A net foot sewing machine with automatic hemming and material collecting

Abstract

The utility model provides a kind of net foot sewing equipment of automatic edge folding material collection, it is related to automatic sewing device technical field, including sewing machine head subassembly, the front end of sewing machine head subassembly is provided with automatic thread hook subassembly, and automatic thread hook subassembly includes the thread hook driven by power component;Thread hook is by pulling out and putting into net twine in sewing process, to realize the switching of sewing thread between "Hassan line" and "double line";The side of sewing machine head subassembly is also provided with edge folding laying subassembly, and the edge of cloth is folded by edge folding laying subassembly, and transfer mechanism is provided above edge folding laying subassembly, and transfer mechanism sends the folded cloth into the sewing machine sewing place of sewing machine head subassembly.The utility model has the beneficial effect that it can automatically convert stitch between "Hassan line" and "double line" when sewing, and operator only needs to lay cloth, and equipment can automatically complete a series of actions such as sewing and material collection, greatly reduces manual operation, realizes the automation of clothing net foot process, and improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automatic sewing device technology, and in particular to an automatic folding and gathering material sewing machine for mesh feet. Background Technology

[0002] With the rapid development of technology, the garment industry is undergoing profound changes, with more and more processes being completed using automated equipment. This not only improves production efficiency but also significantly enhances product quality. In the sewing process, there is a crucial step – the "mesh hem," located at the very bottom of the garment. This involves carefully folding the fabric all the way inwards before sewing.

[0003] The significance of the "mesh hem" process goes beyond aesthetics. Visually, garments treated with the "mesh hem" have neater, more refined lines at the bottom, resulting in a more aesthetically pleasing and sophisticated overall look, giving a high-quality visual impression. In terms of quality, the cut edges of the fabric at the bottom of the garment are tightly bound by the "mesh hem," effectively preventing the fabric from unraveling. Especially during daily wear and washing, the bottom of the garment is often subjected to considerable friction and stretching. Without the protection of the "mesh hem," the fabric is prone to problems such as unraveling and frayed edges. The "mesh hem" process greatly enhances the durability of the garment, further ensuring its overall quality.

[0004] When performing the "mesh foot" operation on the bottom of garments, a sewing machine is a commonly used piece of equipment. A sewing machine can sew both "Hasselblad stitch" and two simple parallel lines, also known as "double stitch." Switching between "Hasselblad stitch" and "double stitch" on the sewing machine requires changing parts such as the presser foot. Although these parts are replaceable, the sewing machine needs to be adjusted after each replacement. Improper adjustment can easily lead to skipped stitches and other sewing problems. Therefore, these adjustments require a high level of skill from the sewing machine operator.

[0005] However, when sewing "double lines", the sewing machine cannot run empty. Therefore, if the sewing machine is used to sew "double lines", the process of sewing multiple garments cannot be continuous, which is not conducive to the advancement of automated sewing.

[0006] In automated sewing processes, to achieve the goal of continuously sewing multiple garments, "Hasselblad thread" is often used. However, some garment designs require a "double-line" sewing effect instead of "Hasselblad thread." This presents a challenge: sewing machines cannot run empty during the sewing process, making it impossible to continuously sew multiple garments. Furthermore, "double-line" sewing can lead to thread fraying. Therefore, a significant gap exists between customer requirements and the automation capabilities of sewing machines, creating a major obstacle to the use and promotion of automated equipment.

[0007] Furthermore, most of the "feet" finishing processes are currently completed manually or using robotic arms. While manual operation offers some flexibility, product quality largely depends on the operator's skill level and experience. Differences in operating techniques and proficiency among operators can easily lead to inconsistent product quality. Robotic arm operation, on the other hand, ensures a certain level of precision and stability, but it is more expensive, including equipment purchase and maintenance costs. Moreover, the maintenance and debugging of robotic arms require specialized technicians, making maintenance more difficult. These factors hinder the rapid promotion and application of automated equipment in the garment industry, limiting its further development. Utility Model Content

[0008] This utility model overcomes the shortcomings of existing technologies and provides an automatic hemming and material collection sewing machine for garment feet. During sewing, it can automatically switch between "Hasselblad thread" and "double thread" stitches to meet diverse needs and enrich sewing styles. During the garment sewing transition stage, the beginning and end switch to "Hasselblad thread" mode to avoid thread breakage and ensure production continuity. The hemming and laying component effectively folds the fabric edges, utilizing the cooperation of the side panel and laying table with a blower to quickly complete the folding. The feeding and shaping block positions the fabric, and its curved surface facilitates the transition. The blower holes maintain the folded state, ensuring stable transport. Multiple adjustment modules work together to adjust the size of the folded edges and the distance between the components and the sewing needle, adapting to different fabrics. Sensors detect the fabric position and initiate the sewing action, ensuring automation and accuracy. This automates the garment foot sewing process; operators only need to lay the fabric, and the machine automatically completes sewing and material collection, significantly reducing manual operation and improving production efficiency.

[0009] To solve the above-mentioned technical problems, the utility model is implemented through the following technical solution: An automatic folding and collecting mesh foot sewing device includes a sewing machine head assembly. An automatic thread hook assembly is provided at the front end of the sewing machine head assembly. The automatic thread hook assembly includes a thread hook driven by a power component. During the sewing process, the thread hook switches the sewing thread between "Hasselblad thread" and "double thread" by pulling out and putting in the mesh thread. A folding and laying component is also provided on one side of the sewing machine head assembly. The folding and laying component folds the edge of the fabric. A transfer mechanism is provided above the folding and laying component. The transfer mechanism feeds the folded fabric into the sewing machine sewing part of the sewing machine head assembly.

[0010] Furthermore, the sewing machine head assembly includes a drive cutter assembly, which is located on the side of the sewing machine away from the hem laying assembly. During the sewing process, the drive cutter assembly moves the fabric to cooperate with the sewing machine. After the sewing is completed, the cutter of the drive cutter assembly cuts off the tail end of the fabric along with the sewing thread, so that the sewn fabric can be separated from the sewing machine.

[0011] Furthermore, the hook is provided with a retractable hook and an elastic clip that fits against the hook, and a cutter is provided between the hook and the elastic clip; the power unit drives the hook to move, so that the hook can move away from or closer to the presser foot of the machine. The elastic clip assists the hook, so that when the mesh cable is pulled back, it is clamped between the elastic clip and the hook; the cutter is used to cut the mesh cable connected to the sewing position of the sewing machine; The automatic hook assembly is located at the front end of the sewing machine head. A loosening assembly is also provided at the wire clamp at the rear end of the sewing machine head. The loosening assembly includes a third power component, which drives the crossbar to move. The crossbar moves to loosen the net cable held by the wire clamp. After the net cable is loosened, the hook can hook the net cable and cut it.

[0012] Furthermore, the folding edge laying assembly includes a laying platform, and a folding edge support component is provided on one side of the laying platform. The folding edge support component includes a support, which is a 90-degree folded strip component, and the bottom plate of the 90-degree fold of the support is parallel to the laying platform. The side panel can move away from or close to the laying platform, and the side panel can also be raised or lowered relative to the laying platform. When the side panel is raised, the bottom plate of the side panel with a 90-degree fold is in contact with the lower end surface of the laying platform. When the side panel is lowered, a folding gap is formed between the bottom plate of the side panel with a 90-degree fold and the lower end surface of the laying platform. A first air blower is also installed at the 90-degree bend of the adjacent position. The length of the first air blower is parallel to the adjacent position. The air blower hole of the first air blower is located on the side of the pipe and faces the laying platform. A feeding shaping block is provided on the side of the side near the sewing machine head assembly. The lower side of the feeding shaping block is a shaping arc surface, and a shaping air hole is provided near the lower end of the shaping arc surface. A lower air pipe is provided above the feeding shaping block, and the opening of the lower air pipe faces downward of the feeding shaping block and is biased towards the sewing area of ​​the sewing machine.

[0013] Furthermore, a second air pipe is provided at one end of the adjacent position near the feeding and shaping block, and a sensor is provided above the second air pipe; The lower end of the adjacent position is connected to the adjacent position lifting cylinder; The adjacent lifting cylinder is connected to the laying adjacent adjustment module, and the laying platform is connected to the laying plate adjustment module; Both the placement side adjustment module and the placement board adjustment module are connected to the placement lateral adjustment module.

[0014] Furthermore, the power component includes a first power component and a second power component; When the sewing machine switches from "Hasselblad thread" to "double thread", the first power unit is used to push the hook closer to the net thread, and the second power unit causes the hook to swing away from the sewing machine needle after it hooks the net thread, thereby stretching the net thread to cut it. When the sewing machine switches from double-line stitching to Hasselblad stitching, the second power unit swings the hook toward the sewing machine needle, and the first power unit pushes the hook so that the end of the hook is close to the sewing machine needle. The first power component is connected to the hook seat, and the hook seat is connected to the front end of the sewing machine head of the sewing machine; The output end of the first power component is connected to the hook auxiliary seat; a rotating seat is rotatably connected to the middle of the hook auxiliary seat, and the second power component is connected to the end of the hook auxiliary seat away from the first power component; The output end of the second power component is connected to the rotary output connector, and the end of the rotary output connector is connected to the upper end of the rotary seat. The lower end of the rotating seat is connected to a swing seat, and the hook is connected to the swing seat; The output end of the third power component is connected to the push rod, and the crossbar is inserted perpendicularly into the push rod.

[0015] Furthermore, the drive blade assembly includes a cutting base, which is provided with a cutting groove and a lower roller; The sewing movement power unit is located directly above the lower roller. The sewing movement power unit includes a roller motor. The roller motor drives the first synchronous wheel to rotate. The first synchronous wheel drives the second synchronous wheel to rotate through a synchronous belt. The second synchronous wheel is coaxially connected to the drive roller. The drive roller is rotatably connected to one end of the swing rod, and the other end of the swing rod is rotatably connected to the swing rotation base shaft. A swing cylinder is also provided above the swing rod, and the middle part of the swing rod is rotatably connected to the output end of the swing cylinder. The cleaver is connected to the cleaver base, the cleaver base is slidably connected to the cleaver lifting slide rail, the cleaver base is connected to the output end of the cleaver lifting cylinder, and the cleaver lifting cylinder is connected to the cleaver cylinder seat.

[0016] Furthermore, the transfer mechanism includes a first transfer module and a second transfer module, the first transfer module being connected to a first pressing component and the second transfer module being connected to a clamping component; The first transfer module and the second transfer module are arranged vertically. A second clamping component is also provided below the first transfer module; The clamping component includes a clamping lifting cylinder, which is connected to a clamping first pressure plate. The lower end face of the clamping first pressure plate is connected to and clamps a second pressure plate via a clamping spring. The first clamping plate is provided with a side clamping fixing plate on its side, and side clamping cylinders are provided at both ends of the side clamping fixing plate. The side clamping cylinders are connected to the side clamping movable plate. The clamping first pressure plate is connected to the blowing base, and the blowing base is connected to the blowing air pipe.

[0017] Furthermore, a material receiving and laying platform is provided on the side of the sewing machine head assembly away from the hem laying assembly, and a material receiving and laying platform is provided directly opposite the material receiving lifting frame. The material receiving and laying platform includes an upper plate, and a push plate and a push clamp are slidably arranged below the upper plate. The material receiving lifting frame includes a lifting power module, which is connected to the lifting material receiving platform. The lifting material receiving platform has a clamping side plate on the side facing the material receiving and laying platform. After the pusher plate is pushed out, it can clamp the fabric hanging down from the side of the upper plate together with the clamping side plate. The pusher plate is then pushed out to push the fabric on the upper plate to the top of the lifting and receiving platform.

[0018] Furthermore, the push plate is connected to the push cylinder, and the push clamp is connected to the push clamp cylinder.

[0019] Compared with existing technologies, the advantages of this utility model are: 1. The mesh foot machine can automate the mesh foot manufacturing process. Operators only need to lay out the fabric, and the equipment can automatically complete a series of actions such as sewing and collecting the material, which greatly reduces manual operation and improves production efficiency.

[0020] 2. During sewing, it can automatically switch between "Hasselblad thread" and "double thread" to meet diverse sewing needs, providing more possibilities for making different styles of clothing and enriching the sewing styles of clothing.

[0021] During the transition phase of garment sewing, switching to the "Hasselblad line" mode at the beginning and end avoids the sewing machine breakage caused by the "double line" mode when the sewing machine is empty, thus ensuring production continuity and improving production efficiency.

[0022] 3. The edge-folding and laying component can effectively fold the edges of the fabric. Through the cooperation of the side and the laying platform, the fabric's own weight and the air blowing device can quickly complete the edge-folding effect. The feeding and shaping block can position the fabric fed into the sewing area. The shaping arc surface on its lower side is conducive to the fabric transition. The shaping air blowing hole can keep the fabric in a folded state and ensure that the fabric is stably transported to the sewing area. The side lifting cylinder, the laying side adjustment module, the laying plate adjustment module, and the laying lateral adjustment module work together to adjust the size of the fabric folded edge and the distance between the edge-folding and laying component and the sewing needle position in different directions, adapting to different fabrics and sewing needs. The sensor can detect whether the fabric has reached the sewing position. When the fabric is pushed to the lower end of the sensor, the program will start the sewing action to ensure the automation and accuracy of the sewing process.

[0023] 4. The sewing and gathering mechanism can be used not only for sewing the hem of the front and back panels of clothing, but also for sewing the hem of the sleeves. It is suitable for fabrics of different sizes. For fabrics of different sizes, the gathering and laying platform and the gathering and lifting frame are combined to provide multiple gathering methods and flexibly meet the needs of stacking and gathering fabrics. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the utility model. They do not constitute a limitation on the utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the mesh leg machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the "Hasselblad line" structure according to an embodiment of this utility model; Figure 3 This is an exploded schematic diagram of the mesh foot machine according to an embodiment of this utility model; Figure 4 This is a first exploded view of the folded edge laying component according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the folded-edge adjacent component structure according to an embodiment of the present invention; Figure 6 This is a second exploded view of the folded edge laying component according to an embodiment of the present invention; Figure 7 This is an exploded view of the material receiving and laying platform according to an embodiment of this utility model; Figure 8 This is a schematic diagram of the transfer structure according to an embodiment of the present invention; Figure 9 This is an exploded view of the clamping component according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the sewing machine head assembly structure according to an embodiment of the present utility model; Figure 11This is a schematic diagram of the drive blade assembly structure according to an embodiment of the present invention; Figure 12 This is a first exploded schematic diagram of the drive blade assembly according to an embodiment of the present invention; Figure 13 This is a second exploded schematic diagram of the drive blade assembly according to an embodiment of the present invention; Figure 14 This is a schematic diagram of the automatic hook assembly and the loosening assembly according to an embodiment of the present invention; Figure 15 This is an exploded view of the automatic hook assembly according to an embodiment of the present invention; Figure 16 This is a schematic diagram of the first structure of the loose wire assembly according to an embodiment of the present utility model; Figure 17 This is a schematic diagram of the automatic hook assembly structure according to an embodiment of the present utility model; Figure 18 This is a schematic diagram of the second structure of the loose wire assembly according to an embodiment of the present utility model.

[0025] In the diagram: A. Double thread; B. Mesh thread; 1. Sewing machine head assembly; 101. Automatic thread hook assembly; 1011. Thread hook seat; 1012. First power unit; 1013. Thread hook auxiliary seat; 1014. Rotating seat; 1015. Second power unit; 1016. Rotary output connection seat; 1017. Swing seat; 1018. Thread hook; 102. Thread loosening assembly; 1021. Third power unit; 1022. Push rod; 1023. Crossbar; 10231. Hobby hook; 103. Thread clamp; 104. Drive cutter assembly; 1041. Cutting base; 10411, Cutter slot; 1042, Lower roller; 1043, Cutter cylinder seat; 10431, Cutter lifting cylinder; 10432, Cutter base; 10433, Cutter lifting slide rail; 10434, Cutter; 1044, Sewing movement power unit; 10441, Roller motor; 10442, First synchronous pulley; 10443, Swing rod rotation base shaft; 10444, Swing rod; 10445, Drive roller; 10446, Second synchronous pulley; 10447, Swing cylinder; 2, Folding and laying assembly; 201, Laying lateral adjustment module; 2 02. Laying side adjustment module; 203. Laying plate adjustment module; 204. Side lifting cylinder; 205. Folding side component; 2051. Side; 2052. First air pipe; 2053. Second air pipe; 2054. Sensor; 206. Feeding shaping block; 2061. Shaping arc surface; 2062. Shaping air hole; 2063. Lower air pipe; 207. Laying platform; 3. Receiving laying platform; 301. Receiving laying base; 302. Push clamp cylinder; 303. Push clamp plate; 304. Push cylinder; 305. Push insert plate; 306. 1. Upper plate; 4. Receiving lifting frame; 401. Lifting power module; 402. Lifting receiving platform; 5. Transfer mechanism; 501. First transfer module; 502. Second transfer module; 503. First pressing component; 504. Second pressing component; 505. Clamping component; 5051. Clamping lifting cylinder; 5052. First clamping pressure plate; 5053. Clamping spring; 5054. Second clamping pressure plate; 5055. Side clamping fixing plate; 5056. Side clamping cylinder; 5057. Side clamping movable plate; 5058. Blowing base; 5059. Blowing air pipe. Detailed Implementation

[0026] The preferred embodiments of the utility model are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the utility model.

[0027] like Figures 1 to 18As shown, an automatic hemming and material collection sewing machine for garment foot production can automate the garment foot production process. The operator only needs to lay out the fabric, and the machine will automatically sew and collect the material. During sewing, the machine can automatically switch the sewing thread between "Hasselblad thread" and "double thread" to meet diverse sewing needs and provide more possibilities for the production of different styles of clothing.

[0028] This sewing machine includes a sewing machine head assembly 1, and an automatic thread hook assembly 101 is provided at the front end of the sewing machine head assembly 1. The automatic thread hook assembly 101 includes a thread hook 1018 driven by a power component. During the sewing process, the thread hook 1018 switches the sewing thread between "Hasselblad thread" and "double thread" by pulling out and putting in the mesh thread B. A folding and laying component 2 is also provided on one side of the sewing machine head assembly 1. The folding and laying component 2 folds the edge of the fabric. A transfer mechanism 5 is provided above the folding and laying component 2. The transfer mechanism 5 feeds the folded fabric into the sewing machine sewing area of ​​the sewing machine head assembly 1. A receiving and laying platform 3 is provided on the side of the sewing machine head assembly 1 away from the folding and laying component 2. A receiving and laying lifting frame 4 is provided directly opposite the receiving and laying platform 3. If the factory requires the use of "Hasselblad thread" for sewing, then there is no need to switch the stitch during the sewing process. In this case, the automatic thread hook component 101 and the loose thread component 102 do not need to participate in the production process.

[0029] If the factory's products require "double stitching", then at the start and end points of the sewing of the fabric, as well as at the transition between two pieces of fabric, the sewing thread is a short section of "Hasselblad thread". During the sewing process, the sewing thread appears as "double stitching". At this time, the automatic thread hook component 101 and the thread loosening component 102 need to participate in the production process.

[0030] The sewing machine head assembly 1 includes a drive cutter assembly 104, which is located on the side of the sewing machine away from the hem laying assembly 2. During the sewing process, the drive cutter assembly 104 drives the fabric to move in coordination with the sewing machine. The drive cutter assembly 104 includes a cutting base 1041, which is provided with a cutting groove 10411 and a lower roller 1042. Above the lower roller 1042 is a sewing movement power unit 1044, which includes a roller motor 10441. The roller motor 10441 drives the first synchronous pulley 10442 to rotate, and the first synchronous pulley 10442 drives the second synchronous pulley 10466 to rotate via a synchronous belt. The second synchronous pulley 10466 is coaxially connected to the drive roller 10445. The drive roller 10445 is rotatably connected to one end of the swing rod 10444, and the other end of the swing rod 10444 is rotatably connected to the swing rotation base shaft 10443. A swing cylinder 10447 is also provided above the swing rod 10444, and the middle part of the swing rod 10444 is rotatably connected to the output end of the swing cylinder 10447. The chopping blade 10434 is connected to the chopping blade base 10432, and the chopping blade base 10432 is slidably connected to the chopping blade lifting slide rail 10433. 10432 is connected to the output end of the cutting blade lifting cylinder 10431. The cutting blade lifting cylinder 10431 is connected to the cutting blade cylinder seat 1043. When it is necessary to move the fabric at the sewing point, the swing cylinder 10447 pushes the swing rod 10444 downward, so that the drive roller 10445 presses down on the top of the fabric. As the drive roller 10445 rotates, the drive roller 10445 and the lower roller 1042 together clamp and move the fabric, so that the fabric can be automatically sewn. After the sewing is completed, the cutting blade lifting cylinder 10431 pushes the cutting blade cylinder seat 1043 down. At the same time as the cutting blade 10434 descends, it cuts the empty stitches connecting the two pieces of fabric and the edge of the fabric. This not only separates the two pieces of fabric, which is beneficial for subsequent material collection, but also cuts off the frizzy parts of the fabric edge, making the fabric end flatter, which is beneficial for the sewing of the next process.

[0031] The transfer mechanism 5 includes a first transfer module 501 and a second transfer module 502. The first transfer module 501 is connected to a first pressing component 503, and the second transfer module 502 is connected to a clamping component 505. The first transfer module 501 and the second transfer module 502 are arranged vertically. A second pressing component 504 is also provided below the first transfer module 501. The second pressing component 504 is used to press down the fabric when the fabric is sent to the upper platen 306 and the clamping component 505 has not yet returned to its position, so that the fabric does not slip off the upper platen 306.

[0032] During sewing, the first pressing component 503 is initially positioned above the hem laying assembly 2. The operator simply places the fabric on the hem laying assembly 2, and the first pressing component 503 presses the fabric and moves it along the length of the hem laying assembly 2. Since the fabric of the garment is relatively wide, during the sewing process, the drive cutter assembly 104 is used to move the sewing position of the fabric to cooperate with the sewing machine, while the first pressing component 503 is used to move other parts of the fabric to prevent the fabric from being stretched during the sewing process because the sewing position moves while other parts remain stationary, thus affecting the quality of the sewing.

[0033] During the feeding process of the first pressing component 503, the hem laying component 2 folds the edge of the fabric while pushing the fabric to the sewing machine of the sewing machine head component 1 for sewing as the first pressing component 503 moves. After the first piece of fabric is sewn, the first pressing component 503 continues to send the fabric to the receiving and laying platform 3. The receiving and laying platform 3 and the receiving lifting frame 4 work together to stack and collect the fabric. Then the first pressing component 503 returns to the hem laying component 2 and begins to press and feed the second piece of fabric.

[0034] Therefore, during the sewing process, the operator only needs to lay the fabric, and the equipment can automatically feed, fold, sew, cut, and collect the fabric.

[0035] The automatic hook assembly 101 includes a hook 108 driven by a power unit. The hook 108 is provided with a hook that can extend and retract back and forth and an elastic clip that fits against the hook. A cutter is provided between the hook and the elastic clip. The power unit drives the hook 108 to move, so that the hook of the hook 108 can move away from or closer to the presser foot of the sewing machine. The mesh thread B is provided by a coil placed above the sewing machine head. After the mesh thread B is pulled out from the coil, it passes through the thread clamp 103 and is pulled to the thread end holder above the presser foot of the sewing machine. When the sewing machine is sewing, when the sewing machine needle goes down, it drives the mesh thread B to go down through the clothing and participate in the sewing. Since one end of the mesh thread B is fixed on the thread clamp 103 and the thread end holder, the position of the mesh thread B at this end is always determined. Therefore, when the hook is close to this position above the presser foot of the sewing machine, the hook can accurately hook the mesh thread B.

[0036] The side of the elastic clip is tightly attached to the side of the hook, so that when the mesh line B is pulled back by the hook, it is clamped between the elastic clip and the hook, making it difficult for the mesh line B to fall off after the hook catches it. The cutter is used to cut the mesh line B connected to the sewing position of the sewing machine.

[0037] The power components include a first power component 1012 and a second power component 1015; the first power component 1012 is a cylinder or an electric cylinder; the second power component 1015 is a cylinder or an electric cylinder.

[0038] When the sewing machine switches from "Hasselblad thread" to "double thread", the first power unit 1012 pushes the hook 108 closer to the mesh thread B. The hook 108 driven by the power unit moves to the output of the mesh thread B. The hook of the hook 108 extends and hooks the mesh thread B that has not been sewn. When the hook retracts, the mesh thread B is clamped between the elastic clips of the hook. After the hook hooks the mesh thread B, the second power unit 1015 causes the hook 108 to swing away from the sewing needle, thereby stretching the mesh thread B. At this time, the cutter extends and cuts the mesh thread, and the mesh thread B is cut off. At this time, the sewn stitch is "double thread".

[0039] When the sewing machine switches from double-line stitching to Hasselblad stitching, the second power unit 1015 swings the hook 108 toward the sewing needle, and the first power unit 1012 pushes the hook 108 so that the end of the hook is close to the sewing needle. As a result, when the sewing machine is sewing, the sewing needle is driven by the mesh thread B hooked by the hook to participate in the sewing, thus sewing out the Hasselblad stitch.

[0040] According to the process requirements, when the sewing of garments requires the use of "Hasselblad thread," the automatic thread hook assembly 101 does not need to operate. When the sewing of garments requires the use of "double thread," the beginning and end of the sewing of the garments need to switch to "Hasselblad thread" mode during the transition between the two garments. This results in a "double thread" sewing process. During the transition phase connecting the garments, the sewing machine needs to run empty, meaning only the thread is being woven without any fabric involved. If the sewing machine is still in a "double thread" mode at this time, the thread is prone to breakage. A broken thread requires stopping the machine and reconnecting the thread, thus affecting production efficiency. Using "Hasselblad thread" mode at the beginning and end of the sewing of garments ensures a stronger bond between the thread and the garment, preventing the thread from easily detaching from the garment.

[0041] The first power component 1012 is connected to the hook seat 1011, which is connected to the front end of the sewing machine head. The output end of the first power component 1012 is connected to the hook auxiliary seat 1013. A rotating seat 1014 is rotatably connected to the middle of the hook auxiliary seat 1013. The second power component 1015 is connected to the end of the hook auxiliary seat 1013 away from the first power component 1012. The output end of the second power component 1015 is connected to the rotating output connector 1016, and the end of the rotating output connector 1016 is connected to the upper end of the rotating seat 1014. A swing seat 1017 is connected to the lower end of the rotating seat 1014, and the hook 108 is connected to the swing seat 1017.

[0042] An automatic thread hook assembly 101 is located at the front end of the sewing machine head. A thread loosening assembly 102 is also provided at the thread clamp 103 at the rear end of the sewing machine head. The thread loosening assembly 102 includes a third power component 1021, which drives a crossbar 1023 to move. The crossbar 1023 moves to loosen the net cable B held by the thread clamp 103. After the net cable B is loosened, the thread hook 108 can hook onto the net cable B and cut it. The third power component 1021 is a cylinder or an electric cylinder. The output end of the third power component 1021 is connected to a push rod 1022. The crossbar 1023 is perpendicularly inserted into the push rod 1022. A loop hook 10231 is provided at the end of the crossbar 1023 away from the push rod 1022. The loop hook 10231 is used to hook onto the net cable B connected to the thread clamp 103, so that the net cable B will not fall off when the push rod 1022 pushes it.

[0043] Because the mesh thread B is taut during the sewing process, if the slack cord assembly 102 does not loosen it beforehand, the hook of the hook 108 will catch the mesh thread B. Furthermore, at the moment the cutter cuts the mesh thread B, due to the tension, the mesh thread B will spring back to the clamp 103, requiring the machine to be stopped and the thread pulled. Therefore, the slack cord assembly 102 ensures the stability of the mesh thread B during switching, guaranteeing a smooth switching process and avoiding the need for manual intervention due to switching errors.

[0044] The automatic thread hook assembly 101 can flexibly switch the sewing thread between "Hasselblad thread" and "double thread" during sewing, providing more possibilities for the production of different styles of clothing and enriching the sewing styles of clothing. During the transition stage of clothing sewing, by switching to "Hasselblad thread" mode at the beginning and end, the sewing machine avoids the thread breakage caused by "double thread" mode when the sewing machine is empty, ensuring production continuity and improving production efficiency.

[0045] The loosening component 102 loosens the network cable B in advance to prevent the network cable from rebounding due to tension, ensuring stability during network cable switching, ensuring smooth switching, reducing manual intervention, and improving the degree of production automation.

[0046] The edge-folding laying component 2 includes a laying platform 207. An edge-folding side component 205 is provided on one side of the laying platform 207. The edge-folding side component 205 includes a side component 2051, which is a strip-shaped component with a ninety-degree fold. The bottom plate of the ninety-degree fold of the side component 2051 is parallel to the laying platform 207. The adjacent panel 2051 can move away from or near the laying platform 207, and its lower end is connected to the adjacent lifting cylinder 204; therefore, the adjacent panel 2051 can also be raised and lowered relative to the laying platform 207. When the adjacent panel 2051 is raised, its 90-degree angled bottom plate is in contact with the lower end surface of the laying platform 207; when the adjacent panel 2051 is lowered, a folding gap is formed between the 90-degree angled bottom plate of the adjacent panel 2051 and the lower end surface of the laying platform 207. When laying the fabric, the edge of the fabric is first pushed to a stop. At the vertical edge of the 90-degree fold of the adjacent position 2051, the distance between the vertical edge of the 90-degree fold of the adjacent position 2051 and the side edge of the laying platform 207 near the adjacent position 2051 is the width of the edge of the fabric that needs to be folded. When the edge of the fabric is pushed between the vertical edges of the 90-degree fold of the adjacent position 2051, a folding gap is formed between the bottom plate of the 90-degree fold of the adjacent position 2051 and the lower end face of the laying platform 207. At this time, due to its own weight, the part of the fabric that exceeds the laying platform 207 hangs down to the side of the folding gap.

[0047] A first air-blowing pipe 2052 is also provided at the 90-degree bend of the adjacent position 2051. The length direction of the first air-blowing pipe 2052 is parallel to that of the adjacent position 2051. The air-blowing holes of the first air-blowing pipe 2052 are located on the side of the pipe, and the air-blowing holes face the laying platform 207. When the first air-blowing pipe 2052 starts blowing air, it blows the hanging fabric, causing the hanging fabric to fold along the side of the laying platform 207. The hanging fabric is then blown to the bottom of the laying platform 207. Then, the adjacent position 2051 rises under the push of the adjacent position lifting cylinder 204, supporting the hanging fabric. The hanging fabric is supported by the adjacent position 2051 and blown by the air from the first air-blowing pipe 2052, so that the upper end of the hanging fabric is in contact with the lower end of the laying platform 207, thereby completing the folding effect of the fabric edge.

[0048] A feeding shaping block 206 is provided on the side of the adjacent part 2051 near the sewing machine head assembly 1. The lower side of the feeding shaping block 206 is a shaping arc surface 2061. A shaping air hole 2062 is provided near the lower end of the shaping arc surface 2061. A lower air pipe 2063 is provided above the feeding shaping block 206. The opening of the lower air pipe 2063 faces downward of the feeding shaping block 206 and is biased towards the sewing area of ​​the sewing machine. A second air pipe 2053 is also provided at one end of the adjacent position 2051 near the feed shaping block 206, and a sensor 2054 is provided above the second air pipe 2053. The feed shaping block 206 is mainly used to position the fabric fed into the sewing area, so that the fabric can still maintain a folded state after being immediately placed near the adjacent position 2051. The shaping arc surface 2061 is conducive to the transition of the fabric. The shaping air hole 2062 makes the fabric maintain a folded state. The lower air pipe 2063 makes the folded fabric move along the sewing panel. The lower air pipe 2063 is equivalent to the fingers of a person who presses the fabric before it is fed into the sewing needle position in traditional sewing. Therefore, the cooperation of the shaping air hole 2062 and the lower air pipe 2063 can ensure that the fabric is stably fed and sewn.

[0049] Sensor 2054 is a light sensor. Sensor 2054 is used to sense that the fabric has reached the sewing position. Therefore, when the fabric is pushed to the lower end of sensor 2054, the program will start the sewing action, so that the sewing machine will start sewing the fabric.

[0050] The adjacent lifting cylinder 204 is connected to the laying adjacent adjustment module 202, and the laying platform 207 is connected to the laying plate adjustment module 203; both the laying adjacent adjustment module 202 and the laying plate adjustment module 203 are connected to the laying lateral adjustment module 201. The laying lateral adjustment module 201, the laying adjacent adjustment module 202, and the laying plate adjustment module 203 are all module components that drive the lead screw with a motor and move the moving block. The horizontal adjustment module 201 is used to adjust the distance between the feed shaping block 206 and the laying table 207 and the sewing needle position in the X direction. The laying plate adjustment module 203 is used to adjust the distance between the laying table 207 and the sewing needle position in the Y direction. The side position adjustment module 202 is used to adjust the distance between the edge of the laying table 207 and the vertical edge of the 90-degree fold angle of the side position 2051. In other words, the side position adjustment module 202 is used to adjust the size of the folded edge of the fabric.

[0051] The clamping component 505 includes a clamping lifting cylinder 5051, which is connected to a clamping first pressure plate 5052. The lower end face of the clamping first pressure plate 5052 is connected to a clamping second pressure plate 5054 via a clamping spring 5053. A side clamping fixing plate 5055 is provided on the side of the clamping first pressure plate 5052. Side clamping cylinders 5056 are provided at both ends of the side clamping fixing plate 5055. The side clamping cylinders 5056 are connected to a side clamping movable plate 5057. The clamping first pressure plate 5052 is connected to a blowing base 5058, which is connected to a blowing air pipe 5059.

[0052] The receiving and laying platform 3 includes an upper plate 306, and a push plate 305 and a push clamping plate 303 are slidably arranged below the upper plate 306; the receiving lifting frame 4 includes a lifting power module 401, the lifting power module 401 is connected to the lifting receiving platform 402, and the lifting receiving platform 402 is provided with a clamping side plate on the side facing the receiving and laying platform 3.

[0053] This sewing machine can be used not only for sewing the feet of the front and back panels of clothing, but also for sewing the feet of clothing sleeves. When the fabric is small, such as when sewing clothing sleeves, first move the clamping and feeding part 505 above the fabric on the upper plate 306. Then, the second pressure plate 5054 presses down on the middle of the fabric. Next, the blowing air pipe 5059 blows air to blow one end of the fabric to fit against the side clamping fixing plate 5055. At this time, the side clamping cylinder 5056 drives the side clamping movable plate 5057 to swing downward, so that the side clamping movable plate 5057 and the side clamping fixing plate 5055 together clamp the edge of the fabric. Then, the clamping and feeding part 505 moves above the lifting and receiving platform 402 and places the fabric at the top of the lifting and receiving platform 402. As the height of the fabric stack increases, the lifting power module 401 drives the lifting and receiving platform 402 to gradually descend and collect the fabric.

[0054] The push plate 305 is connected to the push cylinder 304, and the push clamping plate 303 is connected to the push clamping cylinder 302. When the equipment is used to sew large pieces of fabric, such as the front and back panels of clothing, the clamping component 505 is first moved above the fabric on the upper platen 306. Then, the second pressure plate 5054 presses down on one end of the fabric and moves the fabric towards the lifting and receiving platform 402, so that a portion of the fabric falls off the edge of the upper platen 306. The falling fabric is between the push clamping plate 303 and the clamping side plates of the lifting and receiving platform 402. At this time, the push... After the clamping plate 303 is pushed out, it clamps the fabric hanging down from the side of the upper plate 306 together with the clamping side plate. The push plate 305 is pushed out again to push the fabric on the upper plate 306 to the top of the lifting and receiving platform 402. As the height of the fabric stack increases, the lifting power module 401 drives the lifting and receiving platform 402 to gradually descend and collect the fabric. When the fabric stack is high, the side of the stacked fabric is clamped together with the side of the pushed clamping plate 303 to clamp the fabric hanging down from the side of the upper plate 306. Therefore, the newly collected fabric is always at the top of a stack of fabric.

[0055] This utility model of a mesh foot machine can automate the mesh foot manufacturing process. Operators only need to lay out the fabric, and the equipment can automatically complete a series of actions such as sewing and collecting the material, which greatly reduces manual operation and improves production efficiency.

[0056] During sewing, it can automatically switch between "Hasselblad thread" and "double thread" to meet diverse sewing needs, providing more possibilities for making different styles of clothing and enriching the sewing styles of clothing.

[0057] The edge-folding and laying component effectively folds the fabric edges. Through the cooperation of the side panel and the laying platform, the fabric's own weight and the air blowing device can quickly achieve the folding effect of the fabric edges. The feeding and shaping block can position the fabric fed into the sewing area. The shaping arc surface on its lower side facilitates the transition of the fabric. The shaping air blowing hole can keep the fabric in a folded state, ensuring that the fabric is stably transported to the sewing area. The side panel lifting cylinder, the laying side panel adjustment module, the laying plate adjustment module, and the laying lateral adjustment module work together to adjust the size of the fabric folded edge and the distance between the edge-folding and laying component and the sewing needle position in different directions, adapting to different fabrics and sewing needs. The sensor can detect whether the fabric has reached the sewing position. When the fabric is pushed to the lower end of the sensor, the program will start the sewing action to ensure the automation and accuracy of the sewing process.

[0058] The sewing and gathering mechanism can be used not only for sewing the hem of the front and back panels of a garment, but also for sewing the hem of the sleeves. It is suitable for fabrics of different sizes. For fabrics of different sizes, the gathering and laying platform and the gathering and lifting frame are combined to provide multiple gathering methods, which can flexibly meet the needs of stacking and gathering fabrics.

[0059] Finally, it should be noted that the above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. An automatic folding and gathering mesh leg sewing machine, characterized in that, The machine includes a sewing machine head assembly (1), and an automatic thread hook assembly (101) is provided at the front end of the sewing machine head assembly (1). The automatic thread hook assembly (101) includes a thread hook (1018) driven by a power unit. During the sewing process, the thread hook (1018) switches the sewing thread between "Hasselblad thread" and "double thread" by pulling out and putting in the mesh thread (B). The sewing machine head assembly (1) is also provided with a folding edge laying assembly (2) on one side. The folding edge laying assembly (2) folds the edge of the fabric. A transfer mechanism (5) is provided above the folding edge laying assembly (2). The transfer mechanism (5) sends the folded fabric into the sewing machine sewing part of the sewing machine head assembly (1).

2. The automatic folding and collecting mesh leg sewing equipment according to claim 1, characterized in that, The sewing machine head assembly (1) includes a drive cutter assembly (104). The drive cutter assembly (104) is located on the side of the sewing machine away from the hem laying assembly (2). During the sewing process, the drive cutter assembly (104) moves the fabric to cooperate with the sewing machine. After the sewing is completed, the cutter (10434) of the drive cutter assembly (104) cuts off the tail end of the fabric along with the sewing thread, so that the sewn fabric can be separated from the sewing machine.

3. The automatic folding and collecting mesh leg sewing equipment according to claim 1, characterized in that, The hook (1018) is provided with a hook that can extend and retract back and forth and an elastic clip that fits with the hook. A cutter is provided between the hook and the elastic clip. The power unit drives the hook (1018) to move, so that the hook of the hook (1018) can move away from or closer to the presser foot of the machine. The elastic clip assists the hook so that when the network cable (B) is pulled back, it is clamped between the elastic clip and the hook; The cutter is used to cut the mesh thread (B) connected to the sewing position on the sewing machine; The automatic hook assembly (101) is located at the front end of the sewing machine head. A loosening assembly (102) is also provided at the wire clamp (103) at the rear end of the sewing machine head. The loosening assembly (102) includes a third power component (1021). The third power component (1021) drives the crossbar (1023) to move. The crossbar (1023) moves to loosen the net cable (B) clamped by the wire clamp (103). After the net cable (B) is loosened, the hook (1018) can hook the net cable (B) and cut it.

4. The automatic folding and collecting mesh leg sewing equipment according to claim 1, characterized in that, The edge-folding laying assembly (2) includes a laying platform (207), and an edge-folding side part (205) is provided on one side of the laying platform (207). The edge-folding side part (205) includes a side part (2051), which is a strip-shaped part with a ninety-degree fold. The bottom plate of the ninety-degree fold of the side part (2051) is parallel to the laying platform (207). The adjacent position (2051) can be moved away from or close to the laying platform (207). The adjacent position (2051) can also be raised and lowered relative to the laying platform (207). When the adjacent position (2051) is raised, the bottom plate of the 90-degree fold angle of the adjacent position (2051) is in contact with the lower end surface of the laying platform (207). When the adjacent position (2051) is lowered, a folding gap is formed between the bottom plate of the 90-degree fold angle of the adjacent position (2051) and the lower end surface of the laying platform (207). A first air pipe (2052) is also provided at the 90-degree bend of the adjacent position (2051). The length direction of the first air pipe (2052) is parallel to that of the adjacent position (2051). The air holes of the first air pipe (2052) are provided on the side of the pipe, and the air holes face the laying platform (207). The side of the adjacent part (2051) near the sewing machine head assembly (1) is provided with a feeding shaping block (206). The lower side of the feeding shaping block (206) is a shaping arc surface (2061). A shaping air hole (2062) is provided near the lower end of the shaping arc surface (2061). A lower air pipe (2063) is provided above the feeding shaping block (206). The opening of the lower air pipe (2063) faces the lower part of the feeding shaping block (206) and is biased towards the sewing machine sewing area.

5. The automatic folding and collecting mesh leg sewing equipment according to claim 4, characterized in that, The adjacent position (2051) is also provided with a second air pipe (2053) at one end near the feeding shaping block (206), and a sensor (2054) is provided above the second air pipe (2053). The lower end of the adjacent position (2051) is connected to the adjacent position lifting cylinder (204). The adjacent lifting cylinder (204) is connected to the laying adjacent adjustment module (202), and the laying platform (207) is connected to the laying plate adjustment module (203); Both the laying side adjustment module (202) and the laying plate adjustment module (203) are connected to the laying lateral adjustment module (201).

6. The automatic folding and collecting mesh leg sewing equipment according to claim 3, characterized in that, The power components include a first power component (1012) and a second power component (1015); When the sewing machine switches from "Hasselblad thread" to "double thread", the first power unit (1012) pushes the hook (1018) close to the net thread (B), and the second power unit (1015) causes the hook (1018) to swing away from the sewing machine needle after the hook catches the net thread (B), thereby stretching the net thread (B) to cut the net thread; When the sewing machine switches from "double thread" to "Hasselblad thread", the second power unit (1015) swings the thread hook (1018) toward the sewing machine needle, and the first power unit (1012) pushes the thread hook (1018) so that the end of the hook is close to the sewing machine needle. The first power unit (1012) is connected to the hook seat (1011), and the hook seat (1011) is connected to the front end of the sewing machine head of the sewing machine; The output end of the first power unit (1012) is connected to the hook auxiliary seat (1013); the middle part of the hook auxiliary seat (1013) is rotatably connected to the rotating seat (1014), and the second power unit (1015) is connected to the end of the hook auxiliary seat (1013) away from the first power unit (1012); The output end of the second power component (1015) is connected to the rotary output connector (1016), and the end of the rotary output connector (1016) is connected to the upper end of the rotary seat (1014). The lower end of the rotating seat (1014) is connected to the swing seat (1017), and the hook (1018) is connected to the swing seat (1017); The output end of the third power unit (1021) is connected to the push rod (1022), and the crossbar (1023) is vertically inserted into the push rod (1022).

7. The automatic folding and gathering mesh leg sewing equipment according to claim 2, characterized in that, The drive blade assembly (104) includes a cutting base (1041), which is provided with a cutting groove (10411) and a lower roller (1042). The sewing moving power unit (1044) is located directly above the lower roller (1042). The sewing moving power unit (1044) includes a roller motor (10441), which drives the first synchronous pulley (10442) to rotate. The first synchronous pulley (10442) drives the second synchronous pulley (10466) to rotate via a synchronous belt. The second synchronous pulley (10466) is coaxially connected to the drive roller (10445). The drive roller (10445) is rotatably connected to one end of the swing rod (10444), and the other end of the swing rod (10444) is rotatably connected to the swing rotation base shaft (10443); A swing cylinder (10447) is also provided above the swing rod (10444), and the middle part of the swing rod (10444) is rotatably connected to the output end of the swing cylinder (10447); The cleaver (10434) is connected to the cleaver base (10432), the cleaver base (10432) is slidably connected to the cleaver lifting slide rail (10433), the cleaver base (10432) is connected to the output end of the cleaver lifting cylinder (10431), and the cleaver lifting cylinder (10431) is connected to the cleaver cylinder seat (1043).

8. The automatic folding and collecting mesh leg sewing equipment according to claim 1, characterized in that, The transfer mechanism (5) includes a first transfer module (501) and a second transfer module (502). The first transfer module (501) is connected to a first pressing component (503), and the second transfer module (502) is connected to a clamping component (505). The first transfer module (501) and the second transfer module (502) are arranged vertically; A second pressing component (504) is also provided below the first transfer module (501); The clamping component (505) includes a clamping lifting cylinder (5051), which is connected to a clamping first pressure plate (5052). The lower end face of the clamping first pressure plate (5052) is connected to a clamping second pressure plate (5054) via a clamping spring (5053). The first clamping plate (5052) is provided with a side clamping fixing plate (5055) on its side, and a side clamping cylinder (5056) is provided at both ends of the side clamping fixing plate (5055). The side clamping cylinder (5056) is connected to the side clamping movable plate (5057). The clamping first pressure plate (5052) is connected to the blowing base (5058), and the blowing base (5058) is connected to the blowing air pipe (5059).

9. An automatic folding and collecting mesh leg sewing device according to any one of claims 1 to 8, characterized in that, The sewing machine head assembly (1) is provided with a material receiving and laying platform (3) on the side away from the edge laying assembly (2), and a material receiving and laying platform (3) is provided with a material receiving lifting frame (4) directly opposite it. The material receiving and laying platform (3) includes an upper plate (306), and a push plate (305) and a push clamp (303) are slidably arranged below the upper plate (306). The material receiving lifting frame (4) includes a lifting power module (401), which is connected to the lifting receiving platform (402). The lifting receiving platform (402) has a clamping side plate on the side facing the material receiving and laying platform (3). After the push clamp (303) is pushed out, it can clamp the fabric hanging down from the side of the upper plate (306) together with the clamping side plate. Then the push insert (305) is pushed out to push the fabric on the upper plate (306) to the top of the lifting and receiving platform (402).

10. The automatic folding and collecting mesh leg sewing equipment according to claim 9, characterized in that, The push plate (305) is connected to the push cylinder (304), and the push clamp plate (303) is connected to the push clamp cylinder (302).

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