A cloth spreading machine

Abstract

A cloth spreading machine includes a table and a main machine. The main machine can be movably arranged on the table. The main machine includes a frame and a cradle. The cradle can be movably arranged on the frame. An upper conveying device is arranged on the cradle. A lower conveying device and an edge-aligning device are arranged on the frame. The edge-aligning device includes a controller, a cradle motor, a first sensor, a second sensor, and an edge-measuring sensor for detecting the edge position of the cloth. The first sensor is arranged in the middle between the upper conveying device and the lower conveying device. The second sensor is arranged on the frame and is used to detect the other end of the roller frame. The second sensor can be triggered when the roller frame is rotated so that the third roller shaft presses the second roller shaft. The upper conveying device and the lower conveying device of the present invention can pull the cloth to the left and right directions while conveying the cloth, so that the cloth is flat and is conducive to improving the detection of the edge-measuring sensor, and the cloth laid out has a good neat effect. In addition, the cradle is limited from malfunctioning. The edge-measuring sensor is easy to install and has high precision. The cloth pressing device makes little noise when pressing the cloth.

Description

Technical Field

[0001] The invention relates to cloth spreading equipment, in particular to a cloth spreading machine. Background Art

[0002] As an important tool for spreading and stacking fabrics in the textile industry, the cloth spreading machine mainly spreads and stacks rolled fabrics on a platen. When the cloth spreading machine spreads the rolled fabrics, the two sides of the fabrics sometimes have wrinkles or partial folds, which need to be corrected by equipment or manual work to make the edges of the fabrics smooth. The flattening structure of the existing cloth spreading machine has a poor effect on the smoothing effect of the edges of the fabrics and is prone to malfunction. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a spreading machine with good spreading effect.

[0004] To achieve the above object, the technical solution of the present invention is: a spreading machine, comprising a table and a main machine, the main machine can be movably arranged on the table, the main machine comprises a frame and a cradle, the cradle can be movably arranged on the frame, an upper conveying device is arranged on the cradle, and a lower conveying device and an edge-aligning device are arranged on the frame;

[0005] The upper conveying device includes a first roller and two first side-pulling devices. The first roller is rotatably arranged on the cradle. The left and right halves of the outer circumference of the first roller are respectively provided with spiral patterns with opposite rotation directions. The two first side-pulling devices are respectively arranged on the sides of the left and right halves of the first roller.

[0006] The lower conveying device comprises a second roller, a third roller and a roller frame; the second roller is rotatably arranged on the frame, one end of the roller frame is rotatably arranged on the frame, the third roller is rotatably arranged on the roller frame, and the third roller can be pressed against or away from the second roller by rotating the roller frame; the left half and the right half of the outer circumference of the third roller are respectively provided with spiral patterns with opposite rotation directions;

[0007] The edge device includes a controller and a cradle motor, a first sensor, a second sensor, and an edge sensor for detecting the edge position of the cloth, all of which are connected to the controller; the cradle motor is used to drive the cradle to move, and the first sensor is arranged in the middle between the upper conveying device and the lower conveying device; the second sensor is arranged on the frame, and is used to detect the other end of the roller frame. The second sensor can be triggered when the roller frame is rotated so that the third roller shaft presses the second roller shaft.

[0008] The upper conveying device and the lower conveying device are both used for conveying the cloth, and are used for pulling the rolled cloth apart and conveying it to the table. The spiral patterns on the upper ends of the first roller of the upper conveying device and the second roller of the lower conveying device can push the cloth to the left and right while conveying the cloth, and pull the cloth apart. The first edge pulling device is used to pull the cloth apart to the left and right so that no wrinkles will be generated on the cloth. After the cloth is pulled apart to the left and right by the upper conveying device and the lower conveying device during the conveying process, the two sides of the cloth are wrinkle-free and straight. The edge measuring sensor arranged between the upper conveying device and the lower conveying device can detect the edge position of the cloth more accurately. The controller adjusts the position of the cradle according to the detection result of the edge measuring sensor, so that the cloth output is more flat and accurate after being laid flat.

[0009] The first sensor is used to detect whether the cloth is being transported by the upper conveying device and the lower conveying device, and the second sensor is used to detect whether the roller frame structure of the lower conveying device is in place. The first sensor can be an infrared sensor or an electric eye, and the second sensor can be a proximity sensor. After the controller receives the signal that both the first sensor and the second sensor are triggered, it will drive the cradle motor to adjust the left and right positions of the cradle according to the detection results of the edge sensor to avoid malfunction of the cradle.

[0010] Preferably, a lower edge pulling mechanism is provided on the frame, the lower edge pulling mechanism is provided obliquely below the second roller, the lower edge pulling mechanism comprises a fourth roller and two second edge pulling devices, the fourth roller is provided parallel to the side of the middle of the second roller, and the two second edge pulling devices are provided on the left and right sides of the fourth roller, respectively. The fourth roller of the lower edge pulling mechanism is used to convey the cloth forward, and the two second edge pulling devices are used to pull the cloth to the left and right directions, respectively.

[0011] Preferably, the first edge-pulling device and the second edge-pulling device each include a first pulley, a second pulley, an edge-pulling belt, an edge-pulling motor, and a supporting plate. The edge-pulling belt is wound around the first pulley and the second pulley. The edge-pulling motor is used to drive the first pulley to rotate. The outer surface of the edge-pulling belt is provided with tooth patterns or convex patterns. The supporting plate is provided between the first pulley and the second pulley to support the edge-pulling belt. The supporting plate is used to support the belt. The first pulley and the second pulley drive the belt to rotate and drag the cloth to move to the left or right to be pulled apart.

[0012] Preferably, the edge sensor comprises a mounting frame, a third sensor and a fourth sensor, the frame comprises a transversely arranged mounting rod, the mounting frame comprises a mounting plate and two side plates respectively arranged at the left and right ends of the mounting plate, both side plates are provided with a sleeve hole for sleeve the mounting rod, the lower end of the sleeve hole is provided with a slot, the slot extends to the bottom of the side plate, the third sensor and the fourth sensor are respectively arranged on the top surface and the bottom surface of the mounting plate, the front end of the mounting plate is provided with a locking plate, and the locking plate is provided with a locking screw for supporting the mounting rod. The third sensor and the fourth sensor can be infrared sensors or electric eyes. When the cloth covers the third sensor and the fourth sensor at the same time or does not cover the third sensor and the fourth sensor at the same time, the controller drives the cradle to move left or right by controlling the cradle motor to make the edge of the cloth between the third sensor and the fourth sensor. The mounting frame can be quickly installed on the mounting rod through the slot, and can be moved and adjusted on the installation. The third sensor and the fourth sensor are respectively installed on the top surface and the bottom surface of the mounting plate so that the third sensor and the fourth sensor can be installed in a staggered manner, and the movement range of the cloth between the two can be constrained to be smaller, thereby improving the flatness of the edge when the cloth is flattened.

[0013] Preferably, the roller frame includes a first rocker and a second rocker, one end of the first rocker is hinged to the frame, one end of the second rocker is hinged to the first rocker, the third roller is rotatably arranged on the second rocker, the first rocker is provided with an ear plate, the ear plate is provided with a limit groove, the second rocker is threadedly connected with an adjustment screw, the upper end of the adjustment screw passes through the limit groove, and a first spring for spreading the ear plate and the upper part of the adjustment screw is provided between the ear plate and the upper part of the adjustment screw. Rotating the roller frame allows the third roller to press the second roller or leave the second roller, which facilitates the insertion and adjustment of the fabric. The second rocker and the first spring allow the third roller to elastically press the second roller.

[0014] Preferably, the roller frame further comprises a third rocker, one end of the third rocker is hinged to the first rocker, a first handle extending upward is provided on the upper part of the first rocker, a second handle extending upward is provided on the upper part of the third rocker, the first handle and the second handle are arranged side by side, a second spring for stretching the first rocker and the third rocker apart is provided between them, a hook is provided on the other end of the third rocker, and a block for hooking the hook is provided on the frame. The hook of the third rocker is used to hook the roller frame on the frame, so that the roller frame rotated into place is fixed on the frame.

[0015] Preferably, it also includes a cloth pressing device, which can be moved forward and backward and is arranged on the table, and the cloth pressing device includes a cloth pressing frame and a movable frame, and the cloth pressing frame includes two side frames, and the two side frames are provided with a first slide slot and a second slide slot, the first slide slot is arranged in the front and rear directions, the second slide slot includes a transverse section arranged above the first slide slot and a vertical section arranged in front of the first slide slot, and the front end of the transverse section is connected with the upper end of the vertical section; the movable frame includes a slide seat, a first connecting rod, a second connecting rod, a tension spring, and a fourth rocker; one end of the slide seat extends into the first slide slot, and one end of the second connecting rod and the first connecting rod are both hinged to the slide seat, and the other end of the first connecting rod is hinged to the rear end of the fourth rocker, and the other end of the second connecting rod is hinged to the middle of the fourth rocker to form a hinge point, a limiting column is provided on the second connecting rod, and one end of the limiting column extends into the second slide slot, and a cloth pressing rod is provided at the front end of the fourth rocker, and the two ends of the tension spring are respectively connected to the slide seat and the position in front of the hinge point of the fourth rocker.

[0016] The cloth pressing device is used to press the end of the cloth flattened on the upper end of the table. After the cloth pressing device presses the end of the cloth, the main machine is moved to spread the cloth. The movable frame stretches forward and then presses vertically downward under the restriction of the first and second slides. The cloth pressing rod can extend forward and press the cloth. The impact and sound generated when pressing the cloth are much smaller than those of the traditional cloth pressing mechanism, reducing noise pollution.

[0017] Preferably, the transverse section of the second chute is an arc-shaped groove with a middle portion protruding upward, and the vertical section of the second chute is an arc-shaped groove with a lower portion protruding backward. The shape of the transverse section allows the limit column to rotate with the front portion of the first chute as the center of the circle, so that the movable frame can be quickly opened. The shape of the vertical section of the second chute allows the cloth pressing rod to have a slight backward pulling action when pressing the cloth, which is used to resist the pulling force of the main machine when spreading the cloth, so that the ends of the cloth spread on the table can be more neat.

[0018] Preferably, it also includes a detection device, wherein guide rails are provided at both ends of the table, and the host is provided with a running wheel that can travel on the top of the guide rail and a travel motor for driving the running wheel to rotate; the detection device includes a detection frame, a roller, an encoder, a fifth sensor, and a third spring, wherein the encoder and the fifth sensor are both arranged on the detection frame, the roller is arranged on the rotating shaft of the encoder, and the roller can roll on the side of the guide rail; one end of the detection frame is hinged to the side of the host, and the two ends of the third spring are respectively connected to the other end of the detection frame and the host; the sides of the front and rear of the table are provided with a positioning block for triggering the fifth sensor, and the travel motor, encoder, and fifth sensor are all connected to the controller. The detection device is used to detect the distance traveled by the host on the table as the position, and the controller can control the host to stop or reverse according to the trigger signal of the encoder and the fifth sensor. The fifth sensor is a proximity sensor.

[0019] By adopting the above technical solution, the beneficial effects of the present invention are as follows: the upper conveying device and the lower conveying device of the present invention can pull the cloth to the left and right directions while conveying the cloth, so that the cloth is flat and is conducive to improving the detection of the edge sensor, and the cloth laid out is neat and has a good effect. In addition, the cradle is limited from malfunctioning. The edge sensor is easy to install and has high precision. The cloth pressing device has low cloth pressing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the host of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the lower conveying device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the roller frame of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the mounting frame of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the detection device of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the pull-down edge mechanism of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the cloth pressing device of the present invention;

[0028] Fig. 9 It is a partial structural schematic diagram of the cloth pressing device of the present invention;

[0029] Fig.10 It is a lateral structural schematic diagram of the cloth pressing device of the present invention.

[0030] Description of main reference numerals:

[0031] Frame 1; mounting rod 11; mounting frame 12; mounting plate 121; side plate 122; locking plate 123; sleeve hole 124; slot 125; locking screw 126; cradle motor 13; cradle 2; first roller 21; first edge pulling device 22; cloth pressing device 3; side frame 31; slide seat 32; first connecting rod 33; second connecting rod 34; fourth rocker 35; cloth pressing rod 36; tension spring 37; table 4; guide rail 41; positioning block 42; lower conveying device 5; roller frame 5 1; first rocker 511; second rocker 512; third rocker 513; adjusting screw 514; first spring 515; second spring 516; hook 517; first handle 518; second handle 519; second roller 52; third roller 53; first sensor 71; second sensor 72; third sensor 73; fourth sensor 74; fifth sensor 75; detection device 8; detection frame 81; encoder 82; roller 83; third spring 84. DETAILED DESCRIPTION

[0032] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figure 1-Figure 10 As shown, a cloth spreading machine of the present invention comprises a table 4, a main machine, and a cloth pressing device 3. The main machine is movably arranged on the table 4, and the main machine comprises a frame 1 and a cradle 2, and the cradle 2 is movably arranged on the frame 1. An upper conveying device is arranged on the cradle 2, and a lower conveying device 5 and an edge-matching device are arranged on the frame 1.

[0034] The upper conveying device includes a first roller 21 and two first side-pulling devices 22. The first roller 21 is rotatably arranged on the cradle 2. The left and right halves of the outer circumference of the first roller 21 are respectively provided with spiral patterns with opposite rotation directions. The two first side-pulling devices 22 are respectively arranged on the sides of the left and right halves of the first roller. Figure 7 The structure of the second side drawing device 15 in the upper conveying device is identical. The upper conveying device can pull the cloth to the two sides when conveying the cloth, so that the cloth will not have wrinkles or folds.

[0035] like Figure 3 and Figure 4 As shown, the lower conveying device 5 includes a second roller 52, a third roller 53, and a roller frame 51; the second roller 52 is rotatably set on the frame 1, one end of the roller frame 51 is rotatably set on the frame 1, and the third roller 53 is rotatably set on the roller frame 51. Rotating the roller frame 51 can make the third roller 53 press or leave the second roller 52; the left half and the right half of the outer circumference of the third roller 53 are respectively provided with spiral patterns with opposite rotation directions.

[0036] Figure 4The roller frame shown includes a first rocking arm 511, a second rocking arm 512, and a third rocking arm 513. The front end of the first rocking arm 511 is hinged to the frame 1, the front end of the second rocking arm 512 is hinged to the front end of the first rocking arm 511, the third roller shaft 53 is rotatably arranged on the second rocking arm 512, the first rocking arm 511 is provided with an ear plate, the ear plate is provided with a limiting groove, the second rocking arm 512 is threadedly connected with an adjusting screw 514, the upper end of the adjusting screw 514 passes through the limiting groove, a first spring 515 is provided between the upper part of the ear plate and the adjusting screw 514 for stretching the two apart, and the two ends of the first spring 515 respectively press against the upper part of the ear plate and the adjusting screw 514. The second rocking arm 512 can rotate with the first rocking arm 515 so that the third roller shaft 53 is close to the second roller shaft 52, and the cloth is pressed against the second roller shaft 52. The second rocker 512 can be rotated by turning the adjusting screw, thereby adjusting the degree of pressure of the third roller 53 on the second roller 52; the first spring 515 enables the third roller 53 to elastically press the second roller 52, thereby preventing the cloth from being stuck by wrinkles or uneven thickness during transportation.

[0037] The front end of the third rocker 53 is hinged to the middle of the first rocker 51. The upper part of the first rocker 51 is provided with a first handle 518 with an upwardly extending end, and the upper part of the third rocker 53 is provided with a second handle 519 with an upwardly extending end. The first handle 518 and the second handle 519 are arranged side by side and close to each other. A second spring 516 for holding the first rocker 511 and the third rocker 513 apart is provided between them. The two ends of the second spring 516 respectively press against the first rocker 511 and the third rocker 513. A hook 517 is provided at the rear end of the third rocker 513. A block for the hook 517 to hook is provided on the frame 1. When the first rocker 511 is rotated so that the third roller 53 presses the second roller 52, the hook 517 can hook the block at the upper end of the frame 1, so that the roller frame is locked on the frame 1. Holding the first handle 518 and the second handle 519 at the same time can make the hook 517 release the block.

[0038] The edge detection device includes a controller and a cradle motor 13, a first sensor 71, a second sensor 72, and an edge detection sensor for detecting the edge position of the fabric. The cradle motor 13 is arranged on the frame 1, and is used to drive the cradle 2 ends to move left and right. A gear is arranged on the output shaft of the cradle motor 13, and a rack meshing with the gear is arranged at the bottom of the cradle. The first sensor 71 is arranged in the middle between the upper conveying device and the lower conveying device 5, and is used to detect whether there is fabric passing between the upper conveying device and the lower conveying device. The first sensor is an infrared sensor. The second sensor 72 is arranged on the frame, and is used to detect the other end of the roller frame 51. The second sensor 72 can be triggered when the roller frame 51 is rotated so that the third roller shaft 53 presses the second roller shaft 52. The second sensor is a proximity sensor. When the roller frame 51 is rotated, the front end of the first rocker 511 can rotate and approach the second sensor 72. When the hook hooks the block at the upper end of the frame, the front end of the first rocker 511 triggers the second sensor 72. After the controller receives the signal after both the first sensor 71 and the second sensor 72 are triggered, it will control the cradle motor 13 to drive the cradle to move according to the signal of the edge sensor, so as to avoid the cradle moving due to the false triggering of the edge sensor.

[0039] like Figure 2 and Figure 7 As shown, a lower edge pulling mechanism is provided on the frame 1, and the lower edge pulling mechanism is provided at the lower side of the front side of the second roller shaft, and the lower edge pulling mechanism includes a fourth roller shaft 14 and two second edge pulling devices 15, and the fourth roller shaft 14 is provided parallel to the side of the middle part of the second roller shaft 14, and the two second edge pulling devices 15 are provided at the left and right sides of the fourth roller shaft 14 respectively. The first edge pulling device and the second edge pulling device 15 have the same structure, and both include a first pulley, a second pulley, an edge pulling belt, an edge pulling motor, and a supporting plate, the edge pulling belt is wound around the first pulley and the second pulley, the edge pulling motor is used to drive the first pulley to rotate, and the outer surface of the edge pulling belt is provided with tooth patterns or convex patterns; the supporting plate is provided between the first pulley and the second pulley, and is used to support the edge pulling belt.

[0040] like Figure 3 and Figure 5 As shown, the edge sensor includes a mounting frame 12, a third sensor 73 and a fourth sensor 74. The frame 1 includes a transversely arranged mounting rod 11, and the mounting frame 12 includes a mounting plate 121 and two side plates 122 respectively arranged at the left and right ends of the mounting plate 121. Both side plates 122 are provided with sleeve holes 124 for sleeves of the mounting rod 11, and the mounting frame 12 can slide left and right on the mounting rod 11. The lower end of the sleeve hole 124 is provided with a card slot 125, and the card slot 125 extends to the bottom of the side plate, and the mounting frame 12 can be inserted into the mounting rod 11 through the card slot 125. The third sensor 73 and the fourth sensor 74 are respectively arranged on the top surface and the bottom surface of the mounting plate 121, and the front end of the mounting plate 121 is provided with a locking plate 123, and the locking plate 123 is provided with a locking screw 126 for supporting the mounting rod.

[0041] like Figure 8-Figure 10 As shown, the cloth pressing device 3 can be moved forward and backward and is arranged on the table 4. The cloth pressing device 3 includes a cloth pressing frame and a movable frame. The cloth pressing frame includes two side frames 31, and the two side frames 31 are connected by a connecting rod. The two side frames 31 are provided with a first slide 311 and a second slide 312. The first slide 311 is arranged in the front and rear directions and in the horizontal direction. The second slide 312 includes a transverse section arranged above the first slide 311 and a vertical section arranged in front of the first slide 311. The front end of the transverse section is connected to the upper end of the vertical section. The transverse section is an arc groove with a protruding upward in the middle part, and the vertical section is an arc groove with a protruding backward in the lower part. The movable frame includes a slide 32, a first connecting rod 33, a second connecting rod 32, a tension spring, and a fourth rocker; one end of the slide 32 extends into the first slide 311, and the slide can move forward and backward along the first slide 311. One end of the second connecting rod 34 and the first connecting rod 33 are both hinged to the slide 32, the other end of the first connecting rod 33 is hinged to the rear end of the fourth rocker 35, the other end of the second connecting rod 34 is hinged to the middle part of the fourth rocker 35 to form a hinge point, and a limiting column is provided on the second connecting rod 34, one end of the limiting column extends into the second slide groove 312 and can slide along the second slide groove 312, a cloth pressing rod 36 is provided at the front end of the fourth rocker 35, and the two ends of the tension spring 37 are respectively connected to the front side of the hinge point of the slide 32 and the fourth rocker 35.

[0042] like Figure 6 As shown, a detection device is provided on the frame 1. Guide rails 41 are provided at both ends of the table 4, and the main machine is provided with a wheel that can travel on the top of the guide rail and a travel motor for driving the wheel to rotate; the detection device includes a detection frame 81, a roller 83, an encoder 82, a fifth sensor 75, and a third spring 84. The encoder 82 and the fifth sensor 75 are both arranged on the detection frame 81, and the roller 83 is arranged on the rotating shaft of the encoder 82. The roller 83 can roll on the side of the guide rail 41, so that the encoder 82 can calculate the distance traveled by the main machine 1. One end of the detection frame 81 is hinged to the side of the frame 1 of the main machine, and the two ends of the third spring 84 are respectively connected to the other end of the detection frame 81 and the main machine for pulling the detection frame to the guide rail 41 so that the roller can press the guide rail. The sides of the front and rear of the table 4 are provided with a positioning block for triggering the fifth sensor 75. The travel motor, the encoder, and the fifth sensor are all connected to the controller.

[0043] When spreading the cloth, the rolled cloth is pulled open and spread on the table 4 through the upper conveying device and the lower conveying device in turn. The cloth pressing device 3 presses the end of the cloth, and the main machine moves on the table 4 to spread the cloth flat on the table 4.

[0044] The above-mentioned are only preferred embodiments of the present invention and cannot limit the scope of implementation of the present invention. All equivalent changes and decorations made according to the scope of the patent application of the present invention should still fall within the scope of the present invention.

Claims

1. A cloth spreading machine, comprising a table, a main machine, and a cloth pressing device, wherein the main machine is movably arranged on the table, the main machine comprises a frame and a cradle, and the cradle is movably arranged on the frame, wherein: The cradle is provided with an upper conveying device, and the frame is provided with a lower conveying device and an edge-matching device; The upper conveying device includes a first roller and two first side-pulling devices. The first roller is rotatably arranged on the cradle. The left and right halves of the outer circumference of the first roller are respectively provided with spiral patterns with opposite rotation directions. The two first side-pulling devices are respectively arranged on the sides of the left and right halves of the first roller. The lower conveying device comprises a second roller, a third roller and a roller frame; the second roller is rotatably arranged on the frame, one end of the roller frame is rotatably arranged on the frame, the third roller is rotatably arranged on the roller frame, and the third roller can be pressed against or away from the second roller by rotating the roller frame; the left half and the right half of the outer circumference of the third roller are respectively provided with spiral patterns with opposite rotation directions; The roller frame comprises a first rocker, a second rocker and a third rocker, one end of the first rocker is hinged to the frame, one end of the second rocker is hinged to the first rocker, the third roller shaft is rotatably arranged on the second rocker, the first rocker is provided with an ear plate, the ear plate is provided with a limiting groove, the second rocker is threadedly connected with an adjusting screw, the upper end of the adjusting screw passes through the limiting groove, and a first spring for spreading the ear plate and the upper part of the adjusting screw is provided between the ear plate and the upper part of the adjusting screw; One end of the third rocker is hinged to the first rocker, a first handle extending upward is provided on the upper part of the first rocker, a second handle extending upward is provided on the upper part of the third rocker, the first handle and the second handle are arranged side by side, a second spring for propping the first rocker and the third rocker apart is provided between the first rocker and the third rocker, a hook is provided on the other end of the third rocker, and a block for hooking the hook is provided on the frame; The edge detection device includes a controller and a cradle motor, a first sensor, a second sensor, and an edge detection sensor for detecting the edge position of the cloth, all of which are connected to the controller; the cradle motor is used to drive the cradle to move, and the first sensor is arranged in the middle between the upper conveying device and the lower conveying device; the second sensor is arranged on the frame and is used to detect the other end of the roller frame, and the second sensor can be triggered when the roller frame is rotated so that the third roller shaft presses the second roller shaft; The cloth pressing device can be moved forward and backward and is arranged on the table plate, and the cloth pressing device includes a cloth pressing frame and a movable frame, and the cloth pressing frame includes two side frames, and the two side frames are provided with a first slide slot and a second slide slot, the first slide slot is arranged in the front and rear directions, the second slide slot includes a transverse section arranged above the first slide slot and a vertical section arranged in front of the first slide slot, and the front end of the transverse section is connected with the upper end of the vertical section; the movable frame includes a slide seat, a first connecting rod, a second connecting rod, a tension spring, and a fourth rocker; one end of the slide seat extends into the first slide slot, and one end of the second connecting rod and the first connecting rod are both hinged to the slide seat, the other end of the first connecting rod is hinged to the rear end of the fourth rocker, and the other end of the second connecting rod is hinged to the middle part of the fourth rocker to form a hinge point, a limiting column is provided on the second connecting rod, and one end of the limiting column extends into the second slide slot, and a cloth pressing rod is provided at the front end of the fourth rocker, and the two ends of the tension spring are respectively connected to the slide seat and the front side of the hinge point of the fourth rocker.

2. A cloth spreading machine according to claim 1, characterized in that: A lower pull-edge mechanism is provided on the frame, which is arranged obliquely below the second roller. The lower pull-edge mechanism includes a fourth roller and two second pull-edge devices. The fourth roller is arranged parallel to the side of the middle of the second roller, and the two second pull-edge devices are respectively arranged on the left and right sides of the fourth roller.

3. A cloth spreading machine according to claim 2, characterized in that: The first side-pulling device and the second side-pulling device both include a first pulley, a second pulley, a side-pulling belt, a side-pulling motor, and a support plate. The side-pulling belt is wound around the first pulley and the second pulley. The side-pulling motor is used to drive the first pulley to rotate. The outer surface of the side-pulling belt is provided with teeth or convex patterns. The support plate is provided between the first pulley and the second pulley to support the side-pulling belt.

4. A cloth spreading machine according to claim 1, characterized in that: The edge measuring sensor includes a mounting frame, a third sensor and a fourth sensor. The frame includes a transversely arranged mounting rod. The mounting frame includes a mounting plate and two side plates respectively arranged at the left and right ends of the mounting plate. Both side plates are provided with sleeve holes for sleeves on the mounting rods. The lower ends of the sleeve holes are provided with card grooves, which extend to the bottom of the side plates. The third sensor and the fourth sensor are respectively arranged on the top and bottom surfaces of the mounting plate. A locking plate is provided at the front end of the mounting plate, and a locking screw is provided on the locking plate for supporting the mounting rod.

5. A cloth spreading machine according to claim 1, characterized in that: The transverse section of the second sliding groove is an arc-shaped groove with a middle portion protruding upward, and the vertical section of the second sliding groove is an arc-shaped groove with a lower portion protruding backward.

6. A cloth spreading machine according to claim 1, characterized in that: It also includes a detection device, wherein guide rails are provided at both ends of the left and right ends of the table, and the main machine is provided with a shaped running wheel that can run on the top surface of the guide rail and a running motor for driving the running wheel to rotate; the detection device includes a detection frame, a roller, an encoder, a fifth sensor, and a third spring, wherein the encoder and the fifth sensor are both arranged on the detection frame, the roller is arranged on the rotating shaft of the encoder, and the roller can roll on the side of the guide rail; one end of the detection frame is hinged to the side of the main machine, and the two ends of the third spring are respectively connected to the other end of the detection frame and the main machine; the sides of the front and rear of the table are provided with positioning blocks for triggering the fifth sensor, and the running motor, the encoder, and the fifth sensor are all connected to the controller.

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