Automatic spreading machine capable of synchronously spreading multiple layers of cloth

Abstract

The invention discloses an automatic spreading machine capable of synchronously spreading multiple layers of cloth, which comprises a plurality of parallel first guide rails, a plurality of cloth storage devices, a platform, a cutting part and a clamping and pulling part, the bottom of each cloth storage device is provided with a first travelling crane, and the cloth storage devices are slidably connected to the first guide rails through the first travelling cranes; the cloth storage device is driven by the first travelling crane to move on the first guide rail, so that the cloth storage device is in butt joint with the platform. The multiple cloth storage devices are arranged on the first guide rail in a sliding mode through the first traveling crane, after cloth on a certain cloth storage device is pulled out, the cloth storage device can be driven to be away from the platform, a new cloth storage device is driven to be in butt joint with the platform, new cloth pulling work is started, shutdown is not needed, and the cloth pulling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of fabric spreading machine technology, specifically to an automatic fabric spreading machine for synchronously spreading multiple layers of fabric. Background Technology

[0002] Fabric spreading machines are mainly used in the pre-process of garment or textile production. They are responsible for unrolling rolls of fabric and laying them layer by layer on the cutting bed for easy subsequent cutting. During fabric spreading, the fabric is first clamped by a clamping mechanism, and then the clamping mechanism is driven to move, thus spreading the fabric. After spreading, the fabric is cut by a cutting mechanism. When the fabric reaches a certain thickness, it is then removed.

[0003] The current fabric spreading machine has the following main problems: (1) One fabric spreading machine corresponds to one fabric storage rack. When all the fabric on the storage rack is pulled out, the machine needs to be stopped to replace the new fabric before it can continue to spread the fabric, resulting in low work efficiency; (2) Because the fabric is elastic and easy to loosen, it is easy to cause insufficient contact between the cutter and the fabric when cutting the fabric, which is not conducive to cutting; (3) After the fabric is cut, it will be temporarily stored on the platform. When too much fabric is stored, it is difficult to calculate the total thickness of the fabric, so it is impossible to know when to stop spreading the fabric; (4) After the fabric is cut, it will be temporarily stored on the platform. When too much fabric is stored, it will cause the distance between the feed port and the platform to increase. The height of the clamping and pulling device is fixed and it cannot adapt to the feed port with gradually increasing height. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic fabric spreading machine for synchronously spreading multiple layers of fabric, thereby solving the problem of low fabric spreading efficiency in current fabric spreading machines, and also solving the problem of poor contact between the cutter disc and the fabric during cutting.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An automatic fabric spreading machine for synchronously spreading multi-layer fabric includes multiple parallel first guide rails, several fabric storage devices, a platform, a cutting section, and a clamping section. Each fabric storage device has a first traveling carriage at its bottom, which is slidably connected to the first guide rails. The first traveling carriages drive the fabric storage devices to move along the first guide rails, causing the devices to align with the platform. The cutting section, located near the fabric storage devices, includes wall panels fixed to both sides of the platform. First lifting mechanisms are mounted on the two wall panels. The output end of the first lifting mechanism is connected to a blade holder. The blade holder has an inlet for accommodating fabric passage. A pressure plate is connected to the bottom of the blade holder. A lower clamping plate is installed at the bottom of the inlet. Multiple cylinders are installed at the top of the inlet, and the extension / retraction ends of the cylinders are connected to an upper clamping plate. The upper and lower clamping plates are arranged opposite each other, and several opposing toothed grooves are formed on the upper and lower clamping plates. The tool holder is also equipped with a cover with a bottom opening. A belt drive mechanism is provided inside the cover. A cutting mechanism is fixed on the drive belt of the belt drive mechanism. The cutting mechanism is located on the side of the feed port near the clamping and pulling part. The cutting mechanism is driven by the belt drive mechanism to move linearly along the tool holder. A distance sensor is provided at the bottom of the pressure plate. The clamping and pulling part includes a clamping and pulling frame. A second trolley is installed on the clamping and pulling frame and is slidably connected to the platform through the second trolley. A second lifting mechanism is installed on the clamping and pulling frame. The output end of the second lifting mechanism is connected to a lifting frame. Several grippers are installed on the side of the lifting frame facing the cutting part. The grippers correspond one-to-one with the toothed grooves.

[0006] Preferably, the fabric storage device includes a fabric storage rack, a third trolley, a lifting device, and a positioning mechanism. The top of the fabric storage rack is provided with a second guide rail, and the third trolley is slidably connected to the second guide rail.

[0007] The lifting device is installed on the third trolley. The lifting device includes a box installed on the third trolley, a first motor installed in the box, a first gear connected to the motor shaft of the first motor, a first drive shaft rotatably connected in the box, an I-beam wheel fixed to the first drive shaft, and a second gear fixed to one end of the first drive shaft. The first gear and the second gear mesh. A first steel rope is wound on the I-beam wheel. The bottom of the box is provided with a through hole. The free end of the first steel rope passes through the through hole and is connected to a lifting beam. The two ends of the lifting beam are connected to the second steel rope. The lower end of the second steel rope is connected to a hook.

[0008] The fabric storage rack is divided into multiple layers, and each layer is equipped with multiple sets of opposing positioning mechanisms. The positioning mechanism includes a U-shaped seat fixed on the fabric storage rack, a screw rod rotatably connected to the U-shaped seat, a third guide rail connected to the bottom of the U-shaped seat, a handle connected to the outer end of the screw rod, and a slide block threaded to the screw rod. The slide block is located inside the U-shaped seat and is slidably connected to the third guide rail. The end of the slide block away from the handle is rotatably connected to an insertion rod through a rotary bearing.

[0009] The above technical solution uses a lifting device to lift the fabric rolls, a positioning mechanism to stabilize the lifted fabric rolls on the storage rack, and a third trolley to control the movement of the lifting device on the storage rack, thereby lifting the fabric rolls one by one along the length of the storage rack until the storage rack is full of fabric, saving time and effort.

[0010] Preferably, the first lifting mechanism includes a second motor installed on the outside of one of the wall panels, a second drive shaft rotatably connected to both wall panels, a first sprocket fixedly connected to both ends of the second drive shaft, a first chain connected to the two first sprockets, a first connecting plate connected to both ends of the tool holder, a first connecting plate connected to one end of the first chain, and a first load block connected to the other end of the first chain.

[0011] The above technical solution involves starting the second motor, which drives the second transmission shaft to rotate, causing the two first sprockets to rotate synchronously. Through the action of the two first chains, the tool holder is raised and lowered, thus accommodating the ever-increasing amount of fabric on the platform.

[0012] Preferably, the belt drive mechanism includes a third drive shaft rotatably connected to both ends inside the housing, a drive wheel fixed on the two third drive shafts, a third motor installed at one end of the housing and drivenly connected to the third drive shafts, a drive belt drivingly connected to the two drive wheels, and a cutting mechanism installed on the drive belt.

[0013] The above technical solution involves starting the third motor, which drives the third transmission shaft to rotate, thereby driving the two transmission wheels to rotate. The transmission wheels then drive the transmission belt to rotate, which in turn drives the cutting mechanism to make linear motion.

[0014] Preferably, the cutting mechanism includes an L-shaped mounting plate, a connecting block connected to the top of the mounting plate, the connecting block being fixedly connected to a transmission belt, a fourth motor connected to one side of the mounting plate, a connecting sleeve connected to the motor shaft of the fourth motor, a cutter disc connected to the connecting sleeve, and a fabric support plate connected to the bottom of the mounting plate in the same direction as the cutter disc. The fabric support plate extends away from the mounting plate and the extended end is inclined downward. A notch is provided on the fabric support plate, and the lower part of the cutter disc is movably disposed within the notch.

[0015] In the above technical solution, when the cutting mechanism moves linearly with the transmission belt, the inclined surface of the fabric support plate will first contact the fabric. As the cutting mechanism moves, the fabric support plate will gradually lift the fabric, so that the fabric is in close contact with the cutting disc, which is conducive to the cutting disc cutting the fabric.

[0016] Preferably, the second lifting mechanism includes a fifth motor installed on one side of the clamping frame, a fourth drive shaft rotatably connected inside the clamping frame, second sprockets fixedly connected to both ends of the fourth drive shaft, and a second chain drively connected to the two second sprockets. The fifth motor is drively connected to one end of the fourth drive shaft, and the two ends of the lifting frame are connected to second connecting plates. One end of the second chain is connected to the second connecting plate, and the other end of the second chain is connected to a second load-bearing block.

[0017] The above technical solution involves starting the fifth motor, which drives the fourth transmission shaft to rotate. Through the action of the second sprocket and the second chain, the lifting frame is raised and lowered, thereby adjusting the height of the clamping part.

[0018] Preferably, one end of the clamping bracket is connected to a first bracket extending toward the cutting section, and one end of the knife holder is connected to a second bracket extending toward the clamping section. The first bracket is provided with a position receiver, and the second bracket is provided with a position transmitter. The position receiver and the position transmitter are on the same vertical plane.

[0019] In the above technical solution, as the height of the tool holder gradually increases, the position transmitter sends a signal, and the position receiver receives the signal, indicating that the gap between the gripper of the clamping part and the upper and lower clamping plates is aligned, which facilitates the gripper to grab the fabric input from the feed port.

[0020] Preferably, a control box is installed at one end of the clamping bracket. The control box contains a PLC controller and a display screen. The display screen, position transmitter, position receiver, first motor, second motor, third motor, fourth motor, and distance sensor are all electrically connected to the PLC controller.

[0021] In the above technical solution, the PLC controller is programmed with a control program to control the orderly operation of each component.

[0022] Compared with the prior art, the beneficial effects of the present invention are: (1) All the fabric in the same storage device passes through the feed port and is clamped by the clamping part at once, so that all the fabric can be pulled at the same time. In addition, several storage devices are slidably set on the first guide rail by the first trolley. When the fabric in a storage device is pulled out, the storage device can be driven away from the platform, and a new storage device can be driven to dock with the platform to start a new fabric pulling operation. At the same time, a new roll of fabric can be installed on the moved storage device without stopping the operation, which greatly improves the fabric pulling efficiency.

[0023] (2) When the cutting mechanism moves with the belt drive mechanism, the inclined surface of the fabric support plate will first contact the fabric. As the cutting mechanism moves, the fabric support plate will gradually lift the fabric, so that the fabric and the cutting disc will be in close contact, which will help the cutting disc to cut the fabric.

[0024] (3) A distance sensor is installed on the pressure plate to sense the distance between the pressure plate and the platform, thereby obtaining the total thickness of the fabric. When the fabric reaches the set value, the fabric pulling and cutting are stopped. After the fabric on the platform is removed, the new fabric pulling and cutting will start.

[0025] (4) The cutting part is equipped with a position transmitter and the clamping part is equipped with a position receiver. When the position receiver receives the signal sent by the position transmitter, the cutting part stops lifting and lowering, so that the gap between the clamp and the upper clamp and the lower clamp is aligned, thereby facilitating the gripping of the clamp. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the lifting device; Figure 3 This is a sectional view of the box. Figure 4 A schematic diagram of the positioning mechanism; Figure 5 This is a schematic diagram of the cutting section; Figure 6 This is a schematic diagram of the cutting mechanism; Figure 7 This is a schematic diagram of the clamping and pulling part; Figure 8 for Figure 7 A magnified view of a portion of the image; Figure 9 This is a bottom view of the fabric storage rack; In the diagram: 1 - First guide rail; 2-Cloth storage device, 201-First gantry crane, 202-Cloth storage rack, 203-Third gantry crane, 204-Second guide rail, 205-Box body, 206-First motor, 207-First gear, 208-I-beam wheel, 209-Second gear, 210-First steel rope, 211-Lifting beam, 212-Second steel rope, 213-Hook, 214-U-shaped seat, 215-Screw rod, 216-Third guide rail, 217-Handle, 218-Slide seat, 219-Insertion rod; 3-Platform; 4-Cutting section, 401-Wall panel, 402-Knife holder, 403-Feed inlet, 404-Pressure plate, 405-Lower clamping plate, 406-Cylinder, 407-Upper clamping plate, 408-Gear groove, 409-Cover, 410-Distance sensor, 411-Second drive shaft, 412-First sprocket, 413-First chain, 414-First load-bearing block, 415-Drive wheel, 416-Third motor, 417-Mounting plate, 418-Connecting block, 419-Fourth motor, 420-Knife disc, 421-Fabric support plate, 422-Notch, 423-Second bracket, 424-Position transmitter; 5-Clamping and pulling part, 501-Clamping and pulling frame, 502-Second gantry crane, 503-Lifting frame, 504-Gripper, 505-Fifth motor, 506-Fourth drive shaft, 507-Second sprocket, 508-Second chain, 509-Second load block, 510-First bracket, 511-Position receiver, 512-Control box; 6-Positioning rod; 7-Cloth roll. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-9 An automatic fabric spreading machine for synchronously spreading multi-layer fabric includes two parallel first guide rails 1, several fabric storage devices 2, a platform 3, a cutting section 4, and a clamping section 5. All fabric storage devices 2 have a first trolley 201 at their bottom, which is slidably connected to the first guide rails 1. The first trolley 201 drives the fabric storage devices 2 to move along the first guide rails 1, causing the fabric storage devices 2 to dock with the platform 3. The cutting section 4 is located near the fabric storage devices 2 and is mounted on the platform. The clamping section slides on the platform, pulling the fabric on the storage devices and cutting the straightened fabric through the cutting section.

[0029] Several fabric storage devices 2 are slidably mounted on the first guide rail 1 via the first trolley 201. When the fabric in a certain fabric storage device 2 is exhausted, the device can be driven away from the platform, and a new fabric storage device can be driven to dock with the platform 3 to start a new fabric pulling operation. At the same time, a new roll of fabric can be installed on the moved fabric storage device without stopping work, greatly improving the fabric pulling efficiency.

[0030] The fabric storage device 2 includes a fabric storage rack 202, a third trolley 203, a lifting device, and a positioning mechanism. A second guide rail 204 is provided on the top of the fabric storage rack 202, and the third trolley 203 is slidably connected to the second guide rail 204. The lifting device is mounted on the third trolley 203. The third trolley 203 drives the lifting device to move on the fabric storage rack. The lifting device includes a housing 205 mounted on a third trolley, a first motor 206 mounted inside the housing, a first gear 207 driven by the motor shaft of the first motor, a first drive shaft rotatably connected inside the housing, a helical reel 208 fixed to the first drive shaft, and a second gear 209 fixed to one end of the first drive shaft. The first gear 207 and the second gear 209 mesh. A first steel rope 210 is wound around the helical reel 208. The bottom of the housing has a through hole through which the free end of the first steel rope 210 passes, and the passing end is connected to a lifting beam 211. The two ends of the lifting beam 211 are connected to second steel ropes 212, and the lower end of the second steel rope 212 is connected to a hook 213. When the first motor 206 is started, the first drive shaft is rotated through the engagement of the first and second gears, thereby rotating the helical reel to wind up and unwind the first steel rope, thus raising and lowering the lifting beam 211.

[0031] The fabric storage rack 202 is divided into multiple layers, each layer having multiple sets of opposing positioning mechanisms. Each positioning mechanism includes a U-shaped base 214 fixed to the fabric storage rack, a lead screw 215 rotatably connected within the U-shaped base, a third guide rail 216 connected to the bottom of the U-shaped base, a handle 217 connected to the outer end of the lead screw, and a slide 218 threadedly connected to the lead screw. The slide 218 is located within the U-shaped base 214 and is slidably connected to the third guide rail 216. An insertion rod 219 is rotatably connected to the end of the slide 218 away from the handle via a rotary bearing. Corresponding to the insertion rod 219 is a positioning rod 6, which is inserted into the center hole of the fabric roll 7. Both ends of the positioning rod 6 have slots that match the insertion rod. When lifting the fabric roll, first insert the positioning rod 6 into the center hole of the fabric roll 7, then start the first motor 206 to release the first steel rope 210, then hang the hook 213 on the positioning rod 6, then control the first motor 206 to rotate in the opposite direction to wind up the first steel rope, and drive the third trolley 203 to move so that the fabric roll reaches between the two corresponding positioning mechanisms. Then turn the handle 217 to drive the lead screw 215 to rotate, so that the slide 218 moves towards the fabric roll until the insertion rod 219 is inserted into the slot of the positioning rod 6, thus completing the installation of the fabric roll. Then remove the hook from the positioning rod and start lifting and installing a new fabric roll, which improves the installation efficiency of the fabric roll and saves time and effort.

[0032] The cutting section 4 includes wall panels 401 fixed to both sides of the platform. A first lifting mechanism is installed on the two wall panels 401. The output end of the first lifting mechanism is connected to a blade holder 402, which is driven to lift and lower. The first lifting mechanism includes a second motor installed on the outside of one of the wall panels 401, a second drive shaft 411 rotatably connected to both wall panels, a first sprocket 412 fixedly connected to both ends of the second drive shaft, and a first chain 413 drivingly connected to the two first sprockets. The two ends of the blade holder 402 are connected to first connecting plates. One end of the first chain 413 is connected to the first connecting plate, and the other end of the first chain 413 is connected to a first load block 414. The opposite surfaces of the two wall panels are also provided with second guide rails. The end face of the blade holder is provided with two opposing pulleys, which are slidably connected to both sides of the second guide rails to improve the stability of the blade holder lifting and lowering.

[0033] The blade holder 402 is provided with an inlet 403 for accommodating fabric through which it passes. A pressure plate 404 is connected to the bottom of the blade holder 402. A lower clamping plate 405 is installed at the bottom of the inlet 403. Multiple cylinders 406 are installed at the top of the inlet 403. An upper clamping plate 407 is connected to the telescopic end of the cylinders 406. The upper clamping plate 407 and the lower clamping plate 405 are arranged opposite to each other. The fabric in the fabric storage device passes between the upper clamping plate and the lower clamping plate. Several opposing toothed grooves 408 are opened on the upper clamping plate 407 and the lower clamping plate 405. A cover 409 with a bottom opening is also installed on the blade holder 402. A belt drive mechanism is provided inside the cover 409. A cutting mechanism is fixed on the drive belt of the belt drive mechanism. The cutting mechanism is located on the side of the inlet 403 near the clamping and pulling part 5. The cutting mechanism is driven by the belt drive mechanism to move linearly along the blade holder 402.

[0034] The belt drive mechanism includes a third drive shaft rotatably connected to both ends of the housing 409, a drive wheel 415 fixed to the two third drive shafts, and a third motor 416 mounted on one end of the housing and driven by the third drive shafts. A drive belt is driven to the two drive wheels, and the cutting mechanism is mounted on the drive belt. The cutting mechanism includes an L-shaped mounting plate 417. A connecting block 418 is connected to the top of the mounting plate 417 and is fixedly connected to the drive belt. A fourth motor 419 is connected to one side of the mounting plate 417. A connecting sleeve is connected to the motor shaft of the fourth motor 419, and a cutter disc 420 is connected to the connecting sleeve. A fabric support plate 421 in the same direction as the cutter disc is connected to the bottom of the mounting plate 417. The fabric support plate 421 extends away from the mounting plate, and the extended end is inclined downward. A notch 422 is provided on the fabric support plate 421, and the lower part of the cutter disc 420 is movably disposed in the notch 422. The third motor 416 is started, driving the third transmission shaft to rotate, which in turn drives the two transmission wheels to rotate. The transmission wheels drive the transmission belt to rotate, thereby causing the connecting block 418 to move together. When cutting the fabric, the inclined surface of the fabric support plate 421 will first contact the fabric. As the cutting mechanism moves, the fabric support plate 421 will gradually lift the fabric, so that the fabric is in close contact with the cutter head 420, which facilitates the cutter head to cut the fabric.

[0035] A distance sensor 410 is provided at the bottom of the pressure plate 404. The distance sensor is located on the side of the bottom surface of the pressure plate near the fabric storage device. When the fabric is pressed down by the pressure plate, it prevents the fabric from blocking the distance sensor. The distance sensor on the pressure plate senses the distance between itself and the platform, thereby determining the total thickness of the fabric. When the fabric reaches the set value, the fabric pulling and cutting stop. After the fabric on the platform is removed, the new fabric pulling and cutting begins.

[0036] The clamping and pulling part 5 includes a clamping and pulling frame 501, on which a second carriage 502 is mounted and slidably connected to the platform 3. A second lifting mechanism is mounted on the clamping and pulling frame 501, and the output end of the second lifting mechanism is connected to a lifting frame 503. Several grippers 504 are mounted on the side of the lifting frame 503 facing the cutting part. The grippers are made of finger cylinders, and the two output ends of the finger cylinders are connected to opposing clamping plates. The grippers 504 correspond one-to-one with the tooth grooves 408, that is, when the grippers grab, they will grab the fabric exposed at the tooth grooves.

[0037] The second lifting mechanism includes a fifth motor 505 mounted on one side of the clamping frame, a fourth drive shaft 506 rotatably connected within the clamping frame, second sprockets 507 fixedly connected to both ends of the fourth drive shaft, and a second chain 508 drivingly connected to the two second sprockets. The fifth motor 505 is drivingly connected to one end of the fourth drive shaft 506. Second connecting plates are connected to both ends of the lifting frame 503. One end of the second chain 508 is connected to the second connecting plate, and the other end of the second chain 508 is connected to a second load-bearing block 509. One end of the clamping frame 501 is connected to a first bracket 510 extending towards the cutting section, and one end of the knife holder 402 is connected to a second bracket 423 extending towards the clamping section. A position receiver 511 is provided on the first bracket 510, and a position transmitter 424 is provided on the second bracket 423. The position receiver 511 and the position transmitter 424 are on the same vertical plane.

[0038] The fifth motor 505 is started, driving the fourth transmission shaft to rotate. Through the action of the second sprocket and the second chain, the lifting frame 503 is raised and lowered, thereby adjusting the height of the clamping part 5. As the height of the knife holder 402 gradually increases, the position transmitter 424 sends a signal. After the position receiver 511 receives the signal, it indicates that the gap between the gripper of the clamping part 5 and the upper clamping plate 407 and the lower clamping plate 405 is aligned. At this time, the fifth motor stops working, which facilitates the gripper to grab the fabric input from the feed port.

[0039] A control box 512 is installed at one end of the clamping bracket 501. The control box 512 contains a PLC controller and a display screen. The display screen, position transmitter, position receiver, first motor, second motor, third motor, fourth motor, fifth motor, and distance sensor are all electrically connected to the PLC controller. The PLC controller contains a control program for controlling the orderly operation of each component. The display screen shows various parameters and input value settings.

[0040] The first, second, and third tractors described in this invention are all driven by motors, causing the wheels to move along the guide rails. This is existing technology and will not be described in detail here.

[0041] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic fabric spreading machine for synchronously spreading multiple layers of fabric, characterized in that, It includes two parallel first guide rails (1), several fabric storage devices (2), a platform (3), a cutting section (4) and a clamping section (5). All fabric storage devices (2) are equipped with a first trolley (201) at the bottom and are slidably connected to the first guide rails (1) through the first trolley (201). The first trolley (201) drives the fabric storage device (2) to move on the first guide rails (1) so that the fabric storage device (2) docks with the platform (3). The cutting section (4) is located near the fabric storage device (2). The cutting section (4) includes wall panels (401) fixed to both sides of the platform. A first lifting mechanism is installed on the two wall panels (401). The output end of the first lifting mechanism is connected to a knife holder (402). The knife holder (402) is provided with an inlet (403) for accommodating the fabric. A pressure plate (404) is connected to the bottom of the knife holder (402). A lower clamping plate (405) is installed at the bottom of the inlet (403). Multiple cylinders (406) are installed at the top of the inlet (403). The telescopic ends of the cylinders (406) are connected to an upper clamping plate (407). The upper clamping plate (407) and the lower clamping plate (405) are arranged opposite to each other, and the upper clamping plate (407) and the lower clamping plate (405) are provided with several opposing toothed grooves (408); the tool holder (402) is also equipped with a cover (409) with a bottom opening, and a belt drive mechanism is provided inside the cover (409). A cutting mechanism is fixed on the drive belt of the belt drive mechanism. The cutting mechanism is located on the side of the feed inlet (403) near the clamping and pulling part (5). The cutting mechanism is driven to move linearly along the tool holder (402) through the belt drive mechanism; a distance sensor (410) is provided at the bottom of the pressure plate (404). The clamping and pulling part (5) includes a clamping and pulling frame (501), on which a second carriage (502) is installed and slidably connected to the platform (3) via the second carriage (502). A second lifting mechanism is installed on the clamping and pulling frame (501), and the output end of the second lifting mechanism is connected to a lifting frame (503). Several grippers (504) are installed on the side of the lifting frame (503) facing the cutting part, and the grippers (504) correspond one-to-one with the tooth grooves (408).

2. The automatic fabric spreading machine for synchronously spreading multi-layer fabric according to claim 1, characterized in that, The fabric storage device (2) includes a fabric storage rack (202), a third trolley (203), a lifting device, and a positioning mechanism; The top of the fabric storage rack (202) is provided with a second guide rail (204), and the third trolley (203) is slidably connected to the second guide rail (204); The lifting device is installed on the third trolley (203). The lifting device includes a box (205) installed on the third trolley, a first motor (206) installed in the box, a first gear (207) connected to the motor shaft of the first motor, a first drive shaft rotatably connected in the box, a bobbin (208) fixed on the first drive shaft, and a second gear (209) fixed at one end of the first drive shaft. The first gear (207) and the second gear (209) mesh. A first steel rope (210) is wound on the bobbin (208). The bottom of the box is provided with a through hole. The free end of the first steel rope (210) passes through the through hole and is connected to a lifting beam (211). The two ends of the lifting beam (211) are connected to a second steel rope (212). The lower end of the second steel rope (212) is connected to a hook (213). The fabric storage rack (202) is divided into multiple layers, and multiple sets of relative positioning mechanisms are installed on each layer. The positioning mechanism includes a U-shaped seat (214) fixed on the fabric storage rack, a screw (215) rotatably connected in the U-shaped seat, a third guide rail (216) connected to the bottom of the U-shaped seat, a handle (217) connected to the outer end of the screw, and a slide (218) threadedly connected to the screw. The slide (218) is located in the U-shaped seat (214), and the slide (218) is slidably connected to the third guide rail (216). The end of the slide (218) away from the handle is rotatably connected to the insertion rod (219) through a rotary bearing.

3. The automatic fabric spreading machine for synchronously spreading multi-layer fabric according to claim 2, characterized in that, The first lifting mechanism includes a second motor installed on the outside of one of the wall panels (401), a second drive shaft (411) rotatably connected to the two wall panels, a first sprocket (412) fixedly connected to both ends of the second drive shaft, and a first chain (413) connected to the two first sprockets. The two ends of the tool holder (402) are connected to the first connecting plate, one end of the first chain (413) is connected to the first connecting plate, and the other end of the first chain (413) is connected to the first load block (414).

4. The automatic fabric spreading machine for synchronously spreading multi-layer fabric according to claim 3, characterized in that, The belt drive mechanism includes a third drive shaft rotatably connected to both ends inside the housing (409), a drive wheel (415) fixed on the two third drive shafts, a third motor (416) installed at one end of the housing and drivenly connected to the third drive shaft, a drive belt drivingly connected to the two drive wheels, and a cutting mechanism installed on the drive belt.

5. An automatic fabric spreading machine for synchronously spreading multi-layer fabrics according to claim 4, characterized in that, The cutting mechanism includes an L-shaped mounting plate (417), a connecting block (418) connected to the top of the mounting plate (417), the connecting block (418) being fixedly connected to the transmission belt, a fourth motor (419) connected to one side of the mounting plate (417), a connecting sleeve connected to the motor shaft of the fourth motor (419), a cutter disc (420) connected to the connecting sleeve, a fabric support plate (421) in the same direction as the cutter disc connected to the bottom of the mounting plate (417), the fabric support plate (421) extending away from the mounting plate and the extended end tilting downward, a notch (422) provided on the fabric support plate (421), and the lower part of the cutter disc (420) being movably disposed in the notch (422).

6. An automatic fabric spreading machine for synchronously spreading multi-layer fabrics according to claim 5, characterized in that, The second lifting mechanism includes a fifth motor (505) installed on one side of the clamping frame, a fourth drive shaft (506) rotatably connected inside the clamping frame, second sprockets (507) fixedly connected to both ends of the fourth drive shaft, and a second chain (508) driven by the two second sprockets. The fifth motor (505) is driven by one end of the fourth drive shaft (506). The two ends of the lifting frame (503) are connected to second connecting plates. One end of the second chain (508) is connected to the second connecting plate, and the other end of the second chain (508) is connected to a second load block (509).

7. An automatic fabric spreading machine for synchronously spreading multi-layer fabrics according to claim 6, characterized in that, One end of the clamping bracket (501) is connected to a first bracket (510) extending toward the cutting part, and one end of the knife holder (402) is connected to a second bracket (423) extending toward the clamping part. The first bracket (510) is provided with a position receiver (511), and the second bracket (423) is provided with a position transmitter (424). The position receiver (511) and the position transmitter (424) are on the same vertical plane.

8. An automatic fabric spreading machine for synchronously spreading multi-layer fabrics according to claim 7, characterized in that, A control box (512) is installed at one end of the clamping bracket (501). The control box (512) contains a PLC controller and a display screen. The display screen, position transmitter, position receiver, first motor, second motor, third motor, fourth motor, fifth motor, and distance sensor are all electrically connected to the PLC controller.

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