CN-224212734-U - Tin spraying device based on Jin Tangxi is removed to gild connector contact pin middle lower part

Abstract

The utility model discloses a tin spraying device based on Jin Tangxi removal of the middle lower part of a gold-plated connector pin, and belongs to the technical field of gold removal and tin coating. The tin spraying device comprises a base and a spray head, wherein the base comprises a substrate, a through tin spraying hole is formed in the substrate, the spray head is fixed on the base, a through tin spraying channel is formed in the spray head, the tin spraying channel is communicated with the tin spraying hole, and tin guiding grooves are formed in two sides of the end portion of the tin spraying channel. The utility model can solve the problem that the upper part of the contact pin is inevitably treated with gold-removing tin-plating treatment when the connector is treated with Jin Tangxi, so that the final requirement on the product is not met.

Inventors

• LI JIANG
• YANG MU
• YANG FEI
• XIE GUOPENG
• WANG LEI

Assignees

• 西安甘鑫科技股份有限公司

Dates

Publication Date

20260508

Application Date

20250605

Claims (7)

1. 1. A tin spraying device based on a lower part Jin Tangxi in a gold-plated connector pin, comprising: the base (1) comprises a substrate (101), wherein a through tin spraying hole (102) is formed in the substrate (101); The spray head (2) is fixed on the base (1), and a through tin spraying channel (201) is formed in the spray head (2), the tin spraying channel (201) is communicated with the tin spraying holes (102), and tin guide grooves (202) are formed in two sides of the end part of the tin spraying channel (201).
2. 2. Tin spraying device based on the lower middle part Jin Tangxi of the gilding connector pin according to claim 1, characterized in that the edge of the side of the base (1) facing away from the spray head (2) is provided with a matching plate (103).
3. 3. The tin spraying device based on the gold-plated connector pin middle-lower part removing Jin Tangxi according to claim 2, wherein the tin spraying device based on the gold-plated connector pin middle-lower part removing Jin Tangxi further comprises: The left lug (3) is arranged on one side of the matching plate (103), and the extending direction of the left lug (3) is perpendicular to the extending direction of the spray head (2); the right lug (4) is arranged on one side of the matching plate (103) opposite to the left lug (3), and the extending direction of the right lug (4) is perpendicular to the extending direction of the spray head (2).
4. 4. The tin spraying device based on the upper-middle part Jin Tangxi of the gold-plated connector pin according to claim 3, wherein the base (1), the spray head (2), the left ear (3) and the right ear (4) are all made of stainless steel.
5. 5. The tin spraying device based on Jin Tangxi th lower middle part of the gold-plated connector pin according to claim 3, wherein the thickness of the base (1), the spray head (2), the left ear (3) and the right ear (4) is 1 mm-2 mm.
6. 6. The tin spraying device based on the lower middle part Jin Tangxi of the gold-plated connector pin according to claim 1, wherein the length of the end of the spray head (2) far away from the base (1) is longer than the length of the end of the spray head (2) connected with the base (1).
7. 7. A tin spraying device based on a lower middle part Jin Tangxi of a gold-plated connector pin according to claim 3, wherein the base (1), the spray head (2), the left ear (3) and the right ear (4) are connected together by means of welding.

Description

Tin spraying device based on Jin Tangxi is removed to gild connector contact pin middle lower part Technical Field The application relates to the technical field of gold-removing tin coating, in particular to a tin spraying device based on Jin Tangxi removal of the middle lower part of a gold-plated connector pin. Background According to industry standard and product quality reliability requirements, before welding, the double-row gold-plated connector should perform gold-removing tin-plating treatment on the welding part of the gold-plated contact pin of the connector, and then welding. However, since the connector is subjected to board-level interconnection after the completion of welding (the upper 5mm part of the pin is protected, and no gold and tin plating treatment is performed, and the part is subjected to opposite insertion connection with the corresponding connector), the pin of the connector at the interconnection part cannot be plated with tin according to the design requirement, and the original gold plating state of the pin is required to be maintained. Therefore, the product connector is required to perform gold and tin removal only on the middle lower part of the contact pin, so that the gold-plated part of the upper part (interconnection part) of the contact pin, which does not need tin plating, is protected, and meanwhile, the gold and tin removal of the lower part (welding part) of the contact pin can be well realized. Based on the conventional scheme, when the connector is subjected to Jin Tangxi steps, the pin of the pin is usually directly perpendicular to the soldering surface and inserted into the solder, and the upper part of the pin is inevitably subjected to gold-removing and tin-coating treatment, so that the final requirement on the product is not met. Disclosure of utility model The main objective of the present application is to provide a tin spraying device based on the upper and lower part Jin Tangxi of a gold-plated connector pin, which aims to solve the problem that the final requirement of the product is not met due to the fact that the upper part of the pin is inevitably subjected to gold-plated tin coating treatment when the connector is subjected to Jin Tangxi treatment. The application provides a tin spraying device based on Jin Tangxi of a gold-plated connector pin, which comprises a base and a spray head, wherein the base comprises a substrate, a through tin spraying hole is formed in the substrate, the spray head is fixed on the base, a through tin spraying channel is formed in the spray head, the tin spraying channel is communicated with the tin spraying hole, and tin guiding grooves are formed in two sides of the end part of the tin spraying channel. Optionally, an edge of the base facing away from one side of the spray head is provided with a matching plate. Optionally, the tin spraying device based on the Jin Tangxi th lower part of the gold-plated connector pin further comprises a left ear and a right ear, wherein the left ear is arranged on one side of the matching plate, the extending direction of the left ear is perpendicular to the extending direction of the spray head, and the right ear is arranged on one side of the matching plate opposite to the left ear, and the extending direction of the right ear is perpendicular to the extending direction of the spray head. Optionally, the base, the spray head, the left ear and the right ear are all made of stainless steel. Optionally, the thickness of the base, the nozzle, the left ear and the right ear is 1 mm-2 mm. Optionally, the length of the end, away from the base, of the spray head is greater than the length of the end, connected with the base, of the spray head. Optionally, the base, the spray head, the left ear and the right ear are connected together by welding. According to the tin spraying device based on the upper part Jin Tangxi of the gold-plated connector pin, when gold and tin are removed, the base is arranged on the tin spraying furnace, the spray head is aligned to the welding part of the connector gold-plated pin, tin sprayed by the spray head is attached to the welding part of the connector gold-plated pin, in the process, tin material enters a tin spraying channel from a tin spraying hole on the substrate, and then the tin is sprayed to the welding part of the connector gold-plated pin, so that gold and tin are removed, and the product meets the final requirement. The tin guide grooves are arranged on two sides of the end part of the tin spraying channel, when the tin material is sprayed out and is higher than the tin spraying nozzle, the tin material flows away through the tin guide grooves on two sides, so that the tin material is prevented from flowing out of two sides of the long side of the tin spraying nozzle, and the surface tension of the tin material can be changed through the tin guide grooves, so that the problem of tin material fluidity in the tin spraying process is effectively so