JPH01320195A - Method and device for embossing - Google Patents

Abstract

PURPOSE:To produce a large kinds of embossed products with a small quantity having a high added value so as to meet the variety of fashions and to reduce a time of delivery by a method wherein an irregular pattern part of a fixed shape is formed on a workpiece surface by a pressing action accompanied with an impact, which is imparted to a required impact pin on the basis of a signal from a control means, and a heat generation action accompanied with an ultrasonic vibration. CONSTITUTION:An ultrasonic generator 4 is so held so to move in synchronism with a sliding member 12 on the lower surface of a workpiece (cloth) 6 in the stat that a vibration support surface 21 thereof is always opposed to pressing parts 22 of impact pins. After the workpiece is extended on the upper surface of a base body 7 in the length direction thereof, with the command from a control means 2 a movable member 11 is moved crosswise and the sliding member 12 is moved longitudinally, and a required impact action is applied to a workpiece surface 17 by the respective impact pins 19.... In this manner, by a pressing action accompanied with the impact and a heat generation action of the pressing parts 22 accompanied with an ultrasonic vibration, a required embossing of predetermined irregular patterns 23 is applied to the workpiece surface.

Description

Detailed Description of the Invention (Industrial Application!!F) The present invention is based on the use of a dot impact device and an ultrasonic generator, and is a high-additional device that can meet the demands of fashion diversification in recent years. The present invention relates to an embossing method and apparatus that enable high-quality embossed products to be produced in small quantities in a wide variety of products at low cost, and also to significantly shorten delivery times.

(Prior Art and Problems to be Solved by the Invention) Embossing is a production technique that aims to improve the added value of products by creating a design with uneven patterns on the surface of cloth, etc. However, conventional embossing has the following problems.

That is, in conventional embossing, a workpiece such as cloth is sandwiched between a metal decorative roll engraved with uneven parts corresponding to the uneven pattern to be applied to the workpiece and a soft clamping roll.
Embossing is performed continuously by rotating both rolls, but for this purpose, it is necessary to prepare a fully bent decorative roll that is engraved with each design pattern.

However, since the production of such engraved metal decorative rolls requires a great deal of effort, a long delivery time is unavoidable.

Incidentally, conventional delivery times were usually long, about one and a half to two months. Furthermore, since the manufacturing cost of the metal decorative roll is very high, there is a problem in that the manufacturing cost of the product increases, and high-mix, low-volume production cannot be desired. In addition, since rolls are used, the area on which uneven parts can be formed is limited to a small area, which naturally limits the size of the pattern that can be formed and the width of the design pattern, which limits the decorativeness. there were. Furthermore, when embossing is performed using a metal decorative roll, there is a problem in that the entire roll is heated to a high temperature, resulting in a hard texture of the product.

As mentioned above, conventional embossing that requires fully bent decorative rolls has had various problems in terms of delivery time, profitability, decorativeness, and quality. Therefore, conventional embossing techniques are unable to meet today's diversified demands.

An object of the present invention is to provide an embossing method and an embossing apparatus that can solve these problems in conventional embossing.

(Means for solving the problem) The embossing method according to the present invention provides (3)
Using a dot impact device equipped with a number of impact pins that control the application of impact to the workpiece surface according to the An impact is applied by a required impact pin to a desired portion of the vibrating support surface facing portion of the supported workpiece in accordance with a signal from the control means, and a pressing action accompanying the impact and a heat generating action accompanying the ultrasonic vibration are used. This method is characterized by forming a concavo-convex pattern portion with a fixed shape on the surface of the workpiece.

Further, as the embossing device that can be used in the embossing method, one having the following configuration can be adopted. That is, the embossing device 1 according to the present invention includes a dot impact device 3 equipped with an appropriate number of impact pins 19 whose application of impact to the workpiece surface is controlled by signals from a control means, and a dot impact device 3 equipped with an ultrasonic vibration vibration device. The ultrasonic generator 4 includes an ultrasonic generator 4 having a support surface 21, and the vibration support surface 21 and the pressing portion 22 of the impact pin are connected to the workpiece 6.
The vibration support surfaces 21 are characterized in that they support the workpiece 6 when an impact is applied to the workpiece 6 by the impact pin 19. .

In the present invention, the workpiece refers to cloth (including non-woven fabric).
Sheet materials such as , paper, leather, and plastic film can be suitably used.

(Function) In order to perform embossing using the embossing device 1 of the present invention, in a state in which the workpiece 6 is supported on the support surface 21 of the ultrasonic vibration V'', each Impact pin 19 required 14i 21
make it work. When the impact pin 19 performs an impact action, the pressing portion 22 of the impact pin impacts a predetermined portion of the portion of the workpiece 6 facing the vibration support surface. When the workpiece is subjected to such impact pressure, the pressing part will have
Since a recess is formed by the pressing action associated with the impact and the heat generation action associated with the ultrasonic vibration, the required impact action of the impact pin as a whole creates an embossed pattern consisting of an uneven pattern on the workpiece surface. That will happen.

(Example) An embodiment of the present invention will be described below based on the drawings.

In the figure, a device 1 of the present invention includes a dot impact device 3 controlled by a control means 2 and an ultrasonic generator WrI! ,
4, which embosses a desired pattern on a workpiece (cloth 6a in this embodiment) 6 attached to a machine stand 5.

The cough machine stand 5 has guides 9.9 on the upper edges of both longitudinal sides of the machine stand main body 7, which has a rectangular frame shape.
0.10 is provided with a movable member 11 that is guided by the guide 9.9 and can move back and forth. and the movable member 1
1 includes a sliding member 12 that can reciprocate F2L in its length direction.
is provided. In addition, a cloth roll 13 in which a cloth 6a as a workpiece 6 is wound is mounted on the front edge of the cough machine stand main body 7 so that the welding work 6a can be unwound.
A winding roll 16 for winding up the embossed work cloth 15 is mounted on the rear edge.

The dot impact device 3 is, for example, a CADZC8M
An impact head 20 is provided in which an appropriate number of impact pins 19, whose impact on the workpiece surface 17 is controlled by a control means 2 using a system, are arranged in a row or in a plurality of rows, and It is fixed to the tip of the sliding member 12.

On the other hand, the ultrasonic generator 4 has a vibration support surface 21 on the lower surface of the workpiece (cloth) 6 at the pressing portion 2 of the impact pin.
The IM moving member 23 is attached to the holding member 23 so as to move in synchronization with the IM moving member 12 so as to always face the IM moving member 2. The output (frequency) of the ultrasonic generator 4 is applied to the workpiece surface 17 by the impact pin 19? It is set so that when a force blow is applied, a temperature (for example, about 200° C.) that is sufficient to fix the shape of the pressing recess formed by the impact pin 19 is instantaneously obtained.

However, in order to perform embossing using the embossing device 1 according to the present embodiment, first, a workpiece (cloth) is stretched over the upper surface of the machine body 7 in the longitudinal direction, and then the control means 2
The movable member 11 is moved back and forth and the sliding member 12 is moved left and right according to commands from the workpiece (cloth) surface 1.
7, when a required impact action is applied by each of the impact pins 19..., a preset uneven pattern portion (for example, the first Floral pattern shown in Figure 1)23
A desired embossing process consisting of the following will be applied to the surface of the workpiece (cloth). The impact pin 19 is connected to the uneven pattern portion 2
When the movable member 11 reaches the front end from the rear end of the machine main body 7 while sequentially forming the dot impact device 3, the operation of the dot impact device 3 is stopped and the workpiece (cloth) 6 is wound up on the winding roll 16. A new machining surface appears on the upper surface of the machine main body 7,
After that, the movable member 11 and the sliding member 12 are removed in the same manner as described above.
Then, the dot impact device 3 is operated to perform the required embossing on the acid-precipitated surface.

The embossing device 1 according to the present invention does not necessarily have to be configured as described in the above embodiments. For example, in the above embodiments, the movable member is in a fixed state and the sliding member is at one end of the movable member. After the embossing in the width direction is completed by the movement of the sliding member, a take-up roll may be configured to wind up the processed portion. The dot impact device 3 and the ultrasonic generator a4 are in a fixed position.
Alternatively, the workpiece 6 may be moved as required, thereby applying the desired embossing to the surface of the workpiece.

(Effects of the Invention) Since the method and apparatus according to the present invention are configured as explained above, they are completely different from those of conventional embossing techniques, and can significantly streamline the production process. Therefore, we are developing high value-added embossed products that can meet the requirements ε)7 of the recent diversification of fashion.
In addition to enabling low-cost, high-mix, low-volume production,
It is possible to significantly shorten the delivery time, and has many advantages both economically and practically.

This will be explained in detail below.

■ When performing embossing, the impact pins in the impact device from the driver 1 are operated as required by signals from the control means, thereby embossing the surface of the workpiece.
Unevenness 8! A desired embossing pattern consisting of a similar portion can be easily formed. Moreover, the size of the pattern to be displayed on the surface of the workpiece and the production of the design pattern can be easily carried out using, for example, the above-mentioned CAD/CAM system.

Therefore, when using the present invention, unlike when using a metal decorative roll with engraved uneven parts, there is no restriction on the size of the pattern or the width of the design pattern, and it is not possible to create it with conventional embossing. It becomes possible to form novel patterns on the surface of the workpiece. Furthermore, in the case of the present invention, since the workpiece is heated instantaneously by the ultrasonic generator (only when instantaneously pressed by the impact pin), the entire metal decorative roll is kept in a high temperature state as in the conventional case. Unlike when embossing is applied, it is possible to obtain a product with a good texture. Furthermore,
In the present invention, which uses a dot impact device, no force is applied to the workpiece during machining, so unlike the conventional method and device in which the workpiece is sandwiched between rolls and embossing is performed by embossing, the workpiece is Since there is no fear that the Mi weave will collapse, high-quality embossed products can be manufactured.

As described above, according to the present invention, it is possible to cope with high-mix, minimal-volume production, which has recently become a requirement, and to meet the demands for diversification of fashion with full satisfaction. Also, in order to meet today's diversified demand needs, it is necessary to create prototypes and respond to orders, but with the present invention,
Since prototypes can be created easily and at low cost, there is also the advantage of avoiding business risks. By the way, with conventional embossing technology that uses expensive metal decorative rolls, it is virtually impossible to create prototypes to meet demand needs, as demand needs cannot be determined. In addition, there were cases in which the decorative metal rolls that had been produced could not be used effectively, making it impossible to avoid problems related to business risk.

Although the present invention can easily be adapted to small-scale production of a wide variety of products, it cannot be denied that it is difficult to adapt to mass production; however, the advantages of the present invention can also be applied to mass production. In other words, if mass production is required,
After creating a prototype by applying the present invention and grasping the demand needs, a metal decorative roll with engravings based on a design pattern that can meet the demand needs is manufactured, and the metal decoration roll is used. It is sufficient to carry out mass production using the same method, thereby avoiding the above-mentioned management risk problems associated with conventional embossing.

■ In the case of the present invention, it is very easy to produce a design pattern, and moreover, desired embossing can be easily applied to the surface of the workpiece by controlling the dot impact device so as to match the design pattern. I can do it. Therefore, it is incomparable to the conventional embossing process, which required the production of a fully curved decorative roll with a time-consuming engraving process for each design pattern.
Delivery times can be significantly shortened, making it possible to quickly respond to demand needs.

[Brief explanation of the drawing]

Fig. 1 is a perspective view illustrating the embossing device according to the present invention, Fig. 2 is a perspective view showing the positional relationship between the dot impact device and the ultrasonic generator, and Fig. 3 explains the operation of the dot impact device. It is an explanatory diagram. 1... Embossing device, 2... Control means, 3...
・Dot impact device, 4... Ultrasonic generator, 6
...Workpiece, 19...Impact pin, 21...
- Vibration support surface, 22... Suppressing part of impact pin.

Claims (2)

[Claims] (1) A dot impact device that includes an appropriate number of impact pins whose application of impact to the workpiece surface is controlled by signals from a control means, and an ultrasonic generator that has a vibration support surface that vibrates ultrasonically. A shock is applied to a desired part of the workpiece supported by the vibration support surface by a desired impact pin according to a signal from the control means, and the pressing action and ultrasonic vibration accompanying the impact are An embossing method characterized by forming a concavo-convex pattern portion having a fixed shape on the surface of a workpiece by the accompanying heat generation action in a pressing portion. (2) An ultrasonic generator having a dot impact device 3 including an appropriate number of impact pins 19 whose application of impact to the workpiece surface is controlled by a signal from a control means, and a vibration support surface 21 that vibrates ultrasonically. The ultrasonic generator 4 is arranged such that its vibration support surface 21 and the pressing part 22 of the impact pin face each other with the workpiece 6 in between, and the vibration support surface 21 is , an embossing device that supports the workpiece 6 when an impact is applied to the workpiece 6 by an impact pin 19.