A cloth feeding mechanism of a cloth spreading machine

Abstract

The present invention discloses a cloth feeding mechanism of a cloth stretching machine, which mainly comprises a clamping device, a cloth sweeping device, a cloth cutting device and a deviation correction system. A plurality of air holes are arranged at equal intervals in the horizontal direction at the front end of the cloth feeding lower jaw plate, and all the air holes are connected to an air station through an air pipe. The air station can suction air under negative pressure or blow air under positive pressure. A plurality of rectangular teeth are arranged at the front end of the cloth feeding lower jaw plate and the cloth feeding upper jaw plate, and the two cooperate to clamp the end of the cloth. The cloth sweeping roller is installed at the front end of the cloth sweeping swing arm and can be driven by a cloth sweeping motor, and two cloth sweeping strips with opposite rotation directions are arranged on the outside of the cloth sweeping roller. The cloth cutter is installed on the upper side of the cloth feeding upper jaw plate and can slide left and right. A downward laser emitter is arranged inside the cloth cutter, and the laser emitter can emit laser and be used to cut cloth. The camera motor can realize the movement and positioning of the two cameras. The two cameras can continuously collect high-definition images of the edge of the cloth on the scale line, and transmit the data to the host computer, so as to judge whether the cloth is offset during the cloth stretching process.

Description

Technical Field

[0001] The present invention relates to the technical field of cloth spreading machines, and in particular to a cloth feeding mechanism of a cloth spreading machine. Background Art

[0002] With the continuous advancement of industrialization, the garment manufacturing industry has gradually shifted from a traditional labor-intensive industry to one that is industrialized and automated. Since most fabric is produced and transported in rolls, a crucial step upon arrival at the user's factory is to unfold the rolled fabric into a multi-layered, flat surface for efficient cutting. Fabric stretching and cutting play a crucial role in the garment-making process. Only well-defined cut pieces can produce garments that meet specifications. Without well-defined cut pieces, even the best sewing machines and the most skilled seamstresses cannot produce high-quality garments. Fabric stretching is the prerequisite for cutting and the first step in garment-making. The quality of fabric stretching directly determines the quality of the finished garment.

[0003] Cloth spreading machines, which are professionally used for spreading fabrics, began to enter the domestic market in the early 1990s. Initially, only European, American and Japanese cloth spreading machines were promoted in China. After nearly two decades of development, China's cloth spreading machine market has gradually matured and the market is huge. Many domestic technology companies have conducted research on cloth spreading machines. For example, the invention patent with application number 202011229545.1 discloses a three-in-one cloth spreading machine for producing clothing fabrics, including a frame, a workbench, a cutting mechanism and a cloth spreading mechanism. The cutting mechanism cuts the fabric, and the cutting machine can move horizontally and up and down to achieve the purpose of cutting the fabric. The rubber pad at the bottom of the box is in contact and pressed with the fabric to prevent the fabric from running around; but its The structure still has certain technical defects: ① The cloth roll is not convenient to load; ② The guide wheels 1 and 2 are not easy to disassemble or open, which makes the cloth loading process time-consuming and labor-intensive, and can easily squeeze fingers; ③ When stretching coated cloth and other cloths with good airtightness, the air between layers is difficult to discharge due to the airtightness of the cloth, which will cause air isolation drift. The above-mentioned cloth stretching machine cannot solve this problem well; ④ The walking speed of the cloth stretching mechanism when starting and about to stop is often slower than the normal walking speed, that is, there is a situation where it is slow at both ends and fast in the middle. It is difficult to ensure that the tension of the cloth is always uniform. Uneven tension will lead to uneven stacking of cloth, increase the difficulty of subsequent cloth cutting, and reduce the yield rate, resulting in significant waste. Therefore, the development of a cloth stretching machine that is easy to load, easy to load cloth, has uniform tension, and can efficiently stack coated cloth has significant economic and social benefits. Summary of the Invention

[0004] In order to address the deficiencies of the prior art, the purpose of the present invention is to provide a cloth feeding mechanism for a cloth stretching machine, which adopts a high-energy laser to cut the cloth, which can not only cut in both directions, but also will not cause pulling and deviation of the cloth cut; the visual correction system adopts a negative feedback closed-loop servo adjustment mode, which has extremely high precision; the sweeping roller can flatten the cloth from the middle to both sides through the sweeping strip, thereby improving the stacking quality of the cloth; and it can also effectively solve the problem of air isolation drift when coating cloth is stacked.

[0005] The technical solution adopted by the present invention is: a cloth feeding mechanism of a cloth stretching machine, mainly including a clamping device, a cloth sweeping device, a cloth cutting device, and a deviation correction system, characterized in that: the front end of the cloth feeding jaw plate in the clamping device is provided with 14 rectangular teeth, and a plurality of air holes are also provided at the front end at equal intervals in the horizontal direction, and all the air holes are connected to the air station through an air pipe; the two jaw slides are respectively installed at the outer lower ends of the two slide stand frames, and can realize the up and down movement and positioning of the cloth feeding jaw plate; two vertical plates are provided on the left and right sides of the cloth feeding upper jaw plate, and 14 Rectangular teeth, a row of scale lines is horizontally provided on the front end of the upper side of the cloth feeding upper jaw plate, the scale lines can be used to mark the position of the edges of both sides of the cloth, an upper jaw guide rail and an upper jaw rack are horizontally provided on the upper side of the cloth feeding upper jaw plate, an upper jaw connecting frame is horizontally provided on the upper end of the cloth feeding upper jaw plate, and an upper jaw second guide rail is fixedly provided on the front side of the upper jaw connecting frame; the two upper jaw slides are vertically installed on the outer upper ends of the two slide stand frames, and can realize the up and down movement and positioning of the cloth feeding upper jaw plate; the two swing arm motors in the cloth sweeping device are installed on the vertical plates on both sides of the cloth feeding upper jaw plate, and the cloth sweeping device The two ends of the swing arm are arm-shaped structures, and the rear ends of the two arm-shaped structures are respectively fastened to the output shafts of the corresponding side swing arm motors. The cloth sweeping roller is installed at the front end of the cloth sweeping swing arm and can be driven by the cloth sweeping motor. Two cloth sweeping strips with opposite rotation directions are provided on its outer side. A downward laser emitter is provided inside the cloth cutter in the cloth cutting device. The laser emitter can emit laser and be used to cut cloth. The cloth cutter is installed on the upper side of the cloth feeding jaw plate and can be moved and positioned by the cutting motor through the gear rack transmission structure. The camera motor in the deviation correction system is installed on the right side of the cloth feeding jaw plate. The pulley on the left end of the No. 1 synchronous belt and the pulley on the right end of the No. 2 synchronous belt form a gear meshing transmission structure, so that the two synchronous belts will rotate in opposite directions at the same time; the No. 1 camera is installed on the second guide rail of the upper jaw through the No. 1 slider and is connected to the No. 1 synchronous belt; the No. 2 camera is installed on the second guide rail of the upper jaw through the No. 2 slider and is connected to the No. 2 synchronous belt; the two cameras can continuously collect high-definition images of the edge of the fabric on the scale line, and transmit the data to the host computer to determine whether the fabric is offset during the pulling process.

[0006] Preferably, the air station can suction air at negative pressure or blow air at positive pressure, that is, when the air station generates negative pressure, it can suction air inward through the air holes at the front end of the feed jaw plate, and when the air station generates positive pressure, it can blow air outward through the air holes at the front end of the feed jaw plate; in the process of correcting the lateral movement of the fabric, the air station generates positive pressure and blows appropriate air to the lower side of the fabric through the air holes at the front end of the feed jaw plate, using air as a lubricant to avoid the lower layer of fabric from shifting when the fabric moves laterally; in the process of pulling the coated fabric, the air station can generate negative pressure and extract the air on the lower side of the fabric in time through the air holes at the front end of the feed jaw plate, thereby avoiding the problem of air isolation drift of the coated fabric.

[0007] Preferably, a No. 2 guide roller is rotatably mounted on the rear side of the lower ends of the vertical plates on both sides of the cloth feeding upper jaw plate.

[0008] Preferably, the structure of the rectangular teeth and the rectangular groove at the front end of the upper feed jaw corresponds one to one with the structure of the rectangular teeth and the rectangular groove at the front end of the lower feed jaw.

[0009] Preferably, the laser transmitter can emit a laser beam and cut the cloth.

[0010] Preferably, the cloth cutter can cut the cloth in two directions, and there is no physical contact between the cloth cutter and the cloth, which will not cause the cloth cut to be pulled or offset, thereby ensuring the cutting accuracy to the greatest extent.

[0011] Preferably, the sweeping roller is a cylindrical structure with two sweeping strips on its outside, of which the sweeping strip on the left half is a left-handed structure and the sweeping strip on the other half is a right-handed structure; when the sweeping roller rotates clockwise, the sweeping strips can flatten the cloth from the middle to both sides, thereby improving the stacking quality of the cloth.

[0012] Preferably, two gears are provided at the upper and lower ends of the No. 2 pulley at the left end of the No. 1 synchronous belt, and the structure of the No. 3 pulley at the right end of the No. 2 synchronous belt is the same as that of the No. 2 pulley, and the No. 2 pulley and the No. 3 pulley form a gear meshing transmission structure.

[0013] Preferably, the angles of camera 1 and camera 2 can be adjusted, and during the cloth pulling process, the two cameras are always aligned with the intersection of the left and right edges of the cloth and the scale lines respectively.

[0014] Preferably, the worm gear reduction structure inside the swing arm motor has a motion self-locking performance, which can effectively prevent the spontaneous swing of the sweeping cloth swing arm.

[0015] Beneficial effects of the present invention:

[0016] (1) The cloth cutting device in the traditional cloth stretching machine mainly adopts a blade structure and can only cut in one direction, that is, it must be reset after cutting once, and the blade will cause a certain degree of pulling and deviation of the cloth cut depending on the sharpness of the blade when cutting; the present invention adopts a high-energy laser for cutting, which can not only cut in two directions, but also has no physical contact with the cloth, and will not cause pulling and deviation of the cloth cut, thereby ensuring the cutting accuracy to the greatest extent.

[0017] (2) The present invention adopts a visual correction system. Two cameras can monitor the scale data of the edge of the cloth in real time and transmit the information to the host computer in the form of negative feedback. The entire correction process adopts a negative feedback closed-loop servo adjustment mode, which has extremely high precision. In the process of cloth lateral movement correction, the air station generates positive pressure and blows appropriate air to the lower side of the cloth through the air holes at the front end of the cloth feeding jaw plate, using air as a lubricant to avoid the lower layer of cloth from being deflected when the cloth moves horizontally.

[0018] (3) The present invention adopts a sweeping roller structure, and two sweeping strips with opposite rotation directions are provided on the outside of the sweeping roller. The sweeping roller is installed at the front end of the sweeping arm and can rotate clockwise. After the sweeping roller contacts the upper side of the cloth, the sweeping strips can be used to flatten the cloth from the middle to both sides, thereby improving the stacking quality of the cloth.

[0019] (4) The air tightness of the coated fabric is relatively high. When the coated fabric is stacked, the air on the lower side of the fabric cannot be discharged in time, resulting in air isolation drift problems, which reduces the stacking quality of the fabric. Traditional cloth stretching machines can only rely on multiple workers to stack the coated fabric by manual sweeping and pressing, which is labor-intensive and inefficient. The air station in the present invention can generate negative pressure and extract the air on the lower side of the fabric in time through the air holes at the front end of the cloth feeding jaw, thereby avoiding the problem of air isolation drift of the coated fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of the present invention.

[0021] Figure 2 A front-view enlarged structural diagram of the rack position in the present invention.

[0022] Figure 3 A rear-view enlarged structural diagram of the rack position in the present invention.

[0023] Figure 4 Schematic diagram of the front structure of the cloth feeding mechanism in the present invention.

[0024] Figure 5 Schematic diagram of the rear view structure of the cloth feeding mechanism in the present invention.

[0025] Figure 6Schematic diagram of the overall structure of the cloth clamping mechanism in the present invention.

[0026] Figure 7 A schematic bottom view of the structure of the cloth clamping mechanism of the present invention.

[0027] Figure 8 A schematic diagram of a state during the loading process of the present invention.

[0028] Figure 9 Schematic diagram of the partial cross-sectional structure of the lower end of the cloth-supporting electric cylinder.

[0029] Figure 10 A schematic cross-sectional view of a state during the fabric loading process of the present invention.

[0030] Figure 11 A schematic cross-sectional view of a state during the cloth-pulling process of the present invention.

[0031] Figure numbers: 1 bed, 1.1 bed rack, 1.2 bed guide rail, 2 cloth feeding mechanism, 3 frame, 3.1 first electric cylinder seat, 4 guide roller No. 1, 5 cloth feeding roller, 6 cloth roll, 7 loading mechanism, 8 cloth feeding motor, 9 connecting plate, 10 guide roller slide, 11 transverse slide, 12 slide, 12.1 slide stand, 12.2 slide guide rail, 13 slide motor, 14 cloth clamping frame, 15 cloth sweeping roller, 15.1 Sweeping strip, 16 belt, 17 sweeping motor, 18 feeding upper jaw, 18.1 upper jaw connecting frame, 19 second slide, 20 cloth supporting electric cylinder, 21 electric actuator, 22 cloth pressing roller, 23 feeding small arm, 24 small arm electric cylinder, 25 arm electric cylinder, 26 feeding large arm, 26.1 second electric cylinder seat, 27 swing arm motor, 28 first connecting angle, 29 sweeping swing arm, 29.1 swing arm connecting plate, 30 feeding lower jaw Plate, 30.1 air pipe, 31 camera No. 1, 32 cutting motor, 33 pressure sensor No. 1, 34 pressure roller seat, 35 inclined push electric cylinder, 36 adjusting roller, 37 upper jaw slide, 38 No. 3 connecting angle, 39 No. 2 connecting angle, 40 lower jaw slide, 41.1 upper jaw first guide rail, 41.2 upper jaw second guide rail, 42 upper jaw rack, 43 No. 4 pulley, 44 No. 2 synchronous belt, 45 cloth cutter, 46 No. 2 pulley, 47 Pulley No. 3, 48 Timing belt No. 1, 49 Slider No. 1, 50 Pulley No. 1, 51 Guide roller No. 2, 52 Camera motor, 53 Camera No. 2, 54 Cloth clamping jaw plate, 55 Cloth clamping lower slide, 56 Connecting angle No. 4, 57 Cloth clamping upper slide, 58 Connecting angle No. 5, 59 Cloth clamping jaw plate, 60 Gear No. 1, 61 Gear No. 2, 62 Rubber pad, 63 Pressure sensor No. 2, 64 Joint bearing rod. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0033] like Figure 1 As shown, a cloth stretching machine for convenient cloth loading mainly includes a bed 1, a cloth feeding mechanism 2, a frame 3, a No. 1 guide roller 4, a cloth feeding roller 5, a feeding mechanism 7, a cloth feeding motor 8, a connecting plate 9, a guide roller slide 10, a transverse slide 11, a slide 12, a slide motor 13, a cloth clamping mechanism, a cloth supporting electric cylinder 20, an electric actuator 21, a cloth pressing roller 22, a No. 1 pressure sensor 33, a pressure roller seat 34, an oblique push electric cylinder 35, an adjusting roller 36, a No. 1 gear 60, a rubber pad 62, a No. 2 pressure sensor 63, a joint bearing rod 64, and an upper computer. The upper side of the bed 1 is a rectangular plane structure, and the lower side of the bed 1 has sufficient supporting legs to provide stable and horizontal support for the upper plane structure. Two rows of bed racks 1.1 and two rows of bed guide rails 1.2 are longitudinally arranged on the left and right sides of the bed 1. The front end of the bed 1 is fixedly installed with a cloth clamping mechanism; the upper computer can be installed on one side of the cloth stretching machine as needed, and an intelligent control system is integrated inside it, which can automatically control parameters such as feeding position, cloth tension, stacking speed, etc. according to the material and size of the cloth, and can be used to realize human-computer interaction.

[0034] like Figure 2 、 Figure 5As shown, the slide 12 is a left-right symmetrical structure, with a vertical plate structure on both ends of the slide 12, and two sliders are installed on the inner sides of the lower ends of the vertical plate structures at both ends. The four sliders are respectively installed in conjunction with the bed-making guide rails 1.2 on the corresponding sides and form a moving pair, so that the slide 12 can move back and forth on the bed 1, and the upper sides of the two ends of the slide 12 are connected by a flat plate to form a moving whole, and a triangular rib plate is provided between the two vertical plate structures and the flat plate to increase the rigidity and strength of the slide 12, and a long weight-reducing hole is provided in the middle position of the flat plate. Two parallel slide guide rails 12.2 and a transverse slide 11 are laterally provided on the upper left end of the flat plate. The transverse slide 11 is electrically connected to the upper machine and installed between the two slide guide rails 12.2. A movable slider is provided on the upper side of the transverse slide 11, and an encoder is integrated inside the transverse slide 11. The encoder can monitor the position of the corresponding slider in real time, thereby realizing the precise movement of the corresponding slider; two parallel slide guide rails 12 are also provided on the upper right end of the flat plate. .2 and a transverse slide 11, and the installation position is symmetrical with the left end; a plate-shaped slide frame 12.1 is vertically provided on the front side of the vertical plate structure at both ends of the slide 12, and the upper ends of the two slide frames 12.1 are connected by a square tube, thereby increasing the rigidity and strength of the slide frame 12.1; a slide motor 13 is installed on the lower side of the vertical plate structure at the left and right ends of the slide 12, and the two slide motors 13 are electrically connected to the upper machine, and the output shafts of the two slide motors 13 are coaxially fastened. There is a No. 1 gear 60, and the two No. 1 gears 60 are respectively engaged with the bed-making rack 1.1 on the corresponding side to form a gear-rack transmission structure, so that the two slide motors 13 rotate at the same speed at the same time to realize the forward and backward movement of the slide 12 on the bed-making 1, and the two slide motors 13 are integrated with encoders and brakes. The encoder can monitor the rotation angle of the corresponding gear in real time to determine the position of the slide 12, and the brake can realize the rotation locking of the output shaft of the corresponding slide motor 13, thereby realizing the positioning of the slide 12.

[0035] like Figure 2 、 Figure 3 As shown, the frame 3 is a left-right symmetrical structure. The left and right sides of the frame 3 are both vertically arranged plate structures. The plate structures on both sides are connected to form a moving whole by three square tubes. The lower ends of the left and right plate structures are provided with two slider structures. The frame 3 is installed on the upper side of the slide 12, and the four slider structures at the lower end of the frame 3 are respectively installed in conjunction with the corresponding four slide guide rails 12.2 to form a moving pair, so that the frame 3 can move left and right. The lower ends of the left and right plate structures of the frame 3 are respectively fixedly connected to the sliders on the corresponding transverse slides 11, so that the sliders on the two transverse slides 11 move at the same speed at the same time to realize the lateral movement and positioning of the frame 3; two first electric cylinder seats 3.1 are symmetrically provided on the outer sides of the left and right plate structures of the frame 3.

[0036] like Figure 2As shown, the feeding mechanism 7 mainly includes a feeding arm 26, an arm electric cylinder 25, a feeding arm 23, and an arm electric cylinder 24, and the feeding mechanism 7 is symmetrically arranged on the left and right sides of the frame 3, wherein the lower end of the feeding arm 26 in the right feeding mechanism 7 is rotatably installed on the outer lower end of the plate-like structure on the right side of the frame 3; the upper end of the arm electric cylinder 25 is rotatably connected to the first electric cylinder seat 3.1 on the right, and the lower end of the arm electric cylinder 25 is rotatably connected to the feeding arm 26, so that the arm electric cylinder 25 can control the up and down swing of the feeding arm 26 by telescoping; the arm electric cylinder 25 is electrically connected to the upper machine, and an encoder and a brake are integrated inside it. The encoder can monitor the elongation of the arm electric cylinder 25 in real time, thereby determining the swing position of the feeding arm 26, and the brake can realize the positioning of the feeding arm 26; the upper end of the feeding arm 23 is rotatably connected to the upper end of the feeding arm 26, and the feeding A hook groove is provided at the lower end of the arm 23, and the outer end teeth of the hook groove are higher than the inner end teeth, which is conducive to the stable loading of the cloth roll; the arm electric cylinder 24 is electrically connected to the upper machine and installed on the outside of the loading arm 26, and its lower end is rotatably connected to the loading arm 26, and the upper end of the arm electric cylinder 24 is rotatably connected to the loading arm 23, so that the arm electric cylinder 24 can control the swing of the loading arm 23 by telescoping. The arm electric cylinder 24 is integrated with an encoder and a brake. The encoder can monitor the elongation of the arm electric cylinder 24 in real time, thereby determining the phase of the loading arm 23 relative to the loading arm 26, and the brake can achieve phase locking of the loading arm 23 and the loading arm 26; a loading arm 26, an arm electric cylinder 25, a loading arm 23, and an arm electric cylinder 24 are also provided on the left side of the frame 3, and the installation position, working principle and action state of each component are the same as those of the corresponding components on the right.

[0037] like Figure 2 、 Figure 3As shown, the cloth feed roller 5 is a cylindrical structure, and its outer side is covered with a layer of rubber material to increase the friction between it and the cloth. The cloth feed roller 5 is installed on the rear side of the upper end of the frame 3 and can rotate freely; the cloth feed motor 8 is electrically connected to the upper machine and fixedly installed on the right side of the frame 3, and its output shaft is coaxially and tightly connected with the cloth feed roller 5, so that the cloth feed motor 8 can drive the rotation and locking of the cloth feed roller 5; the cloth feed motor 8 is integrated with an encoder and a brake, and the encoder can monitor the rotation angle of the cloth feed motor 8 in real time, thereby determining the speed of the cloth feed roller 5, and the brake can realize the locking of the cloth feed roller 5; two electric actuators 21 are also symmetrically installed on both sides of the frame 3, and the two electric actuators 21 The center lines are perpendicular to the central axis of the cloth feed roller 5. For example, an electric actuator 21 is fixedly installed obliquely on the inner rear end of the plate-like structure on the right side of the frame 3. A pressure roller seat 34 is provided on the upper end of the electric actuator 21. Two No. 1 pressure sensors 33 are provided between the pressure roller seat 34 and the protruding end of the electric actuator 21, and two joint bearings are provided side by side on the upper end of the pressure roller seat 34; an electric actuator 21, a pressure roller seat 34 and two No. 1 pressure sensors 33 are also fixedly installed on the inner side of the plate-like structure on the left side of the frame 3. The installation position and installation method of the above components are the same as those of the corresponding components on the right side. The two electric actuators 21 and the four No. 1 pressure sensors 33 are all electrically connected to the upper machine.

[0038] like Figure 3 、 Figure 10 、 Figure 11 As shown, the cloth pressing roller 22 is a cylindrical structure, and its outer side is coated with a layer of rubber material to increase the friction between it and the cloth. The two ends of the two cloth pressing rollers 22 are rotatably connected to the two joint bearings at the upper end of the corresponding side pressure roller seat 34; after the two electric actuators 21 are extended at the same time, the two cloth pressing rollers 22 can press the cloth against the lower side of the cloth feeding roller 5, and increase the contact area and static friction between the cloth and the cloth feeding roller 5, so that the cloth feeding motor 8 can drive the cloth feeding roller 5 to rotate and realize the cloth feeding; the four No. 1 pressure sensors 33 can monitor the pressure between the two cloth pressing rollers 22 and the cloth feeding roller 5 at the corresponding ends in real time, and feed back the pressure signal to the host computer, which transmits the adjustment information to the two electric actuators 21 respectively, so as to ensure that the pressure between the two ends of the cloth pressing roller 22 and the cloth feeding roller 5 is always the same, thereby ensuring that the cloth feeding will not be skewed; after the two electric actuators 21 are retracted at the same time, a larger gap will be formed between the two cloth pressing rollers 22 and the cloth feeding roller 5, which is convenient for loading the cloth after unwinding.

[0039] like Figure 2 、 Figure 3As shown, a guide roller slide 10 is vertically arranged at the front end of the left and right sides of the frame 3, and a movable slider is provided on the upper side of the two guide roller slides 10. A connecting plate 9 is fixedly connected to the two sliders. The connecting plate 9 is a plate-like structure and has a smooth round hole at its front end; the two guide roller slides 10 are electrically connected to the upper machine, and both must move at the same speed and at the same time to ensure that the smooth round holes at the front ends of the two connecting plates 9 on the left and right sides are always coaxial; the No. 1 guide roller 4 is a cylindrical structure, and the two ends of the No. 1 guide roller 4 are respectively rotatably installed in the smooth round holes at the front ends of the two connecting plates 9 on the left and right sides, so that the two guide roller slides 10 can realize the up and down movement and positioning of the No. 1 guide roller 4; and the guide roller slide 10 is integrated with an encoder and a brake. The encoder can monitor the position of the corresponding slider in real time to determine the position of the No. 1 guide roller 4, and the brake can realize the position locking of the No. 1 guide roller 4.

[0040] like Figure 3 、 Figure 10As shown, a cloth-supporting electric cylinder 20 is provided on the inner side of the right end of the frame 3, and the upper end of the cloth-supporting electric cylinder 20 is rotatably connected to the plate-like structure on the right side of the frame 3, the lower end of the inner rod of the cloth-supporting electric cylinder 20 is connected to the upper end of a joint bearing rod 64, and the upper end of the joint bearing rod 64 is installed inside the inner rod of the cloth-supporting electric cylinder 20 and constitutes a moving pair, a No. 2 pressure sensor 63 is provided on the upper side of the joint bearing rod 64, the No. 2 pressure sensor 63 is electrically connected to the upper machine, and a rubber pad 62 is provided between the upper side of the No. 2 pressure sensor 63 and the lower end of the inner rod of the cloth-supporting electric cylinder 20, The rubber pad 62 has a certain elasticity, and a smooth round hole is provided laterally at the lower end of the joint bearing rod 64; the rear end of the oblique push electric cylinder 35 is rotatably connected to the plate-like structure on the right side of the frame 3, and the front end of the oblique push electric cylinder 35 is rotatably connected to the cloth-supporting electric cylinder 20, and the oblique push electric cylinder 35 can realize the swing and positioning of the cloth-supporting electric cylinder 20 by telescoping; a group of tensioning force adjustment mechanisms consisting of the cloth-supporting electric cylinder 20, the second pressure sensor 63, the joint bearing rod 64, the rubber pad 62, and the oblique push electric cylinder 35 are also provided on the inner side of the left end of the frame 3, and the above-mentioned components are connected to the corresponding components on the right side. The installation operation principle is the same; the adjusting roller 36 is a cylindrical structure, and the two ends of the adjusting roller 36 are rotatably connected to the smooth round holes at the lower end of the corresponding joint bearing rod 64. The adjusting roller 36 can be used to dynamically adjust the tension of the cloth to make the cloth tension uniform during the entire laying process; the cloth-supporting electric cylinder 20 is electrically connected to the upper machine, and an encoder and a brake are integrated inside it. The encoder can monitor the elongation of the cloth-supporting electric cylinder 20 in real time, thereby ensuring that the adjusting roller 36 is always in a roughly horizontal state, and the brake can lock the height position of the adjusting roller 36; two No. 2 pressure sensors 6 3 can monitor the tension of the cloth in the cloth-pulling process in real time, and adjust the expansion and contraction of the corresponding cloth-stretching electric cylinder 20 by comparing the two pressure values, thereby ensuring that the adjusting roller 36 is always in a precisely horizontal state, and can also balance the tension at both ends of the cloth to avoid skew; the oblique-thrust electric cylinder 35 is electrically connected to the upper machine, and has an encoder and a brake integrated inside. The encoder can monitor the extension of the oblique-thrust electric cylinder 35 in real time, thereby determining the swing angle position of the cloth-stretching electric cylinder 20 and the adjusting roller 36, and the brake can realize the swing angle position positioning of the cloth-stretching electric cylinder 20 and the adjusting roller 36.

[0041] like Figure 4 、 Figure 5As shown, the cloth feeding mechanism 2 mainly includes a cloth sweeping roller 15, a belt 16, a cloth sweeping motor 17, a cloth feeding upper jaw 18, a second slider 19, a swing arm motor 27, a first connecting angle 28, a cloth sweeping swing arm 29, a cloth feeding lower jaw 30, a first camera 31, a cutting motor 32, an upper jaw slide 37, a third connecting angle 38, a second connecting angle 39, a lower jaw slide 40, an upper jaw first guide rail 41.1, an upper jaw rack 42, a fourth pulley 43, a second synchronous belt 44, a cloth cutter 45, a second pulley 46, a third pulley 47, a first synchronous belt 48, a first slider 49, a first pulley 50, a second guide roller 51, a camera motor 52, a second camera 53, and a second gear 61. The two lower jaw slides 40 are respectively fixedly mounted on the two slide frames 12. 1, a movable slider is provided on the outer sides of the two jaw slides 40, the slider on the right jaw slide 40 is fastened to the right end of the feed jaw plate 30 through a No. 1 connecting angle 28, and an air pipe buckle is fixedly provided on the side of the No. 1 connecting angle 28, and the slider on the left jaw slide 40 is fastened to the left end of the feed jaw plate 30 through a No. 2 connecting angle 39, so that the two jaw slides 40 can move up and down and position the feed jaw plate 30 by moving at the same time; encoders and brakes are integrated in the two jaw slides 40, and the encoders can monitor the position of the corresponding slider in real time, so as to determine the position of the feed jaw plate 30 and ensure that the feed jaw plate 30 is always in a horizontal state, and the brakes can realize the stable locking of the position of the feed jaw plate 30.

[0042] like Figure 4 As shown, the main body of the cloth feeding jaw 30 is a flat plate structure, and 14 rectangular teeth are provided at its front end. There are rectangular grooves between adjacent rectangular teeth, and a plurality of air holes are provided at equal intervals laterally on the front end of the rectangular teeth and the front end surface of the rectangular groove. All the air holes are connected through a transverse pipe inside the cloth feeding jaw 30, and the right end of the transverse pipe is connected to the inner end of the air pipe 30.1. The air pipe 30.1 is fixed by an air pipe buckle, and the outer end of the air pipe 30.1 is connected to the air station. The air station can suction air at negative pressure or blow air at positive pressure. That is, when the air station generates negative pressure, air can be sucked in through the air holes at the front end of the cloth feeding jaw 30. When the air station generates positive pressure, air can be blown out through the air holes at the front end of the cloth feeding jaw 30.

[0043] like Figure 3 、 Figure 4As shown, two vertical plates are provided on the left and right sides of the cloth feeding upper jaw plate 18; the No. 2 guide roller 51 is a cylindrical structure, which is installed on the rear side of the lower end of the vertical plates on both sides of the cloth feeding upper jaw plate 18 and can rotate freely; the two upper jaw slides 37 are respectively installed vertically and symmetrically on the outer upper ends of the two slide stand frames 12.1, and each upper jaw slide 37 is provided with a slider, and the slider on the left upper jaw slide 37 is fastened to the upper end of the left vertical plate of the cloth feeding upper jaw plate 18 through a No. 3 connecting angle 38, and the right The slider on the upper jaw slide 37 is also fastened to the upper end of the right vertical plate of the cloth feeding upper jaw plate 18 through a No. 3 connecting angle 38, so that the two upper jaw slides 37 can move simultaneously and at the same speed to realize the up and down movement and positioning of the cloth feeding upper jaw plate 18; the two upper jaw slides 37 are integrated with encoders and brakes. The encoder can monitor the position of the corresponding slider in real time, thereby determining the position of the cloth feeding upper jaw plate 18 and ensuring that the cloth feeding upper jaw plate 18 is always in a horizontal state. The brake can realize the stable locking of the position of the cloth feeding upper jaw plate 18.

[0044] like Figure 2 、 Figure 4 、 Figure 10 As shown, the main body of the cloth feeding upper jaw 18 is a flat plate structure, and 14 rectangular teeth are provided at its front end, and rectangular grooves are provided between adjacent rectangular teeth, and the structure of the rectangular teeth and rectangular grooves at the front end of the cloth feeding upper jaw 18 corresponds one to one with the structure of the rectangular teeth and rectangular grooves at the front end of the cloth feeding lower jaw 30; a row of scale lines is provided laterally at the front end of the upper side of the cloth feeding upper jaw 18, and the scale lines can be used to mark the positions of the edges of both sides of the cloth; an upper jaw guide rail 41.1 and an upper jaw rack 42 are fixedly provided laterally on the upper side of the cloth feeding upper jaw 18; a downward laser emitter is provided inside the cloth cutting device 45, and the laser emitter can emit laser and be used to cut cloth; the cloth cutting device 4 A slider structure is provided at the lower end, which is mounted in conjunction with the upper jaw first guide rail 41.1 to form a moving pair. A cutting motor 32 is fixedly mounted on the rear side of the cloth cutter 45. A second gear 61 is coaxially fastened to the output shaft of the cutting motor 32. The second gear 61 meshes with the upper jaw rack 42 to form a gear-rack transmission structure, thereby enabling the cutting motor 32 to achieve left and right movement and positioning of the cloth cutter 45. The cutting motor 32 is electrically connected to the upper computer and has an encoder and brake integrated therein. The encoder can monitor the rotation angle of the second gear 61 in real time to determine the position of the cloth cutter 45, and the brake can achieve stable locking of the position of the cloth cutter 45.

[0045] like Figure 2 、 Figure 4 、 Figure 5As shown, an upper jaw connecting frame 18.1 is provided laterally at the upper end of the cloth feeding upper jaw plate 18, and the two ends of the upper jaw connecting frame 18.1 are respectively fastened to the two vertical plates on the left and right sides of the upper jaw plate 18, thereby effectively increasing the structural strength of the upper jaw plate 18; an upper jaw second guide rail 41.2 is fixedly provided laterally on the front side of the upper jaw connecting frame 18.1; the camera motor 52 is electrically connected to the upper machine and fixedly mounted on the vertical plate on the right side of the cloth feeding upper jaw plate 18, and the No. 1 pulley 50 is a synchronous pulley structure, and the No. 1 pulley 50 is coaxially fastened to the output shaft of the camera motor 52; the No. 2 pulley The middle of 46 is a pulley structure, and a gear is coaxially arranged at its upper and lower ends. The second pulley 46 is vertically rotatably mounted at the middle position of the rear side of the upper jaw connecting frame 18.1. The structure of the third pulley 47 is the same as that of the second pulley 46. The third pulley 47 is mounted on the left side of the second pulley 46, and the gears provided at the upper and lower ends of the two are meshed with each other to form a gear transmission structure; the fourth pulley 43 is a synchronous pulley structure and is rotatably mounted at the rear left end of the upper jaw connecting frame 18.1; the first synchronous belt 48 is installed between the first pulley 50 and the second pulley 46 and constitutes a synchronous belt transmission Structure; the No. 2 synchronous belt 44 is installed between the No. 3 pulley 47 and the No. 4 pulley 43 and constitutes a synchronous belt transmission structure; the No. 1 slider 49 is installed on the upper jaw second guide rail 41.2 and constitutes a moving pair, the rear end of the No. 1 slider 49 is clamped and connected with the No. 1 synchronous belt 48, so that the No. 1 synchronous belt 48 can realize the movement and positioning of the No. 1 slider 49; the structure of the No. 2 slider 19 is the same as that of the No. 1 slider 49, the No. 2 slider 19 is installed on the upper jaw second guide rail 41.2 and constitutes a moving pair, the rear end of the No. 2 slider 19 is clamped and connected with the No. 2 synchronous belt 44, so that the No. 2 synchronous belt 44 can Realize the movement and positioning of slider No. 2 19; the rear end of the No. 1 camera 31 is installed on slider No. 1 49, and the camera angle can be adjusted. The No. 1 camera 31 can continuously collect high-definition images of the right edge of the cloth on the scale line, and transmit the data to the host computer, so as to judge whether the right edge of the cloth is offset during the cloth pulling process; the rear end of the No. 2 camera 53 is installed on slider No. 2 19, and the camera angle can be adjusted. The No. 2 camera 53 can continuously collect high-definition images of the left edge of the cloth on the scale line, and transmit the data to the host computer, so as to judge whether the left edge of the cloth is offset during the cloth pulling process.

[0046] When laying wide fabric, the output shaft of the camera motor 52 rotates clockwise, the No. 1 synchronous belt 48 rotates clockwise, and at the same time, under the transmission action of the gear meshing structure, the No. 2 synchronous belt 44 rotates counterclockwise, so that the No. 1 camera 31 and the No. 2 camera 53 move to the sides at the same time until the shooting areas of the No. 1 camera 31 and the No. 2 camera 53 are aligned with the left and right edges of the fabric respectively and then stop; when laying narrow fabric, the output shaft of the camera motor 52 rotates counterclockwise, and the No. 1 camera 31 and the No. 2 camera 53 move to the middle position at the same time until the shooting areas of the No. 1 camera 31 and the No. 2 camera 53 are aligned with the left and right edges of the fabric respectively and then stop;

[0047] like Figure 3 、 Figure 4 As shown, a swing arm motor 27 is fixed to the outer side of the vertical plates on both sides of the cloth feeding upper jaw plate 18, and the swing arm motor 27 is electrically connected to the upper machine, and a worm gear reduction structure is integrated inside the swing arm motor 27; the two ends of the cloth sweeping swing arm 29 are arm-shaped structures, and the two arm-shaped structures are connected as a moving whole by a swing arm connecting plate 29.1. The cross-section of the swing arm connecting plate 29.1 is T-shaped, which can effectively increase the overall strength of the cloth sweeping swing arm 29; the rear ends of the two arm-shaped structures are respectively fastened to the output shafts of the corresponding side swing arm motors 27, so that the two swing arm motors 27 rotate at the same speed at the same time to realize the up and down swinging and positioning of the cloth sweeping swing arm 29; encoders are integrated inside the two swing arm motors 27, which can monitor the rotation angle of the output shaft of the corresponding swing arm motor 27 in real time, thereby determining the position of the cloth sweeping swing arm 29; the worm gear reduction structure inside the swing arm motor 27 has a self-locking performance of motion, which can effectively prevent the spontaneous swinging of the cloth sweeping swing arm 29. The sweeping roller 15 is a cylindrical structure with two sweeping strips 15.1 on its outside, of which the sweeping strip 15.1 on the left half is a left-handed structure and the sweeping strip 15.1 on the other half is a right-handed structure; the sweeping roller 15 is mounted on the front end of the sweeping swing arm 29 and can rotate freely, and two pulleys are coaxially provided at both ends of the sweeping roller 15; the two sweeping motors 17 are electrically connected to the upper machine and are fixedly mounted on the left and right ends of the swing arm connecting plate 29.1 respectively, and a pulley is coaxially fastened to the output shaft of each sweeping motor 17, and a belt 16 is provided between the pulley at the output end of the sweeping motor 17 and the pulley at the end of the corresponding side sweeping roller 15 to form a belt transmission structure; thereby, the two sweeping motors 17 rotate at the same speed at the same time to make the sweeping roller 15 rotate clockwise, and the cloth is flattened from the middle to both sides through the sweeping strip 15.1, thereby improving the stacking quality of the cloth.

[0048] like Figure 3 、 Figure 4As shown, the cloth clamping mechanism mainly includes a cloth clamping frame 14, a cloth clamping lower jaw plate 54, a cloth clamping lower slide 55, a cloth clamping upper slide 57, and a cloth clamping upper jaw plate 59, wherein the cloth clamping frame 14 has vertical plate structures on both sides, and the two vertical plate structures are connected as a whole by a square tube, and the two vertical plate structures are fixed to the upper front end of the bed 1 by screws; a cloth clamping lower slide 55 is provided at the lower end of the outer side of the two vertical plate structures, and a slider which can slide up and down is provided on the outer side of each cloth clamping lower slide 55, and the two sliders are fastened to the left and right ends of the cloth clamping lower jaw plate 54 by a No. 4 connecting angle 56 respectively; thereby, the two cloth clamping lower slides 55 act simultaneously to realize the up and down movement and positioning of the cloth clamping lower jaw plate 54; the two cloth clamping lower slides 55 are both electrically connected to the upper machine, and are internally provided with encoders and brakes, and the encoders can monitor the The position of the corresponding slider can be used to know the position of the cloth lower jaw plate 54, and the cloth lower jaw plate 54 can be kept in a horizontal state at all times, and the brake can realize the positioning of the cloth lower jaw plate 54; a cloth upper slide 57 is provided at the upper end of the outer side of the two vertical plate structures, and a slider which can slide up and down is provided on the outer side of each cloth upper slide 57, and the two sliders are fastened to the left and right ends of the cloth upper jaw plate 59 through a No. 5 connecting angle 58 respectively; thus, the two cloth upper slides 57 can move up and down and position the cloth upper jaw plate 59 by simultaneous action; the two cloth upper slides 57 are both electrically connected to the upper machine, and are equipped with encoders and brakes inside, the encoders can monitor the position of the corresponding sliders in real time, so as to know the position of the cloth upper jaw plate 59, and can ensure that the cloth upper jaw plate 59 is kept in a horizontal state at all times, and the brake can realize the positioning of the cloth upper jaw plate 59.

[0049] The main body of the cloth-holding jaw plate 54 is a flat plate structure, with 15 rectangular teeth on its rear end. There are rectangular grooves between adjacent rectangular teeth. The rectangular teeth on the rear end of the cloth-holding jaw plate 54 correspond to the positions of the rectangular grooves on the front end of the cloth-feeding jaw plate 30 and are of equal size. The rectangular grooves on the rear end of the cloth-holding jaw plate 54 correspond to the positions of the rectangular teeth on the front end of the cloth-feeding jaw plate 30 and are of equal size. The lower side of the cloth-holding jaw plate 54 is provided with a plurality of stripes in the transverse direction to facilitate stable compression of the stacked fabric.

[0050] The main body of the cloth-clamping upper jaw plate 59 is a flat plate structure, and its rear end is provided with 15 rectangular teeth, and there are rectangular grooves between adjacent rectangular teeth, and the structure of the rectangular teeth and rectangular grooves at the rear end of the cloth-clamping upper jaw plate 59 corresponds one to one with the structure of the rectangular teeth and rectangular grooves at the rear end of the cloth-clamping lower jaw plate 54; a row of scale lines is provided horizontally at the rear end of the upper side of the cloth-clamping upper jaw plate 59, and the scale lines correspond one to one with the scale lines on the upper side of the cloth-feeding upper jaw plate 18; the lower side of the rear end of the cloth-clamping upper jaw plate 59 and the upper side of the rear end of the cloth-clamping lower jaw plate 54 are both provided with an inclined well grid pattern, which can effectively increase the friction between the cloth and make the cloth-clamping upper jaw plate 59 and the cloth-clamping lower jaw plate 54 more stable when clamping the cloth.

[0051] Example 1: Loading process, such as Figure 8 shown

[0052] 1) Input the diameter of the fabric roll into the host computer, which automatically determines the height of the fabric roll core rod and then executes the first loading step: the two arm electric cylinders 25 extend simultaneously, causing the two loading arms 26 to swing downward simultaneously. The two arm electric cylinders 24 extend simultaneously, causing the two loading arms 23 to swing downward simultaneously, so that the hook groove at the lower end of the loading arms 23 reaches the predetermined height.

[0053] 2) The rolled fabric is transported to the rear end of the fabric spreading machine, with its axis roughly parallel to the rear end of the fabric spreading machine, and then the axis of the rolled fabric is inserted into the hook groove at the lower end of the feeding arm 23;

[0054] 3) Execute the second step of loading: the two arm electric cylinders 25 retract simultaneously, causing the two loading arms 26 to swing upward simultaneously, and then the two arm electric cylinders 24 retract simultaneously, causing the two loading arms 23 to swing forward simultaneously, so that the fabric coil reaches the specified position, completing the loading process.

[0055] Example 2: Cloth loading process, such as Figure 8 shown

[0056] 1) After the loading process is completed, perform the first step of loading on the host computer:

[0057] The two electric actuators 21 contract simultaneously, causing the two cloth pressing rollers 22 to move downward to the lower position at the same time; the two sliders on the two guide roller slides 10 move downward at the same time, causing the No. 1 guide roller 4 to move downward to the lower position;

[0058] Then the two sliders on the two upper jaw slides 37 move upward at the same time, so that the cloth feeding upper jaw plate 18 reaches the upper position; the two cloth supporting electric cylinders 20 contract, so that the adjusting roller 36 moves upward;

[0059] Then, the sliders on the two lower jaw slides 40 move upward at the same time, causing the cloth feeding lower jaw plate 30 to move upward to a certain position; the two oblique push electric cylinders 35 extend at the same time, causing the two cloth supporting electric cylinders 20 to swing forward at the same time, thereby causing the adjusting roller 36 to move obliquely upward;

[0060] After that, a relatively spacious cloth feeding channel is formed between the cloth feeding roller 5, the adjusting roller 36, the cloth feeding upper jaw 18, the cloth pressing roller 22, the No. 1 guide roller 4, and the cloth feeding lower jaw 30;

[0061] 2) Open the fabric package and introduce the fabric from the upper fabric channel to the upper side of the feed jaw 30 so that the front end of the fabric is flush with the front end of the feed jaw 30;

[0062] 3) Perform the second step of uploading on the host computer:

[0063] The two sliders on the two upper jaw slides 37 move downward at the same time, causing the cloth feeding upper jaw plate 18 to move downward and press the front end of the cloth against the cloth feeding lower jaw plate 30; the two upper jaw slides 37 and the two lower jaw slides 40 act simultaneously, causing the cloth feeding upper jaw plate 18 and the cloth feeding lower jaw plate 30 to move downward at the same time while being clamped to each other, until the distance between the cloth feeding lower jaw plate 30 and the bed 1 is 1 mm; the camera motor 52 rotates, causing the No. 1 camera 31 and the No. 2 camera 53 to move simultaneously until they are above the left and right edges of the cloth;

[0064] Then, the two oblique push electric cylinders 35 retract simultaneously, and the two cloth supporting electric cylinders 20 are in a vertical state; the two sliders on the two guide roller slides 10 move upward simultaneously, so that the No. 1 guide roller 4 moves upward to the upper position; the two electric actuators 21 extend simultaneously, so that the two cloth pressing rollers 22 press the cloth tightly against the lower side of the cloth feeding roller 5;

[0065] Afterwards, the cloth-supporting electric cylinder 20 gradually extends, causing the adjusting roller 36 to move downward. During this process, the two No. 2 pressure sensors 63 dynamically monitor the pressure between the cloth and the adjusting roller 36; ① ​​If the pressure detected by the No. 2 pressure sensor 63 is less than the threshold range set by the upper computer program, the cloth-supporting electric cylinder 20 continues to extend downward, causing the pressure between the cloth and the adjusting roller 36 to continue to increase; ② If the pressure detected by the No. 2 pressure sensor 63 is greater than the threshold range set by the upper computer program, the cloth-feeding motor 8 drives the cloth-feeding roller 5 to rotate counterclockwise at an appropriate angle, feeding the cloth from the cloth roll 6, and reducing the pressure between the cloth and the adjusting roller 36; repeat the above ①② until the cloth-supporting electric cylinder 20 extends to the appropriate position and the pressure detected by the No. 2 pressure sensor 63 is within the set threshold range, and the cloth-feeding process is completed.

[0066] Example 3: The cloth pulling process, such as Figure 11 shown

[0067] 1) After the cloth feeding process is completed, the automatic cloth pulling program is started on the host computer. The two slide motors 13 rotate simultaneously, causing the slide 12 to move forward. During this process, the sliders on the two cloth clamping upper slides 57 move upward at the same time, causing the cloth clamping upper jaw 59 to move upward, thereby opening the cloth clamping device;

[0068] 2) After the rectangular teeth at the front end of the cloth feeding jaw 30 engage with the rectangular grooves at the rear end of the cloth clamping jaw 54, the sliders on the two cloth clamping upper slides 57 move downward simultaneously, causing the cloth clamping upper jaw 59 to move downward and press the front end of the cloth against the upper side of the cloth clamping jaw 54, thus completing the cloth clamping action;

[0069] 3) The two slide motors 13 rotate in opposite directions at the same time, causing the slide 12 to move backward at a uniform speed. The two swing arm motors 27 rotate at the same time, causing the sweeping arm 29 to swing downward, and the sweeping roller 15 to contact the cloth. The two sweeping motors 17 rotate, causing the sweeping roller 15 to rotate counterclockwise. In this process, the cloth feeding motor 8 drives the cloth feeding roller 5 to rotate counterclockwise at an appropriate speed according to the moving speed of the slide 12, continuously feeding the cloth, and the cloth supporting electric cylinder 20 adjusts its own extension and contraction according to the pressure values ​​monitored in real time by the two No. 2 pressure sensors 63, thereby ensuring that the tension on the cloth is balanced and consistent throughout the entire cloth pulling process.

[0070] 4) When the fabric is stretched to the set length, the slide 12 stops moving and the cutting motor 32 rotates, causing the fabric cutter 45 to move from the right end to the left end. During this process, the laser beam emitted by the fabric cutter 45 cuts the fabric into the set length. After that, the two swing arm motors 27 rotate in opposite directions at the same time, causing the sweeping arm 29 to swing upward, and the sweeping roller 15 breaks contact with the fabric, thus completing the laying of the first layer of fabric. During the stretching process, the correction system is always in monitoring and standby mode.

[0071] 5) When laying the second layer of fabric, the upper feed jaw 18 and the lower feed jaw 30 move upwards at the same time while being clamped to each other, so that the lower side of the feed jaw 30 maintains a certain distance from the first layer of fabric; then the two slide motors 13 rotate simultaneously, causing the slide 12 to move forward. At the same time, the upper cloth clamping jaw 59 moves upwards at a certain distance, thereby opening the cloth clamping device. Then, the lower cloth clamping jaw 54 moves upwards, causing the front end of the first layer of fabric to slide off the upper side of the lower cloth clamping jaw 54. Then, the lower cloth clamping jaw 54 moves downwards, and its lower side presses the front end of the first layer of fabric tightly against the bed 1.

[0072] 6) Repeat steps 2) to 5) above until the second layer of fabric is stacked. Repeat the above steps multiple times to complete the stacking of the predetermined number of fabric layers.

[0073] Example 4: Correction process, such as Figure 2 shown

[0074] The deviation correction system mainly consists of two transverse slides 11, camera No. 1 31, camera No. 2 53, scale lines, and an air station.

[0075] After the cloth clamping device clamps the front end of the cloth, camera No. 1 31 and camera No. 2 53 can record the scale data of the edge of the cloth and transmit it to the host computer; during the cloth pulling process, the two cameras monitor the scale data of the edge of the cloth in real time; when the cloth deviates to the left, the two transverse slides 11 act at the same time to move the frame 3 to the right for an appropriate displacement; when the cloth deviates to the right, the two transverse slides 11 simultaneously drive the frame 3 to move to the left for an appropriate displacement; the entire correction process adopts a negative feedback closed-loop servo adjustment mode; during the process of cloth transverse correction, the air station generates positive pressure and blows air to the lower side of the cloth through the air holes at the front end of the cloth feeding jaw plate 30, using air as a lubricant to prevent the lower layer of cloth from being deviated when the cloth moves transversely.

[0076] Example 5: Laminating coated fabrics, such as Figure 2 shown

[0077] Coated fabrics have high air tightness. When stacking coated fabrics, the air under the fabric cannot be discharged in time, resulting in air isolation drift problems and reducing the stacking quality of the fabric.

[0078] Therefore, during the drawing process of the coated fabric, the air station can generate negative pressure and promptly extract the air from the bottom of the fabric through the air holes at the front end of the feeding jaw 30, thereby avoiding the problem of air isolation drift of the coated fabric.

Claims

1. A cloth feeding mechanism of a cloth spreading machine, hereinafter referred to as a cloth feeding mechanism, characterized in that: Mainly include: The clamping device has 14 rectangular teeth at the front end of the feed jaw plate, and multiple air holes are also arranged at equal intervals horizontally at the front end. All the air holes are connected to the air station through an air pipe. The air station can suck air inward through the air holes at the front end of the feed jaw plate when the air station generates negative pressure, and blow air outward through the air holes at the front end of the feed jaw plate when the air station generates positive pressure. During the process of fabric lateral movement and correction, the air station generates positive pressure and blows appropriate air to the lower side of the fabric through the air holes at the front end of the feed jaw plate, using air as a lubricant to prevent the lower layer of fabric from shifting when the fabric moves laterally; during the process of pulling the coated fabric, the air station generates negative pressure and extracts the air from the lower side of the fabric in time through the air holes at the front end of the feed jaw plate, thereby avoiding the problem of air isolation drift of the coated fabric; the two jaw slides are respectively installed at the lower ends of the outer sides of the two slide frames, and can realize the up and down movement and positioning of the feed jaw plate; There are two vertical plates on the left and right sides of the cloth feed jaw plate, and 14 rectangular teeth are provided at the front end thereof. A row of scale lines is provided horizontally at the front end of the upper side of the cloth feed jaw plate, and the scale lines can be used to mark the position of the edges of the cloth on both sides. An upper jaw guide rail and an upper jaw rack are provided horizontally on the upper side of the cloth feed jaw plate. An upper jaw connecting frame is provided horizontally at the upper end of the cloth feed jaw plate, and an upper jaw guide rail is fixed horizontally on the front side of the upper jaw connecting frame. The two upper jaw slides are respectively vertically mounted on the outer upper ends of the two slide stand frames, and can realize the up and down movement and positioning of the cloth feed jaw plate. The cloth sweeping device includes two swing arm motors mounted on the vertical plates on both sides of the cloth feeding upper jaw plate. The two ends of the cloth sweeping swing arm are arm-shaped structures. The rear ends of the two arm-shaped structures are respectively fastened to the output shafts of the corresponding side swing arm motors. The cloth sweeping roller is mounted on the front end of the cloth sweeping swing arm and can be driven by the cloth sweeping motor. Two cloth sweeping strips with opposite rotation directions are provided on its outer side. The cloth cutting device includes a cloth cutter with a downward-facing laser emitter inside that can emit laser light and cut cloth. The cloth cutter is mounted on the upper side of the cloth feed jaw and can be moved and positioned by a cutting motor through a rack and pinion transmission structure. The correction system includes a camera motor installed on the vertical plate on the right side of the cloth feeding upper jaw plate, and can drive the rotation of the No. 1 synchronous belt. The pulley at the left end of the No. 1 synchronous belt and the pulley at the right end of the No. 2 synchronous belt form a gear meshing transmission structure, so that the two synchronous belts will rotate in opposite directions at the same time; the No. 1 camera is installed on the second guide rail of the upper jaw through the No. 1 slider and connected to the No. 1 synchronous belt; the No. 2 camera is installed on the second guide rail of the upper jaw through the No. 2 slider and connected to the No. 2 synchronous belt; the two cameras can continuously collect high-definition images of the edge of the fabric on the scale line, and transmit the data to the host computer to determine whether the fabric is offset during the cloth pulling process.

2. The cloth feeding mechanism of the cloth spreading machine according to claim 1, characterized in that: A No. 2 guide roller is rotatably mounted on the rear side of the lower ends of the vertical plates on both sides of the cloth feeding upper jaw plate.

3. The cloth feeding mechanism of the cloth spreading machine according to claim 1, characterized in that: The structure of the rectangular teeth and the rectangular groove at the front end of the upper cloth feeding jaw plate corresponds one to one with the structure of the rectangular teeth and the rectangular groove at the front end of the lower cloth feeding jaw plate.

4. The cloth feeding mechanism of the cloth spreading machine according to claim 1, characterized in that: The laser transmitter can emit a laser beam and cut cloth.

5. The cloth feeding mechanism of the cloth spreading machine according to claim 1, characterized in that: The cloth cutter can cut cloth in two directions, and there is no physical contact between the cloth cutter and the cloth, which will not cause the cloth cut to be pulled or deviated, thereby ensuring the cutting accuracy to the greatest extent.

6. The cloth feeding mechanism of the cloth spreading machine according to claim 1, characterized in that: The sweeping roller is a cylindrical structure with two sweeping strips on its outside, of which the sweeping strip on the left half is a left-handed structure and the sweeping strip on the other half is a right-handed structure; when the sweeping roller rotates clockwise, the sweeping strips can flatten the cloth from the middle to both sides, thereby improving the stacking quality of the cloth.

7. The cloth feeding mechanism of the cloth spreading machine according to claim 1, characterized in that: The upper and lower ends of the No. 2 pulley at the left end of the No. 1 synchronous belt are provided with two gears. The structure of the No. 3 pulley at the right end of the No. 2 synchronous belt is the same as that of the No. 2 pulley, and the No. 2 pulley and the No. 3 pulley form a gear meshing transmission structure.

8. The cloth feeding mechanism of the cloth spreading machine according to claim 1, characterized in that: The angles of the first camera and the second camera can be adjusted, and during the cloth pulling process, the two cameras are always aligned with the intersection of the left and right edges of the cloth and the scale lines respectively.

9. The cloth feeding mechanism of a cloth spreading machine according to claim 1, characterized in that: The worm gear reduction structure inside the swing arm motor has a motion self-locking performance, which can effectively prevent the sweeping cloth swing arm from swinging spontaneously.

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