KR100938607B1

KR100938607B1 - Tension apparatus for printing machine

Info

Publication number: KR100938607B1
Application number: KR1020080035619A
Authority: KR
Inventors: 송병준
Original assignee: 송병준
Priority date: 2008-04-17
Filing date: 2008-04-17
Publication date: 2010-01-22
Also published as: KR20090110039A

Abstract

The present invention relates to a foil tension maintaining and conveying apparatus of a printing apparatus, and in particular, a vacuum pressure is applied only to a part of a shaft through which a foil passes, and an outer surface to which the foil contacts is rotated and maintained. Relates to a device. The foil tension maintaining and conveying apparatus of the printing apparatus according to the present invention includes a cylindrical main body having a plurality of holes formed on an outer surface thereof, a sun roller installed around the center of the main body and formed smaller than an inner diameter of the main body, and the sun roller. And a plurality of pinion rollers installed to be in close contact with each other between the inner surface of the main body and the pump so that the vacuum pressure is supplied only to a space formed by the main body, the sun roller, and the two pinion rollers. Includes connected bearing plugs.

Printing device, tension, shaft, impression

Description

Foil tension and conveying device of printing apparatus {Tension apparatus for printing machine}

The present invention relates to a foil tension maintaining and conveying apparatus of a printing apparatus, and in particular, a vacuum pressure is applied only to a part of a shaft through which a foil passes, and an outer surface to which the foil contacts is rotated and maintained. Relates to a device.

There are many types of gold foil printing devices, but rotary stamping or rotary die cutting refers to a method of printing or die cutting a roller or a die cutting material while the roller is wound. This method is configured to print or die cut through the other stamping mechanism or cutting mechanism thereon while passing the paper or the like, which is the object of printing, between the rollers.

Since a conventional printing apparatus is well known, the description thereof is not made separately. However, since the present invention is an invention which can be used very conveniently and accurately for printing foils such as gold foil on a printing object, it refers to a gold foil printing apparatus.

Such a gold foil printing apparatus requires a continuous transfer of processing materials for printing on paper, for example, a stamping foil, and uses a method of supplying processing materials intermittently to save processing materials. .

One conventional example is shown in FIG. 1. As shown, the workpiece F wound around the storage reel 210 is wound around the shaft 212 as the feed rollers 240 and 250 connected to the feed motor are wound around the winding reel 213. The workpiece F passing through the shaft 211 passes between the impression roller 230 having the die 231 and the lower roller 220 corresponding thereto. Here, the processing material F rotates intermittently because the feed motor is operated so that the feed rollers 240 and 250 rotate only when the die 231 attached to the impression roller 230 contacts the lower roller 220. shall. This is because the work material F is wasted when the feed motor rotates continuously. In this way, expensive processed materials such as gold leaf can be saved.

Conventional gold foil printing apparatus does not have much problem in low speed operation, but in case of printing at high speed, feed motor should be intermittent and correspond at high speed, but it is unfavorable due to the weight or inertia of feed roller. And damage to the processing material. That is, in theory, the processing material is to be transported slightly longer than the arc length L, but at high speed, there is a problem in the correspondence.

In addition, in the conventional gold foil printing apparatus, as illustrated in FIG. 1, the processing material F wound on the storage reel 210 is wound around the shaft 212 as the feed rollers 240 and 250 connected to the feed motor rotate. The workpiece F is wound around 213 and the workpiece F passing through the shaft 211 passes between the impression roller 230 having the die 231 and the lower roller 220 corresponding thereto. In this case, the processing material F has a length of L because the feed motor operates to rotate only when the die 231 attached to the impression roller 230 contacts the lower roller 220. Should rotate intermittently. This is because the work material F is wasted when the feed motor rotates continuously. In this way, expensive processed materials such as gold leaf can be saved. In the prior art, the rotation of the rollers and dies causes the work material wound on the reel to be unwound and wound, although not indicated, mechanisms for maintaining the tension applied to the work material should generally be installed. This typically provides a shaft that provides a vacuum pressure to control the tension of the foil as the workpiece. However, these shafts have a problem that the foil is damaged or prevents the smooth movement of the foil due to the tension applied to the foil because it is difficult to precisely adjust the tension.

The present invention has been made to solve the problems of the prior art described above, it is possible to easily adjust the tension applied to the foil is configured so that the surface can also be rotated while the vacuum pressure is provided only on a portion of the shaft arc. It is an object of the present invention to provide a foil tension maintaining and conveying apparatus of a printing apparatus.

The foil tension maintaining and conveying apparatus of the printing apparatus according to the present invention includes a cylindrical main body having a plurality of holes formed on an outer surface thereof, a sun roller installed around the center of the main body and formed smaller than an inner diameter of the main body, and the sun roller. And a plurality of pinion rollers installed to be in close contact with each other between the inner surface of the main body and the pump so that the vacuum pressure is supplied only to a space formed by the main body, the sun roller, and the two pinion rollers. It characterized in that it comprises a connected bearing plug.

Here, the pinion roller is characterized in that three is installed at an angle of 120 degrees.

The shaft body is made of metal and the rollers are made of rubber.

Foil tension holding and conveying device of the printing apparatus according to the present invention can easily adjust the tension applied to the foil to prevent damage to the foil as well as to provide an effect that can be well adapted to high-speed printing process.

2, there is shown a schematic configuration diagram of a printing apparatus to which the present invention is applied. As shown, the foil F wound around the storage reel 10 is released as the storage reel 10 rotates, and the unwinded foil F is directed toward the blower 30 according to the guide of the tension adjustment shaft 20. Move. The foil F, which has passed through the encouragement adjustment shaft 20, is blown by the blower 30 in a predetermined length by the compressed air. The foil F passing through the blower 30 passes through the suction shaft 40 and then passes through the normal shaft 50 to the printing portion indicated by the dotted line. In the printing unit, the die 111 of the impression roller 110 prints while the impression roller 110 and the lower roller 120 are engaged with each other, and the feed rollers 130 and 140 at the rear thereof are synchronized with the impression roller 110. While rotating, the die 131 of the feed roller 130 has a slightly larger arc than the die 111 of the impression roller 110 and does not print, but merely moves the foil F. FIG. Therefore, the foil F moves only when foil printing is performed.

The foil F past the printing part reaches the tension adjusting shaft 70 through the general shaft 60, passes through the blower 80, and then passes through the tension adjusting shaft 90 to be wound on the winding reel 100.

And the foil (F) blown by the blowers (30, 80) detects the blowing distance to control the motor to rotate the winding reel 100 and the storage reel (10). In other words, when the foil (F) is blown from the A to B when the printing is in progress, the motor of the storage reel (10) operates to release the foil (F) to fly to A, the foil (F) blown by the blower (80) ) Reaches C, the winding reel 100 is wound up to D.

The position of the impression roller 110 and the feed roller 130 of the printing unit may be changed back and forth.

Foil tension and conveying device is used to adjust the tension of the unwinding and winding foil (F).

The foil tension holding and conveying apparatus is provided with a cylindrical shaft body 91 having a plurality of holes 91a formed on an outer surface thereof, as shown in FIGS. 3 to 5, and centered on the center of the shaft body 91. A sun roller 92 formed smaller than the inner diameter of the main body 91, a plurality of pinion rollers 93 provided to be in close contact with each other between the sun roller 92 and an inner surface of the main body 91, and the main body 91 And a bearing stopper 94 connected to the pump so that the vacuum pressure is supplied only to the space formed by the main body 91, the sun roller 92, and the two pinion rollers 93. .

Referring to FIG. 3, air holes 91a are regularly formed radially in the cylindrical shaft main body 91, and rollers 92 and 93 having the same diameter are installed inside the main body 91. have. The sun roller 92 is provided in the center, and the other pinion roller 93 is provided so that one may contact the sun roller 92 and the other may contact the inner surface of the main body 91. As shown in FIG. Here, the pinion roller 93 is provided for every 120 degree angle. Therefore, referring to FIG. 4, the inner space of the main body 91 is divided into three spaces by the main body 91 and the rollers 92 and 93. In particular, the vacuum pressure is provided only in the special space S. FIG. This can be seen with reference to FIG. 5. The vacuum pump and the space S are connected through the vacuum hose 95 so that the vacuum pressure is supplied only to the special space S to the bearing plug 94 supporting the main body 91 and the rollers 92 and 93. In this case, the vacuum pressure is supplied only to the special space S so that the foil F only sticks to the outer surface of the main body 91 corresponding to the portion.

In particular, referring to FIG. 4, when the main body 91 rotates counterclockwise, the pinion roller 93 also rotates counterclockwise with it, and only the sun roller 92 rotates clockwise. As the shaft main body 91 rotates, conveyance by tension and rotation of the foil F stuck thereon is performed.

That is, in the case of the shaft of reference numeral 90, the main body 91 is rotated counterclockwise so that the foil F between the winding reels 100 is kept taut, and in the case of the shaft of reference numeral 70 in the clockwise direction. Rotates to maintain tension with the printing portion. The shaft 20 is also rotated clockwise to adjust the tension between the storage reel 10.

On the other hand, Figure 6 shows a cross-sectional view of the shaft according to another embodiment. The shaft 190 is the main body 191 and the sun roller 192 is the same as the previous embodiment, the difference is that the pinion roller 193 is arranged in four by arranging every 90 degrees. Therefore, the portion where the foil F is adsorbed becomes small.

1 is a schematic configuration diagram of a printing apparatus according to the prior art,

2 is a schematic configuration diagram of a printing apparatus according to the present invention;

3 is a perspective view of a shaft which is a component of the foil tension maintaining and conveying apparatus of the printing apparatus according to the present invention;

4 is a cross-sectional view of the shaft shown in FIG.

5 is a longitudinal sectional view of the foil tension maintaining and conveying apparatus of the printing apparatus according to the present invention;

6 is a cross-sectional view of a shaft according to another embodiment of the foil tension maintaining and conveying apparatus of the printing apparatus according to the present invention.

Claims

A cylindrical body having a plurality of holes formed on its outer surface, a sun roller formed around the center of the main body and formed to be smaller than an inner diameter of the main body, and a plurality of pinions installed to closely contact each other between the sun roller and the inner surface of the main body. A roller and a bearing stopper connected to the pump so that the vacuum pressure is supplied only to the space formed by the main body, the sun roller, and the two pinion rollers, and the pinion roller has a 120 degree angle. Foil tension maintaining and conveying device of the printing apparatus, characterized in that three installed.

delete

The method of claim 1,

And the shaft body is made of metal and the rollers are made of rubber.