Welding material tin wire and preparation method thereof

Abstract

The invention relates to a welding material tin wire and a preparation method thereof, and relates to the technical field of brazing. The welding material tin wire comprises a shell made of tin alloy and an inner core made of scaling powder, the shell is arranged outside the inner core in a sleeving mode, a plurality of anti-skid grooves are formed in the outer wall of the shell, each anti-skid groove is spiral, a rotating mechanism is further arranged on the shell and comprises a pushing frame, and the pushing frame is arranged on the outer wall of the shell. The bottom end of the pushing frame extends to form an embedded part, and the embedded part is embedded in one anti-skid groove and abuts against the inner wall of the corresponding anti-skid groove. The welding device has the effect that the probability that the solder wire slips during welding of workers is reduced.

Description

Technical Field

[0001] The present application relates to the field of brazing technology, and in particular to a tin wire of a welding material and a preparation method thereof. Background Art

[0002] With the continuous development of social economy and the increasing improvement of scientific and technological level, my country's electronic industry is also booming. The connection between electronic components and circuits is often achieved by brazing, that is, using metal materials with low melting points as brazing materials, using liquid brazing materials to wet the parent material, fill the joint gap, and diffuse with the parent material to achieve welded connection.

[0003] In the prior art, lead-free solder wire is generally used as the commonly used soldering material. The center of the solder wire is filled with flux. After the solder wire is melted by an electric iron, the solder drips to the welding point. The flux increases the surface activity of the solder and isolates oxygen to prevent the solder from oxidizing quickly. After the solder condenses, a joint is formed.

[0004] Regarding the above-mentioned related technologies, since the existing lead-free solder wire is generally set in a cylindrical shape and is relatively thin and soft, when the relevant personnel hold the solder wire for welding, the lead-free solder wire is easy to slip out of the hand, so that the relevant personnel need to pick up the lead-free solder wire and realign the welding position, which reduces the welding efficiency of the workpiece, so it needs to be improved. Summary of the invention

[0005] In order to reduce the probability of solder wire slipping off when workers are welding, the present application provides a welding material tin wire and a preparation method thereof.

[0006] In the first aspect, the present application provides a welding material tin wire, which adopts the following technical solution: A welding material tin wire comprises an outer shell made of tin alloy and an inner core made of flux, wherein the outer shell is sleeved outside the inner core, and a plurality of anti-slip grooves are provided on the outer wall of the outer shell, each of the anti-slip grooves is spiral-shaped. A rotating mechanism is also provided on the outer shell, and the rotating mechanism comprises a pushing frame, and an embedded portion extends from the bottom end of the pushing frame, and the embedded portion is embedded in one of the anti-slip grooves and abuts against the inner wall of the corresponding anti-slip groove.

[0007] By adopting the above technical scheme, compared with the prior art, the thin and soft lead-free solder wire is set to a cylindrical shape, so that when the relevant personnel hold the solder wire for welding, the lead-free solder wire is easy to slip out of the hand, thereby reducing the welding efficiency of the workpiece; the present application sets an anti-skid groove, so that the anti-skid groove on the outer shell can increase the roughness of the outer shell surface, thereby increasing the friction between the hand and the outer shell when the relevant personnel hold the outer shell, and then effectively reducing the probability of the outer shell slipping out of the hand when the relevant personnel hold the outer shell, thereby ensuring the welding efficiency of the workpiece; at the same time, the existence of the rotating mechanism also enables the relevant personnel to push the pushing frame when holding the outer shell, driving the embedded part to slide in the anti-skid groove, thereby causing the held outer shell to rotate, so that the welding point and the solder wire are quickly disconnected, reducing the probability of pointed heads or adhesion at the welding point.

[0008] Preferably, the cross-section of the anti-slip groove is dovetail-shaped, and the rotating mechanism also includes an abutment frame and a rotating assembly. The number of the abutment frames is set to be several, one end of each of the abutment frames is rotatably connected to the embedded part, and the other end extends to the bottom of the corresponding anti-slip groove and is attached to the side wall of the anti-slip groove. The rotating assembly is used to drive each abutment frame to rotate.

[0009] By adopting the above technical solution, the abutment frame and the rotating component are arranged, so that after the embedded part is inserted into the anti-slip groove, the relevant personnel can drive each abutment frame to rotate through the rotating component, so that each abutment frame close to the end of the bottom wall of the anti-slip groove rotates outward and abuts against the inner wall of the anti-slip groove, thereby realizing a sliding connection between the embedded part as a whole and the inner wall of the anti-slip groove, which effectively facilitates the relevant personnel to disassemble and install the push frame, thereby indirectly improving the welding efficiency.

[0010] Preferably, the rotating assembly includes a rotating frame and a driving member, the number of the rotating frames is set to be several and corresponds to the abutment frames one by one, each of the rotating frames is located between the several abutment frames, one end of each of the rotating frames away from the rotating connection end of the corresponding abutment frame is rotatably connected to the embedded portion, each of the abutment frames is located on the displacement path of the other end of the corresponding rotating frame, and the driving member is used to drive each abutment frame to rotate.

[0011] By adopting the above technical solution and the specific setting of the rotating assembly, relevant personnel can drive one end of each rotating frame to slide through the driving frame after inserting the embedded part into the anti-slip groove, so that the other end of the rotating frame is close to the corresponding abutment frame and gradually abuts against the abutment frame, pushing the abutment frame to rotate, realizing the driving of the abutment frame, which effectively facilitates the driving of the abutment frame by relevant personnel.

[0012] Preferably, the driving member includes a sliding frame and a plurality of driving frames, the sliding frame is slidably connected to the embedded portion, the driving frames correspond to the rotating frames one by one, one end of each of the driving frames is rotatably connected to the sliding frame, and one end of each of the rotating frames away from itself and rotatably connected to the embedded portion is rotatably connected to the other end of the corresponding driving frame.

[0013] By adopting the above technical solution and the specific arrangement of the driving member, after the embedded part is inserted into the anti-slip groove, the relevant personnel can drive the sliding frame to slide, so that the sliding frame drives one end of the driving frame to approach the corresponding end of the corresponding abutment frame, so that the driving frame and the corresponding abutment frame both rotate respectively, thereby realizing the driving of the abutment frame, effectively facilitating the relevant personnel to drive several abutment frames at the same time, thereby improving the driving efficiency.

[0014] Preferably, each rotating frame has an extension portion extending from one end away from the corresponding anti-slip groove bottom, each extension portion is provided with a push assembly, and the sliding frame is also provided with a push portion, and the push portion drives the corresponding abutment frame to continue rotating by locking the push assembly.

[0015] By adopting the above technical solution and setting the push assembly, during the sliding process of the sliding frame, the push portion on itself can continue to drive the abutment frame to rotate through the push assembly, so that the abutment frame abuts against the inner wall of the anti-slip groove, thereby continuing to drive the abutment frame, so that the rotation does not need to push the abutment frame to rotate throughout the entire process, thereby reducing the length of the rotating frame and the driving frame, and at the same time ensuring that the abutment frame can smoothly abut against the inner wall of the anti-slip groove.

[0016] Preferably, the push assembly includes a push frame and a sleeve frame, the push frame is slidably connected to the embedded part, and the sliding direction is the same as the sliding direction of the sliding frame, and is located on the displacement path of the push part, the sleeve frame is sleeved on the corresponding extension part, and is slidably connected to the corresponding extension part, and is rotatably connected to the corresponding push frame.

[0017] By adopting the above technical scheme and the specific setting of the push assembly, when the push part slides together with the sliding frame, the push part can gradually resist the push frame, thereby pushing the push frame to slide. In this process, the push frame drives the corresponding abutment frame to rotate through the sleeve frame, thereby driving the abutment frame, ensuring the continuity of the push part when driving the abutment frame to rotate through the push frame and the sleeve frame, and also ensuring the smooth transmission of the abutment frame, thereby realizing the linkage between the sliding frame and the abutment frame.

[0018] Preferably, each of the push-resisting frames is provided with an elastic member, and the elastic member is used for resetting the corresponding push-resisting frame through its own elastic force.

[0019] By adopting the above technical solution, the elastic member is set so that the elastic member can use its own elastic force to push the push frame to reset when it is against the push frame and the sliding frame moves upward, so that the push frame slides, and then the push frame drives the abutment frame to rotate through the sleeve frame, thereby realizing the reset of the abutment frame, which effectively facilitates the disassembly of the push frame by relevant personnel.

[0020] Preferably, a locking frame is also sleeved on the sliding frame, and the locking frame is rotatably connected to the sliding frame. A locking thread is also provided on the outer wall of the locking frame, and the locking frame is threadably connected to the abutment frame via the locking thread, and one end of the locking frame extends out of the abutment frame.

[0021] By adopting the above technical solution, the setting of the locking frame enables relevant personnel to drive the locking frame to rotate, so that the locking frame is gradually screwed into the embedded part, so that the locking frame drives the driving frame to slide. At the same time, in the process of the locking frame gradually being screwed into the embedded part, the locking frame can also be locked by the locking thread, thereby locking the driving frame, which effectively facilitates the operation of relevant personnel.

[0022] Preferably, the number of the abutment frames is set to several groups, the number of the rotating assemblies is set to several, several groups of the abutment frames correspond to the rotating assemblies one by one, and the rotating mechanism also includes a connecting frame, which is connected to each of the sliding frames.

[0023] By adopting the above technical solution, the abutment frames and the rotating components are arranged in several groups, so that the present application can drive multiple abutment frames through the connecting frame, and each abutment frame can abut against the inner wall of the anti-slip groove after rotation, thereby ensuring the fit between the extension part and the inner wall of the anti-slip groove, and effectively ensuring the stability of the relevant personnel when driving the push frame to slide.

[0024] On the other hand, the present application also provides a method for preparing tin wire of welding material, which adopts the following technical solution: A method for preparing tin wire of welding material comprises the following steps: Extrusion raw materials: melt the tin-copper alloy in the extruder and extrude it to the outer layer of the die head of the extruder, mix the flux raw materials and extrude them to the inner layer of the die head of the extruder; Extrusion molding: The extruder squeezes the tin-copper alloy and the flux out of the die head, so that the tin-copper alloy forms a thicker solder rod, and the flux forms the inner core of the solder rod; Stretching and twisting: The solder rod is stretched multiple times and twisted at the same time to stretch the solder rod into a thinner spiral solder wire; Cutting anti-skid grooves: After placing the solder wire on a special ring cutter, the ring cutter rotates around the solder wire and pulls the solder wire at the same time to cut out a spiral anti-skid groove.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The anti-skid groove is set so that the anti-skid groove on the shell can increase the roughness of the shell surface, thereby increasing the friction between the hand and the shell when the relevant personnel hold the shell, thereby effectively reducing the probability of the shell slipping out of the hand when the relevant personnel hold the shell, and ensuring the welding efficiency of the workpiece; at the same time, the existence of the rotating mechanism also enables the relevant personnel to push the push frame when holding the shell, so as to drive the embedded part to slide in the anti-skid groove, thereby rotating the held shell, so that the welding point and the solder wire are quickly disconnected, and the probability of the welding point having a sharp head or adhesion is reduced; 2. The arrangement of the abutment frame and the rotating assembly enables relevant personnel to drive each abutment frame to rotate through the rotating assembly after the embedded part is inserted into the anti-skid groove, so that one end of each abutment frame close to the bottom wall of the anti-skid groove rotates outward and abuts against the inner wall of the anti-skid groove, thereby realizing a sliding connection between the embedded part as a whole and the inner wall of the anti-skid groove, which effectively facilitates the removal and installation of the push frame by relevant personnel, thereby indirectly improving the welding efficiency, and also reducing the probability of the embedded frame accidentally falling out of the anti-skid groove; 3. The specific setting of the push-resistance assembly enables the push-resistance part to gradually resist the push-resistance frame when the push-resistance part slides together with the sliding frame, thereby pushing the push-resistance frame to slide. During this process, the push-resistance frame drives the corresponding abutment frame to rotate through the sleeve frame, thereby driving the abutment frame, ensuring the continuity of the push-resistance part when driving the abutment frame to rotate through the push-resistance frame and the sleeve frame, and at the same time ensuring the smooth transmission of the abutment frame, thereby realizing the linkage between the sliding frame and the abutment frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram used to reflect the overall structure of the tin wire of the welding material in the embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the push frame in the embodiment of the present application.

[0028] Figure 3 It is a structural schematic diagram used to reflect the rotating component in the embodiment of the present application.

[0029] Figure 4 It is a structural schematic diagram used to reflect the push-pull assembly in the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. outer shell; 11. anti-slip groove; 2. inner core; 3. rotating mechanism; 31. pushing frame; 311. embedded part; 32. abutting frame; 321. extending part; 33. rotating assembly; 331. rotating frame; 332. driving member; 3321. sliding frame; 3322. driving frame; 34. connecting frame; 341. rotating part; 35. locking frame; 4. notch; 5. roller; 6. pushing part; 7. pushing assembly; 71. pushing frame; 72. sleeve frame; 8. elastic member. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application embodiment discloses a solder wire. Figure 1 and Figure 2 The welding material tin wire includes an outer shell 1 and an inner core 2. The outer shell 1 is sleeved on the inner core 2. The outer shell 1 is made of tin alloy, and the inner core 2 is made of flux. A plurality of anti-skid grooves 11 are provided on the outer wall of the outer shell 1, and each anti-skid groove 11 is spiral. A rotating mechanism 3 is also provided on the outer shell 1. The rotating mechanism 3 includes a pushing frame 31. An embedded portion 311 extends from the bottom end of the pushing frame 31. The embedded portion 311 is embedded in one of the anti-skid grooves 11 and abuts against the inner wall of the corresponding anti-skid groove 11, so that the relevant personnel can drive the outer shell 1 to rotate by linearly pushing the pushing frame 31 to slide in the anti-skid groove 11 when lightly holding the outer shell 1 (at this time, the outer shell 1 can rotate relative to the hand of the relevant personnel).

[0033] Reference Figure 1 In the embodiment of the present application, the housing 1 is configured to be cylindrical, and six anti-skid grooves 11 are configured on the housing 1, and the six anti-skid grooves 11 are evenly and equidistantly distributed along the axis of the housing 1. The cross section of each anti-skid groove 11 is configured to be dovetail-shaped, and each is connected to the outside. The bottom end of the embedded portion 311 abuts against the inner bottom wall of the corresponding anti-skid groove 11.

[0034] Reference Figure 2 and Figure 3 The rotating mechanism 3 further includes an abutting frame 32, a rotating assembly 33 and a connecting frame 34, and the number of the abutting frames 32 and the rotating assembly 33 are both set to be multiple. In the embodiment of the present application, the number of the abutting frames 32 is set to three groups, and the three groups of abutting frames 32 are distributed along the length direction of the embedded portion 311. There are two abutting frames 32 in each group, and they are respectively located on both sides of the embedded portion 311 along its own width direction.

[0035] Reference Figure 1 , Figure 2 and Figure 3The outer walls of the embedded portion 311 on both sides along the width direction thereof are provided with three notches 4, and the notches 4 correspond to the abutment frames 32 one by one. Each abutment frame 32 is located in the corresponding notch 4, and one end of each abutment frame 32 away from the inner bottom wall of the anti-slip groove 11 is rotatably connected to the embedded portion 311 through a pin. The other end of each abutment frame 32 extends to the bottom of the corresponding notch 4, so that when the embedded portion 311 is not inserted into the anti-slip groove 11, the corresponding notch 4 can be closed.

[0036] Reference Figure 2 and Figure 3 The connecting frame 34 is located inside the pushing frame 31 and is slidably connected to the inner wall of the pushing frame 31, and the sliding direction is the height direction of the pushing frame 31. The connecting frame 34 has an end away from the inner bottom wall of the anti-slip groove 11, and a rotating portion 341 is extended. A locking frame 35 is sleeved on the rotating portion 341, and the locking frame 35 is rotatably connected to the rotating portion 341 through a bearing. The top end of the locking frame 35 extends out of the abutting frame 32 for relevant personnel to rotate.

[0037] Reference Figure 2 and Figure 3 A locking thread is also provided on the outer wall of the locking frame 35, and the locking thread is an external thread. The locking frame 35 is threadedly connected to the inner wall of the abutment frame 32 through the locking thread, so that relevant personnel can rotate the locking frame 35 so that the locking frame 35 is gradually screwed into the pushing frame 31, thereby locking the locking frame 35.

[0038] Reference Figure 2 and Figure 3 In the embodiment of the present application, the abutment frames 32 are arranged in three groups, and the rotational components 33 are arranged in three groups. The three groups of abutment frames 32 are arranged in one-to-one correspondence with the three rotational components 33. There are two abutment frames 32 in each group, and the two abutment frames 32 are located on both sides of the embedding portion 311 along its width direction.

[0039] Reference Figure 3 and Figure 4 Each rotating assembly 33 includes a rotating frame 331 and a driving member 332, and each driving member 332 includes a sliding frame 3321 and a plurality of driving frames 3322. In the embodiment of the present application, the rotating frames 331 in each rotating assembly 33 are arranged in two groups, and the two groups of rotating frames 331 are arranged in a one-to-one correspondence with the two abutting frames 32 in each group, and the driving frames 3322 in each driving member 332 are arranged in two groups, and the two groups of driving frames 3322 are arranged in a one-to-one correspondence with the two groups of rotating frames 331.

[0040] Reference Figure 2 , Figure 3 and Figure 4In the embodiment of the present application, two rotating frames 331 are provided in each rotating frame 331, and two driving frames 3322 are provided in each driving frame 3322. The two driving frames 3322 in each group are respectively located on both sides of the corresponding abutting frame 32 along its own width direction. The three sliding frames 3321 are distributed along the length direction of the embedded portion 311, and one end of each sliding frame 3321 is fixedly connected to the connecting frame 34.

[0041] Reference Figure 2 , Figure 3 and Figure 4 One end of each driving frame 3322 is rotatably connected to the corresponding sliding frame 3321 through a pin, and the other end of each driving frame 3322 is rotatably connected to one end of the corresponding rotating frame 331 through a pin. The other end of each rotating frame 331 is rotatably connected to one end of the embedded portion 311 away from the connecting frame 34 through a pin.

[0042] Reference Figure 3 A roller 5 is provided between the two rotating frames 331 in each group, and each roller 5 is rotatably connected to the corresponding two rotating frames 331 through a pin shaft, so that the roller 5 abuts against the corresponding abutting frame 32, thereby converting the sliding friction into rolling friction while driving the abutting frame 32, thereby reducing the friction force on the abutting frame 32.

[0043] Reference Figure 2 and Figure 3 In the initial state, that is, when the abutting frame 32 closes the gap 4, the sliding frame 3321 is located at the end of its own sliding path farthest from the rotating frame 331, and the roller 5 is not in contact with the abutting frame 32. When the relevant personnel rotate the locking frame 35 so that the locking frame 35 is gradually rotated into the pushing frame 31, the locking frame 35 drives the connecting frame 34 to slide.

[0044] Reference Figure 3 and Figure 4 During this process, the connecting frame 34 drives each sliding frame 3321 to slide, so that the sliding frame 3321 drives the corresponding rotating frame 331 away from one end of the driving frame 3322 to move toward the corresponding driving frame 3322, so that this end of the rotating frame 331 and the end of the corresponding driving frame 3322 away from the rotating frame 331 are close to each other.

[0045] Reference Figure 1 , Figure 2 and Figure 3At this time, the driving frame 3322 rotates relative to the sliding frame 3321, and the rotating frame 331 rotates relative to the embedded portion 311. In this process, the roller 5 on the rotating frame 331 gradually approaches the corresponding abutting frame 32 and abuts against the corresponding abutting frame 32, thereby pushing the bottom end of the abutting frame 32 to rotate outward of the embedded portion 311 and gradually approach the inner wall of the anti-slip groove 11.

[0046] Reference Figure 3 and Figure 4 , each sliding frame 3321 has a push portion 6 extending outwardly on the side walls on both sides of its width direction. Each abutting frame 32 has an extension portion 321 extending from one end away from the driving frame 3322, and the extension portion 321 is bent. A push component 7 is provided on each extension portion 321, and each push component 7 includes a push frame 71 and a sleeve frame 72. In the embodiment of the present application, each push component 7 includes two sleeve frames 72, and the two sleeve frames 72 are respectively located on both sides of the corresponding abutting frame 32 along its width direction.

[0047] Reference Figure 2 and Figure 4 Each set frame 72 is set on the corresponding extension part 321 and is slidably connected to the corresponding extension part 321. Each push frame 71 is located between the two set frames 72 and is rotatably connected to the corresponding two set frames 72 through a pin. Each push frame 71 slides with the inner wall of the embedded part 311, and the sliding direction is the same as the sliding direction of the sliding frame 3321. Each push frame 71 is located on the sliding path of the corresponding push part 6.

[0048] Reference Figure 4 , an elastic member 8 is provided on one side of each push-pull frame 71 close to the driving frame 3322. In the embodiment of the present application, the elastic member 8 is configured as a pressure spring, one end of each pressure spring is abutted against one end of the corresponding push-pull frame 71 close to the driving frame 3322, and the other end is abutted against the inner wall of the extension portion 321, so as to drive the corresponding push-pull frame 71 to reset through its own elastic force, thereby realizing the reset of the abutting frame 32.

[0049] Reference Figure 2 and Figure 4 In the initial state, that is, when the abutting frame 32 closes the notch 4, the abutting frame 71 is located at the end of its own sliding path farthest from the driving frame 3322. At this time, the abutting portion 6 on the sliding frame 3321 does not abut against the abutting frame 32. When the sliding frame 3321 slides toward the driving frame 3322, when the roller 5 pushes the abutting frame 32 to rotate, the abutting portion 6 gradually approaches the corresponding abutting frame 71.

[0050] Reference Figure 1 , Figure 2 and Figure 4When the push portion 6 abuts against the push frame 71, the push portion 6 drives the push frame 71 to slide, so that the push frame 71 drives the contact frame 32 to continue to rotate through the sleeve frame 72, so that the contact frame 32 continues to approach the inner wall of the anti-slip groove 11. In this process, the contact frame 32 gradually separates from the roller 5, and the sleeve frame 72 rotates relative to the push frame 71, and the sleeve frame 72 slides relative to the extension portion 321. In this process, the elastic member 8 is continuously compressed, thereby storing elastic potential energy.

[0051] The implementation principle of the solder wire of the welding material in the embodiment of the present application is as follows: when the pushing frame 31 needs to be installed on the housing 1, the embedded portion 311 is inserted into the corresponding anti-skid groove 11, and then the locking frame 35 is rotated so that the locking frame 35 is gradually screwed into the pushing frame 31. In this process, the locking frame 35 drives the connecting frame 34 to slide, and the connecting frame 34 drives each sliding frame 3321 to slide, so that the sliding frame 3321 drives the driving frame 3322 and the rotating frame 331 to move. At this time, the roller 5 on the rotating frame 331 gradually approaches the corresponding abutting frame 32 and abuts against the corresponding abutting frame 32, thereby pushing the bottom end of the abutting frame 32 to rotate outside the embedded portion 311 and gradually approach the outer wall of the anti-skid groove 11.

[0052] When the push portion 6 abuts against the push frame 71, the push portion 6 drives the push frame 71 to slide, so that the push frame 71 drives the abutting frame 32 to continue to rotate through the sleeve frame 72, so that the abutting frame 32 continues to approach the inner wall of the anti-slip groove 11. Finally, each abutting frame 32 is in contact with the inner wall of the anti-slip groove 11, and the locking frame 35 is screwed onto the pushing frame 31. After that, the relevant personnel can lightly hold the housing 1 and push the pushing frame 31, so that the housing 1 rotates in the hands of the relevant personnel.

[0053] The present application also provides a method for preparing a soldering material tin wire, comprising the following steps: S1, extrusion raw materials: melt the tin-copper alloy in the extruder and extrude it to the outer layer of the die head of the extruder, mix the flux raw materials, and extrude them to the inner layer of the die head of the extruder; S2, extrusion molding: the extruder extrude the tin-copper alloy and the soldering flux from the die head, so that the tin-copper alloy forms a thicker solder rod, and the soldering flux forms the inner core 2 of the solder rod; S3, stretching and twisting: the solder rod is stretched multiple times and twisted at the same time to stretch the solder rod into a thinner spiral solder wire; S4, cutting the anti-skid groove: After placing the solder wire on a special ring cutter, the ring cutter rotates around the solder wire and pulls the solder wire at the same time to cut out a spiral anti-skid groove 11.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soldering material tin wire, characterized in that: The invention comprises an outer shell (1) made of tin alloy and an inner core (2) made of flux, wherein the outer shell (1) is sleeved outside the inner core (2), and a plurality of anti-skid grooves (11) are provided on the outer wall of the outer shell (1), each of the anti-skid grooves (11) is spiral-shaped. The outer shell (1) is also provided with a rotating mechanism (3), and the rotating mechanism (3) comprises a pushing frame (31), and an embedded portion (311) extends from the bottom end of the pushing frame (31), and the embedded portion (311) is embedded in one of the anti-skid grooves (11) and abuts against the inner wall of the corresponding anti-skid groove (11).

2. The soldering material tin wire according to claim 1, characterized in that: The cross section of the anti-skid groove (11) is dovetail-shaped. The rotating mechanism (3) further comprises an abutment frame (32) and a rotating assembly (33). The number of the abutment frames (32) is set to be a plurality. One end of each abutment frame (32) is rotatably connected to the embedded portion (311), and the other end extends to the bottom of the corresponding anti-skid groove (11) and is in contact with the side wall of the anti-skid groove (11). The rotating assembly (33) is used to drive each abutment frame (32) to rotate.

3. The soldering material tin wire according to claim 2, characterized in that: The rotating assembly (33) comprises a rotating frame (331) and a driving member (332). The number of the rotating frames (331) is set to be a plurality and corresponds to the abutting frames (32) one by one. Each of the rotating frames (331) is located between the plurality of abutting frames (32). One end of each of the rotating frames (331) away from the rotating connection end of the corresponding abutting frame (32) is rotatably connected to the embedded portion (311). Each of the abutting frames (32) is located on the displacement path of the other end of the corresponding rotating frame (331). The driving member (332) is used to drive each abutting frame (32) to rotate.

4. The soldering material tin wire according to claim 3, characterized in that: The driving member (332) includes a sliding frame (3321) and a plurality of driving frames (3322); the sliding frame (3321) is slidably connected to the embedded portion (311); the driving frames (3322) correspond to the rotating frames (331) one by one; one end of each of the driving frames (3322) is rotatably connected to the sliding frame (3321); and one end of each of the rotating frames (331) away from the end rotatably connected to the embedded portion (311) is rotatably connected to the other end of the corresponding driving frame (3322).

5. The soldering material tin wire according to claim 4, characterized in that: An extension portion (321) is extended from one end of each rotating frame (331) away from the bottom of the corresponding anti-slip groove (11), and a push component (7) is arranged on each extending portion (321). A push portion (6) is also arranged on the sliding frame (3321), and the push portion (6) drives the corresponding abutting frame (32) to continue rotating by locking the push component (7).

6. The soldering material tin wire according to claim 5, characterized in that: The push-pushing assembly (7) comprises a push-pushing frame (71) and a sleeve frame (72); the push-pushing frame (71) is slidably connected to the embedded portion (311), and its sliding direction is the same as that of the sliding frame (3321), and is located on the displacement path of the push-pushing portion (6); the sleeve frame (72) is sleeved on the corresponding extension portion (321), and is slidably connected to the corresponding extension portion (321), and is rotationally connected to the corresponding push-pushing frame (71).

7. The soldering material tin wire according to claim 6, characterized in that: Each of the push-resisting frames (71) is provided with an elastic member (8), and the elastic member (8) is used to reset the corresponding push-resisting frame (71) through its own elastic force.

8. The soldering material tin wire according to claim 4, characterized in that: The sliding frame (3321) is also sleeved with a locking frame (35), the locking frame (35) is rotatably connected to the sliding frame (3321), and a locking thread is also provided on the outer wall of the locking frame (35), the locking frame (35) is threadedly connected to the abutting frame (32) via the locking thread, and one end of the locking frame (35) extends out of the abutting frame (32).

9. The soldering material tin wire according to claim 1, characterized in that: The number of the abutment frames (32) is set to be a plurality of groups, the number of the rotating components (33) is set to be a plurality of groups, and the plurality of groups of the abutment frames (32) correspond to the rotating components (33) one by one. The rotating mechanism (3) further comprises a connecting frame (34), and the connecting frame (34) is connected to each of the sliding frames (3321).

10. The method for preparing a soldering material tin wire according to claim 1, characterized in that: The steps include: Extrusion raw materials: melt the tin-copper alloy in the extruder and extrude it to the outer layer of the die head of the extruder, mix the flux raw materials and extrude them to the inner layer of the die head of the extruder; Extrusion molding: The extruder squeezes the tin-copper alloy and the flux out of the die head, so that the tin-copper alloy forms a thicker solder rod, and the flux forms the inner core of the solder rod (2); Stretching and twisting: The solder rod is stretched multiple times and twisted at the same time to stretch the solder rod into a thinner spiral solder wire; Cutting the anti-skid groove: After placing the solder wire on a special ring cutter, the ring cutter rotates around the solder wire and pulls the solder wire at the same time to cut out a spiral anti-skid groove (11).

Images