TWM527229U - Applicator for replacement hair strands - Google Patents

Abstract

An applicator (1) for replacement hair strands, one end of the hair of which is embedded in a thermoplastic element, having a punch-die unit, the mutually facing action profiles of which are adapted to the shape of at least one thermoplastic element. To ensure an undisturbed, continuous hot-melt adhesion between a person's own hair strand and replacement hair strands the punch (6) is disposed on a pivoting head (10) that carries an additional punch (11) with substantially the same contours, wherein the punch (6) is provided with a heating unit (12), the additional punch (11) is provided with a cooling unit (13).

Description

Replacement hair applicator

The present invention relates to an applicator for replacing hair strands, one end of which is embedded in a thermoplastic element, the applicator comprising a die unit, the mutually facing action profile of the unit being adapted to at least one thermoplastic The shape of the component.

Applicators of the type mentioned are known in the European patent application EP 1424017 B1. According to this patent, in the process of using the hairline, the replacement hair is inserted into the substrate by using its thermoplastic element, and then the hair of the person is inserted into the gap between the die and the punch, and is adhered by heat fusion. The punch is pressed against the mold under the influence of heat to embed the human hair into the thermoplastic element.

Experience has shown that when operating with known applicators, frequent pauses must occur because the die unit becomes overheated such that the thermoplastic elements stick together when the unit is opened, or filaments are formed, or softened or melted together.

Therefore, the object of the present invention is to remove this drawback, that is to ensure continuous operation via an optimized temperature distribution.

According to the present invention, this object is achieved by means of an applicator of the type mentioned at the outset of this document, since the punch is placed on the pivoting head, The pivoting head carries an additional punch having one of substantially the same contour, the punch is provided with a heating unit, and the additional punch is provided with a cooling unit.

Since the pivoting head according to the present invention has a thermal punch and an additional cold punch, the thermal punch is initially used to initiate hot melt adhesion during application of the replacement hairline, and after opening the crimping jaw and pivoting the pivoting head, by Post-pressing is performed using an additional cold punch, after which the resulting finished connection of the replacement hairline and the individual hairline adjusted by the thermoplastic element can be removed from the press clamp. In this way, any applicator failure due to overheating of the die unit and any resulting defects or unsightly hair connections are avoided.

It has proven to be advantageous to have the pivoting head implemented as a cooling body that is thermally insulated from the punch because, in practice, a temperature difference of about 200 °C is required between the punch and the additional punch.

The heating unit of the punch can be implemented in any manner known to those skilled in the art. However, it has proven to be most beneficial to have the unit implemented as an electric heating pad embedded in the punch.

The cooling unit of the additional punch preferably has at least one Peltier element, as as is known, the applicator itself is generally electrically operated, and thus the Peltier effect can be utilized in an elegant manner. Alternatively or in addition, further cooling may be provided because a fan mounted to be fixed is provided on the side of the back-punch and the additional punch.

In order to ensure the mode of operation of the applicator according to the present invention (i.e., first to perform hot pressing and then cold pressing), the embodiment is preferred. According to this embodiment, the pivoting head is housed on a slider. In the bearing, the slider can move forward and backward relative to the mold, and The slider is equipped with a drive. In this regard, it is proposed to provide a crank drive on the slider that is driven by the motor and pivotable between two limits, the connecting rod of the crank drive being hinged to the pivoting head outside the slider bearing.

Furthermore, for a time-saving and efficient mode of operation, it is advantageous for the punch, the additional punch and the die to each have an active profile for simultaneously accommodating a plurality of thermoplastic elements. In this case, it is possible to simultaneously apply strip hair pieces consisting of several such units, rather than simultaneously applying a single thermoplastic element and a replacement hair strand in each case.

1‧‧‧ applicator

2‧‧‧ Shell

3‧‧‧ bottom

4‧‧‧Actuator

5‧‧‧

6‧‧‧ Punch

7‧‧‧Hot thermoplastic components

8‧‧‧Replace the hair

9‧‧‧person's own hair

10‧‧‧ pivoting head

11‧‧‧Additional punch

12‧‧‧heating unit

13‧‧‧Cooling unit

14‧‧‧Fan

15‧‧‧Exhaust trough

16‧‧‧ drive

17‧‧‧ Slider

18‧‧‧ bearing

19‧‧‧Motor

20‧‧‧Crankshaft drive

21‧‧‧ Connecting rod

22‧‧‧Stylized unit

The present invention will be explained in more detail hereinafter by way of examples of embodiments illustrated in the drawings, wherein: FIG. 1 schematically illustrates a diagonal view of an applicator for replacing hair according to the present invention and Replacing the hair and replacing the hair; Figure 2 illustrates the same diagonal view, but with the outer casing removed; and Figures 3 through 8 schematically illustrate the sequence of motion of the pivoting head according to the present invention.

The applicator 1 for replacing hair strands according to the present invention comprises a housing 2 having a grip that a cable (not shown) enters at the bottom end 3 of the grip. The sequence of motion of the applicator is triggered by the actuator 4. The core of the applicator 1 is a die unit in which the die 5 is fixed and protrudes from the outer casing 2, while the punch 6 is movable and in the outer casing 2 under idle conditions. The dies 5 and the punches 6 each have an active section which is suitable, for example, for accommodating five thermoplastic elements 7 placed adjacent one another in strip form, wherein the hairline 8 is replaced Buried on the end side. However, the number of thermoplastic elements 7 that can be processed simultaneously can also be higher, for example, 14. During the application of the replacement hairline 8, the latter (as indicated in Figure 1) is inserted into the mould 5 with its thermoplastic element 7, and then the corresponding hairline 9 is placed on the replacement hairline 8, followed by The replacement hair is pressed together with the hair of the hair using the punch 6.

As can be seen from Figures 2 to 8, a punch 6 is provided on the pivoting head 10, which carries an additional punch 11 having substantially the same contour. The punch 6 is provided with a heating unit 12 as indicated in the drawing, which heating unit can consist, for example, of an electric heating pad embedded in the punch 6. However, the additional punch 11 is provided with a cooling unit 13, which in the preferred embodiment consists of at least one Peltier element. The pivoting head 10 is embodied as a cooling body, for example made of aluminium, which is thermally insulated from the punch 6. The reason for this thermal insulation is that the operating temperature of the punch 6 is about 200 ° C to 210 ° C, and the operating temperature of the additional punch 11 is only 18 ° C to 20 ° C. In order to support the cooling unit 13, a fan 14 (Fig. 2) placed in a fixed state is provided on the side of the outer casing 2 in which the pivoting head 10 is opposed to the punch 6 and the additional punch 11. Therefore, the outer casing 2 has the exhaust groove 15 (Fig. 1).

The pivoting head 10 is received in a bearing 18 on the slider 17, which is movable forward and backward relative to the die 5, and the slider is equipped with a driver 16. On the slider 17, a crank drive 20 is provided which is driven by a motor 19 and is pivotable between two limits, the connecting rod 21 of which is hinged to the pivoting head 10 outside the bearing 18 of the slider.

In the end region of the outer casing 2 facing away from the die 5, a stylized unit 22 (Fig. 2) is accommodated, by which the driver 16 can be designated and The sequence of motion of the motor 19 (stroke length, dwell time, etc.), and the temperature of the punch 6 and the additional punch 11 can be selected.

If during the use of the applicator 1 according to the present invention, after the thermoplastic element 7 is inserted into the mold 5 and the person's own hair 9 is introduced into the gap between the mold 5 and the punch 6, the operating temperature has been reached, The actuator 4 triggers an overall sequence of motion. Continuing from the position shown in Fig. 3, the punch 6 advances in the direction of the die 5 by the driver 16 (Fig. 4), and performs a hot pressing operation. Subsequently, the slider 17 returns (Fig. 5), and the pivoting head 10 is pivoted downward by the motor 19 and the crankshaft driver 20 until reaching the position indicated in Fig. 6, in which the additional punch 11 occupies The same position where the punch 6 is at the beginning (Fig. 3). Then, the slider is again moved by the driver 16 in the direction of the mold 5 (Fig. 7), thereby performing the cold pressing operation. Finally, the slider 17 is returned by the driver 16, and the pivoting head 10 is brought back to its original position via the motor 19 and the crank drive 20, wherein the punch 6 is located at the opposite position of the die 5 in Fig. 3 (Fig. 8). The hair connections can then be removed from the mold 5 and the hair applicator can be used in different locations. With the stylized unit 22, the fan 14 can be switched to permanent operation or operated in accordance with temperature.

1‧‧‧ applicator

2‧‧‧ Shell

3‧‧‧ bottom

4‧‧‧Actuator

5‧‧‧

6‧‧‧ Punch

10‧‧‧ pivoting head

11‧‧‧Additional punch

12‧‧‧heating unit

13‧‧‧Cooling unit

14‧‧‧Fan

16‧‧‧ drive

17‧‧‧ Slider

18‧‧‧ bearing

22‧‧‧Stylized unit

Claims (8)

An applicator for replacing hair strands, one end of which is embedded in a thermoplastic element (7), the applicator having a die unit, the mutually facing action profile of the unit being adapted to at least one In the shape of a thermoplastic element (7), the applicator is characterized in that the punch (6) is placed on a pivoting head (10) carrying an additional punch (11), the additional punch (11) There is a substantially identical contour, wherein the punch (6) is provided with a heating unit (12), which is equipped with a cooling unit (13). The applicator of claim 1 wherein the applicator is characterized in that the pivoting head (10) is embodied as a heat sink that is thermally insulated relative to the punch (6). The applicator of claim 1 or 2, wherein the applicator is characterized in that the heating unit (12) of the punch (6) is embodied as an electric heating pad embedded in the punch. The applicator of claim 1 or 2, characterized in that the cooling unit (13) of the additional punch (11) has at least one Peltier element. The applicator of claim 1 or 2, wherein the applicator is characterized in that the back of the pivoting head (10) is provided on the side of the punch (6) and the additional punch (11) Fixed one fan (14). The applicator of claim 1 or 2, wherein the applicator is characterized in that the pivoting head (10) is received in a bearing (18) on a slider (17), the slider (17) being opposite The mold (5) moves forward and backward, and the slider (17) is equipped with a driver (16). The applicator of claim 6 wherein the applicator is characterized by providing a crank drive (20) driven by a motor (19) and pivotable between two limits, one of the crank drives A connecting rod (21) is hinged to the pivoting head (10) outside the bearing (18) of the slider. The applicator of claim 1 or 2, wherein the applicator is characterized in that the punch (6), the additional punch (11) and the die (5) each have an active profile for simultaneous storage Several thermoplastic elements (7).