KR200276689Y1 - Embossing roller and apparatus for making the same - Google Patents

Abstract

Nickel plated tube in which the embossed pattern is directly exposed to the outside, a thermally conductive tube inserted at a predetermined distance from the nickel plated tube inside the nickel plated tube and having a plurality of perforations, and a nickel plated tube at the end of the nickel plated tube Silver ring in use and improved in durability and thermal conductivity, including a thermally conductive ring for sealing a space between the thermally conductive tube and the thermally conductive tube, and a fastening portion penetrated through the nickel-plated tube, the thermally conductive ring and the thermally conductive tube. Disclosed are an embossed roller, a manufacturing method thereof, and a manufacturing apparatus of such an embossed roller, which can reduce deformation of an embossed pattern due to film peeling.

Description

Embossing roller and apparatus for making the same

The present invention relates to an embossing roller, a method for manufacturing the same and an apparatus for manufacturing the embossing roller, and in particular, the thermal conductivity, pressure resistance and durability is improved, and the embossing roller and the manufacturing method thereof capable of preventing deformation of the embossed pattern by the silver film A manufacturing apparatus for manufacturing such an embossed roller.

Embossing patterns are used for decorative purposes such as synthetic resin sheets, vinyl paper, wallpaper, cards, artificial leather products, and the like, in order to mass-produce the embossed sheet, an embossing roller is required.

In order to form an embossed pattern on the fabric of PVC and PU used for a bag, a handbag, a part of clothes, or a shoe, the fabric is heated by a heater and passes between an embossing roller and a rotating backup roll, wherein the embossing roller is also rotated. Then, pressure is applied to the shaft of the embossed roller by the movement of the pistons at both ends of the embossed roller. Meanwhile, in order to prevent the fabric from sticking to the embossed roller, the fabric heated to the embossed roller keeps coming into contact with the surface of the embossed roller.Empty the embossed roller is made by emptying the inside of the embossed roller and continuously passing a coolant or a cooling medium therein. Must be cooled. At this time, the temperature of the embossed roller should be maintained at about 80 to 120 ℃ (hereinafter referred to as the middle temperature) and the pressure of the piston is about 2kg / ㎠ or less (hereinafter referred to as low pressure).

And, in wet synthetic leather such as artificial leather and suede, the heating of the embossed roller by heating the heat medium through the inside of the embossed roller without heating the fabric, and the disk of the piston while passing between the heated roller and the backup roll The pressure forms an embossed pattern on the fabric. The embossed roller heated by the heat medium should be maintained at about 180 to 220 ° C. (hereinafter referred to as high temperature) and the piston pressure will be about 4 to 7 kg / cm 2 (hereinafter referred to as high pressure).

In addition, when forming the embossed pattern on the wallpaper, only 4 to 7 kg / cm 2 pressure of the piston is required without cooling water or heat medium flowing into the embossing roller.

Therefore, embossing rollers with good thermal conductivity are required to form embossed patterns on dry artificial leathers such as PVC and PU, and wet synthetic leathers such as artificial taxes and suede, and embossing resistant to high pressure in order to form embossed patterns on wallpaper. You need a roller.

In order to manufacture such an embossed roller, a synthetic resin transfer plate having a concave-convex pattern transferred from a sample disc such as fabric, artificial leather, or embossed material is manufactured, and a synthetic plate transfer tube is rolled up to produce a cylindrical plating tube, and the inner surface of the tube for plating A heat conductive tube (commonly referred to as a nickel tube, hereinafter referred to as a nickel tube) is formed to form an outer shell of the embossed roller that is thermally conductive by silver mirror treatment and plating treatment, and the inside of the nickel tube is filled. do.

Generally, the shaft member is inserted inside the nickel tube, and the space between the shaft member and the nickel tube is filled with a ceracic resin that is cured at room temperature. After the filling is completed, the plating tube, that is, the plating tube made of a synthetic resin in contact with the silver hardened film is removed to complete the embossing roller. Meanwhile, the plating tube removing process may be performed after the plating process and before the filling process inside the nickel tube.

Various embossed rollers manufactured according to the prior art completed through the above-described process are shown in FIGS. 1A and 1B, and a plating apparatus used to manufacture an embossed roller according to the prior art is illustrated in FIG. 2.

The embossing roller 110 shown in FIG. 1A is disclosed in Korean Patent Registration No. 279327 (Application No. 1999-5590), and a nickel tube 101 and a jig 105 in which a silver-hardened embossing surface is exposed to the outside. Filler 102 formed by mixing a ceramic adhesive, a water reducing agent, a fluidizing agent, and a retarder between the iron core 103 and the nickel tube 101 and the iron core 103 which are accurately and easily inserted into the nickel tube 101 by using a. )

The nickel tube 101 is formed using the plating apparatus 160 shown in FIG. 2 after the silver diameter treatment is performed on the inner surface of the plating tube (not shown). Specifically, the plating solution is put in two tanks 161 and 162, and the two tanks 161 and 162 are connected to the reflux tube 163 so that the liquid level of the two tanks 161 and 162 is kept the same. In the plating tank 161, a silver-plated plating tube 210 is vertically contained, and a titanium basket 167 containing nickel is inserted into the plating tube 210. In addition, a cylindrical injection tube 166 is inserted into the titanium basket 167 containing nickel, so that the plating liquid of the supply tank 162 supplied through the pump 164 and the supply tube 165 is transferred to the plating tank 161. Inflow). Then, the plating liquid in the plating tank 161 is introduced back into the supply tank 162 by the reflux tube 163, so that the plating liquid is circulated between the two tanks 161 and 162 without being fixedly contained in a specific container. have. Accordingly, the conditions for nickel plating, for example, the temperature of the plating liquid, the pH of the plating liquid, etc. are kept constant, thereby forming a high quality nickel plating tube without performing the resetting operation of the plating conditions.

However, since the plating tube 210 is vertically contained in the plating tank 161 shown in FIG. 2, the height of the plating tank 161 is more than 2 meters. Therefore, the operation of inserting the silver-treated tube 210 into the plating tank 161, the insertion installation of the titanium basket 167 and the injection tube 166, the connection work of the power supply 168 is inconvenient and dangerous problem There is.

In addition, although the shrinkage or deformation problems are somewhat reduced compared to the ceramic only fillers in which the filler 102 is generally used, the filler 102 still contains ceramic. Therefore, the ceramic tends to dry out due to heat, and the ceramic powder tends to leak out, resulting in a low pressure resistance and durability, and a low thermal conductivity due to pores between the ceramics. Therefore, dry artificial leather or artificial leather, which is operated under high or medium temperatures, There is still a problem that is not suitable for applying to high-pressure embossing rollers used for wet artificial leather embossing rollers such as suede and wallpaper.

Accordingly, a technology of using a metal filler in place of the ceramic filler 102 of FIG. 1A by melting an alloy mixed with lead and tin of about 6: 4 without using ceramic as a filler is disclosed in Korean Patent Application Publication 2001-16311 (Published March 5, 2001). Compared to ceramics, the above-described metal fillers improve the durability of the embossed rollers, so they are suitable for high-pressure working conditions and have high thermal conductivity, so that they do not crack in high temperature conditions. However, since the high temperature process is required to melt the metal charge, the filling process is dangerous and the operation becomes inefficient. In addition, the hot metal melt comes into direct contact with the nickel tube and the iron core, causing deformation of the nickel tube and the iron core. Therefore, the surface pattern of the embossed roller is distorted, so that the desired pattern does not appear on the wallpaper or vinyl paper.

On the other hand, the filling method between the iron core and the nickel-plated tube without using a filler containing a ceramic is disclosed in the Republic of Korea Utility Model Registration No. 228349 (Utility Model Application No. 2001-3034), the utility model registration No. 228349 described above The disclosed embossing roller is shown in FIG. 1B. The embossing roller 120 is welded to both ends of the inner surface of the nickel tube 121 and the nickel tube 121 in which the silver-hardened embossing surface 121a is exposed to the outside and the protrusion 121b is formed inside thereof. It consists of a shaft (122). Therefore, the heat transfer area of the embossing roller is increased by the protrusion 121b, thereby increasing the cooling and heating speed of the embossing roller, and since the steel shaft is used instead of the ceramic filler, the deformation of the roller does not occur even at high temperature or high pressure. There is this.

However, since the shaft 122 is only connected to the end of the nickel tube 121, when a high pressure is applied to the embossed roller 120, the central portion of the roller 120 is relatively weak to external forces. In addition, even at high temperatures, a thermal deviation occurs due to a difference between the thermal conductivity of the steel shaft 122 and the thermal conductivity of air (air in the space between the protrusions 121b). If the relative fragility and thermal deviation to the external pressure is accumulated, the embossed roller 120 is deformed in the end, thereby deteriorating durability.

Meanwhile, the embossing rollers disclosed in the aforementioned Korean Patent Registration No. 279327, Korean Patent Application Publication 2001-16311, and Korean Utility Model Registration 228349 include a silver-cured membrane, which is a silver liquid nozzle and a reducing agent sprayed with silver liquid. Is placed at the end of the plating tube or inserted into the plating tube end, and then sprayed with the liquid solution and the reducing agent (min. An uncured silver film forming method). However, the silver film formed on any part of the tube for plating has a weak adhesive force, so that the surface of the embossed roller may be stained or the embossed pattern may be peeled or powdered when the embossed pattern is formed on a product such as paper or vinyl paper by the roller. It may not be implemented properly and the product may be stained. Accordingly, fabric manufacturers are taking measures such as applying matte or matte finishes on fabrics.

Accordingly, an object of the present invention is to provide an embossed roller capable of improving thermal conductivity.

Another object of the present invention is to provide an embossed roller suitable for high pressure working conditions or improved durability.

Another object of the present invention is to provide an embossed roller that can prevent deformation of the embossed pattern by the silver dura film.

Another object of the present invention is to provide an embossed roller that does not cause deformation according to the working conditions.

Still another object of the present invention is to provide an embossing roller manufacturing apparatus capable of improving work efficiency and securing worker stability.

1A and 1B are cross-sectional views of embossed rollers according to the prior art.

Figure 2 is a view showing an electroplating apparatus used in the manufacture of the embossed roller according to the prior art.

3A and 3B are cross-sectional views of embossing rollers according to the present invention.

4A to 4C are views illustrating a manufacturing process of a plating tube for manufacturing an embossed roller according to one example and another example of the present invention.

5A and 5B show cross-sectional views of the plating tube subjected to the pretreatment process and the silver diameter pretreatment process for the silver diameter treatment of the plating tube, respectively.

6A and 6B show cross-sectional views of a silver hardening process and a silver hardened plating tube, respectively.

7A and 7B show a cross section of an apparatus for electroplating a silver hardened plating tube and an electroplated plating tube, respectively.

8A to 8C are views illustrating a process of forming an embossed roller for high temperature or high pressure by inserting an iron pipe into a nickel plated pipe, and FIG. 8D is a view showing a cross section of an embossed roller having an iron pipe inserted therein. to be.

9A to 9C are views illustrating a process of forming an embossed roller for medium temperature or low pressure by filling an inside of a nickel plated tube, and FIG. 9D is a view illustrating a cross section of an embossed roller filled with an inside.

An embossing roller for achieving the objects of the present invention, has a plating tube in which the embossed pattern is directly exposed to the outside, a thermally conductive tube inserted at a predetermined distance from the plating tube inside the plating tube. The direct exposure of the embossed pattern to the outside means that there is no silver film on the embossed pattern. Here, the thermally conductive tube may have a plurality of perforations, in which case an embossed roller, at the end of the plated tube, a thermally conductive ring for sealing the space between the plated tube and the thermally conductive tube, and the plated tube, the thermally conductive ring And a fastening part penetrating the heat conductive pipe and fastened thereto.

As another example of a thermally conductive tube, a plurality of protrusions may be formed on the outer surface of the thermally conductive tube, in which case the embossing roller further comprises a cured defoaming resin layer filled between the plated tube and the thermally conductive tube. Can be. The cured defoaming resin layer may further include metal powder, and urethane may be used as the cured defoaming resin layer.

In order to manufacture such an embossed roller, the silicon plate to which the embossed pattern original plate was transferred is prepared. Roll up the silicon plate to form a plating tube with an embossed transfer pattern on the inner surface, and to impart conductivity to the silicon tube, sensitize the inside of the tube, and immerse the tube in a silver hardened solution. A silver film of uniform thickness is formed on the inner surface. A nickel plating layer is formed on the silver hard film of uniform thickness. Thereafter, a steel pipe having a plurality of holes perforated is inserted into the space between the nickel plating layers, and an iron ring is inserted between the nickel plating layer and the steel pipe at the end of the nickel plating layer to seal the space, and a fastening means such as a bolt is provided. Nickel plated layer, steel ring and steel pipe.

On the other hand, as another method for forming the embossed roller, after forming a silver film having a uniform thickness on the inner surface of the tube and forming a nickel plating layer, an iron tube is inserted into the internal space between the nickel plating layers, and the nickel plating layer and the iron are formed. The defoamed resin can be filled and cured between the tubes. Here, the silver film is prepared by opening and closing the fixed tube, the plating tube is inserted into the fixing tube to be in close contact with each other, and the end of the combination of the fixing tube and the plating tube is sealed, and then the silver diameter treatment on the inner surface of the plating tube. It is formed by the process of supplying a liquid and rolling the coalescence.

The plating treatment apparatus for manufacturing an embossed roller suitable for the purpose of the present invention includes a plating tank containing a plating solution for plating, and the plating tank extends to a first length in the vertical direction from the bottom to form a silver film. Two or more first supports for seating in the horizontal direction, the second length extending from the bottom in the vertical direction, but having a second length longer than the first length, and includes a nickel surrounding the first support and penetrating through the plating tube; At least two second supports for seating the basket in the horizontal direction, both ends in the plating liquid, but the end of the "c" shaped circulation pipe and a circulation pump installed on the path of the circulation pipe. The plating apparatus also includes a temperature sensor and a heating device connected to the plating liquid in the plating tank, a control unit for controlling the temperature sensor and the heating device to maintain the temperature of the plating liquid at a predetermined level, and a power device connected to the silver film and the basket. do.

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

Figure 3a and Figure 3b is a cross-sectional view of the embossed roller according to one example of the present invention and another example, Figure 3a is an example of an embossed roller 200 suitable for use under high temperature or high pressure and Figure 3b is a medium or low pressure One example embossing roller 250 suitable for use is shown. Although the embossed roller shown in FIG. 3A can be used in medium temperature or low pressure conditions, in consideration of problems such as manufacturing cost, it is more preferable to use a roller of 3b in medium temperature or low pressure conditions.

The embossed roller 200 of FIG. 3A is formed of a nickel plated tube 201 in which an embossed pattern is formed and the silver film is removed, and a thermally conductive material, and is inserted at a predetermined interval inside the nickel plated tube 201. It includes a tube 202 having a plurality of holes 203 uniformly arranged over the front surface. In this embodiment, the thermally conductive tube 202 is an iron tube 202 made of iron. The embossed roller 200 also includes a ring 204 made of a thermally conductive material, for example, iron, which is fitted at the end of the nickel plated tube 201, so that the space between the nickel plated tube 201 and the iron tube 202 is provided. Seal it. In addition, the embossed roller 200 drills the nickel plating pipe 201 and the steel ring 204 together, and then fastens them together with the holes 203 of the steel pipe 202 and the bolt 205 to which the nut is welded. It contains more. The outer finishing ring 206 and the rotating shaft 207 are welded to both ends of the steel pipe 202, the steel ring 204, and the nickel plated pipe 201 fastened by the bolt 205.

The nickel plated pipe 201 and the steel pipe 202 are separated from each other by a predetermined distance, and the steel pipe 202 is provided with a plurality of holes 203 throughout the steel pipe. In addition, a path (not shown) of cooling water or a heat medium for cooling the embossed roller is formed inside the rotating shaft 207. Therefore, when the embossing roller 200 is rotated by the rotation of the rotating shaft 207, the heat medium or cooling water flowing into the center of the rotating shaft inside the embossing roller flows into the space 208 through the rotating shaft and is punched out of the steel pipe 202. Since the surface of the nickel-plated tube 201 is quickly reached through the hole 203 without any thermal deviation, the thermal conductivity of the embossed roller is performed. Since the contact area at this time substantially corresponds to the entire surface of the nickel plated tube 201, the nickel plated tube 201 can be quickly cooled or heated without thermal deviation, and thus the nickel plated tube 201 is heated by a high temperature. Warping or deformation can be prevented.

Next, the medium or low pressure embossing roller 250 of FIG. 3B has a nickel plated tube 251 inside the nickel plated tube 251 and the nickel plated tube 251 in which the silver hard film is removed and the embossed pattern is exposed to the outside. It is inserted at a predetermined distance from and is made of a thermally conductive material, and is filled between the tube 253 and the nickel plated tube 251 and the thermal conductive tube 253 having a protrusion (42 in Fig. 9b) on the surface. Cured degassing resin layer 252 is included. In order to increase the thermal conductivity of the degassing resin layer 252, the metal powder (not shown) may be mixed in the degassing resin layer 252. As an example of the thermally conductive tube 252, an iron tube was used, and polyurethane may be used as an example of the cured defoaming resin. In addition, the outer finishing ring 254 and the rotating shaft 255 are welded to both ends of the steel pipe 252, the resin layer 253 and the nickel plating pipe 251. Conventionally, the space between the nickel tube and the thermally conductive shaft member is filled with a ceramic and ceramic composite, but in the present invention, the resin layer 253 is filled with a resin containing a resin or metal powder therebetween. No pores are generated in the pores, and the thermal conductivity is improved as compared with the case where the ceramic powder is filled with the metal powder contained therein. In addition, the adhesive force between the resin layer 253 and the steel pipe 252 is improved by the protrusion (42 in FIG. 9B) of the pipe 253, so that the durability of the embossed roller is also improved.

In addition, the thermal conductivity or durability of the embossed roller suitable for the medium or low pressure condition requires a lower level than that of the embossed roller suitable for the high temperature or the high pressure. By using the thermally conductive tube 253 and the resin layer 252 containing the metal powder shown in FIG. 3B, the thermal conductivity and durability required for the low-temperature embossing roller 250 may be secured. The tube 251 need not be thicker than the nickel plated tube 201 of the high temperature and high pressure embossing roller 200 of FIG. 3A. Accordingly, the nickel plated tube 251 of FIG. 3B is thinner than the nickel plated tube 201 of FIG. 3A.

By using the present invention, it is possible to secure an embossing roller capable of transferring fine patterns while reducing the manufacturing cost of the embossing roller and shortening the manufacturing period, while having thermal conductivity and durability suitable for medium or low pressure conditions.

On the other hand, since the silver film is not present on the upper surface of the nickel plated tube 201 of the high temperature or high pressure embossed roller 200 and the nickel plated tube 251 of the medium temperature low pressure embossed roller 250, the embossed roller becomes black or stained. In the case of losing and the use of the roller, the silver film is not peeled off or powdered, so that the embossed pattern is not damaged.

Now look at the manufacturing method of the embossed roller according to the present invention with reference to Figures 4a-4c, 5a and 5b, 6a and 6b, 7a and 7b, 8a to 8c and 9a to 9c.

Figures 4a to 4c is a process for producing a tube for plating, first pouring an elastic synthetic resin on the original plate (1), the desired pattern is formed (Fig. 4a), after curing the synthetic resin from the original plate (1) When separated, the replica 2 to which the embossed pattern of the original 1 was transferred (FIG. 4B) is obtained. The disc 1 may express a naturally embossed pattern, for example, a tree ring or a pattern embossed by hand. An example of a synthetic resin may be a room temperature-curable liquid silicone rubber (hereinafter referred to as silicone). have. By repeating the above-described method to secure a transfer plate of a desired size, roll the transfer plate to connect both ends to form a silicon plating tube 4 (FIG. 4C). The transferred pattern 3 is formed on the inner surface of the tube 4 for silicon plating.

FIG. 5A illustrates a silver pretreatment process of the plating tube 4, and includes a fixing tube 5 made of titanium and having a fixing part 6 that can be opened and closed. 4) is inserted into the fixing tube (5) and the fixing tube (5) in close contact with the outer surface of the plating tube (4) to fix the fixing portion (6) with a fixing pin (7) (Fig. 5a). A cross section in which the plating tube 4 is tightly inserted into the fixing tube 5 is shown in FIG. 5B, and the reference numeral 10 denotes the silicon plating tube 4 in which the fixing tube 5 of titanium is in close contact. .

After the above process, as shown in Figure 6a, both ends of the silicon plating tube 10 is fixed to the fixing tube 5 is closed with a sealing ring 12 made of plastic. In order to impart conductivity to the silicon of the silicon tube 10, a known commercially available sensitizing solution consisting of stannous chloride and concentrated hydrochloric acid is placed in the space 13 for silver pretreatment, and the sensitizing solution is washed. Then, the silver nitrate in the space 13 was immersed in a known commercially available silver hardened solution consisting of concentrated ammonia, lotel salt, and distilled water, and then immersed in a silver film as shown in FIG. 6B while rotating the silicon tube 10. ). Therefore, a thin and uniform silver film is formed, thereby minimizing the consumption of the silver hardening solution used once. Reference numeral 20 denotes a plating tube in which the silver hard film 19 is formed.

Next, a plating layer is formed on the tube 20 for plating using the plating apparatus 50 shown in FIG. 7A. Plating apparatus 50 is a plating tank 51 made of Fiber glass Reinforced Plastic (FRP) or PP (PolyPropylene) containing a plating solution for plating, the heating device 58 and the temperature sensor connected to the plating liquid in the plating tank 51 (59), a control unit 57 for controlling the heating device 58 and the temperature sensor 59 to maintain the temperature of the plating liquid at a constant level. As the plating liquid, a well-known high temperature sulfonic acid nickel liquid consisting of nickel sulfamate, nickel chloride, boric acid, an anti-pitcher, and a brightening agent is used.

In the plating tank 51, an FRP or PP material extending in the first length in the vertical direction from the bottom surface thereof so that the plating tube 20 is placed in the plating tank 51 in the horizontal direction as shown in FIG. 7A. Two or more first support stands 52a are provided, and the plating tube 20 on which the silver hard film 19 is formed is seated in the horizontal direction. Then, in the plating tank 51, in order to seat the basket 53 containing nickel (not shown) penetrating through the plating tube 20 in the horizontal direction, the vertical direction from the bottom surface of the tank 51 Two or more second supports 52b, made of FRP or PP material, which extend in the second length and have a second length longer than the first length and surround the first support 52a, are provided. In addition, the plating apparatus of FIG. 7A is provided with a circulation pipe 54 having both ends in a plating solution, and a circulation pump 55 provided on the path of the circulation pipe 54 having one end of a "c" shape. The silver hard film 19 and the basket 53 of the plating tube 20 are connected to the power supply 56 via copper wire. On the other hand, the basket 53 is wrapped by a nonwoven fabric (not shown) to filter out impurities that may come out while the nickel in the basket 53 is dissolved during the plating process.

In the conventional plating apparatus shown in FIG. 2, since the plating tube 210 and the basket 166 are disposed in the vertical direction to the plating tank 161 for plating, the height of the plating tank 161 is required to be about 2 m or more. It was. However, in the plating apparatus according to the present invention, as shown in FIG. 7A, the plating tube 20 is disposed in the plating tank 161 in the horizontal direction, so that the height of the plating tank 51 may be about 60 centimeters. Therefore, the installation of the device for the plating process is facilitated to obtain the convenience and efficiency of the plating process.

When nickel plating is performed by turning on the power supply device 560, the heating device 58, and the temperature sensor 59, a low current is initially applied to the silver film 19 so as to be plated with a uniform thickness. When it is 50 microns or more, the portion flows a higher current to form a nickel plated layer at high speed. FIG. 7B is a cross-sectional view of the plating tube 25 in a state where plating is completed using the plating apparatus 50, and a nickel plating layer 21 having a uniform thickness is formed on the silver hard film 19 having a uniform thickness. It can be seen.

The thickness of the nickel plating layer 21 formed by nickel electroplating may be adjusted according to the environment in which the embossing roller is used. That is, the thickness of the nickel plating layer of the medium temperature or low pressure embossing roller for forming the embossed pattern on the fabric such as dry artificial leather is relatively thin, and the nickel metal layer of the high temperature or high pressure embossing roller such as wallpaper or wet artificial leather The thickness is formed relatively thick. For example, the high-temperature high-pressure nickel plated layer has a thickness of about 7 mm or more, and the medium-temperature low-pressure nickel plated layer has a thickness of about 1 to 2 mm. The thinner the plating layer, the lower the amount of plating solution used and the shorter the plating time, ultimately lowering the price of the embossed roller.

First, in order to manufacture an embossed roller for high temperature and high pressure, the cover tube 5 and the silicon tube 4 made of titanium are removed from the plating tube 25 illustrated in FIG. 7B. Next, the silver hard film 19 is removed using a commercially available silver peeling solution. If the silver hard film 19 is not firmly attached to the nickel plated layer 21 or if it is attached, it may be peeled or powdered when using the embossed roller. Therefore, it is most preferable to completely remove the silver film 19. In order to remove the silver film remaining on the nickel plating layer 21 and to give gloss, a buff (not shown) made of a soft cloth is rotated, and the nickel plating layer 21 from which the silver film is removed is rotated.

Next, as shown in FIG. 8A, the steel pipe 28 in which the plurality of holes 27 are perforated in the nickel plated pipe 21 made of the nickel plated layer with the silver hard film 19 removed and polished is provided. Insert As shown in FIG. 8B, the steel pipe 28 is spaced apart from the nickel plated pipe 21 by a predetermined distance, and the steel ring 29 is manufactured according to the diameter difference between the steel pipe 28 and the nickel plated pipe 21. ) Is inserted at both ends of the nickel plated tube 21. Then, as shown in Figure 8c, the nickel-plated tube 21, the perforated steel pipe 28 and the steel ring 29 is drilled together to fasten with the bolt 30 and weld the nut portion. FIG. 8D is a cross-sectional view taken along line II of FIG. 8C and shows four bolts 30 arranged. Subsequently, the external finishing ring (206 in FIG. 3A) and the rotating shaft (207 in FIG. 3A) are welded to complete the embossed roller.

On the other hand, in order to produce a medium-temperature low-pressure embossing roller using a plating tube 25 having a relatively small nickel plating layer is formed, the steel pipe 41 is not perforated as shown in Figure 9a Insert into the inside of the tube (25). Remove the titanium cover tube 5 and the silicon tube 4 from the plating tube 25 before inserting the steel pipe 41 and remove the silver hard film 19 using a commercially available silver release solution. do. The steel pipe 41 includes portions 42 protruding from the outer surface while extending in the axial direction, as shown in FIG. 9B showing a cross section according to II-II in FIG. 9A. The protruding portion 42 acts as an anchor during the subsequent filling of the resin, thereby enhancing the adhesion between the resin layer and the steel pipe 41.

Next, the degassed resin is injected into the space 42 between the nickel plating pipe 21 and the steel pipe 41 using the filling device shown in FIG. 9C. In order to use the charging device used in the present invention, first, prepare a support 70 for seating the plating tube into which the steel pipe 41 is inserted in the horizontal direction. After making the space 42 in a vacuum state with the exhaust pump 48 connected to the exhaust pipe 47, filling the valve 50, and fitting it to one end of the space 42 of the plating tube seated in the horizontal direction. The supply pipe 45 of the filling device is connected, and the degassed resin contained in the supply tank 44 flows into the space 42 when the valve 46 is opened. Reference numeral 43, which has not been described, is a fixing part for fixing the plating tube into which the steel pipe 41 is inserted.

Conventionally, the plating tube is vertically arranged at the time of filling, so it is inconvenient to work. However, in the present invention, the filling device has been modified so that the plating tube is horizontally arranged.

When the resin layer containing the metal powder is filled and cured, the cured defoaming resin layer 49 and the iron tube 41 are inserted into the nickel plating tube 21 as shown in FIG. 9D. Subsequently, the external finishing ring (254 in FIG. 3B) and the rotating shaft (255 in FIG. 3B) are welded to complete the embossing roller.

According to the present invention, since the silver film is removed from the final product of the embossing roller, when the embossed pattern is to be printed on thin paper or plastic paper, the problem of the silver film peeling or falling into powder is essentially eliminated, and the fabric manufacturer Does not require any action such as matting or matting the fabric.

As a silver film formation method, the thickness was conventionally thicker than the silver film by the method employ | adopted by this invention using a spray type. Therefore, it was not easy to remove the silver film. However, since the present invention uses an immersion method as shown in Fig. 6A, it is possible to form a silver film having a relatively thin thickness, so that the removal thereof is also easy.

Since the steel pipes 28 and 203 of the high temperature and high pressure embossed rollers are disposed over the front of the rollers, have perforations and are located apart from the nickel plated pipes, external pressure and thermal energy are distributed evenly over the front of the rollers, and the medium temperature low pressure embossed rollers The steel pipes (41, 253) of the having a protrusion 42 on the surface of the roller evenly distributed, and between the steel pipes (41, 253) and the nickel pipe is filled with a resin containing metal powder, the present invention The embossed rollers will have improved thermal conductivity and durability.

The nickel plating layer is not filled with the high-temperature metal melt used in the prior art, and the electroplating device and the filling device have been improved to set the plating tube horizontally so that the electroplating and filling process can be performed. Reduced risk and simplified manufacturing process improves efficiency.

In addition, according to the present invention, it is possible to selectively manufacture an embossing roller suitable for high temperature or high pressure and an embossing roller suitable for medium temperature or low pressure, thereby reducing the manufacturing cost.

In addition, since the steel pipes 28 and 203 of the embossed rollers suitable for use under medium or low pressure conditions are filled with a resin containing a resin or metal powder, the reinforcement inserted therein is disclosed. Hot melt processes, such as those in arcs, are not required, which can eliminate the risk.

Claims (7)

An embossing roller having a plated tube in which an embossed pattern is directly exposed to the outside, and a heat conductive tube inserted into the plated tube at a predetermined distance from the plated tube. The embossing roller of claim 1 wherein the thermally conductive tube has a plurality of perforations. 3. The thermally conductive ring of claim 2, further comprising: at the end of the plated tube, a heat conductive ring for sealing a space between the plated tube and the thermally conductive tube; An embossing roller further comprising a fastening portion penetrating the plated pipe, the heat conductive ring, and the heat conductive pipe and fastened thereto. The embossing roller according to claim 1, wherein the thermally conductive tube further includes a cured defoaming resin layer filled with a plurality of protrusions on an outer surface thereof and filled between the plating tube and the thermally conductive tube. The embossed roller according to claim 4, wherein the cured defoaming resin layer contains metal powder. The embossed roller according to claim 4 or 5, wherein the cured defoaming resin layer is made of urethane. Contains plating solution for plating At least two first supports for horizontally seating the plating tube having the silver film formed thereon in a first length in a vertical direction from the bottom, a second length extending in the vertical direction from the bottom but longer than the first length 2 or more second supports for enclosing the basket containing nickel penetrating the first support and penetrating the inside of the plating tube in a horizontal direction, both ends of which are in the plating solution, but having a "c" shaped end. And a plating tank including a circulation pump installed on a path of the circulation pipe. A temperature sensor and a heating device connected to the plating liquid in the plating tank; A controller for controlling the temperature sensor and the heating device to maintain the temperature of the plating liquid at a predetermined level; Plating layer forming apparatus for manufacturing an embossed roller comprising a power device connected to the silver film and the basket.