JP6130111B2 - Screen printing apparatus and combination printing machine provided with the screen printing apparatus - Google Patents

Description

  The present invention relates to a screen printing apparatus that performs screen printing on a sheet and a combination printing machine including the screen printing apparatus.

  An example of a conventional printing machine that performs screen printing is disclosed in Patent Document 1.

  According to this, first, in the screen printing apparatus provided in combination with the offset printing apparatus, the rotary screen cylinder is arranged above the impression cylinder that holds and conveys the sheet on which screen printing is performed. Yes.

  Next, the screen printing apparatus includes a pair of holders that respectively support both ends of a cylindrical screen that is a plate material, a pair of first eccentric bearings that rotatably support the pair of holders, and a pair of first bearings. A pair of driving means for moving the pair of holders along the trunk axis direction via one eccentric bearing, and a pair of holders for moving the pair of holders close and away along the trunk axis direction to support and release the screen; A control device that operates the motor and operates the pair of motors so that the pair of holders are synchronously moved by the same amount in the same direction along the barrel axis direction to move the screen in the barrel axis direction. Yes.

JP 2006-321157 A

  By the way, in the printing machine disclosed in Patent Document 1, the rotary screen cylinder is arranged above the impression cylinder. The pair of holders always apply tension to the screen of the rotary screen cylinder in the cylinder axis direction.

  Therefore, when the rotary screen cylinder is damaged due to aging or interference with other things, ink or varnish etc. accumulated inside the rotary screen cylinder leaks to the outside and falls to the impression cylinder, which causes great damage. There was a problem.

  Accordingly, the present invention provides a screen printing apparatus and a screen printing apparatus capable of minimizing the damage caused by the screen printing liquid when the rotary screen cylinder is damaged without impairing the function of supplying the screen printing liquid during printing. An object of the present invention is to provide a combination printing machine provided.

In order to achieve such an object, a screen printing apparatus according to the present invention includes:
A pressure drum (excluding a rubber blanket cylinder and a screen printing cylinder) that includes a sheet holding apparatus that holds the sheet, receives the sheet from the upstream sheet conveying apparatus via the sheet holding apparatus, and conveys the sheet;
A rotary screen cylinder that screen-prints a sheet held on the impression cylinder in contact with the impression cylinder;
In a screen printing apparatus comprising:
Positioning the upstream sheet conveying device above the impression cylinder;
The rotary screen cylinder was positioned on the side of the impression cylinder so that the screen printing liquid was collected in the squeegee portion of the rotary screen cylinder.
It is characterized by that.

Also,
A cylinder positioned above the impression cylinder and in contact with the impression cylinder and receiving a sheet from the impression cylinder is provided.
It is characterized by that.
Also,
The sheet holding device is provided in a notch formed on the outer periphery of the impression cylinder, and includes a claw that can be opened and closed to hold and release the sheet.
It is characterized by that.
Also,
The claw has a guide surface that is continuous with the outer peripheral surface of the impression cylinder and has substantially the same curvature as the outer peripheral surface.
It is characterized by that.
Also,
A gap guard is provided so as to cover the notch portion of the impression cylinder, and has a guide surface that is continuous with the outer peripheral surface of the impression cylinder and has substantially the same curvature as the outer peripheral surface.
It is characterized by that.

In order to achieve such an object, the combination printing machine according to the present invention includes:
In addition to the screen printing apparatus, a reversing unit and an intaglio printing apparatus are provided.

Also,
An offset printing apparatus is further provided.

  According to the screen printing apparatus of the present invention, the damage caused by the screen printing liquid when the screen of the rotary screen cylinder is damaged does not impair the function of supplying the screen printing liquid to the sheet at the time of printing. Can be minimized, and the reliability of the apparatus is increased.

  According to the combination printer according to the present invention, different types of printing such as intaglio printing and offset printing can be performed in one pass, and the versatility of the printing press is increased in addition to the reliability of the screen printing apparatus.

1 is a side view of a schematic configuration of a combination printing machine showing an embodiment of the present invention. It is the enlarged side view of a screen printing apparatus and a reversing part similarly. It is the structure explanatory drawing of a rotary screen cylinder and an impression cylinder similarly.

  Hereinafter, a screen printing apparatus according to the present invention and a combination printing machine including the screen printing apparatus will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic side view of a combination printing machine according to an embodiment of the present invention, FIG. 2 is an enlarged side view of a screen printing apparatus and a reversing unit, and FIG. is there.

  As shown in FIG. 1, in the combination printing machine 100, a first offset printing unit (offset printing apparatus) 120 is provided on the leading end side of a feeder board 111 of a sheet feeding apparatus 110 that feeds sheets 101 one by one. A transfer cylinder 120a is provided, and the transfer cylinder 120a can receive the sheets 101 from the feeder board 111 one by one via a swing device (not shown).

  A pressure drum 121a for one surface of the first offset printing unit 120 is in contact with the transfer cylinder 120a of the first offset printing unit 120. A rubber cylinder 122a for one side is in contact with the pressure cylinder 121a. A plate cylinder 123a for one side is in contact with the rubber cylinder 122a. The plate cylinder 123a is provided with an inking device 124a for one side which is an ink supply unit for one side and a water supply device 125a for one side which is a water supply unit for one side. Such an impression cylinder 121a, a rubber cylinder 122a, a plate cylinder 123a, an inking device 124a, a water supply device 125a, and the like constitute an offset printing unit for one side of the first printing unit 120.

  A pressure drum 121b for the other surface of the first offset printing unit 120 is in contact with the pressure drum 121a on the downstream side in the rotational direction from the position of contact with the rubber drum 122a. The impression cylinder 121b is in contact with a rubber cylinder 122b for the other side. A plate cylinder 123b for the other side is in contact with the rubber cylinder 122b. The plate cylinder 123b is provided with an inking device 124b for the other side which is an ink supply means for the other side and a water supply device 125b which is a water supply means for the other side. The pressure cylinder 121b, the rubber cylinder 122b, the plate cylinder 123b, the ink device 124b, the water supply device 125b, and the like constitute an offset printing unit for the other side of the first offset printing unit 120.

  One surface of the second offset printing unit (offset printing device) 130 is located downstream of the pressure cylinder 121b for the other surface of the first offset printing unit 120 in the rotational direction of the contact position with the rubber drum 122b. An impression cylinder 131a is in contact, and the second printing unit 130 is similar to the first offset printing unit 120 in that the rubber cylinder 132a, the plate cylinder 133a, the inking device 134a, and the water supply device 135a for one side are used. Etc., an offset printing part for one side is constituted, and an offset printing part for the other side is provided by providing a rubber cylinder 132b, a plate cylinder 133b, an ink device 134b, a water supply device 135b, etc. for the other side. It is configured.

  One surface of the third offset printing unit (offset printing apparatus) 140 is located downstream of the pressure cylinder 131b for the other surface of the second offset printing unit 130 in the rotational direction of the contact position with the rubber cylinder 132b. The third offset printing unit 140 is in contact with the first and second offset printing units 120 and 130, and has a rubber cylinder 142a for one side, a plate cylinder 143a, and an inking device. The offset printing unit for one side is configured by including 144a and the water supply device 145a, and the other surface is provided with the rubber cylinder 142b, the plate cylinder 143b, the inking device 144b, and the water supply device 145b for the other side. An offset printing unit is configured.

  One surface of the fourth offset printing unit (offset printing device) 150 is located downstream of the pressure cylinder 141b for the other surface of the third offset printing unit 140 in the rotational direction with respect to the contact position with the rubber cylinder 142b. The fourth offset printing unit 150 is in contact with the first impression cylinder 151a, the first impression cylinder 151a, the first impression cylinder 151a, the plate cylinder 153a, By providing the inking device 154a and the water supply device 155a, an offset printing unit for one side is configured, and by providing the rubber cylinder 152b, the plate cylinder 153b, the inking device 154b, and the water supply device 145b for the other side, The offset printing unit is configured.

  As shown in FIG. 2, the first drying section is located on the downstream side in the rotational direction of the pressure drum 151 b for the other surface of the fourth offset printing unit 150 with respect to the rubber drum 152 b. A transfer cylinder 171Aa for one surface of 170A is in contact with the surface. In the vicinity of the conveying cylinder 171Aa, a drier for one side which is a drying means for one side for drying one side of the sheet 101 printed by the first to fourth offset printing units 120, 130, 140, 150. 172Aa is provided. The conveyance cylinder 171Ab for the other surface is in contact with the conveyance cylinder 171Aa on the downstream side in the rotation direction from the position where the conveyance cylinder 171Aa is in contact with the impression cylinder 151b for the other surface of the fourth offset printing unit 150. In the vicinity of the transfer cylinder 171Ab, a dryer for the other surface, which is a drying means for the other surface for drying the other surface of the sheet 101 printed by the first to fourth offset printing units 120, 130, 140, 150. 172Ab is provided.

  A screen printing unit (screen printing device) 160 is arranged on the downstream side in the rotational direction of the conveyance cylinder 171Ab for the other surface of the first drying unit 170A with respect to the conveyance cylinder 171Aa for the one surface. And the transfer cylinder (upstream sheet conveying device) 161 is in contact with it. A pressure drum 162 is in contact with the transfer drum 161 on the downstream side in the rotational direction from the contact position with the transfer drum 171Ab for the other surface. A rotary screen cylinder 163 is in contact with the pressure cylinder 162 on the downstream side in the rotational direction from the position of contact with the transfer cylinder 161.

  As shown in FIG. 3, the rotary screen cylinder 163 is positioned on the side of the impression cylinder 162 by positioning the transfer cylinder 161 above the impression cylinder 162, and from the transfer cylinder 161 to the impression cylinder 162. The sheet holding device (sheet holding device) 164 is replaced by screen printing on the other surface of the sheet 101 conveyed on the impression cylinder 162.

  Then, inside the rotary screen cylinder 163 equipped with a screen 165 which is a cylindrical plate material in which small holes corresponding to the pattern are etched, both ends are supported by a frame so as to be movable in the radial direction. A squeegee shaft 166 for supplying squeegee or varnish (liquid for screen printing), and a squeegee 167 for extruding the ink, varnish, etc. supplied from the squeegee shaft 166 from the small hole of the screen 165 and supplying the squeegee shaft 166 to the impression cylinder 162 side Is provided. The squeegee 167 and the squeegee shaft 166 constitute a squeegee portion, and the installation angle θ of the squeegee 167 with respect to the horizontal line H in the squeegee portion is set as θ ≧ 0 degrees.

  The impression cylinder 162 has a guide surface 168a that is disposed between one end and the other end of the notch 162a of the impression cylinder 162 and has substantially the same curvature as the outer peripheral surface of the impression cylinder 162. The gap guard 168 is continuous with the outer peripheral surface of the impression cylinder 162 so as to cover the notch 162a. The sheet holding device 164 as a sheet holding device is supported in the notch 162a of the impression cylinder 162 so as to be rotatable about the claw shaft 164a, and the claw 169 is opened and closed by the rotation of the claw shaft 164a. Hold and release the sheet. A guide surface 169a having substantially the same curvature as the outer peripheral surface of the pressure drum 162 is formed on the outer surface of the claw 169 so as to be continuous with the outer peripheral surface of the pressure drum 162 at one end portion of the notch portion 162a. The rotary screen cylinder 163 is prevented from falling into the notch 162a or being dented by the claw 169, and the life of the screen 165 can be extended.

  A transfer cylinder 173 is in contact with the pressure drum 162 of the screen printing unit 160 on the downstream side in the rotational direction from the position of contact with the rotary screen cylinder 163. The transport drum 171B of the second drying unit 170B is in contact with the transfer drum 173 on the downstream side in the rotation direction from the contact position with the pressure drum 162. A dryer 172B, which is a drying unit that dries the other surface of the sheet 101 that has been screen-printed by the screen printing unit 160, is disposed in the vicinity of the conveyance cylinder 171B.

  The suction cylinder 181 of the reversing unit 180 is in contact with the transfer cylinder 171B on the downstream side in the rotation direction from the contact position with the transfer cylinder 173 of the screen printing unit 160. An inversion cylinder 182 is in contact with the suction cylinder 181 on the downstream side in the rotational direction from the position of contact with the conveyance cylinder 171B. In the reversing unit 180, the screen printing unit 160 performs screen printing and the sheet 101 dried by the second drying unit 170B is conveyed as it is without reversing the front and back to be post-processed or screen printed. Whether or not the sheet 101 to which the sheet 101 is not applied is reversed and conveyed so as to be post-processed can be appropriately selected according to the printing specifications.

  A transfer cylinder 174 is in contact with the reversing cylinder 182 on the downstream side in the rotational direction from the position of contact with the suction cylinder 181. A transfer cylinder 175 is in contact with the transfer cylinder 174 on the downstream side in the rotational direction from the position of contact with the reversing cylinder 182.

  An intaglio printing unit (intaglio printing apparatus) 190 is disposed on the downstream side of the transfer cylinder 175 with respect to the contact position with the transfer cylinder 174, and the transfer cylinder 191 is in contact therewith. An impression cylinder 192 is in contact with the transfer cylinder 191 on the downstream side in the rotational direction from the contact position with the transfer cylinder 175.

  An intaglio cylinder 193 is in contact with the impression cylinder 192. An ink collecting cylinder 194 is in contact with the intaglio cylinder 193. A plurality (five in the illustrated example) of ink forming cylinders 195 are in contact with the ink collecting cylinder 194 in the circumferential direction. On the peripheral surface side of these ink form cylinders 195, ink devices (not shown) for supplying ink are respectively arranged correspondingly, and the ink apparatus is a frame that can move toward and away from the ink form cylinder 195. Each is supported in 190A. A wiping roller 196 is in contact with the intaglio cylinder 193. A wiping tank 197 is disposed below the wiping roller 196.

  A delivery cylinder 113 of the sheet discharge device 112 is in contact with the impression cylinder 192 on the downstream side in the rotational direction from the position of contact with the intaglio cylinder 193. The delivery cylinder 113 is provided with a sprocket (not shown) coaxially. An endless transport chain 114 provided with a plurality of hooks is wound around the sprocket. A plurality (three in the illustrated example) of sheet stacking tables 115 </ b> A to 115 </ b> C are disposed below the transport chain 114 along the traveling direction of the transport chain 114.

  The first to fourth offset printing units 120, 130, 140, and 150 constitute one module having an offset printing unit for one side and an offset printing unit for the other side for each unit, and are connected to each other. Thus, the maximum number of colors necessary for printing can be easily set according to the number.

  In the present embodiment, the conveyance cylinder 171Aa for the first surface of the first drying unit 170A, the conveyance cylinder 171Ab for the other surface, the transfer cylinder 161, the impression cylinder 162, the conveyance cylinder 173 of the screen printing unit 160, The transfer cylinder 171B of the second drying unit 170B, the suction cylinder 181 of the reversing unit 180, the reversing cylinder 182, the transfer cylinders 174 and 175, and the transfer cylinder 191 of the intaglio printing unit 190 are the first to fourth offset printing units. The sheet feeding cylinders for feeding the sheet 101 offset-printed at 120, 130, 140, and 150 to the impression cylinder 192 of the intaglio printing unit 190 are provided.

  With this configuration, when the sheets 101 are fed one by one from the sheet supply apparatus 110, the sheets 101 are transferred to the impression cylinder via the feeder board 111 and the transfer cylinder 120 a of the first offset printing unit 120. It is delivered to 121a and held so that one side faces the front side.

  Various inks from the inking device 124a are sent to the plate cylinder 123a via a roller row (not shown), and transferred to the rubber cylinder 122a with an image line corresponding to the pattern of the plate cylinder 123a.

  Then, when the sheet 101 passes between the impression cylinder 121a and the rubber cylinder 122a, the ink transferred to the surface of the rubber cylinder 122a is retained on the peripheral surface of the impression cylinder 121a. Transferred to one side.

  The sheet 101 printed on one side of the impression cylinder 121a is conveyed and replaced by the impression cylinder 121b, and is held by the impression cylinder 121b with the other side facing the front side. .

  Various inks from the inking device 124b are sent to the plate cylinder 123b through a roller row (not shown), and transferred to the rubber cylinder 122b with an image line corresponding to the pattern of the plate cylinder 123b.

  Then, when the sheet 101 passes between the impression cylinder 121b and the rubber cylinder 122b, the ink transferred to the surface of the rubber cylinder 122b is held on the peripheral surface of the impression cylinder 121b. Is transferred to the other side of the film.

  The sheet 101 printed on the other side of the impression cylinder 121b is conveyed and replaced by the impression cylinder 131a of the second offset printing unit 130, so that the one side faces the front side. It is held by the impression cylinder 131a.

  Subsequently, the sheet 101 is printed in the second offset printing unit 130 in the same manner as in the first offset printing unit 120 after printing on one side and then printing on the other side. Passed to the three printing units 140.

  Hereinafter, the sheet 101 is subjected to double-sided printing in the third and fourth offset printing units 140 and 150 in the same manner as the first offset printing unit 120, and then is used for one side of the first drying unit 170A. By being replaced with the transfer cylinder 171Aa, the ink on one side is dried by the dryer 172Aa for one side while being held by the transfer cylinder 171Aa so that one side faces the front side, and then the other side. By being replaced by the transfer cylinder 171Ab for the direction, the ink on the other side is dried by the dryer 172Ab for the other side while being held and conveyed by the transfer cylinder 171Ab with the other side facing the front side. .

  Next, after the sheet 101 is replaced by the transfer cylinder 161 of the screen printing unit 160, the sheet 101 is held by the impression cylinder 162 so that the other surface faces the front side by being replaced by the impression cylinder 162. After the screen is printed on the other surface of the rotary screen cylinder 163 while being conveyed, the other surface is turned to the front side by being replaced by the conveying cylinder 171B of the second drying unit 170B via the transfer cylinder 173. Then, the ink on which the other surface is screen-printed while being transported while being held by the transport cylinder 171Ba is dried by the dryer 172B.

  Subsequently, the sheet 101 is replaced with the suction drum 181 of the reversing unit 180, so that the rear end side (butt side) is sucked to the suction drum 181 so that one surface faces the front side, and the tip side is The sheet is held by the sheet holding device and conveyed.

  In the reversing unit 180, as described above, the other surface of the sheet 101 subjected to screen printing is conveyed as it is (not reversed) for intaglio printing, or the sheet 101 not subjected to screen printing is conveyed. It is appropriately selected whether to invert and convey on one side to perform intaglio printing. That is, when the sheet 101 is not reversed, the front end side of the sheet 101 conveyed on the suction cylinder 181 is replaced by the sheet holding device of the reversal cylinder 182, while when the sheet 101 is reversed, the sheet 101 is positioned on the suction cylinder 181. It is only necessary to replace the bottom side of the sheet 101 to be conveyed by the sheet holding device of the reversing cylinder 182.

  Hereinafter, a case where the sheet 101 is reversed, that is, a case where intaglio printing is performed on one surface of the sheet 101 not subjected to screen printing will be described.

  The leading end side of the sheet 101 conveyed on the suction cylinder 181 with one surface facing the front side passes through the sheet transfer position with the reversing cylinder 182 and is conveyed on the suction cylinder 181, and then the bottom side of the sheet 101 is reversed. By being replaced by the sheet holding device of the cylinder 182, the sheet is held and conveyed by the reversing cylinder 18 with one surface facing the front side.

  After that, the sheet 101 is transferred to the transfer cylinder 174 and is held and conveyed by the transfer cylinder 174 so that the other side faces the front side. Then, the sheet 101 is transferred to the transfer cylinder 175 and the other side is set to the front side. It is held by the transfer cylinder 175 and conveyed.

  Next, the sheet 101 is held on the peripheral surface of the impression cylinder 192 so that one surface thereof is directed to the front side by being replaced with the impression cylinder 192 via the transfer cylinder 191 of the intaglio printing unit 190. .

  Here, various inks in an inking device (not shown) are transferred to the ink collecting cylinder 194 via the ink forming cylinder 195 and supplied to the intaglio cylinder 193, and the surplus portion is removed by the wiping roller 196, and the wiping tank 197 is removed. It is washed away in.

  When the sheet 101 passes between the impression cylinder 192 and the intaglio cylinder 193, the ink supplied to the intaglio plate of the intaglio cylinder 193 is retained on the peripheral surface of the impression cylinder 192. After being transferred to one surface, the sheet is held and conveyed by the hook of the conveying chain 114 via the delivery cylinder 113 of the sheet discharging device 112, and discharged onto the sheet stacking tables 115A to 115B.

  Note that the case where the sheet 101 is not reversed, that is, the case where intaglio printing is performed on the other surface of the sheet 101 on which screen printing is performed, is self-explanatory and will not be described.

  In this way, in the present embodiment, in the screen printing unit 160, the transfer cylinder 161 that delivers the sheet 101 to the impression cylinder 162 is positioned above the impression cylinder 162, and the space formed thereby makes it possible to use the rotary screen cylinder. 163 is positioned on the side of the impression cylinder 162 so that ink, varnish, and the like are collected in the squeegee portion of the rotary screen cylinder 163. Specifically, the installation angle θ with respect to the horizontal line H of the squeegee 167 in the squeegee portion was set as θ ≧ 0 degrees.

  As a result, even if the screen 165 of the rotary screen cylinder 163 is damaged without impairing the function of supplying the screen printing liquid such as ink or varnish to the sheet at the time of printing, the impression cylinder 162 is formed below the rotary screen cylinder 163. Therefore, it is possible to minimize the damage caused by the screen printing liquid at the time of breakage to the impression cylinder 162 and the like, and the reliability of the apparatus is improved.

  Further, since the first to fourth offset printing units 120, 130, 140, 150 and the intaglio printing unit 190 are combined in addition to the screen printing unit 160, three types of printing can be performed in one pass. In addition to the reliability of the unit 160, the versatility of the printing press increases.

  In addition, the reversing unit 180 conveys the sheet 101 as it is without reversing the front and back to perform intaglio printing on the other surface of the sheet 101 that has been screen printed by the screen printing unit 160 and dried by the second drying unit 170B. Whether to carry the intaglio printing on one side of the sheet 101 that has not been screen-printed can be selected as appropriate depending on the printing specifications, so that it can be appropriately selected according to the printing specifications. Since the combination (front and back variations) on the printing surface can be easily selected and changed with a single printer, versatility is further enhanced.

  The screen printing apparatus according to the present invention and the combination printing machine equipped with the screen printing apparatus can minimize the damage of the liquid for screen printing when the screen of the rotary screen cylinder is broken, and perform various printing in one pass. In addition, since it can be effectively applied with variations of the printing surface, it can be used extremely beneficially in manufacturing banknotes such as banknotes and securities such as stock certificates and bonds.

DESCRIPTION OF SYMBOLS 100 Combination printer 101 Sheet 110 Sheet supply apparatus 111 Feeder board 112 Sheet discharge apparatus 113 Delivery cylinder 114 Conveying chain 115A-115C Sheet loading stand 120 First offset printing unit (offset printing apparatus)
120a Transfer cylinder for one side 121a Impression cylinder for one side 122a Rubber cylinder for one side 123a Plate cylinder for one side 124a Inking device for one side 125a Water supply device for one side 121b Pressure cylinder for the other side 122b Rubber cylinder for the other side 123b Plate cylinder for the other side 124b Ink device for the other side 125b Water supply device for the other side 130 Second offset printing unit (offset printing apparatus)
131a Impression cylinder for one side 132a Rubber cylinder for one side 133a Plate cylinder for one side 134a Ink device for one side 135a Water supply device for one side 130b Transfer cylinder for the other side 131b Impression unit for the other side 131b Impression unit for the other side 132b Rubber cylinder for the other side 133b Plate cylinder for the other side 134b Ink device for the other side 135b Water supply device for the other side 140 Third offset printing unit (offset printing apparatus)
141a Impression cylinder for one side 142a Rubber cylinder for one side 143a Plate cylinder for one side 144a Ink device for one side 145a Water supply device for one side 140b Transfer cylinder for the other side 141b Impression unit for the other side 142b Rubber cylinder for the other side 143b Plate cylinder for the other side 144b Inking device for the other side 145b Water supply device for the other side 150 Fourth offset printing unit (offset printing device)
151a Impression cylinder for one surface 152a Rubber cylinder for one surface 153a Plate cylinder for one surface 154a Ink device for one surface 155a Water supply device for one surface 150b Transfer cylinder for the other surface 151b Impression device for the other surface 152b Rubber cylinder for the other side 153b Plate cylinder for the other side 154b Ink device for the other side 155b Water supply device for the other side 160 Screen printing unit (screen printing device)
161 Transfer cylinder 162 Pressure cylinder 163 Rotary screen cylinder 164 Sheet holding device (sheet holding device)
165 Screen 166 Squeegee shaft 167 Squeegee 170A First drying section 171Aa One side transport drum 172Aa One side dryer 171Ab The other side transport cylinder 172Ab The other side dryer 170B Second drying section 171B Transport cylinder 172B Drying Container 173 Transfer cylinder 174 Transfer cylinder 175 Transfer cylinder 180 Reversing part 181 Adsorption cylinder 182 Reversing cylinder 190 Intaglio printing unit (intaglio printing apparatus)
190A Frame 191 Transfer cylinder 192 Impression cylinder 193 Intaglio cylinder 194 Ink collecting cylinder 195 Inking cylinder 196 Wiping roller 197 Wiping tank H Horizontal line θ Squeegee installation angle relative to horizontal line

Claims (7)

A pressure drum (excluding a rubber blanket cylinder and a screen printing cylinder) that includes a sheet holding apparatus that holds the sheet, receives the sheet from the upstream sheet conveying apparatus via the sheet holding apparatus, and conveys the sheet;
A rotary screen cylinder that screen-prints a sheet held on the impression cylinder in contact with the impression cylinder;
In a screen printing apparatus comprising:
Positioning the upstream sheet conveying device above the impression cylinder;
The rotary screen cylinder was positioned on the side of the impression cylinder so that the screen printing liquid was collected in the squeegee portion of the rotary screen cylinder.
A screen printing apparatus characterized by that. The screen printing apparatus according to claim 1, further comprising: a cylinder that is positioned above the impression cylinder so as to contact the impression cylinder and receive a sheet from the impression cylinder. The sheet holding device is provided in a notch formed on the outer periphery of the impression cylinder, and includes a claw that can be opened and closed to hold and release the sheet. Or the screen printing apparatus of Claim 2. The screen printing apparatus according to claim 3, wherein the claw has a guide surface that is continuous with the outer peripheral surface of the impression cylinder and has substantially the same curvature as the outer peripheral surface. A gap guard is provided so as to cover the notch portion of the impression cylinder, and has a guide surface having a curvature substantially the same as that of the outer circumferential surface continuously with the outer circumferential surface of the impression cylinder. The screen printing apparatus according to claim 3 or 4.   A combination printing machine comprising a reversing unit and an intaglio printing device in addition to the screen printing device according to any one of claims 1 to 5.   The combination printing machine according to claim 6, further comprising an offset printing apparatus.

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