JP5880140B2 - Impression cylinder installation jig and impression cylinder installation mechanism - Google Patents

Description

  The present invention relates to an impression cylinder installation jig for installing an impression cylinder bearing at a bearing installation location of an impression cylinder mounting apparatus, and an impression cylinder installation mechanism using such an impression cylinder installation jig.

  An impression cylinder used in a printing machine has a linearly extending shaft core, a pair of bearings provided at both ends of the shaft core, and a pressing portion made of rubber or the like provided around the shaft core. doing. Such an impression cylinder needs to be replaced at a certain frequency.

  Generally, the impression cylinder is attached to an impression cylinder attachment arm (impression cylinder attachment device) with a bearing. For this reason, when exchanging the impression cylinder as described above, it is necessary to move the bearing of the impression cylinder to the bearing installation location of the impression cylinder mounting arm. Conventionally, an L-shaped rail is installed on the impression cylinder mounting arm, a bearing is placed on the rail, and the bearing of the impression cylinder is slid by pushing the impression cylinder by hand. It was moved to the place.

  However, due to machining accuracy, it is necessary to provide a gap between the bearing side surface of the L-shaped rail and the bearing, and even if the bearing is moved on the rail, the bearing is translated exactly parallel to the rail. It was difficult to let For this reason, when using a self-aligning bearing as the bearing, the bearing may be installed on the impression cylinder mounting arm in a state where the outer ring and the inner ring of the bearing are twisted. If the outer ring and the inner ring of the bearing are twisted and installed in this way, there is a risk of an accident such as damage to the bearing during operation of the printing press.

  In this regard, for example, a technique for installing the bearing of the impression cylinder at a specified position of the arm for attaching the impression cylinder by finely adjusting the installation position of the bearing with an adjusting screw is known (see Patent Document 1).

  However, even the invention described in Patent Document 1 cannot eliminate the twisting of the outer ring and the inner ring of the bearing. Further, in the invention described in Patent Document 1, since the adjustment cylinder is finely adjusted after the impression cylinder is moved by sliding the bearing on the rail, a two-stage operation is required. When the exchange is frequently performed, it is a complicated operation.

Japanese Patent No. 2995964

  In view of the above points, an object of the present invention is to provide an impression cylinder installation jig and an impression cylinder installation mechanism for accurately and easily installing an impression cylinder bearing at a bearing installation location of an impression cylinder attachment device. And

The impression cylinder installation jig of the present invention is
A pressure drum installation jig for installing a pressure drum having a shaft core and a pair of bearings provided at both ends of the shaft core at a predetermined position of the pressure drum mounting device,
A pair of pinching portions that slidably hold the pair of bearings;
A connecting part for connecting each sandwiching part with each other;
A pair of wheel bodies rotatably contacting a pair of rails extending in parallel to the bearing installation location of the impression cylinder mounting device;
It has.

In the impression cylinder installation jig of the present invention,
Each wheel body consists of a pair of wheels sandwiching the rail,
One wheel of the pair of wheels is rotatably abutted against the opposite side surfaces of the rail,
The other wheel of the pair of wheels may abut on the opposite side surface of the rail so as to be rotatable.

In the above impression cylinder installation jig,
In the direction in which the rail extends, the one wheel and the other wheel may be located at the same position.

In the impression cylinder installation jig of the present invention,
Each wheel body consists of one wheel,
Each wheel may abut on the opposite side surface of the rail so as to be rotatable.

In the impression cylinder installation jig of the present invention,
Each wheel body consists of one wheel,
Each wheel may abut on the side surface opposite to the opposite side surface of the rail so as to be rotatable.

In the impression cylinder installation jig of the present invention,
Each wheel body has a plurality of pairs of a pair of wheels sandwiching the rail,
One wheel of the pair of wheels is rotatably abutted against the opposite side surfaces of the rail,
The other wheel of the pair of wheels may abut on the opposite side surface of the rail so as to be rotatable.

In the above impression cylinder installation jig,
In the direction in which the rail extends, the one wheel of the pair of wheels and the other wheel of the pair of wheels may be located at the same position.

The impression cylinder installation mechanism of the present invention is
A pressure drum installation mechanism for installing a pressure drum having a shaft core and a pair of bearings provided at both ends of the shaft core at a predetermined position of the pressure drum mounting device,
A pair of pinching portions that slidably hold the pair of bearings;
A connecting part for connecting each sandwiching part with each other;
A pair of rails extending in parallel to the bearing installation location of the impression cylinder mounting device;
A pair of wheel bodies rotatably contacting the pair of rails;
Is provided.

  According to the present invention, the impression cylinder installation jig is provided on the coupling portion, the coupling portion that couples the clamping portions to each other, the coupling portion that couples the respective clamping portions to each other, and the impression cylinder mounting device. A pair of wheel bodies rotatably contacting a pair of rails extending in parallel to the bearing installation location. For this reason, the bearing of an impression cylinder can be correctly installed in the bearing installation location of an impression cylinder attachment device only by positioning a bearing between the pinching parts of an impression cylinder installation jig, and pushing an impression cylinder installation jig.

The upper top view which showed the structure of the impression cylinder installation jig | tool by embodiment of this invention. The side view which showed the structure of the impression cylinder installation jig | tool by embodiment of this invention. The upper top view which showed the structure of the impression cylinder installation mechanism by embodiment of this invention. The figure for demonstrating the aspect by which an impression cylinder is installed in the arm for pressure cylinder attachment with the impression cylinder installation jig | tool by embodiment of this invention. Sectional drawing cut | disconnected by the straight line V-V 'shown in FIG. Sectional drawing cut | disconnected by the straight line VI-VI 'shown in FIG. The enlarged upper top view for demonstrating the relationship between the clamping part and bearing of the impression cylinder installation jig | tool by embodiment of this invention. The upper top view which showed the structure of the impression cylinder installation jig | tool by the modification 1 of embodiment of this invention. The upper top view which showed the structure of the impression cylinder installation jig | tool by the modification 2 of embodiment of this invention. The upper top view which showed the structure of the impression cylinder installation jig | tool by the modification 3 of embodiment of this invention. The figure which looked at the bearing installed by the impression cylinder installation mechanism by embodiment of this invention from the upper surface, and the figure which looked at the said bearing from the side. The upper top view for demonstrating the aspect which installs an impression cylinder in the impression cylinder attachment arm using a prior art. The figure which looked at the bearing installed in the impression cylinder attachment apparatus by the prior art from the upper surface, and the figure which looked at the said bearing from the side. The side view for demonstrating the general structure of a gravure printing machine.

Embodiment << Configuration >>
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an impression cylinder installation jig and an impression cylinder installation mechanism according to the present invention will be described with reference to the drawings. Here, FIG. 1 to FIG. 11 are diagrams for explaining an embodiment of the present invention. In the following description, a gravure printing machine is used. However, the present invention is not limited to this. For example, the present invention can be applied to an offset printing machine.

  In general, as shown in FIG. 14, the gravure printing machine includes an ink pan 93 for storing ink I, and a recess (cell) (not shown) provided on the surface of the ink I soaked in the ink I in the ink pan 93. A plate cylinder 90 embedded in the plate cylinder 90, provided to extend along the longitudinal direction of the plate cylinder 90, and provided to face the plate cylinder 90, a doctor 94 for wiping off excess ink I attached to the plate cylinder 90, An impression cylinder 50 that sandwiches the original fabric 98 with the plate cylinder 90 and a gold roll 91 for applying an appropriate pressure to the impression cylinder 50 are provided.

  The impression cylinder installation jig 10 and impression cylinder installation mechanism of the present embodiment are used to replace the impression cylinder 50 described above. More specifically, the impression cylinder 50 is attached to an impression cylinder attachment arm (impression cylinder attachment). It is used for installation at a bearing installation location 41 (see FIG. 4) of the device 40). FIG. 4 is a view showing a state in which the impression cylinder 50 is installed on the impression cylinder mounting arm 40 by the impression cylinder installation jig 10. In FIG. 4, only the impression cylinder mounting arm 40 is on the side. The other parts are shown in a side view.

  As shown in FIG. 3, the impression cylinder 50 includes a linearly extending shaft core 53, a pair of bearings 55 provided at both ends of the shaft core 53, rubber provided around the shaft core 53, and the like. The pressing part 51 which consists of. Of these, the bearing 55 is a radial bearing that receives a radial load. As shown in FIG. 11A, the bearing 55 is provided between an inner ring 56 provided on the shaft core 53, an outer ring 57 disposed outside the inner ring 56, and the inner ring 56 and the outer ring 57. And a plurality of rotating bodies 58. The rotating body 58 is composed of a sphere, a roller or the like.

  In the present embodiment, description will be made using the bearing 55 having such a configuration, but it is natural that the impression cylinder installation jig 10 and the impression cylinder installation mechanism of the present invention can also be applied to bearings other than such an aspect. is there. Further, the impression cylinder installation jig 10 and the impression cylinder installation mechanism of the present invention can be applied to any impression cylinder 50 used in a general printing machine, and the size and material of the impression cylinder 50 are not limited.

  As shown in FIG. 3, the impression cylinder installation mechanism of the present embodiment compresses a pair of rails 20 extending linearly in parallel to the bearing installation location 41 of the impression cylinder mounting arm 40 and a bearing 55 of the impression cylinder 50. And an impression cylinder installation jig 10 for conveying to the bearing installation location 41 of the cylinder attachment arm 40.

  Of these, the rail 20 extends linearly from the bearing installation location 41 of the impression cylinder mounting arm 40. As shown in FIG. 5, the rail 20 has a L-shaped cross section. The rail 20 has a long vertical long surface 21a extending in the vertical direction, a short vertical short surface 21b extending in the vertical direction, and a mounting surface 24 that extends in the horizontal direction and on which the bearing 55 is mounted. ,have. 5 is a cross-sectional view taken along the line V-V ′ shown in FIG. However, in FIG. 5, the impression cylinder 50 is shown not from a cross section but from a front view.

  As shown in FIGS. 1 and 2, the impression cylinder installation jig 10 is provided in a pair of sandwiching portions 5 that sandwich a pair of bearings 55, a connecting portion 15 that connects each sandwiching portion 5 to each other, and a connecting portion 15. And a pair of wheel bodies 11 that rotatably contact the pair of rails 20 described above. FIG. 1 is an upper plan view showing the configuration of the impression cylinder installation jig according to this embodiment, and FIG. 2 is a side view showing the configuration of the impression cylinder installation jig according to this embodiment.

  As shown in FIG. 1, each wheel body 11 of the present embodiment includes a pair of wheels 11 a and 11 b that sandwich the side surface of the rail 20. And as shown in FIG. 3, one wheel 11a of a pair of wheels 11a and 11b contacts a side surface (vertically long surface in this embodiment) 21a of the rail 20 so as to be rotatable, and the pair of wheels 11a, 11b, The other wheel 11b of 11b is in contact with a side surface (vertical short surface in the present embodiment) 21b opposite to the opposite side surface of the rail 20 so as to be rotatable. In the present embodiment, the vertical long surface 21 a is located on the side surface facing the rail 20 and the vertical short surface 21 b is located on the side surface opposite to the side surface facing the rail 20. However, it is not limited to this. A mode in which the vertical short surface is located on the side surface facing the rail 20 and the vertical long surface is located on the side surface opposite to the side surface facing the rail 20 can also be used.

  In the direction in which the rail 20 extends (X direction in FIG. 3), one wheel 11a and the other wheel 11b are located at the same position. In the claims of the present application, one wheel 11a and the other wheel 11b are located at the "same position", but this "same position" is located at exactly the same position. As well as being located in roughly the same position.

  As shown in FIG. 1, the connecting portion 15 includes a pair of first extending portions 12 extending linearly from the sandwiching portion 5 and the first extending portion between the pair of first extending portions 12. And a second extending portion 13 that extends linearly in a direction orthogonal to 12. In addition, a handle portion 14 that extends linearly in parallel with the pair of first extension portions 12 is provided at the center of the second extension portion 13. In the present embodiment, a pair of first extending portions 12 extending linearly from the sandwiching portion 5 and a handle portion 14 extending linearly in parallel with the pair of first extending portions 12 are provided. The first extending portion 12 and the handle portion 14 can be positioned in parallel with the rail 20 (see FIG. 3).

  As shown in FIG. 1, a support portion 18 extends from the first extension portion 12 in a direction orthogonal to the first extension portion 12. As shown in FIG. 2, from a predetermined position of the support portion 18, A rotating shaft 19 to which the wheels 11a and 11b are rotatably attached extends in the vertical direction.

  As shown in FIG. 3, the sandwiching portion 5 of the present embodiment has a U-shape when viewed from above, and can support the bearing 55 of the impression cylinder 50. Specifically, the sandwiching portion 5 is a pair of upper and lower surfaces 55a and 55b of the bearing 55, that is, a pair of two surfaces 55a and 55b along the extending direction of the shaft core 53 (Y direction side in FIG. 3). It has the 1st extension surface 6 and the 2nd extension surface 7 located in the side surface side (X direction side of FIG. 3) of the bearing 55. As shown in FIG. In the present embodiment, the second extending surface 7 comes into contact with the side surface of the bearing 55, so that the bearing 55 is pushed along the rail 20.

  As shown in FIG. 7, the gap W between the pair of first extending surfaces 6 is slightly larger than the thickness D of the bearing 55, and the first extending surface 6 and the bearing 55 are separated from each other. A slight gap will be formed between them. In addition, the process of the clamping part 5 can be processed with higher precision than the process of the rail 20. Therefore, a gap that is much narrower than the gap provided between the rail 20 and the bearing 55 in the prior art is interposed between the first extending surface 6 of the portion 5 and the upper and lower surfaces 55a and 55b of the bearing 55. Can be provided.

  In the present embodiment, as will be described later, a description will be given using a mode in which the impression cylinder installation jig 10 is pushed and moved by an operator, but the present invention is not limited thereto. For example, an impression cylinder installation jig moving device (not shown) for moving the impression cylinder installation jig 10 is provided, and the impression cylinder installation jig 10 is pushed and moved by the impression cylinder installation jig movement device. Can also be used.

《Action ・ Effect》
Hereinafter, the effect of the impression cylinder installation jig 10 and the impression cylinder installation mechanism having the above-described configuration will be described.

  First, the pair of bearings 55 of the impression cylinder 50 are placed on the placement surfaces 24 of the pair of rails 20 (see FIG. 5).

  Next, the impression cylinder installation jig 10 is positioned so that each bearing 55 is positioned in each pinching portion 5 (see FIG. 3).

  Next, the impression cylinder installation jig 10 is pushed by the operator, the second extending surface 7 of the sandwiching portion 5 contacts the side surface of the bearing 55 of the impression cylinder 50, and the impression cylinder 50 is moved along the rail 20. (See FIG. 3).

  Finally, each of the bearings 55 of the impression cylinder 50 is transported to the bearing installation location 41 of the impression cylinder mounting arm 40 and installed at the bearing installation location 41.

  In the process as described above, according to the present embodiment, the bearing 55 of the impression cylinder 50 can be accurately and easily installed at the bearing installation location 41 of the impression cylinder mounting arm 40.

  That is, conventionally, it is necessary to provide a gap between the bearing 55 and the side surface 21c (see FIG. 5) on the bearing 55 side of the rail 20 from the relationship of processing accuracy, and the bearing 55 is moved on the rail 20. However, it was difficult to translate the bearing 55 exactly parallel to the rail 20 (see FIG. 12). Therefore, when the self-aligning bearing 55 is used as the bearing 55 as in the present embodiment, the bearing 55 may be installed on the impression cylinder mounting arm 40 with the outer ring 57 and the inner ring 56 being twisted. Yes (FIGS. 13 (a) and 13 (b)), there was a risk of accidents such as the bearing 55 being damaged during operation of the printing press. 13A is a view of the bearing 55 installed at the bearing installation location 41 according to the prior art as viewed from the upper surface 55a, and FIG. 13B is a view of the bearing 55 as viewed from the side. . On the other hand, FIG. 11A is a view of the bearing 55 installed by the impression cylinder installation mechanism according to the present embodiment as viewed from the upper surface 55a, and FIG. It is the figure seen from.

  According to the present embodiment, the impression cylinder installation jig 10 has a pair of wheels 11a and 11b that sandwich the side surface of the rail 20, and a pair of sandwiching portions 5 that sandwich the bearing 55 slidably. Yes. The gap provided between the pair of first extending surfaces 6 of the sandwiching portion 5 and the upper and lower surfaces 55a and 55b of the bearing 55 is larger than the gap provided between the rail 20 and the bearing 55 in the prior art. It can be much narrower. For this reason, according to the present embodiment, the bearing 55 can be accurately installed at the bearing installation location 41. Further, even when the self-aligning bearing 55 is used as in the present embodiment, it is possible to prevent the outer ring 57 and the inner ring 56 of the bearing 55 from being twisted, and as a result, during operation of the printing press. It is possible to prevent an accident such as the bearing 55 from being damaged.

  Further, according to the invention described in Patent Document 1, fine adjustment can be performed with the adjusting screw after the impression cylinder 50 is moved by sliding the bearing 55 on the rail 20. In the first place, the torsion of the outer ring 57 and the inner ring 56 of the bearing 55 cannot be corrected. Further, in the invention described in Patent Document 1, fine adjustment is performed with an adjusting screw after the impression cylinder 50 is moved, and thus two-stage work is required, and the impression cylinder 50 is frequently replaced. It has become a cumbersome task.

  In this regard, according to this embodiment, even when the self-aligning bearing 55 is used as described above, the outer ring 57 and the inner ring 56 of the bearing 55 can be prevented from being twisted. Further, according to the present embodiment, the bearing 55 can be accurately installed at the bearing installation location 41 simply by pressing the bearing 55 with the impression cylinder installation jig 10.

  In embodiment mentioned above, although each wheel body 11 demonstrated using the aspect which consists of a pair of wheel 11a, 11b which pinches | interposes the side surface of the rail 20, it is not restricted to this.

  For example, as shown in FIG. 8, each wheel body 11 may be composed of one wheel 11 a, and each wheel 11 a may be configured to rotatably contact the side surface 21 a facing the rail 20 (Modification 1). As shown in FIG. 9, each wheel body 11 is composed of a single wheel 11b, and each wheel 11b is configured to abut on the side surface 21b opposite to the side surface 21a opposite to the rail 20 so as to be rotatable. Good (Modification 2).

  As shown in FIG. 1, when each wheel body 11 is composed of a pair of wheels 11 a and 11 b that sandwich the side surface of the rail 20, the bearing 55 can be easily pushed in parallel to the rail 20. 9, it should be noted that the bearing 55 can be more accurately installed at the bearing installation location 41 as compared with an embodiment in which each wheel body 11 is composed of one wheel.

  From this point of view, each wheel body 11 has a plurality of pairs of wheels 11 a and 11 b sandwiching the rail 20, and one wheel 11 a of the pair of wheels 11 a and 11 b is rotatable to the side surface 21 a facing the rail 20. A mode in which the other wheel 11b of the pair of wheels 11a and 11b abuts on the side surface 21b opposite to the side surface 21a opposite to the rail 20 may be used (see FIG. 10) (Modification 3). . According to such an embodiment, as shown in FIG. 1, compared to a case where each wheel body 11 is composed of a pair of wheels 11 a and 11 b that sandwich the side surface of the rail 20, the bearing 55 is provided more at the bearing installation location 41. It is excellent in that it can be installed accurately. In the mode shown in FIG. 10, in the direction in which the rail 20 extends (X direction in FIG. 10), one wheel 11a of the pair of wheels 11a and 11b and the other wheel 11b of the pair of wheels 11a are at the same position. Is located.

  FIG. 10 shows an example in which each wheel body 11 has two pairs of wheels 11a and 11b sandwiching the rail 20, but the present invention is not limited to this, and each wheel body 11 is a rail. Three or more pairs of wheels 11 a and 11 b sandwiching 20 may be provided.

  Moreover, in the aspect shown in FIG. 3 and the aspect shown in FIG. 10, it demonstrated using the aspect in which one wheel 11a and the other wheel 11b are located in the same position in the direction where the rail 20 extends. However, the present invention is not limited to this, and in the direction in which the rail 20 extends, one wheel 11a and the other wheel 11b may be located at different positions, i.e., "displaced" positions.

  However, the direction in which the one wheel 11a and the other wheel 11b are located at the same position in the extending direction of the rail 20 is easier to push the bearing 55 parallel to the rail 20, and the rail 20 extends. It should be noted that the bearing 55 can be more accurately installed at the bearing installation location 41 as compared to a mode in which one wheel 11a and the other wheel 11b are located at different positions in the direction.

5 Clamping portion 6 First extending surface 7 Second extending surface 10 Impression cylinder installation jig 11 Wheel body 11a One wheel 11b The other wheel 12 First extending portion 13 Second extending portion 14 Handle portion 15 Connecting portion DESCRIPTION OF SYMBOLS 18 Support part 19 Rotating shaft 20 Rail 21a Vertical long surface 21b Vertical short surface 24 Mounting surface 40 Impression cylinder attachment arm (impression cylinder attachment device)
41 Bearing installation location 50 Impression cylinder 51 Pressing portion 53 Axle core 55 Bearing 55a Bearing upper surface 55b Bearing lower surface

Claims (8)

A pressure drum installation jig for installing a pressure drum having a shaft core and a pair of bearings provided at both ends of the shaft core at a predetermined position of the pressure drum mounting device,
A pair of pinching portions that slidably hold the pair of bearings;
A connecting part for connecting each sandwiching part with each other;
A pair of wheel bodies rotatably contacting a pair of rails extending in parallel to the bearing installation location of the impression cylinder mounting device;
An impression cylinder installation jig characterized by comprising: Each wheel body consists of a pair of wheels sandwiching the rail,
One wheel of the pair of wheels is rotatably abutted against the opposite side surfaces of the rail,
2. The impression cylinder installation jig according to claim 1, wherein the other wheel of the pair of wheels is rotatably in contact with a side surface opposite to a side surface facing the rail.   The impression cylinder installation jig according to claim 2, wherein the one wheel and the other wheel are located at the same position in the direction in which the rail extends. Each wheel body consists of one wheel,
2. The impression cylinder installation jig according to claim 1, wherein each of the wheels is rotatably abutted on an opposite side surface of the rail. Each wheel body consists of one wheel,
2. The impression cylinder installation jig according to claim 1, wherein each wheel is rotatably abutted against a side surface opposite to a side surface facing the rail. Each wheel body has a plurality of pairs of a pair of wheels sandwiching the rail,
One wheel of the pair of wheels is rotatably abutted against the opposite side surfaces of the rail,
2. The impression cylinder installation jig according to claim 1, wherein the other wheel of the pair of wheels is rotatably in contact with a side surface opposite to a side surface facing the rail.   The impression cylinder installation according to claim 6, wherein the one wheel of the pair of wheels and the other wheel of the pair of wheels are located at the same position in the direction in which the rail extends. jig. A pressure drum installation mechanism for installing a pressure drum having a shaft core and a pair of bearings provided at both ends of the shaft core at a predetermined position of the pressure drum mounting device,
A pair of pinching portions that slidably hold the pair of bearings;
A connecting part for connecting each sandwiching part with each other;
A pair of rails extending in parallel to the bearing installation location of the impression cylinder mounting device;
A pair of wheel bodies rotatably contacting the pair of rails;
An impression cylinder installation mechanism characterized by comprising:

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