KR100671260B1 - Blanket continuous supply type transfer roll system and blanket thereof - Google Patents

Abstract

A blanket continuous supply-type transfer roll system and a blanket thereof are provided to improve the printing quality by easily replacing the blanket and increasing the usage period of the blanket. A blanket continuous supply-type transfer roll system(100) comprises a first hollow transfer roll(110) inserted into an opening(111) where both sides of a blanket(101) is longitudinally formed, wherein the blanket receives the ink from the pattern roll to supply the ink to the object, and contacted with the pattern roll and the object to rotate; a first unused-blanket roll(120) and a first used-blanket roll(130) rotatably installed in the first transfer roll to roll the unused area and the used area of the blanket; and a first rotating unit(140) placing the unused area of the blanket at the outer peripheral surface of the first transfer roll by rotating the first used-blanket roll and rolling the used area of the blanket.

Description

BLANKET CONTINUOUS SUPPLY TYPE TRANSFER ROLL SYSTEM AND BLANKET THEREOF}

1 is a schematic diagram showing an offset printing machine according to the prior art,

Figure 2 is a side view showing a blanket continuous feed transfer roll system according to a first embodiment of the present invention,

Figure 3 is a side view showing a blanket continuous feed transfer roll system according to a second embodiment of the present invention,

Figure 4 is a side view showing a blanket continuous feed transfer roll system according to a third embodiment of the present invention,

Figure 5 is a side view showing a blanket continuous feed transfer roll system according to a fourth embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

101,201,301,401: blanket 101a: friction reducing layer

110: first transfer roll 111: opening

112,113: guide roll 114: elastic member

120: first unused blanket roll 130: first use blanket roll

140: first rotating means 210: second unused blanket roll

220: second transfer roll 221: first contact roll

222: second contact roll 230: second use blanket roll

240: second rotation means 250: speed control rotation means

260: first roll movement means 270: first dancer

280: reverse rotation means 310,410: third transfer roll

311,411: 3rd contact roll 312,412: 4th contact roll

320,330,421,422, ....., 427: Route providing roll

340,430: third rotating means 350,440: second roll moving means

360: the second dancer

The present invention relates to a blanket continuous feed transfer roll system and a blanket used therein, and more particularly, to increase the productivity of the print job by facilitating the replacement of the blanket, and the hassle caused by the replacement work by increasing the use cycle of the blanket. A blanket continuous feed transfer roll system and a blanket used therein are provided.

In general, as a method of printing on a printed object, various methods such as attaching a printed film to a printed object, silk screen printing, gravure printing, real-time printing, offset printing, and the like are used.

In such a printing method, offset printing uses a rubber or silicon blanket attached to the surface of a transfer roll to turn off ink on a pattern roll to set ink on a print object. set) prints a desired pattern, character, symbol, or the like on a print object.

The offset press according to the prior art will be described with reference to the accompanying drawings.

1 is a schematic diagram showing an offset printing machine according to the prior art. As shown, the conventional offset printing machine 10 has a pattern roll 11 on which the ink 1 is buried by an ink roller (not shown) for conveying the ink 1, and a surface of the pattern roll 11. The attached ink 1 is transferred and the blanket 12 made of rubber, silicone or other synthetic resin is wound, and the blanket 12 is brought into close contact with the printing object 2 such as paper, fabric, and glass plate. Transfer roll 13.

In the pattern roll 11, a printing plate 14 having a printed shape is wound on an outer circumferential surface thereof, and ink 1 is attached to the printing plate 14 by contact with an ink roller (not shown), and contact with the transfer roll 13. And rotate to transfer the ink to the blanket 12.

The transfer roll 13 is rotated by a separate rotation means such as a motor or the like by the movement of the print object 2, the friction force, thereby causing the ink (1) attached to the blanket 12 wound on the outer peripheral surface By transferring to the print object 2, a desired pattern or the like is printed on the print object 2.

However, such a conventional offset printing press 10 has a blanket 12 is wound on the outer circumferential surface of the transfer roll 13 is in constant contact with the chemicals such as various organic solvents contained in the ink (1) As the characteristics of) deteriorate, as the printing is repeated, the print quality such as the print dimension or the print appearance deteriorates, and the print quality cannot be maintained uniformly.

In particular, in the case of high-speed offset printing, the blanket 12 is formed of a rubber or the like by an ultraviolet ray when an ultraviolet ray is used as an energy source for drying the ink 1 attached to the blanket 12 of the transfer roll 13. There was a problem that the deterioration of characteristics is accelerated.

In addition, due to the problems described above, the offset printer 10 is monitored by monitoring the deterioration of the characteristics of the blanket 12 in order to prevent print quality deterioration and maintaining the print quality uniformly, and periodically replacing the blanket 12. In addition to the complexity, it requires a high level of skill in the operator, which causes a problem of lowering the efficiency of the print job.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is to increase the productivity of the print job by the easy replacement of the blanket, reduce the hassle caused by the replacement operation by increasing the use cycle of the blanket, The present invention provides a blanket continuous feed transfer roll system and a blanket used therein, which improve the printing quality such as dimensional accuracy and appearance of offset printing, maintain the uniformity, and increase the operation rate of the printing press.

In the present invention for achieving the above object, in the transfer roll system that receives the ink of the pattern roll to print on the printing object, both sides of the blanket surrounding the outer peripheral surface is inserted into the opening formed along the longitudinal direction, the blanket is a pattern Unused blankets are rotatably installed inside the first transfer roll and the hollow first transfer roll which rotates in contact with the pattern roll and the printed object so as to receive ink from the roll and to supply the printed object. The first unused blanket roll and the first used blanket roll in which the part and the used part are respectively rolled, and the unused part of the blanket rolled on the first unused blanket by rolling the used part of the blanket by rotating the first used blanket roll to the first And first rotating means positioned on an outer circumferential surface of the transfer roll.

In addition, the present invention provides a transfer roll system that receives the ink of the pattern roll to print on the printing object, the second unused blanket roll rolls the unused portion of the blanket for transferring the ink of the pattern roll to the printing object, and the second unused A second transfer roll to which the blanket is brought into close contact with the pattern roll and the print object, and a blanket passing through the second transfer roll is rolled so that the blanket released from the blanket roll receives ink from the pattern roll and supplies the ink to the print object. And a second rotating means for rotating the second used blanket roll so that the roll and the blanket rolled on the second unused blanket roll are rolled onto the second used blanket roll.

In addition, the present invention is a transfer roll system that receives the ink of the pattern roll to be printed on the printing object, the endless track type blanket having a margin, including the portion used for printing receives the ink from the pattern roll By rotating the third transfer roll and the third transfer roll which is installed to provide a moving path of the blanket together with the third transfer roll, the third transfer roll to closely adhere the blanket to the pattern roll and the printed object so as to supply the The blanket is characterized in that it comprises a third rotating means for making a crawler motion for printing.

In addition, the present invention is a blanket wound on the transfer roll to receive the ink from the pattern roll in the transfer roll system for offset printing to transfer to the printed object, in one side to be slid from the transfer roll surface when replacing from the transfer roll A friction reducing layer is provided.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

Figure 2 is a side view showing a blanket continuous feed transfer roll system according to a first embodiment of the present invention. As shown, the blanket continuous feed transfer roll system 100 according to the first embodiment of the present invention is a pattern roll 11 (FIG. 3) in which a printing plate supplied with ink from an ink roll (not shown) is installed on a surface thereof. 5 to receive the ink from the print object 2 (shown in FIGS. 3 to 5) and print the ink on the printed object 2 (shown in FIGS. 3 to 5), and the hollows on both sides of the blanket 101 surrounding the outer circumferential surface are inserted into the openings 111. The first transfer roll 110 and the first unused blanket roll 120 and the first used blanket roll 130 are rotatably installed inside the first transfer roll 110 to roll the blanket 101. It includes a first rotating means 140 for rotating the first use blanket roll 130.

The first transfer roll 110 is formed of a hollow tube having a space therein, an opening 111 is formed along the longitudinal direction, and both sides of the blanket 101 surrounding the outer circumferential surface are inserted through the opening 111, By rotating in contact with the pattern roll 11 (shown in FIGS. 3 to 5) and the print object 2 (shown in FIGS. 3 to 5), the blanket 101 located on the outer circumferential surface receives ink from the pattern roll and prints the ink. It is rotatably installed in the offset press to feed the object.

The first transfer roll 110 may be rotated by a rotation means such as a motor, if necessary, and may be rotated by friction with a print object having a pattern roll or linear motion in an idle state without a separate rotation means. It may be.

The first unused blanket roll 120 and the first used blanket roll 130 are rotatably installed in the inner space of the first transfer roll 110 so as to be parallel to each other along the longitudinal direction, and through the opening 111. The unused portion and the used portion of the blanket 101 to be inserted are rolled, respectively.

As the first rotating means 140, various means for rotating the first use blanket roll 130 may be used. In this embodiment, a motor installed in the first transfer roll 110 is used, and the first use blanket By rotating the roll 130, the used portion of the blanket 10 is rolled on the first used blanket roll 130, so that the unused portion of the blanket 101 rolled on the first unused blanket 120 is released and the first transfer roll ( 110) to the outer peripheral surface.

The first rotating means 140 may be driven arbitrarily, and the first rotation means 140 may be used to replace a certain length, for example, several mm to several tens of mm of the portion used for printing in the blanket 101 with a portion not used for printing. Rotate the blanket roll 130, or replace the entire portion used for printing in the blanket 101 with the portion not used for printing every certain number of print jobs, for example, the number of jobs requiring replacement according to the characteristics of the blanket 101. The first use blanket roll 130 may be rotated.

The first transfer roll 110 is installed on both sides of the opening 111 such that a pair of guide rolls 112 and 113 are rotatable along the longitudinal direction, and the guide rolls 112 and 113 support one side of the blanket 101 to rotate. This prevents the blanket 101 from being damaged by friction during movement.

One of the guide rolls 112 and 113 of the guide rolls 112 and 113 is hinge-fixed to the first transfer roll 110 by the link member 112a to move in the direction of adjusting the tension of the blanket 101 so as to be elastic member 114. The blanket 101 is elastically supported to be in close contact with the outer circumferential surface of the first transfer roll 110.

On the other hand, the blanket 101 is formed of a material such as silicone, rubber, synthetic resin, in this embodiment, the binder 101 is rolled on the first use blanket roll 130 by the first rotating means 140, The friction reducing layer on one side of the first transfer roll 110 in contact with the surface of the first transfer roll 110 so as to be able to slide while minimizing friction from the surface of the first transfer roll 110 when replacing the used portion of the blanket 101 from the first transfer roll 110 101a is provided.

The friction reducing layer 101a maintains the original length in spite of the action of tension when the blanket 101 made of a flexible material having a thickness of several mm moves along the surface of the first transfer roll 110 at a predetermined speed. As a sheet of polymer material such as PET, PE, PVC or the like, or a metal sheet such as stainless steel, steel, copper, etc., having a thickness of 1 mm or less so as to smoothly slide from the surface of the transfer roll 110, It is adhered to one side with an adhesive or the like.

The operation of the blanket continuous feed transfer roll system according to the first embodiment of the present invention having such a structure is performed as follows.

The first transfer roll 110 is rotated in contact with the pattern roll 11 (shown in FIGS. 3 to 5) and the print object 2 (shown in FIGS. 3 to 5), respectively, so that the outer circumferential surface except the opening 111 is rotated. The blanket 101 wound around the ink is separated from the ink attached in the form of a pattern to be printed on the pattern roll 11 and transferred to the print object 2 so that a desired pattern or the like is printed on the print object 2.

At this time, the first rotating means 140 rotates the first use blanket roll 130 so as to roll the blanket 101 by several mm to several tens of mm for every printing operation or the first transfer roll 110 for every predetermined number of prints. The first used blanket roll 130 by rotating the first used blanket roll 130 to replace the entire used portion of the blanket 101 positioned on the outer circumferential surface of the first unused portion rolled on the first unused blanket roll 120. In addition to preventing friction and stress from being concentrated and degrading the print quality, the use portion of the blanket 101 is gradually or temporarily replaced with the unused portion, thereby improving and maintaining the print quality and changing the blanket 101. Increasing the operation rate of the printing press to increase the productivity of the print job.

In addition, the guide roll 112 maintains and adjusts the tension of the blanket 101 by applying elasticity to the blanket 101 by the elastic member 114 to improve and maintain the printing dimension precision.

On the other hand, the blanket 101 is gradually replaced by several mm to several tens of mm or the entire used part at one time according to the performance of the blanket 101, for example, the hardness, the Young's modulus, the expansion ratio, the surface roughness, etc. are deteriorated. It can be replaced, if the performance of the blanket 101 is reduced in proportion to the number of repeated use it is preferable to gradually replace the blanket 101, when the blanket 101 is rapidly deteriorated after repeated use is used at a time It is desirable to replace the part as a whole.

The blanket 101 is slid so as to minimize the frictional force by the friction reducing layer 101a in contact with the surface of the first transfer roll 110 when moved along the outer circumferential surface of the first transfer roll 110 for replacement so as to reduce the length by the tension or the like. It prevents the deterioration of print quality due to the deformation of the shape and facilitates the replacement.

Figure 3 is a side view showing a blanket continuous feed transfer roll system according to a second embodiment of the present invention. As shown, the blanket continuous feed transfer roll system 200 according to the second embodiment of the present invention is a second unused blanket roll 210, the unused portion of the blanket 201 is rolled, and the second unused blanket roll A second transfer roll 220 which sequentially closes the blanket 201 released from the 210 to the pattern roll 11 and the print object 2, and the blanket 201 passing through the second transfer roll 220. The rolled second use blanket roll 230 and second rotation means 240 for rotating the second use blanket roll 230 are included.

In the second unused blanket roll 210, an unused portion of the blanket 201 that delivers the ink 1 attached to the pattern roll 11 to the print object 2, that is, a portion waiting to be used for printing, is rolled. .

The second transfer roll 220 receives the blanket 201 from the second unused blanket roll 210 to receive the ink 1 from the pattern roll 11 and to supply the blanket 201 to the printing object 2. The pattern roll 11 and the printed object 2 are in close contact with each other in sequence.

The second transfer roll 220 makes the blanket 201 released from the second unused blanket roll 210 adhere to the pattern roll 11 so that the ink 1 of the pattern roll 11 is transferred to the blanket 201. It includes a first contact roll 221 is installed so as to, and the second contact roll 222 is installed to be in close contact with the blanket 201 passing through the first contact roll 221 to the printing object (2).

The first and second contact rolls 221 and 222 have the same moving speed when the blanket 201 passes through the pattern roll 11 and the print object 2 so that the speeds in the tangential direction are the same in order to improve print quality. It is rotated together by being connected to each other by a belt 223 or a chain to the pulleys (221a, 222a).

The first or second contact rolls (221, 222) is a speed control rotation means 250 for generating a rotational force such as a motor to adjust the moving speed of the blanket 201 passing through the pattern roll 11 and the print object (2) This is connected, thereby allowing the movement speed of the blanket 201 rolled to the second use blanket roll 230 by the second rotating means 240 to be corrected to some extent according to the print quality or the print amount.

The second use blanket roll 230 passes through the second transfer roll 220 to finish the printing of the blanket 201.

On the other hand, the second contact roll 222 is in contact with the printing object (2) at the time of printing or the blanket 201 in order to change the portion used for printing in the blanket 201, the second use blanket roll 230 or the second The second use blanket by the first roll moving means 260 to be spaced apart from the print object 2 when rolling with the unused blanket roll 210 or to adjust the pressure at which the blanket 201 contacts the print object 2. It is moved up and down with the roll 230.

The first roll moving means 260 rotates the four-section link 261 and the four-section link 261 to support the second contact roll 222 and the second use blanket roll 230 to move along a predetermined path. Cylinder 262 that is operated by hydraulic or pneumatic pressure.

The four-section link 261 has three link members 261a, 261b, and 261c hingedly connected to each other, and both ends thereof are fixed to a hinge at a position of a printing press (not shown), and the second close contact with two moving hinges. The roll 222 and the second use blanket roll 230 are rotatably fixed, respectively, and are formed in a pair to support both ends of the second contact roll 222 and the second use blanket roll 230, respectively.

The cylinder 262 is installed in the four-section link 261 and reciprocates the second contact roll 222 and the second use blanket roll 230 up and down by rotating the four-section link 261 about the fixed hinge. Let's do it.

Various means may be used for the second rotating means 240 to rotate the second use blanket 230. In this embodiment, a motor is used and the blanket 201 rolled on the second unused blanket roll 210. The second use blanket roll 230 is rotated to be rolled on the second use blanket roll 230.

A first dancer 270 is installed on the movement path of the blanket 201 to support the blanket 201 so that the tension is maintained.

The first dancer 270 adjusts and maintains the tension of the blanket 201 by moving the dancer roll 271 installed to rotate and support one side of the blanket 201 by the cylinder 272.

As the reverse rotation means 280 such as a motor is installed on the second unused blanket roll 210, the reverse rotation means 280 reversely rotates the second unused blanket roll 210 to roll the second unused blanket roll 230. The blanket 201 is rolled onto the second unused blanket roll 210, thereby enabling the reuse of the blanket 201.

The operation of the blanket continuous feed transfer roll system according to the second embodiment of the present invention having such a structure is performed as follows.

The blanket 201 rolled on the second unused blanket roll 210 is rotated along the first and second contact rolls 221 and 222 by rotating the second used blanket roll 230 by driving the second rotating means 240. By moving, the pattern roll 11 and the print object 2 are sequentially in contact with each other. As a result, the blanket 201 separates the ink 1 of the pattern roll 11 and attaches the print object 2 to the print object 2. 2) to print the desired pattern. At this time, the print quality is improved by adjusting the moving speed of the blanket 201 by the speed regulating rotating means 250.

Therefore, the blanket 201 is prevented from degrading print quality due to the continuous use of a certain portion in printing or the like.

When the blanket 201 rolled on the second unused blanket roll 210 moves to the second used blanket roll 230, the second adhesion roll 222 is driven by driving the cylinder 262 of the first roll moving means 260. ) And the second use blanket roll 230 are raised while maintaining a constant distance by the four-section link 261, so that the second contact roll 222 is spaced upward from the printing object 2, and the reverse rotation means ( The second unused blanket roll 210 is rotated in the reverse direction with respect to the rotation direction during printing, thereby moving the blanket 201 rolled on the second unused blanket roll 230 to the second unused blanket roll 210. Rolling enables reuse of the blanket 201.

By the first roll moving means 260, the pressure for pressing the second adhesive roll 222 to press the blanket 201 to the print object 2 and the table 3 supporting the print object 2 has a set value. By retaining, the thickness and physical properties of the blanket 201 can be kept constant to improve and maintain printing accuracy and uniformity.

In addition, by maintaining and adjusting the tension of the entire blanket 201 by the first dancer 270, the printing dimension precision is improved and maintained.

Figure 4 is a side view showing a blanket continuous feed transfer roll system according to a third embodiment of the present invention. As shown, the blanket continuous feed transfer roll system 300 according to the third embodiment of the present invention is a pattern roll 11 of the endless track type blanket 301 having a marginal portion, including the portion used for printing ) And a third transfer roll 310 which closely adheres to the printed object 2, path providing rolls 320 and 330 which provide a moving path of the blanket 301 together with the third transfer roll 310, and a blanket ( 301 includes a third rotating means 340 for rotating the third transfer roll 310 to make a crawler motion.

The third transfer roll 310 receives the ink 1 from the pattern roll 11 and supplies the ink 1 from the pattern roll 11 to the printed object 2. The second transfer roll 220 of the second embodiment is provided. As shown in FIG. 3, the blanket 301 is installed to closely contact the blanket 301 to the pattern roll 11 and the blanket 301 passing through the third adhesion roll 311 is printed. And a fourth contact roll 312 installed to be in close contact with (2), wherein the third and fourth contact rolls 311 and 312 each have pulleys 311a and 312a connected to each other by a belt 313 or a chain. By rotating, the speed in the tangential direction is the same to maintain the moving speed of the blanket 301 uniformly, and to improve the print quality by reducing the tension on the blanket 301.

The path providing rolls 320 and 330 are rotatably installed to provide a moving path of the blanket 301 by rotationally supporting the blanket 301 that is supported by the third transfer roll 310 and is rotatably installed to perform the caterpillar motion. .

The path providing rolls 320 and 330 are made of at least one, and in the present embodiment, two path providing rolls 320 are provided. The path providing roll 320 has a third pulley 321 in close contact with the belt 322 or a chain. It is connected to the pulley (311a) of the roll 311 to rotate together with the third and fourth contact rolls (311, 312) to minimize the tension during the transfer of the blanket 301, the remaining path providing roll 330 in the idle state Is installed.

In order to contact the fourth contact roll 312 with the printing object 2 at the time of printing or to change the portion of the blanket 301 used for printing, the blanket 301 is separated from the printing object 2 at the time of transfer or the blanket A second roll moving means 350 is provided to reciprocate the fourth adhesion roll 312 up and down together with the path providing roll 330 in the idle state in order to adjust the pressure at which the 301 is in contact with the printing object 2. Can be.

As in the second embodiment, the second roll moving unit 350 is hinged at both ends thereof, and a pair of fourth contact rolls 312 and the path providing rolls 330 are rotatably fixed to two moving hinges, respectively. It is installed in the four-section link 351 and four-section link 351 includes a cylinder 352 which is operated by pneumatic or hydraulic pressure to rotate the four-section link 351 in the vertical direction around the fixed hinge.

A second dancer 360 is installed between the moving paths of the blanket 301 to support the blanket 301 so that the tension is maintained.

Like the first dancer 270, the second dancer 360 includes a dancer roll 361 for supporting the blanket 301 and a cylinder 362 for transferring the dancer roll 361.

The operation of the blanket continuous feed transfer roll system according to the third embodiment of the present invention having such a structure is performed as follows.

By rotating the third contact roll 311 of the third transfer roll 310 by the driving of the third rotating means 340, the crawler-type blanket 301 is connected to the third and fourth contact rolls 311 and 312. It is supported by the path providing rolls 320 and 330 to perform the caterpillar motion. At this time, the blanket 301 is in close contact with the pattern roll 11 by the third adhesion roll 311 receives the ink 1 from the pattern roll 11 to move to the fourth adhesion roll 312 to the fourth A desired pattern or the like is printed on the printed object 2 by transferring the ink 1 to the printed object 2 by pressing the adhesion roll 312.

At this time, the second roll movement means after a certain number of times or for a predetermined time in order to prevent the bad influence on the print quality due to the endless track movement of the blanket 301 is worn out because the same portion is continuously used for printing By the driving of the cylinder 352 of the 350, the fourth adhesive roll 312 and the path providing roll 330 are moved upward while maintaining a predetermined distance from each other, so that the fourth adhesive roll 312 is to be printed. (2) away from it. Then, the position of the blanket 301 is changed by driving the third rotating means 340 so that the portion of the blanket 301 that is not used for printing is used for printing, which causes deterioration such as wear of the blanket 301. This prevents the print quality from deteriorating.

In addition, it is possible to improve the print quality by adjusting the pressure at which the blanket 301 contacts the print object 2 through the shank east of the fourth contact roll 312 by the second roll moving means 350. .

Figure 5 is a side view showing a blanket continuous feed transfer roll system according to a fourth embodiment of the present invention. As shown, the blanket continuous feeding transfer roll system 400 according to the fourth embodiment of the present invention is a pattern roll 11 of the endless track type blanket 401 having a marginal portion, including the portion used for printing ) And a third transfer roll 410 to closely adhere to the printed object 2 and a path providing rolls 421 and 422 which provide a moving path of the blanket 401 together with the third transfer roll 410. And 427, and a third rotating means 430 for rotating the third transfer roll 410 so that the blanket 401 performs the tracked motion.

The third transfer roll 410 is composed of the third and fourth contact rolls 411 and 412, and the description thereof will be omitted since the third transfer roll 410 is described in the third embodiment together with the third rotating means 430.

The path providing rolls 421, 422,..., 427 are provided in a zigzag manner so that the blanket 401 moves zigzag in order to secure the maximum space in a limited space where the blanket 401 is not used for printing. .

In order to change the portion used for printing in the blanket 401, the fourth contact roll 412 that has been in contact with the printing object 2 when the blanket 401 is moved, or the fourth contact roll 412 is printed during printing. A cylinder, such as a cylinder, is attached to the fourth contact roll 412 to move the fourth contact roll 412 up and down to contact the object 2 or adjust the pressure at which the blanket 401 comes into close contact with the print object 2. The third roll moving means 440 is installed.

Any of the path providing rolls 421, 422,..., 427 to move the fourth contact roll 412 up and down by the third roll moving means 440 or to keep the tension of the blanket 401 constant during printing. One path providing roll 425 is guided to move up and down, and is installed to press the blanket 401 downward. At this time, the weight 428 may be fixed to the path providing roll 425 is installed to move up and down according to the desired tension size of the blanket 401.

The operation of the blanket continuous feed transfer roll system according to the fourth embodiment of the present invention having such a structure is performed as follows.

By rotating the third contact roll 411 of the third transfer roll 410 by the driving of the third rotating means 430, the crawler-type blanket 401 is subjected to the endless orbiting movement of the pattern roll 11 After the ink 1 is separated and transferred to the print object 2, the printing is performed, and after use for a predetermined number of times or for a predetermined time to prevent abrasion due to the same portion of the blanket 301 being continuously used for printing. By the driving of the third roll moving means 440, the fourth contact roll 412 moves upward to be spaced apart from the print object 2. Then, by driving the third rotating means 430 to change the position of the portion used for printing in the blanket 401 to increase the effective length of the blanket 401, which causes the blanket 401 due to deterioration, such as wear This prevents the print quality from deteriorating.

Further, by pressing the blanket 401 downward, the cross-sectional dimension of the blanket 401 is set or kept constant by the path providing roll 425 which maintains and adjusts the tension of the entire blanket 401. 2) Improve and maintain the print dimensional accuracy of the print line width, print thickness, print interval, etc. for.

As described above, according to the preferred embodiment of the present invention, the replacement of the blanket is easy, thereby increasing the productivity of the printing job, and the ink is contained in the ink by repeating off and set of the ink at a predetermined position in the blanket. By changing the position of the blanket to prevent intensive denaturation, expansion or compression by chemicals, it increases the service life of the blanket, reducing the hassle of replacement work, and reducing the dimensional accuracy and appearance of offset printing. In addition to improving the printing quality of the back and the like, it is kept uniform and the operation rate of the printing press is increased.

In addition, the printing object of the present invention may be a paper, a glass plate, a fabric, a product of a variety of other materials, in addition to the present invention in the case of printing a discharge electrode or a dielectric layer, etc. on a flat panel display panel that requires precision printing dimensions When printing the copper foil pattern, soldering resist, etc. of a multilayer type surface mount board | substrate, it is effective when using for high speed offset printing etc. using an ultraviolet curable ink.

As described above, the blanket continuous feed transfer roll system according to the present invention increases the productivity of the print job by the easy replacement of the blanket, reduce the hassle of replacement work by increasing the use cycle of the blanket, offset printing It has the effect of improving the printing quality, such as the dimensional accuracy and appearance, and maintaining it uniformly, increasing the operation rate of the printing press.

What has been described above is only an embodiment for implementing a blanket continuous feed transfer roll system according to the present invention, the present invention is not limited to the above embodiment, as claimed in the following claims of the present invention Without departing from the gist of the present invention, one of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (23)

In the transfer roll system that receives the ink of the pattern roll and prints on the printed object, Both sides of the blanket surrounding the outer circumferential surface is inserted into the opening formed along the longitudinal direction, the first hollow of the hollow to rotate in contact with the pattern roll and the print object so that the blanket receives the ink from the pattern roll to supply to the print object Transfer roll, First unused blanket rolls and first use blanket rolls rotatably installed in the first transfer roll, respectively, in which unused portions and used portions of the blanket are inserted through the openings; First rotating means for positioning the unused portion of the blanket rolled on the first unused blanket on the outer circumferential surface of the first transfer roll by rotating the first used blanket roll to roll the used portion of the blanket; Blanket continuous feed transfer roll system comprising a. The method of claim 1, The first transfer roll, A pair of guide rolls rotatably installed to prevent the blanket from being damaged by friction when the blanket is moved by rotationally supporting the blanket in the opening Blanket continuous feed transfer roll system characterized in that. The method of claim 2, The first transfer roll, An elastic member is installed on any one of the guide rolls so that the guide rolls elastically support the blanket to be in close contact with the outer circumferential surface of the first transfer roll. Blanket continuous feed transfer roll system characterized in that. The method of claim 1, The first rotating means, Rotating the first use blanket roll so that a certain length of a portion used for printing in the blanket is replaced with a portion not used for printing in each printing operation. Blanket continuous feed transfer roll system characterized in that. The method of claim 1, The first rotating means, Rotating the first used blanket roll to replace the entire portion of the blanket used for printing with a portion not used for printing every predetermined number of print jobs. Blanket continuous feed transfer roll system characterized in that. In the transfer roll system that receives the ink of the pattern roll and prints on the printed object, A second unused blanket roll on which unused portions of the blanket for transferring the ink of the pattern roll to the printing object are rolled; A second transfer roll which closely adheres the blanket to the pattern roll and the print object such that the blanket released from the second unused blanket roll receives ink from the pattern roll and supplies the ink to the print object; A second used blanket roll through which the blanket passing through the second transfer roll is rolled; Second rotating means for rotating the second used blanket roll so that the blanket rolled on the second unused blanket roll rolls on the second used blanket roll Blanket continuous feed transfer roll system comprising a. The method of claim 6, The second transfer roll is, A first adhesion roll installed to closely contact the blanket released from the second unused blanket roll with the pattern roll; A second adhesion roll installed to closely adhere the blanket passing through the first adhesion roll to the printing object; Blanket continuous feed transfer roll system comprising a. The method of claim 7, wherein The first and second contact rolls, Connected together and rotating together so that the tangential velocity is the same Blanket continuous feed transfer roll system characterized in that. The method according to claim 7 or 8, Speed control rotation means for adjusting the moving speed of the blanket passing through the pattern roll and the printing object by rotating the first or second contact rolls A blanket continuous feed transfer roll system further comprising. The method according to claim 7 or 8, First roll moving means for moving the second contact roll together with the second use blanket roll so that the second contact roll is in contact with or spaced apart from the printing object. A blanket continuous feed transfer roll system further comprising. The method of claim 10, The first roll moving means, Both ends are fixed to the hinge, and the four cutting link that is rotatably fixed to the second contact roll and the second use blanket roll to the two moving hinges, The cylinder is installed in the four-link link, the cylinder for rotating the four-link link about the fixed hinge Blanket continuous feed transfer roll system comprising a. The method of claim 6, A first dancer installed on a movement path of the blanket to support the blanket to maintain tension Blanket continuous feed transfer roll system further comprising. The method of claim 6, Reverse rotation means for reverse rotation of the second unused blanket roll so that the blanket rolled on the second used blanket roll is rolled on the second unused blanket roll A blanket continuous feed transfer roll system further comprising. In the transfer roll system that receives the ink of the pattern roll and prints on the printed object, A third transfer roll which closely adheres the blanket to the pattern roll and the print object such that an endless track type blanket having a margin, including a portion used for printing, receives ink from the pattern roll and supplies the ink to the print object; , At least one path providing roll installed to provide a moving path of the blanket together with the third transfer roll; Third rotating means for rotating the third transfer roll to allow the blanket to move in orbit for printing Blanket continuous feed transfer roll system comprising a. The method of claim 14, The third transfer roll is, A third contact roll installed to closely contact the blanket to the pattern roll; A fourth adhesion roll installed to closely adhere the blanket passing through the third adhesion roll to the printing object; Blanket continuous feed transfer roll system comprising a. The method of claim 15, The third and fourth contact rolls, Connected together and rotating together so that the tangential velocity is the same Blanket continuous feed transfer roll system characterized in that. The method of claim 16, The third and fourth contact rolls, In which one of the path providing rolls is connected to each other so that the tangential velocity is the same Blanket continuous feed transfer roll system characterized in that. The method according to claim 15 or 16, Second roll moving means for moving the fourth contact roll together with any one of the path providing rolls to contact or space the fourth contact roll from the printing object; A blanket continuous feed transfer roll system further comprising. The method of claim 18, The second roll moving means, Both ends are fixed to the hinge, the four link and the fourth contact roll and the path providing roll is rotatably fixed to the two moving hinges, The cylinder is installed in the four link link to rotate the four link link about the fixed hinge Blanket continuous feed transfer roll system comprising a. The method of claim 14, A second dancer installed on a movement path of the blanket to support the blanket to maintain tension Blanket continuous feed transfer roll system further comprising. The method according to claim 15 or 16, Third roll moving means for moving the fourth contact roll to contact or space the fourth contact roll to the printing object, The path providing roll providing the moving path of the blanket is made of a plurality so that the blanket moves in a zigzag, any one of which is installed to press the blanket downward by weight to maintain the tension of the blanket Blanket continuous feed transfer roll system characterized in that. In the blanket roll wound on the transfer roll to receive the ink from the pattern roll in the transfer roll system for offset printing to the printed object, The friction reducing layer is provided on one side so as to slide from the surface of the transfer roll when replacing from the transfer roll. Blanket of continuous feed transfer roll system of the blanket. The method of claim 22, The friction reducing layer, A sheet of polymer material or a thin plate of metal material, bonded to one side of the blanket Blanket of continuous feed transfer roll system of the blanket.

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