KR101527393B1 - Boots manufacturing method - Google Patents

Abstract

The present invention relates to a manufacturing method of boots, which is allowed to sew cut raw materials of boots and to manufacture the same in a boot shape based on an improved existing method of manufacturing boots according to an adhesive method using metallic mold and adhesives, while cutting raw materials of boots according to parts of the boots, and is allowed to mix sulfur with the raw material and heat the same, thereby uniformly forming the thickness of fabric, making manufacturing process simple and increasing productivity while reducing cost of raw materials.

Description

{Boots manufacturing method}

In particular, the present invention relates to a method of manufacturing boots, and more particularly, to a method of manufacturing a boots, in which a boom is cut, a boom is manufactured according to a bonding method using a mold and an adhesive, The present invention relates to a new type of boots which can be manufactured with the same thickness of fabric and simplify the manufacturing process to increase the production amount and reduce the cost.

Registration No. 10-1132271 (Registration date: March 26, 2012) The manufacturing method of the boots is as follows.

A stiffener working step of cutting the outsole stiffener made of a reinforcing material for reinforcing the strength of the sole to a predetermined size corresponding to the reinforcing area on the outsole mold;

An adhesive layer forming step of forming an adhesive layer coated with an adhesive on one side of the processed outsole stiffener;

The other surface of the outsole stiffener on which the adhesive layer is formed is formed with a plurality of fitting grooves formed in the outsole stiffener so as to compress the rigid outsole stiffener on the upper surface of the sealing mold, A step of attaching and adjusting the position of the reinforcing member by adjusting and attaching means including a plurality of fitting pins protruded by being rounded and bent by a width to be press-fitted into the reinforcing member; And

And an injection molding step of integrally molding the injection material and the outsole stiffener by joining the mold and the body mold to the outsole mold to which the outsole stiffener is attached.

On the other hand, the chlorosulfonate polyethylene rubber composition having excellent chemical resistance in the registered patent No. 10-0720047 (registered on May 14, 2007) previously registered by the present applicant and the safety boot using the same,

2 parts by weight of 3C, 100 parts by weight of Dixie Clay, 30 parts by weight of A-2 oil, 2 parts by weight of TRA, 1 part by weight of DM, 2 parts by weight of PEG and 1 part by weight of stearic acid per 100 parts by weight of chlorosulfonate polyethylene rubber (CSM 40) And 4 parts by weight of magnesium oxide (MgO).

Meanwhile, in addition to the above-mentioned patented technologies, the boots are manufactured through the following processes in the majority of production sites, and the production process thereof will be described in detail with reference to FIG. 1 to FIG.

<Formation and Cutting of Rubber Fabric>

The natural rubber, the synthetic rubber and the chemical are kneaded for a predetermined time to form a rubber raw material, which is then passed through a pair of rollers to form a rubber sheet fabric.

The rubber sheet fabric thus constructed is used to form the respective parts of the front end protection rubber 4, the rear end protection rubber 2, the upper tape rubber 1, the lower tape rubber 4 and the sole 3 for forming boots To form several pieces.

 &Lt; Production of endothelium using a mold >

The inner surface of the metal mold having the boom shape is covered with the synthetic resin cloth to cover the outer surface of the metal mold.

<Preparation for attaching fabric>

The inner surface of the mold is covered with the inner surface of the mold, the adhesive is first applied to the outer surface of the inner surface of the mold, dried at room temperature, and dried in a second shot to prepare a rubber material smoothly adhered to the inner surface.

<Attachment of the endothelium and the outer skin>

 A trunk rubber, a waterproof insole, and a bulletproof window trimmed with the rubber fabric are adhered to the outer surface of the inner skin to form boots in a semi-processed state.

<Various ornaments attached>

Various kinds of ornaments such as a back drop, a corsage, and a sole are attached to the surface of the boots of the semi-processed state as described above.

<Vulcanization Treatment>

As described above, the boots to which the ornaments are attached are vulcanized through a thermal vulcanization process like a mold.

<Cleaning>

The surface of the vulcanized boots is washed to remove impurities and stabilize the surface.

<Separation of boots from molds>

Separate the boots from the mold.

<Hydraulic test>

Inspect the surface pressure of the boots by applying pressure to the inner surface of the separated boots.

<Packing>

Pack the finished boots and prepare for shipment.

However, in the conventional method of manufacturing boots, there is a problem that unevenness in surface thickness occurs due to partial stretching of the fabric by making the boot shape by increasing the fabric during the process of making the boot fabric using an adhesive, The process of attaching the rubber material to the rubber material is manually performed, which results in a problem that the daily production amount is reduced.

The present invention has been devised in order to solve the above-mentioned problems, and it is an object of the present invention to simplify the production process in manufacturing boots and to increase the daily production amount. In the course of attaching the rubber fabric to the outer surface of the inner skin, It is an object of the present invention to provide a new method of manufacturing a boots which can form the boots with a constant thickness by sewing and vulcanizing the boots, thereby preventing rubber cracking of the boots.

In order to achieve this object,

According to an aspect of the present invention,

(S1) of adhering a rubber sheet fabric for sheathing composed of a mixture of natural rubber and synthetic rubber to a synthetic resin sheet for an inner skin;

A fabric cutting step (S2) of cutting the bonded fabrics into respective parts;

A fabric stitching step (S3) of sewing each of the fabrics to form a boots;

A step S4 of attaching ornaments to cover the sewn boots with a blank, and attaching a back drop, a loin or a sole to the outer surface of the muff;

A vulcanizing step (S5) of vulcanizing the boots formed on the mold by heating;

And a finishing step (S6) of washing the vulcanized boots and separating the vulcanized boots from the molds, and performing a water pressure test and packaging.

As described above, according to the method for manufacturing boots according to the present invention, it is possible to shorten various processes for manufacturing boots, thereby simplifying the production of boots, thereby increasing the production amount and reducing the production cost of the boots .

Also, in forming the outer surface of the boots, the surface of the entire boots can be kept constant by vulcanizing the fabric in a sewing state where the outer fabric is not pulled and bonded, thereby preventing the boots from cracking due to the difference in surface thickness There is an effect that can be.

Fig. 1 is a perspective view of a conventional boot,
2 is a block diagram showing a conventional boom manufacturing method
3 is a block diagram showing a method of manufacturing a boots according to the present invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

3 is a block diagram showing a method of manufacturing a boots according to the present invention.

As shown in the drawings, the method of manufacturing boots according to the present invention is characterized in that the outer and inner skin fabrics constituting the boots of the boots are integrally bonded to each other, cut into individual components, sewed to form boots, It is possible to form the entire thickness of the boots uniformly, thereby preventing cracks or the like of the outer skin, and the production process can be remarkably shortened, which can be expected to increase the production amount, thereby reducing the manufacturing cost of the product .

The boots according to the present invention having the above-described features will be described in detail with reference to FIG.

<Fabric Adhesion Step> (S1)

A synthetic rubber sheet for a covering material and a synthetic resin sheet for an inner sheet made of synthetic resin are adhered with an adhesive by kneading natural rubber, synthetic rubber, softening agent, accelerator, dispersant and vulcanization accelerator, We make boar fabric by integrating.

&Lt; Fabric Cutting Step > (S2)

Using the bonded fabric, cut each piece into parts such as side plates and bottom plates that make up the boots.

<Fabric sewing step> (S3)

Sew the edges of each of the cut pieces to sew them together to form a boots.

The sewing step is the step having the greatest difference from the conventional method of manufacturing boots. In the conventional method, in adhering the outer skin to the outer surface of the inner skin covered with the metal mold, the outer skin is pulled and attached There is a problem in that the thickness of the outer skin of the portion where the toe is located is thin. However, as in the present step, each cut fabric is sewed to form a boom shape, thereby maintaining the same thickness of the entire boots.

&Lt; ornamental attaching step > (S4)

Each piece is sewn to form the shape of the boots, and then the outer surface of the outer surface is covered with the back side, the back side and the sole to complete the appearance of the boots.

&Lt; Vulcanization step >(S5);

The semi-manufactured article having the boom configuration as described above is placed on a metal mold and vulcanized by heating in a heating furnace (not shown) to improve elasticity of the rubber, slow aging, and minimize changes in volume even when deformed.

&Lt; Finishing step > (S6)

After the vulcanized boots as described above are separated from the mold, the surface is washed, and the boots are packed through the water pressure test to complete the boots.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

1: upper tape rubber 2: rear end protection rubber
3: Outsole 4: Base tape rubber
5: Shear protection rubber

Claims (2)

A fabric adhering step (S1) of adhering a rubber sheet fabric for sheathing and a synthetic resin sheet for an inner skin;
A fabric cutting step (S2) of cutting the bonded fabrics into respective parts;
A fabric stitching step (S3) of sewing each of the fabrics to form a boots;
Attaching ornaming the decorative boots to the mold and attaching various ornaments to the surface of the enclosure (S4);
A vulcanizing step (S5) of vulcanizing the boots formed on the mold by heating;
And a finishing step (S6) of washing the vulcanized boots, separating the vulcanized boots from the molds, and performing a water pressure test and packaging.
(S1) of adhering a rubber sheet fabric for sheathing composed of a mixture of natural rubber and synthetic rubber to a synthetic resin sheet for an inner skin;
A fabric cutting step (S2) of cutting the bonded fabrics into respective parts;
A fabric stitching step (S3) of sewing each of the fabrics to form a boots;
A step S4 of attaching ornaments to cover the sewn boots with a blank, and attaching a back drop, a loin or a sole to the outer surface of the muff;
A vulcanizing step (S5) of vulcanizing the boots formed on the mold by heating;
And a finishing step (S6) of washing the vulcanized boots and separating them from the mold,
And forming a boom shape by sewing the components of the fabric so that the surface thickness is uniform so that the boom surface is prevented from being split due to unevenness in thickness.

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