A weft insertion electromagnetic valve opening and closing control test system, method and equipment
By splitting and verifying the differential signal of the loom encoder, the accuracy problem of testing the weft insertion solenoid valve of the loom was solved, thus improving the stability and efficiency of the loom.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG RIFA TEXTILE MACHINERY
- Filing Date
- 2025-12-04
- Publication Date
- 2026-06-02
AI Technical Summary
How to effectively test whether the weft insertion solenoid valve of a loom is working properly in order to avoid problems such as weft yarn looping and low efficiency during weaving.
The differential signal of the loom encoder is split and calculated by the encoder splitter board and the motion control programmable logic controller. The opening and closing status of the weft insertion solenoid valve is collected and the consistency is verified with the preset comparison table to determine the test results.
This technology enables accurate testing of the opening and closing control of the weft insertion solenoid valve on a loom, improving the stability and weaving efficiency of the loom without affecting its normal operation.
Smart Images
Figure CN121325838B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of loom equipment technology, and in particular to a loom weft insertion solenoid valve opening and closing control test system, method and equipment. Background Technology
[0002] If the solenoid valve's switching angle is abnormal during weaving, it can cause the weft yarn to loop in the middle or rear position during weft insertion, preventing the weft from reaching the end. This results in more short wefts and lower efficiency. Therefore, it is necessary to verify whether the weft insertion solenoid valve is working properly.
[0003] In conclusion, how to effectively test whether the weft insertion solenoid valve of a loom is working properly is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0004] The purpose of this application is to provide a testing system for the opening and closing control of the weft insertion solenoid valve of a loom. This system enables accurate testing of the opening and closing control of the weft insertion solenoid valve of a loom, improves the stability of loom operation, and increases the weaving efficiency of the loom. Another purpose of this application is to provide a testing method, equipment, and computer-readable storage medium for the opening and closing control of the weft insertion solenoid valve of a loom.
[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:
[0006] A testing system for controlling the opening and closing of a weft insertion solenoid valve on a loom, comprising:
[0007] The encoder splitter board is used to acquire an initial encoder differential signal from the loom encoder; split the initial encoder differential signal to obtain a first encoder differential signal and a second encoder differential signal; send the first encoder differential signal to the loom electronic control system so that the loom electronic control system performs loom control according to the first encoder differential signal; and send the second encoder differential signal to the motion control programmable logic controller.
[0008] The programmable logic controller (PLC) is used to calculate the loom angle based on the differential signal from the second encoder to obtain the actual loom angle; collect the opening and closing status of the loom's weft insertion solenoid valve; record the correspondence between the actual loom angle and the opening and closing status; retrieve a preset loom angle and solenoid valve opening and closing status comparison table; perform consistency verification on the correspondence and the preset loom angle and solenoid valve opening and closing status comparison table; and determine the loom weft insertion solenoid valve opening and closing control test result based on the obtained verification result.
[0009] In one specific embodiment of this application, a signal conversion board is further provided between the weft insertion solenoid valve of the loom and the motion control programmable logic controller;
[0010] The signal conversion board is used to convert the signal voltage of the open / closed state.
[0011] In one specific embodiment of this application, a human-machine interface is also included;
[0012] The programmable logic controller for motion control is also used to send the preset loom angle and the solenoid valve opening and closing state comparison table and the corresponding relationship to the human-machine interface;
[0013] The human-machine interface is used to display the preset loom angle and the solenoid valve opening / closing state comparison table and the corresponding relationship.
[0014] In one specific embodiment of this application, the motion control programmable logic controller is further configured to clear the data of the human-machine interface when a power-on signal is detected.
[0015] In one specific embodiment of this application, the motion control programmable logic controller is specifically used to determine that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal when the verification result is inconsistent with the correspondence and the preset loom angle and solenoid valve opening and closing state comparison table.
[0016] In one specific embodiment of this application, the motion control programmable logic controller is further configured to generate detection prompt information for the solenoid valve and the electronic control board when it is determined that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal, and send the detection prompt information for the solenoid valve and the electronic control board to the human-machine interface.
[0017] The human-machine interface is also used to display detection prompts for the solenoid valve and the electronic control board.
[0018] In one specific embodiment of this application, a connection probe connected to the solenoid valve control signal line is also included;
[0019] The programmable logic controller is specifically used to acquire the opening and closing status of the weft insertion solenoid valve of the loom through the connection probe.
[0020] A test method for controlling the opening and closing of a weft insertion solenoid valve on a loom, applied to a motion control programmable logic controller, includes:
[0021] Receive the second encoder differential signal; wherein the second encoder differential signal is the signal obtained by the encoder splitter board by splitting the initial encoder differential signal of the loom encoder;
[0022] The actual loom angle is obtained by calculating the loom angle based on the differential signal from the second encoder.
[0023] Collect the opening and closing status of the weft insertion solenoid valve of the loom;
[0024] Record the correspondence between the actual loom angle and the opening / closing state;
[0025] Retrieve the preset loom angle and solenoid valve opening / closing status comparison table;
[0026] The consistency of the correspondence and the preset loom angle and solenoid valve opening and closing state comparison table is verified, and the loom weft insertion solenoid valve opening and closing control test result is determined based on the verification result.
[0027] A testing device for controlling the opening and closing of a weft insertion solenoid valve on a loom, comprising:
[0028] Memory, used to store computer programs;
[0029] A processor is used to execute the computer program to implement the steps of the test method for controlling the opening and closing of the weft insertion solenoid valve of the loom as described above.
[0030] A computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the aforementioned test method for controlling the opening and closing of a weft insertion solenoid valve on a loom.
[0031] The weft insertion solenoid valve opening and closing control test system provided in this application includes: an encoder splitter board, used to acquire an initial encoder differential signal from the weft machine encoder; split the initial encoder differential signal to obtain a first encoder differential signal and a second encoder differential signal; send the first encoder differential signal to the weft machine electronic control system so that the weft machine electronic control system controls the weft machine according to the first encoder differential signal; send the second encoder differential signal to a motion control programmable logic controller (PLC); the PLC is used to calculate the weft machine angle based on the second encoder differential signal to obtain the actual weft machine angle; acquire the opening and closing state of the weft insertion solenoid valve; record the correspondence between the actual weft machine angle and the opening and closing state; retrieve a preset weft machine angle and solenoid valve opening and closing state comparison table; perform consistency verification between the correspondence and the preset weft machine angle and solenoid valve opening and closing state comparison table; and determine the weft insertion solenoid valve opening and closing control test result based on the obtained verification result.
[0032] As can be seen from the above technical solution, by splitting the differential signal of the loom encoder, the actual loom angle and the test system angle are completely consistent, and the test results are immediately apparent without further calculation. By collecting the opening and closing states of the loom's weft insertion solenoid valve, the correspondence between the actual loom angle and the opening and closing states is recorded. The consistency of this correspondence with a preset loom angle and solenoid valve opening and closing state comparison table is verified, thereby testing the accuracy of the loom's weft insertion solenoid valve opening and closing control. The test system does not affect the loom's operation and can be used for measurement without stopping the machine. It can perform continuous measurements for extended periods, and the data can be stored, reviewed, and analyzed. This achieves accurate testing of the loom's weft insertion solenoid valve opening and closing control, enabling timely troubleshooting of abnormal states, improving the stability of the loom operation, and increasing weaving efficiency.
[0033] Accordingly, this application also provides a testing device, equipment, and computer-readable storage medium for the opening and closing control of the weft insertion solenoid valve of a loom, which are corresponding to the above-mentioned testing method for the opening and closing control of the weft insertion solenoid valve of a loom, and have the above-mentioned technical effects, which will not be repeated here. Attached Figure Description
[0034] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0035] Figure 1 This is a structural block diagram of a weft insertion solenoid valve opening and closing control test system for a loom, as described in an embodiment of this application.
[0036] Figure 2 This is a flowchart illustrating the implementation of a testing method for controlling the opening and closing of a weft insertion solenoid valve on a loom, as described in this application.
[0037] Figure 3 This is a structural block diagram of a testing device for controlling the opening and closing of a weft insertion solenoid valve on a loom, as described in an embodiment of this application.
[0038] Figure 4 This is a schematic diagram of the specific structure of a testing device for controlling the opening and closing of a weft insertion solenoid valve on a loom, as described in an embodiment of this application.
[0039] The following labels are shown in the attached diagram:
[0040] 1-Encoder branch board, 2-Motion control programmable logic controller, 3-Signal conversion board, 4-Human machine interface. Detailed Implementation
[0041] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0042] It should be noted that, in the description of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The terms "first," "second," etc., in this application are used to distinguish similar objects and are not used to describe a specific order or sequence.
[0043] See Figure 1 , Figure 1 This is a structural block diagram of a weft insertion solenoid valve opening and closing control test system for a loom, as described in an embodiment of this application. The system may include:
[0044] The encoder splitter board 1 is used to acquire the initial encoder differential signal from the loom encoder; split the initial encoder differential signal to obtain the first encoder differential signal and the second encoder differential signal; send the first encoder differential signal to the loom electronic control so that the loom electronic control performs loom control according to the first encoder differential signal; and send the second encoder differential signal to the motion control programmable logic controller 2.
[0045] The programmable logic controller 2 is used to calculate the loom angle based on the differential signal from the second encoder to obtain the actual loom angle; collect the opening and closing status of the loom's weft insertion solenoid valve; record the correspondence between the actual loom angle and the opening and closing status; retrieve the preset loom angle and solenoid valve opening and closing status comparison table; perform consistency verification between the correspondence and the preset loom angle and solenoid valve opening and closing status comparison table; and determine the test result of the loom's weft insertion solenoid valve opening and closing control based on the obtained verification result.
[0046] The loom weft insertion solenoid valve opening and closing control test system provided in this application embodiment may include an encoder splitter board 1 and a programmable logic controller (PLC) 2. The encoder splitter board 1 acquires the initial encoder differential signal from the loom encoder, splits the initial encoder differential signal into two encoder differential signals identical to the initial encoder differential signal, denoted as the first encoder differential signal and the second encoder differential signal. The first encoder differential signal is sent to the loom electrical control system, which controls the loom according to the first encoder differential signal, and sends the second encoder differential signal to the programmable logic controller 2. The programmable logic controller 2 calculates the loom angle based on the second encoder differential signal to obtain the actual loom angle, acquires the opening and closing state of the loom weft insertion solenoid valve, and records the correspondence between the actual loom angle and the opening and closing state. A standard table of loom angles and solenoid valve opening / closing states is pre-set. The table is retrieved, and its consistency is verified. Based on the verification results, the test results for the weft insertion solenoid valve opening / closing control are determined. If the consistency matches the table, the weft insertion solenoid valve opening / closing control is normal; otherwise, it indicates an abnormality.
[0047] The weft insertion solenoid valve opening and closing control test system provided in this application is easy to connect, disassemble, and carry. The system operates without affecting the loom's operation and can be used for measurements without stopping the machine. It achieves accurate testing of the weft insertion solenoid valve's opening and closing control, enabling timely troubleshooting of abnormal states. This ensures stable and reliable opening and closing control of the weft insertion solenoid valve during weaving, improving weaving efficiency.
[0048] As can be seen from the above technical solution, by splitting the differential signal of the loom encoder, the actual loom angle and the test system angle are completely consistent, and the test results are immediately apparent without further calculation. By collecting the opening and closing states of the loom's weft insertion solenoid valve, the correspondence between the actual loom angle and the opening and closing states is recorded. The consistency of this correspondence with a preset loom angle and solenoid valve opening and closing state comparison table is verified, thereby testing the accuracy of the loom's weft insertion solenoid valve opening and closing control. The test system does not affect the loom's operation and can be used for measurement without stopping the machine. It can perform continuous measurements for extended periods, and the data can be stored, reviewed, and analyzed. This achieves accurate testing of the loom's weft insertion solenoid valve opening and closing control, enabling timely troubleshooting of abnormal states, improving the stability of the loom operation, and increasing weaving efficiency.
[0049] It should be noted that, based on the above embodiments, this application also provides corresponding improvement solutions. In subsequent embodiments, steps that are the same as or corresponding to those in the above embodiments can be referred to each other, and the corresponding beneficial effects can also be referred to each other. These improvements will not be elaborated upon in the following improved embodiments.
[0050] In one specific embodiment of this application, a signal conversion board 3 is also provided between the weft insertion solenoid valve of the loom and the motion control programmable logic controller 2;
[0051] Signal conversion board 3 is used to convert the signal voltage between the open and closed states.
[0052] like Figure 1 As shown in the embodiment of this application, the loom weft insertion solenoid valve opening and closing control test system may further include a signal conversion board 3 disposed between the loom weft insertion solenoid valve and the motion control programmable logic controller 2. The signal conversion board 3 performs signal voltage conversion on the opening and closing state, converting the high-voltage, high-frequency opening and closing state signal of the loom weft insertion solenoid valve into a low-voltage, high-frequency opening and closing state signal of the loom weft insertion solenoid valve. While ensuring that the motion control programmable logic controller 2 can accurately identify the opening and closing state of the loom weft insertion solenoid valve, it also realizes voltage protection for the motion control programmable logic controller 2.
[0053] In one specific embodiment of this application, a human-machine interface 4 is also included;
[0054] The programmable logic controller 2 is also used to send the preset loom angle and the corresponding relationship between the solenoid valve opening and closing status to the human-machine interface 4;
[0055] Human-machine interface 4 is used to display the table and correspondence between the preset loom angle and the solenoid valve opening and closing status.
[0056] like Figure 1 As shown in the embodiment of this application, the loom weft insertion solenoid valve opening and closing control test system may further include a human-machine interface 4 connected to the motion control programmable logic controller 2. After recording the correspondence between the actual loom angle and the opening and closing state, and retrieving the preset loom angle and solenoid valve opening and closing state comparison table, the motion control programmable logic controller 2 sends the preset loom angle and solenoid valve opening and closing state comparison table and the corresponding relationship to the human-machine interface 4. The human-machine interface 4 displays the preset loom angle and solenoid valve opening and closing state comparison table and the corresponding relationship. By using the human-machine interface 4 to display the preset loom angle and solenoid valve opening and closing state comparison table and the corresponding relationship, maintenance personnel can promptly understand the opening and closing control status of the loom weft insertion solenoid valve by viewing the correspondence and comparison table.
[0057] In one specific embodiment of this application, the motion control programmable logic controller 2 is also used to clear the data of the human-machine interface 4 when a power-on signal is detected.
[0058] The motion control programmable logic controller 2 is also used to clear the data of the human-machine interface 4 when a power-on signal is detected, thereby avoiding the influence of historical data on the opening and closing control test of the weft insertion solenoid valve of the loom after the power is turned on, and improving the accuracy of the test results.
[0059] In one specific embodiment of this application, the motion control programmable logic controller 2 is specifically used to determine that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal when the verification result is inconsistent with the preset loom angle and the solenoid valve opening and closing state comparison table.
[0060] The programmable logic controller 2 (PLC2) is specifically used to determine if the actual opening and closing state of the weft insertion solenoid valve corresponds to a different loom angle than the data in the standard comparison table when the verification result shows a discrepancy between the correspondence and the preset loom angle and solenoid valve opening and closing state. This indicates an abnormality in the opening and closing control of the weft insertion solenoid valve. By comparing the correspondence between the actual loom angle and the opening and closing state with the standard preset loom angle and solenoid valve opening and closing state comparison table, accurate and rapid determination of the opening and closing control status of the weft insertion solenoid valve is achieved.
[0061] In one specific embodiment of this application, the motion control programmable logic controller 2 is further configured to generate detection prompt information for the solenoid valve and the electronic control board when it is determined that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal, and send the detection prompt information for the solenoid valve and the electronic control board to the human-machine interface 4.
[0062] The human-machine interface 4 is also used to display detection prompts for solenoid valves and electronic control boards.
[0063] The programmable logic controller 2 is also used to generate detection prompts for the solenoid valve and electrical control board when it is determined that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal. The detection prompts are then sent to the human-machine interface 4, which displays the detection prompts for the solenoid valve and electrical control board, thereby prompting maintenance personnel to troubleshoot the solenoid valve and electrical control board in a timely manner.
[0064] In one specific embodiment of this application, a connection probe connected to the solenoid valve control signal line is also included;
[0065] The motion control programmable logic controller 2 is specifically used to collect the opening and closing status of the weft insertion solenoid valve of the loom through a connection probe.
[0066] The loom weft insertion solenoid valve opening and closing control test system provided in this application embodiment may further include a connection probe connected to the solenoid valve control signal line. The motion control programmable logic controller 2 acquires the opening and closing state of the loom weft insertion solenoid valve through the connection probe, thereby realizing accurate acquisition of the opening and closing state of the loom weft insertion solenoid valve.
[0067] See Figure 2 , Figure 2 This is a flowchart illustrating an implementation method for testing the opening and closing control of a weft insertion solenoid valve on a loom, applicable to a motion control programmable logic controller. The method may include the following steps:
[0068] S201: Receive the differential signal from the second encoder.
[0069] The second encoder differential signal is the signal obtained by the encoder splitter board by splitting the initial encoder differential signal of the loom encoder.
[0070] S202: Calculate the loom angle based on the differential signal from the second encoder to obtain the actual loom angle.
[0071] S203: Collects the opening and closing status of the weft insertion solenoid valve of the loom.
[0072] S204: Record the correspondence between the actual loom angle and the opening / closing state.
[0073] S205: Retrieve the preset loom angle and solenoid valve opening / closing status comparison table.
[0074] S206: Verify the consistency between the correspondence and the preset loom angle and the solenoid valve opening and closing status comparison table, and determine the loom weft insertion solenoid valve opening and closing control test results based on the verification results.
[0075] As can be seen from the above technical solution, by splitting the differential signal of the loom encoder, the actual loom angle and the test system angle are completely consistent, and the test results are immediately apparent without further calculation. By collecting the opening and closing states of the loom's weft insertion solenoid valve, the correspondence between the actual loom angle and the opening and closing states is recorded. The consistency of this correspondence with a preset loom angle and solenoid valve opening and closing state comparison table is verified, thereby testing the accuracy of the loom's weft insertion solenoid valve opening and closing control. The test system does not affect the loom's operation and can be used for measurement without stopping the machine. It can perform continuous measurements for extended periods, and the data can be stored, reviewed, and analyzed. This achieves accurate testing of the loom's weft insertion solenoid valve opening and closing control, enabling timely troubleshooting of abnormal states, improving the stability of the loom operation, and increasing weaving efficiency.
[0076] In one specific embodiment of this application, step S203 may include the following steps:
[0077] The opening and closing status of the weft insertion solenoid valve of the loom is acquired from the signal conversion board after signal voltage conversion.
[0078] In one specific embodiment of this application, after step S205, the method may further include the following steps:
[0079] The preset loom angle and the corresponding relationship between the solenoid valve opening and closing status are sent to the human-machine interface so that the human-machine interface can display the preset loom angle and the corresponding relationship between the solenoid valve opening and closing status.
[0080] In one specific embodiment of this application, before step S201, the method may further include the following steps:
[0081] When a power-on signal is detected, the data on the human-machine interface is cleared.
[0082] In one specific embodiment of this application, the consistency verification of the correspondence and the preset loom angle versus the solenoid valve opening / closing state comparison table may include the following steps:
[0083] When the verification result shows that the correspondence and the preset loom angle are inconsistent with the solenoid valve opening and closing status comparison table, it is determined that the opening and closing control of the loom weft insertion solenoid valve is abnormal.
[0084] In one specific embodiment of this application, when it is determined that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal, the method may further include the following steps:
[0085] Generate detection prompts for solenoid valves and electronic control boards, and send these prompts to the human-machine interface (HMI) for display.
[0086] In one specific embodiment of this application, step S203 may include the following steps:
[0087] The opening and closing status of the weft insertion solenoid valve of the loom is collected by connecting a probe.
[0088] For the method embodiments described above, see [link to relevant documentation]. Figure 3 , Figure 3 This is a schematic diagram of the weft insertion solenoid valve opening and closing control test device for a loom provided in this application. The device may include:
[0089] Memory 332 is used to store computer programs;
[0090] The processor 322 is used to execute a computer program to implement the steps of the loom weft insertion solenoid valve opening and closing control test method of the above method embodiment.
[0091] For details, please refer to Figure 4 , Figure 4 This is a schematic diagram of the specific structure of a weft insertion solenoid valve opening and closing control testing device for a loom, provided in this embodiment. This testing device can vary significantly depending on its configuration or performance. It may include a processor (central processing unit, CPU) 322 (e.g., one or more processors) and a memory 332. The memory 332 stores one or more computer programs 342 or data 344. The memory 332 can be either temporary or permanent storage. The program stored in the memory 332 may include one or more modules (not shown in the diagram), each module including a series of instruction operations on the data processing device. Furthermore, the processor 322 may be configured to communicate with the memory 332 to execute the series of instruction operations stored in the memory 332 on the weft insertion solenoid valve opening and closing control testing device 301.
[0092] The testing equipment 301 for controlling the opening and closing of the weft insertion solenoid valve of a loom may also include one or more power supplies 326, one or more wired or wireless network interfaces 350, one or more input / output interfaces 358, and / or one or more operating systems 341.
[0093] The steps in the test method for the opening and closing control of the weft insertion solenoid valve of the loom described above can be implemented by the structure of the test equipment for the opening and closing control of the weft insertion solenoid valve of the loom.
[0094] Corresponding to the above method embodiments, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the following steps:
[0095] Receive the differential signal from the second encoder; wherein the differential signal from the second encoder is the signal obtained by the encoder splitter board by splitting the initial differential signal of the loom encoder; calculate the loom angle based on the differential signal from the second encoder to obtain the actual loom angle; collect the opening and closing status of the loom weft insertion solenoid valve; record the correspondence between the actual loom angle and the opening and closing status; retrieve the preset loom angle and solenoid valve opening and closing status comparison table; verify the consistency between the correspondence and the preset loom angle and solenoid valve opening and closing status comparison table, and determine the test result of the loom weft insertion solenoid valve opening and closing control based on the obtained verification result.
[0096] The computer-readable storage medium may include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0097] For a description of the computer-readable storage medium provided in this application, please refer to the above method embodiments; further details will not be repeated here.
[0098] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The methods, apparatuses, and computer-readable storage media disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments; relevant details can be found in the method section.
[0099] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.
Claims
1. A weft insertion electromagnetic valve opening and closing control test system of a loom, characterized by, include: The encoder splitter board (1) is used to acquire the initial encoder differential signal from the loom encoder; The initial encoder differential signal is split to obtain a first encoder differential signal and a second encoder differential signal; the first encoder differential signal is sent to the loom control system so that the loom control system controls the loom according to the first encoder differential signal; the second encoder differential signal is sent to the motion control programmable logic controller (2). The programmable logic controller (2) is used to calculate the loom angle based on the differential signal of the second encoder to obtain the actual loom angle; collect the opening and closing status of the loom weft insertion solenoid valve; record the correspondence between the actual loom angle and the opening and closing status; retrieve the preset loom angle and solenoid valve opening and closing status comparison table; perform consistency verification on the correspondence and the preset loom angle and solenoid valve opening and closing status comparison table; and determine the loom weft insertion solenoid valve opening and closing control test result based on the obtained verification result.
2. The loom weft insertion solenoid valve opening and closing control test system according to claim 1, characterized in that, It also includes a signal conversion board (3) disposed between the weft insertion solenoid valve of the loom and the motion control programmable logic controller (2); The signal conversion board (3) is used to convert the signal voltage of the open and closed states.
3. The loom weft insertion solenoid valve opening and closing control test system according to claim 1, characterized in that, It also includes the human-computer interface (4); The programmable logic controller (2) is also used to send the preset loom angle and the solenoid valve opening and closing state comparison table and the corresponding relationship to the human-machine interface (4). The human-machine interface (4) is used to display the preset loom angle and the solenoid valve opening and closing status comparison table and the corresponding relationship.
4. The loom weft insertion solenoid valve opening and closing control test system according to claim 3, characterized in that, The programmable logic controller (2) is also used to clear the data of the human-machine interface (4) when a power-on signal is detected.
5. The loom weft insertion solenoid valve opening and closing control test system according to claim 1, characterized in that, The programmable logic controller (2) is specifically used to determine that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal when the verification result is inconsistent with the correspondence and the preset loom angle and solenoid valve opening and closing state comparison table.
6. The loom weft insertion solenoid valve opening and closing control test system according to claim 5, characterized in that, The programmable logic controller (2) is also used to generate detection prompt information for the solenoid valve and the electronic control board when it is determined that the opening and closing control of the weft insertion solenoid valve of the loom is abnormal, and to send the detection prompt information for the solenoid valve and the electronic control board to the human-machine interface (4). The human-machine interface (4) is also used to display the detection prompt information of the solenoid valve and the electronic control board.
7. The loom weft insertion solenoid valve opening and closing control test system according to claim 1, characterized in that, It also includes a connection probe that connects to the solenoid valve control signal line; The programmable logic controller (2) is specifically used to collect the opening and closing status of the weft insertion solenoid valve of the loom through the connection probe.
8. A test method for controlling the opening and closing of a weft insertion solenoid valve on a loom, characterized in that, Applications include motion control programmable logic controllers, including: Receive the second encoder differential signal; wherein the second encoder differential signal is the signal obtained by the encoder splitter board by splitting the initial encoder differential signal of the loom encoder; The actual loom angle is obtained by calculating the loom angle based on the differential signal from the second encoder. Collect the opening and closing status of the weft insertion solenoid valve of the loom; Record the correspondence between the actual loom angle and the opening / closing state; Retrieve the preset loom angle and solenoid valve opening / closing status comparison table; The consistency of the correspondence and the preset loom angle and solenoid valve opening and closing state comparison table is verified, and the loom weft insertion solenoid valve opening and closing control test result is determined based on the verification result.
9. A testing device for controlling the opening and closing of a weft insertion solenoid valve on a loom, characterized in that, include: Memory, used to store computer programs; A processor is configured to execute the computer program to implement the steps of the loom weft insertion solenoid valve opening and closing control test method as described in claim 8.
10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the weft insertion solenoid valve opening and closing control test method as described in claim 8.