Automatic bed sheet production line

Abstract

The invention discloses an automatic bed sheet production line, and belongs to the technical field of bed sheet production equipment. The bed sheet automatic production line comprises an X-direction edge folding and sewing mechanism for folding and sewing two side edges of a cloth block in the X direction, the X-direction edge folding and sewing mechanism comprises a first conveying assembly and an X-direction edge folding assembly, and the first conveying assembly comprises a conveying belt and a plurality of conveying rollers meshed with the conveying belt; the conveyor belt drives the double-side cloth to move on the bearing table of the bearing frame in the Y direction; the X-direction edge folding assembly comprises an X-direction edge folding driver, a conveying piece and a limiting rod. The limiting rod is arranged on one side, in the X direction, of the bearing table, so that when the double-edge cloth is conveyed in the Y direction, the edge, in the X direction, of the double-edge cloth is clamped between the limiting rod and the bearing table, and the edge is guided and bent to the bottom of the double-edge cloth through the limiting rod; the X-direction edge folding driver drives the conveying piece to move, the bent edges of the double-edge cloth are pushed to be folded, the stability and accuracy of the cloth in the edge folding process are guaranteed, and the edge folding quality of the cloth is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of bed sheet production equipment, and in particular to an automatic bed sheet production line. Background Art

[0002] The traditional process of sewing bed sheets is: manually measuring the length and cutting the fabric, and then folding and sewing the four sides of the fabric. The above process is labor-intensive, requires high proficiency of workers, and has low efficiency. In the related art, automated equipment is used to sew bed sheets, which includes a feeding mechanism, a Y-direction folding and sewing mechanism, a cutting mechanism, and an X-direction folding and sewing mechanism. The feeding mechanism conveys the fabric along the X direction, and the Y-direction folding and sewing mechanism folds and sews the two sides of the fabric in the Y direction to form a double-sided fabric. After the double-sided fabric moves a preset length along the X direction, the cutting mechanism cuts the double-sided fabric to form a cloth block, and finally the X-direction folding and sewing mechanism folds and sews the two sides of the fabric in the X direction to form a four-sided fabric. The whole process does not require manual participation and has high production efficiency. Since the fabric is relatively thin, it may be displaced during transportation, affecting the quality of the folding. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic production line for bed sheets, which ensures the stability and accuracy of the fabric during the folding process and guarantees the folding quality of the fabric.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An automatic bed sheet production line comprises a carrier frame, wherein a feeding mechanism, a Y-direction folding and sewing mechanism, a cutting mechanism and an X-direction folding and sewing mechanism are arranged on the carrier frame, wherein the feeding mechanism conveys the cloth along the X direction, the Y-direction folding and sewing mechanism folds and sews two side edges of the cloth in the Y direction to form a double-sided cloth, after the double-sided cloth moves a preset length along the X direction, the cutting mechanism cuts the double-sided cloth to form a cloth block, and the X-direction folding and sewing mechanism folds and sews two side edges of the cloth block in the X direction to form a four-sided cloth, wherein the X direction and the Y direction are both horizontal directions and perpendicular to each other;

[0006] The X-direction folding sewing mechanism includes a first conveying assembly and an X-direction folding assembly, wherein the first conveying assembly includes a conveyor belt and a plurality of conveyor rollers all meshed with the conveyor belt, wherein the conveyor belt drives the double-sided cloth to move along the Y direction on the bearing platform of the carrier frame; the X-direction folding assembly includes an X-direction folding driver, a conveying member and a limiting rod; the limiting rod is arranged on one side of the bearing platform along the X direction, so that when the double-sided cloth is conveyed along the Y direction, the edge of the double-sided cloth along the X direction is clamped between the limiting rod and the bearing platform, and the limiting rod guides the edge to be bent to the bottom of the double-sided cloth; the X-direction folding driver drives the conveying member to move, and pushes the bent edge of the double-sided cloth to fold. In some possible embodiments, the Y-direction folding sewing mechanism includes a pre-folding assembly and a Y-direction sewing assembly arranged in sequence along the X direction, wherein the pre-folding assembly is used to bend the side edge of the cloth in the Y direction to form a Y-direction folding; and the Y-direction sewing assembly is used to sew the Y-direction folding and the cloth to form a double-sided cloth.

[0007] In some possible embodiments, the pre-folding assembly includes a pre-folding table, two guide members, a roller and a platform, the two guide members are arranged on both sides of the pre-folding table along the Y direction, and a folding channel is formed between the guide members and the pre-folding table; the guide members are correspondingly provided with guide parts on both sides along the X direction, and the first guide part located at the input end of the pre-folding assembly includes an inclined surface inclined downward from the inner side to the outer side in the Y direction, so that the edges of the cloth on both sides along the Y direction are inclined outward and downward along the first guide part, and the cloth moves along the pre-folding table, and the inclined edges move along the folding channel to form a first fold; the second guide part located at the output end of the pre-folding assembly includes an inclined surface inclined downward from the outer side to the inner side in the Y direction, and the first fold is inclined inward and downward along the second guide part to form a second fold; the second fold and the cloth are stacked through the roller and the platform.

[0008] In some possible embodiments, the cutting mechanism includes a clamping and fixing component, a cutting knife component, a material grabbing and transporting component, and a second conveying component. The material grabbing and transporting component can dock with the Y-direction folding and sewing mechanism to grab the end of the double-sided cloth along the X direction and move a preset distance; the clamping and fixing component is located at the output end of the Y-direction folding and sewing mechanism, and is used to clamp the double-sided cloth; the cutting knife component is used to cut the double-sided cloth along the Y direction to form a cloth piece; the clamping and fixing component and the material grabbing and transporting component can release the cloth piece to make it fall to the second conveying component, and the second conveying component transports the cloth piece along the Y direction to dock with the X-direction folding and sewing mechanism.

[0009] In some possible embodiments, the cutting knife assembly includes a cutting knife frame, a cutting drive and a cutting knife. The cutting knife frame is slidably connected to the supporting frame along the Y direction. The cutting drive is arranged on the cutting knife frame, and its output end is connected to the cutting knife, and can drive the cutting knife to rotate around its own axis.

[0010] In some possible embodiments, the material grabbing and transporting assembly includes a material grabbing frame, a material grabbing driver, a first clamping plate and a second clamping plate. The material grabbing frame is slidably connected to the supporting frame along the X direction. The first clamping plate and the material grabbing driver are both arranged on the material grabbing frame. The material grabbing driver can drive the second clamping plate so that the double-sided cloth is clamped between the first clamping plate and the second clamping plate.

[0011] In some possible implementations, the second conveying component is a negative pressure conveying table, which is used to adsorb the double-sided cloth and can convey the double-sided cloth along the Y direction.

[0012] In some possible embodiments, the feeding mechanism includes a hopper, a first roller assembly, and a cache assembly arranged between the hopper and the first roller assembly, the first roller assembly drives the cloth to be transported from the hopper along the X direction; the cache assembly includes a swing frame, a cache table and a cache driver; the swing frame includes two guide rollers extending along the Y direction, and the cloth can be passed between the two guide rollers; the cache driver drives the swing frame to swing around a center line parallel to the Y direction, so that the cloth between the hopper and the first roller assembly is stacked on the cache table.

[0013] In some possible embodiments, the cache driver includes a cache motor, a rocker arm and a connecting rod. The output end of the cache motor is connected to the rocker arm, and can drive the rocker arm to rotate around a center line parallel to the Y direction. The two ends of the connecting rod are respectively hinged to the rocker arm and the swing frame.

[0014] In some possible embodiments, it also includes a pulley assembly, a material storage mechanism and a reverse counterweight mechanism located between the Y-direction folding and sewing mechanism and the cutting mechanism; the material storage mechanism includes a plurality of first material storage rollers and a plurality of second material storage rollers, and the cloth is alternately wound around the plurality of first material storage rollers and the plurality of second material storage rollers, and both ends of the plurality of second material storage rollers and the reverse counterweight mechanism along the Y direction are slidably connected to the carrier frame; the pulley assembly includes a fixed pulley rotatably connected to the carrier frame and a flexible cable wound around the fixed pulley, and both ends of the flexible cable are respectively connected to the plurality of second material storage rollers and the reverse counterweight mechanism.

[0015] In some possible embodiments, the feeding mechanism also includes a cloth connecting machine arranged between the hopper and the cache assembly, the cloth connecting machine includes a cloth connecting driver, a first cloth connecting member, a second cloth connecting member and a sewing machine, the second cloth connecting member is fixedly connected to the supporting frame, the cloth connecting driver can drive the first cloth connecting member to move toward the second cloth connecting member so that the cloth can be clamped between the first cloth connecting member and the second cloth connecting member, and the sewing machine is located downstream of the first cloth connecting member and the second cloth connecting member.

[0016] Beneficial effects of the present invention:

[0017] The present invention provides an automated bed sheet production line, wherein a conveying roller is meshedly connected to a conveyor belt, and the conveyor belt is configured to press a cloth piece against a carrier table. When the conveyor belt moves, it drives the cloth piece to move along the Y direction, so that the conveyor belt can smoothly and continuously convey the cloth piece. An X-direction folding driver is connected to a conveying member, and can drive the conveying member to move. When the cloth piece is conveyed along the Y direction, it can be clamped between a limiting rod and the carrier table, thereby ensuring the stability and accuracy of the cloth piece during the folding process, and avoiding the reduction in folding quality due to the displacement of the cloth piece. When the conveying member moves, it can push the edge of the cloth piece to fold toward one side of the cloth piece, thereby realizing the folding operation at both ends of the cloth piece along the X direction, and ensuring the folding quality of the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural schematic diagram of the bed sheet automated production line provided by an embodiment of the present invention;

[0019] Figure 2 is a front view of an automated bed sheet production line provided by an embodiment of the present invention;

[0020] Figure 3 is a top view of an automated bed sheet production line provided by an embodiment of the present invention;

[0021] Figure 4 It is a first isometric view of a hopper and a fabric receiving machine provided in an embodiment of the present invention;

[0022] Figure 5 is a second isometric view of a hopper and a fabric receiving machine provided in an embodiment of the present invention;

[0023] Figure 6 is a front view of a first roller assembly and a buffer assembly provided by an embodiment of the present invention;

[0024] Figure 7 is a first isometric view of a partial structure of a feeding mechanism provided by an embodiment of the present invention;

[0025] Figure 8 is a second isometric view of a partial structure of a feeding mechanism provided by an embodiment of the present invention;

[0026] Fig. 9 is an axonometric diagram of a Y-direction hemming sewing mechanism provided by an embodiment of the present invention;

[0027] Fig.10 yes Fig. 9 A partial enlarged view of the middle A;

[0028] Fig.11 It is a front view of a Y-direction hemming sewing mechanism and a material storage mechanism provided by an embodiment of the present invention;

[0029] Fig.12 It is a top view of the Y-direction hemming sewing mechanism and the material storage mechanism provided by an embodiment of the present invention;

[0030] Fig.13 yes Fig.12 A partial enlarged view of point B in the middle;

[0031] Fig.14 is an axonometric diagram of a secondary hemming assembly provided by an embodiment of the present invention;

[0032] Fig.15 yes Fig.14 A partial enlarged view of point C in the middle;

[0033] Fig.16 is a schematic diagram of a secondary hemming assembly provided by an embodiment of the present invention;

[0034] Fig.17 is an axonometric diagram of a cutting mechanism provided by an embodiment of the present invention;

[0035] Fig.18 yes Fig.17 A partial enlarged view of point D in the middle;

[0036] Fig.19 yes Fig.17 A partial enlarged view of point E in the middle;

[0037] Fig. 20 is an axonometric diagram of an X-direction hemming sewing mechanism and a frame assembly provided by an embodiment of the present invention;

[0038] Fig.21 yes Fig. 20 A partial enlarged view of point F in the middle;

[0039] Fig. 22 is a top view of a frame assembly and a discharge conveyor belt provided in an embodiment of the present invention;

[0040] Fig.23 yes Fig. 22 A partial enlarged view of the G in the middle;

[0041] Fig.24 It is an axonometric diagram of a material storage mechanism and a reverse counterweight mechanism provided in an embodiment of the present invention;

[0042] Fig.25 It is a front view of the material storage mechanism provided in an embodiment of the present invention.

[0043] In the figure:

[0044] 1. Carrying frame;

[0045] 2. Feeding mechanism; 21. Hopper; 211. Limiting plate; 212. Material roller; 22. First roller assembly; 221. First roller driver; 222. First material pulling roller; 223. Second material pulling roller; 224. Speed ​​regulating sensor; 225. Speed ​​regulating driver; 226. Speed ​​regulating frame; 2261. Buffer; 23. Fabric receiving machine; 231. Fabric receiving driver; 232. First fabric receiving member; 233. Second fabric receiving member; 24. Cache assembly; 241. Swing frame; 2411. Guide roller; 242. Cache driver; 2421. Cache motor; 2422. Rocker lever; 2423. Connecting rod; 25. Correction assembly; 251. Fixed plate; 252. Fixed column;

[0046] 3. Y-direction folding sewing mechanism; 31. pre-folding assembly; 311. pre-folding table; 312. guide member; 3121. guide part; 313. folding channel; 32. Y-direction sewing assembly; 33. secondary folding assembly; 331. secondary folding plate; 3311. secondary folding groove; 332. partition plate; 3321. bearing part; 34. second roller assembly; 341. second roller driver; 342. third drawing roller; 343. fourth drawing roller;

[0047] 4. Cutting mechanism; 41. Cutting knife assembly; 411. Cutting knife frame; 412. Cutting drive; 413. Cutting knife; 42. Grabbing material transport assembly; 421. Grabbing material frame; 422. Grabbing material drive; 423. First clamping plate; 424. Second clamping plate; 43. Second transport assembly;

[0048] 5. X-direction folding and sewing mechanism; 51. X-direction folding assembly; 511. X-direction folding driver; 512. conveying member; 513. limiting rod; 52. X-direction sewing assembly; 53. first conveying assembly; 531. conveying roller;

[0049] 6. Material storage mechanism; 61. First material storage roller; 62. Material storage lifting assembly; 621. Lifting plate; 622. Second material storage roller;

[0050] 7. Reverse counterweight mechanism; 71. Counterweight member; 72. Flexible rope; 73. Fixed pulley;

[0051] 8. Frame assembly; 81. Left frame; 811. Loading platform; 82. Right frame;

[0052] 9. Discharging conveyor belt;

[0053] 10. Trimming components. DETAILED DESCRIPTION

[0054] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0055] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] like Figure 1-Figure 25As shown, this embodiment provides an automated bed sheet production line, including a carrier 1, on which a feeding mechanism 2, a Y-direction folding and sewing mechanism 3, a cutting mechanism 4, and an X-direction folding and sewing mechanism 5 are provided. The feeding mechanism 2 transports the fabric along the X direction, the Y-direction folding and sewing mechanism 3 folds and sews the two sides of the fabric in the Y direction to form a double-sided fabric, and after the double-sided fabric moves a preset length along the X direction, the cutting mechanism 4 cuts the double-sided fabric to form a fabric block, and the X-direction folding and sewing mechanism 5 folds and sews the two sides of the fabric block in the X direction to form a four-sided fabric. The X direction and the Y direction are both horizontal and perpendicular to each other. For the convenience of description, in this solution, the X direction is taken as the front-to-back direction and the Y direction is taken as the left-to-right direction for exemplary description. Through the above structure, the automatic cutting, folding and sewing of the four sides of the bed sheet are realized, and the automated production is realized, without the need for manual participation and the production efficiency is improved.

[0058] Specifically, Figure 1-Figure 5 As shown, the feeding mechanism 2 includes a hopper 21, a cloth receiving machine 23, a buffer assembly 24 and a first roller assembly 22 arranged in sequence along the X direction. The first roller assembly 22 drives the cloth from the hopper 21 along the X direction to the Y direction folding and sewing mechanism 3.

[0059] The hopper 21 includes a limit plate 211 and a plurality of material rollers 212 rotatably connected to the carrier frame 1. The plurality of material rollers 212 are all arranged along the Y direction, parallel to each other, and arranged at intervals. The limit plate 211 is slidably connected to the carrier frame 1 along the Y direction, and is surrounded by the plurality of material rollers 212 to form a storage space, and the storage space is used to store the cloth rolls to be processed (formed by winding cloth). Moreover, the operator can adjust the position of the limit plate 211 by sliding, so that the hopper 21 can adapt to cloth rolls of different widths, thereby improving the versatility and flexibility of the bed sheet automated production line. By rotatably setting the plurality of material rollers 212 on the carrier frame 1, the friction resistance between the cloth roll and the hopper 21 is reduced, so that the cloth roll can be transported more smoothly, avoiding problems such as jamming or tearing of the cloth roll that may occur during the transportation process.

[0060] The feeding mechanism 2 further includes a cloth receiving machine 23 disposed between the hopper 21 and the buffer assembly 24. The cloth receiving machine 23 includes a cloth receiving driver 231, a first cloth receiving member 232, a second cloth receiving member 233 and a sewing machine. The second cloth receiving member 233 is fixedly connected to the carrier 1. The cloth receiving driver 231 can drive the first cloth receiving member 232 to move toward the second cloth receiving member 233, so that the cloth can be clamped between the first cloth receiving member 232 and the second cloth receiving member 233. The sewing machine is located downstream of the first cloth receiving member 232 and the second cloth receiving member 233. When the cloth is transported to the designated position, the cloth receiving driver 231 drives the first cloth receiving member 232 to move toward the second cloth receiving member 233. With the movement of the first cloth receiving member 232, the cloth is clamped between the first cloth receiving member 232 and the second cloth receiving member 233. The cloth can be stopped when necessary and continue to move forward, so that the operator can connect the new cloth in the hopper 21 with the original cloth through the sewing machine. The two rolls of cloth are connected head to tail to ensure the continuity of bed sheet production. The cloth receiving driver 231 is a pneumatic cylinder or a hydraulic cylinder, and the first cloth receiving member 232 and the second cloth receiving member 233 are cloth receiving rods or cloth receiving plates. No limitation is made to the above components as long as they can achieve the above functions.

[0061] like Figure 6-Figure 8 As shown, the cache assembly 24 includes a swing frame 241, a cache table and a cache driver 242; the swing frame 241 includes two guide rollers 2411 extending along the Y direction, and the cloth can be passed between the two guide rollers 2411; the cache driver 242 drives the swing frame 241 to swing around a center line parallel to the Y direction, and the cloth between the cloth receiving machine 23 and the first roller assembly 22 is stacked on the cache table.

[0062] Specifically, a guide roller 2411 is rotatably provided on the swing frame 241, and the guide roller 2411 is configured to wind the cloth so that the cloth can maintain a certain tension and direction during the conveying process. When the cloth is conveyed along the X direction, the cache driver 242 can drive the swing frame 241 to swing, so that the cloth is stacked on the cache table of the carrier frame 1. Through the rotation of the swing frame 241, the cloth wound on the guide roller 2411 is gradually unfolded and stacked on the cache table, which is conducive to saving space. Moreover, when the cloth feeding is suspended due to the connection of the cloth, the cache component 24 can be set to ensure that the automatic production line of the bed sheet does not stop, thereby improving production efficiency. Optionally, the cache table is a conveying mechanism that can drive the cloth to move in the X direction.

[0063] The cache driver 242 includes a cache motor 2421, a rocker arm 2422 and a connecting rod 2423. The output end of the cache motor 2421 is connected to the rocker arm 2422, and can drive the rocker arm 2422 to rotate around the center line parallel to the Y direction. The two ends of the connecting rod 2423 are respectively hinged to the rocker arm 2422 and the swing frame 241. When the cache motor 2421 is started, the output shaft of the cache motor 2421 drives the rocker arm 2422 to rotate around its rotation axis. The rotation of the rocker arm 2422 is transmitted to the swing frame 241 through the connecting rod 2423, so that the swing frame 241 swings around the center line of the Y direction. With the swing of the swing frame 241, the cloth wound around the guide roller 2411 is gradually unfolded and stacked on the cache station of the carrier frame 1. The swing angle and speed of the swing frame 241 are accurately controlled by the cache motor 2421, thereby ensuring the accurate stacking of the cloth. The cache motor 2421 is a stepper motor or a servo motor, which is not limited here.

[0064] The first roller assembly 22 includes a first roller driver 221, a first material drawing roller 222 and a second material drawing roller 223. The output end of the first roller driver 221 is connected to the first material drawing roller 222, and can drive the first material drawing roller 222 to rotate around the Y direction. The second material drawing roller 223 is rotatably arranged on the carrier 1, and is extended along the Y direction together with the first material drawing roller 222. The cloth is clamped between the first material drawing roller 222 and the second material drawing roller 223. When the first roller driver 221 is started, its output end drives the first material drawing roller 222 to rotate around the Y direction. Since the cloth is clamped between the first material drawing roller 222 and the second material drawing roller 223, as the first material drawing roller 222 rotates, the cloth will be gradually pulled, and the second material drawing roller 223 will also rotate accordingly under the friction force of the cloth, ensuring the smooth transportation of the cloth along the X direction, and realizing automatic feeding of the cloth. The first roller driver 221 uses a stepper motor or a servo motor as long as it can achieve the above functions. The specific structure of the first roller driver 221 is not limited too much here.

[0065] More specifically, if Figure 6-Figure 8As shown, the first roller assembly 22 further includes a speed sensor 224, a speed driver 225 and a speed frame 226. The speed frame 226 is rotatably arranged on the carrier 1 around the Y direction, and is rotatably provided with a buffer portion 2261 for winding the cloth. The output end of the speed sensor 224 is communicatively connected to the speed driver 225. When the speed sensor 224 receives an indication signal, it can drive the speed driver 225 to act. When the speed driver 225 acts, it can drive the speed frame 226 to rotate. During the cloth conveying process, the speed sensor 224 monitors the current position of the speed frame 226 in real time. When the current position of the speed frame 226 deviates from the preset range, the speed sensor 224 will send an indication signal to the speed driver 225. After receiving the signal, the speed driver 225 will drive the speed frame 226 to rotate around the Y direction, thereby adjusting the winding state of the cloth on the buffer portion 2261, thereby realizing accurate control of the cloth conveying speed.

[0066] More specifically, in this embodiment, the speed driver 225 is a stepper motor, and the output shaft of the stepper motor is connected to the speed frame 226, which can drive the speed frame 226 to rotate around the Y direction. Moreover, the buffer portion 2261 is a cylindrical roller, which is used to provide additional support and buffering during the cloth conveying process. In addition, a plurality of speed sensors 224 are provided, and the plurality of speed sensors 224 are arranged on the carrier frame 1 at intervals in the vertical direction, and the receiving ends of the speed sensors 224 are all arranged toward the same side, so as to monitor the current position of the speed frame 226. In other embodiments, the speed driver 225 is a servo motor, and the specific structure of the speed driver 225 is not limited too much here, as long as the above-mentioned functions can be achieved.

[0067] Specifically, Figure 6-Figure 8 As shown, the feeding mechanism 2 also includes a deviation correction component 25, which is arranged at both ends of the carrier 1 along the Y direction, including a fixed plate 251 and two fixed columns 252 spaced apart from the fixed plate 251. The two fixed columns 252 are both extended along the Y direction and are surrounded by the fixed plate 251 to form a deviation correction space for accommodating the cloth. During the cloth conveying process, when the cloth deviates, the edge of the cloth will contact the fixed column 252 on one side of the deviation correction space. Due to the rigid support of the fixed column 252, the cloth will be subjected to a force in the opposite direction, thereby being guided back to the predetermined conveying path. By correcting the deviation of the two ends of the cloth by the deviation correction component 25, the stability and accuracy of the cloth during the conveying process can be ensured, and the cloth will not deviate along the Y direction.

[0068] The Y-direction folding and sewing mechanism 3 includes a pre-folding component 31 and a Y-direction sewing component 32 which are sequentially arranged along the X direction. When the cloth is conveyed along the X direction, the pre-folding component 31 is used to bend the side edge in the Y direction to form a Y-direction fold, for example, bending it to be stacked with the cloth; the Y-direction sewing component 32 is used to sew the Y-direction fold and the cloth to form a double-sided cloth.

[0069] like Figure 9-13 As shown, the pre-folding component 31 includes a pre-folding table 311, two guide members 312, a roller and a platform. The two guide members 312 are arranged on both sides of the pre-folding table 311 along the Y direction, and a folding channel 313 is formed between the guide members 312 and the pre-folding table 311; guide parts 3121 are correspondingly provided on both sides of the guide member 312 along the X direction, and the first guide part 3121 located at the input end of the pre-folding component 31 includes an inclined surface inclined downward from the inner side to the outer side in the Y direction, so that the edges of the cloth on both sides along the Y direction are inclined toward the outer side and downward along the first guide part 3121, and the cloth moves along the pre-folding table 311, and the inclined edges move along the folding channel 313 to form a first fold; the second guide part 3121 located at the output end of the pre-folding component 31 includes an inclined surface inclined downward from the outer side to the inner side in the Y direction, and the first fold is inclined toward the inner side and downward along the second guide part 3121 to form a second fold; the second fold and the cloth are stacked through the roller and the platform. During the conveying process, the edge of the cloth passes through the first guide part 3121, the folding channel 313 and the second guide part 3121, and between the roller and the platform in sequence, so that the cloth is folded at both ends of the Y direction to form a Y-direction fold. Through the above arrangement, the cloth can be uniformly guided and supported during the conveying process, thereby ensuring the neatness and consistency of the folding, thereby providing a good foundation for the subsequent sewing or cutting process. The guide part 3121 is a guide plate with an inclined surface, and the guide plate is welded or screwed to the end of the guide member 312 along the X direction. The two guide parts 3121 on both sides of the pre-folding platform 311 along the Y direction have opposite inclination directions of their inclined surfaces.

[0070] like Figure 14-16As shown, the Y-direction folding and sewing mechanism 3 also includes a secondary folding assembly 33, which is arranged between the pre-folding assembly 31 and the Y-direction sewing assembly 32. The secondary folding assembly 33 includes a secondary folding plate 331 and a partition plate 332. The two ends of the secondary folding plate 331 along the Y direction are respectively bent to form secondary folding grooves 3311, so as to facilitate secondary folding of the Y-direction folding at both ends of the cloth, thereby ensuring the accuracy and consistency of the folding. The partition plate 332 extends into the secondary folding groove 3311, and the extending direction of the partition plate 332 is set at an angle with the extending direction of the secondary folding groove 3311, which helps the cloth to be effectively guided during the conveying process and ensures the accuracy of the folding position. One end of the cloth is placed on the bearing portion 3321 of the partition plate 332. When the cloth is conveyed against the outer wall of the secondary folding groove 3311, the bearing portion 3321 pushes the end of the cloth into the secondary folding groove 3311. This arrangement enables the secondary folding assembly 33 to fold the Y-direction fold, thereby reducing manual operation, improving production efficiency and automation, helping to reduce production costs, improve product quality, and meet the needs of large-scale production.

[0071] Specifically, Figure 9-11 As shown, the Y-direction hemming sewing mechanism 3 also includes a second roller assembly 34, which includes a second roller driver 341, a third material pulling roller 342 and a fourth material pulling roller 343. The second roller driver 341 can drive the third material pulling roller 342 to rotate around its own axis, ensuring that the cloth can smoothly and continuously bypass the third material pulling roller 342, realizing the conveyance of the double-sided cloth in the Y-direction hemming sewing mechanism 3, and providing a stable cloth input for subsequent operation procedures. The third material pulling roller 342 and the fourth material pulling roller 343 both extend in the Y direction and are arranged at intervals in the X direction. The cloth is sequentially wound around the third material pulling roller 342 and the fourth material pulling roller 343, ensuring that the cloth can maintain a certain tension and stability during the conveying process. The above arrangement realizes the precise conveying of the cloth.

[0072] The bed sheet automatic production line also includes a pulley assembly, a material storage mechanism 6 and a reverse weighting mechanism 7 located between the Y-direction folding and sewing mechanism 3 and the cutting mechanism 4; the material storage mechanism 6 includes a plurality of first material storage rollers 61 and a plurality of second material storage rollers 622, and the fabric is alternately wound around the plurality of first material storage rollers 61 and the plurality of second material storage rollers 622, and both ends of the plurality of second material storage rollers 622 and the reverse weighting mechanism 7 along the Y direction are slidably connected to the carrier frame 1; the pulley assembly includes a fixed pulley 73 rotatably connected to the carrier frame 1 and a flexible rope 72 wound around the fixed pulley 73, and both ends of the flexible rope 72 are respectively connected to the plurality of second material storage rollers 622 and the reverse weighting mechanism 7. Figure 1 , Fig.11 , Fig.24 and Fig.25As shown, the storage mechanism 6 provides the function of temporary storage and buffering of fabrics for the bed sheet automatic production line, which helps to achieve the continuity and stability of the production process. The storage mechanism 6 includes a storage lifting assembly 62 and a plurality of first storage rollers 61, and the plurality of first storage rollers 61 are rotatably arranged on the carrier 1 at intervals along the X direction, so that the fabric can smoothly pass around each first storage roller 61, avoiding wrinkles and deviations of the fabric, and ensuring the smooth progress of subsequent processes. The material storage lifting assembly 62 includes two lifting plates 621 and a plurality of second material storage rollers 622. The lifting plates 621 are slidably connected to the carrier frame 1 along the Z direction. The plurality of second material storage rollers 622 are rotatably arranged between the two lifting plates 621 along the X direction. The second material storage rollers 622 are driven to move along the Z direction by the lifting plates 621. The cloth is alternately wound around the first material storage roller 61 and the second material storage roller 622. As the second material storage roller 622 moves along the Z direction, the storage mechanism 6 can realize temporary storage of the cloth, so that the bed sheet automated production line has greater flexibility and adaptability during the production process.

[0073] It should be noted that in this embodiment, the Z direction is the vertical direction in order to improve the compactness of the structure of the bed sheet automatic production line. In other embodiments, the Z direction may be set at an angle to the vertical direction, that is, as long as the above-mentioned functions can be achieved, the specific setting of the Z direction is not limited too much.

[0074] Specifically, Figure 1 and Fig.24 As shown, the reverse counterweight mechanism 7 includes a counterweight member 71. More specifically, the counterweight member 71 is a counterweight plate, which is slidably connected to the carrier frame 1 along the Z direction to ensure the lifting and lowering guidance of the counterweight plate.

[0075] The flexible rope 72 of the pulley assembly is connected to the counterweight 71 at one end and to the lifting plate 621 at the other end. The connection between the counterweight 71 and the lifting plate 621 provides the necessary balancing torque for the lifting plate 621 during the lifting process. This helps to reduce the shaking and instability of the lifting plate 621 during the lifting process, making the lifting action more stable and reliable.

[0076] The flexible rope 72 is a belt, which is wound around the fixed pulley 73, one end of the belt is connected to the counterweight plate, and the other end is connected to the lifting plate 621. Through the coordinated work of the counterweight plate, the belt and the fixed pulley 73, the stability and reliability of the storage lifting assembly 62 during the lifting process are achieved. In other embodiments, the counterweight 71 is a counterweight block, and the flexible rope 72 is a rope, that is, as long as the above functions can be achieved, the specific structure of the above components is not limited too much.

[0077] The cutting mechanism 4 includes a clamping and fixing component, a cutting component 41, a material grabbing and transporting component 42, and a second conveying component 43. The material grabbing and transporting component 42 can dock with the Y-direction folding and sewing mechanism 3 to grab the end of the double-sided cloth along the X direction and move a preset distance; the clamping and fixing component is located at the output end of the Y-direction folding and sewing mechanism 3, and is used to clamp the double-sided cloth; the cutting component 41 is used to cut the double-sided cloth along the Y direction to form a cloth block; the material grabbing and transporting component 42 can release the cloth block to make it fall to the second conveying component 43, and the second conveying component 43 transports the cloth block along the Y direction to dock with the X-direction folding and sewing mechanism 5. Specifically, the material grabbing and transporting component 42 grabs the head end of the double-sided cloth along the X direction and moves a preset distance, then the clamping and fixing component clamps the tail end of the double-sided cloth along the X direction to fix the double-sided cloth, and the cutting component 41 cuts the fixed double-sided cloth. After cutting, the material grabbing and transporting component 42 and the clamping and fixing component both release the double-sided cloth to complete the cutting.

[0078] like Fig.17 and Fig.18 As shown, the cutting assembly 41 includes a cutting frame 411, a cutting driver 412 and a cutting knife 413. The cutting frame 411 is connected to the carrier frame 1 by sliding along the Y direction. The cutting driver 412 is arranged on the cutting frame 411, and its output end is connected to the cutting knife 413, and can drive the cutting knife 413 to rotate around its own axis, so that the cutting knife 413 can move freely within the entire width of the bed sheet, and achieve accurate cutting positioning. First, the cutting frame 411 slides along the Y direction on the carrier frame 1 to position the cutting knife 413 to be cut, and then the cutting driver 412 is started, thereby driving the cutting knife 413 to rotate around its own axis at high speed. As the cutting frame 411 moves, the cutting knife 413 is driven to achieve the cutting work of the bed sheet. The cutting blade frame 411 can slide along the Y direction through a cylinder, a hydraulic cylinder or a belt drive, and the cutting driver 412 can use a stepping motor or a belt drive to realize the rotation of the cutting blade 413 around its own axis. No further restrictions are made on the above components.

[0079] like Figure 17-Figure 19As shown, the material grabbing and transporting assembly 42 includes a material grabbing frame 421, a material grabbing driver 422, a first clamping plate 423 and a second clamping plate 424. The material grabbing frame 421 is slidably connected to the carrier frame 1 along the X direction, so that the material grabbing and transporting assembly 42 can move freely in the X direction, thereby grabbing the cloth to facilitate subsequent cutting, and can drag the cloth to achieve transportation. The first clamping plate 423 and the material grabbing driver 422 are both arranged on the material grabbing frame 421. The material grabbing driver 422 can drive the second clamping plate 424 to clamp the double-sided cloth between the first clamping plate 423 and the second clamping plate 424. The first clamping plate 423 is against one side of the double-sided cloth, and the material grabbing driver 422 can drive the second clamping plate 424 to move toward the first clamping plate 423, so that the double-sided cloth can be clamped between the first clamping plate 423 and the second clamping plate 424. This clamping method is not only stable and reliable, but also can adapt to double-sided cloths of different thicknesses and materials, ensuring that the double-sided cloth will not slip or deform during transportation. The material grabbing driver 422 is a structure such as a cylinder, a hydraulic cylinder or a belt transmission, and the specific structure of the material grabbing driver 422 is not limited too much here.

[0080] Exemplarily, the clamping and fixing assembly includes a front upper pressing plate and a front lower pressing plate. During the conveying process of the double-sided cloth, the front lower pressing plate passes through the front lower pressing plate, and a driving member such as a cylinder drives the front upper pressing plate to close toward the front lower pressing plate, thereby clamping the double-sided cloth.

[0081] The second conveying component 43 is a negative pressure conveying table, which is used to adsorb the double-sided cloth and can realize the conveyance of the double-sided cloth along the Y direction. Optionally, the negative pressure conveying table includes a table, a negative pressure component and a conveyor belt. The table is provided with a accommodating space, and the upper surface is provided with a plurality of negative pressure holes connected to the accommodating space. The negative pressure component is used to evacuate the accommodating space. The conveyor belt is provided with a plurality of through holes. During the movement of the conveyor belt, at least some of the through holes can be connected to the negative pressure holes. The negative pressure component includes a vacuum pump and a connecting pipe. The connecting pipe connects the vacuum pump and the table. The vacuum pump evacuates the accommodating space to realize the negative pressure holes of the table to adsorb the double-sided cloth. The conveyor belt is used to convey the double-sided cloth in the Y direction. The conveyor belt is in direct contact with the double-sided cloth. Therefore, the conveyor belt is provided with a plurality of through holes. During the movement of the conveyor belt, at least some of the through holes can be connected to the negative pressure holes to realize the adsorption of the double-sided cloth.

[0082] The X-direction folding sewing mechanism 5 includes a first conveying assembly 53 and an X-direction folding assembly 51. The first conveying assembly 53 includes a conveyor belt and a plurality of conveyor rollers 531 meshed with the conveyor belt. The conveyor belt drives the double-sided cloth to move along the Y direction on the bearing platform 811 of the bearing frame 1; the X-direction folding assembly 51 includes an X-direction folding driver 511, a conveying member 512 and a limiting rod 513; the limiting rod 513 is arranged on one side of the bearing platform 811 along the X direction, so that when the double-sided cloth is conveyed along the Y direction, the edge of the double-sided cloth along the X direction is clamped between the limiting rod 513 and the bearing platform 811, and the edge is guided to be bent to the bottom of the double-sided cloth by the limiting rod 513; the X-direction folding driver 511 drives the conveying member 512 to move, and pushes the bent edge of the double-sided cloth to fold.

[0083] like Figure 1 , Figure 3 , Fig. 20 and Fig. 22 As shown, the bed sheet automated production line also includes a frame assembly 8, and the X-direction folding and sewing mechanism 5 is arranged on the frame assembly 8. The frame assembly 8 includes a left frame 81 and a right frame 82. The left frame 81 is fixedly connected to the carrier frame 1, and the right frame 82 is slidably connected to the carrier frame 1 along the Y direction, so that the bed sheet automated production line can adapt to the cutting and sewing needs of sheets of different sizes, thereby improving flexibility. In other embodiments, the left frame 81 is slidably connected to the carrier frame 1 along the Y direction, and the right frame 82 is fixedly connected to the carrier frame 1. Alternatively, both the left frame 81 and the right frame 82 are slidably connected to the carrier frame 1 along the Y direction, so as to adjust the spacing between the left frame 81 and the right frame 82, thereby adapting to the folding and sewing operations of double-sided fabrics of different widths. It can be understood that there is no excessive limitation on the specific connection relationship of the above-mentioned components, as long as the above-mentioned functions can be achieved.

[0084] The left frame 81 and the right frame 82 both include a supporting platform 811, and the conveying roller 531 is rotatably set on the left frame 81 and the right frame 82, and is meshed and connected to the conveyor belt. The conveyor belt is configured to press the cloth against the supporting platform 811. When the conveyor belt moves, it drives the cloth to move along the Y direction, so that the conveyor belt can transport the cloth smoothly and continuously, thereby improving production efficiency and shortening the production cycle.

[0085] like Figure 20-23As shown, the X-direction folding driver 511 is connected to the conveying member 512, and can drive the conveying member 512 to move. When the cloth is transported along the Y direction, it can be clamped between the limit rod 513 and the carrier 811, ensuring the stability and accuracy of the cloth during the folding process, and avoiding the reduction of the folding quality due to the displacement of the cloth position. The extension direction of the conveying member 512 is set at an angle to the extension direction of the limit rod 513. When the conveying member 512 moves, it can push the edge of the cloth to fold toward one side of the cloth, thereby realizing the folding operation of the cloth at both ends along the X direction.

[0086] In this embodiment, the X-direction folding driver 511 is a servo motor, the transmission member 512 is a belt, the output end of the transmission motor is connected to the belt, and can drive the belt transmission, and the transmission direction of the belt is set at an angle to the extension direction of the limit rod 513, so that the belt can push the edge of the cloth piece toward one side of the cloth piece when moving, which not only makes the overall structure relatively simple, easy to install and maintain, but also ensures the stability and accuracy of the cloth piece during the folding process. In other embodiments, the X-direction folding driver 511 is a stepping motor, and the transmission member 512 is a leather strip. The specific structure of the above components is not limited too much here, as long as the above functions can be achieved.

[0087] Specifically, Figure 1 , Figure 3 and Fig. 22 As shown, the bed sheet automated production line also includes a discharge conveyor belt 9, which is arranged between the left frame 81 and the right frame 82 to connect the processes of cutting, folding and sewing of the fabric. The discharge conveyor belt 9 can transport the processed bed sheets out, thereby improving production efficiency, shortening the production cycle, and avoiding the tedious manual handling.

[0088] The X-direction folding and sewing mechanism 5 also includes a material pressing electric steel, and a material pressing plate is provided at the output end of the material pressing electric steel. When the material grabbing and transporting component 42 completes the grabbing and dragging operation of the double-sided cloth, the material pressing plate is driven to move by the material pressing electric steel to press on the double-sided cloth, so that the double-sided cloth is fixed at the cutting position, thereby improving the cutting effect of the double-sided cloth.

[0089] Specifically, Figure 6 As shown, the bed sheet automated production line also includes a trimming assembly 10, which is used to cut the rough edges before the hemming and sewing of the fabric, thereby ensuring the quality of the bed sheet products. The trimming assembly 10 includes a cutter driver and a cutting knife. When the fabric is conveyed, the cutter driver can drive the cutting knife to reciprocate, and the cutting knife is configured to cut the rough edges of the fabric. Through the above arrangement, the loose fibers and irregular parts on the edge of the fabric can be effectively removed, thereby ensuring that the edges of the bed sheet products are flat and smooth, and improving the product quality. Among them, the cutter driver uses a stepper motor or a rotary cylinder, and the specific structure of the cutter driver is not limited too much here.

[0090] It should be noted that the Y-direction sewing assembly 32 and the X-direction sewing assembly 52 use a sewing machine or a quilting machine to achieve the sewing operation of the cloth. Moreover, those skilled in the art are aware of the specific structure and working principle of the above-mentioned equipment, which will not be repeated here.

[0091] The following is an explanation of the specific working process of the bed sheet automatic production line:

[0092] First, a cloth roll is placed in the hopper 21. After the cloth roll is unfolded, the cloth passes between the first cloth receiving piece 232 and the second cloth receiving piece 233, and is transported along the X direction under the action of the first roller assembly 22. The cloth wound on the guide roller 2411 is gradually unfolded and stacked on the buffer table through the rotation of the swing frame 241. Then, the speed control driver 225 receives the indication signal of the speed control sensor 224, and promptly drives the speed control frame 226 to rotate around the Y direction to adjust the winding state of the cloth on the buffer part 2261. Then, the two ends of the cloth are corrected by the correction assembly 25, and the rough edges of the double-sided cloth at both ends along the Y direction are cut by the trimming assembly 10.

[0093] When the cloth is conveyed to the pre-folding table 311, the cloth is conveyed on the pre-folding table 311 along the X direction under the action of the second roller assembly 34. During the conveying process, the edge of the cloth first contacts the first guide portion 3121 located at the entrance of the folding channel 313, and extends into the folding channel 313 under the guidance of the guide portion 3121. As the cloth continues to be conveyed, the edge of the cloth contacts the second guide portion 3121 located at the exit of the folding channel 313, so that the cloth is folded at both ends of the Y direction to form a Y-direction fold. After the Y-direction folding of the cloth is achieved, the Y-direction folding is sewn by the Y-direction sewing assembly 32.

[0094] After the Y-direction folding of the cloth is sewn to form a double-sided cloth, the double-sided cloth will be transported to the storage mechanism 6 for temporary storage, and the double-sided cloth will be grabbed by the material grabbing and transporting assembly 42. The cutting knife assembly 41 can cut the double-sided cloth along the Y direction to form a cloth block. The material grabbing and transporting assembly 42 can transport the cloth block to the second conveying assembly 43, and the cloth block is transported along the Y direction through the second conveying assembly 43.

[0095] During the conveying process of the cloth, the burrs at both ends of the double-sided cloth along the X direction are cut by the trimming assembly 10. The X-direction folding driver 511 drives the conveying member 512 to move, so that the cloth is clamped between the limit rod 513 and the end of the carrier 811. When the conveying member 512 moves, it pushes the edge of the cloth to fold toward one side of the cloth, thereby realizing the folding of both ends of the cloth along the X direction to form an X-direction folding, and then the X-direction sewing assembly 52 sews the X-direction folding to form a four-sided cloth, which is finally transported to the finished product station via the outfeed conveyor 9.

[0096] The hopper 21 is used to store the cloth to be processed. The first roller assembly 22 can drive the cloth to be transported along the X direction, realizing automatic feeding of the cloth. When the cloth is transported along the X-axis direction, the two ends of the cloth along the Y-axis direction are folded by the pre-folding assembly 31 to form a longitudinal fold, and then the longitudinal fold is sewed by the Y-direction sewing assembly 32 to form a double-sided cloth. The fixed-length cutting knife assembly 41 can cut the double-sided cloth along the Y direction to form a cloth block, thereby reducing manual cutting and improving the cutting accuracy of the bed sheet. The material grabbing and transporting assembly 42 can transport the cloth block to the second conveying assembly 43, and then the cloth block is transported along the Y direction by the second conveying assembly 43, so that the conveying direction of the cloth block is changed, so that the other two ends of the cloth block can be folded and sewn. The X-direction folding and sewing mechanism 5 comprises an X-direction folding assembly 51 and an X-direction sewing assembly 52. ​​The X-direction folding assembly 51 can fold the two ends of the cloth piece along the X direction to form an X-direction folding, and then sew the X-direction folding to form a four-side cloth by the X-direction sewing assembly 52. ​​Through the above production process, the automatic cutting, four-side folding and sewing of the bed sheet are realized, and the product quality and operation efficiency are improved.

[0097] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An automated bed sheet production line, characterized in that: The invention comprises a carrier frame (1), wherein the carrier frame (1) is provided with a feeding mechanism (2), a Y-direction folding and sewing mechanism (3), a cutting mechanism (4) and an X-direction folding and sewing mechanism (5), wherein the feeding mechanism (2) conveys the cloth along the X direction, the Y-direction folding and sewing mechanism (3) folds and sews two side edges of the cloth in the Y direction to form a double-sided cloth, after the double-sided cloth moves a preset length along the X direction, the cutting mechanism (4) cuts the double-sided cloth to form a cloth block, and the X-direction folding and sewing mechanism (5) folds and sews two side edges of the cloth block in the X direction to form a four-sided cloth, wherein the X direction and the Y direction are both horizontal directions and perpendicular to each other; The X-direction folding sewing mechanism (5) comprises a first conveying assembly (53) and an X-direction folding assembly (51), wherein the first conveying assembly (53) comprises a conveyor belt and a plurality of conveyor rollers (531) all meshed with the conveyor belt, wherein the conveyor belt drives the double-sided cloth to move on the bearing platform (811) of the bearing frame (1) along the Y direction; the X-direction folding assembly (51) comprises an X-direction folding driver (511), a conveying member (512) and a limiting rod (513); the limiting rod (513) is arranged on one side of the bearing platform (811) along the X direction, so that when the double-sided cloth is conveyed along the Y direction, the edge of the double-sided cloth along the X direction is clamped between the limiting rod (513) and the bearing platform (811), and the limiting rod (513) guides the edge to be bent to the bottom of the double-sided cloth; the X-direction folding driver (511) drives the conveying member (512) to move, and pushes the bent edge of the double-sided cloth to perform folding.

2. The bed sheet automated production line according to claim 1, characterized in that: The Y-direction folding and sewing mechanism (3) comprises a pre-folding assembly (31) and a Y-direction sewing assembly (32) which are sequentially arranged along the X direction, wherein the pre-folding assembly (31) is used for bending the side edge of the cloth in the Y direction to form a Y-direction folding; and the Y-direction sewing assembly (32) is used for sewing the Y-direction folding and the cloth to form a double-sided cloth.

3. The automatic bed sheet production line according to claim 2, characterized in that: The pre-folding assembly (31) comprises a pre-folding table (311), two guide members (312), a roller and a platform, wherein the two guide members (312) are arranged on both sides of the pre-folding table (311) along the Y direction, and a folding channel (313) is formed between the guide members (312) and the pre-folding table (311); guide parts (3121) are correspondingly arranged on both sides of the guide member (312) along the X direction, and the first guide part (3121) located at the input end of the pre-folding assembly (31) comprises an inclined surface inclined downward from the inner side to the outer side in the Y direction, so that The edges of the cloth on both sides along the Y direction are inclined toward the outside and downward along the first guide part (3121), the cloth moves along the pre-folding platform (311), and the inclined edges move along the folding channel (313) to form a first fold; the second guide part (3121) located at the output end of the pre-folding component (31) includes an inclined surface inclined downward from the outside of the Y direction to the inside, and the first fold is inclined toward the inside and downward along the second guide part (3121) to form a second fold; the second fold and the cloth are stacked through the roller and the platform.

4. The automatic bed sheet production line according to claim 1, characterized in that: The cutting mechanism (4) comprises a clamping and fixing component, a cutting knife component (41), a material grabbing and transporting component (42) and a second conveying component (43); the material grabbing and transporting component (42) can dock with the Y-direction hemming and sewing mechanism (3) to grab the end of the double-sided cloth along the X-direction and move a preset distance; the clamping and fixing component is located at the output end of the Y-direction hemming and sewing mechanism (3) and is used to clamp the double-sided cloth; the cutting knife component (41) is used to cut the double-sided cloth along the Y-direction to form a cloth block; the clamping and fixing component and the material grabbing and transporting component (42) can release the cloth block to make it fall to the second conveying component (43); the second conveying component (43) transports the cloth block along the Y-direction to dock with the X-direction hemming and sewing mechanism (5).

5. The automatic bed sheet production line according to claim 4, characterized in that: The cutting knife assembly (41) comprises a cutting knife frame (411), a cutting driver (412) and a cutting knife (413); the cutting knife frame (411) is slidably connected to the supporting frame (1) along the Y direction; the cutting driver (412) is arranged on the cutting knife frame (411), and its output end is connected to the cutting knife (413), and can drive the cutting knife (413) to rotate around its own axis.

6. The automatic bed sheet production line according to claim 4, characterized in that: The material grabbing and transporting assembly (42) comprises a material grabbing frame (421), a material grabbing driver (422), a first clamping plate (423) and a second clamping plate (424); the material grabbing frame (421) is slidably connected to the carrier frame (1) along the X direction; the first clamping plate (423) and the material grabbing driver (422) are both arranged on the material grabbing frame (421); the material grabbing driver (422) can drive the second clamping plate (424) so ​​that the double-sided cloth is clamped between the first clamping plate (423) and the second clamping plate (424).

7. The bed sheet automated production line according to claim 4, characterized in that: The second conveying component (43) is a negative pressure conveying platform, which is used to adsorb the double-sided cloth and can convey the double-sided cloth along the Y direction.

8. The bed sheet automated production line according to claim 1, characterized in that: The feeding mechanism (2) comprises a hopper (21), a first roller assembly (22), and a buffer assembly (24) arranged between the hopper (21) and the first roller assembly (22), wherein the first roller assembly (22) drives the cloth to be transported from the hopper (21) along the X direction; the buffer assembly (24) comprises a swing frame (241), a buffer table and a buffer driver (242); the swing frame (241) comprises two guide rollers (2411) extending along the Y direction, and the cloth can be passed between the two guide rollers (2411); the buffer driver (242) drives the swing frame (241) to swing around a center line parallel to the Y direction, so that the cloth between the hopper (21) and the first roller assembly (22) is stacked on the buffer table.

9. The automatic bed sheet production line according to claim 8, characterized in that: The cache driver (242) comprises a cache motor (2421), a rocker arm (2422) and a connecting rod (2423); the output end of the cache motor (2421) is connected to the rocker arm (2422) and can drive the rocker arm (2422) to rotate around a center line parallel to the Y direction; the two ends of the connecting rod (2423) are respectively hinged to the rocker arm (2422) and the swing frame (241).

10. The automatic bed sheet production line according to claim 1, characterized in that: The invention also comprises a pulley assembly, a material storage mechanism (6) and a reverse counterweight mechanism (7) located between the Y-direction folding and sewing mechanism (3) and the cutting mechanism (4); the material storage mechanism (6) comprises a plurality of first material storage rollers (61) and a plurality of second material storage rollers (622), and fabric is alternately wound around the plurality of first material storage rollers (61) and the plurality of second material storage rollers (622), and both ends of the plurality of second material storage rollers (622) and the reverse counterweight mechanism (7) along the Y direction are slidably connected to the carrier frame (1); the pulley assembly comprises a fixed pulley (73) rotatably connected to the carrier frame (1) and a flexible cable (72) wound around the fixed pulley (73), and both ends of the flexible cable (72) are respectively connected to the plurality of second material storage rollers (622) and the reverse counterweight mechanism (7).

11. The bed sheet automated production line according to claim 8, characterized in that: The feeding mechanism (2) further comprises a cloth receiving machine (23) arranged between the hopper (21) and the buffer assembly (24), the cloth receiving machine (23) comprising a cloth receiving driver (231), a first cloth receiving member (232), a second cloth receiving member (233) and a sewing machine, the second cloth receiving member (233) being fixedly connected to the carrier (1), the cloth receiving driver (231) being capable of driving the first cloth receiving member (232) to move toward the second cloth receiving member (233), so that cloth can be clamped between the first cloth receiving member (232) and the second cloth receiving member (233), and the sewing machine being located downstream of the first cloth receiving member (232) and the second cloth receiving member (233).

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