A solder resist screen for wave soldering
By designing a laser-cut stainless steel tin-shielding mesh, the problem of solder bridging caused by the small spacing between component leads in wave soldering was solved. This effectively prevents solder flow, improves soldering quality and production efficiency, and is compatible with existing equipment.
Patent Information
- Application Number
- CN202520260104.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-18
AI Technical Summary
During wave soldering, bridging is prone to occur when the pin spacing of components on the PCB is ≤1.27mm, leading to short circuits. Existing methods to prevent short circuits are costly or complex to operate, affecting solder joint quality and production efficiency.
Design a solder barrier mesh, cut into shape by a laser cutter, made of stainless steel and titanium-plated, with evenly distributed vertical mesh to prevent solder flow, compatible with existing wave soldering equipment.
It effectively prevents solder bridging, improves welding quality and production efficiency, reduces costs, and does not require large-scale equipment modifications.
Smart Images
Figure CN223600117U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of wave -soldering accessory, especially a tin screen for wave -soldering. BACKGROUND
[0002] It is known that in the wave -soldering process, when the part pin pitch on the PCB is less than or equal to 1.27mm, the solder flow is easy to appear the welding phenomenon, lead to short circuit problem. It greatly increases the work cost of personnel welding again, and will produce potential operation scrap and defect. Especially in mass production, using traditional wave -soldering can greatly improve the production capacity, but is limited by the generation of defect.
[0003] At present, although there are some methods to prevent short circuit, such as hot air knife technology, tool fixture auxiliary processing, etc., but these methods are either high cost or complex operation, and may have adverse effects on the quality of welding points, thereby poor practicality. CONTENT OF THE UTILITY MODEL
[0004] To solve the above technical problems, the utility model provides a simple, effective, low -cost tin screen manufacturing method to improve production quality and production efficiency, thereby enhancing the practicality of a tin screen for wave -soldering.
[0005] The utility model relates to a tin screen for wave -soldering, including the body frame, the front end of the body frame is provided with three sets of positioning hole, the bottom end of the body frame is provided with interval net.
[0006] Preferably, the plurality of vertical strip meshes on the interval net are of the same size and are evenly distributed at the bottom end of the body frame.
[0007] Preferably, the body frame and the interval net are made of stainless steel.
[0008] Preferably, the surfaces of the body frame and the interval net are treated by titanium plating.
[0009] Compared with the prior art, the utility model has the advantages that:
[0010] 1. The utility model is integrally cut and formed by a production equipment laser cutting machine, and the interval net with evenly distributed vertical strip meshes of the same size is arranged at the bottom end of the body frame, which can effectively prevent solder flow and avoid the occurrence of welding phenomenon, thereby improving welding quality and production efficiency.
[0011] 2. Good compatibility, compatible with existing wave -soldering equipment and carrier tooling, without large -scale modification or upgrading of the equipment. DRAWINGS
[0012] Fig. 1 is the connection structure schematic view of the utility model;
[0013] Fig. 2 is the front view structure schematic view of the utility model;
[0014] Fig. 3 is the side view structure schematic view of the utility model;
[0015] Mark in the drawing: 1, body frame;2, positioning hole;3, interval net. DETAILED DESCRIPTION
[0016] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.
[0017] As Figs. 1 to 3 shown, a kind of for wave-soldering tin isolation net of the utility model, including body frame 1, the front end of body frame 1 is provided with three groups of positioning hole 2, the bottom end of body frame 1 is provided with interval net 3;When production, by laser cutting machine equipment is integrally formed cutting, then again using middle through three positioning holes and wave-soldering device PCB plate fixed mold is assembled, and in later wave-soldering, tin soldering can be prevented by longitudinal mesh and interval net and effectively soldering resistance flow, to improve production quality and production efficiency, therefore enhance practicality.
[0018] As preferred of above-mentioned embodiment, multiple groups of vertical strip mesh on the interval net 3 are all same size, and are evenly respectively at the bottom end of body frame 1;The interval net of vertical strip mesh can effectively isolate soldering and resistance flow, to ensure welding quality, therefore enhance practicality.
[0019] As preferred of above-mentioned embodiment, the body frame 1 and interval net 3 are stainless steel material;Through the body frame and interval net of stainless steel material, improve its high-temperature resistance, corrosion resistance, not easy to deform performance, to enhance practicality.
[0020] As preferred of above-mentioned embodiment, the surface of body frame 1 and interval net 3 is all through titanium plating treatment;Through the body frame and interval net, improve the high-temperature resistance, corrosion resistance of equipment whole, to improve the service life and aesthetic degree of equipment, to enhance practicality.
[0021] The utility model discloses a tin screen for wave -soldering, its working principle is, when working, first, in production, through the production of the plate of stainless steel material quality selection, then through the cutting production of product of laser cutting process, after then through the treatment of product surface of titanium plating, then in quality and titanium plating etc. improve the high temperature resistance, corrosion resistance of product's performance, after in use, through three groups of positioning hole installs the positioning of tin screen can.
[0022] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0023] The "first", "second", "third" in the utility model do not represent the specific quantity and order, and are only used for distinguishing the names.
[0024] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the technical principles of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the utility model.
Claims
1. A solder resist screen for wave soldering, characterized in that Including the body frame (1), the front end of the body frame (1) is provided with three groups of positioning holes (2), and the bottom end of the body frame (1) is provided with a spacing net (3).
2. A solder resist screen for use in wave soldering as claimed in claim 1, characterised in that, The multiple groups of vertical strip meshes on the spacing net (3) are all the same size and are uniformly arranged at the bottom end of the body frame (1).
3. A solder resist screen for wave soldering as claimed in claim 2, characterised in that, The body frame (1) and the spacing net (3) are made of stainless steel.
4. A solder resist screen for wave soldering as claimed in claim 3, characterised in that, The surfaces of the body frame (1) and the spacing net (3) are treated by titanium plating.