JP2018103605A - Liquid transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily perform exchange of a roller in a liquid transfer device.SOLUTION: A liquid transfer device comprises: a roller 14 which transfers a supplied liquid to a rubber cylinder 13; a roller holding device 31 which detachably holds plural rollers 14, and moves optional one roller 14 of the plural rollers 14 to a prescribed position at which said roller faces the rubber cylinder 13 by a rotational motion; and attachment/detachment means 35 which attaches/detaches the roller 14, which is held by the roller holding device 31 and is positioned at the prescribed position, to the rubber cylinder 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a liquid transfer device in a printing press.

  In a liquid transfer apparatus that transfers a liquid (for example, a coating liquid such as varnish) to a printing medium (sheet or web), a pressure drum that conveys the printing medium and a coater cylinder (rubber cylinder) that contacts the pressure drum And an anilox roller (engraving roller) that contacts the coater cylinder. The liquid supplied to the anilox roller by the liquid supply device (chamber device) is transferred to the printing medium on the impression cylinder via the coater cylinder.

  Various anilox rollers are properly used for transferring the liquid to the printing medium by the liquid transfer device depending on the printing contents on the printing medium. These various anilox rollers have different engraving cell shapes and cell volumes formed on the surface thereof. Therefore, when the printing contents are changed in the printing apparatus, the anilox roller may be changed (replaced) in the liquid transfer apparatus depending on the printing contents. As a technique for exchanging the anilox roller in such a liquid transfer apparatus, for example, there is one described in Patent Document 1.

JP 2003-319331 A

  In the technique described in Patent Document 1, a revolver magazine capable of holding four screen rollers is provided on an upper portion of a cylinder (plate cylinder or blanket cylinder), and the screen roller to be used is placed at a specified position by rotating the revolver magazine. The screen roller positioned at the specified position is moved to an active position (printing position) where the operator contacts the cylinder with a crane.

  However, in the technique described in Patent Document 1, an operator must perform a roller replacement operation (operation to move to a printing position) using a crane between narrow units in a printing press. Such a roller replacement operation using a crane between narrow units is poor in workability and requires time.

  Moreover, since an operator moves (conveys) a roller by a crane between narrow units, there exists a possibility of making the said roller contact the peripheral member. The roller or the peripheral member may be damaged due to the contact between the roller and the peripheral member.

  SUMMARY An advantage of some aspects of the invention is that a roller in a liquid transfer apparatus can be easily replaced.

  A liquid transfer device according to a first aspect of the present invention for solving the above-described problems is a roller for transferring a supplied liquid to a rubber cylinder, and a plurality of the rollers are detachably held, and any of the plurality of rollers can be rotated by a rotation operation. A roller holding device that moves one of the rollers to a predetermined position facing the rubber cylinder, and an attaching / detaching means that is held by the roller holding device and attaches / detaches the roller located at the predetermined position to the rubber cylinder. It is provided with.

  A liquid transfer apparatus according to a second invention for solving the above-mentioned problems is characterized in that in the liquid transfer apparatus according to the first invention, positioning means for determining a position of the roller with respect to the roller holding device is provided.

  A liquid transfer apparatus according to a third invention for solving the above-mentioned problems is the liquid transfer apparatus according to the first or second invention, wherein the position of the roller held at the roller holding device and positioned at the predetermined position is fixed. The position fixing means is provided.

  A liquid transfer apparatus according to a fourth invention for solving the above-mentioned problems is a liquid transfer apparatus according to any one of the first to third inventions, wherein the printing pressure adjustment for adjusting the printing pressure between the roller and the rubber cylinder is performed. Means are provided.

  According to the liquid transfer device according to the first aspect of the invention, the operator does not need to perform roller replacement work (work to move to the printing position) using a crane between narrow units in the printing press, and the roller in the liquid transfer device. Can be easily exchanged. Therefore, there is no possibility that the roller or the peripheral member is damaged by bringing the roller into contact with the peripheral member.

  According to the liquid transfer device of the second invention, the roller held by the roller holding device can be moved to an arbitrary position (phase) by the rotation operation of the roller holding device.

  According to the liquid transfer device of the third invention, the roller can be attached to and detached from the rubber cylinder at the same position at all times.

  According to the liquid transfer device of the fourth invention, the state of the liquid to be transferred can be adjusted.

1 is an explanatory diagram illustrating a configuration of a liquid transfer apparatus according to Embodiment 1. FIG. FIG. 2 is an explanatory diagram illustrating a configuration of the liquid transfer apparatus according to the first embodiment (a cross-sectional view taken along the line II-II in FIG. 1). FIG. 3 is an explanatory diagram illustrating a configuration of a magazine rotation device in the liquid transfer device according to the first embodiment. FIG. 6 is an explanatory diagram (viewed along arrow IV in FIG. 3) illustrating a configuration of a magazine rotation device in the liquid transfer device according to the first embodiment. FIG. 3 is an explanatory diagram illustrating a configuration of a magazine positioning device in the liquid transfer device according to the first embodiment. FIG. 6 is an explanatory diagram (viewed in the direction of arrow VI in FIG. 5) illustrating the configuration of the magazine positioning device in the liquid transfer device according to the first embodiment. FIG. 3 is an explanatory diagram illustrating a configuration of a roller attaching / detaching device in the liquid transfer device according to the first embodiment. FIG. 8 is an explanatory diagram (a view taken along arrow VIII in FIG. 7) illustrating a configuration of a roller attaching / detaching device in the liquid transfer device according to the first embodiment. FIG. 3 is an explanatory diagram illustrating a configuration of a roller rotation device in the liquid transfer device according to the first embodiment. FIG. 3 is a block diagram illustrating a control device in the liquid transfer apparatus according to the first embodiment. FIG. 3 is an explanatory diagram (corresponding to FIG. 1) illustrating an example in which an automatic cleaning device is additionally provided in the liquid transfer device according to the first embodiment. FIG. 3 is a block diagram illustrating an example in which roller replacement of the liquid transfer apparatus according to Embodiment 1 is automated. FIG. 3 is a block diagram illustrating an example in which roller replacement of the liquid transfer apparatus according to Embodiment 1 is automated. FIG. 6 is an explanatory diagram (corresponding to FIG. 5) illustrating an example in which a scattering prevention device is additionally provided in the liquid transfer device according to the first embodiment. It is explanatory drawing (B arrow view in FIG. 14A) which shows the example which added the scattering prevention apparatus to the liquid transfer apparatus which concerns on Example 1. FIG. It is explanatory drawing (C arrow line view in FIG. 14A) which shows the example which added the scattering prevention apparatus to the liquid transfer apparatus which concerns on Example 1. FIG.

  Hereinafter, embodiments of a liquid transfer apparatus according to the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, the liquid transfer apparatus according to the present invention is used in a coating apparatus in a printing press. Needless to say, the present invention is not limited to the following examples, and various modifications can be made without departing from the spirit of the present invention.

  The configuration of the coating apparatus according to the present embodiment will be described with reference to FIGS.

  As shown in FIG. 1, a coating device (liquid transfer device) 1 is provided with a housing 11 which is an outer shell thereof, and a sheet can be held in this housing 11 (a sheet holding device (not shown) is provided). An impression cylinder 12, a coater cylinder (rubber cylinder) 13 that contacts the impression cylinder 12, and the coater cylinder 13 that is positioned on the upper side in the vertical direction of the coater cylinder 13 (the upper side in FIG. 1). An anilox roller (engraving cylinder, roller) 14 is provided in contact therewith. Here, the impression cylinder 12 conveys the sheet | seat by hold | maintaining and rotatingly driving the sheet | seat supplied from the sheet supply apparatus (or printing apparatus etc.) which is not shown in figure.

  Further, the coating apparatus 1 is provided with a chamber apparatus (liquid supply apparatus) 15 capable of supplying a liquid (for example, a coating liquid such as varnish) to the anilox roller 14 in contact with the coater cylinder 13. In the coating apparatus 1, when the sheet is conveyed on the impression cylinder 12, the coating liquid supplied to the anilox roller 14 by the chamber apparatus 15 is transferred (coated) to the surface of the sheet via the coater cylinder 13. It is like that.

  The coating apparatus 1 holds a plurality (four in this embodiment) of anilox rollers 14 and one of the plurality of anilox rollers 14 faces a coater cylinder 13 at a predetermined position (transfer operation position). The anilox roller exchanging device 16 is provided so that the anilox roller 14 can be attached to and detached from the coater cylinder 13 (movable to the attachment position and the removal position).

  As shown in FIG. 1 and FIG. 2, the anilox roller 14 includes a barrel portion 21 having a surface formed with a sculpture having a predetermined cell shape and cell volume, a rotation shaft portion 22 that is a rotation center of the barrel portion 21, and The rotary shaft portion 22 is schematically constituted by attachment portions 23 provided on both sides in the axial direction (left and right direction in FIG. 2) of the rotary shaft portion 22.

  An anilox roller 14 for transferring the coating liquid onto the sheet on the impression cylinder 12 (in contact with the coater cylinder 13) is one of the anilox rollers 14 held by the anilox roller exchanging device 16, and is in a transfer operation position. The anilox roller 14 has been moved from the disengaged position to the worn position (in FIG. 1, the lower position).

  As shown in FIGS. 1 and 2, the anilox roller exchanging device 16 is provided with a roller magazine (roller holding device) 31 that detachably holds a plurality of anilox rollers 14.

  The roller magazine 31 passes through the frame 17 of the coating apparatus 1 and is rotatably supported by the frame 17, and the radial direction from the inner side in the axial direction of the rotary shaft portions 41 a and 41 b (in FIG. 2). Is provided between two side plate portions 42 extending in the vertical direction), a plurality of mounting grooves 43 formed on the side plate portions 42 and opening outward in the radial direction, and mounting grooves 43 adjacent in the circumferential direction. A connecting portion 44 that connects the two side plate portions 42 is schematically configured.

  The mounting groove 43 is formed so as to be able to engage with the mounting portion 23 of the anilox roller 14, and positioning pin holes 24 and 45 are formed in the mounting portion 23 and the mounting groove 43, respectively. Therefore, the anilox roller 14 is positioned with respect to the roller magazine 31 by the positioning pin 25 in a state where the mounting portions 23 on both axial sides thereof are engaged with the mounting grooves 43 of the roller magazine 31, and the roller is fixed by the fixing bolt 26. It is fixed to the magazine 31.

  A plurality of attachment grooves 43 are provided at equal angular intervals around the rotation axis of the roller magazine 31 (four in this embodiment at intervals of 90 °). That is, the plurality of anilox rollers 14 are arranged in different phases around the rotation axis of the roller magazine 31 and are supported so as to be rotatable around a rotation axis parallel to the rotation axis of the roller magazine 31.

  As shown in FIGS. 2 to 4, the anilox roller exchange device 16 is provided with a magazine rotation device 32 that rotates the roller magazine 31 around the rotation axis.

  The magazine rotation device 32 includes a magazine rotation gear (spur gear) 51 attached to a rotation shaft portion 41a on one side in the axial direction of the roller magazine 31 (left side in FIGS. 2 and 3), and the magazine rotation gear 51. A first coupling gear (spur gear) 52 that meshes with the first coupling gear 52, a second coupling gear (worm gear) 54 that rotates coaxially via the coupling shaft 53, and a motor that meshes with the second coupling gear 54. A rotation gear (worm gear) 55 and a magazine rotation motor 57 connected to the motor rotation gear 55 via a motor rotation shaft 56 are schematically configured. The connecting shaft 53 is rotatably supported by a sub frame 58 fixed to the frame 17, and the magazine rotation motor 57 is fixed to the sub frame 58.

  With the above configuration, when the magazine rotation motor 57 is driven to rotate in the magazine rotation device 32, the roller magazine 31 is moved together with the magazine rotation gear 51 via the motor rotation gear 55, the second connection gear 54, and the first connection gear 52. Driven by rotation. Thus, the anilox roller 14 can be rotated around the rotation axis of the roller magazine 31 by rotating the roller magazine 31 by the magazine rotating device 32.

  Here, as shown in FIG. 1, the anilox roller 14 is rotated by a roller magazine 31, for example, a transfer operation position (vertical direction) for transferring a liquid to a sheet on the impression cylinder 12 via the coater cylinder 13. The lower position (the lower position in FIG. 1), the replacement position for replacing the anilox roller 14 held by the roller magazine 31 with another anilox roller (the upper position in the vertical direction). 1 is an upper position), or a roller cleaning position for cleaning the anilox roller 14 (position on one side between the transfer operation position and the replacement position, and in FIG. ).

  As shown in FIGS. 2 to 4, the anilox roller exchange device 16 is provided with a magazine rotation detection device 33 that detects the rotation operation (rotation phase) of the roller magazine 31.

  The magazine rotation detection device 33 includes a first connection gear (spur gear) 61 provided on a rotation shaft portion 41a on one axial side of the roller magazine 31 and a second connection gear (spur gear) that meshes with the first connection gear 61. 62 and an encoder 63 connected to the second connection gear 62. The encoder 63 is fixed to a subframe 64 fixed to the frame 17.

  With the above configuration, when the first connecting gear 61 is rotationally driven together with the roller magazine 31 by the magazine rotating device 32, the second connecting gear 62 meshing with the first connecting gear 61 is rotationally driven. The rotation operation (rotation phase) is detected by the encoder 63.

  As shown in FIGS. 1, 5, and 6, the anilox roller exchanging device 16 includes a magazine positioning device 34 for positioning one (predetermined) anilox roller 14 held in the roller magazine 31 at the transfer operation position. Is provided.

  The magazine positioning device 34 includes a positioning roller 71 fixed to the roller magazine 31, a roller engaging member 72 that can be engaged with the positioning roller 71, and the roller engaging member 72 can be moved toward and away from the positioning roller 71. And a simple positioning cylinder 73.

  Here, a plurality of positioning rollers 71 are provided in the circumferential direction of the roller magazine 31 (four in this embodiment, the same number as the anilox roller 14), and the magazine positioning device 34 is held by the roller magazine 31. The positions (transfer operation positions) of the plurality of anilox rollers 14 can be individually adjusted.

  Specifically, in FIG. 6, the positioning roller 71-1 positioned at the upper right corresponds to the anilox roller 14-1 positioned at the lower side, and the positioning roller 71-2 positioned at the upper left is moved to the right. The positioning roller 71-3 corresponding to the anilox roller 14-2 positioned at the lower left and the positioning roller 71-3 positioned at the lower left corresponds to the anilox roller 14-3 positioned at the upper position and positioned at the lower right. 4 corresponds to the anilox roller 14-4 located on the left side.

  When the positioning cylinder 73 is extended, the roller engaging member 72 provided at the tip of the positioning cylinder 73 is engaged with the positioning roller 71 (71-1). Due to the engagement between the positioning roller 71 (71-1) and the roller engaging member 72, the movement of the positioning roller 71 (71-1) around the rotation axis (circumferential direction) of the roller magazine 31 is restricted. The rotational operation is restricted at a predetermined rotational phase. That is, in the roller magazine 31, the anilox roller 14 (14-1) corresponding to the positioning roller 71 (71-1) is positioned (fixed) at the transfer operation position.

  When the anilox roller 14 (14-1) held in the roller magazine 31 is positioned at the transfer operation position, the anilox roller 14 held on the opposite side (upper side in FIG. 1) of the roller magazine 31. (14-3) is positioned at the replacement position, and the anilox roller 14 (14-4) held in the meantime (left side in FIG. 1) is positioned at the cleaning position.

  On the other hand, when the positioning cylinder 73 is contracted, the engagement between the roller engaging member 72 provided at the tip of the positioning cylinder 73 and the positioning roller 71 is released. By releasing the engagement between the positioning roller 71 and the roller engaging member 72, the restriction of the rotation operation of the roller magazine 31 is released, and the anilox roller 14 held in the roller magazine 31 can be rotated.

  The plurality of positioning rollers 71 (17-1, 17-2, 17-3, 17-4) in the magazine positioning device 34 all have the same configuration, and engage with the roller engaging member 72 (the roller engaging member 72. A roller member 71a to be in contact with the formed wedge-shaped groove 72a, a disk-shaped roller holding member 71b that rotatably holds the roller member 71a, and the roller holding member 71b to be rotatable. And a main body 71c to be held in the main body. Here, the rotating shaft of the roller member 71a and the rotating shaft of the roller holding member 71b are shifted, that is, the roller member 71a and the roller holding member 71b are provided in the main body 71c in an eccentric state.

  The roller holding member 71b is split and fixed to the main body 71c by a screw member 71d. By rotating the roller holding member 71b by loosening the screw member 71d, the roller member 71a is orthogonal to the rotation axis with respect to the main body 71c. It is moved in the direction to do. That is, the rotational phase of the roller magazine 31 in which the rotational operation is regulated by the engagement (contact) between the positioning roller 71 (roller member 71a) and the roller engaging member 72 by the eccentric mechanism in the positioning roller 71, that is, the roller The position (transfer operation position) of the anilox roller 14 held by the magazine 31 can be adjusted.

  That is, the magazine positioning device 34 can individually adjust the plurality of positioning rollers 71 (71-1, 71-2, 71-3, 71-4), and these positioning rollers 71 (71- 1, 71-2, 71-3, 71-4), the transfer operation positions of the corresponding anilox rollers 14 (14-1, 14-2, 14-3, 14-4) are adjusted. It can be adjusted individually.

  The magazine positioning device 34 is provided with a guide roller 74 that guides the roller engaging member 72 when the positioning cylinder 73 expands and contracts (extends or contracts). The guide roller 74 is a roller member 74a that is in contact with a side surface (guide surface) 72b of the roller engaging member 72, a roller holding member 74b that rotatably holds the roller member 74a, and a roller holding member 74b that rotates. The main body portion 74c that can be held is schematically configured. Here, the rotating shaft of the roller member 74a and the rotating shaft of the roller holding member 74b are deviated, that is, the roller member 74a and the roller holding member 74b are provided in the main body 74c in an eccentric state.

  The roller holding member 74b is cleaved and fixed to the main body portion 74c by a screw member 74d. By rotating the roller holding member 74b by loosening the screw member 74d, the roller member 74a is orthogonal to the rotation axis with respect to the main body portion 74c. It is moved in the direction to do. That is, the guide roller 74 is guided by the contact between the guide roller 74 (roller member 74a) and the roller engaging member 72 (side surface 72b) corresponding to the position of the positioning roller 71 (roller member 71a) by the eccentric mechanism. The position of the roller engaging member 72 (engaging portion 72a) can be adjusted. Therefore, by adjusting the position of the roller engagement member 72, the engagement positions with all the positioning rollers 71 (71-1, 71-2, 71-3, 71-4) are changed. The transfer operation position of the anilox roller 14 (14-1, 14-2, 14-3, 14-4) can be adjusted at a time.

  Here, the positioning cylinder 73 and the guide roller 74 are fixed to a sub-frame 76 that is pin-coupled to the frame 17 via a pin member 75. The pin member 75 is fixed to the frame 17 and is inserted into a pin hole 76 a formed in the sub frame 76. The pin hole 76a is a long hole that is long in the vertical direction (vertical direction in FIG. 6), and the subframe 76 is supported so as to be movable only in the extending direction (vertical direction) of the pin hole 76a with respect to the frame 17. Has been. The rotating shafts 41 a and 41 b of the roller magazine 31 are supported by insertion holes 76 b formed in the subframe 76 via bearings 77 so that the rotation operation of the roller magazine 31 is not transmitted to the subframe 76. It has become.

  As shown in FIGS. 2, 7 and 8, the anilox roller exchanging device 16 has an anilox roller 14 positioned at a predetermined position facing the coater cylinder 13 approaching and separating from the coater cylinder 13 ( A roller attaching / detaching device 35 for attaching / detaching is provided.

  The roller attaching / detaching device 35 includes an eccentric bearing 81 that rotatably supports the rotating shaft portions 41a and 41b of the roller magazine 31, a first connecting member 82 to which one end of the eccentric bearing 81 is connected, and the first connecting member. The second connecting member 83 is connected to the other end portion of the second connecting portion 83, and the attaching / detaching motor 84 is connected to the other end portion of the second connecting member 83 via the attaching / detaching rod 84a.

  Here, the eccentric bearing 81 is fixed to a bearing hole 17a formed in the frame 17, an eccentric portion 81b rotatably supported by the fixed portion 81a, and eccentrically rotated by the eccentric portion 81b. The first connecting member 82 is connected to the eccentric portion 81 b in the eccentric bearing 81. The second connecting member 83 is pin-coupled to the frame 17 via a pin member 85 and is rotated (swinged) about the pin member 85 as a rotation center. The detachable motor 84 is fixed to a subframe 87 that is pin-coupled to the frame 17 via a pin member 86, and is supported rotatably with respect to the frame 17. The detachable rod 84a is moved (expanded / contracted) in the axial direction when the detachable motor 84 is driven.

  Therefore, in the roller attachment / detachment device 35, when the attachment / detachment rod 84a is moved in the axial direction (extension operation or contraction operation) by driving the attachment / detachment motor 84, the second connecting member 83 rotates (swings) around the pin member 85 as a rotation center. The first connecting member 82 is moved in the substantially axial direction (reciprocating motion), and the eccentric portion 81b of the eccentric bearing 81 is rotated with respect to the fixed portion 81a. In other words, the roller magazine 31 is moved in the direction orthogonal to the axial direction by the eccentric mechanism in the eccentric bearing 81, and the anilox roller 14 held in the roller magazine 31 is moved closer to and away from the coater cylinder 13.

  Here, in this embodiment, the detachable rod 84a is moved (extended) in the axial direction by the detachable motor 84 and is positioned at the first predetermined position (the first predetermined length, that is, the roller attachment position length). Then, it is assumed that the anilox roller 14 in the transfer operation position is positioned at the contact position with the coater cylinder 13 by the eccentric mechanism in the eccentric bearing 81. Further, the detachable rod 84a is moved (contracted) in the axial direction to the other side by the detachable motor 84 and is positioned at a second predetermined position different from the first predetermined position (second shorter than the first predetermined length). The anilox roller 14 in the transfer operation position is located at a position away from the coater cylinder 13 by the eccentric mechanism in the eccentric bearing 81. Then, the attachment / detachment rod 84a is moved in the axial direction in the vicinity of the first predetermined position by the attachment / detachment motor 84 (expanding / contracting operation in the vicinity of the first predetermined length), whereby the attachment by the eccentric mechanism in the eccentric bearing 81. The position adjustment, that is, the printing pressure between the coater cylinder 13 and the anilox roller 14 is adjusted.

  In this embodiment, the detachable motors 84 respectively connected to the rotation shaft portions 41a and 41b of the roller magazine 31 can be driven independently. Specifically, in FIG. 7, one attachment / detachment motor 84-1 connected to the rotation shaft portion 41a on one side in the axial direction of the roller magazine 31 and connection to the rotation shaft portion 41b on the other side in the axial direction of the roller magazine 31 are connected. The other attaching / detaching motor 84-2 is driven with the same phase or different phases.

  That is, the roller attaching / detaching device 35 drives the attaching / detaching motors 84 (84-1, 84-2) at the same phase, thereby moving the anilox roller 14 in parallel with the coater cylinder 13, and the attaching / detaching motor 84 (84). The anilox roller 14 can be tilted with respect to the coater cylinder 13 by driving -1,84-2) at different phases.

  Thus, by making the anilox roller 14 in contact with the coater cylinder 13 while being inclined with respect to the coater cylinder 13, a difference can be provided in the printing pressure between the coater cylinder 13 and the anilox roller 14 in the axial direction. Therefore, a coating in which the thickness of a liquid (for example, a coating liquid such as varnish) on the sheet changes in the axial direction can be applied.

  The roller attaching / detaching device 35 is provided with encoders 88-1, 88-2 connected to the attaching / detaching motor 84 (one attaching / detaching motor 84-1 and the other attaching / detaching motor 84-2). 88-1 and 88-2 indicate the rotational phase of the attachment / detachment motor 84 (one attachment / detachment motor 84-1 and the other attachment / detachment motor 84-2) (that is, the amount of movement of the attachment / detachment rod 84a, and the coater cylinder 13 and the anilox roller). 14) is detected.

  As shown in FIGS. 5 and 6, the subframe 76 connected to the roller magazine 31 via the bearing 77 is supported so as to be movable in the vertical direction with respect to the frame 17. By this operation, the roller magazine 31 is moved in the same direction (a direction perpendicular to the axial direction and in the vertical direction). Therefore, the positioning cylinder 73 and the guide roller 74 fixed to the subframe 76 are moved in the direction orthogonal to the axial direction together with the roller magazine 31 and the anilox roller 14 by the operation of the roller attaching / detaching device 35.

  As shown in FIGS. 2 and 9, the anilox roller exchanging device 16 is provided with a roller rotating device 36 that rotationally drives the anilox roller 14 held in the roller magazine 31.

  The roller rotating device 36 includes a plurality of roller gears 91 provided on the other axial side of the plurality of anilox rollers 14 held in the roller magazine 31 (the right side in FIGS. 2 and 9), and the plurality of roller gears 91. A roller rotation gear 92 that meshes with the roller gear 91 is provided. The roller rotation gear 92 is provided with a roller rotation gear shaft 93 protruding from the rotation center to the other side in the axial direction. The roller rotation gear shaft 93 is a rotation shaft portion 41b on the other side in the axial direction in the roller magazine 31. It is rotatably supported on the same axis.

  On the other axial end side of the roller rotation gear shaft 93, a roller interlocking rotation mechanism 94 that rotates the roller rotation gear shaft 93 in conjunction with the impression cylinder 12 and the roller rotation gear shaft 93 independent of the impression cylinder 12 are provided. A roller independent rotation mechanism 95 that is driven to rotate is provided, and the roller rotation gear shaft 93 is rotationally driven by the roller interlocking rotation mechanism 94 or the roller independent rotation mechanism 95.

  The roller interlocking rotation mechanism 94 includes a roller interlocking rotation gear 101 attached to the other axial end of the roller rotation gear shaft 93, a first interlocking gear 102 that meshes with the roller interlocking rotation gear 101, and the first interlocking gear 102. A second interlocking gear 103 that meshes with the second interlocking gear 103, a third interlocking gear 104 that meshes with the second coupling gear 103, and a pressure drum drive gear 105 that meshes with the third interlocking gear 104 and drives the pressure drum 12. Yes.

  Here, the first interlocking gear 102, the second interlocking gear 103, and the third interlocking gear 104 are rotatably supported by the frame 17, and the impression cylinder driving gear 105 is fixed to the impression cylinder 12. It is rotationally driven together with the impression cylinder 12. Further, the roller interlocking rotation gear 101 is provided with a clutch mechanism 101 a formed of a one-way clutch mechanism so that the rotation operation of the impression cylinder 12 is transmitted to the roller rotation gear shaft 93.

  In the roller interlocking rotation mechanism 94, when the impression cylinder 12, that is, the impression cylinder drive gear 105 is driven to rotate, the roller interlocking rotation gear via the third interlocking gear 104, the second interlocking gear 103, and the first interlocking gear 102. When the roller rotation gear shaft 93 is rotated together with the roller interlocking rotation gear 101, the plurality of anilox rollers 14 are driven to rotate via the roller rotation gear 92 and the roller gear 91. ing.

  The roller independent rotation mechanism 95 includes a roller independent rotation gear (spur gear) 111 attached to the other axial end of the roller rotation gear shaft 93 and a first connection gear (spur gear) 112 that meshes with the roller independent rotation gear 111. A second connection gear (spur gear) 114 rotated coaxially through the first connection gear 112 and the connection shaft 113, a motor rotation gear (spur gear) 115 meshing with the second connection gear 114, and The motor rotation gear 115 and a roller independent rotation motor 117 connected via a motor rotation shaft 116 are schematically configured.

  The connecting shaft 113 is supported by a subframe 118 fixed to the frame 17, and the roller independent rotation motor 117 is fixed to the subframe 119 fixed to the frame 17. Here, the first coupling gear 112 is provided with a clutch mechanism 112 a composed of a one-way clutch mechanism, and the rotation operation of the roller independent rotation motor 117 is transmitted to the roller rotation gear shaft 93 via the roller independent rotation gear 111. It has become so.

  In the roller independent rotation mechanism 95, when the roller independent rotation motor 117 is driven to rotate, the roller independent rotation gear 111 is driven to rotate via the motor rotation gear 115, the second connection gear 114, and the first connection gear 112. When the roller rotation gear shaft 93 is rotationally driven together with the roller independent rotation gear 111, the plurality of anilox rollers 14 are rotationally driven via the roller rotation gear 92 and the roller gear 91.

  As shown in FIGS. 1, 5, and 6, the chamber device 15 in the coating apparatus 1 includes a chamber 121 that contains the coating liquid and can be supplied to the anilox roller 14, a holding lever 122 that holds the chamber 121, The holding lever 122 is schematically composed of a pin member 123 projecting on both sides in the axial direction (left and right direction in FIG. 5), and a mounting plate 124 that rotatably supports the pin member 123 and is fixed to the subframe 76. Has been.

  The holding lever 122 is rotated with respect to the mounting plate 124 (subframe 76) together with the pin member 123, whereby the chamber 121 is moved toward and away from the anilox roller 14 at the transfer operation position. The chamber 121 is moved closer to and away from the anilox roller 14, thereby approaching the anilox roller 14 and supplying a coating liquid to the anilox roller 14 (see a solid line in FIG. 1), an anilox It is moved away from the roller 14 and moved between a retracted position (refer to a two-dot chain line in FIG. 1) for allowing rotation driving of the roller magazine 31 (rotational movement of the anilox roller 14). For example, the lever 122 is rotated by a driving source such as a motor or a cylinder, or manually by an operator.

  The chamber device 15 is provided with a chamber detection device 125 that can detect that the chamber device 15 is located at the retracted position. If the presence of the chamber device 15 is detected by the chamber detection device 125, it is determined that the chamber device 15 is located at the retracted position. On the other hand, if the presence of the chamber device 15 is not detected by the chamber detection device 125, It is determined that the chamber device 15 is not located at the retreat position but is located at the liquid supply operation position. Of course, a second chamber detection device (not shown) that can detect that the chamber device 15 is located at the liquid supply operation position may be provided.

  As shown in FIG. 1, the housing 11 in the coating apparatus 1 is provided with an opening 131 that opens to the upper side of the anilox roller exchanging device 16 (upward in the vertical direction and upward in FIG. 1). The opening 131 is provided with an open / close door 132 that opens toward the outside of the housing 11 (upward in the vertical direction and upward in FIG. 1).

  The opening 131 is for replacing the anilox roller 14 held in the roller magazine 31. By opening the open / close door 132, the operator can carry out the anilox roller 14 located at the replacement position using the crane from the opening 131 to the outside of the housing 11, and use the crane to make other An anilox roller can be carried into the housing 11 through the opening 131 and mounted on the anilox roller exchange device 16 (roller magazine 31).

  The anilox roller replacement operation in the anilox roller replacement device 16 is performed by an operator using a crane (not shown). This work space (the space on the upper side in the vertical direction of the housing 11 (coating device 1)) The operator can work easily, not between narrow units in the printing press.

  Further, the housing 11 in the coating apparatus 1 is provided with an opening 133 that opens to the side of the anilox roller exchange device 16 (on the side in the horizontal direction and to the right in FIG. 1). The opening 133 is provided with an opening / closing door 134 that opens toward the outside of the housing 11 (on the side in the horizontal direction and on the right side in FIG. 1).

  The opening 133 is for performing maintenance and inspection of the anilox roller exchange device 16 and the chamber device 15. An operator can access the anilox roller exchange device 16 and the chamber device 15 in the housing 11 through the opening 133 by opening the open / close door 134 to perform maintenance, inspection, and the like.

  The housing 11 in the coating apparatus 1 is provided with an opening 135 that opens to the side of the anilox roller replacement device 16 (on the side in the horizontal direction and to the left in FIG. 1). The opening 135 is provided with an opening / closing door 136 that opens toward the outside of the housing 11 (on the side in the horizontal direction and on the left in FIG. 1).

  The opening 135 is for cleaning the anilox roller 14 held in the roller magazine 31. The operator can access the anilox roller 14 located at the cleaning position from the opening 135 by opening the open / close door 136 to clean the anilox roller 14 and the like.

  Of course, the present invention is not limited to the case where the worker accesses the anilox roller 14 located at the cleaning position from the opening 135 and cleans the anilox roller 14 as in the present embodiment. For example, as shown in FIG. 11, an automatic cleaning device 141 that can approach and separate from the anilox roller 14 located at the cleaning position (left side in FIG. 11) and can clean the anilox roller 14 is provided. It may be. Even when the automatic cleaning device 141 is arranged in the housing 11 as described above, by providing the opening 135 and the open / close door 136, maintenance and inspection of the automatic cleaning device 141 in the housing 11 can be easily performed. be able to.

  As shown in FIG. 10, the coating apparatus 1 is provided with a control device 18 that controls the operation of the coating apparatus 1. The control device 18 is electrically connected to an impression cylinder 12 (including a not-shown impression cylinder driving device), a coater cylinder 13 (including a not-shown coating cylinder driving device), and a chamber device 15, respectively. The magazine rotating device 32, the magazine rotation detecting device 33, the magazine positioning device 34, the roller attaching / detaching device 35, and the roller rotating device 36 in the roller exchange device 16 are electrically connected.

  Further, the coating apparatus 1 is provided with a roller selection switch 19 operated by an operator as a roller selection apparatus (means) for selecting the anilox roller 14 to be used for coating (located at the transfer operation position). . The roller selection switch 19 is electrically connected to the control device 18, and the control device 18 controls the roller replacement operation of the coating apparatus 1 based on the signal transmitted from the roller selection switch 19. Yes.

  The operation of the coating apparatus according to the present embodiment will be described with reference to FIGS.

  In the coating apparatus 1, when the sheet held on the impression cylinder 12 passes through the contact position between the impression cylinder 12 and the coater cylinder 13, the coating liquid supplied to the anilox roller 14 by the chamber apparatus 15 is applied to the coater. It is transferred onto the surface of the sheet through the cylinder 13 (see FIG. 1).

  The transfer operation of the coating apparatus 1 is selected by the operator by operating the roller selection switch 19 (according to the printing content applied to the sheet) and the predetermined anilox roller 14 is in contact with the coater cylinder 13 at the transfer operation position. The process is performed in a state where the chamber 121 is in contact (positioned with the coater cylinder 13) and the chamber 121 is positioned in the liquid supply operation position (close to the anilox roller 14).

  Next, when the printing content to be applied to the sheet is changed in a printing apparatus (not shown), the anilox roller 14 is exchanged (roller exchange operation of the coating apparatus 1) as necessary. That is, in the coating apparatus 1, a predetermined anilox roller 14 corresponding to the printing content is selected based on the detection result of the roller selection switch 19, and the selected anilox roller 14 contacts the coater cylinder 13 at the transfer operation position. To be exchanged.

  Of course, the present invention is not limited to the one provided with the roller selection switch 19 as in this embodiment, and the operator selecting the anilox roller 14 to be used for coating by operating the roller selection switch. The selection of the anilox roller 14 to be used in the above may be automated.

  For example, as shown in FIG. 12, as a roller selection device that can be automated, a configuration in which a control device 218 and a printing device 219 are electrically connected, printing contents applied to a sheet, and printing of the printing contents are performed. A configuration (storage unit 218a) for storing an anilox roller selected for the selected sheet may be provided. In such a coating apparatus 201, the control apparatus 218 controls the operation of the anilox roller exchange apparatus 16 based on the information (signal) of the print content transmitted from the printing apparatus 219 and the information stored in the storage unit 218 a. To do. That is, when a sheet printed with the same printing content as before is used for coating, a predetermined anilox roller stored in the storage unit 18a is selected and a roller replacement operation is performed.

  Further, for example, as shown in FIG. 13, as a roller selection device that can be automated, it is provided with a print content detection device (camera) 319 that can read the print content (picture information etc.) applied to the sheet. May be. In such a coating apparatus 301, the control device 318 controls the operation of the anilox roller replacement device 16 based on the detection result of the print content detection device 319. That is, an appropriate anilox roller is selected according to the print content (pattern information, etc.) of the sheet detected by the print content detection device 319, and the roller replacement operation is performed.

  The roller replacement operation of the coating apparatus 1 will be described in detail below.

  First, the roller attaching / detaching device 35 is operated, and the anilox roller 14 currently in the transfer operation position is moved from the attachment position to the coater cylinder 13 to the removal position (see FIGS. 2, 7, and 8). That is, the attachment / detachment rod 84a is moved in the axial direction (reduction operation) by the drive of the attachment / detachment motor 84, and the second connecting member 83 is rotated to one side (left rotation in FIG. 8) with the pin member 85 as the rotation center. At the same time, the first connecting member 82 is moved to one side in the substantially axial direction (substantially upward in FIG. 8), and the eccentric portion 81b of the eccentric bearing 81 rotates to one side with respect to the fixed portion 81a (FIG. 8). Is rotated counterclockwise). Due to the eccentric operation of the eccentric bearing 81, the roller magazine 31 moves in a direction orthogonal to the axial direction, and the anilox roller 14 at the current transfer operation position is moved from the position where it is in contact with the coater cylinder 13 to the disengagement position.

  Next, the chamber device 15 is operated, and the chamber 121 is moved from the liquid supply operation position to the retracted position (see FIGS. 1 and 10). At this time, the chamber detection device 125 detects that the chamber 121 is positioned at the retracted position (the chamber 121 is not positioned at the liquid supply operation position), and the detection result is sent to the control device 18. When the above-described second chamber detection device (not shown) is provided, it is detected by the chamber detection device 125 that the chamber 121 is located at the retracted position, and the second chamber (not shown) The detection device detects that the chamber 121 is not located at the liquid supply operation position.

  Next, the magazine positioning device 34 is operated, and the roller magazine 31, that is, the anilox roller 14 becomes rotatable (see FIGS. 1, 5, and 6). That is, the positioning cylinder 73 is contracted, the engagement between the roller engaging member 72 and the positioning roller 71, that is, the restriction of the rotation operation of the roller magazine 31 is released, and the roller magazine 31 becomes rotatable.

  At this time, the control device 18 controls the operation of the magazine positioning device 34 (positioning cylinder 73) based on the detection result by the chamber detection device 125 (see FIG. 10). That is, the magazine positioning device 34 (positioning cylinder 73) is operated when the chamber detection device 125 detects that the chamber 121 is reliably located at the retracted position. This control reliably avoids interference between the roller magazine 31 and the anilox roller 14 and the chamber device 15 (chamber 121) when the roller magazine 31 is rotationally driven.

  Next, the magazine rotation device 32 is operated, and the selected anilox roller 14 is moved to the transfer operation position (see FIGS. 1 to 4). That is, the magazine rotation motor 57 is rotationally driven, and the roller magazine 31 is rotationally driven together with the magazine rotation gear 51 via the motor rotation gear 55, the second connection gear 54, and the first connection gear 52.

  At this time, the control device 18 controls the operation of the magazine rotation device 32 (magazine rotation motor 57) based on the detection result by the magazine rotation detection device 33 (see FIG. 10). The rotation operation of the roller magazine 31 by the magazine rotation motor 57, that is, the phase (position) of the anilox roller 14 held by the roller magazine 31 is detected by the magazine rotation detection device 33 (encoder 63), and the detection result is controlled. Sent to the device 18. Therefore, the control device 18 can determine that the roller magazine 31 has reached a predetermined phase, that is, that the selected anilox roller 14 has been positioned at the transfer operation position, and the roller magazine 31 has the predetermined phase. By stopping the rotation, the selected anilox roller 14 can be positioned at the transfer operation position.

  Next, the magazine positioning device 34 is operated, and the roller magazine 31, that is, the anilox roller 14 is positioned (see FIGS. 1, 5, and 6). That is, the positioning cylinder 73 is extended, the roller engaging member 72 is engaged with the positioning roller 71, and the movement of the positioning roller 71 around the rotation axis (circumferential direction) of the roller magazine 31, that is, the rotation operation of the roller magazine 31 is performed. It is regulated at a predetermined rotational phase (the position of the anilox roller 14 is fixed).

  Next, the chamber device 15 is operated, and the chamber 121 is moved from the retracted position to the liquid supply operating position (see FIGS. 1 and 10). At this time, the chamber detection device 125 detects that the chamber 121 is positioned at the liquid supply operation position (the chamber 121 is not positioned at the retracted position), and the detection result is sent to the control device 18. When the above-described second chamber detection device (not shown) is provided, it is detected by the chamber detection device 125 that the chamber 121 is not located at the retracted position, and the second chamber (not shown) The detection device detects that the chamber 121 is located at the liquid supply operation position.

  Next, the roller attaching / detaching device 35 is operated, and the selected anilox roller 14 is moved from the disengaged position from the coater cylinder 13 to the attached position (see FIGS. 2, 7 and 8). That is, the attachment / detachment rod 84a is moved in the axial direction (extension operation) by the drive of the attachment / detachment motor 84, and the second connecting member 83 is rotated to the other side with the pin member 85 as the rotation center (right rotation in FIG. 8). At the same time, the first connecting member 82 is moved to the other side in the substantially axial direction (substantially lower side in FIG. 8), and the eccentric portion 81b of the eccentric bearing 81 rotates to the other side with respect to the fixed portion 81a (in FIG. 8). Is rotated to the right). Due to the eccentric operation of the eccentric bearing 81, the roller magazine 31 moves in a direction perpendicular to the axial direction, and the selected anilox roller 14 is moved from the disengagement position with respect to the coater cylinder 13 to the attachment position.

  At this time, the control device 18 controls the operation of the roller attaching / detaching device 35 (attaching / detaching motor 84) based on the detection result by the chamber detecting device 125 (see FIG. 10). That is, when it is detected by the chamber detection device 125 that the chamber 121 is located at the liquid supply operation position (the chamber 121 is not located at the retracted position), the roller attachment / detachment device 35 (attachment / detachment motor 84) is Be operated. By this control, the anilox roller 14 is moved to a position where the anilox roller 14 is attached to the coater cylinder 13 in a state where the coating liquid is sufficiently supplied by the chamber device 15 (contacts the coater cylinder 13).

  Further, the control device 18 controls the operation of the roller attaching / detaching device 35 (attaching / detaching motors 84-1, 84-2) based on the detection results by the encoders 88-1, 88-2 (see FIGS. 7 and 10). That is, since the encoders 88-1, 88-2 detect the rotation phases of the attachment / detachment motors 84-1, 84-2, the control device 18 moves the attachment / detachment rod 84a, that is, the position of the anilox roller 14 ( (Including inclination) can be accurately determined, and the landing position and printing pressure of the anilox roller 14 can be adjusted accurately.

  As described above, the selected anilox roller 14 is in contact with the coater cylinder 13 at the transfer operation position (positioned at the contact position with the coater cylinder 13), and the chamber 121 is positioned at the liquid supply operation position (anilox roller). 14), and the transfer operation of the coating apparatus 1 is performed according to the printing content.

  The anilox roller 14 is rotationally driven by the roller interlocking rotation mechanism 94 of the roller rotation device 36 during the transfer operation of the coating apparatus 1, and is operated by the roller independent rotation mechanism 95 of the roller rotation device 36 during the roller replacement operation of the coating apparatus 1. Driven by rotation.

  In the transfer operation of the coating apparatus 1, the impression cylinder 12 (impression cylinder drive apparatus not shown) is driven to rotate at a higher speed than the roller independent rotation motor 117. Therefore, the anilox roller 14 is interlocked with the impression cylinder 12 by the roller interlocking rotation mechanism 94 when the rotation operation of the impression cylinder 12 is transmitted through the roller interlocking rotation mechanism 94 by the clutch mechanism 101a in the roller interlocking rotation gear 101. Is rotated. At this time, the rotation operation of the pressure drum 12 (the anilox roller 14 rotated by the roller interlocking rotation mechanism 94) is not transmitted to the roller independent rotation motor 117 by the clutch mechanism 112a in the first connection gear 112. In this way, by rotating the anilox roller 14 in conjunction with the impression cylinder 12 in the transfer operation of the coating apparatus 1, phase alignment with a printing apparatus (not shown) can be easily performed.

  On the other hand, in the roller replacement operation of the coating apparatus 1, the driving of the impression cylinder 12 is stopped. Therefore, the anilox roller 14 is driven to rotate independently of the impression cylinder 12 by the roller independent rotation mechanism 95. At this time, the rotation operation of the roller independent rotation motor 117 (the anilox roller 14 driven to rotate by the roller independent rotation mechanism 95) is not transmitted to the impression cylinder 12 by the clutch mechanism 101a in the roller interlocking rotation gear 101. As described above, the anilox roller 14 is rotated independently of the impression cylinder 12 in the roller replacement operation of the coating apparatus 1, so that the anilox roller can be stopped even when the driving of a printing apparatus (not shown) is temporarily stopped. 14 can be rotated to prevent the coating liquid from being cured on the anilox roller 14.

  Of course, the present invention is not limited to the one having the clutch mechanisms 101a and 112a composed of the one-way clutch mechanism as in this embodiment. For example, the clutch mechanism 101 a in the roller interlocking rotation gear 101 and the clutch mechanism 112 a in the first coupling gear 112 are operated by the control device 18, and the anilox roller 14 is rotated by the roller interlocking rotation mechanism 94 or the anilox roller by the roller independent rotation mechanism 95. 14 rotation operations may be switched.

  Further, the present invention is not limited to one in which all anilox rollers 14 held in the roller magazine 31 are always driven to rotate by the roller interlocking rotation mechanism 94 or the roller independent rotation mechanism 95 as in the present embodiment. For example, by providing a clutch function to each of the roller gears 91 of the plurality of anilox rollers 14, the rotational drive of a predetermined (one or more) anilox roller 14 among the plurality held by the anilox roller replacement device 16 is temporarily stopped. You may be able to do that.

  According to this configuration, for example, even during the transfer operation by the coating apparatus 1, the anilox roller 14 can be easily cleaned by stopping the rotational driving of the anilox roller 14 located at the cleaning position. Further, for example, even during the transfer operation by the coating apparatus 1, the anilox roller 14 described later can be easily replaced by stopping the rotational driving of the anilox roller 14 located at the replacement position.

  Next, when the replacement of the anilox roller 14 held in the roller magazine 31 with another anilox roller is requested, the anilox roller 14 is replaced (roller replacement operation of the coating apparatus 1). Here, the roller replacement operation of the coating apparatus 1 will be described in detail below.

  First, the roller attaching / detaching device 35, the chamber device 15, the magazine positioning device 34, and the magazine rotating device 32 are operated in the same manner as the roller replacing operation of the coating device 1 described above, and the anilox roller 14 to be replaced is moved to the replacement position ( 1 to 9). That is, the anilox roller 14 held on the opposite side to the anilox roller 14 to be replaced in the roller magazine 31 is moved to the transfer operation position and positioned (the position is fixed), so that the anilox roller 14 to be replaced is replaced. Is positioned (see FIG. 1).

  Next, the anilox roller 14 at the replacement position is unloaded from the coating apparatus 1. That is, the operator opens the open / close door 132 of the housing 11, removes the fixing bolt 26 of the anilox roller 14 at the replacement position, and carries the anilox roller 14 out of the housing 11 using a crane (not shown).

  Next, a new anilox roller 14 is carried into the coating apparatus 1. That is, the operator carries a new anilox roller 14 into the housing 11 using a crane (not shown), positions the anilox roller 14 on the roller magazine 31 with the positioning pin 25, and uses the fixing bolt 26 to roll the roller magazine 31. To fix.

  Further, since the replacement position of the anilox roller 14 is on the upper side in the vertical direction in the coating apparatus 1 and the open / close door 132 is positioned on the upper side in the vertical direction of the anilox roller 14 in the replacement position, the operator uses the crane to anilox. A sufficient work space for carrying the rollers 14 in and out is secured. Therefore, the operator can easily work without bringing the anilox roller 14 into contact with peripheral members or the like when the anilox roller 14 is carried in and out using a crane.

  As mentioned above, although the embodiment of the liquid transfer device according to the present invention has been described, the liquid transfer device according to the present invention is not limited to this embodiment, and various modifications can be made without departing from the spirit of the present invention. Needless to say. For example, you may make it provide additionally the scattering prevention apparatus which prevents scattering of the coating liquid, the washing | cleaning liquid, etc. in a coating apparatus.

  For example, as shown in FIGS. 14A to 14C, as a scattering prevention device, a radial cover 150 that prevents liquid scattering in the radial direction of the anilox roller 14 held by the roller magazine 31, and the roller magazine 31. You may make it provide the axial direction cover 160 which prevents the liquid scattering of the anilox roller 14 to the axial direction.

  Here, a plurality of radial covers 150 are provided in the circumferential direction of the roller magazine 31 (four in the same number as the anilox roller 14 in FIG. 14B), and fixed portions 152 attached to the connecting portions 44 by bolts 151. The peripheral portion 153 extends along the peripheral surface 14a of the anilox roller 14 corresponding to the space between the fixed portions 152, and the end surface portion 154 that covers a part of the axial end surface 14b of the anilox roller 14. That is, the radial cover 150 is formed so as to cover a part of the peripheral surface 14 a and the axial end surface 14 b of the corresponding anilox roller 14, and extends between the connecting portions 44 adjacent in the circumferential direction of the roller magazine 31. Attached.

  A plurality of axial covers 160 are provided in the circumferential direction of the roller magazine 31 (four in the same number as the anilox roller 14 in FIG. 14B), and fixed portions 162 attached to the connecting portions 44 by bolts 161; An end surface portion 163 that extends from the fixed portion 162 and covers a part of the axial end surface 14 b of the anilox roller 14 is schematically configured. In other words, the axial cover 160 is formed so as to cover the corresponding anilox rollers 14 and a part of the axial end surface 14b, and is a connecting portion 44 adjacent in the circumferential direction of the roller magazine 31, Are located between adjacent anilox rollers 14.

  Thus, by providing the radial cover 150 as a scattering prevention device, it is possible to prevent the coating liquid, the cleaning liquid, and the like from scattering and adhering to other anilox rollers 14 by the rotational operation of the anilox roller 14, Further, by providing the axial cover 160 as a scattering prevention device, it is possible to prevent the coating liquid, the cleaning liquid, and the like from being scattered by the rotation operation of the anilox roller 14 and adhering to other peripheral devices and peripheral members.

1 Coating device (liquid transfer device)
11 Housing 12 Impression cylinder 13 Coater cylinder (rubber cylinder)
14 Anilox roller (carving cylinder, roller)
15 Chamber device (liquid supply device)
16 Anilox roller exchange device 17 Frame 17a Bearing hole 18 Control device 19 Roller selection switch (roller selection device)
21 Body 22 Rotating shaft 23 Attaching part (positioning means)
24 pin hole (positioning means)
25 Positioning pin (Positioning means)
26 Fixing bolt (positioning means)
31 Roller magazine (roller holding device)
32 Magazine rotation device 33 Magazine rotation detection device 34 Magazine positioning device (position fixing means)
35 Roller attaching / detaching device (attaching / detaching means, printing pressure adjusting means)
36 Roller rotating devices 41a and 41b Rotating shaft portion 42 Side plate portion 43 Mounting groove (positioning means)
44 Connecting part 45 Pin hole (positioning means)
51 Magazine rotation gear 52 First connection gear 53 Connection shaft 54 Second connection gear 55 Motor rotation gear 56 Motor rotation shaft 57 Magazine rotation motor 58 Subframe 61 First connection gear 62 Second connection gear 63 Encoder 64 Subframe 71 Positioning roller 71a Roller member 71b Roller holding member 71c Body portion 71d Screw member 72 Roller engagement member 72a Engagement portion 72b Side surface (guide surface)
73 Positioning cylinder 74 Guide roller 74a Roller member 74b Roller holding member 74c Body portion 74d Screw member 75 Pin member 76 Subframe 76a Pin hole 76b Insertion hole 77 Bearing 81 Eccentric bearing 81a Fixing portion 81b Eccentric portion 81c Rotating portion 82 First connecting member 83 Second connecting member 84 Detachable cylinder 84a Detachable rod 85 Pin member 86 Pin member 87 Subframe 88-1, 88-2 Encoder 91 Roller gear 92 Roller rotation gear 93 Roller rotation gear shaft 94 Roller interlocking rotation mechanism 95 Roller independent rotation mechanism 101 Roller interlocking rotation gear 101a Clutch mechanism 102 First connection gear 103 Second connection gear 104 Third connection gear 105 Pressure drum drive gear 111 Roller independent rotation gear 112 First connection gear 112a Clutch mechanism 113 Connection shaft 114 Second connection gear 15 Motor rotating gear 116 Motor rotating shaft 117 Roller independent rotating motor 118 Subframe 119 Subframe 121 Chamber 122 Pin member 123 Mounting plate 124 First chamber detecting device 125 Second chamber detecting device 131 Opening portion 132 Opening / closing door 133 Opening portion 134 Opening and closing door 135 Opening 136 Opening and closing door

Claims (4)

A roller for transferring the supplied liquid to a rubber cylinder;
A roller holding device that detachably holds the plurality of rollers and moves any one of the plurality of rollers to a predetermined position facing the rubber cylinder by a rotating operation;
A liquid transfer apparatus comprising: an attaching / detaching unit that attaches / detaches the roller held by the roller holding device and located at the predetermined position to / from the rubber cylinder. The liquid transfer apparatus according to claim 1, further comprising a positioning unit that determines a position of the roller with respect to the roller holding device. The liquid transfer apparatus according to claim 1, further comprising a position fixing unit that fixes the position of the roller that is held by the roller holding device and is positioned at the predetermined position. The liquid transfer device according to any one of claims 1 to 3, further comprising a printing pressure adjusting unit that adjusts a printing pressure between the roller and the rubber cylinder.

Images