Continuous tin plating mechanism for high-precision copper alloy wire

Abstract

The utility model discloses a high-precision copper alloy wire continuous tinning mechanism, which belongs to the technical field of copper alloy wire tinning, and comprises a support mechanism and a threading mechanism, a hot tinning mechanism for tinning wires is welded and fixed on the support mechanism, and the threading mechanism is welded and fixed on the hot tinning mechanism. The hot tinning mechanism is in bolted connection with a threading mechanism used for immersing wires into tin liquid, and the hot tinning mechanism is hinged to a cover body mechanism. According to the utility model, through the arrangement of the hot tinning mechanism and the threading mechanism, the threading mechanism can be lifted to the same height as the lead frame, so that a worker can conveniently perform threading, and when a wire is broken, the wire can be continued without liquid drainage; the ultrasonic-assisted tin plating and tin liquid stirring are realized, so that the tin plating efficiency is improved, a plating layer is more uniform, the heat loss of the tin liquid is reduced, and the energy is effectively saved.

Description

Technical Field

[0001] This utility model relates to the field of copper alloy wire tin plating technology, and in particular to a high-precision continuous tin plating mechanism for copper alloy wire. Background Technology

[0002] Copper alloy wire is a metal wire made by adding other alloying elements to copper. It combines the good electrical and thermal conductivity of copper with the high strength and corrosion resistance of alloys. It is widely used in electronics, machinery and other fields. Tin plating can enhance the oxidation resistance of copper alloy wire, improve its welding performance, make it more reliable in the connection of electronic components, and improve its appearance. It can also improve its practicality and meet certain aesthetic requirements, thus broadening the application of copper alloy wire in different scenarios.

[0003] When continuously tinning copper alloy wires, hot-dip tinning mechanisms are often used to assist in the tinning process. Existing hot-dip tinning mechanisms mainly consist of a tinning bath, a heating system, and a wire conveying device. Although these mechanisms can tin-plate copper alloy wires, in actual use, they lack a lifting and lowering wire pressing mechanism. During wire threading, the wire holes are not at the same height, making threading difficult and reducing efficiency. When the wire breaks and needs to be continued, the tin liquid must be emptied to expose the wire hole inside the bath, resulting in tin liquid waste and energy waste. Existing hot-dip tinning mechanisms also lack the cavitation effect of ultrasonic transducers. During tin layer crystallization, the grain growth direction is unidirectional, easily forming coarse grains, which reduces the hardness, toughness, and corrosion resistance of the tin layer. Existing hot-dip tinning mechanisms also lack a stirring structure, resulting in slow internal flow of the tin liquid and differences in tin ion concentration at different locations. During tinning, different parts of the workpiece come into contact with different amounts of tin ions, leading to inconsistent tin layer thickness and affecting the stability of product appearance and performance.

[0004] Therefore, there is an urgent need to provide a high-precision continuous tin plating mechanism for copper alloy wires to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-precision continuous tin plating mechanism for copper alloy wires.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a high-precision continuous tin plating mechanism for copper alloy wire is provided, including a support mechanism and a wire threading mechanism. A hot-dip tin plating mechanism for tin plating the wire is welded and fixed on the support mechanism, and a wire threading mechanism for immersing the wire in molten tin is bolted to the hot-dip tin plating mechanism.

[0007] A cover mechanism is hinged to the hot-dip tinning mechanism;

[0008] The cover mechanism is equipped with a stirring mechanism for stirring and improving the uniformity of the molten tin.

[0009] The present invention is further configured such that: the support mechanism includes a frame, a cross brace is welded and fixed on the frame, a wire frame one is fixed at one end of the frame, a wire frame two is fixed at the other end of the frame, and a plurality of spring locks are also fixed on the frame.

[0010] Through the above technical solution, the cross brace can effectively improve the strength of the frame. Both wire frame one and wire frame two are fixed with multiple rings that allow wires to pass through. The inner edge of the ring is rounded, which can effectively prevent the wires from scratching the rings.

[0011] The present invention is further configured such that: the hot-dip tinning mechanism includes a tinning bath welded to the frame, a plurality of heating plates are fixed to the bottom of the tinning bath, an inlet is fixed to the tinning bath, an outlet is also fixed to the tinning bath, and a plurality of ultrasonic transducers are fixed to the outside of the tinning bath.

[0012] Through the above technical solution, the tin plating bath can be filled with molten tin, the heating plate can continuously heat the molten tin to prevent it from cooling down, the inlet can be connected to an external liquid supply device to supply molten tin to the device, and the outlet can be connected to an external drain valve and drain pipe to discharge the molten tin. The ultrasonic transducer can refine the grains, reduce the surface tension between the plating solution and the workpiece, so that the plating solution can better wet the workpiece and prevent incomplete plating. It can also accelerate the diffusion of tin ions to the workpiece surface and the departure of reaction products, thereby improving the efficiency and uniformity of tin plating.

[0013] The present invention is further configured such that: the threading mechanism includes a mounting frame bolted to the tin plating bath, a lifting push rod is fixed on the mounting frame, a wire pressing frame is fixed on the telescopic end of the lifting push rod, and two limiting slide rods are fixed on the wire pressing frame.

[0014] With the above technical solution, multiple rings that allow wires to pass through are linearly distributed on the crimping frame. The mounting frame is gantry-shaped, and the lifting push rod can be pneumatic, hydraulic, or electric. The mounting frame, the output end of the lifting push rod, and the limit slide rod can all be made of alloy material with low thermal conductivity. When the lifting push rod extends, the crimping frame will descend and be immersed in the molten solder; conversely, the crimping frame will rise. The limit slide rod is slidably connected to the mounting frame, effectively ensuring the stability of the crimping frame during the lifting process.

[0015] The present invention is further configured such that: the cover mechanism includes a cover body hinged to the tin plating bath, one end of the cover body is fixed with a locking hook, the top end of the cover body is fixed with a handle, three bearings are also fixed on the cover body, and a motor frame is also fixed on the top end of the cover body.

[0016] The above technical solution provides two cover mechanisms. The cover body is made of heat-insulating material. When the cover body is closed, it can effectively keep the molten tin in the tin plating bath warm, reduce heat waste, and reduce local caking of the molten tin due to cooling. The locking hook and spring lock are positioned correspondingly, and the cover body can be locked by the spring lock and the locking hook.

[0017] The present invention is further configured such that: the stirring mechanism includes a stirring motor fixed on a motor frame, a stirring rod is fixed at the output end of the stirring motor, a stirring head is fixed at the end of the stirring rod, a pulley is fixed on the stirring rod, a transmission belt is sleeved on the outside of the pulley, a second pulley is nested at the end of the transmission belt, and a second stirring rod is fixed on the second pulley.

[0018] With the above technical solution, when the stirring motor starts, stirring rod one can drive the stirring head to rotate, thereby stirring the molten tin. The end of stirring rod two is also fixed with a stirring head. When stirring rod one rotates, it can also drive pulley one to rotate. Pulley one drives pulley two and stirring rod two to rotate through transmission belt one.

[0019] The present invention is further configured such that: a pulley three is fixed on the stirring rod one, a transmission belt two is sleeved on the pulley three, a pulley four is nested at the end of the transmission belt two, and the stirring rod three is fixed on the pulley four.

[0020] With the above technical solution, a stirring head is also fixed at the end of the stirring rod three. When the stirring rod one rotates, it can also drive the pulley three to rotate. The pulley three drives the pulley four to rotate through the transmission belt two, which in turn drives the stirring rod three to rotate. The joint rotation of the stirring rod one, stirring rod two and stirring rod three can more thoroughly stir the molten tin and improve the stirring effect.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This utility model, through the setting of a hot-dip tinning mechanism and a threading mechanism, allows the threading mechanism to be raised to the same height as the wire frame, thereby facilitating the threading of workers, and allowing the reconnection of the wire without draining liquid when it breaks;

[0023] 2. This utility model achieves ultrasonic-assisted tin plating and molten tin stirring through the setting of a hot-dip tin plating mechanism, a cover mechanism, and a stirring mechanism, thereby improving tin plating efficiency, making the plating layer more uniform, and reducing the heat loss of the molten tin, effectively saving energy. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a structural diagram of the support mechanism of this utility model;

[0026] Figure 3 This is a structural diagram of the hot-dip tin plating mechanism of this utility model;

[0027] Figure 4 This is a structural diagram of the threading mechanism of this utility model;

[0028] Figure 5 This is a structural diagram of the cover mechanism of this utility model;

[0029] Figure 6 This is a structural diagram of the stirring mechanism of this utility model.

[0030] In the diagram: 1. Support mechanism; 101. Frame; 102. Cross brace; 103. Wire guide frame one; 104. Wire guide frame two; 105. Spring lock; 2. Hot-dip tinning mechanism; 201. Tin plating bath; 202. Heating plate; 203. Liquid inlet; 204. Liquid outlet; 205. Ultrasonic transducer; 3. Wire threading mechanism; 301. Mounting bracket; 302. Lifting push rod; 303. Wire clamping bracket; 304. Limiting slide rod; 4. Cover 401. Body of the cover; 402. Locking hook; 403. Handle; 404. Bearing; 405. Motor frame; 5. Stirring mechanism; 501. Stirring motor; 502. Stirring rod one; 503. Stirring head; 504. Pulley one; 505. Drive belt one; 506. Pulley two; 507. Stirring rod two; 508. Pulley three; 509. Drive belt two; 510. Pulley four; 511. Stirring rod three. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0032] Please see Figures 1-6 A high-precision continuous tin plating mechanism for copper alloy wire includes a support mechanism 1 and a wire threading mechanism 3. The support mechanism 1 includes a frame 101, on which a cross brace 102 is welded and fixed. A wire guide frame 103 is fixed at one end of the frame 101, and a wire guide frame 2 104 is fixed at the other end of the frame 101. Multiple spring locks 105 are also fixed on the frame 101. The cross brace 102 can effectively improve the strength of the frame 101. Multiple rings for wires to pass through are fixed on both the wire guide frame 103 and the wire guide frame 2 104. The inner edge of the ring has a rounded corner structure, which can effectively prevent the wire from scratching the ring.

[0033] like Figure 1 and Figure 3As shown, a hot-dip tinning mechanism 2 for tinning wire is welded and fixed on the support mechanism 1. The hot-dip tinning mechanism 2 includes a tinning bath 201 welded to the frame 101. Multiple heating plates 202 are fixed to the bottom of the tinning bath 201. An inlet 203 is fixed on the tinning bath 201. An outlet 204 is also fixed on the tinning bath 201. Multiple ultrasonic transducers 205 are also fixed to the outside of the tinning bath 201. The tinning bath 201 can be filled with molten tin. The heating plates 202 can continuously heat the molten tin to prevent it from cooling down. The inlet 203 can be connected to an external liquid supply device to supply molten tin to the device. The outlet 204 can be connected to an external drain valve and drain pipe to discharge the molten tin. The ultrasonic transducers 205 can refine the grains, reduce the surface tension between the plating solution and the workpiece, so that the plating solution can better wet the workpiece and prevent incomplete plating. They can also accelerate the diffusion of tin ions to the workpiece surface and the departure of reaction products, thereby improving the tinning efficiency and uniformity.

[0034] like Figure 1 and Figure 4 As shown, a wire-threading mechanism 3 for immersing wires in molten tin is bolted to the hot-dip tinning mechanism 2. The wire-threading mechanism 3 includes a mounting frame 301 bolted to the tin plating bath 201. A lifting push rod 302 is fixed on the mounting frame 301. A wire pressing frame 303 is fixed to the telescopic end of the lifting push rod 302. Two limiting slide rods 304 are fixed on the wire pressing frame 303. Multiple rings for wires to pass through are also linearly distributed on the wire pressing frame 303. The mounting frame 301 is gantry-shaped. The lifting push rod 302 can be pneumatic, hydraulic, or electric. The mounting frame 301, the output end of the lifting push rod 302, and the limiting slide rods 304 can all be made of alloy material with low thermal conductivity. When the lifting push rod 302 extends, the wire pressing frame 303 will descend and be immersed in the molten tin. Conversely, the wire pressing frame 303 will rise. The limiting slide rods 304 are slidably connected to the mounting frame 301, effectively ensuring the stability of the wire pressing frame 303 during the lifting process.

[0035] like Figure 1 and Figure 5 As shown, a cover mechanism 4 is hinged to the hot-dip tin plating mechanism 2. The cover mechanism 4 includes a cover body 401 hinged to the tin plating bath 201. A locking hook 402 is fixed to one end of the cover body 401, a handle 403 is fixed to the top of the cover body 401, three bearings 404 are also fixed to the cover body 401, and a motor frame 405 is also fixed to the top of the cover body 401. There are two cover mechanisms 4. The cover body 401 is made of heat-insulating material. When the cover body 401 is closed, it can effectively keep the tin liquid in the tin plating bath 201 warm, reduce heat waste, and reduce the local caking of the tin liquid due to cooling. The locking hook 402 corresponds to the position of the spring lock 105. The cover body 401 can be locked by the spring lock 105 and the locking hook 402.

[0036] like Figure 1 and Figure 6 As shown, a stirring mechanism 5 for improving the uniformity of molten tin is installed on the cover mechanism 4. The stirring mechanism 5 includes a stirring motor 501 fixed on a motor frame 405. A stirring rod 502 is fixed to the output end of the stirring motor 501. A stirring head 503 is fixed to the end of the stirring rod 502. A pulley 504 is fixed to the stirring rod 502. A transmission belt 505 is sleeved on the outside of the pulley 504. A pulley 506 is nested at the end of the transmission belt 505. A stirring rod 507 is fixed to the pulley 506. A pulley 508 is also fixed to the stirring rod 502. A transmission belt 509 is sleeved on the pulley 508. A pulley 510 is nested at the end of the transmission belt 509. A stirring rod 511 is fixed to the pulley 510. When the stirring motor 501 starts, stirring rod 502 drives stirring head 503 to rotate, thereby stirring the molten solder. Stirring head 503 is also fixed to the end of stirring rod 507. When stirring rod 502 rotates, it also drives pulley 504 to rotate. Pulley 504 drives pulley 506 and stirring rod 507 to rotate via transmission belt 505. Stirring head 503 is also fixed to the end of stirring rod 511. When stirring rod 502 rotates, it also drives pulley 508 to rotate. Pulley 508 drives pulley 510 to rotate via transmission belt 509, thereby driving stirring rod 511 to rotate. The combined rotation of stirring rod 502, stirring rod 507, and stirring rod 511 can more thoroughly stir the molten solder and improve the stirring effect.

[0037] In use, this device works in conjunction with a wire feeding device and a wire winding device. The operator first lifts the cover mechanism 4, passes multiple strands of copper alloy wire through the wire guide frame 103, the wire pressing frame 303, and the wire guide frame 204. Then, a certain amount of molten tin is injected into the tin plating bath 201 via the injection device, and the heating plate 202 is turned on to heat the molten tin. The operator then operates the wire feeding mechanism 3 to immerse the wire pressing frame 303 in the molten tin. The cover mechanism 4 is then closed, and the ultrasonic transducer 205 and the winding device are turned on. The winding device then winds the wire. During the winding process, the copper alloy wire passes through the tin plating bath 201, resulting in a tin layer being deposited on the surface of the copper alloy wire. When the wire breaks, the operator can open the cover mechanism 4 and raise the wire feeding mechanism 3 to continue the wire connection. This allows for wire connection without draining the molten tin, reducing waste of molten tin and energy.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-precision continuous tin plating mechanism for copper alloy wire, comprising a support mechanism (1) and a wire threading mechanism (3), characterized in that: A hot-dip tinning mechanism (2) for tinning wire is welded and fixed on the support mechanism (1), and a wire threading mechanism (3) for immersing wire in molten tin is bolted to the hot-dip tinning mechanism (2). The hot-dip tinning mechanism (2) is hinged to a cover mechanism (4). The cover mechanism (4) is equipped with a stirring mechanism (5) for stirring and improving the uniformity of the molten tin.

2. The high-precision continuous tin plating mechanism for copper alloy wire according to claim 1, characterized in that: The support mechanism (1) includes a frame (101), on which a cross brace (102) is welded and fixed. A wire frame one (103) is fixed at one end of the frame (101), and a wire frame two (104) is fixed at the other end of the frame (101). Multiple spring locks (105) are also fixed on the frame (101).

3. The high-precision continuous tin plating mechanism for copper alloy wire according to claim 2, characterized in that: The hot-dip tin plating mechanism (2) includes a tin plating bath (201) welded to the frame (101), a plurality of heating plates (202) are fixed at the bottom of the tin plating bath (201), an inlet (203) is fixed on the tin plating bath (201), an outlet (204) is also fixed on the tin plating bath (201), and a plurality of ultrasonic transducers (205) are also fixed on the outside of the tin plating bath (201).

4. The high-precision continuous tin plating mechanism for copper alloy wire according to claim 3, characterized in that: The threading mechanism (3) includes a mounting bracket (301) bolted to a tin plating bath (201), a lifting push rod (302) fixed on the mounting bracket (301), a wire pressing frame (303) fixed to the telescopic end of the lifting push rod (302), and two limiting slide rods (304) fixed on the wire pressing frame (303).

5. The high-precision continuous tin plating mechanism for copper alloy wire according to claim 3, characterized in that: The cover mechanism (4) includes a cover body (401) hinged to a tin plating bath (201). One end of the cover body (401) is fixed with a locking hook (402), the top end of the cover body (401) is fixed with a handle (403), three bearings (404) are also fixed on the cover body (401), and a motor frame (405) is also fixed on the top end of the cover body (401).

6. The high-precision continuous tin plating mechanism for copper alloy wire according to claim 5, characterized in that: The stirring mechanism (5) includes a stirring motor (501) fixed on a motor frame (405). A stirring rod (502) is fixed at the output end of the stirring motor (501). A stirring head (503) is fixed at the end of the stirring rod (502). A pulley (504) is fixed on the stirring rod (502). A transmission belt (505) is sleeved on the outside of the pulley (504). A pulley (506) is nested at the end of the transmission belt (505). A stirring rod (507) is fixed on the pulley (506).

7. The high-precision continuous tin plating mechanism for copper alloy wire according to claim 6, characterized in that: The stirring rod (502) is also fixed with a pulley (508), a transmission belt (509) is sleeved on the pulley (508), a pulley (510) is nested at the end of the transmission belt (509), and the stirring rod (511) is fixed on the pulley (510).

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