Control device for calibrating deviation between electronic jacquard machine and weaving machine in real time
By using absolute value encoder and motion controller for real-time position monitoring and calibration in looms and jacquards, the position deviation problem caused by the loss of pulses of incremental encoder is solved, and higher control accuracy and weaving efficiency are achieved.
Patent Information
- Application Number
- CN202420146270.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-01-22
AI Technical Summary
In the prior art, the loom and jacquard are prone to the problem of the loss of pulses of the incremental encoder during operation, which leads to the out-of-synchronization of the jacquard and the loom, and the position deviation occurs, which in turn causes problems such as short tails and warp breakage, affecting the weaving efficiency and fabric quality.
The control device for real-time calibration of deviation between the electronic jacquard machine and the loom is adopted. The spindle position is monitored through the loom absolute value encoder and the jacquard absolute value encoder, and the position signals of the two are recorded and compared in real time. The rotation of the jacquard spindle transmission motor is adjusted through the motion controller and the servo drive to achieve real-time calibration of the deviation.
It effectively avoids the problem of excessive position deviation, improves control accuracy, prevents the occurrence of short tails and meridian breakage, and improves weaving efficiency and fabric quality.
Smart Images
Figure CN222557173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of jacquard machines, in particular to a control device for real-time calibration deviation between an electronic jacquard machine and a loom. Background Art
[0002] During the operation of the loom and jacquard machine, at present, the loom electronic control system usually controls the operation of the loom main shaft drive motor. An incremental encoder is installed on the loom drive shaft. The incremental encoder monitors the operating condition of the loom drive shaft motor and provides the position information to the jacquard machine main shaft motor control system to control the jacquard machine main shaft drive motor and let the jacquard machine follow the position to achieve the purpose of synchronization between the loom and the jacquard machine.
[0003] In actual operation of the above control method, there is a phenomenon of incremental encoder losing pulses, which causes the jacquard machine and the loom to be out of synchronization. Since the jacquard machine is only following and cannot warn of the lost pulses, once too many pulses are lost, the position deviation of the equipment will increase, and problems such as short tail and broken warp will occur, which will affect the weaving efficiency and even damage the fabric, so improvements are needed. Utility Model Content
[0004] The utility model aims to provide a control device for real-time calibration deviation between an electronic jacquard machine and a loom, to monitor the main shaft position and calibrate the deviation between the electronic jacquard machine and the loom, to avoid the problem of excessive position deviation and to improve the control accuracy.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A control device for real-time calibration deviation between an electronic jacquard machine and a loom, comprising: an electronic jacquard machine, a loom, a motion controller, a loom absolute value encoder, a jacquard machine absolute value encoder, a jacquard machine main shaft drive motor and a servo driver, wherein the jacquard machine main shaft drive motor is arranged on the electronic jacquard machine to drive the main shaft of the electronic jacquard machine, the jacquard machine absolute value encoder is arranged at the main shaft end of the electronic jacquard machine, the loom absolute value encoder is arranged at the main shaft end of the loom, the jacquard machine absolute value encoder and the loom absolute value encoder are respectively connected to the motion controller, the motion controller is connected to the servo driver, and the servo driver is connected to the jacquard machine main shaft drive motor.
[0007] Wherein, the electronic jacquard machine is arranged on one side of the loom.
[0008] Wherein, the main shaft transmission motor of the jacquard machine adopts a servo motor.
[0009] The motion controller receives the loom main shaft position signal a sent by the loom absolute encoder, sends corresponding control instructions to the servo driver, and controls the jacquard machine main shaft drive motor to rotate.
[0010] The motion controller receives the electronic jacquard machine main shaft position signal b sent by the jacquard machine absolute encoder, compares it with the loom main shaft position signal a sent by the loom absolute encoder, and obtains and records the real-time deviation value c between the loom main shaft position signal a and the electronic jacquard machine main shaft position signal b.
[0011] Among them, the motion controller compares the real-time deviation value c with the preset maximum deviation value d. If the real-time deviation value c>the maximum deviation value d, a warning signal is issued and the rotation of the jacquard machine main shaft transmission motor is adjusted through the servo driver to reduce the real-time deviation value c.
[0012] The beneficial effects of the utility model include: a control device for real-time calibration deviation between an electronic jacquard machine and a loom, which adopts a loom absolute value encoder and a jacquard machine absolute value encoder to monitor the main shaft positions of the loom and the electronic jacquard machine, controls the rotation of the jacquard machine main shaft drive motor according to the loom main shaft position signal a, obtains and records the real-time deviation value c of the loom main shaft position signal a and the electronic jacquard machine main shaft position signal b, adjusts the rotation of the jacquard machine main shaft drive motor through the servo driver, reduces the real-time deviation value c, realizes real-time calibration of the deviation, improves control accuracy, avoids problems such as short tail and broken warp caused by excessive position deviation, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0014] Combine the following Figure 1 The technical solution of the utility model is further illustrated by specific embodiments.
[0015] like Figure 1 The control device for real-time calibration deviation between an electronic jacquard machine and a loom shown in the figure comprises: an electronic jacquard machine 1, a loom 2, a motion controller 6, a loom absolute value encoder 7, a jacquard machine absolute value encoder 4, a jacquard machine main shaft drive motor 3 and a servo driver 5. The electronic jacquard machine 1 is arranged on one side of the loom 2 and is relatively close. The jacquard machine main shaft drive motor 3 is arranged on the electronic jacquard machine 1 to drive the main shaft of the electronic jacquard machine 1. In this embodiment, the jacquard machine main shaft drive motor adopts a servo motor, and the operating angle is precise.
[0016] The jacquard machine absolute value encoder 4 is set at the main shaft end of the electronic jacquard machine 1, and the electronic jacquard machine main shaft position signal b is obtained in real time. The loom absolute value encoder 7 is set at the main shaft end of the loom 2, and the loom main shaft position signal a is obtained in real time. The absolute value encoder is not afraid of sudden power failure, and there is no phenomenon of incremental encoder losing pulses.
[0017] The jacquard machine absolute value encoder 4 and the loom absolute value encoder 7 are respectively connected to the motion controller 6, the motion controller 6 is connected to the servo driver 5, and the servo driver 5 is connected to the jacquard machine main shaft drive motor 3 to achieve closed-loop control.
[0018] like Figure 1 As shown, the motion controller 6 receives the loom main shaft position signal a sent by the loom absolute value encoder 7, sends a corresponding control instruction to the servo driver 5, and controls the jacquard machine main shaft drive motor 3 to rotate.
[0019] At the same time, the motion controller 6 receives the electronic jacquard machine main shaft position signal b sent by the jacquard machine absolute encoder 4, compares it with the loom main shaft position signal a sent by the loom absolute encoder 7, obtains and records the real-time deviation value c between the loom main shaft position signal a and the electronic jacquard machine main shaft position signal b, so as to facilitate real-time calibration.
[0020] Specifically, the motion controller 6 compares the real-time deviation value c with the preset maximum deviation value d. If the real-time deviation value c>the maximum deviation value d, a warning signal is issued and the rotation of the jacquard machine main shaft drive motor is adjusted through the servo driver to reduce the real-time deviation value c, thereby realizing real-time calibration of the deviation and improving control accuracy and production efficiency.
[0021] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.
Claims
1. A control device for real-time calibration deviation between an electronic jacquard machine and a loom, characterized in that: include: An electronic jacquard machine, a loom, a motion controller, a loom absolute value encoder, a jacquard machine absolute value encoder, a jacquard machine main shaft drive motor and a servo driver. The jacquard machine main shaft drive motor is arranged on the electronic jacquard machine to drive the main shaft of the electronic jacquard machine. The jacquard machine absolute value encoder is arranged on the main shaft end of the electronic jacquard machine. The loom absolute value encoder is arranged on the main shaft end of the loom. The jacquard machine absolute value encoder and the loom absolute value encoder are respectively connected to the motion controller. The motion controller is connected to the servo driver. The servo driver is connected to the jacquard machine main shaft drive motor.
2. The control device for real-time calibration deviation between an electronic jacquard machine and a loom according to claim 1 is characterized in that: The electronic jacquard machine is arranged on one side of the loom.
3. The control device for real-time calibration deviation between an electronic jacquard machine and a loom according to claim 1, characterized in that: The jacquard machine main shaft transmission motor adopts a servo motor.
4. The control device for real-time calibration deviation between an electronic jacquard machine and a loom according to claim 1, characterized in that: The motion controller receives the loom main shaft position signal a sent by the loom absolute encoder, sends corresponding control instructions to the servo driver, and controls the jacquard machine main shaft drive motor to rotate.
5. The control device for real-time calibration deviation between an electronic jacquard machine and a loom according to claim 4, characterized in that: The motion controller receives the electronic jacquard machine main shaft position signal b sent by the jacquard machine absolute encoder, compares it with the loom main shaft position signal a sent by the loom absolute encoder, and obtains and records the real-time deviation value c between the loom main shaft position signal a and the electronic jacquard machine main shaft position signal b.
6. The control device for real-time calibration deviation between an electronic jacquard machine and a loom according to claim 5, characterized in that: The motion controller compares the real-time deviation value c with the preset maximum deviation value d. If the real-time deviation value c>the maximum deviation value d, a warning signal is issued and the rotation of the jacquard machine main shaft transmission motor is adjusted through the servo driver to reduce the real-time deviation value c.