Automatic sleeve stitching method, automatic sleeve stitching machine and readable storage medium

Abstract

The invention discloses an automatic sleeve stitching method, an automatic sleeve stitching machine and a readable storage medium, and relates to the technical field of textile sewing. The automatic sleeve stitching method comprises the following steps: setting a sewing pattern, judging a sewing type, if the sewing type is a cylindrical sleeve, executing a cylindrical sleeve process, and if the sewing type is an unfolded sleeve, executing an unfolded sleeve process; the cylindrical sleeve process comprises a cylindrical sleeve sewing sub-process and a cylindrical sleeve edge aligning sub-process, the cylindrical sleeve edge aligning sub-process and the cylindrical sleeve sewing sub-process are executed at the same time, and the cylindrical sleeve edge aligning sub-process comprises the steps that two pieces of cloth are separated, and the edges of the two pieces of cloth are detected and aligned; repeating the previous step until the segmentation point of the last segment is sewn, pausing sewing, and executing the next step; the two pieces of cloth are attached, and the edges of the two pieces of cloth are detected and aligned at the same time; and repeating the previous step until the sewing of the cylindrical sleeve is completed. According to the automatic sleeve stitching method, sewing of the unfolded sleeve and the cylindrical sleeve can be completed, and the automation degree and the intelligence degree of sleeve stitching are improved.

Description

Technical Field

[0001] The present application relates to the technical field of textile sewing, and in particular to an automatic sleeve sewing method, an automatic sleeve sewing machine, and a readable storage medium. Background Art

[0002] In the sewing of clothing, the process of making sleeves is usually involved. In garment factories, making sleeves is generally regarded as a Class A process. Compared with ordinary processes, it is more difficult to operate and has higher quality requirements.

[0003] The current sleeve sewing method has not been completely skill-free, so it is impossible to standardize and automate the process. The difficulty of the sleeve sewing process is reflected in two aspects. The first is the edge alignment. The shape of the sleeve piece and the garment piece is quite different and irregular, but the edges are required to be aligned and there are no wrinkles on the seams. The second is the sewing position. The length of the sleeve edge is longer than the edge of the garment piece, but it is required to be aligned after the beginning and the end are sewn. The current sleeve sewing method has a low degree of automation and intelligence. In automated production, although it can meet the sewing process of unfolded sleeves to a certain extent, it cannot meet the sewing process of cylindrical sleeves, and the sewing process has higher requirements for the edge alignment and sewing position. Summary of the invention

[0004] The purpose of the present application is to provide an automatic sleeve sewing method and an automatic sleeve sewing machine, and a readable storage medium, which can complete the sewing of unfolded sleeves and cylindrical sleeves, thereby improving the automation and intelligence of sleeve sewing.

[0005] To achieve the above object, the present application provides an automatic sleeve sewing method, comprising:

[0006] Set the sewing pattern and determine whether the sewing type is cylindrical sleeve or spread sleeve. If the sewing type is cylindrical sleeve, execute the cylindrical sleeve process; if the sewing type is spread sleeve, execute the spread sleeve process;

[0007] The cylindrical sleeve process includes a cylindrical sleeve sewing sub-process and a cylindrical sleeve edge alignment sub-process, and the cylindrical sleeve edge alignment sub-process is executed simultaneously with the cylindrical sleeve sewing sub-process. The cylindrical sleeve edge alignment sub-process includes: separating two pieces of fabric, respectively detecting and aligning the edges of the two pieces of fabric; repeating the previous step until the segmentation point of the last section is sewn, pausing the sewing, and executing the next step; sticking the two pieces of fabric together, and detecting and aligning the edges of the two pieces of fabric at the same time; repeating the previous step until the sewing of the cylindrical sleeve is completed;

[0008] The unfolding sleeve process includes an unfolding sleeve sewing sub-process and an unfolding sleeve edge alignment sub-process, and the unfolding sleeve edge alignment sub-process is executed simultaneously with the unfolding sleeve sewing sub-process. The unfolding sleeve edge alignment sub-process includes: separating two pieces of fabric, detecting and aligning the edges of the two pieces of fabric respectively; repeating the previous step until the sewing of the unfolded sleeve is completed.

[0009] In some embodiments, the steps of detecting and aligning the edges of the two pieces of fabric respectively include:

[0010] The upper edge position is detected by an upper edge sensor;

[0011] If there is upper fabric at the upper edge-matching position, the upper fabric is adjusted in a positive direction so that the edge of the upper fabric moves to the upper edge-matching position and then faces the rear edge; if there is no upper fabric at the upper edge-matching position, the upper fabric is adjusted in a negative direction so that the edge of the upper fabric moves to the upper edge-matching position and then faces the rear edge;

[0012] The position of the lower opposite side is detected by a lower opposite side sensor;

[0013] If there is lower fabric at the lower opposite edge position, the lower fabric is adjusted in a positive direction so that the edge of the lower fabric moves to the lower opposite edge position to the rear opposite edge; if there is no lower fabric at the lower opposite edge position, the lower fabric is adjusted in a negative direction so that the edge of the lower fabric moves to the lower opposite edge position to the rear opposite edge.

[0014] In some embodiments, the step of simultaneously detecting and aligning the edges of the two pieces of fabric includes:

[0015] The upper edge position is detected by an upper edge sensor;

[0016] If there are upper fabrics and lower fabrics at the upper edge-to-edge position, the edges of the upper fabrics and lower fabrics are positively adjusted to move to the upper edge-to-edge position for rear edge-to-edge; if there are no upper fabrics and lower fabrics at the upper edge-to-edge position, the upper fabrics and lower fabrics are negatively adjusted to move to the upper edge-to-edge position for rear edge-to-edge.

[0017] In some embodiments, the step of separating the two pieces of fabric includes:

[0018] The two pieces of fabric are separated by a spacer assembly, the upper fabric is pressed and moved by an upper side-to-side assembly on the upper side of the spacer assembly, and the lower fabric is pressed and moved by a lower side-to-side assembly on the lower side of the spacer assembly;

[0019] The step of laminating the two pieces of fabric comprises:

[0020] The spacer assembly is controlled to separate from the upper and lower side assemblies, and the upper and lower side assemblies are controlled to press and move the fitted upper and lower fabrics.

[0021] In some embodiments, after the step of separating the two pieces of fabric, the following steps are performed:

[0022] The upper deviation position is detected by the upper deviation correction sensor;

[0023] If there is upper fabric at the upper offset position, the upper fabric is adjusted in a positive direction so that the edge of the upper fabric moves to the upper offset position and then corrects the deviation; if there is no upper fabric at the upper offset position, the upper fabric is adjusted in a negative direction so that the edge of the upper fabric moves to the upper offset position and then corrects the deviation;

[0024] The lower deviation position is detected by the lower deviation correction sensor;

[0025] If there is lower fabric at the lower offset position, the lower fabric is adjusted in a positive direction so that the edge of the lower fabric moves to the lower offset position and then corrects the deviation; if there is no lower fabric at the lower offset position, the lower fabric is adjusted in a negative direction so that the edge of the lower fabric moves to the lower offset position and then corrects the deviation.

[0026] In some embodiments, before the step of attaching the two pieces of fabric together, the process includes:

[0027] Adjust the positions of the upper and lower edge-to-edge components on the fabric to be the same, and control the movements of the upper and lower edge-to-edge components to be synchronized.

[0028] In some embodiments, the cylindrical sleeve sewing sub-process includes: setting feeding parameters according to the pattern and sewing; judging whether there is a sewing pause signal, if not, repeating the previous step, if yes, executing the next step; sewing pause, judging whether there is a sewing continuation signal, if not, repeating this step, if yes, executing the next step; sewing continues, judging whether sewing is completed, if not, repeating this step, if completed, executing the next step; sewing ends;

[0029] The sleeve unfolding sewing sub-process comprises: setting feeding parameters according to the pattern and sewing; judging whether sewing is completed, if not completed, repeating the previous step, if completed, executing the next step; and finishing sewing.

[0030] In some embodiments, the cylindrical sleeve process and the unfolded sleeve process also include a feeding force control sub-process, and the feeding force control sub-process is executed simultaneously with the corresponding sewing sub-process. The feeding force control sub-process includes: controlling the degree of compression of the upper and lower side components on the fabric, and adjusting the feeding force of the fabric.

[0031] The present application also provides an automatic sleeve-sewing machine, which is suitable for the above-mentioned automatic sleeve-sewing method. The automatic sleeve-sewing machine includes a sewing machine body, an automatic edge-aligning mechanism, an edge-aligning detection mechanism, a deviation-correcting detection mechanism and an auxiliary cloth-supporting wheel mechanism. The sewing machine body includes a machine needle and a feeding mechanism for feeding upper fabric and lower fabric to the machine needle for sewing. The edge-aligning detection mechanism is used to detect the edge-aligning condition of the fabric, the deviation-correcting detection mechanism is used to detect the offset condition of the fabric, the automatic edge-aligning mechanism is used to control the edge-aligning condition of the fabric and adjust the excess fabric according to the offset condition, the automatic edge-aligning mechanism is also used to adjust the fabric feeding force, and the auxiliary cloth-supporting wheel mechanism is used to assist in flipping the fabric with excess length other than sewing.

[0032] The present application also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the processor executes the steps of the above method.

[0033] Compared with the above background technology, the automatic sleeve sewing method provided by the present application mainly includes the following steps: S1, setting the sewing pattern, judging whether the sewing type is a cylindrical sleeve or an unfolded sleeve, if the sewing type is a cylindrical sleeve, executing the cylindrical sleeve process, if the sewing type is an unfolded sleeve, executing the unfolded sleeve process; S2, the cylindrical sleeve process includes a cylindrical sleeve sewing sub-process and a cylindrical sleeve edge-matching sub-process, the cylindrical sleeve edge-matching sub-process and the cylindrical sleeve sewing sub-process are executed simultaneously, and the cylindrical sleeve edge-matching sub-process includes: separating two pieces of fabric, detecting and Align the edges; repeat the previous step until the segmentation point of the last segment is reached, and then suspend sewing and execute the next step; fit the two pieces of fabric together, and at the same time detect and align the edges of the two pieces of fabric; repeat the previous step until the sewing of the cylindrical sleeve is completed; S3, the sleeve unfolding process includes a sleeve unfolding sewing sub-process and a sleeve unfolding edge aligning sub-process, and the sleeve unfolding edge aligning sub-process and the sleeve unfolding sewing sub-process are executed simultaneously, and the sleeve unfolding edge aligning sub-process includes: separating the two pieces of fabric, and detecting and aligning the edges of the two pieces of fabric respectively; repeat the previous step until the sewing of the sleeve is completed.

[0034] The automatic sleeve-sewing method requires the control of the automatic sleeve-sewing machine to realize automatic sewing and automatic edge alignment. The automatic sleeve-sewing machine includes a sewing machine body and an automatic edge alignment mechanism. Based on the automatic sleeve-sewing method, the sewing machine body is controlled to sew fabric, and the automatic edge alignment mechanism is controlled to align the fabric before sewing. In S1, the sewing machine body is controlled to set the sewing pattern, and the sewing machine body is controlled to determine whether the sewing type is a cylindrical sleeve or an unfolded sleeve. If the sewing type is a cylindrical sleeve, the cylindrical sleeve process is executed, and if the sewing type is an unfolded sleeve, the unfolded sleeve process is executed. In S2, the sewing machine body and the automatic edge alignment mechanism are controlled to execute the cylindrical sleeve process, including simultaneously controlling the sewing machine body to execute the cylindrical sleeve sewing sub-process and controlling the automatic edge alignment mechanism to execute the cylindrical sleeve edge alignment sub-process. For controlling the automatic edge alignment mechanism to execute the cylindrical sleeve edge alignment sub-process, the automatic edge alignment mechanism is controlled to separate the two pieces of fabric first, and then controlled to detect the edges of the two pieces of fabric, and the edges of the two pieces of fabric are controlled to be aligned according to the detection results; repeat the previous step, control the automatic edge alignment mechanism to align the fabric until the sewing is paused at the segmentation point of the last segment, and execute the next step; control the automatic edge alignment mechanism so that the two pieces of fabric are no longer separated, but the two pieces of fabric are attached, and the automatic edge alignment mechanism is controlled to detect the edges of the two pieces of fabric at the same time, and the edges of the two pieces of fabric are controlled to be aligned according to the detection results; repeat the previous step, control the automatic edge alignment mechanism to align the fabric until the cylindrical sleeve is sewn. In S3, the sewing machine body and the automatic edge alignment mechanism are controlled to execute the sleeve unfolding process, including simultaneously controlling the sewing machine body to execute the sleeve unfolding sewing sub-process and controlling the automatic edge alignment mechanism to execute the sleeve unfolding edge alignment sub-process. For controlling the automatic edge-aligning mechanism to execute the unfolded sleeve edge-aligning sub-process, the automatic edge-aligning mechanism is controlled to separate the two pieces of fabric first, and then controlled to detect the edges of the two pieces of fabric, and controlled to align the edges of the two pieces of fabric according to the detection result; repeat the previous step, control the automatic edge-aligning mechanism to align the fabrics, until the sewing of the unfolded sleeve is completed.

[0035] The automatic sleeve sewing method can complete the sewing of the unfolded sleeve and the cylindrical sleeve, thereby improving the automation and intelligence level of the sleeve sewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0037] Figure 1 A flowchart of the automatic sleeve sewing method provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the structure of an automatic sleeve sewing machine provided in an embodiment of the present application;

[0039] Figure 3 for Figure 2 The structural diagram of the automatic edge alignment mechanism;

[0040] Figure 4 for Figure 2 Schematic diagram of the location of the sewing machine body and sensors;

[0041] Figure 5 A control flow chart of the automatic sleeve sewing machine provided in an embodiment of the present application;

[0042] Figure 6 A flow chart of the cylindrical sleeve edge alignment provided in the embodiment of the present application;

[0043] Figure 7 A flow chart of unfolding sleeve opposite sides provided in an embodiment of the present application;

[0044] Figure 8 A flowchart of the deviation correction of the upper cloth provided in the embodiment of the present application;

[0045] Fig. 9 A flowchart of the deviation correction of the lower cloth provided in the embodiment of the present application;

[0046] Fig.10 A flow chart of the edge alignment of the upper fabric provided in the embodiment of the present application;

[0047] Fig.11 A flow chart of the side alignment of the lower fabric provided in the embodiment of the present application;

[0048] Fig.12 A flow chart of the edge alignment of the upper and lower fabrics provided in the embodiment of the present application.

[0049] in:

[0050] 1-upper roller, 2-lower roller, 3-upper photoelectric sensor, 4-lower photoelectric sensor, 5-clamp baffle, 6-baffle cylinder, 7-upper lifting cylinder, 8-lower lifting cylinder, 9-upper driver, 10-lower driver, 11-upper roller motor, 12-lower roller motor, 13-upper screw motor, 14-lower screw motor, 15-upper optical fiber sensor, 16-lower optical fiber sensor, 17-right feeding roller, 18-right feeding motor, 19-left feeding roller, 20-anti-pleat pressure plate, 21-conical needle plate, 22-sewing machine body, 23-automatic edge alignment mechanism, 24-frame, 25-auxiliary cloth support wheel mechanism. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0053] At present, sleeve sewing is a Class A process that relies on skilled workers to complete, and has high labor requirements. Existing products on the market are aimed at simplifying manual operations to a certain extent, but the technical level of workers will still greatly affect the quality and efficiency of sleeve sewing. The existing models have not achieved complete de-skilling, so it is impossible to standardize and automate this process. The difficulty of sleeve sewing technology is reflected in two aspects. One is the edge alignment. The shape of the sleeve piece and the garment piece is quite different and irregular, but the edges are required to be aligned and there are no wrinkles on the seams; the other is the feeding position. The length of the sleeve edge is greater than the edge of the garment piece, but it is required to be aligned after sewing the head and tail. The feeding position can be controlled by feeding the upper and lower layers separately through the feeding mechanism of the sewing machine; the edge alignment can also be achieved by an adaptable automatic edge alignment mechanism. However, these two points alone cannot complete a high-quality sleeve sewing process.

[0054] In order to solve the above technical problems, the present application provides an automatic sleeve sewing method, which can realize automatic fabric edge alignment while realizing automatic fabric sewing. On the basis of being able to complete the complex situation of edge alignment in the sleeve sewing process, it can also adapt well to other simple stitching processes.

[0055] Please refer to Figure 1 , Figure 1 A flowchart of an automatic sleeve sewing method provided in an embodiment of the present application.

[0056] like Figure 1As shown, the automatic sleeve sewing method mainly includes the following steps: S1, setting the sewing pattern, judging whether the sewing type is a cylindrical sleeve or an unfolded sleeve, if the sewing type is a cylindrical sleeve, executing the cylindrical sleeve process, if the sewing type is an unfolded sleeve, executing the unfolded sleeve process; S2, the cylindrical sleeve process includes a cylindrical sleeve sewing sub-process and a cylindrical sleeve edge alignment sub-process, the cylindrical sleeve edge alignment sub-process and the cylindrical sleeve sewing sub-process are executed simultaneously, and the cylindrical sleeve edge alignment sub-process includes: separating two pieces of fabric, detecting and aligning the edges of the two pieces of fabric respectively; repeating the previous step. Step 1: suspend sewing when the segmentation point of the last segment is sewn, and execute the next step; put the two pieces of fabric together, and detect and align the edges of the two pieces of fabric at the same time; repeat the previous step until the sewing of the cylindrical sleeve is completed; S3, the sleeve unfolding process includes a sleeve unfolding sewing sub-process and a sleeve unfolding edge aligning sub-process, and the sleeve unfolding edge aligning sub-process and the sleeve unfolding sewing sub-process are executed simultaneously. The sleeve unfolding edge aligning sub-process includes: separating the two pieces of fabric, and detecting and aligning the edges of the two pieces of fabric respectively; repeating the previous step until the sewing of the sleeve is completed.

[0057] The automatic sleeve sewing method requires the automatic sleeve sewing machine to be controlled to realize automatic sewing and automatic edge alignment. The automatic sleeve sewing machine includes a sewing machine body 22 and an automatic edge alignment mechanism 23. Based on the automatic sleeve sewing method, the sewing machine body 22 is controlled to sew fabric, and the automatic edge alignment mechanism 23 is controlled to align the fabric before sewing. In S1, the sewing machine body 22 is controlled to set the sewing pattern, and the sewing machine body 22 is controlled to determine whether the sewing type is a cylindrical sleeve or an unfolded sleeve. If the sewing type is a cylindrical sleeve, the cylindrical sleeve process is executed, and if the sewing type is an unfolded sleeve, the unfolded sleeve process is executed. In S2, the sewing machine body 22 and the automatic edge alignment mechanism 23 are controlled to execute the cylindrical sleeve process, including simultaneously controlling the sewing machine body 22 to execute the cylindrical sleeve sewing sub-process and controlling the automatic edge alignment mechanism 23 to execute the cylindrical sleeve edge alignment sub-process. For controlling the automatic edge alignment mechanism 23 to execute the cylindrical sleeve edge alignment sub-process, the automatic edge alignment mechanism 23 is controlled to separate the two pieces of fabric first, and then controlled to detect the edges of the two pieces of fabric, and the edges of the two pieces of fabric are controlled to be aligned according to the detection result; repeat the previous step, control the automatic edge alignment mechanism 23 to align the fabric, until the sewing is suspended at the segmentation point of the last section, and execute the next step; control the automatic edge alignment mechanism 23 so that the two pieces of fabric are no longer separated, but the two pieces of fabric are attached, and the automatic edge alignment mechanism 23 is controlled to detect the edges of the two pieces of fabric at the same time, and the edges of the two pieces of fabric are controlled to be aligned according to the detection result; repeat the previous step, control the automatic edge alignment mechanism 23 to align the fabric until the cylindrical sleeve is sewn. In S3, the sewing machine body 22 and the automatic edge alignment mechanism 23 are controlled to execute the sleeve unfolding process, including simultaneously controlling the sewing machine body 22 to execute the sleeve unfolding sewing sub-process and controlling the automatic edge alignment mechanism 23 to execute the sleeve unfolding sub-process. For controlling the automatic edge-aligning mechanism 23 to execute the unfolded sleeve edge-aligning sub-process, the automatic edge-aligning mechanism 23 is controlled to separate the two pieces of cloth first, and then controlled to detect the edges of the two pieces of cloth, and controlled to align the edges of the two pieces of cloth according to the detection result; repeat the previous step, control the automatic edge-aligning mechanism 23 to align the edges of the cloth, until the sewing of the unfolded sleeve is completed.

[0058] The automatic sleeve sewing method can complete the sewing of the unfolded sleeve and the cylindrical sleeve, thereby improving the automation and intelligence level of the sleeve sewing.

[0059] Please refer to Figure 2 , Figure 2 A schematic diagram of the structure of an automatic sleeve sewing machine provided in an embodiment of the present application.

[0060] like Figure 2 As shown, the present application also provides an automatic sleeve sewing machine, which is suitable for the above-mentioned automatic sleeve sewing method. The automatic sleeve sewing machine mainly includes a sewing machine body 22 and an automatic edge-aligning mechanism 23. The sewing machine body 22 and the automatic edge-aligning mechanism 23 are installed on a frame 24, and the automatic edge-aligning mechanism 23 is located on one side of the sewing machine body 22.

[0061] As for the sewing machine body 22, the sewing machine body 22 mainly includes a machine needle and a feeding mechanism for feeding the upper cloth and the lower cloth to the machine needle for sewing. As for the automatic edge alignment mechanism 23, the automatic edge alignment mechanism 23 controls the cloth edge alignment.

[0062] Please refer to Figure 3 and Figure 4 , Figure 3 for Figure 2 The structural diagram of the automatic edge alignment mechanism. Figure 4 for Figure 2 Schematic diagram of the location of the sewing machine body and sensors.

[0063] like Figure 4 As shown, for the sewing machine body 22, the feeding mechanism includes a right feeding roller 17, a right feeding motor 18, a left feeding roller 19, a left feeding motor, a lower feeding roller and a lower feeding motor. The right feeding roller 17 is driven by the right feeding motor 18, the left feeding roller 19 is driven by the left feeding motor, and the lower feeding roller is driven by the lower feeding motor. The lower feeding roller is located at the lower side of the right feeding roller 17 and the left feeding roller 19. When in use, the right feeding roller 17 and the left feeding roller 19 are used to realize the sewing feeding of the upper fabric, the right feeding roller 17 and the left feeding roller 19 realize differential, and the lower feeding roller is used to realize the sewing feeding of the lower fabric. In one case, the sewing machine body 22 feeds the upper fabric and the lower fabric respectively through the feeding mechanism, and the feeding force of the fabric can be controlled by differential.

[0064] Furthermore, the automatic sleeve sewing machine also includes an edge detection mechanism, which is used to detect the edge alignment of the edge of the upper fabric and the lower fabric at the edge alignment position on the side of the needle, and the automatic edge alignment mechanism 23 controls the fabric alignment according to the edge alignment. As for the edge detection mechanism, the edge detection mechanism includes an upper edge sensor and a lower edge sensor, which are located on the side of the needle of the sewing machine, and the upper edge sensor is used to detect the upper fabric at the upper edge alignment position on the side of the needle, and the lower edge sensor is used to detect the lower fabric at the lower edge alignment position on the side of the needle.

[0065] In this embodiment, the upper edge sensor detects the upper fabric, and the lower edge sensor detects the lower fabric. The two are independent and do not interfere with each other. The detection method of the edge sensor is to detect a fixed position, that is, to detect whether there is fabric at the edge position. Such a setting is easy to implement and has high detection reliability.

[0066] In a specific embodiment, in S2 and S3 of the method, the steps of detecting and aligning the edges of the two pieces of fabrics respectively include: detecting the upper edge alignment position by an upper edge alignment sensor; if there is an upper fabric at the upper edge alignment position, positively adjusting the upper fabric so that the edge of the upper fabric moves to the upper edge alignment position and then aligns; if there is no upper fabric at the upper edge alignment position, negatively adjusting the upper fabric so that the edge of the upper fabric moves to the upper edge alignment position and then aligns. In S2 and S3 of the method, the steps of detecting and aligning the edges of the two pieces of fabrics respectively also include: detecting the lower edge alignment position by a lower edge alignment sensor; if there is a lower fabric at the lower edge alignment position, positively adjusting the lower fabric so that the edge of the lower fabric moves to the lower edge alignment position and then aligns; if there is no lower fabric at the lower edge alignment position, negatively adjusting the lower fabric so that the edge of the lower fabric moves to the lower edge alignment position and then aligns. By repeatedly performing the above-mentioned edge detection, the edge of the upper fabric edge position is at the upper edge position, and the edge of the lower fabric edge position is at the lower edge position, and the upper and lower fabrics are automatically aligned.

[0067] In S2 of the method, the steps of simultaneously detecting and aligning the edges of two pieces of cloth include: detecting the upper edge alignment position by an upper edge alignment sensor; if there are upper cloth and lower cloth at the upper edge alignment position, positively adjusting the edges of the upper cloth and the lower cloth to move to the upper edge alignment position for rear aligning; if there are no upper cloth and lower cloth at the upper edge alignment position, negatively adjusting the upper cloth and the lower cloth to move the edges of the upper cloth and the lower cloth to the upper edge alignment position for rear aligning.

[0068] It should be noted that the difference between the separate detection of the opposite edges in S2 and S3 and the simultaneous detection of the opposite edges in S2 lies in whether the upper fabric and the lower fabric are separated or attached. When the upper fabric and the lower fabric are attached, the upper fabric and the lower fabric are attached as one and move together to align the edges, and there is no need to detect and align the edges separately, so only one of the upper edge sensor and the lower edge sensor needs to be selected. Because the upper edge sensor is preferably set closer to the needle, the upper edge sensor is selected here instead of the lower edge sensor.

[0069] Please continue to refer to Figure 3 As for the automatic edge-aligning mechanism 23, the automatic edge-aligning mechanism 23 moves the cloth in a manner of pressing the cloth. While the automatic edge-aligning mechanism 23 controls the edge alignment of the cloth (garment pieces, sleeve pieces), the feeding force can be controlled by controlling the degree of pressing the cloth (the size of the cloth tension).

[0070] Specifically, the automatic edge-aligning mechanism 23 mainly includes an upper edge-aligning assembly, a lower edge-aligning assembly and a spacer assembly. The spacer assembly is located between the upper edge-aligning assembly and the lower edge-aligning assembly. The spacer assembly can be separated from the upper edge-aligning assembly and the lower edge-aligning assembly. The degree of compression of the fabric by the upper edge-aligning assembly and the lower edge-aligning assembly is adjustable.

[0071] When in use, the sewing machine body 22 and the automatic edge alignment mechanism 23 change according to the type of sewing. In the process of the sewing machine body 22 sewing the cloth, the automatic edge alignment mechanism 23 aligns the cloth at the same time, and the degree of compression of the upper edge alignment component and the lower edge alignment component on the cloth is adjustable, thereby achieving adjustable cloth feeding. Before the separation of the material separation component, according to the detection information of the upper edge alignment sensor and the lower edge alignment sensor, the upper edge alignment component and the lower edge alignment component respectively move the corresponding cloth edges, that is, the upper edge alignment component and the lower edge alignment component move the corresponding cloth edges according to the corresponding cloth edge alignment situation; after the separation of the material separation component, according to the detection information of the upper edge alignment sensor, the upper edge alignment component and the lower edge alignment component jointly move the fitted cloth edges, at this time, the upper edge alignment component and the lower edge alignment component should have the same action position on the cloth, and the upper edge alignment component and the lower edge alignment component move synchronously.

[0072] When the sewing type is a cylindrical sleeve, the upper fabric and the lower fabric are first separated by the spacer assembly, the upper side assembly presses and moves the upper fabric on the upper side of the spacer assembly, and the lower side assembly presses and moves the lower fabric on the lower side of the spacer assembly, so that the upper fabric and the lower fabric are moved to the rear side respectively; when sewing the segmentation point of the last section, the spacer assembly is separated from the upper side assembly and the lower side assembly, and the upper fabric and the lower fabric are bonded, and the bonded upper fabric and the lower fabric are pressed and moved by the upper side assembly and the lower side assembly, so that the upper fabric and the lower fabric are moved to the rear side at the same time.

[0073] When the sewing type is unfolded sleeve, the upper fabric and the lower fabric are always separated by the spacer assembly, and the upper edge assembly and the lower edge assembly realize the upper fabric and the lower fabric to move and align the edges respectively.

[0074] In a specific embodiment, in S2 and S3 of the method, the step of separating the two pieces of cloth includes: separating the two pieces of cloth by a spacer assembly, at which time the cloth on the upper side of the spacer assembly is the upper cloth, and the cloth on the lower side of the spacer assembly is the lower cloth, and the upper cloth is pressed and moved to the opposite side position by an upper opposite side assembly on the upper side of the spacer assembly, and the lower cloth is pressed and moved to the opposite side position by a lower opposite side assembly on the lower side of the spacer assembly.

[0075] In S2 of the method, the step of bonding the two pieces of cloth includes: controlling the separation of the spacer assembly from the upper opposite side assembly and the lower opposite side assembly, at which time the two pieces of cloth are no longer separated, but the two pieces of cloth are bonded together, and controlling the upper opposite side assembly and the lower opposite side assembly to press and move the bonded upper and lower cloths.

[0076] In S2 of the method, before the step of attaching the two pieces of fabric together, the method includes: adjusting the action positions of the upper edge-to-edge assembly and the lower edge-to-edge assembly on the fabric to be the same, and controlling the upper edge-to-edge assembly and the lower edge-to-edge assembly to move synchronously.

[0077] In a specific embodiment, in S2 and S3 of the method, the cylindrical sleeve process and the unfolded sleeve process also include a feeding force control sub-process, which is executed simultaneously with the corresponding sewing sub-process. The feeding force control sub-process includes: controlling the degree of compression of the upper and lower side components on the fabric, and adjusting the feeding force of the fabric.

[0078] The automatic sleeve sewing method takes into account both the cylindrical sleeve and the unfolded sleeve processes by controlling the changes of the spacer component. The cylindrical sleeve process satisfies the characteristic that the starting point and the end point of the sewing coincide, and the unfolded sleeve process satisfies the characteristic that the beginning and the end of the sewing line are disconnected. It can not only control the fabric edge by controlling the upper edge assembly and the lower edge assembly, but also control the fabric feeding. It improves the automation and intelligence of sleeve sewing and has strong adaptability to different patterns.

[0079] Exemplarily, the upper fabric is the garment piece, and the lower fabric is the sleeve piece. Before sewing the sleeve, the starting points of the upper fabric (garment piece) and the lower fabric (sleeve piece) are fixed to the machine needle; the upper fabric is fed by the right feed roller 17 and the left feed roller 19, and the lower fabric is fed by the lower feed roller, and the feeding method of the upper and lower fabrics is separate feeding of the upper and lower layers and upper layer differential; in coordination with the separate feeding of the upper and lower layers and upper layer differential, the upper fabric is placed in the upper side-to-side assembly, and the lower fabric is placed in the lower side-to-side assembly, and the upper side-to-side assembly and the lower side-to-side assembly realize the side-to-side alignment of the upper fabric and the lower fabric. When sewing the sleeve, the upper fabric and the lower fabric are driven by the upper side-to-side assembly and the lower side-to-side assembly to realize side-to-side alignment, and the upper fabric and the lower fabric after side-to-side alignment are fed into the machine needle by the feed rollers for sewing.

[0080] Furthermore, the automatic sleeve sewing machine also includes a deviation correction detection mechanism, which detects the deviation of the fabric, and the upper and lower edge alignment components of the automatic edge alignment mechanism 23 control the deviation correction of the fabric according to the deviation.

[0081] It should be noted that the deviation correction detection mechanism and the edge detection mechanism do not detect the same position of the edge of the fabric. The edge detection mechanism detects the edge of the fabric at the edge position, and the edge condition of the fabric is obtained through the detection of the edge detection mechanism. The upper and lower edge components move the fabric to align the edges; the deviation correction detection mechanism detects the edge of the fabric at the non-edge position, and the deviation of the fabric is obtained through the detection of the edge detection mechanism. The upper and lower edge components adjust the margin of the fabric at the pressing position.

[0082] In this embodiment, the deflection correction detection mechanism is located on both sides of the spacer assembly, and the detection position of the deflection correction detection mechanism is the pressing position of the upper and lower edge-to-edge assemblies on both sides of the spacer assembly on the fabric. The deflection correction detection mechanism directly detects the edge of the non-edge-to-edge position of the fabric, and then uses the position information of the edge of the non-edge-to-edge position of the fabric as the offset of the fabric, so that the detection of the fabric is timely, accurate and reliable. Correspondingly, the detection position of the edge-to-edge detection mechanism is close to the position of the needle, and the edge-to-edge detection mechanism directly detects the edge of the edge of the fabric, and then uses the position information of the edge of the edge of the fabric as the edge of the fabric, so that the detection of the fabric is timely, accurate and reliable.

[0083] Preferably, the deflection correction detection mechanism is installed on the upper edge assembly and the lower edge assembly. When the edge assembly moves, the deflection correction detection mechanism moves together with the edge assembly. The deflection correction detection mechanism uses the edge assembly as a reference object to detect the pressing position of the edge assembly and the cloth.

[0084] It should be noted that there are multiple control methods for the upper and lower edge alignment components to realize fabric edge alignment and fabric deviation correction. For example, the edge alignment component may directly receive information about the edge alignment and offset conditions and then move the fabric edge and adjust the fabric margin. Alternatively, the edge alignment component may receive information about the edge alignment and offset conditions and then move the fabric edge and adjust the fabric margin through an electronic control device, which should all fall within the scope of the description of this embodiment.

[0085] In some embodiments, the correction detection mechanism includes an upper correction sensor and a lower correction sensor, the upper correction sensor is used to detect the upper fabric on the upper side of the spacer assembly, and the lower correction sensor is used to detect the lower fabric on the lower side of the spacer assembly.

[0086] Exemplarily, the upper correction sensor is installed on the upper opposite side assembly, and the lower correction sensor is installed on the lower opposite side assembly. The upper correction sensor detects whether the excess of the upper fabric is located at the upper offset position, and the lower correction sensor detects whether the excess of the lower fabric is located at the lower offset position.

[0087] In this embodiment, the upper deflection correction sensor detects the upper fabric, and the lower deflection correction sensor detects the lower fabric. The two are independent and do not interfere with each other. The detection method of the deflection correction sensor is to detect the fixed position (the fixed position is based on the opposite edge component as the reference object, the fixed position is fixed relative to the opposite edge component, and the fixed position moves with the movement of the opposite edge component), that is, to detect the presence of fabric at the offset position. Such a setting is easy to implement and has high detection reliability.

[0088] In a specific embodiment, after the step of separating the two pieces of fabric in S2 and S3 of the method, the method further includes: detecting the upper offset position by an upper deviation correction sensor; if there is an upper fabric at the upper offset position, the upper fabric is positively adjusted so that the edge of the upper fabric moves to the upper offset position and then the deviation correction is performed; if there is no upper fabric at the upper offset position, the upper fabric is negatively adjusted so that the edge of the upper fabric moves to the upper offset position and then the deviation correction is performed. In S2 and S3 of the method, after the step of separating the two pieces of fabric, the method further includes: detecting the lower offset position by a lower deviation correction sensor; if there is a lower fabric at the lower offset position, the lower fabric is positively adjusted so that the edge of the lower fabric moves to the lower offset position and then the deviation correction is performed; if there is no lower fabric at the lower offset position, the lower fabric is negatively adjusted so that the edge of the lower fabric moves to the lower offset position and then the deviation correction is performed. By repeatedly performing the above deviation correction detection, the edge of the non-opposite side position of the upper fabric is at the upper offset position, and the edge of the non-opposite side position of the lower fabric is at the lower offset position, and the upper fabric and the lower fabric are automatically corrected.

[0089] Furthermore, the automatic sleeve sewing machine also includes an auxiliary cloth-supporting wheel mechanism 25. The auxiliary cloth-supporting wheel mechanism 25 and the automatic edge-aligning mechanism 23 are respectively located on the lateral side and the longitudinal side of the sewing machine body 22. The auxiliary cloth-supporting wheel mechanism 25 is used to assist in flipping the excess cloth other than sewing.

[0090] In this embodiment, the auxiliary cloth-supporting wheel mechanism 25 includes a rotatable cylinder, and the inner wall of the cylinder is provided with a barb. When in use, the excess length of the cloth except for sewing is placed in the cylinder. As the sewing proceeds, the sewing part of the cloth will move, and the cylinder can rotate synchronously with the sewing action. Under the action of the barb, the excess length of the cloth also moves, thereby relieving the kink between the sewing part of the cloth and the excess length of the cloth caused by the movement of the sewing part of the cloth, and preventing the cloth from twisting into a twisted shape. Among them, the fixing of the cloth by the barb is not fixed at all angles. The barb is set to bend in one direction. When the cylinder rotates in the direction opposite to the bending direction of the barb, the cloth will be hooked by the barb in the first half of the circle until the cloth rotates to a position close to the highest point, and the cloth is separated from the barb, thereby realizing the turning of the cloth.

[0091] It should be noted that there are many implementation schemes of the auxiliary cloth-supporting wheel mechanism 25. For example, on the one hand, it can be automatic (motor-driven), and on the other hand, it can be manual (manually driven), which should all fall within the scope of the description of this embodiment.

[0092] In some embodiments, the sewing machine body 22 further includes an anti-pleat plate 20 and a conical needle plate 21 , wherein the anti-pleat plate 20 is located on one side of the needle and the conical needle plate 21 is located below the anti-pleat plate 20 .

[0093] In this embodiment, the first end of the anti-pleat plate 20 is fixed to the upper head of the sewing machine body 22, and the second end of the anti-pleat plate 20 is used to contact the needle plate. The anti-pleat plate 20 is used to prevent the generation of wrinkles in the seam. When the original machine needle sews the seam, because the contact point between the feed mechanism and the needle plate is on the first side of the machine needle (equivalent to the inner side of the sewing), a V-shaped wrinkle is generated with the contact point as the center of the circle. The wrinkle spreads across the needle hole to the stop, so that the sewing seam is pressed on the wrinkle, resulting in wrinkles on the front of the shoulder of the upper sleeve; in this embodiment, by setting the anti-pleat plate 20, the contact point between the anti-pleat plate 20 and the needle plate is on the second side of the machine needle, and the V-shaped wrinkle will be generated with the contact point of the anti-pleat plate 20 as the center of the circle. Since the wrinkle is located between the seam and the stop, it is equivalent to the anti-pleat plate 20 pushing the wrinkle from the first side of the seam to the second side (equivalent to the outer side of the sewing), thereby avoiding the generation of obvious wrinkles.

[0094] The conical needle plate 21 is arranged at the lower head of the sewing machine body 22. The conical needle plate 21 is used for placing and fitting fabrics, and can change the stop of the sleeve piece from an arc to a straight line as much as possible, thereby reducing the difficulty of edge alignment during sewing and reducing the generation of edge wrinkles.

[0095] Please refer to Figure 5 , Figure 5 This is a control flow chart of the automatic sleeve sewing machine provided in an embodiment of the present application.

[0096] In a specific embodiment, the process of sewing and edging is described as follows.

[0097] Before sewing, the user sets the parameters related to the sewing pattern, fixes the starting point of the fabric at the needle of the sewing machine body 22, fixes the upper fabric between the upper opposite edge assembly and the spacer assembly, and fixes the lower fabric between the lower opposite edge assembly and the spacer assembly. Start the program to start sewing (the electronic control first reads the parameter information contained in the sewing pattern). At this time, there are two situations, namely, the unfolded sleeve and cylindrical sleeve modes, and the mode information is contained in the pattern.

[0098] The automatic edge alignment part in the two modes is different, but the sewing part is basically the same. After the sewing machine body 22 is started, the electronic control timely adjusts the speed of the right feeding motor 18 according to the segmentation of the pattern setting, thereby realizing the differential of the left feeding roller 19 and the right feeding roller 17, so that the seam can be controlled to turn to fit the edge shape of the cut piece to ensure the flatness of the fabric after sewing. In addition, an anti-wrinkle pressure plate 20 is added to eliminate the wrinkles of the fabric near the seam caused by the edge alignment action; during the sewing process, the fabric of the sewing part will rotate as the material is fed backward, so an auxiliary cloth-supporting wheel mechanism 25 is added to assist the excess fabric to flip and prevent the fabric from wrinkling.

[0099] To sew the unfolded sleeve, the sewing machine is started, and the feeding mechanism of the sewing machine body 22 starts to sew the fabric together with the sewing mechanism at the speed set by the pattern. The specific unfolded sleeve sewing sub-process includes: setting the feeding parameters according to the pattern and sewing; judging whether the sewing is completed, if not, repeating the previous step, if completed, executing the next step; and finishing the sewing. While the unfolded sleeve sewing sub-process is being executed, the unfolded sleeve opposite side sub-process (the unfolded sleeve opposite side process shown in the figure) is also executed.

[0100] To sew the cylindrical sleeve, the sewing machine is started, and the feeding mechanism of the sewing machine body 22 starts to sew the fabric together with the sewing mechanism at the speed set by the program. The specific cylindrical sleeve sewing sub-process includes: setting the feeding parameters according to the pattern and sewing; judging whether there is a sewing pause signal, if not, repeating the previous step, if yes, executing the next step; sewing pause, judging whether there is a sewing continuation signal, if not, repeating this step, if yes, executing the next step; sewing continues, judging whether the sewing is completed, if not, repeating this step, if completed, executing the next step; sewing ends. While the cylindrical sleeve sewing sub-process is being executed, the cylindrical sleeve edge alignment sub-process (the cylindrical sleeve edge alignment process shown in the figure) is also executed.

[0101] Furthermore, for the automatic sleeve sewing machine, the upper side assembly and the lower side assembly are mirror images of the spacer assembly, and both the upper side assembly and the lower side assembly include a material pressing subassembly, a material moving subassembly and a lifting subassembly.

[0102] In this embodiment, the pressing subassembly is used to press the cloth, the moving subassembly is used to drive the pressing subassembly to move to control the opposite sides of the cloth, and the lifting subassembly is used to drive the pressing subassembly to lift and lower to adjust the degree of pressing on the cloth.

[0103] It should be noted that the present embodiment only provides an edge alignment component that can implement the above-mentioned technical solution, and does not limit the above-mentioned technical solution to be implemented only through the edge alignment component; for example, the edge alignment component can also adopt the form of a clamp to clamp the fabric, and the clamp moves with the sewing feed during the sewing process, and releases the fabric after approaching the needle and retracts it to clamp it, completing the edge alignment and sewing in reciprocating segments; for other edge alignment components, they should also fall within the scope of description of this embodiment.

[0104] It should be noted that the direction in which the material moving subassembly drives the material pressing subassembly and the fabric to move is different from the direction in which the sewing machine body 22 feeds the fabric. Figure 2 For example, the automatic edge-aligning mechanism 23 is located on one side of the sewing machine body 22, and the automatic edge-aligning mechanism 23 is arranged parallel to the sewing machine body 22. The direction of sewing feeding of the sewing machine body 22 is the front-to-back direction as shown in the figure, and the direction in which the material shifting subassembly drives the material pressing subassembly and the fabric to move is the left-to-right direction as shown in the figure. At this time, the fabric is fed in the front-to-back direction, and at the same time, the fabric is also aligned in the left-to-right direction, and the fabric is also corrected in the left-to-right direction.

[0105] Exemplarily, the material moving sub-assembly includes a screw motor on which a slider is mounted; the lifting sub-assembly includes a lifting cylinder, a fixed end of the lifting cylinder is connected to the slider, and an actuating end of the lifting cylinder is connected to the material pressing sub-assembly.

[0106] like Figure 3 As shown, for the material moving subassembly of the upper edge-matching assembly, there are an upper screw motor 13 and an upper driver 9 matched with the upper screw motor 13; for the material moving subassembly of the lower edge-matching assembly, there are a lower screw motor 14 and a lower driver 10 matched with the lower screw motor 14. When in use, the upper and lower fabrics are moved (left and right directions in the figure) by the upper screw motor 13 and the lower screw motor 14 to perform edge matching of the fabrics during sewing.

[0107] Exemplarily, the pressing subassembly includes a roller and a roller motor that drives the roller to rotate, the roller is used to press the cloth, and the roller motor controls the rotation of the roller to adjust the excess of the cloth on the roller to achieve deviation correction, and the direction of the cloth deviation correction is the same as the direction of the opposite side of the cloth.

[0108] like Figure 3 As shown, for the pressing subassembly of the upper opposite side assembly, there are an upper roller 1 and an upper roller motor 11; for the pressing subassembly of the lower opposite side assembly, there are a lower roller 2 and a lower roller motor 12. When in use, the upper roller motor 11 controls the rotation of the upper roller 1 and the lower roller motor 12 controls the rotation of the lower roller 2, and the roller 2 drives the cloth to move (left and right directions in the figure), and then adjusts the excess of the cloth at the roller so that the cloth can be fully and reasonably pressed by the roller. In some cases, the roller motor is used in combination with the screw motor, and the roller motor can solve the problem of excessive stop width or cloth detaching from the roller caused by the screw motor alone.

[0109] like Figure 3 and Figure 4 As shown, exemplarily, the upper edge sensor and the lower edge sensor are upper optical fiber sensor 15 and lower optical fiber sensor 16, which are located on one side of the needle and detect the edges of the upper and lower fabrics at the opposite edge positions, respectively. The upper deviation correction sensor and the lower deviation correction sensor are upper photoelectric sensor 3 and lower photoelectric sensor 4, which are located on both sides of the spacer assembly and detect the edges of the upper and lower fabrics at the non-opposite edge positions, respectively.

[0110] Please continue to refer to Figure 2Continuing with the example of the automatic edge-aligning mechanism 23 being arranged in parallel with the sewing machine body 22, the cloth has at least three movement states during sewing. The first is the sewing feeding of the cloth in the front-to-back direction as shown in the figure, which is controlled by the feeding mechanism of the sewing machine body 22; the second is the movement of the cloth in the left-right direction as shown in the figure, which is controlled by the upper screw motor 13 and the lower screw motor 14 of the automatic edge-aligning mechanism 23; the third is the adjustment of the cloth margin in the left-right direction as shown in the figure, which is controlled by the upper roller motor 11 and the lower roller motor 12 of the automatic edge-aligning mechanism 23.

[0111] In the second and third movements, the upper fiber optic sensor 15 and the lower fiber optic sensor 16, the upper photoelectric sensor 3 and the lower photoelectric sensor 4 detect the cloth respectively. Through two groups of four sensors, the roller can firmly control the cloth and flexibly align the edges. In particular, the setting of the upper photoelectric sensor 3 and the lower photoelectric sensor 4 reduces the difficulty of laying the cloth, so that when the cloth is placed on the roller, there is no need to align the edges and points, and the position adjustment is left to the mechanism itself, which also increases efficiency to a certain extent.

[0112] It should be noted that the roller in this embodiment presses the fabric tightly but not tightly. The degree of compression is sufficient to provide friction so that the roller can drive the fabric to move when rotating to adjust the margin and correct the deviation. At the same time, the degree of compression can also allow the fabric to be pulled away as sewing proceeds. Figure 1 For example, under the rotation of the roller, the fabric moves in the left and right directions shown in the figure to adjust the allowance, and the fabric needs to move in the front and back directions shown in the figure to achieve sewing feeding. At this time, the pressing degree of the roller allows the fabric to be pulled away from the bottom of the roller. Therefore, the roller is different from a fully clamped fixture. The roller fixture realizes the ability to control the fabric without interfering with the sewing feeding, and both rolling and translation can achieve the effect.

[0113] In some embodiments, because the lower opposite side assembly and the upper opposite side assembly are mirror images relative to the spacer assembly, the upper roller 1 and the lower roller 2 both press the fabric on the clamp baffle 5. In order to alleviate the problem of excessive compression of the fabric by the upper roller 1 due to gravity in the upper opposite side assembly, a lifting spring is provided at the upper opposite side assembly, and the two ends of the spring are respectively connected to the fixed ends of the upper roller 1 and the upper lifting cylinder 7, and the compression of the upper roller 1 is relieved by the lifting spring.

[0114] In some embodiments, the material separation assembly includes a clamp baffle 5 and a baffle cylinder 6. Both sides of the clamp baffle 5 have planes for supporting the fabric and for the upper opposite side assembly and the lower opposite side assembly to press the corresponding fabric. The baffle cylinder 6 is connected to the clamp baffle 5. The baffle cylinder 6 is used to drive the clamp baffle 5 to move to separate the material separation assembly from the upper opposite side assembly and the lower opposite side assembly.

[0115] In this embodiment, the clamp baffle 5 is retractable through the baffle cylinder 6, so that the automatic edge alignment mechanism 23 can adapt to the difficult process of three-dimensional stitching of cylindrical sleeves, thereby allowing the automatic sleeve sewing machine to take into account both cylindrical sleeve and unfolded sleeve processes.

[0116] The automatic sleeve sewing machine can not only realize the above-mentioned control of the opposite sides through four sensors and corresponding motors, but also control the feeding force through two lifting cylinders. For the control of feeding force, the upper roller 1 is driven by the upper lifting cylinder 7 to press the upper fabric, and the lower roller 2 is driven by the lower lifting cylinder 8 to press the lower fabric, and by changing the pressing force applied by the upper lifting cylinder 7 and the lower lifting cylinder 8 to the corresponding rollers, the pressing degree of the rollers can be changed, thereby controlling the feeding force.

[0117] After the whole pattern sewing is completed, the upper lifting cylinder 7 and the lower lifting cylinder 8 are retracted, the upper roller motor 11, the lower roller motor 12, the upper screw motor 13 and the lower screw motor 14 are reset, and the whole sleeve sewing process is completed.

[0118] Please refer to Figure 6 and Figure 7 , Figure 6 The cylindrical sleeve edge matching flow chart provided in the embodiment of the present application is as follows: Figure 7 A flow chart of unfolding sleeve edges provided in an embodiment of the present application.

[0119] like Figure 6 As shown, for sewing the cylindrical sleeve, the sewing machine body 22 is started, and the feeding mechanism of the sewing machine body 22 starts to sew the fabric together with the sewing mechanism at the speed set by the program; at this time, the four sensors of the automatic edge alignment mechanism 23 and the corresponding motors also start to work synchronously to control the alignment of the edges of the two pieces of fabric; before sewing to the segmentation point of the last section, the processes M1 (upper fabric deviation correction process), M2 (lower fabric deviation correction process), M3 (upper fabric edge alignment process) and M4 (lower fabric edge alignment process) are repeatedly executed, and the sewing of the cylindrical sleeve is consistent with the process of sewing the unfolded sleeve; the electronic control controls the sewing to be temporarily stopped when the program progress reaches the segmentation point of the last section. Stop, the lower screw motor 14 controls the position of the lower driver 10 (screw) to be consistent with the position of the upper screw motor 13 and the upper driver 9 (screw), so that the upper roller 1 and the lower roller 2 are aligned, and then the baffle cylinder 6 retracts the clamp baffle 5, and the clamp baffle 5 between the rollers is pulled out, resulting in a gap between the upper roller 1 and the lower roller 2. At this time, the upper lifting cylinder 7 and the lower lifting cylinder 8 will push the upper roller 1 and the lower roller 2 to clamp the middle cloth again due to the unused stroke. The last section of sewing is controlled by the upper optical fiber sensor 15 to control the upper screw motor 13 and the lower screw motor 14 according to the process M5 (the process of matching the upper and lower cloth edges) to complete the final edge alignment work.

[0120] like Figure 7As shown, the sleeve sewing is unfolded, the sewing machine body 22 is started, and the feeding mechanism of the sewing machine body 22 starts to sew the cloth together with the sewing mechanism at the speed set by the program; at this time, the four sensors and the corresponding motors of the automatic edge alignment mechanism 23 also start to work synchronously to control the alignment of the edges of the two pieces of cloth; the electronic control timely adjusts the feeding direction and the differential according to the segmentation conditions set in the pre-program until the stitching is completed. During this process, the automatic edge alignment control remains unchanged, and before the sewing is completed, it is repeatedly executed according to the processes M1 (upper cloth deviation correction process), M2 (lower cloth deviation correction process), M3 (upper cloth edge alignment process) and M4 (lower cloth edge alignment process).

[0121] Please refer to Figure 8 , Figure 8 The flowchart of the upper fabric correction provided in the embodiment of the present application, process M1 is the upper fabric correction process. During the sewing process, the upper photoelectric sensor 3 detects the upper fabric on the upper side of the clamp baffle 5. If the upper fabric is detected, the upper roller motor 11 is controlled to adjust the upper fabric in a positive direction. If the upper fabric is not detected, the upper roller motor 11 is controlled to adjust the upper fabric in a negative direction. This correction detection process is repeated during sewing to ensure that the upper fabric is reliably controlled by the upper roller motor 11.

[0122] Please refer to Fig. 9 , Fig. 9 The following is a flow chart of the deviation correction of the lower fabric provided in the embodiment of the present application, and the flow M2 is the process of the deviation correction of the lower fabric. During the sewing process, the lower photoelectric sensor 4 detects the lower fabric on the lower side of the clamp baffle 5. If the lower fabric is detected, the lower roller motor 12 is controlled to adjust the lower fabric in a positive direction. If the lower fabric is not detected, the lower roller motor 12 is controlled to adjust the lower fabric in a negative direction. This deviation correction detection process is repeated during sewing to ensure that the lower fabric is reliably controlled by the lower roller motor 12.

[0123] Please refer to Fig.10 , Fig.10 The process M3 is the process of aligning the upper fabric edge provided in the embodiment of the present application. During the sewing process, the upper optical fiber sensor 15 detects the upper fabric on the side of the needle. If the upper fabric is detected, the upper screw motor 13 is controlled to move the upper fabric in the positive direction. If the upper fabric is not detected, the upper screw motor 13 is controlled to move the upper fabric in the negative direction. This process of aligning the upper fabric edge is repeated during sewing to ensure that the upper fabric is accurately aligned on the side of the needle.

[0124] Please refer to Fig.11 , Fig.11The flow chart of the alignment of the lower fabric provided in the embodiment of the present application, process M4 is the process of the alignment of the lower fabric. During the sewing process, the lower optical fiber sensor 16 detects the lower fabric on the side of the needle. If the lower fabric is detected, the lower screw motor 14 is controlled to move the lower fabric in the positive direction. If the lower fabric is not detected, the lower screw motor 14 is controlled to move the lower fabric in the negative direction. This alignment detection process is repeated during sewing to ensure that the lower fabric is accurately aligned on the side of the needle.

[0125] Please refer to Fig.12 , Fig.12 The flow chart of the edge alignment of the upper and lower fabrics provided in the embodiment of the present application, process M5 is the process of the edge alignment of the upper and lower fabrics. During the sewing process, only the upper optical fiber sensor 15 is used for detection. At this time, the upper and lower fabrics that are bonded are detected. If two pieces of fabric are detected, the upper screw motor 13 and the lower screw motor 14 are synchronously controlled to move the two pieces of fabric in the positive direction. If two pieces of fabric are not detected, the upper screw motor 13 and the lower screw motor 14 are synchronously controlled to move the two pieces of fabric in the negative direction. This edge alignment detection process is repeated during sewing to ensure that the two pieces of fabric are accurately aligned on one side of the needle.

[0126] The present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of the above method.

[0127] It should be noted that many of the components mentioned in this application are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0128] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0129] The above is a detailed introduction to the automatic sleeve sewing method, automatic sleeve sewing machine, and readable storage medium provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An automatic sleeve sewing method, characterized in that: include: Set the sewing pattern and determine whether the sewing type is cylindrical sleeve or spread sleeve. If the sewing type is cylindrical sleeve, execute the cylindrical sleeve process; if the sewing type is spread sleeve, execute the spread sleeve process; The cylindrical sleeve process includes a cylindrical sleeve sewing sub-process and a cylindrical sleeve edge alignment sub-process, and the cylindrical sleeve edge alignment sub-process is executed simultaneously with the cylindrical sleeve sewing sub-process. The cylindrical sleeve edge alignment sub-process includes: separating two pieces of fabric, respectively detecting and aligning the edges of the two pieces of fabric; repeating the previous step until the segmentation point of the last section is sewn, pausing the sewing, and executing the next step; sticking the two pieces of fabric together, and detecting and aligning the edges of the two pieces of fabric at the same time; repeating the previous step until the sewing of the cylindrical sleeve is completed; The unfolding sleeve process includes an unfolding sleeve sewing sub-process and an unfolding sleeve edge alignment sub-process, and the unfolding sleeve edge alignment sub-process is executed simultaneously with the unfolding sleeve sewing sub-process. The unfolding sleeve edge alignment sub-process includes: separating two pieces of fabric, detecting and aligning the edges of the two pieces of fabric respectively; repeating the previous step until the sewing of the unfolded sleeve is completed.

2. The automatic sleeve sewing method according to claim 1, characterized in that: The steps of respectively detecting and aligning the edges of the two pieces of cloth include: The upper edge position is detected by an upper edge sensor; If there is upper fabric at the upper edge-matching position, the upper fabric is adjusted in a positive direction so that the edge of the upper fabric moves to the upper edge-matching position and then faces the rear edge; if there is no upper fabric at the upper edge-matching position, the upper fabric is adjusted in a negative direction so that the edge of the upper fabric moves to the upper edge-matching position and then faces the rear edge; The position of the lower opposite side is detected by a lower opposite side sensor; If there is lower fabric at the lower opposite edge position, the lower fabric is adjusted in a positive direction so that the edge of the lower fabric moves to the lower opposite edge position to the rear opposite edge; if there is no lower fabric at the lower opposite edge position, the lower fabric is adjusted in a negative direction so that the edge of the lower fabric moves to the lower opposite edge position to the rear opposite edge.

3. The automatic sleeve sewing method according to claim 2, characterized in that: The step of simultaneously detecting and aligning the edges of two pieces of cloth comprises: The upper edge position is detected by an upper edge sensor; If there are upper fabrics and lower fabrics at the upper edge-to-edge position, the edges of the upper fabrics and lower fabrics are positively adjusted to move to the upper edge-to-edge position for rear edge-to-edge; if there are no upper fabrics and lower fabrics at the upper edge-to-edge position, the upper fabrics and lower fabrics are negatively adjusted to move to the upper edge-to-edge position for rear edge-to-edge.

4. The automatic sleeve sewing method according to claim 1, characterized in that: The step of separating the two pieces of fabric comprises: The two pieces of fabric are separated by a spacer assembly, the upper fabric is pressed and moved by an upper side-to-side assembly on the upper side of the spacer assembly, and the lower fabric is pressed and moved by a lower side-to-side assembly on the lower side of the spacer assembly; The step of laminating the two pieces of fabric comprises: The spacer assembly is controlled to separate from the upper and lower side assemblies, and the upper and lower side assemblies are controlled to press and move the fitted upper and lower fabrics.

5. The automatic sleeve sewing method according to claim 4, characterized in that: After the step of separating the two pieces of fabric, the method further comprises: The upper deviation position is detected by the upper deviation correction sensor; If there is upper fabric at the upper offset position, the upper fabric is adjusted in a positive direction so that the edge of the upper fabric moves to the upper offset position and then corrects the deviation; if there is no upper fabric at the upper offset position, the upper fabric is adjusted in a negative direction so that the edge of the upper fabric moves to the upper offset position and then corrects the deviation; The lower deviation position is detected by the lower deviation correction sensor; If there is lower fabric at the lower offset position, the lower fabric is adjusted in a positive direction so that the edge of the lower fabric moves to the lower offset position and then corrects the deviation; if there is no lower fabric at the lower offset position, the lower fabric is adjusted in a negative direction so that the edge of the lower fabric moves to the lower offset position and then corrects the deviation.

6. The automatic sleeve sewing method according to claim 5, characterized in that: Before the step of laminating the two pieces of fabric, the method comprises: Adjust the positions of the upper and lower edge-to-edge components on the fabric to be the same, and control the movements of the upper and lower edge-to-edge components to be synchronized.

7. The automatic sleeve sewing method according to any one of claims 1 to 6, characterized in that: The cylindrical sleeve sewing sub-process comprises: setting feeding parameters according to the pattern and sewing; judging whether there is a sewing pause signal, if not, repeating the previous step, if yes, executing the next step; sewing pause, judging whether there is a sewing continuation signal, if not, repeating this step, if yes, executing the next step; sewing continues, judging whether sewing is completed, if not, repeating this step, if completed, executing the next step; sewing ends; The sleeve unfolding sewing sub-process comprises: setting feeding parameters according to the pattern and sewing; judging whether sewing is completed, if not completed, repeating the previous step, if completed, executing the next step; and finishing sewing.

8. The automatic sleeve sewing method according to any one of claims 4 to 6, characterized in that: The cylindrical sleeve process and the unfolded sleeve process both include a feeding force control sub-process, which is executed simultaneously with the corresponding sewing sub-process. The feeding force control sub-process includes: controlling the degree of compression of the upper and lower side components on the fabric, and adjusting the feeding force of the fabric.

9. An automatic sleeve sewing machine, characterized in that: Suitable for the automatic sleeve sewing method as described in any one of claims 1 to 8, the automatic sleeve sewing machine includes a sewing machine body, an automatic edge alignment mechanism, an edge alignment detection mechanism, a deviation correction detection mechanism and an auxiliary cloth-supporting wheel mechanism, the sewing machine body includes a machine needle and a feeding mechanism for feeding upper fabric and lower fabric to the machine needle for sewing, the edge alignment detection mechanism is used to detect the edge alignment of the fabric, the deviation correction detection mechanism is used to detect the offset of the fabric, the automatic edge alignment mechanism is used to control the edge alignment of the fabric according to the edge alignment and adjust the excess fabric according to the offset, the automatic edge alignment mechanism is also used to adjust the fabric feeding force, and the auxiliary cloth-supporting wheel mechanism is used to assist in the flipping of fabric with excess length other than sewing.

10. A computer-readable storage medium, characterized in that: A computer program is stored, and when the computer program is executed by a processor, the processor is caused to perform the steps of the method according to any one of claims 1 to 8.

Images