JPH058084B2 - - Google Patents

Description

Detailed Description of the Invention [Technical Field] The present invention relates to an embossing roll for forming an uneven pattern on the surface of a synthetic resin extrusion molded product, a cement extrusion molded product, etc. immediately after extrusion.

[Background Art] When giving an uneven pattern to a synthetic resin molded product or a molded product of an inorganic material such as cement, especially in the case of an extrusion molded product, immediately after extrusion from a mold 10 onto a take-off belt 12 as shown in FIG. Conventionally, an uneven pattern has been formed on the molded product 11 by rolling the embossing roll A onto the surface of the molded product 11 and transferring the uneven pattern 2 of the embossing roll A to the molded product 11. There is. The embossing roll A is formed by providing an uneven pattern 2 corresponding to the pattern to be applied to the molded product 11 on the outer peripheral surface by engraving or the like.

When forming an uneven pattern on a molded product, the shape of the uneven pattern differs depending on the product, so it is necessary to prepare multiple embossing rolls with uneven patterns according to the shape, and the embossing roll If a part of the uneven pattern of the embossing roll is damaged, the entire embossing roll must be discarded, which raises the problem of high costs in terms of equipment and materials.

[Object of the Invention] The present invention has been made in view of the above points, and it is possible to easily change the shape of the pattern by replacing the pattern board for patterning, and also to repair the pattern by replacing the pattern board. The object of the present invention is to provide an embossing roll that can be easily used.

[Disclosure of the Invention] The embossing roll according to the present invention has a plurality of pattern plates 3, 3 each having an uneven pattern 2 formed on the outer surface.
... are arranged around the entire circumference of the roll core 1, fixing pieces 5 are provided protruding from the inner surface of the holding plate 4, and holding pieces 5 are attached to both ends of the holding plate 4 on both sides of the fixing piece 5. 6, 6 are extended, and this presser plate 4 is arranged between the side ends of each pattern plate 3, 3, and the presser plate 4 is fixed in a fitting recess 7 recessed in the outer peripheral surface of the roll core 1. Piece 5
are fitted and removably fixed, and the side edge of the pattern plate 3 is sandwiched between the presser piece 6 of the presser plate 4 and the outer peripheral surface of the roll core 1. The above object has been achieved by making it possible to configure the embossing roll A by detachably attaching the pattern plate 3 on which the uneven pattern 2 is formed by the presser plate 4 to the roll core 1. This will be explained in detail using examples.

The pattern plate 3 is formed by providing an uneven pattern 2 on its surface to give an uneven pattern to the flat part of the molded product, and has a curved shape in which the inner and outer surfaces have a curvature equal to the curvature of the outer peripheral surface of the roll core 1. It is formed as a plate as shown in Fig. 3. The width dimension of the curved side of this pattern board 3 is set to a dimension slightly shorter than 1/1 of an integer, such as 1/6 of the circumference of the outer periphery of the roll core 1. Further, the holding plate 4 is formed by providing a concave-convex pattern 2 on the surface that gives a concave-convex pattern to the concave groove portion of the molded product,
As shown in FIG. 4, a fixing piece 5 is projected from the inner surface of the holding plate 4, and stop portions 13 are extended from both ends of the fixing piece 5. A through hole 15 for passing a bolt 14 therethrough is bored through the stop portion 13 . Further, on both sides of the fixing piece 5, holding pieces 6, 6 are provided extending over the entire length of the holding plate 4 at both ends thereof. A rotating shaft 16 is provided protruding from both ends of the roll core 1, which is the base of the embossing roll, and a groove-shaped fitting recess 7 is provided on the outer peripheral surface of the roll core 1 along the entire length in the generatrix direction. It is provided. A plurality of the fitting recesses 7 are provided in parallel and have the same width as the pattern plate 3.

Therefore, the pattern plates 3, 3... are disposed on the outer periphery of the roll core 1, and a presser plate 4 is further provided between the side edges of the adjacent pattern plates 3, 3, for fixing each presser plate 4. By fitting the piece 5 into the fitting recess 7 of the roll core 1 and screwing the bolt 14 passed through the through hole 15 of the stopper 13 into the threaded hole 17 at the bottom of the fitting groove 7, each A press plate 4 is fixed to the roll core 1. At this time, as shown in FIG. Roll core 1 by sandwiching the side edges of
A pattern plate 3 is attached to the outer periphery of the pattern plate 3. In this way, it is possible to form an embossing roll A in which a pattern plate 3 having an uneven pattern 2 as shown in FIG. 1 is attached to the entire outer periphery of the roll core 1.

The embossing roll A thus formed is brought into contact with the surface of the molded product 11 immediately after extrusion as shown in FIG. 5, and is used to impart an uneven pattern to the molded product 11. In this case, the uneven pattern 2 of the pattern plate 3 can give an uneven pattern to the flat part of the molded product 11, and the pattern plate 3
It is possible to form a concave groove in the molded product 11 by the presser plate 4 which protrudes further than the presser plate 4, and it is also possible to give an uneven pattern to the bottom of the groove by the concave-convex pattern 2 of the presser plate 4. It will be possible. For example, in the case of roof panels made of cement molded products, it is necessary to provide grooves running in the direction of the eaves on the surface of the roof panels to prevent rainwater from moving laterally (parallel to the eaves) due to the influence of wind, etc. However, by using the embossing roll A of the present invention in this way,
This means that it is possible to form concave and convex patterns on the molded product 11 and to form concave grooves at the same time.

In addition, when changing the uneven pattern to be applied to the molded product 11 with the embossing roll A formed in this way, the bolt 14 is removed to form grooves on the molded product, and the embossing roll A is used to press the pattern plate 3. Remove the holding plate 4 from the roll core 1, remove the holding plate 4, and remove the presser plate 4 from the roll core 1.
Remove pattern board 3 from. Then, the pattern plate 3 and the pressing plate 4 provided with different uneven patterns 2 are attached to the roll core 1 in the same manner as described above. Therefore, by simply sharing the roll core 1 and changing the pattern plate 3 and presser plate 4, it is possible to easily accommodate changes in the design. Furthermore, if a part of the uneven pattern 2 is damaged, the embossing roll A can be easily repaired by replacing the damaged pattern plate 3 or presser plate 4 with a new one. become. When repairing the pattern plate 3 and the presser plate 4 themselves, the pattern plate 3 and the presser plate 4 can be easily repaired with the pattern plate 3 and the presser plate 4 removed from the roll core 1.

[Effects of the Invention] As described above, in the present invention, a plurality of patterned plates each having a concavo-convex pattern formed on the outer surface are arranged around the entire circumference of the roll core, and a plurality of patterned plates each having a concavo-convex pattern formed on the outer surface are arranged around the entire circumference of the roll core, and a plurality of patterned plates are arranged on the inner surface of the presser plate. A fixing piece is provided protrudingly, and a holding piece is extended on both sides of the holding plate on both sides of the fixing piece, and this holding plate is arranged at the side end of each pattern plate and attached to the outer peripheral surface of the roll core. The fixing piece of the holding plate is fitted into the recessed fitting recess and removably fixed, and the side edge of the pattern board is held between the holding piece of the holding plate and the outer peripheral surface of the roll core. , the pattern board can be removed from the roll core by removing the presser plate from the roll core and removing the pressure by the presser plate, and by simply changing and replacing the pattern plate and presser plate while sharing the roll core, It can be easily adapted to changes in the pattern applied to the molded product, and if a part of the uneven pattern is damaged, the damaged pattern plate can be replaced with a new one. The embossing roll can be easily repaired, and there is no need to prepare a plurality of embossing rolls corresponding to the patterns or discarding the embossing roll itself.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a perspective view of a pattern board used in the same, and FIG. 4 is a perspective view of a presser plate used in the same.
FIG. 5 is a perspective view of the embossing roll in use. 1 is a roll core, 2 is an uneven pattern, 3 is a pattern board, 4
5 is a holding plate, 5 is a fixing piece, 6 is a holding piece, and 7 is a fitting recess.

Claims (1)

[Claims] 1. A plurality of pattern plates with uneven patterns formed on the outer surface are arranged around the entire circumference of the roll core, and a fixing piece is provided protruding from the inner side of the holding plate, and on both sides of the fixing piece. Holding pieces are extended to both ends of the holding plate, and this holding plate is placed between the side ends of each pattern plate, and the fixing pieces of the holding plate are inserted into the fitting recesses formed on the outer peripheral surface of the roll core. An embossing roll characterized in that the embossing roll is fitted and removably fixed, and the side edges of a pattern plate are sandwiched between a presser piece of a presser plate and an outer peripheral surface of a roll core.