An automatic seaming device and a control method thereof

Abstract

The application discloses an automatic sewing machine, aiming to provide an automatic sewing device and a control method thereof, which integrates sewing, counting, material collecting and waste collecting into one, and the technical scheme is that an automatic material collecting structure is arranged, which can automatically collect materials after determining that the material processing is completed, a counting device is arranged in the sewing machine group, and the counting operation is simultaneously performed while the material is collected, so that the labor intensity of workers is reduced, the processing state of the material and the thickness of the material are judged through a pressing assembly, so that subsequent material collecting operation is performed, and the material collecting assembly is dynamically adjusted, accurate and efficient material collecting is realized, and coherent and efficient automatic processing is formed, and the application is suitable for the technical field of sewing machines.

Description

Technical Field

[0001] This invention relates to an automatic seam sealing machine, and more specifically, to an automatic seam sealing device and its control method. Background Technology

[0002] In the process of sewing multiple layers of fabric, a sewing machine is usually used to sew the fabric. The sewing machine has a drive part that can sew the thread at a fixed speed, so as to form a neat, beautiful, flat and strong sewing track. It is fast in sewing fabric, simple to operate, and suitable for sewing large quantities of fabric.

[0003] However, although sewing machines on the market can achieve relatively automated sewing, workers still inevitably need to manually remove and stack the finished fabric during operation. Furthermore, when calculating piecework, workers need to manually count or calculate the number of stacked fabrics during processing, which increases the labor intensity of workers and reduces processing efficiency. In addition, traditional sewing machines cannot detect thread breaks in real time during processing; usually, broken or missing threads can only be detected after a single sewing is completed, resulting in poor processing quality. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an automatic sewing device and its control method that can automatically collect processed fabric, has high processing efficiency, can automatically count pieces during processing, and can actively judge the state of the seams.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic sewing device, comprising a mounting platform, wherein the mounting platform is provided with a sewing device, a thread feeding device disposed on one side of the sewing device, and a fabric placement platform disposed on the other side of the sewing device; the sewing device includes a sewing machine unit disposed on the mounting platform and a processing rod disposed on the side of the sewing machine unit near the fabric placement platform; the processing rod is configured to cut and sew the fabric in the fabric placement platform; a material receiving structure is also provided on one side of the mounting platform for storing the sewn fabric.

[0006] The invention is further configured such that: the top of the sewing machine unit is also provided with a pressing assembly, the pressing assembly including a mounting bracket disposed on the top of the sewing machine unit and a pressing rod disposed within the mounting bracket; a pushing cylinder is also provided between the pressing rod and the mounting bracket, the pushing cylinder being configured to drive the pressing rod to abut against the fabric placement table. The invention is further configured such that: the receiving structure includes a storage rack disposed at the bottom of the mounting table and extending to the outside of the mounting table, a receiving cylinder disposed between the storage rack and the mounting table, and an air blowing pipe disposed on the side wall of the mounting table; the air blowing pipe being configured to blow the processed fabric into the storage rack.

[0007] The present invention is further configured such that: the receiving structure includes a material storage rack disposed at the bottom of the mounting platform and extending to the outside of the mounting platform, a receiving cylinder disposed between the material storage rack and the mounting platform, and an air blowing pipe disposed on the side wall of the mounting platform, wherein the air blowing pipe is configured to blow the processed fabric into the material storage rack.

[0008] The invention is further configured such that: the processing rod is provided with a drive wheel, a sewing needle and a processing cutter; an electromagnet is provided on one side of the processing rod; and a baffle is provided on the side of the fabric placement platform near the processing rod. The baffle extends into the processing rod and forms a processing area for sewing fabric with the processing rod.

[0009] The invention is further configured such that: the thread feeding device includes a thread rack disposed on a mounting platform and a placement tray disposed on the thread rack, the placement tray being configured to place a thread roll, and the thread being led out from the placement tray and connected to a sewing needle.

[0010] Preferably, the mounting platform is further provided with a waste disposal device, which has a waste hole penetrating the mounting platform and a waste pipe disposed in the waste hole. The other end of the waste pipe is provided with a waste collection bag. The position of the waste hole matches the position of the cutter inside the processing rod. An air pump is provided inside the waste pipe. The air pump operates intermittently to evacuate the waste pipe. The waste disposal device is used to guide and collect the waste generated by the cutter.

[0011] The invention is further configured such that: a hinge is provided in the processing area of ​​the fabric placement table, and the hinge is configured to control the processing area to flip along a direction perpendicular to the movement of the fabric.

[0012] This application also provides a control method for an automatic sewing device, including the following steps: S1, based on the needs of the sewing thread, installing the sewing thread roll of the corresponding pattern into the placement tray on the sewing thread frame, and drawing the sewing thread in the sewing thread roll out to the sewing needle on the processing rod through the sewing machine unit;

[0013] S2. Place the fabric to be sewn on the fabric placement table, ensuring that the edge of the fabric to be sewn is flush with the baffle of the fabric placement table.

[0014] S3. The sewing device is started. The electromagnet drives the processing cutter and sewing needle to reciprocate in the vertical direction. At the same time, the fabric on the processing rod moves the fabric at the fabric placement table, cutting the edge of the fabric and completing the sewing at the same time.

[0015] S4. The processing rod detects the sewing status of the fabric. If the sewing of the fabric is completed, the sewing thread is cut to complete the sewing, and the process jumps to S5 to collect the fabric. Otherwise, if the sewing of the fabric is not completed, the sewing of the current fabric continues.

[0016] S5. The pressing rod of the pressing assembly is pushed by the pushing cylinder and abuts against the fabric placement table. The fabric in the fabric placement table is fixed by the pressing rod, and part of the fabric extends into the receiving structure.

[0017] S6. The receiving cylinder of the receiving structure pushes the fabric to the storage rack, and clamps the fabric through the storage rack and the receiving cylinder. After the fabric is clamped, the air pipe blows the fabric and makes it flip and hang on the storage rack. The receiving cylinder retracts to complete the receiving process.

[0018] Preferably, the pressure bar is equipped with a displacement detection device and a pressure sensor. Step S6 further includes air volume control, which includes the following steps: S61, the pressure bar moves in the direction of fabric fabrication, and at the same time the pressure sensor detects the pressure P on the top of the pressure bar.

[0019] S62. Detect P. If P=0, it is determined that the current pressure bar is not in contact with the fabric, and the pressure bar continues to move. Otherwise, if P≠0, it is determined that the current pressure bar is in contact with the fabric, and the displacement detection device detects the moving distance L of the pressure bar.

[0020] S63. Set the maximum moving distance of the pressure bar to Lm. If Lm-L≥1, it is determined that the current fabric thickness is large, and the sewing device increases the blowing force of the air pipe. Conversely, if Lm-L<1, it is determined that the current fabric thickness is small, and the sewing device keeps the blowing force of the air pipe unchanged.

[0021] Preferably, a gap for the fabric to pass through is provided between the fabric placement platform and the drive wheel, and a pressure sensor is also provided on the drive wheel. The sewing status detection in step S4 includes the following steps: S41, during the sewing process, the pressure sensor detects the pressure received, and the detection value is Y0.

[0022] S42. Compare Y0. If Y0≠0, it is determined that there is fabric between the current fabric and the fabric placement table. Continue running and move the fabric. Otherwise, if Y0=0, it is determined that there is no fabric between the current fabric and the fabric placement table. The sewing process of the current fabric is completed, and the current fabric is collected.

[0023] During the process of taking in the sewn fabric, if the length of the fabric is too large, the length of the fabric on one side of the take-up frame will be greater than the length of the fabric on the other side, making the fabric easy to fall after hanging. Conversely, if the length of the fabric is too small, the fabric will leave the fabric placement table when the take-up cylinder is pushed, affecting the take-up effect. Therefore, it is necessary to adjust the distance between the take-up frame and the fabric placement table.

[0024] To control the distance of the take-up rack, the fabric length is calculated during the sewing process, i.e., the amount of material fed from the start to the end of sewing, L1. A fixed length L is set as the hanging length of the fabric when taking it up. This fixed length is the distance between the pressure bar and the edge of the mounting platform near the take-up structure. If L1 > 2L, the fabric hanging at one end of the take-up rack is too long when taking it up. The take-up rack needs to be adjusted to move away from the mounting platform so that the distance between the take-up rack and the mounting platform is 0.5L1.

[0025] Meanwhile, during the process of detecting the fabric thickness, after the pressure bar presses the fabric, the pressure on the pressure bar is detected, and a normal pressure value of N is set. N is the pressure when the fabric is pressed against the fabric placement table during the pressing process. Generally, when there are no impurities at the bottom of the fabric, the pressure detected by the pressure bar is the normal value. Conversely, if there are impurities at the bottom of the fabric, the pressure detected by the pressure bar is > N. By detecting the pressure value, the stability of the pressure bar pressing the fabric is ensured, and impurities at the bottom of the fabric are prevented from affecting the material collection effect.

[0026] By adopting the above technical solution, the following beneficial effects are achieved: 1. In the sewing process, this application, by setting an automated material collection structure, can automatically perform material collection operations after determining that the fabric processing is complete, replacing manual stacking and storage operations. Furthermore, by setting a counting device within the sewing machine unit to match the material collection structure, piece counting operations can be performed simultaneously with material collection, reducing the labor intensity of workers. Additionally, a displacement detection device and a pressure sensor are installed inside the pressure bar. The pressure sensor can determine the current contact state between the pressure bar and the fabric placement table. When the pressure value ≠ 0, it is determined that the pressure bar is pressing down on the fabric. Subsequently, the displacement sensor detects the movement distance of the pressure bar and obtains the current fabric thickness. Finally, based on... The blowing force of the air pipe is controlled according to the thickness of the fabric being processed. For example, when the fabric is thick after sewing, a larger blowing force is required to turn it over. At the same time, the pressure is used to detect whether the fabric processing is complete, so as to carry out the subsequent material collection operation. This forms a continuous and efficient automated processing, forming a fully automated detection and processing of the fabric from sewing to material collection, avoiding manual intervention and improving production efficiency. In addition, the mounting table is equipped with a waste disposal device. During the sewing process, the waste materials after cutting, such as discarded fabric edges and thread ends, can be directly discharged through the waste disposal device to prevent the accumulation of waste materials on the processing table from affecting the processing effect. Furthermore, the air pump is intermittent, saving energy consumption.

[0027] 2. Furthermore, in the material receiving process, this application utilizes a pressing assembly on top of the sewing machine unit. This pressing assembly includes a mounting bracket on top of the sewing machine unit and a pressing rod within the mounting bracket. The pressing rod abuts against the fabric placement table by pushing a cylinder. Specifically, after sewing, the fabric moves to the end of the fabric placement table. If the sewn fabric is too long, and the length of the fabric on the placement table is less than the length of fabric exposed outside the placement table, the fabric will slip directly. Before receiving the material, the pressing assembly presses the fabric... After the fabric is fixed, the take-up cylinder pushes the fabric to contact the storage rack, fixing both ends of the fabric. At the same time, in order to stack and store the fabric at the storage rack, the pressure rod cancels the fixing of the fabric, and the fabric is blown by the air pipe. Due to the contact of the storage rack, the fabric can be reversed and hung on the storage rack. Furthermore, the distance of the storage rack extending to the outside of the mounting platform can be adjusted, thereby changing the length of the fabric fixed after the take-up cylinder contacts the fabric, ensuring the consistency of the fabric length at both ends of the storage rack, and avoiding the problem of the fabric falling after stacking.

[0028] 3. Simultaneously, during the sewing process, this application incorporates a displacement detection device and a pressure sensor. Specifically, it detects the pressure on the pressure bar. When the pressure value P=0, it indicates that the pressure bar is not in contact with the fabric, and the pressure bar continues to move. Conversely, if the pressure value P≠0, it is determined that the pressure bar is in contact with the fabric. The movement distance of the pressure bar is detected, and the displacement detection device detects the movement distance of the pressure bar as L. The maximum movement distance of the pressure bar is Lm, and the fabric thickness is Lm-L. The sewing device adjusts the blowing force of the air pipe based on the fabric thickness. This design allows for the detection of the fabric thickness during sewing, enabling fabrics of different thicknesses to be blown and collected in one go, thus improving the processing quality and pass rate of the product.

[0029] 4. Furthermore, this application includes a pressure sensor, which is used to detect the position of the fabric. When the fabric is being sewn, it inevitably needs to pass through the gap between itself and the fabric placement table, and pressure is applied. At this time, Y0≠0. Conversely, when the fabric is finished, there is no fabric between itself and the fabric placement table, and Y0=0. The state of the fabric can be determined directly and quickly, with high detection accuracy. Based on the detection, the subsequent pressing and receiving processes can be directly controlled. The processing between each process is continuous, avoiding waiting during process switching and ensuring the smoothness and efficiency of the automated production process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a specific structure of an embodiment of an automatic seam closing device and its control method according to the present invention;

[0031] Figure 2 This is a schematic diagram of a specific structure from another perspective of an embodiment of an automatic seam closing device and its control method according to the present invention.

[0032] Figure 3 This is a flowchart illustrating the control method of an embodiment of an automatic seam closing device and its control method according to the present invention.

[0033] Figure 4 This is a flowchart of the air volume control method according to an embodiment of an automatic seam closing device and its control method of the present invention.

[0034] Figure 5 This is a flowchart of a sewing state detection method according to an embodiment of an automatic seam closing device and its control method of the present invention.

[0035] The attached diagram contains the following labels: 1. Mounting platform; 2. Sewing device; 21. Sewing machine unit; 22. Processing rod; 23. Sewing needle; 24. Electromagnet; 25. Baffle; 3. Thread feeding device; 31. Thread rack; 32. Placement tray; 4. Fabric placement platform; 5. Material receiving structure; 51. Material storage rack; 52. Material receiving cylinder; 53. Air blowing pipe; 6. Material pressing assembly; 61. Mounting bracket; 62. Material pressing rod; 63. Pushing cylinder; 7. Waste disposal device; 71. Waste hole; 72. Waste pipe; 73. Waste collection bag; 74. Air pump. Detailed Implementation

[0036] Reference Figures 1 to 5 The embodiments of the automatic seam closing device and its control method of the present invention will be further described.

[0037] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0038] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0039] An automatic sewing device includes a mounting platform 1, on which a sewing device 2, a thread feeding device 3 disposed on one side of the sewing device 2, and a fabric placement platform 4 disposed on the other side of the sewing device 2 are provided. The sewing device 2 includes a sewing machine unit 21 disposed on the mounting platform 1 and a processing rod 22 disposed on the side of the sewing machine unit 21 near the fabric placement platform 4. The processing rod 22 is configured to cut and sew the fabric in the fabric placement platform 4. A material receiving structure 5 is also provided on one side of the mounting platform 1 for storing the sewn fabric.

[0040] The sewing machine assembly 21 is also provided with a pressing component 6 on its top. The pressing component 6 includes a mounting bracket 61 disposed on the top of the sewing machine assembly 21 and a pressing rod 62 disposed within the mounting bracket 61. A pushing cylinder 63 is also provided between the pressing rod 62 and the mounting bracket 61. The pushing cylinder 63 is configured to drive the pressing rod 62 to abut against the fabric placement table 4. The invention is further configured such that the receiving structure 5 includes a storage rack 51 disposed at the bottom of the mounting table 1 and extending to the outside of the mounting table 1, a receiving cylinder 52 disposed between the storage rack 51 and the mounting table 1, and an air blowing pipe 53 disposed on the side wall of the mounting table 1. The air blowing pipe 53 is configured to blow the processed fabric into the storage rack 51.

[0041] The material receiving structure 5 includes a material storage rack 51 located at the bottom of the mounting platform 1 and extending to the outside of the mounting platform 1, a material receiving cylinder 52 located between the material storage rack 51 and the mounting platform 1, and an air blowing pipe 53 located on the side wall of the mounting platform 1. The air blowing pipe 53 is configured to blow the processed fabric into the material storage rack 51.

[0042] The processing rod 22 is equipped with a drive wheel, a sewing needle 23 and a processing cutter. An electromagnet 24 is provided on one side of the processing rod 22. A baffle 25 is also provided on the side of the fabric placement table 4 near the processing rod 22. The baffle 25 extends into the processing rod 22 and forms a processing area for sewing fabric with the processing rod 22.

[0043] The thread feeding device 3 includes a thread rack 31 mounted on the mounting platform 1 and a placement tray 32 mounted on the thread rack 31. The placement tray 32 is configured to hold the thread roll, and the thread is led out from the placement tray 32 and connected to the sewing needle 23.

[0044] Preferably, the mounting platform 1 is further provided with a waste disposal device 7. The waste disposal device 7 has a waste hole 71 penetrating the mounting platform 1 and a waste pipe 72 disposed in the waste hole 71. The other end of the waste pipe 72 is provided with a waste collection bag 73. The position of the waste hole 71 matches the position of the cutter inside the processing rod 22. An air pump 74 is provided inside the waste pipe 72. The air pump 74 operates intermittently to evacuate the waste pipe 72. The waste disposal device 7 is used to guide and collect the waste generated by the cutter.

[0045] The processing area of ​​the fabric placement table 4 is provided with a hinge, which is configured to control the processing area to flip along a direction perpendicular to the movement of the fabric.

[0046] This application also provides a control method for an automatic sewing device, including the following steps: S1, based on the needs of the sewing thread, installing the sewing thread roll of the corresponding pattern into the placement tray on the sewing thread frame, and drawing the sewing thread in the sewing thread roll out to the sewing needle on the processing rod through the sewing machine unit;

[0047] S2. Place the fabric to be sewn on the fabric placement table, ensuring that the edge of the fabric to be sewn is flush with the baffle of the fabric placement table.

[0048] S3. The sewing device is started. The electromagnet drives the processing cutter and sewing needle to reciprocate in the vertical direction. At the same time, the fabric on the processing rod moves the fabric at the fabric placement table, cutting the edge of the fabric and completing the sewing at the same time.

[0049] S4. The processing rod detects the sewing status of the fabric. If the sewing of the fabric is completed, the sewing thread is cut to complete the sewing, and the process jumps to S5 to collect the fabric. Otherwise, if the sewing of the fabric is not completed, the sewing of the current fabric continues.

[0050] S5. The pressing rod of the pressing assembly is pushed by the pushing cylinder and abuts against the fabric placement table. The fabric in the fabric placement table is fixed by the pressing rod, and part of the fabric extends into the receiving structure.

[0051] S6. The receiving cylinder of the receiving structure pushes the fabric to the storage rack, and clamps the fabric through the storage rack and the receiving cylinder. After the fabric is clamped, the air pipe blows the fabric and makes it flip and hang on the storage rack. The receiving cylinder retracts to complete the receiving process.

[0052] Preferably, the pressure bar is equipped with a displacement detection device and a pressure sensor. Step S6 further includes air volume control, which includes the following steps: S61, the pressure bar moves in the direction of fabric fabrication, and at the same time the pressure sensor detects the pressure P on the top of the pressure bar.

[0053] S62. Detect P. If P=0, it is determined that the current pressure bar is not in contact with the fabric, and the pressure bar continues to move. Otherwise, if P≠0, it is determined that the current pressure bar is in contact with the fabric, and the displacement detection device detects the moving distance L of the pressure bar.

[0054] S63. Set the maximum moving distance of the pressure bar to Lm. If Lm-L≥1, it is determined that the current fabric thickness is large, and the sewing device increases the blowing force of the air pipe. Conversely, if Lm-L<1, it is determined that the current fabric thickness is small, and the sewing device keeps the blowing force of the air pipe unchanged.

[0055] Preferably, a gap for the fabric to pass through is provided between the fabric placement platform and the drive wheel, and a pressure sensor is also provided on the drive wheel. The sewing status detection in step S4 includes the following steps: S41, during the sewing process, the pressure sensor detects the pressure received, and the detection value is Y0.

[0056] S42. Compare Y0. If Y0≠0, it is determined that there is fabric between the current fabric and the fabric placement table. Continue running and move the fabric. Otherwise, if Y0=0, it is determined that there is no fabric between the current fabric and the fabric placement table. The sewing process of the current fabric is completed, and the current fabric is collected.

[0057] During the process of taking in the sewn fabric, if the length of the fabric is too large, the length of the fabric on one side of the take-up frame will be greater than the length of the fabric on the other side, making the fabric easy to fall after hanging. Conversely, if the length of the fabric is too small, the fabric will leave the fabric placement table 4 when the take-up cylinder 52 is pushed, affecting the take-up effect. Therefore, it is necessary to adjust the distance between the take-up frame and the fabric placement table 4.

[0058] To control the distance of the take-up rack, the fabric length is calculated during the sewing process, i.e., the amount of material fed from the start to the end of sewing, L1. A fixed length L is set as the hanging length for detecting the fabric during take-up. This fixed length is the distance between the pressure bar 62 and the edge of the mounting platform 1 near the take-up structure 5. If L1 > 2L, the fabric hanging at one end of the take-up rack is too long during take-up, and the take-up rack needs to be adjusted to move away from the mounting platform 1 so that the distance between the take-up rack and the mounting platform 1 is 0.5L1.

[0059] Meanwhile, during the process of detecting the thickness of the fabric, after the pressure rod 62 presses the fabric, the pressure on the pressure rod 62 is detected, and the normal value of the pressure is set to N. N is the pressure when the fabric is pressed against the fabric placement platform 4 during the pressing process of the pressure rod 62. Generally speaking, when there are no impurities at the bottom of the fabric, the pressure detected by the pressure rod 62 is the normal value. Conversely, if there are impurities at the bottom of the fabric, the pressure value detected by the pressure rod 62 is > N. By detecting the pressure value, the stability of the pressure rod 62 when pressing the fabric is ensured, and the presence of impurities at the bottom of the fabric can be prevented from affecting the material collection effect.

[0060] In the sewing process, this application incorporates an automated material collection structure 5, which automatically collects the fabric upon completion of processing, replacing manual stacking and storage. Furthermore, by integrating a counting device within the sewing machine unit 21 to match the material collection structure 5, piece counting is performed simultaneously with material collection, reducing the labor intensity of workers. Additionally, a displacement detection device and a pressure sensor are installed within the pressure rod 62. The pressure sensor determines the contact state between the pressure rod 62 and the fabric placement table 4; when the pressure value is not equal to 0, it indicates that the pressure rod 62 is pressing down on the fabric. Subsequently, the displacement sensor detects the movement distance of the pressure rod 62 and obtains the current fabric thickness. Finally, based on the processed fabric... The thickness control air blowing force of the air blowing pipe 53 is adjusted. For example, when the fabric is thick after sewing, a larger air blowing force is required to turn it over. At the same time, the pressure is used to detect whether the fabric processing is complete, so as to carry out the subsequent material collection operation. This forms a continuous and efficient automated processing, forming a fully automated detection and processing of the fabric from sewing to material collection, avoiding manual intervention and improving production efficiency. In addition, the mounting table 1 is equipped with a waste disposal device 7. During the sewing process, the cut waste materials, such as discarded fabric edges and thread ends, can be directly discharged through the waste disposal device 7 to prevent the accumulation of waste materials on the processing table from affecting the processing effect. In addition, the air pump 74 performs intermittent air extraction, saving energy consumption.

[0061] Furthermore, in the material receiving process, this application provides a pressing assembly 6 on the top of the sewing machine unit 21. The pressing assembly 6 includes a mounting bracket 61 on the top of the sewing machine unit 21 and a pressing rod 62 within the mounting bracket 61. The pressing rod 62 abuts against the fabric placement table 4 by pushing the cylinder 63. Specifically, after the fabric is sewn, it moves to the end of the fabric placement table 4. If the sewn fabric is too long, and the length of the fabric on the fabric placement table 4 is less than the length of the fabric exposed outside the fabric placement table 4, the fabric will slip directly. Before receiving the material, the pressing assembly 6 presses the fabric to prevent it from falling. After the fabric is fixed, the take-up cylinder 52 pushes the fabric to contact the storage rack 51, fixing both ends of the fabric. At the same time, in order to achieve stacking and storage of the fabric at the storage rack 51, the pressure rod 62 cancels the fixing of the fabric and blows the fabric through the air pipe 53. Due to the contact of the storage rack 51, the fabric can be reversed and hung on the storage rack 51. Furthermore, the distance of the storage rack 51 extending to the outside of the mounting platform 1 can be adjusted, thereby changing the length of the fabric fixed after the take-up cylinder 52 contacts the fabric, ensuring the consistency of the fabric length at both ends of the storage rack 51, and avoiding the problem of the fabric falling after stacking.

[0062] Meanwhile, during the sewing process, this application utilizes a displacement detection device and a pressure sensor. Specifically, it detects the pressure on the pressure bar 62. When the pressure value P=0, it indicates that the pressure bar 62 is not in contact with the fabric, and the pressure bar 62 continues to move. Conversely, if the pressure value P≠0, it is determined that the pressure bar 62 is in contact with the fabric. The movement distance of the pressure bar 62 is detected, and the displacement detection device detects that the movement distance of the pressure bar 62 is L. The maximum movement distance of the pressure bar 62 is Lm, and the fabric thickness is Lm-L. The sewing device 2 adjusts the blowing force of the air pipe 53 based on the fabric thickness. This design allows for the detection of the fabric thickness during sewing, enabling fabrics of different thicknesses to be blown and collected in one go, thus improving the processing quality and pass rate of the product.

[0063] Furthermore, this application includes a pressure sensor, which is used to detect the position of the fabric. When the fabric is being sewn, it inevitably needs to pass through the gap between itself and the fabric placement table 4, and pressure is applied to it. At this time, Y0≠0. Conversely, when the fabric is finished, there is no fabric between itself and the fabric placement table 4, and Y0=0. This allows for a direct and rapid determination of the fabric's state, with high detection accuracy. Based on this detection, subsequent pressing and receiving processes can be directly controlled. The processing between each step is seamless, avoiding waiting during process switching and ensuring a smooth and efficient automated production process.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic jointing device comprising a mounting table (1), characterized in that, The mounting table (1) is provided with a sewing device (2), a thread feeding device (3) arranged on one side of the sewing device (2), and a cloth placing table (4) arranged on the other side of the sewing device (2). The sewing device (2) comprises a sewing machine group (21) arranged on the mounting table (1), and a processing rod (22) arranged on the side of the sewing machine group (21) close to the cloth placing table (4). The processing rod (22) is configured to cut and sew the cloth in the cloth placing table (4). The mounting table (1) is also provided with a material collecting structure (5) on one side, which is used to store the finished cloth. The top of the sewing machine group (21) is also provided with a material pressing assembly (6), which comprises a mounting bracket (61) arranged on the top of the sewing machine group (21) and a pressing rod (62) arranged in the mounting bracket (61). A push cylinder (63) is arranged between the pressing rod (62) and the mounting bracket (61). The push cylinder (63) is configured to drive the pressing rod (62) to abut against the cloth placing table (4). The material collecting structure (5) comprises a material storage rack (51) arranged at the bottom of the mounting table (1) and extending to the outside of the mounting table (1), a material collecting cylinder (52) arranged between the material storage rack (51) and the mounting table (1), and a blowing pipe (53) arranged on the side wall of the mounting table (1). The blowing pipe (53) is configured to blow the finished cloth into the material storage rack (51). In addition, a displacement detection device and a pressure sensor are arranged in the pressing rod (62). The pressure sensor can determine the abutting state of the pressing rod (62) and the cloth placing table (4). When the pressure value ≠ 0, it is determined that the pressing rod (62) presses the cloth. Then, the displacement sensor detects the moving distance of the pressing rod (62) to obtain the thickness of the current cloth. Finally, the blowing force of the blowing pipe (53) is controlled based on the thickness of the processed cloth.

2. An automatic seaming device according to claim 1, wherein The processing rod (22) is provided with a driving wheel, a sewing needle (23), and a processing cutter. An electromagnet (24) is arranged on one side of the processing rod (22). A baffle (25) is arranged on the side of the cloth placing table (4) close to the processing rod (22). The baffle (25) extends into the processing rod (22) and forms a processing area for sewing cloth with the processing rod (22).

3. An automatic seaming device according to claim 1, wherein The thread feeding device (3) comprises a thread rack (31) arranged on the mounting table (1) and a placing disc (32) arranged on the thread rack (31). The placing disc (32) is configured to place a thread roll. The thread is drawn out from the placing disc (32) and connected with the sewing needle (23).

4. An automatic seaming device according to claim 1, wherein The installation table (1) is further provided with a waste treatment device (7), the waste treatment device (7) has a waste hole (71) penetrating through the installation table (1) and a waste pipeline (72) arranged in the waste hole (71), one end of the waste pipeline (72) is provided with a waste collection bag (73), the position of the waste hole (71) matches the position of the cutting knife in the processing rod (22), the waste pipeline (72) is provided with a vacuum pump (74), the vacuum pump (74) intermittently operates to vacuumize the waste pipeline (72), and the waste treatment device (7) is used for guiding and accommodating the waste formed by the cutting knife.

5. A control method for an automatic jointing device according to any one of claims 1 to 4, characterized in that, The method comprises the following steps: S1, based on the need of the sewing thread, the corresponding pattern of the sewing thread roll is installed into the placing disc on the sewing frame, and the sewing thread in the sewing thread roll is led out to the sewing needle on the processing rod through the sewing machine group; S2, the cloth to be sewn is placed on the cloth placing table, and the edge of the cloth to be sewn is matched with the baffle of the cloth placing table; S3, the sewing device is started, the electromagnet drives the processing cutting knife and the sewing needle to reciprocate in the vertical direction, and the cloth at the cloth placing table driven by the processing rod moves, the edge of the cloth is cut, and the sewing is completed at the same time; S4, the processing rod detects the sewing state of the cloth, if the sewing of the cloth is completed, the sewing is completed by cutting the sewing thread, and S5 is jumped to collect the material, otherwise, if the sewing of the cloth is not completed, the current cloth is continuously sewn; S5, the pressing rod of the pressing assembly is pushed by the pushing cylinder, and is abutted with the cloth placing table, the cloth in the cloth placing table is fixed by the pressing rod, and part of the cloth extends to the material collecting structure; S6, the material collecting cylinder of the material collecting structure pushes the cloth to the storage rack, and clamps the cloth through the storage rack and the material collecting cylinder, after the cloth is clamped, the air blowing pipe blows the cloth and makes it turn over and hang on the storage rack, and the material collecting cylinder is retracted to complete the material collecting process.

6. The control method of an automatic seaming apparatus according to claim 5, wherein The displacement detection device and the pressure sensor are arranged in the pressing rod, the step S6 further comprises air blowing amount control, which comprises the following steps: S61, the pressing rod moves to the cloth direction, and the pressure sensor detects the pressure P on the top of the pressing rod; S62, P is detected, if P=0, it is judged that the current pressing rod is not abutted with the cloth, the pressing rod continues to move, otherwise, if P≠0, it is judged that the current pressing rod is abutted with the cloth, and the displacement detection device detects the moving distance L of the pressing rod; S63, the maximum moving distance of the pressing rod is set as Lm, if Lm-L≥1, it is judged that the current cloth thickness is large, the sewing device increases the blowing intensity of the air blowing pipe, otherwise, if Lm-L<1, it is judged that the current cloth thickness is small, and the sewing device keeps the blowing intensity of the air blowing pipe unchanged.

7. The control method of an automatic seaming apparatus according to claim 5, wherein The gap for passing the cloth is arranged between the driving wheel and the cloth placing table, the pressure sensor is further arranged on the driving wheel, and the sewing state detection of the step S4 comprises the following steps: S41, in the process of sewing, the pressure sensor detects the pressure, and the detection value is Y0; S42, alignment is performed on Y0, if Y0≠0, it is judged that there is cloth between the current position and the cloth placing table, the running is continued and the cloth is moved, otherwise, if Y0=0, it is judged that there is no cloth between the current position and the cloth placing table, the current cloth sewing processing is completed, and the current cloth is collected.

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