Material strip splicing detection, material checking and remainder management method and system

Abstract

The invention discloses a material belt splicing detection, material checking and remainder management method and system. The system comprises a production line management system, a manufacturing execution system, an electronic tag system and a tag printing system. The method comprises the following steps: after material belts are spliced, pasting electronic tags on the spliced material belts; the label reader reads label information and sends the information to the production line management system; the production line management system judges whether a material belt splicing event occurs or not, and if yes, information is sent to a manufacturing execution system to inform the manufacturing execution system of material checking; the manufacturing execution system performs checking and comparison and feeds back a checking result to the production line management system; the production line management system controls the action of the object equipment according to the feedback checking result; the manufacturing execution system updates the remaining amount information of the target material managed in the system. In a production process, a material belt splicing event can be accurately detected, and automatic checking of material information and remainder updating management are realized at the same time. The false detection problem is reduced, and the efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of material strip feeding, and in particular relates to a method and system for detecting material strip splicing, checking materials, and managing remainders. Background Art

[0002] With the development of industries such as electronics and 5G communications, SMT placement machines are also developing rapidly. In the production of SMT component placement, in order to avoid using wrong materials and improve production stability, it is often necessary to accurately detect the time point of component tape splicing, check the spliced ​​materials, and manage the remaining materials.

[0003] To achieve the above purpose, a photoelectric sensor is usually used to detect whether a tape splicing event occurs by inducing light projection / shading on the splicing tape. After detecting that there is tape splicing, the operator is notified to manually scan the information on the material tray to perform material verification and material remainder management. Due to the different colors, materials, etc. of the splicing tape or the different splicing methods, the sensing effect of the light signal is different, which will cause the photoelectric sensor to have a low success rate in detecting the tape splicing event, or a false detection (there is actually no tape splicing, but it is mistakenly identified as tape splicing). Therefore, it will not be possible to detect the tape splicing in time and no material verification will be performed, resulting in the placement of wrong components. Unnecessary downtime will occur in the event of a false detection, affecting production efficiency. In addition, even if the tape splicing event is correctly detected, it is necessary to wait for manual scanning of the material for verification and remainder management, which is inefficient and prone to operating errors. In order to solve the above technical problems, the present invention is derived from this. Summary of the invention

[0004] In view of at least one of the above-mentioned technical problems, the object of the present invention is to provide a method and system for detecting material splicing, verifying materials, and managing remainders.

[0005] The technical solution of the present invention is: One of the purposes of the present invention is to provide a method for detecting material splicing, checking materials, and managing remainders, comprising the following steps: After the material strips are spliced, an electronic label is affixed to the spliced ​​material strips, and the electronic label includes the address information of the feeder corresponding to the spliced ​​material strips, the material information and the quantity information of the spliced ​​material strips; During the feeding process of the feeder, the information of the electronic tag is read by the tag reader and the read information is sent to the production line management system of the corresponding production line; The production line management system determines whether a material strip splicing event occurs based on the received information. If a material strip splicing event occurs, the production line management system sends the information to a manufacturing execution system outside the production line to notify material verification; After receiving the material verification notification, the manufacturing execution system verifies and compares the received information with the material information of the target production process, and feeds back the verification result to the corresponding production line management system; The production line management system controls the operation of the target equipment according to the material verification result fed back by the manufacturing execution system. If the verification is OK, the production continues, and the relevant information is sent to the manufacturing execution system to notify the update of the remaining material quantity; After receiving the material remaining quantity update notification, the manufacturing execution system updates the remaining quantity information of the target material managed in the system.

[0006] Preferably, the production line management system includes a first internal communication module, an external communication module, and a material splicing management module; The first internal communication module performs data communication with other modules in the system and the placement machines in the production line, and the external communication module performs data communication with other modules in the system and the manufacturing execution system; In the step where the production line management system determines whether a material tape splicing event occurs based on the received information, the material splicing management module parses the information of the spliced ​​material tape obtained from the first internal communication module and manages the parsed material tape splicing event information, wherein the material tape splicing event information includes but is not limited to event time, placement machine number, workbench, trolley number, feeder rack position, etc., and may also include, for example, placement head, feeder rack serial number, splicing material information such as splicing material ID, substrate ID, material remainder, and other information required for material tape splicing event management.

[0007] Preferably, the production line management module also includes a material verification management module; In the step where the production line management system sends information to the manufacturing execution system outside the production line to notify material verification, the material splicing management module notifies the material verification management module of the material tape splicing event information. After receiving the material tape splicing event notification, the material verification management module obtains the material verification information and sends the information to the manufacturing execution system through the external communication module to implement material verification, and controls the next action of the target equipment according to the feedback of the material verification result; The material verification information includes but is not limited to the target equipment, workbench, trolley, feeder address and splicing material information (for example, including splicing material name, ID, remainder, substitute, etc.), production batch ID and other information required for material verification.

[0008] Preferably, the production line management system further includes a remainder management module. If the verification is OK, the step of continuing production also includes notifying the remainder management module; After receiving the successful verification notification from the material verification management module, the remainder management module obtains the information for material remainder management, and sends this information to the manufacturing execution system through the external communication module to notify the material remainder update management; the material remainder management information includes but is not limited to the object equipment, workbench, trolley, feeder address, production batch ID and splicing material name, ID and quantity and other information required for material remainder management.

[0009] Preferably, in the step of controlling the operation of the target equipment according to the material verification result fed back by the manufacturing execution system, if the verification is NG, the target equipment is notified to stop production and an alarm is displayed to display corresponding information.

[0010] Preferably, the manufacturing execution system includes a material checking function module and a remainder management function module; After receiving the material verification notification from the production line management system, the material verification function module verifies and compares the received information with the object production process material information managed in the system, and feeds back the verification and comparison results to the production line management system, while saving and managing the verification history; In the step of updating the balance information of the object material managed in the system after receiving the material balance update notification, the balance management function module updates the balance information of the object material managed in the system after receiving the material balance update notification and calculating according to the received information.

[0011] Preferably, a second internal communication module is provided in the placement machine, and the label reader is arranged on the placement machine and transmits the label information to the production line management system through the second internal communication module after receiving the information of the read electronic label.

[0012] Preferably, in the material strip splicing step, the material strip splicing is performed manually or by robot operation; When the material strips are spliced ​​by robot operation, a functional module for reading and editing label information is built into the control system of the robot.

[0013] Another object of the present invention is to provide a system for detecting the splicing of material strips, checking materials, and managing the remainder, including several production line management systems, a manufacturing execution system, and an electronic label system, wherein the several production line management systems correspond to the number of production lines in the workshop and any production line management system corresponds to one production line, and any production line has at least one placement machine, the manufacturing execution system is arranged outside the production line and is communicatively connected with the several production line management systems, and any placement machine corresponds to a plurality of feeders, and an electronic label with designated information is arranged on the splicing material strip supplied by any feeder, and the electronic label system includes the electronic label and a label reader for reading the information in the electronic label and transmitting the information to the corresponding production line management system; Any of the production line management systems has a first internal communication module, an external communication module, a material strip splicing management module, a material verification management module and a remainder management module. The first internal communication module executes data communication with other modules in the production line management system and the placement machine in the production line. The placement machine has a second internal communication module that realizes communication connection with the production line management system; the external communication module executes data communication with other modules in the production line management system and a manufacturing execution system outside the production line; the material strip splicing management module parses the information obtained from the first internal communication module and processes the parsed material strip splicing event information Management is performed, and at the same time, the material verification management module is notified when a material tape splicing event is determined; the material verification management module obtains the material verification information after receiving the material tape splicing event notification, and sends it to the manufacturing execution system through the external communication module to implement material verification, and at the same time controls the next action of the object equipment according to the feedback material verification result, when the verification is OK, continues production and notifies the remainder management module, and when the verification is NG, notifies the placement machine to stop production and alarms to display corresponding information; the remainder management module obtains the material remainder management information after receiving the verification OK notification, and sends it to the manufacturing execution system through the external communication module to notify the material remainder update management; The manufacturing execution system includes a material verification function module and a remainder management function module. After receiving the material verification notification, the material verification function module will compare and check the received information with the object production program material information managed in the system, and feed back the verification result to the corresponding production line management system; after receiving the material remainder update notification, the remainder management function module will calculate and update the remainder information of the object material managed in the system based on the received information.

[0014] Preferably, it also includes a label printing system, which includes a PDA and a label printing device, which includes an information reading module and a label information editing module, the PDA is used to scan the barcodes on the feeder and the material tray for splicing the material strip, the information reading module obtains the address information of the splicing object feeder and the material information in the material tray for splicing the material strip from the barcode, the address information includes the placement machine number, workbench, trolley number and feeder position, etc., the material information includes the material name, ID, type and quantity, etc.; the label editing module can automatically edit the information obtained by the information reading module according to the rules defined by the user's needs and send the edited information to the label printing device; after receiving the information, the label printing device automatically prints the electronic label for affixing to the splicing material strip supplied by the object feeder.

[0015] Compared with the prior art, the advantages of the present invention are: The method and system for detecting material splicing, checking materials, and managing the remainder of the material strip of the present invention can accurately detect material splicing events during the production process, and can also automatically check material information and automatically update the management of material remainders. This reduces the problem of false detection caused by the use of photoelectric sensors for detecting material splicing in the prior art, and greatly improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the configuration of the system for strip splicing detection, material verification and remainder management according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the top view of the structure of one of the placement machines of the system for strip splicing detection, material verification and remainder management according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the side view structure of part of a chip mounter of a system for detecting the splicing of strips, checking materials, and managing the remainder of the material according to an embodiment of the present invention; Figure 4 It is a functional architecture diagram of a system for strip splicing detection, material verification, and remainder management according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the process of electronic label printing and pasting of the method and system for detecting the splicing of material strips, checking materials, and managing the remainder according to an embodiment of the present invention; Figure 6 The figure is a flow chart of a method for detecting material splicing, verifying materials, and managing remainders according to an embodiment of the present invention.

[0017] Among them: 10. Production line management system; 11. First internal communication module; 12. External communication module; 13. Material tape splicing management module; 14. Material verification management module; 15. Remainder management module; 20. Manufacturing execution system; 21. Material verification function module; 22. Remainder management function module; 30. PDA; 31. Information reading module; 32. Label information editing module; 40. Label printing equipment; 41. Label printing module; 50. Placement machine; 51. Trolley; 52. Feeder; 53. Placement head; 54. Second internal communication module; 60. Wireless router; 70. Electronic label system; 71. Electronic label; 72. Label reader; 80. Material tape. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0019] See also Figures 1 to 4 The system for detecting material splicing, checking materials and managing remainder provided in the embodiment of the present invention specifically includes a manufacturing execution system 20, several production line management systems 10, an electronic label system 71 and a label printing system. Figure 1 As shown, several production line management systems 10 in the embodiment of the present invention correspond to the number of production lines in the factory workshop. For example, there are N (N ≥ 1) production lines in the workshop, and the number of production line management systems 10 is also N. The manufacturing execution system 20 is arranged outside the production line and is connected to the several production line management systems 10. For each production line, each production line is provided with at least one placement machine 50, and all placement machines 50 in the production line are connected to the production line management system 10 corresponding to the production line. For example, as Figure 1 As shown, each production line is provided with x (x ≥ 1) placement machines 50, each placement machine 50 has a different number (corresponding to the subsequent equipment number), such as M1, M2, M3...Mx. And each placement machine 50 has at least one trolley 51. For example, Figure 2 As shown, each SMT machine 50 has a workbench at both ends (not shown, each workbench also has an ID number or serial number), each workbench can have one or more trolleys 51 according to the size of the equipment, and each trolley 51 also has a different number (corresponding to the subsequent trolley 51 number), which will not be described or limited in detail. For each trolley 51, at least one feeder is provided on it, and each feeder is provided with multiple feed racks 52. For example, Figure 2As shown, each trolley 51 is provided with eight feeding racks 52, that is, each feeding rack 52 corresponds to a station (corresponding to the subsequent feeding rack 52 station), which is not described or limited in detail. Each feeder is provided with a barcode (not shown) recording the address information of the feeder (the address information includes the equipment number corresponding to the feeder, the trolley 51 number and the feeding rack 52 station). The splicing tape 80 material tray on each feeding rack 52 is also provided with a barcode (not shown), which records the material information (including the material name, type and quantity).

[0020] It should be noted that, in the embodiment of the present invention, there is a communication connection between the production line management system 10 and the placement machine 50 in the production line, such as a wireless signal connection (wifi wireless router 60), and an internal communication module is built into the placement machine 50 (for the convenience of description and distinction, the internal communication module in the placement machine 50 is described as a second internal communication module 54), and the placement machine 50 is communicated with the corresponding production line management system 10 through the second internal communication module 54.

[0021] More specifically, for any production line management system 10, if Figure 4 As shown, it includes five functional modules, namely, the first internal communication module 11, the external communication module 12, the material strip 80 splicing management module 13, the material verification management module 14 and the remainder management module 15. The data communication between the external communication module 12, the material strip 80 splicing management module 13, the material verification management module 14 and the remainder management module 15 is realized through the first internal communication module 11, and the data communication between the four modules and the placement machine 50 in the production line is also realized through the first internal communication module 11, that is, the first internal communication module 11 executes data communication between other functional modules (that is, the above-mentioned external communication module 12, the material strip 80 splicing management module 13, the material verification management module 14 and the remainder management module 15) and the placement machine 50 in the production line. The external communication module 12 executes data communication with other functional modules (the first internal communication module 11, the material strip 80 splicing management module 13, the material verification management module 14, the remainder management module 15) and the manufacturing execution system 20 outside the production line. The first internal communication module 11, the external communication module 12 and the second internal communication module 54 are all conventional wireless communication modules, and their specific structures and working principles are not described or limited.

[0022] The material strip 80 splicing management module 13 can analyze the information obtained from the first internal communication module 11, and manage the analyzed material strip splicing event information (for example, including the time of occurrence of the splicing event, the equipment number, the trolley 51 number and the feeder position, that is, when, which placement machine 50, which trolley 51 and which feeder, of course, optionally, the material strip splicing event information can also include, for example, which placement head, which workbench, feeder rack serial number, splicing material ID, substrate ID, material remainder, etc.). At the same time, when it is determined that the material strip 80 splicing event is detected, the material verification management module 14 is notified through the first internal communication module 11, that is, a material verification notification is issued.

[0023] After receiving the notification of the splicing event of the material strip 80, the material verification management module 14 obtains the information for material verification (preferably, including the target equipment, i.e., the placement machine 50, the trolley 51, the feeder address, the material information before and after splicing, i.e., which equipment, which trolley 51, which feeder, and the material name and quantity information of the spliced ​​material strip 80, and of course, it can also include, for example, production batch ID, material ID, remainder, substitute, etc.), and sends the information to the manufacturing execution system 20 through the external communication module 12 to implement material verification. After receiving the material verification information, the manufacturing execution system 20 will perform material verification and feedback the verification results to the production line management system 10. The material verification management module 14 controls the next step of the target equipment according to the feedback of the material verification results. There are two situations for the material verification results, one is verification OK, that is, the verification is successful, and it is consistent with the material information of the object production program stored and managed in the manufacturing system; the other is verification NG, that is, the verification is unsuccessful, the information is inconsistent, that is, the spliced ​​material strip 80 is inconsistent with the components to be mounted. When the check is OK, production will continue, and the material check management module 14 will send a check success notification to the remainder management module 15 through the first internal communication module 11. When the check is NG, the material check management module 14 sends a notification to the corresponding placement machine 50 through the first internal communication module 11, so that the placement machine 50 stops production and alarms to display error or unsuccessful information, so that the operator can understand the specific reason for stopping production.

[0024] After receiving the verification success notification sent by the material verification management module 14 after the verification is OK, the remainder management module 15 obtains the material remainder management information (including the target device, the trolley 51, the feeder address, the name and quantity of the splicing material, and may also include, for example, the workbench, the production batch ID, the splicing material ID, etc.), and sends the material remainder management information to the manufacturing execution system 20 through the external communication module 12 to notify the material remainder update management. In other words, after receiving the material verification success notification, the remainder management module 15 will obtain the number of the placement machine 50 corresponding to the splicing of the material strip 80, the number of the trolley 51, the position of the feeder, and the name and quantity of the splicing material strip 80, and then send this information to the manufacturing execution system 20 to notify the material remainder update management, that is, send the material remainder update notification to the manufacturing execution system 20.

[0025] For the manufacturing execution system 20, if Figure 4 As shown, it includes two functional modules, one is a material checking functional module 21, and the other is a remainder management functional module 22.

[0026] Among them, after receiving the material verification notification sent by the production line management system 10, the material verification function module 21 will compare and check the received information with the object production program material information managed in the system, and feedback the verification result to the production line management system 10. The material verification management module 14 of the production line management system 10 will execute the next action of the object equipment according to the feedback result, that is, whether to continue production or stop production.

[0027] After the remainder management function module 22 receives the material remainder update notification sent by the forecast management module, it queries the remainder information of the existing object material based on the key information that can locate the unique object in the received information (such as product batch, equipment number, trolley 51 number, feeder rack 52 position and material name), and adds the material remainder information obtained with the received quantity information of the spliced ​​material to update the remainder information of the object material managed in the system, so that the operator can immediately grasp the material remainder in production and replenish the material in time when the material remainder is close to zero, thereby ensuring the continuity of production and reducing downtime in production.

[0028] The electronic tag 71 system 70 includes an electronic tag 71 and a tag reader 72. The tag reader 72 can read the information stored in the electronic tag 71, and transmit the read tag information to the production line management system 10 through the second internal communication module 54 in the placement machine 50, so that the material tape 80 splicing management module 13 of the production line management system 10 parses the information to parse out the material tape 80 splicing event information for management. In some preferred embodiments of the present invention, the electronic tag 71 is an NFC or RFID tag that can store specified information. Correspondingly, the tag reader 72 is an NFC or RFID reader. For the tag reader 72, if Figure 2 As shown, it is a top view of the structure of a placement machine 50, wherein a trolley 51 is respectively provided at the upper and lower ends of the placement machine 50, each trolley 51 corresponds to one or more feeders, and each feeder is provided with eight feed racks 52 spaced side by side in the left-right direction, and each feed rack 52 corresponds to a splicing tape 80, and a placement head 53 is movably arranged on the placement machine 50 along the XY axis direction and is located above the feeder, and a tag reader 72 such as an NFC or RFID tag reader 72 is arranged on the placement head 53, that is, located above the feed rack 52, when the splicing tape 80 on any feed rack 52 will gradually approach the tag reader 72 as the feeder feeds, that is, the electronic tag 71 on the splicing tape 80 will enter the readable distance of the tag reader 72 and the tag information stored therein will be automatically read by the tag reader 72. As an alternative embodiment, the label reader 72 can also be set at other positions of the patch machine 50, and it can only ensure that the information of the electronic label 71 on the splicing material belt 80 in the feeding process can be read at the appropriate position. The specific position is selected and designed according to actual needs, such as Figure 3 The housing of the placement machine 50 above the feed rack 52 is shown facing the spliced ​​material strip 80 on the feeder.

[0029] For the label printing system, it includes a PDA 30 (Personal Digital Assistant) and a label printing device 40 for the label information reading module 31 and the label information editing module 32. It should be noted that the embodiment of the present invention is aimed at the manual splicing of the material strip 80. When the splicing material strip 80 is automatically spliced ​​by a robot such as an industrial manipulator, the corresponding function of the PDA 30 can be integrated into the control system of the robot. More specifically, the operator uses the PDA 30 to scan the barcodes on the feeder and the tray (each feeder and tray has a specific barcode for distinction, such as which SMT machine 50, which trolley 51 and which station the feeder rack 52 is located at), and then the label information reading module 31 can obtain the address information of the splicing object feeder (that is, the number of the SMT machine 50, the number of the trolley 51 and the station of the feeder) and the material information in the splicing tray (material name, type and quantity) from the barcode information. The label information editing module 32 is used for the operator to automatically edit the information obtained by the information reading module 31 according to the rules defined by the operator according to his own needs (due to the inconsistency of different users' needs, it is not described in detail here. For example, the order of each information item is set, and identification information for identifying the factory and product is added), and the edited information is transmitted to the label printing device 40 after the editing is completed.

[0030] The label printing device 40 has an electronic label 71 printing module 41 (NFC / RFID label printing module 41), which automatically prints out an electronic label 71 (NFC / RFID label) containing label information of a uniquely locatable object to be attached to the splicing tape 80 after receiving information sent by the PDA 30.

[0031] The method for detecting the splicing of the strip 80, checking the materials, and managing the remainder of the strip according to the embodiment of the present invention is shown in FIG. Figure 5 and Figure 6 , including the following steps: After the material strips 80 are spliced, an electronic label 71 is attached to the spliced ​​material strips 80. The electronic label 71 includes the address information of the feeder corresponding to the spliced ​​material strips 80, the position of the feed rack 52, and the material information and quantity information of the spliced ​​material strips 80. During the feeding process of the feeder, the information of the electronic tag 71 is read by the tag reader 72 and the read information (the information includes the tag information on the electronic tag 71 and the reading time, which corresponds to the time when the material belt 80 is spliced) is sent to the production line management system 10 of the corresponding production line; The production line management system 10 determines whether a splicing event of the material strip 80 occurs according to the received information. If a splicing event of the material strip 80 occurs, the production line management system 10 sends the information to the manufacturing execution system 20 outside the production line to notify the material verification; After receiving the material verification notification, the manufacturing execution system 20 verifies and compares the received information with the target production process material information, and feeds back the verification result to the corresponding production line management system 10; The production line management system 10 controls the operation of the target equipment according to the material verification result fed back by the manufacturing execution system 20. If the verification is OK, the production continues, and the relevant information is sent to the manufacturing execution system 20 to notify the update of the remaining material quantity; Upon receiving the material remaining quantity update notification, the manufacturing execution system 20 updates the remaining quantity information of the target material managed in the system.

[0032] More specifically, the operation flow of the material strip 80 splicing detection, material verification, and remainder management system according to the embodiment of the present invention is as follows: After the operator or robot splices the material strip 80, the operator or robot scans the barcode on the object feeder and the material strip 80 splicing tray, prints out the electronic label 71 that can uniquely locate the label information of the object, and affixes it to the spliced ​​material strip 80. Figure 5 It should be noted that the scanning order does not affect the label information of the electronic label 71 finally pasted on the splicing tape 80, that is, it has nothing to do with the scanning order. Regardless of whether the barcode on the feeder or the barcode on the splicing material tray of the tape 80 is scanned first, the label information of the electronic label 71 finally pasted on the splicing tape 80 will not change.

[0033] During the process of mounting components on the SMT machine 50, as the feeder continuously feeds materials, the electronic tag 71 at the joint of the material strip 80 approaches and reaches the readable distance of the tag reader 72. The tag reader 72 will automatically trigger the reading of the tag information on the electronic tag 71 and pass the tag information to the corresponding production line management system 10.

[0034] The material tape 80 splicing management module 13 of the production line management system 10 analyzes the received information and determines whether a material tape 80 splicing event has occurred. As long as the label reader 72 reads the electronic label 71 attached to the spliced ​​material tape 80, it can be determined that a material tape splicing has occurred, because the electronic label 71 is attached to the spliced ​​material tape. When a material tape 80 splicing event is detected, the relevant information is sent to the manufacturing execution system 20 to notify the material verification. When no material tape 80 splicing event is detected, such as Figure 6 As shown, the feeder feeds the materials, and the placement head 53 picks up the components for placement, without the need to perform subsequent material tape splicing management, material verification, and remainder update management.

[0035] After the manufacturing execution system 20 receives the material verification notification, the material verification function module 21 verifies and compares the received information with the object production process material information managed in the system, and feeds back the verification result (verification OK or verification NG) to the corresponding production line management system 10.

[0036] The production line management system 10 controls the operation of the target equipment according to the material verification results fed back by the manufacturing execution system 20. Specifically, when the verification is OK, production continues, and the remainder management module 15 sends relevant information to the manufacturing execution system 20 to notify the update of the material remainder; when the verification is NG, the placement machine 50 in the corresponding production line is notified to stop production and alarm to display the corresponding information, so that the operator or robot can understand the production problem in time and take timely countermeasures.

[0037] After the manufacturing execution system 20 receives the material remainder update notification, the remainder management function module 22 queries the remainder information of the existing object material based on the key information that can locate the unique object in the received information (for example, product batch, equipment number, feed rack 52 station, material name), and updates the remainder information of the object material managed in the system after adding it to the received quantity information of the spliced ​​material.

[0038] It should be noted that the material in the embodiment of the present invention refers to the components in the material tray for splicing the material strip 80 .

[0039] The system and method of the embodiment of the present invention can accurately detect the splicing event of the material strip during the production process, and realize automatic verification of material information and automatic update management of the remaining material quantity. The problem of false detection caused by the use of photoelectric sensors for splicing detection of material strips in the prior art is reduced, and the efficiency is greatly improved.

[0040] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. The method for detecting the splicing of material strips, checking the materials and managing the remainder is characterized by: The following steps are involved: After the material strips are spliced, an electronic label is affixed to the spliced ​​material strips, and the electronic label includes the address information of the feeder corresponding to the spliced ​​material strips, the material information and the quantity information of the spliced ​​material strips; During the feeding process of the feeder, the information of the electronic tag is read by the tag reader and the read information is sent to the production line management system of the corresponding production line; The production line management system determines whether a material strip splicing event occurs based on the received information. If a material strip splicing event occurs, the production line management system sends the information to a manufacturing execution system outside the production line to notify material verification; After receiving the material verification notification, the manufacturing execution system verifies and compares the received information with the material information of the target production process, and feeds back the verification result to the corresponding production line management system; The production line management system controls the operation of the target equipment according to the material verification result fed back by the manufacturing execution system. If the verification is OK, the production continues, and the relevant information is sent to the manufacturing execution system to notify the update of the remaining material quantity; After receiving the material remaining quantity update notification, the manufacturing execution system updates the remaining quantity information of the target material managed in the system.

2. The method according to claim 1, characterized in that: The production line management system includes a first internal communication module, an external communication module, and a material splicing management module; The first internal communication module performs data communication with other modules in the system and the placement machines in the production line, and the external communication module performs data communication with other modules in the system and the manufacturing execution system; In the step where the production line management system determines whether a material strip splicing event occurs based on the received information, the material splicing management module parses the information of the spliced ​​material strip obtained from the first internal communication module and manages the parsed material strip splicing event information, wherein the material strip splicing event information includes event time, placement machine number, workbench, trolley number, feeder rack position, and splicing material information.

3. The method according to claim 2, characterized in that The production line management module also includes a material verification management module; In the step where the production line management system sends information to the manufacturing execution system outside the production line to notify material verification, the material splicing management module notifies the material verification management module of the material tape splicing event information. After receiving the material tape splicing event notification, the material verification management module obtains the material verification information and sends the information to the manufacturing execution system through the external communication module to implement material verification, and controls the next action of the target equipment according to the feedback of the material verification result; The material verification information includes the target equipment, workbench, trolley, feeder address and splicing material information, and production batch ID.

4. The method according to claim 3, characterized in that The production line management system also includes a remainder management module. If the verification is OK, the production continues, and the remainder management module is notified; After receiving the successful verification notification from the material verification management module, the remainder management module obtains the material remainder management information, and sends this information to the manufacturing execution system through the external communication module to notify the material remainder update management; the material remainder management information includes the object equipment, workbench, trolley, feeder address, production batch ID and splicing material name and quantity.

5. The method according to any one of claims 1 to 4, characterized in that: In the step where the production line management system controls the operation of the target equipment according to the material verification result fed back by the manufacturing execution system, if the verification is NG, the target equipment is notified to stop production and an alarm is displayed to display corresponding information.

6. The method according to claim 2, characterized in that The manufacturing execution system includes a material checking function module and a remainder management function module; After receiving the material verification notification from the production line management system, the material verification function module verifies and compares the received information with the object production process material information managed in the system, and feeds back the verification and comparison results to the production line management system, while saving and managing the verification history; In the step of updating the balance information of the object material managed in the system after receiving the material balance update notification, the balance management function module updates the balance information of the object material managed in the system after receiving the material balance update notification and calculating according to the received information.

7. The method according to claim 2, characterized in that The chip placement machine is provided with a second internal communication module, the label reader is arranged on the chip placement machine and transmits the label information to the production line management system through the second internal communication module after receiving the information of the read electronic label.

8. The method according to claim 1, characterized in that In the material strip splicing step, the material strip is spliced ​​manually or by robot operation; When the material strips are spliced ​​by robot operation, a functional module for reading and editing label information is built into the control system of the robot.

9. The system for material strip splicing detection, material verification and remainder management is characterized by: It includes several production line management systems, a manufacturing execution system and an electronic label system. The several production line management systems correspond to the number of production lines in the workshop and any production line management system corresponds to one production line. Any production line has at least one placement machine. The manufacturing execution system is arranged outside the production line and is in communication connection with the several production line management systems. Any placement machine corresponds to multiple feeders. An electronic label with specified information is arranged on the splicing tape supplied by any feeder. The electronic label system includes the electronic label and a label reader for reading the information in the electronic label and transmitting the information to the corresponding production line management system. Any of the production line management systems has a first internal communication module, an external communication module, a material strip splicing management module, a material verification management module and a remainder management module. The first internal communication module executes data communication with other modules in the production line management system and the placement machine in the production line. The placement machine has a second internal communication module that realizes communication connection with the production line management system; the external communication module executes data communication with other modules in the production line management system and a manufacturing execution system outside the production line; the material strip splicing management module parses the information obtained from the first internal communication module and processes the parsed material strip splicing event information Management is performed, and at the same time, the material verification management module is notified when a material tape splicing event is determined; the material verification management module obtains the material verification information after receiving the material tape splicing event notification, and sends it to the manufacturing execution system through the external communication module to implement material verification, and at the same time controls the next action of the object equipment according to the feedback material verification result, when the verification is OK, continues production and notifies the remainder management module, and when the verification is NG, notifies the placement machine to stop production and alarms to display corresponding information; the remainder management module obtains the material remainder management information after receiving the verification OK notification, and sends it to the manufacturing execution system through the external communication module to notify the material remainder update management; The manufacturing execution system includes a material verification function module and a remainder management function module. After receiving the material verification notification, the material verification function module verifies and compares the received information with the object production process material information managed in the system, and feeds back the verification result to the corresponding production line management system; After receiving the update notification of the material remainder, the remainder management function module calculates and updates the remainder information of the object material managed in the system according to the received information.

10. The system according to claim 9, characterized in that It also includes a label printing system, which includes a PDA and a label printing device, which includes an information reading module and a label information editing module, the PDA is used to scan the barcodes on the feeder and the material tray for splicing the material strip, the information reading module obtains the address information of the splicing object feeder and the material information in the material tray for splicing the material strip from the barcode, the address information includes the placement machine number, workbench, trolley number and feeder position, the material information includes the material name, ID, type and quantity; the label editing module can automatically edit the information obtained by the information reading module according to the rules defined by the user's needs and send the edited information to the label printing device; after receiving the information, the label printing device automatically prints the electronic label for affixing to the splicing material strip supplied by the object feeder.

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