Tinning device for foaming line conductor

By introducing a tin scraping mechanism and a cleaning and cooling device into the tin plating device for foamed wire conductors, the problem of uneven tin plating was solved, achieving uniform tin plating thickness and improving the stability and applicability of signal transmission.

CN223974172UActive Publication Date: 2026-03-06HANGZHOU YUANHONG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing technologies, uneven tin plating on the conductor of the foamed wire leads to resistance fluctuations, affecting the stability of signal transmission.

Method used

Design a tin plating apparatus for foamed wire conductors, including a tin scraping mechanism comprising a tin scraper base and a replaceable tin scraper for scraping off excess tin, ensuring uniform tin plating thickness, and equipped with cleaning, air cooling and water cooling devices.

Benefits of technology

By using a solder scraping mechanism, the tin plating thickness on the conductor surface is ensured to be uniform, reducing local resistance differences, improving signal transmission stability, and making it widely applicable while saving costs.

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Abstract

The utility model discloses a tin plating device for a foaming line conductor. The tin plating device comprises a pay-off reel, a pretreatment device, a tin plating unit, a cooling device and a take-up reel, the tin scraping device is characterized by further comprising a tin scraping mechanism which is arranged on the tin plating unit and used for scraping redundant tin on the conductor so as to ensure that the tin plating thickness of the conductor is uniform, and the tin scraping mechanism comprises a tin scraping base installed at the outlet end of the conductor of the tin plating unit and a replaceable tin scraping knife installed in the tin scraping base. The tin scraping knife is provided with a tin scraping hole for a conductor to pass through. Through the arrangement of the tin scraping mechanism, the tin scraping mechanism is used for scraping tin on a tinned conductor and scraping redundant tin on the conductor, so that the tinning thickness on the conductor is uniform, the current is uniformly distributed on the surface of the conductor, and the local resistance difference is reduced, thereby improving the overall wire performance; resistance fluctuation caused by too thick or too thin plating is avoided, and the stability of signal transmission is ensured.
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Description

Technical Field

[0001] This utility model relates to a tin plating device for foamed wire conductors, specifically a tin plating device for foamed wire conductors. Background Technology

[0002] Foamed conductors are a special type of cable conductor primarily used in high-frequency signal transmission applications, such as communication cables, radio frequency (RF) cables, and coaxial cables. Their core feature is the introduction of a foamed structure into the insulation layer, which lowers the dielectric constant, thereby reducing signal transmission loss and improving transmission efficiency.

[0003] In existing technologies, the surface of foamed wire conductors is typically tin-plated. For communication cables and radio frequency cables, a uniform tin plating layer is one of the key factors in ensuring high-frequency performance. Uneven tin plating, with a layer that is too thick or too thin, can lead to resistance fluctuations, thus affecting the stability of signal transmission. To address this, a tin plating device for foamed wire conductors is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a tin-plating device for foamed wire conductors in order to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tin plating device for foamed wire conductors, comprising a wire feeding reel, a pretreatment device, a tin plating unit, a cooling device, and a wire take-up reel; characterized in that it further comprises a tin scraping mechanism disposed on the tin plating unit for scraping off excess tin on the conductor to ensure uniform tin plating thickness, the tin scraping mechanism comprising a tin scraping seat installed at the conductor outlet end of the tin plating unit and a replaceable tin scraping blade installed in the tin scraping seat, the tin scraping blade having a tin scraping hole through which the conductor can pass.

[0006] More preferably, the solder scraper base is provided with a positioning groove for positioning the solder scraper installation position, a threaded hole provided on the solder scraper base, a positioning hole provided on the solder scraper corresponding to the position of the threaded hole, and a screw installed at the threaded hole and passing through the positioning hole.

[0007] A further preferred embodiment includes a collection box mounted on the tin plating unit and located below the tin scraper for collecting excess tin that has been scraped off.

[0008] More preferably, the pretreatment device includes a cleaning tank placed between the wire feeding reel and the tin plating unit.

[0009] More preferably, the cooling device includes an air-cooling mechanism disposed behind the tin plating unit and a water-cooling pool disposed behind the air-cooling mechanism. The air-cooling mechanism includes an air-cooling box and several fans installed on the air-cooling box.

[0010] The beneficial effects of this utility model are as follows: By setting up a tin scraping mechanism, the tin scraping mechanism is used to scrape the tin of the conductor after tin plating, to remove excess tin from the conductor, to ensure that the tin plating thickness on the conductor is uniform, to ensure that the current is evenly distributed on the conductor surface, to reduce local resistance differences, thereby improving the overall wire performance, avoiding resistance fluctuations caused by excessively thick or thin plating, and ensuring the stability of signal transmission.

[0011] With the replaceable solder squeegee, the appropriate size solder squeegee can be replaced according to the different conductor diameters, thus expanding the applicability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the tin plating unit and the tin scraping mechanism in this utility model;

[0013] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0014] Figure 3 This is a partial cross-sectional structural schematic diagram of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the solder scraper in this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of this utility model in use.

[0017] Legend: 1. Pay-off reel; 2. Pre-treatment device; 21. Cleaning tank; 3. Tin plating unit; 4. Cooling device; 41. Air-cooled box; 411. Fan; 42. Water-cooled tank; 5. Take-up reel; 6. Tin scraper; 61. Tin scraper; 62. Tin scraper hole; 63. Positioning groove; 64. Positioning hole; 65. Screw; 7. Collection box. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings, further illustrates the tin-plating device for foamed wire conductors according to this utility model.

[0019] It should be noted that all directional indicators such as up, down, left, right, front, back, etc. in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] See Figures 1-5 As shown, a tinning apparatus for foamed wire conductors includes a wire feeding reel 1, a pretreatment device 2, a tinning unit 3, a cooling device 4, and a take-up reel 5; characterized in that it further includes a tin scraping mechanism disposed on the tinning unit 3 for scraping off excess tin on the conductor to ensure uniform tinning thickness of the conductor. The tin scraping mechanism includes a tin scraping seat 6 installed at the conductor outlet end of the tinning unit 3 and a replaceable tin scraping blade 61 installed in the tin scraping seat 6. The tin scraping blade 61 is provided with a tin scraping hole 62 through which the conductor can pass.

[0022] The tin scraping mechanism is used to scrape the tin from the tin-plated conductor, removing excess tin to ensure uniform tin plating thickness and even current distribution on the conductor surface. This reduces local resistance differences, thereby improving overall conductor performance and preventing resistance fluctuations caused by excessively thick or thin plating, thus ensuring stable signal transmission.

[0023] In one embodiment, the solder scraper base 6 is provided with a positioning groove 63 for positioning the installation position of the solder scraper 61, a threaded hole provided on the solder scraper base 6, a positioning hole 64 provided on the solder scraper 61 corresponding to the position of the threaded hole, and a screw 65 installed at the threaded hole and passing through the positioning hole 64.

[0024] The positioning groove 63 limits the position of the solder squeegee 61 on the solder squeegee base 6. The positioning hole 64, threaded hole, and screw 65 facilitate the fixation and positioning of the solder squeegee 61 within the positioning groove 63, and also facilitate the replacement of the solder squeegee 61.

[0025] With the replaceable solder scraper 61, a solder scraper 61 of the appropriate size can be replaced according to different conductor diameter models, thereby improving the applicability.

[0026] In one embodiment, a collection box 7 is also included, which is installed on the tin plating unit 3 and located below the tin scraper 6 to collect excess tin scraped off. With the collection box 7, the tin scraped off by the tin scraper 61 falls into the collection box 7 and can be reused later, saving costs.

[0027] In one embodiment, the pretreatment device 2 includes a cleaning tank 21 placed between the wire feeding reel 1 and the tin plating unit 3;

[0028] The cleaning tank 21 may include one or more of the following: alkaline cleaning agent cleaning, ultrasonic cleaning, and high-pressure water cleaning.

[0029] In one embodiment, the cooling device 4 includes an air-cooling mechanism disposed behind the tin plating unit 3 and a water-cooling pool 42 disposed behind the air-cooling mechanism. The air-cooling mechanism includes an air-cooling box 41 and a plurality of fans 411 mounted on the air-cooling box 41.

[0030] After the conductor is tinned, it is cooled by a combination of air cooling and water cooling.

[0031] In use, the unplated foamed wire conductor is wound on the pay-off reel 1 and fed out through the pay-off reel 1. The conductor is first cleaned in the cleaning tank 21 and then air-dried before entering the tin plating unit 3 to contact the molten tin for tin plating. After tin plating, the conductor passes through the tin plating unit 3 and then through the tin scraping mechanism. When the conductor passes through the tin scraping hole 62 on the tin scraper 61, the excess tin on the surface of the conductor is scraped off, and the scraped tin falls into the collection box 7. After the excess tin is scraped off, the conductor moves to the air-cooling box 41. The conductor in the air-cooling box 41 is initially cooled by the air blown out by the fan 411. After the conductor is moved out of the air-cooling box, it enters the water-cooling tank 42 for water cooling. The conductor is completely cooled by water cooling. After the conductor is completely cooled by the water-cooling tank 42, it is moved out of the water-cooling tank 42. The conductor after being moved out of the water-cooling tank 42 is air-dried during the transmission process and then wound up by the take-up reel 5.

[0032] The scope of protection of this utility model is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this utility model.

Claims

1. A tinning device for foamed wire conductor comprising a pay-off reel (1), a pre-treatment device (2), a tinning unit (3), a cooling device (4) and a take-up reel (5); characterized in that The tin scraping mechanism is arranged on the tin plating unit (3) and used for scraping the excess tin on the conductor to ensure the uniformity of the tin plating thickness of the conductor.

2. A tinning apparatus for foamed wire conductors according to claim 1, characterized in that: The tin scraping seat (6) is provided with a positioning groove (63) for positioning the installation position of the tin scraping knife (61), a threaded hole arranged on the tin scraping seat (6), a positioning hole (64) arranged on the tin scraping knife (61) and corresponding to the threaded hole, and a screw (65) arranged at the threaded hole and penetrating through the positioning hole (64).

3. A tinning apparatus for foamed wire conductors according to claim 2, characterized in that The collecting box (7) is arranged on the tin plating unit (3) and below the tin scraping seat (6) and used for collecting the excess tin scraped off.

4. A tinning apparatus for foamed wire conductors as defined in claim 1, characterized in that: The pretreatment device (2) comprises a cleaning pool (21) arranged between the pay-off reel (1) and the tin plating unit (3).

5. A tinning apparatus for foamed wire conductors as defined in claim 1, characterized in that: The cooling device (4) comprises an air cooling mechanism arranged behind the tin plating unit (3) and a water cooling pool (42) behind the air cooling mechanism. The air cooling mechanism comprises an air cooling box (41) and a plurality of air fans (411) arranged on the air cooling box (41).