JP2017060456A - Method of manufacturing squid hook for squid-fishing hook - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing a squid-fishing hook, which enables the continuous and efficient execution of work for molding parts from a coil wire rod to a squid hook having acute parts at both ends, respectively.SOLUTION: A cut material of a predetermined size is formed from a coil wire rod A, and a squid hook semi-molding is formed by heading-molding an acute part in a step-by-step manner at one end of the cut material by a header 3. Subsequently, component rolling is applied to the other end of the squid hook semi-molding by a rolling machine 4 in a post-process to form the acute part and form a squid hook having the acute parts at both ends.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for manufacturing a squid needle in a squid fishing hook.

  Conventionally, as a method for producing a squid needle in a squid fishing hook, both ends of a wire made of carbon steel are sharpened by a grinder process, and a squid needle having a sharp portion at both ends is formed, and this is half-folded by a press. It was formed by bending it into a shade.

  Japanese Utility Model Publication No. 58-33883

  However, squid needles made of wire made of carbon steel have low strength and hardness, so that the sharp edges of both ends can be sharpened with a grinder during molding, but sparks are produced by this grinder processing. Occasionally, it may burn out in red, and the hardness of the pointed portion will be reduced, it will become softer and the penetration will be poor, and it has the disadvantage that it cannot withstand long-term use. In addition, even when the material is bent and formed into a shade shape, there are problems that the material is cracked or easily bent and deformed if it hits or catches a rock or object in use.

  Therefore, the present invention has been invented to solve the above-mentioned problems, and when forming sharp portions at both ends of the wire, the sharp portions are formed by combining the molding by the header and the rolling process by the rolling machine. This makes it possible to form a squid needle with a sharp, strong, hard, penetrating and durable tip, and continuously and efficiently from the coil wire to the squid needle with a sharp portion at both ends. Another object of the present invention is to provide a method for manufacturing a squid needle in a squid fish hook that can be quickly and easily performed.

  The invention according to claim 1 of the present application is a method for manufacturing a squid needle in a squid fishing hook which is used by sharpening both ends of a wire, half-folding it with a press, and further bending it into a shade. The wound coil wire was fed into one side of the header equipped with a preforming punch, finishing punch, and fixed die while being straightened by a material feeding mechanism through a straightening machine. A straight wire is cut into a predetermined size by a knife mechanism to form a cutting material, and then the cutting material is transferred to a front position of a die forming hole in the header by a chuck transfer device, and a preforming punch in the header The cutting material is inserted into the forming hole of the die so as to leave one end thereof, and is protruded from the die by the forming recess formed in the central portion of the preforming punch. The part is pre-forged into a tapered shape, and then the pre-forming punch is retracted from the taper-shaped part and moved parallel to the die to move the finish forming punch so that it matches the front position of the die forming hole. After the movement, the taper-shaped portion of the cutting material preliminarily formed by the finish forming punch is finish forged to form a squid needle semi-molded product having a sharp portion at one end, and thereafter, in the die The knockout pin pushes the squid needle half-molded product forward of the die and removes it from the die, and further, at the other end of the squid half-needle molded product, a rolling process is performed on the rolling machine to form a sharp part, Thus, squid needles having sharp portions at both ends are formed.

  According to the squid needle manufacturing method of the squid fishing needle of the present invention described above, a cutting material having a predetermined size is formed from the coil wire material, and a sharp portion is forcibly formed at one end portion of the cutting material by the header step by step. Form a molded product, and then, in the subsequent process, form a sharp portion by rolling the other end portion of the squid needle semi-formed product with a rolling machine to form a squid needle having sharp portions at both ends. Therefore, it is possible to eliminate the need to sharpen the ends of the wire with a grinder from the beginning as in the past, and as a result, it prevents the occurrence of sparks and high heat at both ends of the cutting material, and also wears the grindstone. It is possible to form a squid needle having a sharp portion that is strong and hard and has excellent penetration and durability. In addition, the molding operation from the coil wire to the squid needle having the sharp portions at both ends can be performed continuously and efficiently, and the squid needle can be mass-produced quickly and easily.

  In addition, according to the squid needle manufacturing method of the present invention, squid needles can be formed by forging molding using a header and rolling processing using a rolling machine, so that a high hardness wire such as a strong, hard and rust-resistant stainless steel wire or titanium wire. It is possible to easily form a squid needle using As a result, product quality and performance can be improved.

It is a schematic explanatory drawing of the manufacturing method of the squid needle in the squid fishing hook concerning this invention. It is a top view of the one side part of a header. It is a principal part longitudinal cross-sectional view of a header. It is a principal part longitudinal cross-sectional view at the time of the finish shaping | molding by a header. It is a schematic explanatory drawing of a rolling machine. It is a schematic explanatory drawing which shows the change from a cutting raw material to a squid needle. It is a front view which shows the bending state of a squid needle. It is a front view which shows the expanded state of a squid needle. It is a front view of a needle body. It is a front view of the whole squid fishhook.

  Hereinafter, the manufacturing method of the squid needle in the squid fishing hook concerning this invention is demonstrated based on figures.

  In FIG. 1, A is a coil wire appropriately coiled on a coil winder 1, 2 is a straightening machine for straightening the coil wire A, 3 is a header, 4 is a round die type rolling machine. .

  As shown in FIGS. 2 and 3, the header 3 includes a die 31 fixed to the body 30, a ram 32 that moves forward and backward with respect to the die 31, and a spare that is supported at the tip of the ram 32 so as to be vertically movable. A punch 33 for finishing, a punch 34 for finishing, a material feed mechanism 36 such as a feed roller for feeding a predetermined amount of a linear wire A forward from a quill 35 provided on one side of the die of the machine body 30, and a forward position from the quill 35. A knife cutting mechanism 37 that cuts the wire A fed in a fixed amount to form the cut wire B is provided.

  Inside the die 31, a knockout pin 38 is provided which becomes the bottom surface of the molding hole 31 a during molding and kicks the molded product forward of the die 31 after molding. A stopper 39 is provided in front of the quill 35 to determine the feed amount of the wire A. Further, the cutting wire B cut by the knife cutting mechanism 37 is transferred to the front position of the forming hole 31a of the die 31 by a raw material transfer chuck means or the like (not shown).

  As the rolling machine 4, a planetary type is used as shown in FIG. 5, and the rolling machine 4 is installed on the other side of the die 31 in the header 3. For example, a squid needle semi-molded product C, which will be described later, pushed out from the die 31 is sequentially inserted into an insertion port in the planetary rolling machine 4 by an appropriate transfer supply means such as a material transfer chuck means or a shooter (not shown). To be supplied. Note that the rolling machine 4 is not limited to the planetary type, and it is needless to say that a flat die type or a round die type using a roll may be used.

  Next, the manufacturing process of the squid needle X which has the sharp part X1, X2 used at the both ends used for the squid fishing hook 10 is demonstrated using the straightening machine 2, header 3, and rolling board 4 demonstrated above.

  First, the coil wire A wound by the coil winder 1 is straightened by the material feeding mechanism 36 through the straightening machine 2 to the straight wire A while being provided on one side of the die of the header 3. It is sent to. When the wire rod A fed into the quill 35 is fed further forward from the quill 35 and hits a stopper 39 provided at the front position, the feeding by the material feeding mechanism 36 is stopped at that time, and the stopped state is maintained. .

  Next, the knife mechanism 37 is actuated, and the wire A is cut into a predetermined dimension by the knife 37a to form a cutting material B as shown in FIG. In the figure, the length of each wire from the cutting material A to the final squid needle X is described shorter than that of the squid needle that is actually used, and the change in shape in the manufacturing process is drawn more easily. . Then, the cut material B cut to a certain size is transferred to the front position of the forming hole 31a of the die 31 in the header 3 by the material transfer chuck mechanism.

  Thereafter, the ram 32 is advanced to the die side and the cutting material B is fitted into the forming hole 31a of the die 31 by the preforming punch 33 so as to leave one end thereof, and formed at the center of the preforming punch 33. One end portion of the cutting material B protruding from the die 31 by the formed recess 33a is pre-forged into a tapered shape B1 as shown in FIG.

  Thereafter, the ram 32 is retracted from the die 31 and the pre-forming punch 33 is retracted from the taper-shaped portion B1, and the pre-forming punch 33 and the finish forming punch 34 with respect to the ram 32 as shown in FIG. And the finish forming punch 34 is moved so as to coincide with the front position of the forming hole 31 a of the die 31. After this movement, the ram 31 is advanced to the die side, and the taper-shaped portion B1 preliminarily formed of the cutting material B is further finish-forged by the finish forming punch 34, and one end as shown in FIG. A squid needle semi-molded product C having a sharp part C1 at the part is formed.

  Thereafter, the knockout pin 37 in the die 31 pushes the squid needle semi-molded product C forward of the die 31 and removes it from the die 31 as the finish molding punch 34 moves backward. The squid needle semi-molded product C pushed out from the die 31 is sequentially supplied by the material transfer chuck means so that the other end enters the insertion port in the planetary rolling machine 4. The finish forming punch 34 retracted by the ram 32 is retracted and then lowered to the original lower position, so that the preforming punch 33 faces the die 31.

  The squid half-needle molded product C supplied to the rolling machine 4 is subjected to rolling at the other end, and a sharp portion having the same size and the same shape as the previous one-end sharp portion C1 is formed. As a result, squid needles X having sharp portions X1 and X2 at both ends as shown in FIG.

  As described above, according to the squid needle manufacturing method of the squid fishing hook of the present invention, the cutting material B having a predetermined size is formed from the coil wire A and the sharpened portion C1 is formed stepwise on one end of the cutting material A by the header 3. The squid needle semi-molded product C is formed by forging and forming, and then the other end of the squid needle semi-molded product C is subjected to rolling with a planetary rolling machine 4 in the subsequent process to form a sharp portion X2. Since the squid needle X having the sharp portions X1 and X2 is formed at both ends, it is possible to eliminate the sharpening work of forming the both ends of the wire from the beginning with a grinder as in the prior art. It is possible to form a squid needle X having sharp portions X1, X2 that are strong, hard, and have excellent penetration and durability, while preventing the occurrence of sparks and high heat at both ends of the material and reducing the wear of the grindstone. . In addition, the molding operation from the coil wire A to the squid needle X having the sharp portions X1 and X2 at both ends can be performed continuously and efficiently, and the squid needle X can be mass-produced quickly and easily.

  Further, according to the squid needle manufacturing method of the present invention, the squid needle X can be manufactured by the forging forming by the header 3 and the rolling process by the rolling machine 4, so that the strong, hard and rust-resistant stainless steel wire, titanium wire, etc. A squid needle can be formed using a high hardness wire rod. As a result, it is possible to easily improve product quality and performance.

  On the other hand, in order to assemble the squid fishing hook 10 using the squid needle X manufactured as described above, it is half-folded with a press as shown in FIG. 7, and the sharp portions X1 and X2 side thereof as shown in FIG. Bend in a letter shape and expand. Thereafter, as shown in FIG. 9, assembling needle bodies 12 are formed in a shade shape so that about eight of them converge on the retaining ring 11 and the core rod is inserted inside. Then, for example, as shown in FIG. 10, the squid fishing hook 10 is assembled by inserting the core rod and the stop rod 16 together with the pseudo body 13, the core tube 14, the packing 15, and the like. In FIG. 10, reference numerals 17 and 18 denote threading rings.

  The squid fishhook 10 manufactured as described above can be widely used, for example, a pseudo squid fishhook having a shrimp shape for lures and a squid fishhook for ships.

10 Squid fishing hook A Wire rod B Cutting material B1 Preliminary taper shaped part C Squid needle semi-formed product C1 Finished taper shaped part (sharp part)
X Squid needle X1 Sharp part X2 Sharp part 1 Coil winder 2 Straightening machine 3 Header 4 Rolling machine 31 Die 31a Molding hole 33 Preforming punch 33a Molding recess 34 Finish molding punch 34a Molding recess 36 Material Feed mechanism 37 Knife mechanism 38 Knockout pin

Claims (1)

  A method for producing a squid needle in a squid fishing hook that is sharpened at both ends of a wire, half-folded with a press, and further bent into a shade shape. First, a coil-wound coil wire is fed into a material feed mechanism. The straight wire rod is fed into one side of the header equipped with a preforming punch, a finishing punch, and a fixing die while straightening the straight wire rod through a straightening machine, and the fed straight wire rod is predetermined by a knife mechanism. The cut material is formed by cutting into dimensions, and then the cut material is transferred to the front position of the die forming hole in the header by the chuck transfer device, and the cutting material is transferred into the die forming hole by the pre-forming punch in the header. The one end protruding from the die is preliminarily tapered to a taper shape by the molding recess formed in the central portion of the preforming punch and fitted so as to leave the one end. Forging, and then retreating the preforming punch from the tapered portion and moving it parallel to the die to move the finish forming punch so that it coincides with the die forming hole front position. Finished forging of the pre-formed taper-shaped part of the cutting material with a punch for forming a squid needle semi-molded product with a sharp part at one end, and then the knockout pin in the die is a squid needle semi-formed product Is pushed out in front of the die and taken out from the die, and in the subsequent step, the other end of the squid half-needle molded product is subjected to a rolling process with a rolling machine to form a sharp portion, thereby having a sharp portion at both ends. The manufacturing method of the squid needle in the squid fishing hook characterized by forming a squid needle.

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