KR101590886B1

KR101590886B1 - Reel drag manufacturing method of fishing and its manufacturing equipment

Info

Publication number: KR101590886B1
Application number: KR1020140155237A
Authority: KR
Inventors: 이봉진
Original assignee: (주) 에스알메탈
Priority date: 2014-11-10
Filing date: 2014-11-10
Publication date: 2016-02-02

Abstract

The present invention is directed to a method of manufacturing a drag for a fishing reel part and a device for manufacturing the same, characterized in that a circular portion (11A) having a plurality of wings (12) A material preparation step S10; The raw material 10A is cold-forged through the primary forging unit 100 to form a ring-shaped step 11A in the central part 11 and a step 11A is formed between the central part 11 and the wing part 12 A first forging step (S20) for forming the primary molded product (10B) by molding the groove (12A); The primary molded product 10B is cold-forged through the secondary forging unit 200 to press the inner circumferential surface of the step 11A to form the insertion groove 11B and the inner bottom surface of the insertion groove 11B A secondary forging step S30 for forming the secondary molded product 10C by molding the rectangular groove 11C; A trimming step (S40) of cutting the secondary molded product (10C) along the periphery of the wing (12) to form a tertiary molded product (10D); And a cutting step S50 of forming a finished product 10E by forming a through hole 11D through the rectangular groove 11C of the third molded product 10D. The dragging of the parts can be precisely manufactured while the structure is dense by the continuous cold forging, thereby shortening the manufacturing time of the product and improving the productivity.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drag reel manufacturing method,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a drag reel component for fishing and an apparatus for manufacturing the same, and more particularly, to a star drag (hereinafter referred to as " drag " The present invention relates to a method of manufacturing a drag reel component for fishing and an apparatus for manufacturing such a drag reel component.

The fishing reel is provided with a drag mechanism for braking rotation of the fishing line of the spool in the discharge direction so as to adjust the drag force. This drag mechanism causes the screw member And the drag force is adjusted as the frictional force of the friction mechanism is changed.

After a drag aluminum plate material among the fishing reel parts as described above is prepared and the prepared plate material is subjected to a shearing work process for cutting the prepared plate material using a cutter in accordance with the size of the drag part, the cut plate material is compressed and cut by a press machine .

However, when the drag is manufactured as described above, the amount of the material lost during the sharing operation in which the aluminum plate is cut to an appropriate size for the purpose of dragging is large. In addition, since the completion of the sharings varies greatly according to the skill of the worker, There is a problem in that the productivity of the product deteriorates because it takes a lot of time for the operation while requiring the skill level.

In addition, a defective product may be mass-produced due to a positional error during the process of shirring the plate material using a cutting machine and fixing the plate material for press processing, thereby increasing the manufacturing cost of the product.

KR 10-1041744 B1 KR 10-2014-0094421 A JP 2009-148173 A

Disclosure of Invention Technical Problem [8] The present invention has been devised in order to solve the problems of the conventional drag reel manufacturing method for fishing reel parts as described above, and it is possible to easily and accurately manufacture drag from fishing reel parts, And it is an object of the present invention to provide a method of manufacturing a drag of a fishing reel part and a manufacturing device thereof.

According to an aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising the steps of: preparing a raw material having a plurality of wing portions formed radially in a central portion of a pentagon; A first forging step for cold-forging the raw material through a primary forging unit to form a ring-shaped step at the center, and forming a groove between the central part and the wing to form a primary molded product; A secondary forging step of cold-forging the primary molded product through a secondary forging unit to form an insertion groove by pressing the inner peripheral surface of the step and forming a square groove on the inner bottom surface of the insertion groove, ; A trimming step of cutting a portion of the secondary molded product along the periphery of the wing to form a third molded product; And forming a through hole so as to penetrate the square groove portion of the third molded product to produce a finished product.

In addition, it is preferable that, in the second forging step, the serration portion is formed along the inner circumferential surface of the insertion groove to form the serration portion.

In the step of preparing the raw material, a heat treatment step of annealing and softening the raw material is performed; And a coating treatment step of coating the surface of the heat-treated raw material with a coating agent.

In the secondary forging step, a heat treatment step of annealing and softening the secondary molded product is performed. And a coating treatment step of coating the surface of the heat-treated secondary molded product with a coating agent.

On the other hand, it is more preferable that the tertiary molded product in the trimming step is subjected to T6 heat treatment.

The primary forging unit includes a lower mold having a seating portion on which the raw material is seated; The upper mold is vertically moved upward and downward through a central portion of the seating part, and protrusions forming a ring-shaped step are formed on the bottom surface of the lower mold. The upper mold may be provided with a pressing plate formed on a bottom surface of the upper mold with an arc groove formed to bend the upper surface of the raw material.

The secondary forging unit may include: a lower mold having a seating portion on which the primary molded product is seated; A punching protrusion which is moved up and down through a center portion of the seating portion to form the insertion groove, and a punching protrusion which is formed in the lower portion of the punching protrusion, And a pressing plate for pressing the upper surface of the primary molded article is provided on the upper mold.

On the other hand, in the drag manufacturing apparatus of the present invention, a raw material having a plurality of wing portions radially formed at the center of a pentagon is formed by forging to form a ring-shaped step at the center portion, and a groove is formed between the center portion and the wing portion A primary forging unit for forming a primary molded product; A secondary forging unit for forming an insertion groove by pressing the inner peripheral surface of the step of the primary molded product and forming a rectangular groove on the inner bottom surface of the insertion groove to form a secondary molded product; A trimming unit that cuts along the periphery of the wing portion of the secondary molded product to make a tertiary molded product; And a machining unit for forming a through hole so as to penetrate the square groove portion of the third molded product to produce an end product.

The present invention can easily and quickly produce a drag of a complicated shape by using a continuous cold forging method in manufacturing drag for a fishing reel part, It is suitable for mass production, and thus productivity is greatly improved.

The present invention can be easily cooled and forged by heat treatment prior to cold forging and is easy to demold from the mold after forging because the coating agent is applied to the surface. As a result, the continuous operation can be performed more quickly.

Fig. 1 is a configuration diagram showing an example of a method of manufacturing a drag for a fishing reel part of the present invention,
FIG. 2 is a view showing an example of a raw material preparing step and a second forging step of the present invention,
3A is a plan view showing an example of a raw material of the present invention,
FIG. 3B is a sectional view taken along line AA of FIG. 3A,
4A is a plan view showing an example of a primary molded product of the present invention,
4B is a sectional view taken along line BB of Fig. 4A,
5 is a sectional view showing an example of a primary forging unit of the present invention,
6A is a plan view showing an example of a secondary molded product of the present invention,
FIG. 6B is a cross-sectional view taken along line CC of FIG. 6A,
7 is a sectional view showing an example of a secondary forging unit of the present invention,
Fig. 8A is a plan view showing an example of the third molded product of the present invention,
FIG. 8B is a cross-sectional view taken along line DD of FIG. 8A,
9A is a plan view showing an example of the finished article of the present invention,
9B is a sectional view taken along line EE of Fig. 9A,
10 is a perspective view showing an example of the finished article of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a manufacturing method for manufacturing a drag in a fishing reel part and a manufacturing apparatus for the drag manufacturing method. The manufacturing method of the present invention includes a raw material preparation step (S10), a primary forging step (S20) , A secondary forging step S30, a trimming step S40, and a cutting processing step S50. In the following, each step will be described in detail.

a. The raw material preparing step (S10)

In the raw material preparing step S10, as shown in FIGS. 3A and 3B, a raw material 10A having five wing portions 12 radially formed in a central portion 11 having a pentagonal shape is prepared. In step S10, as shown in FIG. 2, a heat treatment step S11 for annealing and softening the raw material 10A so that primary forging to be described later can be easily performed is included.

And a coating step S12 for coating the surface of the raw material 10A with a coating agent so that the molded article can be easily demoulded in the forging unit after forging by the primary forging unit 100. [

b. The first forging step (S20)

In the first forging step S20, the prepared raw material 10A is placed in the primary forging unit 100 as shown in FIGS. 4A and 4B, and the primary molded product 10B is formed by cooling and forging. At this time, Like step 11A is formed in the central portion 11 of the central portion 11 and the wing portion 12 and at the same time a groove 12A having a predetermined depth is formed between the central portion 11 and the wing portion 12. [ In this process, the material milling part B is formed along the periphery of the central part 11 and the wing part 12 of the primary molded product 10B. The workpiece 10A having a relatively large volume compared to the workpiece 10A is formed into a predetermined dimension by forging, and the workpiece is pushed out of the mold while the workpiece shank B is subjected to a trimming step S40 Lt; / RTI >

5, the primary forging unit 100 of the primary forging step S20 includes a lower mold 110 in which a seating part 111 on which a raw material 10A is seated is formed and a lower mold 110 The lower mold 110 is vertically moved up and down through a central portion of the seat portion 111 and is moved up and down in the lower mold 110, A punching pin 112 having protrusions 112A protruding from the upper surface thereof is formed to form the step 11A of the shape.

The upper mold 120 is provided with a pressing plate 121 having an arc-shaped groove 121A formed on the bottom surface to bend the upper surface of the raw material 10A.

When the upper mold 120 is lowered in a state where the raw material 10A is seated on the seating portion 111 of the lower mold 110, the pressure of about 160 tons of the pressure plate 121 acts The raw material 10A is pressed and pressed by the seating portion 111 of the lower mold 11 to be shaped according to the shape of the seating portion 111. For this purpose, A groove corresponding to the shape of the wing portion 12 is formed in the portion 111. [

The bottom surface of the pawl 10A is pressed by the protrusion 112A of the punching pin 112 while the pawl pin 112 of the lower mold 110 protrudes upward to the upper portion of the mounting portion 11 of the punching pin 112, The primary molded product 10B having the step 11A of the shape is formed.

c. The second forging step (S30)

In the secondary forging step S30, the primary molded product 10B is cold-forged through the secondary forging unit 200 to form the secondary molded product 10C. By this process, as shown in FIGS. 6A and 6B, A predetermined depth of insertion groove 11B is formed along the inner peripheral surface of the step 11A of the insertion groove 11 and a rectangular groove 11C having a predetermined depth is formed on the inner bottom surface of the insertion groove 11B, The serration portion 11B 'is formed along the inner circumferential surface of the slit portion 11B.

The secondary forging unit 200 in the secondary forging step S30 includes a lower mold 210 in which a seating portion 211 on which the primary molded product 10B is seated is formed, The lower mold 210 is provided with a punching protrusion (not shown) which is moved up and down through a center portion of the mounting portion 211 to form an insertion groove 11B And a punching pin 212 having serration protrusions 212B formed on the outer circumferential surface thereof to form a serration part 11B 'along the circumference of the insertion groove 11B.

The upper mold 220 is provided with a pressing plate 221 for pressing the upper surface of the primary molded product 10B. At this time, on the bottom surface of the pressing plate 221, Shaped groove portion 221A is formed.

When the primary molded product 10B is seated on the seating portion 211 of the lower mold 210, the pressure plate 221 of the upper mold 220 is lowered to apply a pressure of about 160 tons The upper surface of the primary molded product 10B is pressed while the seating portion 211 is lowered and the punching pin 212 provided at the center portion of the seating portion 211 protrudes upward, 212 press the bottom surface of the primary molded product 10B to form the insertion groove 11B and the rectangular groove 11C.

Serration is formed on the inner peripheral surface of the insertion groove 11B by the serration protrusion 212B formed on the outer peripheral surface of the punching pin 212. [

After the secondary molded product 10C is produced by the secondary forging unit 200 as described above, the secondary molded product 10C is annealed and softened as shown in Fig. 2 (S31), and then the heat- (S32) and transferred to a trimming step (S40), which will be described later.

d. In the trimming step (S40)

In the trimming step S40, as shown in FIGS. 8A and 8B, the material bulge B generated in the molding process is cut by using a trimming unit (not shown) to form a tertiary molded product 10D, The molded third molded product 10D is subjected to T6 heat treatment and transferred to a cutting processing step S50 described later.

At this time, the T6 heat treatment means a state in which the cold processing is not performed after cooling by the solidification heat treatment, and the T6 heat treatment is carried out publicly, so a detailed description thereof will be omitted.

e. In the cutting step (S50)

In the cutting step S50, through-holes 11D are formed so as to penetrate the rectangular grooves 11C of the tertiary molded product 10D by using processing units such as a tapping machine, a milling machine, a lathe, At this time, blasting or coating operation is performed after the cutting is completed, whereby a drag of the fishing reel part as shown in Figs. 9A, 9B and 10 is produced.

On the other hand, in the manufacturing apparatus of the present invention, a raw material 10A having a plurality of wing portions 12 radially formed in a pentagonal central portion 11 is formed by forging, and a ring- shaped step 11A is formed in the central portion 11 A primary forging unit 100 for forming a primary molded product 10B by forming a groove 12A between the central part 11 and the wing part 12 and a step for forming a step 11A of the primary molded product 10B A secondary forging unit 200 for forming an insertion groove 11B by pressing the inner circumferential surface of the insertion groove 11B and forming a square groove 11C on the inner bottom surface of the insertion groove 11B to form a secondary molded product 10C, The trimming unit is cut along the periphery of the wing portion 12 of the secondary molded product 10C to form the tertiary molded product 10D and the through hole 11D is formed so as to penetrate the rectangular groove 11C portion of the tertiary molded product 10D. To form the finished product 10E.

INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is possible to easily and quickly produce a drag of a complicated shape by using a continuous cold forging method in manufacturing drag for a fishing reel part, The production time is shortened, which makes it suitable for mass production, thereby greatly improving the productivity.

10A: raw material 10B: primary molded product
10C: Secondary molded article 10D: Third molded article
10E: Finished product 11: Center
11A: Step 11B: Insert groove
11B ': Serration part 11C: Square groove
11D: through hole 12: wing portion
12A: groove 100: primary forging unit
110: lower mold 111: seat part
112: punching pin 112A: projection
120: upper mold 121: pressure plate
121A: groove portion 200: secondary forging unit
210: lower mold 211: seat part
212: punching pin 212: punching projection
212B: Serration projection 220: mold
221: pressure plate 221A:
B:

Claims

A method of manufacturing a drag in a fishing reel part,
A raw material preparing step (S10) of preparing a raw material (10A) having a plurality of wing parts (12) radially formed in a central part (11) of a pentagon;
The raw material 10A is cold-forged through the primary forging unit 100 to form a ring-shaped step 11A in the central part 11 and a step 11A is formed between the central part 11 and the wing part 12 A first forging step (S20) for forming the primary molded product (10B) by molding the groove (12A);
The primary molded product 10B is cold-forged through the secondary forging unit 200 to press the inner circumferential surface of the step 11A to form the insertion groove 11B and the inner bottom surface of the insertion groove 11B A secondary forging step S30 for forming the secondary molded product 10C by molding the rectangular groove 11C;
A trimming step (S40) of cutting the secondary molded product (10C) along the periphery of the wing (12) to form a tertiary molded product (10D);
And a cutting step (S50) of forming a finished product (10E) by forming a through hole (11D) through the rectangular groove (11C) portion of the third molded product (10D) Gt;

The method according to claim 1,
Wherein in the secondary forging step (S30), the serration portion (11B ') is formed by serration forming along the inner circumferential surface of the insertion groove (11B).

The method according to claim 1 or 2,
In the raw material preparation step (S10)
A heat treatment step (S11) of annealing and softening the raw material (10A);
Further comprising a coating step (S12) of coating the surface of the heat-treated raw material (10A) with a coating agent.

The method according to claim 1 or 2,
In the secondary forging step S30,
A heat treatment step (S31) of annealing and softening the secondary molded product (10C);
Further comprising a coating step (S32) of coating the surface of the heat-treated secondary molded product (10C) with a coating agent.

The method according to claim 1 or 2,
Wherein the third molded product (10D) in the trimming step (S40) is subjected to T6 heat treatment.

The method according to claim 1,
The primary forging unit (100)
A lower mold 110 in which a seating part 111 on which the raw material 10A is seated is formed;
And an upper mold 120 positioned above the lower mold 110 and operated to move up and down,
A protrusion 112A which forms a ring-shaped step 11A on the bottom surface of the raw material 10A is formed on the upper surface of the upper mold 110, A punching pin 112 protruding from the punching pin 112 is provided,
Wherein the upper mold (120) is provided with a pressing plate (121) formed with a groove-like groove portion (121A) forming a curved upper surface of the raw material (10A) Way.

The method according to claim 1,
The secondary forging unit (200)
A lower mold 210 in which a seating part 211 on which the primary molded product 10B is seated is formed;
And an upper mold 220 positioned above the lower mold 210 and operated to move up and down,
The lower mold 210 is provided with a punching protrusion 212A which is moved up and down through a central portion of the seating part 211 to form the insertion groove 11B, And a punching pin 212 is formed on the outer peripheral surface of the serration protrusion 212B,
Wherein the upper mold (220) is provided with a pressing plate (221) for pressing the upper surface of the primary molded product (10B).

1. An apparatus for producing a drag from a fishing reel part,
A ring-shaped step 11A is formed in the central portion 11 by forging the raw material 10A having a plurality of wings 12 formed radially in the pentagonal central portion 11, A primary forging unit (100) for forming a primary molded product (10B) by forming a groove (12A) between the wing (12) and the wing (12);
The inner peripheral surface of the step 11A of the primary molded product 10B is pressed to form the insertion groove 11B and the rectangular groove 11C is formed on the inner bottom surface of the insertion groove 11B to form the secondary molded product A second forging unit (200) for making the first and second forging units (10A, 10C);
A trimming unit which cuts along the periphery of the wing portion (12) of the secondary molded product (10C) to make a tertiary molded product (10D);
And a machining unit for forming an end product (10E) by forming a through hole (11D) through the rectangular groove (11C) portion of the third molded product (10D).

The method of claim 8,
The primary forging unit (100)
A lower mold 110 in which a seating part 111 on which the raw material 10A is seated is formed;
And an upper mold 120 positioned above the lower mold 110 and operated to move up and down,
A protrusion 112A is formed on the lower mold 110 at a central portion of the seating part 111 and is vertically moved up and down. The protrusion 112A forms a ring-shaped step 11A on the bottom surface of the raw material 10A. A punching pin 112 protruding from the punching pin 112 is provided,
The upper mold 120 is provided with a pressing plate 121 having an arc-shaped groove 121A formed on the bottom surface to bend the upper surface of the raw material 10A,

The secondary forging unit (200)
A lower mold 210 in which a seating part 211 on which the primary molded product 10B is seated is formed;
And an upper mold 220 positioned above the lower mold 210 and operated to move up and down,
The lower mold 210 is provided with a punching protrusion 212A which is moved up and down through a central portion of the seating part 211 to form the insertion groove 11B, And a punching pin 212 is formed on the outer peripheral surface of the serration protrusion 212B,
Wherein the upper mold (220) is provided with a pressing plate (221) for pressing the upper surface of the primary molded product (10B).