Tin breaking mechanism and tin breaking device

Abstract

The utility model relates to the technical field of tin cutting and breaking of tin wires, in particular to a tin breaking mechanism and a tin breaking device. The tin breaking mechanism comprises a guiding assembly, a tin breaking assembly and a driving part, the guiding assembly comprises a driving wheel and a guiding wheel, the driving wheel and the guiding wheel are arranged on the first shaft, and a guiding groove is formed in the periphery of the guiding wheel and used for containing a tin wire and limiting the tin wire; the tin breaking assembly comprises a driven wheel and a tin breaking knife, the driven wheel and the tin breaking knife are arranged on the second shaft, the driving wheel can drive the driven wheel to rotate, the driving wheel and the driven wheel are in speed reduction transmission, and the tin breaking knife is used for rolling and punching the tin wire; the driving part is used for driving the first shaft to rotate. The guide groove can limit the tin wire, so that the tin wire is right opposite to the tin breaking knife, and tin breaking leakage is not prone to occurring. The torque is amplified in the speed reduction transmission process, the traction force of the tin breaking cutter on the tin wire is larger, the tin wire moves more stably and smoothly in the tin breaking process, and the problem of repeated tin breaking is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of tin wire splitting and breaking tin, in particular to a tin breaking mechanism and a tin breaking device. Background Art

[0002] A tin-breaking and slitting device, also known as a tin-breaking and slitting machine, is a device used to create small holes in solder wire (tin wire) to improve flux volatilization during the soldering process, thereby improving soldering quality and reducing tin bombing. In existing tin-breaking and slitting devices, the tin wire needs to be guided and positioned by the tin-breaking mechanism so that the tin-breaking blade or knife-shaped gear can accurately create the small hole in the solder wire.

[0003] However, in actual use, especially for thicker solder wires, the tin breaking mechanism and the solder wire are prone to relative movement, resulting in uneven soldering, which can easily lead to missed or repeated soldering. These problems not only reduce the efficiency of the tin breaking and tin splitting machine, but also affect the quality of the solder wire, which in turn has a negative impact on soldering quality, such as poor solder joints and solder bead splashing. Utility Model Content

[0004] The main technical problem solved by the utility model is that during the actual use of the tin breaking and splitting machine, relative movement between the tin breaking mechanism and the tin wire is likely to occur, resulting in poor tin wire transportation.

[0005] According to the first aspect, an embodiment provides a tin breaking mechanism, including a guide assembly, a tin breaking assembly and a driving member, the guide assembly including a driving wheel and a guide wheel, the driving wheel and the guide wheel are arranged on a first shaft, the outer periphery of the guide wheel is provided with a guide groove, the guide groove is used to accommodate the tin wire and limit the tin wire; the tin breaking assembly includes a driven wheel and a tin breaking knife, the driven wheel and the tin breaking knife are arranged on a second shaft, the driving wheel can drive the driven wheel to rotate, and there is a reduction transmission between the driving wheel and the driven wheel, the outer periphery of the tin breaking knife is provided with multiple cutter heads, the cutter heads are located in the guide groove, and are used to roll and punch the tin wire; the driving member is used to drive the first shaft to rotate.

[0006] In some embodiments, the guide assembly includes a first fastener, which is arranged along the axial direction of the first shaft and fixes the guide wheel and the driving wheel.

[0007] In some embodiments, the guide assembly includes a first pressing block, the first fastener fixes the first pressing block, the guide wheel and the driving wheel in sequence along the axial direction of the first shaft, and the first pressing block is fixedly connected to the first shaft.

[0008] In some embodiments, the guide assembly includes a first push screw, which is assembled on the first pressing block along the radial direction of the first shaft and is used to abut the first shaft to fix the guide assembly to the first shaft.

[0009] In some embodiments, the tin-breaking assembly includes a second fastener, which is arranged along the axial direction of the second shaft and fixedly connects the driven wheel and the tin-breaking knife.

[0010] In some embodiments, the tin-breaking assembly includes a second pressing block, which is fixedly connected to the second shaft to limit the driven wheel and the tin-breaking knife along the axial direction of the second shaft.

[0011] In some embodiments, the tin breaking assembly includes a second push screw, the second pressing block is provided with a through hole extending radially along the second axis, the second push screw is assembled in the through hole and abuts against the second axis.

[0012] In some embodiments, the guide wheel includes a first wheel and a second wheel, the first wheel and the second wheel are both disposed on the first shaft, and the guide groove is formed between the first wheel and the second wheel.

[0013] In some embodiments, the guide groove is a V-shaped groove, and locking teeth are provided on both groove walls of the V-shaped groove.

[0014] According to the second aspect, an embodiment provides a tin breaking device, including a tin feeding unit and a tin breaking unit. The tin feeding unit is used to transport the tin wire to the tin breaking unit. The tin breaking unit is the tin breaking mechanism described in any of the above embodiments and is used to punch holes in the tin wire.

[0015] According to the tin-breaking mechanism of the above embodiment, a guide groove is provided on the guide wheel, and the tin-breaking knife is located in the guide groove. The active wheel drives the driven wheel to rotate, and the driven wheel then drives the tin-breaking knife to punch holes in the tin wire in the guide groove. During the above process, the guide groove can limit the tin wire so that the tin wire faces the tin-breaking knife, and it is not easy to leak tin. The deceleration transmission process realizes the amplification of torque, the tin-breaking knife has a greater traction force on the tin wire, and the movement of the tin wire during the tin-breaking process is more stable and smooth, and the problem of repeated tin-breaking is not easy to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional view of an embodiment of the tin-breaking device of the utility model;

[0017] Figure 2 for Figure 1 A top view of the tin breaking device;

[0018] Figure 3 for Figure 2Cross-sectional view at the middle BB.

[0019] Figure 4 hour Figure 3 Magnified view of section A.

[0020] Figure 5 for Figure 1 Schematic diagram of the cover plate of the tin breaking device.

[0021] Reference numerals:

[0022] 1. Base; 11. First side wall; 12. Second side wall; 13. Second shaft; 2. Tin feeding unit; 3. Tin discharging unit; 4. Guide assembly; 41. Driving wheel; 42. Guide wheel; 421. Guide groove; 422. First wheel; 423. Second wheel; 43. First fastener; 44. First pressure block; 45. First push screw; 5. Tin breaking assembly; 51. Driven wheel; 52. Tin breaking knife; 53. Second fastener; 54. Second pressure block; 55. Second push screw; 56. Baffle; 57. Gasket; 6. Driving member; 61. First shaft; 7. Cover plate; 8. Tin wire. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted under different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0024] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0025] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0026] When using a tin-breaking machine, uneven tin-breaking, such as missing tin or repeated tin-breaking, can affect subsequent soldering results. Considering the varying thicknesses and specifications of tin wires, improvements have been made to the tin-breaking machine. On the one hand, a guide groove positions the tin wire, ensuring the tin-breaking knife is aligned with the wire. On the other hand, increased traction during the tin-breaking process ensures smoother wire transport, thereby resolving these issues.

[0027] According to the first aspect, please refer to Figure 1 In one embodiment, a tin breaking device is provided, comprising a base 1, a tin feeding unit 2, a tin breaking unit, and a tin discharging unit 3. The base 1 comprises a first side wall 11 and a second side wall 12 arranged opposite each other. The tin feeding unit 2 and the tin discharging unit 3 are respectively disposed on the first side wall 11 and the second side wall 12. The tin breaking unit is disposed on the main body of the base 1 and is located between the first side wall 11 and the second side wall 12. The tin feeding unit 2 is used to guide the tin wire 8 to the tin breaking unit, which is used to punch holes in the tin wire 8. The tin discharging unit 3 is used to lead the punched tin wire 8 out of the tin breaking device. The led-out tin wire 8 can be used for soldering.

[0028] Please refer to Figures 1-4 The tin breaking unit includes a guide assembly 4, a tin breaking assembly 5, and a drive member 6. The guide assembly 4 includes a driving wheel 41 and a guide wheel 42. The driving wheel 41 and the guide wheel 42 are arranged on a first shaft 61. The outer periphery of the guide wheel 42 is provided with a guide groove 421 for accommodating and limiting the position of the tin wire 8. The drive member 6 is used to drive the first shaft 61 to rotate.

[0029] In some specific embodiments, the driving member 6 can be a motor, which is fixedly connected to the base 1, and the drive shaft of the motor forms the above-mentioned first shaft 61. The driving wheel 41 and the guide wheel 42 are fixedly connected to the first shaft 61. Specifically, the connection method between the driving wheel 41 and the guide wheel 42 and the first shaft 61 can be: key connection, interference fit, or welding. Alternatively, the driving wheel 41 and the guide wheel 42 are fixedly connected, and one of them is fixedly connected to the first shaft 61 in the above-mentioned manner. The guide groove 421 can be shaped as a V-groove or an arc-shaped groove that adapts to the outer shape of the tin wire 8.

[0030] After the tin feeding unit 2 sends the tin wire 8 to the tin breaking unit, the tin wire 8 is located in the guide groove 421. The guide groove 421 can limit the tin wire 8, and the tin breaking knife 52 can face the tin wire 8. It is not easy to have uneven tin breaking problems such as tin breaking position deviation and tin leakage during punching.

[0031] Please refer to Figures 1-4The tin breaking assembly 5 includes a driven wheel 51 and a tin breaking blade 52, which are mounted on the second shaft 13. The driving wheel 41 is capable of driving the driven wheel 51 to rotate, and a reduction transmission is provided between the driving wheel 41 and the driven wheel 51. The tin breaking blade 52 can be in the shape of a thin gear, with multiple sharp-angled blades disposed on its periphery. The blades are located in the guide groove 421. When the tin breaking blade 52 rotates, it can roll and punch holes in the tin wire 8 in the guide groove 421.

[0032] In some specific embodiments, a second shaft 13 is provided on the base 1, and the second shaft 13 can be integral with the base 1. The driven wheel 51 and the tin-breaking knife 52 are fixedly connected and rotatably assembled on the second shaft 13. Alternatively, the second shaft 13 and the base 1 are rotatably connected via a bearing, and the driven wheel 51 and the tin-breaking knife 52 are both fixedly connected to the second shaft 13. The fixed connection method is not limited and can include, for example, a key connection, an interference fit, or welding.

[0033] The driving wheel 41 and the driven wheel 51 can be meshing gears, with the diameter of the driving wheel 41 being smaller than that of the driven wheel 51. Alternatively, the driving wheel 41 and the driven wheel 51 can be driven by other gears or gear sets, in which case it is sufficient that the driving wheel 41 and the driven wheel 51 are reduced speed. Alternatively, the driving wheel 41 and the driven wheel 51 can be pulleys, driven by a transmission belt, with the diameter of the driving wheel 41 being smaller than that of the driven wheel 51.

[0034] In the above embodiment, there is a reduction transmission between the driving wheel 41 and the driven wheel 51, and the transmission process realizes the amplification of torque. The tin-breaking knife 52 has a greater traction force on the tin wire 8. The blade head of the tin-breaking knife 52 is not easy to slip relative to the tin wire 8, and can meet the traction requirements of thicker tin wire 8. The movement of the tin wire 8 during the tin-breaking process is more stable and smooth, and the problem of repeated tin-breaking is not easy to occur.

[0035] In some embodiments, please refer to Figures 1-4 The guide assembly 4 includes a first fastener 43, which is arranged axially along the first shaft 61 and secures the guide wheel 42 to the driving wheel 41. The first fastener 43 can be a bolt. Both the guide wheel 42 and the driving wheel 41 are provided with fixing holes, through which the first fastener 43 securely connects the guide wheel 42 to the driving wheel 41. This securement by the first fastener 43 ensures synchronized rotation between the driving wheel 41 and the guide wheel 42, allowing the guide wheel 42 to drive the movement of the tin wire 8.

[0036] In other embodiments, the first fastener 43 may also be a pin.

[0037] In some embodiments, please refer to Figure 1The guide assembly 4 includes a first pressing block 44. The first fastener 43 sequentially fixes the first pressing block 44, the guide wheel 42, and the driving wheel 41 along the axial direction of the first shaft 61. The first pressing block 44 is fixedly connected to the first shaft 61. The first pressing block 44 can be sleeved on the first shaft 61. The first fastener 43 sequentially passes through the first pressing block 44, the guide wheel 42, and the driving wheel 41 to fix the three.

[0038] The guide assembly 4 includes a first push screw 45, which is assembled on the first pressing block 44 along the radial direction of the first shaft 61 and is used to abut the first shaft 61 to secure the guide assembly 4 to the first shaft 61. Multiple first push screws 45 may be provided, with the multiple first push screws 45 spaced apart along the circumference of the first pressing block 44. Alternatively, the first pressing block 44 and the first shaft 61 may be secured by pins or welding.

[0039] In the above embodiment, in the guide assembly 4, the driving wheel 41, guide wheel 42, and first pressure block 44 are secured by a first fastener 43, and the first pressure block 44 is secured to the first shaft 61 by a first push screw 45. The guide assembly forms a completely detachable module. To disassemble and replace a component within the guide assembly 4, only the first push screw 45 and first fastener 43 need to be removed, providing a convenient solution. This modular design is suitable for desoldering solder wires 8 of varying specifications, making component replacement more convenient.

[0040] In some embodiments, please refer to Figure 1 and Figure 2 The tin breaking assembly 5 includes a second fastener 53, which is arranged axially along the second shaft 13 and securely connects the driven wheel 51 to the tin breaking blade 52. The second fastener 53 can be a bolt, which passes through the driven wheel 51 and the tin breaking blade 52 in the axial direction of the second shaft 13 and secures them together (the figure shows the rear end face of the second fastener 53). The second fastener 53 secures the driven wheel 51 and the tin breaking blade 52, allowing the driven wheel 51 to drive the tin breaking blade 52 to rotate synchronously, thereby rolling and punching the tin wire 8 in the guide groove 421.

[0041] In some embodiments, please refer to Figures 1-4 The tin breaking assembly 5 includes a second pressing block 54, which is fixedly connected to the second shaft 13 to limit the driven wheel 51 and the tin breaking knife 52 along the axial direction of the second shaft 13. The second pressing block 54 can be a cylindrical block, which is mounted on the second shaft 13. The cylindrical block is provided with a through hole extending radially along the second shaft 13 in the circumferential direction. The tin breaking assembly 5 includes a second push screw 55, which is assembled in the through hole and abuts against the second shaft 13. There can be multiple through holes and second push screws 55, which are arranged at intervals along the circumference of the second pressing block 54.

[0042] In other embodiments, the second pressing block 54 may also be fixedly connected to the second shaft 13 via a pin.

[0043] In the above embodiment, the second pressing block 54 is provided to limit the driven wheel 51 and the tin-breaking knife 52 along the axial direction of the second shaft 13, so that the tin-breaking knife 52 can be aligned with the tin wire 8 in the guide groove 421, while also preventing the driven wheel 51 and the tin-breaking knife 52 from falling off the second shaft 13.

[0044] In some embodiments, please refer to Figures 1-4 The guide wheel 42 includes a first wheel 422 and a second wheel 423. Both wheels 422 and 423 are mounted on the first shaft 61, with a guide groove 421 formed between them. The guide groove 421 is a V-shaped groove with latching teeth on both sides. The first wheel 422 and the second wheel 423 are sleeved on the first shaft 61 and overlapped together. The first fastener 43 passes through the first wheel 422 and the second wheel 423 to secure them together.

[0045] In the above embodiment, the guide groove 421 is configured as a V-shaped groove, which can accommodate and position tin wires 8 of different diameters. During use, the tip of the tin-breaking knife 52 is simply adjusted to align with the bottom of the V-shaped groove to roller-punch tin wires 8 of different specifications. The provision of latching teeth on the groove wall of the V-shaped groove increases friction between the guide wheel 42 and the tin wire 8, thereby enhancing the traction effect of the guide wheel 42 on the tin wire 8.

[0046] In some embodiments, please refer to Figures 1-4 The tin breaking assembly 5 also includes a stopper 56 and a gasket 57, both of which are disposed on the second shaft 13 and located on the first and second axial sides of the tin breaking blade 52, respectively. The stopper 56 and gasket 57 facilitate adjustment of the position of the tin breaking blade 52 on the second shaft 13, aligning the tin breaking blade 52 with the tin wire 8 within the guide groove 421. Furthermore, the stopper 56 and gasket 57 provide a stable clamping effect on the tin breaking blade 52, preventing it from deflecting during rotation and achieving a better tin breaking effect.

[0047] In some embodiments, please refer to Figure 5 The base 1 is further provided with a cover plate 7, which can be made of a transparent material and is detachably connected to the first side wall 11 and the second side wall 12 of the base 1 by fastening screws. The transparent cover plate 7 can shield the tin breaking unit and play a role in protecting the operator. At the same time, the transparent cover plate 7 makes it easy for the operator to observe whether the movement of the tin wire 8 is smooth and stable and whether the punching effect is good.

[0048] According to the second aspect, an embodiment provides a tin-breaking mechanism, the structure of which is the same as the structure of the tin-breaking unit described in any of the above embodiments, and will not be repeated here.

[0049] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A tin breaking mechanism, characterized in that: include: A guide assembly, the guide assembly comprising a driving wheel and a guide wheel, the driving wheel and the guide wheel being arranged on a first shaft, the outer periphery of the guide wheel being provided with a guide groove, the guide groove being used to accommodate the tin wire and limit the tin wire; A tin breaking assembly, comprising a driven wheel and a tin breaking knife, wherein the driven wheel and the tin breaking knife are arranged on a second shaft, the driving wheel can drive the driven wheel to rotate, and a reduction transmission is provided between the driving wheel and the driven wheel, and a plurality of cutter heads are provided on the periphery of the tin breaking knife, the cutter heads are located in the guide groove and are used to roll and punch the tin wire; A driving member is used to drive the first shaft to rotate.

2. The tin breaking mechanism according to claim 1, characterized in that: The guide assembly includes a first fastener, which is arranged along the axial direction of the first shaft and fixes the guide wheel and the driving wheel.

3. The tin breaking mechanism according to claim 2, characterized in that: The guide assembly includes a first pressing block. The first fastener fixes the first pressing block, the guide wheel and the driving wheel in sequence along the axial direction of the first shaft. The first pressing block is fixedly connected to the first shaft.

4. The tin breaking mechanism according to claim 3, characterized in that: The guide assembly includes a first push screw, which is assembled on the first pressing block along the radial direction of the first shaft and is used to abut against the first shaft to fix the guide assembly to the first shaft.

5. The tin breaking mechanism according to claim 1, characterized in that: The tin-breaking assembly includes a second fastener, which is arranged along the axial direction of the second shaft and fixedly connects the driven wheel and the tin-breaking knife.

6. The tin breaking mechanism according to claim 5, characterized in that: The tin-breaking assembly includes a second pressing block, which is fixedly connected to the second shaft to limit the driven wheel and the tin-breaking knife along the axial direction of the second shaft.

7. The tin breaking mechanism according to claim 6, characterized in that: The tin breaking assembly includes a second push screw. The second pressing block is provided with a through hole extending radially along the second axis. The second push screw is assembled in the through hole and abuts against the second axis.

8. The tin breaking mechanism according to any one of claims 1 to 6, characterized in that: The guide wheel includes a first wheel and a second wheel. The first wheel and the second wheel are both arranged on the first shaft. The guide groove is formed between the first wheel and the second wheel.

9. The tin breaking mechanism according to any one of claims 1 to 6, characterized in that: The guide groove is a V-shaped groove, and both groove walls of the V-shaped groove are provided with latch teeth.

10. A tin breaking device, characterized in that: It comprises a tin feeding unit and a tin breaking unit. The tin feeding unit is used to transport the tin wire to the tin breaking unit. The tin breaking unit is the tin breaking mechanism according to any one of claims 1 to 9 and is used to punch holes in the tin wire.

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