Sewing starting position detection mechanism, sewing equipment and sewing method

Abstract

The invention discloses a sewing starting position detection mechanism, sewing equipment and a sewing method. The seam starting position detection mechanism comprises a base; the movable part is movably arranged on the base, the movable part is provided with a first position and a second position, and the movable part is used for being driven to the second position from the cloth sewing starting position from the first position; and the detection part is used for detecting the position of the movable part, and when the movable part is located at the second position, the detection part is used for outputting a trigger signal. According to the sewing starting position detection mechanism, the position change of the movable part is caused by the sewing starting position of the cloth, and the detection part detects the sewing starting position of the cloth through the movement of the movable part and outputs the trigger signal, so that the sewing starting position of the cloth can be accurately detected, and the needle closing position can be accurately determined.

Description

Technical Field

[0001] The present invention relates to the technical field of sewing, and in particular to a seam start position detection mechanism, sewing equipment and a sewing method. Background Art

[0002] In the prior art, when sewing a ribbed hem, a worker first folds the hem rib in half, aligns it, and places it into the ribbed hem machine. Then, they place the main body fabric onto the machine and start sewing. However, it's currently impossible to accurately detect the needle closing position during the sewing process. Summary of the Invention

[0003] Embodiments of the present invention provide a seam start position detection mechanism, a sewing device, and a sewing method to solve at least one of the above-mentioned technical problems.

[0004] A seam starting position detection mechanism according to an embodiment of the present invention includes:

[0005] base;

[0006] A movable member, the movable member is movably provided on the base, the movable member has a first position and a second position, and the movable member is used to drive the fabric from the first position to the second position via the sewing starting position;

[0007] A detection member is used to detect the position of the movable member, and when the movable member is in the second position, the detection member is used to output a trigger signal.

[0008] In some embodiments, the movable member is rotatably disposed on the base.

[0009] In some embodiments, the detection member is disposed on the base, and the detection member is provided with a detection port. When the movable member is located at the first position, one end of the movable member on the base is located at the detection port. When the movable member is located at the second position, one end of the movable member on the base deviates from the detection port.

[0010] In some embodiments, one end of the movable member outside the base is tapered in a direction away from the base.

[0011] In some embodiments, the detection member is used to emit detection light toward the detection port, and when the movable member is in the first position, one end of the movable member on the base is located in an optical path of the detection light, and when the movable member is in the second position, one end of the movable member on the base is located outside the optical path of the detection light, or;

[0012] When the movable member is in the first position, one end of the movable member on the base is outside the optical path of the detection light. When the movable member is in the second position, one end of the movable member on the base is in the optical path of the detection light.

[0013] In some embodiments, the seam starting position detection mechanism includes a reset member connected to the movable member, and the reset member is used to drive the movable member to move from the second position to the first position.

[0014] In some embodiments, the movable part is rotatably provided on the base, and the reset part includes an elastic part, one end of the elastic part is connected to the movable part, and the other end is connected to the base, and the elastic part is used to drive the movable part to rotate along a first direction to switch from the second position to the first position, and the first direction is opposite to the second direction in which the movable part is driven to rotate at the fabric sewing position.

[0015] In some embodiments, the seam starting position detection mechanism includes a driving assembly, which is connected to the base. The driving assembly is used to drive the base to move so that the movable part extends into the gap between the two fabrics to detect the seam starting position of the fabrics, and after detecting the seam starting position of the fabrics, drive the base to move so that the movable part is pulled out of the gap between the two fabrics.

[0016] A sewing device provided in an embodiment of the present invention includes a sewing module and a seam start position detection mechanism as described in any of the above embodiments, wherein the sewing module is used to sew a first fabric and a second fabric and form a fabric seam start position, and the seam start position detection mechanism is used to detect the fabric seam start position.

[0017] An embodiment of the present invention provides a sewing method for use with the sewing device described in the above embodiment, the sewing method comprising:

[0018] placing the movable member between a first fabric and a second fabric to be sewn;

[0019] When the detection element outputs the trigger signal, determining that the movable element detects the seam starting position of the first fabric and the second fabric;

[0020] The stitch length and end distance of the sewing equipment are determined according to the sewing start position of the fabric.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments with reference to the following drawings, in which:

[0023] Figure 1 2 is a schematic structural diagram of a seam start position detection mechanism according to an embodiment of the present invention;

[0024] Figure 2 It is another structural schematic diagram of the seam starting position detection mechanism according to an embodiment of the present invention.

[0025] Description of main reference numerals:

[0026] Seam starting position detection mechanism 1000, drive assembly 100, base 200, movable part 300, detection part 400, reset part 500, cylinder 101, sliding assembly 102, rotating shaft 201, detection port 401, elastic part 501, piston rod 1011, slide rail 1021, slider 1022. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present invention, and should not be understood as limiting the embodiments of the present invention.

[0034] See also Figure 1 and Figure 2 A seam start position detection mechanism 1000 according to an embodiment of the present invention includes a base 200, a movable member 300, and a detection member 400. The movable member 300 is movably mounted on the base 200 and has a first position and a second position. The movable member 300 is configured to move the seam start position of the fabric from the first position to the second position. The detection member 400 is configured to detect the position of the movable member 300 and output a trigger signal when the movable member 300 is in the second position.

[0035] In the above-mentioned seam start position detection mechanism 1000, the position change of the movable part 300 is caused by the seam start position of the fabric. The detection part 400 detects the seam start position of the fabric through the movement of the movable part 300 and outputs a trigger signal, so that the seam start position of the fabric can be detected more accurately, which is conducive to accurately determining the needle closing position.

[0036] Specifically, the seam start position detection mechanism 1000 can be used in a sewing device. The sewing device may include a tensioning and rotating module and a sewing module. The tensioning and rotating module is used to tension and rotate a first fabric and a second fabric sleeved on the first fabric, and the sewing module is used to sew the first fabric and the second fabric.

[0037] In one embodiment, the sewing module may include a needle that can pass a sewing thread through the first fabric and the second fabric, thereby sewing the first fabric and the second fabric together.

[0038] The position where the sewing module starts to sew the first fabric and the second fabric is the starting position of the seam. During the process of sewing the first fabric and the second fabric, the first fabric and the second fabric are continuously fed to the sewing module for sewing until the sewing is completed. The sewn fabrics form a closed lock or chain stitch.

[0039] Optionally, in one embodiment, the position of the sewing module when finishing sewing is at the seam starting position. In one embodiment, the position of the sewing module when finishing sewing is at or near the seam starting position.

[0040] In the prior art, when sewing a ribbed hem, a worker first folds the hem rib in half, aligns it, and places it into the ribbed hem machine. Then, they place the main body fabric onto the machine and start sewing. However, it's currently impossible to accurately detect the needle closing position during the sewing process.

[0041] In the embodiment of the present invention, the seam start position detection mechanism 1000 can detect the seam start position of the fabric during the sewing process, thereby accurately detecting the needle closing position to a certain extent.

[0042] It is understood that the sewing module begins sewing at the fabric starting position, completes a full stitch along the pre-set sewing path, and then resumes sewing at the starting position. At this point, the sewing module can stop sewing or continue sewing for a pre-set distance to form a stitch overlap zone. The pre-set distance, also known as the stitch length, ensures that the sewn fabric forms a closed lock or chain stitch.

[0043] The seam starting position detection mechanism 1000 may include a base 200, a movable member 300, and a detection member 400. The base 200 may be used to support and fix the entire seam starting position detection mechanism 1000. The movable member 300 may be movable relative to the base 200, thereby causing the detection member 400 to output a trigger signal.

[0044] The movable member 300 has a first position and a second position, and can be driven from the first position to the second position by the seam start position of the fabric. The detection member 400 can detect the position of the movable member 300 and output a trigger signal when the movable member 300 is in the second position.

[0045] It should be noted that, during the sewing process, before the sewing starting position of the fabric drives the movable member 300 to move, the movable member 300 is at least partially located in the gap between the first fabric and the second fabric.

[0046] exist Figure 1 and Figure 2 In one embodiment, the movable member 300 is rotatably disposed on the base 200. The movable member 300 can rotate from a first position to a second position. In another embodiment, the movable member 300 is slidably disposed on the base 200. The movable member 300 can slide from a first position to a second position.

[0047] The detection element 400 may include, but is not limited to, a photoelectric sensor, a proximity sensor, a micro switch, and a capacitive touch sensor.

[0048] In one embodiment, when the detecting member 400 detects that the movable member 300 is in the second position, the output level of the detecting member 400 changes from low to high. In one embodiment, when the detecting member 400 detects that the movable member 300 is in the second position, the output level of the detecting member 400 changes from high to low.

[0049] In some embodiments, please combine Figure 1 and Figure 2 The movable member 300 is rotatably disposed on the base 200 .

[0050] In the above embodiment, the movable member 300 is rotatably disposed on the base 200 , which can improve the response sensitivity of the seam starting position detection mechanism 1000 .

[0051] Specifically, in one embodiment, a rotating shaft 201 is provided on the base 200, and the movable member 300 is rotatably connected to the rotating shaft 201. When the cloth sewing position drives the movable member 300 to move, the movable member 300 can rotate along the rotating shaft 201.

[0052] Optionally, the seam starting position detection mechanism 1000 includes a limiting structure, which can be used to limit the range of rotation of the movable part 300, thereby improving the stability and consistency of the seam starting position detection mechanism 1000.

[0053] It is understandable that the movable member 300 is rotatably disposed on the base 200 , and the movable member 300 can rotate from a first position to a second position, thereby reducing friction and making the movable member 300 more sensitive and smooth.

[0054] In some embodiments, please combine Figure 1 and Figure 2 The detection member 400 is arranged on the base 200, and the detection member 400 is provided with a detection port 401. When the movable member 300 is located at the first position, one end of the movable member 300 on the base 200 is located at the detection port 401. When the movable member 300 is located at the second position, one end of the movable member 300 on the base 200 deviates from the detection port 401.

[0055] In the above embodiment, the detection member 400 can detect the position of the movable member 300 through the detection port 401, thereby being able to more accurately detect the seam start position of the fabric, which is beneficial for accurately determining the needle closing position.

[0056] Specifically, in one embodiment, the detection member 400 may include a photoelectric sensor, with a detection port 401 formed between its transmitting and receiving ends. When the movable member 300 is in the first position, one end of the movable member on the base 200 blocks the detection port 401, preventing the photoelectric sensor from receiving light signals. When the movable member 300 rotates to the second position, driven by the seam start position, the movable member 300 deviates from the detection port 401, allowing light signals to be received and the detection member 400 outputs a trigger signal.

[0057] In one embodiment, the detection member 400 is provided with a detection port 401, which may be equipped with a microswitch. The microswitch comprises a switch post and a spring, which may be mounted on the switch post. When the movable member 300 is in the first position, one end of the movable member on the base 200 compresses the switch post, causing it to retract. When the movable member 300 rotates to the second position, driven by the seam start position, the movable member 300 moves away from the detection port 401, the switch post extends under the action of the spring, and the detection member 400 outputs a trigger signal.

[0058] In some embodiments, please combine Figure 1 and Figure 2 One end of the movable member 300 outside the base 200 is tapered in a direction away from the base 200 .

[0059] In the above embodiment, one end of the movable part 300 outside the base 200 is tapered in the direction away from the base 200 , so that the seam starting position of the fabric can contact the movable part 300 more smoothly, thereby improving the stability of the seam starting position detection mechanism 1000 .

[0060] Specifically, in one embodiment, the end of the movable member 300 outside the base 200 is tapered in a direction away from the base 200, thereby forming a tapered end. In one embodiment, the end outside the base 200 is curved or inclined in a direction away from the base 200, thereby forming a curved or inclined end. Optionally, the curved surface or inclined surface of the tapered end faces away from the sewing module.

[0061] When the seam starting position of the fabric drives the movable part 300 to move, the seam line at the seam starting position contacts the movable part 300 placed in the gap between the first fabric and the second fabric, and at the same time generates a thrust on the movable part 300. Under the action of the thrust, the movable part 300 rotates from the first position to the second position, and the detection part 400 outputs a trigger signal.

[0062] In some embodiments, please combine Figure 1 and Figure 2 The detecting member 400 is used to emit detection light toward the detecting port 401. When the movable member 300 is located at the first position, one end of the movable member 300 on the base 200 is located in the optical path of the detection light. When the movable member 300 is located at the second position, one end of the movable member 300 on the base 200 is located outside the optical path of the detection light. Alternatively,

[0063] When the movable member 300 is at the first position, one end of the movable member 300 on the base 200 is outside the optical path of the detection light. When the movable member 300 is at the second position, one end of the movable member 300 on the base 200 is located in the optical path of the detection light.

[0064] In the above embodiment, the seam start position of the fabric can be detected more accurately while improving the flexibility of the scene.

[0065] Specifically, in Figure 1 and Figure 2 In the embodiment, the detection member 400 can emit detection light to the detection port 401. When the movable member 300 is in the first position, one end thereof on the base 200 is located in the optical path of the detection light, and the detection port 401 cannot receive the light signal; when the movable member 300 rotates to the second position driven by the seam start position of the fabric, one end thereof on the base 200 is located outside the optical path of the detection light, the detection port 401 can receive the light signal, and the detection member 400 outputs a trigger signal.

[0066] In one embodiment, the detection member 400 can emit detection light to the detection port 401. When the movable member 300 is in the first position, one end thereof on the base 200 is outside the optical path of the detection light, and the detection port 401 can receive the light signal; when the movable member 300 rotates to the second position driven by the seam start position of the fabric, one end thereof on the base 200 is located in the optical path of the detection light, the detection port 401 cannot receive the light signal, and the detection member 400 outputs a trigger signal.

[0067] In some embodiments, please combine Figure 1 and Figure 2 The seam starting position detection mechanism 1000 includes a reset member 500, which is connected to the movable member 300. The reset member 500 is used to drive the movable member 300 to move from the second position to the first position.

[0068] In the above embodiment, the reset member 500 can, to a certain extent, prevent the detection member 400 from being triggered due to vibration or external force, thereby improving the accuracy of the seam starting position detection mechanism 1000.

[0069] Specifically, when the sewing module starts to sew the first fabric and the second fabric, the movable part 300 can extend into the gap between the first fabric and the second fabric. Before the fabric sewing starting position contacts the movable part 300 to drive the movable part 300 to move, the reset part 500 can keep the movable part 300 in the first position, thereby avoiding, to a certain extent, the detection part 400 being triggered by vibration or external force.

[0070] After the movable member 300 moves to the second position driven by the seam starting position of the fabric, the movable member 300 can be pulled out from the gap between the first fabric and the second fabric, and the reset member 500 can reset the movable member 300 from the second position to the first position.

[0071] In some embodiments, please combine Figure 1 and Figure 2 The movable member 300 is rotatably provided on the base 200, and the reset member 500 includes an elastic member 501. One end of the elastic member 501 is connected to the movable member 300, and the other end is connected to the base 200. The elastic member 501 is used to drive the movable member 300 to rotate along a first direction to switch from the second position to the first position. The first direction is opposite to the second direction in which the movable member 300 is driven to rotate at the fabric sewing position.

[0072] In the above embodiment, the elastic member 501 can switch the movable member 300 from the second position to the first position, thereby facilitating the seam starting position detection mechanism 1000 to detect the seam starting position of the fabric next time.

[0073] Specifically, the reset member 500 may include an elastic member 501. The elastic member 501 may include, but is not limited to, a compression spring, an extension spring, a torsion spring, or an elastic rubber member. The base 200 can secure the entire seam start position detection mechanism 1000. One end of the elastic member 501 is connected to the movable member 300, and the other end is connected to the base 200.

[0074] The movable member 300 can be driven by the fabric seam starting position to rotate from the first position to the second position, and the direction of rotation from the first position to the second position is the second direction. The elastic member 501 can drive the movable member 300 to rotate from the second position to the first position, and the direction of rotation from the second position to the first position is the first direction. The first direction and the second direction are opposite.

[0075] In some embodiments, please combine Figure 1 and Figure 2 The seam starting position detection mechanism 1000 includes a driving assembly 100, which is connected to the base 200. The driving assembly 100 is used to drive the base 200 to move so that the movable part 300 extends into the gap between the two fabrics to detect the seam starting position of the fabrics, and after detecting the seam starting position of the fabrics, drive the base 200 to move so that the movable part 300 is pulled out of the gap between the two fabrics.

[0076] In the above embodiment, the driving component 100 can drive the seam start position detection mechanism 1000 to move, so that the movable part 300 extends into or out of the gap between the two fabrics, thereby detecting the seam start position of the fabrics and at the same time avoiding the movable part 300 from interfering with subsequent stitching to a certain extent.

[0077] Specifically, the drive assembly 100 may include a pneumatic device. The pneumatic device may include a cylinder 101 and a sliding assembly 102, which is respectively connected to the base 200 and the sewing device. The sliding assembly 102 includes a slider 1022 and a slide rail 1021 that cooperate with each other. The slide rail 1021 is connected to the base 200. The surface of the slider 1022 facing the slide rail 1021 may be provided with a slide groove, allowing the slider 1022 to slide along the slide rail 1021 for linear motion. The surface of the slider 1022 facing away from the slide rail 1021 may be fixedly connected to the sewing device. The piston rod 1011 of the cylinder 101 may be fixedly connected to the base 200.

[0078] When the piston rod 1011 is retracted, the movable member 300 is located outside the gap between the two fabrics. Before the sewing module begins sewing, the cylinder 101 is inflated. The compressed air pushes the piston rod 1011 outward, driving the base 200 to move. As the base 200 moves, the slider 1022 and the slide rail 1021 move relative to each other, driving the movable member 300 to extend into the gap between the two fabrics to detect the seam start position. When the seam start position is detected, the cylinder 101 is exhausted, and the piston rod 1011 retracts under the action of the air pressure, driving the base 200 to move. As the base 200 moves, the slider 1022 and the slide rail 1021 move relative to each other, driving the movable member 300 to withdraw from the gap between the two fabrics.

[0079] A sewing device according to an embodiment of the present invention includes a sewing module and a seam start position detection mechanism 1000 according to any of the above embodiments. The sewing module is used to sew a first fabric and a second fabric and form a fabric seam start position. The seam start position detection mechanism 1000 is used to detect the fabric seam start position.

[0080] In the above-mentioned sewing equipment, the seam starting position detection mechanism 1000 is used to detect the seam starting position of the fabric, which can accurately determine the needle closing position, thereby improving the sewing effect.

[0081] Specifically, in one embodiment, the sewing device may include a tensioning and rotating module and a sewing module. The tensioning and rotating module is used to tension and rotate a first fabric and a second fabric sleeved on the first fabric, and the sewing module is used to sew the first fabric and the second fabric.

[0082] In one embodiment, the sewing module may include a needle that can pass a sewing thread through the first fabric and the second fabric, thereby sewing the first fabric and the second fabric together.

[0083] The position where the sewing module starts to sew the first fabric and the second fabric is the starting position of the seam. During the process of sewing the first fabric and the second fabric, the first fabric and the second fabric are continuously fed to the sewing module for sewing until the sewing is completed. The sewn fabrics form a closed lock or chain stitch.

[0084] Optionally, in one embodiment, the position of the sewing module when finishing sewing is at the seam starting position. In one embodiment, the position of the sewing module when finishing sewing is at or near the seam starting position.

[0085] The seam start position detection mechanism 1000 can detect the seam start position of the fabric during the sewing process, thereby accurately detecting the needle closing position to a certain extent.

[0086] It is understood that the sewing module begins sewing at the fabric starting position, completes a full stitch along the pre-set sewing path, and then resumes sewing at the starting position. At this point, the sewing module can stop sewing or continue sewing for a pre-set distance to form a stitch overlap zone. The pre-set distance, also known as the stitch length, ensures that the sewn fabric forms a closed lock or chain stitch.

[0087] A sewing method according to an embodiment of the present invention is used for the sewing device according to the above embodiment, and the sewing method comprises:

[0088] The movable member 300 is placed between the first fabric and the second fabric to be sewn;

[0089] When the detection member 400 outputs a trigger signal, it is determined that the movable member 300 detects the seam start position of the first fabric and the second fabric;

[0090] Determine the stitch length and end distance of the sewing equipment according to the starting and ending position of the fabric.

[0091] In the above sewing method, the needle closing length and the end distance of the sewing equipment are determined according to the starting position of the sewing of the fabric, so that the needle closing position can be accurately determined, thereby improving the sewing effect.

[0092] Specifically, in one embodiment, the sewing device may include a tensioning and rotating module and a sewing module. The tensioning and rotating module is used to tension and rotate a first fabric and a second fabric sleeved on the first fabric, and the sewing module is used to sew the first fabric and the second fabric.

[0093] In one embodiment, the sewing module may include a needle that can pass a sewing thread through the first fabric and the second fabric, thereby sewing the first fabric and the second fabric together.

[0094] During the sewing process of the sewing module, the first fabric and the second fabric are continuously conveyed to the sewing module for sewing until the sewing is completed. At this time, the sewn fabrics form a closed lock or chain stitch.

[0095] The seam start position detection mechanism 1000 can be positioned near the sewing module. The distance between the seam start position detection mechanism 1000 and the sewing module is equal to the end distance. In one embodiment, just before the sewing module begins sewing, the seam start position detection mechanism 1000 can be driven by a drive device to move the movable member 300 so that it extends between the first and second fabrics to be sewn.

[0096] The position where the sewing module starts sewing is the fabric starting position. The sewing module starts sewing from the fabric starting position. During the sewing process along the preset sewing path, after the fabric starting position contacts the movable part 300, it drives the movable part 300 to move from the first position to the second position. The detection part 400 outputs a trigger signal, which indicates that the sewing position has reached the vicinity of the sewing module. The driving device can drive the sewing position detection mechanism 1000 to move so that the movable part 300 is pulled out between the first fabric to be sewn and the second fabric. The sewing module continues to sew for a certain distance and then sews to the sewing position again.

[0097] Optionally, after sewing to the seam starting position again, sewing can be continued for a preset distance to form a stitch overlap area. The preset distance is also the stitch length, which can ensure that the sewn fabric forms a closed lock or chain stitch to a certain extent.

[0098] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0099] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable actions for implementing a specific logical function or process step, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0100] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, combine, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A seam starting position detection mechanism, characterized in that: include: base; A movable member, the movable member is movably provided on the base, the movable member has a first position and a second position, and the movable member is used to drive the fabric from the first position to the second position via the sewing starting position; A detection member is used to detect the position of the movable member, and when the movable member is in the second position, the detection member is used to output a trigger signal.

2. The seam starting position detection mechanism according to claim 1, characterized in that: The movable part is rotatably arranged on the base.

3. The seam starting position detection mechanism according to claim 2, characterized in that: The detection member is arranged on the base, and the detection member is provided with a detection port. When the movable member is located at the first position, one end of the movable member on the base is located at the detection port. When the movable member is located at the second position, one end of the movable member on the base deviates from the detection port.

4. The seam starting position detection mechanism according to claim 3, characterized in that: One end of the movable member outside the base is in a tapered shape in a direction away from the base.

5. The seam starting position detection mechanism according to claim 3, characterized in that: The detection member is used to emit detection light toward the detection port, and when the movable member is in the first position, one end of the movable member on the base is located in the optical path of the detection light, and when the movable member is in the second position, one end of the movable member on the base is located outside the optical path of the detection light, or; When the movable member is in the first position, one end of the movable member on the base is outside the optical path of the detection light. When the movable member is in the second position, one end of the movable member on the base is in the optical path of the detection light.

6. The seam starting position detection mechanism according to claim 1, characterized in that: The seam starting position detection mechanism includes a reset member connected to the movable member, and the reset member is used to drive the movable member to move from the second position to the first position.

7. The seam starting position detection mechanism according to claim 6, characterized in that: The movable part is rotatably provided on the base, and the reset part includes an elastic part, one end of the elastic part is connected to the movable part, and the other end is connected to the base, and the elastic part is used to drive the movable part to rotate along a first direction to switch from the second position to the first position, and the first direction is opposite to the second direction in which the movable part is driven to rotate at the fabric sewing position.

8. The seam starting position detection mechanism according to claim 1, characterized in that: The seam starting position detection mechanism includes a driving assembly, which is connected to the base. The driving assembly is used to drive the base to move so that the movable part extends into the gap between the two fabrics to detect the seam starting position of the fabrics, and after detecting the seam starting position of the fabrics, drive the base to move so that the movable part is pulled out of the gap between the two fabrics.

9. A sewing device, characterized in that: It comprises a sewing module and a seam starting position detection mechanism according to any one of claims 1 to 8, wherein the sewing module is used to sew a first cloth and a second cloth and form a cloth seam starting position, and the seam starting position detection mechanism is used to detect the cloth seam starting position.

10. A sewing method, used for the sewing device according to claim 9, characterized in that: The sewing method comprises: placing the movable member between a first fabric and a second fabric to be sewn; When the detection element outputs the trigger signal, determining that the movable element detects the seam starting position of the first fabric and the second fabric; The stitch length and end distance of the sewing equipment are determined according to the sewing start position of the fabric.

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