Printed circuit board substrate horizontal production equipment with real-time board blocking detection and alarm functions

Abstract

According to the printed circuit board substrate horizontal production equipment with the real-time board blocking detection and alarm functions, the substrate conveying mechanism is divided into a plurality of detection sections, and the board feeding sensors are arranged on the board feeding sections of the detection sections or near the board feeding sections of the detection sections and used for sensing the substrates entering the board feeding sections; the plate discharging sensor is arranged near the plate discharging section of each detection section and is used for sensing the substrate discharged from the plate discharging section; and then, the data stream comparison module can compare the incoming board data stream with the outgoing board data stream so as to obtain whether the corresponding detection section has a board blocking phenomenon or not, and then a reminding signal capable of reminding the occurrence of board blocking is sent to the board blocking display. Therefore, the whole entering signal of the substrate can be detected and is irrelevant to the length of the substrate and the gap between the substrates, so that the detection of the information of the blocking plate is more accurate, and the alarm reliability of the system is high.

Description

Technical Field

[0001] The utility model relates to the field of electroplating, in particular to a board blocking detection device for a horizontal production line of a printed circuit board (PCB) substrate. Background Art

[0002] In the PCB substrate production process, the existing horizontal production device (horizontal production line) of printed circuit board substrates often causes production line blockage (the blockage is not limited to IC substrates and PCB boards) due to abnormal conditions of production equipment, resulting in product scrapping and equipment damage. The traditional counting and detection alarm device cannot monitor the blockage in time, and only triggers an alarm when the number of blocked boards exceeds a certain number. One blockage will cause a large number of scrapped boards; the function is single, and it is unable to monitor abnormal conditions such as stacked boards, chasing boards, and board deviation; when the production line speed changes, false alarms are prone to occur; when a blockage occurs, the position of the blockage cannot be located, and manual inspection of the production line is required to find the abnormal position for processing; when the sensor is damaged or fails, it cannot self-detect, and the system reliability is low. Therefore, it is necessary to design a new type of blockage detection device to monitor production in real time and quickly trigger an alarm to reduce product scrapping and save abnormal processing time; at the same time, the system can self-detect to improve reliability.

[0003] Figure 1 The invention relates to a plate-counting blockage detection system for an existing horizontal production device for printed circuit board substrates. A plate-entry detection sensor 5 is installed at a plate-entry section 1, and a plate-exit detection sensor 28 is installed at a plate-exit section 29. Transmission motors 7, 17, and 27 drive conveying rollers 13 to operate, and rollers 13 then drive production plates 4 to move from the plate-entry section 1 to the plate-exit section 29 in the direction indicated by arrow 6. By measuring the length of the production line (the distance from the plate-entry detection sensor 5 to the plate-exit detection sensor 28) L, the longitudinal dimension P of the plate, and the distance D between two plates, the set number of plates C=L / (P+D) is calculated, and the value C is preset in the touch screen 10 of the control cabinet 8. During production, a plate-entry section 1 is fed with a plurality of plates, and a plurality of plates are fed with a plurality of plates. Production board 4, when the production board 4 passes through the board input detection sensor 5, the piece counter in the touch screen 10 will record the cumulative number of boards put in, and the counter value will be accumulated for each board put in. When the board runs to the board output detection sensor 28, the counter value will be decremented for each board sent out. Therefore, the piece counter records the number of production boards C1 currently in the production equipment; if the piece count value C1 <= the set piece count C, the system will run normally and no board jam alarm will be generated; when the piece count value C1 > the set piece count C, it is judged that a board jam has occurred, an alarm is triggered, the sound and light warning light 9 lights up and a buzzer alarm is issued, and the touch screen displays the current piece count value C1.

[0004] The above-mentioned disadvantages of the conventional piece counting type blockage detection are:

[0005] Each time the length of the production board is changed, the number of pieces C must be calculated according to the formula "C = L / (P+D)" and input into the touch screen;

[0006] Different lengths of production boards cannot be mixed, which will cause counting alarm errors;

[0007] The gap between the plates must be kept consistent. A large gap error will affect the plate counting value, resulting in no alarm or false alarm.

[0008] When the speed of one section of the production line is changed, it will affect the set number of pieces C, causing false alarms;

[0009] The counting value C1 must be greater than the set value C to trigger the alarm, and the alarm will only be generated when there are a large number of blocked plates;

[0010] When a blockage occurs, the location of the blockage cannot be indicated and the production line needs to be inspected to find the location of the blockage;

[0011] When the in-board or out-board sensor fails, the alarm system will fail. Utility Model Content

[0012] The utility model aims to provide horizontal production equipment for printed circuit board substrates with real-time detection and board blocking alarm, which can detect board blocking problems in real time during the production process, and the detection is concise, timely and accurate.

[0013] In order to achieve the above-mentioned utility model object, the utility model provides a printed circuit board substrate horizontal production equipment with real-time detection and board blockage alarm, which includes:

[0014] Machine base;

[0015] A processing machine assembly disposed on the machine base for performing a number of processing procedures on a printed circuit board substrate;

[0016] A substrate conveying mechanism is arranged above the machine base, and the substrate conveying mechanism conveys the substrate to a plurality of processing machine components to complete the basically required processing, wherein the substrate conveying mechanism is divided into a plurality of detection sections along the conveying direction, each of the detection sections includes a board entry section and a board exit section; and a board blocking detection mechanism,

[0017] Wherein, the blockage detection mechanism comprises:

[0018] A plurality of detection components, each of which includes a board entry sensor and a board exit sensor, wherein the board entry sensor is disposed above the board entry section to sense a substrate entering the board entry section; the board exit sensor is disposed above the board exit section to sense a substrate exiting the board exit section;

[0019] A plurality of running encoders, each of which is arranged on the main transmission shaft of each of the detection sections and is used to detect the running speed of the horizontal production line of the detection section;

[0020] A board entry waveform data stream generator connected to the board entry sensor to receive information from the board entry sensor and the corresponding operation encoder to generate a board entry data stream representing board entry status information of each detection segment;

[0021] A board-out waveform data stream generator connected to the board-out sensor receives information from the board-out sensor and the corresponding operation encoder to generate a board-out data stream representing board-out status information of each detection section;

[0022] A plurality of data stream comparators, each of which receives the inbound data stream and the outbound data stream of each detection section and compares the difference between the data streams to determine the occurrence of a board jam and sends a board jam signal; and

[0023] The blockage signal is received and a blockage display is generated to inform the staff of the reminder signal.

[0024] Furthermore, the board-incoming data stream is a pulse data stream.

[0025] Furthermore, the outbound data stream is a pulse data stream.

[0026] Furthermore, the blocking plate display is a touch screen human-machine interface.

[0027] Furthermore, the blocking plate display is an audible and visual alarm.

[0028] The utility model provides horizontal production equipment for printed circuit board substrates with real-time detection and blockage alarm. Since the substrate transmission mechanism of the horizontal production line is divided into several detection sections, the board entry sensor is arranged at or near the board entry section of each detection section, for example, above or below the board entry section, to sense the substrate entering the board entry section, and the board exit sensor is arranged at or near the board exit section of each detection section, for example, above or below the board exit section, to sense the substrate exiting from the board exit section; then, a data stream comparator can compare the board entry data stream and the board exit data stream, so as to determine whether the corresponding detection section has a board blockage phenomenon, and then send a reminder signal to the board blockage display to prompt the occurrence of a board blockage. It can be seen that the alarm device for real-time detection of board blockage in the horizontal production line of printed circuit board substrates of the utility model only detects the overall entry signal of the substrate, which has nothing to do with the length of the substrate itself and the gap between the boards, so the detection of board blockage information is more accurate. In addition, the production line is divided into several detection sections, so once a board blockage occurs in a certain detection section, the board blockage display will send out an alarm reminder signal corresponding to the detection section, so that the staff can take troubleshooting measures in a timely and accurate manner, which is convenient for rapid processing and will not cause false alarms due to changes in factors such as speed. The reliability of the system alarm is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of a traditional piece counting detection blockage board used in a horizontal production line of PCB substrates.

[0030] Figure 2 It is a schematic diagram of an embodiment of a printed circuit board substrate horizontal production equipment with real-time detection and board blockage alarm provided by the utility model.

[0031] Figure 3 It is a structural schematic diagram of an embodiment of a board blockage detection mechanism of a printed circuit board substrate horizontal production equipment with real-time board blockage detection and alarm provided by the utility model.

[0032] Figure 4 It is an embodiment of an incoming board data stream representing incoming board information detected by an incoming board waveform data stream generator.

[0033] Figure 5 It is a pulse waveform diagram of several embodiments of the out-board data stream representing the out-board information detected by the out-board waveform data stream generator.

[0034] Fig. 6A , 6B and Figure 6C is a structural view of the encoder. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail.

[0036] See also Figure 2 The utility model provides a horizontal production equipment for printed circuit board substrates with real-time detection of board blockage alarm, including a machine base 100, a processing machine component, a substrate transmission mechanism 101 and a board blockage detection mechanism. The processing machine component is arranged on the machine base 100, including a machine component for performing several processing procedures on the printed circuit board. The substrate transmission mechanism 101 is arranged above the machine base 100, and transmits the substrate to several processing machine components to complete the required processing. The substrate transmission mechanism 101 is divided into several detection sections along the transmission direction, each of which includes a board entry section and a board exit section; a detection component is distributed above each detection section. Among them, the machine base 100, the processing machine component, and the substrate transmission mechanism 101 are commonly used equipment for horizontal production lines of printed circuit board substrates, which can be produced by professional companies on the market or in this field. The utility model provides a horizontal production equipment for printed circuit board substrates with real-time detection of board blockage alarm, which is obtained by combining the board blockage detection mechanism with these components or equipment as described below. In addition, the printed circuit board substrate horizontal production equipment with real-time detection and blockage alarm provided by the utility model also includes a control host 8 and a display screen 10. The control host 8 controls the working progress of the printed circuit board substrate horizontal production line, and the display screen 10 can display the working status.

[0037] The utility model provides a board blockage detection mechanism for printed circuit board substrate horizontal production equipment with real-time board blockage detection alarm, which includes a plurality of detection components, each of which includes a board entry sensor and a board exit sensor, a plurality of operation encoders, a plurality of data stream comparators and a board blockage display.

[0038] In this embodiment, the substrate transport mechanism 101 is divided into two detection sections along the transport direction (horizontal direction from left to right in FIG. 2 ): a first detection section A and a second detection section B. Of course, it can also be divided into more than two detection sections. Thus, the first detection section A includes the first board entry section 1 and the first board exit section 19, and the second detection section B includes the second board entry section 39 (in the figure of this embodiment, it overlaps with the first board exit section 19 and is the same section) and the second board exit section 29.

[0039] See also Figure 2 and Figure 3, a first detection component is provided above the first detection section A, and a second detection component is provided above the second detection section B. The first detection component includes a first board entry sensor 5 and a first board exit sensor 18, and the second detection component includes a second board entry sensor 21 and a second board exit sensor 28. The first board entry sensor 5 is arranged near the first board entry section 1, for example, above or below the first board entry section 1 (in the present embodiment, above the board entry section 1), and is used to sense the board entry information (whether there is a board entry) of the substrate 4 entering the first board entry section 1, and the first board exit sensor 18 is arranged near the first board exit section 19, for example, above or below the first board exit section 19 (in the present embodiment, above the first board exit section 19) and is used to sense the board exit information (whether there is a board exit) of the substrate 4 exiting from the first board exit section 19. Similarly, the second board entry sensor 21 is arranged near the second board entry section 39, for example, above or below the second board entry section 39 (in the present embodiment, above the second board entry section 39), to sense the board entry information of the substrate 4 entering the second board entry section 39, and the second board exit sensor 28 is arranged near the second board exit section 29, for example, above or below the second board exit section 29 (in the present embodiment, above the second board exit section 29), to sense the board exit information of the substrate 4 exiting from the second board exit section 29. In the present embodiment, the first board exit section 19 and the second board entry section 39 are the same section (middle detection section). In this way, the first detection section A and the second detection section B are actually divided into three measurement sections. Of course, the measurement sections can also be set separately.

[0040] For further information, see Figure 3 The board blockage detection mechanism of the utility model is also provided with running encoders 2, 20, 30, which are used to detect the running speed of each measuring section of the horizontal production line. The conveying rollers 13 of each measuring section of the horizontal production line are driven by three transmission motors 7, 17, 27 via the main transmission shaft 32. The main transmission shaft 32 of each measuring section is respectively installed with running encoders 2, 20, 30, which respectively detect the running speed of the rollers of the three measuring sections, namely, the first board entry section 1, the first board exit section 19 (the second board entry section 39) and the second board exit section 29. The roller 13 then drives the substrate 4 to run from each of the above-mentioned board entry sections 1, 39 to the board exit sections 19, 29 in the direction indicated by the arrow 6.

[0041] See also Figure 2 and Figure 3, each detection section of the printed circuit board substrate horizontal production equipment with real-time detection and board jam alarm provided by the utility model is respectively provided with a board entry waveform data stream generator and a board exit waveform data stream generator. For the first detection section A, the first board entry waveform data stream generator 505 receives the board entry information of the first board entry sensor 5 and the running speed information of the first running encoder 2 to generate the first board entry waveform data stream D1. Then, the first board exit waveform data stream generator 606 receives the board exit information of the first board exit sensor 18 and the running speed information of the second running encoder 20 to generate the first board exit waveform data stream D2. In addition, the first data stream comparator 202 receives the first board entry data stream D1 and the first board exit data stream D2 and compares the difference between the data streams to determine whether there is a board jam. If there is a board jam, the first board jam information is sent to the first board jam display 303, and the sound and light alarm 22 sends a sound and light prompt alarm signal (for example, a flashing signal). The first board jam display 303 is a touch screen human-machine interface.

[0042] Similarly, for the second detection section B, the second board-entry waveform data stream generator 605 receives the board-entry information of the first board-entry sensor 21 and the operating speed information of the second transcoder 20 to generate the second board-entry waveform data stream D3. Then, the second board-out waveform data stream generator 706 receives the board-out information of the second board-out sensor 28 and the operating speed information of the third operating encoder 30 to generate the second board-out waveform data stream D4. Then, the second data stream comparator 302 receives the second board-entry data stream D3 and the second board-out data stream D4 and compares the difference between the two data streams to determine whether there is a board blockage phenomenon. If there is a board blockage, the second board blockage information is sent to the second board blockage display 403, and the sound and light alarm 22 also sends a sound and light prompt alarm signal (for example, a flashing signal). The second board blockage display 403 is a touch screen human-machine interface. In addition, the sound and light alarm 9 on the control host 8 can also send a corresponding light prompt alarm signal to further remind the operator.

[0043] The first running encoder 2, the second running encoder 20 and the third running encoder 30 can be conventional encoders, and of course can also be Fig. 6A , 6B , 6C operation encoder. Fig. 6A , 6B 6C is a view of the operating encoder. The encoder disk 33 connected to the production line drive shaft has teeth evenly distributed along the circumference. During operation, the teeth pass through the photoelectric sensor 35. Every time the production line runs a distance S, the encoder disk 33 rotates one tooth position accordingly. The photoelectric sensor 35 detects the change in the tooth, thereby generating an operating pulse signal.

[0044] Since the working modes of the detection units, encoders, input waveform data stream generators, output waveform data stream generators and data stream comparators of the first detection segment A and the second detection segment B are the same, in order to illustrate the working modes of the input waveform data stream generator, the output waveform data stream generator and the data stream comparator, the first detection segment A is taken as an example in this embodiment. Figure 4 The first input waveform data stream D1 is provided. Several data streams are generated in the following way: Figure 4 The data pulses in the circuit are generated in the form of "0" or "1", where "0" means no board is passing through and "1" means a board is passing through. For example, see Figure 4 , the first board waveform data stream generator 505 generates Figure 4 The pulse data stream D1 of the board information is input. Figure 5 The first board-out waveform data stream D2 reflecting the board-out information is generated by the first board-out waveform data stream generator 606. Figure 5 Among the first outgoing waveform data streams D2, D2-1, D2-2 and D2-3 are abnormal waveforms (because they are all related to Figure 4 The first data stream comparator 202 compares it with Figure 4 After comparing the first board input pulse data stream D1 generated by the first board input waveform data stream generator 505, it is determined that they are different, and a signal of a board blockage is sent to the first board blockage display 303, so the first board blockage display 303 will send an alarm prompt signal of a board blockage, indicating that a board blockage has occurred in the first detection section A. At this time, the staff will directly discover the abnormal board blockage phenomenon in the first detection section A, and deal with the board blockage accident in the first detection section A in a timely and accurate manner. Figure 5 In the first outgoing waveform data stream D2, D2-4 is a normal waveform. After the first data stream comparator 202 compares it with the first incoming pulse data stream D1, they are exactly the same and no alarm prompt information will be issued.

[0045] In the utility model, the corresponding detection sensors and pulse sensors are arranged according to the length and structure of the production line, the production process is digitally simulated, the length and position of the product entering the equipment are recorded in real time, the program data will change and adjust in real time as the product moves, when it reaches the next detection point, the program will compare the detection result with the program data in real time, if it is found that the product has blockage, overlapping, etc., an alarm will be triggered, the screen will display the corresponding prompt information, and the corresponding warning light will light up, indicating the abnormal section, reducing product scrapping and facilitating the handling of equipment abnormalities.

[0046] Through the above description, it can be found that, since the substrate transmission mechanism of the horizontal production equipment of printed circuit board substrate with real-time detection and blockage alarm provided by the utility model is divided into several detection sections, the board entry sensor is arranged above the board entry section of each detection section, used to sense the substrate entering the board entry section, and the board exit sensor is arranged above the board exit section of each detection section, used to sense the information of the substrate exiting from the board exit section (normal board exit or abnormal board exit, for example, blockage, overlapped board, etc.); then, the data stream comparator can compare the board entry data stream D1 and the board exit data stream D2, so as to obtain the information whether there is a blockage, and then send out a blockage signal. It can be seen that the alarm device for real-time detection of blockage of printed circuit board substrate horizontal production line of the utility model only detects the overall entry signal of the substrate, which has nothing to do with the length of the substrate and the board gap, so the detection of blockage (overlapped board) information is accurate, and the production line is divided into several detection sections, so once a certain detection section has a blockage, the detection section will generate an alarm signal, so that the fault can be timely and accurately eliminated, and the abnormality can be handled quickly and conveniently, and no false alarm will be caused by speed change, and the system reliability is high.

[0047] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A printed circuit board substrate horizontal production equipment with real-time detection and board blockage alarm, characterized in that: It includes: Machine base; A processing machine assembly disposed on the machine base for performing a number of processing procedures on a printed circuit board substrate; A substrate conveying mechanism disposed above the machine base, the substrate conveying mechanism conveys the substrate to a plurality of processing machine components to complete the basically required processing, wherein the substrate conveying mechanism is divided into a plurality of detection sections along the conveying direction, each of the detection sections comprising a board entry section and a board exit section; and Blockage detection mechanism, Wherein, the blockage detection mechanism comprises: A plurality of detection components, each of which includes a board entry sensor and a board exit sensor, wherein the board entry sensor is disposed above the board entry section to sense a substrate entering the board entry section; the board exit sensor is disposed above the board exit section to sense a substrate exiting the board exit section; A plurality of running encoders, each of which is arranged on the main transmission shaft of each of the detection sections and is used to detect the running speed of the horizontal production line of the detection section; A board entry waveform data stream generator connected to the board entry sensor to receive information from the board entry sensor and the corresponding operation encoder to generate a board entry data stream representing board entry status information of each detection segment; A board-out waveform data stream generator connected to the board-out sensor to receive information from the board-out sensor and the corresponding operation encoder to generate a board-out data stream representing board-out status information of each detection section; A plurality of data stream comparators, each of which receives the inbound data stream and the outbound data stream of each detection section and compares the difference between the data streams to determine the occurrence of a board jam and sends a board jam signal; and The blockage signal is received and a blockage display is generated to inform the staff of the reminder signal.

2. The printed circuit board substrate horizontal production equipment with real-time detection and board blockage alarm according to claim 1 is characterized in that: The board-incoming data stream is a pulse data stream.

3. The printed circuit board substrate horizontal production equipment with real-time detection and board blockage alarm according to claim 1, characterized in that: The outbound data stream is a pulse data stream.

4. The printed circuit board substrate horizontal production equipment with real-time detection and board blockage alarm according to claim 1, characterized in that: The blocking plate display is a touch screen human-machine interface.

5. The printed circuit board substrate horizontal production equipment with real-time detection and board blockage alarm according to claim 1, characterized in that: The blocking plate display is an audible and visual alarm.

Images