Pipelined inductor pin tape and method of manufacturing the same

Abstract

The application discloses a pipeline operation type inductance pin strip and a preparation method thereof, and belongs to the technical field of inductance manufacturing. The strip comprises an aluminum strip, the aluminum strip is cut into a front edge longitudinal strip, a rear edge longitudinal strip, a plurality of transverse connecting strips, a plurality of inductance front pins and a plurality of inductance rear pins, the front edge longitudinal strip is connected with the rear edge longitudinal strip through the plurality of transverse connecting strips, the plurality of transverse connecting strips are parallel to each other and are distributed at intervals, the plurality of inductance front pins are distributed at intervals on the front edge longitudinal strip and extend towards the rear edge longitudinal strip, the plurality of inductance rear pins are distributed at intervals on the rear edge longitudinal strip and extend towards the front edge longitudinal strip, and one inductance front pin and one inductance rear pin corresponding to the inductance front pin are arranged between adjacent transverse connecting strips. The inductance pins are distributed on the strip, and the strip is used as the form of feeding, so that the problem of material leakage during inductance pin feeding can be effectively solved, and a foundation is laid for the flow of inductance.

Description

Technical Field

[0001] This invention relates to the field of inductor manufacturing technology, specifically to an inductor lead strip and its preparation method. Background Technology

[0002] In existing technology, inductor leads are piece by piece. When soldering inductor coils to inductor leads using an inductor coil soldering device, the inductor leads are fed using a vibratory feeder and a robotic arm. This existing technology has the following drawbacks:

[0003] First, the work efficiency is low, and a streamlined operation cannot be formed in the inductor manufacturing process;

[0004] Secondly, there is a problem of material leakage when loading inductor leads in actual operation, which greatly affects the efficiency of actual operation. Summary of the Invention

[0005] The purpose of this invention is to provide a production line-type inductor lead strip and its preparation method.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A production line type inductor lead strip includes an aluminum strip, which is cut into a front edge longitudinal strip, a rear edge longitudinal strip, multiple transverse connecting strips, multiple inductor front leads, and multiple inductor rear leads. The front edge longitudinal strip is connected to the rear edge longitudinal strip through multiple transverse connecting strips. The multiple transverse connecting strips are parallel to each other and spaced apart. The multiple inductor front leads are spaced apart on the front edge longitudinal strip and extend towards the rear edge longitudinal strip. The multiple inductor rear leads are spaced apart on the rear edge longitudinal strip and extend towards the front edge longitudinal strip. An inductor front lead and an inductor rear lead corresponding to the inductor front lead are provided between adjacent transverse connecting strips.

[0007] Furthermore, multiple front positioning holes and multiple rear positioning holes are distributed on the front edge longitudinal strip and the rear edge longitudinal strip, respectively, and the front positioning holes and the rear positioning holes correspond to each other.

[0008] Furthermore, the front positioning hole is located near one end of the front pin of the inductor, and the rear positioning hole is located near one end of the rear pin of the inductor.

[0009] Furthermore, the front positioning hole and the rear positioning hole are circular holes.

[0010] Furthermore, a resilient front elongated hole is provided on the front edge longitudinal strip and at one end near the transverse connecting strip, and a resilient rear elongated hole is provided on the rear edge longitudinal strip and at the other end near the transverse connecting strip. The resilient rear elongated hole and the resilient front elongated hole are used to give the transverse connecting strip a certain degree of resilience.

[0011] Furthermore, the inductor front pin and the plurality of inductor front pins are respectively provided with front solder joints and rear solder joints. The front solder joints are used to solder to one end of the inductor coil, and the rear solder joints are used to solder to the other end of the inductor coil.

[0012] Furthermore, the widths of the plurality of transverse connecting strips are the same, the widths of the inductor front pin and the inductor rear pin are the same, and the width of the inductor rear pin is not less than 5 times the width of the transverse connecting strips.

[0013] Furthermore, the width of the aluminum strip is 10mm-50mm, and the thickness of the aluminum strip is 0.2mm-0.8mm.

[0014] A method for fabricating a streamlined inductor lead strip includes the following steps: Step 1. Select strip material: The strip material is aluminum strip, the width of the aluminum strip is 10mm-50mm, and the thickness of the aluminum strip is 0.2mm-0.8mm; Step 2. Punching the front and rear positioning holes: Using a positioning hole punching machine, two rows of holes are punched simultaneously on the surface of the strip, one row being the front positioning holes and the other row being the rear positioning holes; Step 3. Punching transverse connecting strips and inductor leads: Using two square punching blades on the square hole punching machine, two square holes are punched out on the surface of the strip in one go. The unpunched part between the two square holes forms the transverse connecting strip. Then, the strip is moved forward one station, and two more square holes are punched out on the surface of the strip in one go using the two square punching blades on the square hole punching machine. The unpunched part between the square holes at adjacent stations forms the inductor leads. The strip is moved forward intermittently in the above manner, and the square hole punching machine punches out multiple transverse connecting strips and multiple inductor leads on the surface of the strip. Step 4. Punching out the long holes after and before the rebound: The strip moves forward intermittently, and two long holes are punched out simultaneously on the strip near both ends of the transverse connecting strip using a rebound hole punching device. One row is for punching out the long holes after the rebound, and the other row is for punching out the long holes before the rebound. Step 5. Punching out solder joint forming holes: The strip moves forward intermittently, and a solder joint forming hole is punched out in the middle of each inductor lead on the strip using a solder joint forming hole punching device; Step 6. Cutting inductor leads: The strip moves forward intermittently, and the middle section of each inductor lead is cut using a lead cutting device. Each inductor lead is divided into a front inductor lead and a rear inductor lead. A front solder joint is formed at the end of the front inductor lead and a rear solder joint is formed at the end of the rear inductor lead. After the inductor leads are cut, an inductor lead strip is formed. Step 7. Winding into a reel: Wind the inductor lead strip into a reel for later use.

[0015] Furthermore, the positioning hole punching equipment, square hole punching equipment, resilient hole punching equipment, solder joint forming hole punching equipment, and lead cutting equipment are independent equipment or integrated into a multi-process punching and molding equipment.

[0016] The beneficial effects of this invention are as follows: This application distributes the inductor leads on a strip and feeds them in the form of a strip, which can effectively solve the problem of material leakage when feeding inductor leads and lay the foundation for the streamlined production of inductors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the inductor lead strip of the present invention; Figure 2 This is a flowchart illustrating the method for preparing the inductor lead strip of the present invention. Figure 3 This is a schematic diagram of the structure of the strip selected in step 1 of the method for preparing the inductor lead strip of the present invention; Figure 4 This is a schematic diagram of the structure after step 2 of the method for preparing the inductor lead strip of the present invention is completed; Figure 5 This is a schematic diagram of the structure after step 3 of the inductor lead strip fabrication method of the present invention is completed; Figure 6 This is a schematic diagram of the structure after step 4 of the method for preparing the inductor lead strip of the present invention is completed; Figure 7 This is a schematic diagram of the structure after step 5 of the inductor lead strip fabrication method of the present invention is completed.

[0018] In the diagram: 1. Front edge longitudinal strip; 2. Rear edge longitudinal strip; 3. Transverse connecting strip; 4. Inductor front pin; 5. Inductor rear pin; 6. Front positioning hole; 7. Rear positioning hole; 8. Resilient front elongated hole; 9. Resilient rear elongated hole; 10. Front solder joint; 11. Rear solder joint; 12. Aluminum strip; 13. Square hole; 14. Inductor pin; 15. Solder joint forming hole. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper surface," "lower surface," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "forward," "reverse," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] like Figure 1 As shown, a production line type inductor lead strip includes an aluminum strip with a width of 10mm-50mm and a thickness of 0.2mm-0.8mm. The aluminum strip is cut into a front edge longitudinal strip 1, a rear edge longitudinal strip 2, multiple transverse connecting strips 3, multiple inductor front leads 4, and multiple inductor rear leads 5. The front edge longitudinal strip 1 is connected to the rear edge longitudinal strip 2 through multiple transverse connecting strips 3. The multiple transverse connecting strips 3 are parallel to each other and spaced apart. The multiple inductor front leads 4 are spaced apart on the front edge longitudinal strip 1 and extend towards the rear edge longitudinal strip 2. The multiple inductor rear leads 5 are spaced apart on the rear edge longitudinal strip 2 and extend towards the front edge longitudinal strip 1. An inductor front lead 4 and an inductor rear lead 5 corresponding to the inductor front lead 4 are provided between adjacent transverse connecting strips 3.

[0022] In this embodiment, a plurality of front positioning holes 6 and a plurality of rear positioning holes 7 are distributed on the front edge longitudinal strip 1 and the rear edge longitudinal strip 2, respectively. The front positioning holes 6 and the rear positioning holes 7 correspond to each other. The front positioning hole 6 is close to one end of the front pin 4 of the inductor, and the rear positioning hole 7 is close to one end of the rear pin 5 of the inductor.

[0023] In this embodiment, the front positioning hole 6 and the rear positioning hole 7 are circular holes.

[0024] In this embodiment, a resilient front elongated hole 8 is provided on one end of the front edge longitudinal strip 1 and near the transverse connecting strip 3, and a resilient rear elongated hole 9 is provided on the other end of the rear edge longitudinal strip 2 and near the transverse connecting strip 3. The resilient rear elongated hole 9 and the resilient front elongated hole 8 are used to give the transverse connecting strip 3 a certain degree of resilience.

[0025] In this embodiment, the inductor front pin 4 and the plurality of inductor front pins 5 are respectively provided with front solder joints 10 and rear solder joints 11. The front solder joint 10 is used to solder to one end of the inductor coil, and the rear solder joint 11 is used to solder to the other end of the inductor coil.

[0026] In this embodiment, the widths of the plurality of transverse connecting strips 3 are the same, the widths of the inductor front pin 4 and the inductor rear pin 5 are the same, and the width of the inductor rear pin 5 is not less than 5 times the width of the transverse connecting strips 3.

[0027] like Figure 2 As shown, a method for fabricating a streamlined inductor lead strip includes the following steps:

[0028] Step 1. Select strip material: The strip material is aluminum strip 12, the width of the aluminum strip is 10mm-50mm, and the thickness of the aluminum strip is 0.2mm-0.8mm. Figure 3 As shown.

[0029] Step 2. Punching the front and rear positioning holes: Using a positioning hole punching machine, two rows of holes are simultaneously punched on the surface of the strip, one row being the front positioning holes and the other row being the rear positioning holes, as shown below. Figure 4 As shown.

[0030] Step 3. Punching Transverse Connecting Strips and Inductor Pins: Using two square punching blades on the square hole punching machine, two square holes 13 are punched out on the surface of the strip in one go. The unpunched portion between the two square holes 13 forms the transverse connecting strip 3. Then, the strip is moved forward one station, and two more square holes are punched out on the surface of the strip in one go using the two square punching blades on the square hole punching machine. The unpunched portion between the square holes at adjacent stations forms the inductor pins 14. By intermittently moving the strip forward in the above manner, the square hole punching machine punches out multiple transverse connecting strips and multiple inductor pins 14 on the surface of the strip. Figure 5 As shown.

[0031] Step 4. Punching elongated holes after and before the springback: The strip moves forward intermittently. Using a springback hole punching device, two elongated holes are simultaneously punched on the strip near both ends of the transverse connecting strip. One row punches elongated holes after the springback, and the other row punches elongated holes before the springback, as shown below. Figure 6 As shown.

[0032] Step 5. Punching Solder Joint Forming Holes: The strip moves forward intermittently, and a solder joint forming hole 15 is punched in the middle of each inductor lead 14 on the strip using a solder joint forming hole punching device. The function of the solder joint forming hole 15 is to form solder joints on the inductor leads, such as... Figure 7 As shown.

[0033] Step 6. Cutting Inductor Leads: The strip moves forward intermittently, and the middle section of each inductor lead is cut using a lead cutting device. Each inductor lead is divided into a front inductor lead and a rear inductor lead. A front solder joint is formed at the end of the front inductor lead, and a rear solder joint is formed at the end of the rear inductor lead. After the inductor leads are cut, the inductor lead strip is formed, as shown below. Figure 1 As shown.

[0034] Step 7. Winding into a reel: Wind the inductor lead strip into a reel for later use.

[0035] In this embodiment, the positioning hole punching device, square hole punching device, resilient hole punching device, solder joint forming hole punching device, and pin cutting device are independent devices or integrated into a multi-process punching and molding device.

[0036] Working principle: This application distributes the inductor pins on the strip and feeds them in the form of strips, which can effectively solve the problem of material leakage when feeding inductor pins and lay the foundation for the streamlined production of inductors.

[0037] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those embodiments or examples, without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A production line-type inductor lead strip, comprising aluminum strip, characterized in that: The aluminum strip is cut into a front edge longitudinal strip, a rear edge longitudinal strip, multiple transverse connecting strips, multiple inductor front pins, and multiple inductor rear pins. The front edge longitudinal strip is connected to the rear edge longitudinal strip through multiple transverse connecting strips. The multiple transverse connecting strips are parallel to each other and spaced apart. The multiple inductor front pins are spaced apart on the front edge longitudinal strip and extend towards the rear edge longitudinal strip. The multiple inductor rear pins are spaced apart on the rear edge longitudinal strip and extend towards the front edge longitudinal strip. An inductor front pin and an inductor rear pin corresponding to the inductor front pin are provided between adjacent transverse connecting strips.

2. The assembly-line type inductor lead strip according to claim 1, characterized in that: The front edge longitudinal strip and the rear edge longitudinal strip are respectively provided with a plurality of front positioning holes and a plurality of rear positioning holes, and the front positioning holes and the rear positioning holes correspond to each other.

3. The assembly-line type inductor lead strip according to claim 2, characterized in that: The front positioning hole is located near one end of the front pin of the inductor, and the rear positioning hole is located near one end of the rear pin of the inductor.

4. The assembly-line type inductor lead strip according to claim 3, characterized in that: The front and rear positioning holes are circular.

5. The assembly-line type inductor lead strip according to claim 4, characterized in that: A resilient front elongated hole is provided on the front edge longitudinal strip and near one end of the transverse connecting strip, and a resilient rear elongated hole is provided on the rear edge longitudinal strip and near the other end of the transverse connecting strip. The resilient rear elongated hole and the resilient front elongated hole are used to give the transverse connecting strip a certain degree of resilience.

6. The assembly-line type inductor lead strip according to claim 5, characterized in that: The inductor front pin and multiple inductor front pins are respectively provided with front solder joints and rear solder joints. The front solder joints are used to solder to one end of the inductor coil, and the rear solder joints are used to solder to the other end of the inductor coil.

7. The assembly-line type inductor lead strip according to claim 6, characterized in that: The width of the plurality of transverse connecting strips is the same, the width of the front pin and the rear pin of the inductor is the same, and the width of the rear pin of the inductor is not less than 5 times the width of the transverse connecting strips.

8. The assembly-line type inductor lead strip according to claim 7, characterized in that: The width of the aluminum strip is 10mm-50mm, and the thickness of the aluminum strip is 0.2mm-0.8mm.

9. A method for preparing the assembly line type inductor lead strip as described in claim 8, characterized in that, Includes the following steps: Step 1. Select strip material: The strip material is aluminum strip, the width of the aluminum strip is 10mm-50mm, and the thickness of the aluminum strip is 0.2mm-0.8mm; Step 2. Punching the front and rear positioning holes: Using a positioning hole punching machine, two rows of holes are punched simultaneously on the surface of the strip, one row being the front positioning holes and the other row being the rear positioning holes; Step 3. Punching transverse connecting strips and inductor leads: Using two square punching blades on the square hole punching machine, two square holes are punched out on the surface of the strip in one go. The unpunched part between the two square holes forms the transverse connecting strip. Then, the strip is moved forward one station, and two more square holes are punched out on the surface of the strip in one go using the two square punching blades on the square hole punching machine. The unpunched part between the square holes at adjacent stations forms the inductor leads. The strip is moved forward intermittently in the above manner, and the square hole punching machine punches out multiple transverse connecting strips and multiple inductor leads on the surface of the strip. Step 4. Punching out the long holes after and before the rebound: The strip moves forward intermittently, and two long holes are punched out simultaneously on the strip near both ends of the transverse connecting strip using a rebound hole punching device. One row is for punching out the long holes after the rebound, and the other row is for punching out the long holes before the rebound. Step 5. Punching out solder joint forming holes: The strip moves forward intermittently, and a solder joint forming hole is punched out in the middle of each inductor lead on the strip using a solder joint forming hole punching device; Step 6. Cutting inductor leads: The strip moves forward intermittently, and the middle section of each inductor lead is cut using a lead cutting device. Each inductor lead is divided into a front inductor lead and a rear inductor lead. A front solder joint is formed at the end of the front inductor lead and a rear solder joint is formed at the end of the rear inductor lead. After the inductor leads are cut, an inductor lead strip is formed. Step 7. Winding into a reel: Wind the inductor lead strip into a reel for later use.

10. The method for fabricating a production line-type inductor lead strip according to claim 9, characterized in that: The positioning hole punching equipment, square hole punching equipment, resilient hole punching equipment, solder joint forming hole punching equipment, and pin cutting equipment are either independent devices or integrated into a multi-process punching and molding equipment.

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