Control system and method of coarsening production line

Abstract

The invention provides a control system and method for a coarsening production line, and belongs to the technical field of PCB coarsening production control. The system comprises a coarsening production line, an industrial personal computer and a sensing module; the roughening production line comprises a sand blasting line body and a liquid medicine spraying line body, the sand blasting line body comprises a conveying belt mechanism and a sand blasting mechanism, and the liquid medicine spraying line body comprises a roller mechanism and a liquid spraying mechanism; the industrial personal computer collects the operation state of the roughening production line and the roughening state of the PCB through the sensing module and controls operation of the conveying belt mechanism, the sand blasting mechanism, the rolling wheel mechanism and the liquid spraying mechanism according to collected state data. The industrial personal computer acquires the state data of the coarsening production line through the sensing module, and accurately regulates and controls each mechanism according to the acquired state data, so that the stability and consistency of the coarsening process are ensured, and the quality and production efficiency of PCBs are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of PCB roughening production control, and in particular relates to a control system and method for a roughening production line. Background Art

[0002] In the circuit board manufacturing process, roughening is one of the key steps in copper surface treatment and an indispensable process flow, which is very important to ensure the quality of circuit boards. Roughening can increase the specific surface area of ​​copper foil and provide adhesion between dry film, ink and copper surface, which is the basis of subsequent circuit manufacturing process. At present, there are two main problems in the roughening process: One is excessive corrosion of the copper surface caused by excessive roughening. When the roughening process is too intense or lasts too long, the copper surface will appear noticeably uneven, and may even form holes or cracks. First, once excessive corrosion occurs, the original structure of the copper surface will be destroyed, causing the copper conductor to become thinner, affecting the conductivity of the circuit board. Secondly, the copper ions produced by corrosion may contaminate the roughening solution, affecting the treatment effect of subsequent batches. In addition, the excessively corroded copper surface may have insufficient adhesion in subsequent electroplating and coating processes, causing the coating or plating to fall off easily.

[0003] The second is insufficient adhesion caused by insufficient roughening. When the roughening process is not sufficient or the time is insufficient, the copper surface may remain smooth or only slightly uneven, and the expected roughness cannot be achieved. Insufficient roughening will directly affect the bonding strength of subsequent coatings and platings with the copper surface. The smooth copper surface lacks sufficient mechanical bite points, making it difficult for the coating or plating to adhere firmly. For example, an insufficiently roughened copper surface may result in a weak bonding between the subsequent electroplating layer and the copper substrate, which may easily peel off when subjected to external forces. Another example is that an insufficiently roughened copper surface may also result in a low adhesion between the coating and the copper surface, and the coating is prone to cracking, falling off, and other problems. In addition, an insufficiently roughened copper surface may also cause reliability problems in the circuit board during use, such as decreased conductivity and unstable signal transmission. Summary of the invention

[0004] In a first aspect, an embodiment of the present application provides a control system for a roughening production line, including a roughening production line, an industrial computer, and a sensor module; The roughening production line includes a sandblasting line body and a liquid spraying line body, wherein the sandblasting line body includes a conveyor belt mechanism and a sandblasting mechanism, and the liquid spraying line body includes a roller mechanism and a liquid spraying mechanism; The industrial computer collects the operating status of the roughening production line and the roughening status of the PCB board through the sensor module, and controls the operation of the conveyor belt mechanism, sandblasting mechanism, roller mechanism and liquid spray mechanism according to the collected status data.

[0005] Further, the conveyor belt mechanism includes a conveyor belt and a conveyor motor; The conveying motor drives the conveyor belt to operate; The sandblasting mechanism includes a plurality of lifting frames, each of which is provided with an adjustable sandblasting head, the adjustable sandblasting head is connected to a sandblasting gun, the sandblasting gun is connected to a sand bucket and a first air pump, and a first valve body is provided at the connection between the sandblasting gun and the first air pump; The industrial computer is connected to a conveying motor drive module, which controls the running speed of the conveyor belt, thereby controlling the length of time the PCB board stays in the sandblasting line; The industrial computer is connected with a lifting drive module and an angle adjustment module. The height of the adjustable sandblasting head is adjusted by the lifting drive module, the sandblasting angle of the adjustable sandblasting head is adjusted by the angle adjustment module, and the pressure of the adjustable sandblasting head is adjusted by the first valve body.

[0006] Furthermore, the sandblasting line also includes a sandblasting mechanism, which is arranged at the rear side of the sandblasting mechanism above the conveyor belt mechanism; The sand blowing mechanism includes a fan, and the fan is connected to the industrial computer; The liquid spraying mechanism is provided with a first cleaning area, a liquid spraying area, a second cleaning area and a drying area in sequence from front to back; The first cleaning area and the second cleaning area are both equipped with cleaning nozzles, the liquid spraying area is equipped with a liquid spraying nozzle, and the drying area is equipped with a fan; The liquid medicine spray head is connected to a medicine mixing box through a pipeline, and a second valve body is provided on the pipeline; A stirring device is provided in the medicine mixing box, and the medicine mixing box is also connected to a water tank through a third valve body, and is connected to a medicine liquid tank through a fourth valve body; The roller mechanism includes rollers arranged in each zone, the rollers are connected to roller motors, and the roller motors are connected to roller motor drive modules; The roller motor drives the roller to operate; The cleaning nozzle, the liquid medicine nozzle, the first fan, the second fan, the stirring device, the second valve body, the third valve body, the fourth valve body and the roller motor drive module are all connected to the industrial computer.

[0007] Further, the sensing module includes a temperature sensor, a liquid level sensor, a flow meter, a concentration sensor and a laser detection device; The temperature sensor, liquid level sensor and concentration sensor are arranged in the medicine mixing box, the flow meter is arranged at the pipeline connecting the medicine liquid nozzle and the medicine mixing box, and the laser detection device is arranged at the end of the drying area above the roller mechanism; A heating rod is arranged in the medicine mixing box, and a cooling jacket is arranged on the outer wall of the medicine mixing box. The cooling jacket is connected to a circulating water pipeline, and a water pump and a radiator are also arranged in the circulating water pipeline; The temperature sensor, liquid level sensor, heating rod, water pump, flow meter, concentration sensor and laser detection device are all connected to the industrial computer.

[0008] In a second aspect, an embodiment of the present application further provides a control method for a roughening production line, comprising the following steps: S1. The industrial computer obtains the target process parameters for PCB board roughening production; S2. The industrial computer collects the operating status of the roughening production line and the roughening status of the PCB board through the sensor module, compares the collected status data with the target process parameters, and controls the operation of the conveyor belt mechanism, sandblasting mechanism, roller mechanism and liquid spray mechanism according to the comparison results.

[0009] Furthermore, the target process parameters for the roughening production of the PCB board in step S1 include target sandblasting time, target spraying time, target liquid concentration, target liquid temperature, target liquid level, target copper surface roughness and target copper surface uniformity.

[0010] Furthermore, the specific steps of step S2 are as follows: S21. The industrial computer calculates the real-time sandblasting duration according to the running speed of the conveyor belt, calculates the real-time spraying duration according to the rotation speed of the roller, and then adjusts the running speed of the conveyor belt according to the relationship between the real-time spraying duration and the target sandblasting duration, and adjusts the rotation speed of the roller according to the relationship between the real-time spraying duration and the target spraying duration; S22. The industrial computer collects the real-time liquid temperature through the temperature sensor, collects the real-time liquid level of the mixed medicine box through the liquid level sensor, adjusts the liquid temperature in the mixed medicine box according to the relationship between the real-time liquid temperature and the target liquid temperature, and adjusts the liquid level in the mixed medicine box according to the relationship between the real-time liquid level and the target liquid level; S23. The industrial computer detects the copper surface of the roughened PCB board through a laser detection device, and adjusts the sandblasting pressure and spray flow rate according to the detection results.

[0011] Furthermore, the specific steps of step S21 are as follows: S211. The industrial computer obtains the real-time running speed of the conveyor belt, calculates the ratio of the length of the sandblasting area to the real-time running speed of the conveyor belt, and obtains the sandblasting duration; S212. The industrial computer compares the real-time sandblasting duration with the target sandblasting duration; If the real-time sandblasting duration is greater than the target sandblasting duration, proceed to step S213; If the real-time spraying duration is less than the target blasting duration, proceed to step S214; If the real-time sandblasting duration is equal to the target sandblasting duration, the operation of the conveying motor is not adjusted, and the process goes to step S215; S213. The industrial computer reduces the real-time sandblasting time by speeding up the operation of the conveying motor, and returns to step S21; S214. The industrial computer increases the real-time sandblasting time by slowing down the operation of the conveying motor, and returns to step S211; S215. The industrial computer obtains the real-time running speed of the roller, calculates the ratio of the length of the spraying liquid area to the real-time running speed of the roller to obtain the real-time spraying time; S216. The industrial computer compares the implemented spraying time with the target spraying time; If the real-time spraying duration is greater than the target spraying duration, proceed to step S217; If the real-time spraying duration is less than the target spraying duration, proceed to step S218; If the real-time spraying duration is equal to the target spraying duration, the operation of the roller motor is not adjusted, and the process goes to step S22; S217. The industrial computer reduces the real-time spraying time by accelerating the operation of the roller motor, and returns to step S215; S218. The industrial computer increases the real-time spraying time by slowing down the operation of the roller motor and returns to step S215.

[0012] Furthermore, the specific steps of step S22 are as follows: S221. The industrial computer collects the real-time liquid temperature through the temperature sensor and compares the real-time liquid temperature with the target liquid temperature; If the real-time liquid medicine temperature is greater than the target liquid medicine temperature, proceed to step S222; If the real-time liquid medicine temperature is lower than the target liquid medicine temperature, the process goes to step S223; If the real-time liquid medicine temperature is equal to the target liquid medicine temperature, the liquid medicine temperature of the medicine mixing box is not adjusted, and the process goes to step S224; S222. The industrial computer controls the heating rod to heat the liquid medicine in the mixed medicine box, and returns to step S221; S223. The industrial computer controls the operation of the water pump, and the circulating water pipeline circulates the cooling water to the cooling jacket to cool the liquid in the mixing box, and returns to step S221; S224. The industrial computer collects the real-time liquid level of the liquid through the liquid level sensor, and determines whether the real-time liquid level is less than the target liquid level; If yes, go to step S225; If not, proceed to step S23; S225. The industrial computer calculates the difference between the target liquid level and the real-time liquid level, and then calculates the required water replenishment amount and the required drug replenishment amount according to the target liquid concentration, and then adds the required water replenishment amount through the third valve body, adds the required drug replenishment amount through the fourth valve body, and starts the stirring device to stir for the set time.

[0013] Furthermore, the specific steps of step S23 are as follows: S231. The industrial computer controls the laser detection device to emit a laser beam to irradiate the copper surface of the roughened PCB board; S232. The industrial computer converts the received laser signal into an electrical signal and identifies the three-dimensional morphological information of the copper surface of the PCB board after roughening; S233. The industrial computer analyzes the three-dimensional morphological information of the copper surface of the PCB board after roughening, and calculates the real-time copper surface roughness and the real-time copper surface uniformity according to a preset method; S234. The industrial computer compares the real-time copper surface roughness with the target copper surface roughness, and the real-time copper surface uniformity with the target copper surface uniformity; If the real-time copper surface roughness is less than the target copper surface roughness, and the real-time copper surface uniformity is greater than the target copper surface uniformity, then proceed to step S235; If the real-time copper surface roughness is greater than the target copper surface roughness, and the real-time copper surface uniformity is less than the target copper surface uniformity, then proceed to step S236; If the real-time copper surface roughness is equal to the target copper surface roughness, the sandblasting pressure and the spraying flow rate are not adjusted, and the process returns to step S21; S235. The industrial computer controls the first valve body and the second valve body to increase the opening, thereby increasing the sandblasting pressure and the spraying flow rate, and returns to step S231; S236. The industrial computer controls the first valve body and the second valve body to reduce the opening, thereby reducing the sandblasting pressure and the spraying flow rate, and returns to step S231.

[0014] It can be seen from the above technical solutions that the present invention has the following advantages: In the control system and method of the roughening production line provided in the present application, the operating speed of the conveyor belt mechanism and the roller mechanism is accurately controlled by an industrial computer, so that the sandblasting time and the spraying time are accurately controlled, and the problem of excessive or insufficient roughening is avoided. The laser detection device in the sensor module can detect the roughness and uniformity of the copper surface of the PCB board after roughening in real time, ensuring that the roughening effect meets the production requirements and improves product quality; the operating status of the roughening production line and the roughening status of the PCB board are collected by the sensor module, and the production line is dynamically adjusted according to the real-time data, thereby improving production efficiency and flexibility. The temperature and concentration of the liquid medicine are ensured by the automatic control of the heating rod, the cooling jacket and the stirring device in the mixing box, thereby reducing human intervention, simplifying the production process, and ensuring the roughening effect by accurately controlling the sandblasting pressure and the spraying flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 The schematic diagram of the roughening production line is a control system of the roughening production line of the present invention.

[0017] Figure 2 The control diagram of one embodiment of the control system of the roughening production line of the present invention is shown in FIG.

[0018] Figure 3 It is a schematic diagram of the medicine mixing box of the control system of the roughening production line of the present invention.

[0019] Figure 4 This is a control schematic diagram of another embodiment of the control system of the roughening production line of the present invention.

[0020] Figure 5 The figure is a flow chart of an example of the control method of the roughening production line of the present invention.

[0021] Figure 6 The figure is a flow chart of another embodiment of the control method of the roughening production line of the present invention.

[0022] Among them, 1-industrial computer; 2-sensor module; 3-sandblasting line; 3.1-conveyor belt mechanism; 3.2-sandblasting mechanism; 4-liquid spraying line; 4.1-roller mechanism; 4.2-liquid spraying mechanism; 5-conveyor belt; 6-adjustable sandblasting head; 7-conveyor motor drive module; 8-lifting drive module; 9-angle adjustment module; 10-first fan; 11-first cleaning area; 12-liquid spraying area; 13-second cleaning area; 14-drying area; 15- Cleaning nozzle; 16-medicine nozzle; 17-second fan; 18-medicine mixing box; 19-second valve body; 20-stirring device; 21-third valve body; 22-water tank; 23-fourth valve body; 24-medicine tank; 25-roller; 26-roller motor drive module; 27-temperature sensor; 28-liquid level sensor; 29-flow meter; 30-concentration sensor; 31-laser detection device; 32-heating rod; 33-water pump; 34-first valve body. DETAILED DESCRIPTION

[0023] The control system of the roughening production line will be described in detail below, and various embodiments of the present disclosure will be described more fully. The present disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but rather the present disclosure should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present disclosure.

[0024] In order to clearly describe the technical solutions of the embodiments of the present application, some terms and technologies involved in the embodiments of the present application are briefly introduced below: 1. PCB is the abbreviation of Printed Circuit Board. It is a basic component used to support and connect electronic components. The roughening production line of this application is to roughen the printed circuit board.

[0025] 2. Sand blasting The sandblasting process is part of the roughening process and is a method of surface treatment for circuit boards. Sand is sprayed to clean the surface and improve the surface roughness. During the sandblasting process, due to the high-speed impact of the sand, impurities such as copper layer dirt, oxide layer and welding slag on the surface can be effectively removed, making the surface smooth and clean, while also improving the surface roughness.

[0026] 3. Spray liquid Spraying liquid is a part of the roughening process after the sandblasting process. By spraying the super roughening liquid on the copper surface of the PCB after sandblasting, it helps to improve the adhesion between the copper surface and the solder mask or dry film, thereby improving the quality and reliability of the PCB. Spraying liquid is to micro-etch the copper foil surface of the PCB to make the adhesion between the solder mask or dry film and the copper surface stronger. It can micro-etch the surface of copper and copper alloys to generate a concave and convex roughened surface, thereby improving adhesion.

[0027] Hereinafter, the terms "include" or "may include" used in various embodiments of the present disclosure indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present disclosure, the terms "include", "have", and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components, or a combination of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components, or a combination of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components, or a combination of the foregoing.

[0028] In various embodiments of the present disclosure, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0029] The expressions (such as "first", "second", etc.) used in the various embodiments of the present disclosure may modify the various constituent elements in the various embodiments, but may not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0030] It should be noted that if it is described that one component element is “connected” to another component element, the first component element may be directly connected to the second component element, and a third component element may be “connected” between the first component element and the second component element. Conversely, when one component element is “directly connected” to another component element, it can be understood that there is no third component element between the first component element and the second component element.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The following problems exist in the roughening process of circuit board manufacturing: First, excessive corrosion of the copper surface caused by excessive roughening. The original structure of the copper surface is destroyed, the copper conductor becomes thinner, and the conductivity is affected; the copper ions produced may contaminate the roughening solution, affecting the effect of subsequent batch processing; in subsequent electroplating and coating processes, the coating or plating is easy to fall off and the adhesion is insufficient. Second, insufficient adhesion is caused by insufficient roughening. The copper surface cannot reach the expected roughness, which affects the bonding strength of the coating and plating with the copper surface; the smooth copper surface lacks mechanical bite points, making it difficult for the coating or plating to adhere firmly; under the action of external force, the electroplating layer or coating is easy to peel off, cracking, falling off and other problems; it may cause reliability problems of the circuit board during use, such as reduced conductivity and unstable signal transmission.

[0033] The above problems directly affect the quality of the circuit board and the reliability of the subsequent manufacturing process. Therefore, the roughening process needs to be strictly controlled to ensure that the ideal roughening effect is achieved. To this end, the present application provides a control system for a roughening production line to solve the above problems.

[0034] See also Figure 1 Shown and Figure 2 Schematic diagram of a control system of a roughening production line in a specific embodiment, the system includes: Roughening production line, industrial computer 1 and sensor module 2; The roughening production line includes a sandblasting line 3 and a liquid spraying line 4. The sandblasting line 3 includes a conveyor belt mechanism 3.1 and a sandblasting mechanism 3.2. The liquid spraying line 4 includes a roller mechanism 4.1 and a liquid spraying mechanism 4.2. It should be noted that the sandblasting line 3 is at the front end of the liquid spraying line 4. The sandblasting line 3 uses a conveyor belt mechanism 3.1 to transport the circuit board, while the liquid spraying line 4 uses a roller mechanism 4.1 to transport the circuit board. like Figure 2 As shown, the industrial computer 1 collects the operating status of the roughening production line and the roughening status of the PCB board through the sensor module 2, and controls the operation of the conveyor belt mechanism 3.1, the sandblasting mechanism 3.2, the roller mechanism 4.1 and the liquid spraying mechanism 4.2 according to the collected status data.

[0035] The present invention accurately controls the running speed of the conveyor belt mechanism 3.1 and the roller mechanism 4.1 through the industrial computer 1, realizes the precise regulation of the sandblasting time and the spraying time, avoids the problem of excessive or insufficient roughening, collects the running status of the roughening production line and the roughening status of the PCB board through the sensor module 2, and dynamically adjusts the production line according to the real-time data, thereby improving the production efficiency and flexibility.

[0036] Further, as a refinement and expansion of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process of this embodiment, another control system of a roughing production line is provided, such as Figure 1 As shown, the system includes: a roughening production line, an industrial computer 1 and a sensor module 2; The roughening production line includes a sandblasting line 3 and a liquid spraying line 4. The sandblasting line 3 includes a conveyor belt mechanism 3.1 and a sandblasting mechanism 3.2. The liquid spraying line 4 includes a roller mechanism 4.1 and a liquid spraying mechanism 4.2. The industrial computer 1 collects the operation status of the roughening production line and the roughening status of the PCB board through the sensor module 2, and controls the operation of the conveyor belt mechanism 3.1, the sandblasting mechanism 3.2, the roller mechanism 4.1 and the liquid spraying mechanism 4.2 according to the collected status data; It should be noted that by integrating the roughening production line, the industrial computer 1 and the sensor module 2, comprehensive monitoring and precise control of the roughening production line are achieved. The sensor module 2 collects the operating status of the roughening production line and the roughening status of the PCB board in real time. The industrial computer 1 can accurately control each mechanism according to the collected status data, thereby ensuring the stability and consistency of the roughening process and improving the quality and production efficiency of the PCB board. The conveyor belt mechanism 3.1 includes a conveyor belt 5 and a conveyor motor; The conveying motor drives the conveying belt 5 to operate; The sandblasting mechanism 3.2 includes a plurality of lifting frames, each of which is provided with an adjustable sandblasting head 6, the adjustable sandblasting head 6 is connected to a sandblasting gun, the sandblasting gun is connected to a sand bucket and a first air pump, and a first valve body 34 is provided at the connection between the sandblasting gun and the first air pump; like Figure 4 As shown, the industrial computer 1 is connected to a conveying motor driving module 7, and the running speed of the conveying belt 5 is controlled by the conveying motor driving module 7, thereby controlling the length of time the PCB board stays in the sandblasting line 3 for sandblasting; The industrial computer 1 is connected to a lifting drive module 8 and an angle adjustment module 9, and the height of the adjustable sandblasting head 6 is adjusted by the lifting drive module 8, the sandblasting angle of the adjustable sandblasting head 6 is adjusted by the angle adjustment module 9, and the pressure of the adjustable sandblasting head 6 is adjusted by the first valve body 34; It should be noted that the conveyor belt mechanism 3.1 and the sandblasting mechanism 3.2 make the roughening process more flexible and controllable. The conveyor motor drive module 7 is controlled by the industrial computer 1 to accurately adjust the running speed of the conveyor belt 5, thereby controlling the length of time the PCB board stays in the sandblasting line 3 for sandblasting. At the same time, the height and sandblasting angle of the adjustable sandblasting head 6 can be flexibly adjusted through the lifting drive module 8 and the angle adjustment module 9, further improving the accuracy and uniformity of the roughening process. The sandblasting line 3 also includes a sandblasting mechanism, which is arranged on the rear side of the sandblasting mechanism 3.2 above the conveyor belt mechanism 3.1; The sand blowing mechanism comprises a first fan 10, and the first fan 10 is connected to the industrial computer 1; It should be noted that the sandblasting line 3 is equipped with a sand blowing mechanism, which effectively removes the sand particles remaining after sandblasting and improves the cleanliness of the PCB board; The liquid spraying mechanism 4.2 is provided with a first cleaning area 11, a liquid spraying area 12, a second cleaning area 13 and a drying area 14 in sequence from front to back; The first cleaning area 11 and the second cleaning area 13 are both provided with cleaning nozzles 15, the liquid spraying area 12 is provided with a liquid spraying nozzle 16, and the drying area 14 is provided with a second fan 17; like Figure 3 As shown, the liquid medicine spray head 16 is connected to a medicine mixing box 18 through a pipeline, and a second valve body 19 is provided on the pipeline; A stirring device 20 is provided in the medicine mixing box 18, and the medicine mixing box 18 is also connected to a water tank 22 through a third valve body 21, and is connected to a medicine liquid tank 24 through a fourth valve body 23; The roller mechanism 4.1 comprises a roller 25 arranged in each zone, the roller 25 is connected to a roller motor, and the roller motor is connected to a roller motor driving module 26; The roller motor drives the roller 25 to operate; like Figure 4 As shown, the cleaning nozzle 15, the liquid medicine nozzle 16, the first fan 10, the second fan 17, the stirring device 20, the second valve body 19, the third valve body 21, the fourth valve body 23 and the roller motor drive module 26 are all connected to the industrial computer 1; It should be noted that the liquid spraying mechanism 4.2 includes the steps of cleaning, spraying, re-cleaning and drying, which ensures that the PCB board is thoroughly cleaned and dried after roughening. At the same time, the roller mechanism 4.1 enables the PCB board to move smoothly during the liquid spraying process, further improving the roughening effect and production efficiency. The sensing module 2 includes a temperature sensor 27, a liquid level sensor 28, a flow meter 29, a concentration sensor 30 and a laser detection device 31; The temperature sensor 27, the liquid level sensor 28 and the concentration sensor 30 are arranged in the medicine mixing box 18, the flow meter 29 is arranged at the pipeline connecting the medicine liquid spray head 16 and the medicine mixing box 18, and the laser detection device 31 is arranged at the end of the drying area 14 above the roller mechanism 4.1; A heating rod 32 is provided in the medicine mixing box 18, and a cooling jacket is provided on the outer wall of the medicine mixing box 18. The cooling jacket is connected to a circulating water pipeline, and a water pump 33 and a radiator are also provided in the circulating water pipeline. like Figure 4 As shown, the temperature sensor 27, the liquid level sensor 28, the heating rod 32, the water pump 33, the flow meter 29, the concentration sensor 30 and the laser detection device 31 are all connected to the industrial computer 1; It should be noted that the sensor module 2 comprehensively monitors various parameters of the roughening production line through various sensors. The settings of the temperature sensor 27, the liquid level sensor 28, the flow meter 29 and the concentration sensor 30 enable the industrial computer 1 to obtain the state of the liquid medicine in the mixing box 18 in real time, so as to perform precise regulation. The setting of the laser detection device 31 enables the industrial computer 1 to detect the roughening effect of the copper surface of the PCB board in real time, further improving the accuracy and reliability of the roughening process; the sensor module 2 collects the operating status of the roughening production line and the roughening status of the PCB board, and dynamically adjusts the production line according to the real-time data, thereby improving production efficiency and flexibility. The heating rod 32, the cooling jacket and the stirring device 20 in the mixing box 18 are automatically controlled to ensure the temperature and concentration of the liquid medicine, reduce human intervention, simplify the production process, and ensure the roughening effect by precisely controlling the sandblasting pressure and the spraying flow rate.

[0037] See also Figure 5 The schematic diagram of the control method of the roughening production line in the specific embodiment shown, the method steps are as follows: S1. The industrial computer obtains the target process parameters for PCB board roughening production; S2. The industrial computer collects the operating status of the roughening production line and the roughening status of the PCB board through the sensor module, compares the collected status data with the target process parameters, and controls the operation of the conveyor belt mechanism, the sandblasting mechanism, the roller mechanism and the liquid spraying mechanism according to the comparison results; It should be noted that the present invention achieves precise control of the roughening process by acquiring the target process parameters of the roughening production of the PCB board and collecting the operating status of the roughening production line and the roughening status of the PCB board in real time. By comparing the collected status data with the target process parameters, the industrial computer can adjust the operating parameters of each mechanism in time to ensure that the roughening process meets the expected process requirements.

[0038] Further, as a refinement and extension of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process of this embodiment, another control method for a rough production line is provided, such as Figure 6 As shown, the method comprises the following steps: S1. The industrial computer obtains the target process parameters for the roughening production of the PCB board; the target process parameters for the roughening production of the PCB board in step S1 include the target sandblasting time, the target spraying time, the target liquid concentration, the target liquid temperature, the target liquid level, the target copper surface roughness and the target copper surface uniformity; It should be noted that the setting of target process parameters makes the control method more specific and operable. By setting parameters such as target sandblasting time, target spraying time, target liquid concentration, etc., the industrial computer can more accurately control the roughening process, thereby further improving the quality and production efficiency of PCB boards. The specific steps of step S2 are as follows: S21. The industrial computer calculates the real-time sandblasting duration according to the running speed of the conveyor belt, calculates the real-time spraying duration according to the rotation speed of the roller, and then adjusts the running speed of the conveyor belt according to the relationship between the real-time spraying duration and the target sandblasting duration, and adjusts the rotation speed of the roller according to the relationship between the real-time spraying duration and the target spraying duration; S22. The industrial computer collects the real-time liquid temperature through the temperature sensor, collects the real-time liquid level of the mixed medicine box through the liquid level sensor, adjusts the liquid temperature in the mixed medicine box according to the relationship between the real-time liquid temperature and the target liquid temperature, and adjusts the liquid level in the mixed medicine box according to the relationship between the real-time liquid level and the target liquid level; S23. The industrial computer detects the copper surface of the roughened PCB board through a laser detection device, and adjusts the sandblasting pressure and spraying flow rate according to the detection results; It should be noted that comprehensive monitoring and precise control of the roughening process are achieved through specific steps. The stability and consistency of the roughening process are ensured by real-time calculation of the sandblasting time and the spraying time, and adjustment based on the comparison results with the target process parameters. At the same time, the precise control of the temperature and liquid level of the liquid and the real-time monitoring and adjustment of the roughness and uniformity of the copper surface further improve the roughening effect and product quality.

[0039] In an embodiment of the present invention, based on step S21, step S22, and step S23, a possible embodiment is given below to illustrate its specific implementation scheme in a non-limiting manner.

[0040] The specific steps of step S21 are as follows: S211. The industrial computer obtains the real-time running speed of the conveyor belt, calculates the ratio of the length of the sandblasting area to the real-time running speed of the conveyor belt, and obtains the sandblasting duration; S212. The industrial computer compares the real-time sandblasting duration with the target sandblasting duration; If the real-time sandblasting duration is greater than the target sandblasting duration, proceed to step S213; If the real-time spraying duration is less than the target blasting duration, proceed to step S214; If the real-time sandblasting duration is equal to the target sandblasting duration, the operation of the conveying motor is not adjusted, and the process goes to step S215; S213. The industrial computer reduces the real-time sandblasting time by speeding up the operation of the conveying motor, and returns to step S21; S214. The industrial computer increases the real-time sandblasting time by slowing down the operation of the conveying motor, and returns to step S211; S215. The industrial computer obtains the real-time running speed of the roller, calculates the ratio of the length of the spraying liquid area to the real-time running speed of the roller to obtain the real-time spraying time; S216. The industrial computer compares the implemented spraying time with the target spraying time; If the real-time spraying duration is greater than the target spraying duration, proceed to step S217; If the real-time spraying duration is less than the target spraying duration, proceed to step S218; If the real-time spraying duration is equal to the target spraying duration, the operation of the roller motor is not adjusted, and the process goes to step S22; S217. The industrial computer reduces the real-time spraying time by accelerating the operation of the roller motor, and returns to step S215; S218. The industrial computer increases the real-time spraying time by slowing down the operation of the roller motor, and returns to step S215; It should be noted that the target spraying time is a time range. If the real-time spraying time is within the time range, it is considered that the real-time spraying time is equal to the target spraying time. If the real-time spraying time is less than the lower limit of the time range, it is considered that the real-time spraying time is less than the target spraying time. If the real-time spraying time is greater than the upper limit of the time range, it is considered that the real-time spraying time is greater than the target spraying time. The specific steps of step S21 realize the precise control of the running speed of the conveyor belt and the roller, and ensure that the residence time of the PCB board during the roughening process meets the preset requirements by real-time calculation and adjustment of the sandblasting time and the spraying time, thereby improving the stability and consistency of the roughening effect; The specific steps of step S22 are as follows: S221. The industrial computer collects the real-time liquid temperature through the temperature sensor and compares the real-time liquid temperature with the target liquid temperature; If the real-time liquid medicine temperature is greater than the target liquid medicine temperature, proceed to step S222; If the real-time liquid medicine temperature is lower than the target liquid medicine temperature, the process goes to step S223; If the real-time liquid medicine temperature is equal to the target liquid medicine temperature, the liquid medicine temperature of the medicine mixing box is not adjusted, and the process goes to step S224; S222. The industrial computer controls the heating rod to heat the liquid medicine in the mixed medicine box, and returns to step S221; S223. The industrial computer controls the operation of the water pump, and the circulating water pipeline circulates the cooling water to the cooling jacket to cool the liquid in the mixing box, and returns to step S221; S224. The industrial computer collects the real-time liquid level of the liquid through the liquid level sensor, and determines whether the real-time liquid level is less than the target liquid level; If yes, go to step S225; If not, proceed to step S23; S225. The industrial computer calculates the difference between the target liquid level and the real-time liquid level, and then calculates the required water replenishment amount and the required drug replenishment amount according to the target liquid concentration, and then adds the required water replenishment amount through the third valve body, adds the required drug replenishment amount through the fourth valve body, and starts the stirring device to stir for a set time; It should be noted that the target liquid medicine temperature is a temperature range. If the real-time liquid medicine temperature is within the temperature range, it is considered that the real-time liquid medicine temperature is equal to the target liquid medicine temperature. If the real-time liquid medicine temperature is less than the lower limit of the temperature range, it is considered that the real-time liquid medicine temperature is less than the target liquid medicine temperature. If the real-time liquid medicine temperature is greater than the upper limit of the temperature range, it is considered that the real-time liquid medicine temperature is greater than the target liquid medicine temperature. The required water replenishment amount and the required medicine replenishment amount are calculated according to the target medicine liquid concentration, and then the required water replenishment amount is added through the third valve body, the required medicine replenishment amount is added through the fourth valve body, and the stirring device is started to stir for the set time.

[0041] The specific steps of step S22 realize the precise control of the temperature and level of the drug solution. By collecting the temperature and level data of the drug solution in real time and adjusting them according to the comparison results with the target process parameters, it is ensured that the state of the drug solution in the drug mixing box meets the preset requirements, thereby improving the stability of the roughening process and the product quality. The specific steps of step S23 are as follows: S231. The industrial computer controls the laser detection device to emit a laser beam to irradiate the copper surface of the roughened PCB board; S232. The industrial computer converts the received laser signal into an electrical signal and identifies the three-dimensional morphological information of the copper surface of the PCB board after roughening; S233. The industrial computer analyzes the three-dimensional morphological information of the copper surface of the PCB board after roughening, and calculates the real-time copper surface roughness and the real-time copper surface uniformity according to a preset method; S234. The industrial computer compares the real-time copper surface roughness with the target copper surface roughness, and the real-time copper surface uniformity with the target copper surface uniformity; If the real-time copper surface roughness is less than the target copper surface roughness, and the real-time copper surface uniformity is greater than the target copper surface uniformity, then proceed to step S235; If the real-time copper surface roughness is greater than the target copper surface roughness, and the real-time copper surface uniformity is less than the target copper surface uniformity, then proceed to step S236; If the real-time copper surface roughness is equal to the target copper surface roughness, the sandblasting pressure and the spraying flow rate are not adjusted, and the process returns to step S21; S235. The industrial computer controls the first valve body and the second valve body to increase the opening, thereby increasing the sandblasting pressure and the spraying flow rate, and returns to step S231; S236. The industrial computer controls the first valve body and the second valve body to reduce the opening, thereby reducing the sandblasting pressure and the spraying flow rate, and returns to step S231; It should be noted that, similarly, the target copper surface roughness and the target copper surface uniformity are also range values; The specific steps of step S23 realize real-time monitoring and adjustment of the roughness and uniformity of the copper surface. The three-dimensional morphological information of the copper surface is obtained through the laser detection device, and accurate calculation and analysis are performed. The industrial computer can adjust the sandblasting pressure and the spraying flow rate in time according to the comparison results of the real-time copper surface roughness and uniformity with the target value, so as to ensure that the roughened copper surface meets the expected process requirements.

[0042] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0043] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control system for a roughening production line, characterized in that: Including roughening production line, industrial computer and sensor module; The roughening production line includes a sandblasting line body and a liquid spraying line body, wherein the sandblasting line body includes a conveyor belt mechanism and a sandblasting mechanism, and the liquid spraying line body includes a roller mechanism and a liquid spraying mechanism; The industrial computer collects the operating status of the roughening production line and the roughening status of the PCB board through the sensor module, and controls the operation of the conveyor belt mechanism, sandblasting mechanism, roller mechanism and liquid spray mechanism according to the collected status data.

2. The control system of the roughening production line according to claim 1, characterized in that: The conveyor belt mechanism includes a conveyor belt and a conveyor motor; The conveying motor drives the conveyor belt to operate; The sandblasting mechanism includes a plurality of lifting frames, each of which is provided with an adjustable sandblasting head, the adjustable sandblasting head is connected to a sandblasting gun, the sandblasting gun is connected to a sand bucket and a first air pump, and a first valve body is provided at the connection between the sandblasting gun and the first air pump; The industrial computer is connected to a conveying motor drive module, which controls the running speed of the conveyor belt, thereby controlling the length of time the PCB board stays in the sandblasting line; The industrial computer is connected with a lifting drive module and an angle adjustment module. The height of the adjustable sandblasting head is adjusted by the lifting drive module, the sandblasting angle of the adjustable sandblasting head is adjusted by the angle adjustment module, and the pressure of the adjustable sandblasting head is adjusted by the first valve body.

3. The control system of the roughening production line according to claim 1, characterized in that: The sandblasting line also includes a sandblasting mechanism, which is arranged at the rear side of the sandblasting mechanism above the conveyor belt mechanism; The sand blowing mechanism includes a first fan, and the first fan is connected to the industrial computer; The liquid spraying mechanism is provided with a first cleaning area, a liquid spraying area, a second cleaning area and a drying area in sequence from front to back; The first cleaning area and the second cleaning area are both equipped with cleaning nozzles, the liquid spraying area is equipped with a liquid spraying nozzle, and the drying area is equipped with a fan; The liquid medicine spray head is connected to a medicine mixing box through a pipeline, and a second valve body is provided on the pipeline; A stirring device is provided in the medicine mixing box, and the medicine mixing box is also connected to a water tank through a third valve body, and is connected to a medicine liquid tank through a fourth valve body; The roller mechanism includes rollers arranged in each zone, the rollers are connected to roller motors, and the roller motors are connected to roller motor drive modules; The roller motor drives the roller to operate; The cleaning nozzle, the liquid medicine nozzle, the first fan, the second fan, the stirring device, the second valve body, the third valve body, the fourth valve body and the roller motor drive module are all connected to the industrial computer.

4. The control system of the roughening production line according to claim 3, characterized in that: The sensing module includes a temperature sensor, a liquid level sensor, a flow meter, a concentration sensor and a laser detection device; The temperature sensor, liquid level sensor and concentration sensor are arranged in the medicine mixing box, the flow meter is arranged at the pipeline connecting the medicine liquid nozzle and the medicine mixing box, and the laser detection device is arranged at the end of the drying area above the roller mechanism; A heating rod is arranged in the medicine mixing box, and a cooling jacket is arranged on the outer wall of the medicine mixing box. The cooling jacket is connected to a circulating water pipeline, and a water pump and a radiator are also arranged in the circulating water pipeline; The temperature sensor, liquid level sensor, heating rod, water pump, flow meter, concentration sensor and laser detection device are all connected to the industrial computer.

5. A control method for a control system of a roughening production line according to any one of claims 1 to 4, characterized in that: The steps include: S1. The industrial computer obtains the target process parameters for PCB board roughening production; S2. The industrial computer collects the operating status of the roughening production line and the roughening status of the PCB board through the sensor module, compares the collected status data with the target process parameters, and controls the operation of the conveyor belt mechanism, sandblasting mechanism, roller mechanism and liquid spray mechanism according to the comparison results.

6. The control method according to claim 5, characterized in that: The target process parameters for the roughening production of the PCB board in step S1 include target sandblasting time, target spraying time, target liquid concentration, target liquid temperature, target liquid level, target copper surface roughness and target copper surface uniformity.

7. The control method according to claim 6, characterized in that: The specific steps of step S2 are as follows: S21. The industrial computer calculates the real-time sandblasting duration according to the running speed of the conveyor belt, calculates the real-time spraying duration according to the rotation speed of the roller, and then adjusts the running speed of the conveyor belt according to the relationship between the real-time spraying duration and the target sandblasting duration, and adjusts the rotation speed of the roller according to the relationship between the real-time spraying duration and the target spraying duration; S22. The industrial computer collects the real-time liquid temperature through the temperature sensor, collects the real-time liquid level of the mixed medicine box through the liquid level sensor, adjusts the liquid temperature in the mixed medicine box according to the relationship between the real-time liquid temperature and the target liquid temperature, and adjusts the liquid level in the mixed medicine box according to the relationship between the real-time liquid level and the target liquid level; S23. The industrial computer detects the copper surface of the roughened PCB board through a laser detection device, and adjusts the sandblasting pressure and spray flow rate according to the detection results.

8. The control method according to claim 7, characterized in that: The specific steps of step S21 are as follows: S211. The industrial computer obtains the real-time running speed of the conveyor belt, calculates the ratio of the length of the sandblasting area to the real-time running speed of the conveyor belt, and obtains the sandblasting duration; S212. The industrial computer compares the real-time sandblasting duration with the target sandblasting duration; If the real-time sandblasting duration is greater than the target sandblasting duration, proceed to step S213; If the real-time spraying duration is less than the target blasting duration, proceed to step S214; If the real-time sandblasting duration is equal to the target sandblasting duration, the operation of the conveying motor is not adjusted, and the process goes to step S215; S213. The industrial computer reduces the real-time sandblasting time by speeding up the operation of the conveying motor, and returns to step S21; S214. The industrial computer increases the real-time sandblasting time by slowing down the operation of the conveying motor, and returns to step S211; S215. The industrial computer obtains the real-time running speed of the roller, calculates the ratio of the length of the spraying liquid area to the real-time running speed of the roller to obtain the real-time spraying time; S216. The industrial computer compares the implemented spraying time with the target spraying time; If the real-time spraying duration is greater than the target spraying duration, proceed to step S217; If the real-time spraying duration is less than the target spraying duration, proceed to step S218; If the real-time spraying duration is equal to the target spraying duration, the operation of the roller motor is not adjusted, and the process goes to step S22; S217. The industrial computer reduces the real-time spraying time by accelerating the operation of the roller motor, and returns to step S215; S218. The industrial computer increases the real-time spraying time by slowing down the operation of the roller motor and returns to step S215.

9. The control method according to claim 7, characterized in that: The specific steps of step S22 are as follows: S221. The industrial computer collects the real-time liquid temperature through the temperature sensor and compares the real-time liquid temperature with the target liquid temperature; If the real-time liquid medicine temperature is greater than the target liquid medicine temperature, proceed to step S222; If the real-time liquid medicine temperature is lower than the target liquid medicine temperature, proceed to step S223; If the real-time liquid medicine temperature is equal to the target liquid medicine temperature, the liquid medicine temperature of the medicine mixing box is not adjusted, and the process goes to step S224; S222. The industrial computer controls the heating rod to heat the liquid medicine in the mixed medicine box, and returns to step S221; S223. The industrial computer controls the operation of the water pump, and the circulating water pipeline circulates the cooling water to the cooling jacket to cool the liquid in the mixing box, and returns to step S221; S224. The industrial computer collects the real-time liquid level of the liquid through the liquid level sensor, and determines whether the real-time liquid level is less than the target liquid level; If yes, go to step S225; If not, proceed to step S23; S225. The industrial computer calculates the difference between the target liquid level and the real-time liquid level, and then calculates the required water replenishment amount and the required drug replenishment amount according to the target liquid concentration, and then adds the required water replenishment amount through the third valve body, adds the required drug replenishment amount through the fourth valve body, and starts the stirring device to stir for a set time.

10. The control method according to claim 7, characterized in that: The specific steps of step S23 are as follows: S231. The industrial computer controls the laser detection device to emit a laser beam to irradiate the copper surface of the roughened PCB board; S232. The industrial computer converts the received laser signal into an electrical signal and identifies the three-dimensional morphological information of the copper surface of the PCB board after roughening; S233. The industrial computer analyzes the three-dimensional morphological information of the copper surface of the PCB board after roughening, and calculates the real-time copper surface roughness and the real-time copper surface uniformity according to a preset method; S234. The industrial computer compares the real-time copper surface roughness with the target copper surface roughness, and the real-time copper surface uniformity with the target copper surface uniformity; If the real-time copper surface roughness is less than the target copper surface roughness, and the real-time copper surface uniformity is greater than the target copper surface uniformity, then proceed to step S235; If the real-time copper surface roughness is greater than the target copper surface roughness, and the real-time copper surface uniformity is less than the target copper surface uniformity, then proceed to step S236; If the real-time copper surface roughness is equal to the target copper surface roughness, the sandblasting pressure and the spraying flow rate are not adjusted, and the process returns to step S21; S235. The industrial computer controls the first valve body and the second valve body to increase the opening, thereby increasing the sandblasting pressure and the spraying flow rate, and returns to step S231; S236. The industrial computer controls the first valve body and the second valve body to reduce the opening, thereby reducing the sandblasting pressure and the spraying flow rate, and returns to step S231.

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