KR101557872B1

KR101557872B1 - Drawing forming apparatus for pipe plug terminal and pipe plug terminal using therof

Info

Publication number: KR101557872B1
Application number: KR1020150072100A
Authority: KR
Inventors: 김성환
Original assignee: 김성환
Priority date: 2015-05-22
Filing date: 2015-05-22
Publication date: 2015-10-06

Abstract

The present invention can reduce the manufacturing cost by reducing the material cost of the plug terminal when manufacturing the terminal used for the plug for 200 V, and it is possible to transfer the strip material in the longitudinal direction so as to improve the productivity through continuous automatic molding A pipe type plug terminal forming apparatus comprising a first die having a forming chip portion, a drawing die and a terminal cutting portion arranged in a line, and a second die having a seating portion corresponding to the first die, and a pipe type plug terminal .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pipe type plug terminal forming apparatus and a pipe type plug terminal using the same,

The plug has a terminal to which power is supplied by being inserted into the terminal hole of the socket, and the plug for 200V has a terminal in a bar shape.

1, the rod-like terminal 11 has a fastening hole (not shown) of the plug body 13 such that a front end portion having the hemispherical tip portion 12a is exposed outside the plug body 13 and a rear end portion is embedded inside the plug body 13A, and a wire 14 is connected to the rear end of each of the terminals.

The rod-shaped terminal 11 used in the general 200 V plug is composed of a brass round rod having a predetermined diameter and a predetermined length, the body 12 having the hemispherical tip 12a.

The most common method for manufacturing such a conventional rod-shaped terminal is a first cutting step of cutting a predetermined diameter and an entire length using a cutting machine such as a lathe by using a brass rod having an appropriate diameter as a material, a cutting step of cutting the hemispherical tip It is possible to form the predetermined wire connectors by a bore ring or a compression process in order to form a predetermined type of connection member for electrical connection to the electric wire at the rear end portion or to form a screw hole for the fixing screw at the side end , And then nickel plating is applied to the surface of the rod-shaped terminal thus manufactured, thereby completing the final step.

However, in the conventional method for manufacturing a rod-shaped terminal for a plug, in which the above-described brass rod is used as a molding material and a number of cutting processes are performed as main steps, a material loss due to cutting, a brass material as a whole terminal becomes high, There is a problem that the productivity is low as a whole and the manufacturing cost of the terminal is high.

As a conventional technique for solving the above problems, there is a method of manufacturing a rod-shaped electrode for a power plug and a mold, as disclosed in Japanese Patent Application No. 10-0475838 (registered on March 23, 2005)

In the conventional technique, the cut raw material pipe is inserted into a die having a hemispherical die head in an upright manner, and an upper end portion of the raw material pipe is bent at an angle around the upper end portion of the raw material pipe by a bending punch having a conical punch groove, And then finishing through a lapping punch having a hemispherical wrapping groove to produce a rod-shaped terminal of the plug.

However, in order to mold a brass pipe as a molding material into a hemispherical shape, the above-mentioned prior art requires a step of cutting a raw material pipe (brass pipe) in accordance with the standard before it is manufactured. There is a problem in that the productivity of the bar-shaped terminals deteriorates because manual operation for fitting the bar-shaped terminals into the grooves is required.

Accordingly, the present invention has been made to solve the above-mentioned problems,

In order to improve the productivity with the reduction of the material cost, a series of steps of automatically feeding the strip-shaped strip material, drawing it, and cutting the drawn terminal are automatically and continuously performed through one device A first mold having a forming chip, a drawing die, and a terminal cutting portion arranged in a line, and a second die having seating portions corresponding to the first die, And a pipe type plug terminal using the same.

The present invention also provides a method for manufacturing a strip-shaped plug, comprising: a first cutting portion for cutting a rim of a forming chip in a strip material so that plastic deformation of the strip material can be easily performed in the drawing processing portion, And a second cutting portion configured to cut the plastic deformation space portion of the plug terminal, and a pipe type plug terminal using the same.

In addition, in order to fix the pipe-type plug terminal to the fastening hole of the plug body, it is easy to mold the protruding portion protruding outward in the middle of the body, and the forming process of the protruding portion is performed at one time in a series of processing steps using the strip material Shaped plug terminals, a first forming section having a pressing-pressing section for plastic-deforming the cut molding chips into the shape of the pipe-type plug terminals so as to further improve the productivity by reducing the overall molding process of the pipe-type plug terminals, And a drawing processing portion formed by a second forming portion having a protruding pressing portion inserted into the inside of the molded body to press and protrude a part of the body outwardly, and a pipe type plug terminal using the same .

In order to achieve the above object, a pipe type plug terminal forming apparatus according to the present invention comprises:

Shaped plug terminal made of an integral body having a hemispherical tip,

Feeding means for feeding the strip material of the flat plate in the longitudinal direction between the first and second molds;

A die cutting portion for pressing and deforming the cut forming chip, and a terminal cutting portion for cutting the pipe type plug terminal plastic-deformed in the strip material in a row A first mold disposed; And

And a second die having first, second, and third mounting portions corresponding to the molding chip tack portion, the drawing processing portion, and the terminal cutting portion, arranged in a line.

In the pipe-type plug terminal forming apparatus according to the present invention,

The molding chip tack portion

A first cutting portion for first cutting the rim of the molded chip in the strip material,

And a second cutting portion that cuts the plastic deformation space part secondarily to the outside of the first cut formed chip.

The drawing processing unit

A first forming portion having a pressing pressing portion for pressing and plastic-deforming the cut forming die,

And a second forming part having a protruding pressing part which is inserted into the primary molded product which is plastically deformed in the first forming part and which press-presses and plastic-deforms a part of the primary molded product,

The protruding portion projecting outward is formed in the middle of the plastic-deformed integral body.

In addition, the pipe-type plug terminal according to the present invention

And an integral body having a hemispherical tip,

The integrated body is formed by drawing a strip material having a predetermined length and plastic-deforming the strip material, followed by cutting.

The pipe-type plug terminal forming apparatus and the pipe-type plug terminal using the same according to the present invention can reduce the material loss and the material cost burden compared to the bar type terminal through the conventional cutting process,

In particular, a series of processes for manufacturing pipe-type plug terminals by continuously punching, drawing and cutting the flat strip material are automatically performed in one device, thereby improving the productivity by about 3 to 4 times compared with the conventional cutting method It is a very useful invention that can expect effects.

The pipe-type plug terminal forming apparatus and the pipe-type plug terminal using the same according to the present invention are characterized in that the molding die tack part, the drawing processing part, and the terminal cutting part are included in one mold apparatus, The entire machining process and the machining time can be drastically shortened.

Also, the pipe-type plug terminal forming apparatus and the pipe-type plug terminal using the pipe-type plug terminal forming apparatus according to the present invention cut the plastic deformation space outside the rim of the molded chip in the strip material through the second cutting portion of the molded chip rubbing portion, Thus, there is an advantage that the resistance of the strip material pressed between the dies during drawing processing is reduced and canceled, so that drawing processing of the pipe-type plug terminal having a predetermined length is easy and quick.

In addition, the pipe-type plug terminal forming apparatus and the pipe-type plug terminal using the same according to the present invention have a configuration in which a protruding pressurizing portion is inserted into a plastically deformed primary molded product to introduce a second forming portion for protruding a part of the primary molded product outward, It is easy to work the protrusions for fixing and fitting the pipe-type plug terminals to the correct positions in the fastening holes of the plug body at the time of assembly, and such protrusion machining processes are simultaneously performed in one plug terminal forming apparatus, Can be reduced.

1 is a cross-sectional view schematically showing a plug in which a pipe-type plug terminal according to the present invention is assembled;
FIG. 2 is a plan view and a front view showing a strip material to be processed through a pipe-type plug terminal forming apparatus according to the present invention. FIG.
3 is a schematic front view of a pipe plug terminal forming apparatus according to the present invention.
FIGS. 4 and 5 are cross-sectional views schematically showing the first forming unit and the second forming unit of the drawing processing unit according to the present invention.
6 is a plan view schematically showing a slide block of a second forming part according to the present invention.
Figs. 7 and 8 are sample photographs of a pipe-type plug terminal forming apparatus according to the present invention.
9 is a view for explaining a rotatable conveying member according to the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the pipe-type plug terminal forming apparatus and the pipe-type plug terminal using the same according to the present invention, when it is specified for the sake of convenience, an unambiguous approximate direction reference is as shown in FIGS. 2 and 3, The direction in which the gravitational force is directed downward is set as it is in the direction as viewed in Fig. 3, and in the detailed description and claims of the invention relating to other drawings, unless otherwise specified, Describe the direction.

Hereinafter, a pipe type plug terminal forming apparatus according to the present invention and a pipe type plug terminal using the same will be described with reference to the accompanying drawings.

First, a pipe-type plug terminal forming apparatus according to the present invention is a device for molding a pipe-type plug terminal 11 comprising an integral body 12 having a hemispherical tip end 12a as shown in Fig. 1,

3 to 8, the feeding means 30 mainly for feeding the strip material 20 between the first and second dies 40 and 50, the punching, drawing, and cutting of the strip material 20, A first mold 40 for performing processing, and a second mold 50.

First, the strip material 20 used in the present invention is made of a material used as a conventional plug terminal such as brass, has a thin strip shape having a predetermined thickness, and has fixing holes 20a on both sides along the longitudinal direction Spaced apart and spaced apart,

The fixing holes 20a are formed in the fixing holes 20a so that when the first mold 40 is lowered after the transferring means 30 transfers the strip material 20 in a stepwise manner, So that the strip material 20 can be arranged at the right positions of the respective forming chip tacking portions 41, the drawing processing portion 42 and the terminal cutting portion 47.

The conveying means 30 of the present invention moves the strip material 20 up and away from the seating portion of the second metal mold 50 in a state where both ends of the strip material 20 are fixed, A transfer (not shown) such as a hanger that can be used can be used.

Next, the first mold 40 of the present invention is formed by pressing and fixing the strip material 20 together with the second mold 50, as well as a molding chip tack portion 41, a drawing processing portion 42, , And a terminal cutting portion (47) to plastic-deform the strip-like strip material (20) to process and form the pipe-type plug terminal (11).

To be more specific, first, the molded chip tack portion 41 of the present invention

A first cutting portion 41A for first cutting the edge of the shaping chip 21 in the strip material 20,

And a second cutting portion 41B for secondly cutting the plastic deformation space portion 23 to the outside of the first cut formed chip 21.

The first cutting portion 41A is for cutting the shaping chip 21 before it is deformed into the integral body 12 constituting the pipe type plug terminal 11 in the strip material 20,

The first and second molds 40 and 50 are constructed so that the first cutter (not shown), which punctures the semicircular rim 22 shown in FIG. 2, is moved up and down by the first mold 40, The first cutter cuts one side of the strip material 20.

In this case, according to the present invention, since the strip material 20 is transferred step by step and each process proceeds, the first cutter forming the first cutting portion 41A is formed by a pair of semicircular rims And the cutting operation of the first cutting portion 41A is continuously performed in the stepwise manner along the longitudinal direction of the strip material 20 so that the round shaping chip 21 is connected to the connecting portion 22a so as to be connected to the strip material 20. As shown in Fig.

The second cutting portion 41B is formed of a strip material 20 pressed between the first and second molds 40 and 50 when the forming die 21 undergoes plastic deformation in a drawing processing portion 42, By cutting the plastic deformation space portion 23 for preventing the plastic deformation space 23 from resisting,

A second cutter (not shown) in the form of perforating the semicircular space part shown in FIG. 2 is constructed to be moved up and down by the first mold 40. When the first and second molds 40 and 50 are closed The second cutter punches one side of the strip material 20 and cuts it.

When the second cutting portion 41B is continuously cut along the longitudinal direction of the strip material 20 in a stepwise manner, the second cutter may be formed in a shape of The plastic deformation space portion 23 is formed between both side ends of the strip material 20 to be fixed and the connecting portion 22a of the shaping chip 21 so that the shaping chip 42 causes the shaping chip 21 When the metal is press-fitted and tensioned, the connecting portion is brought in the direction of plastic deformation so that the plastic deformation is easily performed.

Next, the drawing processing section 42 of the present invention

A first forming portion 43 having a pressing pressing portion 43a for pressing and deforming the cut forming die 21,

And a protrusion pressing portion 45b which is inserted into the primary molded product 11A plastic-deformed in the first forming portion 43 and presses and plastically deforms a part of the primary molded product 11A, (44).

The first forming part 43 has a bar press pressing part 43a which is moved up and down by the first mold 40. The first and second molds 40 and 50 are press- The pressing surface of the chip 21 is pressed by the pressing pressing portion 43a to plastic-deform the molding die 21 of the circular plate into the integral body 12 having the hemispherical tip portion 12a.

It is also possible to plastic-deform the integral body 12 at one time by providing only one such first molded portion 43, but it is also possible to provide a plurality of first molded portions 43 in sequence to be disposed along the length of the integral body 12 It is more preferable to perform the plastic deformation step by step, and it can be confirmed that two first forming parts 43A and 43B are provided in Fig.

7 shows a sample photograph of the present invention. A plurality of first forming parts 43 are provided between a forming chip cutting part and a second forming part. The number of the first forming portions 43 may be varied when plastic deformation of the forming die 21 needs to be performed in several steps, such as when the forming die 21 has different sectional shapes.

The second molding part 44 is for molding the projecting part 12b for fixing the pipe type plug terminal 11 to the fastening hole 13A of the plug body 13. The first and second mold parts 40, ) Of the plastic molded body 11A is pressurized outward so that the protruded portion 12b protruded outward in the middle of the plastically deformed integral body 12 is formed.

Unlike the first forming portion 43, the second forming portion 44 is formed so that the direction of plastic deformation of the projecting portion 12b is the lateral direction of the integral body 12, not the longitudinal direction of the integral body 12,

A plurality of slide blocks 45 arranged radially to form a through hole 45a at the center while being inserted into the primary molded product 11A and having the protruding pressing portion 45b protruding outwardly,

A pressurizing section 46a having a diameter that is inserted into the primary molded product 11A through the through hole 45a and has a relatively small diameter at the front end narrowing portion 46a and a rear end wide portion 46b having a relatively large diameter, And a rod 46,

The rear end wide portion 46b presses the slide block 45 so that the protruding pressing portion 45b is opened and the protruding portion 12b is inserted into the primary molded product 11A, .

The slide block 45 is radially disposed in the first mold 40 and slides in the inward and outward directions with respect to the center through hole 45a. The slide block 45 is provided with an elastic body (not shown) And the protrusion pressing portion 45b is inserted into the hollow portion 11s of the primary molded product 11A when the first and second molds 40 and 50 are closed.

The pressing rod 46 is inserted into the primary molded product 11A while the first and second molds 40 and 50 are closed. In the initial insertion section, the shear narrowing portion 46a and the slide block 45 are not in contact with each other and the rear end wide portion 46b contacts the connecting piece of the slide block 45 in the latter half insertion portion, the slide block 45 is pressed outwardly due to the difference in diameters ,

The protruding pressing portion 45b presses the inner surface of the primary molded product 11A outward so that the protruding portion 12b is protruded and formed on the outer peripheral surface of the integral body 12. [

Here, the protrusion 12b is formed in the middle of the integral body 12, but does not mean a half of the total length of the integral body 12, but may be a predetermined height (height) formed on the hemispherical tip 12a .

The terminal cutting portion 47 of the present invention cuts the pipe type plug terminal 11, which has undergone plastic deformation in the drawing processing portion 42, with the shaping chip 21,

A third cutter (not shown) for cutting the central cutting portion 21a of the forming die 21 shown in Fig. 2 is constructed to be moved up and down by the first mold 40 so that the first and second dies The third cutter cuts the scrap of the molded chip 21 and the connecting portion of the integral type body 12, that is, the pipe type plug terminal 11,

Next, the second mold 50 of the present invention includes the first to third seats 41 corresponding to the molding die tab 41, the drawing processing portion 42, and the terminal cutting portion 47 of the first mold 40, 51, 52, and 53 are arranged in a line,

Supporting the other surface of the transported strip material 20 and allowing the molded scrap and the tubular plug terminal 11 to be molded and the appearance of the integral body 12 being discharged and plastically deformed.

The first and third mounting portions 51 and 53 corresponding to the molding chip tack portion 41 and the terminal cutting portion 47 are formed into a cylindrical discharge hole having a predetermined diameter and a predetermined length, &Lt; / RTI >

And the scrap and pipe type plug terminals 11 cut out from the molding chip tack portion 41 and the terminal cutting portion 47 can be discharged to the outside of the second mold 50.

The second seating portion 52 corresponding to the drawing processing portion 42 includes a cylindrical insertion groove 52a having a predetermined diameter and a predetermined length and having an appropriate insertion gap,

The outer shape of the integral type body 12 to be plastically deformed by the drawing processing portion 42 is formed,

The ejector 52b is provided at the lower portion of the insertion groove so as to move up and down in the insertion groove 52a.

In this case, the grooves corresponding to the protrusions 12b are formed in the insertion grooves corresponding to the second molding portions 44, so that the integral body 12 is dislocated by the ejector 52b in a detent manner .

2, the strip material 20 having passed through the pipe-type plug terminal forming device having such a configuration is formed by cutting the semicircular rim portion 22 along the feeding direction (longitudinal direction) of the strip material 20, The molded chip 21 cut with the plastic deforming space portion 23 surrounding the chip 21 and the semicircular rim portion 22, the molding chip 21 (s) with the integrally formed body 12 plastic deformed stepwise, Shaped plug terminals 11 are cut successively and are discharged to the outside of the first and second molds.

In the pipe-type plug terminal forming apparatus that cuts and plastic-deforms the strip material 20, the strip material 20 is fed step by step through the conveying means 30 so that each cutting and plastic deformation process is performed in one apparatus The productivity is improved and the molding of the protruding portion 12b which is difficult to protrude outside the integral body 12 due to the structure is performed through one device,

Since the pipe-type plug terminal 11 manufactured through such a pipe-type plug terminal forming apparatus has a reduced material loss and a material cost burden through the drawing process, the integral body 12 having the hemispherical tip end 12a has a manufacturing cost of the plug terminal And the effect of facilitating the assembly of the plug terminal through the projecting portion 12b is obtained.

As described above, the conveying means 30 of the present invention may be of a type in which the strip material 20 is detached from the second mold 50 and then conveyed or lowered to the next process position,

As shown in FIG. 9, the present invention introduces a rotatable conveying member 31 so that the strip material 20 can be easily separated, conveyed, and seated.

The rotary transfer member 31 of the present invention for this purpose

A rotating body 32 which rotates in a feeding direction (clockwise direction in the figure) of the strip material 20,

A telescopic type support rod 33 connected to the outer circumferential surface of the rotating body 32,

A guide protrusion 34a hinged to the end of the support rod 33 and protruding laterally and a retaining pin 34b protruded upward and inserted into the fixing hole 20a of the strip material 20 A rotary plate 34,

And a side plate 35 provided in the direction of the rotating body 32 and having a guide groove 35A in which the guide protrusion 34a is inserted.

The rotating body 32 is connected to the motor and rotates together with the supporting rod 33,

Since the rotation plate 34 hinged to the support rod 33 has the guide protrusion 34a confined in the guide groove 35A,

The length of the support rod 33 varies during the rotation of the rotating body 32 so that the rotary plate 34 rotates along the 'Kl' 'locus corresponding to the guide groove 35A.

A stopper (not shown) is provided at a hinge portion (not shown) for connecting the rotary plate 34 and the support rod 33 to limit the rotation angle of the hinge portion. When the rotary member 32 rotates, The vertical movement and the horizontal movement trajectory are performed in a state in which the horizontal state is maintained at all times.

Accordingly, in accordance with the stepwise rotation of the rotating body 32,

When the first and second molds 40 and 50 are being closed and processed, the rotary plate 34 is positioned at the middle height of the first vertical portion 35a and the engaging pin 34b is inserted into the fixing hole 20a Waiting,

When the first and second molds 40 and 50 are opened, the rotary plate 34 is lifted along the first vertical portion 35a to move the strip material 20 to the second mold 50, And then transversely moves along the first horizontal portion 35b to transfer the strip material 20 in stages,

When the first and second molds 40 and 50 are closed for processing, the rotary plate 34 moves down and transversely along the second vertical portion 35c and the second horizontal portion 35d, The rotary plate 34 is separated from the strip material 20 by the intermediate height of the second vertical portion 35c and the strip material is seated on the second metal mold 50. The rotary plate 34, So that the engaging pin 34b is inserted into the fixing hole 20a to prepare for the next transfer.

When the rotatable conveying member 31 including the length-changeable support rod 33 and the rotating plate 34 rotating in a horizontal state is introduced, the conveying member 30 can be moved up and down and left and right for lateral movement Not only the introduction of the respective driving means is required but also the moving radius of the conveying means 30 is reduced to achieve miniaturization of the pipe-type plug terminal forming apparatus and ease of manufacture.

In the above description, the molded chip tacking portion 41 and the cutter constituting the terminal cutting portion 47 are not described in detail. However, the configuration of the cutter 41 is not limited to the known press- The operation principle and construction are the same and the description related to the cutters provided to raise and lower the first metal mold 40 and the pressing pressing portion 43a and the pressing rod 46 is also known, Or the ejector draw-in / take-out structure, so that a person skilled in the art can sufficiently reproduce it by speculation and inference.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that various changes, substitutions and alterations can be made hereto without departing from the spirit and scope of the present invention as defined by the appended claims. And such modifications, alterations, and substitutions are to be construed as being included within the scope of the present invention.

10: Plug 11: Plug terminal
12: integral body 12A: primary molding
12a: Hemispherical tip portion 12b:
13: plug body 14: wire
20: Strip material 21: Molded chip
22: Semicircular rim 23: Plastic deformation space
30: conveying means 31: rotatable conveying member
32: rotating body 33: telescopic type supporting rod
34: Spinning plate 34a:
34b: engaging pin 35: side plate
35a: guide groove portion 40: first mold
41: forming chip tacking portions 41A, 41B: first and second cutting portions
42: drawing forming part 43, 43A, 43B, 43C:
43a: pressing pressing portion 44: second forming portion
45: Slide block 45a: Through hole
45b: protruding pressing portion 46: pressing rod
46a: shearing narrow portion 46b: rear wide portion
47: Terminal cutting portion
50: second mold 51, 52, 53:

Claims

Like plug terminal 11 made of the integral body 12 having the hemispherical tip portion 12a is molded,
Conveying means (30) for supplying the strip material (20) of the plate in the longitudinal direction between the first and second dies (40, 50);
A forming die portion 41 for forming a rim of the forming die 21 in the strip material 20; a drawing processing portion 42 for pressing and deforming the formed forming die 21 by plastic deformation; A first mold (40) in which terminal cutting portions (47) for cutting plastic-deformed pipe-type plug terminals (11) are arranged in a row;
And the first to third mounting portions 51, 52, 53 corresponding to the molding chip tack portion 41, the drawing processing portion 42, and the terminal cutting portion 47 are arranged in a line, (50)
The drawing processing unit 42
A first forming portion 43 having a pressing pressing portion 43a for pressing and deforming the cut forming die 21,
And a protruded pressing portion 45b inserted into the primary molded product 12A subjected to plastic deformation in the first forming portion 43 to press and deform a part of the primary molded product 12A outwardly, (44)
The second forming portion 44
A plurality of slide blocks 45 arranged radially to form a through hole 45a at the center while being inserted into the primary molding 12A and having the protruding pressing portion 45b protruding outwardly,
A front end narrowing portion 46a having a relatively small diameter and a rear end wide portion 45b having a diameter larger than that of the front end narrowing portion 46a and having a diameter that is inserted into the primary molding 12A through the through hole 45a, And a rod 46,
As the pressing rod 46 is inserted into the primary molded product 12A, the rear wide portion 45b presses the slide block 45 and the protruding pressing portion 45b is opened,
Wherein the protruding portion (12b) protruding outward is formed in the middle of the plastically deformed integral body (12).

The method according to claim 1,
The molded chip tack portion 41
A first cutting portion 41A for first cutting the edge of the shaping chip 21 in the strip material 20,
And a second cutting portion (42B) for cutting the plastic deformation space (23) secondarily to the outside of the first cut molded chip (21).

3. The method according to claim 1 or 2,
The transfer means (30)
A rotating body 32 rotating in the feeding direction of the strip material 20,
A telescopic type support rod 33 connected to the outer circumferential surface of the rotating body 32,
A guide protrusion 34a hinged to the end of the support rod 33 and protruding laterally and a retaining pin 34b protruded upward and inserted into the fixing hole 20a of the strip material 20 A rotary plate 34,
A rotatable conveying member 31 including a side plate 35 provided in the direction of the rotating body 32 and having a guide groove 35A in which the guide protrusion 34a is inserted, Wherein the plug-type plug terminal forming apparatus comprises:

And an integral body (12) having a hemispherical tip (12a)
The integral body 12 is cut and formed by subjecting a strip material 20 having a predetermined length to drawing and plastic deformation,
The integral body (12) includes a projecting portion (12b) projecting outward in the middle,
The protruding portion 12b
And a plurality of slide blocks 45b which are radially arranged to form a through hole 45a at the center while being inserted into the primary molding 12A of the integral body 12 and having the protruding pressing portion 45b protruding outwardly, (45)
A front end narrowing portion 46a having a relatively small diameter and a rear end wide portion 45b having a diameter larger than that of the front end narrowing portion 46a and having a diameter that is inserted into the primary molding 12A through the through hole 45a, By using the second forming part 44 composed of the rods 46,
And the rear end wide portion 45b presses the slide block 45 and the protruding press portion 45b is formed as the pressing rod 46 is inserted into the primary molded product 12A. Pipe type plug terminal.