CN216818913U - Fisheye needle stamping tape - Google Patents

Abstract

The utility model discloses a fisheye needle punching material belt which comprises a material belt and a plurality of terminals arranged on the material belt in an interval manner, wherein the material belt and a terminal group are arranged in an integrated manner, and the material belt is a metal belt; the material area is taken including first material area, the second material area that the interval set up, and first material area is taken and the second material is taken and is followed material area length direction interval formula between and be connected with a plurality of linking arms, encloses between the two adjacent linking arms and becomes to be located the terminal row cloth district between first material area, the second material area, is provided with three terminal in every terminal row cloth district: a first terminal, a second terminal, and a third terminal; the terminal is provided with an L-shaped connecting part and a fisheye part, the L-shaped connecting part comprises a transverse part and a vertical part integrally connected to one end of the transverse part, and the fisheye part is integrally connected to the other end of the transverse part; the horizontal portion of first terminal, second terminal and third terminal is along the width direction of taking the material interval in proper order and arrange and the design of gradually shortening, and the vertical portion of first terminal, second terminal and third terminal is along the length direction of taking the material interval in proper order and arrange and design of gradually shortening.

Description

Fisheye needle stamping tape

technical field

The utility model relates to the technology in the field of fish-eye needle punching material belts, in particular to a fish-eye needle punching material belt.

Background technique

The manufacturing process of electrical connectors generally begins with stamped terminals. The terminals of the electrical connector are stamped from thin metal strips by a high-speed stamping machine. One end of the large roll of metal strip is fed into the front end of the punching machine, and the other end is wound into the take-up wheel through the hydraulic table of the punching machine.

At present, electrical connectors on the market are usually equipped with a plurality of terminals, each of which has the same or similar shape, and the terminals are usually arranged regularly in the electrical connector. Sheet metal strips are usually used in the production of electrical connectors to improve the efficient automation of terminal production, subsequent electroplating and assembly. However, in the traditional technology, a metal sheet is used as a strip to punch out the intermediate product in the form of a combination of terminals and strips in a continuous die, and usually only one type of terminal is stamped on a strip. The waste of the material belt occupies a large area, resulting in waste of materials. Moreover, for terminals of different sizes or shapes, they need to be stamped separately, resulting in the need to configure a variety of stamping dies, and the stamping production efficiency is also limited, making it difficult to further improve.

Therefore, it is necessary to study a new technical solution to solve the above problems.

Utility model content

In view of this, the main purpose of the present invention is to provide a fish-eye needle punching material belt, which is mainly provided in an integrated manner, and is provided with a spaced type on the material belt. In the terminal arrangement area, three terminals with different sizes and the same structure are arranged on the terminal arrangement area, and the three terminals respectively have an L-shaped connecting part and a fish-eye part. The horizontal and vertical parts, which are arranged in sequence and gradually shortened, make full use of the occupied area of the tape; at the same time, one punching of the fish-eye needle stamping tape can obtain more terminal arrangement areas, and the stamping efficiency can be improved. promote.

To achieve the above object, the present invention adopts the following technical scheme:

A fish-eye needle punching material belt, comprising a material belt and a plurality of terminals arranged on the material belt in a spaced manner, the material belt and the terminal group are integrally arranged, and the material belt is a metal belt;

The material belt includes a first material belt and a second material belt arranged at intervals, and a plurality of connecting arms are connected at intervals along the length direction of the material belt between the first material belt and the second material belt. A terminal arrangement area is formed between the first material strip and the second material belt, and each terminal arrangement area is provided with three terminals, which are respectively defined as the first terminal, the second terminal and the third terminal; The terminal has an L-shaped connecting portion and a fish-eye portion, the L-shaped connecting portion includes a lateral portion and a vertical portion integrally connected to one end of the lateral portion, and the fish-eye portion is integrally connected to the other end of the lateral portion; The lateral portions of the first terminal, the second terminal and the third terminal are arranged at intervals along the width direction of the strip and are designed to be gradually shortened, and the vertical parts of the first terminal, the second terminal and the third terminal are along the length of the strip. The directions are arranged at intervals and gradually shortened.

As a preferred solution, a connecting bar integrally extends from the first material tape toward the terminal arrangement area, and the lateral portions of the first terminal, the second terminal and the third terminal are respectively connected to the connecting bar.

As a preferred solution, the lateral parts of the first terminal, the second terminal and the third terminal are respectively connected to the upper side of the connecting strip, and the other side of the connecting strip is respectively extended with an extension part corresponding to each lateral part, so The fish-eye portion is connected to the corresponding extension portion.

As a preferred solution, the vertical parts of the first terminal, the second terminal and the third terminal are respectively connected to the inner side of the second material strip, and the outer side of the second material strip corresponds to each vertical part A pin portion extends.

As a preferred solution, the first material belt and the second material belt are also provided with a number of positioning holes at intervals.

As a preferred solution, the extension part is provided with a first electroplating layer; the first electroplating layer includes a first nickel-plating layer and a silver-plating layer plated in sequence, and the thickness of the first nickel-plating layer is 1- 2 microns, the thickness of the silver-plated layer is 4-6 microns; and a thiol passivation layer is arranged on the silver-plated layer.

As a preferred solution, the pin portion is a quasi-circular needle-like structure, the end portion of the pin portion is a conical structure, and the conical structure consists of a convex arc surface on the front side of the end portion of the pin portion, and a convex surface on the right side of the end portion of the pin portion. It is composed of an arc surface, a convex arc surface on the rear side and a convex arc surface on the left side.

As a preferred solution, a second electroplating layer is provided on the pin portion, and the second electroplating layer includes a second nickel-plating layer and a tin-plating layer plated in sequence; wherein, the thickness of the second nickel layer is 1 -3 microns, the thickness of the tin plating layer is 0.4-1.2 microns.

As a preferred solution, the pin portion is provided with a stop step.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, the main purpose is that the fish-eye needle punching material belt is set in one piece, and the material belt is provided with terminals at intervals. Arrangement area, three terminals with different sizes and the same structure are arranged on the terminal arrangement area, and the three terminals respectively have an L-shaped connection part and a fish-eye part, and the L-shaped connection part is provided with a sequence along the width direction of the material strip respectively. The horizontal and vertical parts with spacing arrangement and gradually shortening design make full use of the occupied area of the tape; at the same time, punching the fish-eye needle stamping tape once can obtain more terminal arrangement areas, and the stamping efficiency can be improved .

Secondly, there are connecting strips on the material belt of the fisheye needle punching material belt, which are connected to the three terminals, so as to ensure the stable connection between the terminals and the material belt, and avoid falling off and deformation; in addition, the pins of the three terminals are respectively It is arranged on the outer side of the material belt, and its arrangement is ingenious, the layout is reasonable, the structure is simple, and it is easy to produce.

In order to illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Description of drawings

1 is a front view of an embodiment of the present utility model;

Fig. 2 is the front partial view of the embodiment of the present utility model;

3 is a side partial view of an embodiment of the present utility model;

Fig. 4 is the front partial view of the fish-eye part of the embodiment of the present utility model;

Fig. 5 is the front partial view of the pin part of the embodiment of the present utility model;

Figure 6 is a partial cross-sectional view at A-A in Figure 2;

7 is a side partial view of the pin portion of the embodiment of the present utility model;

8 is a schematic diagram of a process flow of an embodiment of the present invention.

Description of drawings:

10. Material belt 11. The first material belt

111, connecting strip 12, the second material belt

13. Positioning hole 14. Connecting arm

20. Terminal arrangement area 20a, the first terminal

20b, second terminal 20c, third terminal

21. L-shaped connecting part 211. Transverse part

212, vertical part 22, extension part

221, the first electroplating layer 23, fish eye

231, guide surface 232, through hole

233, concave arc edge 24, pin part

241, stop step 242, second electroplating layer

243. Conical structure 30. Rolling wheel.

Detailed ways

In the description of the present utility model, it should be noted that, for orientation words, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate orientation and positional relationship as Based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as The specific protection scope of the present invention is limited.

Please refer to FIG. 1 to FIG. 8 , which show the specific structure of the embodiment of the present invention.

A fish-eye needle punching material tape includes a material tape 10 and a plurality of terminals arranged on the material tape 10 at intervals, the material tape 10 and the terminal group are integrally arranged, and the material tape 10 is a metal tape. Figure 1 shows a front view of the fisheye needle stamping tape. The material belt 10 includes a first material belt 11 and a second material belt 12 arranged at intervals, and a plurality of connecting arms 14 are connected at intervals along the length direction of the material belt 10 between the first material belt 11 and the second material belt 12 , a terminal arrangement area 20 located between the first material belt 11 and the second material belt 12 is formed between the adjacent two connecting arms 14, and each terminal arrangement area 20 is provided with three terminals, which are respectively defined as The first terminal 20a, the second terminal 20b and the third terminal 20c. The terminal has an L-shaped connecting portion 21 and a fish-eye portion 23. The L-shaped connecting portion 21 includes a lateral portion 211 and a vertical portion 212 integrally connected to one end of the lateral portion 211. The fish-eye portion 23 is integrally connected to the terminal. the other end of the transverse portion 211 . The lateral portions 211 of the first terminal 20a, the second terminal 20b and the third terminal 20c are arranged at intervals along the width direction of the material tape 10 and are designed to be gradually shortened. The first terminal 20a, the second terminal 20b and the third terminal The vertical portions 212 of 20c are arranged at intervals along the length direction of the material belt 10 and are designed to be gradually shortened. Preferably, the first material belt 11 and the second material belt 12 are further provided with a plurality of positioning holes 13 at intervals.

As shown in FIG. 2 and FIG. 3 , it shows a front partial view and a side partial view of the fish-eye needle punching tape. In this embodiment, the material belt 10 includes a first material belt 11 and a second material belt 12 arranged up and down, and a plurality of positioning holes 13 are respectively provided on the first material belt 11 and the second material belt 12 at intervals. . In addition, connecting arms 14 are respectively connected between the first material belt 11 and the second material belt 12 , and the first material belt 11 , the second material belt 12 and the connecting arms 14 on both sides form a terminal arrangement. District 20. The aforementioned L-shaped connecting portion 21 and the fish-eye portion 23 are disposed in the terminal arranging area 20 . The L-shaped connecting portion 21 includes a transverse portion 211 and a vertical portion 212 integrally connected to one end of the transverse portion 211 , and the fish-eye portion 23 is integrally connected to the other end of the transverse portion 211 . The first material tape 11 is integrally extended with a connecting bar 111 toward the terminal arrangement area 20, and the lateral portions 211 of the first terminal 20a, the second terminal 20b and the third terminal 20c are respectively connected to the connecting bar 111, so that: The three terminals are firmly connected to the material strip 10, and the deformation phenomenon of the L-shaped connecting portion 21 and the fish-eye portion 23 of the three terminals is reduced during the stamping process.

The lateral portions 211 of the first terminal 20a, the second terminal 20b and the third terminal 20c are respectively connected to the upper side of the connecting bar 111, and the other side of the connecting bar 111 is respectively extended with an extension portion 22 corresponding to each lateral portion 211 , the fish-eye portion 23 is connected to the corresponding extension portion 22 . A first electroplating layer 221 is disposed on the extending portion 22 . Preferably, the first electroplating layer 221 includes a first nickel-plating layer and a silver-plating layer plated in sequence, the thickness of the first nickel-plating layer is 1-2 microns, and the thickness of the silver-plating layer is 4-6 microns and, a thiol passivation layer is arranged on the silver-plated layer.

The vertical portions 212 of the first terminal 20a, the second terminal 20b and the third terminal 20c are respectively connected to the inner side of the second material strip 12, and the outer side of the second material belt 12 corresponds to each vertical portion The prong portion 24 extends from 212 . The pin portion 24 is provided with a stop step 241, so that when the pin portion 24 is butted with the docking element, the insertion is stable.

Figure 4 shows a frontal partial view of the fish eye. The head of the fish-eye portion 23 has a tapered structure. Guide surfaces 231 are respectively provided on both sides of the head of the fish-eye portion 23 . A through hole 232 is formed through the middle of the fish-eye portion 23 . One end of the through hole 232 is disposed on the left side of the head of the fisheye portion 23 , and the other end of the through hole 232 extends to the left side of the root portion of the fisheye portion 23 ; The concave arc edges 233 are respectively arranged at the connection parts, so that the width of the root of the fish-eye portion 23 is increased to prevent the fish-eye portion 23 from being bent, broken and buckled when it is pressed into the PCB board.

As shown in FIGS. 5 to 7 , they show a front partial view of the pin portion, a partial cross-sectional view of the fisheye needle punching material tape at A-A in FIG. 2 , and a side partial view of the pin portion, respectively. A pin portion 24 extends from the outer side of the second material strip 12 corresponding to each vertical portion 212 . The pin portion 24 is a quasi-circular needle-like structure, and the end portion of the pin portion 24 is a cone-shaped structure 243. It is composed of a surface, a convex arc surface on the rear side, and a convex arc surface on the left side. In addition, a second electroplating layer 242 is disposed on the pin portion 24, and the second electroplating layer 242 includes a second nickel-plating layer and a tin-plating layer plated in sequence; wherein, the thickness of the second nickel layer is 1- 3 microns, and the thickness of the tin plating layer is 0.4-1.2 microns. Preferably, the surface roughness of the pin portion 24 is Ra≤0.4. In the fish-eye needle punching tape, the pin portions 24 of the three terminals are respectively arranged on the outer sides of the tape 10, so that the tape 10 is fully utilized and the occupied area of the waste material in the tape 10 is reduced; A larger number of terminals can be obtained by one punching operation, and the punching efficiency is improved.

8 is a schematic diagram of a process flow of an embodiment of the present invention. Next, the production process of this embodiment is described in detail as follows:

One end of the large roll of metal strip is fed into the front end of the punching machine; the other end of the metal strip passes through the hydraulic table of the punching machine and is wound into the take-up pulley 30; The strip is punched in a continuous die mode, and the metal strip forms the material strip 10 and punches out the terminal arrangement area 20 arranged at intervals; the first terminal 20a, the second terminal 20b and the third terminal 20c of the terminal arrangement area 20 are integrally connected on the material strip 10; then, the take-up wheel 30 pulls out the material strip 10, and rolls the punched and formed material strip 10. The strip 10 is punched once to obtain regularly arranged first terminals 20a, second terminals 20b, and third terminals 20c, and the punching efficiency is improved; at the same time, the material of the strip 10 is fully utilized to reduce the area occupied by waste materials.

When the fish-eye needle punching material belt is electroplated, the belt 10 is rolled out by the take-up wheel 30, and the burr surface of the material belt 10 faces the core of the take-up wheel 30; and then the material belt 10 is sent to the electroplating processing table , and perform continuous electroplating processing on the terminal arrangement area 20 arranged at intervals on the material tape 10 . In the fisheye needle punching tape 10, the first terminals 20a, the second terminals 20b, and the third terminals 20c are regularly arranged on the tape 10, and one electroplating process can realize the electroplating of the extension parts 22 and the pin parts 24 of the three terminals processing, improve processing efficiency.

The key point of the design of the present utility model is that the fish-eye needle punching material tape is set in one piece, the terminal arrangement area is arranged at intervals on the material tape, and three terminals with different sizes and the same structure are arranged on the terminal arrangement area. , and the three terminals respectively have an L-shaped connection part and a fish-eye part, and the L-shaped connection part is provided with a horizontal part and a vertical part which are arranged at intervals along the width direction of the material strip and are gradually shortened to make full use of the At the same time, one punching of the fisheye needle punching tape can obtain more terminal arrangement areas, and the punching efficiency can be improved.

Secondly, there are connecting strips on the material belt of the fisheye needle punching material belt, which are connected to the three terminals, so as to ensure the stable connection between the terminals and the material belt, and avoid falling off and deformation; in addition, the pins of the three terminals are respectively It is arranged on the outer side of the material belt, and its arrangement is ingenious, the layout is reasonable, the structure is simple, and it is easy to produce.

Claims (9)

1. A fish-eye needle punching material belt, comprising material belt and some terminals that are arranged on the material belt at intervals, the material belt and the terminal group are integrally arranged, and the material belt is a metal belt; it is characterized in that: The material belt includes a first material belt and a second material belt arranged at intervals, and a plurality of connecting arms are connected at intervals along the length direction of the material belt between the first material belt and the second material belt. A terminal arrangement area is formed between the first material strip and the second material belt, and each terminal arrangement area is provided with three terminals, which are respectively defined as the first terminal, the second terminal and the third terminal; The terminal has an L-shaped connecting portion and a fish-eye portion, the L-shaped connecting portion includes a lateral portion and a vertical portion integrally connected to one end of the lateral portion, and the fish-eye portion is integrally connected to the other end of the lateral portion; The lateral portions of the first terminal, the second terminal and the third terminal are arranged at intervals along the width direction of the strip and are designed to be gradually shortened, and the vertical parts of the first terminal, the second terminal and the third terminal are along the length of the strip. The directions are arranged at intervals and gradually shortened. 2 . The fish-eye needle punching material tape according to claim 1 , wherein the first material tape is integrally extended with connecting strips toward the terminal arrangement area, and the first terminal, the second terminal and the third terminal are integrally extended. 3 . The transverse portions of the s are respectively connected to the connecting strips. 3 . The fisheye needle punching tape according to claim 2 , wherein the lateral portions of the first terminal, the second terminal and the third terminal are respectively connected to the upper side of the connecting bar, and the connecting bar is 3. 4 . The other side is respectively extended with an extension portion corresponding to each transverse portion, and the fish-eye portion is connected to the corresponding extension portion. 4 . The fisheye needle punching tape according to claim 1 , wherein the vertical portions of the first terminal, the second terminal and the third terminal are respectively connected to the inner side of the second tape, so the The outer side of the second material strip extends with a pin portion corresponding to each vertical portion. 5 . The fish-eye needle punching material belt according to claim 1 , wherein the first material belt and the second material belt are further provided with a plurality of positioning holes at intervals. 6 . 6 . The punching tape for fisheye needles according to claim 3 , wherein: the extension part is provided with a first electroplating layer; the first electroplating layer comprises a first nickel plating layer, a plating For the silver layer, the thickness of the first nickel-plated layer is 1-2 microns, and the thickness of the silver-plated layer is 4-6 microns; and a thiol passivation layer is arranged on the silver-plated layer. 7 . The fish-eye needle punching tape according to claim 4 , wherein the pin portion is a quasi-circular needle-like structure, the end portion of the pin portion is a conical structure, and the conical structure is composed of The end of the pin portion is surrounded by a convex arc surface on the front side, a convex arc surface on the right side, a convex arc surface on the rear side, and a convex arc surface on the left side. 8 . The fish-eye needle punching tape according to claim 4 , wherein a second electroplating layer is provided on the pin portion, and the second electroplating layer comprises a second nickel-plating layer plated in sequence, an electroplating A tin layer; wherein, the thickness of the second nickel plating layer is 1-3 microns, and the thickness of the tin plating layer is 0.4-1.2 microns. 9 . The fish-eye needle punching tape according to claim 4 , wherein the prong portion is provided with a stop step. 10 .

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