Soaking and spraying integrated line body used in PCB pretreatment process
By designing an immersion and spraying integrated line for PCB pretreatment process, the rotary valve assembly is used to achieve efficient switching between spraying and soaking processes, the problems of many equipment, large space and low efficiency in the prior art are solved, and cost reduction and R&D efficiency are improved.
Patent Information
- Application Number
- CN202421690484.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In the prior art, spraying and soaking of PCB pretreatment wires need to be carried out separately, resulting in a large number of equipment, large space occupied, difficult to assemble and maintain, and a large amount of chemical waste liquid, which is inefficient in overall efficiency.
A soaking and spraying integrated line for PCB pretreatment process is designed, including a roller set, a potion tank, a circulation pump and a rotating valve assembly. The rotating valve assembly realizes efficient switching of the spraying and soaking process through the rotational action of the rotating valve body.
Efficient switching between spray and soaking test methods is achieved, without the need to set up spray lines and soaking lines separately, which greatly reduces costs, improves R&D efficiency, reduces the configuration and emission of chemical potions, and reduces environmental protection pressure.
Smart Images
Figure CN222916282U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of PCB processing and manufacturing, and particularly relates to an integrated soaking and spraying line body for PCB pretreatment process. Background Technique
[0002] In the prior art, the PCB pretreatment line body is generally divided into a spraying line and a soaking line. Among them, the spraying line is mainly applied to the pretreatment of each process, such as cleaning, medium roughening, super roughening and other processes; the soaking line is mainly applied to the anti-seepage treatment before OSP (organic solderability protective film), circuit, and solder mask. Since circuit board manufacturers have dedicated equipment lines for each process, horizontal equipment suppliers have basically formulated products as standard products according to the process requirements, that is, the horizontal spraying line and the horizontal soaking line are used separately for special purposes.
[0003] However, for users with high requirements for equipment flexibility (such as R & D institutions such as chemical solution developers), there are many disadvantages in application. For example, the cost is high. When testing the spraying or soaking treatment methods for the same product, the cylinder needs to be opened repeatedly; if the spraying line and the soaking line are purchased separately, the equipment cost will increase and more space will be occupied; the environmental protection pressure is high. Repeated cylinder opening tests of chemical solutions will generate a large amount of chemical waste liquid; the operation is cumbersome and the efficiency is low. The same chemical solution needs to be opened and tested twice on the soaking line and the spraying line, and a lot of time is required for the preparation work before cylinder preparation, and the R & D test efficiency is low. Summary of the Utility Model
[0004] The technical solution of the utility model aims to solve at least one of the technical problems in the related art to a certain extent. For this reason, the main purpose of the utility model is to provide an integrated soaking and spraying line body for PCB pretreatment process, aiming to solve the problems in the prior art that the spraying and soaking of the PCB pretreatment line body need to be carried out separately, involving more line bodies and equipment, occupying more space, being not easy to assemble and maintain, generating more chemical waste liquid, and having low overall efficiency.
[0005] To achieve the above purpose, the utility model provides an integrated soaking and spraying line body for PCB pretreatment process, including a line body composed of a roller group, a chemical solution tank and a circulation pump. A rotary valve assembly is arranged on the line body.
[0006] The chemical solution tank is arranged at the bottom of the roller group and is communicated with the rotary valve assembly through a circulation pump.
[0007] The rotary valve assembly includes a rotary valve body arranged above the chemical solution tank and at the front section position of the roller group. A spraying water knife and a soaking water knife are respectively arranged on both sides of the rotary valve body. Through the rotation action of the rotary valve body, the spraying water knife and the soaking water knife respectively realize the spraying and soaking processes for the circuit boards running in the roller group.
[0008] As a further solution of the present utility model, the spray water knife and the immersion water knife are respectively arranged at the upper and lower positions on one side of the rotary valve body, and the rotary valve body is a ball valve structure that rotates up and down.
[0009] As a further solution of the present utility model, a sector-shaped spray nozzle for spraying and cleaning the entire production line is provided on the other side of the rotary valve body.
[0010] As a further solution of the present utility model, solid pressing rollers are provided at both ends of the roller group.
[0011] As a further solution of the present utility model, the line body is a multi-section production line structure, and the line body has at least two sections. Each line body includes the roller group, the medicine tank, the circulation pump, and the rotary valve assembly.
[0012] As a further solution of the present utility model, a water absorption wheel is provided at the end of the line body.
[0013] As a further solution of the present utility model, a liquid discharge switch is also connected to the medicine tank.
[0014] The beneficial effects of the present utility model are as follows:
[0015] The immersion and spray integrated line body proposed by the present utility model for the PCB pretreatment process. This pretreatment line for PCB that can be used for both spraying and immersion adopts a dual-purpose device of spray nozzle / immersion water knife, which can efficiently switch between two different test methods of spraying / immersion. There is no need to separately set up a spray line and an immersion line, which greatly reduces costs. At the same time, one tank of chemical solution can simultaneously test the effects of spraying and immersion, greatly improving the R & D efficiency, reducing the preparation and discharge of chemical solutions, and reducing the environmental protection pressure. Description of the Drawings
[0016] In order to more clearly illustrate the embodiments of the technical solutions of the present utility model or the prior art of the utility model technology, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the technical solutions of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.
[0017] Figure 1 It is a schematic diagram of the overall structure setting of each component in the line body and the rotary valve assembly in the present utility model.
[0018] Figure 2 It is a schematic diagram of the setting of each component of the rotary valve assembly in the present utility model.
[0019] Label Name Label Name 1 Line body 2 PCB 10 Roller group 3 Rotary valve assembly 11 Pressing roller 30 Rotary valve body 12 Water absorption wheel 31 Soaking water knife 13 Chemical liquid tank 32 Spraying water knife 14 Circulation pump 33 Fan-shaped spray nozzle 15 Liquid discharge switch Detailed implementation mode
[0020] As follows:
[0021] Please refer to the attached Figure 1-2 ,
[0022] The main structure includes a line body composed of a roller group, a liquid medicine tank and a circulation pump. A rotary valve assembly is provided on the line body. The liquid medicine tank is arranged at the bottom of the roller group and is communicated with the rotary valve assembly through the circulation pump. The rotary valve assembly includes a rotary valve body arranged above the liquid medicine tank and at the front section position of the roller group. Spray water knives and immersion water knives are respectively arranged on both sides of the rotary valve body. Through the rotation of the rotary valve body, the spray water knives and immersion water knives respectively perform the spraying and immersion processes on the circuit boards running in the roller group.
[0023] The working principle is as follows:
[0024] During operation, the PCB is transported to one side through the roller group. When passing through the rotary valve assembly on one side, the rotary valve assembly can selectively open the immersion water knife and the spray water knife respectively through the rotation of the rotary valve body, that is, the immersion and spraying processes are respectively realized. The liquid medicine tank at the bottom mainly serves to store the liquid medicine. The circulation pump mainly serves to circulate and transport the liquid medicine.
[0025] A preferred embodiment of the present utility model: The spray water knife and the immersion water knife are respectively arranged at the upper and lower positions on one side of the rotary valve body, and the rotary valve body is a ball valve structure that rotates up and down.
[0026] A preferred embodiment of the present utility model: A fan-shaped spray nozzle for spraying and cleaning the entire production line is provided on the other side of the rotary valve body.
[0027] A preferred embodiment of the present utility model: Solid rollers are provided at both ends of the roller group.
[0028] The roller (made of solid PP material), with an up-and-down structure, can act as a water-blocking roller when the immersion device is enabled to limit the water level from dropping.
[0029] A preferred embodiment of the present utility model: The line body is a multi-section production line structure, and the line body has at least two sections. Each line body includes a roller group, a liquid medicine tank, a circulation pump and a rotary valve assembly.
[0030] A preferred embodiment of the present utility model: A water absorption wheel is provided at the end of the line body.
[0031] The water absorption wheel can be a water absorption sponge roller, and its main function is to adsorb the excess water on the plate.
[0032] A preferred embodiment of the present utility model: The liquid medicine tank is also communicated with a liquid discharge switch.
[0033] The liquid discharge switch serves as the discharge outlet for the liquid medicine in the cylinder block. It can be externally connected to a pipeline separately to reduce the pollution caused by sewage discharge.
[0034] The above are only the preferred embodiments of the technical solution of the present utility model, and do not limit the patent scope of the technical solution of the present utility model. Any equivalent structural transformation made under the inventive concept of the technical solution of the present utility model by using the content of the specification and drawings of the technical solution of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the technical solution of the present utility model.
Claims
1. An integrated immersion spray line for PCB pre-treatment process, characterized in that: include The line body is composed of a roller group, a medicine tank and a circulation pump, and a rotary valve assembly is provided on the line body. The medicine tank is arranged at the bottom of the roller assembly and is connected to the rotary valve assembly through a circulation pump. The rotary valve assembly includes a rotary valve body which is arranged above the medicine tank and located at the front end of the roller group. A spraying water knife and an immersion water knife are respectively arranged on both sides of the rotary valve body. The spraying water knife and the immersion water knife respectively realize the spraying and immersion processes for the circuit board running in the roller group through the rotation action of the rotary valve body.
2. The immersion spray integrated line for PCB pre-treatment process according to claim 1, characterized in that: The spraying water knife and the immersion water knife are respectively arranged at upper and lower positions on one side of the rotary valve body, and the rotary valve body is a ball valve structure that rotates up and down.
3. The immersion spray integrated line for PCB pre-treatment process according to claim 1, characterized in that: A fan-shaped spray nozzle for spraying and cleaning the entire production line is provided on the other side of the rotary valve body.
4. The immersion spray integrated line for PCB pre-treatment process according to claim 1, characterized in that: Both ends of the roller group are provided with pressure rollers of solid structure.
5. The immersion spray integrated line for PCB pre-treatment process according to claim 1, characterized in that: The line body is a multi-stage production line structure, and the line body is provided with at least two sections, and each of the line bodies comprises the roller group, the medicine tank, the circulation pump and the rotary valve assembly.
6. The immersion spray integrated line for PCB pre-treatment process according to claim 5, characterized in that: A water suction wheel is arranged at the end of the line body.
7. The immersion spray integrated line for PCB pre-treatment process according to claim 1, characterized in that: The medicine water tank is also connected to a liquid discharge switch.