JP7201513B2 - coating equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a coating apparatus for coating a material to be coated with varnish.

Such a coating apparatus includes a material to be coated, for example, a varnish cylinder for supplying varnish to be coated on the printing surface of a printed matter, and a varnish impression cylinder for conveying the printed matter and pressing the varnish of the varnish cylinder against the conveyed printed matter. I have.

A varnish plate for coating varnish is manually mounted on the varnish cylinder. In recent years, not only has the frequency of replacement of varnish plates increased due to the reduction in lot sizes and the diversification of printed materials, but varnish plates with different thicknesses have also been selected for replacement. If the thickness of the varnish plate changes during the replacement, the distance between the varnish impression cylinder and the varnish plate on the varnish cylinder changes, and the pressing force of the varnish cylinder against the printed matter from the varnish impression cylinder changes. Therefore, a sheet member for adjusting the thickness is manually mounted between the varnish plate and the varnish cylinder so that the distance between the varnish impression cylinder and the varnish plate on the varnish cylinder is adjusted to a preset distance. (for example, Patent Document 1).

Registered Utility Model No. 2579258

In Patent Document 1, the replacement work of the sheet member and the varnish plate is performed manually, but since no measures are taken to improve workability, early improvement of workability is desired.

SUMMARY OF THE INVENTION It is an object of the present invention to solve such problems, and to provide a coating apparatus capable of improving workability in exchanging sheet members and varnish plates.

In order to achieve the above object, a coating apparatus according to the present invention comprises a varnish cylinder around which a varnish plate is supplied with varnish for coating a material to be coated; a varnish impression cylinder disposed opposite to the cylinder, the varnish cylinder having a varnish plate holding portion for holding one end of the varnish plate in order to wind the varnish plate around the peripheral surface; and a thickness of the varnish plate. a sheet member holding part for holding one end of the sheet member for interposing a thickness adjusting sheet member between the varnish plate and the varnish cylinder according to It is characterized by comprising a sheet member guide portion arranged to guide the sheet member to the sheet member holding portion.

According to the above configuration, the sheet member can be fed to the sheet member holding portion of the varnish cylinder while being guided through the predetermined guide path by the sheet member guide portion. As a result, the one end of the sheet member can be quickly held by the sheet member holding portion of the varnish cylinder. Therefore, it is possible to improve the workability of exchanging the sheet member and the varnish plate.

Further, in the coating apparatus according to the present invention, the sheet member guide section includes a resistance applying section that applies resistance to movement of the sheet member in a direction toward the sheet member holding section. good too.

According to the above configuration, the sheet member can be guided to the varnish cylinder while being stretched by the resistance force of the resistance applying portion.

Further, the coating apparatus according to the present invention may include a varnish plate guide section for guiding the varnish plate sent to the varnish cylinder to the varnish plate holding portion.

According to the above configuration, the varnish plate can be guided by the varnish plate guide portion and sent to the varnish plate holding portion of the varnish cylinder. As a result, one end of the varnish plate can be quickly held by the varnish plate holder of the varnish cylinder. Therefore, it is possible to further improve the workability of exchanging the sheet member and the varnish plate.

According to the present invention, it is possible to provide a coating apparatus capable of improving the workability of exchanging the sheet member and the varnish plate by providing the sheet member guide portion.

1 is an overall side view of a printing press; FIG. FIG. 2 is a side view showing the internal structure of the coating apparatus of the present invention; It is a front view of the same coating apparatus, and is a figure which closed the lower side cover. It is a side view showing the upper part of the internal structure of the coating apparatus, in which the lower cover is in an open state and the nipping roller is in a released posture. It is a front view of the same coating apparatus, and is a figure which opened the lower side cover. It is a side view showing the upper part of the internal structure of the coating apparatus, in which the lower cover is opened and the nipping rollers are in the applying posture. FIG. 10 is a side view showing the upper portion of the internal structure of the coating apparatus, in which the lower cover is in an open state, the nipping roller is in the applying posture, and one end of the sheet member is held by the sheet member holding portion. FIG. 8 is a side view showing the upper part of the internal structure of the coating apparatus, in which the lower cover is opened and the nipping rollers are placed in the applying posture, and one end of the varnish plate is moved from the state of FIG. It is a figure held in . 9 is a side view showing the upper part of the internal structure of the coating apparatus, and is a view with the lower cover closed from the state of FIG. 8. FIG. It is a side view showing the upper part of the internal structure of the coating apparatus, and is a view in which the varnish plate guide section is flipped upward.

Hereinafter, the printing press of the present invention will be described with reference to the drawings.

FIG. 1 shows a printing machine incorporating a coating device 1 for performing surface treatment by coating (applying) varnish (also called resin varnish) to the printing surface of printed printing paper (printed matter) to make it glossy. shows an example.

This printing machine includes a paper stacking table 2, a paper feeding unit 4 for feeding printing papers P one by one from the paper stacking table 2 by a feeder device 3, and a printing paper P fed from the paper feeding unit 4. A printing unit 5 for performing color printing, a coating device 1 for coating varnish (ultraviolet curable resin varnish) on printing paper printed by the printing unit 5, and printing coated with varnish by the coating device 1. It comprises a paper discharge section 6 for conveying and discharging paper, and an ultraviolet drying device 7 provided in the paper discharge section 6 for curing the varnish of the printing paper conveyed by the paper discharge section 6. ing. In FIG. 1, the paper stacking table 2 side is the front side, the paper discharge section 6 side is the rear side, and the direction passing through the paper surface is the left-right direction (or width direction).

The printing units 5A to 5E are provided with printing impression cylinders 5a to 5e, and each of the printing impression cylinders 5a to 5e on the upstream side in the conveying direction has a transfer for transferring the printing paper P to each printing impression cylinder. It has barrels 9a-9e. Of the transfer drums 9a to 9e, the transfer drum 9a with a smaller diameter located on the beginning side (front side) in the conveying direction is also called a paper feed drum. constitutes Although not shown, each of the cylinders 5a to 5e and the transfer cylinders 9a to 9e is provided with a plurality of grippers (1 It may be a place). The small-diameter transfer cylinder 9a is also provided with a gripper (not shown) for gripping the printing paper with a gripper base and a claw at one position in the circumferential direction.

As shown in FIG. 2, the coating apparatus 1 includes a varnish cylinder 1A having a varnish plate 11 to which varnish is supplied, a varnish supply roller 10 for supplying varnish to the varnish plate 11 of the varnish cylinder 1A, and the varnish cylinder 1A. A varnishing impression cylinder 1B is arranged below the cylinder 1A to face the cylinder 1A, and transports printed printing paper and transfers the varnish of the varnish plate 11 to the transported printing paper. The coating apparatus 1 has an approach position where the varnish cylinder 1A is brought close to the varnish impression cylinder 1B and the varnish supply roller 10 to transfer the varnish, and a retreat position where the varnish cylinder 1A is separated from the varnish impression cylinder 1B and the varnish supply roller 10. Equipped with transfer means (not shown) that can be switched. At the retracted position, the replacement of the varnish plate 11 and the sheet member 12, which will be described later, is performed, and the maintenance of the equipment is performed. A transfer cylinder 1G for transferring the printing paper to the varnish impression cylinder 1B is provided on the upstream side (front side) of the varnish impression cylinder 1B in the conveying direction. The transfer cylinder 1G is provided with grippers at a plurality of locations (or one location) in the circumferential direction for gripping the sent printing paper with a gripper base and a claw.

A lower cover 18 is provided on the front surface of the varnish cylinder 1A on the printing unit 5 side (front side) and is rotatable around the axis X2 in the left-right direction at the upper end. The lower cover 18 is rotated about the axis X2 and lifted up to an open position (Fig. 4 and 5) and a closed position covering the front of the varnish cylinder 1A (see FIGS. 2 and 3). The illustration of the cover and the like installed from the lower end of the lower cover 18 to the upper side of the transfer drum 1G is omitted.

In recent years, not only has the frequency of replacement of varnish plates increased due to the reduction in lot sizes and the diversification of printed materials, but varnish plates with different thicknesses have also been selected for replacement. If the thickness of the varnish plate changes during the replacement, the distance between the varnish impression cylinder 1B and the varnish plate of the varnish cylinder 1A changes, and the pressing force from the varnish impression cylinder 1B to the printed matter of the varnish cylinder 1A changes. Resulting in. Therefore, the distance between the varnish impression cylinder 1B and the varnish cylinder 1A and the varnish cylinder 1A is determined in advance by manually attaching a sheet member for adjusting the thickness between the varnish cylinder 11 and the varnish cylinder 1A. I try to match the set distance. FIG. 2 shows a state in which the varnish plate 11 and the sheet member 12 for thickness adjustment are wound around the varnish cylinder 1A. 4 and 6 to 10 show the state in which the varnish cylinder 1A is positioned at the retracted position.

More specifically, as shown in FIG. 2, the varnish cylinder 1A has a first varnish plate holder 13 for holding one end of the varnish plate 11 so as to wind the varnish plate 11 around its peripheral surface. a second varnish plate holding portion 14 for holding the other end portion of the wound varnish plate 11; and a sheet member holding portion 15 for holding one end portion of the sheet member 12 so as to interpose the sheet member 12 therebetween. Further, the varnish cylinder 1A is provided with a pressing roller 27 for pressing the varnishing plate 11 against the peripheral surface of the varnishing cylinder 1A in order to reliably wind the varnishing plate 11 around the peripheral surface of the varnishing cylinder 1A. and a blade (not shown) for pressing the trailing end of the varnish plate 11 against a vise 14A described later after the varnish plate 11 is wound around the varnish cylinder 1A.

The first varnish plate holding portion 13, the second varnish plate holding portion 14, and the sheet member holding portion 15 are provided in the recess 1K formed in the varnish cylinder 1A.

The first varnish plate holder 13 is composed of a gripping side vise that grips one end of the varnish plate 11 . This gripping side vise is formed by a vise base 13A fixed upstream in the rotational direction of the varnish cylinder 1A in the recess 1K and a vise base 13A arranged opposite to the vise base 13A. A gripping plate 13B on the leading end side which can be changed between a closed position holding one end of the varnish plate 11 and an open position releasing the one end of the varnish plate 11 from the pinched state. By rotating the varnish cylinder 1A by a predetermined angle while one end of the varnish plate 11 is gripped by the first varnish plate holder 13, the varnish plate 11 is wound around the varnish cylinder 1A.

As described above, the second varnish plate holding portion 14 is composed of a gripper tail side vise that grips the other end of the varnish plate 11 wound around the varnish cylinder 1A. This grip tail side vise is made up of a vise base 14A fixed downstream in the rotational direction of the varnish cylinder 1A in the recess 1K and a vise base 14A arranged opposite to the vise base 14A. A gripping plate 14B on the tail side whose position can be changed between a closed position holding the other end of the varnish plate 11 and an open position releasing the other end of the varnish plate 11 from the pinched state is provided. ing. Further, the second varnish plate holder 14 is configured to be movable by a moving mechanism (not shown). By this movement, tension can be applied to the varnish plate 11 wound around the varnish cylinder 1A with one end sandwiched by the first varnish plate holder 13 and the other end sandwiched by the second varnish plate holder 14, respectively. .

The sheet member holding portion 15 is arranged downstream of the first varnish plate holding portion 13 in the recess 1K in the rotational direction of the varnish cylinder 1A, and is provided on the side wall portion 1S forming the recess 1K. plate members 15A, 15A. One end of the sheet member 12 is sandwiched and held between the plate members 15A, 15A. The length of the sheet member 12 in the direction of winding around the varnish cylinder 1A is shorter than the length of the varnishing plate 11 in the direction of winding around the varnishing cylinder 1A. By holding the other end portion of the plate 11 with the second varnish plate holding portion 14, the other end portion of the sheet member 12 is held in a state of being pressed against the varnish cylinder 1A. Therefore, in this embodiment, a holding portion for holding the other end of the sheet member 12 is not provided, but a holding portion for holding the other end of the sheet member 12 may be provided.

The coating apparatus 1 includes a sheet member guide section for guiding the sheet member 12 sent to the varnish cylinder 1A so as to mount the sheet member 12 on the varnish cylinder 1A to a sheet member holding section 15 above the varnish cylinder 1A. 16 and a varnish plate guiding portion 17 for guiding the varnish plate 11 sent to the varnish cylinder 1A to be mounted on the varnish cylinder 1A to the first varnish plate holding portion 13. As shown in FIG. More specifically, as shown in FIG. 4 and the like, the coating apparatus 1 is arranged such that, with the lower cover 18 positioned at the open position, the front side and the vertical direction passing through the center of rotation of the varnish cylinder 1A at the retracted position. A vertically extending sheet member guide portion 16 and a varnish plate guide portion 17 are provided at a position close to the upper portion of the varnish cylinder 1A.

The sheet member guide portion 16 is arranged on the paper discharge portion 6 side (rear side) with respect to the varnish plate guide portion 17 .

The sheet member guide portion 16 includes a vertically extending plate-like member 16A having a guide surface 16a for guiding the rear surface of the sheet member 12, and an upper end and a lower end of the plate-like member 16A which are positioned closer to each other than the guide surface 16a of the plate-like member 16A. Upper and lower first guide rollers 16B and 16C which are provided so as to position (protrude) on the printing unit 5 side (front side) and guide the rear surface of the sheet member 12 and are rotatable around the axis in the horizontal (width) direction; A plurality of (three in the figure) second guide rollers 16B and 16C are arranged on the printing unit 5 side (front side) to guide the front surface of the member 12 and are rotatable around the axis in the left-right (width) direction. Guide rollers 16D, 16E and 16F are provided. By guiding the sheet member 12 by the sheet member guide portion 16, one end portion of the sheet member 12 can be quickly held by the sheet member holding portion 15 of the varnish cylinder 1A. As described above, by providing the upper and lower first guide rollers 16B and 16C so as to protrude from the guide surface 16a of the plate-like member 16A toward the printing unit 5 (front side), the sheet member 12 is formed as a sheet member. Since the upper and lower first guide rollers 16B and 16C rotate due to the contact of the sheet member 12 while being guided by the use guide portion 16, the sheet member 12 can be guided stably. The plate member 16A also functions as a cover.

As shown in FIG. 4, the upper end portion of the plate-like member 16A is provided with a bent portion 16A1 that is bent obliquely upward so as to be positioned rearward toward the upper end. In addition, as shown in FIG. 4, at the lower end of the plate-like member 16A, a bent portion 16A2 is bent obliquely downward so as to be located rearward toward the lower end, and a bent portion 16A2 extends straight downward from the lower end of the bent portion 16A2. It is provided with a vertical plate portion 16A3 that is bent in such a manner. Further, the second guide rollers 16D, 16E, 16F are positioned between the upper and lower first guide rollers 16B, 16C, and are arranged at predetermined intervals in the vertical direction. The second guide rollers 16D, 16E, 16F are rotatably supported by a pair of left and right vertical members 19, 19 provided on both sides in the left and right (width) direction.

Although not shown, each of the second guide rollers 16D, 16E, or 16E or 16D or 16E or 16D or 16E or 16D or 16E or 16D or 16E or 16E or 16D or 16E or 16D or 16E or 16D or 16E on the vertical members 19 or 19 is attached to the vertical members 19 or 19 so that the front or back position of each of the second guide rollers 16D or 16E or 16F can be adjusted with respect to the vertical members 19 or 19 (not shown). The hole through which each shaft of 16F penetrates is formed as an elongated hole in the front-rear direction. Further, as shown in FIG. 10, a pair of left and right swing arms 20, 20 (left and right swing arms 20, 20( FIG. 10 shows only one side). The lower cover 18 is connected to the lower ends of the vertical members 19, 19 via a pair of left and right brackets 21, 21, respectively. A pair of left and right brackets 21, 21 are attached to vertical members 19, 19 so as to be rotatable around an axis X2 in the left-right (width) direction.

The lower cover 18 is configured so as to be held by a magnet in an open position lifted upward, and is configured to face the second guide rollers 16D, 16E and 16F at intervals in the open position. . Therefore, the varnish plate 11 is passed between the second guide rollers 16D, 16E, 16F and the lower cover 18 at the open position while guiding the varnish plate 11 to the first varnish plate holder 13 while the first varnish on the varnish cylinder 1A is being guided. A guide path is formed through which the plate can be fed to the plate holder 13 . This guide route serves as the varnish plate guide portion 17 . The one end of the varnish plate 11 can be quickly held by the first varnish plate holding portion 13 of the varnish cylinder 1A by the guidance of the varnish plate guide portion 17 . In this embodiment, the second guide rollers 16D, 16E, 16F and the lower cover 18, which constitute the sheet member guide portion 16, constitute the varnish plate guide portion 17. As shown in FIG. In other words, although the second guide rollers 16D, 16E, and 16F constituting the sheet member guide section 16 are also configured as parts constituting the varnish plate guide section 17, they may be configured separately.

Further, the varnish plate guide portion 17 is configured to be flipped upward around the axis X1 of the swing arms 20, 20, and held in the flipped-up state (see FIG. 10). By flipping up in this way, when only the varnish plate 11 is replaced without replacing the sheet member 12, the sheet member 12 removed from the varnish cylinder 1A is clamped as will be described later because the guide portion 17 for the varnish plate is not in front. The sheet can be quickly sandwiched between the roller 22A and the first guide roller 16B (see FIG. 10).

Further, the sheet member guide portion 16 provides resistance to the movement of the sheet member 12 in the direction toward the sheet member holding portion 15 and the movement of the sheet member 12 when it is wound around the varnish cylinder 1A. A granting unit 22 is provided. The resistance applying section 22 applies a resistance that resists movement toward the sheet member holding section 15. Specifically, the sheet member 12 is supported by the upper first guide roller 16B. It has pinching rollers 22A for pinching. The nipping roller 22A releases the nipping and does not apply the resistance force to the sheet member 12 by moving away from the first guide roller 16B in the applying posture (see FIG. 9) in which the sheet member 12 is nipped and the resistance force is applied. It is provided so that the posture can be changed between the releasing posture (see FIG. 4) and the other posture. The nipping roller 22A has a length substantially equal to the width of the sheet member 12 . The nipping roller 22A is formed by a pair of rotating arms 25, 25 attached to brackets 24, 24 fixed inside a pair of left and right covers 23, 23 provided on both left and right sides so as to be rotatable about the left and right axis X3. It is rotatably attached to one end. A compression coil spring 26 is provided at each of the other ends of the pair of rotating arms 25 , 25 , and the compressive force of the compression coil spring 26 can hold the applying posture and the releasing posture.

A procedure for replacing both the varnish plate 11 and the sheet member 12 mounted on the varnish cylinder 1A using the sheet member guide portion 16 and the varnish plate guide portion 17 configured as described above will be described.

When the operator presses a varnish plate exchange start button (not shown), a signal from a control unit (not shown) opens the closed tail side gripper plate 14B and presses the varnish plate with the pressing roller 27. . When the gripping plate 14B on the rear side is opened, the operator lifts the lower cover 18 to the open position and then holds the varnish plate and the other end of the sheet member by hand. When the operator presses a varnish plate discharge button (not shown), the varnish cylinder 1A rotates to discharge the varnish plate and the sheet member, and then the pressing roller 27 moves away from the varnish cylinder 1A. Subsequently, when the operator presses a button (not shown) to open the leading edge side jaw plate 13B, a signal from the control section opens the closed leading edge side jaw plate 13B. The operator takes out the varnish plate out of the coating apparatus 1 , pulls out one end of the sheet member 12 from the sheet member holding portion 15 , and takes out the sheet member out of the coating apparatus 1 . Subsequently, the operator moves the sheet member 12 to be used for the next work through between the plate-like member 16A and the second guide rollers 16D, 16E, 16F downward toward the varnish cylinder 1A (see FIG. 4), and takes the release posture. nipping roller 22A is manually switched to the application posture (see FIG. 6). By switching the nipping roller 22A to the application posture, the sheet member 12 can be prevented from moving (dropping) downward due to its own weight, and the operator can release the sheet member 12 from his or her hand. Subsequently, the operator pulls the leading end (lower end) of the sheet member 12 downward to hold it in the sheet member holding portion 15 of the varnish cylinder 1A (see FIG. 7), and then moves the varnish plate 11 to be replaced to the second position. 2 It is passed from above between the guide rollers 16D, 16E, 16F and the lower cover 18 to move downward to the varnish cylinder 1A side, and the tip of the varnish plate 11 is moved to the vise 13A and the gripping plate 13B on the tip side. (See FIG. 8). After insertion, the operator presses the gripper plate closing button (not shown) on the tip side, then closes the lower cover 18 by hand (see FIG. 9), and then presses the varnish wrapping button (not shown). Then, the varnish plate 11 and the sheet member 12 are pressed by the pressing roller 27 in response to a signal from the control unit, and the varnish plate 11 and the sheet member 12 are wound around the varnish cylinder 1A. After that, a signal from the control unit causes the blade to press the tail side end portion of the varnish plate 11 opposite to the tip portion, and then the tail side gripping plate 14B is closed. Subsequently, after the blade and the pressing roller 27 are moved away from the varnish cylinder 1A by a signal from the control unit, a predetermined tension is applied to the varnish plate 11 by the second varnish plate holding unit 14, and the varnish plate 11 is held. And the replacement of the sheet member 12 is completed.

Next, a procedure for reusing the sheet member 12 attached to the varnish cylinder 1A and replacing only the varnish plate 11 using the varnish plate guide portion 17 will be described.

When the operator presses a varnish plate exchange start button (not shown), a signal from a control unit (not shown) opens the closed tail side gripper plate 14B and presses the varnish plate with the pressing roller 27. . When the gripping plate 14B on the buttock side is opened, the operator lifts the lower cover 18 to the open position, and then flips up the lower cover 18 and the second guide rollers 16D, 16E, 16F. (See FIG. 10). Next, the varnish plate and the other end of the sheet member are held by hand. When the operator presses a varnish plate discharge button (not shown), the varnish cylinder 1A rotates to discharge the varnish plate and the sheet member, and then the pressing roller 27 moves away from the varnish cylinder 1A. After that, when a leading edge side gripper release button (not shown) is pressed, the closed leading edge side gripper plate 13B is opened by a signal from the control section. The operator takes out only the varnish plate he is holding to the outside of the coating apparatus 1. - 特許庁Subsequently, the operator manually switches the nipping roller 22A from the releasing posture to the applying posture to hold the sheet member 12 (see FIG. 10). Subsequently, the operator manually lowers the flipped-up lower cover 18 and the second guide rollers 16D, 16E, 16F. A new varnish plate is passed from above between the lower cover 18 and the second guide rollers 16D, 16E, 16F and moved downward toward the varnish cylinder 1A, and the leading end of the varnish plate is clamped between the vise 13A and the leading end side. It is inserted between the back plate 13B. After the insertion, the operator pushes the closing button (not shown) of the gripping plate 13B on the leading end side, closes the lower cover 18 by hand, and then pushes the varnish plate winding button (not shown). The varnish plate and the sheet member are pressed by the pressing roller 27 and the varnish plate and the sheet member are wound around the varnish cylinder 1A. After that, according to a signal from the control section, the blade presses the tail side end portion of the varnish plate opposite to the tip portion, and then the tail side gripping plate 14B is closed. Subsequently, after the blade and the pressing roller 27 are moved away from the varnish cylinder 1A by a signal from the control unit, a predetermined tension is applied to the varnish plate by the second varnish plate holder 14, and the varnish plate 11 is removed. end the exchange.

Next, a replacement procedure for removing the varnish plate from the varnish cylinder 1A on which only the varnish plate is mounted using the sheet member guide portion 16 and mounting only the new varnish plate will be described. In this embodiment, the sheet member guide portion 16 is used to replace the varnish plate, but the varnish plate guide portion 17 may be used to replace the varnish plate.

When the operator presses a varnish plate exchange start button (not shown), a signal from a control unit (not shown) opens the closed tail side gripper plate 14B and presses the varnish plate with the pressing roller 27. . When the tail side gripping plate 14B is opened, the operator lifts the lower cover 18 to the open position and then holds the varnish plate 11 by hand. When the operator presses a varnish plate discharge button (not shown), the varnish cylinder 1A rotates and the varnish plate is discharged, and then the pressing roller 27 moves away from the varnish cylinder 1A. Subsequently, when the operator presses a button (not shown) to open the leading edge side jaw plate 13B, a signal from the control section opens the closed leading edge side jaw plate 13B. The operator takes out the varnish plate from the coating apparatus 1 . Subsequently, the operator moves the varnish plate to be used for the next work through between the plate-like member 16A and the second guide rollers 16D, 16E, 16F toward the varnish cylinder 1A, and the tip of the varnish plate is placed in a vise. It is inserted between the base 13A and the gripping plate 13B on the tip side. When the varnish plate is inserted, the nipping roller 22A is in the release posture shown in FIG. After the insertion, the operator pushes the closing button (not shown) of the gripping plate 13B on the leading end side, closes the lower cover 18 by hand, and then pushes the varnish plate winding button (not shown). The varnish plate is pressed by the pressing roller 27 and wound around the varnish cylinder 1A by a signal from . After that, according to a signal from the control section, the blade presses the tail side end portion of the varnish plate opposite to the tip portion, and then the tail side gripping plate 14B is closed. Subsequently, after the blade and the pressing roller 27 are moved away from the varnish cylinder 1A by a signal from the control unit, a predetermined tension is applied to the varnish plate by the second varnish plate holder 14 to replace the varnish plate. exit.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, in the above embodiment, the sheet member guide portion 16 and the varnish plate guide portion 17 are provided, but only the sheet member guide portion 16 may be provided.

Further, in the above-described embodiment, the sheet member guide portion 16 and the varnish plate guide portion 17 are arranged to extend vertically above the varnish cylinder 1A, and the sheet member 12 and the varnish cylinder 1A are arranged downward from above. Although the varnishing plate 11 is moved, it is arranged above the varnishing cylinder 1A so as to extend obliquely with respect to the vertical direction, and the sheet member 12 and the varnishing plate 11 are moved obliquely toward the varnishing cylinder 1A. may

In the above-described embodiment, the varnish plate 11 and the sheet member 12 are exchanged while the varnish cylinder 1A is at the retracted position. It may be configured to be performed occasionally.

Further, in the above embodiment, the printing section 5 is provided with five printing units 5A to 5E, but the number of printing units is not limited to five. Also, the printing unit may be omitted. Further, the paper discharge section 6 is composed of a chain conveying device provided with a gripper, but a printing press without the paper discharge section 6 may be used. The configurations are not limited to those shown in the figures. Also, although sheet paper is used as the printing paper, continuous long paper may be used. Furthermore, the coating apparatus 1 may be used for coating not only ultraviolet curable resin varnish (hereinafter referred to as varnish) but also water-based varnish (water-based varnish). In the case of this water-based varnish, the coated water-based varnish is dried by the infrared ray drying devices 8A and 8B provided before and after the ultraviolet drying device 7 in the printing paper conveying direction. In addition, the material to be coated may be a sheet, a web, or the like, in addition to printing paper (printed matter).

DESCRIPTION OF SYMBOLS 1... Coating apparatus 1A... Varnish cylinder 1B... Varnish impression cylinder 1G... Transfer cylinder 1K... Recessed part 1S... Side wall part 2... Paper stacking stand 3... Feeder apparatus 4... Paper feed part 5... Printing Section 5A to 5E Printing unit 5a to 5e Impression cylinder for printing 6 Discharge unit 7 Ultraviolet drying device 8A, 8B Infrared drying device 9a to 9e Transfer cylinder 10 Varnish supply roller , 11... Varnish plate, 12... Sheet member, 13... First varnish plate holding portion (grip side vise), 13A... Vise base, 13B... Grip plate, 14... Second varnish plate holding portion ( 14A vise base 14B gripping plate 15 sheet member holding portion 15A plate member 16 sheet member guide portion 16A plate member 16a guide surface 16B, 16C first guide roller 16D, 16E, 16F second guide roller 16A1, 16A2 bending portion 16A3 vertical plate portion 17 varnish plate guide portion 18 lower cover 19 Vertical member 20 Swing arm 21 Bracket 22 Resistance applying unit 22A Clamping roller 23 Cover 24 Bracket 25 Rotating arm 26 Compression coil spring 27 Pressing roller , P... printing paper, X1, X2, X3... shaft core

Claims (3)

A varnish cylinder around which a varnish plate supplied with varnish for coating a material to be coated is wound;
The varnish cylinder includes a varnish plate holding portion for holding one end portion of the varnish plate for winding the varnish plate around the peripheral surface, and a varnish plate holder between the varnish plate and the varnish cylinder depending on the thickness of the varnish plate. a sheet member holding portion for holding one end of the sheet member for thickness adjustment so as to interpose the sheet member;
A coating apparatus, comprising: a sheet member guide portion arranged close to the varnish cylinder for guiding the sheet member to the sheet member holding portion. 2. The sheet member guide portion according to claim 1, wherein the sheet member guide portion includes a resistance applying portion that applies a resistance force to movement of the sheet member in a direction toward the sheet member holding portion. coating equipment. 3. The coating apparatus according to claim 1, further comprising a varnish plate guide portion for guiding the varnish plate sent to the varnish cylinder to the varnish plate holding portion.

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