KR20040019653A - A web type offset printer for adhesive paper - Google Patents

Abstract

PURPOSE: A rotational type offset printer for adhesive papers is provided to perform printing work with respect to adhesive papers without attaching a laminating strip to the adhesive papers. CONSTITUTION: A rotational type offset printer includes a paper feeding unit(100), four printing units(200), and a paper cut/stacking unit(300). The paper feeding unit(100) feeds adhesive printing papers into the printing units(200). The printing units(200) perform printing work with respect to adhesive papers fed from the paper feeding unit(100). The paper cut/stacking unit(300) cuts the adhesive printing papers and loads the adhesive printing papers on a paper stacking table. Surfaces of rollers are coated with metal so as to attenuate adhesive force between the adhesive printing papers and the rollers.

Description

Offset printing machine for rotary adhesive paper {A WEB TYPE OFFSET PRINTER FOR ADHESIVE PAPER}

The present invention relates to an offset printing machine for a rotatable adhesive paper, and more particularly, an offset press for a rotatable adhesive paper having a roller of a paper feeder coated with a metal material and a roller of a printing unit for smooth transfer of the adhesive paper. It is about.

The rotatable offset printing machine is a paper feeder for supplying a wound printing paper, an offset printing unit for printing the supplied printing paper, a cutting device for cutting the printed paper, and a badge for stacking the cut paper. It consists of a device. Offset printing is a printing method in which the printing ink is not directly transmitted from the printing plate to the printing paper, but is transmitted through the blanket. The offset printing unit is provided with an ink device for supplying ink, a damper device for supplying water, and a printing plate and a blanket. Is installed.

As a general rotary offset printing machine having the above configuration, a rotary offset printing machine capable of directly and continuously printing on a pressure-sensitive adhesive paper having an adhesive on one surface is not known. This is because the adhesive is attached to the roller and the cylinder when the adhesive sheet passes through the roller of the feeder of the general rotary offset printing machine and the cylinder of the printing unit, and thus it is impossible to accurately adjust the tension and register.

As a method of manufacturing a memo paper on which a specific letter or figure is printed on a memo surface of a conventional sticky note paper, there is a method of printing on a plain paper and then applying an adhesive on the back side and cutting it to an appropriate size. The printing machine which prints in such a manner is a designation of an adhesive note paper machine, and is disclosed in Korean Utility Model Registration No. 20-282324 filed on April 15, 2002.

However, in the above process, since the pressure-sensitive adhesive is applied to the printed paper separately, the process is cumbersome, and in particular, when the content to be printed is small in color, the printing cost becomes expensive and the manufacturing itself is difficult in many cases. .

In order to solve the problems described above, there is a printing paper which can be directly printed by attaching a thin list lip on the surface to which the pressure-sensitive adhesive is applied to put in a printing machine. For the printing paper, the name of the invention is 'printing paper for computer' and is disclosed in Korean Utility Model Registration No. 20-247226 filed on June 11, 2001.

However, the printing paper disclosed in the utility model requires a separate process of attaching the thin list lip to the surface on which the pressure-sensitive adhesive of the printing paper is applied, and additional costs are required, and if it is to be manufactured in the form of a known sticky note paper, There is a need for a process that requires removal of the release strip.

Accordingly, there is a demand for the development of a rotatable oppress printer capable of rapidly color printing a specific character or figure without attaching a separate paper such as a peeling strip to the adhesive face of the adhesive paper.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a rotatable oppress printer having a special roller and an impression cylinder processed to enable direct printing without attaching a separate paper such as thin list lip to an adhesive paper. It is done.

In addition, the present invention is a pressure-sensitive adhesive paper printed by spraying air from the bottom of the printing paper in order to prevent the stacking failure caused by the adhesive applied to the lower surface of the paper when the printed adhesive paper is cut and laminated on the mounting table An object of the present invention is to provide a rotatable offset printing machine having a nozzle capable of accurately laminating a film.

In addition, the present invention provides a static electricity removing device that can remove the static electricity generated on the upper and lower surfaces of the printing paper in order to prevent the stacking failure caused by the static electricity generated on the paper when the printed adhesive paper is cut and laminated on the mounting table An object of the present invention is to provide a rotary offset printing machine.

1 is a schematic perspective view of an offset printing machine for a rotatable adhesive paper according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the paper feeder of the offset printing machine for rotatable pressure-sensitive adhesive paper according to an embodiment of the present invention

Figure 3 is a detailed perspective view showing the installation state of the scraping means of the offset printing machine for rotatable pressure-sensitive adhesive paper according to an embodiment of the present invention

Figure 4 is a perspective view of a roller installed in the offset printing machine for rotatable adhesive paper according to an embodiment of the present invention

Fig. 5 is an exploded perspective view showing the structure of an edge position adjusting device for an offset printing machine for a rotatable adhesive paper according to an embodiment of the present invention.

Figure 6 is a schematic perspective view of the discharge and cutting device of the offset printing machine for rotatable adhesive paper according to an embodiment of the present invention

<Short description of symbols>

100 Feeder 110 Tension measuring roller

130 Infindal Roller 150 Scraping Means

160 Edge Position Adjuster 200 Printing Unit

220 Impression Cylinder 230 Blanket Cylinder

300 cutting / disposing device 310 cutting roller

320 Feeding Rollers330, 340 Static eliminator

350 Air Supply Nozzle 370 Loading Rack

The present invention is to achieve the above object, the rotatable offset printing machine according to the present invention, a feeding device for supplying the wound adhesive paper, and a plurality of printing for printing on the adhesive paper supplied from the paper feeding device A rotary offset printing machine including a cutting unit and a cutting / dispensing apparatus for cutting and discharging adhesive paper printed through the plurality of printing units, the rotary offset printing machine comprising: a plurality of sheets for guiding paper supplied to a printing unit installed in the paper feeding apparatus; A metal material is thermally coated on the surface of the roller, and the metal material is thermally coated on the surface of the impression cylinder installed in the printing apparatus.

In addition, the rotatable offset printing machine according to the present invention is characterized in that the paper-feeding device is provided with a scraping means for contacting the surface to which the pressure-sensitive adhesive of the pressure-sensitive paper is not attached so as to scrape the contact surface when the pressure-sensitive paper is supplied to the printing unit. .

In addition, the rotatable offset printing machine according to the present invention, the scraping means is a scraping bar having a blade length longer than the width of the printing paper and at least one axis of the plurality of roller shafts provided at both ends of the scraping bar in the paper feeder It characterized in that it comprises a bracket for fixing to.

In addition, the rotatable offset printing machine according to the present invention further comprises a rotating means capable of rotating the shaft of the roller on which the fixing bracket of the scraping means is installed to adjust the contact pressure between the scraping bar and the printing paper. It features.

In addition, the rotatable offset printing machine according to the present invention, the paper feeder further comprises an edge position adjusting device of the printing paper, the edge position adjusting device is a sensor for detecting the edge position, the edge receiving the signal from the sensor A controller for outputting a control signal for adjusting the position, a first roller for guiding the printing paper by contacting the adhesive-free surface of the printing paper according to the control signal of the controller, and horizontally installed with respect to the first roller And a paper rotating means capable of rotating the second roller horizontally at an angle with respect to the center of the length of the first roller.

In addition, the rotatable offset printing machine according to the present invention, the particle size of the metal material sprayed on the surface of the plurality of rollers is in the range of 200 to 300 mesh, the particle size of the metal material coated on the impression cylinder is 300 to 500 Characterized in that it is within the mesh range.

According to the present invention, the surface of the roller of the paper feeder and the impression cylinder of the printing unit is coated with a metal material, so that the adhesive force of the adhesive is weaker than that of the roller or impression cylinder where the adhesive of the printing paper is not coated with the metal material. The influence of adhesive force can be reduced during printing. In particular, by coating a metal material having a particle size in the range of 300 to 500 mesh on the outer peripheral surface of the impression cylinder, it is possible to eliminate the defects of the printing surface due to the unevenness of the surface of the impression cylinder and at the same time reduce the adhesive strength of the adhesive to the surface of the impression cylinder .

In addition, the rotary offset printing machine according to the present invention, the cutting / dispensing device is a cutting roller for cutting the printed adhesive paper to a suitable length, a feeding roller for discharging the adhesive paper cut by the cutting roller, and And a loading table for loading the cut adhesive paper discharged by the feeding roller, and an air supply nozzle for supplying air to the lower portion of the cutting paper loaded on the loading table to control the drop of the paper. The surface of the metal material is characterized in that the coating.

In addition, the rotatable offset printing machine according to the present invention has a groove having a predetermined depth in the circumferential direction on a part of the coated surface of the feeding roller, and the air supply nozzle protrudes to the upper surface of the paper passing through the feeding roller. It is characterized in that it is installed inside the groove so as not to.

In addition, the rotatable offset printing machine according to the present invention includes a first static electricity removing device installed to remove the static electricity of the adhesive-adhesive side of the adhesive paper between the cutting roller and the feeding roller of the cutting / disposing device; And a second static electricity removing device installed to remove the static electricity on the opposite side to which the pressure-sensitive adhesive of the pressure-sensitive adhesive paper is attached on the upper portion of the base.

According to the present invention, when the printed adhesive paper is cut to a certain length and laminated on the loading table, the adhesive paper is moved to a point to be laminated by spraying air on the lower surface to which the adhesive of the adhesive paper is applied. It is attached to the laminated paper, it is possible to prevent the stacking failure occurs.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a schematic perspective view of an offset printing machine for a rotatable adhesive paper according to an embodiment of the present invention.

As shown in Figure 1, the offset printing machine for pressure-sensitive adhesive paper according to an embodiment of the present invention is a paper feeding device 100 for supplying the wound adhesive printing paper to the printing unit, and the adhesive printing paper supplied from the paper feeding device Four printing units 200 for printing, and a cutting / dispensing device 300 for cutting the adhesive paper printed in the printing unit and loading on the loading table. The pressure-sensitive adhesive printing paper wound in a roll state is coated with a pressure-sensitive adhesive on the lower surface, and the pressure-sensitive adhesive is not applied for printing on the upper surface. In the present embodiment, the printing unit is composed of four, but is not limited to this, the number of printing units can be increased or decreased according to the purpose of printing.

Figure 2 is a schematic diagram of the paper feeder of the offset printing machine for rotatable pressure-sensitive adhesive paper according to an embodiment of the present invention, Figure 3 shows the installation state of the scraper of the offset printing machine for rotatable adhesive paper according to an embodiment of the present invention. 4 is a perspective view of a roller installed in an offset printing machine for a rotatable adhesive paper according to an embodiment of the present invention.

The problem with printing adhesive paper with a conventional rotary offset printing machine is that it is difficult to control the tension of the printing paper by the adhesive applied to the lower surface, and that the printing paper was attached to the printing surface when it was unwound in a roll. The residue of the adhesive remains to contaminate the blank cylinder of the printing unit, and the adhesive applied to the lower surface adheres to the impression cylinder, making it difficult to align the register. This is because the surface of the roller is usually hard chromium plated, or by using a heat treated stainless roller, the adhesive force with the pressure-sensitive adhesive cannot be lowered.

In order to solve this problem, as shown in FIG. 4, the surface of all rollers of the paper feeder is thermally coated with a metal material to reduce the adhesion with the pressure-sensitive adhesive. In addition, since the surface of the impression cylinder of the printing unit also comes into contact with the pressure-sensitive adhesive of the adhesive printing paper, it is thermally coated with a metal material to reduce the adhesive force. Spray coating is preferably performed by using a plasma spray, and the metal material to be coated is preferably a powder mixed with tungsten and cobalt, but is not limited thereto. The size of the sprayed powder is preferably in the range of 200 to 400 mesh, since the adhesive force between the pressure-sensitive adhesive and the roller surface can reduce the influence on the tension applied to the printing paper. In particular, as shown in Fig. 2, the rollers 111 to 125 of the feeder preferably use powder in the range of 200 to 300 mesh, and the impression cylinder 220 is finer to 300 to precisely print. Preference is given to using powders in the 400 mesh range.

In FIG. 2, reference numeral 110 denotes a cylinder for measuring tension on printing paper, reference numeral 130 denotes an infeed roller of a paper feeder, reference numeral 101 denotes a wound adhesive paper, and reference numeral 120 denotes a paper. Axis to support

3 shows the scraping means 150 for removing the adhesive remaining on the upper surface of the printing paper when the adhesive paper is released in the wound state, when the adhesive is applied on the upper surface to be printed. have. The scraping means 150 has a structure in which the contact surface is scratched when the adhesive paper is supplied to the printing unit by contacting the surface of the adhesive paper to which the pressure-sensitive adhesive is not attached. That is, the scraping means may include a scraping bar 152 having a blade whose length is longer than the width of the printing paper, and at least one shaft of a plurality of rollers provided at both ends of the scraping bar 152 in the paper feeder. It consists of a pair of brackets 151 for fixing to the rotating means 153 which can rotate the shaft of the roller provided with the fixed bracket 151 to adjust the contact pressure between the scraping bar and the printing paper. .

Although not shown, the pivot means 153 is connected to the shaft of the roller 114 to which the bracket is fixed so that the shaft of the roller 114 connected to the worm gear rotates when the pivot means 153 is rotated. Consists of. In addition to this configuration, it will be apparent to those skilled in the art to devise a mechanism for rotating the shaft of the roller 114. By rotating the scratching bar 152 to change the friction between the scraping bar 152 and the upper surface of the printing paper it is possible to appropriately control the amount of the adhesive attached to the upper surface of the printing paper. Reference numeral 154 denotes a bolt for fixing the bracket.

Fig. 5 is an exploded perspective view showing the structure of the edge position adjusting device of the offset printing machine for rotatable adhesive paper according to one embodiment of the present invention.

The edge position adjusting device 160 includes a sensor 181 for detecting an edge position, a controller 180 for receiving a signal of the sensor and outputting a control signal for adjusting the edge position, and a control signal of the controller. Accordingly, the first roller for guiding the printing paper by contacting the unattached surface of the printing paper and the second roller installed horizontally with respect to the first roller are rotated at an angle horizontally with respect to the center of the length of the first roller. It consists of a paper rotating means 160 that can be made.

As shown in Fig. 5, the paper rotating means 160 includes a roller support 169 for rotatably supporting the two horizontally installed rollers, and an upstream side of the paper feed supported by the roller support. One means for rotating the roller support at an angle about the axis of the roller (120).

In this embodiment, as a means for rotating the roller support according to the control signal of the controller, one end is fixed to the lower portion of the support shaft of the second roller 121 of the roller support and the cylinder is fixed to the base plate 161 ( 165, a pin 167 fixed to the base plate 161 and coupled to an inner ring of the bearing 168 to rotatably support the central lower portion of the first roller shaft of the roller support, and the second roller 121. Consists of a pair of ball guides fixed to the rotation and linear movement at the bottom of the. Reference numeral 182 denotes a valve for controlling the hydraulic cylinder. The outer ring of the bearing 168 is coupled to the hole 170a formed at the lower portion of the roller support 169.

The ball guide has a pair of guide rods 163 rotatably fixed so as to be symmetrical to the base plate 161, and each of the guide rods 163 has a hole fitted to allow linear movement and is perpendicular to the guide rods. It consists of a pair of guide member 164 having a pin protruding into the. The inside of the guide member contains a ball so that the orthogonal movement is smooth. The pin of the guide member 164 is rotatably coupled to the inner ring of the bearing installed in the hole 170b formed to be symmetrical in the vicinity of the second roller of the roller support.

Therefore, the edge position adjusting device 160 is the edge of the printing paper supplied to the printing unit 200 by the controller 180 according to the detection signal of the sensor 180, the cylinder 165 moves forward or backward by the control signal The position of can be adjusted.

6 is a schematic perspective view of a cutting / disposing device of an offset printing machine for a rotatable adhesive paper according to an embodiment of the present invention.

When cutting the printed adhesive paper and supplying the cut adhesive paper to the mounting table using a conventional placement device, there is a problem in that the adhesive is applied to the bottom surface of the printing paper so that the paper sticks to the bottom and is not aligned and stacked accurately. In addition, even when conveying the paper cut by the feeding roller, there is a disadvantage that the conveyance is not good because of the adhesive.

In order to solve this problem, the present invention uses a teflon bottom 360 between the cutting roller 310 and the feeding roller 320 for discharging the adhesive paper cut by the cutting roller, as shown in FIG. 6. Coated. In addition, the air supply nozzle for controlling the fall of the paper by supplying air to the lower portion of the cutting paper so that the cut adhesive paper discharged by the feeding roller 320 can be accurately stacked on the mounting table 370 ( A plurality of 350) were installed. The air supply nozzle 350 forms a groove having a constant depth in a circumferential direction on a portion of the coated surface of the feeding roller 320 so as not to interfere with the transfer of printing paper, and is installed inside the groove.

In addition, in order to remove the static electricity generated on both sides of the cut printing paper, the first static electricity removing device to remove the static electricity generated on the adhesive surface of the adhesive paper between the cutting roller 310 and the feeding roller 320 330 is installed, and a second static electricity removing device 340 is installed on the upper side of the mounting table 370 to remove the static electricity on the opposite side to which the adhesive of the adhesive paper is attached.

Therefore, the cut adhesive printing paper is precisely supplied to and stacked on the mounting table 370 even when the adhesive is applied to the lower surface by air supplied from the air nozzle in a state where static electricity is completely removed.

According to the present invention, it is possible to directly print without attaching a separate paper such as thin list lip on the adhesive paper, and it is possible to manufacture color-printed adhesive memo paper of small quantity production of various kinds at economical cost.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

Claims (11)

A paper feeding device for supplying the wound adhesive paper, a plurality of printing units for printing on the adhesive paper supplied from the paper feeding device, and a cutting / dispensing device for cutting and discharging the adhesive paper printed through the plurality of printing units. In the rotatable offset printing machine comprising: Metallic material is thermally coated on the surface of the plurality of rollers for guiding the paper supplied to the printing unit installed in the paper feeding device. A rotary offset printing machine, characterized in that the metal material is thermally coated on the surface of the impression cylinder installed in the printing apparatus. The method of claim 1, And wherein the paper feeder is provided with a scraping means for scraping the contact surface when the adhesive paper is supplied to the printing unit by contacting the surface of the adhesive paper to which the pressure-sensitive adhesive is not attached. The method of claim 2, The scraping means includes a scraping bar having a blade whose length is longer than the width of the printing paper, and a bracket for fixing both ends of the scraping bar to at least one of the shafts of the plurality of rollers installed in the paper feeder. Rotatable offset press. The method of claim 3, And a rotating means for rotating the shaft of the roller provided with the fixing bracket of the scraping means to adjust the contact pressure between the scraping bar and the printing paper. The method according to any one of claims 1 to 4, The paper feeding device further includes an edge position adjusting device for printing paper, The edge position adjusting device includes a sensor for detecting an edge position, a controller for receiving a signal of the sensor and outputting a control signal for adjusting the edge position, and adhesive of printing paper according to the control signal of the controller. It includes a first roller for guiding the printing paper in contact with the non-surface and a paper rotating means for rotating the second roller horizontally installed with respect to the first roller by a predetermined angle horizontally with respect to the center of the length of the first roller. Rotatable offset printing machine characterized in that. The method according to any one of claims 1 to 4, Rotational offset, characterized in that the particle size of the metal material sprayed on the surface of the plurality of rollers is in the range of 200 to 300 mesh, the particle size of the metal material coated on the impression cylinder is in the range of 300 to 500 mesh printer. The method of claim 5, The metal material thermally coated on the plurality of rollers and the impression cylinder is tungsten, Rotational offset, characterized in that the particle size of the metal material sprayed on the surface of the plurality of rollers is in the range of 200 to 300 mesh, the particle size of the metal material coated on the impression cylinder is in the range of 300 to 500 mesh printer. The method according to any one of claims 1 to 4, The cutting / disposing device includes a cutting roller for cutting the printed adhesive paper to a suitable length, a feeding roller for discharging the adhesive paper cut by the cutting roller, and a cut adhesive paper discharged by the feeding roller. A loading table for loading, and an air supply nozzle for supplying air to a lower portion of the cutting paper loaded on the loading table to control the drop of the paper; Rotational offset printing machine, characterized in that the metal material is coated on the surface of the feeding roller. The method of claim 7, wherein The cutting / disposing device includes a cutting roller for cutting the printed adhesive paper to a suitable length, a feeding roller for discharging the adhesive paper cut by the cutting roller, and a cut adhesive paper discharged by the feeding roller. A loading table for loading, and an air supply nozzle for supplying air to a lower portion of the cutting paper loaded on the loading table to control the drop of the paper; Rotational offset printing machine, characterized in that the metal material is coated on the surface of the feeding roller. The method of claim 8, A portion of the coated surface of the feeding roller is formed with a groove having a constant depth in the circumferential direction, And the air supply nozzle is installed inside the groove so that the paper on the feeding roller does not protrude to the upper side of the passing surface. The method of claim 10, A first static electricity removing device installed between the cutting roller and the feeding roller of the cutting / disposing device to remove the static electricity of the surface of the adhesive with adhesive, and the adhesive of the adhesive with the adhesive And a second static electricity removing device installed to remove static electricity from the cotton.