A sewing machine for sewing muscle cloth

Abstract

The utility model provides a clear muscle cloth sewing integrated machine relates to sewing equipment technical field, including setting up in the clothes car subassembly on the open conveying sewing assembly and the rubber band open sleeve joint assembly, the rubber band open sleeve joint assembly includes the open fixed link, and the open fixed link is connected with the open movable link middle part adapter position rotation, the utility model discloses an advantage is, set up the open conveying sewing assembly and the rubber band open sleeve joint assembly, when using the equipment, the hand only needs to put the ring -like rubber band in the rubber band open sleeve joint assembly, need not to go in -depth to the sewing position of equipment and operate, has reduced the risk of injury of operating personnel in the complex mechanism of equipment, has improved the security of operation greatly, and the rubber band open and sleeve into operation can be avoided the product quality not uniform caused by the different operation habits of different operators, make the product quality more stable, reduce the rework frequency caused by quality problem.

Description

Technical Field

[0001] The utility model relates to the field of sewing equipment technology, and in particular to an integrated sewing machine for exposed ribbed fabric. Background Technology

[0002] In today's rapidly developing technological landscape, automation is increasingly widely applied across various industries, including garment manufacturing. Many garment-making processes now rely on automated sewing equipment, significantly improving production efficiency. However, the garment industry possesses unique complexities; the soft and easily deformed nature of fabrics presents a significant challenge to automated sewing mechanisms. Processes such as sewing elastic bands into trousers or hems pose a particularly severe test for automated garment manufacturing equipment.

[0003] Currently, most elastic band sewing machines on the market still rely on manual operation to place the elastic bands onto the sewing positions. This is mainly because automation technology in this step is not yet mature enough. The internal mechanisms of these automated machines are complex, leaving extremely limited space for manual operation. On the one hand, the narrow operating space makes manual operation exceptionally difficult, requiring operators to spend more time and effort to place the elastic bands, which undoubtedly reduces production efficiency. On the other hand, operators' hands are easily injured or scratched by various mechanisms on the machine when reaching into the narrow space, posing serious safety hazards. Moreover, due to differences in operating habits and skill levels among different operators, manual placement of elastic bands can lead to deviations in the placement position, thus affecting the quality stability of the products and resulting in inconsistent product quality.

[0004] The technical content disclosed in Chinese patent document (publication number: CN207362453U, patent name: An automatic elastic band attaching machine for trousers) is as follows: It includes a trouser fabric holding mechanism for stretching and extending trouser fabric, an elastic band roller that moves synchronously with the trouser fabric holding mechanism, a sewing machine for sewing the elastic band onto the trouser fabric, a correction mechanism for adjusting the movement trajectory of the trouser fabric and the elastic band, sensors, a take-up mechanism, a worktable, electrical components, and control components. The trouser fabric holding mechanism, elastic band roller, sewing machine, correction mechanism, and sensors are all mounted on the worktable surface. A thread feeder is also provided on the worktable for holding thread spools, which supply sewing thread to the sewing machine. The worktable contains control components and electrical components, which are connected to electrical equipment on the worktable via wiring.

[0005] As can be seen from the aforementioned patent documents, while this automatic elastic band sewing machine for trousers achieves the function of automatically sewing elastic bands to a certain extent, it has significant shortcomings in the elastic band placement process. It lacks a mechanism for automatically placing the elastic bands, still requiring manual intervention. This leads to problems such as improper and inaccurate elastic band placement, making it difficult to effectively guarantee product quality. Furthermore, the safety hazards associated with manual operation remain unresolved, with operators still facing the risk of injury when using the equipment. Therefore, to further improve the automation level and product quality of the garment industry and reduce safety hazards, it is necessary to improve and innovate elastic band sewing equipment, developing a device capable of automatically placing elastic bands. Utility Model Content

[0006] The utility model overcomes the shortcomings of the prior art and provides an integrated sewing machine for exposed rebar fabric. It is equipped with a stretching conveying sewing component and an elastic stretching sleeve component. When using the equipment, the operator only needs to put the circular elastic band on the elastic stretching sleeve component E, without having to go deep into the sewing position of the equipment to operate. This reduces the risk of injury to the operator in the complex mechanism of the equipment and greatly improves the safety of operation.

[0007] To solve the above-mentioned technical problems, the utility model is implemented through the following technical solution:

[0008] A sewing machine for exposed ribbed fabric includes a stretching conveying sewing assembly and an elastic stretching sleeve assembly mounted on a sewing machine assembly.

[0009] The elastic band expansion sleeve assembly includes an expansion fixed rod, which is rotatably connected to the middle transition position of the expansion movable rod, and one end of the expansion movable rod is connected to a power component;

[0010] The output end of the power component pushes the movable rod to rotate around the fixed rod, thereby achieving a state in which one end of the movable rod and the end of the fixed rod are either separated or overlapped.

[0011] The opening and fixing rod is connected to the pull-in slider, which is slidably connected to the feeding base. The pull-in slider is driven to move by the feeding and pulling-in power component.

[0012] The opening movable rod and the opening fixed rod are responsible for opening the circular rubber band. When the slider is pulled in and moved, the opened circular rubber band can be put onto the opening conveyor sewing assembly.

[0013] The spreading and conveying sewing assembly includes auxiliary pushing support components located on both sides of the fabric sewing support platform and a fabric feeding spreading device.

[0014] Furthermore, a blower unit for the sewing position is installed above the fabric sewing support table;

[0015] The fabric sewing support platform includes an elastic base, on which a lifting slide rod and a lifting slide rail slider assembly are provided. The lifting slide rod is sleeved with a lifting spring, and the lifting spring, the lifting slide rail slider assembly and the lifting spring are all connected to the fabric contact platform.

[0016] The fabric contact platform is provided with a material feeding arc groove;

[0017] A deviation correction component is provided above the fabric contact table, and the deviation correction component is connected to the air blowing and pressing fabric component.

[0018] The correction assembly includes a rotating base, which is externally connected to a first motor, thereby enabling the rotating base to rotate on its own.

[0019] The rotary seat is internally connected to a central drive structure, which includes a central rotating shaft. A second motor is externally connected to the central rotating shaft. The rotary seat is fixedly connected to a mounting center seat, which is connected to a correction transmission group. The correction transmission group includes several transmission mechanisms, which are arranged in a ring shape, with a transmission gap between each pair of transmission mechanisms.

[0020] The misaligned distribution of the correction transmission groups at both ends of the mounting base results in the transmission mechanism and transmission gap on the same axis being arranged alternately.

[0021] The transmission mechanism includes a correction belt, and the rotation of the central shaft ultimately drives the correction belt to rotate. A portion of the correction belt is exposed outside the mounting base. When the correction belt rotates, it applies a lateral pushing force to the fabric. The rotation plane of the correction belt is orthogonal to the rotation axis of the central drive structure.

[0022] The mounting base is provided with a accommodating arc groove in the middle, which is used to accommodate the fabric that is wrinkled when it is moved.

[0023] Furthermore, the spreading and fixing rod is connected to the pull-in slider, which is slidably connected to the feeding base. The pull-in slider is driven to move by the feeding and pulling-in power component.

[0024] The expansion fixing rod is connected to the power mounting base, the power mounting base is rotatably connected to the power rotating base, and the power rotating base is connected to the power component;

[0025] The power unit is connected to the spreading rod via an adapter.

[0026] Furthermore, the two ends of the spreading movable rod are respectively provided with an end power connection position and a second recess, and a first recess is provided between the middle transition position and the second recess;

[0027] The first and second recesses are recessed in opposite directions.

[0028] The first recess is used to provide depth limiting when the elastic band is inserted;

[0029] The second recess is used to limit the displacement of the elastic band during the spreading operation by means of a reverse recess structure, preventing it from slipping away from the first recess.

[0030] The opening and fixing rod is provided with an opening groove that extends from the middle of the opening and fixing rod to the end, so that the end of the opening and fixing rod is divided into two structures. When the opening and fixing rod rotates, its movement trajectory matches the opening groove, so that the opening and fixing rod passes through the opening groove.

[0031] Furthermore, a spring pressure seat is also provided on the expansion and fixing rod, the spring pressure seat is connected to a spring plate, and the end of the spring plate abuts against the expansion and fixing rod;

[0032] The opening of the spring sheet is aligned with the opening direction of the slot of the support rod, and the spring sheet is used to clamp the rubber band.

[0033] Furthermore, the central rotating shaft is connected to the central worm gear;

[0034] The transmission mechanism includes an internal gear, which meshes with a central worm gear, and the side of the internal gear away from the central worm gear meshes with an external gear.

[0035] The correction belt is sleeved on the external gear;

[0036] The correction belt is a round belt, and the external gear is provided with at least one embedded arc groove, and the correction belt is fitted into the embedded arc groove.

[0037] The transmission mechanism includes an inner rotating shaft, which is connected to an inner gear via a fourth bearing; and an outer gear is connected to an outer rotating shaft via a third bearing.

[0038] Both sides of the mounting base are provided with several inner shaft grooves, and the first and last ends of the several inner shaft grooves are connected to form a polygonal groove, and the inner rotating shaft is fitted into the inner shaft groove.

[0039] An internal gear groove is vertically provided at the center of the inner shaft groove, and the internal gear groove is used to accommodate the internal gear.

[0040] The mounting base is provided with an outer shaft groove near the accommodating arc groove. The outer rotating shaft is fitted into the outer shaft groove. A third belt groove is provided perpendicular to the outer shaft groove. A part of the correction belt is fitted into the third belt groove.

[0041] Furthermore, the corrective belt is made of rubber and is positioned directly above the center of the material feeding arc groove when it moves the fabric.

[0042] Furthermore, the air-blowing and pressing assembly includes an air-blowing and pressing base, which is connected to an air-blowing and lifting cylinder and a pressing mechanism. The air-blowing and lifting cylinder is connected to a first air-blowing pipe, which is used to flatten the rolled-up parts of the fabric edges when the correction assembly corrects the fabric.

[0043] The pressing mechanism includes a pressing cylinder and a sensor lifting slider. The sensor lifting slider is connected to a bone position detection sensor, and the bone position detection sensor is connected to a bone position contact roller.

[0044] The air-blowing and pressing assembly is also provided with a first support cylinder and a second support cylinder. The first support cylinder is connected to a first support plate, and the second support cylinder is connected to a second support plate.

[0045] Furthermore, the auxiliary pushing support component is used to cooperate with the fabric feeding and spreading device to sleeve the looped elastic band and the looped fabric;

[0046] The fabric feeding and spreading device includes a fabric spreading lateral movement force component, which is connected to and drives the first base to move. An elastic band sleeve roller is connected to the first base.

[0047] The elastic band connecting roller is provided with a support roller and a side pressure roller on both sides; the support roller is located on the side of the elastic band connecting roller closer to the sewing machine head and can be moved to a position coaxial with the elastic band connecting roller; the side pressure roller is located on the side of the elastic band connecting roller away from the sewing machine head, and the distance between it and the elastic band connecting roller is adjustable.

[0048] The elastic band sleeve roller is used to sleeve one end of the ring-shaped elastic band, and the fabric support roller is used to sleeve one end of the ring-shaped fabric; the side pressure roller is used to cooperate with the fabric support roller to clamp and drive the fabric to rotate.

[0049] The outer diameters of the elastic sleeve roller, the fabric support roller, and the side pressure roller are the same, and their axes are on the same horizontal line.

[0050] The first seat is connected to a fabric sleeve component, the fabric sleeve component includes a second track, the second track is slidably connected to a side shift seat, the first seat is connected to a fabric spreading cylinder, and the output end of the fabric spreading cylinder is connected to the side shift seat.

[0051] The side shift seat is connected to the inverted corner seat, and the fabric support roller is connected to the inverted corner seat; the inverted corner seat is located between the fabric support roller and the sewing machine head.

[0052] The fabric feeding and spreading device includes a first slide rail and a first cylinder for connecting a first base and a second base; the first cylinder is installed on the first base and the output end of the first cylinder is connected to the second base.

[0053] The side pressure roller is connected to the second base body, and the second base body is also equipped with a side pressure motor. The side pressure motor is connected to the side pressure roller through a side pressure synchronous pulley set; a protective cover is provided on the side pressure synchronous pulley set.

[0054] Furthermore, the auxiliary pushing support component includes an elastic band drive sleeve and a fabric drive sleeve arranged coaxially, and the elastic band drive sleeve and the fabric drive sleeve are each controlled by an independent motor.

[0055] Compared with existing technologies, the advantages of this utility model are:

[0056] The device is equipped with a tensioning conveyor seam assembly and an elastic band tensioning sleeve assembly. When using the device, the operator only needs to put the circular elastic band on the elastic band tensioning sleeve assembly, without having to go deep into the seam of the device to operate. This reduces the risk of injury to the operator in the complex mechanism of the device and greatly improves the safety of operation.

[0057] Using equipment to stretch and insert the rubber bands avoids inconsistencies in product quality caused by different operators' operating habits, resulting in more stable product quality and reducing the number of reworks due to quality issues. Attached Figure Description

[0058] 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:

[0059] Figure 1 This is a schematic diagram of the overall structure of the sewing equipment according to an embodiment of the present utility model;

[0060] Figure 2 This is an exploded view of the sewing equipment according to an embodiment of the present invention;

[0061] Figure 3 This is a schematic diagram of the structure of the air-blowing and pressing cloth assembly and the correction assembly according to an embodiment of the present utility model;

[0062] Figure 4 This is an exploded view of the air-blowing and fabric-pressing assembly and the deviation-correcting assembly according to an embodiment of the present invention;

[0063] Figure 5 This is an exploded schematic diagram of the blower-pressed cloth assembly according to an embodiment of the present invention;

[0064] Figure 6 This is an exploded view of the fabric sewing support platform according to an embodiment of the present invention;

[0065] Figure 7 This is a schematic diagram of the correction component structure according to an embodiment of the present utility model;

[0066] Figure 8This is a cross-sectional view of the correction component according to an embodiment of the present utility model;

[0067] Figure 9 This is a schematic diagram of the seat and the correction transmission assembly structure during installation in an embodiment of this utility model;

[0068] Figure 10 This is an exploded view of the correction component according to an embodiment of the present invention;

[0069] Figure 11 This is an exploded view of the correction transmission assembly according to an embodiment of the present invention;

[0070] Figure 12 This is a schematic diagram of the fabric feeding and spreading device according to an embodiment of the present utility model;

[0071] Figure 13 This is an exploded schematic diagram of the fabric feeding and spreading device according to an embodiment of the present invention;

[0072] Figure 14 This is an exploded schematic diagram of the side-pressure power component according to an embodiment of the present invention;

[0073] Figure 15 This is an exploded view of the material sleeve component according to an embodiment of the present utility model;

[0074] Figure 16 This is a schematic diagram of the camera opening sleeve assembly structure according to an embodiment of the present utility model;

[0075] Figure 17 This is a schematic diagram of the elastic band spreading and connecting mechanism according to an embodiment of the present utility model;

[0076] Figure 18 This is a first exploded schematic diagram of the elastic band spreading and connecting mechanism according to an embodiment of the present utility model;

[0077] Figure 19 This is a second exploded view of the elastic band spreading and connecting mechanism according to an embodiment of the present invention.

[0078] In the diagram: A. Sewing machine assembly; A1. Sewing head; A2. Seam blower assembly; A3. Fabric sewing support platform; A31. Support platform elastic base; A32. Lifting slide bar; A33. Lifting spring; A34. Lifting plate; A35. Lifting slide rail slider assembly; A36. Fabric contact platform; A361. Material feeding arc groove; B. Spreading and conveying sewing assembly; B2. Auxiliary pushing support component; B201. Elastic band drive sleeve; B202. Fabric drive sleeve; B3. Fabric feeding and spreading device; B301. Fabric spreading lateral movement force component; B3011. Lateral movement force base; B3012. Lateral movement drive motor; B3013. Lateral movement slide rail; B3014. Lateral movement slider; B3015. Synchronous pulley; B3016. Synchronous... B3017, Transverse drive connecting block; B3018, Cover plate; B302, First seat; B3021, Elastic band sleeve roller; B303, First section moving mechanism; B3031, First slide rail; B3032, Second seat; B3033, First cylinder; B304, Side pressure power component; B3041, Side pressure motor; B3042, Side pressure synchronous pulley set; B3043, Side pressure roller; B3044, Protective cover; B305, Fabric sleeve component; B3051, Second slide rail; B3052, Side shift seat; B3053, Fabric spreading cylinder; B3054, Reverse turn seat; B3055, Fabric spreading roller; C, Air blowing and pressing assembly; C1, Air blowing and pressing base; C2, Air blowing and lifting cylinder; C 3. First air blowing pipe; C4. Fabric pressing mechanism; C41. Fabric pressing cylinder; C42. Bone position detection sensor; C43. Sensor lifting slider; C44. Bone position contact roller; C5. First support cylinder; C51. First support plate; C6. Second support cylinder; C61. Second support plate; D. Correction assembly; D1. Central drive structure; D101. Central shaft; D102. First bearing; D103. Second bearing; D104. Central worm gear; D105. Coupling; D2. Correction transmission group; D201. Transmission mechanism; D2011. Outer shaft; D2012. Third bearing; D2013. External gear; D20131. Embedded arc groove; D2014. Correction belt; D2015. Inner shaft; D2016, Fourth Bearing; D2017, Internal Gear; D3, End Cover; D301, First Groove; D4, Mounting Seat; D401, Receptive Arc Groove; D402, Internal Shaft Groove; D403, Internal Gear Groove; D404, External Shaft Groove; D405, Third Groove; D5, Rotary Seat; D501, Second Groove; D6, First Motor; D7, Second Motor; E, Rubber Band Spreading Sleeve Assembly; E1, Feeding Base; E2, Feeding Pull-in Power Component; E201, Pull-in Slider; E3, Spreading Fixing Rod; E301, Opening Groove; E4, Power Mounting Seat; E5, Power Rotating Seat; E6, Power Component; E7, Adapter; E8, Spreading Movable Rod; E801, Middle Adapter Position; E802, End Power Connection Position;E803, First recess; E804, Second recess; E9, Spring pressure seat; E901, Spring plate; F, Auxiliary blower assembly. Detailed Implementation

[0079] 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.

[0080] like Figures 1 to 19 As shown, a sewing machine for visible elastic fabric is used to sew circular elastic bands together with circular fabric, especially for sewing visible elastic underwear, where the elastic band is not wrapped in the fabric but is simply sewn together with the fabric. It includes a stretching conveying sewing component B and an elastic stretching sleeve component E set on the sewing machine component A.

[0081] The elastic band opening and connecting assembly E is used to clamp the circular elastic band and open it before it is inserted into the opening conveyor sewing assembly B. The opening conveyor sewing assembly B is used to move and fix the opened circular elastic band and circular fabric. The sewing machine assembly A is used to sew the circular elastic band and circular fabric together. Therefore, when using this sewing equipment, the operator only needs to put the circular elastic band on the elastic band opening and connecting assembly E, and the elastic band opening and connecting assembly E will automatically open the elastic band and put it into the opening conveyor sewing assembly B. Therefore, it is not necessary for the operator to go deep into the sewing position of the equipment to operate. This not only improves the safety of operation, but also avoids the inconsistency of product quality caused by different operators' different operating habits. Therefore, it can make the product quality more stable, reduce the number of reworks, and improve work efficiency.

[0082] The elastic band opening and connecting assembly E includes two sets of elastic band opening and connecting mechanisms, which are arranged in a mirror image. This design ensures efficient and symmetrical elastic band feeding during operation, greatly improving overall work efficiency and stability.

[0083] The elastic band opening and connecting mechanism includes an opening fixed rod E3, which is rotatably connected to the middle transition position E801 of the opening movable rod E8. One end of the opening movable rod E8 is connected to a power component E6; in this embodiment, the power component E6 is a cylinder or an electric cylinder. The output end of the power component E6 pushes the opening movable rod E8 to rotate around the opening fixed rod E3, thereby achieving a state where one end of the opening movable rod E8 and the end of the opening fixed rod E3 are either separated or overlapped. When one end of the opening movable rod E8 and the end of the opening fixed rod E3 are overlapped, the operator can put the elastic band ring onto the two sets of elastic band opening and connecting mechanisms. Then, the ends of the opening movable rod E8 and the opening fixed rod E3 are separated to automatically open the elastic band ring. After opening, the elastic band ring can be put onto the equipment for sewing clothing.

[0084] The expanding and fixing rod E3 is equipped with an opening groove E301, which extends from the middle to the end of the expanding and fixing rod E3, dividing the end of the expanding and fixing rod E3 into two structures. When the expanding and movable rod E8 rotates, its movement trajectory matches the opening groove E301, allowing the expanding and movable rod E8 to pass through the opening groove E301. When one end of the expanding and movable rod E8 coincides with the end of the expanding and fixing rod E3, the end of the expanding and movable rod E8 will nest into the opening groove E301. This design is ingenious; the outer diameter of the coincident rod end is consistent with the outer diameter of the expanding and fixing rod E3, minimizing the overall diameter of the elastic band fitting rod. In this way, when fitting the elastic band, the operator does not need to specifically expand the elastic band; they can easily complete the fitting action, making the operation simpler and less strenuous. This not only reduces the labor intensity of the operator but also significantly improves work efficiency.

[0085] Compared to the traditional arrangement where the two are placed side by side and overlapped, the method of nesting the end of the expandable rod E8 into the opening slot E301 can effectively prevent the two from separating during long-term use, maintain structural alignment, and ensure that the device always maintains good performance, providing a strong guarantee for stable and efficient production operations.

[0086] A spring pressure seat E9 is also provided on the support rod E3. The spring pressure seat E9 is connected to the spring plate E901. The free end of the spring plate E901 abuts against the surface of the support rod E3 in a pre-compressed state. The opening of the spring plate E901 is aligned with the opening direction of the slot E301 of the expansion and fixing rod E3. The spring plate E901 is used to clamp the rubber band. When attaching the rubber band, one layer of the rubber band is pushed into the space between the spring plate E901 and the expansion and fixing rod E3. The elasticity of the spring plate E901 achieves the mechanical self-locking performance between the spring plate E901 and the expansion and fixing rod E3, effectively preventing the rubber band from slipping off the expansion and fixing rod E3. This structure also allows the operator to operate without any tools. Simply push the single layer of the rubber band into the contact point between the spring plate E901 and the expansion and fixing rod E3. The operation is simple and quick. In addition, the setting of the spring pressure seat E9 also determines the position for fixing the rubber band, making it easy to open the rubber band smoothly later.

[0087] In actual operation, the power component E6 first drives the movable support rod E8 to rotate around the transition position E801 until it coincides with the end of the fixed support rod E3. At this time, the end of the movable support rod E8 is nested into the opening groove E301 of the fixed support rod E3. The outer diameter of the rod end after the coincidence is consistent with the outer diameter of the fixed support rod E3, and the overall diameter of the rubber band rod reaches the minimum.

[0088] The operator can insert the looped rubber band into the overlapping ends of the rods, pushing one layer of the rubber band ring between the spring plate E901 and the opening fixing rod E3. The elastic force of the spring plate E901 achieves mechanical self-locking, preventing the rubber band ring from slipping off the opening fixing rod E3. The spring pressure seat E9 fixes the position of the rubber band ring, facilitating subsequent opening operations. Subsequently, the power unit E6 drives the opening movable rod E8 in the reverse direction to unfold, so that one end of the opening movable rod E8 forms an angle with the end of the opening fixing rod E3, automatically completing the opening operation of the rubber band ring. The rubber band ring is simultaneously fitted into two sets of rubber band opening sleeve mechanisms arranged in a mirror image, thereby opening the rubber band ring.

[0089] The fixed support rod E3 is connected to the power mounting base E4, which is rotatably connected to the power rotating base E5. The power rotating base E5 is connected to the power component E6. The presence of the power rotating base E5 gives the power component E6 flexible rotation performance, enabling the power component E6 to smoothly transmit power and realize the angle conversion of the movable support rod E8, greatly enhancing the movement flexibility of the device.

[0090] The power component E6 is connected to the spreading rod E8 via an adapter E7. The adapter E7 plays a good transition and connection role, ensuring that the power can be accurately transmitted from the power component E6 to the spreading rod E8, thus guaranteeing the efficiency and stability of power transmission.

[0091] The two ends of the expandable lever E8 are respectively provided with an end power connection position E802 and a second recess position E804, and a first recess position E803 is provided between the middle transition position E801 and the second recess position E804; the recess directions of the first recess position E803 and the second recess position E804 are opposite to each other; the first recess position E803 is used to provide a depth limit when the elastic band is inserted; the second recess position E804 is used to limit the displacement of the elastic band through the reverse recess structure during the expansion operation, preventing the elastic band from slipping away from the first recess position E803 during the expansion process, which greatly improves the stability and reliability of the elastic band during the expansion process.

[0092] The expansion fixing rod E3 is connected to the pull-in slider E201, which is slidably connected to the feeding base E1. The pull-in slider E201 is driven by the feeding pull-in power component E2 to move. In this embodiment, the feeding pull-in power component E2 is a cylinder or an electric cylinder. Therefore, after the rubber band is expanded by the expansion movable rod E8 and the expansion fixing rod E3, the feeding pull-in power component E2 can drive the pull-in slider E201 to move, thereby driving the expanded rubber band to move and put the rubber band on the equipment, thus realizing automatic expansion and fitting of the rubber band.

[0093] This utility model's automatic rubber band feeding device features a movable support rod E8 and a fixed support rod E3 that automatically expand the rubber band ring. A feeding and pulling power component E2 then inserts the expanded rubber band into the device, achieving automatic rubber band feeding. The opening slot E301 of the fixed support rod E3 allows the end of the movable support rod E8 to be nested within it, minimizing the overall diameter of the rubber band feeding rod. Operators do not need to manually expand the rubber band; they only need to perform the feeding action, reducing labor intensity and improving work efficiency. The spring pressure seat E9 and spring plate E901 on the fixed support rod E3 utilize the elasticity of the spring plate E901 to achieve mechanical self-locking, preventing the rubber band ring from slipping off. Operators do not need tools; they simply push the rubber band ring in one layer from the contact point between the spring plate E901 and the fixed support rod E3, making operation simple and quick. Therefore, in the process of automatically feeding rubber band rings, the ingenious design of the mechanism also reduces human labor intensity, thereby greatly improving work efficiency.

[0094] The sewing machine assembly A includes a sewing head A1, with an auxiliary air blower F positioned in front of it. The auxiliary air blower F is used to flatten the rolled edges of the fabric during sewing, allowing the fabric to overlap and be parallel to the rubber, thus securing them together during sewing. A fabric sewing support platform A3 is positioned at the sewing location of the sewing head A1, and a sewing position air blower A2 is positioned above the fabric sewing support platform A3. The fabric sewing support platform A3 includes an elastic base A31, on which a lifting slide rod A32 and a lifting slide rail slider assembly A35 are mounted. The lifting slide rod A32 is sleeved with a lifting spring A33. The lifting spring A33, the lifting slide rail slider assembly A35, and the lifting spring A33 are all connected to a fabric contact platform A36. The fabric contact platform A36 is equipped with a material-feeding arc groove A361.

[0095] A correction component D is provided above the fabric contact table A36. The correction component D is connected to the air blowing and pressing component C. The air blowing and pressing component C includes an air blowing and pressing base C1. The air blowing and pressing base C1 is connected to an air blowing and lifting cylinder C2 and a pressing mechanism C4. The air blowing and lifting cylinder C2 is connected to a first air blowing pipe C3. The first air blowing pipe C3 is used to flatten the rolled-up parts of the fabric edge when the correction component D corrects the fabric.

[0096] The pressing mechanism C4 includes a pressing cylinder C41 and a sensor lifting slider C43. The sensor lifting slider C43 is connected to the bone position detection sensor C42. In this embodiment, the bone position detection sensor C42 is a displacement sensor and is connected to the bone position contact roller C44.

[0097] The air-blowing and pressing fabric assembly C is also equipped with a first support cylinder C5 and a second support cylinder C6. The first support cylinder C5 is connected to the first support plate C51, and the second support cylinder C6 is connected to the second support plate C61.

[0098] After the elastic band is fitted onto the expanding movable rod E8, the upper layer of the elastic band is fitted onto the fabric contact platform A36. At this time, the pressing cylinder C41 drives the bob contact roller C44 to descend and press down on the elastic band. The elastic band rotates under the drive of the auxiliary pushing support component B2. When the elastic band reaches the point of engagement and is below the bob contact roller C44, the bob contact roller C44 is lifted up because the engagement point is more protruding than the elastic band itself. This triggers the bob detection sensor C42, which transmits the information to the program control system of the sewing equipment. Based on the program settings, the needle insertion point and sewing end point of the sewing machine head A1 are determined.

[0099] The air-blowing lifting cylinder C2 is used to drive the straightening component D to rise and fall. When the fabric needs to be straightened, the straightening component D descends. When elastic bands or fabric are placed or when no straightening action is needed, the straightening component D rises.

[0100] The correction assembly D includes a rotary table D5, which is externally connected to a first motor D6, thereby enabling the rotary table D5 to rotate on its own.

[0101] The rotary base D5 is internally connected to a central drive structure D1, which includes a central shaft D101. One end of the central shaft D101 is connected to a coupling D105, which in turn connects to a second motor D7. The coupling D105 effectively transmits power and, to a certain extent, buffers and dampens vibrations, reducing vibration and impact between the motor and the central shaft D101, thus extending the service life of the components. The central shaft D101 is connected to several second bearings D103, the outer rings of which are connected to the rotary base D5 and the end cover D3. The inclusion of the second bearings D103 reduces the frictional resistance during the rotation of the central shaft D101, improving the smoothness and stability of rotation and ensuring efficient power transmission.

[0102] The rotating base D5 is fixedly connected to the mounting base D4, and the mounting base D4 is connected to the correction transmission group D2. The correction transmission group D2 includes several transmission mechanisms D201, which are arranged in a ring shape, with a transmission gap between every two transmission mechanisms D201. This ring shape and transmission gap design allows the fabric to contact the transmission mechanism D201 more smoothly when passing through the device, avoiding the fabric from getting stuck and tangled, and improving the efficiency of fabric correction and feeding. The offset distribution of the correction transmission groups D2 at both ends of the mounting base D4 results in the transmission mechanism D201 and the transmission gap on the same axis being arranged alternately. Therefore, unlike the traditional structure where the power point for moving the fabric is set in a straight line, the offset distribution of the correction transmission groups D2 allows for more comprehensive and detailed correction of the fabric, ensuring effective correction of the fabric throughout its width and improving the accuracy of correction. Moreover, due to the presence of the transmission gap, the fabric has room to move after being moved and forming folds, thus preventing excessive accumulation of fabric in a certain position. As a result, the folds in the stitches are evenly distributed, resulting in a better appearance of the sewn fabric.

[0103] The transmission mechanism D201 includes a correction belt D2014. The rotation of the central shaft D101 ultimately drives the correction belt D2014 to rotate. A portion of the correction belt D2014 protrudes outside the mounting base D4. When the correction belt D2014 rotates, it applies a lateral guiding force to the fabric. The rotation plane of the correction belt D2014 is orthogonal to the rotation axis of the central drive structure D1. This design allows the correction belt D2014 to apply a lateral correction force perpendicular to the feed direction to the fabric while it is being fed. The correction belt D2014 is made of rubber. Rubber has good elasticity and friction, allowing for better contact with the fabric and effectively applying a lateral guiding force, thus improving the correction effect. Simultaneously, the rubber material also has a certain degree of wear resistance, extending the service life of the correction belt D2014.

[0104] When the correction belt D2014 moves the fabric, it is positioned directly above the center of the shifting groove A361. The shifting groove A361 increases the contact area between the correction belt D2014 and the fabric contact platform A36, allowing the fabric to contact the correction belt D2014 over a larger area during correction, making the fabric easier to move.

[0105] The elastic setting of the fabric contact platform A36 allows it to generate elastic feedback when pressed down by the correction component D, thereby applying pressure to the fabric from both the top and bottom surfaces and increasing the force of the fabric being moved.

[0106] The mounting base D4 has a accommodating groove D401 in the middle. The accommodating groove D401 is used to accommodate the fabric that has been wrinkled by being moved, which avoids the accumulation and damage of the fabric due to wrinkles during the correction process, and ensures the flatness and integrity of the fabric, so that the fabric can be smoothly processed in subsequent operations.

[0107] In the specific structure of the transmission mechanism D201, the central shaft D101 is connected to the central worm gear D104. The transmission mechanism D201 includes an internal gear D2017, which meshes with the central worm gear D104. The side of the internal gear D2017 away from the central worm gear D104 meshes with an external gear D2013. This gear-meshing transmission method can accurately transmit power, ensuring the stability and reliability of the rotation of the alignment belt D2014. Simultaneously, gear transmission has high transmission efficiency, effectively transmitting the power from the central shaft D101 to the alignment belt D2014.

[0108] The central shaft D101 is connected to several second bearings D103, and the outer ring of the second bearings D103 is connected to the swivel base D5 and the end cover D3.

[0109] A guiding belt D2014 is fitted onto an external gear D2013. The guiding belt D2014 is a round belt. The external gear D2013 has at least one inlaid arc groove D20131, into which the guiding belt D2014 is fitted. The design of the inlaid arc groove D20131 ensures that the guiding belt D2014 is securely fitted onto the external gear D2013, preventing slippage during rotation and ensuring the accuracy and stability of power transmission. The transmission mechanism D201 also includes an inner rotating shaft D2015, which is connected to the inner gear D2017 via a fourth bearing D2016. The external gear D2013 is connected to the outer rotating shaft D2011 via a third bearing D2012.

[0110] The bearing configuration reduces the frictional resistance when the inner shaft D2015 and the outer shaft D2011 rotate, improves the flexibility and stability of rotation, and ensures the normal operation of the transmission mechanism D201.

[0111] Both sides of the mounting base D4 are provided with several inner shaft grooves D402. These inner shaft grooves D402 are connected end-to-end to form a polygonal groove, into which the inner rotating shaft D2015 is fitted. An internal gear groove D403 is vertically arranged at the center of the inner shaft groove D402, accommodating the internal gear D2017. Near the receiving arc groove D401, the mounting base D4 has an outer shaft groove D404, into which the outer rotating shaft D2011 is fitted. Perpendicular to the outer shaft groove D404 is a third belt groove D405, into which a portion of the corrective belt D2014 is fitted. These grooves provide accurate mounting positions for each component, ensuring the precision of the fit between components and making the entire device more compact and stable.

[0112] The mounting base D4 is connected to the end cap D3 on the side away from the rotating base D5. The rotating base D5 has a second groove D501, and the end cap D3 has a first groove D301. The first groove D301 connects directly to the third groove D405 on one side of the mounting base D4 to form a first correction mounting cavity. A portion of the correction actuating band D2014 is fitted into the first correction mounting cavity, while the other portion protrudes outside the rotating base D5 and the mounting base D4. The second groove D501 connects directly to the third groove D405 on the other side of the mounting base D4 to form a second correction mounting cavity. A portion of the correction actuating band D2014 is fitted into the second correction mounting cavity, while the other portion protrudes outside the rotating base D5 and the mounting base D4. The first and second correction mounting cavities provide a stable mounting space for the correction actuating band D2014, ensuring the stability and reliability of the correction actuating band D2014 during rotation.

[0113] During operation, the rotation of the central drive structure D1 generates fabric feeding power, driving the correction belt D2014 to move laterally perpendicular to the feeding direction. The exposed portion applies a lateral correction force to the fabric. The vector synthesis of the feeding and correction motions achieves directional fabric conveying and automatic correction. This design, combining feeding and correction functions, allows the fabric to undergo both feeding and correction operations simultaneously as it passes through the device, improving the efficiency of the garment manufacturing equipment and the quality of fabric processing.

[0114] The fabric correction and feeding device of this utility model avoids the accumulation and damage of fabric caused by wrinkles during the correction process by setting a accommodating arc groove D401 in the middle of the mounting seat D4, ensuring the uniformity of the wrinkle distribution formed by the sewing, so that the fabric can be smoothly processed in subsequent operations, and providing a guarantee for the normal operation of the garment equipment and the quality of fabric processing. The staggered distribution of the correction transmission group D2 allows the transmission mechanism D201 and the transmission gap on the same axis to be arranged alternately, thereby achieving a more comprehensive and detailed correction operation on the fabric. This overcomes the limitation of traditional structures that set the power point for moving the fabric in a straight line, ensuring that the fabric can be effectively corrected throughout its width. In addition, the existence of the transmission gap allows the fabric to move after being moved and forming folds, thus preventing excessive accumulation of fabric in a certain position. The fabric can move and adjust more freely in the transmission gap, avoiding the impact of local accumulation on the fabric's transport and processing quality. As a result, the folds in the stitches are evenly distributed, resulting in a better appearance of the sewn fabric and improving product quality and market competitiveness.

[0115] The fabric feeding and spreading assembly B includes auxiliary pushing support components B2 located on both sides of the fabric sewing support platform A3 and a fabric feeding spreading device B3. The auxiliary pushing support components B2 are used to cooperate with the fabric feeding spreading device B3 to connect the looped elastic band and the looped fabric. The fabric feeding spreading device B3 includes a fabric spreading lateral movement force component B301, which is connected to and drives the first base B302 to move. An elastic band connecting roller B3021 is connected to the first base B302.

[0116] The elastic band connecting roller B3021 is provided with a fabric support roller B3055 and a side pressure roller B3043 on both sides. The fabric support roller B3055 is located on the side of the elastic band connecting roller B3021 closer to the sewing head 1 and can be moved to a position coaxial with the elastic band connecting roller B3021. The side pressure roller B3043 is located on the side of the elastic band connecting roller B3021 away from the sewing head 1, and the distance between it and the elastic band connecting roller B3021 is adjustable. The elastic band connecting roller B3021 is used to connect one end of the loop-shaped elastic band, and the fabric support roller B3055 is used to connect one end of the loop-shaped fabric. The side pressure roller B3043 is used to cooperate with the fabric support roller B3055 to clamp and drive the fabric to rotate.

[0117] An auxiliary pushing support component B2 is located on the side of the sewing machine head 1 furthest from the fabric feeding and spreading device B3. The auxiliary pushing support component B2 works in conjunction with the fabric feeding and spreading device B3 to connect the looped elastic band and looped fabric. The auxiliary pushing support component B2 includes a coaxially arranged elastic band drive sleeve B201 and fabric drive sleeve B202. Both the elastic band drive sleeve B201 and the fabric drive sleeve B202 are controlled by independent motors. This independent motor control allows the elastic band and fabric to be driven at different speeds and in different ways according to actual needs, improving operational flexibility and precision. The auxiliary pushing support component B2, working in conjunction with the fabric feeding and spreading device B3, can better complete the connection and transport of the looped elastic band and looped fabric, ensuring the smooth progress of the sewing process.

[0118] Below the sewing needle of the sewing head 1 is a fabric sewing support platform B101. The upper ends of the cylinders of the elastic drive sleeve B201, fabric drive sleeve B202, elastic connecting roller B3021, fabric support roller B3055, and side pressure roller B3043 are all flush with the fabric sewing support platform B101. The fabric sewing support platform B101 provides a stable support platform for the sewing of fabric and elastic, ensuring the flatness of the fabric and elastic during the sewing process. The design of each roller and sleeve being flush with the support platform allows the fabric and elastic to be smoothly fed to the area below the sewing needle, reducing jamming and wrinkles, and improving the quality and aesthetics of the sewing.

[0119] During operation, the elastic band connecting roller B3021 and the fabric supporting roller B3055 are coaxial and positioned close to the sewing head 1. The pressure measuring roller B3043 is positioned away from the elastic band connecting roller B3021. The operator first connects the elastic band to the elastic band driving sleeve B201 and the elastic band connecting roller B3021. For ease of operation, before connecting the elastic band, the distance between the elastic band driving sleeve B201 and the elastic band connecting roller B3021 is smaller than the inner circle of the looped elastic band and the looped fabric. After the elastic band is connected, in order to fix the elastic band better, the fabric supporting transverse movement force component B301 drives the first seat B302 to move away from the sewing head 1. This causes the distance between the elastic band driving sleeve B201 and the elastic band connecting roller B3021 to increase, thereby opening the looped elastic band.

[0120] However, at this time, the fabric support roller B3055 is also pulled away from the sewing head 1, which makes subsequent fabric application inconvenient. Therefore, the fabric spreading cylinder B3053 drives the fabric support roller B3055 back to the side of the sewing head 1. Then, the operator places the loop of fabric between the fabric support roller B3055 and the fabric drive sleeve B202. Then, the fabric spreading cylinder B3053 drives the fabric support roller B3055 back to the coaxial position with the elastic band connecting roller B3021. At this position, the circular elastic band and the circular fabric are stretched to the same size. Then, driven by the first cylinder B3033, the pressure measuring roller B3043 returns to one side of the elastic band sleeve roller B3021 and abuts against the side of the circular fabric and the circular elastic band. As the pressure measuring roller B3043 is driven by the pressure measuring motor B3041 to rotate, the circular fabric and the circular elastic band rotate as well. The sewing head 1 sews the circular fabric and the circular elastic band together.

[0121] The outer diameters of the elastic band sleeve roller B3021, the fabric support roller B3055, and the side pressure roller B3043 are the same, and their axes are on the same horizontal line, which makes it easy for the operator to put the looped fabric and looped elastic bands on them.

[0122] The first seat B302 is connected to the fabric sleeve component B305. The fabric sleeve component B305 includes a second track B3051. The second track B3051 is slidably connected to a side shift seat B3052. The first seat B302 is connected to a fabric spreading cylinder B3053. The output end of the fabric spreading cylinder B3053 is connected to the side shift seat B3052.

[0123] The side shift seat B3052 is connected to the inverted turning seat B3054, and the fabric support roller B3055 is connected to the inverted turning seat B3054. The inverted turning seat B3054 is located between the fabric support roller B3055 and the sewing head 1. The setting of the inverted turning seat B3054 not only provides support for the fabric support roller B3055, but also allows the inside of the looped fabric to contact the fabric support roller B3055 after it is put on, so that the looped fabric can rotate smoothly during sewing. Therefore, the inverted turning seat B3054 can play a supporting role without hindering the operation of the equipment.

[0124] The fabric feeding and spreading device B3 includes a first slide rail B3031 and a first cylinder B3033, used to connect a first base B302 and a second base B3032. The first cylinder B3033 is mounted on the first base B302, and its output end is connected to the second base B3032. The first slide rail B3031 and the first cylinder B3033 form a linkage mechanism to connect the first base B302 and the second base B3032. A side pressure roller B3043 is connected to the second base B3032. A side pressure motor B3041 is also provided on the second base B3032. The side pressure motor B3041 is connected to the side pressure roller B3043 through a side pressure synchronous pulley set B3042. A protective cover B3044 is provided on the side pressure synchronous pulley set B3042. The side pressure roller B3043 can both press the fabric tightly to prevent it from falling off and drive the fabric and elastic to rotate, thereby achieving a complete circumferential sewing of the circular fabric and elastic.

[0125] The fabric support lateral movement component B301 includes a lateral movement base B3011, a lateral movement slide rail B3013 on the lateral movement base B3011, a lateral movement slider B3013 slidably connected to the lateral movement slide rail B3013, and a synchronous pulley B3015 and a synchronous belt B3016 arranged on the side of the lateral movement slide rail B3013; the lateral movement base B3011 is connected to a lateral movement drive motor B3012, and the lateral movement drive motor B3012 is connected to the synchronous pulley B3015 to drive the synchronous belt B3016 to rotate; the synchronous belt B3016 and the lateral movement slide rail B3013 are both connected to a lateral movement drive connecting block B3017, the lateral movement drive connecting block B3017 is U-shaped, and a cover plate B3018 is fitted into the U-shaped groove of the lateral movement drive connecting block B3017, and the two ends of the cover plate B3018 are connected to the lateral movement base B3011. The synchronous belt drives the lateral movement connecting block B3017, thereby setting the initial distance between the elastic band sleeve roller B3021 and the sewing head 1. This allows the equipment to adapt to products of different sizes. In addition, due to the use of synchronous belt drive, the power transmission is stable and precise, which can accurately control the lateral movement of the first seat B302, ensuring the accuracy and stability of the elastic band spreading operation.

[0126] The design of the U-shaped transverse drive connecting block B3017 and the cover plate B3018 enhances the stability of the structure, reduces vibration and deviation during operation, improves the reliability and service life of the device, and the cover plate B3018 can also prevent dust and other dirt from entering the interior of the transverse motion component B301, ensuring that the operation of the equipment is not disturbed.

[0127] The fabric feeding device of this utility model is equipped with an elastic band connecting roller B3021, a fabric supporting roller B3055, and a side pressure roller B3043. In use, the distance between the elastic band driving sleeve B201 and the elastic band connecting roller B3021 is less than the inner circle of the circular elastic band and the circular fabric. After the elastic band is put on, the fabric supporting roller B3055 is driven by the fabric spreading cylinder B3053 to return to the side of the sewing head 1, which facilitates the connection of the circular fabric. Then it returns to the coaxial position with the elastic band connecting roller B3021, spreading the circular fabric and the circular elastic band to the same size. This operation process not only significantly improves the convenience of connecting the elastic band and the fabric, but also ensures the high consistency of their dimensions after spreading. In the subsequent sewing process, this precise size matching makes the sewing process of the elastic band and the fabric smoother and more efficient, effectively improving the fabric holding effect. At the same time, since the elastic band and the fabric are the same size when stretched, their tensions can be better integrated, providing a solid guarantee for product quality.

[0128] The inverted bend seat B3054 not only supports the fabric support roller B3055, but also allows the inside of the looped fabric to contact the fabric support roller B3055 after it is put on, ensuring that the looped fabric rotates smoothly during sewing. While playing a supporting and guiding role, it perfectly avoids any obstruction to the overall operation of the equipment, achieving a high degree of unity between functionality and practicality.

[0129] The workflow of the integrated sewing machine for exposed ribbed fabric is as follows:

[0130] The first stage is the rubber band opening and fitting phase. The power unit E6 drives the opening movable rod E8 to rotate around the transition position E801 until it coincides with the end of the opening fixed rod E3. At this point, the end of the opening movable rod E8 is nested into the opening groove E301 of the opening fixed rod E3, and the overall diameter of the rubber band fitting rod reaches its minimum. Next, the operator fits the ring-shaped rubber band onto the coinciding rod end and pushes one layer of the rubber band ring between the spring plate E901 and the opening fixed rod E3. The elastic force of the spring plate E901 achieves mechanical self-locking, preventing the rubber band ring from slipping off the opening fixed rod E3. The spring pressure seat E9 provides a fixed position for the rubber band ring. Then, the power unit E6 drives the opening movable rod E8 in the opposite direction to unfold, so that one end of the opening movable rod E8 forms an angle with the end of the opening fixed rod E3, automatically completing the rubber band opening operation. The rubber band ring is simultaneously fitted into two sets of mirror-shaped rubber band opening and fitting mechanisms. Finally, the feeding and pulling power unit E2 (cylinder or electric cylinder) drives the pulling slider E201 to move, thereby moving the stretched elastic ring and putting the elastic ring onto the stretched conveyor seam assembly B.

[0131] The second step is the fabric and elastic band connection and preparation for sewing. The elastic band connection roller B3021 and the fabric support roller B3055 are coaxial and positioned close to the sewing head A1, while the side pressure roller B3043 is positioned away from the elastic band connection roller B3021. For ease of operation, the distance between the elastic band drive sleeve B201 and the elastic band connection roller B3021 is less than the inner circle of the looped elastic band and the looped fabric. The operator connects the elastic band to the elastic band drive sleeve B201 and the elastic band connection roller B3021. The fabric support lateral movement force component B301 drives the first seat B302 to move away from the sewing head A1, increasing the distance between the elastic band drive sleeve B201 and the elastic band connection roller B3021, thereby opening the looped elastic band. The fabric opening cylinder B3053 drives the fabric support roller B3055 back to the side of the sewing head A1. The operator places the looped fabric between the fabric support roller B3055 and the fabric drive sleeve B202. The fabric spreading cylinder B3053 drives the fabric support roller B3055 back to the coaxial position with the elastic band sleeve roller B3021. At this time, the looped elastic band and the looped fabric are stretched to the same size. The side pressure roller B3043, driven by the first cylinder B3033, returns to one side of the elastic band sleeve roller B3021 and abuts against the side of the looped fabric and the looped elastic band.

[0132] The third step is the fabric correction stage during sewing. After the fabric and elastic band are inserted, the upper layer of the looped elastic band is placed on the fabric contact platform A36. The press cylinder C41 drives the boning contact roller C44 to descend and press down on the looped elastic band. The looped elastic band rotates under the drive of the auxiliary push support component B2. When the looped elastic band is positioned below the boning contact roller C44, the boning contact roller C44 is lifted, triggering the boning detection sensor C42. The boning detection sensor C42 transmits information to the program control system of the sewing equipment to determine the needle insertion point and sewing end point of the sewing machine head A1. The blower lifting cylinder C2 drives the correction component D to descend. The rotation of the central drive structure D1 generates fabric feeding power, driving the correction belt D2014 to move laterally perpendicular to the feeding direction. The exposed part applies a lateral correction force to the fabric. The vector synthesis of the feeding motion and the correction motion realizes the directional conveying and automatic correction function of the fabric.

[0133] The side pressure motor B3041 drives the side pressure roller B3043 to rotate, which in turn rotates the circular fabric and the circular elastic band. The sewing head A1 of the sewing machine assembly A sews the circular elastic band and the circular fabric together. The fabric sewing support platform A3 provides stable support for the sewing, ensuring the flatness of the fabric and elastic band during the sewing process.

[0134] 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. A sewing machine for exposed ribbed fabric, characterized in that, Includes a stretching conveyor sewing assembly (B) and an elastic stretching sleeve assembly (E) mounted on the sewing machine assembly (A); The elastic band expansion sleeve assembly (E) includes an expansion fixed rod (E3), which is rotatably connected to the middle transition position (E801) of the expansion movable rod (E8), and one end of the expansion movable rod (E8) is connected to a power component (E6). The output end of the power component (E6) pushes the movable support rod (E8) to rotate around the fixed support rod (E3); thereby achieving a state in which one end of the movable support rod (E8) and the end of the fixed support rod (E3) are either separated or overlapped. The spreading and fixing rod (E3) is connected to the pull-in slider (E201), which is slidably connected to the feeding base (E1). The pull-in slider (E201) is driven to move by the feeding and pulling-in power component (E2). The spreading movable rod (E8) and spreading fixed rod (E3) are responsible for spreading the circular rubber band. When the slider (E201) is pulled in and moved, the spread circular rubber band can be put onto the spreading conveyor sewing assembly (B). The spreading and conveying sewing assembly (B) includes auxiliary pushing support components (B2) located on both sides of the fabric sewing support platform (A3) and a fabric feeding spreading device (B3).

2. The sewing machine according to claim 1, wherein A fabric sewing support table (A3) is equipped with a sewing station blower (A2) above it; The fabric sewing support platform (A3) includes a support platform elastic base (A31), on which a lifting slide rod (A32) and a lifting slide rail slider assembly (A35) are provided. The lifting slide rod (A32) is sleeved with a lifting spring (A33). The lifting spring (A33), the lifting slide rail slider assembly (A35), and the lifting spring (A33) are all connected to the fabric contact platform (A36). The fabric contact table (A36) is provided with a material feeding arc groove (A361). A correction component (D) is provided above the fabric contact table (A36), and the correction component (D) is connected to the air blowing and pressing component (C); The correction assembly (D) includes a rotating base (D5), which is externally connected to a first motor (D6), thereby enabling the rotating base (D5) to rotate on its own. The rotary base (D5) is internally connected to a central drive structure (D1), which includes a central rotating shaft (D101). The central rotating shaft (D101) is externally connected to a second motor (D7). The rotary base (D5) is fixedly connected to a mounting base (D4), which is connected to a correction transmission group (D2). The correction transmission group (D2) includes several transmission mechanisms (D201), which are arranged in a ring shape, with a transmission gap between each pair of transmission mechanisms (D201). The misaligned distribution of the correction transmission groups (D2) at both ends of the mounting base (D4) results in the transmission mechanism (D201) and the transmission gap on the same axis being arranged alternately. The transmission mechanism (D201) includes a correction belt (D2014). The rotation of the central shaft (D101) ultimately drives the correction belt (D2014) to rotate. A portion of the correction belt (D2014) is exposed outside the mounting base (D4). When the correction belt (D2014) rotates, it applies a lateral force to the fabric. The rotation plane of the correction belt (D2014) is orthogonal to the rotation axis of the central drive structure (D1). The mounting base (D4) is provided with a accommodating arc groove (D401) in the middle, which is used to accommodate the fabric that is wrinkled when it is moved.

3. The integrated sewing machine for exposed ribbed fabric according to claim 1, characterized in that, The spreading and fixing rod (E3) is connected to the power mounting base (E4), the power mounting base (E4) is rotatably connected to the power rotating base (E5), and the power rotating base (E5) is connected to the power component (E6). The power unit (E6) is connected to the extension rod (E8) via an adapter (E7).

4. The sewing machine as claimed in claim 1, wherein, The two ends of the spreading movable rod (E8) are respectively provided with an end power connection position (E802) and a second recess (E804), and a first recess (E803) is provided between the middle transition position (E801) and the second recess (E804). The first recess (E803) and the second recess (E804) are recessed in opposite directions; The first recess (E803) is used to provide depth limiting when the elastic band is inserted; The second recess (E804) is used to limit the displacement of the elastic band during the spreading operation by means of a reverse recess structure, preventing it from slipping away from the first recess (E803); The spreading and fixing rod (E3) is provided with an opening groove (E301). The opening groove (E301) extends from the middle of the spreading and fixing rod (E3) to the end, so that the end of the spreading and fixing rod (E3) is divided into two structures. When the spreading and movable rod (E8) rotates, its movement trajectory matches the opening groove (E301), so that the spreading and movable rod (E8) passes through the opening groove (E301).

5. The sewing machine according to claim 4, wherein The expansion and fixing rod (E3) is also provided with a spring pressure seat (E9), which is connected to a spring plate (E901). The end of the spring plate (E901) abuts against the expansion and fixing rod (E3). The opening of the spring sheet (E901) is aligned with the opening direction of the slot (E301) of the support rod (E3), and the spring sheet (E901) is used to clamp the rubber band.

6. The sewing machine of claim 2, wherein the sewing machine further comprises a tensioning device for tensioning the fabric. The central shaft (D101) is connected to the central worm gear (D104). The transmission mechanism (D201) includes an internal gear (D2017), which meshes with a central worm (D104), and the side of the internal gear (D2017) away from the central worm (D104) meshes with an external gear (D2013). The corrective belt (D2014) is sleeved on the external gear (D2013); The corrective belt (D2014) is a round belt, and the external gear (D2013) is provided with at least one inlaid arc groove (D20131), and the corrective belt (D2014) is fitted into the inlaid arc groove (D20131); The transmission mechanism (D201) includes an inner rotating shaft (D2015), which is connected to an inner gear (D2017) via a fourth bearing (D2016); and an outer gear (D2013) which is connected to an outer rotating shaft (D2011) via a third bearing (D2012). The mounting base (D4) has several inner shaft grooves (D402) on both sides. The inner shaft grooves (D402) are connected end to end to form a polygonal groove. The inner rotating shaft (D2015) is fitted into the inner shaft groove (D402). An internal gear groove (D403) is vertically provided at the center of the inner shaft groove (D402), and the internal gear groove (D403) is used to accommodate the internal gear (D2017). The mounting base (D4) is provided with an outer shaft groove (D404) near the accommodating arc groove (D401). The outer rotating shaft (D2011) is fitted into the outer shaft groove (D404). A third belt groove (D405) is provided perpendicular to the outer shaft groove (D404). A part of the correction belt (D2014) is fitted into the third belt groove (D405).

7. The sewing machine according to claim 6, wherein The corrective belt (D2014) is made of rubber and is positioned directly above the center of the material feeding arc groove (A361) when it moves the fabric.

8. The sewing machine of claim 2, wherein the sewing machine further comprises a tensioning device for tensioning the fabric. The blower pressing assembly (C) includes a blower pressing base (C1), which is connected to a blower lifting cylinder (C2) and a pressing mechanism (C4). The blower lifting cylinder (C2) is connected to a first blower pipe (C3), which is used to flatten the rolled-up parts of the fabric edges when the correction assembly (D) corrects the fabric. The pressing mechanism (C4) includes a pressing cylinder (C41) and a sensor lifting slider (C43). The sensor lifting slider (C43) is connected to a bone position detection sensor (C42), and the bone position detection sensor (C42) is connected to a bone position contact roller (C44). The blower-pressed fabric assembly (C) is also provided with a first support cylinder (C5) and a second support cylinder (C6). The first support cylinder (C5) is connected to the first support plate (C51), and the second support cylinder (C6) is connected to the second support plate (C61).

9. The sewing machine according to any one of claims 1 to 8, wherein The auxiliary pushing support component (B2) is used to cooperate with the fabric feeding and spreading device (B3) to sleeve the ring-shaped elastic band and the ring-shaped fabric; The fabric feeding and spreading device (B3) includes a fabric spreading lateral movement force component (B301), which is connected to and drives the first seat (B302) to move. An elastic band sleeve roller (B3021) is connected to the first seat (B302). The elastic band connecting roller (B3021) is provided with a fabric support roller (B3055) and a side pressure roller (B3043) on both sides respectively; the fabric support roller (B3055) is located on the side of the elastic band connecting roller (B3021) closer to the sewing head (1) and can be moved to a position coaxial with the elastic band connecting roller (B3021); the side pressure roller (B3043) is located on the side of the elastic band connecting roller (B3021) away from the sewing head (1), and the distance between it and the elastic band connecting roller (B3021) is adjustable; The elastic band sleeve roller (B3021) is used to sleeve one end of the ring-shaped elastic band, and the fabric support roller (B3055) is used to sleeve one end of the ring-shaped fabric; the side pressure roller (B3043) is used to cooperate with the fabric support roller (B3055) to clamp and drive the fabric to rotate. The elastic sleeve roller (B3021), the fabric support roller (B3055), and the side pressure roller (B3043) have the same outer diameter and their axes are on the same horizontal line. The first seat (B302) is connected to the fabric sleeve component (B305), the fabric sleeve component (B305) includes a second track (B3051), the second track (B3051) is slidably connected to the side shift seat (B3052), the first seat (B302) is connected to the fabric spreading cylinder (B3053), and the output end of the fabric spreading cylinder (B3053) is connected to the side shift seat (B3052); The side shift seat (B3052) is connected to the inverted seat (B3054), and the fabric support roller (B3055) is connected to the inverted seat (B3054); the inverted seat (B3054) is located between the fabric support roller (B3055) and the sewing machine head (1); The fabric feeding and spreading device (B3) includes a first slide rail (B3031) and a first cylinder (B3033) for connecting a first base (B302) and a second base (B3032); the first cylinder (B3033) is mounted on the first base (B302), and the output end of the first cylinder (B3033) is connected to the second base (B3032); The side pressure roller (B3043) is connected to the second seat (B3032), and the second seat (B3032) is also equipped with a side pressure motor (B3041). The side pressure motor (B3041) is connected to the side pressure roller (B3043) through the side pressure synchronous pulley set (B3042). The side pressure synchronous pulley set (B3042) is equipped with a protective cover (B3044).

10. The sewing machine as claimed in claim 9, wherein, The auxiliary pushing support component (B2) includes an elastic band drive sleeve (B201) and a fabric drive sleeve (B202) arranged coaxially, and the elastic band drive sleeve (B201) and the fabric drive sleeve (B202) are each controlled by an independent motor.

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