JP2572194B2 - Sock finishing template - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sock finishing template comprising an aluminum alloy core material and a fiber reinforced plastic in combination.

[0002]

2. Description of the Related Art Conventionally, a sock finishing machine of the steam set type generally used is equipped with a sock mounting portion for mounting unfinished socks on a template along an endless track path, and a sock mounting portion mounted on the mounting portion. A steam set room for collecting socks in one set and steam setting, a drying room for drying steam-set socks, a cooling unit for cooling the dried socks, and a removing unit (or a removing unit) for further removing the cooled socks. ) Are arranged so as to make a circuit. However,
In the sock finishing machine of this type, a carriage having a set of (typically 20 to 30) template plates can run on the track path, and a plurality of sets are separated and arranged on the track path. Then, each of the chambers and each section is configured to perform a predetermined process.

[0003] Such a sock finishing template in a sock finishing machine is made of aluminum alloy and has a thickness of:
When the template is erected vertically, the rigidity is maintained by setting the thickness to a predetermined value so that the tip does not fall down. Therefore, this plate thickness is usually 2 to 4 mm in the case of a template for long socks.
It is about 1.5 mm in the case of a template for short socks and about 1.0 to 2.0 mm in the case of a special template.

[0004]

However, in the case of a template using an aluminum alloy, the heat capacity (density of 2.7 to 2.8 g / cm ³ and specific heat of 0) of the template is notwithstanding good heat transfer. .24 cal / g ° K), it takes a long time to raise the temperature of the template during the steam setting, and the heat release time of the template is also long, so that the surface of the template transported from the set room and the drying room is quite difficult. Not cooled. Therefore, the socks dried in the steam set are extracted by the extraction device, and when the unset socks are attached to the template from which the socks have been extracted by opening the perforated portion thereof, the operator's finger is pressed. When this work is repeated frequently by contacting the template plate (around 80 ° C.) that is not sufficiently cooled, the fingers become burned, giving physical pain to the operator.

[0005] From such a viewpoint, a template made of fiber-reinforced plastic has also been proposed.
Despite poor heat transfer, the heat capacity of the template (density 1.5-
1.6 g / cm ³ and specific heat 0.26 cal / g ° K)
Is shorter than a template using an aluminum alloy, so the temperature rise time of the template during steam setting is short, and the heat radiation time of the template is relatively short. Has the advantage of being cooled to some extent. However, compared to a template using an aluminum alloy, the sock setability is poor. That is, there is a drawback that the length of the socks is not finished according to the dimensions. Therefore, for example, if the template is entirely made of carbon fiber reinforced plastic, there is a problem that the material cost is high at present and the economics are not profitable.

[0006] Accordingly, it is an object of the present invention is, in Rukoto be used in combination with the aluminum alloy and the particular fiber-reinforced plastic
Ri, it is possible to set the heat capacity of the mold plate properly, with can improve the safety of the in handling, it is to provide a sock finishing mold plate which can achieve an improvement in work efficiency.

[0007]

Means for Solving the Problems The present invention according to the hosiery finishing mold plate against the sides of the aluminum alloy core material, it
Glass fiber reinforced plastic layer and carbon fiber reinforced plastic
And at least two fiber reinforced plastic layers formed by sequentially laminating a stick layer, and the one of the glass fiber reinforced plastics in contact with the aluminum alloy core material has a coefficient of thermal expansion of 2 × 10 ⁻⁶ / ° C. or more. It is characterized in that it is set within the range of 22 × 10 ⁻⁶ / ° C. or less .

[0008] In the above sock finishing template, aluminum
Between the aluminum alloy core and the glass fiber reinforced plastic layer
If you provide an epoxy film adhesive layer and join
It is suitable .

As a sock finishing template, aluminum foil is used.
Layer of carbon fiber plastic on the surface of
And the aluminum alloy core material and carbon fiber plastic
Electric corrosion prevention made of electrically insulating material between the stick layer
A structure in which a layer is provided can also be employed .

[0010]

According to the sock finishing template of the present invention, aluminum
Glass fiber reinforced to the surface of the aluminum alloy core material
Plastic layer and carbon fiber reinforced plastic layer
At least two layers of fiber-reinforced plastic
By forming a layer, the fiber reinforced plastic
Fiber reinforced plastics while taking advantage of sticks
Problems such as heat capacity, rigidity, deformation, etc.
Improves safety during handling and improves work efficiency.
The above can be achieved .

That is, in the present invention, the core material is
By using a Luminium alloy, conventional aluminum
Close to the heat capacity of the template made of
Can be increased .

Then, the surface is made of fiber reinforced plastic.
By using carbon fiber reinforced plastic,
Equivalent or similar to a conventional aluminum alloy template
Greater rigidity is obtained, and the template
Deformation can be suppressed .

Further , in the present invention, the aluminum alloy
Has a coefficient of thermal expansion of 22 × 10 ^-6 / ° C.
The coefficient of thermal expansion of fiber-reinforced plastic is -0.5 × 10 ^-6
/ ° C, significantly different from heat cycle in steam set
As a result, thermal stress is generated between the layers, and the carbon fiber reinforced
The plastic is easily peeled off from the aluminum alloy. This
Therefore, the coefficient of thermal expansion within the range of the coefficient of thermal expansion of each layer (12
× 10 ^-6 / ° C) glass fiber reinforced plastic
Is disposed between the respective layers, whereby between the respective layers
Can reduce the thermal stress value during thermal cycling
You .

As described above, the use of the electrically insulating glass fiber reinforced plastic can solve the problem of electrolytic corrosion occurring between the contact surfaces between the aluminum alloy and the carbon fiber reinforced plastic. In this case, in order to increase the durability of the template , an adhesive layer ( eg , an adhesive layer) is interposed between the aluminum alloy and the glass fiber reinforced plastic.
For example, it is preferable to provide an epoxy-based film adhesive ).

Therefore, according to the present invention, the cost of the sock finishing template is reduced from only the carbon fiber reinforced plastic by using the expensive amount of carbon fiber reinforced plastic only for the surface layer of the template. Can be greatly reduced as compared with

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a sock finishing template according to the present invention will be described in detail with reference to the accompanying drawings.

Embodiment 1 FIG. 1 shows a front view of a finishing template for a steaming set of boots. Therefore, first, a prepreg is prepared by impregnating an uncured epoxy resin into a woven fabric of carbon fiber and a woven fabric of glass fiber, and the obtained fiber-reinforced plastic is made of a 2 mm-thick aluminum alloy (A5052P) as a core material. 2, a glass fiber reinforced plastic 12 and a carbon fiber reinforced plastic 14 are laminated on both sides in this order as shown in FIG. The shape at this time may be the shape of the final template, or may be simply a plate shape.

Thereafter, the temperature is 180 ° C., the pressure is 5 kg / cm.
^{At 2} , the resin is cured and finished to the final template shape as shown in FIG. As a result, the aluminum alloy core material 1
The thickness of the glass fiber reinforced plastic 12 was 0.1 mm, the thickness of the carbon fiber reinforced plastic 14 was 0.2 mm, and the total thickness of the sock finishing template was about 2.6 mm.

Embodiment 2 In the laminated structure of Embodiment 1, the aluminum alloy core material 1
An epoxy-based film adhesive 16 having a thickness of 0.05 mm was provided between the glass fiber reinforced plastic 12 and the glass fiber reinforced plastic 12 to obtain a laminated structure shown in FIG. The curing conditions of the resin were the same as in Example 1, and as shown in FIG. As a result, a sock finishing template having a total thickness of about 2.7 mm was obtained.

Example 3 A prepreg was prepared by impregnating a carbon fiber fabric with an uncured epoxy resin, and the obtained carbon fiber reinforced plastic 14 having a thickness of 0.2 mm was replaced with an aluminum alloy (A5052P) having a thickness of 2 mm. ) As a core material 10, as shown in FIG. 4, laminated on both sides via an epoxy-based film adhesive 16 having a thickness of 0.05 mm.

Thereafter, the temperature is 180 ° C., the pressure is 5 kg / cm.
^{At 2} , the resin is cured and finished to the final template shape as shown in FIG. As a result, a sock finishing template having a total thickness of about 2.5 mm was obtained.

Comparative Example A prepreg was prepared by impregnating an uncured epoxy resin into a woven fabric of carbon fiber, and the obtained carbon fiber reinforced plastic 18 was molded. Laminated and configured, temperature 180 ° C, pressure 5Kg
/ Cm ² , the resin was cured. In this case, the thickness of the carbon fiber reinforced plastic 18 is 0.4 mm / layer,
By laminating the layers of the carbon fiber reinforced plastic 18, a laminate having a total thickness of 2.8 mm was obtained.

Thereafter, the laminate thus obtained was formed into the shape of a template shown in FIG. 1 to obtain a template for sock finishing.

Therefore, first, various characteristics of the template obtained in each of the above embodiments and a conventional aluminum alloy (A5052) were used.
The measurement results of various characteristics when comparing the mold plate (thickness: 2.5 mm) made of P) and the comparative example are as follows.

1. Thermal cycle test Each of the sock finishing templates obtained in Examples 1, 2 and 3 was 3
The pieces were alternately immersed in air and boiling water, and the peeling state between the aluminum alloy core material and the fiber-reinforced plastic was observed. Table 1 shows the measurement results of the average number of cycles up to the peeling state.

[0026]

From the results shown in Table 1, it was confirmed that the template of Example 2 having a configuration in which the coefficient of thermal expansion was gradually changed had excellent characteristics in durability.

[0028] 2. Surface Temperature The surface temperature of the template of Example 1 and the template of the conventional aluminum alloy was measured under the following conditions.
FIG. 6 shows the measurement results.

Heating conditions: 60 sec. Heating temperature: 115 ° C. As is clear from FIG. The surface temperature after that was 63 ° C. for the template of Example 1, and 88 ° C. for the template made of the conventional aluminum alloy, and a temperature difference of 25 ° C. occurred between the two. From these results, according to the template of the embodiment of the present invention, the cooling ability on the surface of the template was
In this regard, it was confirmed that the risk of burns to workers was reduced.

[0030] 3. Setability The template of Example 1, the template made of the conventional aluminum alloy, and the template of the comparative example were each observed for settability in a normal steam set cycle. As an index of setability, the width dimension of socks after steaming set,
It was evaluated by dividing by the width of the template. Table 2 shows the results of measuring this index for each template.

[0031]

From the results in Table 2 above, the socks
Converting the shrinkage at the time of molding, 0.06,
0.11 and 0.06. Therefore, the template of Example 1 was set similarly to the template of the conventional aluminum alloy .
, It was confirmed that it was about twice as good as the template of the comparative example .

[0033] 4. Manufacturing Cost The template according to the present example can achieve a significant reduction in material costs as compared with the template made of carbon fiber reinforced plastic of the comparative example. In addition, since the template of the present embodiment uses an aluminum alloy as a core material, it is possible to reduce the time required for laminating the fiber-reinforced plastic, and after finishing the shape in advance to the shape of the final template, the resin Can be laminated and hardened, the number of processing steps and finishing steps after molding can be greatly reduced, and a product that can be totally competed with a template made of a conventional aluminum alloy can be obtained.

[0034]

[Effect of the Invention] As apparent from the above-described embodiments, according to the hosiery finishing die plate of the present invention, against the both sides of the aluminum alloy core material, glass fiber reinforced plastic, respectively
Layer and carbon fiber reinforced plastic layer
Forming a fiber-reinforced plastic layer at least two layers of
And the one of the glass fiber reinforced plastics in contact with the aluminum alloy core material has a coefficient of thermal expansion of 2 × 10 ⁻⁶ / ° C. or more.
^Is set to be within the range of 22 × 10 ^-6 / ° C.
Thereby , problems such as heat capacity, rigidity, deformation (peeling) and the like in the case of using fiber reinforced plastics can be solved, and safety in handling can be improved and work efficiency can be improved. That is, using an aluminum alloy, a fiber reinforced plastic layer can be used most economically, and a template having sufficient strength and rigidity and excellent thermal characteristics can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a sock finishing template according to the present invention.

FIG. 2 is a cross-sectional view showing one embodiment of a laminated structure of a sock finishing template according to the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the laminated structure of the sock finishing template according to the present invention.

FIG. 4 is a sectional view showing still another embodiment of the laminated structure of the sock finishing template according to the present invention.

FIG. 5 is a cross-sectional view showing a laminated structure of a conventional sock finishing template.

FIG. 6 is a temperature characteristic curve diagram comparing the surface temperatures of a template for socks finishing according to an example of the present invention with a template of a conventional aluminum alloy.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Aluminum alloy core material 12 Glass fiber reinforced plastic 14 Carbon fiber reinforced plastic 16 Epoxy film adhesive 18 Carbon fiber reinforced plastic

Claims (1)

(57) [Claims] 1. A against both side surfaces of the aluminum alloy core material,
Each layer of glass fiber reinforced plastic and carbon fiber reinforced
At least two layers sequentially laminated with
The one of the glass fiber reinforced plastics which forms the fiber reinforced plastic layer and is in contact with the aluminum alloy core material has a coefficient of thermal expansion of 2 × 10 ^-6 / ° C or more and 22 × 10 ^-6 / ° C or more.
A sock finishing template which is set to fall within the following range.