JPH06199100A - Manufacture of decorative piece made of synthetic resin - Google Patents

Abstract

PURPOSE:To provide a method of producing decorative pieces, wherein expansion and contraction of a pattern sheet, which result from variations and the like in the external conditions such as temperature, humidity, etc., are reduced, the positioning of a pattern on a table of a high-frequency dielectric heating device is made easy, and the production efficiency of the decorative pieces made of synthetic resin can be increased. CONSTITUTION:Release paper 3 is stuck to a rear face of a flexible sheet 2 made of thermoplastic synthetic resin, and at least one pattern 4 is printed on the front surface of the sheet 2. At least two positioning bores 5 are drilled at predetermined positions at the surrounding portions of each pattern 4, respectively, and only the release paper 3 at the portion of each pattern 4 is removed to prepare a pattern sheet 1. A base fabric 31 and the like are set at a processing position on a table 21 of a high-frequency dielectric heating device. Positioning pins 12 are inserted into the positioning bores 5 for the pattern 4 of the pattern sheet 1, and the pattern 4 is set on the base fabric 31 and the like. The pattern 4 is pressed with an engraving die of the high-frequency dielectric heating device and welded on the base fabric 31 under high-frequency dielectric heating, and the pattern sheet 1 is then fused and cut along the outer profile line of the pattern 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin decoration such as a patch having a three-dimensional pattern by pressing and welding a soft thermoplastic synthetic resin sheet having a printed pattern onto a material to be welded with an engraving die. The present invention relates to a method for manufacturing a decorative piece for manufacturing a piece.

[0002]

2. Description of the Related Art In a conventional method for manufacturing a synthetic resin decorative piece, as shown in FIG. 4, first, a hard synthetic resin plate is attached to the back surface of a soft thermoplastic synthetic resin sheet b, and then the sheet b One or more (12 in FIG. 4) patterns c corresponding to individual decorative pieces on the surface, and two or more (4 in FIG. 4) positioning cross marks d at predetermined positions around each pattern c. Are printed, and the printed thermoplastic synthetic resin sheet b is peeled from the hard synthetic resin plate to produce a pattern sheet a.

Next, the pattern sheet a is cut into individual patterns c to produce individual pattern sheets e (see FIG. 5). At this time, on each individual pattern sheet e, as shown in FIG. 5, one pattern c and two or more (4 in FIG.
The cross mark d is also included.

After this, as shown in FIG. 5, the base material f
The heat-adhesive film g and the individual pattern sheet e on the cloth f
The film g and the sheet e are placed in this order on the processing position of the table h of the high frequency dielectric heating device, and fixed by pressing with two fixing plates i that are installed in parallel on the table h.

At this time, the vertical lines of the two cross marks d on the individual pattern sheet e are made to coincide with the opposite sides j of the two fixing plates i installed in parallel to each other, and Align each horizontal line of the cross mark d with each horizontal line k drawn on the two fixing plates i,
The pattern c of the individual pattern sheet e is positioned on the table h of the high frequency dielectric heating device. It should be noted that the distance M between the opposite sides j of the two fixing plates i installed in parallel to each other matches the distance m between the vertical lines of the two cross marks d on the individual pattern sheet e. Adjust in advance.

Finally, the pattern c of the individual pattern sheet e is pressed by the engraving mold n of the high frequency dielectric heating device as shown in FIG. 6, and the thermal adhesive film g is melted by the high frequency dielectric heating to be placed on the base fabric f. The individual pattern sheet e is melted and fused along the outer contour line of the pattern c to manufacture a synthetic resin decorative piece. It should be noted that the welding pattern on the synthetic resin decorative piece has irregularities formed at predetermined positions due to the irregular shape of the engraving die n.

By the way, the conventional manufacturing method of the synthetic resin decorative piece described above has the following problems.

(1) Soft thermoplastic synthetic resin sheet b
The pattern sheet a consisting of expands and contracts due to drying of the printed pattern c, peeling from the hard synthetic resin plate, and changes in external conditions such as temperature and humidity.
Is irregularly deviated from the design value. (2) The individual pattern sheet e made of the soft thermoplastic synthetic resin sheet b is radiant heat (70 to 12) from the engraving die n.
It grows at 0 ° C and curls. (3) Due to the influences of (1) and (2), it is difficult to position the pattern c of the individual pattern sheet e at the processing position of the table h of the high-frequency dielectric heating device. Therefore, the operator's eyes are easily tired and The quality and production amount of synthetic resin decorative pieces vary depending on the skill and character of the operator, and thus the production efficiency of the decorative pieces is poor.

[0009]

In view of the above-mentioned problems of the prior art, in the present invention, the pattern sheet is produced due to the manufacturing process of the pattern sheet, changes in external conditions such as temperature and humidity, and the temperature of the processing apparatus. Reduces expansion and contraction, facilitates positioning of patterns in the processing position of the table of the high frequency dielectric heating device,
An object of the present invention is to provide a method for manufacturing a decorative piece that can improve the production efficiency of a synthetic resin decorative piece.

[0010]

As means for solving the above problems, in the present invention, a release paper is attached to the back surface of a soft thermoplastic synthetic resin sheet, and individual decorative pieces are attached to the surface of the sheet. After printing one or more corresponding patterns, two or more positioning small holes are punched at predetermined positions around each pattern, and a cutting line that surrounds each pattern is cut only on the release paper. A pattern sheet is prepared by removing only the release paper of each pattern portion along with the number of the small holes in the same arrangement as that of the positioning small holes that each pattern of the pattern sheet has in its periphery. In the table of the high frequency dielectric heating device in which the same number or less and two or more positioning pins are erected, a material to be welded such as a base material and a heat-bonding film is placed at a processing position surrounded by the positioning pins. The positioning eyelet of any one pattern in like sheet by inserting said positioning pin,
The one pattern is placed on the material to be welded, and subsequently,
By pressing with an engraving die of the high frequency dielectric heating device, the one pattern is welded to the material to be welded by the high frequency dielectric heating and the pattern sheet is fused along the outer contour line of the one pattern. , Is adopted.

[0011]

In the present invention having the above-mentioned structure, as shown in FIG. 1, the release paper 3 is attached to the back surface of the soft thermoplastic synthetic resin sheet 2, and the surface of the sheet 2 is coated with individual decorative pieces. After printing one or more (12 in FIG. 1) corresponding patterns 4, two or more positioning small holes 5 (two in FIG. 1) are punched at predetermined positions around each pattern 4, and each pattern 4 The cut sheet 6 surrounding each of the above is cut only in the release paper 3, and only the release paper 3 of each pattern 4 portion is removed along the cut line 6 to produce the pattern sheet 1. Therefore, the pattern sheet used in the present invention In No. 1, a soft thermoplastic synthetic resin sheet 2 is reinforced by a release paper 3 from which only each pattern 4 portion is removed.

Therefore, the pattern sheet 1 used in the present invention
Shows that the elongation due to the removal of only each pattern 4 portion on the release paper 3 is smaller than the elongation due to the peeling from the hard synthetic resin plate in the pattern sheet a of FIG. 4 used in the conventional technique, and Compared with the pattern sheet a used in the prior art, which is composed of only the soft thermoplastic synthetic resin sheet b shown in FIG. 4, expansion and contraction of the printed pattern 4 due to drying and changes in external conditions such as temperature and humidity. Decrease.

The pattern sheet 1 used in the present invention is
With the soft thermoplastic synthetic resin sheet 2 reinforced by the release paper 3 without being cut into each pattern 4, as shown in FIG. 2, any one pattern 4 is a high frequency dielectric heating device. The table 21 is placed at the processing position. For this reason,
Compared with the individual pattern sheet e of FIG. 5 used in the prior art,
Radiant heat (70 to 120) from the engraving mold 23 (see FIG. 3)
Elongation due to (℃) decreases. Further, unlike the individual pattern sheet e of FIG. 5, it does not curl.

That is, in the present invention, the positional deviation of the positioning small holes 5 caused by the expansion and contraction of the soft thermoplastic synthetic resin sheet 2 in the pattern sheet 1 is caused by the expansion and contraction in the pattern sheet a and the individual pattern sheet e used in the prior art. The positional deviation of the cross mark d for positioning is significantly reduced.

Moreover, in the present invention, as shown in FIG.
Each pattern 4 of the pattern sheet 1 has two or more positioning eyelets 5 at predetermined positions around it (2 in FIG. 2).
The number of positioning pins 12 standing on the table 21 of the high-frequency dielectric heating device in the same arrangement as the positioning small holes 5 is equal to the number of positioning small holes 5 of each pattern 4 of the pattern sheet 1. Two or more with the same number or less (two in Figure 2)
Therefore, the insertion of the positioning small hole 5 of any one pattern 4 in the pattern sheet 1 into the positioning pin 12 is performed without being blocked by the extra positioning pin 12, and The inserted pattern sheet 1 does not rotate around the positioning pin 12.

Therefore, in the present invention, the positioning small hole 5 of any one pattern 4 on the pattern sheet 1 is surrounded by the positioning pin 12 of the table 21 of the high frequency dielectric heating device only by inserting the positioning small hole 5. Positioning of any one pattern 4 at the processing position 22 of the table 21 is completed.

For this reason, as shown in FIG. 2, the base material 31 which is the material to be welded and the thermal adhesive film 32 which is the welding reinforcing material are provided in the order of the material 31 and the film 32 in the table 21 of the high frequency dielectric heating device. Of the pattern sheet 1 is inserted into the positioning pin 12 through the positioning small hole 5 of the arbitrary pattern 4 in the pattern sheet 1, and the single pattern 4 is
When the pattern 4 is placed on the heat-bonding film 32 and then pressed by the engraving die 23 of the high-frequency dielectric heating device as shown in FIG. 3, the one pattern 4 is held by the engraving die 23 of the high-frequency dielectric heating device. Engraving mold 23 without misalignment with the uneven shape
Pressed by.

Therefore, when a high frequency is transmitted after the pressing to perform high frequency dielectric heating, the soft thermoplastic synthetic resin sheet 2 in the pattern sheet 1 is melted and cut along the outer contour line of the one pattern 4. At the same time, the portion of the synthetic resin sheet 2 pressed by the engraving die 23 is melted and the one pattern 4 is welded on the base material 31, and the heat-adhesive film 32 which is a welding reinforcement material is also melted. The welding is reinforced, and the welded pattern 4 is provided with irregularities due to the irregularities of the engraving die 23 at predetermined positions of the pattern 4, so that a synthetic resin decorative piece having a three-dimensional pattern is manufactured.

By the way, in the above description, the base material 31 is used as the material to be welded and the thermal adhesive film 32 is used as the welding reinforcing material, but the material to be welded is the base material 31 alone. Or, even in the case of the thermal adhesive film 32 alone having the release paper adhered on the back surface,
Alternatively, when the material to be welded is the base fabric 31, a thermoadhesive film 32 is placed on the fabric 31, and a thermoplastic synthetic resin foam sheet or a thermoplastic synthetic resin sheet is further placed on the film 32. Or when the material to be welded is the base fabric 31 and the thermoplastic synthetic resin foam sheet or the thermoplastic synthetic resin sheet is placed on the fabric 31. Even if there is, a synthetic resin decorative piece is manufactured by the same operation as the above. In addition, not only the cloth but also the base material 31 as the material to be welded
A synthetic resin sheet is also included.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

First, as shown in FIG. 1, a release paper 3 is attached to the entire back surface of a soft thermoplastic synthetic resin sheet 2, and a pattern 4 corresponding to each decorative piece is applied to the front surface of the sheet 2.
After printing the individual pieces, two positioning small holes 5 are punched at predetermined positions around each pattern 4, and cut lines 6 surrounding each pattern 4 are cut only on the release paper 3 and along the cut lines 6. Then, only the release paper 3 in each pattern 4 portion is removed to produce the pattern sheet 1.

Next, as shown in FIG. 2, the two positioning pins 12 and the rectangle which are arranged in the same manner as the two positioning small holes 5 respectively provided on the periphery of each pattern 4 of the pattern sheet 1. A jig 10 having a space 11 is bonded to a predetermined position on a table 21 of the high frequency dielectric heating device, and two positioning pins 12 of the jig 10 are erected on the table 21 of the high frequency dielectric heating device. After that, in the rectangular space 11 of the jig 10, which is the processing position 22 surrounded by the positioning pin 12 in the table 21 of the high-frequency dielectric heating device, the welded portion having a shape slightly smaller than the shape of the space 11 is welded. The base material 31 which is a material and the heat-bonding film 32 which is a welding reinforcement material.
, And then any one of the pattern sheets 1
Positioning eyelets 5 that individual patterns 4 have around them
Is inserted into the positioning pin 12, and the one pattern 4 is placed on the thermal adhesive film 32 in a state where the one pattern 4 is placed on the soft thermoplastic synthetic resin sheet 2.

By the way, in the illustrated embodiment, the base material 3
1 and the heat-bonding film 32 are simply placed in the rectangular space 11 of the jig 10, the base material 31 and the heat-bonding film 3
Machining position 2 of table 21 of high frequency dielectric heating device with 2
Since the positioning in 2 is completed, the positioning is easier than the positioning of the base material f and the heat-bonding film g in the prior art as shown in FIG.

In the illustrated embodiment, the pattern sheet 1 is placed on the heat-bonding film 32 with the pattern 4 on the soft thermoplastic synthetic resin sheet 2 facing up.
When the soft thermoplastic synthetic resin sheet 2 has transparency, the pattern sheet 1 can be placed on the thermal adhesive film 32 or the like with the pattern 4 facing down.

Any one pattern 4 on the pattern sheet 1
After being placed on the heat-bonding film 32, the pattern 4 is pressed by the engraving die 23 of the high-frequency dielectric heating device as shown in FIG. At the same time, the pattern sheet 1 is melt-cut along the outer contour of the pattern 4 to manufacture a synthetic resin decorative piece.

In the illustrated embodiment, the jig 10 is used to vertically set the two positioning pins 12 of the jig 10 at predetermined positions on the table 21 of the high-frequency dielectric heating device. In the method of manufacturing a synthetic resin decorative piece according to the above, the use of the jig 10 is not indispensable, and therefore the positioning pin 12 can be directly erected at a predetermined position on the table 21 of the high frequency dielectric heating device. is there. But,
When the jig 12 is used, it is easier to position the base material 31, the heat-bonding film 32, etc. on the table 21 of the high-frequency dielectric heating device as in the illustrated embodiment, and various types of patterns having different sizes and the like are used. 4 can be dealt with by simply exchanging the jig 10 for the welding.
preferable.

Further, in the illustrated embodiment, only the heat-adhesive film 32 is placed on the base cloth 31, but it is also possible to further put a thermoplastic synthetic resin foam sheet on the heat-adhesive film 32, for example. Is. In addition, by placing the thermoplastic synthetic resin foam sheet on the thermal adhesive film 32,
When the pattern sheet 1 is placed on the sheet and any one pattern 4 on the pattern sheet 1 is pressed by the engraving die 23 of the high frequency dielectric heating device to be welded onto the base material 31, the base material 31 is formed. The pattern 4 welded on 31 has a larger height difference between the unevenness formed by the unevenness of the engraving die 23 and the unevenness of the unevenness as compared with the case where the thermoplastic synthetic resin foam sheet is not used. It becomes clear.

Further, in the illustrated embodiment, each pattern 4 of the pattern sheet 1 has two positioning small holes 5 in its periphery and two positioning pins 12 but the positioning small holes are two. The number of 5 is not limited to 2 and may be 2 or more, and the number of positioning pins 12 is 2 as well.
The number of positioning holes 5 is not limited to two, and may be two or more, which is equal to or less than the number of positioning eyelets 5.

Further, in the illustrated embodiment, the perforation positions of the positioning small holes 5 which the patterns 4 of the pattern sheet 1 respectively have in the periphery thereof are the portions reinforced by the release paper 3 in the soft thermoplastic synthetic resin sheet 2. However, the position of the positioning small hole 5 may be a predetermined position around each pattern 4 in the pattern sheet 1, and therefore, in a portion of the soft thermoplastic synthetic resin sheet 2 which is not reinforced by the release paper 3. It may be. However, the perforation position of the positioning small hole 5 is preferably a portion reinforced by the release paper 3 in the soft thermoplastic synthetic resin sheet 2 as in the illustrated embodiment.

The pattern 4 printed on the pattern sheet 1 is a concentric pattern in the illustrated embodiment,
Not limited to the concentric pattern, any pattern may be used,
Although the number of prints is 12 in the illustrated embodiment, it is not limited to 12 and may be 1 or more.

[0031]

The present invention has the constitution and operation described above, and the pattern sheet used in the present invention has a soft thermoplastic synthetic resin sheet reinforced by a release paper from which only each pattern portion is removed. Therefore, the elongation due to the removal of only each pattern portion of the release paper is reduced as compared with the elongation due to the peeling from the hard synthetic resin plate in the pattern sheet used in the prior art, and the dryness of the printed pattern and Expansion and contraction due to changes in external conditions such as temperature and humidity are reduced as compared with the pattern sheet used in the conventional technique which is composed only of a soft thermoplastic synthetic resin sheet.

Moreover, the pattern sheet used in the present invention is
Unlike the pattern sheet used in the prior art, each pattern is not cut into individual patterns, and a soft thermoplastic synthetic resin sheet is still reinforced with release paper, and any one pattern is a high-frequency dielectric heating device. Since it is placed at the processing position of the table, compared to the pattern sheet used in the conventional technology, the labor of cutting for each pattern is reduced, and compared with the individual pattern sheet used in the conventional technology, Radiant heat (70-120
Elongation due to (℃) decreases and does not curl.

Therefore, according to the present invention, the positional deviation of the positioning eyelet due to the expansion and contraction of the soft thermoplastic synthetic resin sheet in the pattern sheet is caused by the expansion and contraction in the pattern sheet and the individual pattern sheet used in the prior art. Significantly reduced compared to the misalignment of the cross mark.

For this reason, in the present invention, the positioning small holes that any one of the patterns on the pattern sheet has at predetermined positions around the pattern sheet are simply inserted into the positioning pins standing on the table of the high frequency dielectric heating device. The positioning of the pattern on the table of the high-frequency dielectric heating device is easier than the positioning of the pattern on the individual pattern sheet in the prior art, in which the positioning of the pattern on the pattern sheet is completed and the positioning of the cross mark for positioning is performed. Becomes

Therefore, in the present invention, as compared with the prior art,
The eyestrain of the operator is reduced, the variation in the quality and production amount of the synthetic resin decorative piece due to the skill and character of the operator is reduced, and the production efficiency of the decorative piece is improved.

[Brief description of drawings]

FIG. 1 is a back view of a pattern sheet according to an example of the present invention.

FIG. 2 is a perspective view showing the positioning of any one pattern on the pattern sheet on the table of the high-frequency dielectric heating device according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view showing pressing and welding of a pattern of a pattern sheet on a base fabric by an engraving mold in an example of an embodiment of the present invention.

FIG. 4 is a plan view of a pattern sheet according to a conventional technique.

FIG. 5 is a perspective view showing positioning of a pattern of an individual pattern sheet on a table of a high-frequency dielectric heating device according to a conventional technique.

FIG. 6 is a cross-sectional view showing pressing and welding of a pattern of an individual pattern sheet onto a base material by an engraving die in the prior art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pattern sheet 2 Soft thermoplastic synthetic resin sheet 3 Release paper 4 Pattern 5 Positioning small hole 6 Cut line 12 Positioning pin 21 High frequency induction heating device table 22 Processing position of high frequency induction heating device table 23 Engraving metal of high frequency induction heating device Mold 31 Base cloth 32 Thermal adhesive film

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[Procedure amendment]

[Submission date] November 24, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

Claims (1)

[Claims] 1. A release paper is attached to the back surface of a soft thermoplastic synthetic resin sheet, and at least one pattern corresponding to each decorative piece is printed on the surface of the sheet, and then at a predetermined position around each pattern. Two or more positioning small holes are punched, and a cutting line that surrounds each pattern is cut into only the release paper, and only the release paper of each pattern portion is removed along the cutting line to produce a pattern sheet. Then, after this, a high-frequency dielectric heating device in which two or more positioning pins are erected up to the same number as the number of the small holes in the same arrangement as the positioning small holes that each pattern of the pattern sheet has in its periphery. Place the material to be welded such as the base material and the heat-adhesive film at the processing position surrounded by the positioning pins on the table of
The positioning small hole of any one pattern in the pattern sheet is inserted into the positioning pin, the one pattern is placed on the material to be welded, and subsequently, the high frequency dielectric heating device A synthetic resin decorative piece that is pressed by an engraving die to weld the one pattern to the material to be welded by high-frequency dielectric heating and melt the pattern sheet along the outer contour line of the one pattern. Production method.