KR100871450B1 - manufacturing method of a kitchen utensil having a gap and press machine thereof - Google Patents

Abstract

The present invention relates to a method for manufacturing a food utensil formed with a space portion that can be securely fixed to the handle to the main body of the food utensils and a food portion formed sequentially to produce such a food utensil, and a press device suitable therefor.

The structure of the food utensil formed with a space portion of the present invention is a food utensil consisting of a body formed of a metal material with a space formed therein, a shovel fixed to the bottom of the body by welding, and a handle formed in series with the body on the upper portion of the body. In the structure of, characterized in that consisting of a fixed jaw formed in the body portion is formed the handle, the attachment portion formed in series with the body on the upper portion of the fixing jaw, the handle fixed to the attachment portion through the fixing jaw do.

In addition, in order to produce the food utensils formed with the above-mentioned space portion is formed in the order of cutting step, swaging treatment step, press working step, welding step, finishing step can be firmly fixed to the tool body and the handle of different materials.

In particular, in the above-mentioned press working step, it is possible to provide a press device suitable for this working step, which simplifies the manufacturing process and at the same time has an advantage in mass production.

The food utensil produced by the manufacturing method as described above has an empty space portion formed in the inner body, and has a characteristic that the handle can be firmly fixed to the food utensil by forming a fixed jaw to which the handle can be fixed to the empty space portion, The body and the handle of the food utensils can use different materials, respectively, to provide a beautiful and high-quality food utensils.

Swaging, press processing, handle member, heat treatment process, fixing jaw, tool body

Description

Manufacturing method of food utensils with a space part and a press machine suitable for the same {manufacturing method of a kitchen utensil having a gap and press machine

1 is a perspective view showing an embodiment of a food utensil having a space portion of the present invention;

Figure 2a to 2e is an embodiment showing sequentially the manufacturing process of the food utensil formed with a space portion of the present invention,

3 is a cross-sectional view showing a press device used in the pressing step of the manufacturing process of the present invention.

<Description of the symbols for the main parts of the drawings>

1 shovel 2 body

3: fixing jaw 4: attachment part

5: handle 6: lozenge bone formation

7: weld 10: cutlery

20: upper frame 30: lower frame

21: pressing projection 22: release projection

23: fixing screw 24: fixing plate

The present invention relates to a food utensil such as a spoon, fork or knife, and more particularly, a food utensil having a space portion in which a handle can be firmly fixed to the food utensil body, and a food having a space portion for sequentially producing such food utensils. It relates to a method for producing a tool and a press machine suitable for the same.

Conventionally, since food utensils are generally made of metal, great restrictions have been placed on forming handles.

That is, in the case of using a metal material such as the body of the handle, a predetermined pattern was used by pressing the handle directly on the handle part in the manufacturing process of the food utensils.

In the case of using a material different from the food utensil, the handle had to be formed separately to form a structure that is combined with the utensil body.

Therefore, in the former case, since the handle pattern is formed by press working, it is difficult to provide various forms of decoration due to the nature of the machining process, and in the latter case, when the structure combined with the tool body is not strong, There was a problem that the handle portion is separated when used for a long time.

Recently, in order to reduce the weight of metal utensils, a technology of swaging (rotating forging treatment) has been developed so that an empty space part is formed inside, and the product has a high quality food utensil due to the beautiful effect of forging treatment. I could make it.

However, in the case of the food utensils formed with the empty space as described above, it is necessary to produce a high-quality food utensil by configuring the handle with a different material as described above,

Since the inner body forms an empty space, the tool body is not strong, so there is a difficulty in the structure for fixing the handle.

The present invention is to solve the above conventional problems,

An object of the present invention is to provide a method for manufacturing a food utensil formed with a space portion easy to form a fixing jaw for fixing the handle portion during manufacture by the swaging method (rotational forging) in order to manufacture a body in which the empty space is formed. .

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Another object is to provide a press machine suitable for use in the pressing step of the method for producing a food utensil having the above-mentioned space portion.

The food utensil produced by the manufacturing method as described above has an empty space portion formed in the inner body, and has a characteristic that the handle can be firmly fixed to the food utensil by forming a fixed jaw to which the handle can be fixed to the empty space portion, The body and the handle of the food utensils can use different materials, respectively, to provide a beautiful and high-quality food utensils.

The structure of the food utensil having a space portion of the present invention for achieving the above object is a body made of a metal material with a space portion therein, the shovel portion fixed by welding to the lower end of the body, and the body is connected to the upper portion of the body In the structure of the food utensil composed of the handle is formed,

And a fixing jaw formed at the body portion where the handle is formed, an attachment portion formed successively with the body on the upper portion of the fixing jaw, and a handle fixed to the attachment portion through the fixing jaw.

In addition, the method for manufacturing a food utensil having a space for manufacturing the food utensils is a cutting step of cutting a pipe having an empty inside to a predetermined size, and using the pipe forming machine to form the body of the food utensils after the cutting process Swaging on the bottom and top of the body to form a lozenge forming portion at the position where the handle is fixed; And welding step of welding the insert to the lower end of the body after the press working, the insert to maintain the spoon shape, and after the welding step to fix the handle around the fixing jaw, polishing operation such as polishing process Characterized by consisting of the finishing step is completed by performing.

In addition, the apparatus used in the pressing step of the manufacturing method of the food utensils,

Upper and lower molds formed with pressing protrusions at the lower left and right sides of the mold, the lower mold coupled to the upper mold, and the lower mold coupled to the fixing plate through the elastic member and the fixing screw at the lower end, and the position of the fixing plate corresponding to the lower mold of the lower mold. It is characterized in that the press device is composed of a release projection formed in the.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

First, look at the structure of the food utensil formed with a space portion by FIG.

In the above drawings, a cutlery is shown as a food utensil, but the same applies to a food utensil such as a ladle, a fork or a knife.

In the case of the cutlery 10, the insertion part 1 is formed in the lower part, and the body 2 fixed by welding is formed in this insertion part 1.

The body 2 is composed of a metal material having a space portion formed therein, and an upper portion of the attachment portion 4 is continuously formed through a fixing jaw 3 formed at a right angle.

And the handle (5) attached to the attachment portion 4 is completed by the interference fit or fixed through the bond or the molten material on the basis of the fixing jaw (3).

That is, when the handle 5 is made of a decorative metal material, the fitting fits and is fixed. In the case of a wood or a light weight material, it is fixed using a bond. When the molten material is melted, the molten material is melted and attached to the attachment part 4 based on the fixing jaw 3, and then the handle 5 is fitted to fix the molten material.

The cutlery, which is a food utensil formed as described above, is made of a heavy metal material, but a space is formed in the body 2 so that it can be lifted lightly. The surface of the body is swaged (rotated forged) to reflect light to the outside. You can get a beautiful effect.

In addition, the handle 5 of the cutlery may be made of a different material, unlike metal, to enhance the quality of the product, and the handle 5 may be formed by forming a fixing jaw 3 that is difficult to form during the swaging process in the body where the space is formed. I can fix it firmly.

The manufacturing process of the food utensil having the space formed as described above will be described with reference to FIG.

The body of the food utensils can be produced by various molding methods, in the case of the present invention is characterized in that it is completed using the manufacturing process as shown in FIG.

In the following description of the present invention, when it is determined that the detailed description of the configuration and effects of the related known food utensils itself may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the terms to be described below are terms set in consideration of the manufacturing process in the present invention, which may vary depending on the intentions or customs of the producers and users of food utensils, and the definitions should be made based on the contents throughout the present specification.

1. Pipe cutting process

As shown in FIG. 2A, the raw material pipe is cut by a predetermined length to form a pipe having a predetermined diameter into the body 2 of the food utensil.

2. Swaging treatment step

(1) primary swaging

Swaging the body (2) of the lower end (2) of the food utensil using a pipe forming machine to form a narrow neck portion connected to the shovel (1).

At this time, the pipe forming machine used is a device such as Utility Model Publication No. 1984-664 (hereinafter referred to as pipe forming machine), and when the motor rotates inside, the rotating shaft rotates and several rollers are installed between the other ends. Due to the punching force of the bearing, the forging operation is performed while the diameter is sequentially formed in a circular shape.

By performing such a forging operation (swaging) to give the inclination to the lower end of the body 2 as shown in FIG. .

(2) second swaging

The lower forged body is then placed in the opposite direction to the pipe forming machine to form the upper attachment portion 4 of the body 2, which is fixed to the handle 5, and the lower portion of the upper portion 4 of the body is angled. It is made large so that the lozenge formation part 6 may hold | maintain.

The lozenge forming portion 6 is to form a fixing jaw (3) is fixed to the handle (5) through a press working to be described later.

3. Press processing step

Next, press machining is performed to form the fixing jaw 3 in the lozenge forming part 6 as shown in FIG. 2C, and then the fixing jaw 3 is processed flat through lathe processing. At this time, the fixing jaw (3) may be formed so as to be bonded by processing the shape slightly concave with respect to the horizontal plane.

In this way, after the press working, the fixing jaw 3 is in a flat state through the lathe processing, and the attaching portion 4 formed continuously on the fixing jaw 3 is a cylindrical state and is attached to the handle to be described later. Becomes

4. Welding step

 In the state as shown in FIG. 2C, the insert 1 is welded to the lower end of the body 2, the insert is processed to maintain a spoon shape (press processing), and the welded part 7 and the body are polished to the next process. Proceed.

5. finishing process

After finishing the work to fix the handle (5) around the fixing jaw (3) in the finishing step, the polishing process such as polishing process is completed.

At the time of fixing the handle 5, the interference fit or bond or the molten material is applied to the attachment portion and the fixing jaw as described above, and then the handle 5 is inserted and fixed.

The finished food utensils (10) as described above can be given an appropriate weight when eating the food inside the empty space, the handle is transferred to the upper portion (11) different from the body of the food utensils, so that various shapes and The shape can be given.

In addition, the present invention is characterized in that the press unit as shown in Figure 3 is used in the pressing step used in the method for producing a food utensil.

3 is a cross-sectional view showing a press apparatus used in the manufacturing method of the present invention.

Press apparatus is composed of the upper mold 20 and the lower mold 30, the lower mold 30 is a mold formed under the handle of the food utensils, the upper mold is a mold formed on the handle portion.

Pressing protrusions 21 are formed on the left and right sides of the lower end of the mold of the upper mold 20, and are configured to be capable of vertical movement as a hydraulic device (not shown).

And the lower end of the mold 30 is coupled to the fixing plate 24 through the elastic member 26 and the fixing screw 23, the fixing plate 24 is fixed to the ground 25 through the fixing screw 23 have.

As the elastic member 26, a cushion member made of spring or urethane material can be used.

In addition, the release protrusion 22 is formed at the position of the fixing plate 24 corresponding to the lower end of the mold 30 is configured to be easily separated from the article in the mold.

The press machine as described above is used in the pressing step of the manufacturing method of the above-mentioned space portion formed food utensils.

That is, as shown in FIG. 2B, a lozenge forming part 6 is formed in the tool body subjected to the primary and secondary swaged treatments, and the tool body 2 having the lozenge forming part 6 is formed in the lower mold (see FIG. 3). 27) When the hydraulic device is operated to press the lower frame 30 with the upper frame 20 to remove the upper frame 20, the fixing jaw 3 and the fixing jaw as shown in FIG. The attachment surface 4 which is formed successively is formed.

At this time, the pressing protrusion 21 of the upper frame presses the tool body so that the fixing surface of the fixing jaw 3 can be perfectly formed as a horizontal state.

In addition, if the upper frame 20 is removed after the press operation, the elastic member 26 receiving the elastic force by the upper frame is returned to its original position, and the container body 2 inserted in the lower frame 30 is separated from the outside. At this time, the detaching protrusion 22 applies a repulsive force to the container body 2 to facilitate the detachment of the outside.

As described above, the present invention can easily form a fixed jaw coupled to the handle on the body when the food utensils are manufactured by using a body having an empty space portion, so that the handle separately manufactured can be manufactured with high quality and high quality.

For example, a handle can be made of a material different from that of the tool body, such as transfer paper treatment in wood or ceramic.

And in order to produce a food utensil formed with an empty space portion formed in the cutting step, swaging treatment step, press processing step, welding step, finishing step in order can be firmly fixed to the tool body and the handle of different materials.

In particular, in the above-mentioned press working step, it is possible to provide a press device suitable for this working step, which simplifies the manufacturing process and at the same time has an advantage in mass production.

In the present invention, the food utensils in the drawings are limited to the shape of a cutlery, but the same applies to the fork, knife and cooking utensil handles.

It is to be understood that the invention is not limited to the specific forms mentioned in the above description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. do.

Claims (4)

delete A cutting step of cutting the pipe having a predetermined size into a predetermined size; A swaging treatment step of forming a lozenge forming part 6 at a position where the handle is fixed by swaging the lower and upper ends of the body by using a pipe molding machine to form the body of the food utensils after the cutting process; A press working step of pressing the rhombic forming part 6 formed in the swaging process step so that the fixing jaw 3 to which the handle is fixed is formed; A welding step of welding the insert 1 to the lower end of the body 2 after the press working, and processing the insert to maintain a spoon shape; Fixing the handle (5) around the fixing jaw (3) after the welding step, the manufacturing method of the food portion formed with a space portion, characterized in that the finishing step is completed by performing a polishing operation such as a polishing process. The method of claim 2, The swaging process step is the first swaging step of forming the first water in the impure fraction state in which the upper body 2 is larger by giving a larger inclination angle as the upper portion of the body 2 is inclined, and The second forging step is characterized in that the lower forged body is put in the opposite direction to the pipe forming machine to form a large angle at the bottom of the upper end (4) of the body to maintain the lozenge forming portion (6) Method for producing a food utensil having a space portion. Upper and lower molds formed with pressing projections 21 on the left and right sides of the mold, Is coupled to the upper mold 20, the lower mold 30 is coupled to the fixed plate 24 through the elastic member 26 and the fixing screw 23 at the bottom, Composed of a release protrusion 22 formed in the position of the fixing plate 24 corresponding to the lower end of the mold 30 of the lower mold 30 to squeeze the lozenge forming portion of the food utensil formed with a swaged space to form a fixed jaw Press apparatus, characterized in that.

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