Intelligent four-side sewing all-in-one machine for home textiles

Abstract

The intelligent home textile four-edge sewing all-in-one machine integrates transverse and longitudinal sewing functions and is specially designed for automatically completing four-edge sewing of home textile products. After the transverse sewing part automatically cuts the fabric through the cutting mechanism, the fabric is stably conveyed to the longitudinal sewing area through the longitudinal receiving part. The longitudinal receiving part comprises a conveying belt fixed on a movable frame, and the distance between the movable frames is adjusted to adapt to fabrics with different widths; the sixth conveying belt and the eighth conveying belt can be adjusted up and down to adapt to clamping and conveying of fabrics with different thicknesses. The longitudinal sewing area is composed of two sets of symmetrical sewing units and comprises a sewing module, a guide belt, a guide strip and a label washing part, and the label washing part automatically grabs and conveys a washed label and joins the fabric for sewing. The equipment does not need manual intervention, ensures that the production process is continuous, and has high-efficiency automatic production capacity, high-precision sewing quality and intelligent secondary processing. In addition, by replacing the hemming steel plate, the flanging mode and the hemming mode can be easily switched, and various product requirements are met. Meanwhile, trademarks can be installed on the trademark installation mechanism according to needs, and the added value of products is improved. In a word, comprehensive automation of home textile product sewing is achieved, and production efficiency and flexibility are improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to a smart four-sided sewing machine for home textiles. Background Technology

[0002] China is a major global exporter of home textiles, producing and exporting large quantities of blankets, bedding, and curtains annually.

[0003] Curtains, etc. However, traditional hand sewing methods still play an important role in the production of these home textile products, especially in the hemming and overlocking process, which faces multiple challenges.

[0004] First, manual sewing is inefficient, resulting in long production cycles. Workers need to manually operate sewing machines to fold and overlock the edges of home textile products. This manual process is often difficult to complete on time when faced with large orders, limiting production capacity and market responsiveness.

[0005] Secondly, inconsistent sewing quality is another major problem. The skill level and working condition of workers directly affect the sewing quality. Differences between different workers lead to uneven sewing, especially during the folding and overlocking processes, which can easily result in unevenness and inconsistent tension, affecting the appearance of the product.

[0006] Furthermore, vertical sewing still requires manual operation, increasing production steps and labor costs, and further extending the production cycle. Meanwhile, the label installation process is complex and requires manual operation, which is not only time-consuming and labor-intensive but also prone to errors leading to inaccurate label placement, thus affecting the brand image.

[0007] Furthermore, traditional manual sewing methods struggle to meet market demands for personalized and customized products. Manual operation lacks flexibility and cannot quickly adapt to changes in style and size. During the sewing process, edge twisting is also prone to occur, where the two layers of fabric at the fold are not perfectly aligned, resulting in wavy edges that affect aesthetics and quality.

[0008] Finally, human error can also lead to uneven folds and inconsistent widths, affecting the neatness and overall quality of the product. These details are often noticeable to consumers and directly impact brand reputation and customer satisfaction.

[0009] In conclusion, traditional manual sewing methods face multiple challenges in home textile production and urgently need improvement to enhance production efficiency and product quality. Summary of the Invention

[0010] The purpose of this invention is to address the shortcomings of the aforementioned problems and provide a method based on existing horizontal sewing machines.

[0011] This home textile intelligent four-sided sewing machine can complete the sewing of the other two sides by adding mechanical structures, directly producing finished products from the fabric. It can also cleverly install trademarks for different needs and ensure product quality.

[0012] The technical solution to the problem solved by this utility model is as follows: A smart four-sided sewing machine for home textiles, comprising a horizontal sewing structure and a vertical sewing structure, characterized in that: the vertical...

[0013] The sewing section sequentially includes a longitudinal receiving section, a longitudinal sewing mechanism, and a finished product output mechanism; the longitudinal receiving section includes multiple conveyor belts, a fixed frame, and a movable frame, with conveyor belt number 5 mounted on the fixed frame and conveyor belt number 7 mounted on the movable frame; conveyor belts number 6 and 18 are positioned directly above conveyor belts number 5 and 7;

[0014] The movable frame is adjusted via a linear guide rail and a screw handwheel mounted on the fixed frame. Driving the screw to rotate moves the movable frame along the linear guide rail, thereby adjusting the distance between conveyor belts 5 and 7 to accommodate fabrics of different widths. The longitudinal sewing section consists of two symmetrical sewing units, each including a sewing module, a transition guide belt, a guide strip, and a care label section. The guide strip is installed between the transition guide belt and the sewing module to adjust and fix the edge position of the fabric. The care label section is located on one side of the longitudinal sewing section and includes a material gripping module composed of a moving cylinder and suction cups, a care label storage conveyor belt group, and a care label feeding conveyor belt group. The material gripping module feeds the care label to the care label storage conveyor belt group, which clamps and conveys it to the care label feeding conveyor belt group. A set of inclined pressure belts then pushes the label down an incline, where it meets the fabric and is pressed together before being sent to the sewing machine module for sewing, completing the care label operation.

[0015] Preferably, the transverse cutting section comprises, in sequence, a fabric feeding section, a transverse cutting section, a pressing and conveying section, a pressing rod section, and a fabric pulling section; the fabric feeding section controls the fabric to be centered through a centering device, a power roller drives the fabric conveying, and a detection hole sensor detects defective fabric; the transverse cutting section includes a cutter, which is mounted on a transverse cutting linear guide rail via a guide rail slider, the linear guide rail is mounted on the frame, a cutting servo motor is mounted at one end of the frame, a drive synchronous pulley is mounted on its shaft, and a servo motor is mounted at the other end of the frame. The driven synchronous pulleys are connected by a synchronous belt. The cutter servo motor drives them to rotate in both directions, thereby driving the cutter to cut the fabric back and forth longitudinally. The pressing and conveying section includes multiple sets of conveyor belts and pressing strip profiles. The conveyor belts move up and down to clamp and feed the fabric, while the pressing strip profiles move up and down to clamp the fabric for easy cutting by the cutter. The lower pressing rod section consists of a winch shaft, a lower pressing rod servo motor, and a pressing rod. The lower pressing rod servo motor drives the winch shaft to rotate, causing the pressing rod to rise or fall. When the fabric-pulling gripper pulls the fabric backward, the pressing rod descends to press down on the fabric. The fabric pulling section includes multiple fabric pulling linear guide rails, a gripper module, and a fabric pulling servo motor. The gripper module is mounted on the fabric pulling linear guide rails. The fabric pulling servo motor drives the gripper module to move back and forth laterally. The gripper module consists of a gripper fixing plate, multiple gripper cylinders, a gripper lowering plate, etc. When a fabric pulling cylinder is activated, it causes the gripper module to engage. The gripper lowering plate has a serrated end that matches the serrated matrix of the fabric sheet metal for insertion.

[0016] Preferably, the No. 6 and No. 8 conveyor belts are respectively installed in the same profile frame; both ends of the profile frame are equipped with boat-shaped sheet metal and driven shafts, and a longitudinal servo motor is installed above the profile frame with a drive shaft. Both the No. 6 and No. 8 conveyor belts can be driven to rotate in both directions, and spring pressure rollers are installed on the sides to press the fabric.

[0017] Preferably, the two symmetrical sewing units each include a left sewing module and a right sewing module. The left and right sewing modules are equipped with a left sewing machine and a right sewing machine, respectively. The left and right sewing machines are driven by a longitudinal servo motor through a gear and rack transmission system to move their respective base plates. The corresponding base plates slide on the sewing guide rail through sewing sliders, thereby realizing the movement of the left and right sewing machines mounted on their respective base plates.

[0018] Preferably, the two symmetrical sewing units each include a left sewing module and a right sewing module. The left sewing module includes a longitudinal left-side lower synchronous belt assembly mounted parallel to the base plate of the left sewing module, and a longitudinal left-side upper synchronous belt assembly is provided above the longitudinal left-side lower synchronous belt assembly. An upper left movable sheet metal is mounted on the crossbeam via a sheet metal slider and can move laterally with the longitudinal left-side upper synchronous belt assembly.

[0019] Preferably, the lower synchronous belt assembly for the left longitudinal sewing and the upper synchronous belt assembly for the left longitudinal sewing are connected vertically by two fixed linear guide sliders and one linear guide rail to ensure vertical alignment; a forward and reverse output gearbox consists of forward and reverse output servos.

[0020] The motor provides power, which is output to the lower synchronous belt group of the left longitudinal sewing and the upper synchronous belt group of the left longitudinal sewing through two universal joints, so that the two belt groups rotate in opposite directions at proportional speeds, thereby clamping the fabric and conveying it backward.

[0021] The longitudinal left-hand pull cylinder is installed on the left sewing machine. When the pre-folded fabric is fed over, the longitudinal left-hand pull cylinder retracts, keeping the edge of the pre-folded edge parallel to the left sewing machine needle, ensuring that the sewn fabric edges are neat and uniform.

[0022] Preferably, the longitudinal left and right guide strips of the two sets of symmetrical sewing units are also symmetrical in structure. The longitudinal left guide strip consists of a longitudinal left first guide strip and a longitudinal left second guide strip. The longitudinal left first guide strip includes a guide strip belt mounted on an integrally formed guide strip sheet metal. The longitudinal left second guide strip is mounted on a dovetail groove to ensure that the upper surface of the longitudinal left first guide strip belt is in contact with the underside of a left pre-folded edge steel plate. The contact area with the pre-folded edge steel plate can be adjusted by a dovetail groove handwheel. When the folded edge width is widened, the longitudinal left second guide strip moves inward to increase the contact area and fully support the wider pre-folded edge. The longitudinal left second guide strip includes a longitudinal left second guide strip belt mounted on a longitudinal left second guide strip profile. This profile is equipped with an up-and-down adjustable sheet metal. A spring wheel, through the action of a tension spring, pushes the belt upward to press the fabric. A matrix sensor is installed next to the longitudinal left second guide strip belt.

[0023] Preferably, the pre-folded steel plate includes a left folding main board, which is installed on a longitudinal lower left transition guide strip. A left edge adjustment plate is installed in the groove of the left folding main board and its lower plane is flush with the lower plane of the left folding main board, ensuring that the pre-folded fabric is clamped from the upper surface of the left guide strip without interference. A left U-shaped plate is installed below the left folding main board, and a left curling guide plate is installed obliquely on one side of the left U-shaped plate to facilitate the fabric entering the left U-shaped plate and being folded again in the left U-shaped plate to form a curling process.

[0024] Preferably, the label storage conveyor belt assembly consists of a lower label storage conveyor belt and an upper label storage conveyor belt, which are connected by gears to rotate in both directions to transport the labels. The label feeding conveyor belt assembly consists of an upper label feeding conveyor belt and a lower label feeding conveyor belt, which are connected by several label feeding guide posts. Each of the several label feeding guide posts is equipped with a right-hand spring to clamp the contact surfaces of the upper and lower label feeding conveyor belts, ensuring that the clamped labels do not slip and are transported backward.

[0025] The beneficial effects of this utility model are as follows: The device described in this utility model integrates horizontal and vertical sewing functions, and can automatically complete the four-sided sewing of home textile products.

[0026] The transverse cutting mechanism enables automatic fabric cutting during the sewing process without manual intervention. The longitudinal receiving section smoothly conveys the cut fabric to the longitudinal sewing section, ensuring continuous production. This system boasts highly efficient automated production capabilities, high-precision sewing quality, intelligent handling of secondary seams, and the ability to switch between folding and curling hems by replacing the hem plate, meeting the production needs of different products. Furthermore, the system allows for the installation of various trademarks, increasing product added value. The equipment described in this invention adopts a modular design, with each functional module relatively independent, facilitating maintenance and replacement. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the overall embodiment of the equipment;

[0028] Figure 2 is a schematic diagram of the overall horizontal cut section;

[0029] Figure 3 is a schematic diagram of the fabric placement section;

[0030] Figure 4 is a schematic diagram of the pressing and conveying part; Figure 5 is a schematic diagram of the pressure rod part.

[0031] Figure 6 is a schematic diagram of the fabric spreading section and the gripper module structure; Figure 7 is a schematic diagram of the longitudinal tensioning section structure;

[0032] Figure 8 is a schematic diagram of the longitudinal sewing section;

[0033] Figure 9 is a schematic diagram of two sets of symmetrical sewing unit structures; Figure 10 is a schematic diagram of the longitudinal lower left transition guide strip structure;

[0034] Figure 11 is a schematic diagram of the washing label structure shown in Figure 10;

[0035] Figure 12 is a top view of a partial structure of the washing label in Figure 11. Detailed implementation method: The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] Referring to Figure 1, the home textile intelligent four-sided sewing machine consists of a horizontal sewing section and a vertical sewing section. The operator puts the fabric into the front fabric trough, and the fabric is sewn on both sides by the joint mechanism (1), fabric feeding mechanism (2), storage conveyor belt (3), pre-folding mechanism (4), and horizontal sewing mechanism (5) that make up the horizontal sewing section. Then, the horizontal cutting section (6) cuts the sewn fabric on both sides to the required length. The cut semi-finished products are conveyed to the vertical sewing mechanism (8) by the vertical receiving section (7). Finally, the four-sided sewn finished products fall onto the discharge conveyor belt, and after a certain number are made, they are pushed out to the finished product discharge mechanism (9) by the conveyor belt. The transverse cutting section (6) is composed of a fabric feeding section (6-1), a transverse cutting section (6-2), a pressing and conveying section (6-3), a pressing rod section (6-4), and a fabric pulling section (6-5) in sequence. The fabric feeding section (6-1) is characterized by: a centering tilting rod (6-1-1), a centering photoelectric sensor (6-1-12), and a steering roller (6-1-2) being installed on both sides of the frame in sequence. The centering photoelectric sensor (6-1-12) detects whether the edge of the fabric is offset. The longitudinal swing of the centering tilting rod (6-1-1) achieves the effect of controlling the centering of the fabric. The pre-stored power roller (6-1-3) is driven by a pre-stored motor (6-1-4). The tension control rod (6-1-7) is installed in the position shown in the figure. The No. 1 splitting roller (6-1-5), the pressing roller (6-1-6), the No. 1 power roller (6-1-8), the No. 2 splitting roller (6-1-9), and the No. 2... The No. 1 power roller (6-1-11) is installed sequentially. A hole detection sensor (6-1-13) is installed between the No. 2 splitting roller (6-1-9) and the No. 2 power roller (6-1-11) for detecting defective products. Both the No. 1 power roller (6-1-8) and the No. 2 power roller (6-1-11) are driven by a servo motor (6-1-10). The cutting section (6-2) is characterized by: a linear guide rail (6-2-5) mounted on the frame (6-2-1), and the cutter (6-2-4) mounted on the linear guide rail via a guide rail slider.

[0037] (6-2-5), and can move longitudinally by connecting with a synchronous belt. The cutter servo motor (6-2-3) is installed at one end of the frame (6-2-1), and the active synchronous pulley (6-2-2) is installed on the shaft. The driven synchronous pulley (6-2-6) is installed at the other end of the frame (6-2-1). The two synchronous pulleys are connected by a synchronous belt and are driven to rotate forward and reverse by the cutter servo motor (6-2-3), and drive the cutter to cut the cloth longitudinally back and forth. The pressing and conveying section (6-3) is characterized as follows: Conveyor belt 1 (6-3-1) is installed on the cutter frame (6-2-1), and its side is fixed with sheet metal. The rotation of the conveyor belt is not affected, and its upper surface is flush with the sheet metal of the cloth (6-3-6). Conveyor belt 2 (6-3-2) is connected by guide post 1 (6-3-16) and guide post 2 (6-3-17), and is connected by cylinder 1 (6-3-11) and cylinder 2 (6-3-12) with a Y-type connector. Conveyor belt 2 (6-3-2) is installed directly above conveyor belt 1 (6-3-1), and can move up and down by the action of cylinder 1 (6-3-11) and cylinder 2 (6-3-12). When moving downward, it clamps the cloth. Then, the two sets of conveyor belts rotate simultaneously in opposite directions, feeding the clamped cloth longitudinally. Conveyor belt 6-3-1 is mounted on the crossbeam 6-3-15, with its sides fixed by sheet metal. The belt's rotation is unaffected, and its upper surface is flush with the mop sheet metal (6-3-6). The crossbeam 6-3-15 is mounted on linear guides 6-3-20 and 6-3-21, and equipped with adjusting screws to adjust the distance between conveyor belt 3 and conveyor belt 1, allowing for the cutting of smaller orders and meeting both size requirements. Conveyor belt 4 (6-3-4) is connected via guide post 4 (6-3-18) and guide post 5 (6-3-19), and connected by cylinders 3 (6-3-13) and 4 (6-3-14) using a Y-connector. Conveyor belt 4 (6-3-4) is mounted directly above conveyor belt 3 (6-3-3) and can be controlled by cylinder 3.

[0038] Cylinders (6-3-13) and (6-3-16) operate vertically. When moving downwards, they clamp the fabric. Then, the two conveyor belts rotate simultaneously in opposite directions, longitudinally feeding the clamped fabric out. The pressure strip profile (6-3-5) is connected by guide posts (6-3-8) and (6-3-9) and is controlled by cylinders (6-3-7), (6-3-10), and (7).

[0039] (6-3-22) Connected with a Y-type connector, the pressure strip profile (6-3-5) is installed above the mop sheet metal (6-3-6), and can move up and down by the action of cylinder No. 5 (6-3-7), cylinder No. 6 (6-3-10) and cylinder No. 7 (6-3-22). When moving downward, the pressure strip profile (6-3-5) and the mop sheet metal (6-3-6) clamp the cloth, making it convenient for the cutter to cut longitudinally.

[0040] Conveyor belts 1 and 3 have the same structure, so we will describe one of them: Based on the 8080 profile (6-3-1-2), servo sheet metal (6-3-1-5) and boat-shaped sheet metal (6-3-1-4) are installed at both ends respectively. The servo motor (6-3-1-1) is installed on the servo sheet metal (6-3-1-5) and a power roller is installed at the same time. The boat-shaped sheet metal (6-3-1-4) is installed with a driven roller and then a rotating belt (6-3-1-3) is installed. When the servo motor rotates, the belt rotates accordingly. After the upper and lower sets clamp the fabric, they rotate in opposite directions at the same time to push the fabric out longitudinally. The function of the boat-shaped sheet metal (6-3-1-4) is to prepare for the subsequent longitudinal receiving part. The cut fabric can be smoothly conveyed to the rear.

[0041] Conveyor belts No. 2 and No. 4 have the same structure, so we will describe one of them: Based on the 4080 profile (6-3-2-2), servo sheet metal (6-3-2-5) and boat-shaped sheet metal (6-3-2-4) are installed at both ends respectively. The servo motor (6-3-2-1) is installed on the servo sheet metal (6-3-2-5), and a power roller is also installed. The driven roller is installed on the boat-shaped sheet metal (6-3-2-4), and then the rotating belt (6-3-2-3) is installed. The spring pressure roller (6-3-2-6) is installed on the 4080 profile. On the side of the profile (6-3-2-2), the pressure rollers are densely installed. By pulling the pressure rollers with springs, the belt is pressed down. For sewing fabrics of different thicknesses, it can effectively press the fabric tightly between the two conveyor belts. When the servo motor rotates, the belt rotates accordingly. After the upper and lower sets clamp the fabric, they rotate in opposite directions at the same time to push the fabric out longitudinally. The function of the boat-shaped sheet metal (6-3-2-4) is to prepare for the subsequent longitudinal connection part. The cut fabric can be smoothly conveyed to the rear.

[0042] The lower pressure rod section (6-4) is characterized by: a winch shaft (6-4-1) mounted on the side frames on both sides, driven to rotate by a servo motor (6-4-3); two ropes (6-4-4) and (6-4-5) are attached to both sides of the winch shaft (6-4-1); and a pressure rod is attached below the two ropes.

[0043] As the winch shaft (6-4-1) rotates, the pressure rod (6-4-2) rises or falls. When the cloth-releasing gripper pulls the cloth backward, the pressure rod (6-4-2) falls to an appropriate position, gently pressing down the cloth fed out by the cloth-releasing part (6-1) to ensure accurate subsequent cloth cutting dimensions. The fabric spreading section (6-5) is characterized as follows: The No. 1 square tube linear guide rail assembly (6-5-4) is mounted on sliders (6-5-8) and (6-5-9), and the two sliders are mounted on the fabric spreading machine frame as shown in the diagram; similarly, the No. 2 square tube linear guide rail assembly (6-5-5) is mounted on sliders (6-5-10) and (6-5-11), and the two sliders are mounted on the fabric spreading machine frame as shown in the diagram; the No. 3 rack and pinion linear guide rail assembly (6-5-3) is mounted on sliders (6-5-12) and (6-5-13), and the two sliders are mounted on the fabric spreading machine frame as shown in the diagram; the No. 4 square tube linear guide rail assembly (6-5-6) is mounted on sliders (6-5-14) and (6-5-15), and the two sliders are mounted on the fabric spreading machine frame as shown in the diagram; the No. 5 square tube linear guide rail assembly (6-5-7) is mounted on slider (6-5-16). On the slider (6-5-17), two sliders are installed on the fabric spreading machine frame as shown in the figure; five linear guide rails are arranged at equal intervals in sequence, and a gripper module (6-5-1) is installed at the end of them for gripping the fabric. The rack and pinion linear guide rail assembly (6-5-3) cooperates with the gear on the servo motor (6-5-2). When the motor rotates, it drives the gripper module (6-5-1) to move back and forth laterally. The gripper module (6-5-1) is characterized by: a gripper fixing plate (6-5-1-1) mounted on a combination of 5 linear guide rails; gripper cylinders 1 to 10 are mounted at equal intervals on the gripper fixing plate (6-5-1-1); gripper cylinders 1 to 10 are respectively shown in Figures (6-5-1-3) to (6-5-1-12); the ends of the 10 cylinder shafts are respectively connected to the gripper lower plate (6-5-1-2); the cylinders operate simultaneously, driving the gripper module to engage; the gripper lower plate (6-5-1-2) has a serrated shape for clamping the cloth end, and the cloth-pulling sheet metal (6-3-6) also has a corresponding serrated matrix; the two fit together and insert, making it convenient to grasp the end of the cut cloth laterally.

[0044] The working principle of the transverse cutting section (6) is as follows: The ends of the fabric sewn on both sides are clamped by the cloth sheet metal (6-3-6) and the pressing strip profile (6-3-5). Conveyor belts 2 (6-3-2) and 4 (6-3-4) are lifted by cylinders respectively. The gripper module (6-5-1) moves laterally to the end of the cloth at the cloth end of the cloth sheet metal (6-3-6) and then clamps the cloth. The pressing strip profile (6-3-5) rises, the gripper module (6-5-1) begins to retreat, and the cloth feeding section (6-1) begins to release the cloth at the same time. When the gripper module retreats to its position, the pressure bar (6-4-2) descends. When the cloth feeding section (6-1) finishes feeding the cloth, the pressure bar (6-4-2) completely presses the cloth. At this time, the pressing strip profile (6-3-5), conveyor belt 2 (6-3-2) and 4 Conveyor belts (6-3-4) are pressed down by cylinders, and then the transverse cutter (6-2) cuts the fabric transversely. At this time, the gripper module releases the end of the fabric, the pressure bar (6-4-2) rises, and then conveyor belts 1 (6-3-1), 2 (6-3-2), 3 (6-3-3) and 4 (6-3-4) clamp the two ends of the fabric respectively, and then bite and rotate to send the fabric longitudinally to the longitudinal receiving part (7).

[0045] When a defective product with holes is found in the fabric, the hole detection sensor sends a signal, and the control program calculates the defective portion.

[0046] After the cutting process, the gripper module releases, and at the same time, conveyor belts No. 2 and No. 4 are lifted, causing the defective fabric to fall onto the defective conveyor belt, from which it is then conveyed out.

[0047] The transverse sewing section transitions the fabric to the longitudinal sewing section via the transverse cutting section (6). The longitudinal sewing section sequentially includes a longitudinal receiving section (7), a longitudinal sewing mechanism (8), and a finished product discharge mechanism (9). The longitudinal receiving section (7) includes multiple conveyor belts, a fixed frame, and a movable frame. A No. 5 conveyor belt (7-1) is installed on the fixed frame of the longitudinal receiving section (7), and its upper surface is flush with the upper surface of a No. 1 conveyor belt (6-3-1). The joint is a beveled fit.

[0048] A small gap is left; a No. 7 conveyor belt (7-3) is installed on the moving frame (7-5) of the longitudinal connecting part (7), and its upper surface is flush with the upper surface of a No. 3 conveyor belt (6-3-3). The joint is a beveled fit with a small gap; both the No. 5 conveyor belt (7-1) and the No. 7 conveyor belt (7-3) are conveyor belts built on the basis of 8080 profile, so that both ends of the fabric can be completely transferred to the sewing part. Conveyor belt 6 (7-2) is installed directly above conveyor belt 5 (7-1) and can be finely adjusted up and down to ensure that fabrics of different thicknesses can be clamped and conveyed longitudinally. Conveyor belt 8 (7-4) is installed on the moving frame (7-5) and is located directly above conveyor belt 7 (7-3). It can also be finely adjusted up and down to ensure that fabrics of different thicknesses can be clamped and conveyed longitudinally. In order to accommodate small-sized orders, the moving frame (7-5) can be moved closer to conveyor belt 5. The moving frame (7-5) is installed on the linear guide rails (7-5-1) and (7-5-2). The screw handwheels (7-5-3) and (7-5-4) are installed on the fixed frame of the longitudinal receiving part (7). The distance between conveyor belts 5 and 6 and conveyor belts 7 and 8 can be adjusted by the handwheels to realize the processing of small-sized orders. Conveyor belts 6 (7-2) and 6 (7-2) are conveyor belts built based on 8080 profile. The principle of conveyor belt No. 5 (7-1) and conveyor belt No. 7 (7-3) is similar.

[0049] Description of conveyor belt No. 5 (7-1): Conveyor belt No. 5 (7-1) is characterized by 8080 profile (7-1-1) with boat-shaped sheet metal (7-1-3) and (7-1-4) installed at both ends and with driven shafts. Servo motor (7-1-2) is installed below 8080 profile (7-1-1) and has a drive shaft. Belt No. 5 (7-1-5) is driven by the servo motor shaft and can rotate in both directions. The corresponding small belt (7-1-6) is installed in the position shown in the figure to facilitate subsequent conveyor belt transmission.

[0050] The principles of conveyor belt 6 (7-2) and conveyor belt 8 (7-4) are similar; the features of conveyor belt 6 (7-2) are that the two ends of the 8080 profile (7-2-1) are equipped with boat-shaped sheet metal (7-2-3) and (7-2-4) and driven shafts are installed. The servo motor (7-2-2) is installed above the 8080 profile (7-2-1) and has a drive shaft. The belt 6 (7-2-5) is driven by the servo motor shaft and can rotate in both directions. The spring pressure roller (7-5-6) is installed on the side of the 8080 profile (7-2-1). The pressure rollers are densely installed. By pulling the pressure rollers with springs, the belt is pressed down. For sewing fabrics of different thicknesses, the fabric can be effectively pressed between the two conveyor belts. The two sets of belts clamp the fabric and push it towards the longitudinal sewing mechanism (8).

[0051] The longitudinal sewing mechanism (8) consists of two sets of sewing units symmetrically arranged on the left and right sides. Each set includes a sewing module, transition guide belt, guide strip, and washing label. The left side consists of: longitudinal left sewing module (8-1), longitudinal upper left transition guide belt (8-3), longitudinal lower left transition guide belt (8-5), longitudinal left No. 1 guide strip (8-7), and longitudinal left No. 2 guide strip (8-9). The right side consists of: longitudinal right sewing module (8-2), longitudinal upper right transition guide belt (8-4), longitudinal lower right transition guide belt (8-6), and longitudinal right...

[0052] Guide strip #1 (8-8) and longitudinal right guide strip #2 (8-10) and wash label section (8-11).

[0053] The longitudinal left sewing module (8-1) is characterized as follows: the left sewing module base plate (8-1-7) is mounted on linear guide rails (8-1-2) and (8-1-3) via four guide rail sliders, meaning the left sewing module (8-1) moves laterally and is fixed in place by screws. The left ball screw (8-1-18) can move laterally under the drive of the left overall movement servo motor (8-1-17). Two linear optical shafts (8-1-5) and (8-1-6) are mounted on the left sewing module base plate (8-1-7). The longitudinal left base plate 1 (8-1-8) is mounted on the two optical shafts via four housing bearings. The longitudinal left sewing machine base plate 2 (8-1-9) is mounted on linear guide rails (8-1-10 and 8-1-11) via four linear sliders. The linear guide rails (8-1-10 and 8-1-11) are mounted on the longitudinal left base plate 1.

[0054] On (8-1-8), the longitudinal left sewing machine (8-1-1) is installed on the longitudinal left sewing machine base plate 2 (8-1-9). The longitudinal left sewing machine can move longitudinally through gear and rack transmission under the rotation of the longitudinal moving servo motor (8-1-10), ensuring that after the sewing machine breaks the thread, it can move longitudinally to the broken thread and continue to complete the finished product.

[0055] The longitudinal left sewing machine can be pulled out longitudinally via four housing bearings, facilitating threading, sewing machine maintenance, and sewing edge finishing. The longitudinal left-side lower synchronous belt assembly (8-1-2) is mounted parallel to the left sewing module base plate (8-1-7). The longitudinal left-side upper synchronous belt assembly (8-1-3) is connected via four guide posts and mounted on the upper left movable sheet metal (8-1-16). Each of the four guide posts is equipped with four springs; pre-tensioning these four springs ensures appropriate pressure from the upper longitudinal left-side synchronous belt assembly (8-1-3) on the lower synchronous belt assembly. The upper left movable sheet metal (8-1-16) is connected via six guide posts. A linear slider is mounted on the crossbeam above the longitudinal sewing machine and can move laterally with the longitudinal left sewing upper synchronous belt assembly (8-1-3). The longitudinal left sewing lower synchronous belt assembly (8-1-2) and the longitudinal left sewing upper synchronous belt assembly (8-1-3) are vertically and vertically aligned by two fixed linear guide sliders and a linear guide rail (8-2-15). There is a certain gap between the two synchronous belts in the left sewing lower synchronous belt assembly (8-1-2) and the left sewing upper synchronous belt assembly (8-1-3), ensuring that the fabric is pressed tightly while leaving a certain gap, thus providing space for the sewing machine needle to sew up and down. The longitudinal left sewing machine is powered by a servo motor (8-2-4) driven by a belt. The longitudinal left sewing machine uses a forward and reverse output gearbox.

[0056] (8-1-13) is powered by a servo motor (8-1-14), which outputs power to the longitudinal left sewing lower synchronous belt group (8-1-2) and the longitudinal left sewing upper synchronous belt group (8-1-3) through two universal joints, so that the two belt groups rotate in opposite directions at a 1:1 ratio, so that the fabric is clamped and conveyed backward; the longitudinal left pull cylinder (8-1-19) is installed on the sewing machine, and the pull and cylinder are connected. When the pre-folded fabric is conveyed, the longitudinal left pull cylinder (8-1-19) retracts, so that the edge of the pre-folded edge is always parallel to the sewing machine needle, ensuring that the sewn fabric edge is neat and uniform;

[0057] The external thread cutting feature of the sewing machine is as follows: The left thread cutting cylinder (8-1-1-1) is connected to the sewing machine head via sheet metal. The cylinder shaft is connected to the thread cutting sheet metal (8-1-1-2). The thread cutting sheet metal (8-1-1-2) is mounted on a vertical linear guide rail (8-1-1-3), and a thread cutting blade (8-1-1-4) is installed at its lower end. When the cylinder is activated, the thread cutting sheet metal (8-1-1-2) drives the thread cutting blade (8-1-1-4) downward. A soft material is installed directly below the blade, and the blade cuts the sewing thread on the soft material, completing the external thread cutting.

[0058] The right longitudinal sewing module has the same features as the left longitudinal sewing module: the base plate of the right sewing module is mounted on the linear guide rail and the linear guide rail via 4 guide rail sliders, that is, the right sewing module can move laterally and is fixed in place by screws, and the right ball screw can move laterally under the drive of the right overall movement servo motor.

[0059] Two linear optical axes are mounted on the right sewing module base plate. The longitudinal right base plate is mounted on the two optical axes via four housing bearings. The longitudinal right sewing machine base plate is mounted on the linear guide rail via four linear sliders. The linear guide rail is mounted on the longitudinal right base plate, and the longitudinal right sewing machine is mounted on the longitudinal right sewing machine base plate. The longitudinal right sewing machine can move longitudinally under the rotation of the longitudinal servo motor through gear and rack transmission, ensuring that after the sewing machine breaks the thread, it can move longitudinally to the broken thread and continue to complete the finished product. The longitudinal right sewing machine can be pulled out longitudinally via the four housing bearings for easy threading, sewing machine maintenance, and finishing of the longitudinal sewing sewing edges. The longitudinal right sewing lower synchronous belt assembly is mounted parallel to the right sewing module base plate, and the longitudinal right sewing upper synchronous belt assembly is connected by four guide posts and mounted on the upper right moving sheet metal. The four guide posts are respectively installed...

[0060] There are 4 springs. By pre-tensioning these 4 springs, the pressure of the upper synchronous belt group on the lower synchronous belt group in the longitudinal right sewing is ensured to be appropriate. The upper right moving sheet metal is mounted on the crossbeam above the longitudinal sewing via 6 linear sliders, and can move laterally with the upper synchronous belt group in the longitudinal right sewing. The lower synchronous belt group in the longitudinal right sewing and the upper synchronous belt group in the longitudinal right sewing are connected vertically and vertically by two fixed linear guide sliders and one linear guide rail, ensuring vertical alignment. There is a certain gap between the two synchronous belts in the lower synchronous belt group in the right sewing and a certain gap between the two synchronous belts in the upper synchronous belt group in the right sewing, ensuring that the fabric is pressed tightly while leaving a certain gap, thus allowing space for the sewing machine needle to sew up and down. The power of the longitudinal right sewing machine is driven by a servo motor via a belt.

[0061] The forward and reverse output gearbox used in the right-hand longitudinal sewing machine has the same structure as that of the left-hand longitudinal sewing machine. It is also powered by a servo motor and outputs power to the lower and upper synchronous belt sets of the right-hand longitudinal sewing machine through two universal joints. This causes the two belt sets to rotate in opposite directions at a 1:1 ratio, which clamps the fabric and feeds it backward. The right-hand longitudinal pull cylinder is installed on the sewing machine. The pull cylinder is connected to the cylinder. When the pre-folded fabric is fed in, the right-hand longitudinal pull cylinder retracts, keeping the edge of the pre-folded edge parallel to the sewing machine needle, ensuring that the sewn fabric edges are neat and uniform. The external thread cutting feature of the right-hand sewing machine is the same as that of the left-hand machine.

[0062] The longitudinal upper left transition guide belt (8-3) is characterized as follows: the longitudinal upper left transition guide belt (8-3) is installed at the position shown in the figure, above the longitudinal upper left transition guide belt (8-5), with one end close to the longitudinal upper left synchronous belt group (8-1-3) and the other end close to the conveyor belt (7-4).

[0063] Four guide pillars (8-3-3), (8-3-4), (8-3-5), and (8-3-6) are installed on the upper horizontal adjustment sheet metal (8-3-1) and (8-3-2); the four guide pillars are connected to the upper left moving sheet metal (8-1-16), and pressure springs (8-3-7) are installed on the guide pillars respectively.

[0064] (8-3-8), (8-3-9) and (8-3-10): Pressure nuts (8-3-11) and (8-3-12) are respectively installed on the guide post.

[0065] (8-3-13) and (8-3-14) can be adjusted by adjusting the pressure nut to make the upper left transition guide belt slightly up and down, so as to ensure that the pressure with the lower left transition guide belt is moderate, thus making the fabric press appropriately; the upper horizontal adjustment sheet metal (8-3-1) and (8-3-2) are respectively installed on the side plates (8-3-19) and (8-3-20), and the belt (8-3-18) is driven by the drive shaft, and the drive shaft is equipped with a meshing gear (8-3-17); the power servo motor (8-3-15) is equipped with a meshing gear (8-3-16) that meshes with the meshing gear (8-3-17) to drive the belt to rotate.

[0066] Similarly, the longitudinal upper right transition guide belt (8-4) is characterized as follows: the longitudinal upper right transition guide belt (8-4) is installed in the position shown in the figure, above the longitudinal upper right transition guide belt (8-6), with one end close to the longitudinal upper right synchronous belt assembly (8-2-3) and the other end close to the conveyor belt (7-2); the upper transverse adjustment sheet metal (8-4-1) and (8-4-2) are equipped with 4 guide posts (8-4-3), (8-4-4),

[0067] (8-4-5) and (8-4-6); 4 guide posts are connected to the upper right movable sheet metal (8-2-16), and pressure springs (8-4-7), (8-4-8), (8-4-9) and (8-4-10) are installed on the guide posts respectively; pressure nuts (8-4-11) are installed on the guide posts respectively.

[0068] (8-4-12), (8-4-13), and (8-4-14) can be adjusted by adjusting the pressure nut to make slight up-and-down adjustments to the upper right transition guide belt, ensuring moderate pressure with the lower right transition guide belt, thus ensuring the fabric is properly compressed; the upper right lateral adjustment sheet metal (8-41) and (8-4-2) are respectively installed on the side plates (8-4-19) and (8-4-20), and the belt (8-4-18) drives the belt through the drive shaft.

[0069] The drive shaft is equipped with a meshing gear (8-4-17); the power servo motor (8-4-15) is equipped with a meshing gear (8-4-16) that meshes with the meshing gear (8-4-17), driving the belt to rotate.

[0070] The longitudinal lower left transition guide belt (8-5) is characterized as follows: the upper plane of the longitudinal lower left transition guide belt (8-5) is level with the upper plane of the lower conveyor belt of the longitudinal left sewing module (8-1) and they are close to each other; the other end is level with the upper plane of the conveyor belt (7-3) and they are close to each other.

[0071] The longitudinal lower left transition guide belt (8-5) is mounted on two linear guide rails (8-5-2) and (8-5-3) via two linear sliders, and a dovetail groove slide (8-5-1) is installed in the middle. Adjusting the slide allows the longitudinal lower left transition guide belt (8-5) to move laterally and misalign with the longitudinal left sewing module (8-1), thus adjusting the width of the finished seam. The linear guide rails (8-5-2) and...

[0072] (8-5-3) is installed on the movable sheet metal (8-5-4), which is connected to the left sewing module base plate (8-1-7) to ensure that the longitudinal lower left transition guide belt (8-5) moves along with the sewing module when it moves laterally; the movable sheet metal (8-5-4) is installed on the linear guide rail via a linear slider; the longitudinal left first guide strip (8-7) is installed on the sheet metal (8-5-5) and can be finely adjusted up and down; ensuring that the upper surface of the longitudinal left first guide strip (8-7) belt is in contact with the underside of the pre-folded steel plate (8-5-6); the longitudinal left first guide strip (8-7): the guide strip belt (8-7-2) is installed on the one-piece molded sheet metal (8-7-3), and the winding method is shown in the figure. Its power is provided by the servo motor (8-7-1).

[0073] The longitudinal left second guide bar (8-9) is installed on the dovetail groove (8-9-1) and can be finely adjusted up and down; ensuring that the upper surface of the longitudinal left first guide bar (8-7) belt is in contact with the underside of the pre-folded steel plate (8-5-6); the contact area with the pre-folded steel plate (8-5-6) can be adjusted by the dovetail groove handwheel. When the folding width is widened, the longitudinal left second guide bar (8-9) moves inward to increase the contact area, so as to fully support the wider pre-folded edge;

[0074] The longitudinal left guide bar 2 (8-9) is characterized as follows: the guide bar belt (8-9-2) is installed on the profile (8-9-3), and its winding method is shown in the figure. The servo motor (8-9-1) provides power for it. The profile (8-9-3) is installed on the up and down adjustment sheet metal (8-9-6). The spring wheel (8-9-5) pushes the belt upward through the action of the tension spring, pressing the fabric. There are multiple spring wheels to ensure uniform force. A matrix sensor (8-9-4) is installed next to the belt to sense the amount of pre-folded fabric, thereby controlling how much the left edge adjustment plate (8-5-6-3) extends and controlling the pre-folding fine adjustment.

[0075] The belt (8-5-8) of the longitudinal left lower transition guide belt (8-5) is installed as shown in the figure, and its power is provided by the servo motor (8-5-7); the left pre-folding steel plate (8-5-6) is installed parallel to the belt (8-5-8), with the edge protruding to the width required for pre-folding; when the fabric is conveyed to the left transition guide belt, it starts from the lower surface of the longitudinal left first guide bar (8-7), cooperating with the small conveyor belt (8-5-9) to first fold the fabric protruding from the edge downwards until it is completely parallel and attached to the lower surface of the left pre-folding steel plate (8-5-6). At this time, the upper surface of the longitudinal left first guide bar (8-7) and the lower surface of the left pre-folding steel plate (8-5-6) press the pre-folded fabric tightly and continue to feed it forward; the longitudinal left second The lower surfaces of guide strip (8-9) and pre-folded edge steel plate (8-5-6) continue to receive the incoming fabric and transport it to the longitudinal left sewing module. The left pre-folded edge steel plate (8-5-6) is characterized by: the left pre-folded edge main plate (8-5-6-1) being installed on the longitudinal lower left transition guide strip (8-5), as shown in the figure; and the left edge adjusting plate (8-5-6-3) being installed in the groove of the left pre-folded edge main plate (8-5-6-1), with its lower plane flush with the lower plane of the left pre-folded edge main plate (8-5-6-1), ensuring the pre-folded edge surface...

[0076] The material is clamped and fed over the longitudinal left guide bar No. 2 (8-9) without interference. The servo motor (8-5-6-2) drives the left edge adjustment plate (8-5-6-3) to move through the gear rack. The photoelectric switch determines the amount of pre-folding and adjusts the extension and retraction of the left edge adjustment plate (8-5-6-3) to fine-tune the pre-folding.

[0077] For the left hemming process, the pre-wound steel plate needs to be replaced. The left hemming main plate (8-5-6-1) is installed on the longitudinal lower left transition guide strip (8-5), as shown in the figure. The left U-shaped plate (8-5-6-5) is installed below the left folding main plate (8-5-6-1). The left hemming guide plate (8-5-6-4) is installed at an angle as shown in the figure, with one side tilted up to facilitate the entry of the folded fabric beginning end into the left U-shaped plate.

[0078] (8-5-6-5), the left hem guide plate (8-5-6-4) is inserted into the left U-shaped plate (8-5-6-5). As the folded fabric enters the left U-shaped plate, it will be folded again to form the hem.

[0079] The longitudinal lower right transition guide belt (8-6) is characterized as follows: the upper plane of the longitudinal lower right transition guide belt (8-6) is level with the upper plane of the lower conveyor belt of the longitudinal right sewing module (8-2) and they are close to each other; the other end is level with the upper plane of the conveyor belt (7-1) and they are close to each other.

[0080] The longitudinal lower right transition guide (8-6) is mounted on two linear guides (8-6-2) and (8-6-3) via two linear sliders, and a dovetail groove slide (8-6-1) is installed in the middle. Adjusting the slide allows the longitudinal lower right transition guide (8-6) to move laterally and misalign with the longitudinal right sewing module (8-2), thus adjusting the width of the finished seam. The linear guides (8-6-2) and...

[0081] (8-6-3) is installed on the movable sheet metal (8-6-4), which is connected to the right sewing module base plate (8-2-7) to ensure that the longitudinal lower right transition guide belt (8-6) moves with the sewing module when it moves laterally; the movable sheet metal (8-6-4) is installed on the linear guide rail via a linear slider; the longitudinal right No. 1 guide strip (8-8) is installed on the sheet metal (8-6-5) and can be finely adjusted up and down; ensuring that the upper surface of the longitudinal right No. 1 guide strip (8-8) is in contact with the underside of the pre-folded steel plate (8-6-6).

[0082] The longitudinal right guide bar 1 (8-8) is characterized by: a guide bar belt (8-8-2) mounted on a one-piece molded sheet metal (8-8-3), with the winding method shown in the figure, and its power provided by a servo motor (8-8-1). The longitudinal right guide bar 2 (8-10) is mounted in a dovetail groove.

[0083] On (8-10-1), and can be finely adjusted up and down; ensure that the upper surface of the longitudinal right No. 1 guide bar (8-8) belt is in contact with the underside of the pre-folded edge steel plate (8-6-6); the contact area with the pre-folded edge steel plate (8-6-6) can be adjusted by the dovetail handwheel. When the folded edge width is widened, the longitudinal right No. 2 guide bar (8-10) moves inward to increase the contact area, so as to fully support the wider pre-folded edge; the longitudinal left No. 2 guide bar (8-10) is characterized by: the guide bar belt (8-10-2) is installed on the profile (8-10-3), and its winding method is shown in the figure. The servo motor (8-10-1) provides power for it. The profile (8-10-3) is installed on the up-and-down adjustable sheet metal (8-10-6). The spring wheel (8-10-5) pushes the belt upward through the action of the tension spring, pressing the fabric together. There are multiple spring wheels to ensure even force distribution. A matrix sensor (8-10-4) is installed next to the belt to sense the amount of pre-folded fabric, thereby controlling how much the left edge adjustment plate (8-6-6-3) extends and controlling the fine adjustment of the pre-fold.

[0084] The belt (8-6-8) of the longitudinal lower right transition guide belt (8-6) is installed as shown in the figure, and its power is provided by a servo motor (8-6-7); the right pre-folded edge steel plate (8-6-6) is installed parallel to the belt (8-6-8), with the edge protruding to the width required for pre-folding; when the fabric is conveyed to the right transition guide belt, it begins to bend the fabric protruding from the edge downwards from the lower surface of the longitudinal right first guide strip (8-8), cooperating with the small conveyor belt (8-6-9), until it is completely parallel to the lower surface of the right pre-folded edge steel plate (8-6-6).

[0085] At this point, the upper surface of the right first guide bar (8-8) and the lower surface of the right pre-folded edge steel plate (8-6-6) press the pre-folded fabric tightly and continue to feed it forward; the lower surface of the right second guide bar (8-10) and the pre-folded edge steel plate (8-6-6) continue to receive the incoming fabric and feed it to the right sewing module; the right pre-folded edge steel plate (8-6-6) is characterized by: the right folding main plate (8-6-6-1) is installed on the lower right longitudinal transition guide belt (8-6), as shown in the figure, and the right edge adjustment plate (8-6-6-3) is installed in the groove of the right folding main plate (8-6-6-1), and its lower plane is flush with the lower plane of the right folding main plate (8-6-6-1), ensuring that the pre-folded fabric is clamped and fed over by the upper surface of the right second guide bar (8-10) without interference.

[0086] The servo motor (8-6-6-2) drives the left edge adjustment plate (8-6-6-3) to move via a gear and rack. A photoelectric switch determines the amount of pre-folding and adjusts the extension and retraction of the left edge adjustment plate (8-6-6-3) to fine-tune the pre-folding. The right edge rolling process requires replacing the pre-rolling steel plate. The right edge rolling main plate (8-6-6-1) is installed on the longitudinal lower right transition guide belt (8-6), as shown in the figure. The left U-shaped plate (8-6-6-5) is installed below the right edge rolling main plate (8-6-6-1). The right edge rolling guide plate (8-6-6-4) is installed at an angle as shown in the figure, with one side tilted up to facilitate the entry of the folded fabric beginning end into the left U-shaped plate (8-6-6-5). The right edge rolling guide plate (8-6-6-4) is inserted into the right U-shaped plate (8-6-6-5). As the folded fabric enters the right U-shaped plate, it will be folded again to form the edge rolling process.

[0087] The label upper section (8-6-6-10) is divided into three parts: a label gripping section, a label storage conveyor belt, and a label feeding conveyor belt. The label gripping section is characterized by: the gripping module (8-6-10-1) and the label storage conveyor belt being vertically positioned; a right suction cup is mounted on the right side of the horizontally moving cylinder (8-6-10-5) on the gripping module (8-6-10-1); below the suction cup are three label storage boxes, namely (8-6-10-2), (8-6-10-3), and (8-6-10-4). The boxes can be customized in size according to different labels to accommodate labels of various sizes.

[0088] After the lateral movement cylinder (8-6-10-5) grabs the washing label, it moves laterally to the washing label storage conveyor belt. Then, the cylinder is lowered, and the washing label is placed on the washing label storage lower conveyor belt (8-6-10-7). This belt is a negative pressure belt, and the washing label is sucked in after being placed down. If it is necessary to add a stacked label, the material grabbing module (8-6-10-1) grabs another washing label and places it on top, stacking them together. Then, the washing label storage lower conveyor belt (8-6-10-7) and the washing label storage upper conveyor belt (8-6-10-6) rotate together, and the washing label is clamped and sent to the washing label feeding conveyor belt. The upper and lower conveyor belts form forward and reverse rotation through gear meshing, forming a conveying effect. Its power is provided by the servo motor (8-6-10-8). The conveyor belt can move a little, then grab and move again, forming the effect of storing washing labels.

[0089] The label feeding conveyor belt is characterized by its similar mechanism to the label storage conveyor belt, consisting of an upper label feeding conveyor belt (8-6-10-9) and a lower label feeding conveyor belt (8-6-10-10). The two belts are connected by four guide pillars, each equipped with a right-hand spring. This clamps the contact surfaces of the two belts, preventing the labels from slipping and ensuring proper backward transport. The two sets of belts rotate in both directions via gear meshing, creating a conveying effect. Power is provided by a servo motor (8-6-10-11). The position of the labels can be set in the system. Once the finished product has been delivered to a certain length, the label feeding conveyor belt starts, maintaining the same speed as the longitudinal right guide bar (8-8). The labels begin to enter the ramp with the same speed as the longitudinal right guide bar (8-8). The ramp pressing belt (8-6-10-11) is connected to the longitudinal right guide bar (8-8) via gear meshing, forming a ramp pressing belt. Once the label feeding conveyor belt starts and feeds the labels in, the labels will climb the inclined belt and meet the folded fabric above.

[0090] Then they are pressed together and sent to the sewing machine module for sewing, completing the labeling process; this structure allows for various label combinations and placement at different distances.

[0091] The working principle of the longitudinal sewing part (8) is as follows: the longitudinal receiving part sends the cut fabric over, and the transition guide belts on the left and right sides rotate accordingly. The left and right sides can move independently in real time. The matrix sensor at the end of the longitudinal receiving part senses the edge of the fabric to adjust the left and right sides to achieve the first edge control and ensure the neatness of the folded edge. Then, through the matrix sensor of the left and right guide strips 2, the alignment of the pre-folded edge is adjusted to achieve the second alignment. When the sewing machine starts sewing, the two sewing machines pull together to ensure the third edge alignment, thereby achieving perfect sewing of the fabric. Then, the sewn product falls onto the output conveyor belt and the finished product is transported out for inspection and packaging at the next work station.

Claims

1. A smart four-sided sewing machine for home textiles, consisting of a horizontal sewing section and a vertical sewing section, characterized by: The longitudinal sewing section sequentially includes a longitudinal receiving section, a longitudinal sewing mechanism, and a finished product output mechanism. The longitudinal receiving section includes multiple conveyor belts, a fixed frame, and a movable frame. Conveyor belt number 5 is mounted on the fixed frame, and conveyor belt number 7 is mounted on the movable frame. Conveyor belts number 6 and 18 are positioned directly above conveyor belts number 5 and 7. The movable frame is adjusted via a linear guide rail and a screw handwheel mounted on the fixed frame. Driving the screw to rotate moves the movable frame along the linear guide rail, thereby adjusting the distance between conveyor belts number 5 and 7 to accommodate fabrics of different widths. The longitudinal sewing section consists of... The system consists of two symmetrical sets of sewing units, each including a sewing module, a transition guide belt, a guide strip, and a care label section. The guide strip is installed between the transition guide belt and the sewing module to adjust and fix the edge position of the fabric. The care label section is located on one side of the longitudinal sewing section and includes a material gripping module composed of a moving cylinder and a suction cup, a care label storage conveyor belt group, and a care label feeding conveyor belt group. The material gripping module feeds the care label to the care label storage conveyor belt group, which clamps and conveys it to the care label feeding conveyor belt group. After being driven down an incline by a set of inclined pressure belts, the label meets the fabric and is then pressed together and sent to the sewing machine module for sewing, completing the care label operation.

2. The intelligent four-sided sewing machine for home textiles according to claim 1, characterized in that: The transverse sewing section includes a transverse cutting section, which is composed of a fabric feeding section, a transverse cutting section, a pressing and conveying section, a pressure rod section, and a fabric pulling section in sequence. The fabric feeding section controls the fabric to be centered using a centering device, a power roller drives the fabric conveying, and a hole detection sensor detects defective fabric. The transverse cutting section includes a cutter, which is mounted on a transverse cutting linear guide rail via a guide rail slider. The linear guide rail is mounted on the frame. A cutting servo motor is mounted at one end of the frame, with a driving synchronous pulley mounted on its shaft. A driven synchronous pulley is mounted at the other end of the frame, and the two synchronous pulleys are connected by a synchronous belt. The cutting servo motor drives the machine to rotate in both directions. This drives the cutter to cut the fabric longitudinally back and forth; the pressing and conveying part includes multiple sets of conveyor belts and pressure strip profiles. The conveyor belts move up and down to clamp the fabric and send it out, and the pressure strip profiles move up and down to clamp the fabric for easy cutting by the cutter; the lower pressure rod part consists of a winch shaft, a lower pressure rod servo motor, and a pressure rod. The lower pressure rod servo motor drives the winch shaft to rotate, causing the pressure rod to rise or fall. When the fabric pulling claw pulls the fabric backward, the pressure rod falls to press the fabric; the fabric pulling part includes multiple fabric pulling linear guide rails, a claw module, and a fabric pulling servo motor. The claw module is installed on the fabric pulling linear guide rails. The fabric pulling servo motor drives the claw module to move back and forth laterally. The claw module consists of a claw fixing upper plate, multiple claw cylinders, and a claw lowering plate. When a fabric pulling cylinder moves, it causes the claw module to engage. The claw lowering plate clamps the fabric with a serrated end shape, which matches and inserts into the serrated matrix of the fabric sheet metal.

3. The intelligent four-sided sewing machine for home textiles according to claim 1, characterized in that: The No. 6 and No. 8 conveyor belts are respectively installed in the same profile frame; both ends of the profile frame are equipped with boat-shaped sheet metal and driven shafts, and the longitudinal servo motor is installed above the profile frame with a drive shaft. The No. 6 and No. 8 conveyor belts can be driven to rotate in both directions, and spring pressure rollers are installed on the side for pressing the fabric.

4. The intelligent four-sided sewing machine for home textiles according to claim 1, characterized in that: The two symmetrical sewing units each include a left sewing module and a right sewing module. The left and right sewing modules are equipped with a left sewing machine and a right sewing machine, respectively. Each left and right sewing machine is driven by a longitudinal servo motor through a gear and rack transmission system to move its respective base plate. The corresponding base plate slides on the sewing guide rail through a sewing slider, thereby realizing the movement of the left and right sewing machines mounted on their respective base plates.

5. The intelligent four-sided sewing machine for home textiles according to claim 1 or 4, characterized in that: The two symmetrical sewing units include a left sewing module and a right sewing module. The left sewing module includes a longitudinal left-side lower synchronous belt assembly installed parallel to the base plate of the left sewing module. A longitudinal left-side upper synchronous belt assembly is provided above the longitudinal left-side lower synchronous belt assembly. An upper left movable sheet metal is on the crossbeam via a sheet metal slider and can move laterally with the longitudinal left-side upper synchronous belt assembly.

6. The intelligent four-sided sewing machine for home textiles according to claim 5, characterized in that: The vertical left-side sewing lower synchronous belt group and the vertical left-side sewing upper synchronous belt group are connected by two fixed linear guide sliders and a linear guide rail to ensure vertical alignment. A forward and reverse output gearbox is powered by a forward and reverse output servo motor, which outputs power to the vertical left-side sewing lower synchronous belt group and the vertical left-side sewing upper synchronous belt group through two universal joints. This causes the two belt groups to rotate in opposite directions at proportional speeds, clamping the fabric and conveying it backward. The vertical left pull cylinder is installed on the left sewing machine. When the pre-folded fabric is conveyed, the vertical left pull cylinder retracts, keeping the pre-folded edge parallel to the left sewing machine needle, ensuring that the sewn fabric edges are neat and uniform.

7. The intelligent four-sided sewing machine for home textiles according to claim 1, characterized in that: The longitudinal left and right guides forming the two symmetrical sewing units are also symmetrical in structure. The longitudinal left guide consists of a first longitudinal left guide and a second longitudinal left guide. The first longitudinal left guide includes a guide belt mounted on a one-piece molded guide sheet. The second longitudinal left guide is mounted on a dovetail groove to ensure that the upper surface of the first longitudinal left guide belt is in contact with the underside of a left pre-folded edge steel plate. The contact area with the pre-folded edge steel plate can be adjusted by a dovetail groove handwheel. When the folded edge width is widened, the second longitudinal left guide moves inward to increase the contact area and fully support the wider pre-folded edge. The second longitudinal left guide includes a second longitudinal left guide belt mounted on a second longitudinal left guide profile. This profile is fitted with an up-and-down adjustable sheet metal. A spring wheel, through the action of a tension spring, pushes the belt upward to press the fabric. A matrix sensor is installed next to the second longitudinal left guide belt.

8. The intelligent four-sided sewing machine for home textiles according to claim 7, characterized in that: The pre-folded steel plate includes a left folding main board, which is installed on a longitudinal lower left transition guide strip. A left edge adjustment plate is installed in the groove of the left folding main board and its lower plane is flush with the lower plane of the left folding main board, ensuring that the pre-folded fabric is clamped from the upper surface of the left guide strip without interference. A left U-shaped plate is installed below the left folding main board, and a left curling guide plate is installed obliquely on one side of the left U-shaped plate to facilitate the fabric entering the left U-shaped plate and being folded again in the left U-shaped plate to form a curling process.

9. The intelligent four-sided sewing machine for home textiles according to claim 1, characterized in that: The label storage conveyor belt assembly consists of a lower label storage conveyor belt and an upper label storage conveyor belt. The two belts rotate in both directions via gear meshing to achieve label transport. The label feeding conveyor belt assembly consists of an upper label feeding conveyor belt and a lower label feeding conveyor belt. The upper and lower label feeding conveyor belts are connected by several label feeding guide posts. Each of the several label feeding guide posts is equipped with a right spring, which clamps the contact surfaces of the upper and lower label feeding conveyor belts to ensure that the clamped labels do not slip and are conveyed backward.

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