Curtain production equipment and method

Abstract

Curtain production equipment relates to the field of curtain production equipment and comprises a cloth placing device, a first hemming device, a first hemming machine and a transverse conveying belt which are sequentially arranged in the cloth input direction and further comprises a second hemming device, a second hemming machine and a curtain folding device which are perpendicular to the cloth conveying direction and connected with the transverse conveying belt. And the cloth feeding device is arranged above each device and is used for clamping and conveying cloth leftovers. When a curtain is produced, after the first hemming device completes hemming of the upper side and the lower side, the cloth conveying direction is changed through the transverse conveying belt, then hemming is conducted on the left side and the right side through the second hemming device, and accurate hemming and sewing of different edges of the curtain are achieved aiming at the problem that existing equipment cannot complete hemming of the top edge, the bottom edge and the side edges at the same time. And meanwhile, the defects that in traditional production, the procedures of cloth placing, hemming, sewing, folding and the like are scattered, and manual transfer consumes time are overcome, continuous and automatic processing of the curtain from unwinding to finished product folding is achieved, and the overall production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of curtain production equipment, specifically a curtain production equipment and method. Background Technology

[0002] Curtains are interior decoration products made from materials such as cloth, linen, and aluminum sheets. They serve multiple functions, including light blocking, heat insulation, and privacy protection, and have evolved from animal hides and paper curtains to fabrics and multi-functional materials. Currently, the traditional production model in the curtain manufacturing industry relies heavily on manual, segmented operations. Processes such as unrolling, ironing, trimming, hemming, sewing, and pleating must be completed step-by-step, with manual transfer of fabric between different processes. This not only results in low production efficiency but also easily leads to uneven hem widths and pleat position deviations due to human error. While existing automated equipment can mechanize some processes, most functions are limited, only capable of hemming on one side or in one direction. It's difficult to simultaneously perform continuous hemming of the top, bottom, and sides of the curtain. Furthermore, fabric deviation and wrinkles are prone to occur when switching fabric transport directions, requiring additional manual adjustments. This makes it unsuitable for the integrated, high-precision mass production needs of curtains and requires improvement. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a curtain production equipment and method.

[0004] The present invention adopts the following technical solution: A curtain production device includes a fabric feeding device, a first hemming device, a first sewing machine, and a transverse conveyor belt arranged sequentially along the fabric input direction. It also includes a second hemming device, a second sewing machine, and a curtain pleating device connected to the transverse conveyor belt perpendicular to the fabric feeding direction. Finally, a fabric feeding device is disposed above each device to clamp the fabric feed end. The fabric feeding device is located at the front of the equipment, which unwinds, irons, and conveys the fabric backward at a uniform speed; The first edge-rolling device is located on both sides of the fabric and includes a first edge-rolling mechanism that can automatically roll up the edge of the fabric, a core-feeding mechanism that feeds a hard core and rolls it up with the fabric, and a first drive mechanism that drives the first edge-rolling mechanism to move horizontally to gather the fabric for edge-rolling or to feed the fabric backward to the first sewing machine. The transverse conveyor belt receives and transversely transports the fabric perpendicular to the fabric conveying direction; The second edge-rolling device is located on both sides of the transverse conveyor belt; The curtain folding device is located at the end of the transverse conveyor belt and behind the second hemming device on one side to fold the hem of the fabric. The fabric feeding device includes a first fabric feeding mechanism that clamps and feeds the front end of the fabric between the fabric feeding device and the first sewing machine; a second fabric feeding mechanism that clamps the fabric end behind the first sewing machine and drives the fabric across to the outermost side of the transverse conveyor belt; and a third fabric feeding mechanism that clamps the edge of the fabric on the side of the transverse conveyor belt and feeds it along the conveying direction of the transverse conveyor belt.

[0005] The fabric feeding device includes a fabric feeding trough, a first fabric feeding roller, a second fabric feeding roller, an angular velocity sensor, and a fabric feeding adjustment cylinder. The fabric feeding trough is located at the front end of the equipment for placing the fabric roll. The first and second fabric feeding rollers are arranged vertically opposite each other to feed the fabric forward. The angular velocity sensor is connected to the first fabric feeding roller and measures its fabric feeding speed. The fabric feeding adjustment cylinder is connected to the second fabric feeding roller and controls the lifting and lowering of the second fabric feeding roller according to the signal fed back by the angular velocity sensor.

[0006] Preferably, it also includes an edge trimming device, which is located behind the fabric feeding device and on both sides of the fabric to trim the raw edges. The edge trimming device includes a rotating blade and a pressing rod. The rotating blade is located in the fabric feeding direction and its arrangement direction is parallel to the fabric feeding direction. The pressing rod is opposite to the rotating blade and is placed on it to ensure that the fabric passes between the pressing rod and the rotating blade.

[0007] Preferably, the second hemming device includes a second hemming mechanism that can automatically hemm the edge of the fabric and a second drive mechanism that drives the second hemming mechanism to move horizontally to gather the fabric for hemming or to convey the fabric backward to the second sewing machine.

[0008] Preferably, the second sewing machine is located behind the second hemming device and opposite to the second hemming mechanism, and receives the fabric conveyed by the second drive mechanism.

[0009] Preferably, the transverse conveyor belt further includes baffles disposed on both sides of the transverse conveyor belt, the baffles extending outward from both sides of the transverse conveyor belt and tilting upward, forming a retention space between the two baffles for accommodating the curtains.

[0010] Preferably, the curtain pleating device includes a third sewing machine, a transfer clamping mechanism, a pleating mechanism, and a reversing clamping mechanism. The third sewing machine is located behind the second hemming device and on one side of the transverse conveyor belt. The transfer clamping mechanism is located behind the third fabric feeding mechanism, clamps the fabric edge and moves it backward and inward, transferring the fabric edge from the standby position on the same side as the third fabric feeding mechanism to the processing position, so that the fabric edge rolled up by the first hemming device hangs down naturally. The pleating mechanism is opposite to the transfer clamping assembly in the processing position, clamps and pleats the fabric edge to form a Korean pleat. The reversing clamping mechanism receives the Korean pleat formed by the pleating mechanism and flips it to the third sewing machine to sew the Korean pleat.

[0011] Preferably, the curtain folding device further includes a folding edge-aligning mechanism, comprising a friction belt assembly and a clamping assembly. The friction belt mechanism is horizontally arranged below the curtain folding device, and the friction surface is parallel to the fabric edge. The clamping assembly is rotatably mounted on the friction belt assembly, and the fabric edge passes between the clamping assembly and the friction belt assembly and contacts the friction belt assembly, rotating with the friction belt assembly to change the position of the fabric edge.

[0012] Preferably, it also includes a position sensor and a controller. The position sensor is disposed on the friction belt assembly opposite to the fabric selvage and detects its horizontal displacement at the processing position. The controller is connected to both the position sensor and the friction belt assembly and controls the friction belt assembly to move the fabric selvage back and forth according to the feedback from the position sensor.

[0013] A curtain manufacturing method, based on a curtain manufacturing apparatus as described in any one of the above claims, includes: (1) Unwinding and ironing the fabric: Place the rolled fabric in the unwinding device, iron it flat, and then convey it backward. (2) Cutting and feeding the fabric: receiving the ironed fabric and cutting it to obtain the fabric needed for a complete curtain and continuing to feed it to the back; (3) The top and bottom edges of the curtain are rolled up. During the conveying process, the first rolling device rolls up both sides of the fabric (top and bottom edges of the curtain) and sews them to form rolled edges. (4) Transfer: After the top and bottom edges of the curtain are rolled up, the fabric is moved laterally by the transverse conveyor belt along the direction perpendicular to the fabric input. (5) Curtain side hem: During the horizontal translation process, the second hem rolling device rolls up both sides of the fabric (curtain side) and sews them to form a hem; (6) Folding: After the fabric is rolled up, the top edge continues to be conveyed forward. The curtain folding device set at the end of the equipment folds the top edge of the curtain in sequence to form the Korean edge and sews it to complete the production.

[0014] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows: When producing curtains, after the first hemming device completes the hemming of the top and bottom sides, the fabric conveying direction is changed by the transverse conveyor belt, and then the second hemming device hemms the left and right sides of the fabric. In view of the problem that the existing equipment cannot simultaneously hemm the top, bottom and side edges, the precise hemming and sewing of different edges of the curtain is achieved through the bidirectional conveying layout (longitudinal + transverse) and the coordinated cooperation of multiple hemming devices, ensuring the consistency of hemming quality. At the same time, it overcomes the defects of the traditional production process of fabric feeding, hemming, sewing and pleating, which are scattered and time-consuming due to manual transfer. It realizes the continuous and automated processing of curtains from unloading to finished product pleating, and improves the overall production efficiency. The fabric feeding device uses an angular velocity sensor in conjunction with a fabric feeding adjustment cylinder to control the raising and lowering of the second fabric feeding roller based on the signal fed back by the angular velocity sensor, thereby adjusting the fabric feeding speed, ensuring the flatness of the fabric fed into the equipment, avoiding processing errors caused by overfeeding or untimely feeding, and improving product quality. The trimming device is used to cut fabric to the appropriate length and width; Since the second hemming device only needs to process the left and right sides of the fabric, when the fabric feeding device clamps the left and right sides of the fabric for conveying, by setting a transverse conveyor belt with a width smaller than the width of the fabric, the space formed between it and the side baffles can accommodate excess fabric, which can further reduce the volume of the rear half of the equipment and reduce the space occupied by the equipment. The top edge is clamped by the curtain pleating device and pleated and sewn in sequence to evenly form a Korean pleat for hanging the curtain. Since the top edge of the curtain does not change its posture during the conveying process, the top edge of the fabric conveyed to this point is rolled up upwards. Under the requirements of Korean pleat processing, the Korean pleat needs to be flipped to one side by the reversing clamping mechanism and conveyed to the third sewing machine for sewing. The folding edge mechanism ensures that the top edge remains vertical and aligned with the fabric edge during folding, enabling smooth transfer of the fabric from the rolled edge to the folding process. A dedicated folding mechanism completes the precise shaping and sewing of the top edge fold of the curtain, avoiding positional deviations from manual folding and improving the aesthetics and standardization of the finished curtain. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a longitudinal view of the invention perpendicular to the fabric input direction; Figure 4 This is a transverse view of the present invention perpendicular to the conveying direction of the transverse conveyor belt; Figure 5 This is a schematic diagram of the structure of the present invention facing the transverse conveyor belt conveying direction; Figure 6 for Figure 1 A magnified view of a section at point A in the middle; Figure 7 for Figure 3 A magnified view of a section at point B in the middle; Figure 8 for Figure 3 A magnified view of a section at point C; Figure 9 This is a schematic diagram of the structure of the first edge-rolling device of the present invention. Figure 1 ; Figure 10 for Figure 9 A magnified view of a section at point D; Figure 11 This is a schematic diagram of the structure of the first edge-rolling device of the present invention. Figure 2 ; Figure 12 This is a longitudinal sectional view of the first hemming device of the present invention; Figure 13 This is a cross-sectional view of the first hemming device of the present invention; Figure 14 This is a schematic diagram of the curtain folding device of the present invention. Figure 1 ; Figure 15 This is a schematic diagram of the curtain folding device of the present invention. Figure 2 ; Figure 16 This is a schematic diagram of the folding edge mechanism of the present invention; In the diagram: 1-Fabric feeding device; 11-Fabric feeding trough; 12-First feed roller; 13-Second feed roller; 14-Angular velocity sensor; 15-Feed adjustment cylinder; 2-Edge trimming device; 21-Rotating blade; 22-Pressure bar; 23-Cutting blade; 3-First hemming device; 31-Fabric winding bracket; 32-Fabric winding sleeve; 321-L-shaped section; 322-Inverted L-shaped section; 33-Fabric winding mechanism; 331-Fabric winding insert; 332-Insert plate lifting assembly; 3321-Base plate; 3322-Insert plate lifting cylinder; 333-Insert plate telescopic assembly; 3331-Insert plate slide rail; 3332-Insert plate telescopic cylinder; 334-Secondary fabric winding assembly; 3341-Fabric winding rotary cylinder; 3342-Rotating block; 3 4-Core feeding mechanism; 341-Core feeding sleeve; 342-Core feeding roller; 343-Electronic meter counter; 344-Cutting assembly; 35-First drive mechanism; 351-Cloth roll transverse slide; 352-Cloth roll longitudinal slide; 353-Base plate; 354-Support lifting cylinder; 36-First automatic edge alignment mechanism; 361-Edge alignment roller; 362-Tilting assembly; 3621-Tilting plate; 3622-Hinge; 3623-Tilting cylinder; 363-Steering assembly; 3631-Steering shaft; 3632-Steering cylinder; 364-Photoelectric sensor; 4-First sewing machine; 5-Transverse conveyor belt; 51-Baffle; 6-Second hemming device; 7-Second sewing machine; 8-Curtain pleating device; 81-Third sewing device Machine; 82-Transfer clamping mechanism; 821-Transfer clamping pneumatic gripper; 822-Transfer longitudinal slide; 823-Transfer rotary cylinder; 824-Transfer connecting rod; 825-Extension rod; 826-Rotating block; 827-Rotating shaft; 83-Folding mechanism; 831-Double-blade gripper; 832-Single-blade gripper; 833-Folding clamping cylinder; 834-Folding lifting slide; 835-Folding longitudinal slide; 84-Reversing clamping mechanism; 841-Two-axis linear module; 8411-Reversing longitudinal slide; 8412-Reversing transverse slide; 842-Reversing clamping pneumatic gripper; 8421-Reversing gripper; 8422-Groove; 843-Reversing assembly; 8431-Positioning plate; 8432-Positioning groove; 84 33-Commutator; 8434-Commutator Linkage; 8435-Positioning Block; 85-Folding Edge-Aligning Mechanism; 851-Friction Belt Assembly; 8511-Edge-Aligning Bracket; 8512-Pulley; 8513-Friction Belt; 8514-Belt Motor; 852-Clamping Assembly; 8521-Clamping Plate; 8522-Edge-Aligning Clamping Cylinder; 8523-Clamping Groove; 853-Position Sensor; 9-Fabric Feeding Device; 91-First Fabric Feeding Mechanism; 911-First Fabric Feeding Belt Assembly; 912-First Fabric Feeding Pressure Plate; 913-First Fabric Feeding Cylinder; 92-Second Fabric Feeding Mechanism; 921-Second Fabric Feeding Belt Assembly; 922-Second Fabric Feeding Pressure Plate; 923-Second Fabric Feeding Cylinder; 93-Third Fabric Feeding Mechanism. Detailed Implementation

[0016] The present invention will be further described below through specific embodiments.

[0017] Reference Figures 1 to 16 As shown, a curtain production equipment includes a fabric feeding device 1, a trimming device 2, a first hemming device 3, a first sewing machine 4, and a transverse conveyor belt 5 arranged sequentially along the fabric input direction; a second hemming device 6, a second sewing machine 7, and a curtain pleating device 8 connected to the transverse conveyor belt 5 perpendicular to the fabric feeding direction; and a fabric feeding device 9 arranged above each device to clamp the fabric end being fed.

[0018] The fabric feeding device 1 is located at the front end of the equipment. It unloads, irons, and conveys the fabric backward at a uniform speed. It includes a fabric feeding trough 11, a first feeding roller 12, a second feeding roller 13, an angular velocity sensor 14, and a feeding adjustment cylinder 15. The fabric feeding trough 11 is positioned at the front end of the equipment to hold the fabric roll. The first feeding roller 12 and the second feeding roller 13 are positioned vertically opposite each other to convey the fabric forward. The angular velocity sensor 14 is connected to the first feeding roller 12 and measures its feeding speed. The feeding adjustment cylinder 15 is connected to the second feeding roller 13 and controls the raising and lowering of the second feeding roller 13 based on the signal fed back from the angular velocity sensor 14. By controlling the raising and lowering of the second feeding roller 13 based on the signal fed back from the angular velocity sensor 14, the feeding speed is adjusted to ensure the flatness of the fabric fed into the equipment, avoid processing errors caused by overfeeding or untimely feeding, and improve product quality. Specifically, the first feed roller 12 is an electrically heated roller. The fabric passes under the first feed roller 12 and goes around the second feed roller 13, and the first feed roller 12 irons the fabric.

[0019] The trimming device 2 is located behind the fabric feeding device 1 and on both sides of the fabric to trim rough edges. It includes a rotating blade 21 and a pressing rod 22. The rotating blade 21 is located in the fabric conveying direction and its arrangement is parallel to the fabric conveying direction. The pressing rod 22 is opposite to the rotating blade 21 and is disposed on it to ensure that the fabric passes between the pressing rod 22 and the rotating blade 21. It also includes a cutting blade 23 that can move perpendicular to the fabric conveying direction to cut the fabric.

[0020] The first edge-rolling device 3 is located on both sides of the fabric and includes a first edge-rolling mechanism consisting of a fabric roll support 31, a fabric roll sleeve 32, and a fabric roll mechanism 33, a core feeding mechanism 34, a first driving mechanism 35, and a first automatic edge-aligning mechanism 36.

[0021] The fabric roll support 31 is located on both sides of the fabric conveying direction.

[0022] The fabric roll sleeve 32 is located at the bottom of the fabric roll support 31 and above the fabric. It includes an L-shaped section 321 that is connected to the fabric roll support 31 and extends outward, and an inverted L-shaped section 322 that is located at the end of the L-shaped section 321 and extends inward. The width and height of the inverted L-shaped section 322 are both smaller than those of the L-shaped section 321, and a rotating channel for rolling up the fabric is formed between the inverted L-shaped section 322 and the L-shaped section 321.

[0023] The fabric winding mechanism 33 is mounted on the fabric winding bracket 31 to drive the fabric to wind around the fabric winding sleeve 32. The assembly includes a fabric roll insert 331, an insert lifting assembly 332, an insert telescopic assembly 333, and a secondary fabric roll assembly 334. The fabric roll insert 331 is positioned relative to the fabric roll sleeve 32. The insert lifting assembly 332 is mounted on the fabric roll bracket 31 and connected to the fabric roll insert 331, driving the fabric roll insert 331 to rise and fall. The insert telescopic assembly 333 is connected between the fabric roll sleeve 32 and the insert lifting assembly 332, driving the fabric roll insert 331 to move closer to or away from the fabric roll sleeve 32. The secondary fabric roll assembly 334 includes a fabric roll rotating cylinder 3341 and a rotating block 3342. The extended end of the fabric roll rotating cylinder 3341 faces downward and is mounted on the fabric roll sleeve 32, located between the L-shaped section 321 and the inverted L-shaped section 322. The rotating block 3342 is located at the end of the fabric roll rotating cylinder 3341, extending and rotating with the cylinder 3341 to insert into the space below the inverted L-shaped section 322. The fabric roll insert 331 rises and moves towards the fabric roll sleeve 32, causing the fabric to be lifted upwards and flipped inwards once. Then, the fabric roll rotation cylinder 3341 extends and pushes the fabric edge downwards under the inverted L-section 322 to complete the secondary hemming. The entire process requires no manual operation, precisely controls the fabric hemming, and greatly improves hemming efficiency while freeing up labor. Specifically, the insert lifting assembly 332 includes a base plate 3321 and an insert lifting cylinder 3322. The base plate 3321 is located at the bottom of the fabric roll support 31; the insert lifting cylinder 3322 is located on the base plate 3321 and connected to the fabric roll insert 331 to drive its lifting and lowering. Furthermore, the insert plate telescopic assembly 333 includes an insert plate slide rail 3331 and an insert plate telescopic cylinder 3332. The insert plate slide rail 3331 is disposed at the bottom of the fabric roll bracket 31 and connected to the base plate 3321. The base plate 3321 is movably disposed on the insert plate slide rail 3331. The insert plate telescopic cylinder 3332 is connected between the base plate 3321 and the fabric roll bracket 31 to drive the fabric roll insert plate 331 to move towards or away from the fabric roll sleeve 32.

[0024] The core feeding mechanism 34 includes a core feeding sleeve 341, a core feeding roller 342, an electronic meter counter 343, and a cutting assembly 344. One end of the core feeding sleeve 341 is opposite to the space between the inverted L-section 322 and the L-shaped section 321. The core feeding roller 342 is opposite to the other end of the core feeding sleeve 341 and feeds the rigid core fabric inward. The electronic meter counter 343 is connected to the core feeding roller 342 to record the length of the core fabric. The cutting assembly 344 is opposite to the core feeding roller 342 to cut the core fabric.

[0025] The first drive mechanism 35 drives the fabric roll support 31 to move horizontally to gather the fabric inward or convey the fabric end backward. The first drive mechanism 35 includes a fabric roll transverse slide 351, a fabric roll longitudinal slide 352, a base plate 353, and a support lifting cylinder 354. The extension direction of the fabric roll transverse slide 351 is perpendicular to the fabric conveying direction; the extension direction of the fabric roll longitudinal slide 352 is parallel to the fabric conveying direction and is movably mounted on the fabric roll transverse slide 351. The fabric roll support 31 is movably mounted on the fabric roll longitudinal slide 352; the base plate 353 is mounted on the fabric roll longitudinal slide 352 and can move back and forth along the fabric conveying direction; the support lifting cylinder 354 is connected between the base plate 353 and the fabric roll support 31 to drive its lifting and lowering.

[0026] The first automatic edge-aligning mechanism 36 includes an edge-aligning roller 361, a flipping component 362, a steering component 363, a photoelectric sensor 364, and a controller. The edge-aligning roller 361 is located at the front end of the fabric roll sleeve 32 and rolls against the top surface of the inverted L-section 322 to roll the edge-aligned fabric. The flipping component 362 is connected to the edge-aligning roller 361 and drives it to flip, moving away from or closer to the fabric roll sleeve 32. The steering component 363 is connected to the edge-aligning roller 361 and drives it to deflect left or right to control the left and right position of the fabric in the conveying direction. The photoelectric sensor 364 is located at the front end of the fabric roll sleeve 32 to detect the position of the fabric edge. The controller controls the steering component 363 to work based on the signal fed back from the photoelectric sensor 364. By observing the edge position of the subsequent fabric roll-in during edge-aligning through the photoelectric sensor 364, when the edge position of the fabric deviates, the controller controls the steering component 363 to drive the edge-aligning roller 361 to deflect, resetting it to the appropriate position, ensuring the consistency of the edge-aligning size, improving product quality, reducing the defect rate, and improving production efficiency. Specifically, the flipping assembly 362 includes a flipping plate 3621, a hinge 3622, and a flipping cylinder 3623. The flipping plate 3621 is connected to the fabric roll support 31 via the hinge 3622 and can rotate around a horizontal axis perpendicular to the fabric conveying direction. The opposite-edge roller 361 is rotatably mounted at the bottom of the flipping plate 3621. The flipping cylinder 3623 is connected between the flipping plate 3621 and the fabric roll support 31. One end of the flipping cylinder 3623 is rotatably connected to the flipping plate 3621, and the other end is rotatably connected to the fabric roll support 31. The flipping cylinder 3623 extends and retracts to drive the flipping plate 3621 to move the roller away from or towards the fabric roll sleeve 32. The flipping assembly 362 can flip the opposite-edge roller 361 upwards during hemming so as not to affect the normal hemming process. When the hemming is finished and the opposite-edge roller is flipped downwards, the opposite-edge roller 361 is pressed onto the fabric, which facilitates hemming during subsequent sewing. Furthermore, the steering assembly 363 includes a steering shaft 3631 and a steering cylinder 3632. The steering shaft 3631 is vertically mounted on the tilting plate 3621, and the opposite roller 361 is mounted at the bottom of the steering shaft 3631 and can rotate with it. The steering cylinder 3632 is mounted on the tilting plate 3621, connected to the steering shaft 3631, and drives it to rotate around its own axis.

[0027] The first hemming machine 4 is positioned behind the first hemming device 3 and is used to sew hems (top and bottom edges of the curtain). The first sewing machine is a common automatic sewing machine in the art, which is not the focus of this application, and its structure and selection will not be described in detail here.

[0028] The transverse conveyor belt 5 receives and transversely conveys the fabric perpendicular to the fabric conveying direction. The transverse conveyor belt 5 also includes baffles 51 disposed on both sides of the transverse conveyor belt 5. The baffles 51 extend outward from both sides of the transverse conveyor belt 5 and tilt upward, forming a retention space between the two baffles 51 for accommodating the curtain.

[0029] The second hemming device 6 includes a second hemming mechanism that automatically hemms the fabric edge and a second drive mechanism that drives the second hemming mechanism to move horizontally to gather the fabric for hemming or to convey the fabric backward to the second sewing machine 7. The structure of the second hemming device 6 is completely the same as that of the first hemming device 3 except for the lack of the core feeding mechanism 34. Its structure will not be described in detail here. Since the second fabric rolling device located on both sides of the transverse conveyor belt 5 after the fabric is transversely shifted performs hemming on the side of the curtain, and the side of the curtain does not need to be inserted with a rigid core fabric, the core feeding mechanism 34 is not required at this location.

[0030] The second hemming machine 7 is located behind the second hemming device 6 and opposite to the second hemming mechanism. It receives and sews the fabric hemming (curtain side edge) fed by the second drive mechanism.

[0031] The curtain pleating device 8 includes a third sewing machine 81, a transfer clamping mechanism 82, a pleating mechanism 83, a reversing clamping mechanism 84, and a pleating opposite edge mechanism 85.

[0032] The third hemming machine 81 is located behind the second hemming device 6, on one side of the transverse conveyor belt 5 and facing the edge of the fabric.

[0033] The transfer clamping mechanism 82 is located at the end of the transverse conveyor belt 5. It clamps the fabric edge and moves it backward and inward simultaneously, transferring the fabric edge from the standby position on the same side as the third fabric feeding mechanism 93 to the processing position, so that the fabric edge (top edge of the curtain) rolled up by the first hemming device 3 naturally hangs down. The transfer clamping mechanism 82 includes a transfer clamping gripper 821, a transfer longitudinal slide 822, a transfer rotary cylinder 823, and a transfer connecting rod 824. The transfer clamping gripper 821 is located on both sides of the fabric to clamp the top edge of the fabric; the transfer longitudinal slide 822 is arranged along the fabric conveying direction; the transfer rotary cylinder 823 is located between the transfer clamping gripper 821 and the transfer longitudinal slide 822, and moves with the transfer longitudinal slide 822 and drives the transfer clamping gripper 821 to rotate to the processing position; one end of the transfer connecting rod 824 is located on the transfer rotary cylinder 823, and the other end is located on the transfer clamping gripper 821, and rotates with the transfer rotary cylinder 823 to keep the orientation of the transfer clamping gripper 821 unchanged. Specifically, it also includes an extension rod 825, which extends outward from the top surface of the extension end of the transfer rotary cylinder 823. A folding clamping cylinder 833 is located at the end of the extension rod 825 and is rotatably connected to the end of the extension rod 825 via a rotating shaft 827. A rotating block 826 that can rotate with the rotating shaft 827 is provided on the rotating shaft 827. One end of the transfer connecting rod 824 is rotatably connected to the rotating block 826, and the other end is rotatably mounted on the cylinder body of the transfer rotary cylinder 823.

[0034] The folding mechanism 83 is opposite to the transfer clamping assembly 852 in the processing position. It includes a double-blade gripper 831 located on the outer side of the top edge of the fabric and a single-blade gripper 832 located on the inner side of the top edge of the fabric. The double-blade gripper 831 and the single-blade gripper 832 close to fold the top edge of the fabric to form a Korean fold. Specifically, the pleating mechanism 83 also includes a pleating clamping cylinder 833, a pleating lifting slide 834, and a pleating longitudinal slide 835. The pleating clamping cylinder 833 is connected to and drives the double-blade gripper 831 and the single-blade gripper 832 to open or close. The pleating lifting slide 834 is set perpendicular to the ground, and the pleating clamping cylinder 833 can be raised and lowered on it. After clamping the fabric edge, it rises with the pleating lifting slide 834 to be opposite to the reversing clamping mechanism 84. The pleating longitudinal slide 835 is arranged longitudinally, and the pleating lifting slide 834 can be moved on it. The pleating clamping cylinder 833 moves closer to or further away from the fabric edge with the pleating longitudinal slide 835.

[0035] The reversing clamping mechanism 84 receives the Korean fold formed by the pleating mechanism 83, flips it, and conveys it to the third sewing machine 81 for sewing. The reversing clamping mechanism 84 receives the fabric opposite to the transfer clamping mechanism 82, flips the fabric, and conveys it to the pleating and sewing machine for sewing. It includes two axial linear modules 841, a reversing clamping gripper 842, and a reversing assembly 843. The two axial modules 841 are positioned on a horizontal plane above the fabric, with the two axes facing the fabric conveying direction and perpendicular to it, respectively. The reversing clamping gripper 842 faces the processing position and is connected to the two axial modules 841, moving closer to or away from the processing position to clamp the Korean fold. The reversing assembly 843 is connected to the reversing clamping gripper 842, driving the reversing clamping gripper 842 to rotate, reversing the direction of the Korean fold and conveying it to the pleating and sewing machine. Specifically, the dual-axis linear module 841 includes a reversing longitudinal slide 8411 extending along the fabric conveying direction and a reversing transverse slide 8412 vertically disposed on the reversing longitudinal slide 8411 and movable therewith; the reversing assembly 843 includes a positioning plate 8431, a positioning groove 8432, a reversing device 8433, a reversing linkage 8434, and a positioning block 8435. The positioning plate 8431 is movably disposed on the reversing longitudinal slide 8411, and the reversing transverse slide 8412 is disposed on the positioning plate 8431; the positioning groove 8432 is formed on the positioning plate 8431 along the extending direction of the reversing transverse slide 8412. It includes a horizontal section and a V-shaped section connected sequentially along the direction gradually approaching the pleating and sewing machine; a reversing device 8433 is movably mounted on a reversing transverse slide 8412, and its rotation axis extends longitudinally in the horizontal plane; a reversing gripper 842 is rotatably mounted on the reversing device 8433; a reversing link 8434 is connected to the reversing device 8433 to drive the reversing gripper 842 to rotate; a positioning block 8435 is mounted on the reversing link 8434 and engages with the positioning groove 8432, and the positioning block 8435 drives the reversing device 8433 to rotate when it moves from the horizontal section of the positioning groove 8432 to the V-shaped section with the reversing transverse slide 8412. Furthermore, the reversing gripper 842 is equipped with a reversing gripper 8421 for gripping the folded fabric edge. A groove 8422 is recessed within the inner side of the reversing gripper 8421. The groove 8422 rotates with the reversing assembly 843 from a position facing the inside of the fabric to a position facing the folding and sewing machine. When the reversing gripper 842 is at the starting point of the stroke of the reversing longitudinal slide 8411, the reversing gripper 8421 is completely disengaged from the processing position.

[0036] Preferably, the reversing transverse slide 8411 is equipped with two cylinders, one long and one short, and a transversely extending guide rail. The reversing clamping gripper 842 is movably mounted on the guide rail. The cylinder bodies of the two cylinders are fixedly connected to each other. The extended end of the short cylinder is fixed to the positioning plate 8431, and the extended end of the long cylinder is fixed to the reversing clamping gripper 842. When the short cylinder extends and the long cylinder retracts, the reversing clamping gripper 842 moves to the left away from the processing position; when the short cylinder retracts and the long cylinder retracts, the reversing clamping gripper 842 moves to the processing position; when the short cylinder retracts and the long cylinder extends, the reversing clamping gripper 842 moves to the right to the third sewing machine 81 for sewing.

[0037] The pleating and edge-aligning mechanism 85 is positioned below the pleating mechanism 83 to position and adjust the horizontal position of the top edge of the fabric in the vertical direction. The pleating and edge-aligning mechanism 85 includes a friction belt assembly 851, a clamping assembly 852, and a position sensor 853. The friction belt assembly 851 is horizontally arranged below the pleating mechanism 83, and the friction surface of the belt is parallel to the naturally hanging fabric edge. The clamping assembly 852 is rotatably mounted on the friction belt assembly 851, and the fabric edge passes between the clamping assembly 852 and the friction belt assembly 851. The position sensor 853 is mounted on the friction belt assembly 851, opposite to the fabric edge, and monitors the amount of movement of the fabric edge. Specifically, the friction belt assembly 851 includes a side support 8511, a pulley 8512, a friction belt 8513, and a belt motor 8514. The side support 8511 is located on one side of the fabric edge and extends along the fabric conveying direction. The pulley 8512 is positioned opposite to the side support 8511. The friction belt 8513 is sleeved on the two pulleys 8512, with the friction surface parallel to the hanging fabric edge and located outside the side support 8511. The belt motor 8514 is located on the side support 8511 and connected to one of the pulleys 8512, driving the pulley 8512 to rotate forward and backward according to the fabric edge position fed back by the position sensor 853. Furthermore, the clamping assembly 852 includes a clamping plate 8521 and an opposite-side clamping cylinder 8522. The clamping plate 8521 is rotatably mounted on the opposite-side bracket 8511 and can rotate in the direction of approaching or moving away from the friction belt 8513. The clamping plate 8521 has a clamping groove 8523 with a width greater than that of the friction belt 8513. One end of the opposite-side clamping cylinder 8522 is rotatably connected to the opposite-side bracket 8511, and the other end is rotatably connected to the clamping plate 8521. The clamping plate 8521 rotates with the opposite-side clamping cylinder 8522 so that the friction belt 8513 enters the clamping groove 8523, pressing the fabric edge to contact the friction belt 8513.

[0038] The fabric feeding device 9 includes a first fabric feeding mechanism 91 that clamps and feeds the front end of the fabric between the fabric feeding device 1 and the first sewing machine 4; a second fabric feeding mechanism 92 that clamps the fabric end behind the first sewing machine 4 and drives the fabric across to the outermost side of the transverse conveyor belt 5; and a third fabric feeding mechanism 93 that clamps the edge of the fabric on the side of the transverse conveyor belt 5 and feeds it along the conveying direction of the transverse conveyor belt 5.

[0039] The first fabric feeding mechanism 91 includes a first fabric feeding belt assembly 911, a first fabric feeding pressure plate 912, and a first fabric feeding cylinder 913. The first fabric feeding belt assembly 911 is connected between the fabric feeding device 1 and the first sewing machine 4 and is located above the edge trimming device 2 and the first fabric rolling device. The first fabric feeding pressure plate 912 is located below both sides of the fabric, with one side extending upwards and connecting to the first fabric feeding belt. It is driven by the first fabric feeding belt assembly 911 to move between the fabric feeding device 1 and the first sewing machine 4. The first fabric feeding cylinder 913 is located above the fabric and opposite the first fabric feeding pressure plate 912. It can extend downwards to clamp the fabric on the side facing forward in the conveying direction (the side of the curtain). Specifically, the first fabric feeding pressure plate 912 is located close to the edge of the fabric and is not opposite to the first fabric rolling device in its stored state. After the first fabric feeding mechanism 91 completes the fabric feeding and resets, the first fabric rolling device moves inwards to roll the fabric.

[0040] The second fabric feeding mechanism 92 includes a second fabric feeding belt assembly 921, a second fabric feeding pressure plate 922, and a second fabric feeding cylinder 923. The second fabric feeding belt assembly 921 is parallel to the first fabric feeding mechanism 91 and is arranged across the transverse conveyor belt 5 and opposite to the first sewing machine 4. The second fabric feeding pressure plate 922 is located below both sides in the fabric input direction, and one side extends upward to connect with the second fabric feeding belt assembly 921. It is driven by the second fabric feeding belt assembly 921 to move from the right side of the transverse conveyor belt 5 to the left side of the transverse conveyor belt 5. The second fabric feeding cylinder 923 is located above the fabric and the second fabric feeding pressure plate 922, and can extend downward to clamp the fabric on the side facing forward in the conveying direction (the side of the curtain).

[0041] The third fabric feeding mechanism 93 includes a third fabric feeding belt assembly 931, which is positioned above the transverse conveyor belt 5 and behind the second fabric feeding mechanism 92. It extends along the conveying direction of the transverse conveyor belt 5 to its end. After clamping the fabric on the forward-facing side (top edge of the curtain), the third fabric feeding belt assembly 931 moves the fabric from the middle section of the transverse conveyor belt 5 (the end of the second fabric feeding belt assembly 921) to its end. The end of the third fabric feeding mechanism 93 is opposite to the transfer clamping mechanism 82, where the transfer clamping gripper 821 clamps the top edge of the curtain conveyed by the third fabric feeding mechanism 93 to the end of the transverse conveyor belt 5.

[0042] When producing curtains: (1) Fabric feeding and ironing: The rolled fabric is placed in the fabric feeding groove 11 of the fabric feeding device 1. The worker pulls the fabric head to pass through the first feeding roller 12 and the second feeding roller 13 in sequence. After the first feeding mechanism 91 clamps the fabric head, the device is started. The fabric head is pulled forward. The first feeding roller 12 heats and irons the fabric passing through here. At the same time, the feeding speed is monitored by the angular velocity sensor 14 and the feeding adjustment cylinder 15 is extended and retracted to drive the second feeding roller 13 to move up and down to control the feeding speed. (2) Cutting and feeding the fabric: When the fabric moves forward with the first feeding mechanism 91, it passes between the pressing rod 22 and the rotating blade 21 to complete the cutting of both sides of the fabric. According to the signal fed back by the angular velocity sensor 14, the cutting blade 23 is controlled to move and quantitatively cut out a piece of fabric of the set length required for a complete curtain and continue to be fed backward. (3) The top and bottom edges of the curtains are rolled up. ① Before the fabric enters the first hemming device 3, control the fabric rolling sleeve 32 to rise above the fabric, and control the fabric rolling insert 331 to move below the fabric. The fabric rolling sleeve 32 and the fabric rolling insert 331 move away from each other to the maximum distance, and control the fabric rolling rotary cylinder 3341 to reset. ② Gathering the fabric: The fabric head moves with the first fabric feeding mechanism 91 to a position parallel to the end of the fabric roll sleeve 32. The first driving mechanism 35 drives the fabric roll bracket 31 to move inward to gather the fabric, so that the edge of the fabric moves to the bottom of the fabric roll sleeve 32 and the top of the fabric roll insert 331. ③ Once the fabric is rolled, control the fabric rolling plate 331 to move upward to above the fabric rolling sleeve 32, then control the fabric rolling plate 331 to move along the direction close to the fabric rolling sleeve 32 to above the inverted L section 322. At the same time, the fabric rolling sleeve 32 moves appropriately along the direction close to the fabric rolling plate 331 so that the end of the fabric moves to the bottom of the fabric rolling rotary cylinder 3341 and is clamped. ④ Secondary fabric rolling: the fabric rolling rotary cylinder 3341 extends, the rotating block 3342 presses down on the fabric and rotates, bringing the fabric edge between the L-shaped section 321 and the inverted L-shaped section 322 to complete the fabric rolling. ⑤ Core feeding: The rigid core fabric is quantitatively fed into the rotary channel through the core feeding roller 342, electronic meter counter 343 and cutting assembly 344 via the core feeding sleeve 341. ⑥ Feeding the fabric and the opposite edge: Finally, the entire fabric roll support 31 moves forward along the fabric conveying direction to feed the rolled edge into the first sewing machine 4 for sewing, and controls the flipping component 362 to flip the opposite edge roller 361 downward to roll the fabric on the fabric roll sleeve 32. The edge position of the subsequent fabric rolled into the fabric roll sleeve 32 is detected by the photoelectric eye 364, and the opposite edge roller 361 is controlled to deflect so that the offset fabric edge returns to a straight line. (4) Transfer: After the top and bottom edges of the curtain are sewn and rolled by the first sewing machine 4, the fabric head is held by the second feeding mechanism 92 and moved across the right side of the transverse conveyor belt 5 to the left side, so that the fabric is laid flat on the transverse conveyor belt 5 and then the top edge, which is rolled, is held by the third feeding mechanism 93 and conveyed along the extension direction of the transverse conveyor belt 5. (5) Curtain side hem: During the horizontal translation process, the second hem rolling device 6 rolls up both sides of the fabric (curtain side) and the second hem sewing machine 7 sews them to form a hem; (6) Discount, ①After the fabric is rolled up, the top edge continues to be conveyed forward. After the top edge moves to the end of the transverse conveyor belt 5, the top edge end is clamped by the transfer clamping mechanism 82 and raised and moved inward to the processing position, so that the top edge of the fabric hangs down naturally. ② Simultaneously control the top edge of the fabric below the processing position of the folding and edge-aligning mechanism 85, and monitor the position of the top edge by the position sensor 853 to control the forward and reverse rotation of the friction belt assembly 851 to drive the fabric to move and keep it in a vertical state. ③ The folding mechanism 83 extends forward to the processing position and controls the double-blade gripper 831 and single-blade gripper 832 to close to form a Korean fold through the folding clamping cylinder 833. After clamping the Korean fold, it moves upward to the position opposite to the reversing clamping mechanism 84. ④ The reversing gripper 842 extends forward to above the processing position to grip the folded fabric and controls the folding gripper cylinder 833 to release and reset. Then, it drives the folded fabric to move laterally. After the reversing component 843 completes the reversal, it moves to the third sewing machine 81 to sew the folded fabric, then releases the fabric and resets. ⑤ Repeat the above steps until the top edge of the curtains is completely pleated.

[0043] This application achieves a high degree of automation in the curtain production process by using a first hemming device 3 to hem the top and bottom sides, then changing the fabric conveying direction via a transverse conveyor belt 5, and finally using a second hemming device 6 to hem the left and right sides of the fabric. This eliminates the need for manual intervention, freeing up a large amount of labor, and features concentrated processes, a compact equipment structure, and a small footprint.

[0044] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the patent of the present invention.

Claims

1. A window treatment production apparatus, characterized by: The device comprises a cloth feeding device, a first hemming device, a first sewing machine and a horizontal conveying belt arranged in sequence along the cloth feeding direction, a second hemming device, a second sewing machine and a curtain folding device connected with the horizontal conveying belt perpendicularly to the cloth conveying direction, and a cloth feeding device arranged above each device to clamp the cloth head, The cloth feeding device is arranged at the front end of the device to feed, iron and convey the cloth at a constant speed. The first hemming device is arranged at both sides of the cloth, comprising a first hemming mechanism to automatically roll up the cloth edge, a core feeding mechanism to feed the hard core and make it roll up with the cloth, and a first driving mechanism to drive the first hemming mechanism to move horizontally to gather the cloth for hemming or convey the cloth to the first sewing machine. The horizontal conveying belt receives and transversely conveys the cloth perpendicularly to the cloth conveying direction. The second hemming device is arranged at both sides of the horizontal conveying belt. The curtain folding device is arranged at the end of the horizontal conveying belt and behind the second hemming device on one side to fold the cloth hemming position. The cloth feeding device comprises a first cloth feeding mechanism arranged between the cloth feeding device and the first sewing machine to clamp the cloth head at the front end for conveying, a second cloth feeding mechanism arranged behind the first sewing machine to clamp the cloth head and drive the cloth to cross to the outermost side of the horizontal conveying belt, and a third cloth feeding mechanism arranged at the side of the horizontal conveying belt to clamp the cloth edge and convey along the conveying direction of the horizontal conveying belt.

2. A window treatment production apparatus according to claim 1, wherein: The cloth feeding device comprises a cloth feeding groove, a first cloth feeding roller, a second cloth feeding roller, an angular velocity sensor and a cloth feeding adjusting cylinder. The cloth feeding groove is arranged at the front end of the device for placing the cloth roll. The first cloth feeding roller and the second cloth feeding roller are arranged oppositely above and below to convey the cloth forward. The angular velocity sensor is connected with the first cloth feeding roller to measure the cloth feeding speed. The cloth feeding adjusting cylinder is connected with the second cloth feeding roller to control the lifting of the second cloth feeding roller according to the feedback signal of the angular velocity sensor.

3. A window treatment production apparatus according to claim 2, wherein: The device further comprises an edge cutting device arranged behind the cloth feeding device and at both sides of the cloth to cut the raw edge, comprising a rotating blade and a pressing rod. The rotating blade is arranged in the cloth conveying direction and its arrangement direction is parallel to the cloth conveying direction. The pressing rod is opposite to the rotating blade and is arranged above the rotating blade to ensure that the cloth passes between the pressing rod and the rotating blade.

4. The window shade production apparatus of claim 1, wherein: The second hemming device comprises a second hemming mechanism to automatically roll up the cloth edge and a second driving mechanism to drive the second hemming mechanism to move horizontally to gather the cloth for hemming or convey the cloth to the second sewing machine.

5. A window treatment production apparatus according to claim 4, wherein: The second sewing machine is arranged behind the second hemming device opposite to the second hemming mechanism to receive the cloth conveyed by the second driving mechanism.

6. The window shade production apparatus of claim 1, wherein: The horizontal conveying belt further comprises a baffle arranged at both sides of the horizontal conveying belt. The baffle extends outward from both sides of the horizontal conveying belt and inclines upward. The space between the two baffles forms a retention space for accommodating the curtain.

7. The window shade production apparatus of claim 1, wherein: The curtain folding device comprises a third hemming machine, a transfer clamping mechanism, a folding mechanism and a reversing clamping mechanism. The third hemming machine is arranged behind the second hemming device and on one side of the horizontal conveying belt. The transfer clamping mechanism is arranged behind the third cloth conveying mechanism, clamps the cloth edge and moves backward and inward at the same time, transfers the cloth edge from the standby position on the same side of the third cloth conveying mechanism to the processing position, and makes the cloth edge rolled up by the first hemming device naturally fall downward; the folding mechanism is opposite to the transfer clamping assembly at the processing position, clamps and folds the cloth edge to form a Korean fold; and the reversing clamping mechanism receives the Korean fold formed by the folding mechanism and reverses and conveys the Korean fold to the third hemming machine for sewing the Korean fold.

8. A window treatment production apparatus according to claim 7, wherein: The curtain folding device further comprises a folding and opposite edge mechanism, which comprises a friction belt assembly and a clamping assembly. The friction belt assembly is horizontally arranged below the curtain folding device, and the friction surface is parallel to the cloth edge. The clamping assembly is rotatably arranged on the friction belt assembly. The cloth edge passes between the clamping assembly and the friction belt assembly and contacts the friction belt assembly, and rotates with the friction belt assembly to change the position of the cloth edge.

9. A window treatment production apparatus according to claim 8, wherein: The position sensor and the controller are further included. The position sensor is arranged on the friction belt assembly opposite to the cloth edge and detects the horizontal displacement amount of the cloth edge at the processing position. The controller is connected with the position sensor and the friction belt assembly respectively, and controls the forward and backward movement of the cloth edge driven by the friction belt assembly according to the model feedback by the position sensor.

10. A curtain production method based on the curtain production equipment according to any one of claims 1-9, characterized in that: (1) cloth is placed in the cloth placing device and unwound, and after being ironed and flattened, it is conveyed backward; (2) the cloth is received and cut to obtain the cloth required for a complete curtain and continues to be conveyed backward; (3) the top and bottom edges of the curtain are rolled, and the two sides (the top and bottom edges of the curtain) of the cloth are rolled upward and sewn to form rolled edges by the first edge rolling device during the conveying process; (4) transfer, the cloth is horizontally translated perpendicular to the cloth input direction by the horizontal conveying belt after the top and bottom edges of the curtain are rolled; (5) the curtain side edge is rolled, and the two sides (the curtain side edge) of the cloth are rolled upward and sewn to form rolled edges by the second edge rolling device during the horizontal translation process; (6) folding, after the cloth is rolled, the top edge continues to be conveyed forward, and the curtain folding device arranged at the end of the equipment folds the top edge of the curtain in sequence to form a Korean edge and sews to complete the production.

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