JP3160588B2 - Printing machine with ink tray mounting structure, ink tray mounting tool, and ink tray replacement method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing press, and more particularly to a printing press having an ink tray mounting structure and an ink tray suitable for a printing press having an ink fountain, such as a rotary printing press or a sheet-fed printing press. The present invention relates to a method for replacing a mounting tool and an ink tray.

[0002]

2. Description of the Related Art As shown in FIGS. 10 and 11, a printing press such as a sheet-fed printing press or a rotary printing press has an ink source roller 10 as shown in FIG.
Ink supply device 10 in which ink fountain 102 is arranged in front of
0 is equipped. The ink fountain 102 includes a peripheral surface of the ink source roller 101, a plurality of ink keys (blades) 103 forming the bottom of the ink fountain 102, and an ink key 10.
3 has two side plates 104 (only the back side is shown in FIG. 10) whose front end is in sliding contact with the peripheral surface of the ink source roller 101. Then, the ink in the ink fountain 102 is supplied to the ink source roller 101 from the gap between the ink source roller 101 and the tip of the ink key 103,
The ink is transferred to a downstream ink roller group via a call roller (not shown).

As shown in FIG. 11, a plurality of ink keys 103 are arranged side by side in the lateral direction of the apparatus.
4 are in sliding contact with each other. Further, the ink keys 103 can swing independently about a fulcrum shaft 105, and an ink amount adjusting device 106 is provided below each ink key 103.

[0004] The ink amount adjusting device 106 includes a push-up fitting 106b that engages with the lower surface of the tip of each ink key 103, and a pusher 106a that contacts the push-up fitting 106b and swings the push-up fitting 106b by expansion and contraction. And
The tip of the ink key 103 is swung by moving the push-up fitting 106b up and down by moving the pusher 106a appropriately so as to swing the push-up fitting 106b, thereby adjusting the gap between the ink key 103 and the ink source roller 101. The thickness of the supplied ink film is adjusted.

[0005]

By the way, in the above-mentioned conventional ink supply device 100, the adjacent ink keys 10
Ink key 103 and side plate 10 between 3, 103 and both ends
A small gap is secured between the four so that they can slide with each other. For this reason, there is a case where the ink penetrates into a small gap between the ink keys 103 due to a capillary phenomenon or the like. Thus, the ink keys 103, 103
If the ink that has entered through the gaps solidifies, the operation of the ink key 103 becomes unstable, or in the worst case, does not work, making it impossible to control the ink film thickness with high accuracy. was there.

[0006] After printing or when changing ink,
It is necessary to wipe off the remaining ink inside the ink fountain 102 with a rag or the like and wash it off with a cleaning liquid, but it is difficult to remove the ink due to its high viscosity.
In particular, it is difficult to remove the ink that has entered the gaps between the ink keys 103, 103, and the burden on the operator who performs cleaning is heavy. In order to improve productivity, it is necessary to shorten the preparation time for order change and improve the operation rate of the apparatus. You will spend a lot of time. For this reason, it has been desired to improve the productivity by reducing the burden on the worker by saving labor of the cleaning work and shortening the cleaning time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has made it possible to reduce the burden on an operator and improve productivity by facilitating a cleaning operation at the time of ink replacement or the like. An object of the present invention is to provide a printing machine with an ink tray mounting structure, an ink tray mounting tool, and a method of replacing an ink tray.

[0008]

According to a first aspect of the present invention, there is provided a printing press having an ink tray mounting structure according to the first aspect of the present invention. An ink supply device equipped with a tray, and an ink tray mounting structure capable of mounting at least two of the ink trays is provided above the ink supply device by the printing press.
It is characterized by being integrated with the unit .

According to a second aspect of the present invention, there is provided a printing press having an ink tray mounting structure according to the first aspect, wherein the ink tray mounting structure is provided at an upper end of the printing press unit . It is characterized in that it comprises a pair of ink tray mounting devices provided on the left and right sides of the unit and having two upper and lower mounting portions. According to a third aspect of the present invention, there is provided a printing press with an ink tray mounting structure according to the second aspect, wherein the mounting portions are provided on both side ends of the ink tray. And a pair of left and right bracket hooking members.

According to a fourth aspect of the present invention, there is provided a printing press having an ink tray mounting structure according to the second or third aspect, wherein the printing press unit comprises the ink supply device and the plurality of ink tray mounting structures. An ink roller storage section for storing the ink roller, and a drive mechanism storage section provided on both sides of the ink roller storage section for storing a drive mechanism for the ink roller, each of which is supported on each of the drive mechanism storage sections described above. A member is provided, and the ink tray mounting device is supported by the support member.

According to a fifth aspect of the present invention, there is provided a printing press with an ink tray mounting structure according to the fourth aspect, wherein the ink tray mounting tool locks the bracket. A pair of left and right bracket retaining members, and one or more coupling members for coupling the pair of bracket retaining members to each other, wherein both ends of the coupling member are extended and supported by the support member. Features.

According to a sixth aspect of the present invention, there is provided a printing press having an ink tray mounting structure according to the fifth aspect of the present invention, wherein the cover member covering the front surface of the ink roller accommodating portion is raised. A pair of arms supporting the pair of arms so as to be able to move up and down to open and close the front surface of the ink roller storage unit. Is arranged between the pair of arms, and the rotating shaft is also used as one of the connecting members.

According to a seventh aspect of the present invention, there is provided an ink tray mounting device comprising a pair of left and right hooking members having at least two hooking portions, and one or more hooking members connecting the pair of hooking members to each other. A connecting member, wherein the inner width between the engaging members is set to be wider than the outer width of the tray portion of the ink tray and narrower than the outer width between a pair of left and right brackets provided on both outer sides of the tray portion. It is characterized by doing.

[0014] replacing the ink tray of the present invention according to claim 8, with said press unit on a unit of a printing press one
A new ink tray is previously placed on the first mounting portion provided physically, and the ink tray removed from the ink fountain is integrated with the printing press unit on the printing press unit.
Specifically includes was placed on the second mounting portion, after the cleaning in said ink fountain, that is taken out above the new ink tray from the first mounting portion is mounted in said ink fountain Features.

According to a ninth aspect of the present invention, there is provided the ink tray replacing method according to the eighth aspect, wherein the first mounting portion is provided on the upper part of the printing machine unit. The receiving section is provided in two upper and lower stages so as to be a lower stage, a new ink tray is previously placed on the first mounting portion in the upper stage, and the ink tray removed from the inside of the ink fountain is placed in the lower stage. After being placed on the second placement portion and cleaning the inside of the ink fountain, the above-mentioned new ink tray is taken out from the first placement portion on the upper stage and is mounted in the ink fountain.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 show a printing press with an ink tray mounting structure according to an embodiment of the present invention. FIGS. 1 and 2 show a schematic configuration when the printing press is configured as a sheet-fed printing press. FIG. 3 is a side view showing a schematic configuration of an ink supply device provided in the printing press.
4 to 6 are perspective views showing a configuration of an ink tray provided in the ink supply device, and FIG. 7 is a configuration of an ink tray mounting tool as one embodiment of the present invention used when replacing the ink tray. FIG. FIG.
FIG. 5 is a diagram showing a method of replacing the ink tray of the present invention using the present ink tray mounting tool.

First, the schematic configuration of the printing press will be described. Inside the printing press 1, as shown by a dotted line in FIG. An ink roller group 4 and a plate cylinder 5 are provided. Then, the ink supplied from the ink supply roller 20 of the ink supply device 2 is transferred to the ink roller group 4 via the call roller 3 and is supplied to the plate cylinder 5 while being kneaded and extended by the ink roller group 4. To form an ink film on the surface.

As shown in FIG. 2, a printing press 1 is roughly divided into an ink supply unit 2 and an ink roller storage unit for storing a plurality of ink rollers (a call roller 3, an ink roller group 4, a plate cylinder 5, etc.). 1A and drive mechanism housings 1B and 1C provided on both sides of the ink roller housing 1A. The drive mechanism housing sections 1B and 1C are sections for housing the above-described ink roller drive mechanism and control device.

The front surface of the ink roller housing 1A is opened for cleaning the ink supply device 2 or replacing the printing plate 6 wound around the plate cylinder 5, but for safety, the ink supply is performed during operation. Below the device 2 is a safety cover (cover member) 7.
The lid is closed. This safety cover 7
Is supported by a pair of left and right arms 8 extending from the upper part of the printing press 1, and the safety cover 7 is opened and closed by rotating the arm 8 by a cylinder (not shown).

The ink supply device 2 is, as shown in FIG.
The peripheral surface of the ink source roller 20, the ink key 21, and the side plate 22
The ink fountain 23 is formed during printing, and the ink is stored in the ink fountain 23 during printing.
To be supplied. A plurality of ink keys 21 are juxtaposed and closely arranged in the width direction of the apparatus, and the rear end is rotatably supported by a support shaft 18 provided on a support base 24. The side plate 22 is fixed to the support base 24 so as to sandwich the ink key 21 from both sides, and the front end thereof is in sliding contact with the peripheral surface of the ink source roller 20.

Below the ink fountain 23, a horizontal beam 15 for supporting each member constituting the ink fountain 23 is provided, and the horizontal beam 5 is provided with an ink amount adjusting device 25. The ink amount adjusting device 25 includes a push-up metal fitting 26 that engages with the lower surface of the tip of each ink key 21, and a pusher 27 that abuts the tip with the push-up metal fitting 26 and expands and contracts in the front-rear direction by turning the knob 28 or the motor 29. I have. The tip of the ink key 21 is swung by moving the pusher 27 up and down about the fulcrum 26a by appropriately expanding and contracting the pusher 27.
The thickness of the supplied ink film is adjusted by adjusting the gap with zero. Below the tip of the ink key 21, a first ink receiver 6A for receiving ink dropped from the ink key 21, a guide 16C for guiding the ink in the first ink receiver 16A to a second ink receiver 16B,
16D is provided.

The sheet-fed printing press 1 has a detachable ink tray 30 inside the ink fountain 23. The ink tray 30 is, as shown in FIGS.
Side walls 31, 31 corresponding to the left and right side plates 22, 22,
It has a bottom plate 32 whose tip side is inclined downward corresponding to the ink key 21 forming the bottom of the ink fountain 23.

The lower surface of the bottom plate 32 is reinforced by a reinforcing plate 33, and extends rearward and downward at the rear end of the bottom plate 32. The cover 34 for preventing the occurrence of the above is formed. Brackets 36 are fixed to the upper ends of the side walls 31, 31 of the ink tray 30, respectively, facing outward.
A handle 37 is attached to the upper surface of the bracket 36.

The ink tray 30 covers most of each ink key 21 and each side plate 22 (this portion is referred to as a coated portion), so that it does not come into direct contact with the ink in the ink fountain 23. Ink base roller 20
The upper surface of the leading end of each ink key 21 and the inner surface of the leading end of each side plate 22 slidably in contact with the ink tray via the ink liquid film are provided on the ink tray 3.
It is exposed so as not to be covered with the ink 0 and directly in contact with the ink in the ink fountain 23 (this portion is called an exposed portion). That is, the inner peripheral surface of the ink fountain 23 is the inner surface of the ink tray 30 and the exposed portion (tip portion) 21A of each ink key 21.
, The exposed portion 22 </ b> A of each side surface 22, and the outer peripheral surface of the ink source roller 20.

The seam of the ink fountain 23 is formed between the ink tray 30 and the tip portion (exposed portion) 21A of each ink key 21 and between the ink tray 30 and the exposed portion 22A of each side plate 22. Requires a sealing process. Therefore, concave grooves 31c and 32c are formed on the outer surfaces of the end portions of the side walls 31 and 31 and the bottom plate 32, respectively.
A packing 38 having a continuous sealing surface is fitted in the concave grooves 31c and 32c.

When the ink tray 30 is mounted in the ink fountain 23, the portion of the packing 38 fitted in the groove 31 c on the outer surface of the tip of the side wall 31 is formed on the inner surface of the side plate 22 of the ink fountain 23. The portion of the packing 38 that is pressed against the step 22a and that is fitted into the concave groove 32c on the outer surface of the tip of the bottom plate 32 is pressed against the step 21a (see FIG. 3) formed on the top of the tip of the ink key 21. It has become.

The packing 38 allows the ink key 21 of the ink fountain 23 to be positioned between the tip of the side wall 31 of the ink tray 30 and the side plate 22 of the ink fountain 23 and between the tip of the bottom plate 32 of the ink tray 30 and the ink key 21 of the ink fountain 23. The space between the ink tray 30 and the ink key 21 or the side plate 2 is sealed.
Ink is prevented from leaking from the ink fountain 23 at the joint between the two.

The fixing of the ink tray 30 to the ink fountain 23 is performed by a pressing tool 40 (FIG. 3) provided on the support base 24.
Reference). That is, by tightening the bolts 41 provided on the pusher 40, the rear inclined surfaces 36a (see FIG. 5) of the left and right brackets 36 are moved toward the front end of the ink tray 30 (toward the gap between the ink key 21 and the ink source roller 20). And press the seal member 38 of the ink tray 30 to the step 22 of the ink fountain 23.
a and 21a, respectively, to fix the ink tray 30.

As shown in FIGS. 3 to 6, bolts 39 for positioning the ink tray 30 are provided at the front ends 36b of the left and right brackets 36, respectively. The positioning bolt 39 is brought into contact with the protrusion 22 b provided on the upper surface of the side plate 22, thereby defining the mounting position of the ink tray 30 in the front-rear direction. The position of the ink tray 30 in the front-rear direction can be adjusted by adjusting the amount of tightening of the positioning bolt 39, and the position in the height direction is adjusted by a height adjusting screw 35 provided on a bracket 36. I can do it.

Since the ink tray 30 is detachably provided inside the ink fountain 23 as described above, the contact area of the ink key 21 with the ink is greatly reduced, so that the ink can enter the gap between the ink keys 21 and 21. As a result, the operation of the ink key 21 is stabilized and the inside of the ink fountain 23 is easily cleaned. In addition, ink tray 3
0 can be replaced, so dirty ink tray 3
It is not necessary to clean 0 at the time of ink replacement, and it is possible to clean it after replacing it with a new one and removing it from the ink fountain 23 regardless of the operation of the apparatus. For this reason, it is also possible to shorten the cleaning time at the time of ink replacement, improve the operation rate of the apparatus, and improve the productivity.

By the way, as described above, the ink tray 30
Although it is possible to shorten the cleaning time and improve the operation rate by adopting the above, if the productivity is to be further improved, the entire preparation time including the handling of the ink tray 30 to be replaced is reduced. It is necessary to consider shortening.
That is, in addition to the cleaning time in the ink fountain 23, how to efficiently exchange the dirty ink tray 30 with the new ink tray 30 is a key to improving the productivity.

Therefore, in the printing press 1, in order to efficiently exchange the ink tray 30 at the time of ink exchange,
As shown in FIG. 1, an ink tray mounting device 50 as an ink tray mounting structure is provided on the upper panel 1a above the ink supply device 2. Book tray 50
As shown in FIG. 7, two substantially U-shaped side plates 51,
51, and connecting bars (connecting members) 53, 54 connecting the side plates 51, 51 to each other.
3 and 54 are extended at both ends to form a support plate (support member) 55,
It is supported by 55,56,56.

The support plates 55 and 56 for supporting the ink tray mounting device 50 are fixed to the upper panels of the drive mechanism housings 1B and 1C of the printing press 1. The reason why the ink tray placing device 50 is supported by the support plates 55 and 56 provided in the drive mechanism housing sections 1B and 1C is that the ink roller housing section 1A sandwiched between the drive mechanism housing sections 1B and 1C. This is because the upper surface is opened for cleaning and maintenance of the ink supply device 2 and the ink roller, and therefore, the ink tray mounting device 50 cannot be directly installed on the ink roller housing 1A. Also, the connection bar 54 on the back side
The support plate 56 also serves as a rotation shaft of the arms 8 supporting the safety cover 7 (see FIG. 1) and a support member thereof. In other words, the arms 8, 8 pivot about the connecting bar 54 to move the safety cover 7 up and down to open and close the front surface of the ink roller housing 1A.

The side plate 51 has upper and lower arms 51a and 51b extending forward (toward the operator).
a, 51b are connected by connecting members 51c. These upper and lower arms 51a and 51b serve as hooks for hanging the brackets 36 of the ink tray 30, respectively, and the upper left and right arms 51a and 51b.
The upper mounting portion 50a is formed by a, and the lower mounting portion 50a is formed by the left and right lower arms 51b, 51b.

For this reason, the height from the upper surface of the lower arm 51b to the upper surface of the upper arm 51a is equal to the height of the ink tray 30 (the handle 3 when the bracket 36 is horizontal).
7 (vertical distance from the upper end of the bottom plate 7 to the tip of the bottom plate 32). A projection 51d is formed on the upper surface of the rear end of the upper arm 51a.
The positioning bolt 39 of the ink tray 30 abuts on 1d to regulate the mounting position of the ink tray 30 in the depth direction.

The side plate 51 is attached to the connecting bars 53 and 54 by connecting the front end of the upper arm 51a to the connecting bar 5a.
3 and the rear end of the lower arm 51 b is connected to the connecting bar 5.
This is done by pivoting to 4. The relative position of the left and right side plates 51, 51 depends on the width of the ink tray 30, that is, the inner width between the side plates 51, 51 is larger than the outer width of the left and right side plates 22, 22 of the ink tray 30, And it is set so that it may become narrower than the outer width between brackets 36 and 36. Further, the relative position of the side plate 51 with respect to the printing press 1 is set such that both the left and right side plates 51, 51 are located inside the left and right arms 8, 8.

The side plate 51 can be moved in the horizontal direction (in the axial direction of the connecting bars 53 and 54) by releasing a fixture (not shown). If necessary, for example, maintenance or cleaning can be performed. In the case where the side plate 51 is in the way, it is possible to release the fixing and retreat to the side. Since the printing press with the ink tray mounting structure as one embodiment of the present invention is configured as described above, when exchanging the ink in the ink fountain due to an order change or the like, the following procedure is used. Perform ink replacement work. Hereinafter, the ink replacement operation using the ink tray replacement method of the present invention will be described with reference to FIG.

First, as shown in FIG.
During the operation time of the tray, the upper mounting portion 5 of the ink tray mounting device 50
At 0a, a new ink tray 30A is prepared in advance.
Then, when it is necessary to replace the ink due to an order change or the like, the printing press is stopped, and FIG.
As shown in (2), the ink remaining in the ink fountain 23 is scraped out of the ink fountain 23 with a spatula or the like.

When the remaining ink has been scraped to some extent, the ink fountain fixing device (not shown) is released and the support 24 is rotated counterclockwise in the figure to open the ink fountain 23. Release power and ink tray 30
The fixing of B to the ink fountain 23 is released. And FIG.
(C) As shown in FIG.
The ink tray 30B taken out from the tray 3 is placed on the lower mounting portion 50b of the ink tray mounting device 50. After removing the ink tray 30B,
The cleaning is completed by wiping the remaining ink with a rag or the like and washing it off with a cleaning liquid while the printer is opened.

When the cleaning of the ink fountain 23 is completed, a new ink tray 30A, which has been easily prepared in advance, is taken out from the ink tray mounting tool 50 as shown in FIG. Installing. Then, the support stand 24 is rotated again to return the ink fountain 23 to the use state, and the ink fountain 23 is fixed by an ink fountain fixing device (not shown).
When the fixing of the ink fountain 23 is completed, new ink is filled in the ink fountain 23 and the operation of the printing press 1 is restarted.

Before the next ink exchange during the operation of the printing press 1, the dirty ink placed on the lower mounting portion 50b of the ink tray mounting device 50 as shown in FIG. The tray 30B is carried out of the printing press 1, and instead, a new ink tray 30C is brought and set on the upper mounting portion 50a of the ink tray mounting device 50. The soiled ink tray 30B is washed with an external washing machine (not shown), hand washing, or the like every time the ink tray 30B is replaced or plural pieces are collectively collected.

As described above, according to the printing press having the ink tray mounting structure of the present invention and the ink tray replacing method of the present invention, the detachable ink tray 30 is mounted in the ink fountain 23 of the ink supply device 2. By the way, ink fountain 2
3 can be easily cleaned to shorten the cleaning time at the time of ink replacement, and further, by providing the ink tray mounting device 50, the handling of the ink tray 30 at the time of ink replacement can be facilitated. The entire preparation time, including the handling of
There is an advantage that productivity can be further improved.

A mounting section 50 on which the ink tray is mounted is provided.
Since a and 50b are configured in two stages, there is an advantage that the ink tray 30 can be easily taken in and out, and the installation space can be saved. Furthermore, if the new ink tray 30 is placed on the upper placement portion 50a and the dirty ink tray 30 is placed on the lower placement portion 50b, the new ink tray 30 can be placed even when the ink drops from the dirty ink tray 30. There is also an advantage that there is no risk of becoming dirty.

In the ink tray mounting device 50, the inner width between the arms 51a, 51a and between the arms 51b, 51b is wider than the outer width of the main body of the ink tray 30, and the outer width between the brackets 36, 36 on both sides. The ink tray 30 is set to be narrower than that and the ink tray 30 is supported by hanging the brackets 36, 36 of the ink tray 30 with the arms 51a, 51a, 51b, 51b.
There is also an advantage that the ink tray mounting device 50 itself is not stained by the ink attached to the ink tray 30.

Further, the support plates 55 and 56 are fixed to the upper panels of the drive mechanism housing sections 1B and 1C of the printing press 1, and the ink tray mounting tool 50 is installed so as to bridge over the ink roller housing section 1A. Therefore, there is an advantage that it does not hinder the cleaning and maintenance of the ink supply device 2 and the ink roller. The connecting bar 54 and the support plate 56 also serve as a rotation shaft of the arms 8 and 8 that support the safety cover 7 and a support member thereof, and a side plate 5 between the left and right arms 8 and 8.
2 and 52 are accommodated, so that it does not interfere with the existing arm 8 and that the ink tray mounting device 50 can be configured using existing members. There is also an advantage that the increase can be prevented by suppressing the increase.

It should be noted that the present invention is not limited to the above-described embodiments, and can be implemented with various modifications without departing from the spirit of the present invention. For example, in the above embodiment, the arms 51a, 51a or 51b, 51b
, The brackets 36, 36 of the ink tray 30 are hooked. However, the mounting portions 60a, 60b are formed in a tray shape like the ink tray mounting tool 60 shown in FIG. The structure which puts the tray 30 may be sufficient. Even in this case, if a replaceable sheet or the like is laid on the receivers 60a, 60b, the ink attached to the ink tray 30 will not stain the ink tray receiver itself.

Instead of placing the ink trays on the upper and lower tiers as in the above-described embodiment, the ink trays may be placed on the front and the back in parallel. Further, even when the receivers are placed one above the other, the arrangement is not limited to two stages, and a plurality of stages may be provided. Further, in the above-described embodiment, the support plates 55 and 56 are fixed to the upper panels of the drive mechanism housing sections 1B and 1C of the printing press 1, and the ink tray mounting tool 5 is extended over the ink roller housing section 1A.
However, the ink tray mounting device may be provided on a lid provided to cover the upper surface of the ink roller housing 1A.

The method of replacing the ink tray is not limited to the above-described embodiment. A new ink tray 30A is mounted on the lower mounting portion 50b, and the dirty ink tray 30B is replaced with the upper mounting portion. It may be placed at 50a. For example, if the mounting portions 50a and 50b are shifted back and forth, even if the dirty ink tray 30 is placed on the upper stage and the new ink tray 30 is placed on the lower stage, the new ink tray 30 is hardly stained. The placement of the ink tray 30 is not limited.

Further, in the above-described embodiment, the case where the present invention is applied to a sheet-fed printing press has been described, but the present invention is also applied to a printing press provided with an ink supply device having another ink fountain, such as a rotary printing press. It is of course possible.

[0050]

As described above in detail, according to the printing press having the ink tray mounting structure of the first aspect of the present invention, the ink tray mounting structure on which at least two ink trays can be mounted has an ink tray mounting structure . handling of the ink tray when the ink exchange by providing integrally with the printing machine unit above the feed device is facilitated, there is the advantage that it is possible to improve productivity by shortening the overall preparation time.

According to a second aspect of the present invention, there is provided a printing press having an ink tray mounting structure according to the present invention, wherein the ink tray mounting structure includes a pair of ink tray mounting tools each having two upper and lower mounting portions. The ink tray is easy to put in and take out, and when a new ink tray is placed on the upper tray and a dirty ink tray is placed on the lower tray, ink drops from the dirty tray. However, there is an advantage that there is no possibility that the new ink tray is stained.

According to the third aspect of the present invention, there is provided a printing press having an ink tray mounting structure according to the present invention, wherein the ink tray mounting device supports the ink tray by hooking the brackets at both ends on the two bracket hooks. With such a configuration, there is an advantage that the ink tray mounting device itself is not stained by the ink attached to the ink tray. According to the printing machine with the ink tray mounting structure of the present invention as set forth in claims 4 and 5, a support member is provided on each of the drive mechanism housing portions on both sides of the ink roller housing portion, and the ink roller housing portion is provided. Since the ink tray mounting device is installed so as to be bridged, there is an advantage that it does not hinder cleaning and maintenance of the ink supply device and the ink roller housed in the ink roller housing. In particular, according to the printing press having the ink tray mounting structure of the present invention, it is possible to clean the ink supply device and the ink roller which are housed in the ink roller housing from between the two bracket retaining members for hanging the bracket. There is an advantage that maintenance can be performed.

Further, according to the printing press having the ink tray mounting structure of the present invention, the rotating shaft of the arm supporting the cover member for covering the front surface of the ink roller housing from above is one of the connecting members. In addition to the above, the two bracket hook members are housed between the left and right arms, so that they do not interfere with the existing arm and use the existing member to mount the ink tray mounting device. It is possible to configure, and there is an advantage that an increase in the number of parts can be suppressed and an increase in cost can be prevented.

Further, according to the ink tray mounting device of the present invention, the two hook members having at least two hook portions in the vertical direction are connected by one or a plurality of connecting members. Since the inner width between the hook portions is set to be wider than the outer width of the tray portion of the ink tray and smaller than the outer width between the brackets on both sides, at least two inks are not stained by the ink attached to the ink tray. There is an advantage that the tray can be placed.

Further, according to the ink tray replacement method of the present invention, the handling of the ink tray at the time of ink replacement becomes easy, and the entire preparation time can be shortened to improve the productivity. There is an advantage. Further, according to the ink tray replacement method of the ninth aspect of the present invention, the ink tray can be easily taken in and out, and a new ink tray can be placed on the upper first mounting portion.
By placing the soiled ink tray on the lower second mounting portion, there is an advantage that even if the ink falls from the soiled ink tray, there is no risk that the new ink tray will be soiled.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a printing press with an ink tray mounting structure as one embodiment of the present invention.

FIG. 2 is a front view showing a schematic configuration of a printing press with an ink tray mounting structure as one embodiment of the present invention.

FIG. 3 is a side view showing a schematic configuration of an ink supply device according to a printing press with an ink tray mounting structure according to an embodiment of the present invention.

FIG. 4 is a perspective view showing a configuration of an ink tray according to a printing machine with an ink tray mounting structure according to an embodiment of the present invention.

FIG. 5 is a side view showing a configuration of an ink tray according to a printing press with an ink tray mounting structure as one embodiment of the present invention.

FIG. 6 is a diagram showing a state of engagement between an ink tray and an ink fountain in the printing press with an ink tray mounting structure according to one embodiment of the present invention, and a part of a bracket is shown broken; .

FIG. 7 is a perspective view showing a configuration of an ink tray mounting device as one embodiment of the present invention.

FIG. 8 is a view showing a method of replacing an ink tray as one embodiment of the present invention, and shows a flow of an ink tray replacing operation in the order of (a) to (e).

FIG. 9 is a perspective view showing another configuration example of the ink tray mounting device as one embodiment of the present invention.

FIG. 10 is a schematic side view showing a configuration of an ink supply device according to a conventional printing press.

FIG. 11 is a schematic top view of the inside of an ink fountain showing the configuration of an ink supply device according to a conventional printing press.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 printing machine (printing machine with ink tray mounting structure) 1A ink roller storage section 1B, 1C drive mechanism storage section 2 ink supply device 7 safety cover (cover member) 8 arm 20 ink source roller 21 ink key 22 side plate 23 ink fountain 30 Ink tray 36 Bracket 50 Ink tray mounting device 50a, 50b Mounting portion 51 Side plate (bracket locking member) 51a, 51b Arm (locking portion) 53, 54 Connection bar (connection member) 55, 56 Support plate (support member) )

Claims (9)

(57) [Claims] The upper part of claim 1. A printing press unit, includes an ink supply apparatus equipped with a freely ink tray removably into the ink fountain, at least two can be placed ink tray mounted structure the ink tray, said ink The printing press unit is located above the feeding device.
A printing press with an ink tray mounting structure, which is integrated with the ink cartridge. 2. The ink tray mounting structure is characterized by comprising a pair of ink tray mounting tools disposed on the left and right of the upper end of the printing press unit and having two upper and lower mounting portions. A printing machine with an ink tray mounting structure according to claim 1. 3. The ink tray mounting according to claim 2, wherein said mounting portion comprises a pair of left and right bracket locking members for locking brackets provided on both side ends of said ink tray. Printing machine with structure. 4. A printing mechanism wherein said printing press unit includes an ink roller storage section for storing said ink supply device and a plurality of ink rollers, and a driving mechanism provided on both sides of said ink roller storage section for storing a driving mechanism for said ink roller. The ink tray according to claim 2, further comprising a storage part, a support member provided on each of the drive mechanism storage parts, and the ink tray mounting tool supported by the support member. Printing machine with mounting structure. 5. The ink tray mounting device comprises a pair of left and right bracket retaining members for retaining the bracket, and one or a plurality of coupling members for coupling the pair of bracket retaining members to each other, 5. A printing machine with an ink tray mounting structure according to claim 4, wherein both ends of said connecting member are extended and supported by said supporting member. 6. A pair of left and right arms for supporting a cover member for covering the front surface of the ink roller storage portion from above, and the cover member for raising and lowering the cover member for opening and closing the front surface of the ink roller storage portion. A rotating shaft for swingably supporting the pair of arms, the pair of bracket locking members being disposed between the pair of arms, and the rotating shaft also serving as one of the connecting members. The printing press with an ink tray mounting structure according to claim 5, wherein the printing is performed. 7. A pair of left and right locking members having at least two locking portions, and one or a plurality of connecting members connecting the pair of locking members to each other. An ink tray mounting device, wherein the width is set to be wider than the outer width of the tray portion of the ink tray and narrower than the outer width between a pair of left and right brackets provided on both outer sides of the tray portion. 8. A new ink tray is previously mounted on a first mounting portion provided integrally with the printing press unit on the printing press unit, and the ink tray removed from the ink fountain is removed. On the printing press unit, the printer is placed on a second receiving portion provided integrally with the printing press unit, and after cleaning the inside of the ink fountain, the new ink tray is removed from the first receiving portion. A method for replacing an ink tray, comprising taking out the ink tray and mounting it in the ink fountain. 9. The printer according to claim 1, wherein the first mounting portion is on an upper stage and the second mounting portion is on a lower stage.
Provided in a stage, a new ink tray is previously mounted on the first mounting portion of the upper stage, and the ink tray removed from the ink fountain is mounted on the second mounting portion of the lower stage, 9. The ink tray replacement method according to claim 8, wherein after cleaning the inside of the ink fountain, the new ink tray is taken out from the first mounting portion in the upper stage and mounted in the ink fountain.