A flipping and folding device for a fabric folding machine

Abstract

This invention discloses a flipping and folding device for a fabric folding machine. The product has a fabric support conveyor belt assembly fitted between the left and right conveyor belt shaft fitting devices, forming an upper belt assembly, a lower belt assembly, and a middle space. A slotted gap is provided between the conveyor belts of the fabric support conveyor belt assembly. A support platform, a fabric flattening plate device, a pressure plate lifting cylinder device, a fabric detection sensor, and a first pressure strip flipping device with a first flipping pressure strip are arranged between the middle sections of the front and rear frames. The support platform is arranged transversely in the middle space. The pressure plate lifting cylinder device is fixedly connected to the outside of the fabric flattening plate device. This product automatically completes the flipping and folding process through the coordinated operation of the above-mentioned functional components, improving the flipping and folding efficiency of fabric folds in multiple folding processes. This flipping and folding process eliminates the need for manual pressing and smoothing, and the dimensions, fold positions (creases), and specifications are standardized.

Description

Technical Field

[0001] This invention relates to a fabric folding device, specifically to a flipping and folding device for a fabric folding machine. Background Technology

[0002] For example 1: Patent document publication number: CN115417229A discloses a non-woven fabric folding machine, including a frame and a drive unit, a transmission unit, and a folding unit disposed within the frame. The frame includes a top plate; the top plate has a notch; there are two folding units and two notches, and the folding units are rotatably connected to the top plate at the edge of the notch; there are two drive units symmetrically disposed, which drive the two folding units to rotate through the transmission unit; a fixed plate and a movable plate are disposed on the top plate; the movable plate and the fixed plate are disposed between the two notches; the movable plate is rotatably disposed relative to the top plate, and after rotation, it coincides with the upper surface of the fixed plate. With the above structural setup, the drive unit provides power, and the transmission unit transmits power, thereby folding the folding unit. The folding unit folds the non-woven fabric laid flat on the top plate. The fixed plate and movable plate allow the folded non-woven fabric to be further folded and placed on the fixed plate, which has square grooves for placement. After folding, the worker removes the non-woven fabric and lays a new one flat on the top plate, thus achieving the folding effect. However, the above structure requires manual assistance to first lay the fabric flat, then control the automatic folding, and finally manually remove it, making it a semi-automatic operation with low folding efficiency. Since each company designs different fabric folding and turning mechanisms, the above folding structure is not suitable for conveyor belt-type folding and turning machines.

[0003] For example, 2: Existing home dining table cloths and countertop cloths are cut by the manufacturer to the specified size, and then the edges of the cloth are sewn together with a sewing machine. Then, each piece is manually folded and turned several times to reduce its volume and area before being packed into a bag and shipped to the market. The manual folding is slow, has low production efficiency, high labor costs, and always has some drawbacks such as not being folded neatly enough or not being standardized.

[0004] For example, patent document publication number CN210854668U discloses a non-woven fabric folding machine, including a fixed platform. A first fixed plate is provided on the left side of the upper surface of the fixed platform. A connecting groove is horizontally opened at the right end of the front side of the first fixed plate. Rotating grooves are opened at the front and rear ends of the right side of the first fixed plate. The connecting grooves are connected to the rotating grooves. A second fixed plate is provided on the right side of the first fixed plate. Rotating blocks are installed at the front and rear ends of the left side of the second fixed plate. A connecting hole is opened in the middle of the front side of the rotating block. The rotating block passes through the rotating groove and is connected. A drive motor and a vacuum pump are respectively provided on the front and rear sides of the upper surface of the fixed platform. The motor shaft of the drive motor is connected to a rotating rod. The first fixed plate and the second fixed plate are movably connected through the rotating rod passing through the connecting groove and the connecting hole. The air inlet pipe of the vacuum pump is connected to the middle of the conduit. Vacuum grooves are horizontally opened inside the first fixed plate and the second fixed plate. The left and right ends of the conduit are respectively connected to the vacuum grooves inside the first fixed plate and the second fixed plate. Several sets of vacuum holes are opened on the inner wall of the top of the vacuum groove. In use, the above-described structure involves placing the non-woven fabric on the upper surfaces of the first and second fixed plates. The air pump is then activated, sucking in the non-woven fabric through the suction holes. A rotating rod passes through the connecting slot and connecting hole, movably connecting the first and second fixed plates. The drive motor's shaft then rotates the second fixed plate, folding the non-woven fabric from the second fixed plate onto the upper surface of the first fixed plate. The air pump stops, and the drive motor resets the second fixed plate. This method is convenient and quick. However, it requires manual intervention to first lay the fabric flat, then automatically fold it, and finally manually remove it. This semi-automatic folding operation results in low efficiency. Furthermore, because each company designs different fabric folding mechanisms, this folding structure is not suitable for conveyor belt-type folding machines. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a flipping and folding device with a reasonable structure, which is automatically completed by cooperating with a controller, a motor transmission device, a left conveyor belt shaft sleeve device, a right conveyor belt shaft sleeve device, a fabric support conveyor belt assembly, a fabric flat pressing plate device, a pressing plate lifting cylinder device, a fabric detection sensor, and a first pressing strip flipping device with a first flipping pressing strip.

[0006] A folding and turning device for a fabric folding machine includes a controller, a front frame, a rear frame, a motor drive, a left conveyor belt shaft sleeve device, a fabric support conveyor belt assembly, and a right conveyor belt shaft sleeve device. The motor drive is connected to the left conveyor belt shaft sleeve device, and the controller is connected to the motor drive via a wire. The fabric support conveyor belt assembly is sleeved and tightened between the left and right conveyor belt shaft sleeve devices, thereby forming an upper belt assembly and a lower belt assembly. A middle space is formed between the upper and lower belt assemblies. The conveyor belt of the fabric support conveyor belt assembly... A perforated gap is provided between the front and rear frames. A support platform, a fabric flattening plate device, a pressure plate lifting cylinder device, a fabric detection sensor, and a first pressure strip flipping device with a first flipping pressure strip are arranged between the middle sections of the front and rear frames. There are at least two first flipping pressure strips; the width of the first flipping pressure strip is less than the width of the perforated gap. The support platform is located in the middle section of the fabric support conveyor belt assembly, transversely arranged in the middle space, and its front and rear ends are fixedly connected to the corresponding front and rear frame walls. The top surface of the support platform is close to the reverse side of the upper belt assembly. The outer side of the fabric flattening plate device is connected to the pressure plate lifting cylinder device. The top of the cylinder device is fixedly connected to the pressure plate lifting cylinder device, which is used to drive the fabric flat pressure plate device to rise and fall, expand laterally and retract laterally; the fabric flat pressure plate device is arranged above the middle section of the upper belt assembly, and is perpendicular to the support platform; after the pressure plate lifting cylinder device drives the fabric flat pressure plate device to rise, the fabric can be conveyed from the top of the upper belt assembly; after the pressure plate lifting cylinder device drives the fabric flat pressure plate device to fall, the fabric is clamped between the support platform and the fabric flat pressure plate device, waiting to be folded; the fabric detection sensor is located behind the support platform and the fabric flat pressure plate device, and is used to detect whether the fabric is folded to the required level. Reaching the designated position; the fabric detection sensor is connected to the controller via a data cable; the pressure plate lifting cylinder device and the first pressure strip flipping device are controlled by the controller; the first pressure strip flipping device is close to the support platform, the first flipping pressure strip and the first pressure strip flipping device are transversely traversed in the middle space, the first flipping pressure strip is set in the same direction as the fabric support conveyor belt assembly, each first flipping pressure strip corresponds vertically and centeredly with different columns of cutout gaps, the first pressure strip flipping device is used to drive the first flipping pressure strip to flip and fold the fabric piece by passing through the cutout gap from bottom to top, the cutout gap provides flipping space for the first flipping pressure strip.

[0007] The beneficial effects of the flipping and folding device of the fabric folding machine of the present invention are as follows: This product is automatically completed by the cooperation of a controller, a motor transmission device, a left conveyor belt shaft sleeve device, a right conveyor belt shaft sleeve device, a fabric support conveyor belt assembly, a fabric flat pressing plate device, a pressing plate lifting cylinder device, a fabric detection sensor, and a first pressing strip flipping device with a first flipping pressing strip. This improves the efficiency of at least one flipping and folding in multiple folding processes. This flipping and folding process eliminates the need for manual pressing and flattening, reducing labor costs throughout the process. The size, fold position (crease), specifications, etc. are all standardized, and each process is uniform. Attached Figure Description

[0008] Figure 1 , Figure 2 , Figure 3 This is a perspective view of the fabric folding machine of the present invention;

[0009] Figure 4 This is a perspective view of the structure of the product of the present invention, showing the connection between the folding and bottom insertion folding device and the flipping folding device.

[0010] Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 This is a three-dimensional structural view of the flipping and folding device of the present invention;

[0011] Figure 13 This is a three-dimensional structural view of the product support platform of the present invention;

[0012] Figure 14 This is a three-dimensional structural view of the fabric flat pressing plate device of the present invention;

[0013] Figure 15 , Figure 16 This is a schematic diagram of the fabric pieces of the product of the present invention being stacked and fed into the upper conveyor belt assembly;

[0014] Figure 17 This is a schematic diagram showing how four fabric correction cylinders and correction push plates center and correct the fabric stack after the fabric stack of the product of this invention reaches the designated position of the fabric detection sensor.

[0015] Figure 18 This is a schematic diagram of the process by which the fabric pieces of the product of the present invention are pressed and flattened by the fabric flat pressing plate device, and the first pressing strip is flipped and folded by the first pressing strip flipping device.

[0016] Figure 19 The diagram shows the fabric stack of the product of the present invention being folded and flipped by the first flipping strip, forming an upper fabric stack and a lower fabric stack.

[0017] Figure 20 This is a schematic diagram of the process where the front auxiliary pressure bar and the rear auxiliary pressure bar of the product of the present invention move over to press the upper layer of fabric pieces, the fabric piece flat pressure plate device presses the lower layer of fabric pieces, and the second pressure bar flipping device drives the second flipping pressure bar to flip and fold.

[0018] Figure 21 This is a schematic diagram showing the fabric sheet of the product of the present invention being folded and flipped again by the second flipping strip;

[0019] Figure 22 This is a schematic diagram of the fabric sheet stack of the product of the present invention being pressed down by the fabric stacking flattening and air-discharging device;

[0020] Figure 23 This is a schematic diagram of the fabric sheet stack being conveyed to the fabric sheet stacking compression device below the product of the present invention;

[0021] Figure 24 This is a schematic diagram of the fabric stack of the product of the present invention being pressed down by the fabric stack compression device;

[0022] Figure 25 This is an exploded view of the fabric stacking and compression device of the present invention;

[0023] Figure 26 This is a perspective view of the fabric stacking and flattening device of the present invention.

[0024] Figure 27 This is a perspective view showing the connection of the first pressure bar flipping device, the second pressure bar flipping device, and the flipping shaft spacing adjustment device of the present invention.

[0025] Figure 28 This is a perspective view of the connection structure of the top-mounted cylinder, the cloth flat pressing plate device, and the pressing plate lifting cylinder device of the present invention.

[0026] Figure 29 , Figure 30 This is a perspective view of the connection structure of the first pressure strip flipping device, the second pressure strip flipping device, the flipping shaft spacing adjustment device, the top-mounted cylinder, the cloth flat pressure plate device, and the pressure plate lifting cylinder device of the present invention.

[0027] Figure 31 This is a schematic diagram of the connection structure of the cloth correction cylinder, correction push plate and correction air source control valve of the present invention.

[0028] Folding and Insertion Device 1, Controller A, Front Frame B, Rear Frame C, Motor Transmission Device D, Drive Motor D1, Motor Gear D2, Motor Transmission Belt D3, Rotating Shaft Gear D4, Left Conveyor Belt Rotating Shaft Sleeving Device E, Left Front Bearing Seat E1, Left Conveyor Belt Rotating Shaft E2, Left Rear Bearing Seat E3, Right Conveyor Belt Rotating Shaft Sleeving Device G, Right Front Bearing Seat G1, Right Conveyor Belt Rotating Shaft G2, Right Rear Bearing Seat G3, Support Platform H, Upper Top Plate H1, Top Plate Seat Frame H2, Pressure Plate Lifting Cylinder Device J, Cylinder Base J1, Pressure Plate Lifting Cylinder J2, Pressure Plate Cylinder Air Source Control Valve J3, Common Lifting Crossbeam J4, Front Lateral Telescopic Cylinder J5, Front Lifting Vertical Frame J6, Rear Lateral Telescopic Cylinder J7, Rear Lifting Vertical Frame J8, Crossbeam Cylinder Air Source Control Valve J9, Fabric detection sensor K, Light emitter K1, Light reflector K2, Right side frame S, Threading hole S1, Left front fabric correction cylinder T, Left front correction push plate T1, Right front fabric correction cylinder U, Right front correction push plate U1, Left rear fabric correction cylinder V, Left rear correction push plate V1, Right rear fabric correction cylinder W, Right rear correction push plate W1, Correction air source control valve X, Front top cylinder bracket N, Front top cylinder N1, Front auxiliary pressure rod N2, Rear top cylinder bracket O, Rear top cylinder O1, Top cylinder control valve NO, Rear auxiliary pressure rod O2, Fabric flat pressure plate device I, Front flat pressure plate I1, Rear flat pressure plate I2, Fabric support conveyor belt assembly F, Upper belt assembly F1, Middle space F2, Lower belt assembly F3, Cutout gap F4, First pressure The components include: a strip flipping device L, a first flipping pressure strip L1, a first front rotating shaft support L2, a first flipping shaft L3, a first rotating shaft gear L4, a first rack assembly L5, a first flipping cylinder L6, a first rear rotating shaft support L7, a first cylinder air source control valve L8, a first front limit anti-detachment ring L31, a first rear limit anti-detachment ring L32, a first rack seat L51, a first transverse rack L52, a second pressure strip flipping device M, a second flipping pressure strip M1, a second front rotating shaft support M2, a second flipping shaft M3, a second rotating shaft gear M4, a second rack assembly M5, a second flipping cylinder M6, a second rear rotating shaft support M7, a second cylinder air source control valve M8, a second front limit anti-detachment ring M31, a second rear limit anti-detachment ring M32, and a second rack seat M51. Second transverse rack M52, tilting shaft spacing adjustment device P, spacing adjustment handwheel P1, main spacing rotation adjustment shaft P2, main shaft front bevel gear P3, main shaft front axle seat P4, front cylinder spacing adjustment threaded rod P5, front left bevel gear P6, front left bearing seat P7, front right bearing seat P8, front positioning sliding device P9, main shaft rear bevel gear P10, main shaft rear axle seat P11, rear cylinder spacing adjustment threaded rod P12, rear left bevel gear P13, rear left bearing seat P14, rear right bearing seat P15, rear positioning sliding device P16, fabric stacking and flattening device Q, fabric stacking plate frame Q1, lever frame Q2, lever base shaft Q3, longitudinal lifting cylinder Q4, longitudinal cylinder air source control valve Q5, fabric stacking and compression device R, front side panel frame R1.Rear wall panel frame R2, support plate device R3, cylinder gantry R4, fabric stacking compression cylinder R5, fabric stacking compression plate R6, fabric piece detection signal sensor R7, upper half signal transmitter R71, lower half signal reflector R72, compression cylinder air source control valve R8, guide rod positioning hole R9, compression plate positioning rod R10, upper signal transmitting through hole R11, lower signal transmitting through hole R12, air vent R13, front wall panel seat R31, rear wall panel seat R32, top support plate R33. Detailed Implementation

[0029] A flipping folding device for a fabric folding machine, wherein the fabric piece referred to herein is a stack of fabric pieces that has been folded four times by the first four folding devices of the fabric folding machine; the previous process of this flipping folding device is a folding and inserting device, and the fabric piece being folded falls into this flipping folding device after being folded in half by the folding and inserting device 1, continuing the fifth and sixth folding operations; this flipping folding device operates cyclically; this flipping folding device is the folding device for the fifth and sixth folds of the fabric piece; this flipping folding device includes a controller A (control system), a front frame B, a rear frame C, a motor drive device D, a left conveyor belt shaft sleeve device E, a right conveyor belt shaft sleeve device G, and a fabric piece supporting conveyor belt assembly F; the fabric piece supporting conveyor belt assembly F itself has a certain restoring elasticity property; the controller A is connected to the motor drive device D via wires; the front frame B... Frame B and rear frame C are made of iron metal plates and serve as plate supports. The distance between the left conveyor belt shaft sleeve device E and the right conveyor belt shaft sleeve device G is 1.6 meters to 2.6 meters, meaning the top length of the fabric support conveyor belt assembly F is 1.6 meters to 2.6 meters, set according to the actual situation based on the required size (specification) of the folded fabric stack. The width of the fabric support conveyor belt assembly F is 30 centimeters to 65 centimeters, generally 40 centimeters to 50 centimeters, with the optimal width determined by the width of the folded fabric stack. The left conveyor belt shaft sleeve device E, the right conveyor belt shaft sleeve device G, and the fabric support conveyor belt assembly F are preferably horizontally arranged to ensure flat conveying of the fabric stack. Of course, they can also be slightly tilted from left to right. The surface of the fabric support conveyor belt assembly F is rough, creating good friction with the fabric stack and preventing it from sliding naturally.

[0030] The motor drive device D is connected to the left conveyor belt shaft sleeve device E. A fabric support conveyor belt assembly F is sleeved and tightened between the left conveyor belt shaft sleeve device E and the right conveyor belt shaft sleeve device G, thus forming an upper belt assembly F1 and a lower belt assembly F3. A middle space F2 (a hollow space) is formed between the upper belt assembly F1 and the lower belt assembly F3. A perforated gap F4 is provided between the conveyor belts supporting the fabric support conveyor belt assembly F (i.e., the upper belt assembly F1). The lower belt assembly F3 has slotted gaps F4 between the belts (the upper and lower slotted gaps F4 are perpendicular), and the width of the slotted gaps F4 is 4 cm to 6 cm; the fabric support conveyor belt assembly F is composed of several fabric support conveyor belts, preferably: the fabric support conveyor belt assembly F is composed of 5 to 8 fabric support conveyor belts, and the width of the fabric support conveyor belt is 3 cm to 5 cm; the fabric support conveyor belt is made of rubber, silicone, PVC, or a composite of fabric and soft rubber;

[0031] The main technical improvements of this product are as follows: A support platform H, a fabric flat pressing plate device I, a pressing plate lifting cylinder device J, a fabric detection sensor K, and a first pressing strip flipping device L with a first flipping pressing strip L1 are provided between the front frame B and the rear frame C; there are at least two first flipping pressing strips L1, preferably three to four; the width of the first flipping pressing strip L1 is less than the width of the cutout gap F4; the support platform H is made of iron metal, with a flat top surface, and is preferably horizontally positioned; the support platform H is rectangular, with a length of 30 cm to 65 cm and a width of 30 cm to 50 cm, and the length of the support platform H is slightly less than, equal to, or slightly greater than the width of the fabric supporting conveyor belt assembly F; the first flipping pressing strip L1 is a metal strip.

[0032] The supporting platform H is located in the middle section of the fabric supporting conveyor belt assembly F, and is arranged horizontally in the middle space F2. Its front and rear ends are fixedly connected to the corresponding front frame B and rear frame C walls with screws. The top surface of the supporting platform H is close to the reverse side of the upper belt assembly F1. The supporting platform H is fixed and stationary. There is a space of 2 cm to 4 cm between the supporting platform H and the reverse side of the upper belt assembly F1. Under normal conditions, the supporting platform H does not contact the upper belt assembly F1 and will not affect the rotation of the upper belt assembly F1. The circumferential shape and size of the fabric flat pressing plate device I are basically the same as those of the supporting platform H. The left and right edges of the supporting platform H and the fabric flat pressing plate device I are straight, and the straightness can produce obvious straight dividing creases when the fabric is flipped and folded.

[0033] The outer side of the fabric flat pressing plate device I is fixedly connected to the top of the pressing plate lifting cylinder device J. The pressing plate lifting cylinder device J is used to drive the fabric flat pressing plate device I to rise and fall, to expand laterally and retract laterally. The pressing plate lifting cylinder device J is connected between the front frame B and the rear frame C. The fabric flat pressing plate device I is arranged above the middle section of the upper belt assembly F1, and the fabric flat pressing plate device I is perpendicular to the supporting platform H. Under normal conditions, after the pressing plate lifting cylinder device J drives the fabric flat pressing plate device I to rise, there is a fabric overlap between the upper belt assembly F1 and the fabric flat pressing plate device I. The space for conveying fabric stacks will not obstruct their normal transport. The height between the upper belt assembly F1 and the fabric flattening device I is 5 cm to 10 cm, allowing the fabric stacks to be conveyed from the top of the upper belt assembly F1. After the pressure plate lifting cylinder device J drives the fabric flattening device I to descend, the fabric is clamped between the support platform H and the fabric flattening device I, awaiting folding. The fabric detection sensor K is located behind the support platform H and the fabric flattening device I, and is used to detect whether the fabric stack has reached the designated position. The fabric detection sensor K is connected to the controller A via a data cable.

[0034] The first pressure strip flipping device L is located near the support platform H. The first flipping pressure strip L1 and the first pressure strip flipping device L traverse the middle space F2. The first flipping pressure strip L1 is arranged in the same direction as the fabric support conveyor belt assembly F, so that the first flipping pressure strip L1 can flip from bottom to top. The flipping degree of the first flipping pressure strip L1 is 0 degrees to 200 degrees. Each first flipping pressure strip L1 corresponds vertically and centered with the cutout gaps F4 of different columns. Since the fabric stack is wide and flat, it needs to be supported at different positions before flipping, so that the fabric stack as a whole will not sag. Therefore, the first flipping pressure strips L1 are vertically arranged vertically in the cutout gaps F4 of different columns. 1; The first pressure strip flipping device L is used to drive the first flipping pressure strip L1 to flip and fold the fabric piece from bottom to top through the cutout gap F4. The cutout gap F4 provides flipping space for the first flipping pressure strip L1. The diameter or width of the first flipping pressure strip L1 is smaller than the width of the cutout gap F4. The length of the first flipping pressure strip L1 is equal to or slightly smaller than the width of the supporting platform H. The pressure plate lifting cylinder device J and the first pressure strip flipping device L are controlled by the controller A (the pressure plate lifting cylinder device J and the first pressure strip flipping device L are connected to the controller A through wires and are controlled by the controller A). Fabric piece stacking refers to at least two layers of fabric pieces stacked together.

[0035] Working process: Controller A first controls the motor drive device D to start rotating. The motor drive device D drives the left conveyor belt shaft sleeve device E to rotate. The fabric-supporting conveyor belt assembly F rotates with the left conveyor belt shaft sleeve device E, and the right conveyor belt shaft sleeve device G rotates accordingly. Thus, the fabric-supporting conveyor belt assembly F rotates from left to right. The fabric detection sensor K continuously feeds back signals to controller A. Since this flipping and folding device is a device that continues the fabric folding process after the previous folding and inserting device, the fabric, after being folded by the folding and inserting device, falls on top of the upper left belt assembly F1 of this flipping and folding device. The conveyor belt assembly F rotates from left to right, so the fabric stack is conveyed from left to right. The fabric stack passes between the support platform H and the fabric flattening device I. During the conveying process, when the front of the fabric stack is captured and detected by the fabric detection sensor K, a feedback signal is sent to the controller A, which is considered as the fabric stack having been conveyed to the designated position. Then, the controller A controls the motor drive device D to stop rotating, and the left conveyor belt shaft sleeve device E, the right conveyor belt shaft sleeve device G, and the fabric support conveyor belt assembly F stop rotating. The fabric stack stops conveying and remains stationary, with the middle section of the fabric stack just stopping between the support platform H and the fabric flattening device I. Then the controller... Controller A controls the lowering cylinder device J of the pressure plate lifting mechanism to lower the fabric flattening pressure plate device I. The fabric flattening pressure plate device I presses down from the top of the fabric stack. Then, the support platform H and the fabric flattening pressure plate device I clamp the fabric stack, flattening and smoothing the fabric surface. The upper belt assembly F1 is also clamped together, with a clamping force of 2 kg to 4 kg, pressing it tightly until it is ready to be folded. Then, controller A controls the first pressure bar flipping device L to rotate clockwise and flip. Its first flipping pressure bar L1 passes through the cutout gap F4 from bottom to top and flips. The first flipping pressure bar L1 lifts the fabric stack from the bottom of the fabric and quickly flips (flips) the fabric stack, using the fabric flattening pressure plate device. Based on the edge pressing of the I, the fabric stack is folded over to the top of the fabric flat pressing plate device I, and a certain pressure is applied to flatten the fabric stack, thus completing the fabric stack folding and forming an upper fabric stack and a lower fabric stack. The fabric flat pressing plate device I is sandwiched between the upper and lower fabric stacks, that is, the fabric flat pressing plate device I is covered by the upper fabric stack. The first flipping pressing strip L1 temporarily presses the fabric stack still, and then the controller A controls the next folding procedure. The first pressing strip flipping device L determines the flipping angle through its own flipping stroke. This folding work is completed automatically, and the time from detecting the fabric to completing this folding is 3 to 5 seconds.This invention improves the efficiency of one of the folding processes in a multi-folding procedure for fabric pieces. The folding process eliminates the need for manual pressing and smoothing. It is automatically completed by a controller A, a motor drive device D, a left conveyor belt shaft sleeve device E, a right conveyor belt shaft sleeve device G, a fabric support conveyor belt assembly F, a fabric flattening pressure plate device I, a pressure plate lifting cylinder device J, a fabric detection sensor K, and a first pressure strip flipping device L with a first flipping pressure strip L1, operating according to a pre-set program. The entire process reduces labor costs, and dimensions, fold positions (creases), and specifications are standardized; each process is uniform.

[0036] Furthermore: the left and right sections of the upper layer with component F1 are jointly provided with a fabric correction device on their front and rear outer sides; the fabric correction device includes a left front fabric correction cylinder T, a left front correction push plate T1, a left rear fabric correction cylinder V, a left rear correction push plate V1, a right front fabric correction cylinder U, a right front correction push plate U1, a right rear fabric correction cylinder W, a right rear correction push plate W1, and a correction air source control valve X;

[0037] A left front fabric correction cylinder T is provided on the left front outer side of the upper belt assembly F1. A left front correction push plate T1 is fixed to the telescopic rod end of the left front fabric correction cylinder T. The bottom edge of the left front correction push plate T1 is slightly higher than the upper belt assembly F1 and does not contact the upper belt assembly F1. A right front fabric correction cylinder U is provided on the right front outer side of the upper belt assembly F1. A right front correction push plate U1 is fixed to the telescopic rod end of the right front fabric correction cylinder U. The bottom edge of the right front correction push plate U1 is slightly higher than the upper belt assembly F1 and does not contact the upper belt assembly F1. The left front fabric correction cylinder T and the right front fabric correction cylinder U are fixed to the front frame B by connecting brackets and screws.

[0038] A left rear fabric correction cylinder V is provided on the outer left side of the upper belt assembly F1. A left rear correction push plate V1 is fixed to the telescopic rod end of the left rear fabric correction cylinder V. The bottom edge of the left rear correction push plate V1 is slightly higher than the upper belt assembly F1 and does not contact the upper belt assembly F1. A right rear fabric correction cylinder W is provided on the outer right side of the upper belt assembly F1. A right rear correction push plate W1 is fixed to the telescopic rod end of the right rear fabric correction cylinder W. The bottom edge of the right rear correction push plate W1 is slightly higher than the upper belt assembly F1 and does not contact the upper belt assembly F1. The left rear fabric correction cylinder V and the right rear fabric correction cylinder W are fixed to the rear frame C by connecting brackets and screws. The left front fabric correction cylinder T and the right front fabric correction cylinder U are set at the same height facing each other. The left rear fabric correction cylinder V and the right rear fabric correction cylinder W are set at the same height facing each other.

[0039] The left front fabric correction cylinder T, right front fabric correction cylinder U, left rear fabric correction cylinder V, and right rear fabric correction cylinder W are all connected to the same correction air source control valve X via air pipes. Correction air source control valve X is connected to controller A via an electrical wire; correction air source control valve X is a solenoid valve. The air source for the left front fabric correction cylinder T, right front fabric correction cylinder U, left rear fabric correction cylinder V, and right rear fabric correction cylinder W is connected to the factory's own air source pipeline network through correction air source control valve X to obtain blowing and suction air pressure.

[0040] Sometimes, the fabric stack falling onto the top of the upper conveyor belt F1 may be slightly misaligned, but the misalignment is small and not perfectly straight, so correction is necessary. To ensure that the fabric stack falling onto the top of the upper conveyor belt F1 is conveyed to the designated position without any misalignment in any direction, and that the fabric stack is straighter and neater after folding, this fabric correction device is installed. In use: when the front of the fabric stack is detected by the fabric detection sensor K, a feedback signal is sent to the controller A, and it is considered that the fabric stack has been conveyed to the designated position. Controller A controls the opening of the blowing valve and closing of the suction valve of the correction air source control valve X. Simultaneously, air pressure enters the left front fabric correction cylinder T, right front fabric correction cylinder U, left rear fabric correction cylinder V, and right rear fabric correction cylinder W. The telescopic rods of these cylinders extend simultaneously, and the left front correction push plate T1 and left rear correction push plate V1 are simultaneously pushed into the upper layer belt assembly F1. The spacing between the opposing plates V1 decreases, thus centering the left section of the fabric stack in the middle of the upper belt assembly F1. Simultaneously, the right front correction push plate U1 and the right rear correction push plate W1 are pushed into the upper belt assembly F1, reducing the spacing between them. This further centers the right section of the fabric stack in the middle of the upper belt assembly F1. As a result, the rectangular fabric stack is centered. This eliminates any tilting or misalignment in the fabric stack, making it straighter and neater after folding. Position; This correction takes 1 to 2 seconds; After pushing, controller A controls the blowing valve of the correction air source control valve X to close and the suction valve to open. The telescopic rods of the left front fabric correction cylinder T, right front fabric correction cylinder U, left rear fabric correction cylinder V, and right rear fabric correction cylinder W are sucked in and retracted. The corresponding left front correction push plate T1, right front correction push plate U1, left rear correction push plate V1, and right rear correction push plate W1 then retract to the side of the fabric support conveyor belt assembly F; then controller A will control the next procedure. Since this fabric piece has already been folded four times by the first four folding devices of the fabric folding machine, forming a fabric stack with six layers, it has a certain thickness and rigidity, so it can be pushed and corrected by the correction cylinders.

[0041] Further: A second pressure bar flipping device M with a second flipping pressure bar M1 is provided between the front frame B and the rear frame C; there are at least two second flipping pressure bars M1, and preferably three to four second flipping pressure bars M1; the width of the second flipping pressure bar M1 is less than the width of the cutout gap F4; the second flipping pressure bar M1 is a metal strip.

[0042] The fabric flat pressing plate device I includes a front flat pressing plate I1 and a rear flat pressing plate I2, which are symmetrically arranged at the same height and facing each other. The front flat pressing plate I1 and the rear flat pressing plate I2 have the same length, width, and shape. The length of the front flat pressing plate I1 and the rear flat pressing plate I2 is equal to or slightly greater than half the width of the fabric support conveyor belt assembly F. The left and right edges of the front flat pressing plate I1 and the rear flat pressing plate I2 are straight. The front flat pressing plate I1 and the rear flat pressing plate I2 are arranged flat on the top surface of the support platform H (upper top plate H1), preferably both are horizontal, so that the pressing effect is better. The outer sides of the front flat pressing plate I1 and the rear flat pressing plate I2 are fixedly connected to the top of the pressing plate lifting cylinder device J. The pressing plate lifting cylinder device J is used to drive the front flat pressing plate I1 and the rear flat pressing plate I2 to lift synchronously, expand laterally, and retract laterally. The front flat pressing plate I1 and the rear flat pressing plate I2 can be made of one plate or two plates.

[0043] The front flat plate I1 and the rear flat plate I2 are fixedly connected to the top of their outer edges with screws to corresponding front top cylinder brackets N and rear top cylinder brackets O. The front top cylinder brackets N and the rear top cylinder brackets O are also fixedly connected to corresponding front top cylinders N1 and O1, which are tilted downwards to the right. The front top cylinders N1 and O1 are connected to a top cylinder control valve NO via air pipes. The top cylinder control valve NO is connected to a controller A via wires. The telescopic rod ends of each of the front top cylinders N1 and O1 are laterally fixedly connected to front auxiliary pressure rods N2 and O2 via screws. The front auxiliary pressure rods N2 and O2 are symmetrically arranged at the same height and facing each other, located above the right edge of the corresponding front flat plate I1 and rear flat plate I2. The top cylinder control valve NO is a solenoid valve.

[0044] The first pressure strip flipping device L is located on the left side near the support platform H, and the second pressure strip flipping device M is located on the right side near the support platform H. The second flipping pressure strip M1 and the second pressure strip flipping device M traverse the middle space F2. The second flipping pressure strip M1 is arranged in the same direction as the fabric support conveyor belt assembly F. Each second flipping pressure strip M1 corresponds centered with a different column of cutout gaps F4. The second pressure strip flipping device M is used to drive the second flipping pressure strip M1 to flip and fold the fabric piece by passing through the cutout gaps F4 from bottom to top. The cutout gaps F4 provide flipping space for the second flipping pressure strip M1.

[0045] The first pressure strip flipping device L drives the first flipping pressure strip L1 to flip clockwise, and the second pressure strip flipping device M drives the second flipping pressure strip M1 to flip counterclockwise. The second flipping pressure strip M1 works in conjunction with the front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 to achieve the flipping, folding, and clamping of the fabric sheet on both sides. The front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 are shorter than the corresponding lengths of the front flat pressure plate I1 and the rear flat pressure plate I2. Preferably, the length of the front auxiliary pressure rod N2 is 30% to 50% of the length of the front flat pressure plate I1, and the length of the rear auxiliary pressure rod O2 is 30% to 50% of the length of the rear flat pressure plate I2. The air sources of the front top cylinder N1 and the rear top cylinder O1 are both connected to the factory's own air source pipeline through the top cylinder control valve NO to obtain blowing air pressure and suction air pressure. The front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 serve as folding positioning rods for the second pressure strip flipping device M.

[0046] During operation, it continues from the process of the first pressure bar flipping device L mentioned above. When the first flipping pressure bar L1 presses the fabric sheet into place (also driven by the first pressure bar flipping device L to flip the first flipping pressure bar L1 clockwise to press the fabric sheet into place), the front auxiliary pressure bar N2 and the rear auxiliary pressure bar O2 are sandwiched between the upper and lower layers of fabric sheet from the previous fold. Then, the controller A will control the top cylinder control valve NO to open the blowing valve and close the suction valve. The telescopic rods of the front top cylinder N1 and the rear top cylinder O1 will quickly extend. The front auxiliary pressure bar N2 and the rear auxiliary pressure bar O2 will push down slightly. Then, the controller A will control the top cylinder control valve NO to close the blowing valve and open the suction valve. The front top cylinder N1 and the rear top cylinder O1 will quickly extend their telescopic rods. The telescopic rod of cylinder O1 retracts rapidly, while the front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 are quickly lifted. The front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 quickly move upward and return to the top of the upper fabric stack, pressing down on the upper fabric stack (that is, because the fabric stack has a certain degree of flexibility, the front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 are short in length and located on the outer edge of the fabric stack. When the front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 move upward rapidly, they can quickly slide over the outer edge of the fabric stack and return to the top of the upper fabric stack, pressing down on the upper fabric stack). The front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 temporarily press down on the upper fabric stack. The working time is 1 to 2 seconds.

[0047] Then, controller A controls the first pressure strip flipping device L to reverse and flip, so that the first flipping pressure strip L1 returns to the middle layer space F2 to reset and complete the reset, and disengages from the pressing fabric stack;

[0048] Then, controller A controls the second pressure bar flipping device M to rotate clockwise. The second flipping pressure bar M1 passes through the cutout gap F4 from bottom to top and flips. The second flipping pressure bar M1 lifts the fabric stack from the bottom of the fabric and quickly folds (flips) the fabric stack. The lower fabric stack is folded based on the edge pressing of the fabric flat pressing plate device I, and the upper fabric stack is folded based on the front auxiliary pressure bar N2 and the rear auxiliary pressure bar O2. The second flipping pressure bar M1 simultaneously flips and folds the upper and lower fabric stacks. The first flipping pressure bar L1 flips clockwise. The fabric stack is folded, and the second flipping pressure strip M1 is flipped counterclockwise. The fabric stack will be folded again to the top of the front flat pressure plate I1 and the rear flat pressure plate I2, and a certain pressure will be applied to flatten the fabric stack and prevent the fabric stack from rebounding naturally. Then the fabric stack folding of the second pressure strip flipping device M is completed. This folding and compression shortens the original long strip of fabric stack. After the above two flipping folds, the original length can be reduced by 70% to 75%. For example, the original fabric stack length is 1 meter, and after the above two flipping folds, its length becomes 25 cm to 30 cm.

[0049] Then, controller A controls the second pressure strip flipping device M to reverse and flip, so that the second flipping pressure strip M1 returns to the middle layer space F2 to reset and complete the reset, and disengages from the press cloth stack;

[0050] Then, controller A controls the pressure plate lifting cylinder device J to perform the disengagement operation. The pressure plate lifting cylinder device J laterally opens the front flat pressure plate I1 and the rear flat pressure plate I2, and the front auxiliary pressure rod N2 and the rear auxiliary pressure rod O2 are opened simultaneously. The front flat pressure plate I1, the rear flat pressure plate I2, the front auxiliary pressure rod N2, and the rear auxiliary pressure rod O2 exit (disengage) from the folded fabric stack. The front flat pressure plate I1 and the front auxiliary pressure rod N2 exit laterally from the front side, and the rear flat pressure plate I2 and the rear auxiliary pressure rod O2 exit laterally from the rear side. The front flat pressure plate I1, the rear flat pressure plate I2, the front auxiliary pressure rod N2, and the rear auxiliary pressure rod O2 no longer contact the fabric stack.

[0051] The aforementioned second pressure strip flipping device M, in conjunction with the front top cylinder bracket N and the rear top cylinder bracket O, can simultaneously complete the flipping and folding of the lower and upper fabric stacks. After folding, it exits. The entire process is completed automatically by the machine. It is low in cost, fast and efficient in folding, and the fabric stacks are uniform in size, fold position (crease), and specifications after folding. The folded pieces are square and neat.

[0052] Then, controller A will control the next step of the program.

[0053] Further: Above the fabric flattening and emptying device I, there is a fabric stacking flattening and emptying device Q that moves up and down. After the fabric is flipped and folded, it is pressed down and flattened by the fabric stacking flattening and emptying device Q to prevent the fabric stack from rebounding and loosening due to being too high or too thick. The fabric stacking flattening and emptying device Q is located between the front frame B and the rear frame C, above the upper belt assembly F1.

[0054] The fabric stacking and flattening air-discharging device Q includes a fabric stacking plate frame Q1, a lever frame Q2, a lever base shaft Q3, a longitudinal lifting cylinder Q4, and a longitudinal cylinder air source control valve Q5. The longitudinal cylinder air source control valve Q5 is a solenoid valve. The longitudinal lifting cylinder Q4 is connected to the longitudinal cylinder air source control valve Q5 through an air pipe. The longitudinal cylinder air source control valve Q5 is connected to the controller A through an electric wire. The top of the fabric stacking plate frame Q1 is movably connected to the end of the lever frame Q2 (i.e., two through holes are opened at the top of the fabric stacking plate frame Q1, and a round transverse shaft is welded and fixed at the end of the lever frame Q2. The transverse shaft can just pass through the two through holes for limiting and preventing detachment, forming a movable connection). The lever base shaft Q3 is movably passed through the middle and rear section of the lever frame Q2 (i.e., a transverse rod hole is opened in the middle and rear section of the lever frame Q2, and the lever base shaft Q3 passes through the transverse rod hole). A movable connection is formed. Positioning rings are fixed to the lever base shaft Q3 on both outer sides of the transverse rod hole. The positioning rings are used to prevent the lever frame Q2 from moving forward and backward. The front and rear ends of the lever base shaft Q3 are fixedly connected to the corresponding front frame B and rear frame C with screws. The lever base shaft Q3 forms a crossbar hanging shaft. The front end of the lever frame Q2 is movably connected to the telescopic rod of the longitudinal lifting cylinder Q4 (that is, a round crossbar shaft is welded and fixed to the front end of the lever frame Q2, and a through-shaft ring is welded and fixed to the bottom end of the telescopic rod of the longitudinal lifting cylinder Q4. The crossbar shaft passes through the through-shaft ring and the two form a movable connection). The longitudinal lifting cylinder Q4 pushes and pulls one end of the lever frame Q2 to lift and lower through its own telescopic rod, thereby lifting and lowering the other end. The fabric stacking plate frame Q1 rises and falls with the end of the lever frame Q2, and descends to flatten the fabric pieces, fold them tightly, and empty them. Under normal conditions, the fabric stacking plate frame Q1 is raised; the right side frame S is fixedly connected to the right end of the front frame B and the rear frame C, and the longitudinal lifting cylinder Q4 is fixed to the inner wall of the right side frame S with screws; the longitudinal lifting cylinder Q4 is connected to the factory's own air source pipeline through the longitudinal cylinder air source control valve Q5 to obtain blowing air pressure and suction air pressure.

[0055] The fabric stacking and flattening device Q is a procedure that continues working after the previous fabric stacking and folding process is completed. After the front flattening plate I1, rear flattening plate I2, front auxiliary pressure rod N2, and rear auxiliary pressure rod O2 retract (disengage) from the folded fabric stack, the controller A controls the longitudinal cylinder air source control valve Q5 to close the blowing valve and open the suction valve. The telescopic rod of the longitudinal lifting cylinder Q4 retracts inward. Based on the lever base axis Q3, using the lever principle, the front end of the lever frame Q2 is raised while the rear end is lowered. The fabric stacking pressure plate frame Q1 lowers synchronously, and the fabric stacking pressure plate frame Q1 presses down on the fabric stack. At the top, the downward pressure is 5 kg to 10 kg. The fabric stack is pressed down and emptied, and flattened to prevent the fabric stack from rebounding and automatically flipping / loosening due to being too high or too thick. Thus, a whole piece is formed, and the overall shape is stable. Then, the controller A controls the air source control valve Q5 of the longitudinal cylinder to open the blowing valve and close the suction valve. The telescopic rod of the longitudinal lifting cylinder Q4 extends. With the lever base shaft Q3 as the base point, the front end of the lever frame Q2 descends and the rear end rises. The fabric stack pressure plate frame Q1 rises simultaneously and is lifted off the top of the fabric stack.

[0056] Then, controller A will control the next step of the program.

[0057] Further: A fabric stacking and compression device R is provided near the end of the right section of the fabric support conveyor belt assembly F; the fabric stacking and compression device R includes a front side panel frame R1, a rear side panel frame R2, a support plate device R3, a cylinder gantry frame R4, a fabric stacking and compression cylinder R5, a fabric stacking and compression plate R6, a fabric detection signal sensor R7, and a compression cylinder air source control valve R8. The fabric stacking and compression cylinder R5 is connected to the compression cylinder air source control valve R8 through an air pipe, and the compression cylinder air source control valve R8 is connected to the controller A through an electric wire; the fabric stacking and compression cylinder R5 is connected to the factory's own air source pipeline network through the compression cylinder air source control valve R8 to obtain blowing air pressure and suction air pressure. The supporting plate device R3 and the fabric stack compression plate R6 are preferably horizontally arranged, with uniform clamping pressure. The bottom length and width of the fabric stack compression plate R6 are greater than the length and width of the fabric stack being pressed. The length of the fabric stack compression plate R6 is 40 cm to 60 cm. The width of the fabric stack compression plate R6 is 40 cm to 60 cm. Guide rod positioning holes R9 are provided on the cylinder gantry R4 on both sides of the fabric stack compression cylinder R5. Compression plate positioning rods R10 are passed through the guide rod positioning holes R9. The bottom end of the compression plate positioning rod R10 is fixedly connected to the top of the fabric stack compression plate R6. Since the fabric stack is soft, the extension rod of the fabric stack compression cylinder R5 exerts a large pressure when pressing down on the fabric stack. If the force on one side of the fabric stack compression plate R6 is uneven, the compression plate positioning rod R10 plays a role in balancing the pressure and preventing the fabric stack compression plate R6 from pressing the fabric stack crookedly. The compression cylinder air source control valve R8 is a solenoid valve.

[0058] The front wall panel frame R1 and the rear wall panel frame R2 are located on the front and rear outer sides of the fabric support conveyor belt assembly F, respectively. A support plate device R3 is fixedly connected between the front wall panel frame R1 and the rear wall panel frame R2. The support plate device R3 is horizontally connected to the middle space F2, and its top plate surface is close to the opposite side of the upper belt assembly F1. The top of the support plate device R3 is flat. A cylinder gantry frame R4 is fixedly connected between the front wall panel frame R1 and the rear wall panel frame R2 with bolts. A fabric stacking compression cylinder R5 is vertically fixedly connected to the middle of the cylinder gantry frame R4 with bolts. The bottom telescopic rod end of the fabric stacking compression cylinder R5 is fixedly connected to the fabric stacking compression plate R6 with screws. A fabric detection signal sensor R7 is fixedly connected to the outer side of the middle of the cylinder gantry frame R4 with screws. The fabric detection signal sensor R7 is connected to the controller A through a data cable. The fabric detection signal sensor R7 detects the fabric output from the fabric support conveyor belt assembly F with its head facing downward. Under normal conditions, the fabric compression plate R6 is lifted by the inward retraction of the fabric compression cylinder R5, and there is space between the fabric compression plate R6 and the fabric support conveyor belt assembly F to allow the fabric to pass through; the height between the fabric compression plate R6 and the fabric support conveyor belt assembly F is 15 cm to 25 cm.

[0059] This fabric stacking and compression device R is a two-stage compression system. The front flattening plate I1, rear flattening plate I2, front auxiliary pressure rod N2, and rear auxiliary pressure rod O2 retract (disengage) from the folded fabric stack and no longer contact it. This fabric stacking and compression device R continues the operation of the previous fabric stacking and flattening / emptying device Q. After the fabric stacking and flattening / emptying device Q completes its operation, the controller A controls the motor drive device D to continue rotating. The motor drive device D drives the left conveyor belt shaft sleeve device E to rotate. The fabric support conveyor belt assembly F rotates with the left conveyor belt shaft sleeve device E, and the right conveyor belt shaft sleeve device G rotates accordingly. Thus, the fabric support conveyor belt assembly F... The conveyor belt assembly F rotates from left to right; the fabric piece detection signal sensor R7 continuously feeds back signals to the controller A; since the fabric piece support conveyor belt assembly F rotates from left to right, the fabric piece stack is conveyed from left to right. The fabric piece stack passes between the support plate device R3 and the fabric piece compression plate R6. When the fabric piece stack is being conveyed, once the front of the fabric piece stack is captured and detected by the fabric piece detection signal sensor R7, a feedback signal is sent to the controller A, which is considered as the fabric piece stack being conveyed to the designated position. Then, the controller A controls the motor drive device D to stop rotating. The left conveyor belt shaft sleeve device E, the right conveyor belt shaft sleeve device G, and the fabric piece support conveyor belt... When component F stops rotating, the fabric stack stops conveying and remains stationary, with the middle section of the fabric stack resting precisely between the support plate device R3 and the fabric stack compression plate R6. Then, controller A controls the air supply control valve R8 of the compression cylinder to open the blowing valve and close the suction valve. The telescopic rod of the fabric stack compression cylinder R5 descends, the compression plate positioning rod R10 descends synchronously, and the fabric stack compression plate R6 descends synchronously to press down on the fabric stack. The fabric stack is supported by the bottom support plate device R3, and the support plate device R3 and the fabric stack compression plate R6 clamp the fabric stack. The upper belt component F1 is also clamped at the same time, with a clamping force of 7 kg to 15 kg and a clamping time of 3 to 5 seconds. After compression, controller A controls the air source control valve R8 of the compression cylinder to close the blowing valve and open the suction valve. The telescopic rod of the fabric stack compression cylinder R5 is raised, the compression plate positioning rod R10 rises synchronously, and the fabric stack compression plate R6 rises synchronously to disengage from the lowered fabric stack, completing the compression process. In this way, the internal air of the fabric stack is completely emptied for the second time, and the fabric stack is flattened and shaped into a square block shape. It is square, simple, beautiful, small in size, with a smooth and wrinkle-free surface, and clear fold lines of each fold segment. After compression by this fabric stack compression device R, the next step is to package the folded fabric stack with packaging bags, affix labels and markings, and then sell it on the market.

[0060] Preferably, the middle part of the fabric compression plate R6 is provided with an upper signal transmission through hole R11; the plate of the supporting plate device R3 is provided with a lower signal transmission through hole R12.

[0061] The fabric detection signal sensor R7 includes an upper signal transmitter R71 and a lower signal reflector R72. The upper signal transmitter R71 is connected to the controller A via a data cable and is fixedly connected to the outer side of the middle of the cylinder gantry R4 with a bracket and screws, located above the upper belt assembly F1, with the signal transmitting electrode of the upper signal transmitter R71 facing downwards. The lower signal reflector R72 is fixedly connected to the front frame B with a bracket and screws, extending into and arranged below the plate of the supporting plate device R3. The upper signal transmitter R71, the upper signal transmitting through hole R11, the cutout gap F4, the lower signal transmitting through hole R12, and the lower signal reflector R72 are vertically aligned. The upper signal transmitter R71 transmits light-sensing signals to the lower signal reflector R72 through the upper signal transmitting through hole R11, the cutout gap F4, and the lower signal transmitting through hole R12. Under normal conditions, the light-sensing signal emitted by the upper signal transmitter R71 is reflected back to the upper signal transmitter R71 through the lower signal reflector R72, indicating no fabric touch signal. When the fabric stack is conveyed from left to right from the top of the upper belt assembly F1, and the transmission signal is cut off at the front of the fabric stack, the light-sensing signal of the upper signal transmitter R71 cannot be transmitted to the lower signal reflector R72, and the lower signal reflector R72 cannot reflect the light-sensing signal either. The controller A considers the signal of the fabric stack passing through the upper signal transmitter R71 as being captured, and considers the fabric stack to have reached the designated position. The specific installation structure and component composition of the fabric detection signal sensor R7 are relatively reasonable and the detection is accurate. Of course, the fabric detection signal sensor R7 can also be an infrared sensor, a light sensor, a photoelectric switch, a micro switch, or a touch switch, etc. There are no restrictions here, as long as the detection function is achieved.

[0062] Preferably, an air vent R13 is provided on the body of the fabric compression plate R6. When compressing the fabric sheets, air can be discharged through the air vent R13, making air discharge faster, more efficient, and more effective.

[0063] Preferably, the supporting plate device R3 includes a front wall panel seat R31, a rear wall panel seat R32, and a top supporting plate R33. The front wall panel seat R31 is bolted to the inner wall of the front side wall panel frame R1, and the rear wall panel seat R32 is bolted to the inner wall of the rear side wall panel frame R2. The front and rear ends of the top supporting plate R33 are bolted to the top of the corresponding front wall panel seat R31 and rear wall panel seat R32. The top of the top supporting plate R33 is flat, and the top surface of the top supporting plate R33 is close to the reverse side of the upper belt assembly F1. The distance between the top supporting plate R33 and the upper belt assembly F1 is 1 cm to 2 cm. The top supporting plate R33 is preferably horizontally arranged. Its structure is firmly connected, stable, and has good load-bearing capacity. The supporting plate device R33 is made of metal.

[0064] Further: The first pressure bar flipping device L includes at least a first front rotating shaft support L2, a first flipping shaft L3, a first rotating shaft gear L4, a first rack device L5, a first flipping cylinder L6, a first rear rotating shaft support L7, and a first cylinder air source control valve L8. The first cylinder air source control valve L8 is connected to the controller A via an electric wire. The first flipping pressure bars L1 are fixedly welded to the first flipping shaft L3 in the same arrangement. The first front rotating shaft support L2 is located near the front frame B, and the first rear rotating shaft support L7 is located near the rear frame C. The front and rear ends of the first flipping shaft L3 movably traverse the first front rotating shaft. The top of the support seat L2 and the first rear rotating shaft support seat L7 (both the top of the first front rotating shaft support seat L2 and the first rear rotating shaft support seat L7 are provided with shaft holes, and the front and rear ends of the first tilting shaft L3 can be inserted into the shaft holes to form a movable connection, and lubricating oil can be added to the shaft holes to improve the lubrication effect; bearings can be installed in the shaft holes to improve the sliding performance), the front end of the first tilting shaft L3 is inserted and clamped to fix the first rotating shaft gear L4, the gear of the first rotating shaft gear L4 is meshed with the gear of the first rack device L5, and the first rack device L5 and the cloth support conveyor belt assembly F are arranged in the same direction and are preferably arranged horizontally; The first rack and pinion device L5 is bolted to the telescopic rod end of the first tilting cylinder L6; the telescopic rod of the first tilting cylinder L6 drives the first rack and pinion device L5, the first rotating shaft gear L4, and the first tilting shaft L3 to move, causing the first tilting pressing strip L1 to tilt, fold, and press the fabric sheet towards the top of the fabric flat pressing plate device I; the first tilting shaft L3 is located on the left side near the supporting platform H; the first front rotating shaft support L2 is bolted to the first tilting cylinder L6; the first cylinder air source control valve L8 is a solenoid valve; the air source for the first tilting cylinder L6 is connected to the factory's own air source pipeline through the first cylinder air source control valve L8. The first tilting shaft L3 is secured with corresponding first front limiting anti-detachment rings L31 and L32 at its front and rear ends. The first front limiting anti-detachment rings L31 and L32 are respectively close to the inner walls of the corresponding first front rotating shaft support L2 and first rear rotating shaft support L7. The first tilting shaft L3 is prevented from detaching by the first front limiting anti-detachment rings L31 and L32. There is a bend between the root of the first tilting pressure strip L1 and the first tilting shaft L3, which is used to adjust the height difference between the first tilting shaft L3 and the supporting platform H.

[0065] Under normal conditions, the first flipping pressure strip L1 is flatly arranged in the middle layer space F2. During operation, controller A controls the opening of the blowing valve and the closing of the suction valve of the first cylinder air source control valve L8, allowing air pressure to enter the first flipping cylinder L6. Its telescopic rod extends, the first rack and pinion device L5 moves to the left, while the first rotating shaft gear L4 and the first flipping shaft L3 rotate in the opposite direction, i.e., clockwise and rightward. The first flipping pressure strip L1 thus flips clockwise, passing through the perforation gap F4 from bottom to top. The first flipping pressure strip L1 lifts the fabric stack from the bottom and quickly folds (flips) the fabric stack. Accurately, the flipping degree of the first flipping pressure strip L1 is 0 degrees to 180 degrees. The telescopic rod of the first flipping cylinder L6, when fully extended, allows the first flipping pressure strip L1 to flip 180 degrees. When the telescopic rod of L6 retracts fully, it allows the first flipping pressure strip L1 to rotate 180 degrees during its return stroke. After the fabric is folded (flipped), the controller A controls the first cylinder air source control valve L8 to close the blowing valve and open the suction valve. The air pressure of the first flipping cylinder L6 is sucked away, its telescopic rod retracts, and the first rack device L5 moves to the right. Meanwhile, the first rotating shaft gear L4 and the first flipping shaft L3 rotate in the opposite direction relative to the first rack device L5, that is, they rotate to the left and counterclockwise. The first flipping pressure strip L1 thus flips counterclockwise. As a result, the first flipping pressure strip L1 flips back to its return stroke and finally resets in the middle layer space F2, waiting for the next cycle of flipping. The above describes the specific structure and component connection of the first pressure strip flipping device L. Its structure is reasonably designed, firmly installed, and flips stably, flexibly, quickly, and efficiently during operation.

[0066] The first rack device L5 includes a first rack seat L51 and a first transverse rack L52. The top of the first rack seat L51 is fixedly connected to the first transverse rack L52 with bolts. The first rack seat L51 is fixedly connected to the telescopic rod end of the first tilting cylinder L6 with bolts. The top teeth of the first transverse rack L52 are meshed with the first rotating shaft gear L4. When the telescopic rod of the first tilting cylinder L6 moves in extension and retraction, the first rack seat L51 and the first transverse rack L52 move synchronously. The first transverse rack L52 drives the first rotating shaft gear L4 to rotate. The rotating structure is designed in a reasonable way.

[0067] The second pressure bar flipping device M includes at least a second front rotating shaft support M2, a second flipping shaft M3, a second rotating shaft gear M4, a second rack device M5, a second flipping cylinder M6, a second rear rotating shaft support M7, and a second cylinder air source control valve M8. The second cylinder air source control valve M8 is connected to the controller A via an electric wire. The second flipping pressure bars M1 are fixedly connected to the second flipping shaft M3 in the same arrangement. The second front rotating shaft support M2 is located near the front frame B, and the second rear rotating shaft support M7 is located near the rear frame C. The front and rear ends of the second flipping shaft M3 movably pass through the tops of the second front rotating shaft support M2 and the second rear rotating shaft support M7 (both the tops of the second front rotating shaft support M2 and the second rear rotating shaft support M7 have shaft holes, and the front and rear ends of the second flipping shaft M3 can just pass through the shaft holes, thus forming a movable connection, allowing lubrication to be added to the shaft holes). Oil improves lubrication; bearings can be installed in the shaft hole to improve sliding performance. The front end of the second flipping shaft M3 is threaded and clamped with the second rotating shaft gear M4. The gear of the second rotating shaft gear M4 meshes with the gear of the second rack device M5. The second rack device M5 and the fabric support conveyor belt assembly F are arranged in the same direction and are preferably arranged horizontally. The second rack device M5 is fixedly connected to the telescopic rod end of the second flipping cylinder M6 with bolts. The telescopic rod of the second flipping cylinder M6 drives the second rack device M5, the second rotating shaft gear M4, and the second flipping shaft M3 to move, so that the second flipping pressure strip M1 flips, folds, and presses the fabric towards the top of the fabric flat pressing plate device I. The first flipping shaft L3 is located on the right side near the support platform H. The first flipping shaft L3 and the second flipping shaft M3 rotate clockwise and counterclockwise. The second front rotating shaft support M2 is fixedly connected to the second flipping cylinder M6 with bolts. There is a bend between the root of the second flipping strip M1 and the second flipping shaft M3, which is used to adjust the height difference between the second flipping shaft M3 and the supporting platform H.

[0068] The second cylinder air source control valve M8 is a solenoid valve; the air source of the second tilting cylinder M6 is obtained by connecting the second cylinder air source control valve M8 to the factory's own air source pipeline to obtain blowing air pressure and suction air pressure; the front and rear ends of the second tilting shaft M3 are fixed with corresponding second front limit anti-detachment rings M31 and second rear limit anti-detachment rings M32, which are respectively close to the inner walls of the corresponding second front rotating shaft support M2 and second rear rotating shaft support M7. The second tilting shaft M3 is prevented from detaching by the second front limit anti-detachment rings M31 and second rear limit anti-detachment rings M32; there is a bend between the root of the second tilting pressure strip M1 and the second tilting shaft M3, which is used to adjust the height tilting difference between the second tilting shaft M3 and the support platform H.

[0069] Under normal conditions, the second flipping pressure strip M1 is arranged flat in the middle layer space F2. During operation, controller A controls the second cylinder air source control valve M8 to open the blowing valve and close the suction valve, allowing air pressure to enter the second flipping cylinder M6. Its telescopic rod extends, the second rack device M5 moves to the right, while the second rotating shaft gear M4 and the second flipping shaft M3 rotate in the opposite direction, i.e., to the left and counterclockwise. The second flipping pressure strip M1 thus flips counterclockwise, passing through the perforation gap F4 from bottom to top. The second flipping pressure strip M1 lifts the fabric stack from the bottom and quickly folds (flips) the fabric stack. Accurately, the flipping degree of the second flipping pressure strip M1 is 0 degrees to 180 degrees. The telescopic rod of the second flipping cylinder M6, when fully extended, allows the second flipping pressure strip M1 to flip 180 degrees. When the telescopic rod of M6 retracts fully, it allows the second flipping pressure strip M1 to rotate 180 degrees during its return stroke. After the fabric is folded (flipped), controller A controls the second cylinder air source control valve M8 to close the blowing valve and open the suction valve. The air pressure in the second flipping cylinder M6 is sucked away, its telescopic rod retracts, and the second rack device M5 moves to the left. Meanwhile, the second rotating shaft gear M4 and the second flipping shaft M3 rotate in the opposite direction relative to the second rack device M5, that is, they rotate to the right and clockwise. The second flipping pressure strip M1 thus flips clockwise. As a result, the second flipping pressure strip M1 flips back to its return stroke and finally returns to its original position in the middle layer space F2, waiting for the next cycle of flipping. The above describes the specific structure and component connections of the second pressure strip flipping device M. Its structure is reasonably designed, firmly installed, and flips stably, flexibly, quickly, and efficiently during operation.

[0070] The second rack device M5 includes a second rack seat M51 and a second transverse rack M52. The top of the second rack seat M51 is fixedly connected to the second transverse rack M52 with bolts. The second rack seat M51 is fixedly connected to the telescopic rod end of the second tilting cylinder M6 with bolts. The top teeth of the second transverse rack M52 are meshed with the second rotating shaft gear M4. When the telescopic rod of the second tilting cylinder M6 moves in extension and retraction, the second rack seat M51 and the second transverse rack M52 move synchronously. The second transverse rack M52 drives the second rotating shaft gear M4 to rotate. The rotating structure is designed in a reasonable way.

[0071] Furthermore: The first front pivot support L2, the first rear pivot support L7, the second front pivot support M2, and the second rear pivot support M7 are movably connected to a tilting shaft spacing adjustment device P; the tilting shaft spacing adjustment device P is connected to the front frame B and the rear frame C.

[0072] The tilting shaft spacing adjustment device P includes a spacing adjustment handwheel P1, a main spacing rotation adjustment shaft P2, a main shaft front bevel gear P3, a main shaft front axle seat P4, a front cylinder spacing adjustment threaded rod P5, a front left bevel gear P6, a front left bearing seat P7, a front right bearing seat P8, a front positioning sliding device P9, a main shaft rear bevel gear P10, a main shaft rear axle seat P11, a rear cylinder spacing adjustment threaded rod P12, a rear left bevel gear P13, a rear left bearing seat P14, a rear right bearing seat P15, and a rear positioning sliding device P16; the front cylinder spacing adjustment threaded rod P5, the rear cylinder spacing adjustment threaded rod P16, and the rear cylinder spacing adjustment threaded rod P17 are all part of the main shaft. Preferably, the threaded rod P12 for adjusting the distance has threads only in the middle section, and no threads at the left and right ends. This prevents the rod connected to the front left bearing seat P7, front right bearing seat P8, rear left bearing seat P14, and rear right bearing seat P15 from rubbing against the threads. The main distance rotary adjustment shaft P2 is arranged laterally, and the front cylinder distance adjustment threaded rod P5 and the rear cylinder distance adjustment threaded rod P12 are arranged coaxially with the fabric support conveyor belt assembly F. The included angle between the main distance rotary adjustment shaft P2 and the front cylinder distance adjustment threaded rod P5 and the rear cylinder distance adjustment threaded rod P12 is 90 degrees.

[0073] The front spindle housing P4, the front left bearing housing P7, and the front right bearing housing P8 are fixedly connected to the front frame B with screws, and the rear spindle housing P11, the rear left bearing housing P14, and the rear right bearing housing P15 are fixedly connected to the rear frame C with screws.

[0074] The pitch adjustment handwheel P1 is fixedly connected to the front end of the main pitch rotary adjustment shaft P2 with a screw assembly. The front and rear end sections of the main pitch rotary adjustment shaft P2 can just pass through the corresponding front spindle seat P4 and rear spindle seat P11 and form a movable connection with them (that is, the front spindle seat P4 and the rear spindle seat P11 are both provided with through holes, and the front and rear end sections of the main pitch rotary adjustment shaft P2 can just pass through the through holes of the corresponding front spindle seat P4 and the rear spindle seat P11 and form a movable connection with them); the front and rear end sections of the main pitch rotary adjustment shaft P2 are threaded and clamped to the corresponding front spindle bevel gear P3 and rear spindle bevel gear P10.

[0075] The left and right end sections of the front cylinder spacing adjusting threaded rod P5 can just pass through the corresponding front left bearing seat P7 and front right bearing seat P8 and form a movable connection with them (that is, the front left bearing seat P7 and front right bearing seat P8 are both provided with through holes, and the front and rear end sections of the front cylinder spacing adjusting threaded rod P5 can just pass through the through holes of the corresponding front left bearing seat P7 and front right bearing seat P8 and form a movable connection with them). The first front shaft support L2 is connected to the front cylinder spacing adjusting threaded rod P5 with a forward thread, and the second front shaft support M2 is connected to the front cylinder spacing adjusting threaded rod P5 with a reverse thread (the bottom of the first front shaft support L2 and the second front shaft support M2 are both provided with corresponding threaded holes, the first front shaft support L2 is a positive thread hole, and the second front shaft support M2 is a reverse thread hole, and the front cylinder spacing adjusting threaded rod P5 passes through and is screwed to the first front shaft support L2 and the second front shaft support). (A threaded connection is formed in the threaded hole of M2); the front bevel gear P3 of the main shaft meshes with the front left bevel gear P6; the bottom of the front left bearing housing P7 and the front right bearing housing P8 are slidably connected to the sliding component of the front positioning sliding device P9, and the fixed component of the front positioning sliding device P9 is fixedly connected to the front frame B; the front positioning sliding device P9 consists of a sliding component and a fixed component, the sliding component is a snap-fit ​​component, and the fixed component is a guide rail; the sliding component and the fixed component of the front positioning sliding device P9 are slidably connected by a dovetail groove structure, and the sliding component of the front positioning sliding device P9 slides left and right based on the fixed component of the front positioning sliding device P9. The front left bearing housing P7 and the front right bearing housing P8 are fixedly connected to the sliding component of the front positioning sliding device P9 with screws. Therefore, the front left bearing housing P7 and the front right bearing housing P8 slide left and right based on the fixed component of the front positioning sliding device P9. The front positioning sliding device P9 is a positioning sliding guide rail.

[0076] The left and right end sections of the rear cylinder spacing adjusting threaded rod P12 can just pass through the corresponding rear left bearing seat P14 and rear right bearing seat P15 and form a movable connection with them (that is, the rear left bearing seat P14 and rear right bearing seat P15 are both provided with through holes, and the front and rear end sections of the rear cylinder spacing adjusting threaded rod P12 can just pass through the through holes of the corresponding rear left bearing seat P14 and rear right bearing seat P15 and form a movable connection with them); the first rear rotating shaft support L7 and The rear cylinder spacing adjusting threaded rod P12 is connected by a forward thread, and the second rear shaft support M7 is connected to the rear cylinder spacing adjusting threaded rod P12 by a reverse thread (both the first rear shaft support L7 and the second rear shaft support M7 have corresponding threaded holes at their bottoms; the first rear shaft support L7 has a positive thread hole, and the second rear shaft support M7 has a reverse thread hole. The rear cylinder spacing adjusting threaded rod P12 passes through and is screwed onto the first rear shaft support L7 and the second rear shaft support M7). (A threaded connection is formed in the threaded hole); the rear bevel gear P10 of the main shaft meshes with the rear left bevel gear P13; the bottom of the rear left bearing housing P14 and the rear right bearing housing P15 are slidably connected to the sliding component of the rear positioning sliding device P16, and the fixed component of the rear positioning sliding device P16 is fixedly connected to the rear frame C; the rear positioning sliding device P16 consists of a sliding component and a fixed component, the sliding component is a snap-fit ​​component, and the fixed component is a guide rail; the sliding component and the fixed component of the rear positioning sliding device P16 are slidably connected by a dovetail groove structure, and the sliding component of the rear positioning sliding device P16 slides left and right based on the fixed component of the rear positioning sliding device P16. The rear left bearing housing P14 and the rear right bearing housing P15 are fixedly connected to the sliding component of the rear positioning sliding device P16 with screws. Therefore, the rear left bearing housing P14 and the rear right bearing housing P15 slide left and right based on the fixed component of the rear positioning sliding device P16. The rear positioning sliding device P16 is a positioning sliding guide rail.

[0077] Adjustment Example 1: In use, when the spacing adjustment handwheel P1 is rotated counterclockwise by hand, the main spacing adjustment shaft P2, the main shaft front bevel gear P3, and the main shaft rear bevel gear P10 simultaneously rotate counterclockwise. The main shaft front bevel gear P3 and the main shaft rear bevel gear P10 synchronously drive the corresponding front left bevel gear P6 and rear left bevel gear P13 to rotate in the opposite direction (clockwise). The front cylinder spacing adjustment threaded rod P5, the front left bevel gear P6, the rear cylinder spacing adjustment threaded rod P12, and the rear left bevel gear P13 simultaneously rotate clockwise. The rotation direction of the main spacing adjustment shaft P2 is exactly opposite to that of the front cylinder spacing adjustment threaded rod P5 and the rear cylinder spacing adjustment threaded rod P12. The spacing between the first front shaft support L2 and the second front shaft support M2 decreases. When the two pivot supports move closer together, the distance between the first rear pivot support L7 and the second rear pivot support M7 decreases, and the two pivot supports move closer together; the distance between the first flipping cylinder L6 and the second flipping cylinder M6 decreases, and the two flipping cylinders move closer together; the distance between the first flipping shaft L3 and the second flipping shaft M3 decreases, and the two flipping shafts move closer together; the distance between the first flipping pressure strip L1 and the second flipping pressure strip M1 decreases. When flipping and folding the fabric, the size of the folded fabric (e.g., width) decreases, which is used to adjust the size of the folded fabric within a small range. The adjustment range is generally 0-10 cm. It is used to adjust the size of the folded fabric to suit the required size. The adjustment is synchronous, accurate, flexible, and the adjustment size is uniform and standardized. The adjustment is completed in one step, with high efficiency and no alignment required.

[0078] Adjustment Example 2: In use, when the spacing adjustment handwheel P1 is rotated clockwise by hand, the main spacing adjustment shaft P2, the main shaft front bevel gear P3, and the main shaft rear bevel gear P10 simultaneously rotate clockwise. The main shaft front bevel gear P3 and the main shaft rear bevel gear P10 synchronously drive the corresponding front left bevel gear P6 and rear left bevel gear P13 to rotate in the opposite direction (counterclockwise). The front cylinder spacing adjustment threaded rod P5, the front left bevel gear P6, the rear cylinder spacing adjustment threaded rod P12, and the rear left bevel gear P13 simultaneously rotate counterclockwise. The rotation direction of the main spacing adjustment shaft P2 is exactly opposite to that of the front cylinder spacing adjustment threaded rod P5 and the rear cylinder spacing adjustment threaded rod P12. The distance between the first front shaft support L2 and the second front shaft support M2 increases, and the two shafts... The distance between the support seats increases, the distance between the first rear rotating shaft support seat L7 and the second rear rotating shaft support seat M7 increases, and the distance between the two rotating shaft support seats increases; the distance between the first flipping cylinder L6 and the second flipping cylinder M6 increases, and the distance between the two flipping cylinders increases; the distance between the first flipping shaft L3 and the second flipping shaft M3 increases, and the distance between the two flipping shafts increases; the distance between the first flipping pressure strip L1 and the second flipping pressure strip M1 increases. When flipping and folding the fabric, the size of the folded fabric stack (e.g., width) increases, which is used to adjust the size of the folded fabric stack within a small range. The adjustment range is generally 0-10 cm. It is used to adjust the size of the folded fabric stack to suit the required size. The adjustment is synchronous, accurate, flexible, and the adjustment size is uniform and standardized. The adjustment is completed in one step, with high adjustment efficiency and no alignment required.

[0079] Further: The pressure plate lifting cylinder device J includes a cylinder base frame J1, a pressure plate lifting cylinder J2, a pressure plate cylinder air source control valve J3, a common lifting crossbeam J4, a front lateral telescopic cylinder J5, a front lifting vertical frame J6, a rear lateral telescopic cylinder J7, a rear lifting vertical frame J8, and a crossbeam cylinder air source control valve J9. The pressure plate lifting cylinder J2 is connected to the factory's own air source pipeline network through the pressure plate cylinder air source control valve J3 to obtain blowing and suction air pressure; the front lateral telescopic cylinder J5 and the rear lateral telescopic cylinder J7 are connected to the factory's own air source pipeline network through the crossbeam cylinder air source control valve J9 to obtain blowing and suction air pressure; there are two pressure plate lifting cylinders J2, distributed at both ends of the common lifting crossbeam J4, which provides better support capacity, more stable vertical lifting, and more balanced / stable front and rear sections of the common lifting crossbeam J4;

[0080] The cylinder base frame J1, the pressure plate lifting cylinder J2, the common lifting crossbeam J4, the front transverse telescopic cylinder J5, and the rear transverse telescopic cylinder J7 are located at the bottom of the fabric support conveyor belt assembly F.

[0081] The cylinder base J1 is bolted to the front and rear ends of the corresponding front frame B and rear frame C for fixing the cylinder. A pressure plate lifting cylinder J2 is vertically bolted to the cylinder base J1. The pressure plate lifting cylinder J2 is connected to the pressure plate cylinder air source control valve J3 via an air pipe. The pressure plate cylinder air source control valve J3 is connected to the controller A via an electrical wire. A common lifting crossbeam J4 is bolted to the top telescopic rod end of the pressure plate lifting cylinder J2. The common lifting crossbeam J4 is made of slatted iron metal. The length is greater than the width of the fabric supporting the conveyor belt assembly F. The top of the common lifting beam J4 is bolted with a front lateral telescopic cylinder J5 and a rear lateral telescopic cylinder J7. The front lateral telescopic cylinder J5 and the rear lateral telescopic cylinder J7 are arranged in opposite directions. The telescopic rod of the front lateral telescopic cylinder J5 extends forward, and the telescopic rod of the rear lateral telescopic cylinder J7 extends backward. The front lateral telescopic cylinder J5 and the rear lateral telescopic cylinder J7 are connected to the beam cylinder air source control valve J9 through air pipes. The beam cylinder air source control valve J9 is connected to the controller A through wires.

[0082] The telescopic rod end of the front lateral telescopic cylinder J5 is fixedly connected to the bottom of the front lifting vertical frame J6 with screws, and the top of the front lifting vertical frame J6 is fixedly connected to the outer side of the front flat pressure plate I1 with screws; the telescopic rod end of the rear lateral telescopic cylinder J7 is fixedly connected to the bottom of the rear lifting vertical frame J8 with screws, and the top of the rear lifting vertical frame J8 is fixedly connected to the outer side of the rear flat pressure plate I2 with screws; the front lifting vertical frame J6 and the rear lifting vertical frame J8 are set on the corresponding front and rear outer sides of the fabric support conveyor belt assembly F; the above describes the specific structure and component connections for the left and right opening and closing, and its structural design is reasonable.

[0083] Lifting and Adjustment Process: Under normal conditions, controller A controls the opening of the blowing valve and closing of the suction valve of the pressure plate cylinder air source control valve J3. Air pressure enters the pressure plate lifting cylinder J2, causing its extension rod to lift the common lifting beam J4. The front lateral extension cylinders J5 and J7 rise accordingly, and the front lifting vertical frame J6 and J8 rise synchronously. The front flat pressure plate I1 and rear flat pressure plate I2 are simultaneously lifted, as are the front top-mounted cylinder N1 and rear top-mounted cylinder O1. This creates space between the front flat pressure plate I1 and rear flat pressure plate I2 and the upper belt assembly F1 (fabric sheet support conveyor belt assembly F), ensuring normal fabric sheet transport. The height of the space between the upper belt assembly F1 and the front flat pressure plate I1 and rear flat pressure plate I2 is 5 cm to 10 cm, allowing the fabric sheet stack to be transported from the top of the upper belt assembly F1. When controller A controls the pressure plate... The air supply control valve J3 closes its blowing valve and opens its suction valve. The pressure plate lifting cylinder J2 draws air in, causing its telescopic rod to retract and pull down the common lifting beam J4. The front transverse telescopic cylinders J5 and J7 then descend, and the front lifting vertical frame J6 and J8 descend synchronously. The front flat pressure plate I1 and rear flat pressure plate I2 are simultaneously pulled down, pressing down from the top of the fabric stack. Then, the fabric is sandwiched between the supporting platform H and the front flat pressing plate I1 and the rear flat pressing plate I2, flattening and smoothing the fabric surface. The upper belt component F1 will also be sandwiched and pressed together, waiting to be folded. The front flat pressing plate I1 and the rear flat pressing plate I2 form a U-shaped fork. The above is the specific structure and component connection of the lifting mechanism. Its structure is reasonably designed, and the cylinder lifting speed is fast and the working efficiency is high. The lifting time is 1 to 2 seconds, and the lowering time is 1 to 2 seconds, usually 1 second.

[0084] Front and rear opening and closing adjustment process: Under normal conditions, controller A controls the air source control valve J9 of the crossbeam cylinder to close the blowing valve and open the suction valve. The telescopic rods of the rear transverse telescopic cylinder J7 and the rear transverse telescopic cylinder J7 retract inward to pull and close the front lifting vertical frame J6 and the rear lifting vertical frame J8. The front flat pressure plate I1 and the rear flat pressure plate I2 are placed on the top of the upper belt assembly F1 (fabric sheet support conveyor belt assembly F). In order to allow the front flat pressure plate I1 and the rear flat pressure plate I2 to press and clamp the fabric sheet stack from the top of the fabric sheet stack, it is in the state of the fabric sheet stack to be clamped.

[0085] When controller A controls the opening of the blowing valve and closing of the suction valve of the crossbeam cylinder air source control valve J9, the extension rods of the rear lateral telescopic cylinder J7 extend to open the front lifting vertical frame J6 and the rear lifting vertical frame J8. The front top-mounted cylinder N1, the rear top-mounted cylinder O1, the front flat pressure plate I1, and the rear flat pressure plate I2 retract to the outer side of the corresponding upper belt assembly F1 (fabric sheet supporting conveyor belt assembly F). The front flat pressure plate I1, the rear flat pressure plate I2, and the front auxiliary pressure plate... Rod N2 and rear auxiliary pressure rod O2 retract (disengage) from the folded fabric stack and no longer contact the fabric stack. The fabric stack can then flow with the fabric support conveyor belt assembly F. As a result, controller A controls motor drive device D to continue rotating. Motor drive device D drives left conveyor belt shaft sleeve device E, right conveyor belt shaft sleeve device G, and fabric support conveyor belt assembly F to rotate from left to right, conveying the fabric stack to fabric stack compression device R for secondary compression and folding.

[0086] The cylinders allow for fast opening and closing, resulting in high work efficiency. The opening time is 1-2 seconds, and the closing time is 1-2 seconds, typically 1 second.

[0087] Further: The right side frame S is bolted to the right end of the front frame B and the rear frame C. The right side frame S is bolted to the front wall panel frame R1 and the rear wall panel frame R2. A belt threading hole S1 is provided in the right side frame S, through which the right section of the fabric supporting the conveyor belt assembly F passes through the belt threading hole S1. The inside of the right side frame S is the mechanical operation area, and the outside of the right side frame S is the human operation area. In order to ensure the safety of human operation, a belt threading hole S1 is provided in the right side frame S, through which a part of the right section of the fabric supporting the conveyor belt assembly F passes through the belt threading hole S1 for human operation. The rightmost end of the fabric supporting the conveyor belt assembly F is for receiving folded fabric pieces for product packaging, labeling, boxing, etc.

[0088] Further: The motor transmission device D includes a drive motor D1, a motor gear D2, a motor transmission belt D3, and a rotating shaft gear D4. The drive motor D1 is bolted to the inner wall of the front side panel R1. The motor shaft end of the drive motor D1 is snapped and tightened to fix the motor gear D2. The motor transmission belt D3 is sleeved between the motor gear D2 and the rotating shaft gear D4. The inner surface of the motor transmission belt D3 has teeth to prevent rotational slippage and ensure accurate rotational stroke. Preferably: the drive motor D1 is a servo motor, a motor that includes a gearbox (a complete set of motors including the gearbox), a set of motors with speed change function, or a frequency converter motor, etc.; because the transmission belt cannot be too fast, speed change is required.

[0089] The left conveyor belt shaft sleeve device E includes a left front bearing seat E1, a left conveyor belt shaft E2, and a left rear bearing seat E3. The left front bearing seat E1 and the left rear bearing seat E3 are fixedly connected to the corresponding front frame B and rear frame C with bolts. The front and rear ends of the left conveyor belt shaft E2 pass through the front left front bearing seat E1 and the left rear bearing seat E3.

[0090] The right side frame S is bolted to the right end of the front frame B and the rear frame C. The right side frame S is bolted to the corresponding front wall panel frame R1 and the rear wall panel frame R2.

[0091] The right conveyor belt shaft sleeve device G includes a right front bearing seat G1, a right conveyor belt shaft G2, and a right rear bearing seat G3. The right front bearing seat G1 and the right rear bearing seat G3 are fixedly connected to the corresponding front side panel frame R1 and rear side panel frame R2 with bolts. The front and rear ends of the right conveyor belt shaft G2 pass through the right front bearing seat G1 and the right rear bearing seat G3.

[0092] A fabric support conveyor belt assembly F is fitted between the left conveyor belt shaft E2 and the right conveyor belt shaft G2; the above-mentioned motor drive device D, left conveyor belt shaft fitting device E, and right conveyor belt shaft fitting device G have reasonable structural settings, good fit, and stable operation; the rotation speed of the fabric support conveyor belt assembly F is 10 seconds / meter to 15 seconds / meter.

[0093] During operation, controller A controls the drive motor D1 to work, the motor gear D2 rotates, which drives the motor transmission belt D3 to rotate, the motor transmission belt D3 drives the rotating shaft gear D4 to rotate, the left conveyor belt shaft E2 rotates synchronously, the left conveyor belt shaft E2 synchronously drives the fabric support conveyor belt assembly F to rotate, the right conveyor belt shaft G2 rotates accordingly, and the fabric support conveyor belt assembly F rotates from left to right to convey the fabric stack.

[0094] Further: The supporting platform H includes an upper top plate H1 and a top plate frame H2. The reverse side of the upper top plate H1 is welded to or bolted to the top of the top plate frame H2. The top of the upper top plate H1 is flat and preferably horizontal. The front and rear ends of the top plate frame H2 are fixedly connected to the inner walls of the corresponding front frame B and rear frame C with screws. The upper top plate H1 is rectangular, with a length of 30 cm to 65 cm and a width of 30 cm to 50 cm. The top surface is close to the opposite side of the upper belt assembly F1, but does not contact the upper belt assembly F1; when the fabric flat pressing plate device I presses down, the fabric stack is pressed down, the upper belt assembly F1 has a certain elasticity, the upper belt assembly F1 presses on the top surface of the upper top plate H1, and the fabric stack presses on the top of the upper belt assembly F1. Thus, the fabric flat pressing plate device I and the upper top plate H1 together clamp the upper belt assembly F1 and the fabric stack; this is the specific structure and connection structure of the supporting platform H, and its connection is stable and firm.

[0095] Further: The fabric detection sensor K includes a light emitter K1 and a light reflector K2. The light emitter K1 is connected to the controller A via a data cable. The light emitter K1 is fixedly connected to the front frame B and / or the rear frame C with brackets and screws, located above the upper component F1, with the emitter of the light emitter K1 facing downwards. The light reflector K2 is fixedly connected to the front frame B with brackets and screws, extending into the middle space F2. The light emitter K1 and the light reflector K2 are perpendicularly aligned, and light transmission between the light emitter K1 and the light reflector K2 is achieved through a perforated gap F4. Under normal conditions, the light signal emitted by the light emitter K1 passes through the light reflector K2. 2. The light-emitting transmitter K1 reflects the signal when there is no fabric piece touching it. When the fabric piece is conveyed from the top of the upper belt assembly F1 from left to right, and the front of the fabric piece stack cuts off their transmission signal, the light-sensing signal of the light-emitting transmitter K1 cannot be transmitted to the light-sensing reflector K2, and the light-sensing reflector K2 cannot reflect the light-sensing signal either. The controller A considers the signal of a fabric piece passing through the fabric piece detection sensor K as being captured, and considers the fabric piece stack to have reached the designated position. The specific installation structure and component composition of the fabric piece detection sensor K are relatively reasonable and the detection is accurate. Of course, the fabric piece detection sensor K can also be an infrared sensor, a light sensor, a micro switch, or a touch switch, etc. There are no restrictions here, as long as the detection function is achieved.

Claims

1. A flipping and folding device for a fabric folding machine, comprising a controller (A), a front frame (B), a rear frame (C), a motor drive (D), a left conveyor belt shaft sleeve device (E), a fabric support conveyor belt assembly (F), and a right conveyor belt shaft sleeve device (G), wherein the motor drive (D) is connected to the left conveyor belt shaft sleeve device (E), and the controller (A) is connected to the motor drive (D) via a wire; the fabric support conveyor belt assembly (F) is sleeved and tightened between the left conveyor belt shaft sleeve device (E) and the right conveyor belt shaft sleeve device (G), thereby forming an upper belt assembly (F1) and a lower belt assembly (F3), a middle space (F2) is formed between the upper belt assembly (F1) and the lower belt assembly (F3), and a slotted gap (F4) is opened between the conveyor belts of the fabric support conveyor belt assembly (F), characterized in that: A support platform (H), a fabric flat pressing plate device (I), a pressing plate lifting cylinder device (J), a fabric detection sensor (K), and a first pressing strip flipping device (L) with a first flipping pressing strip (L1) are provided between the middle sections of the front frame (B) and the rear frame (C); there are at least two first flipping pressing strips (L1); the width of the first flipping pressing strip (L1) is smaller than the width of the cutout gap (F4); The support platform (H) is located in the middle section of the fabric support conveyor belt assembly (F), and is arranged horizontally in the middle space (F2). Its front and rear ends are fixedly connected to the corresponding front frame (B) and rear frame (C) walls. The top surface of the support platform (H) is close to the opposite side of the upper belt assembly (F1). The outer side of the fabric flat pressing plate device (I) is fixedly connected to the top of the pressing plate lifting cylinder device (J). The pressing plate lifting cylinder device (J) is used to drive the fabric flat pressing plate device (I) to rise and fall, to spread laterally forward and backward, and to retract. The fabric flat pressing plate device (I) is arranged above the middle section of the upper belt assembly (F1), and the fabric flat pressing plate device (I) is perpendicular to the supporting platform (H). After the pressing plate lifting cylinder device (J) drives the fabric flat pressing plate device (I) to rise, the fabric can be conveyed from the top of the upper belt assembly (F1). After the pressing plate lifting cylinder device (J) drives the fabric flat pressing plate device (I) to fall, the fabric is clamped between the supporting platform (H) and the fabric flat pressing plate device (I) for folding. The fabric detection sensor (K) is located behind the support platform (H) and the fabric flat pressing plate device (I), and is used to detect whether the fabric stack has reached the designated position; the fabric detection sensor (K) is connected to the controller (A) via a data cable; the pressing plate lifting cylinder device (J) and the first pressing strip flipping device (L) are controlled by the controller (A). The first pressure strip flipping device (L) is close to the support platform (H). The first flipping pressure strip (L1) and the first pressure strip flipping device (L) are transversely traversed in the middle space (F2). The first flipping pressure strip (L1) is arranged in the same direction as the fabric support conveyor belt assembly (F). Each first flipping pressure strip (L1) corresponds vertically and centered with different columns of cutout gaps (F4). The first pressure strip flipping device (L) is used to drive the first flipping pressure strip (L1) to flip and fold the fabric piece by passing through the cutout gaps (F4) from bottom to top. The cutout gaps (F4) provide flipping space for the first flipping pressure strip (L1). A second pressure bar flipping device (M) with a second flipping pressure bar (M1) is provided between the middle sections of the front frame (B) and the rear frame (C); the width of the second flipping pressure bar (M1) is smaller than the width of the cutout gap (F4); Above the fabric flattening and pressing plate device (I) is a fabric stacking, flattening and emptying device (Q) that moves up and down. After the fabric is flipped and folded, it is pressed down and flattened by the fabric stacking, flattening and emptying device (Q). The fabric stacking, flattening and emptying device (Q) is located between the front frame (B) and the rear frame (C), above the upper belt assembly (F1).

2. The flipping and folding device of a fabric folding machine according to claim 1, characterized in that: There are at least two second overturning strips (M1); The fabric flat pressing plate device (I) includes a front flat pressing plate (I1) and a rear flat pressing plate (I2). The front flat pressing plate (I1) and the rear flat pressing plate (I2) are symmetrically arranged at the same height and facing each other. The outer sides of the front flat pressing plate (I1) and the rear flat pressing plate (I2) are fixedly connected to the top of the pressing plate lifting cylinder device (J). The pressing plate lifting cylinder device (J) is used to drive the front flat pressing plate (I1) and the rear flat pressing plate (I2) to lift synchronously, expand laterally, and retract laterally. The front flat plate (I1) and the rear flat plate (I2) are fixedly connected to the top of their outer sides with corresponding front top cylinder brackets (N) and rear top cylinder brackets (O). The front top cylinder brackets (N) and the rear top cylinder brackets (O) are fixedly connected to corresponding front top cylinders (N1) and rear top cylinders (O1) that are tilted to the lower right. The front top cylinders (N1) and the rear top cylinders (O1) are connected to top cylinder control valves (NO) through air pipes. The top cylinder control valves (NO) are connected to controllers (A) through wires. The front auxiliary pressure rods (N2) and the rear auxiliary pressure rods (O2) are fixedly connected laterally to the telescopic rod ends of the front top cylinders (N1) and the rear top cylinders (O1). The front auxiliary pressure rods (N2) and the rear auxiliary pressure rods (O2) are symmetrical at the same height and facing each other. The front auxiliary pressure rods (N2) and the rear auxiliary pressure rods (O2) are located above the right edge of the corresponding front flat plate (I1) and the rear flat plate (I2). The first pressure strip flipping device (L) is located on the left side near the support platform (H), and the second pressure strip flipping device (M) is located on the right side near the support platform (H). The second flipping pressure strip (M1) and the second pressure strip flipping device (M) traverse the middle space (F2). The second flipping pressure strip (M1) is arranged in the same direction as the fabric support conveyor belt assembly (F). Each second flipping pressure strip (M1) corresponds centered with a different column of cutout gaps (F4). The second pressure strip flipping device (M) is used to drive the second flipping pressure strip (M1) to flip and fold the fabric piece by passing through the cutout gaps (F4) from bottom to top. The cutout gaps (F4) provide flipping space for the second flipping pressure strip (M1). The first pressure strip flipping device (L) drives the first flipping pressure strip (L1) to flip clockwise, and the second pressure strip flipping device (M) drives the second flipping pressure strip (M1) to flip counterclockwise. The second flipping pressure strip (M1) works in conjunction with the front auxiliary pressure bar (N2) and the rear auxiliary pressure bar (O2) to achieve flipping, folding and clamping of the fabric on both sides. The front auxiliary pressure bar (N2) and the rear auxiliary pressure bar (O2) are shorter than the lengths of the corresponding front flat pressure plate (I1) and rear flat pressure plate (I2).

3. The flipping and folding device of a fabric folding machine according to claim 2, characterized in that: The first pressure strip flipping device (L) includes at least a first front rotating shaft support (L2), a first flipping shaft (L3), a first rotating shaft gear (L4), a first rack device (L5), a first flipping cylinder (L6), a first rear rotating shaft support (L7), and a first cylinder air source control valve (L8). The first cylinder air source control valve (L8) is connected to a controller (A) via a wire. The first flipping pressure strips (L1) are fixedly connected to the first flipping shaft (L3) in the same arrangement. The first front rotating shaft support (L2) is located near the front frame (B), and the first rear rotating shaft support (L7) is located near the rear frame (C). The front and rear ends of the first flipping shaft (L3) movably traverse the first front rotating shaft support (L2) and the first rear rotating shaft support (L7). At the top of the pivot support (L7), the front end of the first flip shaft (L3) is fixedly connected to the first pivot gear (L4). The gear of the first pivot gear (L4) meshes with the gear of the first rack device (L5). The first rack device (L5) is fixedly connected to the telescopic rod end of the first flip cylinder (L6). The telescopic rod of the first flip cylinder (L6) drives the first rack device (L5), the first pivot gear (L4), and the first flip shaft (L3) to move, causing the first flip pressing strip (L1) to flip, fold, and press the fabric sheet towards the top of the fabric flat pressing plate device (I). The first flip shaft (L3) is located on the left side near the support platform (H). The first front pivot support (L2) is fixedly connected to the first flip cylinder (L6). The second pressure strip flipping device (M) includes at least a second front rotating shaft support (M2), a second flipping shaft (M3), a second rotating shaft gear (M4), a second rack device (M5), a second flipping cylinder (M6), a second rear rotating shaft support (M7), and a second cylinder air source control valve (M8). The second cylinder air source control valve (M8) is connected to a controller (A) via a wire. The second flipping pressure strips (M1) are fixedly connected to the second flipping shaft (M3) in the same arrangement. The second front rotating shaft support (M2) is located near the front frame (B), and the second rear rotating shaft support (M7) is located near the rear frame (C). The front and rear ends of the second flipping shaft (M3) movably pass through the tops of the second front rotating shaft support (M2) and the second rear rotating shaft support (M7). The front end of the second flipping shaft (M3) is fixedly connected to the second rotating shaft gear (M4). The gear of the second rotating shaft gear (M4) is meshed with the gear of the second rack device (M5). The second rack device (M5) is fixedly connected to the telescopic rod end of the second flipping cylinder (M6). The telescopic rod of the second flipping cylinder (M6) drives the second rack device (M5), the second rotating shaft gear (M4), and the second flipping shaft (M3) to move, causing the second flipping pressure strip (M1) to flip, fold, and press the fabric sheet on top of the fabric flat pressing plate device (I). The first flipping shaft (L3) is located on the right side near the support platform (H). The first flipping shaft (L3) and the second flipping shaft (M3) rotate clockwise and counterclockwise. The second front rotating shaft support (M2) is fixedly connected to the second flipping cylinder (M6).

4. The flipping and folding device of a fabric folding machine according to claim 3, characterized in that: The first front pivot support (L2), the first rear pivot support (L7), the second front pivot support (M2), and the second rear pivot support (M7) are movably connected to a tilting shaft spacing adjustment device (P). The tilting shaft spacing adjustment device (P) includes a spacing adjustment handwheel (P1), a main spacing rotation adjustment shaft (P2), a main shaft front bevel gear (P3), a main shaft front axle seat (P4), a front cylinder spacing adjustment threaded rod (P5), a front left bevel gear (P6), a front left bearing seat (P7), a front right bearing seat (P8), a front positioning sliding device (P9), a main shaft rear bevel gear (P10), a main shaft rear axle seat (P11), a rear cylinder spacing adjustment threaded rod (P12), a rear left bevel gear (P13), a rear left bearing seat (P14), a rear right bearing seat (P15), and a rear positioning sliding device (P16). The front spindle housing (P4), front left bearing housing (P7), and front right bearing housing (P8) are fixedly connected to the front frame (B), and the rear spindle housing (P11), rear left bearing housing (P14), and rear right bearing housing (P15) are fixedly connected to the rear frame (C). The pitch adjustment handwheel (P1) is fixedly connected to the front end of the main pitch rotary adjustment shaft (P2). The front and rear end sections of the main pitch rotary adjustment shaft (P2) can just pass through the corresponding front spindle seat (P4) and rear spindle seat (P11) and form a movable connection with them. The front and rear end sections of the main pitch rotary adjustment shaft (P2) are connected and fixed with the corresponding front spindle bevel gear (P3) and rear spindle bevel gear (P10). The left and right end sections of the front cylinder spacing adjusting threaded rod (P5) can just pass through the corresponding front left bearing seat (P7) and front right bearing seat (P8) and form a movable connection with them; the first front shaft support seat (L2) is connected to the front cylinder spacing adjusting threaded rod (P5) in the forward thread, and the second front shaft support seat (M2) is connected to the front cylinder spacing adjusting threaded rod (P5) in the reverse thread; the main shaft front bevel gear (P3) is meshed with the front left bevel gear (P6); the bottom of the front left bearing seat (P7) and the front right bearing seat (P8) are slidably connected to the sliding part of the front positioning sliding device (P9), and the fixed part of the front positioning sliding device (P9) is fixedly connected to the front frame (B); The left and right end sections of the rear cylinder spacing adjusting threaded rod (P12) can just pass through the corresponding rear left bearing seat (P14) and rear right bearing seat (P15) and form a movable connection with them; the first rear shaft support seat (L7) is connected to the rear cylinder spacing adjusting threaded rod (P12) in the forward thread, and the second rear shaft support seat (M7) is connected to the rear cylinder spacing adjusting threaded rod (P12) in the reverse thread; the main shaft rear bevel gear (P10) is meshed with the rear left bevel gear (P13); the bottom of the rear left bearing seat (P14) and the rear right bearing seat (P15) are slidably connected to the sliding part of the rear positioning sliding device (P16), and the fixed part of the rear positioning sliding device (P16) is fixedly connected to the rear frame (C).

5. The flipping and folding device of a fabric folding machine according to claim 1, characterized in that: The fabric folding, flattening, and emptying device (Q) includes a fabric folding and pressing frame (Q1), a lever frame (Q2), a lever base shaft (Q3), a longitudinal lifting cylinder (Q4), and a longitudinal cylinder air source control valve (Q5). The longitudinal lifting cylinder (Q4) is connected to the longitudinal cylinder air source control valve (Q5) via an air pipe. The longitudinal cylinder air source control valve (Q5) is connected to a controller (A) via an electric wire. The top of the fabric folding and pressing frame (Q1) is movably connected to the end of the lever frame (Q2). The middle and rear sections of the lever frame (Q2) are movably traversed by the lever base shaft (Q3). The front end of the lever frame (Q2) is movably connected to the telescopic rod of the longitudinal lifting cylinder (Q4). The longitudinal lifting cylinder (Q4) pushes and pulls one end of the lever frame (Q2) to lift and lower, thereby lifting and lowering the other end. The fabric folding and pressing frame (Q1) rises and falls with the end of the lever frame (Q2), descending to flatten the fabric pieces, fold them tightly, and empty them.

6. The flipping and folding device of a fabric folding machine according to claim 2, characterized in that: The pressure plate lifting cylinder device (J) includes a cylinder base frame (J1), a pressure plate lifting cylinder (J2), a pressure plate cylinder air source control valve (J3), a common lifting crossbeam (J4), a front lateral telescopic cylinder (J5), a front lifting vertical frame (J6), a rear lateral telescopic cylinder (J7), a rear lifting vertical frame (J8), and a crossbeam cylinder air source control valve (J9). The cylinder base (J1) is fixedly connected to the front and rear ends of the corresponding front frame (B) and rear frame (C). A pressure plate lifting cylinder (J2) is vertically fixedly connected to the cylinder base (J1). The pressure plate lifting cylinder (J2) is connected to the pressure plate cylinder air source control valve (J3) via an air pipe. The pressure plate cylinder air source control valve (J3) is connected to the controller (A) via an electrical wire. A common lifting crossbeam (J4) is fixedly connected to the top telescopic rod end of the pressure plate lifting cylinder (J2). The top of the common lifting crossbeam (J4)... A front lateral telescopic cylinder (J5) and a rear lateral telescopic cylinder (J7) are fixedly connected. The front lateral telescopic cylinder (J5) and the rear lateral telescopic cylinder (J7) are arranged in opposite directions. The telescopic rod of the front lateral telescopic cylinder (J5) extends forward, and the telescopic rod of the rear lateral telescopic cylinder (J7) extends backward. The front lateral telescopic cylinder (J5) and the rear lateral telescopic cylinder (J7) are connected to the crossbeam cylinder air source control valve (J9) through air pipes. The crossbeam cylinder air source control valve (J9) is connected to the controller (A) through wires. The telescopic rod end of the front lateral telescopic cylinder (J5) is fixedly connected to the bottom of the front lifting vertical frame (J6), and the top of the front lifting vertical frame (J6) is fixedly connected to the outside of the front flat plate (I1); the telescopic rod end of the rear lateral telescopic cylinder (J7) is fixedly connected to the bottom of the rear lifting vertical frame (J8), and the top of the rear lifting vertical frame (J8) is fixedly connected to the outside of the rear flat plate (I2); the front lifting vertical frame (J6) and the rear lifting vertical frame (J8) are arranged on the corresponding front and rear outer sides of the fabric support conveyor belt assembly (F).

7. The flipping and folding device of a fabric folding machine according to claim 1, characterized in that: The right section of the fabric support conveyor belt assembly (F) is equipped with a fabric stacking and compression device (R); the fabric stacking and compression device (R) includes a front side panel frame (R1), a rear side panel frame (R2), a support plate device (R3), a cylinder gantry frame (R4), a fabric stacking and compression cylinder (R5), a fabric stacking and compression plate (R6), a fabric detection signal sensor (R7), and a compression cylinder air source control valve (R8). The fabric stacking and compression cylinder (R5) is connected to the compression cylinder air source control valve (R8) through an air pipe, and the compression cylinder air source control valve (R8) is connected to a controller (A) through an electric wire. The front side panel frame (R1) and the rear side panel frame (R2) are set on the front and rear outer sides of the fabric support conveyor belt assembly (F); the front side panel frame (R1) and the rear side panel frame (R2) are fixedly connected to the support plate device (R3), which is transversely connected to the middle space (F2), with its top plate surface close to the opposite side of the upper belt assembly (F1); the front side panel frame (R1) and the rear side panel frame (R2) are fixedly connected to the cylinder gantry frame (R4). A fabric stacking compression cylinder (R5) is vertically fixedly connected to the middle of the cylinder gantry (R4). A fabric stacking compression plate (R6) is fixedly connected to the bottom telescopic rod end of the fabric stacking compression cylinder (R5). A fabric piece detection signal sensor (R7) is fixedly connected to the outer side of the middle of the cylinder gantry (R4). The fabric piece detection signal sensor (R7) is connected to the controller (A) via a data cable. The fabric piece detection signal sensor (R7) detects the fabric pieces output from the fabric piece support conveyor belt assembly (F) with its face downward.

8. The flipping and folding device of a fabric folding machine according to claim 7, characterized in that: The right side frame (S) is fixedly connected to the right end of the front frame (B) and the rear frame (C). The right side frame (S) is fixedly connected to the front wall panel frame (R1) and the rear wall panel frame (R2). A belt threading hole (S1) is provided in the right side frame (S). The right section of the fabric supporting the conveyor belt assembly (F) passes through the belt threading hole (S1) and extends to the outside.

9. The flipping and folding device of a fabric folding machine according to claim 1, characterized in that: A left front fabric correction cylinder (T) is provided on the left front outer side of the upper belt assembly (F1). A left front correction push plate (T1) is fixed to the telescopic rod end of the left front fabric correction cylinder (T). The bottom edge of the left front correction push plate (T1) is slightly higher than the upper belt assembly (F1) and does not contact the upper belt assembly (F1). A right front fabric correction cylinder (U) is provided on the right front outer side of the upper belt assembly (F1). A right front correction push plate (U1) is fixed to the telescopic rod end of the right front fabric correction cylinder (U). The bottom edge of the right front correction push plate (U1) is slightly higher than the upper belt assembly (F1) and does not contact the upper belt assembly (F1). The left front fabric piece correction cylinder (T) and the right front fabric piece correction cylinder (U) are fixed to the front frame (B). A left rear fabric correction cylinder (V) is provided on the left rear outer side of the upper belt assembly (F1). A left rear correction push plate (V1) is fixed to the telescopic rod end of the left rear fabric correction cylinder (V). The bottom edge of the left rear correction push plate (V1) is slightly higher than the upper belt assembly (F1) and does not contact the upper belt assembly (F1). A right rear fabric correction cylinder (W) is provided on the right rear outer side of the upper belt assembly (F1). A right rear correction push plate (W1) is fixed to the telescopic rod end of the right rear fabric correction cylinder (W). The bottom edge of the right rear correction push plate (W1) is slightly higher than the upper belt assembly (F1) and does not contact the upper belt assembly (F1). The left rear fabric piece correction cylinder (V) and the right rear fabric piece correction cylinder (W) are fixed to the rear frame (C). The left front fabric correction cylinder (T), right front fabric correction cylinder (U), left rear fabric correction cylinder (V), and right rear fabric correction cylinder (W) are connected to the same correction air source control valve (X) via air pipes. The correction air source control valve (X) is connected to the controller (A) via wires.

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