CN111634736B

CN111634736B - Automatic cloth feeding mechanism for thermoprinting machine

Info

Publication number: CN111634736B
Application number: CN202010479852.9A
Authority: CN
Inventors: 张天益; 刘井海; 王旭光; 朱天宇; 解朋朋; 缪鑫; 周倩; 许金阳; 吉兴雨; 周杰; 牛超杰; 江白雪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2022-06-03
Anticipated expiration: 2040-05-29
Also published as: CN111634736A

Abstract

The utility model provides an automatic work feed mechanism for thermoprinting machine, includes that beading machine one, reel three, reel four, marching type compress work feed mechanism, beading machine two, sensor and frame, the feed end of the extension board of frame has sets up beading machine one in pairs, the discharge end of the extension board of frame sets up beading machine two in pairs, set up about reel three and reel four and through the feed end of roller support mounting at marching type compress work feed mechanism, the sensor passes through the hot melt adhesive dress and fixes in the frame bottom and between beading machine one and reel three of feed end. The automatic cloth feeding mechanism is designed according to the working condition of the thermoprinting machine, and the cloth can enter step by step while pressing edges, so that the personnel operation can be reduced, the production efficiency is improved, and the production cost is reduced.

Description

Automatic cloth feeding mechanism for thermoprinting machine

Technical Field

The invention relates to the field of thermoprinting machines, in particular to an automatic cloth feeding mechanism for a thermoprinting machine.

Background

The thermoprinting presses the thermoprinting foil on the printed piece, melts the adhesive layer of the thermoprinting foil to separate the pigment carrier from the paper base, the image pigment is hot-pressed on the printing surface until the pigment is adhered on the printed surface, the cloth is processed by the thermoprinting method, the cloth feeding mechanism is used for feeding the cloth into the thermoprinting machine, because the paper covers the cloth during thermoprinting, the cloth is soft and has large elasticity, the cloth surface wrinkles are often generated during the thermoprinting process, at the moment, the broken phenomenon can occur on the decorative pattern on the cloth after thermoprinting, therefore, the thermoprinting needs people to scrape the cloth surface without stopping a long plate, the labor cost is increased, and during the thermoprinting, the printing cross width is often close to the width of the cloth, at the moment, the blanket is printed by the ink on the blanket during the thermoprinting due to the non-cloth covering below the printing ink in a certain area on the paper, at the moment, the blanket needs to be replaced, otherwise, the ink on the blanket could be printed on the underlying cloth, causing mottling! And blanket replacement is prohibitively expensive. The existing manual processing mode is that two people pull the cloth edge to enable the cloth to enter the hot stamping in a spreading state, so that a worker often scalds hands, and if the cloth is not a closed hot stamping machine, a large amount of printing ink gas is generated in the hot stamping process, so that the worker is very smoked.

Disclosure of Invention

The invention aims to provide an automatic cloth feeding mechanism for a thermoprinting machine, which is designed according to the working condition of the thermoprinting machine and can realize the step-by-step entering of cloth while pressing edges, thereby reducing the personnel operation, improving the production efficiency and reducing the production cost,

an automatic cloth feeding mechanism for a hot stamping machine comprises a first beading machine, a third winding drum, a fourth winding drum, a stepping cloth pressing and feeding mechanism, a second beading machine, a sensor and a frame, wherein the first beading machine is arranged at the feed end of a support plate of the frame in pairs, the second beading machine is arranged at the discharge end of the support plate of the frame in pairs, the third winding drum and the fourth winding drum are arranged up and down and are arranged at the feed end of the stepping cloth pressing and feeding mechanism through a roll shaft support, and the sensor is fixed at the bottom of the frame through hot melt adhesive and is arranged between the first beading machine and the third winding drum at the feed end;

the stepping cloth pressing and feeding mechanism comprises a shaft bracket, a first threaded pressure rod, a first adjusting nut, a first spring, a long limiting plate, a connecting rod, a first pressing plate, a motor bracket, a second adjusting nut, a second spring, a hollow shaft sleeve, a second threaded pressure rod, a U-shaped plate, a frame shaft, a pressure rod, a second pressing plate, a limiting track, a rotating wheel and a linkage rod, wherein a connecting shaft of the shaft bracket penetrates through the shaft sleeve in the middle of the linkage rod, one end of the linkage rod is provided with the hollow shaft sleeve, the other end of the hollow shaft sleeve is hinged with the upper end connecting end of the first threaded pressure rod, the hollow shaft sleeve is respectively arranged on the first threaded pressure rod and the second threaded pressure rod, the first threaded pressure rod is sleeved with the first spring and is tightly pressed from the upper part through the first adjusting nut, the second threaded pressure rod is sleeved with the second spring and is tightly pressed from the lower part through the second adjusting nut, the motor is fixed on one side of the shaft bracket through the motor bracket, the rotating wheel is arranged on a rotating shaft of the motor, the linkage rod end is connected with the upper end of the first threaded pressure rod and is provided with the limiting track, the driving shaft of the rotating wheel moves in the limiting track through the driving limiting track of the motor, one lower end of the threaded pressing rod is fixed at the fixed end of the middle part of the limiting long plate, two ends of the limiting long plate are connected with two ends of the pressing plate through the connecting rod, the lower end of the threaded pressing rod is fixed above the middle part of the U-shaped plate, two ends of the U-shaped plate are connected with two ends of the pressing plate through the pressing rod, and two ends of the frame shaft are connected with the middle part of the pressing rod.

As a further improvement of the invention, the first beading machine and the second beading machine both comprise a beading machine frame, a first beading machine pressure bar, an electric cylinder, a motor, a driving rod, a screw rod, a triangular slide block, a pressure wheel mounting frame, a limiting cylinder, a roller, a limiting sleeve, a limiting plate, a track shaft, a spring box, a second beading machine pressure bar and a pressure wheel, wherein the bottom of the beading machine frame is provided with a clamping groove for mounting, the rear end of the first beading machine pressure bar is connected with the rear side plate of the beading machine frame in a hinged manner, the middle part of the first beading machine pressure bar is erected on the clamping groove of a support plate of the beading machine frame, the second beading machine pressure bar is arranged below the front end of the first beading machine pressure bar, the second beading machine pressure bar is sleeved with a spring and penetrates through the spring box, the bottom ends of the second beading machine pressure bar mounting frame are provided with a row of pressure wheels, the first beading machine pressure bar groove is arranged in the pressure bar mounting frame, the roller groove is arranged in the middle part of the first beading machine pressure bar groove, and the roller moves back and forth on the beading machine pressure bar groove, the gyro wheel passes through the electric jar and supports, blank holder frame below both sides respectively have a motor, motor shaft passes through the actuating lever and links to each other and pass the screw hole on triangle slider upper portion with corresponding the lead screw, two holes of triangle slider lower part are passed by the track axle, the track axle is fixed between the backup pad of blank holder frame and posterior lateral plate, pinch roller mounting bracket both sides top respectively has a spacing cylinder, spacing cylinder just passes blank holder frame backup pad and triangle slider and links to each other in corresponding limiting sleeve through the limiting plate, and the push rod top of electric jar has two gyro wheels to pull down the depression bar and can push down, and the depression bar passes the spring box, and the rigid coupling is on wheelset upper portion to realize that the wheelset compresses tightly, loosen the back spring box and lift the depression bar.

As a further improvement of the invention, the sensor is a laser sensor, and the sensor is mainly used for monitoring whether the advancing of the cloth deviates or not.

In summary, the present invention has the following design points:

1. the automatic cloth feeding mechanism can realize simultaneous edge pressing and stepping entering, controls stepping speed through stepping equipment, enables cloth paper to be tensioned through tension of a thermoprinting machine, and enables the paper to be tightly attached to cloth by two groups of edge pressing machines on two sides, so that people do not need to scrap the cloth surface without stopping a long plate, and the operation labor is reduced;

3. the cloth pressing is carried out through the edge pressing machine, the edge pressing machine replaces manpower, and therefore a closed design can be adopted, overflow of ink gas is reduced, and therefore the production environment is improved;

4. there is the wheelset in this application beading machine, whether the gos forward through laser sensor monitoring cloth is skew, detects skew back beading machine automatic adjustment to do not need artifical nurse.

Drawings

FIG. 1 is a schematic view of an automated feed mechanism of the present application;

FIG. 2 is a schematic diagram of the present application;

FIG. 3 is a front view of the present application;

FIG. 4 is a first schematic view of the step-by-step cloth pressing and feeding mechanism of the present application;

FIG. 5 is a schematic view of a step-by-step cloth pressing and feeding mechanism of the present application;

FIG. 6 is a first schematic view of a first edger of the present application;

FIG. 7 is a second schematic view of a beader of the present application;

FIG. 8 is a third schematic view of a blankholder of the present application;

FIG. 9 is a fourth schematic view of the beading machine of the present application;

in the figure:

1. a feeding mechanism; 2. an automated cloth feeding mechanism; 3. a semi-enclosed thermoprinting machine; 4. a storage mechanism; 2-1, a first edge pressing machine; 2-1-1. a frame of a beading machine; 2-1-2, pressing rod I of a beading machine; 2-1-3. an electric cylinder; 2-1-4. a motor; 2-1-5. a driving rod; 2-1-6. a screw rod; 2-1-7. a triangular sliding block; 2-1-8, a pinch roller mounting rack; 2-1-9, a limiting cylinder; 2-1-10, a pressure bar groove; 2-1-11, rolling wheels; 2-1-12, a limit sleeve; 2-1-13, a limit plate; 2-1-14, a threaded hole; 2-1-15. pore; 2-1-16. orbit axis; 2-1-17. spring case; 2-1-18. a second press rod of the edge pressing machine; 2-1-19. a pinch roller; 2-2, winding drum III; 2-3, winding drum four; 2-4, a step-by-step cloth pressing and feeding mechanism; 2-4-1, a shaft bracket; 2-4-2, a first threaded pressure lever; 2-4-3, adjusting the first nut; 2-4-4. a first spring; 2-4-5, a limit long plate; 2-4-6, connecting rod; 2-4-7, pressing a first plate; 2-4-8. a motor; 2-4-9. a motor frame; 2-4-10, adjusting a second nut; 2-4-11. a second spring; 2-4-12 hollow shaft sleeve; 2-4-13. a second threaded pressure lever; 2-4-14. U-shaped plate; 2-4-15, a frame shaft; 2-4-16. a pressure lever; 2-4-17, pressing a second plate; 2-4-18, a limit track; 2-4-19. a turntable; 2-4-20, a linkage rod; 2-5, a second beading machine; 2-6, laser sensor; 2-7, a frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The invention aims to provide an automatic cloth feeding mechanism for a hot stamping machine, which is designed according to the working condition of the hot stamping machine, and can realize the step-by-step entering of cloth while edge pressing, thereby reducing the personnel operation, improving the production efficiency and reducing the production cost.

As an embodiment of the invention, the application provides an automatic cloth feeding mechanism for a hot stamping machine as shown in fig. 1-9, which comprises a first beading machine 2-1, a third winding drum 2-2, a fourth winding drum 2-3, a step-by-step cloth pressing and feeding mechanism 2-4, a second beading machine 2-5, a sensor and a frame 2-7, wherein the first beading machine 2-1 is arranged in pairs at the feeding end of a support plate of the frame 2-7, the second beading machine 2-5 is arranged in pairs at the discharging end of the support plate of the frame 2-7, the third winding drum 2-2 and the fourth winding drum 2-3 are arranged up and down and are installed at the feeding end of the step-by-step cloth pressing and feeding mechanism 2-4 through a roll shaft bracket, the sensor is fixed at the bottom of the frame 2-7 through hot melt adhesive and is arranged between the first beading machine 2-1 and the third winding drum 2-2 at the feeding end, the sensor adopts laser sensors 2-6, and the sensor is mainly used for monitoring whether the cloth is deviated in advancing or not, and is commonly used at present;

the first beading machine 2-1 and the second beading machine 2-5 both comprise a beading machine frame 2-1-1, a beading machine pressure rod one 2-1-2, an electric cylinder 2-1-3, a motor one 2-1-4, a driving rod 2-1-5, a screw rod 2-1-6, a triangular slider 2-1-7, a pinch roller mounting frame 2-1-8, a limiting cylinder 2-1-9, a roller 2-1-11, a limiting sleeve 2-1-12, a limiting plate 2-1-13, a track shaft 2-1-16, a spring box 2-1-17, a beading machine pressure rod two 2-1-18 and a pinch roller 2-1-19, wherein the bottom of the beading machine frame 2-1-1 is provided with a clamping groove for mounting, the rear end of the first beading machine pressure bar 2-1-2 is connected with the rear side plate of the beading machine frame 2-1-1 in a hinged mode, the middle part of the first beading machine pressure bar 2-1-2 is erected on a clamping groove of a supporting plate of the beading machine frame 2-1-1, a second beading machine pressure bar 2-1-18 is arranged below the front end of the first beading machine pressure bar 2-1-2, a spring is sleeved on the second beading machine pressure bar 2-1-18 and penetrates through a spring box 2-1-17, a pinch roller mounting frame 2-1-8 is arranged at the bottom end of the second beading machine pressure bar 2-1-18, a row of pinch rollers 2-1-19 is arranged in the pinch roller mounting frame 2-1-8, and a pinch roller groove 2-1-10 is arranged in the middle part of the first beading machine pressure bar 2-1-2, the roller 2-1-11 moves back and forth on the pressure bar groove 2-1-10, the roller 2-1-11 is supported by the electric cylinder 2-1-3, two sides of the lower part of the frame 2-1-1 of the beading machine are respectively provided with a motor 2-1-4, a rotating shaft of the motor 2-1-4 is connected with a corresponding screw rod 2-1-6 through a driving rod 2-1-5 and passes through a threaded hole 2-1-14 at the upper part of a triangular sliding block 2-1-7, two holes 2-1-15 at the lower part of the triangular sliding block 2-1-7 are passed through by a track shaft 2-1-16, the track shaft 2-1-16 is fixed between a supporting plate and a rear side plate of the frame 2-1-1 of the beading machine, the two sides of the pinch roller mounting frame 2-1-8 are respectively provided with a limiting cylinder 2-1-9, the limiting cylinders 2-1-9 are arranged in corresponding limiting sleeves 2-1-12 and penetrate through a support plate of a frame 2-1-1 of the beading machine through limiting plates 2-1-13 to be connected with triangular sliders 2-1-7, two roller lower pressing rods are arranged at the top end of a push rod of an electric cylinder in work and can press the pressing rods downwards, the pressing rods penetrate through a spring box and are fixedly connected to the upper part of a wheel set, so that the wheel set is pressed tightly, and the pressing rods are lifted up by the spring box after being loosened;

the invention relates to a stepping cloth pressing and feeding mechanism 2-4, which comprises a shaft bracket 2-4-1, a threaded pressure rod I2-4-2, an adjusting nut I2-4-3, a spring I2-4-4, a limiting long plate 2-4-5, a connecting rod 2-4-6, a pressure plate I2-4-7, a motor II 2-4-8, a motor bracket 2-4-9, an adjusting nut II 2-4-10, a spring II 2-4-11, a hollow shaft sleeve 2-4-12, a threaded pressure rod II 2-4-13, a U-shaped plate 2-4-14, a rack shaft 2-4-15, a pressure rod 2-4-16, a pressure plate II 2-4-17, a limiting rail 2-4-18, a positioning rod II 2-4-18, a positioning rod II 2-4-12, a positioning rod II, a positioning rod 2-4-14, a positioning rod, a positioning, A rotating wheel 2-4-19 and a linkage rod 2-4-20, wherein a connecting shaft of the shaft bracket 2-4-1 penetrates through a shaft sleeve in the middle of the linkage rod 2-4-20, one end of the linkage rod 2-4-20 is provided with a hollow shaft sleeve 2-4-12, the other end of the hollow shaft sleeve is hinged with the connecting end of the upper end of a first threaded compression rod 2-4-2, the hollow shaft sleeves 2-4-12 are respectively arranged on the first threaded compression rod 2-4-2 and a second threaded compression rod 2-4-13, the first threaded compression rod 2-4-2 is sleeved with a first spring 2-4-4 and is tightly pressed from the top through a first adjusting nut 2-4-3, the second threaded compression rod 2-4-13 is sleeved with a second spring 2-4-11 and is tightly pressed downwards through a second adjusting nut 2-4-10, the motor II 2-4-8 is fixed on one side of the shaft bracket 2-4-1 through a motor bracket 2-4-9, a rotating wheel 2-4-19 is installed on a rotating shaft of the motor II 2-4-8, a limiting track 2-4-18 is arranged on the outer side of the connecting position of the end part of the linkage rod 2-4-20 and the upper end of the threaded compression rod I2-4-2, a driving shaft of the rotating wheel 2-4-19 is driven by the motor II 2-4-8 to move in the limiting track 2-4-18, the lower end of the threaded compression rod I2-4-2 is fixed on the fixed end in the middle of the limiting long plate 2-4-5, two ends of the limiting long plate 2-4-5 are connected with two ends of the pressing plate I2-4-7 through a connecting rod 2-4-6, the lower ends of the threaded compression bars 2-4-13 are fixed above the middle parts of the U-shaped plates 2-4-14, the two ends of the U-shaped plates 2-4-14 are connected with the two ends of the pressing plates 2-4-17 through the compression bars 2-4-16, and the two ends of the frame shafts 2-4-15 are connected with the middle parts of the compression bars 2-4-16.

This application cloth thermoprint assembly line is as shown in fig. 2, including feed mechanism 1, automatic work feed mechanism 2, semi-enclosed thermoprinting machine 3 and receiving mechanism 4, feed mechanism 1, automatic work feed mechanism 2, semi-enclosed thermoprinting machine 3 and receiving mechanism 4 set gradually, feed mechanism 1 sets up the feed end at automatic work feed mechanism 2, receiving mechanism 4 sets up at the 3 discharge ends of semi-enclosed thermoprinting machine, 2-7 one end of frame of automatic work feed mechanism 2 stretch into to semi-enclosed thermoprinting machine 3 in lean on blanket one side at semi-enclosed thermoprinting machine 3.

The design point of the stepping cloth pressing and feeding mechanism is as follows;

the principle of the stepping cloth pressing and feeding machine is as follows;

the second motor 2-4-8 is provided with a rotating wheel 2-4-19 which is provided with an eccentric lug which is matched with a limiting track 2-4-18 on the linkage rod 2-4-20, so that when the motor rotates, one end of the linkage rod 2-4-20 is pressed down and lifted up, the center of the linkage rod is hinged to the shaft bracket 2-4-1, and the shaft bracket 2-4-1 is fixed on the frame.

One end of the linkage rod 2-4-20 is hinged with a threaded compression rod I2-4-2, an adjusting nut I2-4-3 is arranged on the threaded compression rod I2-4-2, the threaded compression rod I2-4-2 penetrates through the limiting long plate 2-4-5, a spring I2-4-4 is arranged in the middle, and a limiting block at the tail end of the threaded compression rod I2-4-2 abuts against the bottom of the limiting long plate 2-4-5. Two ends of the limiting long plate 2-4-5 are connected with the first pressing plate 2-4-7 through the connecting rod 2-4-6. The spring can be compressed by rotating the adjusting nut I2-4-3, so that the pressure of the pressure plate I2-4-7 is increased.

The other end of the linkage rod 2-4-20 is hinged with a hollow shaft sleeve 2-4-12, a threaded pressure rod II 2-4-13 is installed inside the hollow shaft sleeve 2-4-12, an adjusting nut II 2-4-10 is installed at the top, and a spring II 2-4-11 is installed between the adjusting nut II 2-4-10 and the hollow shaft sleeve 2-4-12. The bottom of the threaded pressure lever II 2-4-13 is fixedly connected with a U-shaped plate 2-4-14 which is hinged with a pressure lever 2-4-16, the center of the pressure lever 2-4-16 is hinged on a frame shaft 2-4-15, and the tail end of the pressure lever 2-4-16 is fixed with a pressure plate II 2-4-17. And 2, rotating the second adjusting nut to achieve 2-4-10 movement effects: when the end of the linkage rod 2-4-20 matched with the motor is lifted, the two pressing plates are lifted through the combined transmission, and when the end of the linkage rod 2-4-20 matched with the motor falls, the two pressing plates fall.

The principle of the beading machine is as follows;

edge pressing principle: two rollers 2-1-11 are arranged at the top end of a push rod of the electric cylinder 2-1-3, a first pressing rod 2-1-2 of the beading machine can be pulled downwards to press a second pressing rod 2-1-18 of the beading machine, and the second pressing rod 2-1-18 of the beading machine penetrates through the spring box 2-1-17 and is fixedly connected to the upper part of the pinch roller mounting frame 2-1-8, so that the pinch roller mounting frame 2-1-8 is pressed. After the spring box 2-1-17 is loosened, the press rod 2-1-18 of the beading machine is lifted.

The fine adjustment principle of the edge pressing machine is as follows;

the first motor 2-1-4 drives the driving rod 2-1-5, one end of the driving rod 2-1-5 is an optical axis, the other end of the driving rod is a screw rod 2-1-6, the screw rod partially penetrates through a threaded hole 2-1-14 in the triangular sliding block 2-1-7, and two holes 2-1-15 in the triangular sliding block 2-1-7 are matched with the cylindrical track shaft 2-1-16, so that the triangular sliding block can only move along the axial direction. A limiting plate 2-1-13 on the triangular sliding block extends out of the rack, and a limiting cylinder 2-1-9 with a limiting sleeve 2-1-12 sleeved on the pinch roller mounting rack 2-1-8 is arranged at the tail end of the triangular sliding block. The motor rotates to drive the triangular sliding block 2-1-7 to realize that the limiting sleeve 2-1-12 pulls and pushes the limiting cylinder 2-1-9 on the pinch roller mounting frame 2-1-8, and the driving wheel set can drive the wheel set per se, but does not drive when only performing the edge pressing effect, thereby realizing fine adjustment.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. An automatic cloth feeding mechanism for a thermoprinting machine comprises a first beading machine (2-1), a third winding drum (2-2), a fourth winding drum (2-3), a stepping cloth pressing and feeding mechanism (2-4), a second beading machine (2-5), a sensor and a frame (2-7), it is characterized in that the feeding end of the support plate of the frame (2-7) is provided with a first beader (2-1) which is arranged in pairs, the discharge ends of the support plates of the machine frame (2-7) are provided with second beaders (2-5) which are arranged in pairs, the third winding drum (2-2) and the fourth winding drum (2-3) are arranged up and down and are arranged at the feed end of the stepping cloth pressing and feeding mechanism (2-4) through a roll shaft bracket, the sensor is fixed at the bottom of the rack (2-7) through hot melt adhesive and between the first beading machine (2-1) and the third winding drum (2-2) at the feeding end;

the stepping cloth pressing and feeding mechanism (2-4) comprises a shaft bracket (2-4-1), a first threaded compression bar (2-4-2), a first adjusting nut (2-4-3), a first spring (2-4-4), a long limiting plate (2-4-5), a connecting rod (2-4-6), a first pressing plate (2-4-7), a first motor (2-4-8), a motor bracket (2-4-9), a second adjusting nut (2-4-10), a second spring (2-4-11), a hollow shaft sleeve (2-4-12), a second threaded compression bar (2-4-13), a U-shaped plate (2-4-14), a frame shaft (2-4-15), a compression bar (2-4-16), A second pressure plate (2-4-17), a limiting track (2-4-18), a rotating wheel (2-4-19) and a linkage rod (2-4-20), wherein a connecting shaft of the shaft bracket (2-4-1) passes through a shaft sleeve in the middle of the linkage rod (2-4-20), one end of the linkage rod (2-4-20) is hinged with a first threaded pressure rod (2-4-2), the other end of the linkage rod (2-4-20) is hinged with a hollow shaft sleeve (2-4-12), a second threaded pressure rod (2-4-13) is arranged inside the hollow shaft sleeve (2-4-12),

the screw thread pressure bar I (2-4-2) is sleeved with a spring I (2-4-4) and is tightly pressed from the upper part through an adjusting nut I (2-4-3), the screw thread pressure bar II (2-4-13) is sleeved with a spring II (2-4-11) and is tightly pressed downwards through an adjusting nut II (2-4-10), the motor I (2-4-8) is fixed on one side of the shaft bracket (2-4-1) through a motor bracket (2-4-9), a rotating wheel (2-4-19) is installed on a rotating shaft of the motor I (2-4-8), a limiting track (2-4-18) is arranged on the outer side of the connecting part of the end part of the linkage rod (2-4-20) and the upper end of the screw thread pressure bar I (2-4-2), the driving shaft of the rotating wheel (2-4-19) moves in the limiting track (2-4-18), the rotating wheel (2-4-19) is driven by a motor I (2-4-8), an eccentric lug on the rotating wheel (2-4-19) is matched with the limiting track (2-4-18) on the linkage rod (2-4-20), the lower end of the threaded compression bar I (2-4-2) is fixed at the fixed end of the middle part of the limiting long plate (2-4-5), the two ends of the limiting long plate (2-4-5) are connected with the two ends of the pressing plate I (2-4-7) through connecting rods (2-4-6), the lower end of the threaded compression bar II (2-4-13) is fixed above the middle part of the U-shaped plate (2-4-14), two ends of the U-shaped plate (2-4-14) are connected with two ends of the pressing plate II (2-4-17) through pressing rods (2-4-16), and two ends of the frame shaft (2-4-15) are connected with the middle parts of the pressing rods (2-4-16).

2. The automatic cloth feeding mechanism for the hot stamping machine as claimed in claim 1, wherein: the first beading machine (2-1) and the second beading machine (2-5) respectively comprise a beading machine frame (2-1-1), a beading machine pressure rod (2-1-2), an electric cylinder (2-1-3), a motor (2-1-4), a driving rod (2-1-5), a screw rod (2-1-6), a triangular sliding block (2-1-7), a pressure wheel mounting frame (2-1-8), a limiting cylinder (2-1-9), a roller (2-1-11), a limiting sleeve (2-1-12), a limiting plate (2-1-13), a track shaft (2-1-16), a spring box (2-1-17), a beading machine pressure rod (2-1-18) and a pressure wheel (2-1-19), the bottom of the beading machine frame (2-1-1) is provided with a clamping groove for installation, the rear end of a first beading machine pressure bar (2-1-2) is connected with a rear side plate of the beading machine frame (2-1-1) in a hinged mode, the middle part of the first beading machine pressure bar (2-1-2) is erected on the clamping groove of a support plate of the beading machine frame (2-1-1), a second beading machine pressure bar (2-1-18) is arranged below the front end of the first beading machine pressure bar (2-1-2), the second beading machine pressure bar (2-1-18) is sleeved with a spring and penetrates through a spring box (2-1-17), the bottom end of the second beading machine pressure bar (2-1-18) is provided with a pressure wheel installation frame (2-1-8), and a row of pressure wheels (2-1-19) are arranged in the pressure wheel installation frame (2-1-8), the middle of the first pressing rod (2-1-2) of the beading machine is provided with a pressing rod groove (2-1-10), the roller (2-1-11) moves back and forth on the pressing rod groove (2-1-10), the roller (2-1-11) is supported by the electric cylinder (2-1-3), two sides of the lower portion of the beading machine frame (2-1-1) are respectively provided with a second motor (2-1-4), a rotating shaft of each second motor (2-1-4) is connected with the corresponding screw rod (2-1-6) through a driving rod (2-1-5), the screw rod (2-1-6) penetrates through a threaded hole (2-1-14) in the upper portion of the triangular sliding block (2-1-7), and two holes (2-1-15) in the lower portion of the triangular sliding block (2-1-7) are formed by the rail shaft (2-1-10) The track shaft (2-1-16) is fixed between a supporting plate and a rear side plate of a beading machine frame (2-1-1), a limiting cylinder (2-1-9) is arranged above each of two sides of the pinch roller mounting frame (2-1-8), the limiting cylinder (2-1-9) is arranged in a corresponding limiting sleeve (2-1-12), and the limiting sleeve (2-1-12) penetrates through the supporting plate of the beading machine frame (2-1-1) through a limiting plate (2-1-13) to be connected with a triangular sliding block (2-1-7).

3. The automatic cloth feeding mechanism for the hot stamping machine as claimed in claim 1, wherein: the sensor adopts a laser sensor (2-6).