A detection system for automatically switching sewing means

Abstract

A detection system for automatically switching sewing means comprises: a base; a thread feeding mechanism; a machine head assembly; a sewing platform; a code adjusting mechanism; a deviation correction mechanism, comprising a deviation correction frame, a deviation correction wheel and a pushing mechanism, wherein the deviation correction frame is hinged on the base, at least one deviation correction wheel is provided and is arranged at the front end of the deviation correction frame for correcting the deviation of a shirt body, the pushing mechanism is also hinged on the base, and its driving end is also hinged to the deviation correction frame, and at least one deviation correction sensor is also provided on the deviation correction frame; a switching detection sensor is arranged on one side of the sewing platform, and when the seam where the shirt body and the collar strip have been sewn triggers the detection sensor, the sewing platform is driven to switch the sewing means.

Description

Technical Field

[0001] The invention relates to the field of textile industry, and in particular to a detection system for automatically switching sewing means. Background Art

[0002] In this industry, the collar strip process is divided into fully manual sewing and semi-automatic sewing. Fully manual sewing is the most traditional method. In addition to the sewing machine, the worker does not use any tools and manually puts on the collar. In semi-automatic sewing, in addition to the sewing machine, there is also a device for automatically aligning and tightening the collar strip. When sewing, the collar and the edge of the collar strip need to be manually aligned, and the length of the cloth is manually controlled. Compared with the traditional method, the degree of automation is not significantly improved, and the worker still needs a high level of sewing technology to complete the collar process. Summary of the invention

[0003] Based on this, the present invention proposes a fully automatic collaring technology. The human hand first places the collar strip on the roller, and the machine automatically finds the bone position, aligns the collar strip edge and accurately places the collar strip; then the human hand covers the shirt body on the collar strip and starts sewing. During the sewing process, the machine automatically aligns the edge of the collar and the collar strip, and according to the set length, the cloth is placed to realize the automation of the collar strip process. In addition, this technology can also realize the automatic code adjustment function (accurately adjust the code according to the data input in advance), which changes the disadvantage of semi-automatic collaring where the human hand adjusts the code according to the feeling.

[0004] To achieve the above purpose, the technical solution is as follows:

[0005] A collaring machine for automatically switching sewing, comprising:

[0006] Base;

[0007] A thread feeding mechanism is arranged on the base, which comprises a thread break sensor and a thread rack terminal in sequence to provide sewing thread for subsequent use;

[0008] A head assembly is arranged on the base, and a sewing machine group is arranged on one side thereof, which is used to receive the sewing thread from the thread feeding mechanism for sewing;

[0009] A sewing platform is arranged on one side of the head assembly, a first roller is arranged on its edge side, a first positioning block and a second positioning block are arranged on its upper surface opposite to each other, and a gap between the first positioning block and the second positioning block is used for positioning and transmitting the collar strip during sewing;

[0010] The code adjustment mechanism is opposite to the machine head assembly, and is provided with a frame, a second roller, a driving device, a slide rail and a sliding cavity. The slide rail is arranged on the base, the sliding cavity is arranged below the frame, and the sliding cavity and the slide rail are slidably matched. The driving device is arranged inside the slide rail. The second roller is arranged on one side of the frame and opposite to the first roller. The first roller and the second roller are used for inserting the shirt body and the collar strip. Under the action of the driving device, the second roller can be close to or away from the first roller, so as to be suitable for shirt bodies with different neckline sizes.

[0011] The deflection correction mechanism comprises a deflection correction frame, a deflection correction wheel and a pushing mechanism, wherein the deflection correction frame is hinged on the base, and the deflection correction wheel is at least one and is arranged at the front end of the deflection correction frame. At the beginning, the deflection correction frame is turned over so that the deflection correction wheel is closely attached to the sewing platform, thereby pressing the shirt body to correct the deflection by forward and reverse rotation. The pushing mechanism is also hinged on the base, and its driving end is also hinged on the deflection correction frame. At least one deflection correction sensor is also arranged on the deflection correction frame.

[0012] The switching detection system is arranged on one side of the sewing platform. The detection system is used to drive the sewing platform to switch the sewing method after detecting that the shirt body and the collar strip have reached a specific sewing position.

[0013] In some embodiments, the switching detection system is a switching detection sensor. When the seam where the shirt body and the collar strip have been sewn triggers the detection sensor, it indicates that a specific sewing position has been reached.

[0014] In some embodiments, the switching detection system can detect the number of sewing stitches, and when the number of sewing stitches reaches a preset value, it indicates that the sewing of the front collar or the back collar is completed.

[0015] In some embodiments, the sewing platform is provided with an automatic bone position finding mechanism near the second roller side;

[0016] It includes a bone position detection optical axis, which can move up and down along the sewing platform. When the bone position of the collar moves to the bone position detection optical axis, the bone position detection optical axis is driven to move downward;

[0017] A spring sheet, arranged at the lower end of the bone position detection optical axis, and used for driving the bone position detection optical axis to reset;

[0018] A proximity switch is arranged below the spring sheet and is triggered when the bone position detection optical axis moves downward to determine the position of the bone.

[0019] In some embodiments, an upper insertion piece and a lower insertion piece are provided on one side of the sewing platform. When the automatic bone position finding mechanism obtains the bone position and continues to drive the shirt body and the collar strip to move to the insertion piece, the insertion piece extends out and enters the upper and lower layers of the collar strip. Then the collar strip rotates to the set position and stops rotating. The upper insertion piece extends out to create a gap between the shirt body and the collar strip. Both the upper insertion piece and the lower insertion piece are pushed by the driving cylinder.

[0020] In some embodiments, a cutter is provided on one side of the sewing platform, and the cutter is used to cut the shirt body and the collar strip to make them flush.

[0021] In some embodiments, a collar strip driving wheel for driving the collar strip is provided on the upper side of the frame above the second roller, and a shirt body driving wheel for driving the shirt body is also provided on one side of the collar strip driving wheel. Both the collar strip driving wheel and the shirt body driving wheel are driven by a driving motor.

[0022] In some embodiments, the base is further provided with a positioning track, the positioning track is provided with a plurality of evenly arranged positioning holes, the positioning track is provided with a bearing assembly for supporting the correction mechanism, and the bearing assembly is provided with a positioning pin that cooperates with the positioning holes.

[0023] In some embodiments, a baffle for assisting in cutting the sewing thread is further provided on one side of the sewing platform, and the baffle is provided with a driving cylinder.

[0024] In some embodiments, a touch screen for operation is provided on one side of the base.

[0025] The beneficial effects of this application are:

[0026] 1. Realize automatic bone finding and automatic alignment of the collar, freeing up manpower and automating some collar processes;

[0027] 2. Automatic sewing is realized. Compared with the functions of cloth storage, cloth feeding, deviation correction and sewing which require skilled workers to complete, the present invention can realize digital automatic cloth storage, automatic cloth feeding, automatic deviation correction and automatic sewing, thus automating the collaring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0029] Figure 1 The structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 2 The structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 3 The structure of the embodiment of the present invention is shown in FIG. Figure 3 ;

[0032] Figure 4 The structure of the embodiment of the present invention is shown in FIG. Figure 4 ;

[0033] Figure 5 The structure of the embodiment of the present invention is shown in FIG. Figure 4 ;

[0034] Figure 6 This is a schematic diagram of detecting the state of the seam (the upper part is the shirt body, and the lower part is the collar strip). DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] Please refer to Figure 1-6 As shown, a collaring machine for automatically switching sewing, comprising:

[0037] Base 1;

[0038] The thread feeding mechanism 2 is arranged on the base 1, and comprises a thread break sensor 201 and a thread rack terminal 202 in sequence, so as to provide sewing thread for the subsequent operation;

[0039] A head assembly 3 is arranged on the base 1, and a sewing machine group 301 is provided on one side thereof, which is used to receive the sewing thread from the thread feeding mechanism 2 for sewing;

[0040] The sewing platform 4 is arranged on one side of the head assembly 3, and a first roller 401 is arranged on its edge side, and a first positioning block 402 and a second positioning block 403 are arranged on its upper surface opposite to each other, and the gap between the first positioning block 402 and the second positioning block 403 is used for positioning and transmitting the collar strip during sewing;

[0041] The code adjustment mechanism 5 is opposite to the head assembly 3, and is provided with a frame 501, a second roller 502, a driving device, a slide rail 503 and a sliding cavity 504. The slide rail 503 is arranged on the base 1, and the sliding cavity 504 is arranged below the frame 501, and the sliding cavity 504 is slidably matched with the slide rail 503. The driving device is arranged inside the slide rail 503. The second roller 502 is arranged on one side of the frame 501 and is opposite to the first roller 401. The first roller 401 and the second roller 502 are used for inserting the shirt body and the collar strip. Under the action of the driving device, the second roller 502 can be close to or away from the first roller 401, so as to be suitable for shirt bodies with different neckline sizes. The driving device includes a driving motor, a driving wheel and a driven wheel. The driving wheel, the driven wheel and the frame are connected by a belt.

[0042] The deflection correction mechanism 6 comprises a deflection correction frame 601, a deflection correction wheel 602 (preferably a universal wheel) and a pushing mechanism 603. The deflection correction frame 601 is hinged on the base 1. The deflection correction wheel 602 is provided with at least one and is arranged at the front end of the deflection correction frame 601. At the beginning, the deflection correction frame 601 is turned over so that the deflection correction wheel 602 is closely attached to the sewing platform 4, thereby pressing the shirt body to correct the deflection by forward and reverse rotation. The pushing mechanism 603 is also hinged on the base 1, and its driving end is also hinged to the deflection correction frame 601. The deflection correction frame 601 is also provided with at least one deflection correction sensor 604. Preferably, the pushing mechanism is a pushing cylinder.

[0043] A switching detection system is arranged on one side of the sewing platform 4. The detection system is used to detect that the shirt body and the collar strip have reached a specific sewing position, and then drive the sewing platform 4 to switch the sewing means, that is, the sewing process. In the first embodiment, the switching detection system is a switching detection sensor 7. When the joint of the shirt body and the collar strip that has been sewn triggers the detection sensor, the sewing process is switched;

[0044] Specifically, first, the sewing thread is fed out from the thread feeding mechanism to provide thread for the subsequent shirt body and collar strip;

[0045] Secondly, the collar strip is put on the first roller and the second roller, and the front collar of the shirt body is also put on the first roller and the second roller with the collar facing upwards. The second roller can be adjusted according to the size of the neckline. Under the driving force, the shirt body and the collar strip rotate on the first roller and the second roller;

[0046] Turn on the equipment. Since the curvature of the front collar and the back collar are different, the sewing process is also different. When sewing the front collar, the equipment sews in three sections. The middle part does not allow fabric, and the two sides of the front collar allow fabric. Sewing is carried out in this way. Since the starting sewing point has been closed, the collar strip can reach the switching detection sensor after half of it is sewn. Continue to sew a small section. In this way, the sewing of the front collar is completed, and then refer to Figure 6 , the seam triggers the switching detection sensor;

[0047] After receiving the signal, the device switches to the sewing process of the back collar. At this time, the device no longer holds cloth, and thus sews the front collar and the back collar separately.

[0048] During the whole process, the correction wheel presses the shirt body and performs correction according to the shirt body position (based on the signal of the correction sensor, when the sensor light spot is blocked, the shirt body is pushed outward, and when the sensor photoelectricity is not blocked, the shirt body is pushed inward);

[0049] Automatic sewing: automatic cloth loading, automatic code adjustment, and shirt body rotation functions. The automatic cloth loading function is realized by integrating the sewing needle count measurement function and the digital change of the sewing machine's surface tooth stroke function. The cloth loading position is controlled by real-time measurement of the sewing needle count, and the cloth loading amount is controlled by motor control, thereby controlling the cloth loading of the entire sewing process; the automatic code adjustment function is to achieve accurate code change function through motor control through the parameters input into the machine in advance; the shirt body rotation function is to complete the automatic rotation of the shirt body through the front and rear rollers and the sewing machine's own cloth feeding teeth and blowing device.

[0050] In the second embodiment, the switching detection system can detect the number of sewing stitches. When the number of sewing stitches reaches a preset value, it indicates that the sewing of the front collar or the back collar is completed. The current number of stitches is detected during sewing. If the number of stitches required for the front collar is reached, it indicates that the sewing of the front collar is completed. The sewing process of the back collar is switched. At this time, the specific position is the position for fixing the number of stitches after triggering our seam detection.

[0051] In the third embodiment, the sewing platform 4 is provided with an automatic bone position finding mechanism 8 near the second roller 502;

[0052] It includes a bone position detection optical axis 801, which can move up and down along the sewing platform 4. When the bone position of the collar moves to the bone position detection optical axis 801, the bone position detection optical axis 801 is driven to move downward;

[0053] A spring sheet 802 is provided at the lower end of the bone position detection optical axis 801 and is used to drive the bone position detection optical axis 801 to reset;

[0054] A proximity switch 803 is disposed below the spring sheet 802 and is triggered when the bone position detection optical axis 801 moves downward to determine the position of the bone;

[0055] When the bone position of the collar reaches the bone position detection optical axis, the bone position detection optical axis moves downward, and the spring sheet is pressed down to reach the position of the proximity switch. At this time, the device determines the position of the bone position and automatically finds the bone position. After finding the bone position, the current sewing position can be determined during the sewing process through the position of the bone position, so as to determine whether the front collar or the back collar is sewn.

[0056] Furthermore, an upper inserting piece 9 and a lower inserting piece 91 are provided on one side of the sewing platform 4. When the automatic bone position finding mechanism 8 obtains the bone position and continues to drive the shirt body and the collar strip to move to the inserting piece, the inserting piece 91 extends and enters the upper and lower layers of the collar strip. Then, the collar strip rotates to the set position and stops rotating. The upper inserting piece 9 extends to make a gap between the shirt body and the collar strip. The upper inserting piece 9 and the lower inserting piece 91 are both pushed by the driving cylinder, and the upper inserting piece and the lower inserting piece are pushed out in a sequence.

[0057] The collar driving wheel drives the second roller to rotate, and after the bone position detector is triggered, the machine continues to move forward for a distance to a fixed position, and then the collar driving wheel stops (the rear end of the bone position), and the insertion piece 91 extends out and enters the upper and lower layers of the collar. Then, the collar driving force drives the second roller to rotate to a fixed position and then stops, and the upper insertion piece 9 extends out;

[0058] After the equipment finds the bone position, the collar strip rotates to a distance in front of the upper insertion piece. Since the thickness of the collar strip bone position is different from that of other parts of the collar strip, the gap of the fabric at this position is larger, making it easier for the insertion piece to be inserted. First, the lower insertion piece is inserted between the upper and lower parts of the collar strip to separate the upper and lower parts of the collar strip and avoid contact between the upper and lower parts of the collar strip, so that there is enough margin between the upper and lower parts of the collar strip and the shirt body, affecting the relative movement between the upper and lower parts.

[0059] Furthermore, a cutter 1001 is provided on one side of the sewing platform 4, and the cutter 1001 is used to cut the shirt body and the collar strip to make them flush;

[0060] When the shirt body and collar strip are rotating and reach the cutter, some fabric that exceeds the sewing platform is cut off, thus ensuring that the shirt body and collar strip are completely flush.

[0061] Furthermore, a collar strip driving wheel 1101 for driving the collar strip is disposed above the second roller 502 on the upper side of the frame 501, and a body driving wheel 1102 for driving the body of the shirt is disposed on one side of the collar strip driving wheel 1101. Both the collar strip driving wheel 1101 and the body driving wheel 1102 are driven by a driving motor 1103, and the entire device is driven by a driving cylinder.

[0062] When the insert piece is inserted into the collar strip, the driving cylinder will not push the device out. In the current state, the collar strip driving wheel is in contact with the second roller to drive the collar strip to rotate. After the driving cylinder pushes the device out, the collar strip driving wheel is no longer in contact with the second roller. At this time, the shirt body driving wheel is in contact with the clothes, and the shirt body driving wheel and the second roller clamp the shirt core, and then the shirt body is driven to rotate by the rotation of the shirt body driving wheel.

[0063] Furthermore, the base 1 is further provided with a positioning track 1201, the positioning track 1201 is provided with a plurality of evenly arranged positioning holes 1202, the positioning track 1201 is provided with a bearing assembly 1203 for bearing the deviation correction mechanism 6, and the bearing assembly 1203 is provided with a positioning pin 1204 that cooperates with the positioning hole 1202;

[0064] To facilitate cleaning, first pull out the positioning pin and move the bearing assembly backward on the positioning track so that it can be cleaned or repaired. Finally, after moving to the working position, move the positioning pin down so that the positioning pin and the positioning hole can be fixed together, which is easy to operate.

[0065] Furthermore, a baffle 1301 for assisting in cutting sewing threads is provided on one side of the sewing platform 4. The baffle 1301 is provided with a driving cylinder. The driving cylinder pushes the baffle out, and the baffle pushes the shirt body out as well, thereby assisting the scissors provided by the sewing machine to cut off excess thread after sewing.

[0066] Furthermore, a touch screen 14 for operation is provided on one side of the base 1. When the front collar faces upward, the sewing process of the front collar is first started through the touch screen. When the back collar faces upward, the sewing process of the back collar is first started through the touch screen.

[0067] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other principles and basic structures that are the same or similar to those of the present application are within the protection scope of the present application.

Claims

1. A detection system for automatically switching sewing means, characterized in that: include: A sewing platform (4) is arranged on one side of the machine head assembly (3), and is provided with a first roller (401) on its edge side and a second roller (502) on the other side. The shirt body and the collar strip are inserted into the first roller (401) and the second roller (502). Under the driving force, the shirt body and the collar strip are rotated and transported on the first roller (401) and the second roller (502), and the two are sewn together after passing through the sewing platform (4); A switching detection sensor (7) is arranged on one side of the sewing platform (4). When the joint between the shirt body and the collar strip that have been sewn triggers the detection sensor, it indicates that a specific sewing position has been reached, and the sewing platform (4) is driven to switch the sewing method. After the device obtains the signal, it switches to the sewing process of the back collar. At this time, the device no longer holds cloth, so that the front collar and the back collar are sewn separately. The sewing platform (4) is provided with an automatic bone position finding mechanism (8) located near the second roller (502), comprising a bone position detection optical axis (801), a spring sheet (802) and a proximity switch (803); When the bone position of the collar strip moves to the bone position detection optical axis (801), the bone position detection optical axis (801) is driven to move downward; The bone position detection optical axis (801) presses the spring sheet (802) downward; As the bone position detection optical axis (801) moves downward, the proximity switch (803) is triggered to thereby determine the position of the bone; The spring sheet (802) resets the bone position detection optical axis (801); An upper inserting piece (9) and a lower inserting piece (91) are correspondingly arranged on one side of the sewing platform (4). When the automatic bone position finding mechanism (8) obtains the bone position and continues to drive the shirt body and the collar strip to move to the position of the upper inserting piece (9) and the lower inserting piece (91), the lower inserting piece (91) extends out and enters between the upper and lower layers of the collar strip. Then, the collar strip rotates to a set position and stops rotating. The upper inserting piece (9) extends out to form a gap between the shirt body and the collar strip. The upper inserting piece (9) and the lower inserting piece (91) are both driven by a driving cylinder.

2. A detection system for automatically switching sewing means according to claim 1, characterized in that: The switching detection sensor (7) is a micro switch.

3. A detection system for automatically switching sewing means according to claim 1, characterized in that: A cutter (1001) is provided on one side of the sewing platform (4), and the cutter (1001) is used to cut the shirt body and the collar strip to make them flush.

4. The detection system for automatically switching sewing means according to claim 1, characterized in that: The device further comprises a base (1), wherein the base (1) is provided with a positioning track (1201), wherein the positioning track (1201) is provided with a plurality of evenly arranged positioning holes (1202), wherein the positioning track (1201) is provided with a bearing assembly (1203) for bearing, wherein the bearing assembly (1203) is provided with a positioning pin (1204) cooperating with the positioning hole (1202).

5. The detection system for automatically switching sewing means according to claim 1, characterized in that: A baffle (1301) for assisting in cutting the sewing thread is also provided on one side of the sewing platform (4), and the baffle (1301) is provided with a driving cylinder.

6. A detection system for automatically switching sewing means according to claim 4, characterized in that: A touch screen (14) for operation is provided on one side of the base (1).

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