Control system for tracing workpiece state in cooling channel
By using the combination of RFID system and PLC controller in the aluminum casting cooling channel, the problem of inaccurate workpiece state traceability under smoke interference is solved, and high reliability and automated workpiece state information reading and writing are achieved.
Patent Information
- Application Number
- CN202421809481.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In cooling channels with large smoke, photoelectric switch detection is easily disturbed by smoke, resulting in inaccurate traceability of workpiece status and affecting program logic judgment.
A control system including an RFID system, a PLC controller, a robot system and a cooling system was designed. By installing an RFID scanning tag and an RFID read-write head on the tool pallet, information reading, writing and traceability of the workpiece status is realized.
The accurate reading and writing of workpiece information is achieved in a closed smoke environment, which improves the reliability and automation of workpiece state traceability, and reduces manual intervention.
Smart Images
Figure CN222843142U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of aluminum casting product casting, and is used for tracing the state of a product in a cooling channel with large smoke. Background Art
[0002] After the aluminum casting product is cast, there is a lot of smoke inside the cooling channel because a relatively sealed cooling environment needs to be provided. This smoke is mainly generated when the sand core is cooled. At present, the status of the product in the cooling channel is detected by a photoelectric switch or not detected. The photoelectric inspection is easily disturbed by the smoke, and not detecting it is easy to interfere with the judgment of the program logic. Summary of the invention
[0003] In view of the above technical problems, the utility model designs a control system which can trace the state of workpieces in the cooling channel, thereby improving the traceability reliability of aluminum castings.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a control system for tracing the status of workpieces, including an RFID system, a PLC controller, a robot system, a cooling system and other necessary equipment. Specifically, an RFID scanning tag is installed on each tooling pallet, and an RFID read-write head is installed at each unloading position. When the robot places the workpiece at the unloading position, the system determines that there is a workpiece on the pallet here based on the photoelectric detection switch installed here and the robot placement signal. The system writes the workpiece status into the RFID tag on the tooling pallet through the RFID read-write head. When the workpiece follows the tooling pallet to run inside the cooling channel, at the workstation where the workpiece status needs to be read, the RFID read-write head installed on the equipment can read the workpiece status in the tooling pallet, and the system makes subsequent actions based on this status.
[0005] A control system for tracing the status of workpieces in a cooling channel, a handling robot is arranged next to a casting machine, and is used to take out workpieces from the casting machine; a discharge station is arranged at the front end of a sand core conveying device, and an RFID reading and writing station and an RFID reading and writing head installed in the RFID reading and writing station are arranged on the discharge station; a tooling tray can be placed on the discharge station, and the discharge station is arranged next to the handling robot, and the handling robot can place the workpiece in the tooling tray on the discharge station; an RFID tag is arranged at the bottom of the tooling tray, and a photoelectric detection switch is also arranged on the side of the tooling tray, and the position of the RFID tag corresponds to the RFID reading and writing head. It also includes a cooling channel, and a detection station is arranged in the cooling channel, and an RFID reading and writing head is also arranged on the detection station.
[0006] Furthermore, the control system also includes a pallet conveyor line, one end of which is arranged beside the handling robot, and the handling robot can pick up and place the tooling pallet from the pallet conveyor line by staggeredly passing through the cooling channel. The pallet returns to the cooling channel for the next working cycle.
[0007] Furthermore, the core conveying device is also offset through the cooling channel.
[0008] Furthermore, the control system also includes an abnormal discharge line, and the position where the abnormal discharge line misaligns and passes through the cooling channel is located at a detection station of the cooling channel.
[0009] Furthermore, the end of the cooling channel is connected to a discharging station, which is also provided with an RFID reader / writer head.
[0010] Furthermore, a pick-up signal generator and a material detection switch are provided on the discharging station, and the pick-up signal generator and the material detection switch are communicatively connected with the PLC controller of the control system.
[0011] Furthermore, end lifts are provided at both ends of the cooling channel. The cooling system includes a cooling channel, a lifting mechanism at the end of the cooling channel, and a control system of the cooling channel.
[0012] The utility model has the following beneficial effects: the control system for tracing the workpiece status in the cooling channel of the utility model can realize the reading and writing of workpiece information in a closed smoke environment, which is convenient for the control system to make subsequent actions according to the actual situation. The RFID read-write head and the RFID tag form a complete information reading and writing, information confirmation, and information recording system, which has high security and reliability and high automation. With the cooperation of the handling robot, the material discharge station, the reading and writing station, and the detection station, the workpiece transfer process, that is, the abnormal handling work, can be handled without manual participation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a layout diagram of a control system for tracing the status of a workpiece in a cooling channel according to an embodiment of the present utility model.
[0014] Figure 2 A schematic diagram of a cooling channel of a control system for tracing the state of a workpiece in a cooling channel of an embodiment of the utility model.
[0015] Figure 3 This is a schematic diagram of RFID detection of a control system for tracing the status of a workpiece in a cooling channel according to an embodiment of the utility model.
[0016] 1 is a casting machine, 2 is a handling robot, 3 is a material discharge station, 4 is a sand core conveying device, 5 is a cooling channel, 6 is an RFID reading and writing station, 7 is an RFID tag, and 8 is an RFID reading and writing head. DETAILED DESCRIPTION
[0017] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings.
[0018] The control system for tracing the state of workpieces in the cooling channel of this embodiment includes a casting machine 1, which is used for casting workpieces; a handling robot 2, which is used for handling the cast workpieces in the unit; a discharge station 3, which is used for the handling robot 2 to place the coded workpieces on the pallet; a sand core conveying device 4, which is used to provide the sand cores and filters required for the casting machine 1 to cast the workpieces; a cooling channel 5, which is used for cooling the cast workpieces; an RFID read-write station 6, which is the installation location of an RFID read-write head 8 for reading information in an RFID tag 7; an RFID tag 7, the information of the pallet is written into this tag by the RFID read-write head 8, and the subsequent RFID read-write head 8 can read the product information in the pallet through the tag.
[0019] like Figure 1-3 As shown, the casting machine 1 is a low-pressure casting device, and the handling robot 2 is arranged beside the casting machine 1 to take out the workpieces in the casting machine 1; the discharge station 3 is arranged at the front end of the sand core conveying device 4, and the discharge station 3 is provided with an RFID reading and writing station 6 and an RFID reading and writing head 8 installed in the RFID reading and writing station 6; the discharge station 3 can be placed on the tooling tray, and the discharge station 3 is arranged beside the handling robot 2, and the handling robot 2 can place the workpiece in the tooling tray on the discharge station 3; an RFID tag 7 is arranged at the bottom of the tooling tray, and a photoelectric detection switch is also arranged on the side of the tooling tray, and the position of the RFID tag 7 corresponds to the RFID reading and writing head 8. It also includes a cooling channel 5, and a detection station is arranged in the cooling channel 5, and an RFID reading and writing head 8 is also arranged on the detection station; the end of the cooling channel 5 is connected to the discharge station, and an RFID reading and writing head 8 is also arranged on the discharge station.
[0020] During normal operation, the handling robot 2 grabs the sand core and filter screen from the sand core conveying device 4, and then stands by in front of the casting machine 1. The casting machine 1 opens the mold, grabs the workpiece and places the filter screen and sand core through the handling robot 2. After the handling robot 2 takes out the workpiece, it places the workpiece on the tray outside the cooling channel 5. A photoelectric detection switch is installed on the side of the tray. At this time, the system determines that there is material on the current tray based on the photoelectric switch and the robot's material discharge signal, and writes this material signal and other related information into the RFID tag 7. 6 is an RFID reading and writing station, and the RFID tag 7 is located at the bottom of the tooling tray. The RFID tag 7 on the current tooling tray is written with material information. After the control system reads and writes and verifies that it has been written, the tooling tray runs to the cooling channel 5. When the tooling tray runs to the station where it is necessary to determine whether there is a workpiece on the tooling tray at the current position, an RFID read-write head 8 is also installed there. The RFID read-write head 8 is located on the cooling channel bracket. The RFID read-write head 8 reads the RFID tag 7 to read the information of the product in the tooling tray. According to this information, the system can make corresponding actions. When the tooling pallet runs to the unloading station, the workpiece is manually lowered, and the control system receives the pickup signal. According to the pickup signal and the material detection switch installed here, it is determined that the tooling pallet has been taken away. An RFID reader / writer head 8 is also installed at the unloading station. The system changes the content of the RFID tag 7 through the RFID reader / writer head 8, so that the workpiece information of the pallet is cleared. The PLC controller of the control system includes a CPU, a communication module, and an IO module. The RFID reader / writer head 8, the RFID gateway and the RFID tag 7 constitute an RFID system. The handling robot 2 includes a robot body and a workpiece gripper. The cooling system includes a cooling channel 5, a lifting mechanism at the end of the cooling channel 5, and a control system of the cooling channel 5.
[0021] In addition, the control system of this embodiment also includes a pallet conveyor line, one end of which is arranged next to the handling robot 2, and the handling robot 2 is staggered through the cooling channel 5 so that the handling robot 2 can pick up and place the tooling pallet from the pallet conveyor line 9. After the pallet returns to the cooling channel, the next working cycle is carried out.
[0022] The sand core conveying device 4 also passes through the cooling channel 5 in an offset manner. The control system further comprises an abnormal discharge line 10 , and the position where the abnormal discharge line 10 passes through the cooling channel 5 in an offset manner is located at a detection station of the cooling channel 5 .
[0023] The above embodiments are only for illustrating the technical idea of the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A control system for tracing the status of a workpiece in a cooling channel, characterized in that: The handling robot is arranged next to the casting machine and is used to take out the workpieces from the casting machine; the unloading station is arranged at the front end of the sand core conveying device, and is provided with an RFID reading and writing station and an RFID reading and writing head installed in the RFID reading and writing station; a tooling pallet can be placed on the unloading station, and the unloading station is arranged next to the handling robot, and the handling robot can place the workpiece in the tooling pallet on the unloading station; an RFID tag is provided at the bottom of the tooling pallet, and a photoelectric detection switch is also provided on the side of the tooling pallet, and the position of the RFID tag corresponds to the RFID reading and writing head; it also includes a cooling channel, and a detection station is provided in the cooling channel, and an RFID reading and writing head is also provided at the detection station.
2. The control system for tracing the status of workpieces in a cooling channel according to claim 1, characterized in that: The control system also includes a pallet conveyor line, one end of which is arranged next to the handling robot and staggered through the cooling channel. The handling robot can pick up and place tooling pallets from the pallet conveyor line.
3. The control system for tracing the status of workpieces in a cooling channel according to claim 1 or 2, characterized in that: The core transport device is offset through the cooling channel.
4. The control system for tracing the status of workpieces in a cooling channel according to claim 1, characterized in that: The control system also includes an abnormal discharge line, and the position where the abnormal discharge line misaligns and passes through the cooling channel is located at a detection station of the cooling channel.
5. The control system for tracing the status of workpieces in a cooling channel according to claim 1, characterized in that: The end of the cooling channel is connected to the discharging station, which is also equipped with an RFID read-write head.
6. The control system for tracing the status of workpieces in a cooling channel according to claim 5, characterized in that: A pick-up signal generator and a material presence detection switch are provided on the discharging station, and the pick-up signal generator and the material presence detection switch are communicatively connected with a PLC controller of the control system.
7. The control system for tracing the status of workpieces in a cooling channel according to claim 1, characterized in that: End lifts are provided at both ends of the cooling channel.