of ink keys 3 and to contact the front end with the ink source roller 1 with a minimum gap, and an ink reservoir for collecting ink between the ink key 3 group and the ink source roller 1. 2 is configured.
[0010]
Reference numeral 4 denotes a support base for supporting the ink key 3. Arms 12 are provided at both ends of the support base 4, and the distal end of the arm 12 is attached to a horizontal beam 5 fixed to a frame (not shown). It is supported via a pin 7. The support base 4 is configured to be rotatable about the pin 7, and the position of the contact surface 13 (lower surface) of the support base 4 is determined on the contact surface (upper surface) of the horizontal beam 5 as a fixed position. .
A seat plate 29 is provided on the side surface of the support base 4 that supports the ink key 3, the side plate 11, and the like that move when the ink reservoir 2 is used / opened. A curved concave portion 31 is provided, and a cylindrical stopper hole 33 is provided on the upper surface.
[0011]
Next, a fixing method for fixing the ink reservoir 2 will be described with reference to FIGS.
One end of the fixing shaft 21 that fixes the support base 4 that supports the ink reservoir 2 is pivotally supported by a pin 15 as a shaft installed on the horizontal beam 5 at a fixed position. It is configured to be movable. At the other end of the fixing shaft 21, a screw is machined to provide a screw portion 21a. A fixing nut 23 is screwed into the threaded portion 21 a of the fixing shaft 21, and by adjusting the position of the fixing nut 23, the disc spring 22 serving as a resilient means disposed on the lower side is compressed. The fixing shaft 21 is passed through a hole 24a of the pin 24 in a state where the pin 24 is inserted into the stop plate 34 and the lever 27, below the disc spring 22 which is a compression spring.
[0012]
The lever 27 is divided into two forks, and the above-described stop plate 34, the fixing shaft 21 and the like enter the center of the crotch. A stopper hole 27a is provided on the side of the lever 27 that is not divided into two branches, and a stopper 32 is slidably fitted in the stopper hole 27a. One end of the stopper 32 fits in the cylindrical stopper hole 33 of the seat plate 29 so as to be detachable, and serves as a stopper so that the fixing device (fixing means) 30 does not move. A handle 28 is fixed to the other end of the stopper 32 so that it can slide with the stopper hole 27a of the lever 27 as a guide.
When the handle 28 is grasped by hand and lifted, the tip end portion of the stopper 32 is detached from the stopper hole 33, and when it is released, it is dropped by its own weight and enters the stopper hole 33. The lever 27 can rotate around the pin 24. A pin 25 is provided at a lower portion of the pin 24 that is divided into the forked portion of the lever 27, and a roller 26 as a contact is rotatably installed on the pin 25.
The compressed force of the disc spring 22 is transmitted to the pin 24 via the stop plate 34, transmitted from the pin 24 to the lever 27 and the roller 26, and can be pressed in the direction of the pin 15. In the state of FIG. 5, the roller 26 presses the curved concave portion 31 of the seat plate 29 in the direction of the pin 15.
[0013]
FIG. 1 or FIG. 5 illustrates the operation state at this time when the fixing device 30 in the use state of the ink reservoir 2 is in the fixed state.
The spring force of the disc spring 22 adjusted by the fixing nut 23 screwed to the fixing shaft 21 acts to push the pin 24 toward the pin 15 via the stop plate 34. Since the pin 24 moves integrally with the lever 27, the spring force is transmitted to the roller 26 pivotally supported by the pin 25 fixed to the lever 27, and the seat plate 29 is moved via the roller 26. It is transmitted to the curved concave portion 31. Thus, the seat plate 29 is pressed in the direction of the pin 15 by the force of the disc spring 22 to fix the seat plate 29. Since the seat plate 29 fixed to the support base 4 is pressed in the direction of the pin 15 (that is, the direction of the horizontal beam 5) as described above, the contact surface 13 of the support base 4 is pressed against the horizontal beam 5. Since the pressing force is pressed by the force of the disc spring 22, there is little variation in the force, the force is stable, the contact pressure between the contact surface 13 and the cross beam 5 is stable, and the setting position of the support base 4 is stable. To do.
[0014]
Next, an operation procedure for changing from this state to the open state of FIG. 3 will be described.
When the handle 28 as the operating means is slightly lifted by hand in the direction A in FIG. 5, the tip of the stopper 32 is detached from the hole 33 of the seat plate 29 and the fixing device 30 can be operated. Further, when the handle 28 is pulled in the direction B in FIG. 5, the lever 27 rotates in the direction B about the pin 24. Then, the roller 26 gets over the portion C of FIG. 5 of the curved concave portion 31 of the seat plate 29 to be in the state of FIG. When getting over the portion C, the roller 26 compresses the disc spring 22 via the pin 24 and pushes it up in the D direction. In the state of FIG. 7, since it is a spring type locking device, it is light and the relative position between the fixing shaft 21 and the lever 27 is maintained, and when the handle 28 is moved in the E direction, the state of FIG. Can be moved to the cleaning state of FIG.
[0015]
When cleaning of the ink reservoir 2 is completed, the ink reservoir 2 is moved by a moving device (not shown) to return to the state shown in FIG.
Next, the handle 28 may be operated in the state shown in FIGS. 8 to 7 and FIG. 5 in the reverse direction as described above so that the roller 26 acts on the curved concave portion 31 of the seat plate 29.
As described above, the lever 27 is a switching device that “actuates / does not act” the spring force on the curved concave portion 31 of the seat plate 29.
[0016]
As described above, according to the above configuration, the operation of the fixing device 30 for setting the ink reservoir 2 in the fixed state and the open state does not require a special tool, and the fixing force is constant and stable. Positional stability in the fixed state is increased.
Therefore, work efficiency is increased by eliminating the need for tools, shortening the preparation time, increasing productivity, and the method of applying force to the fixed contact surface is stable, so the absolute zero position of ink adjustment is less likely to fluctuate and numerical control Therefore, the ink amount adjustment by the ink key 3 is stably performed and the printing quality is improved.
[0017]
In addition, this invention is not limited to the said embodiment, For example, various resilient means, such as a coil spring or a leaf | plate spring, can be used for a resilient means other than a disc spring. As the ink reservoir fixing means, those having various structures can be used as long as they use an elastic means. In addition, it goes without saying that the present invention can be appropriately modified and used without departing from the scope of the present invention.
[0018]
【The invention's effect】
As described above, the ink reservoir fixing device according to the present invention has the following effects.
In an ink reservoir fixing device for fixing an ink reservoir for supplying ink to an ink origin roller in a printing machine ink supply device at a set position, an ink key row provided with side plates on both ends for forming an ink reservoir together with the ink origin roller, a frame A fixed position where the ink key row is brought into contact with the ink base roller to form the ink reservoir, and the ink base is supported by a support base supported to rotate relative to the ink base roller. The fixing shaft is configured to be movable to a position away from the roller, and one end of which is pivotally supported on the frame side is provided on the support base. A resilient means and a compression amount of the resilient means are provided on the fixed shaft. An operation for fixing the support base to the frame side by the elastic force of the elastic means and releasing the elastic force of the elastic means to enable the movement of the support base. A step is provided, and as the operation means, a position where the contact is pressed against the fixed surface on the support base by the elastic means and the support is fixed, and the elastic means is released to release the contact from the fixed surface. Since there is a switching device to switch to the release position, the operation of the fixing device to fix and open the ink reservoir not only requires a special tool, but also the fixing force is constant and stable. The position stability of the state is increased.
Therefore, work efficiency is improved due to the absence of tools, preparation time is shortened, productivity is increased, and the method of applying force to the contact surface on the fixed side is stable, so the absolute zero position of ink adjustment varies. This makes it difficult to adjust the amount of ink using an ink key with numerical control, leading to improved print quality.
Further, according to the present invention, as the operation means, a position where the contact is pressed against the fixed surface on the support base by the elastic means and the support is fixed, and the elastic means is released to fix the contact. Since the switching device for switching to the position to be released from the surface is provided, the operation for making the ink reservoir fixed or open is easy.
Further, the present invention provides an arm on both sides of the support base, and rotatably supports the tip of the arm on a beam fixed to the frame, and positions the lower surface of the support base against the upper surface of the beam. , One end of the fixing shaft for fixing the support base is pivotally supported on the beam, a screw portion is provided at the other end of the fixing shaft , and the position of the fixing nut screwed to the screw portion is adjusted. Since the amount of compression of the elastic means interposed between the nut and the switching device is adjusted, there is little variation in force and the force becomes stable.
Further, the present invention provides the lever as a switching device provided by inserting the fixing shaft through the lever, and the lever is provided with a roller as a contact, and the roller is mounted on the support plate by the elastic means. Since the support table is fixed by pressing against the curved concave portion, the setting position of the support table is stabilized.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing an ink reservoir fixing device in a printing use state according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram showing a fixing device in a use state of the ink reservoir fixing device of FIG. 1;
FIG. 3 is an open state configuration diagram for cleaning an ink reservoir or the like according to the embodiment of FIG. 1;
4 is a conceptual diagram showing a fixing device in an open state for cleaning an ink reservoir or the like according to the embodiment of FIG. 1;
FIG. 5 is an enlarged conceptual diagram of the fixing device of FIG.
6 is a cross-sectional view taken along line XX of FIG.
7 is a conceptual diagram showing a fixing device when an ink reservoir is opened from the position shown in FIG. 5 for cleaning or the like.
8 is a conceptual diagram showing a fixing device when the ink reservoir is in the cleaning state shown in FIG.
FIG. 9 is a conceptual diagram illustrating a conventional ink reservoir fixing device.
10 is a cross-sectional view taken along line YY in FIG.
11 is a cross-sectional view taken along the line ZZ of FIG.
[Explanation of symbols]
1 Ink base roller 2 Ink reservoir 3 Ink key (ink thickness adjustment mechanism)
4 Support base 5 Cross beam 6 Receptacle 7 Pin 11 Side plate 12 Arm 13 Contact surface 14 Seat plate 15 Pin 16 Screw shaft 17 Nut 18 U-shaped groove 19 Handle portion 20 Hexagonal portion 21 Fixing shaft 22 Disc spring (elastic means)
23 Fixing nut (Adjustment means)
24 pin 25 pin 26 Roller (Contact)
27 Lever (Switching device)
28 Handle 29 Seat plate 30 Fixing device 31 Recess 32 Stopper 33 Hole 34 Stop plate

Claims (3)

In an ink reservoir fixing device for fixing an ink reservoir for supplying ink to an ink former roller in a printing machine ink feeder device at a set position, an ink key row having side plates on both ends forming an ink reservoir together with the ink former roller, A fixed position where the ink key row is brought into contact with the ink base roller to form the ink reservoir, and the ink base is rotated. The fixing shaft is configured to be movable to a position away from the roller, and one end of which is pivotally supported on the frame side is provided on the support base, and the elastic means on the fixing shaft and the compression amount of the elastic means An operation for fixing the support base to the frame side by the elastic force of the elastic means and releasing the elastic force of the elastic means to enable the movement of the support base. A step is provided, and as the operating means, a position where the contact is pressed against the fixed surface on the support base by the elastic means and the support is fixed, and the elastic means is released to release the contact from the fixed surface. An ink reservoir fixing device comprising a switching device for switching to a release position. Arms are provided on both sides of the support base, the tip of the arm is rotatably supported by a beam fixed to the frame, the lower surface of the support base is positioned against the upper surface of the beam, and the support base is One end of the fixing shaft to be fixed is pivotally supported on the beam, a screw portion is provided at the other end of the fixing shaft , and the position of the fixing nut screwed to the screw portion is adjusted to adjust the position of the nut. 2. An ink reservoir fixing device according to claim 1, wherein the compression amount of the elastic means interposed between said switching devices is adjusted. As the switching device, the lever is provided by inserting the fixing shaft, the lever is provided with a roller as a contact, and the roller is pressed against the curved concave portion of the seat plate provided on the support base by the elastic means. The ink reservoir fixing device according to claim 2, wherein the support base is fixed.

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