Automatic glue amount CPK / CMK acquisition equipment

Abstract

The invention provides a glue amount CPK / CMK automatic acquisition device and method, CPK glue amount weighing of a workshop and CMK glue amount weighing of the device are realized through switching of a CPK mode and a CMK mode, in the weighing process, a manipulator places glue on a weighing platform, a weighing sensor on a weighing platform obtains the glue amount, and glue amount data are sent to a PLC control unit; and the PLC control unit sends the data to the touch screen and the EMS glue weighing platform of the server for display, and meanwhile, the voice module carries out voice broadcast. According to the method, the gel amount CPK / CMK test is standardized in the aspect of quality, the process is clear, and management is convenient; and issuing a parameter range standard through a process management room, comparing the actual value of the on-site glue amount, and carrying out alarm pushing when the range is out of range.

Description

Technical Field

[0001] The present invention relates to the technical field of glue coating equipment, and in particular to a glue quantity CPK / CMK automatic collection device. Background Art

[0002] The gluing process is widely used in the product manufacturing process and plays an important role. In the automotive lighting industry, the stability of the glue amount directly determines the integrity of the combination of the lampshade and the shell, and plays a decisive role in the sealing of the vehicle assembly lamp. At present, the factory uses the process capability index CPK (Process Capability Index), a quality control statistical indicator used to measure the stability and capability of the production process or process, based on existing quality control technology. Employees in this process are required to independently test the glue output every two hours (comparing the weight of the shell before and after gluing) and manually record it in a paper data sheet for quality personnel to review, thereby achieving the purpose of control. The machine capability index CMK (Machine Capability Index) is a quality control statistical indicator that measures the stability of equipment operation. It is required to be tested every six months. Equipment personnel are required to be present to manually teach the robot to place glue and weigh it. The personnel record the paper data once each time the glue is placed.

[0003] Judging from the above-mentioned existing glue quantity quality control, this type of method currently involves problems such as cumbersome processes, lax procedures, waste of resources and data authenticity. In terms of quality, it is not conducive to the purpose of on-site glue quantity stability control.

[0004] In view of this, it is necessary to improve the existing glue quantity control to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies in the prior art, the present invention provides a device for automatically collecting the amount of glue CPK / CMK.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a glue quantity CPK / CMK automatic collection device, including a server, a PLC control unit, a touch screen, a weighing instrument, a weighing table, a voice module, a mobile box and a manipulator, wherein:

[0007] The server is equipped with a SCADA automatic data collection system and an MES system, and the MES system runs an EMS glue weighing platform;

[0008] The PLC control unit is arranged inside the mobile box and communicates with the SCADA automatic data acquisition system in the server via Ethernet. The SCADA automatic data acquisition system collects the glue quantity weighing data output by the PLC control unit and sends the glue quantity weighing data to the EMS glue quantity weighing platform for display. The glue quantity weighing data is also stored in the database of the server;

[0009] The touch screen is arranged on the side of the mobile box and communicates with the PLC control unit via the RS485 serial port to display the glue weighing data and set the weighing parameters;

[0010] The weighing table is set on the top of the mobile box and is equipped with a weighing sensor. The weighing sensor communicates with the PLC control unit through the RS485 serial port and is used to weigh the CPK / CMK glue amount and send the glue weighing data to the PLC control unit.

[0011] The voice module is arranged inside the mobile box and is connected to the PLC control unit signal through a line. The voice module is used for voice broadcasting;

[0012] The manipulator is used to place glue on the weighing table and exchange signals with the PLC control unit, and the PLC control unit coordinates the continuity of the interaction between the weighing table and the manipulator's action signal points.

[0013] A method for automatically collecting glue quantity CPK / CMK, applied to the aforementioned automatic glue quantity CPK / CMK collection equipment, includes a workshop CPK glue quantity weighing process and an equipment CMK glue quantity weighing process. During production on the production line, the workshop CPK glue quantity weighing is required to be tested every two hours, and the equipment CMK glue quantity weighing is required to be tested every six months.

[0014] The workshop CPK glue weighing process includes the following steps:

[0015] A1: Set the workshop CPK glue weighing interval to 2 hours on the touch screen, and set the glue discharge time, upper limit alarm glue quantity, and lower limit alarm glue quantity according to the current product test requirements. When the PLC control unit monitors that the workshop CPK glue weighing interval has expired, the PLC control unit sends a broadcast signal to the voice module, and the voice module issues a voice broadcast to prompt; different products have different glue discharge amounts during normal glue discharge, so the corresponding glue discharge time during testing is also different. The glue discharge amount used in the test uses the product's current discharge amount as the discharge amount during the test.

[0016] A2: The operator of the gluing process adjusts the test item on the touch screen to "CPK mode" and presses the "test start" button to send a signal to the PLC control unit to start the test;

[0017] A3: The PLC control unit interacts with the robot signal based on the received test items and the test start signal. The robot moves to the top of the weighing table according to the running trajectory. When it reaches the position, it sends an in-position signal to the PLC control unit.

[0018] A4: After the PLC control unit receives the robot's arrival signal, it releases glue according to the glue discharge time set in "CPK mode";

[0019] A5: After the glue is placed, the robot returns to the origin;

[0020] A6: The weighing sensor detects the weight of the glue on the weighing table and sends the glue weighing data to the PLC control unit. The PLC control unit sends the glue weighing data to the touch screen via the RS485 serial port and then proceeds to step A7. At the same time, the glue weighing data is sent to the server via Ethernet and then proceeds to step A8.

[0021] A7: After the glue weighing data is sent to the touch screen, the current weighing result is directly displayed. At the same time, the current weighing result is compared with the set upper and lower alarm glue amounts to determine whether the current glue amount is within the upper and lower alarm glue amounts. If the current weighing result exceeds the range, the PLC control unit will send an alarm signal to the voice module, indicating that the current glue amount exceeds the standard range;

[0022] A8: After the glue weighing data is sent to the server, it is collected by the SCADA automatic data collection system in the server. The SCADA automatic data collection system collects the glue weighing data from the PLC control unit and sends it to the EMS glue weighing platform for display. The collected data is then stored in the server database.

[0023] The CMK glue weighing process includes the following steps:

[0024] B1: When the production line has been in normal production for half a year, the operator switches the test item to "CMK mode" on the touch screen. After receiving the mode switching signal, the PLC control unit controls the voice module to issue a voice broadcast as a prompt;

[0025] B2: The operator of the gluing process presses the "test start" button on the touch screen to send a signal to the PLC control unit to start the test;

[0026] B3: The PLC control unit interacts with the robot signal based on the received test items and the test start signal. The robot moves to the top of the weighing table according to the running trajectory. When it reaches the position, it sends an in-position signal to the PLC control unit.

[0027] B4: After the PLC control unit receives the robot's arrival signal, it releases glue according to the glue dispensing time and glue dispensing group number set in "CMK mode";

[0028] B5: After the glue is placed, the robot returns to the origin;

[0029] B6: The weighing sensor detects the weight of the glue on the weighing table and sends the glue weighing data to the PLC control unit. The PLC control unit sends the glue weighing data to the touch screen via the RS485 serial port and proceeds to step B7. At the same time, the glue weighing data is sent to the server via Ethernet and proceeds to step B8.

[0030] B7: After the glue quantity weighing data is sent to the touch screen, the current weighing result is directly displayed. When all the set glue discharging groups have completed glue discharging, the average glue output value is calculated and compared with the set upper and lower alarm glue quantities to determine whether the current glue quantity is within the upper and lower alarm glue quantities. If the current weighing result exceeds the range, the PLC control unit will send an alarm signal to the voice module, indicating that the current glue quantity exceeds the standard range.

[0031] B8: After the glue weighing data is sent to the server, it is collected by the SCADA automatic acquisition system in the server. The SCADA automatic acquisition system collects the glue weighing data of the PLC control unit and sends it to the EMS glue weighing platform for display, and stores the collected data in the server's database.

[0032] Furthermore, the glue weighing data in step A6 and step B6 includes the current weight, the number of qualified products, and the number of unqualified products.

[0033] Furthermore, the glue dispensing time under the "CPK mode" in step A1 is the time of switching the glue gun on and off for applying glue to the product before entering the "CPK mode", and glue is dispensed once every 2 hours.

[0034] Furthermore, before starting the test in step B1, it is necessary to set the glue dispensing time, glue dispensing group number, upper limit alarm glue quantity and lower limit alarm glue quantity under the "CMK mode".

[0035] Furthermore, the glue discharging time is 10s, and the number of glue discharging groups is 50 groups.

[0036] The beneficial effects of the present invention are:

[0037] (1) Through this invention, in terms of quality, the glue quantity CPK / CMK test is standardized, the process is clear, and it is easy to manage;

[0038] (2) From manual weighing records to automatic weighing records, replacing the existing manual weighing through signal point interaction on the equipment hardware side and robot linkage is an inevitable trend in the current digital transformation;

[0039] (3) After the on-site feedback data is collected, it is automatically collected by SCADA and transmitted back to the database and viewed on the "cloud", which facilitates data traceability, ensures the integrity of the process, and standardizes and rationalizes the process;

[0040] (4) The parameter range standards are issued by the process management room, compared with the actual value of the glue quantity on site, and an alarm is pushed if it exceeds the range. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below with reference to the accompanying drawings and examples.

[0042] Figure 1 This is a functional block diagram of the automatic glue quantity CPK / CMK collection device of the present invention.

[0043] Figure 2 This is a partial wiring diagram of the PLC control unit.

[0044] Figure 3 This is a partial wiring diagram of the PLC control unit.

[0045] Figure 4 It is a flowchart of the automatic collection method of glue quantity CPK / CMK.

[0046] Figure 5 It is a schematic diagram of the touch screen interface display. DETAILED DESCRIPTION

[0047] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0048] like Figure 1-Figure 3As shown, a glue quantity CPK / CMK automatic collection device of the present invention includes a server, a PLC control unit, a touch screen, a weighing meter, a weighing table, a voice module, a mobile box and a manipulator, wherein the PLC control unit, the weighing meter and the voice module are arranged inside the mobile box, and the touch screen and the weighing table are arranged on the mobile box; the server is equipped with a SCADA automatic collection system and an MES system, and the MES system runs an EMS glue quantity weighing platform. The server can realize "cloud" storage and viewing, which is convenient for data traceability, and ensures the integrity of the process and the standardization and rationality of the process; the PLC control unit, as the CPU of the entire device, is arranged inside the mobile box and communicates with the SCADA automatic collection system in the server through Ethernet. In this embodiment, it is preferred that the PLC control unit adopts the DVPES2 Delta PLC module; the SCADA automatic collection system collects the glue output by the PLC control unit The system measures the glue weighing data and sends it to the EMS glue weighing platform for display. The glue weighing data is also stored in the server's database. The touch screen is located on the side of the mobile box and communicates with the PLC control unit via an RS485 serial port. It is used to display the glue weighing data and set weighing parameters. In this embodiment, a 10-inch touch screen is preferably used. The weighing table is located on the top of the mobile box and is equipped with a weighing sensor. The weighing sensor communicates with the PLC control unit via an RS485 serial port. It is used to weigh the CPK / CMK glue and send the glue weighing data to the PLC control unit. The voice module is located inside the mobile box and is connected to the PLC control unit via a signal line. The voice module is used for voice broadcasting. The robot is used to place glue on the weighing table and exchange signals with the PLC control unit. The PLC control unit coordinates the consistency of the interaction between the weighing table and the robot's action signal points. In this embodiment, the robot's glue placement trajectory is programmed using a teach pendant. Relays are also provided on the connection lines between the PLC control unit and other units to facilitate the exchange of in-position signals.

[0049] The MES system (Manufacturing Execution System) mentioned above is the key hub connecting the enterprise planning level and the production site. It is mainly responsible for monitoring and guiding the execution of the production process. Through automation and information technology, it optimizes the production process, improves production efficiency, and provides a basis for scientific decision-making for the enterprise management.

[0050] EMS (Electronic Manufacturing Services) refers to electronic manufacturing services.

[0051] A SCADA system (Supervisory Control and Data Acquisition) is a computer-based DCS and power automation monitoring system. It has a wide range of applications, including data acquisition and supervisory control, as well as process control, in fields such as power, metallurgy, petroleum, chemical engineering, gas, and railways. In this embodiment, the SCADA system serves as a communication tool between the PLC control unit and the server. It is responsible for communicating with the equipment and collecting data from the PLC control unit to present it on the MES platform.

[0052] like Figure 4 and Figure 5 As shown, a glue quantity CPK / CMK automatic collection method is applied to the above-mentioned glue quantity CPK / CMK automatic collection equipment, and also includes a workshop CPK glue quantity weighing process and an equipment CMK glue quantity weighing process. During production on the production line, the workshop CPK glue quantity weighing is required to be tested every 2 hours, and the equipment CMK glue quantity weighing is required to be tested every six months.

[0053] The workshop CPK glue weighing process includes the following steps:

[0054] A1: Set the workshop CPK glue weighing interval to 2 hours on the touch screen, and set the glue discharge time, upper and lower alarm glue amounts according to the current product test requirements. When the PLC control unit detects that the workshop CPK glue weighing interval has expired, the PLC control unit sends a broadcast signal to the voice module, which issues a voice announcement as a prompt. Different products have different glue discharge amounts during normal glue discharge, so the corresponding glue discharge time during the test is also different. The glue discharge amount used for the test is the current glue discharge amount of the product as the test discharge amount. In this embodiment, the glue discharge time in "CPK mode" is the time it takes to turn on and off the glue gun for the last product glue application before entering "CPK mode", and glue is discharged every 2 hours.

[0055] A2: The operator of the gluing process adjusts the test item on the touch screen to "CPK mode" and presses the "test start" button to send a signal to the PLC control unit to start the test;

[0056] A3: The PLC control unit interacts with the robot signal based on the received test items and the test start signal. The robot moves to the top of the weighing table according to the running trajectory. When it reaches the position, it sends an in-position signal to the PLC control unit.

[0057] A4: After the PLC control unit receives the robot's arrival signal, it releases glue according to the glue discharge time set in "CPK mode";

[0058] A5: After the glue is placed, the robot returns to the origin;

[0059] A6: The weighing sensor detects the weight of the glue on the weighing table and sends the glue weighing data to the PLC control unit. The PLC control unit sends the glue weighing data to the touch screen via the RS485 serial port and then proceeds to step A7. At the same time, the glue weighing data is sent to the server via Ethernet and then proceeds to step A8.

[0060] A7: After the glue weighing data is sent to the touch screen, the current weighing result is directly displayed. At the same time, the current weighing result is compared with the set upper and lower alarm glue amounts to determine whether the current glue amount is within the upper and lower alarm glue amounts. If the current weighing result exceeds the range, the PLC control unit will send an alarm signal to the voice module, indicating that the current glue amount exceeds the standard range, which can prompt relevant personnel to handle it in time;

[0061] A8: After the glue weighing data is sent to the server, it is collected by the SCADA automatic data collection system in the server. The SCADA automatic data collection system collects the glue weighing data from the PLC control unit and sends it to the EMS glue weighing platform for display. The collected data is then stored in the server database.

[0062] The CMK glue weighing process includes the following steps:

[0063] B1: When the production line has been in normal production for half a year, the operator switches the test item to "CMK Mode" on the touch screen. In "CMK Mode", the operator sets the glue dispensing time, number of glue dispensing groups, upper and lower limit glue amount alarms. After receiving the mode switching signal, the PLC control unit controls the voice module to issue a voice broadcast as a prompt. In this embodiment, the glue dispensing time is 10 seconds, the number of glue dispensing groups is 50, and the upper and lower limit glue amount alarms are set according to the current product.

[0064] B2: The operator of the gluing process presses the "test start" button on the touch screen to send a signal to the PLC control unit to start the test;

[0065] B3: The PLC control unit interacts with the robot signal based on the received test items and the test start signal. The robot moves to the top of the weighing table according to the running trajectory. When it reaches the position, it sends an in-position signal to the PLC control unit.

[0066] B4: After the PLC control unit receives the robot's arrival signal, it releases glue according to the glue dispensing time and glue dispensing group number set in "CMK mode";

[0067] B5: After the glue is placed, the robot returns to the origin;

[0068] B6: The weighing sensor detects the weight of the glue on the weighing table and sends the glue weighing data to the PLC control unit. The PLC control unit sends the glue weighing data to the touch screen via the RS485 serial port and proceeds to step B7. At the same time, the glue weighing data is sent to the server via Ethernet and proceeds to step B8.

[0069] B7: After the glue weighing data is sent to the touch screen, the current weighing result is directly displayed. When all the set glue discharging groups have completed glue discharging, the average glue output value is calculated and compared with the set upper and lower alarm glue amounts to determine whether the current glue amount is within the upper and lower alarm glue amounts. If the current weighing result exceeds the range, the PLC control unit will send an alarm signal to the voice module, indicating that the current glue amount exceeds the standard range, which can prompt relevant personnel to handle it in time;

[0070] B8: After the glue weighing data is sent to the server, it is collected by the SCADA automatic acquisition system in the server. The SCADA automatic acquisition system collects the glue weighing data of the PLC control unit and sends it to the EMS glue weighing platform for display, and stores the collected data in the server's database.

[0071] The glue weighing data displayed on the touch screen in step A6 and step B6 includes the current weight, the number of qualified products, and the number of unqualified products.

[0072] This invention can measure data with high precision, collect and transmit data back to the platform for display, fully utilizing the diversified factors of the company's internal service platform and integrating multiple platforms (on-site, server, platform) together; while improving the quality of product processes, it reduces labor, improves efficiency, reduces resource waste, and meets the company's digital intelligent factory standards.

[0073] With the above-described preferred embodiments of the present invention as inspiration, and with reference to the above description, relevant personnel may make various changes and modifications without departing from the scope of the present invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic glue quantity CPK / CMK collection device, characterized by: It includes server, PLC control unit, touch screen, weighing instrument, weighing table, voice module, mobile box and manipulator, among which, The server is equipped with a SCADA automatic data collection system and an MES system, and the MES system runs an EMS glue weighing platform; The PLC control unit is arranged inside the mobile box and communicates with the SCADA automatic data acquisition system in the server via Ethernet. The SCADA automatic data acquisition system collects the glue quantity weighing data output by the PLC control unit and sends the glue quantity weighing data to the EMS glue quantity weighing platform for display. The glue quantity weighing data is also stored in the database of the server; The touch screen is arranged on the side of the mobile box and communicates with the PLC control unit via the RS485 serial port to display the glue weighing data and set the weighing parameters; The weighing table is set on the top of the mobile box and is equipped with a weighing sensor. The weighing sensor communicates with the PLC control unit through the RS485 serial port and is used to weigh the CPK / CMK glue amount and send the glue weighing data to the PLC control unit. The voice module is arranged inside the mobile box and is connected to the PLC control unit signal through a line. The voice module is used for voice broadcasting; The manipulator is used to place glue on the weighing table and exchange signals with the PLC control unit, and the PLC control unit coordinates the continuity of the interaction between the weighing table and the manipulator's action signal points.

2. A method for automatically collecting glue quantity CPK / CMK, characterized by: The automatic glue quantity CPK / CMK collection device applied to claim 1 further includes a workshop CPK glue quantity weighing process and an equipment CMK glue quantity weighing process, wherein, during production on the production line, the workshop CPK glue quantity weighing is required to be tested every 2 hours, and the equipment CMK glue quantity weighing is required to be tested every six months; The workshop CPK glue weighing process includes the following steps: A1: Set the workshop CPK glue weighing interval to 2 hours on the touch screen, and set the glue discharge time, upper limit alarm glue quantity, and lower limit alarm glue quantity according to the current product test requirements. When the PLC control unit monitors that the workshop CPK glue weighing interval has expired, the PLC control unit sends a broadcast signal to the voice module, and the voice module issues a voice broadcast as a prompt; A2: The operator of the gluing process adjusts the test item on the touch screen to "CPK mode" and presses the "test start" button to send a signal to the PLC control unit to start the test; A3: The PLC control unit interacts with the robot signal based on the received test items and the test start signal. The robot moves to the top of the weighing table according to the running trajectory. When it reaches the position, it sends an in-position signal to the PLC control unit. A4: After the PLC control unit receives the robot's arrival signal, it releases glue according to the glue discharge time set in "CPK mode"; A5: After the glue is placed, the robot returns to the origin; A6: The weighing sensor detects the weight of the glue on the weighing table and sends the glue weighing data to the PLC control unit. The PLC control unit sends the glue weighing data to the touch screen via the RS485 serial port and then proceeds to step A7. At the same time, the glue weighing data is sent to the server via Ethernet and then proceeds to step A8. A7: After the glue weighing data is sent to the touch screen, the current weighing result is directly displayed. At the same time, the current weighing result is compared with the set upper and lower alarm glue amounts to determine whether the current glue amount is within the upper and lower alarm glue amounts. If the current weighing result exceeds the range, the PLC control unit will send an alarm signal to the voice module, indicating that the current glue amount exceeds the standard range; A8: After the glue weighing data is sent to the server, it is collected by the SCADA automatic data collection system in the server. The SCADA automatic data collection system collects the glue weighing data from the PLC control unit and sends it to the EMS glue weighing platform for display. The collected data is then stored in the server database. The CMK glue weighing process includes the following steps: B1: When the production line has been in normal operation for half a year, the operator switches the test item to "CMK mode" on the touch screen. After receiving the mode switching signal, the PLC control unit controls the voice module to issue a voice broadcast as a prompt; B2: The operator of the gluing process presses the "test start" button on the touch screen to send a signal to the PLC control unit to start the test; B3: The PLC control unit interacts with the robot signal based on the received test items and the test start signal. The robot moves to the top of the weighing table according to the running trajectory. When it reaches the position, it sends an in-position signal to the PLC control unit. B4: After the PLC control unit receives the robot's arrival signal, it releases glue according to the glue dispensing time and glue dispensing group number set in "CMK mode"; B5: After the glue is placed, the robot returns to the origin; B6: The weighing sensor detects the weight of the glue on the weighing table and sends the glue weighing data to the PLC control unit. The PLC control unit sends the glue weighing data to the touch screen via the RS485 serial port and proceeds to step B7. At the same time, the glue weighing data is sent to the server via Ethernet and proceeds to step B8. B7: After the glue quantity weighing data is sent to the touch screen, the current weighing result is directly displayed. When all the set glue discharging groups have completed glue discharging, the average glue output value is calculated and compared with the set upper and lower alarm glue quantities to determine whether the current glue quantity is within the upper and lower alarm glue quantities. If the current weighing result exceeds the range, the PLC control unit will send an alarm signal to the voice module, indicating that the current glue quantity exceeds the standard range. B8: After the glue weighing data is sent to the server, it is collected by the SCADA automatic acquisition system in the server. The SCADA automatic acquisition system collects the glue weighing data of the PLC control unit and sends it to the EMS glue weighing platform for display, and stores the collected data in the server's database.

3. The method for automatically collecting the amount of glue CPK / CMK according to claim 2, characterized in that: The weighing results in step A6 and step B6 include the current weight, the number of qualified products, and the number of unqualified products.

4. The method for automatically collecting the amount of glue CPK / CMK according to claim 2, characterized in that: The glue dispensing time under "CPK mode" in step A1 is the time it takes to switch the glue gun on and off before entering "CPK mode" to apply glue to the product, and glue is dispensed once every 2 hours.

5. The method for automatically collecting the amount of glue CPK / CMK according to claim 2, characterized in that: Before starting the test in step B1, you need to set the glue dispensing time, number of glue dispensing groups, upper limit alarm glue volume, and lower limit alarm glue volume under "CMK mode".

6. The method for automatically collecting the amount of glue CPK / CMK according to claim 5, characterized in that: The glue discharging time is 10s, and the number of glue discharging groups is 50 groups.

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