阅读说明：本技术 基于底线监测的暂停缝纫方法、装置、电子设备及存储介质 (Sewing pause method and device based on bottom line monitoring, electronic equipment and storage medium ) 是由 侯文学 邢少鹏 于 2019-04-23 设计创作，主要内容包括：基于底线监测的暂停缝纫方法、装置、电子设备及存储介质,获取各车缝段的底线用量,若收到底线监测信号,根据车缝段的底线用量获取暂停缝纫位置。本申请对现有缝制设备上监测底线消耗情况的技术方案进行了改进,能够较为精确的计算底线的消耗量,实现了底线基本耗尽时再暂停缝纫更换梭芯,从而有效避免了底线的浪费,降低了缝纫生产成本。基于底线监测的暂停缝纫方法,所涉及的算法简单易行,如果更换花样或缝纫物料无需事先进行试缝制等操作,易于在实际缝纫生产中推广应用。(The sewing pause method and device based on the bottom thread monitoring, the electronic equipment and the storage medium acquire the bottom thread amount of each sewing section, and if the bottom thread monitoring signal is received, the sewing pause position is acquired according to the bottom thread amount of the sewing section. The technical scheme of monitoring the bobbin thread consumption condition on the existing sewing equipment is improved, the consumption of the bobbin thread can be accurately calculated, sewing is suspended again to replace the bobbin when the bobbin thread is basically exhausted, therefore, the waste of the bobbin thread is effectively avoided, and the sewing production cost is reduced. The sewing pause method based on the bottom thread monitoring has simple and easy related algorithm, and is easy to popularize and apply in the actual sewing production if the operations such as trial sewing and the like are not needed in advance when the patterns are replaced or the sewing materials are sewn.)

1. A method of pausing sewing based on bobbin thread monitoring, the method comprising: obtaining the residual sewing time corresponding to the sewing suspension from the receiving of the bottom thread monitoring signal, wherein the residual sewing time is determined byDetermination of where M₁For the number of needles corresponding to the time from the receipt of the bottom thread monitoring signal to the time of the sewing pause, S₁the rotation speed of the main shaft of the sewing equipment, T is the time required by one-time thread cutting of the sewing equipment, M₂The number of thread trimming times corresponding to the thread cutting pause from the reception of the bottom thread monitoring signal, F the idle length corresponding to the thread cutting pause from the reception of the bottom thread monitoring signal, S₂The idle feeding speed of the sewing equipment.

2. The method according to claim 1, characterized in that the bottom thread usage of each sewing section is obtained; and if the bottom thread monitoring signal is received, acquiring a sewing pause position according to the bottom thread consumption of the sewing section.

3. The method of claim 2, wherein the amount of thread used in the stitching section includes an amount of thread used in each needle point included in the stitching section and a length of thread cut in the stitching section.

4. The method of claim 3, wherein the amount of the bottom line of the needle point is determined byDetermining, wherein x and y are the abscissa and the ordinate of the needle point, and H is the thickness of the sewing material; the trimming length of the sewing section comprises a trimming starting length and a trimming ending length.

5. The method of claim 2, wherein obtaining a pause stitching location based on a bottom thread usage of the sewn section comprises:

(1) Judging whether the current sewing section is the last section of the current pattern when the bottom line monitoring signal is received, if so, taking the last needle point of the current sewing section as the sewing pause position, and if not, executing the step (2);

(2) Judging whether the residual bottom thread amount of the current sewing section is not less than the preset residual bottom thread amount or not, if so, setting the last needle point of the current sewing section as the sewing pause position, and if not, executing the step (3);

(3) Traversing each subsequent sewing section from the next sewing section of the current sewing section to the last sewing section of the current pattern, accumulating the residual bottom thread amount of the current sewing section and the total bottom thread amount of each subsequent sewing section, if the accumulated value is larger than the preset residual bottom thread amount when a certain subsequent sewing section is accumulated, determining the first needle point of the certain subsequent sewing section as the sewing pause position, otherwise, determining the last needle point of the last sewing section of the current pattern as the sewing pause position.

6. the method of claim 5, wherein the remaining bottom thread usage of the sewing section is a sum of a summed bottom thread usage of needle points from a current needle point of the sewing section to a last needle point of the sewing section and a summed trim length corresponding to the current needle point of the sewing section to the last needle point of the sewing section, and the total bottom thread usage of the sewing section is a sum of the summed bottom thread usage of all needle points of the sewing section and the summed trim length of the sewing section.

7. Pause sewing device based on bottom line monitoring, characterized in that the device comprises: a remaining sewing time obtaining device; the residual sewing time acquisition device is used for acquiring residual sewing time corresponding to sewing suspension from the receiving of the bottom line monitoring signalThe sewing time is controlled byDetermination of where M₁For the number of needles corresponding to the time from the receipt of the bottom thread monitoring signal to the time of the sewing pause, S₁The rotation speed of the main shaft of the sewing equipment, T is the time required by one-time thread cutting of the sewing equipment, M₂The number of thread trimming times corresponding to the thread cutting pause from the reception of the bottom thread monitoring signal, F the idle length corresponding to the thread cutting pause from the reception of the bottom thread monitoring signal, S₂The idle feeding speed of the sewing equipment.

8. Electronic device, characterized in that it comprises a processor and a memory for storing computer instructions, said processor being configured to execute the computer instructions stored in said memory to cause said electronic device to execute the bobbin thread monitoring based pause sewing method according to any of claims 1-6.

9. Computer-readable storage medium, characterized in that the storage medium stores a computer program which, when executed, implements the bobbin thread monitoring-based pause sewing method according to any one of claims 1 to 6.

Technical Field

The present application relates to sewing technology, and more particularly, to a method and apparatus for pausing a sewing operation based on a bottom thread monitor, an electronic device, and a storage medium.

Background

A sewing machine generally refers to a machine capable of forming stitches on a sewing material. The bobbin of the sewing device leads out the bottom thread, the bottom thread is continuously consumed in the process of sewing cloth or other materials, the sewing device should pause the sewing before the bottom thread is consumed, and the bobbin without the bottom thread is replaced by the bobbin full of the bottom thread. Some devices for monitoring the consumption condition of the bottom thread exist on the existing sewing equipment, for example, a sensor arranged near the shuttle peg is arranged, when the bottom thread on the shuttle peg is consumed to a certain degree, the sensor can send a signal to a control system of the sewing equipment, and the control system of the sewing equipment immediately sends an instruction to stop sewing after receiving the signal of the sensor. However, due to various reasons such as the limitation of the mechanical structure of the sewing equipment and the insufficient accuracy of the sensor, the bobbin thread on the bobbin is not completely consumed when the sensor sends a signal, and 1-2 meters of bobbin thread may remain. The bobbin is stopped from being sewn and replaced immediately after the signal of the sensor is received, and the residual bottom thread on the original bobbin is wasted. For large-scale industrial production, the cost caused by such waste is considerable.

Modern sewing machines sew according to patterns, which are data files containing sewing related data. Based on this, there are also algorithms for calculating the amount of thread consumed based on the pattern and the sewing material on the premise that the bobbin is fully wound with the bobbin thread. However, the above algorithm is complicated to implement, and it is necessary to accumulate empirical parameters by trying to sew several times in advance in order to obtain an ideal effect. If the patterns or sewing materials are frequently changed in the actual sewing production, the application of the above algorithm is very troublesome or even impossible.

The application provides a sewing pause method based on bottom thread monitoring, and the existing devices such as a sensor for monitoring the bottom thread consumption condition of a sewing device are still utilized, but a control system of the sewing device receives signals of the sensor and does not pause sewing immediately, the consumption of the bottom thread is calculated accurately according to the condition design algorithm of patterns and sewing materials, and the sewing is paused when the bottom thread is basically exhausted, so that the waste of the bottom thread is effectively avoided.

disclosure of Invention

The application provides a sewing pause method and device based on bottom line monitoring, electronic equipment and a storage medium, which are matched with the existing bottom line monitoring signal, can realize sewing pause again when the bottom line is basically exhausted, and effectively avoid waste of the bottom line.

In a first aspect, a method of pausing sewing based on bobbin thread monitoring, comprising:

Obtaining the bottom line consumption of each sewing section;

And if the bottom thread monitoring signal is received, acquiring a sewing pause position according to the bottom thread consumption of the sewing section.

Further, the bottom thread usage of the sewing section comprises the bottom thread usage of each needle point included in the sewing section and the trimming length of the sewing section.

Further, the bottom line of the needle point is used byDetermining, wherein x and y are the abscissa and the ordinate of the needle point, and H is the thickness of the sewing material; the trimming length of the sewing section comprises a trimming starting length and a trimming ending length.

Further, obtaining a sewing pause position according to the bottom thread usage of the sewing section includes:

(1) judging whether the current sewing section is the last section of the current pattern when the bottom line monitoring signal is received, if so, taking the last needle point of the current sewing section as a sewing pause position, and if not, executing the step (2);

(2) judging whether the residual bottom thread amount of the current sewing section is not less than the preset residual bottom thread amount or not, if so, taking the last needle point of the current sewing section as a sewing pause position, and if not, executing the step (3);

(3) Traversing each subsequent sewing section from the next sewing section of the current sewing section to the last sewing section of the current pattern, accumulating the residual bottom thread amount of the current sewing section and the total bottom thread amount of each subsequent sewing section, if the accumulated value is larger than the preset residual bottom thread amount when a certain subsequent sewing section is accumulated, determining the first needle point of the certain subsequent sewing section as a sewing pause position, otherwise, determining the last needle point of the last sewing section of the current pattern as the sewing pause position.

Furthermore, the remaining bottom thread usage of the sewing section is the sum of the summed bottom thread usage of each needle point from the current needle point of the sewing section to the last needle point of the sewing section and the summed trimming length corresponding to the last needle point of the sewing section from the current needle point of the sewing section, and the total bottom thread usage of the sewing section is the sum of the summed bottom thread usage of all the needle points of the sewing section and the summed trimming length of the sewing section.

further, the method further comprises:

And obtaining the residual sewing time corresponding to the time from the receiving of the bottom thread monitoring signal to the time of suspending sewing.

Further, the remaining sewing time is set byDetermination of where M₁For the number of needles corresponding to the time from receipt of the bobbin thread monitoring signal to the time of suspending sewing, S₁The rotation speed of the main shaft of the sewing equipment, T is the time required by one-time thread cutting of the sewing equipment, M₂The number of thread trimming times corresponding to the time from the receipt of the bottom thread monitoring signal to the time of the sewing pause, F the idle length corresponding to the time from the receipt of the bottom thread monitoring signal to the time of the sewing pause, S₂The idle feeding speed of the sewing equipment.

In a second aspect, the present application provides a sewing pause device based on bobbin thread monitoring, comprising: a bottom thread usage obtaining device and a sewing pause position obtaining device; the bottom thread usage obtaining device is used for obtaining the bottom thread usage of each sewing section; the sewing pause position acquisition device is used for acquiring a sewing pause position according to the bottom thread amount of the sewing section if receiving the bottom thread monitoring signal.

In a third aspect, the present application provides an electronic device comprising a processor and a memory; the memory is used for storing computer instructions; the processor is configured to execute the computer instructions stored in the memory to enable the electronic device to execute the bobbin thread monitoring-based sewing pause method according to any one of the first aspect.

In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program which, when executed, implements the bobbin thread monitoring-based suspended sewing method according to any one of the first aspect.

According to the sewing pause method and device based on the bottom thread monitoring, the electronic equipment and the storage medium, on the basis of the existing bottom thread monitoring technology, a simpler and accurate algorithm is designed to calculate the consumption of the bottom thread, sewing is paused when the bottom thread is basically exhausted, and waste of the bottom thread can be effectively avoided.

Drawings

For a clearer explanation of the technical solutions in the present application or the prior art, the drawings used for describing the present application or the prior art are briefly introduced. For a person skilled in the art, other figures can also be derived from these figures without inventive exercise.

Fig. 1 is a flowchart of a sewing pause method based on bottom line monitoring according to an embodiment of the present application.

FIG. 2 is a flowchart illustrating two methods for obtaining a sewing pause position according to the amount of the bottom thread of the sewing section according to the embodiment of the present application.

FIG. 3 is a flowchart of a third sewing pause method based on bottom line monitoring according to the embodiment of the present application.

fig. 4 is a schematic view of a fourth sewing pause device based on bottom line monitoring according to an embodiment of the present application.

fig. 5 is a schematic diagram of a hardware structure of a fifth electronic device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described in detail and completely with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection granted by the present application.

The terms "first," "second," "third," and the like in the claims, the description, and the drawings of the specification, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, but rather the terms "first," "second," "third," and the like may be used interchangeably without affecting the semantic accuracy. Moreover, the terms "comprises," "comprising," "includes," "including," "has," "having," and any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical scheme is suitable for the technical field of sewing. The pattern is a data file containing sewing related data and capable of being identified by sewing equipment. The needle points can be considered as the smallest units of the pattern, each corresponding to a particular sewing operation. The sewing section is a section of sewing data with a plurality of needle points in the pattern, and the sewing section can generate stitches on the sewing material. It will be apparent that one pattern may contain one or more stitching sections. Generally, the sewing section starts from the beginning of sewing and ends with thread trimming, that is, the last needle point of the sewing section corresponds to the thread trimming operation and each sewing section corresponds to only one thread trimming operation. In some special cases, however, there are multiple thread cuts in a section of the sewn seam, and the cut is marked in the design with a code in a set format called the "cut code". The sewing material is driven to a specified position by a feeding mechanism/cloth feeding mechanism of the empty feeding finger sewing equipment, a main shaft of the sewing machine does not rotate and a machine needle does not move during the empty feeding, and a bottom thread is not consumed. The application of the suspended sewing means that the bobbin needs to be replaced due to the depletion of the bottom thread to cause the temporary stop of the sewing, and the sewing equipment can continue to sew after the bobbin is replaced usually.