An upper collar sewing machine with automatic sewing mode switching

Abstract

An upper collar sewing machine with automatic sewing mode switching, comprising: a base; a thread feeding mechanism; a machine head assembly; a sewing platform; a code adjustment mechanism; a deviation rectifying mechanism including a deviation rectifying frame, a deviation rectifying wheel and a pushing mechanism. The deviation rectifying frame is hinged to the base. At least one deviation rectifying wheel is provided and is arranged at the front end of the deviation rectifying frame for rectifying the deviation of the shirt body. The pushing mechanism is also hinged to the base, and its driving end is also hinged to the deviation rectifying frame. At least one deviation rectifying sensor is further provided on the deviation rectifying frame; a switching detection sensor is arranged on one side of the sewing platform. When the joint where the shirt body and the collar strip have been sewn triggers this detection sensor, it drives the sewing platform to switch the sewing method.

Description

Technical Field

[0001] The present invention relates to the field of the textile industry, and particularly to an upper collar machine with automatic sewing switching. Background Art

[0002] In this industry, the collar strip process is divided into fully manual sewing and semi-automatic sewing. Among them, fully manual sewing is the most traditional method. Except for the sewing machine, workers do not use any tools and perform upper collaring manually. In semi-automatic sewing, in addition to the sewing machine, there are devices for automatically aligning and tightening the collar strip. When sewing, workers need to manually align the edges of the neckline and the collar strip, and at the same time manually control the length of the cloth accommodation. Compared with the traditional method, the degree of automation has not been significantly improved, and workers still need very high sewing skills to complete the upper collaring process. Summary of the Invention

[0003] Based on this, the present invention proposes a technology for fully automatic upper collaring. First, workers place the collar strip on the roller, and the machine automatically performs functions such as finding the bone position, aligning the edge of the collar strip, and accurately placing the collar strip. Subsequently, workers cover the shirt body on the collar strip and then can perform sewing. During the sewing process, the machine automatically aligns the edges of the neckline and the collar strip and accommodates the cloth according to the set length to realize the automation of the collar strip process. In addition, this technology can also realize the automatic code adjustment function (accurately adjusting the code according to the pre-input data), which changes the drawback of semi-automatic upper collaring that workers adjust the code according to their feelings.

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

[0005] An upper collar machine with automatic sewing switching, comprising:

[0006] A base;

[0007] A thread feeding mechanism, arranged on the base, which successively includes a thread break sensor and a thread stand terminal to provide sewing thread for subsequent use;

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

[0009] A sewing platform, arranged on one side of the headstock assembly, with a first roller on its edge side, and a first positioning block and a second positioning block are oppositely arranged on its upper surface. The 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 head component, 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 is slidably matched with the slide rail. The driving device is arranged inside the slide rail. The second roller is arranged on one side of the frame and is opposite to the first roller. The first roller and the second roller are used for sleeving the shirt body and the collar strip. Under the action of the driving device, the second roller can approach or move away from the first roller, so as to be applicable to shirt bodies with different neckline sizes;

[0011] The deviation rectifying mechanism includes a deviation rectifying frame, a deviation rectifying wheel and a pushing mechanism. The deviation rectifying frame is hinged on the base. At least one deviation rectifying wheel is provided and is arranged at the front end of the deviation rectifying frame. At the beginning, the deviation rectifying frame flips so that the deviation rectifying wheel closely adheres to the sewing platform, thereby pressing the shirt body and using its forward and reverse rotation to rectify the deviation. The pushing mechanism is also hinged on the base, and its driving end is also hinged to the deviation rectifying frame. At least one deviation rectifying sensor is also provided on the deviation rectifying frame;

[0012] The switching detection system is arranged on one side of the sewing platform. This detection system is used to detect that after the shirt body and the collar strip reach a specific sewing position, it drives the sewing platform to switch the sewing means.

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

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

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

[0016] It includes a bone position detection optical axis that can move up and down along the sewing platform. When the bone position of the collar strip moves to this bone position detection optical axis, it drives the bone position detection optical axis to move down;

[0017] A spring piece is arranged at the lower end of the bone position detection optical axis and is used to drive the bone position detection optical axis to reset;

[0018] A proximity switch is arranged below the spring piece. When the bone position detection optical axis moves downward, this switch is triggered to determine the position of the bone position.

[0019] In some embodiments, an upper insertion piece and a lower insertion piece are provided on one side of the sewing platform. After the automatic bone position finding mechanism obtains the bone position, when it continues to drive the shirt body and the collar strip to move to the insertion piece, the insertion piece extends out and enters between the upper and lower layers of the collar strip. Then, after the collar strip rotates to the set position and stops rotating, the upper insertion piece extends out so that there is a gap between the shirt body and the collar strip. Both the upper insertion piece and the lower insertion piece are pushed by a 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, above the second roller on the upper side of the frame, a collar driving wheel for driving the collar strip is provided, and on one side of the collar driving wheel, a shirt body driving wheel for driving the shirt body is also provided. Both the collar driving wheel and the shirt body driving wheel are driven by a driving motor.

[0022] In some embodiments, a positioning track is further provided on the base. A number of evenly arranged positioning holes are provided on the positioning track. On the positioning track, a carrying component for carrying the deviation rectifying mechanism is provided, and the carrying component is provided with positioning pins cooperating 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 as follows:

[0026] 1. It realizes automatic bone finding and automatic alignment of the upper collar, liberates the human hand, and realizes the automation of some processes of the upper collar.

[0027] 2. It realizes automatic sewing. Compared with the functions of cloth accommodating, cloth feeding, deviation rectifying, and sewing that require skilled workers to complete, the present invention can realize digital automatic cloth accommodating, automatic cloth feeding, automatic deviation rectifying, and automatic sewing, and realizes the automation of the upper collar process. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments.

[0029] Figure 1 It is a schematic structure of an embodiment of the present invention Figure 1 ;

[0030] Figure 2 It is a schematic structure of an embodiment of the present invention Figure 2 ;

[0031] Figure 3 is a schematic structure of an embodiment of the present invention Figure 3 ;

[0032] Figure 4 is a schematic structure of an embodiment of the present invention Figure 4 ;

[0033] Figure 5 is a schematic structure of an embodiment of the present invention Figure 4 ;

[0034] Figure 6 is a schematic diagram for detecting the state of the seam (the upper part is the body of the shirt, and the lower part is the collar strip). Detailed implementation manners

[0035] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to 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 Figures 1-6 as shown, an upper collar machine for automatically switching sewing includes:

[0037] a base 1;

[0038] a thread feeding mechanism 2, arranged on the base 1, which successively includes a thread break sensor 201 and a thread frame terminal 202 to provide sewing thread for subsequent use;

[0039] a machine head assembly 3, arranged on the base 1, with a sewing unit 301 on one side thereof, which is used to receive the sewing thread of the thread feeding mechanism 2 for sewing;

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

[0041] The code adjustment mechanism 5, which is opposite to the machine head assembly 3, 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. 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 sleeving the shirt body and the collar strip. Under the action of the driving device, the second roller 502 can approach or move away from the first roller 401, so as to be applicable to shirt bodies with different neckline sizes. The driving device includes a driving motor, a driving wheel and a driven wheel, and the driving wheel, the driven wheel and the frame are connected by a belt;

[0042] The deviation rectifying mechanism 6 includes a deviation rectifying frame 601, a deviation rectifying wheel 602 (preferably a universal wheel) and a pushing mechanism 603. The deviation rectifying frame 601 is hinged on the base 1. At least one deviation rectifying wheel 602 is provided and is arranged at the front end of the deviation rectifying frame 601. At the beginning, the deviation rectifying frame 601 is flipped so that the deviation rectifying wheel 602 is closely attached to the sewing platform 4, so as to press the shirt body and use its forward and reverse rotation to rectify the deviation. The pushing mechanism 603 is also hinged on the base 1, and its driving end is also hinged to the deviation rectifying frame 601. At least one deviation rectifying sensor 604 is further arranged on the deviation rectifying frame 601. Preferably, the pushing mechanism is a pushing cylinder;

[0043] The switching detection system is arranged on one side of the sewing platform 4. This detection system is used to detect that after the shirt body and the collar strip reach a specific position for sewing, it drives the sewing platform 4 to switch the sewing means, that is, the sewing process. In Embodiment 1, the switching detection system is a switching detection sensor 7. When the seam where the shirt body and the collar strip have been sewn triggers this detection sensor, the sewing process is switched;

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

[0045] Secondly, the collar strip is sleeved on the first roller and the second roller, and the front collar of the shirt body is also sleeved on the first roller and the second roller with the front facing up. 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 device. Since the arcs of the front collar and the rear collar are different, the sewing process is also different. When sewing the front collar, the device sews in three sections. There is no cloth allowance in the middle, and there is cloth allowance on both sides of the front collar. Sew in this way. Since the starting sewing point has been sewn together, the collar strip can reach the switching detection sensor only after sewing half of the seam. Continue sewing for a short section. In this way, the sewing of the front collar is completed. Then refer to Figure 6 , the switching detection sensor is triggered at the sewn joint;

[0047] After the device obtains the signal, it switches to the sewing process of the rear collar. At this time, the device no longer allows cloth, so the front collar and the rear collar are sewn separately;

[0048] During the whole process, during the deviation correction process, the deviation correction wheel presses on the shirt body and performs deviation correction actions according to the position of the shirt body (judged according to the signal of the deviation correction sensor. When the sensor light spot is blocked, the shirt body is pushed outwards, and when the sensor photoelectric is not blocked, the shirt body is pushed inwards);

[0049] Automatic sewing: automatic cloth allowance, automatic code adjustment, and shirt body rotation function. The automatic cloth allowance function is a function realized after integrating the sewing needle number measurement function and the digital function of changing the stroke of the sewing machine surface teeth. The controllability of the cloth allowance part is realized by measuring the number of sewing needles in real time, and the controllability of the cloth allowance amount is realized through motor control, so as to control the cloth allowance in the whole sewing process; the automatic code adjustment function is to realize the accurate code change function through the parameters pre-entered into the machine and motor control; the shirt body rotation function is to complete the automatic rotation function of the shirt body through the front and rear rollers, the feed teeth of the sewing machine itself, and the blowing device.

[0050] Embodiment 2, the switching detection system can detect the number of sewing needles. When the number of sewing needles reaches the preset value, it indicates that the sewing of the front collar or the rear collar is completed. During sewing, the current number of needles is detected. If the number of needles required for the front collar is reached, it indicates that the sewing of the front collar is completed, and the sewing process of the rear collar is switched. At this time, the specific position is the position where the fixed number of needles is triggered after the sewn joint detection.

[0051] Embodiment 3, the sewing platform 4 is provided with an automatic bone position finding mechanism 8 on the side close to the second roller 502;

[0052] It includes a bone position detection optical axis 801 that can move up and down along the sewing platform 4. 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 down;

[0053] A spring piece 802 is arranged at the lower end of the bone position detection optical axis 801 for driving the bone position detection optical axis 801 to reset;

[0054] A proximity switch 803 is arranged below the spring piece 802. When the bone position detection optical axis 801 moves downward, the switch is triggered to determine the position of the bone position;

[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. An upper collar sewing machine with automatic switching, characterized in that, Including: Base (1); Thread feeding mechanism (2), arranged on the base (1), which successively includes a thread break sensor (201) and a thread holder terminal (202) to provide sewing thread for subsequent use; Machine head assembly (3), arranged on the base (1), on one side of which there is a sewing unit (301) for receiving the sewing thread of the thread feeding mechanism (2) to perform sewing; Sewing platform (4), arranged on one side of the machine head assembly (3), on the edge side of which there is a first roller (401), and on the upper surface of which there are a first positioning block (402) and a second positioning block (403) arranged opposite to each other. The gap between the first positioning block (402) and the second positioning block (403) is used to position the collar strip during sewing; Code adjustment mechanism (5), opposite to the machine head assembly (3), which 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), 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 the body and the collar strip to be sleeved. Under the action of the driving device, the second roller (502) can approach or move away from the first roller (401), so as to be applicable to bodies with different neckline sizes; Deviation correction mechanism (6), including a deviation correction frame (601), a deviation correction wheel (602) and a pushing mechanism (603). The deviation correction frame (601) is hinged on the base (1), at least one deviation correction wheel (602) is provided and is arranged at the front end of the deviation correction frame (601). At the beginning, the deviation correction frame (601) flips so that the deviation correction wheel (602) closely adheres to the sewing platform (4), thereby pressing the body tightly and using its forward and reverse rotation for deviation correction. The pushing mechanism (603) is also hinged on the base (1), and its driving end is also hinged to the deviation correction frame (601). At least one deviation correction sensor (604) is also arranged on the deviation correction frame (601); Switching detection system, arranged on one side of the sewing platform (4). This detection system is used to detect that the body and the collar strip reach a specific position during sewing, and then drive the sewing platform (4) to switch the sewing means; On the side of the sewing platform (4) close to the second roller (502), there is an automatic bone position finding mechanism (8), including a bone position detection optical axis (801), a spring piece (802) and a proximity switch (803); When the bone position of the collar strip moves to the bone position detection optical axis (801), it drives the bone position detection optical axis (801) to move downward; The bone position detection optical axis (801) presses down the spring piece (802); When the optical axis (801) for bone position detection moves downward, the proximity switch (803) is triggered to determine the position of the bone position; The spring piece (802) resets the optical axis (801) for bone position detection; On one side of the sewing platform (4), there are an upper insertion piece (9) and a lower insertion piece (91). After the automatic bone position finding mechanism (8) obtains the bone position, when it continues to drive the shirt body and the collar strip to move to this insertion piece, the insertion piece (91) extends out and enters between the upper and lower layers of the collar strip. Then, after the collar strip rotates to the set position and stops rotating, the upper insertion piece (9) extends out so that there is a gap between the shirt body and the collar strip. Both the upper insertion piece (9) and the lower insertion piece (91) are pushed by a driving cylinder; The switching detection system is a switching detection sensor (7). When the seam where the shirt body and the collar strip are already sewn triggers this detection sensor, it indicates that the specific sewing position has been reached.

2. The upper collar machine for automatic switching sewing according to claim 1, characterized in that: The switching detection system can detect the number of sewing stitches. When the number of sewing stitches reaches the preset value, it indicates that the front collar or the rear collar sewing is completed.

3. An upper collar sewing machine with automatic sewing switching according to claim 1, characterized in that: On one side of the sewing platform (4), there is a cutter (1001), and the cutter (1001) is used to cut the shirt body and the collar strip to make them flush.

4. An upper collar sewing machine with automatic sewing switching according to claim 1, characterized in that: Above the second roller (502) on the upper side of the frame (501), there is a collar strip driving wheel (1101) for driving the collar strip. On one side of the collar strip driving wheel (1101), there is also a shirt body driving wheel (1102) for driving the shirt body. Both the collar strip driving wheel (1101) and the shirt body driving wheel (1102) are driven by a driving motor (1103).

5. An upper collar sewing machine with automatic sewing switching according to claim 1, characterized in that: On the base (1), there is also a positioning track (1201). On the positioning track (1201), there are several evenly arranged positioning holes (1202). On the positioning track (1201), there is a carrying component (1203) for carrying the deviation correction mechanism (6). The carrying component (1203) is provided with a positioning pin (1204) that cooperates with the positioning hole (1202).

6. The automatic switching sewing collar attaching machine according to claim 1, wherein: On one side of the sewing platform (4), there is also a baffle (1301) for assisting in cutting the sewing thread. The baffle (1301) is provided with a driving cylinder.

7. An upper collar sewing machine with automatic sewing switching according to claim 1, characterized in that: On one side of the base (1), there is a touch screen (14) for operation.

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