Novel horizontal line sampling device in PCB industry
By designing a circulating system within the chemical tank and a sampling method controlled by solenoid valves on the PCB production line, the problems of long sampling time and contamination risk in existing technologies have been solved, achieving an efficient and contactless sampling process.
Patent Information
- Application Number
- CN202511040433.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-11-07
AI Technical Summary
Existing sampling methods for PCB production lines are time-consuming and pose a risk of chemical contamination, with sampling bottles coming into direct contact with the chemical tank, leading to contamination.
Design a circulating system for a medicine tank that includes a suction pipe, a circulating pump, a discharge pipe, a T-connector, and a solenoid valve. The solenoid valve controls the opening and closing of the sampling tube, and a pressure sensor detects the mass of the sampling bottle to achieve non-contact sampling.
It significantly reduces sampling time and avoids direct contact between the sampling bottle and the medicine in the medicine tank, thus reducing the risk of medicine contamination.
Smart Images
Figure CN120907898A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of PCB production, in particular to a novel horizontal line sampling device for the PCB industry. BACKGROUND
[0002] The PCB production industry involves various horizontal production lines, such as chemical copper plating, electroplating, surface treatment, etc. According to production needs, the horizontal production line generally has multiple chemical tank production slots. The chemical components of different chemical slots are not the same, and each chemical component is set to have certain concentration control specifications. During production, it is necessary to ensure that all chemicals on the production line are within the control specifications, so regular sampling for analysis and adjustment is required, and the general sampling analysis frequency is 4H or 8H once.
[0003] Currently, the horizontal line of the PCB industry generally has a length of 15m-80m, and the chemical tank has 2-10 slots. The top of the chemical tank is provided with an observation port for chemical sampling and addition. The observation port has a movable transparent cover plate. For sampling each chemical tank, the entire line needs to be walked, and each cover plate needs to be moved away during sampling. A sampling bottle is used to scoop the tank liquid. After the chemical is taken, the cover plate is reset. This sampling method requires a lot of time, and the sampling bottle directly contacts the chemical in the production tank, which has the risk of contaminating the chemical. SUMMARY
[0004] Based on the deficiencies of the prior art mentioned in the above background art, the present application provides a novel horizontal line sampling device for the PCB industry.
[0005] The present application overcomes the above technical problems by adopting the following technical solutions, in particular: A novel horizontal line sampling device for the PCB industry, comprising: A welding support, the top of which is fixed with multiple chemical tanks; Multiple circulating pumps, each of which is located below a corresponding chemical tank, and the water suction end of the circulating pump is fixed with a steel water suction pipe that connects the two; Multiple three-way pipes, each of which corresponds to a circulating pump, and the water outlet end of the circulating pump is fixed with a water outlet pipe that connects the two, the water outlet pipe and the corresponding chemical tank are fixed with a second pipe support, one end of each three-way pipe is fixed with a drainage pipe that connects the two, and one end of the drainage pipe is fixed with an electromagnetic valve that connects the two; A front stand, which is located on one side of the welding support and is fixed thereto; A plurality of sampling tubes are fixed on the outer side of the front frame, and each sampling tube is vertically arranged; the electromagnetic valves correspond to the sampling tubes one by one, and the electromagnetic valves and the corresponding sampling tubes are fixed with a hose for communication.
[0006] As a further scheme of the present application, the top of the welding support is fixed with a plurality of water washing tanks, each water washing tank is staggered with each medicine tank, and each water washing tank and medicine tank are linearly arranged.
[0007] As a further scheme of the present application, the bottom of the front frame is fixed with a placing table, the whole sampling bottle placing table is located below each sampling tube, and the surface of the sampling bottle placing table is provided with a plurality of placing grooves, each placing groove corresponds to each sampling tube one by one.
[0008] As a further scheme of the present application, the bottom inner wall of each placing groove is fixed with a pressure sensor, and the contact end of each pressure sensor is fixed with a contact plate.
[0009] As a further scheme of the present application, the front side of the front frame is fixed with a controller, the shell of the controller is fixed with a total start-stop switch and a plurality of sub-start-stop switches, and the total start-stop switch, the sub-start-stop switch, the electromagnetic valve, the pressure sensor and the circulating pump are electrically connected with the controller.
[0010] As a further scheme of the present application, one end of the three-way pipe is fixed with a water inlet pipe in communication therewith, the water inlet pipe and the corresponding medicine tank are jointly fixed with a third pipe support, and one end of the water inlet pipe is arranged at the bottom of one side of the medicine tank.
[0011] After the above structure is adopted, the present application has the following advantages compared with the prior art: The water absorption pipe, the circulating pump, the water outlet pipe, the three-way pipe and the water inlet pipe form an internal circulation system in the medicine tank, which prevents the medicine in the medicine tank from depositing, and a sampling tube is connected to the three-way pipe, and an electromagnetic valve is additionally arranged on each sampling tube. When sampling, the sampling tubes are arranged under the sampling ports of different medicine tanks in sequence, the electromagnetic valve is opened for a certain time, and then the electromagnetic valve is closed after sampling. The pressure sensor arranged in the placing groove is used for detecting the quality of the sampling bottle, and the corresponding electromagnetic valve is controlled to be closed if the quality reaches a specified pressure value. Such a design scheme greatly saves the sampling time and avoids the pollution of the medicine in the production tank caused by the direct contact of the sampling bottle with the medicine. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a schematic diagram of the overall structure of the present application.
[0013] Fig. 2 It is the front stand first perspective schematic diagram of the three-dimensional structure of the application.
[0014] Fig. 3 It is the front stand second perspective schematic diagram of the three-dimensional structure of the application.
[0015] Fig. 4 It is the medicine tank three-dimensional structure schematic diagram of the application.
[0016] Fig. 5 It is the medicine tank internal structure schematic diagram of the application.
[0017] In the figure: 1, welding support; 2, water washing tank; 3, medicine tank; 4, front stand; 5, controller; 6, total start-stop switch; 7, branch start-stop switch; 8, sampling tube; 9, sampling bottle placement table; 10, placement groove; 11, pressure sensor; 12, first pipeline support; 13, tee pipe; 14, drainage pipe; 15, electromagnetic valve; 16, second pipeline support; 17, third pipeline support; 18, water inlet pipe; 19, water outlet pipe; 20, circulating pump; 21, water suction pipe. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.
[0019] Please refer to Figs. 1-5 In the embodiments of the application, a new horizontal line sampling device in the PCB industry comprises: The welding support 1 is fixed with a plurality of medicine tanks 3 at the top of the welding support 1. A plurality of circulating pumps 20 are respectively located below each medicine tank 3, and the water suction end of the circulating pump 20 is fixed with a steel water suction pipe 21 at the bottom of the medicine tank 3 to communicate with each other. A plurality of tee pipes 13 are respectively corresponding to the plurality of circulating pumps 20 one by one, the water outlet end of the circulating pump 20 is fixed with a water outlet pipe 19 at one end of the corresponding tee pipe 13 to communicate with each other, the water outlet pipe 19 and the corresponding medicine tank 3 are jointly fixed with a second pipeline support 16, one end of each tee pipe 13 is fixed with a drainage pipe 14 in communication therewith, one end of the drainage pipe 14 is fixed with an electromagnetic valve 15 in communication therewith. The front stand 4 is located at one side of the welding support 1 and is fixed with the welding support 1. A plurality of sampling tubes 8, the outer side of the front frame 4 is fixed with a plurality of first pipeline support 12, a plurality of sampling tubes 8 are fixed on a plurality of first pipeline support 12 respectively, and each sampling tube 8 is vertically arranged, a plurality of electromagnetic valves 15 correspond to a plurality of sampling tubes 8 one by one, and the electromagnetic valve 15 and its corresponding sampling tube 8 are fixed with a soft tube for connecting them; Through the above connection relationship, it can be known that the sampling bottles are arranged in turn under the sampling ports of different medicine grooves 3, the electromagnetic valve 15 is opened for a certain time, and after sampling is completed, the electromagnetic valve 15 is closed; such design scheme greatly saves the sampling time, and avoids the pollution of the medicine in the production tank caused by the direct contact of the sampling bottle with the medicine.
[0020] Specifically, a plurality of water washing grooves 2 are fixed on the top of the welding support 1, each water washing groove 2 is staggered with each medicine groove 3, and each water washing groove 2 is linearly arranged with the medicine groove 3. Through the above connection relationship, it can be known that such staggered distribution method is relatively common in the prior art, mainly in order to perform water washing once when entering the next medicine groove 3, and the specific cleaning method and medicine soaking method are irrelevant to the present application, which will not be described in detail here.
[0021] Specifically, the bottom of the front frame 4 is fixed with a placing table, the whole sampling bottle placing table 9 is located below each sampling tube 8, and the table top of the sampling bottle placing table 9 is provided with a plurality of placing grooves 10, each placing groove 10 corresponds to each sampling tube 8 one by one. Through the above connection relationship, it can be known that the sampling bottle placing table 9 is used for placing the sampling bottle, and the placing groove 10 is used for providing a placing position for positioning, which facilitates the alignment of the sampling bottle and the sampling tube 8.
[0022] Specifically, the inner wall of the bottom of each placing groove 10 is fixed with a pressure sensor 11, and the contact end of each pressure sensor 11 is fixed with a contact plate. Through the above connection relationship, it can be known that the pressure sensor 11 is arranged in the placing groove 10, and the pressure sensor 11 is used for detecting the quality of the sampling bottle, and if the quality reaches a specified pressure value, the corresponding electromagnetic valve 15 will be controlled to be closed.
[0023] Specifically, the front side of the front frame 4 is fixed with a controller 5, the shell of the controller 5 is fixed with a total start-stop switch 6 and a plurality of separate start-stop switches 7, the total start-stop switch 6, the separate start-stop switch 7, the electromagnetic valve 15, the pressure sensor 11 and the circulating pump 20 are electrically connected with the controller 5. It is supplemented here that the total start-stop switch 6 can control the synchronous starting and closing of each electromagnetic valve 15, and the separate start-stop switch 7 controls the single electromagnetic valve 15, and when one or more electromagnetic valves 15 are in the open state, the total start-stop switch 6 can only be closed.
[0024] Specifically, one end of the tee pipe 13 is fixed with the water inlet pipe 18 communicated therewith, and the water inlet pipe 18 is fixed with a third pipe support 17 together with the corresponding medicine tank 3, and one end of the water inlet pipe 18 is arranged at the bottom of one side of the medicine tank 3; Through the above connection relationship, it can be known that the water suction pipe 21, the circulating pump 20, the water outlet pipe 19, the tee pipe 13 and the water inlet pipe 18 form a circulating system in the medicine tank 3, so as to prevent the medicine in the medicine tank 3 from depositing.
[0025] Working principle: When no sampling is performed, the circulating pump 20 is kept in an open state, and each electromagnetic valve 15 is kept closed, at this time, the circulating pump 20 makes the medicine circulate in the water suction pipe 21, the medicine tank 3, the water outlet pipe 19, the tee pipe 13 and the water inlet pipe 18, so as to prevent the medicine in the medicine tank 3 from depositing in the medicine tank 3; When sampling is performed, first, each sampling bottle is placed on the placing table, and after complete placement, the total start-stop switch 6 is started, each electromagnetic valve 15 is synchronously opened, and after the sampling bottle reaches the sampling amount, each electromagnetic valve 15 is synchronously closed through the total start-stop switch 6; When individual sampling is performed, the sampling bottle is placed in the placing groove 10 corresponding to the medicine tank 3 to be sampled, and the corresponding separate start-stop switch 7 is started to perform individual sampling. The pressure sensor 11 is used for detecting the quality of the sampling bottle, and if the quality reaches the specified pressure value, the corresponding electromagnetic valve 15 is controlled to be closed.
[0026] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application.
Claims
1. A novel horizontal line sampling device for the PCB industry, characterized in that, The utility model provides a kind of welding support (1), the top of the welding support (1) is fixed with multiple medicine tank (3);Multiple circulating pumps (20) are located below each medicine tank (3) respectively, and the water suction end of the circulating pump (20) is fixed with a water suction pipe (21) of steel, which is connected with the bottom of medicine tank (3);Multiple three-way pipes (13) correspond to multiple circulating pumps (20) one by one respectively, and the water outlet end of the circulating pump (20) is fixed with a water outlet pipe (19) of one end of its corresponding three-way pipe (13), which is connected;The water outlet pipe (19) and the corresponding medicine tank (3) are fixed with a second pipe support (16), one end of each three-way pipe (13) is fixed with a drainage pipe (14) connected therewith, and one end of the drainage pipe (14) is fixed with an electromagnetic valve (15) connected therewith;The front frame (4) is located on one side of the welding support (1) and is fixed with the welding support (1);Multiple sampling tubes (8) are fixed on the outside of the front frame (4), and multiple first pipe supports (12) are fixed on the outside of the front frame (4), and multiple sampling tubes (8) are fixed on the multiple first pipe supports (12) respectively, and each sampling tube (8) is vertically arranged, and multiple electromagnetic valves (15) correspond to multiple sampling tubes (8) one by one, and the electromagnetic valve (15) is fixed with a hose connected with the corresponding sampling tube (8). The top of the welding support (1) is fixed with multiple washing tanks (2), each washing tank (2) and each medicine tank (3) are staggered, and each washing tank (2) and medicine tank (3) are linearly arranged. The bottom of the front frame (4) is fixed with a placing table, the sampling bottle placing table (9) is located below each sampling tube (8), and the surface of the sampling bottle placing table (9) is provided with multiple placing grooves (10), each placing groove (10) corresponds to each sampling tube (8) one by one. The bottom inner wall of each placing groove (10) is fixed with a pressure sensor (11), and the contact end of each pressure sensor (11) is fixed with a contact plate. The front side of the front frame (4) is fixed with a controller (5), the shell of the controller (5) is fixed with a total start-stop switch (6) and multiple sub-start-stop switches (7), the total start-stop switch (6), the sub-start-stop switch (7), the electromagnetic valve (15), the pressure sensor (11) and the circulating pump (20) are electrically connected with the controller (5). One end of the three-way pipe (13) is fixed with a water inlet pipe (18) connected therewith, the water inlet pipe (18) and the corresponding medicine tank (3) are fixed with a third pipe support (17), and one end of the water inlet pipe (18) is arranged on one side of the bottom of the medicine tank (3).
2. A new type of horizontal line sampling device in the PCB industry according to claim 1, characterized in that, 3. A new type of horizontal line sampling device in the PCB industry according to claim 1, characterized in that, 4. A new type of horizontal line sampling device in PCB industry according to claim 3, characterized in that, 5. A novel horizontal line sampling device for PCB industry as claimed in claim 4, wherein 6. A new type of horizontal line sampling device for PCB industry according to claim 1, characterized in that,