JP2003048365A - Ink bottle mounting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink bottle mounting apparatus which does not scatter an ink due to an impact of an ink bottle at its stopping time in the case of inserting the bottle into a bottle inserting chamber. SOLUTION: In the ink bottle mounting apparatus 40, the ink bottle 12 is rotatably provided between a bottle replacing position in which the bottle 12 can be inserted into the bottle inserting chamber from out of the apparatus by rotating a rotary base 42 and a bottle housing position for housing the bottle 12 in the apparatus, and an ink discharge port 12b of the bottle 12 to be inserted into the inserting chamber are mounted at an ink suction port 46. In this case, the suction port 46 is provided rotatably together with the base 42.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink bottle mounting device capable of exchanging an ink bottle, and more particularly to a technique suitable for being applied to an ink bottle mounting device externally attached to a drum in a stencil printing machine. Involved in

[0002]

2. Description of the Related Art For example, a stencil printing machine, which is a printing machine,
Based on the image information, the stencil sheet is wound around the drum and mounted, and the printing paper is moved while being pressed against the rotating drum to transfer the ink image directly to the printing paper, or
The transfer drum is rotationally moved while being pressed against the rotating drum, the ink image is temporarily transferred to the transfer drum, and the printing paper is moved while being pressed against the rotating transfer drum to transfer the ink image to the printing paper. In such a stencil printing machine, an ink bottle mounting device serving as an ink supply source for supplying ink from the inner surface side of the drum is provided. This ink bottle mounting device is arranged inside the drum when the diameter of the drum is large and there is enough internal space, but the diameter of the drum is small, or the diameter of the drum is not small but inside the drum. If it cannot be installed inside the drum due to lack of space, it is attached to the drum.

The present applicant has previously proposed an apparatus for mounting an ink bottle externally mounted on such a drum as shown in FIGS. 8 to 14 (see Japanese Patent Application No. 2000-044893).

As shown in FIGS. 8 and 9, a drum 3 supported by a drum support member 2 is arranged in the printer body 1. The outer surface of the printer main body 1 is covered with a main body case 4, and an opening 5 is provided in a part of the main body case 4. The opening 5 is adapted to be opened and closed by a lid 6. With the lid 6 open, the opening 5
The drum 3 together with the drum support member 2 is provided in the printing apparatus main body 1 so as to be freely inserted and pulled out. With the drum 3 inserted in the printer body 1,
An ink bottle mounting device 7 is provided in the internal space between the side surface of the drum 3 and the opening 5 of the main body case 4.

As shown in FIGS. 10 to 14, the ink bottle mounting device 7 is fixed to the opening 5 side of the drum supporting member 2 and has a head portion 9 having an ink sucking portion 8 and a drum supporting member 2. The rotary table 11 is rotatably supported around the support shaft 10 on the opening 5 side. A bottle guide 14 having a bottle insertion chamber 13 into which the ink bottle 12 is inserted is provided on the turntable 11. Turntable 11
Rotation of the ink bottle 12 from the outside of the apparatus using the opening portion 5 allows the ink bottle 12 to be inserted into the bottle insertion chamber 13 (position in FIG. 9) and the ink bottle 12 inserted into the bottle insertion chamber 13 to be opened. It is adapted to rotate between a bottle accommodation position (a position shown in FIG. 8 and the like) for accommodating in the internal space of the portion 5. When the turntable 11 is in the bottle accommodating position, the ink bottle 12 in the bottle insertion chamber 13 is in the ink suction port 8
It is located in the proper connection direction with respect to. Further, the bottle housing position is set such that the ink bottle 12 is close to the drum 3 (horizontal placement of the bottle).

The bottle connecting means 15 is connected to an operating lever 17 supported by the rotary base 11 via a support shaft 16 and the operating lever 17 via a connecting pin 18b, and follows the rotation of the operating lever 17. A slide plate 18 that slides on the rotary table 11, a link member 19 that is rotatably connected to the operation lever 17 at one end and rotatably connected to the bottle pressing member 22 at the other end, and this link member 19 is inserted. And a compression coil spring 19a having one end hooked on the link member 19 and the other end hooked on the bolt pressing member 22,
It has a bottle pressing member 22 which is rotatably supported by a bracket 20 via a support pin 21 and which is rotated by the rotation of the operation lever 17. At the end of the slide plate 18 on the ink suction port 8 side, there is provided a bottle regulation projection 18a that projects upward.

The bottle pressing member 22 is formed with an elongated hole for connection with the link member 19.
9 is connected to the bottle pressing member 22 with a slight backlash, but since the bottle pressing member 22 is biased in the direction away from the link member 19 by the compression coil spring 19a, the link member 19 And bolt pressing member 22
And are connected without rattling. In this case, the bottle pressing member 22 rotates around the support pin 21 against the urging force of the compression coil spring 19a, which can cope with the case where the size of the ink bottle 12 is changed due to swelling of the bottle or the like. .

Then, the ink bottle 12 in the bottle insertion chamber 13 is located at a position where its insertion tip surface abuts on the bottle regulation projection 18a, that is, at a non-coupling position (see FIGS. 13 and 1).
4) and when the operation lever 17 is rotated counterclockwise, the slide plate 18 causes the ink suction port 8 to move.
The ink bottle 12 is slid and moved to release the restriction on the movement of the ink bottle 12, and the bottle pressing member 22 rotates counterclockwise to press the rear end surface of the ink bottle 12 into which the ink bottle 12 is sucked. Mouth 8
The ink ejection port 12b of the ink bottle 12 is moved to a connection position (FIGS. 11 and 12) attached to the ink suction port 8.

On the contrary, when the operation lever 17 is rotated in the clockwise direction when the ink bottle 12 is in the connecting position, the bottle pressing member 22 is rotated in the clockwise direction and presses the rear end surface of the ink bottle 12 inserted. And the slide plate 18 slides in the direction away from the ink suction port 8 and presses the insertion front end face of the ink bottle 12, whereby the ink bottle 12 moves in the direction away from the ink suction port 8. Then, the ink bottle 12 is moved from the ink ejection port 12b to the non-coupling position (FIGS. 13 and 14) where the ink suction port 8 is detached.

The spring hook 23 of the operating lever 17 is also provided.
A toggle spring 25 is interposed between and the spring hook portion 24 of the rotary table 11. When the operation lever 17 is located at the non-coupling position by the spring force of the toggle spring 25, the non-coupling position is maintained. When it is located at the connection position, it holds the connection position.

The first ink suction port protection means 30 includes a locking portion 31 extending from the lower end of the operating lever 17, and a locking elongated hole 33 formed in a bracket 32 fixed to the drum supporting member 2. It consists of At the position of the operation lever 17 where the ink bottle 12 is in the bottle non-coupling position, the locking portion 31 is located above the locking long hole 33, and the rotary table 11 is not moved from the bottle accommodating position to the bottle replacement position. Although it is possible, at the position of the operation lever 17 where the ink bottle 12 is the bottle connecting position, the locking portion 31 is positioned so as to fit into the locking elongated hole 33, and the bottle is replaced from the bottle accommodating position of the rotary table 11. Movement to the position is blocked.

The second ink suction port protection means 34 is fixed on the lever lock member 35, which is rotatably supported by the turntable 11 via the support pins 35a, and the drum support member 2, so that the turntable 11 can accommodate a bottle. In the position, the lock release member 36 located on the rotation locus of the end portion of the lever lock member 35.
Have and. The lever lock member 35 is provided between a rotation restriction position located on the rotation locus of the protrusion 37 of the operation lever 17 and a rotation allowable position located outside the rotation trajectory of the projection 37 of the operation lever 17. While being rotated, the tension coil spring 38 urges it toward the rotation restricting position side.

When the rotary base 11 is in the bottle accommodating position, the lever lock member 35 is positioned by the lock control member 36 in the rotation permitting position against the spring force of the tension coil spring 38, and the bottle uncoupling position by the bottle connecting means 15 is established. Is allowed to move between the bottle connecting position and the bottle connecting position, the rotary base 11 is located at the rotation restricting position by the spring force of the tension coil spring 38 at the bottle replacement position, and the bottle connecting means 15 connects the bottle non-connecting position and the bottle connecting position. Movement to and from the position is blocked.

Next, the replacement work of the ink bottle 12 of the ink bottle mounting device 7 will be described. Before the replacement, the ink bottle mounting device 7 is in a state in which the ink can be supplied. Therefore, as shown in FIG. 11 and FIG.
Reference numeral 1 denotes a bottle housing position and the ink bottle 12 is located at the connecting position.

First, the lid 6 is set to the open position, and the operating lever 1
7 is operated in the direction of arrow A in FIG. 12 to position the ink bottle 12 from the connection position to the non-connection position (see FIGS. 13 and 1).
Position 4). Next, the turntable 11 is rotated in the direction of arrow B in FIGS. 9 and 13, and is rotationally moved from the bottle storage position to the bottle replacement position (position in FIG. 9). At this bottle replacement position, the ink bottle 12 is pulled out from the bottle insertion chamber 13, and a new ink bottle 12 is inserted to the insertion completion position. Here, the insertion completion position at the bottle replacement position is a non-connection position where the insertion front end surface of the ink bottle 12 abuts on the bottle regulation protrusion 18a of the slide plate 18, and the insertion is completed up to this position.

Next, the turntable 11 is rotated in the direction of arrow C in FIGS. 9 and 10 to rotate from the bottle replacement position to the bottle storage position (positions in FIGS. 13 and 14). At this bottle storage position, the operation lever 17 is operated in the direction of arrow D in FIG. 7 to move the ink bottle 12 from the non-connecting position to the connecting position (positions in FIGS. 11 and 12).

When the drum 3 is pulled out from the printer main body 1 for repairing the drum, replacing the drum, etc., the drum 3 can be pulled out together with the drum supporting member 2 by pulling out the drum supporting member 2 from the opening 5. .

[0018]

However, in the conventional ink bottle mounting device 7 described above, the ink bottle 1 inserted in the bottle insertion chamber 13 at the bottle replacement position.
2 is simply inserted without being attached to the ink suction portion 8, so that when the ink bottle 12 is vigorously inserted into the bottle insertion chamber 13, the ink bottle 12 is suddenly stopped at the bottle insertion completion position. There is a problem that the ink is scattered from the ink ejection port 12b and the inside of the ink bottle mounting device 7 is stained with the ink.

Therefore, the present invention has been made to solve the above-mentioned problems, and when the ink bottle is inserted into the bottle insertion chamber, the ink does not scatter due to the impact when the ink bottle is stopped. An object is to provide a bottle mounting device.

[0020]

According to a first aspect of the invention, a bottle guide having a bottle insertion chamber is provided on a rotary table, and an ink bottle can be inserted into the bottle insertion chamber from the outside of the apparatus by rotating the rotary table. The ink bottle inserted into the bottle insertion chamber is rotatably provided between the bottle insertion position in which the ink bottle inserted into the bottle insertion chamber is accommodated, and the ink ejection port of the ink bottle inserted into the bottle insertion chamber is In the ink bottle mounting device that is mounted on the ink suction port, the ink suction port is rotatably provided together with the rotary table.

In this ink bottle mounting device, when the ink bottle is inserted into the bottle insertion chamber at the bottle replacement position on the rotary table, the ink ejection port of the inserted ink bottle is mounted on the ink suction port. .

A second aspect of the present invention is the ink bottle mounting device according to the first aspect, wherein the ink suction portion is a fixed ink circulating portion via a connecting portion with each other about a rotation center of the rotary table. Is rotatably provided, and both the ink flow passages in the ink suction portion and the fixed ink circulation portion are connected to each other in the connecting portion.

According to this ink bottle mounting device,
In addition to the function of the invention described above, when the turntable is rotated, the ink suction port rotates while maintaining the ink circulation path with respect to the fixed ink circulation section.

According to a third aspect of the invention, there is provided the ink bottle mounting device according to the second aspect, in which a packing is interposed between the connection portions of the ink suction portion and the fixed ink circulation portion. Is characterized by.

According to this ink bottle mounting device,
In addition to the function of the invention described above, the ink circulation paths in the mutual connecting portions are reliably sealed from the outside.

According to a fourth aspect of the invention, there is provided the ink bottle mounting device according to the second aspect, wherein one end side of the ink suction port portion is the connecting portion of the fixed ink circulation portion and the other end side thereof is the rotation supporting member. , Each of which is rotatably supported.

According to this ink bottle mounting device,
In addition to the function of the invention described above, the ink sucking portion is supported on both end sides.

According to a fifth aspect of the present invention, there is provided the ink bottle mounting device according to the first aspect, wherein a rotary base locking means for locking the rotary base at the bottle housing position is provided, and the lock of the rotary base locking means is released. It is characterized in that a rotary base lock release lever is provided.

According to this ink bottle mounting device,
In addition to the function of the invention described above, the rotary table is locked at the bottle housing position and unlocked when the bottle is replaced.

According to a sixth aspect of the present invention, in the ink bottle mounting device according to the fifth aspect, the lock release lever of the rotary base lock release operation direction changes from a bottle accommodating position of the rotary base to a bottle replacement position. It is characterized in that it is set in the same direction as the rotation direction.

According to this ink bottle mounting device,
In addition to the operation of the invention of (1), unlocking of the rotary table and rotational movement of the rotary table are performed by one operation.

According to a seventh aspect of the present invention, there is provided the ink bottle mounting device according to the first aspect, wherein the ink bottle is moved in association with the rotation of the rotary table from the bottle accommodating position to the bottle replacement position, and the ink bottle is moved. It is characterized in that an automatic bottle withdrawing means for withdrawing the ink ejection port of the bottle from the ink suction port portion is provided.

According to this ink bottle mounting device,
In addition to the function of the invention described above, the ink bottle is automatically pulled out from the ink suction port during the rotation of the rotary table from the bottle accommodation position to the bottle replacement position.

The invention of claim 8 is the ink bottle mounting device according to claim 1, further comprising bottle locking means for locking the ink bottle mounted in the ink suction portion, the bottle locking means comprising: It is characterized in that it has a bottle pressing portion for pressing the back surface of the ink bottle, the bottle pressing portion is movable in the bottle inserting / pulling-out direction, and is biased by the biasing means in the bottle inserting direction.

According to this ink bottle mounting device,
In addition to the function of the invention described above, the ink bottle is reliably locked even if the substantial length of the ink bottle changes due to swelling of the ink bottle or the like.

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 7 show a case where the ink bottle mounting apparatus of one embodiment of the present invention is applied to a stencil printing apparatus,
1 is a perspective view of an ink bottle mounting device in which a turntable is located at a bottle storage position, FIG. 2 is a perspective view of an ink bottle mounting device in which a turntable is located between a bottle storage position and a bottle replacement position, and FIG. FIG. 4 is an exploded perspective view of the rotary base rotating mechanism, FIG. 5 is a cross-sectional view of the rotary base rotating mechanism, and FIG. 6 is an ink bottle viewed from the side. FIG. 7 is a perspective view of the mounting device, and FIG. 7 is a side view of the ink bottle mounting device. 1 to 3
In FIG. 6, the bottle guide 44 is omitted, and in FIG. 6, the bottle guide 44 and the automatic bottle withdrawing means 51 are omitted.

The ink bottle mounting device 40 is arranged at the same position in the stencil printer as in the conventional example.
That is, as shown in FIG. 1, the drum 3 supported by the drum supporting member 2 is arranged in the printer main body 1.
The outer surface of the printer main body 1 is covered with a main body case 4, and an opening 5 is provided in a part of the main body case 4. The opening 5 is adapted to be opened and closed by a lid 6. With the lid 6 open, the drum 3 is provided together with the drum supporting member 2 in the printer main body 1 so as to be freely inserted and pulled out by utilizing the opening 5. An ink bottle mounting device 40 is provided in an internal space between the side surface of the drum 3 and the opening 5 of the main body case 4 in a state where the drum 3 is inserted in the printer main body 1.

As shown in FIGS. 1 to 3, 6 and 7,
The ink bottle mounting device 40 has a fixed base 41 fixed to the opening 5 side of the drum support member 2 and a turntable 42 rotatably supported on the fixed base 41.
The turntable 42 is rotated by a turntable rotating mechanism 45 described later, and the ink bottle 12 is placed on the turntable 42.
Bottle guide 44 having bottle insertion chamber 43 for inserting
(Shown in FIG. 7). And the turntable 42
Rotation of the ink bottle 12 from the outside of the apparatus using the opening portion 5 allows the ink bottle 12 to be inserted into the bottle insertion chamber 43 (position in FIG. 3) and the ink bottle 12 inserted into the bottle insertion chamber 43 to be opened. It is rotatably movable between a bottle housing position (the position shown in FIGS. 1 and 7) for housing in the internal space of the portion 5. The bottle storage position is such that the ink bottle 12 is close to the drum 3 (horizontally placed).
It is supposed to be placed in.

As shown in FIGS. 4 and 5, the rotary base rotating mechanism 45 has a locking hole 42a provided in one end of the rotary base 42, which is a deformed hole. The locking hole 42a has an ink suction port. The portion 46 is locked so as to rotate integrally with the turntable 42. A substantially cylindrical connecting portion 46a is extended below the ink suction port 46 (one end side), and the connecting portion 48a of the fixed ink circulation portion 48 is rotatably supported by the connecting portion 46a. A rod support hole 46b is provided on the upper side (the other end side) of the ink suction portion 46, and a support rod portion 47, which is a rotation support member, is rotatably supported in the rod support hole 46b. The fixed ink circulation portion 48 is directly fixed to the fixed base 41, and the support rod portion 47 is fixed to the fixed base 41 via the bracket 47a.
Are rotatably supported via the ink suction port 46. Further, the ink suction port 46 is rotated together with the turntable 42 about the rotation center C of the turntable 42, and the turntable 4 is rotated.
The rotational position of the ink suction port portion 46 with respect to 2 is set to a rotational position at which the ink ejection port 12b of the ink bottle 12 inserted in the bottle insertion chamber 43 can be attached (connected).

Further, ink flow passages 46c and 48b are formed in the ink suction port portion 46 and the fixed ink flow portion 48, respectively, and both of these ink flow passages 46c and 48b are connected via both connection portions 46a and 48a. Connected.
A rubber packing 49 is provided between the connecting portions 46a and 48a.
Are provided, and as a result, the internal ink flow passage 46 is provided.
c and 48b are sealed to the outside. Further, as shown in FIG.
The lower part of the printer is connected to the ink supply pipe 50, and the ink is introduced into the printer main body 1 through the ink supply pipe 50.

As shown in FIGS. 1 to 3, the automatic bottle withdrawing means 51 is provided on the turntable 42 so as to be slidable in the insertion and withdrawal directions (arrow E and F directions) of the ink bottle 12. The slide member 52 and the first slide member 5
2 is a link member 53 for connecting the fixed base 41 to each other.
A locking member 55 that is rotatably supported by the first slide member 52 while the spring force of the torsion coil spring 54 is being applied, and is locked to a locked portion 57a of a second slide member 57 described later. The release pin 56 that is fixed to the fixed base 41 and releases the lock of the lock member 55, and the insertion / drawing-out direction (arrows E and F) of the ink bottle 12 on the turntable 42.
Second slide member 5 slidably provided in
7 and 7.

The second slide member 57 is provided in the bottle insertion chamber 4
3 has a bottle locking protrusion 57b that locks the front end surface of the ink bottle 12 inserted in the ink bottle 12, and the bottle connecting position where the ink ejection port 12b of the ink bottle 12 is attached (connected) to the ink suction port 46. The ink discharge port 12b of the ink bottle 12 can be moved to and from the bottle connection release position where it is separated from the ink suction port 46.

When the turntable 42 is rotated from the bottle accommodating position in FIG. 1 to the bottle replacement position side (J direction) in FIG. 3, the rotary member 42 is pressed by the link member 53 and the first slide member 52.
Slides in the direction of arrow E, and as shown in FIG. 2, the locking member 55 is locked by the locked portion 57a of the second slide member 57 and the second slide member 57 is also slid together in the direction of arrow E. It is like this. This second slide member 57
Ink ejection port 1 of ink bottle 12
2b is detached from (attached to) the ink suction port 46. The first slide member 52 and the second slide member 5 up to the position where the ink bottle 12 is released from the connection.
When 7 is slid, the locking member 55 is interfered by the release pin 56. Then, the locking member 55
Is rotated against the spring force of the torsion coil spring 54, and the locked state between the second slide member 57 and the locking member 55 is released. The sliding of the second slide member 57 in the arrow E direction is stopped here. The first slide member 52 is slid in the arrow E direction even after the second slide member 57 is stopped sliding,
Has reached the bottle replacement position in FIG. 3 and is stopped when the rotation is completed. In the bottle replacement position of FIG. 3, since the locking member 55 is located at the locking release position, the second slide member 57 moves in the bottle insertion / withdrawal direction (arrows E and F).
(Direction) slide is free. That is, the automatic bottle withdrawing means 51 moves the ink bottle 12 when the rotary table 42 moves from the bottle accommodating position to the bottle replacing position.
However, the insertion / withdrawal operation of the ink bottle 12 is not hindered at the bottle replacement position.

As shown in FIGS. 6 and 7, the rotary base locking means 60 is provided by bending the lower end side of the rotary base 42 and the locking arm 61 rotatably supported on the fixed base 41. Locking plate portion 63. The locking arm 61 is urged by a spring force of a torsion coil spring 64 in a direction in which a tip portion 61 a of the locking arm 61 comes into close contact with the fixed base 41 (arrow G direction), and the locking plate portion 63 has a locking arm 61. Locking hole 63 into which the front end portion 61a is inserted
a is formed. Further, a support shaft 65 is erected vertically on the bracket 62, and a rotary base lock release lever 66 is rotatably supported on the support shaft 65.

A lock releasing portion 67 is provided on the lower end side of the rotary base lock releasing lever 66 by bending. The rotary base lock release lever 66 is urged by a spring force of a torsion coil spring 68 in the direction of arrow I. By rotating the rotary base lock release lever 66 in the direction of arrow J against the spring force, the lock release unit is unlocked. 67 shifts from the solid line position in FIG. 7 to the virtual line position, and the locking arm 61 is pushed up from the solid line position in FIG. 7 to the virtual line position so that the locking can be released. Further, the release operation direction (J direction) of the rotary base lock release lever 66 is set to be the same as the rotational direction (J direction) of the rotary base 42 from the bottle accommodation position to the bottle replacement position.

When the rotary table 42 is rotated from the bottle replacement position shown in FIG. 3 to the bottle accommodation position shown in FIG. 1, the rotary table 4 is rotated.
The locking plate portion 63 that rotates together with the locking arm 61
Abutting against the front end portion 61a of the rotary table 42
When the locking plate portion 63 rotates, the locking arm 61 rotates in the direction of arrow H against the spring force of the torsion coil spring 64 by the pressing force from the locking plate portion 63, and the locking plate portion 63 rotates. 63 is inserted between the fixed base 41 and the front end portion 61a of the locking arm 61. Then, when the rotary table 42 is rotated to the bottle accommodating position in FIG. 1, the positions of the locking holes 63a of the locking plate 63 and the distal end portions 61a of the locking arms 61 are aligned and the distal end portions of the locking arms 61 are aligned. 61a is inserted into the locking hole 63a of the locking plate portion 63 by the spring force of the torsion coil spring 64, whereby the rotary table 42 is locked at the bottle housing position. Furthermore, the rotary base lock release lever 6
When 6 is released in the direction of arrow J, the lock release portion 67 shifts from the solid line position in FIG.
The lock of No. 1 is released, and the turntable 42 becomes rotatable.

As shown in FIG. 6, bottle locking means 70
Has a bottle lock operation lever 73 in which a long hole 72a is inserted in a guide pin 71 fixed to a rotary base lock release lever 66 fixed rotatably by a shaft 65 fixed to a bracket 62. The operation lever 73, together with the rotary base lock release lever 66, rotationally moves as shown by the solid line in FIG. 3 to allow the insertion of the ink bottle 12 into the bottle insertion chamber 43, and as shown by the phantom line in FIG. The torsion coil spring 68 rotates in the direction of arrow I by the spring force of the torsion coil spring 68 to press the back surface of the ink bottle 12 with the bottle pressing portion 73a.

Further, by pulling the bottle lock operating lever 73 in the direction of arrow E, the position of the bottle pressing portion 73a can be adjusted so as to be separated from the ink suction port 46. Here, the tension coil spring 7
The spring force of 4 is set so that the ink ejection port 12b of the ink bottle 12 can be attached to the ink suction port 46 from the unattached state.

Next, the replacement work of the ink bottle 12 of the ink bottle mounting device 40 will be described. Before replacement,
Since the ink bottle mounting device 40 is in the ink supply ready state, as shown in FIGS.
Is at the bottle housing position, and the ink ejection port 12b of the ink bottle 12 is attached to the ink suction port 46.

First, when the lid 6 is set to the release position and the rotary base lock release lever 66 is rotated in the direction of arrow J in FIG.
The locking of the locking arm 61 with respect to the locking plate portion 63 is released. After the rotary base 42 is unlocked, when the rotary base lock release lever 66 is further rotated in the same manner as the arrow J direction in FIG. 1, the rotary base 42 and the ink suction port 46 together with the bottle replacement position side (the arrow J direction). ) Is rotated. Here, the ink ejection port 12b of the ink bottle 12 is attached to the ink suction port portion 46, but since the ink suction port portion 46 is also rotated together with the turntable 42, the ink ejection port 12b and the ink suction port portion are rotated. No unreasonable external force acts on the shaft 46.

By rotating the turntable 42, the second slide member 57 of the automatic bottle withdrawing means 51 is moved to the arrow E.
And the bottle locking projection 57b of the second slide member 57 presses the ink bottle 12 in the arrow E direction,
As a result, the ink ejection port 12b of the ink bottle 12 is separated from the ink suction port 46. Since the bottle lock operation lever 73 is rotating in the arrow J direction together with the rotary base lock release lever 66, the arrow E of the ink bottle 12 is shown.
The lock in the direction is released, and the ink bottle 12 is automatically pulled out.

When the rotary table 42 is rotated to the bottle replacement position shown in FIG. 3, the ink bottle 12 is moved to the bottle insertion chamber 4.
Pull out from 3. Then, the new ink bottle 12 is inserted into the bottle insertion chamber 43. When the ink bottle 12 is inserted into the bottle insertion chamber 43, the front end surface of the ink bottle 12 contacts the bottle locking protrusion 57b of the second slide member 57. When the ink bottle 12 is further inserted from this contact position, the second slide member 5 is inserted together with the insertion of the ink bottle 12.
7 slides in the direction of arrow F to insert the ink bottle 12 further into the back, and the ink ejection port 12b of the ink bottle 12
Is inserted until it is attached to the ink suction port 46. When the insertion of the ink bottle 12 is completed, the bottle lock operation lever 73 shifts to the position where the back surface of the ink bottle 12 is pressed by the spring force of the torsion coil spring 68 in the direction of arrow I, and the bottle lock state is established.

If the ink bottle 12 is substantially swelled due to swelling or the like, an operator pulls the bottle lock operation lever 73 on the back surface of the ink bottle 12 to operate it against the coil spring 74. The bottle pressing portion 73a is pressed against the back surface of the ink bottle 12 to lock the ink bottle 12 at the bottle connecting position.

Next, the rotary table 42 is rotated in the direction of arrow I to rotate it from the bottle replacement position of FIG. 3 to the intermediate position of FIG. 2 to the bottle storage position of FIG. When the rotary table 42 is rotated to the bottle housing position, the locking arm 61 of the rotary table locking means 60 is locked to the locking plate portion 63. As a result, the turntable 42 is locked at the bottle replacement position (the positions shown in FIGS. 1 and 7), and the replacement work is completed.

When the drum 3 is pulled out from the printer main body 1 for repairing the drum, replacing the drum, etc., the drum 3 can be pulled out together with the drum supporting member 2 by pulling out the drum supporting member 2 from the opening 5. .

As described above, in the ink bottle mounting device 40, since the ink suction port 46 is rotatably provided together with the rotary table 42, when the ink bottle 12 is inserted into the bottle insertion chamber 43 at the bottle replacement position of the rotary table 42. Since the ink ejection port 12b of the inserted ink bottle 12 is attached to the ink suction port 46, the ink will not be scattered by the impact when the ink bottle 12 is stopped. Further, in the conventional example, when rotating the rotary table at the bottle accommodating position to the bottle exchange position, the operation of the bottle connecting means 15 and the rotary operation of the rotary table 11 were required to the minimum necessary. Then, only the operation of rotating the turntable 42 is sufficient, and the operability is good. Furthermore, in the conventional example, in order to reliably protect the ink suction port portion 8, the first ink suction port protection means 30 and the second ink suction port protection means 30 are provided.
Although it was necessary to provide the ink suction port protection means 34, the present invention does not need to provide such protection means, which simplifies the configuration.

Further, the ink suction port portion 46 is provided on the turntable 42.
About the rotation center C of each of the connecting portions 46a, 48a
Rotatably provided in the fixed ink circulation unit 48 via
The ink flow passages 46c and 48b in both the ink suction port portion 46 and the fixed ink circulation portion 48 are connected to each other by the connecting portion 4 of both.
6a and 48a are communicated with each other, so that when the turntable 42 is rotated, the ink suction port 46 is fixed to the fixed ink circulation unit 4.
Since it rotates while holding the ink circulation paths 46c and 48b with respect to 8, almost no stress is exerted on components such as the ink suction port 46 and the fixed ink circulation portion 48.
That is, the ink can be supplied from the ink suction port 46 to the printing apparatus main body 1 side by using a flexible ink circulation pipe. However, in such means, the rotation table 42 is rotated to rotate the ink circulation pipe. However, such a problem does not occur if the configuration of the embodiment is adopted.

Further, since the rubber packing 49 is interposed between the connecting portions 46a, 48a of the ink suction portion 46 and the fixed ink circulating portion 48, the connecting portion 46 of each other.
Since the ink circulation paths 46c and 48b in the a and 48a are reliably sealed from the outside, ink can be supplied without causing ink leakage. In addition, the ink suction port 46
The lower end side of the connecting portion 48a of the fixed ink circulation portion 48,
Since the upper end side is rotatably supported by the support rod 47, the ink suction port 46 is supported at both ends, so that the ink suction port 46 rotates smoothly.
Strong against impact when the ink bottle 12 is attached or pulled out.

Further, since the rotary base locking means 60 for locking the rotary base 42 at the bottle accommodating position and the rotary base lock release lever 66 for unlocking the rotary base lock means 60 are provided, the rotary base 42 is accommodated in the bottle. Since it can be locked in the position, it is possible to prevent the rotary table 42 from moving by the action of some external force during the ink supply operation, and when the bottle is replaced, the rotary table can be moved to the bottle replacement position by unlocking. .

Further, the rotary base lock release lever 66 is
Since the unlocking operation direction is set in the same direction (the arrow J direction) as the rotation direction of the rotary table 42 from the bottle accommodating position to the bottle replacement position, the lock table 42 is unlocked and the rotary table 42 is rotated. Since it can be performed in one operation, operability is good.

Further, the bottle automatic withdrawing means for moving the ink bottle 12 in association with the rotation of the rotary table 42 from the bottle accommodating position to the bottle replacement position and withdrawing the ink ejection port 12b of the ink bottle 12 from the ink suction port 46. Since 51 is provided, the ink bottle 12 is automatically pulled out from the ink ejection port portion 46 during rotation of the rotary table 42 from the bottle accommodating position to the bottle replacement position, so that the ink bottle 12 is easily pulled out at the bottle replacement position. It is possible and has good operability.

Further, a bottle lock means 70 for locking the ink bottle 12 mounted on the ink suction port 46 is provided, and this bottle lock means 70 has a bottle pressing portion 73a for pressing the back surface of the ink bottle 12. The bottle pressing part 73a is movable in the bottle insertion / pulling direction,
Moreover, since the coil spring 74 is biased in the bottle insertion direction, the ink bottle 12 can be reliably locked even if the substantial length of the ink bottle 12 changes due to swelling of the ink bottle 12 or the like.

According to the above-described embodiment, the example in which the ink bottle mounting device is applied to the stencil printing device has been shown, but it is needless to say that the same can be applied to other printing devices and the like. Further, it goes without saying that the biasing means may be other than the tension coil spring.

[0065]

As described above, according to the first aspect of the present invention, the rotary table which is rotated between the bottle replacement position and the bottle storage position is provided, and the ink suction port is rotatable together with the rotary table. Since it is provided, when the ink bottle is inserted into the bottle insertion chamber at the bottle replacement position on the turntable, the ink ejection port of the inserted ink bottle is attached to the ink suction port, so that when the ink bottle is stopped Ink does not splash due to impact. Further, in the conventional example, when rotating the rotary table at the bottle accommodating position to the bottle replacement position, the operation of the bottle connecting means and the rotary operation of the rotary table were required at the minimum necessary, but in the present invention, the rotation is performed. Only the operation of rotating the table is enough and the operability is good. Also, in the conventional example,
Although it was necessary to provide the first ink suction port protection means and the second ink suction port protection means in order to reliably protect the ink suction port portion, the present invention does not need to provide such protection means, and the configuration is simplified. Become

According to the second aspect of the invention, when the turntable is rotated, the ink suction port rotates while maintaining the ink circulation path with respect to the fixed ink circulation unit. Almost no stress is applied to parts such as the distribution part.

According to the third aspect of the present invention, the packing interposed between the connecting portions of the ink sucking portion and the fixed ink circulating portion ensures that the ink circulating paths in the connecting portions are securely exposed to the outside. Since it is hermetically sealed, ink can be supplied without causing ink leakage.

According to the fourth aspect of the present invention, since the ink suction port is rotatably supported at both ends, the ink suction port rotates smoothly, and when the ink bottle is attached or pulled out. Strong against shock.

According to the fifth aspect of the present invention, since the rotary table can be locked at the bottle housing position by the rotary table locking means, it is possible to prevent the rotary table from moving due to some external force during the ink supply operation. When the bottle is replaced, the rotary table can be moved to the bottle replacement position by unlocking the rotary table lock release lever.

According to the invention of claim 6, since the lock release operation direction of the rotary base lock release lever is set to the same direction as the rotational direction of the rotary base from the bottle accommodation position to the bottle replacement position, the rotary base lock is performed. The release and the rotational movement of the turntable can be performed by one operation, and the operability can be improved.

According to the seventh aspect of the invention, the automatic bottle withdrawing means for withdrawing the ink ejection port of the ink bottle from the ink suction port portion is provided. The bottle can be automatically pulled out from the ink suction port, and operability can be improved.

According to the invention of claim 8, the bottle pressing portion of the bottle locking means for locking the ink bottle mounted on the ink suction portion is movable in the bottle inserting / pulling-out direction and is biased in the bottle inserting direction. Since the force is applied by the means, the ink bottle can be reliably locked even if the substantial length of the ink bottle changes due to swelling of the ink bottle or the like.

[Brief description of drawings]

FIG. 1 is a perspective view of an ink bottle mounting device according to an embodiment of the present invention, in which a rotary table is located at a bottle housing position.

FIG. 2 is a perspective view of the ink bottle mounting device according to the embodiment of the present invention, in which the rotary table is located between the bottle housing position and the bottle replacement position.

FIG. 3 is a perspective view of the ink bottle mounting device in which the turntable is located at the bottle replacement position according to the embodiment of the present invention.

FIG. 4 is an exploded perspective view of a rotary base rotation mechanism according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view of a rotary base rotation mechanism according to the embodiment of the present invention.

FIG. 6 is a perspective view of the ink bottle mounting device as seen from the side, showing the embodiment of the present invention.

FIG. 7 is a side view of the ink bottle mounting device according to the embodiment of the present invention.

FIG. 8 is an enlarged perspective view of a main part of the printing apparatus in which the rotary table of the ink bottle mounting apparatus is located at the bottle accommodating position in the conventional example.

FIG. 9 is a perspective view of a printing apparatus in which a rotary base of the ink bottle mounting apparatus is located at a bottle replacement position, showing a conventional example.

FIG. 10 is a perspective view of an ink bottle mounting device in which a rotary table is located at a bottle replacement position and a bottle guide is removed, showing a conventional example.

FIG. 11 shows a conventional example, in which the turntable is at the drum accommodation position,
In addition, it is a plan view of the ink bottle mounting device in which the ink bottle is located at the connection position.

FIG. 12 shows a conventional example, in which the rotary table is at the drum accommodation position,
In addition, it is a partially cutaway side view of the ink bottle mounting device in which the ink bottle is located at the connection position.

FIG. 13 shows a conventional example, in which the turntable is at the drum accommodation position,
In addition, it is a plan view of the ink bottle mounting device in which the ink bottle is located at the non-connection position.

FIG. 14 shows a conventional example, in which the turntable is at the drum accommodation position,
In addition, it is a partially cutaway side view of the ink bottle mounting device in which the ink bottle is located at the non-connection position.

[Explanation of symbols]

12 ink bottles 12b ink outlet 40 Ink bottle mounting device 42 turntable 46 Ink mouth 46a connection part 46c ink flow path 47 Support rod (rotary support member) 48 Fixed ink distribution section 48a connection part 48b ink flow path 49 Rubber packing (packing) 51 Automatic bottle withdrawal means 60 Rotating table locking means 66 Turntable lock release lever 70 Bottle locking means 73 Bottle lock operation lever 73a Bottle pressing part 74 Tension coil spring (biasing means)

Claims (8)

[Claims] 1. A bottle guide having a bottle insertion chamber is provided on a rotary table, and by rotating the rotary table, an ink bottle can be inserted into the bottle insertion chamber from the outside of the apparatus and is inserted into the bottle insertion chamber. The ink bottle is rotatably provided between the ink bottle and a bottle housing position housed in the apparatus, and the ink ejection port of the ink bottle inserted into the bottle insertion chamber is attached to the ink suction port. In an ink bottle mounting device, the ink suction part is provided rotatably together with the rotary table. 2. The ink bottle mounting device according to claim 1, wherein the ink suction portion is rotatably provided in the fixed ink circulation portion via a mutual coupling portion about a rotation center of the rotary table. The ink bottle mounting device is characterized in that both the ink flow passages in the ink suction portion and the fixed ink circulation portion are communicated with each other in the connecting portion. 3. The ink bottle mounting device according to claim 2, wherein packing is interposed between the connection portions of the ink suction port portion and the fixed ink circulation portion. Bottle mounting device. 4. The ink bottle mounting device according to claim 2, wherein the ink suction port is rotatably attached at one end to the connecting portion of the fixed ink flow unit and at the other end to a rotation support member. An ink bottle mounting device characterized by being supported. 5. The ink bottle mounting device according to claim 1, further comprising a rotary base lock means for locking the rotary base at the bottle accommodating position, and unlocking the rotary base lock means. An ink bottle mounting device having a lever. 6. The ink bottle mounting device according to claim 5, wherein the rotary base lock release lever has a lock release operation direction that is the same as a rotational direction of the rotary base from a bottle housing position to a bottle replacement position. Ink bottle mounting device characterized by being set to. 7. The ink bottle mounting device according to claim 1, wherein the ink bottle is moved in association with the rotation of the turntable from the bottle storage position to the bottle replacement position, and the ink ejection port of the ink bottle is moved. An ink bottle mounting device, characterized in that automatic bottle withdrawing means for withdrawing the ink from the ink suction port is provided. 8. The ink bottle mounting device according to claim 1, further comprising a bottle locking means for locking the ink bottle mounted on the ink suction portion, the bottle locking means locking the back surface of the ink bottle. An ink bottle mounting device having a bottle pressing portion for pressing, the bottle pressing portion being movable in the bottle inserting / withdrawing direction and being urged by the urging means in the bottle inserting direction.