Industrial flat sewing machine cloth puncturing sewing speed changing stem crossing method and device for stacking sewing materials
A lockstitch sewing machine and stem-passing technology, which is applied in the direction of sewing machine control devices, sewing machine components, sewing equipment, etc., can solve problems such as sudden instability of needle load, reduction of sewing efficiency, and change of motor speed
Active Publication Date: 2018-11-16
ZHEJIANG UNIV
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The traditional method only changes the motor speed by detecting the thickness of the fabric, but for different physical properties of the fabric, the motor speed cannot be changed only by detecting the thickness of the fabric. The sudden instability of the needle load is also one of the reasons for the reduction of sewing efficiency. Therefore, a method that can detect the sewing state in real time and observe the needle load is needed to achieve flexible threading
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0041] In the specific implementation of the present invention, the variable sewing speed sewing device includes a calculation module, an identification module, a motor module and a pricking module.
[0042] The motor module, including the brushless DC motor, receives the motor control speed sent by the calculation module to change the speed of the brushless DC motor;
[0043] The stabbing cloth module includes a crank link mechanism, an angular velocity sensor and a crank hinge force sensor. The angular velocity sensor is installed at one end of the crank in the crank link mechanism, and the crank hinge force sensor is installed at both ends of the crank in the crank link mechanism. In the industrial sewing machine, the output shaft of the brushless DC motor and the sewing needle are connected by a crank linkage mechanism. The angular velocity ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an industrial flat sewing machine cloth puncturing sewing speed changing stem crossing method and device for stacking sewing materials. Through a sewing needle pressure sensorand a cloth thickness sensor, a process cloth puncturing force of a sewing needle and the thickness of a cloth are detected and transmitted to an identification module in real time, and a hinge binding force, an angular velocity, a power and an actual motor rotation speed of both ends of a crank are detected by a cloth puncturing module and a motor rotation speed sensor, and transmitted to an arithmetic module in real time; the identification module judges whether or not a stem crossing phenomenon occurs according to the data obtained by the sensor through detection by using a stem crossing judging method, and if the stem crossing phenomenon occurs, the arithmetic module adjusts the rotational speed of a brushless direct current motor by using a dynamic adjustment method until the stem crossing phenomenon ends. The method optimizes and adjusts the sewing speed in real time, achieves the adaptive matching of the sewing speed, the thickness of a sewing material and the rotation speed ofthe motor, and breaks a shifting stabilization technology of the stem crossing regions of the sections of the stacking swing materials in the high-speed sewing process.
Description
technical field [0001] The present invention relates to a method and a device for threading the stalk at a variable sewing speed of sewing machine stitching material in the technical field of sewing machines, in particular, a method and a device for threading the stalk at a variable sewing speed of an industrial lockstitch sewing machine for sewing materials are designed , to achieve a breakthrough in the technology of variable speed and stability enhancement in the cross-section area of the overlapping seam material during high-speed sewing. Background technique [0002] Existing sewing machines always maintain a certain speed during the sewing process, and the speed cannot be adjusted when passing the stem, so that the sewing speed of passing the stem is constant, which cannot meet the performance requirements of the barbed cloth when stacking sewing materials, and the needle load changes suddenly. Local instability. There may also be a reduction in the performance of t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): D05B69/18
CPCD05B69/18D05D2305/32
Inventor 高一聪曾思远冯毅雄邱卫明
Owner ZHEJIANG UNIV