Automatic adding system for high-crystallization-point liquid medicine in PCB (printed circuit board) industry

Abstract

The utility model discloses an automatic adding system for high-crystallization-point liquid medicine in the PCB (Printed Circuit Board) industry. The automatic adding system comprises an automatic adding barrel, an automatic adding pump, a medicine pumping pipe, a hot water coil pipe, a medicine adding pipe, a quantitative box, an adding pipe, an electromagnetic valve, a PLC (Programmable Logic Controller) and a production liquid medicine tank, high-crystallization-point liquid medicine in the PCB industry is filled in the automatic adding barrel, a hot water coil pipe is arranged in the automatic adding barrel, hot water flows in the hot water coil pipe, one end of the automatic adding pump is connected with a medicine pumping pipe, the other end of the automatic adding pump is connected with one end of a medicine adding pipe, the medicine pumping pipe is arranged in the automatic adding barrel and provided with a filter head, and the medicine adding pipe is in an arch shape. The other end of the dosing pipe is connected with an inlet of the quantitative box, an outlet of the quantitative box is connected with one end of the adding pipe, the electromagnetic valve is arranged on the adding pipe, the other end of the adding pipe is connected with the production liquid medicine tank, and the PLC is electrically connected with the automatic adding pump and the electromagnetic valve. The automatic adding device avoids the situation that an automatic adding pipeline is crystallized and blocked, and stable adding of liquid medicine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB, in particular to an automatic adding system of high crystallization point liquid medicine in the PCB industry. Background Art

[0002] Chemical production lines in the PCB industry generally require the use of a variety of chemicals. Some production lines involve the use of dozens of types of chemicals. The concentration of the chemicals needs to be maintained stable during normal production. It is difficult to rely on manual analysis and adjustment, which is a heavy workload and almost impossible to achieve. Therefore, most chemicals are controlled by automatic addition mode.

[0003] At present, most automatic adding designs in the PCB industry are automatic adding barrels with quantitative boxes. The quantitative addition of the medicine is achieved by controlling the automatic adding pump through a fixed program. The automatic adding pipeline is mostly arranged in a vertical or horizontal direction, and does not change according to the type and nature of the medicine. The surface treatment process in the PCB industry involves a medicine with a crystallization point of about 10°C. The medicine is very easy to crystallize at room temperature. Quantitative addition is mostly a small amount and multiple times. The diameter of the medicine adding pipe is generally small, and the horizontal pipe is prone to residual medicine. This automatic adding design is very likely to cause crystallization and blockage of the automatic adding pipeline, affecting the quantitative addition of the medicine, causing the medicine to exceed the specifications, product quality variation, and increase the company's production costs. Summary of the invention

[0004] The utility model aims to overcome the deficiencies in the prior art and to provide an automatic adding system for high crystallization point liquid medicine in the PCB industry, so as to solve the problem of easy blockage when the high crystallization point liquid medicine is automatically added in the surface treatment process of the PCB industry.

[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following scheme:

[0006] The utility model provides an automatic adding system for high crystallization point liquid medicine in PCB industry, comprising an automatic adding barrel, an automatic adding pump, a medicine extraction pipe, a hot water coil, a medicine adding pipe, a quantitative box, an adding pipe, a solenoid valve, a PLC controller and a production liquid medicine tank; the automatic adding barrel is filled with high crystallization point liquid medicine in PCB industry, the hot water coil is arranged in the automatic adding barrel, hot water flows in the hot water coil, one end of the automatic adding pump is connected with the medicine extraction pipe, and the other end is connected with one end of the medicine adding pipe, the medicine extraction pipe is placed in the automatic adding barrel and is equipped with a filter head, the medicine adding pipe is arched, the other end of the medicine adding pipe is connected with the inlet of the quantitative box, the outlet of the quantitative box is connected with one end of the adding pipe, the solenoid valve is arranged on the adding pipe, the other end of the adding pipe is connected with the production liquid medicine tank, and the PLC controller is electrically connected with the automatic adding pump and the solenoid valve respectively.

[0007] Furthermore, it also includes a hot water inlet pipe and a hot water outlet pipe. The front end of the hot water coil is connected to the hot water inlet pipe, and the rear end is connected to the hot water outlet pipe.

[0008] Furthermore, it also includes a pressure relief hole, which is opened on the quantitative box.

[0009] Furthermore, the volume of the automatic adding barrel is 100L and the material is PVC.

[0010] Furthermore, the flow rate of the automatic addition pump is 0-100L / H.

[0011] Furthermore, the hot water coil has a diameter of 2 cm and is made of 304 stainless steel.

[0012] Furthermore, the diameter of the drug extraction tube is 1 cm and the material is PE.

[0013] Furthermore, the diameter of the dosing tube is 1 cm, the arch height is 3 cm, and the material is PE.

[0014] Furthermore, the volume of the quantitative box is 500 ml and the material is PE.

[0015] Furthermore, the diameter of the pressure relief hole is 1.5 cm.

[0016] Compared with the prior art, the utility model has the following beneficial effects: a hot water coil is installed in the automatic adding barrel to control the temperature of the medicine in the automatic adding barrel to be above the crystallization point, and a filter head is installed at the bottom of the medicine extraction pipe to prevent small crystals and impurities from entering the medicine adding pipe. The horizontal pipeline is changed into an arch design to prevent the residual medicine in the pipeline from crystallizing, thus avoiding the blockage of the automatic adding pipeline by crystallization and ensuring the stable addition of medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an automatic adding system for high crystallization point liquid medicine in the PCB industry provided by an embodiment of the utility model;

[0018] In the figure: 1. Automatic adding barrel; 2. Automatic adding pump; 3. Medicine extraction pipe; 4. Filter head; 5. Hot water inlet pipe; 6. Hot water outlet pipe; 7. Hot water coil; 8. Dosing pipe; 9. Dosing box; 10. Pressure relief hole; 11. Adding pipe; 12. Solenoid valve; 13. PLC controller; 14. Production medicine tank; 15. Production line. DETAILED DESCRIPTION

[0019] The following is a further description of the specific implementation of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] like Figure 1 As shown, this embodiment provides an automatic adding system for high crystallization point medicine in the PCB industry, which consists of an automatic adding barrel 1, an automatic adding pump 2, a medicine extraction pipe 3, a filter head 4, a hot water inlet pipe 5, a hot water outlet pipe 6, a hot water coil 7, a dosing pipe 8, a quantitative box 9, a pressure relief hole 10, an adding pipe 11, a solenoid valve 12, a PLC controller 13 and a production medicine tank 14.

[0023] Specifically, the automatic adding barrel 1 is filled with high crystallization point medicine for the PCB industry; a hot water coil 7 is arranged in the automatic adding barrel 1, the front end of the hot water coil 7 is connected to the hot water inlet pipe 5, and the rear end is connected to the hot water outlet pipe 6, and hot water flows in the hot water coil 7 through the hot water inlet pipe 5 and the hot water outlet pipe 6; one end of the automatic adding pump 2 is connected to the medicine extraction pipe 3, and the other end is connected to one end of the medicine adding pipe 8, the medicine extraction pipe 3 is placed in the automatic adding barrel, and a filter head 4 is arranged at the bottom of the medicine extraction pipe 3; the medicine adding pipe 8 is arched; the other end of the medicine adding pipe 8 is connected to the inlet of the quantitative box 9, and a pressure relief hole 10 is opened on the top of the quantitative box 9; the outlet of the quantitative box 9 is connected to one end of the adding pipe 11, and the other end (bottom) of the adding pipe 11 is connected to the production medicine tank 14; the solenoid valve 12 is arranged on the adding pipe 11, and the PLC controller 13 is electrically connected to the automatic adding pump 2 and the solenoid valve 12 respectively.

[0024] In addition, the volume of the automatic adding barrel 1 is 100L, and the material is PVC; the flow rate of the automatic adding pump 2 is 0-100L / H; the diameter of the hot water coil 7 is 2cm, and the material is 304 stainless steel; the diameter of the drug extraction tube 3 is 1cm, and the material is PE; the diameter of the drug adding tube 8 is 1cm, the arch height is 3cm, and the material is PE; the volume of the quantitative box 9 is 500ml, and the material is PE; the diameter of the pressure relief hole 10 is 1.5cm; the brand of the PLC controller 13 is Siemens.

[0025] Working principle: add high crystallization point medicine into the automatic adding barrel 1, and continuously add hot water to the hot water coil 7 through the hot water inlet pipe 5, and discharge it through the hot water outlet pipe 6 after completing the heat exchange with the medicine, so as to ensure that the medicine is maintained within a certain temperature range, set the medicine adding frequency, and instruct the automatic adding pump 2 to start through the PLC controller 13, and add a certain amount of medicine into the quantitative box 9 through the arched dosing pipe 8. After the medicine is added, the PLC controller 13 instructs the solenoid valve 12 to open, and after the medicine in the quantitative box 9 completely flows into the production medicine tank 14 on the side of the production line 15, the solenoid valve 12 is closed to complete the automatic addition of the high crystallization point medicine.

[0026] In summary, the automatic adding system of high crystallization point medicine in the PCB industry installs a hot water coil in the automatic adding barrel to control the temperature of the medicine in the automatic adding barrel above the crystallization point, and installs a filter head at the bottom of the medicine extraction pipe to prevent small crystals and impurities from entering the medicine adding pipe. The horizontal pipeline is changed to an arch design to prevent the crystallization of residual medicine in the pipeline, avoid the crystallization blockage of the automatic adding pipeline, and ensure the stable addition of medicine.

[0027] It should be understood that the contents not described in detail in this embodiment are all prior art.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automatic adding system for high crystallization point liquid medicine in PCB industry, characterized in that: It includes an automatic adding barrel, an automatic adding pump, a drug extraction pipe, a hot water coil, a drug adding pipe, a quantitative box, an adding pipe, a solenoid valve, a PLC controller and a production medicine water tank; the automatic adding barrel is filled with high crystallization point medicine for the PCB industry, a hot water coil is arranged in the automatic adding barrel, hot water flows in the hot water coil, one end of the automatic adding pump is connected to the drug extraction pipe, and the other end is connected to one end of the drug adding pipe, the drug extraction pipe is placed in the automatic adding barrel and is equipped with a filter head, the drug adding pipe is arched, the other end of the drug adding pipe is connected to the inlet of the quantitative box, the outlet of the quantitative box is connected to one end of the adding pipe, the solenoid valve is arranged on the adding pipe, the other end of the adding pipe is connected to the production medicine water tank, and the PLC controller is electrically connected to the automatic adding pump and the solenoid valve respectively.

2. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: It also includes a hot water inlet pipe and a hot water outlet pipe. The front end of the hot water coil is connected to the hot water inlet pipe, and the rear end is connected to the hot water outlet pipe.

3. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: It also includes a pressure relief hole, which is arranged on the quantitative box.

4. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: The volume of the automatic adding barrel is 100L and the material is PVC.

5. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: The flow rate of the automatic adding pump is 0-100L / H.

6. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: The hot water coil has a diameter of 2cm and is made of 304 stainless steel.

7. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: The diameter of the drug extraction tube is 1cm and the material is PE.

8. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: The diameter of the dosing tube is 1 cm, the arch height is 3 cm, and the material is PE.

9. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 1 is characterized in that: The volume of the quantitative box is 500ml and the material is PE.

10. The automatic adding system of high crystallization point liquid medicine in PCB industry according to claim 3 is characterized in that: The diameter of the pressure relief hole is 1.5 cm.

Images