JP2019014130A5 - - Google Patents

Description

Ink supply device for printing machine

  The present invention relates to an ink supply device for a printing machine that supplies ink to a plate cylinder or the like using an ink doctor chamber in the printing machine.

Conventionally, various ink supply apparatuses for printing machines that supply ink to a plate cylinder or the like using an ink doctor chamber have been proposed.
For example, Patent Document 1 is provided with an ink doctor chamber (indicated as an ink chamber doctor in Patent Document 1) and an anilox roll, and the ink is delivered to the anilox roll by the ink doctor chamber, and the anilox roll is transferred to the plate cylinder (print roller in Patent Document 1). ink supply device for a printing machine which is adapted to supply the ink is disclosed in the plate cylinder by touch against the by that) a.
The ink doctor chamber includes a housing having an ink groove and two doctor blades arranged and mounted in the shape of a roof along the opening edge of the ink groove of the housing. Then, the housing is moved toward the anilox roll, the doctor blade is pressed against the anilox roll, and the doctor blade comes into contact with the anilox roll, and maintains a uniform contact state parallel to the axial direction of the anilox roll. Aforementioned doctor blade uniformly contact the anilox roll when the anilox roll is rotated in this state, the excess ink on the surface of the anilox roll is scrape with a doctor blade, cell content integral formed on the surface of the anilox roll Only the ink can be sent out. That is, the doctor blade has a role of scraping off excess ink and a role of sealing to block excess ink.

In addition, since the doctor blade of the ink doctor chamber may be worn or deformed, it is necessary to inspect the doctor blade regularly and replace the doctor blade if the wear or deformation exceeds the limit. As described above, when the doctor blade is inspected, replaced, that is, maintained, the housing is moved away from the anilox roll so that the doctor blade is separated from the anilox roll to facilitate maintenance work.
Ink supply device for a printing machine disclosed in Patent Document 1, an ink doctor chamber with an easy to introduce the ink unit, against easily doctor blade anilox roll, in contact with doctor blade to the anilox roll and it has a structure of order to such a state can be maintained.

That is, in the above-described ink supply device, when the ink doctor chamber is manually moved toward the anilox roll, a lever that can be turned in a direction toward and away from the anilox roll turns toward the anilox roll, and thereby the lever field lines of the compression spring provided is beyond the pivot to move the anilox roll side, by a compression spring, the lever turning load direction to approach the Lee Nki doctor chamber to the anilox roll acts. On the other hand, if the ink doctor chamber is manually moved to the opposite side of the anilox roll, the lever will turn toward the opposite side of the anilox roll, and the force line of the compression spring will exceed the turning center and the opposite side of the anilox roll. It moved, thereby, the lever, the turning load an ink doctor chamber by the compression spring in a direction that makes distant anilox roll you for work.
In the ink supply apparatus described above, manually since moving the ink doctor chamber lever is adapted to follow, the lever is pivoted toward the opposite side of the anilox roll, the force line of the compression spring pivot Moving to the opposite side of the anilox roll beyond the center helps to facilitate the introduction of the next ink doctor chamber, the lever pivots toward the anilox roll, and the force line of the compression spring crosses the center of the anilox roll When moved to the side, the doctor blade is pressed against the anilox roll and helps to keep the doctor blade in contact with the anilox roll.

Therefore, the ink doctor chamber, together can easily be introduced into the ink unit, the doctor blade is simply pressed against the anilox roll, thereby maintaining contact with the anilox roll.
In the ink supply device of the printing machine described above, when the piston rod of the pressure medium cylinder is extended when the doctor blade is in contact with the anilox roll, the pressure member at the tip of the piston rod is moved from the pivot center of the lever. It hits the protrusion of the farthest lever . When the pressure member hits the protruding portion of the lever, the lever pivots in a direction approaching to the anilox roll, Ru strongly pressed against a doctor blade of the ink doctor chamber to the anilox roll. In this way, the doctor blade may have a role of sealing to block scraping role and surplus ink excess ink.

JP 2000-127350 A

In the ink supply apparatus of the printing machine described above , the housing of the ink doctor chamber is easily moved away from the anilox roll by the turning of the lever when interlocked with the lever . Accordingly, vibration or the like during printing machine operating, the housing is moved in a direction away from the anilox roll, decrease the contact pressure to the anilox roll doctor blade Then, can take uniformly scrape the ink of the anilox roll surface Otherwise, the sealing performance is impaired , and ink leakage may occur.
In order to prevent this, the housing is pressed by the spring force of the compression spring and the thrust of the pressure medium cylinder via the lever to press the doctor blade against the anilox roll with a strong force . However, this causes premature wear of the doctor blade, there is a high Mel possibility that replacement frequency. In addition , the burden on maintenance workers increases, maintenance costs increase, and the operating rate of the printing machine decreases.

The present invention has been made to solve the problems described above, and its object is the contact pressure of the doctor blade, Ki out taking evenly scraped ink anilox roll surface, appropriate for the ink leakage does not occur It is an object of the present invention to provide an ink supply device for a printing machine that can be adjusted and maintained at a desired value, that the housing can be easily moved away from the anilox roll, and that the doctor blade does not wear prematurely.

An ink supply device for a printing machine according to the present invention includes an ink doctor chamber in which two doctor blades are detachably attached to an opening edge of an ink groove of a housing, an anilox roll, and a position adjusting and fixing mechanism, and the ink doctor chamber Is close to the anilox roll, the attachment position where the doctor blade is in contact with the anilox roll, and the maintenance work position where the doctor blade is separated from the anilox roll and separated from the anilox roll. The position adjustment / fixing mechanism is movably supported, and has a position adjustment / fixation portion provided in the housing, a first position adjustment / fixation portion and a second position adjustment / fixation portion attached to the frame. The first position adjusting / fixing portion and the second position adjusting / fixing portion are A fixed position in contact with the position adjusting and fixing unit, the movable respectively over a fixed releasing position spaced apart from the target position adjusting and fixing part, the first position adjusting and fixing unit, the fixing position some time, the ink doctor chamber can be moved in a direction away from said anilox roll, is fixed so as not be moved in a direction approaching to fix the ink doctor chamber by changing the moving distance in said locked position position can be adjusted, wherein, when in a fixed release position is configured to pre-Symbol ink doctor chamber so as to be movable in the direction and away from the direction closer to the anilox roll, said second position adjusting and fixing part, when in the fixed position, in a direction approaching the ink doctor chamber to the anilox roll Can be dynamic, with away is fixed so as not to move, before SL can adjust the position for fixing the ink doctor chamber by changing the moving distance in a fixed position, when in the fixed release position, the ink doctor chamber is an ink supply device for a printing machine, characterized that you have been configured to be movable in the direction and away from the direction closer to the anilox roll.

In the ink supply device for a printing machine of the present invention, the first position adjusting and fixing portion has an inclined surface, that the inclined surface is in contact before Symbol the position adjusting and fixing unit, the ink doctor chamber is configured to fix so as not to be moved toward the front Symbol anilox roll, said second position adjusting and fixing portion has an inclined surface, the inclined surface before Symbol the position adjusting and fixing portion by contacting, it is configured to fix so as not to move in a direction away the ink doctor chamber before Symbol anilox roll.
Thus, the wedge action between the wedge action and a second position adjusting and fixing portion and the position adjustment and the fixing portion between the first position adjusting and fixing portion and the position adjusting and fixing portion, opposite the ink doctor chamber to each other since acts to move in the direction, a first position adjusting and fixing unit and the second position adjusting and fixing unit, so as not to move the ink doctor chamber, can be secured to the strong solid at the mounting position of the ink doctor chamber.

In the ink supply apparatus for a printing machine according to the present invention, the position adjustment / fixing section includes a first position adjustment / fixing section and a second position adjustment / fixing section provided at intervals in the moving direction of the ink doctor chamber. A fixed portion, and an inclined surface of the first position adjustment / fixing portion is in contact with the first position adjustment / fixing portion, and an inclined surface of the second position adjustment / fixing portion is the second position adjustment / fixing portion. that is configured to contact with the fixed part.
This allows the movement while the ink doctor chamber by the movement of the moving and the second position adjusting and fixing portion of the first alignment and the fixing portion to maintain a stable posture.

In the ink supply device for a printing machine according to the present invention, a guide rail is attached to the frame, and the ink doctor chamber is movable to the housing along the guide rail between the attachment position and the maintenance work position. A first support pin and a second support pin to be supported are attached at an interval in the moving direction of the ink doctor chamber, the first support pin is used as the first position adjustment and fixing portion, and the second support pin is used as the first support pin. The second position adjustment / fixing portion is used .
Thus, it is possible to smoothly move the ink doctor chamber with a small force, ing to less costly number of components is reduced.

In the ink supply device for a printing machine of the present invention, the guide rail, the ink doctor chamber in the maintenance work position, wherein by pivoting the first support pin as a fulcrum, that Do upward opening of the ink grooves to maintenance work attitude that had to lupine support.
Accordingly , the maintenance operation can be easily performed in a short time by turning the ink doctor chamber to the maintenance operation posture at the maintenance operation position.

In the ink supply device for a printing machine of the present invention, the anilox roll mounted in said frame, a doctor blade of the ink doctor chamber in said mounting position, abutting said anilox roll, the anilox roll by moving the frame and it is configured so that pressed against the plate cylinder.

According to the ink supply device of the printing machine of the present invention, the contact pressure of the doctor blade, Ki out taking evenly scraped ink anilox roll surface, can be maintained and adjusted to an appropriate value that the ink leakage does not occur The housing can be easily moved away from the anilox roll, and the doctor blade does not wear prematurely.

1 is an overall schematic plan view of an ink supply device. 1 is an overall schematic front view of an ink supply device. It is an AA line expanded sectional view of FIG. It is an enlarged plan view of an ink doctor chamber. FIG. 5 is a right side view of FIG. 4. It is an enlarged plan view of a position adjustment and fixing mechanism. It is the BB sectional view taken on the line of FIG. It is a side view of the position adjustment and fixing mechanism of FIG. It is explanatory drawing of the ink doctor chamber which moved to the direction away from the anilox roll . It is explanatory drawing of the ink doctor chamber of the state swirled so that it might become a maintenance work attitude | position .

An embodiment of an ink supply device for a printing machine according to the present invention will be described with reference to FIGS.
FIG. 1 is an overall schematic plan view of the ink supply apparatus, and FIG. 2 is an overall schematic front view of the ink supply apparatus.
The ink supply device 1 of the printing machine according to the present embodiment includes an ink doctor chamber 2 and an anilox roll 3. Transfer ink to the anilox roll 3 by ink doctor chamber 2 to supply ink to the plate cylinder 4 by touch contact the anilox roll 3 to the plate cylinder 4.
The anilox roll 3 is rotatably attached to the frame 5. Frame 5, the main body frame 6, a direction approaching the plate cylinder 4, and is reciprocally movable in a direction away from.

Ink doctor chamber 2, the frame 5, a direction approaching the anilox roll 3, and is reciprocally movable in a direction away from. The position of the ink doctor chamber 2 with respect to the anilox roll 3 is adjusted by the position adjustment / fixing mechanism 7, and the ink doctor chamber 2 is fixed to the frame 5 by the position adjustment / fixing mechanism 7 so as not to move at the adjusted position. .
The ink doctor chamber 2 can be moved in a direction toward and away from the anilox roll 3 by releasing the position adjustment and fixing mechanism 7.
Plate cylinder 4 is mounted rotatably to the main body frame 6. The plate cylinder 4, the anilox roll 3 and the ink doctor chamber 2 are arranged in the order of the plate cylinder 4, the anilox roll 3 and the ink doctor chamber 2 in the moving direction of the frame 5.

Thus, the ink doctor chamber 2, while being fixed to the frame 5 at a position adjusting and fixing mechanism 7, by moving in a direction toward the frame 5 to the plate cylinder 4, anilox roll 3 and the ink doctor chamber 2 integrally The anilox roll 3 can be pressed against the plate cylinder 4 by moving toward the plate cylinder 4.
Further, the anilox roll 3 and the ink doctor chamber 2 are integrated by moving the frame 5 in a direction away from the plate cylinder 4 while the ink doctor chamber 2 is fixed to the frame 5 by the position adjusting and fixing mechanism 7. is separated from the plate cylinder 4, the ink supply device of the printing machine 1 (anilox roll 3) can be separated from the plate cylinder 4.

The frame 5 has a first side frame 5a and a second side frame 5b that are separated in the left-right direction.
One end of the ink doctor chamber 2 in the length direction is supported by the one side frame 5a so as to be movable. The other end of the ink doctor chamber 2 in the length direction is supported by the other frame 5b so as to be movable.
The anilox roll 3 that has rotatably mounted over the plate cylinder 4 portion near a plate cylinder 4 close part of the other side frame 5b of one side frame 5a.
The main body frame 6 has a one-side main body frame 6a and an other-side main body frame 6b that are spaced apart in the left-right direction. The left-right direction is the length direction of the ink doctor chamber 2, the anilox roll 3, and the plate cylinder 4.

The distance between the one-side body frame 6a and the other-side body frame 6b in the left-right direction is wider than the distance between the one-side frame 5a and the other-side frame 5b in the left-right direction. The side frame 5a is located, and the other side frame 5b is located on the one side body frame 6a side of the other side body frame 6b. That is, the one side frame 5a and the other side frame 5b are located between the one side main body frame 6a and the other side main body frame 6b.
The one side frame 5a is supported by the one side main body frame 6a so as to be slidable in the direction toward the plate cylinder 4 by the one side guide 8a, and the other side frame 5b is supported by the other side main body frame 6b by the other side guide 8b. It is slidably supported in the direction of heading.

Each of the one-side guide 8a and the other-side guide 8b is a linear linear guide having a rail 80 and a plurality of sliders 81 slidably fitted on the rail 80. Rail 80 that is attached respectively to one side main frame 6a and the other side body frame 6b. Slider 81 that is attached respectively to one side frame 5a and the other side frame 5b.
Thereby, the one side frame 5a and the other side frame 5b can be slid while maintaining the parallelism of each other .
The one-side frame 5a is slid by the one-side ink supply device moving cylinder 9a.
Cylinder tube 90 on one side ink supply device moving cylinder 9a is that attached to one side main frame 6a. Its piston rod 91 that is connected to one side plate 92. One side plate 92 that is fixed to one side frame 5a.

Other side frame 5b is you slide on the other side ink supply device moving cylinder 9b.
Cylinder tube 93 on the other side the ink supply device moving cylinder 9b is that attached to the other side main frame 6b. Its piston rod 94 that is connected to the other side plate 95. Other side plate 95 that is fixed to the other side frame 5b. That is, the one-side ink supply device moving cylinder 9a and the other-side ink supply device moving cylinder 9b have the same configuration and the same mounting structure.
As a result, by extending the piston rod 91 of the one-side ink supply device moving cylinder 9a and the piston rod 94 of the other-side ink supply device moving cylinder 9b, the one-side frame 5a and the other-side frame 5b are parallel to each other. the slid away from the plate cylinder 4 while maintaining, ink feeder 1 (ink doctor chamber 2, anilox roll 3) of the printing machine can be moved to a removal position separated from the plate cylinder 4.

Further, by shortening the piston rod 91 of the one-side ink supply device moving cylinder 9a and the piston rod 94 of the other-side ink supply device moving cylinder 9b, the one-side frame 5a and the other-side frame 5b have a parallelism with each other. While being held , it is slid in the direction approaching the plate cylinder 4, the ink supply device 1 (ink doctor chamber 2, anilox roll 3) of the printing machine is brought into the wearing position , and the anilox roll 3 can be pressed against the plate cylinder 4.
The ink supply device 1 is a one-side ink supply device nip pressure fine adjustment mechanism that finely adjusts the nip pressure (the amount by which the plate cylinder 4 is compressed) acting on the plate cylinder 4 of the one end portion 3a of the anilox roll 3 in the length direction. 10a and the other side ink supply device nip pressure fine adjustment mechanism 10b for finely adjusting the nip pressure (the amount by which the plate cylinder 4 is compressed) of the other end 3b in the length direction of the anilox roll 3 to the plate cylinder 4 doing.

One side ink feeder nip pressure differential adjusting mechanism 10a includes a first side adjusting screw 11 screwed into the threaded hole 96 of one side plate 92, one side main frame One or Re provided et al 6a one side adjusting screw 11 The hemispherical distal end portion 11 a is in contact with a receiving member 12 and a rotating handle 13 attached to the proximal end of the one-side adjusting screw 11.
The one side plate 92 is formed with a slit 92a that makes the screw hole 96 discontinuous in the circumferential direction . On one side the plate 92 by rotating the slit 92a on one side the locking screw 14 you through vertically Yes in the screwed in the direction tightening the one side locking screw 14 in the handle 14a, a screw hole 96 is small The one-side adjusting screw 11 is locked so as not to rotate by being deformed into a hole . By rotating the one side locking screw 14 in a direction that loosens the handle 14a, a screw hole 96 is restored into the pores of the original diameter, one side adjusting screw 11 to release the lock so that it can rotate.

With the anilox roll 3 pressed against the plate cylinder 4 and the one-side adjusting screw 11 unlocked, the one-side adjusting screw 11 is rotated by the rotating handle 13 in the direction in which the hemispherical tip 11a advances. As a result , the one side frame 5 a is slightly slid in the direction away from the plate cylinder 4 via the one side plate 92 . Thereby, the nip pressure which acts on the plate cylinder 4 of the one end part 3a of the anilox roll 3 in the length direction is slightly lowered.
With the anilox roll 3 pressed against the plate cylinder 4 and the one-side adjusting screw 11 unlocked, the one-side adjusting screw 11 is rotated by the rotating handle 13 in a direction in which the hemispherical tip 11a moves backward. by, through one side plate 92, which Bisurido in a direction approaching the one side frame 5a to the plate cylinder 4. Thereby, the nip pressure which acts on the plate cylinder 4 of the one end part 3a of the anilox roll 3 in the length direction is slightly increased.

In this way , it is possible to finely adjust the nip pressure acting on the plate cylinder 4 of the one end portion 3a in the length direction of the anilox roll 3. After fine adjustment, the one-side adjusting screw 11 is locked so as not to rotate, and the one-side adjusting screw 11 is prevented from rotating due to vibration or the like when the printing machine is operating.
Other side ink feeder nip pressure differential adjusting mechanism 10b, the other side plate and the other side adjusting screw 15 screwed into the screw hole 97 of the 95, One or Re et provided on the other side body frame 6b other side adjustment screw 15 And a rotating handle 17 attached to the base end of the other-side adjusting screw 15.
The other side plate 95 is formed with a slit 95a that makes the screw hole 97 discontinuous in the circumferential direction . The other side plate 95 Yes screwed other side locking screw 18 you through the slit 95a vertically, by rotating the other side lock screw 18 tightened in the direction the handle 18a, a screw hole 97 is small The other side adjusting screw 15 is locked so as not to rotate by being deformed into the hole . By rotating the other side locking screw 18 with the handle 18a in the direction that loosens the screw hole 97 is restored into the pores of the original diameter, the other side adjusting screw 15 to release the lock so that it can rotate.

With the anilox roll 3 pressed against the plate cylinder 4 and the other side adjusting screw 15 unlocked, the rotating handle 17 causes the other side adjusting screw 15 to move in the direction in which the hemispherical tip 15a advances. By rotating , the other side frame 5 b is slightly slid in the direction away from the plate cylinder 4 via the other side plate 95 . As a result, the nip pressure acting on the plate cylinder 4 at the other end 3b in the length direction of the anilox roll 3 is slightly reduced.
While the anilox roll 3 is pressed against the plate cylinder 4 and the lock of the other side adjusting screw 15 is released, the other side adjusting screw 15 is rotated by the rotating handle 17 in the direction in which the hemispherical tip portion 15a moves backward. As a result , the other side frame 5 b is slightly slid in the direction approaching the plate cylinder 4 via the other side plate 95 . As a result, the nip pressure acting on the plate cylinder 4 at the other end 3b in the length direction of the anilox roll 3 is slightly increased.

In this way , the nip pressure acting on the plate cylinder 4 at the other end 3b in the length direction of the anilox roll 3 can be finely adjusted. After fine adjustment , the other side adjusting screw 15 is locked so as not to rotate , and the other side adjusting screw 15 is prevented from rotating due to vibration or the like when the printing machine is operated.
It is also possible to finely adjust the nip pressure acting on the entire length of the plate cylinder 4 in the longitudinal direction of the anilox roll 3 by rotating both the one-side adjusting screw 11 and the other-side adjusting screw 15.
An ink tray 50 is attached across the one side frame 5a and the other side frame 5b. The ink tray 50 has a drain hole 51, and the drain hole 51 communicates with a drain valve 52. Furthermore, the ink tray 50 can be easily attached and detached between the one side frame 5a and the other side frame 5b. For example, the ink receiving tray 50 is inserted between one side frame 5a and the other side frame 5b, attached in easily be pulled out (or disconnect) are also available removable.

Next, the configuration of the ink doctor chamber will be described with reference to FIGS. 3, 4, and 5. 3 is an enlarged sectional view taken along line AA in FIG. 1, FIG. 4 is an enlarged plan view of the ink doctor chamber, and FIG. 5 is a right side view of FIG. Incidentally, the body frame is omitted in FIG. In Figure 4, the length direction of the intermediate portion of the ink doctor chamber is omitted, only the end portions of the longitudinal direction that are shown.
The ink doctor chamber 2 includes a housing 20, two doctor blades 21, and two side seals 22. The housing 20 has an ink groove 23 opened to the front surface 20a. The front surface 20 a of the housing 20 is a surface facing the anilox roll 3.
The front 20a of the housing 20, two upper and lower pressing plates 25 are fixed by bolts 24. That is, the two doctor blades 21 are positioned at the stepped portions 20a-1 of the front surface 20a, and then fixed by the bolts 24 with respect to the front surface 20a by the two presser plates 25. Attach along the opening edge of the ink groove 23 in the front 20a, Ru Tei disposed shape of the wafer.

Accordingly, the force for sandwiching the pressing plate 25 by loosening the bolt 24 becomes weak, it takes out Succoth the doctor blade 21 from the housing 20.
Recess 26 on one end surface 20b and the other end face 20c of the longitudinal direction of the housing 20 that are formed respectively. Each side seal 22, that is attached is fitted to each recessed portion 26.
As shown in FIG. 4, that the plate 27 in each recess 26 is provided respectively. By rotating the bolt 28 in the screwing direction , the plate 27 advances and pushes the side seal 22, and the side seal 22 is pressed against both end portions in the length direction of the anilox roll 3.
The housing 20, that has a coupler 29 connecting piping ink circulation because (not shown) is filled while circulating the ink in the ink fountain 23 is connected. (See FIGS. 1 and 2).

The coupler 29 has one supply coupler 29a to which an ink supply pipe (not shown) is connected, and two return couplers 29b to which an ink return pipe (not shown) is connected. Supply coupler 29a is provided on the lateral center big one vertical direction lower side of the housing 20 communicates with the lateral center big one vertically lower end to that or hanging position of the ink fountain 23. Return coupler 29b is provided on the right and left direction sides big one vertical direction improvement center of the housing 20, and communicates with the that or hanging position lateral direction sides big one vertical upper end of the ink fountain 23. The ink supply pipe and the ink return pipe are respectively connected to an ink circulation tank (not shown), and an ink circulation path is constituted by the ink supply pipe, the ink return pipe, and the ink circulation tank.
The ink pumped from the ink circulation tank is accumulated in the ink groove 23 from the ink supply pipe through the supply coupler 29a. The ink overflowing from the ink groove 23 flows from the return coupler 29b through the ink return pipe and is returned to the ink circulation tank.

As a result, the ink fills the ink groove 23 while circulating.
Also, as the flow rate of the flow rate versus vertebral Nki return side of the ink supply side is increased, since the number of the ink return pipe is larger than the number of the ink supply pipe, by performing the circulation of the ink efficiently and securely Can do.
Coupler 29b for supply and return coupler 29a has a configuration capable of desorbing the pipe with one touch, easy to connect a pipe, it can be separated. By adopting a coupler with a valve as the supply coupler 29a and the return coupler 29b, ink leakage can be prevented when the pipe is detached.

In the above description, the ink circulation path includes an ink circulation tank, one ink supply pipe, and two ink return pipes. However, the ink circulation path is limited to this configuration . However , a flow rate adjusting valve , a flow rate detection sensor, a flow rate switching valve, and the like may be provided in the middle of the path.

As shown in FIG. 4, one side bracket 40 is attached to one end surface 20 b in the length direction of the housing 20. The other end face 20c of the longitudinal direction of the housing 20, are the other side bracket 41 is attached.
One side bracket 40 and the other side bracket 41 projects respectively to the rear than the surface 20d of the housing 20. The rear surface 20 d of the housing 20 is a surface opposite to the anilox roll 3.
The one-side bracket 40 closes the concave portion 26 of the one end surface 20b in the length direction of the housing 20, and presses and holds the side seal 22 against the concave portion 26.
The other side bracket 41 closes the concave portion 26 of the other end surface 20 c in the length direction of the housing 20 and presses and holds the side seal 22 against the concave portion 26.
The one side bracket 40 and the other side bracket 41 of the housing 20 include a first support pin 42 that is a first support portion of the housing 20 and a second support pin 43 that is a second support portion of the housing 20. They are attached at intervals in the moving direction (moving direction of the ink doctor chamber 2).

The first support pin 42 and the second support pin 43 on the side of the one end surface 20 b in the length direction of the housing 20 protrude from one end surface 20 b in the length direction of the housing 20 to one side in the length direction. The first support pin 42 and the second support pin 43 on the other end surface 20 c side in the length direction of the housing 20 protrude from the other end surface 20 c in the length direction of the housing 20 to the other side in the length direction.
The second support pin 43 is located behind the rear surface 20 d of the housing 20, and the first support pin 42 is located closer to the anilox roll 3 than the second support pin 43.
First support pin 42 and the second supporting pin 43 attached to one side bracket 40, the guide portion of the frame 5, for example, while being placed on the upper surface 44a of the one side guide rails 44 mounted on one side frame 5a, One end portion in the length direction of the ink doctor chamber 2 is directed to the anilox roll 3 while being guided by being sandwiched from above and below by an upper surface 44a of the one side guide rail 44 and a lower surface 70b of the main body 70 of the position adjusting and fixing mechanism 7 described later. It is supported so as to be able to reciprocate in the direction (see FIGS. 1, 2, 3, and 7).

First support pin 42 attached to the other side bracket 41 and the second supporting pin 43, the guide portion of the frame 5, for example, while being placed on the upper surface 45a of the other side guide rails 45 mounted on the other side frame 5b, The other end portion in the length direction of the ink doctor chamber 2 is guided to the anilox roll 3 by being sandwiched from above and below by the upper surface 45a of the other side guide rail 45 and the lower surface 70b of the main body 70 of the position adjusting and fixing mechanism 7 described later. It supports so that it can reciprocate in the direction (refer FIG.1, FIG.2, FIG.3, FIG.7).
Upper surface 45a of the upper surface 44a and the other side guide rail 45 on one side the guide rail 44 is parallel to the straight line X connecting the center of rotation 4A of the rotational center 3A and the plate cylinder 4 of the anilox roll 3, of the support pins 42 and 43 diameter center 42A of each support pin 42, 43 one or be identical dimensions, the 43A are positioned on an extension of the straight line X. That is, the ink doctor chamber 2 reciprocates along the straight line X.
Upper surface 44a of the one side guide rails 44, on the opposite side of the part and anilox roll 3 on the upper surface 45a of the other side guide rails 45, the upward recesses 46 that are formed respectively (Fig. 1, see FIGS. 2 and 3) .

Next, the position adjustment and fixing mechanism 7 will be described with reference to FIGS. 3 and 6 to 8. 6 is an enlarged plan view of the position adjustment / fixing mechanism, FIG. 7 is a cross-sectional view taken along line BB in FIG. 6, and FIG. 8 is a side view of the position adjustment / fixing mechanism in FIG.
The position adjustment / fixing mechanism 7 is provided over one side of the left and right sides of the housing 20 of the one side frame 5 a and the ink doctor chamber 2, and the left and right sides of the housing 20 of the other side frame 5 b and the ink doctor chamber 2. It is provided over the other side (see FIGS. 1 and 2).
Positioning and fixing mechanism 7 includes a body 70 attached to the frame 5, the first position adjusting and fixing portion 7a-1 and the second position adjusting and fixing provided at intervals in the moving direction of the housings 20 on the body 70 A portion 7a-2 and a position adjustment and fixing portion provided in the housing 20 of the ink doctor chamber 2 are provided. The main body 70 is provided on each of the one side frame 5a and the other side frame 5b. Positioned and fixed portions are provided at both ends of the length direction of the housing 20 of the ink doctor chamber 2.

In the present embodiment, the position-adjusted / fixed portion is a first position-adjusted / fixed portion 7b-1 provided in the housing 20 with an interval in the moving direction of the housing 20 (moving direction of the ink doctor chamber 2). And a second position adjustment / fixing portion 7b-2.
Although Figures 3 and 6-8 show the positioning and fixing mechanism 7 of one side frame 5a side, positioning and fixing mechanism of the other side frame 5b side 7 also that have the same structure.
When the doctor blade 21 of the housing 20 of the ink doctor chamber 2 is in contact with the anilox roll 3, that is, when the ink doctor chamber 2 is in the mounting position, the first position adjustment / fixing portion 7a-1 is the first support pin 42. The first support pin 42 is the first position adjustment / fixing portion 7b-1. At the same time, the second position adjustment / fixing portion 7a-2 faces the second support pin 43, and the second support pin 43 is the second position adjustment / fixation portion 7b-2.
First position adjustment and fixing portion 7a-1 is the main body 70, a fixed position in contact with the first support pin 42, with a movable vertically over a fixed releasing position away from the first support pin 42 , the moving direction of the housings 20 is provided so as not to move.

When the first position adjusting / fixing portion 7a-1 is in the fixed position , the housing 20 of the ink doctor chamber 2 can move in a direction away from the anilox roll 3, but cannot move in a direction approaching the anilox roll 3. Fixed to.
The first position adjusting / fixing portion 7a-1 can move at the fixed position. That is, the first position adjusting and fixing portion 7a-1 can be further moved in the projecting direction (downward direction) from the start of the contact with the first support pin 42. The housing 20 of the ink doctor chamber 2 is aniloxed by changing the moving distance at the fixed position of the first position adjusting / fixing portion 7a-1, that is, the moving distance in the protruding direction (downward) after the start of contact. The fixing position can be adjusted so as not to move in the direction approaching the roll 3.

When the movement distance at the fixed position of the first position adjustment / fixing portion 7a-1, that is, the movement distance after the start of contact, for example, the movement distance in the protruding direction (downward) is long, the movement distance is short. In comparison with the anilox roll 3, the distance between the housing 20 of the ink doctor chamber 2 fixed so as not to move in the direction approaching the anilox roll 3 and the anilox roll 3 is widened, and the contact pressure of the doctor blade 21 to the anilox roll 3 is Lower.
When the movement distance at the fixed position of the first position adjustment / fixing part 7a-1, that is, the movement distance after the start of contact, for example, the movement distance in the protruding direction (downward) is short, the movement distance is long. Compared with the anilox roll 3, the distance between the housing 20 of the ink doctor chamber 2 fixed so as not to move in the direction approaching the anilox roll 3 and the anilox roll 3 is narrowed, and the contact pressure of the doctor blade 21 to the anilox roll 3 is Get higher.
When the first position adjusting / fixing portion 7a-1 is in the fixed release position , the housing 20 of the ink doctor chamber 2 can move in a direction away from the anilox roll 3, and can also move in a direction approaching the anilox roll 3.

In the present embodiment, the front end portion of the first position adjustment / fixing portion 7a-1 facing the first support pin 42 is wedge-shaped, and the surface on the opposite side to the side facing the anilox roll 3 (second surface). The surface facing the position adjustment / fixing portion 7a-2) is an inclined surface 71. The inclined surface 71 is closer to the anilox roll 3 (a position away from the second position adjustment / fixing portion 7a-2) near the tip, and is gradually separated from the anilox roll 3 toward the base end portion (second position adjustment / fixing portion). 7a-2).
The inclined surface 71 of the first position adjusting / fixing portion 7a-1 is in contact with the side portion 42a of the first support pin 42 on the side facing the anilox roll 3 (the side opposite to the side facing the second support pin 43). The housing 20 of the ink doctor chamber 2 is fixed so that it cannot move in the direction approaching the anilox roll 3.

The first position adjusting / fixing portion 7a-1 moves and the position of the inclined surface 71 that contacts the side portion 42a of the first support pin 42 facing the anilox roll 3 is changed. The housing 20 moves in a direction toward and away from the anilox roll 3 by a wedge action between the inclined surface 71 and the first support pin 42. Thereby, the position fixed so that the housing 20 of the ink doctor chamber 2 may not move in the direction approaching the anilox roll 3 can be adjusted.
Since the first position adjusting / fixing portion 7 a-1 does not move in the moving direction of the housing 20, the ink doctor chamber 2 can be firmly fixed so as not to move in the direction approaching the anilox roll 3.

Second position adjustment and fixing portion 7a-2 is the main body 70, a fixed position in contact with the second supporting pin 43, with over a fixed releasing position away from the second support pin 43 is movable in the vertical direction The housing 20 is provided so as not to move in the moving direction.
When the second position adjusting / fixing portion 7a-2 is in the fixed position , the housing 20 of the ink doctor chamber 2 can move in the direction approaching the anilox roll 3, but cannot move in the direction away from the anilox roll 3. Fixed.
The second position adjusting / fixing portion 7a-2 can move at the fixed position. That second position adjusting and fixing portion 7a-2 can be further moved in the projecting direction (downward direction) from the start of the contact with the second support pin 43. The housing 20 of the ink doctor chamber 2 is aniloxed by changing the moving distance at the fixed position of the second position adjusting / fixing part 7a-2, that is, the moving distance in the protruding direction (downward) after the start of contact. The position to be fixed so as not to move in the direction away from the roll 3 can be adjusted.

When the movement distance at the fixed position of the second position adjustment / fixing part 7a-2, that is, the movement distance after the start of contact, for example, the movement distance in the protruding direction (downward) is long, the movement distance is short. Compared with the anilox roll 3, the distance between the housing 20 of the ink doctor chamber 2 fixed so as not to move away from the anilox roll 3 and the anilox roll 3 is narrow, and the housing 20 of the ink doctor chamber 2 is close to the anilox roll 3. It is fixed with.
When the movement distance at the fixed position of the second position adjustment / fixing part 7a-2, that is, the movement distance after starting the contact, for example, the movement distance in the protruding direction (downward) is short, the movement distance is long. Compared with the anilox roll 3, the distance between the housing 20 of the ink doctor chamber 2 fixed so as not to move away from the anilox roll 3 and the anilox roll 3 is widened, and the housing 20 of the ink doctor chamber 2 is far from the anilox roll 3. It is fixed with.
When the second position adjusting / fixing portion 7a-2 is in the fixed release position , the housing 20 of the ink doctor chamber 2 can move in a direction away from the anilox roll 3, and can also move in a direction approaching the anilox roll 3.

In the present embodiment, the tip of the second position adjustment / fixing portion 7a-2 facing the second support pin 43 is wedge-shaped, and the surface of the tip facing the anilox roll 3 (first position adjustment / fixing portion 7a-2). An inclined surface 72 is a surface facing the fixing portion 7a-1. The inclined surface 72, (at a position distant from the first position adjusting and fixing portion 7a-1) away tip-sided from the anilox roll 3, successively approaches the anilox roll 3 toward the base end (first position adjustment The shape is approaching the cum fixing portion 7a-1.
The inclined surface 72 of the second position adjusting / fixing portion 7a-2 is located on the side 43a opposite to the side of the second support pin 43 facing the anilox roll 3 (the side opposite to the side facing the first support pin 42). By making contact, the housing 20 of the ink doctor chamber 2 is fixed so that it cannot move away from the anilox roll 3.

The second position adjustment / fixing portion 7a-2 moves, and the position where the second support pin 43 of the inclined surface 72 comes into contact with the side portion 43a opposite to the side facing the anilox roll 3 changes. The housing 20 of the chamber 2 moves in a direction toward and away from the anilox roll 3 by a wedge action between the inclined surface 72 and the second support pin 43. Thereby, the position fixed so that the housing 20 of the ink doctor chamber 2 may not move in the direction away from the anilox roll 3 can be adjusted.
Since the second position adjusting / fixing portion 7 a-2 does not move in the moving direction of the housing 20, the ink doctor chamber 2 can be firmly fixed so as not to move in the direction away from the anilox roll 3.
Thus, since the first position adjustment / fixing portion 7a-1 and the second position adjustment / fixing portion 7a-2 do not move in the moving direction of the housing 20, the ink doctor chamber 2 is attached to the anilox roll 3 at the mounting position. It is firmly fixed so that it does not move in the direction approaching or leaving.

Next, an example of an operation for adjusting the contact pressure of the doctor blade 21 to the anilox roll 3 and fixing the ink doctor chamber 2 so as not to move will be described.
The first position adjusting / fixing portion 7a-1 and the second position adjusting / fixing portion 7a-2 are set to a fixed release position, and the first support pin 42 and the second support pin 43 are connected to the upper surface 44a of the one side guide rail 44 and the other side. By sliding on the upper surface 45 a of the guide rail 45, the housing 20 of the ink doctor chamber 2 is moved toward the anilox roll 3, and the doctor blade 21 is pressed against the anilox roll 3.
Next , the second position adjustment / fixing portion 7 a-2 is moved to the fixing position, and the inclined surface 72 is brought into contact with the side portion 43 a of the second support pin 43. By further moving to the second position adjusting and fixing portion 7a-2 to the projecting direction (downward direction), the housing 20 of the ink doctor chamber 2 is moved toward the anilox roll 3, acts on the anilox roll 3 of the doctor blade 21 It will be adjusted to gradually increase the contact pressure of. As a result, the contact pressure is set to an appropriate value in a state where there is no ink leakage , the ink on the anilox roll surface can be evenly scraped, and an appropriate amount of ink remains in the cells of the anilox roll 3 . The

In this state, the movement of the second position adjusting / fixing portion 7 a-2 is stopped, and the housing 20 of the ink doctor chamber 2 is fixed so as not to move away from the anilox roll 3. When the contact pressure of the doctor blade 21 against the anilox roll 3 is increased more than necessary, the second position adjustment / fixing portion 7a-2 is moved in the direction opposite to the above-described direction (upward). The contact pressure is lowered by moving the housing 20 of the ink doctor chamber 2 away from the anilox roll 3.
Next, the first position adjusting and fixing portion 7a-1 is moved to the fixing position, the inclined surface 71 is brought into contact with the side portion 42a of the first support pin 42, and the housing 20 of the ink doctor chamber 2 is moved to the anilox roll 3. Do not move in the approaching direction. Thus, the housing 20 of the ink doctor chamber 2 Ru is fixed so as not to move in the direction approaching the anilox roll 3.

As described above, the contact pressure of the doctor blade 21 against the anilox roll 3 can be adjusted by moving the second position adjustment / fixing part 7a-2 and the first position adjustment / fixing part 7a-1. Easy pressure adjustment.
The first support pin 42 and the second support pin 43 are sandwiched between the inclined surface 71 of the first position adjusting / fixing portion 7a-1 and the inclined surface 72 of the second position adjusting / fixing portion 7a-2, and the ink doctor chamber The two housings 20 are fixed so as not to move in a direction approaching or moving away from the anilox roll 3. Thus, because they can maintain a contact pressure of the doctor blade 21 to a proper value, the contact pressure rather name must be higher than necessary for the doctor blade 21, thus the doctor blade 21 is prevented from early wear.

Moreover, since the housing 20 of the ink doctor chamber 2 does not move away from the anilox roll 3 due to vibrations or the like generated during operation of the printing machine, the contact acting on the anilox roll 3 of the doctor blade 21 when the printing machine is in operation. pressure is reduced, or could not take uniformly scrape the ink of the anilox roll surface, there is no often a useful leakage ink.
When maintenance work is performed, the first position adjustment / fixing part 7a-1 and the second position adjustment / fixing part 7a-2 are moved to the fixed release position, and the housing 20 is moved to the maintenance work position. After the work is completed, an example of the above-described operation is performed to maintain the contact pressure of the doctor blade 21 at an appropriate value.

Maintenance work may be performed in this manner. For example, if only the second position adjustment / fixing portion 7a-2 is moved to the fixed release position, the housing 20 of the ink doctor chamber 2 moves away from the anilox roll 3. Since it becomes movable, the ink doctor chamber 2 can be moved to a position where maintenance work is performed, rather than the method of moving both the first position adjustment / fixing part 7a-1 and the second position adjustment / fixing part 7a-2 to the fixed release position. Ru can be moved easily and in a short period of time. Further, after the maintenance work is completed, the first position adjustment / fixing portion 7a-1 remains in the original mounting position (fixed position), and therefore only the second position adjustment / fixing portion 7a-2 is moved to the original mounting position ( Therefore, the ink doctor chamber 2 can be restored to the original attachment position more easily and in a shorter time than the above-described example of operation .

Therefore, maintenance work such as cleaning and inspection of the ink doctor chamber 2 and replacement of the doctor blade 21 can be performed in a short time, and a reduction in operating efficiency due to the stop of the printing machine during the maintenance work can be minimized.
Further, support portions (first support pin 42 and second support pin 43) that support the housing 20 of the ink doctor chamber 2 so as to be movable along the frame 5 are first position adjustment / fixing portions 7b-1 and second portions. because it is the position adjusting and fixing portion 7b-2, the number of parts is small, configuration is simple, the cost is cheap Kunar.
Since the first position adjustment / fixing portion 7b-1 and the second position adjustment / fixation portion 7b-2 are separated in the moving direction, the housing 20 of the ink doctor chamber 2 is moved in a direction approaching the anilox roll 3. The force to move and the force to move away from each other act on positions separated in the moving direction of the housing 20.

Thus, the housing 20 is moved while maintaining the stable posture.
Since the first supporting pin 42 and the second support pin 43 is moved along one side guide rail 44 and the other side guide rails 45, the ink doctor chamber 2 moves smoothly small force. The ink doctor chamber 2 (housing 20) is supported by the first support pin 42 and the second support pin 43 so as to be movable along the guide rails 44 and 45 between the attachment position and the maintenance work position.

Next, the configuration of the first position adjusting / fixing portion 7a-1 and the second position adjusting / fixing portion 7a-2 will be described with reference to FIGS.
The body 70, that has a first hole 73 and the second hole 74 are formed at intervals in the moving direction of the housing 20 of the ink doctor chamber 2. A first hole 73 second hole 74 penetrates from the upper surface 70a of the body 70 over the lower surface 70b, the superior vena diameter 73a, 74a and a lower small-diameter portion 73b, an upward step portion located between 74b and both diameter It is a long hole with a circular cross-sectional shape having 73c and 74c. Each lower small-diameter portion 73b, a key groove 75 that are respectively formed on 74b.
The first position adjusting / fixing portion 7 a-1 is a first casing 76 having a circular cross-sectional shape that is slidably fitted into the first hole 73. In the first rod 76, the lower portion of its inclined surface 71 is formed, at its upper part that has been formed a screw hole 76a opened in the upper end face. The first rod 76, that have slide key 76b is attached to the inclined surface 71 and the radially opposite side.

The first rod 76, the first hole 73, so as to slide key 76b is fitted slidably in key grooves 75, that are fitted. The first rod 76, the co If you do not move in the moving direction of the housing 20, so moving in the first hole 73 in the vertical direction without rotating, the orientation of the inclined surface 71 is always constant. The inclined surface 71 of the first rod 76 is located on the side opposite to the side facing the anilox roll 3, and is opposed to the second position adjusting and fixing portion 7a-2.
The second position adjusting / fixing portion 7a-2 is a second casing 77 having a circular cross-sectional shape that is slidably fitted into the second hole 74. In the second rod member 77, the inclined surface 72 at the bottom of that are formed, at its upper part that has been formed a screw hole 77a opened in the upper end face.
The second rod 77, that have slide key 77b is attached to the inclined surface 72 and the radially opposite side.
The second rod 77, the second hole 74, so as to slide key 77b is fitted slidably in key grooves 75, that are fitted. The second rod 77, co If you do not move in the moving direction of the housing 20, so moving in the second hole 74 in the vertical direction without rotating, the orientation of the inclined surface 72 is always constant.

The inclined surface 72 of the second rod 77 is positioned on the side facing the anilox roll 3, and is opposed to the inclined surface 71 of the first rod 76.
In other words, the inclined surface 71 of the first rod 76 inclined surface 72 of the second rod 77 are Oite phase opposite to the moving direction of the housing 20.
A first rod member 76, by operating the first movement operating portion 78, moves vertically over the fixed position and a fixed release position.
The first movement operation unit 78 includes a rod 78a, an intermediate rod 78b provided at one end in the longitudinal direction of the rod 78a, and a screw 78c provided on the opposite side of the rod 78a of the intermediate rod 78b. The screw 78c is screwed into the screw hole 76a of the first housing 76, and the intermediate rod 78b is fitted into the upper large diameter portion 73a of the first hole 73 and is in contact with the upward stepped portion 73c. Rod 78a is protruding upward from the first bore 61 of the pressing plate 60 mounted on the upper surface 70a of the body 70, that has been first handle 62 is rotating operation unit into the raised portion attached.

That is, the first moving operation unit 78, together with a rotatable and intermediate flange 78b is supported so as not to move in the vertical direction against the upward stepped portion 73c and the pressing plate 60 of the first hole 73.
Accordingly , the first casing 76 is moved upward by rotating the first movement operation portion 78 in one direction with the first handle 62 and rotating the screw 78c in the tightening direction. A first movement operating portion 78 has a first handle 62 is rotated in the other direction, by rotating in the direction that loosens the screws 78c, the first rod 76 moves downward. That is, the screw hole 76 a and the screw 78 c are means for converting the rotation of the first movement operation unit 78 into the vertical movement of the first housing 76.
In this way, by rotating the first handle 62, it can be first rod member 76 (the first position adjusting and fixing portion 7a-1) moves over a fixed position and a fixed release position.

The second rod member 77, by operating the second moving operation unit 79, moves in the vertical direction extending across the fixed position and a fixed release position.
Similar to the first movement operation unit 78, the second movement operation unit 79 includes a rod 79a, an intermediate rod 79b, and a screw 79c.
The screw 79c is screwed into the screw hole 77a of the second housing 77, and the intermediate rod 79b is fitted into the upper large diameter portion 74a of the second hole 74 and is in contact with the upward stepped portion 74c. Rod 79a is protruding upward from the second hole 63 of the pressing plate 60 mounted on the upper surface 70a of the body 70, that has been the second handle 64 is rotating operation unit into the raised portion attached.
In other words, the second moving operation unit 79, together with a rotatable and intermediate flange 79b is supported so as not to move in the vertical direction against the upward stepped portion 74c and the pressing plate 60 of the second hole 74.

Therefore , the second casing 77 moves upward by rotating the second movement operation unit 79 in one direction with the second handle 64 and rotating the screw 79c in the tightening direction. A second moving operation unit 79 with the second handle 64 is rotated in the other direction, by rotating in the direction that loosens the screws 79c, the second rod 77 moves downward. That is, the screw hole 77 a and the screw 79 c are means for converting the rotation of the second movement operation unit 79 into the vertical movement of the second casing 77.
In this way, it is possible to move over the second rod 77 by rotating the second handle 64 (second position adjusting and fixing portion 7a-2) in a fixed position and a fixed release position.

The first movement operating portion 78, the first rotation locking portion 65, Ru lockable der against rotation.
First rotational locking portion 65 that has a structure which is screwed a lock screw 65a to the pressing plate 60.
Rotating in the direction to tighten the lock screw 65a, by pressing the distal end to the rod 78a, the first moving operation unit 78 is locked against rotation.
The tip that away from the rod 78a to rotate the locking screw 65a in a direction that loosens the lock is released, the first movement operating portion 78 is rotatable.

Second moving operation unit 79, the second rotation locking portion 66 is locked against rotation can Rukoto.
Second rotary locking portion 66 that has a structure which is screwed a lock screw 66a to the pressing plate 60.
The tip by pressing the rod 79a rotating in the direction to tighten the lock screw 66a, the second moving operation unit 79 is locked against rotation.
The tip that away from the rod 79a to rotate the locking screw 66a in a direction that loosens the lock is released, the second moving operation unit 79 is made rotatable.

By operating the first movement operating portion 78, the first rod 76 (first position adjusting and fixing portion 7a-1) is in a fixed position, the second rod 77 by operating the second moving operation unit 79 (first 2 position adjusting and fixing portion 7a-2) is in a fixed position. Thereby, the housing 20 of the ink doctor chamber 2 is fixed so as not to move. In this state, the first rotation operation unit 78 is locked by the first rotation lock unit 65 so as not to rotate, and the second rotation operation unit 79 is locked by the second rotation lock unit 66 so as not to rotate. By doing in this way, since the 1st movement operation part 78 and the 2nd movement operation part 79 do not rotate by vibration etc. at the time of operation of a printing machine, the 1st case 76 and the 2nd case 77 can move. Absent.
Therefore, the housing 20 of the ink doctor chamber 2 does not move during operation of the printing machine, and the contact pressure of the doctor blade 21 to the anilox roll 3 is maintained at an appropriate value even during operation of the printing machine. Can do.

As shown in FIG. 3, an example of an operation for adjusting the contact pressure of the doctor blade 21 to the anilox roll 3 from the state where the housing 20 of the ink doctor chamber 2 is fixed so as not to move by the position adjustment and fixing mechanism 7 will be described. To do.
An operation when the contact pressure of the doctor blade 21 on the anilox roll 3 is lower than an appropriate value will be described.
First, the first movement operating portion 78 and rotating operation, by a fixed release position by moving the first rod 76 (first position adjusting and fixing portion 7a-1) above, the ink doctor chamber 2 housing 20 can be moved in a direction approaching the anilox roll 3.
In this state, by rotating the second moving operation unit 79, (as in a fixed position) inclined surface 72 of the second rod 77 remains in contact with the side portion 43a of the second supporting pin 43, the second rod 77 The housing 20 of the ink doctor chamber 2 is moved in a direction approaching the anilox roll 3 by moving the (second position adjusting / fixing portion 7a-2) downward and lengthening the moving distance at the fixed position. By this movement, the doctor blade 21 is further pressed against the anilox roll 3. Thus, an appropriate value by increasing the contact pressure of the anilox roll 3 of the doctor blade 21.

Next, the first movement operating portion 78 and rotating operation, is in a fixed position by moving the first rod 76 (first position adjusting and fixing portion 7a-1) downward. Along with this, the inclined surface 71 of the first casing 76 is brought into contact with the side portion 42 a of the first support pin 42, and the housing 20 of the ink doctor chamber 2 is fixed so as not to move in the direction approaching the anilox roll 3.
Thereby, the contact pressure to the anilox roll 3 of the doctor blade 21 can be maintained at an appropriate value.
An operation when the contact pressure of the doctor blade 21 on the anilox roll 3 is higher than an appropriate value will be described.
A second moving operation unit 79 by the rotation operation, by a fixed release position by moving the second rod 77 (second position adjusting and fixing portion 7a-2) above, the housing 20 of the ink doctor chamber 2 It is possible to move in a direction away from the anilox roll 3.

In this state, by rotating the first movement operating portion 78, (as in a fixed position) inclined surface 71 of the first rod 76 remains in contact with the side portion 42a of the first supporting pin 42, the first rod 76 The housing 20 of the ink doctor chamber 2 is moved away from the anilox roll 3 by moving the (first position adjusting / fixing portion 7a-1) downward and increasing the moving distance at the fixed position. This movement weakens the pressing of the doctor blade 21 against the anilox roll 3. Thereby, the contact pressure to the anilox roll 3 of the doctor blade 21 is lowered to an appropriate value.
Next, the second moving operation unit 79 by the rotating operation, is in a fixed position by moving the second rod 77 (second position adjusting and fixing portion 7a-2) downward. Along with this, the inclined surface 72 of the second casing 77 is brought into contact with the side portion 43a of the second support pin 43 to fix the housing 20 of the ink doctor chamber 2 so as not to move away from the anilox roll 3.
Thereby, the contact pressure to the anilox roll 3 of the doctor blade 21 can be maintained at an appropriate value.

Next, maintenance work of the ink doctor chamber 2 will be described with reference to FIGS. 3, 9, and 10. FIG. 9 is an explanatory view of the ink doctor chamber moved in a direction away from the anilox roll , and FIG. 10 is an explanatory view of the ink doctor chamber in a state of being swung so as to be in a maintenance work posture .
As shown in FIG. 3, the housing 20 of the ink doctor chamber 2 is moved to the position adjustment / fixing mechanism 7 (first position adjustment / fixing portion 7a-1, second position adjustment / fixing portion 7a-2, first position adjustment / fixing). In a state where the fixing portion 7b-1 and the second position adjustment / fixing portion 7b-2) are fixed so as not to move, the maintenance work of the ink doctor chamber 2 is difficult, and the maintenance work cannot be actually performed.
Therefore, the second moving operation unit 79 by rotating operation and a fixed release position by moving the second rod 77 (second position adjusting and fixing portion 7a-2) upwards. Thereby, the housing 20 of the ink doctor chamber 2 can be moved in a direction away from the anilox roll 3.

A first support pin 42 and the second support pins 43, by sliding on the upper surface 45a of the upper surface 44a and the other side guide rail 45 on one side the guide rail 44 moves, the ink doctor chamber 2, in a direction away from the anilox roll 3 The maintenance work position shown in FIG. In the maintenance work position, the first support pin 42 falls into the recesses 46 of the one side guide rail 44 and the other side guide rail 45, and the first support pin 42 is rotatably supported in the recess 46. That is, the first support pin 42 is a pin having a circular cross-sectional shape. The second support pin 43 is also a pin having a circular cross section.
As a result, the ink doctor chamber 2 is supported so as to be pivotable counterclockwise as indicated by an arc arrow with the concave portion 46 as a guide and the first support pin 42 as a fulcrum.
Supporting the ink doctor chamber 2 at the maintenance work position so as to be pivotable is not limited to the recess 46.

For example, a protrusion on the upper surface 45a of the upper surface 44a and the other side guide rail 45 on one side the guide rail 44 provided, the ink doctor chamber 2 Ru is supported pivotably by the first support pin 42 is rotatably abutted against the projection configuration may be. That is, a pin support portion that supports the first support pin 42 so as to be rotatable (turnable) may be provided.
In addition, you may make it support the 2nd support pin 43 rotatably.
From the state shown in FIG. 9, the ink doctor chamber 2 is turned approximately 90 degrees counterclockwise. Thus, as shown in FIG. 10, an ink doctor chamber 2, a doctor blade 21 and the bolt 24 upward, so that the opening of the ink fountain 23 of the housing 20 facing upward and Do that maintenance work posture.

In this maintenance work posture, it is easy for the maintenance worker to visually observe the doctor blade 21, so that the doctor blade 21 can be easily inspected.
Since the rotation operation of the bolt 24 is easy, the doctor blade 21 can be easily replaced.
Since the opening of the ink groove 23 of the housing 20 is upward, the residual ink in the housing 20 is difficult to leak during maintenance work. That is, when performing maintenance work, the ink supply from the ink supply pipe is stopped and the ink in the ink groove 23 of the housing 20 is returned from the ink return pipe to the ink circulation tank, but the ink that does not overflow in the ink groove 23 Will remain, and this residual ink can be prevented from spilling out of the housing 20.
These things can be in easily and in a short period of time the maintenance work I coupled with.

That is, as shown in FIG. 3, when the ink doctor chamber 2 is in the mounting position, the ink doctor chamber 2, the system is in the sideways attitude doctor blade 21, the bolt 24 moves toward the anilox roll 3. Subsequently, the ink doctor chamber 2 is moved to the maintenance position shown in left Fig sideways posture. In that state, inspection of the doctor blade 21, the exchange is cumbersome, that takes time.
In addition, since the opening of the ink groove 23 of the housing 20 is laterally directed toward the anilox roll 3, the residual ink in the housing 20 is maintained during maintenance work compared to the case where the opening of the ink groove 23 of the housing 20 is upward. Easy to leak.

The housing 20 of the ink doctor chamber 2, since only turning approximately 90 degrees, without removing the piping returning ink supply pipe and the ink, not shown, connected respectively to a supply coupler 29a and the return coupler 29b of the housing 20 Maintenance work can be performed (see FIGS. 1 and 2). When the ink supply pipe and the ink return pipe remain connected, the ink tray 50 interferes with the ink supply pipe and the ink return pipe, so that the ink tray 50 is removed as shown in FIG. Keep it .
Since the first support pin 42 can be removed from the recess 46 and moved upward, the ink doctor chamber 2 can be lifted and removed from the one side guide rail 44 and the other side guide rail 45. In this case not remove the ink supply pipe and an ink return pipe (not shown) connected respectively to the supply coupler 29a and the return coupler 29b of the housing 20 can be easily detached ink doctor chamber 2.

In the present embodiment, as shown in FIG. 3, the first position adjustment / fixing portion 7a-1 is on the right side (anilox roll 3 side), and the second position adjustment / fixing portion 7a-2 is on the left side (anilox roll 3 and However, the first position adjustment / fixing part 7a-1 may be on the left side (opposite side of the anilox roll 3), and the second position adjustment / fixing part 7a-2 may be on the right side (anilox roll 3 side). .
In this embodiment, the first rod 76 (first position adjusting and fixing portion 7a-1) and the second rod member 77 inclined faces 71 and 72 (second position adjusting and fixing portion 7a-2) to form respectively it is but an inclined surface may be formed to the first support pin 42 (the first target position adjusting and fixing portion 7b-1) and the second support pin 43 (the second target position adjusting and fixing portion 7b-2) .
In the present embodiment, the first position adjustment / fixing portion 7b-1 and the second position adjustment / fixing portion 7b-, which are support portions that support the housing 20 of the ink doctor chamber 2 so as to be movable along the frame 5. although the second shape to the pin-shaped, may be shaped other than a pin such as block shape.

In this embodiment, the supporting portion for movably supported along the housing 20 of the ink doctor chamber 2 to the frame 5 (the first support pin 42, the second support pin 43), first the position adjusting and fixing portion 7b -1 and the second position adjustment / fixing portion 7b-2, but the support portion and the position adjustment / fixing portion may be provided separately.
In this case, the number of support parts can be one.
When there is one position adjustment / fixation part, the first position adjustment / fixation part 7a-1 is brought into contact with the side surface of the position adjustment / fixation part on the side facing the anilox roll 3, and the position adjustment / fixation part constituting a so that the on the side surface of the anilox roll 3 and the side facing the opposite side contacting the second position adjusting and fixing portion 7a-2.
In addition, the support portion can be configured such that the lower surface of the housing 20 is placed on a guide rail (guide portion).

DESCRIPTION OF SYMBOLS 1 ... Ink supply apparatus of a printing machine, 2 ... Ink doctor chamber, 3 ... Anilox roll, 4 ... Plate cylinder, 5 ... Frame, 5a ... One side frame, 5b ... Other side frame, 6 ... Main body frame, 6a ... One side Main body frame, 6b ... Other side main body frame, 7 ... Position adjustment / fixing mechanism, 7a-1 ... First position adjustment / fixing portion, 7a-2 ... Second position adjustment / fixing portion, 7b-1 ... First position Adjustment / fixing part, 7b-2 ... second position adjustment / fixing part, 8a ... one side guide, 8b ... other side guide, 20 ... housing, 21 ... doctor blade, 23 ... ink groove, 42 ... first support pin (First position adjustment and fixing part, support part), 43 ... second support pin (second position adjustment and fixing part, support part), 44 ... one side guide rail (guide part), 45 ... other side guide Rail (guide part), 46 ... concave part (pin support part), 0 ...... body, 71 ... inclined surface, 72 ... inclined surface 76 ... first rod, 77 ... second rod, 78 ... first movement operating portion, 79 ... second movement operating portion.

Claims (6)

It has an ink doctor chamber with two doctor blades attached to the opening edge of the ink groove of the housing, an anilox roll, and a position adjustment and fixing mechanism.
The ink doctor chamber has a frame approaching the anilox roll, an attachment position where the doctor blade is in contact with the anilox roll, a maintenance position where the doctor blade is separated from the anilox roll and separated from the anilox roll. And is movably supported over
The position adjustment / fixing mechanism includes a position adjustment / fixation portion provided in the housing, a first position adjustment / fixation portion and a second position adjustment / fixation portion attached to the frame, and the first position adjustment / fixation portion. wherein a and the fixed portion second position adjusting and fixing part, said fixed position in contact with the position adjusting and fixing unit, the movable respectively over a fixed releasing position spaced apart from the target position adjusting and fixing portion ,
The first position adjusting and fixing unit, when in the locked position, together although the ink doctor chamber can be moved in a direction away from said anilox roll, is in a direction toward fixed so as not to be moved, before Symbol fixed can adjust the position for fixing the ink doctor chamber by changing the moving distance in position, said fixed when in the release position, so as to enable moving the ink doctor chamber in a direction and away from the direction closer to the anilox roll is configured,
The second position adjusting and fixing unit, wherein, when in a fixed position, wherein at the ink doctor chamber can be moved in a direction approaching to the anilox roll, with away is fixed so as not to move, before Symbol fixed can adjust the position for fixing the ink doctor chamber by changing the moving distance in position, said fixed when in the release position, so as to enable moving the ink doctor chamber in a direction and away from the direction closer to the anilox roll ink supply device for a printing machine, characterized that you have configured. The ink supply device for a printing machine according to claim 1,
The first position adjusting and fixing portion has an inclined surface, the inclined surface that contacts the front Symbol the position adjusting and fixing unit can not be moved toward the ink doctor chamber before Symbol anilox roll It is configured to secure as,
The second position adjusting and fixing portion has an inclined surface, the inclined surface that contacts the front Symbol the position adjusting and fixing unit, so that it can not move in a direction away the ink doctor chamber before Symbol anilox roll ink supply device for a printing machine that is configured to secure to. The ink supply device for a printing machine according to claim 2,
The position adjustment / fixing portion has a first position adjustment / fixation portion and a second position adjustment / fixation portion provided at intervals in the moving direction of the ink doctor chamber,
As the inclined surface of the first position adjustment and fixing portion is in contact with the first target position adjusting and fixing section, the inclined surface of the second position adjusting and fixing portion is in contact with the second target position adjusting and fixing portion ink supply device for a printing machine that is configured to. The ink supply device for a printing machine according to claim 3,
A guide rail is attached to the frame,
A first support pin and a second support pin that support the ink doctor chamber movably along the guide rail between the attachment position and the maintenance work position are disposed in the housing in the moving direction of the ink doctor chamber. At intervals,
An ink supply apparatus for a printing machine, wherein the first support pin is the first position adjustment / fixing portion, and the second support pin is the second position adjustment / fixation portion. The ink supply device for a printing machine according to claim 4,
The guide rail, the ink doctor chamber in the maintenance position, to pivot the first support pin as a fulcrum, have to lupine support portion maintenance position opening said ink fountain is that Do upward Printing machine ink supply equipment. In the ink supply apparatus of the printing machine in any one of Claims 1-5,
Attach the anilox roll to the frame,
Doctor blade ink doctor chamber in said mounting position, abutting said anilox roll, an ink supply device for a printing machine by moving the frame and is configured to press the anilox roll to the plate cylinder.

Images